Vertical-Control Subsystem for Automatic Coal Mining

NASA Technical Reports Server (NTRS)

Griffiths, W. R.; Smirlock, M.; Aplin, J.; Fish, R. B.; Fish, D.

1984-01-01

Guidance and control system automatically positions cutting drums of double-ended longwall shearer so they follow coal seam. System determines location of upper interface between coal and shale and continuously adjusts cutting-drum positions, upward or downward, to track undulating interface. Objective to keep cutting edges as close as practicable to interface and thus extract as much coal as possible from seam.

Cutter-loader apparatus having overhung shearer drum

DOE Office of Scientific and Technical Information (OSTI.GOV)

Groger, H.; Harms, E.E.

1984-05-01

A longwall mining machine includes a drum cutter-loader and face conveyor wherein the drum cutter-loader is overhung and is supported by a support arm adjacent to the mine face. Nozzles direct high pressure liquid jets against the forward edge of the support arm to cut away the mining face and permit the face side support arm to advance as the mining machine advances. In one embodiment the nozzles are provided along an inclined cutting edge at the forward end of the support arm. Such nozzles may be fixed or oscillating. In an alternative embodiment the nozzles are provided in themore » cylindrical edge zone of the shearer drum and direct the high pressure fluid jets against the cutter edge at the forward end of the support arm.« less

Technical devices of powered roof support for the top coal caving as automation objects

NASA Astrophysics Data System (ADS)

Nikitenko, M. S.; Kizilov, S. A.; Nikolaev, P. I.; Kuznetsov, I. S.

2018-05-01

In the paper technical devices for the top coal caving as automation objects in the composition of the longwall mining complex (LTCC) are considered. The proposed concept for automation of the top coal caving process allows caving efficiency to be ensured, coal dilution to be prevented, conveyor overloading to be prevented, the shearer service personnel to be unloaded, the influence of the “human factor” to be reduced.

Longwall Guidance and Control Development

NASA Technical Reports Server (NTRS)

1982-01-01

The longwall guidance and control (G&C) system was evaluated to determine which systems and subsystems lent themselves to automatic control in the mining of coal. The upper coal/shale interface was identified as the reference for a vertical G&C system, with two sensors (the natural backgound and the sensitized pick) being used to locate and track this boundary. In order to insure a relatively smooth recession surface (roof and floor of the excavated seam), a last and present cut measuring instrument (acoustic sensor) was used. Potentiometers were used to measure elevations of the shearer arms. The intergration of these components comprised the vertical control system (pitch control). Yaw and roll control were incorporated into a face alignment system which was designed to keep the coal face normal to its external boundaries. Numerous tests, in the laboratory and in the field, have confirmed the feasibility of automatic horizon control, as well as determining the face alignment.

Methane emissions and airflow patterns on a longwall face: Potential influences from longwall gob permeability distributions on a bleederless longwall panel.

PubMed

Schatzel, S J; Krog, R B; Dougherty, H

2017-01-01

Longwall face ventilation is an important component of the overall coal mine ventilation system. Increased production rates due to higher-capacity mining equipment tend to also increase methane emission rates from the coal face, which must be diluted by the face ventilation. Increases in panel length, with some mines exceeding 6,100 m (20,000 ft), and panel width provide additional challenges to face ventilation designs. To assess the effectiveness of current face ventilation practices at a study site, a face monitoring study with continuous monitoring of methane concentrations and automated recording of longwall shearer activity was combined with a tracer gas test on a longwall face. The study was conducted at a U.S. longwall mine operating in a thick, bituminous coal seam and using a U-type, bleederless ventilation system. Multiple gob gas ventholes were located near the longwall face. These boreholes had some unusual design concepts, including a system of manifolds to modify borehole vacuum and flow and completion depths close to the horizon of the mined coalbed that enabled direct communication with the mine atmosphere. The mine operator also had the capacity to inject nitrogen into the longwall gob, which occurred during the monitoring study. The results show that emission rates on the longwall face showed a very limited increase in methane concentrations from headgate to tailgate despite the occurrence of methane delays during monitoring. Average face air velocities were 3.03 m/s (596 fpm) at shield 57 and 2.20 m/s (433 fpm) at shield 165. The time required for the sulfur hexafluoride (SF 6 ) peak to occur at each monitoring location has been interpreted as being representative of the movement of the tracer slug. The rate of movement of the slug was much slower in reaching the first monitoring location at shield 57 compared with the other face locations. This lower rate of movement, compared with the main face ventilation, is thought to be the product of a flow path within and behind the shields that is moving in the general direction of the headgate to the tailgate. Barometric pressure variations were pronounced over the course of the study and varied on a diurnal basis.

Development of sensitized pick coal interface detector system

NASA Technical Reports Server (NTRS)

Burchill, R. F.

1979-01-01

One approach for detection of the coal interface is measurement of the pick cutting hoads and shock through the use of pick strain gage load cells and accelerometers. The cutting drum of a long wall mining machine contains a number of cutting picks. In order to measure pick loads and shocks, one pick was instrumented and telementry used to transmit the signals from the drum to an instrument-type tape recorder. A data system using FM telemetry was designed to transfer cutting bit load and shock information from the drum of a longwall shearer coal mining machine to a chassis mounted data recorder.

Characterization of airborne float coal dust emitted during continuous mining, longwall mining and belt transport.

PubMed

Shahan, M R; Seaman, C E; Beck, T W; Colinet, J F; Mischler, S E

2017-09-01

Float coal dust is produced by various mining methods, carried by ventilating air and deposited on the floor, roof and ribs of mine airways. If deposited, float dust is re-entrained during a methane explosion. Without sufficient inert rock dust quantities, this float coal dust can propagate an explosion throughout mining entries. Consequently, controlling float coal dust is of critical interest to mining operations. Rock dusting, which is the adding of inert material to airway surfaces, is the main control technique currently used by the coal mining industry to reduce the float coal dust explosion hazard. To assist the industry in reducing this hazard, the Pittsburgh Mining Research Division of the U.S. National Institute for Occupational Safety and Health initiated a project to investigate methods and technologies to reduce float coal dust in underground coal mines through prevention, capture and suppression prior to deposition. Field characterization studies were performed to determine quantitatively the sources, types and amounts of dust produced during various coal mining processes. The operations chosen for study were a continuous miner section, a longwall section and a coal-handling facility. For each of these operations, the primary dust sources were confirmed to be the continuous mining machine, longwall shearer and conveyor belt transfer points, respectively. Respirable and total airborne float dust samples were collected and analyzed for each operation, and the ratio of total airborne float coal dust to respirable dust was calculated. During the continuous mining process, the ratio of total airborne float coal dust to respirable dust ranged from 10.3 to 13.8. The ratios measured on the longwall face were between 18.5 and 21.5. The total airborne float coal dust to respirable dust ratio observed during belt transport ranged between 7.5 and 21.8.

In-mine testing of a natural background sensor, part B

NASA Technical Reports Server (NTRS)

Martzloff, F. D.

1981-01-01

The capability of a natural background sensor for measuring the thickness of top coal on a longwall face was examined. The limitations on the time during which tests could be performed, and the roof conditions, did not produce readings of top coal measurements during the shearer operation. It was demonstrated that the system is capable to survive operating conditions in the mine environment, while the static tests confirmed that the natural background sensor approach is a valid method of measuring top coal thickness in mines where the roof rock provides a constant radiation level. It is concluded that the practical results will improve sequent development of an integrated vertical control system which is information from the natural background system.

Feasibility of high recovery highwall mining equipment. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1981-01-01

Three equipment systems exhibited significant promise: the RSV Miner, a surface longwall using standard underground equipment, and the variable angle auger. Other equipment systems showing considerable merit were the surface shortwall, and the two extended depth augers. Of the three most significant systems, the RSV Miner exhibits the greatest versatility and adaptability. It may be used competently in many surface mining applications and readily adapts to geologic anomalies and changing seam heights. The machine employs steering and guidance equipment and provides the necessary capabilities for extended depth operation. Safety is good, as no men are required to work underground. However,more » most important is the system's recovery factor of approximately 75% to 80% of the in-situ coal reserve within reach. The surface longwall system using standard underground equipment (preferably a ranging drum shearer in conjunction with shield supports) is most suited to either a trench mining or a modified area mining application. Both applications would allow the length of the face to be held constant. Another important consideration is legal requirements for a tailgate entry, which would necessitate additional equipment for development in a modified area mining application. When compared to surface shortwall, surface longwall exhibits higher productivity, a far greater equipment selection which allows system tailoring to geologic conditions, and greater roof control due to the significantly smaller section of overburden that must be supported. Recovery should approach, and possibly exceed, 90% of the coal in-place. The variable angle auger, which is currently only a concept, fills a very real need for which no other equipment is available at this time.« less

Characterization of airborne float coal dust emitted during continuous mining, longwall mining and belt transport

PubMed Central

Shahan, M.R.; Seaman, C.E.; Beck, T.W.; Colinet, J.F.; Mischler, S.E.

2017-01-01

Float coal dust is produced by various mining methods, carried by ventilating air and deposited on the floor, roof and ribs of mine airways. If deposited, float dust is re-entrained during a methane explosion. Without sufficient inert rock dust quantities, this float coal dust can propagate an explosion throughout mining entries. Consequently, controlling float coal dust is of critical interest to mining operations. Rock dusting, which is the adding of inert material to airway surfaces, is the main control technique currently used by the coal mining industry to reduce the float coal dust explosion hazard. To assist the industry in reducing this hazard, the Pittsburgh Mining Research Division of the U.S. National Institute for Occupational Safety and Health initiated a project to investigate methods and technologies to reduce float coal dust in underground coal mines through prevention, capture and suppression prior to deposition. Field characterization studies were performed to determine quantitatively the sources, types and amounts of dust produced during various coal mining processes. The operations chosen for study were a continuous miner section, a longwall section and a coal-handling facility. For each of these operations, the primary dust sources were confirmed to be the continuous mining machine, longwall shearer and conveyor belt transfer points, respectively. Respirable and total airborne float dust samples were collected and analyzed for each operation, and the ratio of total airborne float coal dust to respirable dust was calculated. During the continuous mining process, the ratio of total airborne float coal dust to respirable dust ranged from 10.3 to 13.8. The ratios measured on the longwall face were between 18.5 and 21.5. The total airborne float coal dust to respirable dust ratio observed during belt transport ranged between 7.5 and 21.8. PMID:28936001

Development of sensitized pick coal interface detector system

NASA Technical Reports Server (NTRS)

Burchill, R. F.

1982-01-01

One approach for detection of the coal interface is measurement of pick cutting loads and shock through the use of pick strain gage load cells and accelerometers. The cutting drum of a long wall mining machine contains a number of cutting picks. In order to measure pick loads and shocks, one pick was instrumented and telemetry used to transmit the signals from the drum to an instrument-type tape recorder. A data system using FM telemetry was designed to transfer cutting bit load and shock information from the drum of a longwall shearer coal mining machine to a chassis mounted data recorder. The design of components in the test data system were finalized, the required instruments were assembled, the instrument system was evaluated in an above-ground simulation test, and an underground test series to obtain tape recorded sensor data was conducted.

The influence of coal physical and mechanical properties and mining energy consumption factor on airborne respirable dust level

DOE Office of Scientific and Technical Information (OSTI.GOV)

Koziel, A.; Malec, M.; Wardas, E.

1999-07-01

The fact that there are not any explicitly defined relationships describing the influence of physical and mechanical properties of coal and of energy consumption factor on dust level prompted Polish and American investigators to carry out a joint research project within the framework of the US-Poland Maria Sklodowska-Curie Joint Fund II. The paper presents methods used to perform tests under laboratory conditions at the Pittsburgh Research Laboratory as well as under real conditions in the course of coal cutting in Polish coal mines. Measuring systems and results of the tests are described. The analysis carried out has provided a basismore » for determining the influence of specified operational parameters, i.e., coal compression strength R{sub c}, coal cuttability factor A, energy consumption factor of mining E{sub uc}, load of cutting drums as well as of laboratory parameters, i.e., grindability, coal breakage characteristics (product size distribution), moisture content, volatile and fixed carbon content, specific energy of crushing on a level of generated dust (total dust, specific dust and airborne respirable dust). The effect of technical parameters, i.e., face height, airflow velocity in a face, amount and pressure of water in spraying systems of longwall shearers, depth of cut taken by a cutting drum and application of powered cowls on dust level under operating conditions are also presented. Results of the tests made it possible to work out guidelines relating to methods and technology for effective reduction of dust emission on longwall faces.« less

Application of Elements of TPM Strategy for Operation Analysis of Mining Machine

NASA Astrophysics Data System (ADS)

Brodny, Jaroslaw; Tutak, Magdalena

2017-12-01

Total Productive Maintenance (TPM) strategy includes group of activities and actions in order to maintenance machines in failure-free state and without breakdowns thanks to tending limitation of failures, non-planned shutdowns, lacks and non-planned service of machines. These actions are ordered to increase effectiveness of utilization of possessed devices and machines in company. Very significant element of this strategy is connection of technical actions with changes in their perception by employees. Whereas fundamental aim of introduction this strategy is improvement of economic efficiency of enterprise. Increasing competition and necessity of reduction of production costs causes that also mining enterprises are forced to introduce this strategy. In the paper examples of use of OEE model for quantitative evaluation of selected mining devices were presented. OEE model is quantitative tool of TPM strategy and can be the base for further works connected with its introduction. OEE indicator is the product of three components which include availability and performance of the studied machine and the quality of the obtained product. The paper presents the results of the effectiveness analysis of the use of a set of mining machines included in the longwall system, which is the first and most important link in the technological line of coal production. The set of analyzed machines included the longwall shearer, armored face conveyor and cruscher. From a reliability point of view, the analyzed set of machines is a system that is characterized by the serial structure. The analysis was based on data recorded by the industrial automation system used in the mines. This method of data acquisition ensured their high credibility and a full time synchronization. Conclusions from the research and analyses should be used to reduce breakdowns, failures and unplanned downtime, increase performance and improve production quality.

A Dynamic Health Assessment Approach for Shearer Based on Artificial Immune Algorithm

PubMed Central

Wang, Zhongbin; Xu, Xihua; Si, Lei; Ji, Rui; Liu, Xinhua; Tan, Chao

2016-01-01

In order to accurately identify the dynamic health of shearer, reducing operating trouble and production accident of shearer and improving coal production efficiency further, a dynamic health assessment approach for shearer based on artificial immune algorithm was proposed. The key technologies such as system framework, selecting the indicators for shearer dynamic health assessment, and health assessment model were provided, and the flowchart of the proposed approach was designed. A simulation example, with an accuracy of 96%, based on the collected data from industrial production scene was provided. Furthermore, the comparison demonstrated that the proposed method exhibited higher classification accuracy than the classifiers based on back propagation-neural network (BP-NN) and support vector machine (SVM) methods. Finally, the proposed approach was applied in an engineering problem of shearer dynamic health assessment. The industrial application results showed that the paper research achievements could be used combining with shearer automation control system in fully mechanized coal face. The simulation and the application results indicated that the proposed method was feasible and outperforming others. PMID:27123002

VRLane: a desktop virtual safety management program for underground coal mine

NASA Astrophysics Data System (ADS)

Li, Mei; Chen, Jingzhu; Xiong, Wei; Zhang, Pengpeng; Wu, Daozheng

2008-10-01

VR technologies, which generate immersive, interactive, and three-dimensional (3D) environments, are seldom applied to coal mine safety work management. In this paper, a new method that combined the VR technologies with underground mine safety management system was explored. A desktop virtual safety management program for underground coal mine, called VRLane, was developed. The paper mainly concerned about the current research advance in VR, system design, key techniques and system application. Two important techniques were introduced in the paper. Firstly, an algorithm was designed and implemented, with which the 3D laneway models and equipment models can be built on the basis of the latest mine 2D drawings automatically, whereas common VR programs established 3D environment by using 3DS Max or the other 3D modeling software packages with which laneway models were built manually and laboriously. Secondly, VRLane realized system integration with underground industrial automation. VRLane not only described a realistic 3D laneway environment, but also described the status of the coal mining, with functions of displaying the run states and related parameters of equipment, per-alarming the abnormal mining events, and animating mine cars, mine workers, or long-wall shearers. The system, with advantages of cheap, dynamic, easy to maintenance, provided a useful tool for safety production management in coal mine.

30 CFR 75.215 - Longwall mining systems.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Longwall mining systems. 75.215 Section 75.215... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Roof Support § 75.215 Longwall mining systems. For each... a safe travelway out of the section through the tailgate side of the longwall; and (b) The...

30 CFR 75.215 - Longwall mining systems.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Longwall mining systems. 75.215 Section 75.215... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Roof Support § 75.215 Longwall mining systems. For each... a safe travelway out of the section through the tailgate side of the longwall; and (b) The...

30 CFR 75.215 - Longwall mining systems.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Longwall mining systems. 75.215 Section 75.215... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Roof Support § 75.215 Longwall mining systems. For each... a safe travelway out of the section through the tailgate side of the longwall; and (b) The...

Methane emissions and airflow patterns along longwall faces and through bleeder ventilation systems

PubMed Central

Schatzel, Steven J.; Dougherty, Heather N.

2015-01-01

The National Institute for Occupational Safety and Health (NIOSH) conducted an investigation of longwall face and bleeder ventilation systems using tracer gas experiments and computer network ventilation. The condition of gateroad entries, along with the caved material’s permeability and porosity changes as the longwall face advances, determine the resistance of the airflow pathways within the longwall’s worked-out area of the bleeder system. A series of field evaluations were conducted on a four-panel longwall district. Tracer gas was released at the mouth of the longwall section or on the longwall face and sampled at various locations in the gateroads inby the shield line. Measurements of arrival times and concentrations defined airflow/gas movements for the active/completed panels and the bleeder system, providing real field data to delineate these pathways. Results showed a sustained ability of the bleeder system to ventilate the longwall tailgate corner as the panels retreated. PMID:26925166

30 CFR 75.215 - Longwall mining systems.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Longwall mining systems. 75.215 Section 75.215... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Roof Support § 75.215 Longwall mining systems. For each longwall mining section, the roof control plan shall specify— (a) The methods that will be used to maintain...

30 CFR 75.215 - Longwall mining systems.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Longwall mining systems. 75.215 Section 75.215... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Roof Support § 75.215 Longwall mining systems. For each longwall mining section, the roof control plan shall specify— (a) The methods that will be used to maintain...

Integrated Positioning for Coal Mining Machinery in Enclosed Underground Mine Based on SINS/WSN

PubMed Central

Hui, Jing; Wu, Lei; Yan, Wenxu; Zhou, Lijuan

2014-01-01

To realize dynamic positioning of the shearer, a new method based on SINS/WSN is studied in this paper. Firstly, the shearer movement model is built and running regularity of the shearer in coal mining face has been mastered. Secondly, as external calibration of SINS using GPS is infeasible in enclosed underground mine, WSN positioning strategy is proposed to eliminate accumulative error produced by SINS; then the corresponding coupling model is established. Finally, positioning performance is analyzed by simulation and experiment. Results show that attitude angle and position of the shearer can be real-timely tracked by integrated positioning strategy based on SINS/WSN, and positioning precision meet the demand of actual working condition. PMID:24574891

Automated longwall guidance and control systems, phase 1

NASA Technical Reports Server (NTRS)

Rybak, S. C.

1978-01-01

Candidate vertical control systems (VCS) and face advancement systems (FAS) required to satisfactorily automate the longwall system were analyzed and simulated in order to develop an overall longwall system configuration for preliminary design.

30 CFR 75.384 - Longwall and shortwall travelways.

Code of Federal Regulations, 2011 CFR

2011-07-01

...) Work shall cease on the longwall or shortwall face; (2) Miners shall be withdrawn from face areas to a... longwall or shortwall face after the procedures set out in §§ 75.215 and 75.222 are implemented. ...

30 CFR 75.384 - Longwall and shortwall travelways.

Code of Federal Regulations, 2013 CFR

2013-07-01

...) Work shall cease on the longwall or shortwall face; (2) Miners shall be withdrawn from face areas to a... longwall or shortwall face after the procedures set out in §§ 75.215 and 75.222 are implemented. ...

30 CFR 75.384 - Longwall and shortwall travelways.

Code of Federal Regulations, 2012 CFR

2012-07-01

...) Work shall cease on the longwall or shortwall face; (2) Miners shall be withdrawn from face areas to a... longwall or shortwall face after the procedures set out in §§ 75.215 and 75.222 are implemented. ...

75 FR 25840 - Endangered and Threatened Species; Recovery Plans; Recovery Plan for the Kemp's Ridley Sea Turtle

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-10

...-1401, fax 301-713-0376) or Tom Shearer (ph. 361-994-9005, fax 361-994-8626). SUPPLEMENTARY INFORMATION... Therese Conant or Tom Shearer (see FOR FURTHER INFORMATION CONTACT). Background On March 16, 2010, we...

30 CFR 75.813 - High-voltage longwalls; scope.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false High-voltage longwalls; scope. 75.813 Section 75.813 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground High-Voltage Distribution High-Voltage Longwalls § 75.813 High-voltage...

30 CFR 75.813 - High-voltage longwalls; scope.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false High-voltage longwalls; scope. 75.813 Section 75.813 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground High-Voltage Distribution High-Voltage Longwalls § 75.813 High-voltage...

Use of IT platform in determination of efficiency of mining machines

NASA Astrophysics Data System (ADS)

Brodny, Jarosław; Tutak, Magdalena

2018-01-01

Determination of effective use of mining devices has very significant meaning for mining enterprises. High costs of their purchase and tenancy cause that these enterprises tend to the best use of possessed technical potential. However, specifics of mining production causes that this process not always proceeds without interferences. Practical experiences show that determination of objective measure of utilization of machine in mining enterprise is not simple. In the paper a proposition for solution of this problem is presented. For this purpose an IT platform and overall efficiency model OEE were used. This model enables to evaluate the machine in a range of its availability performance and quality of product, and constitutes a quantitative tool of TPM strategy. Adapted to the specificity of mining branch the OEE model together with acquired data from industrial automatic system enabled to determine the partial indicators and overall efficiency of tested machines. Studies were performed for a set of machines directly use in coal exploitation process. They were: longwall-shearer and armoured face conveyor, and beam stage loader. Obtained results clearly indicate that degree of use of machines by mining enterprises are unsatisfactory. Use of IT platforms will significantly facilitate the process of registration, archiving and analytical processing of the acquired data. In the paper there is presented methodology of determination of partial indices and total OEE together with a practical example of its application for investigated machines set. Also IT platform was characterized for its construction, function and application.

Stress Changes and Deformation Monitoring of Longwall Coal Pillars Located in Weak Ground

NASA Astrophysics Data System (ADS)

Yu, Bin; Zhang, Zhenyu; Kuang, Tiejun; Liu, Jinrong

2016-08-01

Coal pillar stability is strongly influenced by the site-specific geological and geotechnical conditions. Many geological structures such as faults, joints, or rock intrusions can be detrimental to mining operations. In order to evaluate the performance of coal pillars under weak roof degraded by igneous rock intrusion, stress and deformation monitoring was conducted in the affected tailgate areas of Nos. 8208 and 8210 longwalls in Tashan coal mine, Shanxi Province, China. The measurements in the 8208 longwall tailgate showed that the mining-induced stresses in 38-m-wide coal chain pillars under the overburden depth of 300-500 m started to increase at about 100 m ahead of the 8208 longwall working face and reached its peak level at approximately 50 m ahead of the longwall face. The peak stress of 9.16 MPa occurred at the depth of 8-9 m into the pillar from the tailgate side wall. In comparison, disturbance of the headgate block pillar area was negligible, indicating the difference of abutment pressure distribution between the tailgate and headgate sites where the adjacent unmined longwall block carried most of the overburden load. However, when the longwall face passed the headgate monitoring site by 360-379 m, the pillar stress increased to a peak value of 21.4 MPa at the pillar depth of 13 m from the gob side mainly due to stress redistribution in the chain pillar. In contrast to the headgate, at the tailgate side, the adjacent goaf was the dominant triggering factor for high stress concentrations in the chain pillar. Convergence measurements in the tailgate during longwall mining further indicated the evolution characteristics of coal pillar deformation, clearly showing that the gateroad deformation is mainly induced by the longwall extraction it serves. When predicting the future pillar loads from the monitored data, two stress peaks appeared across the 38-m-wide tailgate coal pillar, which are separated by the lower stress area within the pillar center. This 10-m-wide elastic pillar core area indicates that the coal pillar may be narrowed to 30 m to improve coal recovery. The measurements further indicate that, if the headgate of the next panel can be developed after the adjacent gob becomes stable, the coal pillar width may be further reduced to 20 m. This study is applicable for the chain pillar design, the gateroad secondary support design ahead of the longwall mining face, and the gateroad preparation of the next longwall panel under similar geological and geotechnical conditions.

Analysis of Influence of Goaf Sealing from Tailgate On the Methane Concentration at the Outlet from the Longwall

NASA Astrophysics Data System (ADS)

Tutak, Magdalena; Brodny, Jaroslaw

2017-12-01

One of the most common and most dangerous gas hazards in underground coal mine is methane hazard. Formation of dangerous, explosive concentrations of methane occurs the most often in the region of crossing of longwall with the ventilation gallery. Particularly it applies to longwalls ventilated in „U from bounds” system. Outflow of gases from the goaf to the tailgate takes place through the boundary surfaces of this sidewalk with goaf. Main cause of this process is a phenomenon of air filtration through the goaf with caving. This filtration is a result of migration of the part of ventilation air stream supplied to the longwall. This air is released into the goaf on the entire longwall length; however, its greater amount gets to the goaf with caving space at the crossing of maingate with exploitation longwall. Albeit, the biggest outflow of air mixture and gases from the goaf occurs in top gate in upper corner of the longwall. This is a result of pressure difference in this region. This phenomenon causes that to the space of heading besides the air also other gases present in the goaf, mainly methane, are released. Methane is an explosive gas. Most often boundaries of explosive mixtures of methane, air and inert gases are described by the so-called Coward triangle explosion. Within the limits of the occurrence of the concentration of explosive methane explosion initials may be endogenous fire, blasting or sparks arising from friction of moving lumps of rock. Therefore, in order to decrease its concertation in this region, by limiting its outflow from the goaf with caving different actions are taken. One of such action is sealing of goaf from top gate side. Analysis of impact of sealing of these goaf on the methane concentration at the outlet of longwall is main aim of studies researches. Model of tested region, together with boundary conditions (including parameters of flowing air and the methane content) was developed on the base of real data from one of the exploitation longwalls. In the studies it was assumed that measurement of sealing of goaf (their isolation) will be permeability coefficient of sealing layer. Based on this impact of this coefficient value on methane concertation at outlet from the longwall was determined. As a result of performed analysis also other physical parameters of air stream flowing through the tested region were determined, also dependent on the degree of sealing of goaf. Simulation tests were carried out with use of finite volume method. Obtained results clearly indicate, that by a proper selection of degree of sealing of goaf with caving, one can have significant influence on the air stream parameters in the region of upper corner of longwall.

Maximising Longwall performance and profitability by the introduction of moving car bunker systems into outbye haulage layouts

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barlow, P.M.

1996-12-31

In order to maximize the profitability of Longwall mining operations, outbye materials handling systems should be cost effectively engineered to both fully harmonize with cyclical surges in output and to maintain high levels of availability. With the introduction of new Longwall systems into existing mines, the upgrading of outbye haulage to handle peak production from the Longwall panel can prove to be extremely expensive and is often unnecessary. In addition, despite high levels of investment in new equipment, many mines are still failing to achieve planned gains in Longwall productivity due to persistent downtime on outbye haulage routes. This papermore » details the planning, production and engineering considerations necessary to maximize profitability by the introduction of moving car bunker systems to underground haulage layouts. It also examines case studies of recent installations within the North American coal mining industry and charts the significant success being achieved in improving profitability at these mines.« less

Tube bundle system studies at Signal Peak Energy Bull Mountains #1 Mine

PubMed Central

Zipf, R.K.; Ochsner, R.; Krog, R.; Marchewka, W.; Valente, M.; Jensen, R.

2015-01-01

A tube bundle system (TBS) is a mechanical system for continuously drawing gas samples through tubes from multiple monitoring points located in an underground coal mine for analysis and display on the surface. The U.S. National Institute for Occupational Safety and Health (NIOSH), in collaboration with Signal Peak Energy (SPE), LLC, Bull Mountains No. 1 Mine, operated a TBS during mining of two bleederless, longwall panels. This paper describes the gas analysis data and its interpretation. As verified by the TBS, coal at the SPE mine tends to oxidize slowly. It was known that a reservoir of low-oxygen concentration atmosphere developed about 610 m (2,000 ft) behind the longwall face. A bleederless ventilation system facilitates formation of an inert atmosphere in this longwall gob and decreases the likelihood of spontaneous combustion. Connections of the mine atmosphere to the surface through subsidence cracks could allow airflow into the longwall gob, revive coal oxidation and increase spontaneous combustion risk. The atmospheric composition of the sealed areas was homogeneous, except in the immediate vicinity of suspected ingassing points. The TBS verified that gases within the partially sealed, bleederless longwall gob expanded into the longwall tailgate area when barometric pressure decreased. The concentration of carbon dioxide in the back return airflow at the longwall tailgate was observed to increase by a factor of three and possibly up to 10 times the typical background concentration of 0.5 to 1.0%, depending on the size of the longwall gob and the magnitude of barometric pressure decrease. TBS have the inherent disadvantage of slow response time due to travel time of the gas samples and sequential gas analyses. A TBS or similar continuous monitoring system could be beneficial in detecting and providing warning of potentially hazardous gas concentrations, if the slow response time of the system is always understood. PMID:26306075

Tube bundle system studies at Signal Peak Energy Bull Mountains #1 Mine.

PubMed

Zipf, R K; Ochsner, R; Krog, R; Marchewka, W; Valente, M; Jensen, R

2014-03-01

A tube bundle system (TBS) is a mechanical system for continuously drawing gas samples through tubes from multiple monitoring points located in an underground coal mine for analysis and display on the surface. The U.S. National Institute for Occupational Safety and Health (NIOSH), in collaboration with Signal Peak Energy (SPE), LLC, Bull Mountains No. 1 Mine, operated a TBS during mining of two bleederless, longwall panels. This paper describes the gas analysis data and its interpretation. As verified by the TBS, coal at the SPE mine tends to oxidize slowly. It was known that a reservoir of low-oxygen concentration atmosphere developed about 610 m (2,000 ft) behind the longwall face. A bleederless ventilation system facilitates formation of an inert atmosphere in this longwall gob and decreases the likelihood of spontaneous combustion. Connections of the mine atmosphere to the surface through subsidence cracks could allow airflow into the longwall gob, revive coal oxidation and increase spontaneous combustion risk. The atmospheric composition of the sealed areas was homogeneous, except in the immediate vicinity of suspected ingassing points. The TBS verified that gases within the partially sealed, bleederless longwall gob expanded into the longwall tailgate area when barometric pressure decreased. The concentration of carbon dioxide in the back return airflow at the longwall tailgate was observed to increase by a factor of three and possibly up to 10 times the typical background concentration of 0.5 to 1.0%, depending on the size of the longwall gob and the magnitude of barometric pressure decrease. TBS have the inherent disadvantage of slow response time due to travel time of the gas samples and sequential gas analyses. A TBS or similar continuous monitoring system could be beneficial in detecting and providing warning of potentially hazardous gas concentrations, if the slow response time of the system is always understood.

An Experimental Study of Cutting Performances of Worn Picks

NASA Astrophysics Data System (ADS)

Dogruoz, Cihan; Bolukbasi, Naci; Rostami, Jamal; Acar, Cemil

2016-01-01

The best means to assess rock cuttability and efficiency of cutting process for using mechanical excavation is specific energy (SE), measured in full-scale rock cutting test. This is especially true for the application of roadheaders, often fitted with drag-type cutting tools. Radial picks or drag bits are changed during the operation as they reach a certain amount of wear and become blunt. In this study, full-scale cutting tests in different sedimentary rock types with bits having various degree of wear were used to evaluate the influence of bit wear on cutting forces and specific energy. The relationship between the amount of wear as represented by the size of the wear flats at the tip of the bit, and cutting forces as well as specific energy was examined. The influence of various rock properties such as mineral content, uniaxial compressive strength, tensile strength, indentation index, shore hardness, Schmidt hammer hardness, and density with required SE of cutting using different levels of tool wear was also studied. The preliminary analysis of the data shows that the mean cutting forces increase 2-3 times and SE by 4-5 times when cutting with 4 mm wear flat as compared to cutting with new or sharp wedge shape bits. The grain size distribution of the muck for cutting different rock types and different level of bit wear was analyzed and discussed. The best fit prediction models for SE based on statistical analysis of laboratory test results are introduced. The model can be used for estimating the performance of mechanical excavators using radial tools, especially roadheaders, continuous miners and longwall drum shearers.

Numerical Simulation of Aerogasdynamics Processes in A Longwall Panel for Estimation of Spontaneous Combustion Hazards

NASA Astrophysics Data System (ADS)

Meshkov, Sergey; Sidorenko, Andrey

2017-11-01

The relevance of a solution of the problem of endogenous fire safety in seams liable to self-ignition is shown. The possibilities of numerical methods of researches of gasdynamic processes are considered. The analysis of methodical approaches with the purpose to create models and carry out numerical researches of aerogasdynamic processes in longwall panels of gas mines is made. Parameters of the gob for longwall mining are considered. The significant influence of geological and mining conditions of conducting mining operations on distribution of air streams on longwall panels and effective management of gas emission is shown. The aerogasdynamic model of longwall panels for further research of influence of parameters of ventilation and properties of gob is presented. The results of numerical researches including distribution of air streams, fields of concentration of methane and oxygen at application of various schemes of airing for conditions of perspective mines of the Pechora basin and Kuzbass are given. Recommendations for increase of efficiency of the coal seams mining liable to selfignition are made. The directions of further researches are defined.

Development of mining guidance and control systems

NASA Technical Reports Server (NTRS)

1979-01-01

New fundamental interface sensor concepts were identified and investigated including tabulation of the physical and performance characteristics of two new interface detector concepts: - natural background radiation and magnetic spin resonance. Studies of guidance and control techniques for the longwall miner identified three basic systems for use in automated/remote controlled longwall mining. The following projects were initiated: system study which will more completely define the longwall guidance and control system design concepts; integration of the various control functions (vertical, yaw, and roll); and hardware technical requirements.

Prediction of power requirements for a longwall armored face conveyor

DOE Office of Scientific and Technical Information (OSTI.GOV)

Broadfoot, A.R.; Betz, R.E.

1995-12-31

Longwall armored face conveyors (AFC`s) have traditionally been designed using a combination of heuristics and simple models. However, as longwalls increase in length these design procedures are proving to be inadequate. The result has either been costly loss of production due to AFC stalling or component failure, or larger than necessary capital investment due to overdesign. In order to allow accurate estimation of the power requirements for an AFC this paper develops a comprehensive model of all the friction forces associated with the AFC. Power requirement predictions obtained from these models are then compared with measurements from two mine faces.

Identification of Shearer Cutting Patterns Using Vibration Signals Based on a Least Squares Support Vector Machine with an Improved Fruit Fly Optimization Algorithm

PubMed Central

Si, Lei; Wang, Zhongbin; Liu, Xinhua; Tan, Chao; Liu, Ze; Xu, Jing

2016-01-01

Shearers play an important role in fully mechanized coal mining face and accurately identifying their cutting pattern is very helpful for improving the automation level of shearers and ensuring the safety of coal mining. The least squares support vector machine (LSSVM) has been proven to offer strong potential in prediction and classification issues, particularly by employing an appropriate meta-heuristic algorithm to determine the values of its two parameters. However, these meta-heuristic algorithms have the drawbacks of being hard to understand and reaching the global optimal solution slowly. In this paper, an improved fly optimization algorithm (IFOA) to optimize the parameters of LSSVM was presented and the LSSVM coupled with IFOA (IFOA-LSSVM) was used to identify the shearer cutting pattern. The vibration acceleration signals of five cutting patterns were collected and the special state features were extracted based on the ensemble empirical mode decomposition (EEMD) and the kernel function. Some examples on the IFOA-LSSVM model were further presented and the results were compared with LSSVM, PSO-LSSVM, GA-LSSVM and FOA-LSSVM models in detail. The comparison results indicate that the proposed approach was feasible, efficient and outperformed the others. Finally, an industrial application example at the coal mining face was demonstrated to specify the effect of the proposed system. PMID:26771615

Prediction of power requirements for a longwall armored face conveyor

DOE Office of Scientific and Technical Information (OSTI.GOV)

Broadfoot, A.R.; Betz, R.E.

1997-01-01

Longwall armored face conveyors (AFC`s) have traditionally been designed using a combination of heuristics and simple models. However, as longwalls increase in length, these design procedures are proving to be inadequate. The result has either been a costly loss of production due to AFC stalling or component failure, or larger than necessary capital investment due to overdesign. In order to allow accurate estimation of the power requirements for an AFC, this paper develops a comprehensive model of all the friction forces associated with the AFC. Power requirement predictions obtained from these models are then compared with measurements from two minemore » faces.« less

30 CFR 75.821 - Testing, examination and maintenance.

Code of Federal Regulations, 2010 CFR

2010-07-01

... SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground High-Voltage Distribution High-Voltage Longwalls § 75.821 Testing, examination and maintenance. (a) At least once every 7 days, a... must test and examine each unit of high-voltage longwall equipment and circuits to determine that...

30 CFR 75.817 - Cable handling and support systems.

Code of Federal Regulations, 2010 CFR

2010-07-01

... SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground High-Voltage Distribution High-Voltage Longwalls § 75.817 Cable handling and support systems. Longwall mining equipment must be... the possibility of miners contacting the cables and to protect the high-voltage cables from damage. ...

30 CFR 18.53 - High-voltage longwall mining systems.

Code of Federal Regulations, 2012 CFR

2012-07-01

... and Design Requirements § 18.53 High-voltage longwall mining systems. (a) In each high-voltage motor...-interrupting devices must be designed and installed to prevent automatic reclosure. (d) Transformers with high... “open” position; (iv) When located in an explosion-proof enclosure, the device must be designed and...

30 CFR 18.53 - High-voltage longwall mining systems.

Code of Federal Regulations, 2010 CFR

2010-07-01

... and Design Requirements § 18.53 High-voltage longwall mining systems. (a) In each high-voltage motor...-interrupting devices must be designed and installed to prevent automatic reclosure. (d) Transformers with high... “open” position; (iv) When located in an explosion-proof enclosure, the device must be designed and...

30 CFR 18.53 - High-voltage longwall mining systems.

Code of Federal Regulations, 2014 CFR

2014-07-01

... and Design Requirements § 18.53 High-voltage longwall mining systems. (a) In each high-voltage motor...-interrupting devices must be designed and installed to prevent automatic reclosure. (d) Transformers with high... “open” position; (iv) When located in an explosion-proof enclosure, the device must be designed and...

30 CFR 18.53 - High-voltage longwall mining systems.

Code of Federal Regulations, 2013 CFR

2013-07-01

... and Design Requirements § 18.53 High-voltage longwall mining systems. (a) In each high-voltage motor...-interrupting devices must be designed and installed to prevent automatic reclosure. (d) Transformers with high... “open” position; (iv) When located in an explosion-proof enclosure, the device must be designed and...

30 CFR 18.53 - High-voltage longwall mining systems.

Code of Federal Regulations, 2011 CFR

2011-07-01

... and Design Requirements § 18.53 High-voltage longwall mining systems. (a) In each high-voltage motor...-interrupting devices must be designed and installed to prevent automatic reclosure. (d) Transformers with high... “open” position; (iv) When located in an explosion-proof enclosure, the device must be designed and...

78 FR 64933 - Texas Eastern Transmission, LP; Notice of Application

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-30

... and necessity to construct its Emerald Longwall Mine Panel D1 Project. Texas Eastern states in its application that, due to anticipated longwall mining activities of Emerald Coal Resources, LP (Emerald) in Greene County, Pennsylvania in Panel D1 of Emerald's mine, ground subsidence may occur. In order to...

76 FR 29795 - Agency Information Collection Activities; Submission for OMB Review; Comment Request...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-23

..., Testing, and Maintenance of High Voltage Longwalls,'' to the Office of Management and Budget (OMB) for... Examinations, Testing, and Maintenance of High Voltage Longwalls ACTION: Notice. SUMMARY: The Department of... Safety and Health Administration (MSHA), Office of Management and Budget, Room 10235, Washington, DC...

Ground control failures. A pictorial view of case studies

DOE Office of Scientific and Technical Information (OSTI.GOV)

Peng, S.S.

2007-07-01

The book shows, in pictorial views, many forms and/or stages of types of failures in mines, for instance, cutter, roof falls, and cribs. In each case, the year of occurrence is stated in the beginning so that the environment or technological background under which it occurred are reflected. The narrative than begins with the mining and geological conditions, followed by a description of the ground control problems and recommended solutions and results, if any. The sections cover failure of pillars, roof falls, longwall, roof bolting, multiple-seam mining, floor heave, longwall, flooding and weathering of coal, old workings, and shortwall andmore » thin-seam plow longwall.« less

Modified longwall mining with a German coal planer. Progress report 2. Completion of mining in three adjacent panels in Pocahontas No. 4 bed, Helen, West Virginia

DOE Office of Scientific and Technical Information (OSTI.GOV)

Haley, W.A.; Quenon, H.A.

1954-01-01

The progress of mechanical longwall coal mining in the United States is described in which a German coal planer was employed. Operating data of planer mining in three panels at the mine are summarized.

Field test of an alternative longwall gate road design

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cox, R.M.; Vandergrift, T.L.; McDonnell, J.P.

1994-01-01

The US Bureau of Mines (USBM) MULSIM/ML modeling technique has been used to analyze anticipated stress distributions for a proposed alternative longwall gate road design for a western Colorado coal mine. The model analyses indicated that the alternative gate road design would reduce stresses in the headgate entry. To test the validity of the alternative gate road design under actual mining conditions, a test section of the alternative system was incorporated into a subsequent set of gate roads developed at the mine. The alternative gate road test section was instrumented with borehole pressure cells, as part of an ongoing USBMmore » research project to monitor ground pressure changes as longwall mining progressed. During the excavation of the adjacent longwall panels, the behavior of the alternative gate road system was monitored continuously using the USBM computer-assisted Ground Control Management System. During these field tests, the alternative gate road system was first monitored and evaluated as a headgate, and later monitored and evaluated as a tailgate. The results of the field tests confirmed the validity of using the MULSIM/NL modeling technique to evaluate mine designs.« less

78 FR 66911 - Texas Eastern Transmission, LP; Notice of Intent To Prepare an Environmental Assessment for the...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-11-07

... mining of coal. The Commission will use this EA in its decision-making process to determine whether the... work to be performed for the planned longwall coal mining activities of Emerald Coal Resources, LP... pipeline facilities at their certificated design capacities during the planned longwall mining activities...

Control problems in armored face conveyors for longwall mines

DOE Office of Scientific and Technical Information (OSTI.GOV)

Broadfoot, A.R.; Betz, R.E.

1998-03-01

This paper is a tutorial discussion of the current difficulties being experienced with the performance of armored face conveyor (AFC) drive systems, as used in longwall mining. It presents the traditional approaches to the design of the drive system and highlights the inadequacies. The final part of the paper presents a possible solution approach using variable-speed drive systems, emphasizing the advantages of this approach. The paper is significant, in that it discusses, in one document, a number of problems related to the operation of longwall AFC`s. Furthermore, it presents a solution path for these problems. The details of the controlmore » strategies to solve the problems highlighted are left to a companion paper.« less

Baseline studies on the feasibility of detecting a coal/shale interface with a self-powered sensitized pick

NASA Technical Reports Server (NTRS)

Anderson, G. R., II

1981-01-01

The feasibility of utilizing a sensitized pick to discriminate between cutting coal and roof material during the longwall mining process was investigated. A conventional longwall mining pick was instrumented and cutting force magnitudes were determined for a variety of materials, including Illinois #6 coal, shale type materials, and synthetic coal/shale materials.

Method of gas emission control for safe working of flat gassy coal seams

NASA Astrophysics Data System (ADS)

Vinogradov, E. A.; Yaroshenko, V. V.; Kislicyn, M. S.

2017-10-01

The main problems at intensive flat gassy coal seam longwall mining are considered. For example, mine Kotinskaja JSC “SUEK-Kuzbass” shows that when conducting the work on the gassy coal seams, methane emission control by means of ventilation, degassing and insulated drain of methane-air mixture is not effective and stable enough. It is not always possible to remove the coal production restrictions by the gas factor, which leads to financial losses because of incomplete using of longwall equipment and the reduction of the technical and economic indicators of mining. To solve the problems, the authors used a complex method that includes the compilation and analysis of the theory and practice of intensive flat gassy coal seam longwall mining. Based on the results of field and numerical researches, the effect of parameters of technological schemes on efficiency of methane emission control on longwall panels, the non-linear dependence of the permissible according to gas factor longwall productivity on parameters of technological schemes, ventilation and degassing during intensive mining flat gassy coal seams was established. The number of recommendations on the choice of the location and the size of the intermediate section of coal heading to control gassing in the mining extracted area, and guidelines for choosing the parameters of ventilation of extracted area with the help of two air supply entries and removal of isolated methane-air mixture are presented in the paper. The technological scheme, using intermediate entry for fresh air intake, ensuring effective management gassing and allowing one to refuse from drilling wells from the surface to the mined-out space for mining gas-bearing coal seams, was developed.

Risk Analysis and Prediction of Floor Failure Mechanisms at Longwall Face in Parvadeh-I Coal Mine using Rock Engineering System (RES)

NASA Astrophysics Data System (ADS)

Aghababaei, Sajjad; Saeedi, Gholamreza; Jalalifar, Hossein

2016-05-01

The floor failure at longwall face decreases productivity and safety, increases operation costs, and causes other serious problems. In Parvadeh-I coal mine, the timber is used to prevent the puncture of powered support base into the floor. In this paper, a rock engineering system (RES)-based model is presented to evaluate the risk of floor failure mechanisms at the longwall face of E 2 and W 1 panels. The presented model is used to determine the most probable floor failure mechanism, effective factors, damaged regions and remedial actions. From the analyzed results, it is found that soft floor failure is dominant in the floor failure mechanism at Parvadeh-I coal mine. The average of vulnerability index (VI) for soft, buckling and compressive floor failure mechanisms was estimated equal to 52, 43 and 30 for both panels, respectively. By determining the critical VI for soft floor failure mechanism equal to 54, the percentage of regions with VIs beyond the critical VI in E 2 and W 1 panels is equal to 65.5 and 30, respectively. The percentage of damaged regions showed that the excess amount of used timber to prevent the puncture of weak floor below the powered support base is equal to 4,180,739 kg. RES outputs and analyzed results showed that setting and yielding load of powered supports, length of face, existent water at face, geometry of powered supports, changing the cutting pattern at longwall face and limiting the panels to damaged regions with supercritical VIs could be considered to control the soft floor failure in this mine. The results of this research could be used as a useful tool to identify the damaged regions prior to mining operation at longwall panel for the same conditions.

Longwall mining installation having stable-hole plough

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hauschopp, A.

1981-07-21

A longwall mineral mining installation has a longwall conveyor, a plough guide attached to the face-side of the conveyor, and a main plough movable to and fro along the guide. A respective stable-hole plough is movable to and fro along portions of the plough guide adjacent to each end of the conveyor. Each stablehole plough is driven by means of a respective endless drive chain which passes round two end sprockets. One end sprocket of each stable-hole plough is positioned at the face-side of the conveyor part way therealong. The other end sprocket of each stable-hole plough is positioned atmore » the adjacent end of the conveyor on the goaf-side thereof. Each drive chain passes round a direction-changing unit positioned at the adjacent end of the conveyor.« less

A Cutting Pattern Recognition Method for Shearers Based on Improved Ensemble Empirical Mode Decomposition and a Probabilistic Neural Network

PubMed Central

Xu, Jing; Wang, Zhongbin; Tan, Chao; Si, Lei; Liu, Xinhua

2015-01-01

In order to guarantee the stable operation of shearers and promote construction of an automatic coal mining working face, an online cutting pattern recognition method with high accuracy and speed based on Improved Ensemble Empirical Mode Decomposition (IEEMD) and Probabilistic Neural Network (PNN) is proposed. An industrial microphone is installed on the shearer and the cutting sound is collected as the recognition criterion to overcome the disadvantages of giant size, contact measurement and low identification rate of traditional detectors. To avoid end-point effects and get rid of undesirable intrinsic mode function (IMF) components in the initial signal, IEEMD is conducted on the sound. The end-point continuation based on the practical storage data is performed first to overcome the end-point effect. Next the average correlation coefficient, which is calculated by the correlation of the first IMF with others, is introduced to select essential IMFs. Then the energy and standard deviation of the reminder IMFs are extracted as features and PNN is applied to classify the cutting patterns. Finally, a simulation example, with an accuracy of 92.67%, and an industrial application prove the efficiency and correctness of the proposed method. PMID:26528985

Are the Stress Drops of Small Earthquakes Good Predictors of the Stress Drops of Larger Earthquakes?

NASA Astrophysics Data System (ADS)

Hardebeck, J.

2017-12-01

Uncertainty in PSHA could be reduced through better estimates of stress drop for possible future large earthquakes. Studies of small earthquakes find spatial variability in stress drop; if large earthquakes have similar spatial patterns, their stress drops may be better predicted using the stress drops of small local events. This regionalization implies the variance with respect to the local mean stress drop may be smaller than the variance with respect to the global mean. I test this idea using the Shearer et al. (2006) stress drop catalog for M1.5-3.1 events in southern California. I apply quality control (Hauksson, 2015) and remove near-field aftershocks (Wooddell & Abrahamson, 2014). The standard deviation of the distribution of the log10 stress drop is reduced from 0.45 (factor of 3) to 0.31 (factor of 2) by normalizing each event's stress drop by the local mean. I explore whether a similar variance reduction is possible when using the Shearer catalog to predict stress drops of larger southern California events. For catalogs of moderate-sized events (e.g. Kanamori, 1993; Mayeda & Walter, 1996; Boyd, 2017), normalizing by the Shearer catalog's local mean stress drop does not reduce the standard deviation compared to the unmodified stress drops. I compile stress drops of larger events from the literature, and identify 15 M5.5-7.5 earthquakes with at least three estimates. Because of the wide range of stress drop estimates for each event, and the different techniques and assumptions, it is difficult to assign a single stress drop value to each event. Instead, I compare the distributions of stress drop estimates for pairs of events, and test whether the means of the distributions are statistically significantly different. The events divide into 3 categories: low, medium, and high stress drop, with significant differences in mean stress drop between events in the low and the high stress drop categories. I test whether the spatial patterns of the Shearer catalog stress drops can predict the categories of the 15 events. I find that they cannot, rather the large event stress drops are uncorrelated with the local mean stress drop from the Shearer catalog. These results imply that the regionalization of stress drops of small events does not extend to the larger events, at least with current standard techniques of stress drop estimation.

Open-air sprays for capturing and controlling airborne float coal dust on longwall faces

PubMed Central

Beck, T.W.; Seaman, C.E.; Shahan, M.R.; Mischler, S.E.

2018-01-01

Float dust deposits in coal mine return airways pose a risk in the event of a methane ignition. Controlling airborne dust prior to deposition in the return would make current rock dusting practices more effective and reduce the risk of coal-dust-fueled explosions. The goal of this U.S. National Institute for Occupational Safety and Health study is to determine the potential of open-air water sprays to reduce concentrations of airborne float coal dust, smaller than 75 µm in diameter, in longwall face airstreams. This study evaluated unconfined water sprays in a featureless tunnel ventilated at a typical longwall face velocity of 3.6 m/s (700 fpm). Experiments were conducted for two nozzle orientations and two water pressures for hollow cone, full cone, flat fan, air atomizing and hydraulic atomizing spray nozzles. Gravimetric samples show that airborne float dust removal efficiencies averaged 19.6 percent for all sprays under all conditions. The results indicate that the preferred spray nozzle should be operated at high fluid pressures to produce smaller droplets and move more air. These findings agree with past respirable dust control research, providing guidance on spray selection and spray array design in ongoing efforts to control airborne float dust over the entire longwall ventilated opening. PMID:29348700

Open-air sprays for capturing and controlling airborne float coal dust on longwall faces.

PubMed

Beck, T W; Seaman, C E; Shahan, M R; Mischler, S E

2018-01-01

Float dust deposits in coal mine return airways pose a risk in the event of a methane ignition. Controlling airborne dust prior to deposition in the return would make current rock dusting practices more effective and reduce the risk of coal-dust-fueled explosions. The goal of this U.S. National Institute for Occupational Safety and Health study is to determine the potential of open-air water sprays to reduce concentrations of airborne float coal dust, smaller than 75 µm in diameter, in longwall face airstreams. This study evaluated unconfined water sprays in a featureless tunnel ventilated at a typical longwall face velocity of 3.6 m/s (700 fpm). Experiments were conducted for two nozzle orientations and two water pressures for hollow cone, full cone, flat fan, air atomizing and hydraulic atomizing spray nozzles. Gravimetric samples show that airborne float dust removal efficiencies averaged 19.6 percent for all sprays under all conditions. The results indicate that the preferred spray nozzle should be operated at high fluid pressures to produce smaller droplets and move more air. These findings agree with past respirable dust control research, providing guidance on spray selection and spray array design in ongoing efforts to control airborne float dust over the entire longwall ventilated opening.

Numerical modeling analysis of stress transfer modification concepts for deep longwall mines. Report of investigations/1995

DOE Office of Scientific and Technical Information (OSTI.GOV)

Vandergrift, T.L.; Jude, C.V.

1995-12-31

This U.S. Bureau of Mines (USBM) report evaluates three stress-transfer-modification concepts for their potential in reducing longwall gate road stresses and closures. In each of the three concepts--packwalling, gob infilling, and entry filling--support structures are constructed on the headgate side of the panel parallel with or inby the face line. When the headgate becomes the tailgate of the adjacent panel, these structures are in place to accept stresses transferred from the mined-out panel. Using the USBM nonlinear boundary-element program MULSIM/NL, baseline models of typical longwall stress transfer behavior were developed for both intermediate depth and deep mining conditions. These modelsmore » were verified by comparing model results with field measurements and observations. The stress-transfer-modification concepts were then incorporated into the deep baseline model to quantify the effects of each concept on tailgate closure.« less

Personaltiy correlates of the joy of life.

PubMed

Tolor, A

1978-07-01

Hypothesized that greater diversity of joy and more intense levels of joy would be associated with low hopelessness, high sensation seeking the perception of the world as just, and high sensitization as compared with high repression. It also was predicted that female Ss would score higher in sources of joy and in intensity as compared to males. One hundred and thirty-four college students were administered the Joy of Life Scale, Hopelessness Scale, Sensation Seeking Scale, Just World Scale, and Revised Repression-Sensitization Scale. The hypothesis was supported for sensation seeking in that High Sensation Seekers assigned significantly (p less than .05) higher mean intensity ratings to experiences that produced joy of life, than did Low Sensation Seekers. Contrary to expectation, there was a nonsignificant trend for sensitizers, when compared with repressors, to select fewer joy-related experiences and to evaluate these experiences as less joyful. The experiences that most often led to high levels of joy were those referrable to positive emotional events.

Coal Mining Induced Seismicity in the Ruhr Area, Germany

NASA Astrophysics Data System (ADS)

Bischoff, Monika; Cete, Alpan; Fritschen, Ralf; Meier, Thomas

2010-02-01

Over the last 25 years mining-induced seismicity in the Ruhr area has continuously been monitored by the Ruhr-University Bochum. About 1,000 seismic events with local magnitudes between 0.7 ≤ M L ≤ 3.3 are located every year. For example, 1,336 events were located in 2006. General characteristics of induced seismicity in the entire Ruhr area are spatial and temporal correlation with mining activity and a nearly constant energy release per unit time. This suggests that induced stresses are released rapidly by many small events. The magnitude-frequency distribution follows a Gutenberg-Richter relation which is a result from combining distributions of single longwalls that themselves show large variability. A high b-value of about 2 was found indicating a lack of large magnitude events. Local analyses of single longwalls indicate that various factors such as local geology and mine layout lead to significant differences in seismicity. Stress redistribution acts very locally since differences on a small scale of some hundreds of meters are observed. A regional relation between seismic moment M 0 and local magnitude M L was derived. The magnitude-frequency distribution of a single longwall in Hamm was studied in detail and shows a maximum at M L = 1.4 corresponding to an estimated characteristic source area of about 2,200 m2. Sandstone layers in the hanging or foot wall of the active longwall might fail in these characteristic events. Source mechanisms can mostly be explained by shear failure of two different types above and below the longwall. Fault plane solutions of typical events are consistent with steeply dipping fracture planes parallel to the longwall face and nearly vertical dislocation in direction towards the goaf. We also derive an empirical relation for the decay of ground velocity with epicenter distance and compare maximum observed ground velocity to local magnitude. This is of considerable public interest because about 30 events larger than M L ≥ 1.2 are felt each month by people living in the mining regions. Our relations, for example, indicate that an event in Hamm with a peak ground velocity of 6 mm/s which corresponds to a local magnitude M L between 1.7 and 2.3 is likely to be felt within about 2.3 km radius from the event.

Third symposium on underground mining

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1977-01-01

The Third Symposium on Underground Mining was held at the Kentucky Fair and Exposition Center, Louisville, KY, October 18--20, 1977. Thirty-one papers have been entered individually into EDB and ERA. The topics covered include mining system (longwall, shortwall, room and pillar, etc.), mining equipment (continuous miners, longwall equipment, supports, roof bolters, shaft excavation equipment, monitoring and control systems. Maintenance and rebuilding facilities, lighting systems, etc.), ventilation, noise abatement, economics, accidents (cost), dust control and on-line computer systems. (LTN)

Experimental study on foam coverage on simulated longwall roof.

PubMed

Reed, W R; Zheng, Y; Klima, S; Shahan, M R; Beck, T W

2017-01-01

Testing was conducted to determine the ability of foam to maintain roof coverage in a simulated longwall mining environment. Approximately 27 percent of respirable coal mine dust can be attributed to longwall shield movement, and developing controls for this dust source has been difficult. The application of foam is a possible dust control method for this source. Laboratory testing of two foam agents was conducted to determine the ability of the foam to adhere to a simulated longwall face roof surface. Two different foam generation methods were used: compressed air and blower air. Using a new imaging technology, image processing and analysis utilizing ImageJ software produced quantifiable results of foam roof coverage. For compressed air foam in 3.3 m/s (650 fpm) ventilation, 98 percent of agent A was intact while 95 percent of agent B was intact on the roof at three minutes after application. At 30 minutes after application, 94 percent of agent A was intact while only 20 percent of agent B remained. For blower air in 3.3 m/s (650 fpm) ventilation, the results were dependent upon nozzle type. Three different nozzles were tested. At 30 min after application, 74 to 92 percent of foam agent A remained, while 3 to 50 percent of foam agent B remained. Compressed air foam seems to remain intact for longer durations and is easier to apply than blower air foam. However, more water drained from the foam when using compressed air foam, which demonstrates that blower air foam retains more water at the roof surface. Agent A seemed to be the better performer as far as roof application is concerned. This testing demonstrates that roof application of foam is feasible and is able to withstand a typical face ventilation velocity, establishing this technique's potential for longwall shield dust control.

Experimental study on foam coverage on simulated longwall roof

PubMed Central

Reed, W.R.; Zheng, Y.; Klima, S.; Shahan, M.R.; Beck, T.W.

2018-01-01

Testing was conducted to determine the ability of foam to maintain roof coverage in a simulated longwall mining environment. Approximately 27 percent of respirable coal mine dust can be attributed to longwall shield movement, and developing controls for this dust source has been difficult. The application of foam is a possible dust control method for this source. Laboratory testing of two foam agents was conducted to determine the ability of the foam to adhere to a simulated longwall face roof surface. Two different foam generation methods were used: compressed air and blower air. Using a new imaging technology, image processing and analysis utilizing ImageJ software produced quantifiable results of foam roof coverage. For compressed air foam in 3.3 m/s (650 fpm) ventilation, 98 percent of agent A was intact while 95 percent of agent B was intact on the roof at three minutes after application. At 30 minutes after application, 94 percent of agent A was intact while only 20 percent of agent B remained. For blower air in 3.3 m/s (650 fpm) ventilation, the results were dependent upon nozzle type. Three different nozzles were tested. At 30 min after application, 74 to 92 percent of foam agent A remained, while 3 to 50 percent of foam agent B remained. Compressed air foam seems to remain intact for longer durations and is easier to apply than blower air foam. However, more water drained from the foam when using compressed air foam, which demonstrates that blower air foam retains more water at the roof surface. Agent A seemed to be the better performer as far as roof application is concerned. This testing demonstrates that roof application of foam is feasible and is able to withstand a typical face ventilation velocity, establishing this technique’s potential for longwall shield dust control. PMID:29563765

Analysis of gob gas venthole production performances for strata gas control in longwall mining.

PubMed

Karacan, C Özgen

2015-10-01

Longwall mining of coal seams affects a large area of overburden by deforming it and creating stress-relief fractures, as well as bedding plane separations, as the mining face progresses. Stress-relief fractures and bedding plane separations are recognized as major pathways for gas migration from gas-bearing strata into sealed and active areas of the mines. In order for strata gas not to enter and inundate the ventilation system of a mine, gob gas ventholes (GGVs) can be used as a methane control measure. The aim of this paper is to analyze production performances of GGVs drilled over a longwall panel. These boreholes were drilled to control methane emissions from the Pratt group of coals due to stress-relief fracturing and bedding plane separations into a longwall mine operating in the Mary Lee/Blue Creek coal seam of the Upper Pottsville Formation in the Black Warrior Basin, Alabama. During the course of the study, Pratt coal's reservoir properties were integrated with production data of the GGVs. These data were analyzed by using material balance techniques to estimate radius of influence of GGVs, gas-in-place and coal pressures, as well as their variations during mining. The results show that the GGVs drilled to extract gas from the stress-relief zone of the Pratt coal interval is highly effective in removing gas from the Upper Pottsville Formation. The radii of influence of the GGVs were in the order of 330-380 m, exceeding the widths of the panels, due to bedding plane separations and stress relieved by fracturing. Material balance analyses indicated that the initial pressure of the Pratt coals, which was around 648 KPa when longwall mining started, decreased to approximately 150 KPa as the result of strata fracturing and production of released gas. Approximately 70% of the initial gas-in-place within the area of influence of the GGVs was captured during a period of one year.

A Predictive Model of Daily Seismic Activity Induced by Mining, Developed with Data Mining Methods

NASA Astrophysics Data System (ADS)

Jakubowski, Jacek

2014-12-01

The article presents the development and evaluation of a predictive classification model of daily seismic energy emissions induced by longwall mining in sector XVI of the Piast coal mine in Poland. The model uses data on tremor energy, basic characteristics of the longwall face and mined output in this sector over the period from July 1987 to March 2011. The predicted binary variable is the occurrence of a daily sum of tremor seismic energies in a longwall that is greater than or equal to the threshold value of 105 J. Three data mining analytical methods were applied: logistic regression,neural networks, and stochastic gradient boosted trees. The boosted trees model was chosen as the best for the purposes of the prediction. The validation sample results showed its good predictive capability, taking the complex nature of the phenomenon into account. This may indicate the applied model's suitability for a sequential, short-term prediction of mining induced seismic activity.

Longwall gate road stability in a steeply pitching thick coal seam with a weak roof. Report of investigations/1995

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barron, L.R.; DeMarco, M.J.

1995-12-31

The U.S. Bureau of Mines conducted a ground pressure analysis of a wide abutment-type chain pillar in a two-entry gate road of a Western U.S. coal mine with an extremely weak immediate roof. This report discusses gate road layout and performance and secondary support effectiveness. The results of the pillar pressure study are compared to pillar loading predicted by a widely used pillar design method and to similar studies in other mines. A stability evaluation of the most recent longwall headgate, using the USBM Analysis of Longwall Pillar Stability (ALPS) indicates marginal stability in first-panel mining and instability in second-panelmore » mining. ALPS and the USBM Coal Mine Roof Rating (CMRR) system are used to evaluate tailgate-mining stability of the previous gate roads and to determine pillar and entry width and top coal thickness criteria for tailgate stability in future panels.« less

Foam property tests to evaluate the potential for longwall shield dust control.

PubMed

Reed, W R; Beck, T W; Zheng, Y; Klima, S; Driscoll, J

2018-01-01

Tests were conducted to determine properties of four foam agents for their potential use in longwall mining dust control. Foam has been tried in underground mining in the past for dust control and is currently being reconsidered for use in underground coal longwall operations in order to help those operations comply with the Mine Safety and Health Administration's lower coal mine respirable dust standard of 1.5 mg/m 3 . Foams were generated using two different methods. One method used compressed air and water pressure to generate foam, while the other method used low-pressure air generated by a blower and water pressure using a foam generator developed by the U.S. National Institute for Occupational Safety and Health. Foam property tests, consisting of a foam expansion ratio test and a water drainage test, were conducted to classify foams. Compressed-air-generated foams tended to have low expansion ratios, from 10 to 19, with high water drainage. Blower-air-generated foams had higher foam expansion ratios, from 30 to 60, with lower water drainage. Foams produced within these ranges of expansion ratios are stable and potentially suitable for dust control. The test results eliminated two foam agents for future testing because they had poor expansion ratios. The remaining two foam agents seem to have properties adequate for dust control. These material property tests can be used to classify foams for their potential use in longwall mining dust control.

Foam property tests to evaluate the potential for longwall shield dust control

PubMed Central

Reed, W.R.; Beck, T.W.; Zheng, Y.; Klima, S.; Driscoll, J.

2018-01-01

Tests were conducted to determine properties of four foam agents for their potential use in longwall mining dust control. Foam has been tried in underground mining in the past for dust control and is currently being reconsidered for use in underground coal longwall operations in order to help those operations comply with the Mine Safety and Health Administration’s lower coal mine respirable dust standard of 1.5 mg/m3. Foams were generated using two different methods. One method used compressed air and water pressure to generate foam, while the other method used low-pressure air generated by a blower and water pressure using a foam generator developed by the U.S. National Institute for Occupational Safety and Health. Foam property tests, consisting of a foam expansion ratio test and a water drainage test, were conducted to classify foams. Compressed-air-generated foams tended to have low expansion ratios, from 10 to 19, with high water drainage. Blower-air-generated foams had higher foam expansion ratios, from 30 to 60, with lower water drainage. Foams produced within these ranges of expansion ratios are stable and potentially suitable for dust control. The test results eliminated two foam agents for future testing because they had poor expansion ratios. The remaining two foam agents seem to have properties adequate for dust control. These material property tests can be used to classify foams for their potential use in longwall mining dust control. PMID:29416179

Impact of induced joy on literacy in children: does the nature of the task make a difference?

PubMed

Tornare, Elise; Cuisinier, Frédérique; Czajkowski, Nikolai O; Pons, Francisco

2017-04-01

This research examined whether induced joy influences fifth graders' performance in literacy tasks. Children were asked to recall a joyful experience, used as a joy induction, before completing either a grammar (Study 1) or textual comprehension task (Study 2). The grammar task involved understanding at the surface level and retrieval of appropriate declarative and procedural knowledge, but limited elaboration unlike the textual comprehension task, which tackled inference generation. By differentiating tasks based on depth of processing required for completion we aimed at testing the validity of two concurrent hypotheses: that of a facilitating effect and that of a detrimental effect of induced joy. Compared to controls, joy induced children showed better performance on the grammar task - specifically children with lower language ability. No differences across groups emerged as a function of joy induction on the text comprehension task. Results are discussed with respect to emotion effects on cognition.

Joy in School

ERIC Educational Resources Information Center

Wolk, Steven

2008-01-01

Many of our greatest joys in life are related to our learning, but, unfortunately, most of that learning takes place outside of school. Educators can put more joy into the experience of going to school and get more joy out of working inside school by focusing on several essentials. Help students find pleasure in learning by giving them the freedom…

A Joyful Classroom Learning System with Robot Learning Companion for Children to Learn Mathematics Multiplication

ERIC Educational Resources Information Center

Wei, Chun-Wang; Hung, I-Chun; Lee, Ling; Chen, Nian-Shing

2011-01-01

This research demonstrates the design of a Joyful Classroom Learning System (JCLS) with flexible, mobile and joyful features. The theoretical foundations of this research include the experiential learning theory, constructivist learning theory and joyful learning. The developed JCLS consists of the robot learning companion (RLC), sensing input…

Finding joy in social work. II: Intrapersonal sources.

PubMed

Pooler, David Kenneth; Wolfer, Terry; Freeman, Miriam

2014-07-01

Despite the social work profession's strengths orientation, research on its workforce tends to focus on problems (for example, depression, problem drinking, compassion fatigue, burnout). In contrast, this study explored ways in which social workers find joy in their work. The authors used an appreciative inquiry approach, semistructured interviews (N = 26), and a collaborative grounded theory method of analysis. Participants identified interpersonal (making connections and making a difference) and intrapersonal (making meaning and making a life) sources of joy and reflected significant personal initiative in the process of finding joy. The authors present findings regarding these intrapersonal sources of joy.

Characteristics of airborne dust in the return airways of the mechanized longwall face

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gueyagueler, T.; Keskin, S.

1999-07-01

In this paper the results of a research study on the characterization of airborne dust in the return airway of the mechanized longwall face at Middle Anatolian Lignite Mine, OAL are presented. Dust, temperature, moisture and air velocity measurements are carried out in the return airways of the fully mechanized longwalls. Then the analyses of results on real-time concentration data, mass concentration data, effect of moisture, heat and air velocity on dust concentration are made. It has been found that amount of dust in return airway is directly related to the face activities and to the amount of settled dustmore » on the return airway. Moreover, the relationship between dust deposition rate and distance was studied. Another objective of this study is to determine the reliability of different dust samplers used in sampling. Comparison of results showed that for the lower dust concentration, there is not any significant differences between the measurements of samplers. But as the dust concentration exceeds 15 mg/m{sup 3}, the difference in measurements becomes significant.« less

The joy at birth: an interpretive hermeneutic literature review.

PubMed

Crowther, Susan; Smythe, Elizabeth; Spence, Deb

2014-04-01

this literature review examines the experience of joy at birth and what that joy means. The premise is that the whole of the birthing experience has not been fully explicated in the literature and that something of significance remains unexplored and unspoken. It is argued that a hermeneutic phenomenological approach to reviewing literature provides unique insights and leads to deeper understandings about birth and the experience of joy that attunes at that moment. the philosophical underpinnings informed by Heidegger and Gadamer are central to this review and therefore the process of reviewing literature hermeneutically is described. Heideggerian phenomenology is used as the method to ask the questions of the literature in order that concealed and hidden experiences of joy at birth are made visible where they are gleaned from the literature. A hermeneutic lens is used to uncover relationships within the phenomenon of joy at birth and meaning. although a vast birth literature was reviewed joy at birth was often ignored, hidden or covered over. Reviewing the literature on relationships, professional presence, place of birth, birth satisfaction studies and birth as peak and spiritual experience provides glimpses of the phenomenon 'joy at birth'. it is argued that joy at birth remains largely neglected as a phenomenon worthy of consideration. Plausible interpretations are presented that suggest that joy at birth points to something significant and meaningful. Spiritual and sacred meaning is alluded to in the papers reviewed yet the majority of papers that investigate birth leave this meaning unspoken. The review highlights a need for further thinking and questioning about birth that would direct on-going investigation. Copyright © 2014 Elsevier Ltd. All rights reserved.

Reading the lines in the face: The contribution of angularity and roundness to perceptions of facial anger and joy.

PubMed

Franklin, Robert G; Adams, Reginald B; Steiner, Troy G; Zebrowitz, Leslie A

2018-05-14

Through 3 studies, we investigated whether angularity and roundness present in faces contributes to the perception of anger and joyful expressions, respectively. First, in Study 1 we found that angry expressions naturally contain more inward-pointing lines, whereas joyful expressions contain more outward-pointing lines. Then, using image-processing techniques in Studies 2 and 3, we filtered images to contain only inward-pointing or outward-pointing lines as a way to approximate angularity and roundness. We found that filtering images to be more angular increased how threatening and angry a neutral face was rated, increased how intense angry expressions were rated, and enhanced the recognition of anger. Conversely, filtering images to be rounder increased how warm and joyful a neutral face was rated, increased the intensity of joyful expressions, and enhanced recognition of joy. Together these findings show that angularity and roundness play a direct role in the recognition of angry and joyful expressions. Given evidence that angularity and roundness may play a biological role in indicating threat and safety in the environment, this suggests that angularity and roundness represent primitive facial cues used to signal threat-anger and warmth-joy pairings. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

Chronic granulomatous disease

MedlinePlus

... Fleisher TA, Shearer WT, et al, eds. Clinical Immunology . 4th ed. Philadelphia, PA: Elsevier Saunders; 2013:chap ... Read more NIH MedlinePlus Magazine Read more Health Topics A-Z Read more A.D.A.M., ...

A Novel Adjustment Method for Shearer Traction Speed through Integration of T-S Cloud Inference Network and Improved PSO

PubMed Central

Si, Lei; Wang, Zhongbin; Yang, Yinwei

2014-01-01

In order to efficiently and accurately adjust the shearer traction speed, a novel approach based on Takagi-Sugeno (T-S) cloud inference network (CIN) and improved particle swarm optimization (IPSO) is proposed. The T-S CIN is built through the combination of cloud model and T-S fuzzy neural network. Moreover, the IPSO algorithm employs parameter automation adjustment strategy and velocity resetting to significantly improve the performance of basic PSO algorithm in global search and fine-tuning of the solutions, and the flowchart of proposed approach is designed. Furthermore, some simulation examples are carried out and comparison results indicate that the proposed method is feasible, efficient, and is outperforming others. Finally, an industrial application example of coal mining face is demonstrated to specify the effect of proposed system. PMID:25506358

Satellite radar interferometry for monitoring subsidence induced by longwall mining activity using Radarsat-2, Sentinel-1 and ALOS-2 data

NASA Astrophysics Data System (ADS)

Ng, Alex Hay-Man; Ge, Linlin; Du, Zheyuan; Wang, Shuren; Ma, Chao

2017-09-01

This paper describes the simulation and real data analysis results from the recently launched SAR satellites, ALOS-2, Sentinel-1 and Radarsat-2 for the purpose of monitoring subsidence induced by longwall mining activity using satellite synthetic aperture radar interferometry (InSAR). Because of the enhancement of orbit control (pairs with shorter perpendicular baseline) from the new satellite SAR systems, the mine subsidence detection is now mainly constrained by the phase discontinuities due to large deformation and temporal decorrelation noise. This paper investigates the performance of the three satellite missions with different imaging modes for mapping longwall mine subsidence. The results show that the three satellites perform better than their predecessors. The simulation results show that the Sentinel-1A/B constellation is capable of mapping rapid mine subsidence, especially the Sentinel-1A/B constellation with stripmap (SM) mode. Unfortunately, the Sentinel-1A/B SM data are not available in most cases and hence real data analysis cannot be conducted in this study. Despite the Sentinel-1A/B SM data, the simulation and real data analysis suggest that ALOS-2 is best suited for mapping mine subsidence amongst the three missions. Although not investigated in this study, the X-band satellites TerraSAR-X and COSMO-SkyMed with short temporal baseline and high spatial resolution can be comparable with the performance of the Radarsat-2 and Sentinel-1 C-band data over the dry surface with sparse vegetation. The potential of the recently launched satellites (e.g. ALOS-2 and Sentinel-1A/B) for mapping longwall mine subsidence is expected to be better than the results of this study, if the data acquired from the ideal acquisition modes are available.

Application of underground microseismic monitoring for ground failure and secure longwall coal mining operation: A case study in an Indian mine

NASA Astrophysics Data System (ADS)

Ghosh, G. K.; Sivakumar, C.

2018-03-01

Longwall mining technique has been widely used around the globe due to its safe mining process. However, mining operations are suspended when various problems arise like collapse of roof falls, cracks and fractures propagation in the roof and complexity in roof strata behaviors. To overcome these colossal problems, an underground real time microseismic monitoring technique has been implemented in the working panel-P2 in the Rajendra longwall underground coal mine at South Eastern Coalfields Limited (SECL), India. The target coal seams appears at the panel P-2 within a depth of 70 m to 76 m. In this process, 10 to 15 uniaxial geophones were placed inside a borehole at depth range of 40 m to 60 m located over the working panel-P2 with high rock quality designation value for better seismic signal. Various microseismic events were recorded with magnitude ranging from -5 to 2 in the Richter scale. The time-series processing was carried out to get various seismic parameters like activity rate, potential energy, viscosity rate, seismic moment, energy index, apparent volume and potential energy with respect to time. The used of these parameters helped tracing the events, understanding crack and fractures propagation and locating both high and low stress distribution zones prior to roof fall occurrence. In most of the cases, the events were divided into three stage processes: initial or preliminary, middle or building, and final or falling. The results of this study reveal that underground microseismic monitoring provides sufficient prior information of underground weighting events. The information gathered during the study was conveyed to the mining personnel in advance prior to roof fall event. This permits to take appropriate action for safer mining operations and risk reduction during longwall operation.

Too proud to regulate: The differential effect of pride versus joy on children's ability to delay gratification.

PubMed

Shimoni, Einav; Asbe, Marwa; Eyal, Tal; Berger, Andrea

2016-01-01

We examined the effect of the distinct positive emotions pride and joy on children's self-regulation, focusing on their ability to delay gratification (i.e., resist a temptation in favor of a long-term goal). We hypothesized that because pride corresponds to the attainment of long-term goals and joy corresponds to the attainment of immediate desires, the experience of pride may signal sufficient progress toward a long-term goal, resulting in less delay of gratification than the experience of joy. To test this hypothesis, we induced an experience of pride or joy in 8-year-old children. At this age, the ability to self-regulate--and to experience pride and joy distinctively--is relatively mature. We then measured performance in a delay discounting task. We found that, compared with the joy condition and a control condition, children who experienced pride performed worse on the delay discounting task (p=.045), indicating poorer self-regulation. This result suggests that emotions may function as cues for sufficient goal pursuit, thereby influencing self-regulation from a very young age. Copyright © 2015 Elsevier Inc. All rights reserved.

The Pertinence of Joy.

ERIC Educational Resources Information Center

Magen, Ziporah

1982-01-01

Describes a study which examined differences in the experience of joy between Israeli Jewish, Israeli Arab, and American adolescents. The interpersonal experience was the most common source of joy in all three cultures. The data also showed greater differences between males and females than between cultures. (AM)

New control strategies for longwall armored face conveyors

DOE Office of Scientific and Technical Information (OSTI.GOV)

Broadfoot, A.R.; Betz, R.E.

1998-03-01

This paper investigates a new control approach for longwall armored face conveyors (AFC`s) using variable-speed drives (VSD`s). Traditionally, AFC`s have used fixed-speed or two-speed motors, with various mechanical solutions employed to try to solve the problems that this causes. The VSD approach to the control problem promises to solve all the significant problems associated with the control of AFC`s. This paper will present the control algorithms developed for a VSD-based AFC drive system and demonstrate potential performance via computer simulation. A full discussion of the problems involved with the control of AFC`s can be found in the companion paper.

CFD modelling of sampling locations for early detection of spontaneous combustion in long-wall gob areas.

PubMed

Yuan, Liming; Smith, Alex C

In this study, computational fluid dynamics (CFD) modeling was conducted to optimize gas sampling locations for the early detection of spontaneous heating in longwall gob areas. Initial simulations were carried out to predict carbon monoxide (CO) concentrations at various regulators in the gob using a bleeder ventilation system. Measured CO concentration values at these regulators were then used to calibrate the CFD model. The calibrated CFD model was used to simulate CO concentrations at eight sampling locations in the gob using a bleederless ventilation system to determine the optimal sampling locations for early detection of spontaneous combustion.

Determination of Destress Blasting Effectiveness Using Seismic Source Parameters

NASA Astrophysics Data System (ADS)

Wojtecki, Łukasz; Mendecki, Maciej J.; Zuberek, Wacaław M.

2017-12-01

Underground mining of coal seams in the Upper Silesian Coal Basin is currently performed under difficult geological and mining conditions. The mining depth, dislocations (faults and folds) and mining remnants are responsible for rockburst hazard in the highest degree. This hazard can be minimized by using active rockburst prevention, where destress blastings play an important role. Destress blastings in coal seams aim to destress the local stress concentrations. These blastings are usually performed from the longwall face to decrease the stress level ahead of the longwall. An accurate estimation of active rockburst prevention effectiveness is important during mining under disadvantageous geological and mining conditions, which affect the risk of rockburst. Seismic source parameters characterize the focus of tremor, which may be useful in estimating the destress blasting effects. Investigated destress blastings were performed in coal seam no. 507 during its longwall mining in one of the coal mines in the Upper Silesian Coal Basin under difficult geological and mining conditions. The seismic source parameters of the provoked tremors were calculated. The presented preliminary investigations enable a rapid estimation of the destress blasting effectiveness using seismic source parameters, but further analysis in other geological and mining conditions with other blasting parameters is required.

Groundwater geochemistry in shallow aquifers above longwall mines in Illinois, USA

NASA Astrophysics Data System (ADS)

Booth, C. J.; Bertsch, L. P.

1999-12-01

Aquifers above high-extraction underground coal mines are not affected by mine drainage, but they may still exhibit changes in groundwater chemistry due to alterations in groundwater flow induced by mine subsidence. At two active longwall mine sites in Illinois, USA, glacial-drift aquifers were largely unaffected by mining, but the geochemistry of the bedrock aquifers changed during the post-mining water-level recovery. At the Jefferson site, brackish, high-sulfate water present in the upper bedrock shale briefly had lower values of total dissolved solids (TDS) after mining due to increased recharge from the overlying drift, whereas TDS and sulfate increased in the sodium-bicarbonate water present in the underlying sandstone due to downward leakage from the shale and lateral inflow of water through the sandstone. At the Saline site, sandstones contained water ranging from brackish sodium-chloride to fresh sodium-bicarbonate type. Post-mining recovery of the potentiometric levels was minimal, and the water had minor quality changes. Longwall mining affects geochemistry due to subsidence-related fracturing, which increases downward leakage from overlying units, and due to the temporary potentiometric depression and subsequent recovery, whereby water from surrounding areas of the aquifer recharges the affected zone above and adjacent to the mine.

The Joy of Learning: Feminist Materialist Pedagogies and the Freedom of Education

ERIC Educational Resources Information Center

Tamboukou, Maria

2018-01-01

In this article, I trace lines of materialist pedagogies in the history of women workers' education following feminist interpretations of Spinoza's assemblage of joyful affects. More particularly, I focus on the notions of "laetitia" [joy], "gaudium" [gladness] and "hilaritas" [cheerfulness] as entanglements of joy…

78 FR 774 - Joy Global, Inc., Also Known as Joy Technologies, Inc., Including On-Site Leased Workers From All...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-04

... Manpower, Franklin, PA; Notice of Affirmative Determination Regarding Application for Reconsideration By... All Seasons Temporaries and Manpower, Franklin, Pennsylvania (Joy Global). The determination was... product. The initial investigation resulted in a negative determination based on the findings that, with...

Genus VIII. Kibdelosporangium Shearer, Colman, Ferrin, Nisbet and Nash 1986, 48

USDA-ARS?s Scientific Manuscript database

The morphology, physiology, systematics, ecology, and natural products of the species that currently compose the actinobacterial genus Kibdelosporangium is presented. The phylogenetic position of the taxa within this genus, including Kibdelosporangium aridum subsp. aridum, Kibdelosporangium aridum ...

Joy in the Montessori Classroom

ERIC Educational Resources Information Center

Ulrich, Tamara D.

2014-01-01

In this article, the author states that it is a delight to walk into a Montessori classroom to the hum of children engaged in a variety of activities, especially when there is an accompanying feeling of joy and happiness. In desiring the peaceful calm of the classroom, educators may inadvertently hinder the joy, enthusiasm, and imagination that…

Pain and Joy in School.

ERIC Educational Resources Information Center

Schultz, Edward W.; And Others

This book deals with how schools can generate experiences which are both painful and joyful to students. It endorses a kind of schooling which will teach students love of life, pursuit of truth, and human compassion. The book presents both the joyful and painful experiences of students through short stories and comments by both children and…

The Effect of Power Protection Equipment on Explosion Hazards and on the Reliability of Power Supply to Longwall Systems

NASA Astrophysics Data System (ADS)

Boron, Sergiusz

2017-06-01

Operational safety of electrical machines and equipment depends, inter alia, on the hazards resulting from their use and on the scope of applied protective measures. The use of insufficient protection against existing hazards leads to reduced operational safety, particularly under fault conditions. On the other hand, excessive (in relation to existing hazards) level of protection may compromise the reliability of power supply. This paper analyses the explosion hazard created by earth faults in longwall power supply systems and evaluates existing protection equipment from the viewpoint of its protective performance, particularly in the context of explosion hazards, and also assesses its effect on the reliability of power supply.

Joy Osborne, MS, MPA | Division of Cancer Prevention

Cancer.gov

Joy Osborne is the ARC Director for the Division of Cancer Prevention and the Division of Cancer Control and Population Sciences. The ARC (Administrative Resource Center) provides services to DCP in the areas of budget, contracts, grants, human resources, travel, space and facilities, and other administrative areas. Joy came to NCI in 1992 as a Presidential Management Intern

Affinity for Poetry and Aesthetic Appreciation of Joyful and Sad Poems

PubMed Central

Kraxenberger, Maria; Menninghaus, Winfried

2017-01-01

Artworks with sad and affectively negative content have repeatedly been reported to elicit positive aesthetic appreciation. This topic has received much attention both in the history of poetics and aesthetics as well as in recent studies on sad films and sad music. However, poetry and aesthetic evaluations of joyful and sad poetry have received only little attention in empirical studies to date. We collected beauty and liking ratings for 24 sad and 24 joyful poems from 128 participants. Following previous studies, we computed an integrated measure for overall aesthetic appreciation based on the beauty and liking ratings to test for differences in appreciation between joyful and sad poems. Further, we tested whether readers' judgments are related to their affinity for poetry. Results show that sad poems are rated significantly higher for aesthetic appreciation than joyful poems, and that aesthetic appreciation is influenced by the participants' affinity for poetry. PMID:28119649

Affinity for Poetry and Aesthetic Appreciation of Joyful and Sad Poems.

PubMed

Kraxenberger, Maria; Menninghaus, Winfried

2016-01-01

Artworks with sad and affectively negative content have repeatedly been reported to elicit positive aesthetic appreciation. This topic has received much attention both in the history of poetics and aesthetics as well as in recent studies on sad films and sad music. However, poetry and aesthetic evaluations of joyful and sad poetry have received only little attention in empirical studies to date. We collected beauty and liking ratings for 24 sad and 24 joyful poems from 128 participants. Following previous studies, we computed an integrated measure for overall aesthetic appreciation based on the beauty and liking ratings to test for differences in appreciation between joyful and sad poems. Further, we tested whether readers' judgments are related to their affinity for poetry. Results show that sad poems are rated significantly higher for aesthetic appreciation than joyful poems, and that aesthetic appreciation is influenced by the participants' affinity for poetry.

Christian Learner: Wisdom and Gaining Knowledge Equals Joy

ERIC Educational Resources Information Center

Nagle, Bonne

2012-01-01

When a Christian learner gains insight that learning is needed and takes the appropriate action to learn the knowledge and apply it, there will be joy and satisfaction with learning. The premise for this paper is in the Bible verse Ecclesiastes 2:26: (NASB) "For to a person who is good in His sight He has given wisdom and knowledge and joy..."…

Advancements for continuous miners

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fiscor, S.

2007-06-15

Design changes and new technology make the modern continuous miner more user friendly. Two of the major manufacturers, Joy Mining Machinery and DBT, both based near Pittsburgh, PA, USA, have recently acquired other OEMs to offer a greater product line. Joy's biggest development in terms of improving cutting time is the FACEBOSS Control System which has an operator assistance element and Joy Surface Reporting Software (JSRP). Joy's WetHead continuous miners have excellent performance. DBT is researching ways to make the machines more reliable with new drive systems. It has also been experimenting with water sprays to improve dust suppression. 4more » photos.« less

Joy and happiness: a simultaneous and evolutionary concept analysis.

PubMed

Cottrell, Laura

2016-07-01

To report a simultaneous and evolutionary analysis of the concepts of joy and long-term happiness. Joy and happiness are underrepresented in the nursing literature, though negative concepts are well represented. When mentioned in the literature, neither joy nor happiness is adequately defined, explained, or clearly understood. To promote further investigation of these concepts in nursing and to explore their relationship with health and healing, conceptual clarity is an essential first step. Concept analysis. The following databases were searched, without time restrictions, for articles in English: Academic Search Complete, Anthropology Plus; ATLA Religious Database with ATLASerials; Cumulative Index of Nursing and Allied Health Literature (CINAHL); Education Research Complete; Humanities International Complete; Psych EXTRA; and SocINDEX with Full Text. The final sample size consists of 61 articles and one book, published between 1978-2014. An adapted combination of Rodgers' Evolutionary Model and Haase et al.'s Simultaneous Concept Analysis (SCA) method. Though both are positive concepts, joy and happiness have significant differences. Attributes of joy describe a spontaneous, sudden and transient concept associated with connection, awareness, and freedom. Attributes of happiness describe a pursued, long-lasting, stable mental state associated with virtue and self-control. Further exploration of joy and happiness is necessary to ascertain their relationship with health and their value to nursing practice and theory development. Nurses are encouraged to consider the value of positive concepts to all areas of nursing. © 2016 John Wiley & Sons Ltd.

Multi-Sensor Data Fusion Identification for Shearer Cutting Conditions Based on Parallel Quasi-Newton Neural Networks and the Dempster-Shafer Theory.

PubMed

Si, Lei; Wang, Zhongbin; Liu, Xinhua; Tan, Chao; Xu, Jing; Zheng, Kehong

2015-11-13

In order to efficiently and accurately identify the cutting condition of a shearer, this paper proposed an intelligent multi-sensor data fusion identification method using the parallel quasi-Newton neural network (PQN-NN) and the Dempster-Shafer (DS) theory. The vibration acceleration signals and current signal of six cutting conditions were collected from a self-designed experimental system and some special state features were extracted from the intrinsic mode functions (IMFs) based on the ensemble empirical mode decomposition (EEMD). In the experiment, three classifiers were trained and tested by the selected features of the measured data, and the DS theory was used to combine the identification results of three single classifiers. Furthermore, some comparisons with other methods were carried out. The experimental results indicate that the proposed method performs with higher detection accuracy and credibility than the competing algorithms. Finally, an industrial application example in the fully mechanized coal mining face was demonstrated to specify the effect of the proposed system.

Adolescents' emotional engagement in friends' problems and joys: Associations of empathetic distress and empathetic joy with friendship quality, depression, and anxiety.

PubMed

Smith, Rhiannon L

2015-12-01

Although empathetic distress (i.e., taking on a friend's emotional distress as one's own) has been examined as a "cost of caring" especially common among girls, relations with adjustment remain untested. The current study tested associations of empathetic distress with friendship quality, depression, and anxiety. Adolescents (N = 300, ages 12-18) reported on their perceived experience of empathetic distress following a conversation with a friend about problems. The study also considered youths' emotional engagement in friends' positive life events, referred to as empathetic joy. Results indicated that girls reported greater empathetic distress and empathetic joy compared with boys. Findings also suggest that although empathetic distress may have positive implications for youths' friendship adjustment, this may come at the expense of emotional well-being. In contrast, empathetic joy was associated with greater positive friendship quality and fewer internalizing symptoms. Copyright © 2015 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.

Study of the ‘lifeline’ as the measure allowing for safe self-rescue of miners in conditions of lack of visibility caused by underground fire

NASA Astrophysics Data System (ADS)

Badura, Henryk; Grodzicka, Aneta; Musioł, Dariusz

2017-11-01

The article presents statistical data regarding the evacuation of miners affected by underground fire hazards. The data indicates that the hazard remains considerable. Due to the increasing lengths of escape routes, measures should be introduced in the longwall regions, which shall improve the safe evacuation of miners, especially in conditions of highly limited visibility or the lack thereof. Within the research project No. 12, entitled: ‘The development of orientation systems and systems for signalling the direction of crew withdrawal for escape routes in longwall gates’, which is a part of the Strategic Research Project entitled ‘The improvement of work safety in mines’ financed by the National Centre for Research and Development, a ‘lifeline’ was designed - that is, a measure that is very effective in the evacuation of staff. Subsequently, tests of time of passage were conducted in the ‘Krupiński’ coal mine in conditions of lack of visibility. The tests have confirmed the suitability of the ‘lifeline’ as the measure used for orientation towards the correct direction of evacuation, which increases the pace and the confidence while travelling through the escape route. The mean speed of passage through the heading with an upwards inclination of 11° was 22 m/min, while in case of a nearly horizontal longwall gate, it was 39 m/min.

Unique Project of Single-Cutting Head Longwall Shearer Used for Thin Coal Seams Exploitation / Projekt Jednoorganowego Kombajnu ŚCIANOWEGO O Specjalnej Konstrukcji Przeznaczonego do Eksploatacji POKŁADÓW Cienkich

NASA Astrophysics Data System (ADS)

Bołoz, Łukasz

2013-12-01

Problem of thin hard coal seams exploitation, including chosen data related with their resources in Poland, has been discussed in the introduction of the present study. On the basis of actually operated machines the assumptions, which should be satisfied by the longwall shearer used for exploitation of thin hard coal seams, have been made. A project of such longwall shearer combined with band conveyor and mechanized longwall support, including description of the machine operation technology and analysis of possible day output achievement, have been presented. Polska dysponuje stosunkowo dużymi zasobami surowców energetycznych, a ciągle rosnące zapotrzebowanie na energię skłania do ich racjonalnego wykorzystywania. Jedną z możliwości takiego racjonalnego gospodarowania zasobami naturalnymi jest eksploatacja węgla kamiennego z pokładów cienkich. W związku z wybieraniem coraz cieńszych pokładów węgla, zalegających bardzo głęboko, w trudnych warunkach górniczo-geologicznych napotyka się na duże problemy związane z uzyskaniem wymaganej wydajności wydobycia przy użyciu stosowanych aktualnie metod. Przyjmuje się, ze pokłady cienkie to takie o miąższości od 1.0 m do 1.5 m i właśnie ta niewielka wysokość wyrobiska ścianowego powoduje szereg ograniczeń związanych z efektywną eksploatacją węgla. Na podstawie dostępnych danych określono, że ilości węgla kamiennego w cienkich pokładach wynosi około 600 mln Mg. Znaczna część pokładów cienkich w ostatnich latach została przeklasyfikowana na nieprzemysłowe, co pozwala stwierdzić, że rzeczywista ilość węgla w pokładach cienkich jest znacznie większa. Na podstawie analizy wad i zalet jak i danych technicznych produkowanych obecnie maszyn, określono wytyczne i założenia do nowego rozwiązania maszyny urabiającej przeznaczonej do wydobywania węgla w ścianach niskich. Kombajn do eksploatacji cienkich pokładów powinien spełniać następujące wymagania (Bołoz, 2012): • praca w systemie ścianowym, • zastosowanie frezowania jako metody skrawania, • rozdzielenie procesu frezowania od procesu ładowania, • zastosowanie pełnej automatyzacja pracy, • zastosowanie cięgnowego systemu posuwu, • możliwość rozpoczynania nowego skrawu bez konieczności zawrębiania, • gabaryty dostosowane do pracy w ścianach o wysokości od 1.0 m do 1.6 m, praca systemem dwukierunkowym. Fig. 2 przedstawia koncepcję kombajnu jednoorganowego. Kombajn ten składa się z kadłuba 2, jednego zamocowanego centralnie organu urabiającego 1 oraz dwóch rozkładanych ładowarek odkładniowych 3 i 4. Ładowarka 3 znajduje się w pozycji czynnej, natomiast ładowarka 4 w biernej. Kombajn jest ciągnięty po rynnach przenośnika 5 za pomocą łańcucha 6. Łańcuch 7 jest gałęzią bierną dla przedstawionego zwrotu prędkości. Podane, orientacyjne wymiary wynikają z analizy dotychczasowych rozwiązań kombajnów, głowic strugowych oraz założonego zakresu wysokości wyrobiska ścianowego (Krauze, 2006; Bołoz, 2012). Dla zaproponowanego rozwiązania przyjęto szereg koniecznych wielkości i przeprowadzono analizę możliwego do uzyskania wydobycia dobowego. Zestawione tabelarycznie wyniki umożliwiają określenie wydobycia dobowego możliwego do uzyskania przy określonych wartościach parametrów geometrycznych ściany, kinematycznych kombajnu oraz organizacyjnych pracy ściany. Dla założonych parametrów można stwierdzić, że minimalne wydobycie dobowe na poziomie Vd = 4032 Mg/d uzyskano dla L = 180 m, tp = 11 min, H = 1.0 m oraz T = 12 h/d. Maksymalne wydobycie dobowe na poziomie Vd = 11 612 Mg/d uzyskać można dla L = 300 m, tp = 0 min, H = 1.6 m oraz T = 18 h/d. Na wydobycie dobowe największy wpływ ma dobowy czas pracy ściany a następnie czas przekładki (Bołoz, 2012). Średnica organu dla takiego kombajnu dobierana jest do grubości pokładu. W przedmiotowym rozwiązaniu przyjęto organ o konstrukcji przestrzennej (belki nożowe zamiast płatów), aby powstający podczas frezowania urobek mógł spadać na spąg (Krauze, 2012b). Przykładowe rozwiązanie organu przestrzennego przedstawia fig. 3. Funkcję ładowania, realizowaną normalnie przez płaty, przejmują ładowarki. Rozdzielenie procesu ładowania od procesu frezowania jest jedną z najważniejszych zalet prezentowanego rozwiązania. Podczas pracy w ścianie parametry kinematyczne kombajnu mogą być zwiększane bez ryzyka wystąpienia problemów z ładowaniem na przenośnik, co obok możliwości ruchowych kombajnisty było głównym czynnikiem hamującym wzrost wydobycia. Załadunek urobku na przenośnik odbywa się za pomocą ładowarki, która po zmianie kierunku urabiania składa się, natomiast druga ustawiana jest w pozycji roboczej (Krauze, 2010). Kombajn porusza się tradycyjnie po rynnie przenośnika, jednak przy zastosowaniu cięgnowego systemu posuwu, który zrealizowany jest za pomocą napędów znajdujących się w chodnikach. Rozwiązanie takie umożliwia znaczne zmniejszenie gabarytów kombajnu dzięki usunięciu ciągników z kadłuba. Należy zaznaczyć, że w prezentowanym rozwiązaniu zakłada się zastosowanie pełnej automatyzacja pracy kombajnu i pozostałych maszyn ścianowych, co pozwala na urabianie calizny bez obecności załogi bezpośrednio w wyrobisku. Ma to duże znaczenie dla możliwości zwiększenia prędkości posuwu, szczególnie przy zakresie wysokości 1.0 m÷1.6 m. Przy wykorzystaniu znanych, z rozwiązań strugowych, systemów automatyki, sterowania i diagnostyki wprowadzenie automatyzacji procesu nie będzie stanowiło znaczącego problemu. W proponowanym rozwiązaniu kombajn ma możliwość wyjechania do chodnika na tyle, aby możliwe było zrealizowanie przekładki jak w przypadku strugów. Uzyskuje się wtedy krótki czas przekładki, który w skrajnym przypadku może zmieścić się w tzw. czasie organizacyjnym ściany. Ponadto urabianie odbywa się pełnym zabiorem na całej długości ściany co również korzystnie wpływa na wydobycie. Przekładkę realizować będą, oprócz układów przesuwnych sekcji, układy przesuwne napędów zlokalizowane w chodnikach lub ewentualnie obudowa skrzyżowań. Do sterowania położeniem kombajnu jednoorganowego, a w szczególności kierunkiem eksploatacji na wybiegu ściany (wznios, upad), zastosowane będą siłowniki korekcyjne łączące belkę układu przesuwnego sekcji z rynną przenośnika. Kopalnie jak i producenci sprzętu górniczego wykazują coraz większe zainteresowanie możliwością skutecznej eksploatacji pokładów cienki. Zaproponowany kompleks do eksploatacji cienkich pokładów wyposażony w kombajn jednoorganowy przeznaczony jest do pracy w technologii urabiania dwukierunkowego. Charakterystyczną cechą tej technologii jest brak fazy zawrębiania oraz praca na pełny zabiór na całej długości ściany. W przypadku zmiany grubości pokładu możliwa jest zmiana organu, natomiast sterowanie w kierunku wybiegu odbywać się będzie za pomocą siłowników korekcyjnych. Opracowanie technologii pracy kompleksu wyposażonego w kombajn jednoorganowy, analiza możliwego do osiągnięcia wydobycia dobowego, przy jego zastosowaniu oraz określenie wymaganych parametrów maszyn kompleksu ścianowego, a w szczególności kombajnu, potwierdza poprawność przyjętych założeń.

Simulations for the Test Flight of an Experimental HALE Aircraft

DTIC Science & Technology

2011-06-01

as a plant representation for HALE aircraft control design. It focuses on a reduced number of states to represent the complex nonlinear problem...Atkins, Ella M., Shearer, Christopher M. and Nathan A. Pitcher . “X-HALE: A Very Flexible UAV for Nonlinear Aeroelastic Tests.” (AIAA 2010-2715), April

Estimating Bodywave Arrivals and Attenuation from Seismic Noise

DTIC Science & Technology

2009-09-30

power) and Figure 3d the standardized site amplification terms from Savage and Helmberger (2004) who used the Pnl ratio of vertical to radial energy...incident Pnl waves, Bull. Seismol. Soc. Am. 94: 357-362. Shearer, P. (1997). Improving local earthquake locations using the LI norm and waveform

30 CFR 75.816 - Guarding of cables.

Code of Federal Regulations, 2010 CFR

2010-07-01

... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground High-Voltage Distribution High-Voltage Longwalls § 75.816 Guarding of cables. (a) High-voltage cables must be guarded at the following locations...

Antioxidant effect of a fermented powder of Lady Joy bean in primary rat hepatocytes.

PubMed

La Marca, Margherita; Pucci, Laura; Bollini, Roberto; Russo, Rossella; Sparvoli, Francesca; Gabriele, Morena; Longo, Vincenzo

2015-03-01

The role and beneficial effects of plant and food extracts against various diseases induced by oxidative stress have received much attention in recent years. Legumes are rich in bioactive compounds, and some studies suggest a correlation between their consumption and a reduced incidence of diseases. Primary cultures of rat hepatocytes were used to investigate whether and how an extract obtained from a fermented powder of bean named Lady Joy (Phaseolus vulgaris L.) is able to regulate antioxidant and detoxifying enzymes through the NRF2 pathway, inhibit NF-kB activation, and reduce H2O2-induced endoplasmic reticulum (ER) stress. All of the antioxidant and detoxifying enzymes studied were significantly up-regulated by Lady Joy treatment. Western blot showed that Nrf2 was activated by Lady Joy treatment. Also, cells treated with this fermented bean were partially protected against NF-kB activation resulting from H2O2 stress. As a link between oxidative stress and ER dysfunction is hypothesized, we verified whether Lady Joy was able to protect cells from H2O2-induced ER stress, by studying the response of the proteins CHOP, BiP and caspase 12. The results of this study show that Lady Joy can induce the Nrf2 pathway, inhibit NF-kB, and protect ER from stress induced by H2O2.

Live Your Life Well

MedlinePlus

... Help Others Get Enough Sleep Create Joy and Satisfaction Eat Well Take Care of Your Spirit Deal ... Help others Get enough sleep Create joy and satisfaction Eat well Take care of your spirit Deal ...

78 FR 19009 - Gary Alfred Shearer, M.D.; Decision And Order

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-28

...] suspension, denial or revocation of [a] registration.'' 28 CFR 0.104, Appendix to Subpart R of Part 0, Sec. 7... January 8, 2013, with proof of service upon the Respondent. Accompanying the Motion was an affidavit by... or the jurisdiction in which he practices * * * to distribute, dispense, * * * [or] administer...

Mathematical model of simple spalling formation during coal cutting with extracting machine

NASA Astrophysics Data System (ADS)

Gabov, V. V.; Zadkov, D. A.

2018-05-01

A single-mass model of a rotor shearer is analyzed. It is shown that rotor mining machines has large inertia moments and load dynamics. An extraction module model with selective movement of the cutting tool is represented. The peculiar feature of such extracting machines is fluid power drive cutter mechanism. They can steadily operate at large shear thickness, and locking modes are not an emergency for them. Comparing with shearers they have less inertional mass, but slower average cutting speed, and its momentary values depend on load. Basing on the equation of hydraulic fuel consumption balance the work of fluid power drive of extracting module cutter mechanism together with hydro pneumatic accumulator is analyzed. Spalling formation model during coal cutting with fluid power drive cutter mechanism and potential energy stores are suggested. Matching cutter speed with the speed of main crack expansion and amount of potential energy consumption, cutter load is determined only by ultimate stress at crack pole and friction. Tests of an extracting module cutter in real size model proved the stated theory.

Multi-Sensor Data Fusion Identification for Shearer Cutting Conditions Based on Parallel Quasi-Newton Neural Networks and the Dempster-Shafer Theory

PubMed Central

Si, Lei; Wang, Zhongbin; Liu, Xinhua; Tan, Chao; Xu, Jing; Zheng, Kehong

2015-01-01

In order to efficiently and accurately identify the cutting condition of a shearer, this paper proposed an intelligent multi-sensor data fusion identification method using the parallel quasi-Newton neural network (PQN-NN) and the Dempster-Shafer (DS) theory. The vibration acceleration signals and current signal of six cutting conditions were collected from a self-designed experimental system and some special state features were extracted from the intrinsic mode functions (IMFs) based on the ensemble empirical mode decomposition (EEMD). In the experiment, three classifiers were trained and tested by the selected features of the measured data, and the DS theory was used to combine the identification results of three single classifiers. Furthermore, some comparisons with other methods were carried out. The experimental results indicate that the proposed method performs with higher detection accuracy and credibility than the competing algorithms. Finally, an industrial application example in the fully mechanized coal mining face was demonstrated to specify the effect of the proposed system. PMID:26580620

Justification of process of loading coal onto face conveyors by auger heads of shearer-loader machines

NASA Astrophysics Data System (ADS)

Nguyen, K. L.; Gabov, V. V.; Zadkov, D. A.; Le, T. B.

2018-03-01

This paper analyzes the processes of removing coal from the area of its dislodging and loading the disintegrated mass onto face conveyors by auger heads of shearer-loader machines. The loading process is assumed to consist of four subprocesses: dislodging coal, removal of the disintegrated mass by auger blades from the crushing area, passive transportation of the disintegrated mass, and forming the load flow on the bearing surface of a face conveyor. Each of the considered subprocesses is different in its physical nature, the number of factors influencing it, and can be complex or multifactor. Possibilities of improving the efficiency of loading coal onto a face conveyor are addressed. The selected criteria of loading efficiency are load rate, specific energy consumption, and coal size reduction. Efficiency is improved by reducing the resistance to movement of the disintegrated mass during loading by increasing the area of the loading window section and the volume of the loading area on the conveyor, as well as by coordination of intensity of flows related to the considered processes in local areas.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Martinelli, D.; Banta, L.; Peng, S.

This document presents the findings of a study conducted at West Virginia University to determine the feasibility of using a combination of longwall mining and standard landfill lining technologies to mitigate contamination of groundwater supplies by leachates from hazardous waste sites.

Mineral mining installation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hauschopp, A.

1981-06-09

A plough for winning material in a longwall working is formed with guide surfaces which co-operate with a guide provided at the face-side of a longwall conveyor. The plough is driven by means of a chain passing round a pair of sprockets positioned at the ends of the conveyor at the goaf-side thereof. The plough is provided with a sword plate which passes underneath the conveyor, and the sword plate is provided with a coupling member for engaging the plough drive chain. The plough includes a plough body provided with cutters at one end thereof. The coupling member is setmore » back relative to said cutters by a sufficient distance to enable the plough to win material up to the appropriate end sprocket when the plough is moving in such a direction that said cutters are leading cutters.« less

The Alabama, U.S.A., seismic event and strata collapse of May 7, 1986

USGS Publications Warehouse

Long, L.T.; Copeland, C.W.

1989-01-01

On May 7, 1986, the residents of Tuscaloosa, Alabama, felt a seismic event of local magnitude 3.6 that occurred at the same time as a rock burst and roof collapse in an active longwall coal mine. Visual inspection of the seismograms reveals a deficiency in energy at frequencies above 20 Hz compared to tectonic earthquakes or surface blasts. The predominance of energy below 5 Hz may explain reports of body wave magnitudes (mb) greater than 4.2. Also, 1.0 Hz surface waves were more strongly excited than body waves and may explain local felt effects more typically associated with greater epicentral distances. All recorded first motions were dilatational. The concentration of stations in the northern hemisphere allows reverse motion on an east-trending near-vertical plane or strike-slip motion on northwest or southeast trending planes. The reverse focal mechanism is preferred, because the area of roof collapse and the area of active longwall mining are located between two east-striking loose vertical fracture zones. The characteristics of the seismic event suggest that it might have been sudden shear failure resulting from accumulated strain energy in overlying strata behind an active longwall. Although an alternate interpretation of the focal mechanism as an implosion or shear failure in the strata above previously mined out areas is also allowed by the first motion data, this alternate intepretation is not supported by geological data. ?? 1989 Birkha??user Verlag.

Hydrologic conditions and water-quality conditions following underground coal mining in the North Fork of the Right Fork of Miller Creek drainage basin, Carbon and Emery Counties, Utah, 2004-2005

USGS Publications Warehouse

Wilkowske, C.D.; Cillessen, J.L.; Brinton, P.N.

2007-01-01

In 2004 and 2005, the U.S. Geological Survey, in cooperation with the Bureau of Land Management, reassessed the hydrologic system in and around the drainage basin of the North Fork of the Right Fork (NFRF) of Miller Creek, in Carbon and Emery Counties, Utah. The reassessment occurred 13 years after cessation of underground coal mining that was performed beneath private land at shallow depths (30 to 880 feet) beneath the NFRF of Miller Creek. This study is a follow-up to a previous USGS study of the effects of underground coal mining on the hydrologic system in the area from 1988 to 1992. The previous study concluded that mining related subsidence had impacted the hydrologic system through the loss of streamflow over reaches of the perennial portion of the stream, and through a significant increase in dissolved solids in the stream. The previous study also reported that no substantial differences in spring-water quality resulted from longwall mining, and that no clear relationship between mining subsidence and spring discharge existed.During the summers of 2004 and 2005, the USGS measured discharge and collected water-quality samples from springs and surface water at various locations in the NFRF of Miller Creek drainage basin, and maintained a streamflow-gaging station in the NFRF of Miller Creek. This study also utilized data collected by Cyprus–Plateau Mining Corporation from 1992 through 2001.Of thirteen monitored springs, five have discharge levels that have not returned to those observed prior to August 1988, which is when longwall coal mining began beneath the NFRF of Miller Creek. Discharge at two of these five springs appears to fluctuate with wet and dry cycles and is currently low due to a drought that occurred from 1999–2004. Discharge at two other of the five springs did not increase with increased precipitation during the mid-1990s, as was observed at other monitored springs. This suggests that flowpaths to these springs may have been altered by land subsidence caused by underground coal mining. Analysis of possible impacts to the fifth spring were inconclusive due to a lack of data collected during the mid-1990s. Discharge at eight other monitored springs in the study area appears to be controlled mainly by climatic fluctuations and was generally near the value measured prior to 1988. Discharge at one of these eight springs is significantly greater than that measured during the longwall mining period. Concentrations of magnesium, calcium, sulfate, and dissolved solids at one undermined spring were elevated in relation to other springs in the study area. Dissolved solids concentration at this spring ranged from 539–709 milligrams per liter. Dissolved-solids concentration for all other springs in the study area ranged from 163 to 360 milligrams per liter and was near the median value measured prior to longwall mining beneath the NFRF of Miller Creek drainage basin.Baseflow measured at a streamflow-gaging station on the NFRF of Miller Creek located downstream of the mined area during the summer of 2004 was near 5 gallons per minute. Baseflow in 2005 increased to 7–8 gallons per minute, due to increased precipitation. This is slightly greater than the range of baseflow measured near the end of the longwall mining period which was approximately 3–5 gallons per minute.Seepage investigations carried out in the summer of 2004 and 2005 along the NFRF of Miller Creek showed a net loss of surface flow along the studied reach. Specific areas within the study reach had streamflow losses prior to longwall mining, however, the study reach as a whole was observed to gain in discharge when measured in 1986–1988, immediately before longwall mining began. The area where the greatest loss in discharge from the NFRF of Miller Creek occurred corresponds to an area where overburden (material overlying a deposit of useful geological materials or bedrock) is between 700 and 210 feet thick. Overburden thickness at the place where the streambed first dried up was approximately 600 feet thick. In 2004, approximately 1,600 ft of the streambed of the NFRF of Miller Creek was dry. Only 300 feet of the streambed was dry during the wetter year of 2005. Prior to longwall mining, no dry reaches were observed, though seepage loss was documented. Average discharge measured at a tributary to the NFRF of Miller Creek has increased from 1.6 gallons per minute measured during longwall mining to 7.2 gallons per minute measured in 2004–2005. During both years of this study, the lower reach of the stream regained flow from this tributary and from seepage gains.Water quality in the lower reach of the NFRF of Miller Creek downstream of the longwall-mined area, showed significantly higher concentrations of magnesium, calcium, sulfate, and strontium, in relation to water in the upper reach of the NFRF of Miller Creek and to the springs sampled in the area. Dissolved-solids concentration measured in the lower reach of the stream in 2004 and 2005 ranged from 1,880 to 2,220 milligrams per liter, while sulfate concentrations ranged from 1,090 to 1,320 mg/L. The maximum contaminant level for drinking water in the state of Utah for dissolved solids and sulfate is 2,000 and 1,000 mg/L respectively. Concentrations of these ions are slightly greater than those measured during and just following mining beneath the NFRF of Miller Creek drainage basin, but are significantly higher than those measured prior to mining. With the exception of strontium, dissolved metals concentrations in the NFRF of Miller Creek were similar to those measured in area springs. pH in the creek and at all spring sites was near neutral. Qualitative observations of the creek bottom suggest that mining-related activities have had little effect on vegetative growth.

Emotional eating and food intake after sadness and joy.

PubMed

van Strien, T; Cebolla, A; Etchemendy, E; Gutiérrez-Maldonado, J; Ferrer-García, M; Botella, C; Baños, R

2013-07-01

Do people with a high score on a scale for eating in response to negative emotions also show high food intake in response to positive emotions? We studied these effects in 60 female students that were preselected on the basis of extreme high or low scores on an emotional eating questionnaire. Using a between subject design we experimentally tested the difference in food intake following a mood induction designed to induce joy or sadness (the joy vs. sad mood condition). The high and low emotional eaters did not differ in their food intake, but emotional eating significantly moderated the relationship between mood condition and food intake. Whereas low emotional eaters ate similar amounts after the sad and after the joy mood condition, high emotional eaters ate significantly more after the sad mood condition than after the joy mood condition. A further finding was that a similar moderator effect for emotional eating was found for intake of sweet food but not for intake of salty food. These findings would suggest that eating in response to negative and to positive emotions refer to two different constructs. Copyright © 2013 Elsevier Ltd. All rights reserved.

Influence of Joyful Learning on Elementary School Students’ Attitudes Toward Science

NASA Astrophysics Data System (ADS)

Anggoro, S.; Sopandi, W.; Sholehuddin, M.

2017-02-01

This study investigated the effects of joyful learning approach on elementary school students’ attitudes toward science. The method used is quasy experiment with the participants were divided into two groups. Thirty three of 4th grade students volunteered as an experimental group, and the other forty two act as a control group. The data was collected by questionnaire that are given before and after the lesson, observation sheet, and interview. The effect of joyful learning on students’ attitude was obtained by determining the n-gain and independent t-test. Observation and interview results were used to triangulate and support the quantitative findings. The data showed that the gain scores of the experimental group students’ attitudes toward science were significantly higher than the gain scores of control group. In addition, the experimental group made significantly greater progress in their cognitive, affective and conative experiences. Interviews and observations indicated that their attitude toward science changed over the intervention. This indicated that joyful learning approach can enhance the elementary school students’ attitudes toward science. According to these findings, it can be concluded that joyful learning approach can be used as an alternative approach to improve student’s attitude toward science.

Operation of the Joy Flexible Conveyor Train at the Marissa Mine

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hill, J.C.

1994-12-31

We have had both successes and difficulties with the Joy FCT at Marissa mine. The successes are obvious, as are the difficulties, and both will require considerable effort to maintain and cure, respectively. We are committed to seeing the FCT successful at Marissa as we believe that continuous haulage is the new paradigm in underground section haulage, and we intend to be on the leading edge of the change. Also, as a wise man once said, Joy can fix anything, if you have enough money.

Maniac Talk - Dr. Aprille Joy Ericsson

NASA Image and Video Library

2014-06-25

Aprille Joy Ericsson Maniac Lecture, June 25, 2014 Dr. Aprille Joy Ericsson, Deputy to the Chief Technologist for the Applied Engineering and Technology Directorate, NASA Goddard Space Flight Center, presented a Maniac Talk entitled, "A Rocket Scientist grows up in Brooklyn (NY)." Aprille shared her journey of being in a Tom-girl growing up in the Bed-Sty Projects in Brooklyn (NY) with a budding interest in STEAM to becoming a Rocket Scientist for NASA. And the impact of watching men going to the moon and the ah-ha moments!

Can we share the joy of others? Empathic neural responses to distress vs joy

PubMed Central

Perry, Daniella; Hendler, Talma

2012-01-01

The neural bases of empathy have been examined mainly in the context of reacting to others’ distress, while almost no attention has been paid to the mechanisms by which we share others’ joy. Using functional magnetic resonance imaging, we demonstrated that the same neural network mediates judgment of the emotional state of the other in response to both negative and positive events through empathy-related structures, such as the medial prefrontal cortex (MPFC), the insula, the superior temporal sulcus (STS) and the inferior frontal gyrus (IFG). However, the responses of the MPFC, bilateral insula and the right IFG to negative experiences occurring to the other (but not to the self) were found to be much more intense than the responses to positive experiences, indicating that humans have a remarkable ability to share the distress of others, but may react less to the joy of others. PMID:22156723

Methane drainage with horizontal boreholes in advance of longwall mining: an analysis. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gabello, D.P.; Felts, L.L.; Hayoz, F.P.

1981-05-01

The US Department of Energy (DOE) Morgantown Energy Technology Center has implemented a comprehensive program to demonstrate the technical and economic viability of coalbed methane as an energy resource. The program is directed toward solution of technical and institutional problems impeding the recovery and use of large quantities of methane contained in the nation's minable and unminable coalbeds. Conducted in direct support of the DOE Methane Recovery from Coalbeds Project, this study analyzes the economic aspects of a horizontal borehole methane recovery system integrated as part of a longwall mine operation. It establishes relationships between methane selling price and annualmore » mine production, methane production rate, and the methane drainage system capital investment. Results are encouraging, indicating that an annual coal production increase of approximately eight percent would offset all associated drainage costs over the range of methane production rates and capital investments considered.« less

New technologies of mining stratal minerals and their computation

NASA Astrophysics Data System (ADS)

Beysembayev, K. M.; Reshetnikova, O. S.; Nokina, Z. N.; Teliman, I. V.; Asmagambet, D. K.

2018-03-01

The paper considers the systems of flat and volumetric modeling of controlling long-wall faces for schemes with rock collapse of the immediate and main roof and smooth lowering of the remaining layers, as well as in forming a vault over the face. Stress distributions are obtained for the reference pressure zone. They are needed for recognizing the active state of the long-wall face in the feedback mode. The project of the system “support - lateral rocks” is represented by a multidimensional network base. Its connections reflect the elements of the system or rocks, workings, supports with nodes and parts. The connections reflect the logic of the operation of machines, assemblies and parts, and the types of their mechanical connections. At the nodes of the base, there are built-in systems of object-oriented programming languages. This allows combining spatial elements of the system into a simple neural network.

[Dialogy of Laughter: a new concept introducing joy for health promotion based on dialogue, laughter, joy and the art of the clown].

PubMed

Matraca, Marcus Vinicius Campos; Wimmer, Gert; Araújo-Jorge, Tania Cremonini de

2011-10-01

The Dialogy of Laughter - a concept based upon the praxis of general health education performed with joy - is presented and discussed. Health is seen as a resource for life rather than a goal in life and promotion of health is a positive reaction leading to a broader, integrated and complex perception linking the environment, education, people, quality and style of life. Laughter can then be incorporated as a tool in health promotion as defended here. Considerations on dialogue, laughter, joy and the clown giving rise to the Dialogy of Laughter concept are presented. Dialogue, namely an exchange between two or more persons for the comprehension and transfer of ideas, is a methodology for joint thinking to produce new ideas and to share meaning, which is the essence of communication. Laughter is a universal phenomenon linked to aspects of culture, philosophy, history and health. It is dialogic, since through humor the comedy and the wit contained in each laugh, which is a communication code inherent to human nature, are revealed. Joy as a strategy for health promotion is highlighted and the art of the clown, using this art as an educational tool that can be integrated as a social technology, are adopted.

Emotional contagion and burnout among nurses and doctors: Do joy and anger from different sources of stakeholders matter?

PubMed

Petitta, Laura; Jiang, Lixin; Härtel, Charmine E J

2017-10-01

The present study adds novel knowledge to the literature on emotional contagion (EC), discrete emotions, job burnout, and the management of healthcare professionals by simultaneously considering EC as both a job demand and a job resource with multiple social pathways. Integrating EC into the job demands-resource model, we develop and test a conceptual model wherein multiple stakeholder sources of emotional exchanges (i.e., leaders, colleagues, patients) play a differential role in predicting caregivers' absorption of positive (i.e., joy) and negative (i.e., anger) emotions, and in turn, burnout. We tested this nomological network using structural equation modeling and invariance analyses on a sample of 252 nurses and 102 doctors from diverse healthcare wards in three Italian hospitals. Our findings show that not all emotional exchange sources contribute to the EC experience or likelihood of burnout. Specifically, we found that doctors absorbed joy and anger from their colleagues but not from their leaders or patients. In contrast, nurses absorbed joy and anger from leaders, colleagues, and patients. Surprisingly, we found that joy-absorbed and anger-absorbed were related to doctors' exhaustion and cynicism, but only to nurses' cynicism. We conclude with suggestions for advancing research and practice in the management of emotions for preventing burnout. Copyright © 2016 John Wiley & Sons, Ltd.

Chocolate eating in healthy men during experimentally induced sadness and joy.

PubMed

Macht, M; Roth, S; Ellgring, H

2002-10-01

The study compared influences of qualitatively different emotions on eating. Motivation to eat, affective responses to chocolate and chewing of chocolate were investigated in healthy normal weight males during experimentally induced emotions. Subjects abstained from eating 2 h (n = 24) or 8 h (n = 24) before testing. They received pieces of chocolate after viewing film clips presented to induce anger, fear, sadness and joy. Motivation to eat and most affective responses to eating chocolate were higher after 8 h than after 2 h of deprivation. Sadness and joy affected motivation to eat in opposite directions: joy increased and sadness decreased appetite (p < 0.001). In joy, a higher tendency to eat more chocolate was reported (p < 0.001), and chocolate tasted more pleasant (p < 0.001) and was experienced as more "stimulating" than in sadness (p < 0.01). No effects of deprivation could be found for chewing time and number of chews. Results indicate that the quality of emotions can affect motivation to eat and affective responses to eating chocolate. Our findings on decreased eating responses to sadness in healthy males and the contradictory increased eating responses to sadness reported by others supports two types of emotion-induced changes of eating: emotion-congruent modulation of eating and eating to regulate emotions. Copyright 2002 Elsevier Science Ltd.

Sequential Gaussian co-simulation of rate decline parameters of longwall gob gas ventholes.

PubMed

Karacan, C Özgen; Olea, Ricardo A

2013-04-01

Gob gas ventholes (GGVs) are used to control methane inflows into a longwall mining operation by capturing the gas within the overlying fractured strata before it enters the work environment. Using geostatistical co-simulation techniques, this paper maps the parameters of their rate decline behaviors across the study area, a longwall mine in the Northern Appalachian basin. Geostatistical gas-in-place (GIP) simulations were performed, using data from 64 exploration boreholes, and GIP data were mapped within the fractured zone of the study area. In addition, methane flowrates monitored from 10 GGVs were analyzed using decline curve analyses (DCA) techniques to determine parameters of decline rates. Surface elevation showed the most influence on methane production from GGVs and thus was used to investigate its relation with DCA parameters using correlation techniques on normal-scored data. Geostatistical analysis was pursued using sequential Gaussian co-simulation with surface elevation as the secondary variable and with DCA parameters as the primary variables. The primary DCA variables were effective percentage decline rate, rate at production start, rate at the beginning of forecast period, and production end duration. Co-simulation results were presented to visualize decline parameters at an area-wide scale. Wells located at lower elevations, i.e., at the bottom of valleys, tend to perform better in terms of their rate declines compared to those at higher elevations. These results were used to calculate drainage radii of GGVs using GIP realizations. The calculated drainage radii are close to ones predicted by pressure transient tests.

Sequential Gaussian co-simulation of rate decline parameters of longwall gob gas ventholes

USGS Publications Warehouse

Karacan, C. Özgen; Olea, Ricardo A.

2013-01-01

Gob gas ventholes (GGVs) are used to control methane inflows into a longwall mining operation by capturing the gas within the overlying fractured strata before it enters the work environment. Using geostatistical co-simulation techniques, this paper maps the parameters of their rate decline behaviors across the study area, a longwall mine in the Northern Appalachian basin. Geostatistical gas-in-place (GIP) simulations were performed, using data from 64 exploration boreholes, and GIP data were mapped within the fractured zone of the study area. In addition, methane flowrates monitored from 10 GGVs were analyzed using decline curve analyses (DCA) techniques to determine parameters of decline rates. Surface elevation showed the most influence on methane production from GGVs and thus was used to investigate its relation with DCA parameters using correlation techniques on normal-scored data. Geostatistical analysis was pursued using sequential Gaussian co-simulation with surface elevation as the secondary variable and with DCA parameters as the primary variables. The primary DCA variables were effective percentage decline rate, rate at production start, rate at the beginning of forecast period, and production end duration. Co-simulation results were presented to visualize decline parameters at an area-wide scale. Wells located at lower elevations, i.e., at the bottom of valleys, tend to perform better in terms of their rate declines compared to those at higher elevations. These results were used to calculate drainage radii of GGVs using GIP realizations. The calculated drainage radii are close to ones predicted by pressure transient tests.

Sequential Gaussian co-simulation of rate decline parameters of longwall gob gas ventholes

PubMed Central

Karacan, C.Özgen; Olea, Ricardo A.

2015-01-01

Gob gas ventholes (GGVs) are used to control methane inflows into a longwall mining operation by capturing the gas within the overlying fractured strata before it enters the work environment. Using geostatistical co-simulation techniques, this paper maps the parameters of their rate decline behaviors across the study area, a longwall mine in the Northern Appalachian basin. Geostatistical gas-in-place (GIP) simulations were performed, using data from 64 exploration boreholes, and GIP data were mapped within the fractured zone of the study area. In addition, methane flowrates monitored from 10 GGVs were analyzed using decline curve analyses (DCA) techniques to determine parameters of decline rates. Surface elevation showed the most influence on methane production from GGVs and thus was used to investigate its relation with DCA parameters using correlation techniques on normal-scored data. Geostatistical analysis was pursued using sequential Gaussian co-simulation with surface elevation as the secondary variable and with DCA parameters as the primary variables. The primary DCA variables were effective percentage decline rate, rate at production start, rate at the beginning of forecast period, and production end duration. Co-simulation results were presented to visualize decline parameters at an area-wide scale. Wells located at lower elevations, i.e., at the bottom of valleys, tend to perform better in terms of their rate declines compared to those at higher elevations. These results were used to calculate drainage radii of GGVs using GIP realizations. The calculated drainage radii are close to ones predicted by pressure transient tests. PMID:26190930

30 CFR 75.822 - Underground high-voltage longwall cables.

Code of Federal Regulations, 2011 CFR

2011-07-01

... be a type SHD cable with a center ground-check conductor no smaller than a No. 16 AWG stranded conductor. The cables must be MSHA accepted as flame-resistant under part 18 or approved under subpart K of...

30 CFR 75.822 - Underground high-voltage longwall cables.

Code of Federal Regulations, 2010 CFR

2010-07-01

... be a type SHD cable with a center ground-check conductor no smaller than a No. 16 AWG stranded conductor. The cables must be MSHA accepted as flame-resistant under part 18 or approved under subpart K of...

X-HALE: A Very Flexible UAV for Nonlinear Aeroelastic Tests

DTIC Science & Technology

2010-04-01

Theseus (right) showing large wing deflections (Courtesy NASA Dryden) Figure 2. Three different “Sensorcraft” configurations1 More...Shearer, C. M., Coupled Nonlinear Flight Dynamics, Aeroelasticity, and Control of Very Flexible Aircraft, Ph.D. thesis , The University of Michigan... Thesis , Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 2003. 24. Cesnik, C.E.S. and Ortega-Morales, M

Cutting Pattern Identification for Coal Mining Shearer through a Swarm Intelligence–Based Variable Translation Wavelet Neural Network

PubMed Central

Xu, Jing; Wang, Zhongbin; Tan, Chao; Liu, Xinhua

2018-01-01

As a sound signal has the advantages of non-contacted measurement, compact structure, and low power consumption, it has resulted in much attention in many fields. In this paper, the sound signal of the coal mining shearer is analyzed to realize the accurate online cutting pattern identification and guarantee the safety quality of the working face. The original acoustic signal is first collected through an industrial microphone and decomposed by adaptive ensemble empirical mode decomposition (EEMD). A 13-dimensional set composed by the normalized energy of each level is extracted as the feature vector in the next step. Then, a swarm intelligence optimization algorithm inspired by bat foraging behavior is applied to determine key parameters of the traditional variable translation wavelet neural network (VTWNN). Moreover, a disturbance coefficient is introduced into the basic bat algorithm (BA) to overcome the disadvantage of easily falling into local extremum and limited exploration ability. The VTWNN optimized by the modified BA (VTWNN-MBA) is used as the cutting pattern recognizer. Finally, a simulation example, with an accuracy of 95.25%, and a series of comparisons are conducted to prove the effectiveness and superiority of the proposed method. PMID:29382120

78 FR 31591 - Joy Global, Inc., Also Known as Joy Technologies, Inc., Including On-Site Leased Workers From All...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-24

... Manpower Franklin, Pennsylvania; Notice of Negative Determination on Reconsideration On December 6, 2012... and Manpower, Franklin, Pennsylvania (subject facility). The group eligibility requirements for... Trade Commission as a member of a [[Page 31592

Joy without demands: Hospital clowns in the world of ailing children

PubMed Central

Linge, Lotta

2011-01-01

The aim of the present study was to achieve, using an affect theory approach (Tomkins, 1962; 1963; 1991), a deeper theoretical understanding of the psychological significance of hospital clowns' work in caring for ailing children viewed from a care-giver perspective. The methodological approach was qualitative and based on 20 interviews with healthcare staff: 3 men and 17 women. The result showed how the staff emphasized a psychological quality of care alongside the physical quality of care. The hospital clowns' “unexpected possibility” provided a safe area for recovery, for both the children and the staff. The theoretical interpretation showed the presence of the affects surprise/startle, interest/excitement, and enjoyment/joy as well as specifically how “joy without demands” often had a lingering effect in the form of vitality. Joy without demands is discussed in relation to psychological theory with emphasis on: a confirmation of the body's possibilities, a magical attachment, a chance to transcend boundaries, and a non-demanding situation. PMID:21394247

30 CFR 57.22213 - Air flow (III mines).

Code of Federal Regulations, 2013 CFR

2013-07-01

... nearest the face, shall be at least 6,000 cubic feet per minute, or 9,000 cubic feet per minute in longwall and continuous miner sections. The quantity of air across each face at a work place shall be at...

30 CFR 57.22213 - Air flow (III mines).

Code of Federal Regulations, 2011 CFR

2011-07-01

... nearest the face, shall be at least 6,000 cubic feet per minute, or 9,000 cubic feet per minute in longwall and continuous miner sections. The quantity of air across each face at a work place shall be at...

Joy Development Properties, LLC, Pleasant Valley, Iowa and Summit Concrete, Inc., LeClaire, Iowa - Clean Water Act Public Notice

EPA Pesticide Factsheets

The EPA is providing notice of a proposed Administrative Penalty Assessment against Joy Development Properties, LLC and Summit Concrete, Inc., for alleged violations at the companies’ residential construction site known as the Schutter Farms Addition loca

Joyful Leadership in Practice

ERIC Educational Resources Information Center

Cunningham, Katie Egan; Rainville, Kristin N.

2018-01-01

Happiness leads to greater success and higher achievement, so it makes sense to infuse joy into school leadership to create positive results. Cunningham and Rainville offer up four key pieces of advice to school leaders on how to incorporate gratitude, compassion, and empathy into their leadership practice and, as a result, transform school…

Camp Joy: Embracing Diversity.

ERIC Educational Resources Information Center

Krehbiel, Amy

2001-01-01

Camp Joy (Ohio) offers a racially integrated program to disadvantaged inner-city foster children. To attract quality minority staff, the camp recruits through former campers, word of mouth, a leader-in-training program, job and internship fairs, and networking with nearby colleges and social agencies. Staff training and the intrinsic rewards of…

Teaching and Joy.

ERIC Educational Resources Information Center

Sornson, Robert, Ed.; Scott, James, Ed.

This publication is a collection of 25 personal stories from a multitude of perspectives on the joys of teaching and learning. The stories emphasize active learning; respect for differences; creativity; willingness to make mistakes; a love of life, school, and family relationships; and the quest for personal meaning. The stories are: (1) "Richard"…

Alternative World Scenarios for Strategic Planning

DTIC Science & Technology

1988-01-20

STRATEGIC STUDIES INSTITUTE U.S. ARMY WAR COLLEGE CARLISLE BARRACKS, PENNSYLVANIA 17013-5050 20 JANUARY 198 ACN 81001 Lfl 0ALTERNATIVE WORLD...Howard D. Graves STRATEGIC STUDIES INSTITUTE Director Colonel Thomas R. Stone Author Charles W. Tayloi Editor Marianne P. Cowling Secretary Shirley A...Shearer STRATEGIC STUDIES INSTITUTE U.S. ARMY WAR COLLEGE Carlisle Barracks, Pennsylvania 17013-5050 20 January 1988 ACN 88001 4e 4’ ALTERNATIVE

Characteristics of Swarm Seismicity in Northern California

NASA Astrophysics Data System (ADS)

Chiorini, S.; Lekic, V.

2017-12-01

Seismic swarms are characterized by an anomalously large number of earthquakes compared to the background rate of seismicity that are tightly clustered in space (typically, one to tens of kilometers) and time (typically, days to weeks). However, why and how swarms occur is poorly understood, partly because of the difficulty of identifying the range of swarm behaviors within large seismic catalogs. Previous studies have found that swarms, compared to other earthquake sequences, appear to be more common in extensional (Vidale & Shearer, 2006) and volcanic settings (Hayashi & Morita, 2003). In addition, swarms more commonly exhibit migration patterns, consistent with either fluid diffusion (Chen & Shearer, 2011; Chen et al., 2012) or aseismic creep (Lohman & McGuire, 2007), and are preferentially found in areas of enhanced heat flow (Enescu, 2009; Zaliapin & Ben Zion, 2016). While the swarm seismicity of Southern California has been studied extensively, that of Northern California has not been systematically documented and characterized. We employed two complementary methods of swarm identification: the approach of Vidale and Shearer (2006; henceforth VS2006) based on a priori threshold distances and timings of quakes, and the spatio-temporal distance metric proposed by Zaliapin et al. (2008; henceforth Z2008) in order to build a complete catalog of swarm seismicity in Northern California spanning 1984-2016 (Waldhauser & Schaff, 2008). Once filtered for aftershocks, the catalog allows us to describe the main features of swarm seismicity in Northern California, including spatial distribution, association or lack thereof with known faults and volcanic systems, and seismically quiescent regions. We then apply a robust technique to characterize the morphology of swarms, leading to subsets of swarms that are oriented either vertically or horizontally in space. When mapped, vertical swarms show a significant association with volcanic regions, and horizontal swarms with tectonic and volcanic settings. Finally, we demonstrate some swarms underlie areas that are typically quiescent, like Redding and the Sutter Buttes. Our catalog presents a more complete snapshot of the diversity of swarm characteristics in Northern California, and motivates further study of their relationship to tectonic and volcanic processes.

Possibilities of Effective Inertisation of Self-Heating Places in Goaf of Longwall in Hard Coal Mines

NASA Astrophysics Data System (ADS)

Szlązak, Nikodem; Piergies, Kazimierz

2016-12-01

Underground fires in coal mines belong to the most common hazards, the exposure to which frequently requires long term and costly rescue operations. It is mainly connected with the specific character of underground excavations which have limited volume. This makes the maximum permissible concentration of harmful gases rapidly exceeded and may also cause changes in air flow direction. The most certain way of improving a safety situation in Polish coal mining industry is taking early prevention steps. One of the prevention methods is inertisation of the atmosphere in longwall goaf. These activities rely on partial or total replacement of air or combustible atmosphere by inert gas. Thanks to them the risk of spontaneous fires hazard and gas explosion decreases. The main reason for the use of inert gases is to reduce the oxygen content to a limit which prevents further development of fire. This article presents methods for assessing inert gas to replace oxygen in the atmosphere in goaf.

GATEWAY Demonstrations: OLED Lighting in the Offices of DeJoy, Knauf & Blood, LLP

DOE Office of Scientific and Technical Information (OSTI.GOV)

Miller, Naomi J.

At the offices of the accounting firm of DeJoy, Knauf & Blood, LLP in Rochester, NY, the GATEWAY program evaluated a new lighting system that incorporates a number of different OLED luminaires. Evaluation of the OLED products included efficacy performance, field measurements of panel color, flicker measurements, and staff feedback.

Point of View--Political Glitches

ERIC Educational Resources Information Center

Shaw, Robert

2004-01-01

Students in Mr. Shaw's classes used to be free to discover the joy of reading books of their own choosing. But that kind of spontaneity is vanishing under No Child Left Behind. This article describes the classroom library Mr. Shaw has built throughout the years and the joy it has brought to his students and their learning.

Joyfully Map Social Dynamics When Designing Web-Based Courses

ERIC Educational Resources Information Center

Ahamer, Gilbert

2013-01-01

This paper provides a concept and a notation for optimizing the design of social processes in gaming and learning for individuals, groups of individuals and society as a whole. Traditional approaches to the mapping and designing of the emerging social dynamics in a joyful, social education setting have fallen short of producing desirable results…

The Menstrual Joy Questionnaire Items Alone Can Positively Prime Reporting of Menstrual Attitudes and Symptoms

ERIC Educational Resources Information Center

Aubeeluck, Aimee; Maguire, Moira

2002-01-01

Chrisler, Johnston, Champagne, and Preston (1994) reported that the title of the Menstrual Joy Questionnaire (MJQ) could prime participants to report positive changes on the Menstrual Distress Questionnaire (MDQ) and greater endorsement of "menstruation as a natural event" on the Menstrual Attitudes Questionnaire (MAQ). This study is a…

Finding More Joy in Teaching Children

ERIC Educational Resources Information Center

Baumgartner, Jennifer J.; DiCarlo, Cynthia F.; Apavaloaie, Loredana

2011-01-01

Early childhood professionals are familiar with finding and appreciating daily moments of joy. Teachers smile inside and out when toddlers are able to pull up their own pants, preschoolers write their names for the first time, or kindergarteners figure out how to make complicated patterns with blocks. Working with young children can also be very…

30 CFR 75.1002 - Installation of electric equipment and conductors; permissibility.

Code of Federal Regulations, 2010 CFR

2010-07-01

... conductors; permissibility. 75.1002 Section 75.1002 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION... Wires and Trolley Feeder Wires § 75.1002 Installation of electric equipment and conductors... equipment is located within 150 feet of pillar workings or longwall faces. (b) Electric conductors and...

30 CFR 75.1002 - Installation of electric equipment and conductors; permissibility.

Code of Federal Regulations, 2011 CFR

2011-07-01

... conductors; permissibility. 75.1002 Section 75.1002 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION... Wires and Trolley Feeder Wires § 75.1002 Installation of electric equipment and conductors... equipment is located within 150 feet of pillar workings or longwall faces. (b) Electric conductors and...

30 CFR 75.342 - Methane monitors.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Methane monitors. 75.342 Section 75.342 Mineral... SAFETY STANDARDS-UNDERGROUND COAL MINES Ventilation § 75.342 Methane monitors. (a)(1) MSHA approved methane monitors shall be installed on all face cutting machines, continuous miners, longwall face...

30 CFR 75.1002 - Installation of electric equipment and conductors; permissibility.

Code of Federal Regulations, 2012 CFR

2012-07-01

... faces must be— (1) Shielded high-voltage cables supplying power to permissible longwall equipment; (2... intrinsically safe circuits; and (4) Cables and conductors supplying power to low- and medium-voltage permissible equipment. (5) Shielded high-voltage cables supplying power to permissible continuous mining...

30 CFR 75.1002 - Installation of electric equipment and conductors; permissibility.

Code of Federal Regulations, 2013 CFR

2013-07-01

... faces must be— (1) Shielded high-voltage cables supplying power to permissible longwall equipment; (2... intrinsically safe circuits; and (4) Cables and conductors supplying power to low- and medium-voltage permissible equipment. (5) Shielded high-voltage cables supplying power to permissible continuous mining...

30 CFR 75.1002 - Installation of electric equipment and conductors; permissibility.

Code of Federal Regulations, 2014 CFR

2014-07-01

... faces must be— (1) Shielded high-voltage cables supplying power to permissible longwall equipment; (2... intrinsically safe circuits; and (4) Cables and conductors supplying power to low- and medium-voltage permissible equipment. (5) Shielded high-voltage cables supplying power to permissible continuous mining...

30 CFR 75.819 - Motor-starter enclosures; barriers and interlocks.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Motor-starter enclosures; barriers and...-Voltage Distribution High-Voltage Longwalls § 75.819 Motor-starter enclosures; barriers and interlocks. Compartment separation and cover interlock switches for motor-starter enclosures must be maintained in...

30 CFR 75.823 - Scope.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Scope. 75.823 Section 75.823 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Underground High-Voltage Distribution High-Voltage Longwalls § 75.823 Scope...

30 CFR 75.342 - Methane monitors.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Methane monitors. 75.342 Section 75.342 Mineral... SAFETY STANDARDS-UNDERGROUND COAL MINES Ventilation § 75.342 Methane monitors. (a)(1) MSHA approved methane monitors shall be installed on all face cutting machines, continuous miners, longwall face...

Geostatistical modeling of the gas emission zone and its in-place gas content for Pittsburgh-seam mines using sequential Gaussian simulation

USGS Publications Warehouse

Karacan, C.O.; Olea, R.A.; Goodman, G.

2012-01-01

Determination of the size of the gas emission zone, the locations of gas sources within, and especially the amount of gas retained in those zones is one of the most important steps for designing a successful methane control strategy and an efficient ventilation system in longwall coal mining. The formation of the gas emission zone and the potential amount of gas-in-place (GIP) that might be available for migration into a mine are factors of local geology and rock properties that usually show spatial variability in continuity and may also show geometric anisotropy. Geostatistical methods are used here for modeling and prediction of gas amounts and for assessing their associated uncertainty in gas emission zones of longwall mines for methane control.This study used core data obtained from 276 vertical exploration boreholes drilled from the surface to the bottom of the Pittsburgh coal seam in a mining district in the Northern Appalachian basin. After identifying important coal and non-coal layers for the gas emission zone, univariate statistical and semivariogram analyses were conducted for data from different formations to define the distribution and continuity of various attributes. Sequential simulations performed stochastic assessment of these attributes, such as gas content, strata thickness, and strata displacement. These analyses were followed by calculations of gas-in-place and their uncertainties in the Pittsburgh seam caved zone and fractured zone of longwall mines in this mining district. Grid blanking was used to isolate the volume over the actual panels from the entire modeled district and to calculate gas amounts that were directly related to the emissions in longwall mines.Results indicated that gas-in-place in the Pittsburgh seam, in the caved zone and in the fractured zone, as well as displacements in major rock units, showed spatial correlations that could be modeled and estimated using geostatistical methods. This study showed that GIP volumes may change up to 3. MMscf per acre and, in a multi-panel district, may total 9. Bcf of methane within the gas emission zone. Therefore, ventilation and gas capture systems should be designed accordingly. In addition, rock displacements within the gas emission zone are spatially distributed. From an engineering and practical point of view, spatial distributions of GIP and distributions of rock displacements should be correlated with in-mine emissions and gob gas venthole productions. ?? 2011.

Geostatistical modeling of the gas emission zone and its in-place gas content for Pittsburgh-seam mines using sequential Gaussian simulation

PubMed Central

Karacan, C. Özgen; Olea, Ricardo A.; Goodman, Gerrit

2015-01-01

Determination of the size of the gas emission zone, the locations of gas sources within, and especially the amount of gas retained in those zones is one of the most important steps for designing a successful methane control strategy and an efficient ventilation system in longwall coal mining. The formation of the gas emission zone and the potential amount of gas-in-place (GIP) that might be available for migration into a mine are factors of local geology and rock properties that usually show spatial variability in continuity and may also show geometric anisotropy. Geostatistical methods are used here for modeling and prediction of gas amounts and for assessing their associated uncertainty in gas emission zones of longwall mines for methane control. This study used core data obtained from 276 vertical exploration boreholes drilled from the surface to the bottom of the Pittsburgh coal seam in a mining district in the Northern Appalachian basin. After identifying important coal and non-coal layers for the gas emission zone, univariate statistical and semivariogram analyses were conducted for data from different formations to define the distribution and continuity of various attributes. Sequential simulations performed stochastic assessment of these attributes, such as gas content, strata thickness, and strata displacement. These analyses were followed by calculations of gas-in-place and their uncertainties in the Pittsburgh seam caved zone and fractured zone of longwall mines in this mining district. Grid blanking was used to isolate the volume over the actual panels from the entire modeled district and to calculate gas amounts that were directly related to the emissions in longwall mines. Results indicated that gas-in-place in the Pittsburgh seam, in the caved zone and in the fractured zone, as well as displacements in major rock units, showed spatial correlations that could be modeled and estimated using geostatistical methods. This study showed that GIP volumes may change up to 3 MMscf per acre and, in a multi-panel district, may total 9 Bcf of methane within the gas emission zone. Therefore, ventilation and gas capture systems should be designed accordingly. In addition, rock displacements within the gas emission zone are spatially distributed. From an engineering and practical point of view, spatial distributions of GIP and distributions of rock displacements should be correlated with in-mine emissions and gob gas venthole productions. PMID:26435558

On English Speakers' Ability to Communicate Emotion in Mandarin

ERIC Educational Resources Information Center

Jian, Hua-Li

2015-01-01

The ability of Mandarin learners to express emotion in Mandarin has received little attention. This study examines how English L1 users express emotions in Mandarin and how this expression differs from that of Mandarin L1 users. Scenarios were adopted to elicit joy, anger, sadness, fear, and neutrality. Both groups articulated anger, joy, and fear…

The New System for Success

ERIC Educational Resources Information Center

Olson, Cathy Applefeld

2012-01-01

The most ambitious of music teachers seek not only to educate their students about notes and chords, but also to instill in them the transcendent joy of making music. That joy is abundant in Venezuela, where the El Sistema national music education program has been a boon to the country's cultural growth and has created a climate of positive social…

Legitimate, Expert and Referent Power in Physical Education

ERIC Educational Resources Information Center

Lyngstad, Idar

2017-01-01

Physical Education (PE) in school aims to help pupils experience the joy of movement through various forms of physical activity and to acquire a positive attitude to physical activity and exercise. The teacher's task is to mediate the joy of movement and instil a positive attitude to exercise in the pupils. Drawing on the methodology of van Manen…

Dealing with Laughter and Ridicule in Adolescence: Relations with Bullying and Emotional Responses

ERIC Educational Resources Information Center

Proyer, René T.; Meier, Lukas E.; Platt, Tracey; Ruch, Willibald

2013-01-01

We investigated the fear of being laughed at (gelotophobia), the joy in being laughed at (gelotophilia), and the joy in laughing at others (katagelasticism) in adolescent students (N = 324, 13-15 years). Gelotophobia was associated primarily with the victim and katagelasticism with the bully-role (self-and peer reports). Gelotophobia correlated…

Teaching for Joy and Justice: Re-Imagining the Language Arts Classroom

ERIC Educational Resources Information Center

Christensen, Linda

2009-01-01

"Teaching for Joy and Justice" is the much-anticipated sequel to Linda Christensen's bestselling, "Reading, Writing, and Rising Up." Christensen is recognized as one of the country's finest teachers. Her latest book shows why. Through story upon story, Christensen demonstrates how she draws on students' lives and the world to teach poetry, essay,…

Anarchist, Neoliberal, & Democratic Decision-Making: Deepening the Joy in Learning and Teaching

ERIC Educational Resources Information Center

Briscoe, Felecia M.

2012-01-01

Using a critical postmodern framework, this article analyzes the relationship of the decision-making processes of anarchism and neoliberalism to that of deep democracy. Anarchist processes are found to share common core principals with deep democracy; but neoliberal processes are found to be antithetical to deep democracy. To increase the joy in…

Valence of Affective Verbal Fluency: fMRI Studies on Neural Organization of Emotional Concepts "Joy" and "Fear"

ERIC Educational Resources Information Center

Gawda, Barbara; Szepietowska, Ewa; Soluch, Pawel; Wolak, Tomasz

2017-01-01

The present study was designed to examine the underlying brain mechanisms of positive and negative emotional verbal fluency. Three verbal fluency tasks (one non-emotional phonemic task, two emotional tasks: "Joy" and "Fear") were used in this study. The results were analyzed for 35 healthy, Polish-speaking, right-handed adults…

GATEWAY Report Brief: Evaluating OLED Lighting in the Accounting Office of DeJoy, Knauf & Blood LLP

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

Summary of GATEWAY report evaluating a new lighting system, at the offices of the accounting firm of DeJoy, Knauf & Blood, LLP in Rochester, NY, that incorporates a number of different OLED luminaires. Evaluation of the OLED products included efficacy performance, field measurements of panel color, flicker measurements, and staff feedback.

Personal Choices of Kibbutz Children in Simulated Situations of Distress and Joy.

ERIC Educational Resources Information Center

Kaffman, Mordecai; And Others

1980-01-01

Kibbutz children (N=998) aged 3 to 10 years were asked to indicate their personal choices in response to a projective test depicting a child in situations of distress and joy. Children selected their own parents as the most significant choice in all age groups, irrespective of communal or family type of sleeping arrangement. (Author)

Wounded by School: Recapturing the Joy in Learning and Standing up to Old School Culture

ERIC Educational Resources Information Center

Olson, Kirsten

2009-01-01

While reformers and policymakers focus on achievement gaps, testing, and accountability, millions of students mentally and emotionally disengage from learning and many gifted teachers leave the field. Ironically, today's schooling is damaging the single most essential component to education--the joy of learning. How do we recognize the "wounds"…

Valence State Partitioning of Cr and V Between Pyroxene - Melt: Estimates of Oxygen Fugacity for Martian Basalt QUE 94201

NASA Technical Reports Server (NTRS)

Karner, J. M.; Papike, J. J.; Shearer, C. K.; McKay, G.; Le, L.; Burger, P.

2007-01-01

Several studies, using different oxybarometers, have suggested that the variation of fO2 in martian basalts spans about 3 log units from approx. IW-1 to IW+2. The relatively oxidized basalts (e.g., pyroxene-phyric Shergotty) are enriched in incompatible elements, while the relatively reduced basalts (e.g., olivine-phyric Y980459) are depleted in incompatible elements. A popular interpretation of the above observations is that the martian mantle contains two reservoirs; 1) oxidized and enriched, and 2) reduced and depleted. The basalts are thus thought to represent mixing between these two reservoirs. Recently, Shearer et al. determined the fO2 of primitive olivine-phyric basalt Y980459 to be IW+0.9 using the partitioning of V between olivine and melt. In applying this technique to other basalts, Shearer et al. concluded that the martian mantle shergottite source was depleted and varied only slightly in fO2 (IW to IW+1). Thus the more oxidized, enriched basalts had assimilated a crustal component on their path to the martian surface. In this study we attempt to address the above debate on martian mantle fO2 using the partitioning of Cr and V into pyroxene in pyroxene-phyric basalt QUE 94201.

30 CFR 75.826 - High-voltage trailing cables.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false High-voltage trailing cables. 75.826 Section 75...-Voltage Longwalls § 75.826 High-voltage trailing cables. High-voltage trailing cables must: (a) Meet existing trailing cable requirements and the approval requirements of the high-voltage continuous mining...

30 CFR 75.833 - Handling high-voltage trailing cables.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Handling high-voltage trailing cables. 75.833... High-Voltage Longwalls § 75.833 Handling high-voltage trailing cables. (a) Cable handling. (1) Miners must not handle energized trailing cables unless they are wearing high-voltage insulating gloves, which...

78 FR 35933 - Agency Forms Undergoing Paperwork Reduction Act Review

Federal Register 2010, 2011, 2012, 2013, 2014

2013-06-14

... collection strategies, including self- report pre-and post-test instruments for assessing trainee reaction.... Knowledge Test. Mine Escape/Continuous Mining Pre/Post-Training 30 1 6/60 participants. Knowledge Test. Mine Rescue/Longwall Mining Pre/Post-Training 30 1 6/60 participants. Knowledge Test. Mine Rescue/Continuous...

30 CFR 75.222 - Roof control plan-approval criteria.

Code of Federal Regulations, 2014 CFR

2014-07-01

... systems. (1) Systematic supplemental support should be installed throughout— (i) The tailgate entry of the first longwall panel prior to any mining; and (ii) In the proposed tailgate entry of each subsequent... should address— (i) Notification of miners that the travelway is blocked; (ii) Re-instruction of miners...

30 CFR 75.222 - Roof control plan-approval criteria.

Code of Federal Regulations, 2012 CFR

2012-07-01

... systems. (1) Systematic supplemental support should be installed throughout— (i) The tailgate entry of the first longwall panel prior to any mining; and (ii) In the proposed tailgate entry of each subsequent... should address— (i) Notification of miners that the travelway is blocked; (ii) Re-instruction of miners...

30 CFR 75.222 - Roof control plan-approval criteria.

Code of Federal Regulations, 2013 CFR

2013-07-01

... systems. (1) Systematic supplemental support should be installed throughout— (i) The tailgate entry of the first longwall panel prior to any mining; and (ii) In the proposed tailgate entry of each subsequent... should address— (i) Notification of miners that the travelway is blocked; (ii) Re-instruction of miners...

30 CFR 57.22308 - Methane monitors (III mines).

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Methane monitors (III mines). 57.22308 Section... Standards for Methane in Metal and Nonmetal Mines Equipment § 57.22308 Methane monitors (III mines). (a) Methane monitors shall be installed on continuous mining machines and longwall mining systems. (b) The...

30 CFR 57.22308 - Methane monitors (III mines).

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Methane monitors (III mines). 57.22308 Section... Standards for Methane in Metal and Nonmetal Mines Equipment § 57.22308 Methane monitors (III mines). (a) Methane monitors shall be installed on continuous mining machines and longwall mining systems. (b) The...

A Pathway to Joy in Our Work: Spirituality in the Academy

ERIC Educational Resources Information Center

Groen, Janet

2015-01-01

The author of this article reflects on the question of how academics can increase the joyful and holistic nature of their work, in other words, how to shift from disenchantment to enchantment in the academy. The author argues that this shift is cultivated daily, not only in the "action" and "doing" portion of their work but in…

78 FR 43227 - Meeting of the Public Safety Officer Medal of Valor Review Board

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-19

... those advisory functions specified in 42 U.S.C. 15202. Pursuant to 42 U.S.C. 15201, the President of the... must register at least seven (7) days in advance of the meeting/conference call by contacting Mr. Joy... accommodations should contact Mr. Joy at least seven (7) days in advance of the meeting. Please submit any...

Ten Theses of the Joy of Learning at Primary Schools

ERIC Educational Resources Information Center

Rantala, Taina; Maatta, Kaarina

2012-01-01

The aim of this paper is to decipher the essence of the joy of learning and the ways to enhance it at school. In the field of educational psychology, research on feelings is lacking, and the little that does exist has focused more on negative rather than positive feelings. The present paper is based on ethnographic and observational research of a…

Joys of Community Ensemble Playing: The Case of the Happy Roll Elastic Ensemble in Taiwan

ERIC Educational Resources Information Center

Hsieh, Yuan-Mei; Kao, Kai-Chi

2012-01-01

The Happy Roll Elastic Ensemble (HREE) is a community music ensemble supported by Tainan Culture Centre in Taiwan. With enjoyment and friendship as its primary goals, it aims to facilitate the joys of ensemble playing and the spirit of social networking. This article highlights the key aspects of HREE's development in its first two years…

Reclaiming Joy: Pilot Evaluation of a Mental Health Peer Support Program for Older Adults Who Receive Medicaid

ERIC Educational Resources Information Center

Chapin, Rosemary K.; Sergeant, Julie F.; Landry, Sarah; Leedahl, Skye N.; Rachlin, Roxanne; Koenig, Terry; Graham, Annette

2013-01-01

Purpose: Stigma and lack of access to providers create barriers to mental health treatment for older adults living in the community. In order to address these barriers, we developed and evaluated a peer support intervention for older adults receiving Medicaid services. Design and Methods: Reclaiming Joy is a mental health intervention that pairs…

Instructional Constraints Faced by Learners with Muscular Dystrophy: A Case of Joytown Special Primary School, Thika, Kenya

ERIC Educational Resources Information Center

Wang'ang'a, Annrose Wanjiku; Wamocho, Franciscah Irangi; Kioy, Paul

2015-01-01

The purpose of this study was to investigate the instructional constraints facing learners with muscular dystrophy in Joy Town special primary school, Thika, Kenya. Descriptive design was used for this study. The target population were all the 20 learners suffering from muscular dystrophy from S.A Joy Town Special Primary School. The total target…

Brain activations during judgments of positive self-conscious emotion and positive basic emotion: pride and joy.

PubMed

Takahashi, Hidehiko; Matsuura, Masato; Koeda, Michihiko; Yahata, Noriaki; Suhara, Tetsuya; Kato, Motoichiro; Okubo, Yoshiro

2008-04-01

We aimed to investigate the neural correlates associated with judgments of a positive self-conscious emotion, pride, and elucidate the difference between pride and a basic positive emotion, joy, at the neural basis level using functional magnetic resonance imaging. Study of the neural basis associated with pride might contribute to a better understanding of the pride-related behaviors observed in neuropsychiatric disorders. Sixteen healthy volunteers were studied. The participants read sentences expressing joy or pride contents during the scans. Pride conditions activated the right posterior superior temporal sulcus and left temporal pole, the regions implicated in the neural substrate of social cognition or theory of mind. However, against our prediction, we did not find brain activation in the medial prefrontal cortex, a region responsible for inferring others' intention or self-reflection. Joy condition produced activations in the ventral striatum and insula/operculum, the key nodes of processing of hedonic or appetitive stimuli. Our results support the idea that pride is a self-conscious emotion, requiring the ability to detect the intention of others. At the same time, judgment of pride might require less self-reflection compared with those of negative self-conscious emotions such as guilt or embarrassment.

Developing Regionalized Models of Lithospheric Thickness and Velocity Structure Across Eurasia and the Middle East from Jointly Inverting P-Wave and S-Wave Receiver Functions with Rayleigh Wave Group and Phase Velocities

DTIC Science & Technology

2011-09-01

modeling of regional waveforms at station ANTO , in UNIFIED region #14. The velocity models (left) and the corresponding predictions (middle and right) are...models, Geophy. J. Int. 118: 245–254. Rychert, C. A. and P. M. Shearer (2009). A global view of the lithosphere-asthenosphere boundary, Science 324 : 495

Using "The Joy Luck Club" to Teach Core Standards and 21st Century Literacies

ERIC Educational Resources Information Center

Burns, Leslie David; Botzakis, Stergios G.

2012-01-01

In this article the authors illustrate an instructional unit based on a Common Core grades 9-10 illustrative text--Amy Tan's "Two Kinds" from "The Joy Luck Club." They demonstrate how teachers can meet the new standards "and" respond to students' 21st-century needs by using this modern classic along with other traditional and new media resources.…

Laugh and Smile upon the Holy Quran: The Study of Analytical Objectivities

ERIC Educational Resources Information Center

al-Domi, Mohammad Mahmoud

2015-01-01

This study aims to examine the positive impact of The Holy Quran based on the laugh and smile. This kind of derivatives in which context of praise, expression the feeling of happiness and joyful in the positive senses. Everyone needs to relieve his heart so that happiness and joy on their faces can be seen. Laughter also are some of attribute…

30 CFR 75.827 - Guarding of trailing cables.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Guarding of trailing cables. 75.827 Section 75.827 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND...-Voltage Longwalls § 75.827 Guarding of trailing cables. (a) Guarding. (1) The high-voltage cable must be...

30 CFR 75.828 - Trailing cable pulling.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Trailing cable pulling. 75.828 Section 75.828... Longwalls § 75.828 Trailing cable pulling. The trailing cable must be de-energized prior to being pulled by... procedures must be followed when pulling the trailing cable with equipment other than the continuous mining...

78 FR 12756 - Proposed Data Collections Submitted for Public Comment and Recommendations

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-25

... strategies, including self- report pre-and post-test instruments for assessing trainee reaction and measuring... Knowledge Test. Mine Escape/Continuous Mining Pre/Post- 30 1 6/60 3 participants. Training Knowledge Test. Mine Rescue/Longwall Mining Pre/Post- 30 1 6/60 3 participants. Training Knowledge Test. Mine Rescue...

30 CFR 75.384 - Longwall and shortwall travelways.

Code of Federal Regulations, 2010 CFR

2010-07-01

... most direct and safe practical route to a designated escapeway. (b) The route of travel shall be clearly marked. (c) When a roof fall or other blockage occurs that prevents travel in the travelway— (1... safe area outby the section loading point; and (3) MSHA shall be notified. (d) Work may resume on the...

30 CFR 57.22306 - Methane monitors (I-A mines).

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Methane monitors (I-A mines). 57.22306 Section... Standards for Methane in Metal and Nonmetal Mines Equipment § 57.22306 Methane monitors (I-A mines). (a) Methane monitors shall be installed on continuous mining machines, longwall mining systems, and on loading...

30 CFR 57.22307 - Methane monitors (II-A mines).

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Methane monitors (II-A mines). 57.22307 Section... Standards for Methane in Metal and Nonmetal Mines Equipment § 57.22307 Methane monitors (II-A mines). (a) Methane monitors shall be installed on continuous mining machines, longwall mining systems, bench and face...

30 CFR 57.22306 - Methane monitors (I-A mines).

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Methane monitors (I-A mines). 57.22306 Section... Standards for Methane in Metal and Nonmetal Mines Equipment § 57.22306 Methane monitors (I-A mines). (a) Methane monitors shall be installed on continuous mining machines, longwall mining systems, and on loading...

30 CFR 57.22307 - Methane monitors (II-A mines).

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Methane monitors (II-A mines). 57.22307 Section... Standards for Methane in Metal and Nonmetal Mines Equipment § 57.22307 Methane monitors (II-A mines). (a) Methane monitors shall be installed on continuous mining machines, longwall mining systems, bench and face...

The peculiarities of structurizing enclosing rock massif while developing a coal seam

NASA Astrophysics Data System (ADS)

Kozyreva, E. N.; Shinkevich, M. V.

2017-09-01

Different concepts of the development of geo-mechanical processes during longwall mining of a seam which are fundamentally different from the conventional ones are introduced in the article. Fundamental principles of the model for structurizing enclosing rock mass while longwall mining along the strike are described. The model was developed on the bases of non-linear geomechanical laws. According to the model, rock mass in the area of mining operation is organized as rock geomechanical layers with shifting arches. And the formation period of shifting arches in disintegrated rock mass is divisible by the length of the stope. Undulate characteristic of a massif as a peculiarity of man-made structurization of a massif is defined. It is shown that structuring the broken massif causes the formation of block-structured system and it can be detected while monitoring the ground pressure in powered support props. The results of the research allow decreasing the negative influence of a ground pressure and can be applied to specify parameters for controlling the roof, defining geometrical dimensions of a mining section and positioning of holing chute (face entry).

Large-Strain Monitoring Above a Longwall Coal Mine With GPS and Seismic Measurements

NASA Astrophysics Data System (ADS)

Swanson, P. L.; Andreatta, V.; Meertens, C. M.; Krahenbuhl, T.; Kenner, B.

2001-12-01

As part of an effort to evaluate continuous GPS measurements for use in mine safety studies, a joint GPS-seismic experiment was conducted at an underground longwall coal mine near Paonia, Colorado in June, 2001. Seismic and deformation signals were measured using prototype low-cost monitoring systems as a longwall panel was excavated 150 m beneath the site. Data from both seismic and GPS instruments were logged onto low-power PC-104 Linux computers which were networked using a wireless LAN. The seismic system under development at NIOSH/SRL is based on multiple distributed 8-channel 24-bit A/D converters. The GPS system uses a serial single-frequency (L1) receiver and UNAVCO's "Jstream" Java data logging software. For this experiment, a continuously operating dual-frequency GPS receiver was installed 2.4 km away to serve as a reference site. In addition to the continuously operating sites, 10 benchmarks were surveyed daily with short "rapid-static" occupations in order to provide greater spatial sampling. Two single-frequency sites were located 35 meters apart on a relatively steep north-facing slope. As mining progressed from the east, net displacements of 1.2 meters to the north and 1.65 meters of subsidence were observed over a period of 6 days. The east component exhibited up to 0.45 meters of eastward displacement (toward the excavation) followed by reverse movement to the west. This cycle, observed approximately two days earlier at the eastern L1 site, is consistent with a change in surface strain from tension to compression as the excavation front passed underneath. As this strain "wave" propagated across the field site, surface deformation underwent a cycle of tension crack nucleation, crack opening (up to 15 cm normal displacements), subsequent crack closure, and production of low-angle-thrust compressional deformation features. Analysis of seismic results, surface deformation, and additional survey results are presented.

The Detection and Characterization of Urbanization, Industrialization, and Longwall Mining Impacts on Forest Ecosystems Through the Use of GiS and Remote Sensing Techniques

NASA Astrophysics Data System (ADS)

Pfeil-McCullough, Erin Kathleen

Urbanization has far reaching and significant effects on forest ecosystems, directly through urban development and indirectly through supportive processes such as coal mining and agriculture. Urban processes modify the landscape leading to altered hillslope hydrology, increased disturbance, and the introduction of non-native forest pathogens. This dissertation addresses several challenges in our ability to detect these urbanization impacts on forests via geospatial analyses. The role of forests in urban hydrological processes has been extensively studied, but the impacts of urbanized hydrology on forests remain poorly examined. This dissertation documented impacts to hydrology and forests at variety of temporal and spatial scales: 1) A geospatial comparison of the historic and contemporary forests of Allegheny County, Pennsylvania revealed substantial shifts in tree species, but less change in the species soil moisture preference. These results document additional evidence that increased heterogeneity in urban soil moisture alters forest structure. 2) To examine soil moisture changes, impacts of longwall mine subsidence were assessed by using a Landsat based canopy moisture index and hot spot analysis tools at the forest patch scale. Declines in forest canopy moisture were detected over longwall mines as mining progressed through time, and results contradicted assumptions that the hydrological impacts overlying LMS recover within 4-5 years following subsidence of undermined land. 3) Utilizing a landslide susceptibility model (SINMAP), increases in landslide susceptibility were predicted in Pittsburgh, PA based on several scenarios of ash tree loss to the emerald ash borer (EAB), a bark beetle that rapidly kills ash trees. This model provides a tool to predict changes in landslide susceptibility following tree loss, increasing the understanding of urban forest function and its role in slope stability. Detecting how urbanized hydrology impacts forest health, function, and development is fundamental to sustaining the services forests provide. Results from this dissertation will ultimately allow improvements in the management and protection of both trees and water resources in urban systems and beyond.

The Serious Joy and the Joyful Work of Play: Children becoming Agentive Actors in Co-Authoring Themselves and Their World through Play

ERIC Educational Resources Information Center

Stetsenko, Anna; Ho, Pi-Chun Grace

2015-01-01

In most cultures, play seems to matter a great deal to young children. This is evidenced by the vast amount of time children spent playing and the combination of often unsurpassed passion, imagination, and energy which they invest in this activity. This paper explores why play matters through the lens of Bakhtin's dialogic approach combined with…

Evaluation of a Community-Based Program That Integrates Joyful Movement Into Fall Prevention for Older Adults

PubMed Central

Carlucci, Celeste; Kardachi, Julie; Bradley, Sara M.; Prager, Jason; Wyka, Katarzyna

2018-01-01

Background: Despite the development of evidence-based fall-prevention programs, there remains a need for programming that will engage older adults in real-world settings. Objective: This study aimed to evaluate a community-based group program that integrates joyful movement into fall prevention. The curriculum emphasizes a positive experience of movement, cultivating a healthy body image, and retraining of biomechanics. Design: Program evaluation was conducted using a one-group pre–post test study design. Key outcomes were functional balance and confidence. Qualitative feedback was gathered at the final class sessions. Results: Two hundred fifteen older adults enrolled at four sites over the period from 2010 to 2014. Among 86 participants who provided feedback, most credited the program for an increased sense of optimism and/or confidence (70%), and better walking ability (50%). Among 102 participants who completed both initial and final assessments, there was evidence of significant improvements on the Functional Reach Test (d = .60, p < .001) and Modified Falls Efficacy Scale (d = .17, p < .001). Conclusion: A joyful movement curriculum is acceptable to older participants, and they show improvements in functional balance and confidence. Future research should examine whether the positive changes encouraged by joyful movement lead to lasting reductions in fall risk and additional health benefits. PMID:29796405

Growing of the mathematical thinking imaginative to students in designing of the teaching aids for CWD towards to joyful learning

NASA Astrophysics Data System (ADS)

Sugiman; Sugiharti, E.; Kurniawati, N. F.

2018-03-01

Government and the private parties had also organized of Special School (SS) and Inclusive School. SS requires of math teachers who were professional in the material, but also master the needs of Children with Disabilities (CwD) in teaching-learning process. The problem: How to design the Teaching Aids for CwD through Extra-Curriculum Training (ECT) activities to Joyful Learning? The purposes of this research: (1) To find new ways how to grow the imaginative in mathematical thinking for students of Mathematics Education. (2) To find a Teaching Aids Design that suitable for CwD who studying in SS. (3) In order to create a Teaching Aids for CwD through activities based on ECT to Joyful Learning. The research method was done by qualitative approach. The research subjects were 6 students of Mathematics Education Study Program of FMIPA UNNES who were interested in attending of the training activities based on ECT. The results: (1) ECT can be a place to grow an Imaginative in Mathematical Thinking of students, (2) created the design of the teaching aids for CwD through activities based on ECT to Joyful Learning as a mirror of the imaginative growth in mathematical thinking for students.

30 CFR 75.830 - Splicing and repair of trailing cables.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Splicing and repair of trailing cables. 75.830... High-Voltage Longwalls § 75.830 Splicing and repair of trailing cables. (a) Splices and repairs. (1... and repairs to high-voltage trailing cables must be made: (i) Only by a qualified person trained in...

30 CFR 57.22213 - Air flow (III mines).

Code of Federal Regulations, 2014 CFR

2014-07-01

... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Air flow (III mines). 57.22213 Section 57.22213... Methane in Metal and Nonmetal Mines Ventilation § 57.22213 Air flow (III mines). The quantity of air... longwall and continuous miner sections. The quantity of air across each face at a work place shall be at...

30 CFR 57.22213 - Air flow (III mines).

Code of Federal Regulations, 2012 CFR

2012-07-01

... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Air flow (III mines). 57.22213 Section 57.22213... Methane in Metal and Nonmetal Mines Ventilation § 57.22213 Air flow (III mines). The quantity of air... longwall and continuous miner sections. The quantity of air across each face at a work place shall be at...

76 FR 37838 - Petitions for Modification of Application of Existing Mandatory Safety Standards

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-28

... may include periodic tests of methane levels and limits on the minimum methane concentrations that may...) Methane monitor(s) will be calibrated on the longwall, continuous mining machine, or cutting machine and... petitioner will test for methane with a hand-held methane detector at least every 10 minutes from the time...

78 FR 49774 - Petitions for Modification of Application of Existing Mandatory Safety Standards

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-15

... the well. (7) Calibrate the methane monitors on the longwall, continuous mining machine, or cutting..., test methane levels with a hand- held methane detector at least every 10 minutes from the time that... methane levels are less than 1.0 percent in all areas that will be exposed to flames and sparks from the...

Army Logistician. Volume 39, Issue 4, July-August 2007

DTIC Science & Technology

2007-08-01

because they fit underneath by CaPtain joy a. sChMaLzLe Battlefield Vision: Eyeglasses for the Soldier ARMy LOGISTICIAN PROFESSIONAL BULLETIN...a lens to fit into the frame . To create sunglasses, lenses are placed into a tint bath until they reach the desired darkness. The OptiCast system...Staff Sergeant Michael P. Winkler, USAR 28 Battlefield Vision: Eyeglasses for the Soldier—Captain Joy A. Schmalzle 31 Tiedown for Safety and

Let Book Joy Begin @ Your Library[R]!: Ten Years of El Dia de los Ninos/El Dia de los Libros

ERIC Educational Resources Information Center

Roy, Loriene

2007-01-01

Ten years ago, in 1996, poet and children's book author, Pat Mora began celebrating "book joy" by founding a children's book and reading day, El Dia de los Ninos/El Dia de los Libros or Children's Day/Book Day. Dia is modeled on National Children's Day Celebrations in Mexico held since 1925 when it was launched in conjunction with a…

Optimizing The Scheduling Of Recruitment And Initial Training For Soldiers In The Australian Army

DTIC Science & Technology

2016-03-01

SCHEDULING OF RECRUITMENT AND INITIAL TRAINING FOR SOLDIERS IN THE AUSTRALIAN ARMY by Melissa T. Joy March 2016 Thesis Advisor: Kenneth...SOLDIERS IN THE AUSTRALIAN ARMY 5. FUNDING NUMBERS 6. AUTHOR(S) Melissa T. Joy 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Naval...This thesis develops a master scheduling program to optimize recruitment into the Australian Army by employment category. The goal of the model

Strategies for enhancing perioperative safety: promoting joy and meaning in the workforce.

PubMed

Morath, Julianne; Filipp, Rhonda; Cull, Michael

2014-10-01

Workforce safety is a precondition of patient safety, and safety from both physical and psychological harm in the workplace is the foundation for an environment in which joy and meaning can exist. Achieving joy and meaning in the workplace allows health care workers to continuously improve the care they provide. This requires an environment in which disrespectful and harmful behaviors are not tolerated or ignored. Health care leaders have an obligation to create workplace cultures that are characterized by respect, transparency, accountability, learning, and quality care. Evidence suggests, however, that health care settings are rife with disrespectful behavior, poor teamwork, and unsafe working conditions. Solutions for addressing workplace safety problems include defining core values, tasking leaders to act as role models, and committing to becoming a high-reliability organization. Copyright © 2014 AORN, Inc. Published by Elsevier Inc. All rights reserved.

[Effects of Different Genres of Music on the Psycho-Physiological Responses of Undergraduates].

PubMed

Lee, Hsin-Ping; Liu, Yu-Chen; Lin, Mei-Feng

2016-12-01

Undergraduate students face tremendous stressors from learning, interpersonal relationships, and life. Stress may cause adaptation exhaustion and stress-related disorders. While the results of recent clinical studies indicate that music interventions may alleviate stress, there is a dearth of research exploring the discrete effects of various genres of music on psycho-physiological status. To explore the effects of listening to different genres of music on the psycho-physiological responses of undergraduates. A one-group, pretest-posttest design was used. A total of 122 undergraduates were assigned to the following four music subgroups according to their musical preference: joyful, tense, sad, and peaceful. Students in each subgroup listened to the self-selected music for 15 minutes during the experiment. A physiological data acquisition systems, the State Anxiety Inventory, and the Visual Analogue Scale for anxiety and depression were used to measure the psycho-physiological responses of participants before, during, and after music listening. Descriptive and inferential analyses were performed using SPSS 20.0. Results: Depression significantly decreased in the peaceful music group compared to the sad music group after the intervention. Further, significant differences in heart rate variability were identified during the intervention among the groups. The change in low frequency (LF) in the joyful music group was lower than the other three groups; the change in high frequency (HF) in the peaceful music group was lower than in the tension and joyful music groups; and the change in LF/HF in the peaceful music group was lower than in the sad and joyful music groups. Additionally, the subsamples with high state anxiety experienced more change in HF while listening to tense music than to peaceful music, reflecting an upward trend after listening for 10 minutes. The findings indicate that listening to different genres of music induces different psycho-physiological responses. In the present study, participants with high-state anxiety registered elevated parasympathetic activity after listening to 10 minutes of tense and sad music. Simultaneous listening effects were detected only in joyful and peaceful music, which reduced subjective anxiety and depression. The results of the present study advocate that music interveners and clinical care providers select joyful, peaceful, and tense music to help alleviate the anxiety and negative emotions of their patients. Furthermore, the psycho-physiological changes of these patients should be assessed after listening to this music.

A Dialogue on the Subject Catalogue. J. M. Perreault: "A Representative of the New Left in American Subject Cataloguing." A Review Essay on Sanford Berman's "The Joy of Cataloging" with Response by Sanford Berman. Occasional Paper Number 161.

ERIC Educational Resources Information Center

Perreault, J. M.; Berman, Sanford

Perreault's essay presents a critical review of "The Joy of Cataloging," a collection of 44 essays, addresses, reviews, and letters by Sanford Berman, head cataloger at the Hennepin County Library (HCL) in Edina, Minnesota. Cataloging principles ascribed to Berman include naturalness and fullness of language, file integration,…

Emotions in Speech

NASA Astrophysics Data System (ADS)

Sobin, Christina Ann

This study was undertaken to examine the acoustical encoding of fear, anger, sadness and joy in voice. Twenty emotion-induction stories were read by 31 subjects who produced a total of 620 emotion-laden standard sentences. Subjects rated their emotions, and the acoustics of each sentence were analyzed. Twelve judges were employed to rate the emotion of each sentence, and their ratings were used to select "prototype" sentences for each emotion. The acoustical characteristics distinguishing each emotion were calculated. Rate, amount of time spent talking and pausing, and number of gaps, in addition to amplitude, frequency and their variances, uniquely distinguished among fear, anger, sadness and joy. Results of past studies were confirmed, and additional differentiation among the emotions was achieved. Judges' confusion matrices were analyzed in order to assess the relationship of detectability and discriminability to acoustic characteristics. It was found that the detectability and/or discriminability of fear, anger, sadness and joy, to varying degrees, paralleled the amount of acoustical overlap among them. A further test of the acoustic findings suggested that mean values of acoustic variables may accurately describe the acoustic cues to sadness and joy, but perhaps not to fear and anger. Thus, additional acoustic parameters, such as the temporal pattern of the acoustic measures, may inform raters. It is suggested that time-based profiles of amplitude and frequency may offer a plausible addition to future research endeavors.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zvi H. Meiksin

A temporary installation of Transtek's in-mine communications system in the Lake Lynn mine was used in the mine rescue training programs offered by NIOSH in April and May 2002. We developed and implemented a software program that permits point-to-point data transmission through our in-mine system. We also developed a wireless data transceiver for use in a PLC (programmed logic controller) to remotely control long-wall mining equipment.

Control of heat and humidity in German mines

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schlotte, W.

1999-07-01

In order to increase the economic efficiency of West European hard coal, great efforts are being made at present in the coal-producing countries to lower production costs. This aim is to be achieved in Germany, among other things, by a drastic increase in the saleable output per working face up to an average of 10,000 t/d in these cases where very long longwall faces (400 m {+-} 50 m) are possible. With the substantially greater heat input into the air stream which this involves, there is the danger that climatic limits will be exceeded even at longwall faces with lowermore » than average rock temperatures. Working in high temperatures and/or humidities can lead to risky lack of concentration of the miners to heat collapse and extremely dangerous heat stroke. In order to minimize the costs for mine climate control well-proven planning software and climitization technology is necessary for underground workings. With the DMT climate simulation programs, both the dry and the extremely significant humid heat transfer can be calculated and the optimum air cooling system for a mine can be designed with due regard to technical and economic aspects.« less

Coherent Seismic Arrivals in the P Wave Coda of the 2012 Mw 7.2 Sumatra Earthquake: Water Reverberations or an Early Aftershock?

NASA Astrophysics Data System (ADS)

Fan, Wenyuan; Shearer, Peter M.

2018-04-01

Teleseismic records of the 2012 Mw 7.2 Sumatra earthquake contain prominent phases in the P wave train, arriving about 50 to 100 s after the direct P arrival. Azimuthal variations in these arrivals, together with back-projection analysis, led Fan and Shearer (https://doi.org/10.1002/2016GL067785) to conclude that they originated from early aftershock(s), located ˜150 km northeast of the mainshock and landward of the trench. However, recently, Yue et al. (https://doi.org/10.1002/2017GL073254) argued that the anomalous arrivals are more likely water reverberations from the mainshock, based mostly on empirical Green's function analysis of a M6 earthquake near the mainshock and a water phase synthetic test. Here we present detailed back-projection and waveform analyses of three M6 earthquakes within 100 km of the Mw 7.2 earthquake, including the empirical Green's function event analyzed in Yue et al. (https://doi.org/10.1002/2017GL073254). In addition, we examine the waveforms of three M5.5 reverse-faulting earthquakes close to the inferred early aftershock location in Fan and Shearer (https://doi.org/10.1002/2016GL067785). These results suggest that the reverberatory character of the anomalous arrivals in the mainshock coda is consistent with water reverberations, but the origin of this energy is more likely an early aftershock rather than delayed and displaced water reverberations from the mainshock.

The experience of beauty derived from sorrow

PubMed Central

2017-01-01

Abstract We studied the neural mechanisms that are engaged during the experience of beauty derived from sorrow and from joy, two experiences that share a common denominator (beauty) but are linked to opposite emotional valences. Twenty subjects viewed and rerated, in a functional magnetic resonance imaging scanner, 120 images which each had classified into the following four categories: beautiful and sad; beautiful and joyful; neutral; ugly. The medial orbito‐frontal cortex (mOFC) was active during the experience of both types of beauty. Otherwise, the two experiences engaged different parts of the brain: joyful beauty engaged areas linked to positive emotions while sorrowful beauty engaged areas linked to negative experiences. Separate regions of the cerebellum were engaged during experience of the two conditions. A functional connectivity analysis indicated that the activity within the mOFC was modulated by the supplementary motor area/middle cingulate cortex, known to be engaged during empathetic experiences provoked by other peoples' sadness. Hum Brain Mapp 38:4185–4200, 2017. © 2017 Wiley Periodicals, Inc. PMID:28544456

The role of scripts in personal consistency and individual differences.

PubMed

Demorest, Amy; Popovska, Ana; Dabova, Milena

2012-02-01

This article examines the role of scripts in personal consistency and individual differences. Scripts are personally distinctive rules for understanding emotionally significant experiences. In 2 studies, scripts were identified from autobiographical memories of college students (Ns = 47 and 50) using standard categories of events and emotions to derive event-emotion compounds (e.g., Affiliation-Joy). In Study 1, scripts predicted responses to a reaction-time task 1 month later, such that participants responded more quickly to the event from their script when asked to indicate what emotion would be evoked by a series of events. In Study 2, individual differences in 5 common scripts were found to be systematically related to individual differences in traits of the Five-Factor Model. Distinct patterns of correlation revealed the importance of studying events and emotions in compound units, that is, in script form (e.g., Agreeableness was correlated with the script Affiliation-Joy but not with the scripts Fun-Joy or Affiliation-Love). © 2012 The Authors. Journal of Personality © 2012, Wiley Periodicals, Inc.

Three-Dimensional Numerical Simulation of the Mass Exchange Between Longwall Headings and Goafs, in the Presence of Methane Drainage in A U-Type Ventilated Longwall / Symulacja Numeryczna 3D Procesów Wymiany Masy W Układzie Wyrobiska Ścianowe Zroby, W Aspekcie Prowadzenia Odmetanowania Ściany Przewietrzanej Systemem Na „U"

NASA Astrophysics Data System (ADS)

Skotniczny, Przemysław

2013-09-01

The phenomena related to the occurrence of methane in underground mines pose a considerable danger in the process of coal seam exploitation. Quite often, experimental analysis falls short of investigating their areas of origin (goafs area, affected rock mass, the tail gate area with abandoned excavation). Therefore, an invaluable tool for evaluating the risk involved in the exploitation process might be the numerical simulation of the phenomenon in question, carried out with the use of the latest CFD methods. Due to its application, we are able to recreate and predict the mechanism of the studied phenomenon, with certain assumptions and simplifications made. The present paper discusses the results of the numerical simulation of the process of mass exchange occurring between affected rock mass and longwall headings. The calculations were performed for two test cases - 100 meter long walls. Zjawiska związane z występowaniem metanu w kopalniach głębinowych stanowią poważne zagrożenie w procesie eksploatacji złóż węgla. Źródło występowania tych zjawisk dość często znajduje się poza możliwościami eksperymentalnej analizy (obszar zrobów, górotwór naruszony, strefa górnego naroża od strony zlikwidowanych wyrobisk ścianowych). Nieocenionym narzędziem oceny ryzyka eksploatacji w takim przypadku może stać się numeryczna symulacja zjawiska przy użyciu nowoczesnych metod CFD, która z uwzględnieniem pewnych założeń i uproszczeń jest wstanie odtworzyć oraz przewidzieć mechanizm zjawiska. W prezentowanym artykule przedstawiono wyniki symulacji numerycznej procesu wymiany masy pomiędzy górotworem naruszonym eksploatacją a wyrobiskami ścianowymi. Obliczenia zostały przeprowadzone dla dwóch przypadków testowych (test case) 100 metrowej długości ścian.

Response to "Nature fix: Addiction to outdoor activities"R. C. Buckley's commentary on Heirene, R. M., Shearer, D., Roderique-Davies, G., & Mellalieu, S. D. (2016). Addiction in extreme sports: An exploration of withdrawal states in rock climbers. Journal of Behavioral Addictions, 5, 332-341.

PubMed

Heirene, Robert M; Shearer, David; Mellalieu, Stephen D; Roderique-Davies, Gareth

2016-12-01

Buckley's commentary on our study of rock climber's withdrawal experiences raises a number of important questions surrounding the concept of extreme or adventure sports addiction. Drawing on the few available investigations of this topic, we respond to Buckley's questions here, though emphasize the need for further studies of extreme sports addiction in order to provide more empirically informed answers.

Workshop on New Views of the Moon 2: Understanding the Moon Through the Integration of Diverse Datasets

NASA Technical Reports Server (NTRS)

1999-01-01

This volume contains abstracts that have been accepted for presentation at the Workshop on New Views of the Moon II: Understanding the Moon Through the Integration of Diverse Datasets, September 22-24, 1999, in Flagstaff, Arizona. The workshop conveners are Lisa Gaddis (U.S. Geological Survey, Flagstaff and Charles K. Shearer (University of New Mexico). Color versions of some of the images contained in this volume are available on the meeting Web site (http://cass.jsc.nasa.gov/meetings/moon99/pdf/program.pdf).

Assessing Dispositions Toward Ridicule and Laughter in the Workplace: Adapting and Validating the PhoPhiKat-9 Questionnaire

PubMed Central

Hofmann, Jennifer; Ruch, Willibald; Proyer, René T.; Platt, Tracey; Gander, Fabian

2017-01-01

The current paper addresses the measurement of three dispositions toward ridicule and laughter; i.e., gelotophobia (the fear of being laughed at), gelotophilia (the joy of being laughed at), and katagelasticism (the joy of laughing at others). These traits explain inter-individual differences in responses to humor, laughter, and social situations related to humorous encounters. First, an ultra-short form of the PhoPhiKat-45 (Ruch and Proyer, 2009) was adapted in two independent samples (Construction Sample N = 157; Replication Sample N = 1,774). Second, we tested the validity of the PhoPhiKat-9 in two further independent samples. Results showed that the psychometric properties of the ultra-short form were acceptable and the proposed factor structure could be replicated. In Validation Sample 1 (N = 246), we investigated the relation of the three traits to responses in a ridicule and teasing scenario questionnaire. The results replicated findings from earlier studies by showing that gelotophobes assigned the same emotions to friendly teasing and malicious ridicule (predominantly low joy, high fear, and shame). Gelotophilia was mainly predicted by relating joy to both, teasing and ridicule scenarios, while katagelasticism was predicted by assigning joy and contempt to ridicule scenarios. In Validation Sample 2 (N = 1,248), we investigated whether the fear of being laughed at is a vulnerability at the workplace: If friendly teasing and laughter of co-workers, superiors, or customers are misperceived as being malicious, individuals may feel less satisfied and more stressed. The results from a representative sample of Swiss employees showed that individuals with a fear of being laughed at are generally less satisfied with life and work and experience more work stress. Moreover, gelotophilia went along with positive evaluations of one's life and work, while katagelasticism was negatively related to work satisfaction and positively related to work stress. In order to establish good work practices and build procedures against workplace bullying, one needs to consider that individual differences impact on a person's perception of being bullied and assessing the three dispositions may give important insights into team processes. PMID:28553241

Sound-burst Generator for Measuring Coal Properties

NASA Technical Reports Server (NTRS)

Hadden, W. J. J.; Mills, J. M.; Pierce, A. D.

1982-01-01

Acoustical properties of coal can be measured accurately and with relative ease with aid of digital two-channel sine-wave sound generator. Generator is expected to provide information for development of acoustic devices for measuring thickness of coal in longwall mining. In echo-cancellation measurements, sound bursts are sent to coal sample from opposite directions. Transmitted and reflected amplitudes and phases are measured by transducers to determine coal properties.

Longwall top coal caving (LTCC) mining technologies with roof softening by hydraulic fracturing method

NASA Astrophysics Data System (ADS)

Klishin, V.; Nikitenko, S.; Opruk, G.

2018-05-01

The paper discusses advanced top coal caving technologies for thick coal seams and addresses some issues of incomplete coal extraction, which can result in the environmental damage, landscape change, air and water pollution and endogenous fires. The authors put forward a fundamentally new, having no equivalent and ecology-friendly method to difficult-to-cave roof coal – directional hydraulic fracturing and nonexplosive disintegration.

Roadway backfill method to prevent geohazards induced by room and pillar mining: a case study in Changxing coal mine, China

NASA Astrophysics Data System (ADS)

Zhou, Nan; Li, Meng; Zhang, Jixiong; Gao, Rui

2016-11-01

Coal mines in the western areas of China experience low mining rates and induce many geohazards when using the room and pillar mining method. In this research, we proposed a roadway backfill method during longwall mining to target these problems. We tested the mechanical properties of the backfill materials to determine a reasonable ratio of backfill materials for the driving roadway during longwall mining. We also introduced the roadway layout and the backfill mining technique required for this method. Based on the effects of the abutment stress from a single roadway driving task, we designed the distance between roadways and a driving and filling sequence for multiple-roadway driving. By doing so, we found the movement characteristics of the strata with quadratic stabilization for backfill mining during roadway driving. Based on this research, the driving and filling sequence of the 3101 working face in Changxing coal mine was optimized to avoid the superimposed influence of mining-induced stress. According to the analysis of the surface monitoring data, the accumulated maximum subsidence is 15 mm and the maximum horizontal deformation is 0.8 mm m-1, which indicated that the ground basically had no obvious deformation after the implementation of the roadway backfill method at 3101 working face.

The experience of beauty derived from sorrow.

PubMed

Ishizu, Tomohiro; Zeki, Semir

2017-08-01

We studied the neural mechanisms that are engaged during the experience of beauty derived from sorrow and from joy, two experiences that share a common denominator (beauty) but are linked to opposite emotional valences. Twenty subjects viewed and rerated, in a functional magnetic resonance imaging scanner, 120 images which each had classified into the following four categories: beautiful and sad; beautiful and joyful; neutral; ugly. The medial orbito-frontal cortex (mOFC) was active during the experience of both types of beauty. Otherwise, the two experiences engaged different parts of the brain: joyful beauty engaged areas linked to positive emotions while sorrowful beauty engaged areas linked to negative experiences. Separate regions of the cerebellum were engaged during experience of the two conditions. A functional connectivity analysis indicated that the activity within the mOFC was modulated by the supplementary motor area/middle cingulate cortex, known to be engaged during empathetic experiences provoked by other peoples' sadness. Hum Brain Mapp 38:4185-4200, 2017. © 2017 Wiley Periodicals, Inc. © 2017 The Authors Human Brain Mapping Published by Wiley Periodicals, Inc.

Modeling stress–strain state of rock mass under mining of complex-shape extraction pillar

NASA Astrophysics Data System (ADS)

Fryanov, VN; Pavlova, LD

2018-03-01

Based on the results of numerical modeling of stresses and strains in rock mass, geomechanical parameters of development workings adjacent to coal face operation area are provided for multi-entry preparation and extraction of flat seams with production faces of variable length. The negative effects on the geomechanical situation during the transition from the longwall to shortwall mining in a fully mechanized extraction face are found.

Multimodal emotion perception after anterior temporal lobectomy (ATL)

PubMed Central

Milesi, Valérie; Cekic, Sezen; Péron, Julie; Frühholz, Sascha; Cristinzio, Chiara; Seeck, Margitta; Grandjean, Didier

2014-01-01

In the context of emotion information processing, several studies have demonstrated the involvement of the amygdala in emotion perception, for unimodal and multimodal stimuli. However, it seems that not only the amygdala, but several regions around it, may also play a major role in multimodal emotional integration. In order to investigate the contribution of these regions to multimodal emotion perception, five patients who had undergone unilateral anterior temporal lobe resection were exposed to both unimodal (vocal or visual) and audiovisual emotional and neutral stimuli. In a classic paradigm, participants were asked to rate the emotional intensity of angry, fearful, joyful, and neutral stimuli on visual analog scales. Compared with matched controls, patients exhibited impaired categorization of joyful expressions, whether the stimuli were auditory, visual, or audiovisual. Patients confused joyful faces with neutral faces, and joyful prosody with surprise. In the case of fear, unlike matched controls, patients provided lower intensity ratings for visual stimuli than for vocal and audiovisual ones. Fearful faces were frequently confused with surprised ones. When we controlled for lesion size, we no longer observed any overall difference between patients and controls in their ratings of emotional intensity on the target scales. Lesion size had the greatest effect on intensity perceptions and accuracy in the visual modality, irrespective of the type of emotion. These new findings suggest that a damaged amygdala, or a disrupted bundle between the amygdala and the ventral part of the occipital lobe, has a greater impact on emotion perception in the visual modality than it does in either the vocal or audiovisual one. We can surmise that patients are able to use the auditory information contained in multimodal stimuli to compensate for difficulty processing visually conveyed emotion. PMID:24839437

The spiritual meaning of pre-loss music therapy to bereaved caregivers of advanced cancer patients.

PubMed

Magill, Lucanne

2009-03-01

The aim of this study was to learn how music therapy sessions, held prior to the death of a loved one, impact spirituality in surviving caregivers of advanced cancer patients. The method of naturalistic inquiry was used to investigate the spiritual meaning of pre-loss music therapy sessions. Bereaved caregivers of seven different patients, who had been receiving music therapy through a home-based hospice program, participated in individual open-ended interviews. Interviews were recorded, transcribed, and coded. Themes were organized as they emerged. As caregivers reflected on their experiences in music therapy, they reported autonomous joy (music therapy affected the caregiver directly) and empathic joy (caregivers' joy was based in remembering seeing the patient happy in music therapy). They also noted feelings of empowerment due to the ways they felt they had contributed in the care of the patients through music therapy. The caregivers were found to engage in processes of reflection that inspired these spiritual themes: reflection on the present (connectedness), reflection on the past (remembrance), and reflection on the future (hope). They referred to the ways that the music therapy sessions helped them find connection with self, others (through bringing their loved ones "back to life" and have a "renewal of self"), and the "beyond"; and that times in music therapy brought them happy memories and sentiments of hope. Meaning through transcendence was found to be the overarching trend in this study, as caregivers were lifted from remorse into heightened sense of meaning and gained "airplane views" of their lives. Pre-loss music therapy can potentially assist caregivers during times of bereavement, as they retain memories of joy and empowerment, rather than memories of pain and distress, and find meaning through transcendence.

Intense or malicious? The decoding of eyebrow-lowering frowning in laughter animations depends on the presentation mode

PubMed Central

Hofmann, Jennifer

2014-01-01

Joyful laughter is the only laughter type that has received sufficient validation in terms of morphology (i.e., face, voice). Still, it is unclear whether joyful laughter involves one prototypical facial-morphological configuration (Duchenne Display and mouth opening) to be decoded as such, or whether qualitatively distinct facial markers occur at different stages of laughter intensity. It was proposed that intense laughter goes along with eyebrow-lowering frowning, but in decoding studies of pictures, these “frowns” were associated with perceived maliciousness rather than higher intensity. Thus, two studies were conducted to investigate the influence of the presentation mode (static, dynamic) and eyebrow-lowering frowning on the perception of laughter animations of different intensity. In Study 1, participants (N = 110) were randomly assigned to two presentation modes (static pictures vs. dynamic videos) to watch animations of Duchenne laughter and laughter with added eyebrow-lowering frowning. Ratings on the intensity, valence, and contagiousness of the laughter were completed. In Study 2, participants (N = 55) saw both animation types in both presentation modes sequentially. Results confirmed that the static presentation lead to eyebrow-lowering frowning in intense laughter being perceived as more malicious, less intense, less benevolent, and less contagious compared to the dynamic presentation. This was replicated for maliciousness in Study 2, although participants could potentially infer the “frown” as a natural element of the laugh, as they had seen the video and the picture. Thus, a dynamic presentation is necessary for detecting graduating intensity markers in the joyfully laughing face. While this study focused on the decoding, future studies should investigate the encoding of frowning in laughter. This is important, as tools assessing facially expressed joy might need to account for laughter intensity markers that differ from the Duchenne Display. PMID:25477836

Moments of joy and delight: the meaning of traditional food in dementia care.

PubMed

Hanssen, Ingrid; Kuven, Britt Moene

2016-03-01

To learn about the meaning of traditional food to institutionalised patients with dementia. Traditional food strengthens the feelings of belonging, identity and heritage, which help persons with dementia to hold on to and reinforce their cultural identity and quality of life. Taste is more cultural than physiological. Dietary habits are established early in life and may be difficult to change. Being served unfamiliar dishes may lead to disappointment and a feeling of being betrayed and unloved. The three studies presented have a qualitative design. In-depth interviews of family members and nurses experienced in dementia care were conducted in South Africa and among ethnic Norwegians and the Sami in Norway. Content-focused analysis, hermeneutic in character, was used to enable the exploration of the thoughts, feelings and cultural meaning described. Traditional foods created a feeling of belonging and joy. Familiar tastes and smells awoke pleasant memories in patients and boosted their sense of well-being, identity and belonging, even producing words in those who usually did not speak. In persons with dementia, dishes remembered from their childhood may help maintain and strengthen cultural identity, create joy and increase patients' feeling of belonging, being respected and cared for. Traditional food furthermore improves patients' appetite, nutritional intake and quality of life. To serve traditional meals in nursing homes demands extra planning and resources, traditional knowledge, creativity and knowledge of patients' personal tastes. This study provides insight into culture-sensitive dietary needs of institutionalised patients with dementia. The cultural significance of food for feeling contentment and social and physical well-being is discussed. Besides helping to avoid undernutrition, being served traditional dishes may be very important to reminiscence, joy, thriving and quality of life. © 2016 John Wiley & Sons Ltd.

Psychophysiological correlates of affects in human olfaction.

PubMed

Bensafi, M; Rouby, C; Farget, V; Bertrand, B; Vigouroux, M; Holley, A

2002-11-01

Pleasantness and arousal have been identified as the main dimensions of affective responses to environment. Pleasantness is defined as the degree of favorable feelings a subject can experience under given circumstances. Arousal is defined as the degree of excitement (general activation) the subject feels under these circumstances. In visual and auditory modalities, many studies using measures such as facial electromyographic (EMG) activity and skin conductance (SC) have found those parameters to vary as a function of either pleasantness or arousal: for example, facial corrugator EMG activity covaries with the pleasantness dimension, while SC increases together with arousal. The first objective of this research is to study the possible covariation between peripheral measures and pleasantness/arousal in olfaction. We also examined the effect of odor intensity on facial and autonomic variations. The second objective was to investigate whether odors could evoke verbally specific emotions (e.g. joy, anger, fear, surprise, disgust or sadness) and also induce specific patterns of peripheral responses. Participants were exposed to 12 different odors while their facial and autonomic parameters were recorded, and estimated their intensity, pleasantness, and arousal capacity. Then, they chose between seven words for emotions (fear, anger, sadness, surprise, neutral, joy or disgust) to describe their reaction to the odor. As in vision, olfactory pleasantness covaries (negatively) with facial activity of the corrugator muscle, and arousal (positively) with skin conductance. No relationships were observed between physiological changes and variations in perceived intensity. Results also showed that emotions of "disgust" and "joy" were more frequently evoked verbally than any other emotions, and that only facial EMG activity distinguishes them (e.g. "disgust" vs. "joy" and "neutral state"). The results are discussed in terms of possible existence of two brain systems (defensive and appetitive), each of them being able to vary in metabolic arousal.

Intense or malicious? The decoding of eyebrow-lowering frowning in laughter animations depends on the presentation mode.

PubMed

Hofmann, Jennifer

2014-01-01

Joyful laughter is the only laughter type that has received sufficient validation in terms of morphology (i.e., face, voice). Still, it is unclear whether joyful laughter involves one prototypical facial-morphological configuration (Duchenne Display and mouth opening) to be decoded as such, or whether qualitatively distinct facial markers occur at different stages of laughter intensity. It was proposed that intense laughter goes along with eyebrow-lowering frowning, but in decoding studies of pictures, these "frowns" were associated with perceived maliciousness rather than higher intensity. Thus, two studies were conducted to investigate the influence of the presentation mode (static, dynamic) and eyebrow-lowering frowning on the perception of laughter animations of different intensity. In Study 1, participants (N = 110) were randomly assigned to two presentation modes (static pictures vs. dynamic videos) to watch animations of Duchenne laughter and laughter with added eyebrow-lowering frowning. Ratings on the intensity, valence, and contagiousness of the laughter were completed. In Study 2, participants (N = 55) saw both animation types in both presentation modes sequentially. Results confirmed that the static presentation lead to eyebrow-lowering frowning in intense laughter being perceived as more malicious, less intense, less benevolent, and less contagious compared to the dynamic presentation. This was replicated for maliciousness in Study 2, although participants could potentially infer the "frown" as a natural element of the laugh, as they had seen the video and the picture. Thus, a dynamic presentation is necessary for detecting graduating intensity markers in the joyfully laughing face. While this study focused on the decoding, future studies should investigate the encoding of frowning in laughter. This is important, as tools assessing facially expressed joy might need to account for laughter intensity markers that differ from the Duchenne Display.

Predictors of Sensitivity to Perceptual Learning in Children With Infantile Nystagmus.

PubMed

Huurneman, Bianca; Boonstra, F Nienke; Goossens, Jeroen

2017-08-01

To identify predictors of sensitivity to perceptual learning on a computerized, near-threshold letter discrimination task in children with infantile nystagmus (idiopathic IN: n = 18; oculocutaneous albinism accompanied by IN: n = 18). Children were divided into two age-, acuity-, and diagnosis-matched training groups: a crowded (n = 18) and an uncrowded training group (n = 18). Training consisted of 10 sessions spread out over 5 weeks (grand total of 3500 trials). Baseline performance, age, diagnosis, training condition, and perceived pleasantness of training (training joy) were entered as linear regression predictors of training-induced changes on a single- and a crowded-letter task. An impressive 57% of the variability in improvements of single-letter visual acuity was explained by age, training condition, and training joy. Being older and training with uncrowded letters were associated with larger single-letter visual acuity improvements. More training joy was associated with a larger gain from the uncrowded training and a smaller gain from the crowded training. Fifty-six percent of the variability in crowded-letter task improvements was explained by baseline performance, age, diagnosis, and training condition. After regressing out the variability induced by training condition, baseline performance, and age, perceptual learning proved more effective for children with idiopathic IN than for children with albinism accompanied by IN. Training gains increased with poorer baseline performance in idiopaths, but not in children with albinism accompanied by IN. Age and baseline performance, but not training joy, are important prognostic factors for the effect of perceptual learning in children with IN. However, their predictive value for achieving improvements in single-letter acuity and crowded letter acuity, respectively, differs between diagnostic subgroups and training condition. These findings may help with personalized treatment of individuals likely to benefit from perceptual learning.

"The instincts of motherhood: bringing joy back into newborn care".

PubMed

Odent, Michel

2009-11-01

Although homo sapiens is equipped with subneocortical neuro-endocrine structures comparable to those of all mammals, there is no scientific curiosity about basic behaviours such as the maternal protective aggressive instinct or basic emotional states such as joy. A study of the fetus ejection reflex is an opportunity to present the rational control of the procreative drives as a by-product of human brain evolution, and to clarify the concepts of neocortical inhibitions and cultural conditioning. After referring to recent spectacular advances, we anticipate that in the near future several developing scientific disciplines will have the power to overcome the effects of thousands of years of socialisation of childbirth.

[Coupling of brain oscillatory systems with cognitive (experience and valence) and physiological (cardiovascular reactivity) components of emotion].

PubMed

Aftanas, L I; Reva, N V; Pavlov, S V; Korenek, V V; Brak, I V

2014-02-01

We investigated the coupling of EEG oscillators with cognitive (experience and valence) and physiological (cardiovascular reactivity) components of emotion. Emotions of anger and joy were evoked in healthy males (n = 49) using a guided imagery method, multichannel EEG and cardiovascular reactivity (Finometer) were simultaneously recorded. Correlational analysis revealed that specially distributed EEG oscillators seem to be selectively involved into cognitive (experience and valence) and physiological (cardiovascular reactivity) components of emotional responding. We showed that low theta (4-6 Hz) activity from medial and lateral frontal cortex of the right hemisphere predominantly correlated with the anger experience, high alpha (10-12 and 12-14 Hz) and gamma (30-45 Hz) activity from central-parieto-occipital regions of the left hemisphere--with cardiovascular reactivity to anger and joy, gamma-activity (30-45 Hz) from the left hemisphere in parietal areas--with cardiovascular reactivity to joy. The findings suggest that specially distributed neuronal networks oscillating at different frequencies may be regarded as a putative neurobiological mechanism coordination dynamical balance between cognitive and physiological components of emotion as well as psycho-neuro-somatic relationships within the mind-brain-body system.

In Search of Joy in Practice: A Report of 23 High-Functioning Primary Care Practices

PubMed Central

Sinsky, Christine A.; Willard-Grace, Rachel; Schutzbank, Andrew M.; Sinsky, Thomas A.; Margolius, David; Bodenheimer, Thomas

2013-01-01

We highlight primary care innovations gathered from high-functioning primary care practices, innovations we believe can facilitate joy in practice and mitigate physician burnout. To do so, we made site visits to 23 high-performing primary care practices and focused on how these practices distribute functions among the team, use technology to their advantage, improve outcomes with data, and make the job of primary care feasible and enjoyable as a life’s vocation. Innovations identified include (1) proactive planned care, with previsit planning and previsit laboratory tests; (2) sharing clinical care among a team, with expanded rooming protocols, standing orders, and panel management; (3) sharing clerical tasks with collaborative documentation (scribing), nonphysician order entry, and streamlined prescription management; (4) improving communication by verbal messaging and in-box management; and (5) improving team functioning through co-location, team meetings, and work flow mapping. Our observations suggest that a shift from a physician-centric model of work distribution and responsibility to a shared-care model, with a higher level of clinical support staff per physician and frequent forums for communication, can result in high-functioning teams, improved professional satisfaction, and greater joy in practice. PMID:23690328

A face a mother could love: depression-related maternal neural responses to infant emotion faces.

PubMed

Laurent, Heidemarie K; Ablow, Jennifer C

2013-01-01

Depressed mothers show negatively biased responses to their infants' emotional bids, perhaps due to faulty processing of infant cues. This study is the first to examine depression-related differences in mothers' neural response to their own infant's emotion faces, considering both effects of perinatal depression history and current depressive symptoms. Primiparous mothers (n = 22), half of whom had a history of major depressive episodes (with one episode occurring during pregnancy and/or postpartum), were exposed to images of their own and unfamiliar infants' joy and distress faces during functional neuroimaging. Group differences (depression vs. no-depression) and continuous effects of current depressive symptoms were tested in relation to neural response to own infant emotion faces. Compared to mothers with no psychiatric diagnoses, those with depression showed blunted responses to their own infant's distress faces in the dorsal anterior cingulate cortex. Mothers with higher levels of current symptomatology showed reduced responses to their own infant's joy faces in the orbitofrontal cortex and insula. Current symptomatology also predicted lower responses to own infant joy-distress in left-sided prefrontal and insula/striatal regions. These deficits in self-regulatory and motivational response circuits may help explain parenting difficulties in depressed mothers.

Attachment avoidance, but not anxiety, minimizes the joys of caregiving.

PubMed

Nelson-Coffey, S Katherine; Borelli, Jessica L; River, Laura M

2017-10-01

Perhaps unlike other social roles that people may hold, caring for children offers opportunities for both immense joy and incredible frustration. Yet what predicts how parents will feel during caregiving experiences? In the current study, we examined parents' (N = 152) positive emotion, negative emotion, and felt meaning during caregiving using the Day Reconstruction Method. In addition, we tested attachment anxiety and avoidance as predictors of parents' emotion during caregiving relative to their other daily experiences. We found that attachment avoidance was associated with elevated negative emotion and reduced positive emotion and meaning in life across the entire day, whereas attachment anxiety was associated with elevated negative emotion and marginally greater meaning in life, but not positive emotion, across the entire day. Furthermore, caregiving was associated with greater positive emotion and meaning, but not negative emotion, compared to parents' other daily activities. Finally, attachment avoidance, but not anxiety, was associated with lower levels of positive emotion, negative emotion, and felt meaning during caregiving compared to other daily activities. These findings are consistent with other evidence that attachment avoidance is associated with deactivation of emotion in close relationships and suggest that attachment avoidance minimizes the joys of parenting.

Positive affect and physical activity: Testing effects on goal setting, activation, prioritisation, and attainment.

PubMed

Cameron, David S; Bertenshaw, Emma J; Sheeran, Paschal

2018-02-01

The present research tested whether incidental positive affect promotes pursuit of physical activity goals. Four key features of goal pursuit were examined - setting physical activity goals (Study 1), goal activation (Study 2), and goal prioritization and goal attainment (Study 3). Participants (N s = 80, 81, and 59, in Studies 1-3, respectively) were randomized to positive affect (joy, hope) or neutral affect (control) conditions in each study. Questionnaire measures of goal level, goal commitment, and means selection (Study 1); a lexical decision task indexed goal activation (Study 2), a choice task captured goal prioritization and MET minutes quantified goal attainment (Study 3). Study 1 showed that positive affect led to a greater number of intended physical activities, and that joy engendered greater willingness to try activities. In Study 2, a positive affect induction led to heightened activation of the physical activity goal compared to the control condition. The joy induction in Study 3 led to greater physical activity, and a trend towards greater goal prioritization. These findings suggest that positive affect enhances the pursuit of physical activity goals. Implications for health behavior theories and interventions are outlined.

Positive Emotion Specificity and Mood Symptoms in an Adolescent Outpatient Sample

PubMed Central

Gruber, June; Van Meter, Anna; Gilbert, Kirsten E.; Youngstrom, Eric A.; Youngstrom, Jennifer Kogos; Feeny, Norah C.; Findling, Robert L.

2017-01-01

Research on positive emotion disturbance has gained increasing attention, yet it is not clear which specific positive emotions are affected by mood symptoms, particularly during the critical period of adolescence. This is especially pertinent for identifying potential endophenotypic markers associated with mood disorder onset and course. The present study examined self-reported discrete positive and negative emotions in association with clinician-rated manic and depressive mood symptoms in a clinically and demographically diverse group of 401 outpatient adolescents between 11–18 years of age. Results indicated that higher self reported joy and contempt were associated with increased symptoms of mania, after controlling for symptoms of depression. Low levels of joy and high sadness uniquely predicted symptoms of depression, after controlling for symptoms of mania. Results were independent of age, ethnicity, gender and bipolar diagnosis. These findings extend work on specific emotions implicated in mood pathology in adulthood, and provide insights into associations between emotions associated with goal driven behavior with manic and depressive mood symptom severity in adolescence. In particular, joy was the only emotion associated with both depressive and manic symptoms across adolescent psychopathology, highlighting the importance of understanding positive emotion disturbance during adolescent development. PMID:28529394

A study of mining-induced seismicity in Czech mines with longwall coal exploitation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Holub, K.

2007-01-15

A review is performed for the data of local and regional seismographical networks installed in mines of the Ostrava-Karvina Coal Basin (Czech Republic), where underground anthracite mining is carried out and dynamic events occur in the form of rockbursts. The seismological and seismoacoustic observations data obtained in panels that are in limiting state are analyzed. This aggregate information is a basic for determining hazardous zones and assigning rockburst prevention measures.

Pressure-relief and methane production performance of pressure relief gas extraction technology in the longwall mining

NASA Astrophysics Data System (ADS)

Zhang, Cun; Tu, Shihao; Chen, Min; Zhang, Lei

2017-02-01

Pressure relief gas extraction technology (PRGET) has been successfully implemented at many locations as a coal mine methane exploitation and outburst prevention technology. Comprehensive PRGET including gob gas venthole (GGV), crossing seam drilling hole (CSDH), large diameter horizontal long drilling hole (LDHLDH) and buried pipe for extraction (BPE) have been used to extract abundant pressure-relief methane (PRM) during protective coal seam mining; these techniques mitigated dangers associated with coal and gas outbursts in 13-1 coal seam mining in the Huainan coalfield. These extraction technologies can ensure safe protective seam mining and effectively extract coal and gas. This article analyses PRGET production performance and verifies it with the field measurement. The results showed that PRGET drilling to extract PRM from the protected coal seam significantly reduced methane emissions from a longwall ventilation system and produced highly efficient extraction. Material balance analyses indicated a significant decrease in gas content and pressure in the protected coal seam, from 8.78 m3 t-1 and 4.2 MPa to 2.34 m3 t-1 and 0.285 MPa, respectively. The field measurement results of the residual gas content in protected coal seam (13-1 coal seam) indicated the reliability of the material balance analyses and the pressure relief range of PRGET in the protected coal seam is obtained.

Avian utilization of subsidence wetlands

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nawrot, J.R.; Conley, P.S.; Smout, C.L.

1995-09-01

Diverse and productive wetlands have resulted from coal mining in the midwest. The trend from surface to underground mining has increased the potential for subsidence. Planned subsidence of longwall mining areas provides increased opportunities for wetland habitat establishment. Planned subsidence over a 180 meter (590 foot) deep longwall mine in southern Illinois during 1984 to 1986 produced three subsidence wetlands totaling 15 hectares (38 acres). The resulting palustrine emergent wetlands enhanced habitat diversity within the surrounding palustrine forested unsubsided area. Habitat assessments and evaluations of avian utilization of the subsidence wetlands were conducted during February 1990 through October 1991. Avianmore » utilization was greatest within the subsided wetlands. Fifty-three bird species representing seven foraging guilds utilized the subsidence wetlands. Wading/fishing, dabbling waterfowl, and insectivorous avian guilds dominated the subsidence wetlands. The subsidence wetlands represented ideal habitat for wood ducks and great blue herons which utilized snags adjacent to and within the wetlands for nesting (19 great blue heron nests produced 25 young). Dense cover and a rich supply of macroinvertebrates provide excellent brood habitat for wood ducks, while herpetofauna and ichthyofauna provided abundant forage in shallow water zones for great blue herons and other wetland wading birds. The diversity of game and non-game avifauna utilizing the subsidence areas demonstrated the unique value of these wetlands. Preplanned subsidence wetlands can help mitigate loss of wetland habitats in the midwest.« less

A cooperative study of gate entry designs: Welbeck Colliery (UK) and Jim Walter Resources (USA)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hendon, G.; Carr, F.; Lewis, A.

1995-11-01

Longwall developments in the UK have historically consisted of single entry gate roads. Adjacent developments were separated from existing pales by large barrier pillars (designed of sufficient width to get away from the longwall abutments of the previous panel) or by small barriers driven in the shadow, or de-stressed zone, of the previous panel. Some 2nd panel tailgates were also driven skin to skin leaving no coal barrier between the newly driven entry and the heavily supported existing gateroad. With the development and wide acceptance of fully bolted entries and the pressure to reduce production costs, alternatives to single entrymore » drivage, particularly yield pillar developments, were examined. Through the Rock Mechanics Branch of british Coal, a cooperative study was begun with Jim Walter Resources, Inc., USA, (JWR) to look at the yield pillar alternative in detail. This study was to determine the feasibility of utilizing yield pillars in the UK and to determine, through monitoring, the possibility of reducing stable pillar widths at JWR. The study has included extensive monitoring of the yield-stable-yield pillar system at JWR No. 7 Mine and an underground trial of a two entry yield pillar test area at Welbeck Colliery in the UK. This paper describes results from the JWR study and the subsequent results of the first advancing yield pillar development in the UK at Welbeck Colliery.« less

Tube bundle system

PubMed Central

Marchewka, W.; Mohamed, K.; Addis, J.; Karnack, F.

2015-01-01

A tube bundle system (TBS) is a mechanical system for continuously drawing gas samples through tubes from multiple monitoring points located in an underground coal mine. The gas samples are drawn via vacuum pump to the surface and are typically analyzed for oxygen, methane, carbon dioxide and carbon monoxide. Results of the gas analyses are displayed and recorded for further analysis. Trends in the composition of the mine atmosphere, such as increasing methane or carbon monoxide concentration, can be detected early, permitting rapid intervention that prevents problems, such as a potentially explosive atmosphere behind seals, fire or spontaneous combustion. TBS is a well-developed technology and has been used in coal mines around the world for more than 50 years. Most longwall coal mines in Australia deploy a TBS, usually with 30 to 40 monitoring points as part of their atmospheric monitoring. The primary uses of a TBS are detecting spontaneous combustion and maintaining sealed areas inert. The TBS might also provide mine atmosphere gas composition data after a catastrophe occurs in an underground mine, if the sampling tubes are not damaged. TBSs are not an alternative to statutory gas and ventilation airflow monitoring by electronic sensors or people; rather, they are an option to consider in an overall mine atmosphere monitoring strategy. This paper describes the hardware, software and operation of a TBS and presents one example of typical data from a longwall coal mine PMID:26306052

Tube bundle system: for monitoring of coal mine atmosphere.

PubMed

Zipf, R Karl; Marchewka, W; Mohamed, K; Addis, J; Karnack, F

2013-05-01

A tube bundle system (TBS) is a mechanical system for continuously drawing gas samples through tubes from multiple monitoring points located in an underground coal mine. The gas samples are drawn via vacuum pump to the surface and are typically analyzed for oxygen, methane, carbon dioxide and carbon monoxide. Results of the gas analyses are displayed and recorded for further analysis. Trends in the composition of the mine atmosphere, such as increasing methane or carbon monoxide concentration, can be detected early, permitting rapid intervention that prevents problems, such as a potentially explosive atmosphere behind seals, fire or spontaneous combustion. TBS is a well-developed technology and has been used in coal mines around the world for more than 50 years. Most longwall coal mines in Australia deploy a TBS, usually with 30 to 40 monitoring points as part of their atmospheric monitoring. The primary uses of a TBS are detecting spontaneous combustion and maintaining sealed areas inert. The TBS might also provide mine atmosphere gas composition data after a catastrophe occurs in an underground mine, if the sampling tubes are not damaged. TBSs are not an alternative to statutory gas and ventilation airflow monitoring by electronic sensors or people; rather, they are an option to consider in an overall mine atmosphere monitoring strategy. This paper describes the hardware, software and operation of a TBS and presents one example of typical data from a longwall coal mine.

The seismic signatures of the solar system

NASA Astrophysics Data System (ADS)

Stähler, Simon C.; Kedar, Sharon; van Driel, Martin; Vance, Steven D.; Panning, Mark P.

2017-04-01

Seismology is a powerful tool to image the interior of planetary bodies. At the same time, its results are often difficult to visualize. The spectral-element solver AxiSEM (Nissen-Meyer et al. 2014) enables calculations of the broadband seismic response of terrestrial bodies with solid crusts and mantles, as well as icy moons with solid ice crusts overlying liquid oceans. In its database mode, Instaseis (van Driel et al. 2015), AxiSEM can efficiently calculate the seismic response for earthquakes at arbitrary distances and depths. We use this method to present a set of global stacks of seismograms, similar to the iconic global stack that Astiz and Shearer (1996) created for IRIS from thousands of seismograms on Earth. We present these stacks for models of Europa, Enceladus, Ganymede, Mercury, Venus, Moon and - for comparison - Earth. The results are based on thermodynamical modeling for the icy moons and orbital observations for the terrestrial planets. The results visualize how each planet and moon has its own unique seismic wavefield and which observables exist to infer its detailed structure by future lander missions. Astiz, L., P. Earle and P. Shearer, Global stacking of broadband seismograms, Seis. Res. Lett., 67, 8-18, 1996. M. van Driel, L. Krischer, S.C. Stähler, K. Hosseini, and T. Nissen-Meyer (2015), "Instaseis: instant global seismograms based on a broadband waveform database," Solid Earth, 6, 701-717, doi:10.5194/se-6-701-2015. Nissen-Meyer, T., van Driel, M., Stähler, S. C., Hosseini, K., Hempel, S., Auer, L., … Fournier, A. (2014). AxiSEM: broadband 3-D seismic wavefields in axisymmetric media. Solid Earth, 5(1), 425-445. https://doi.org/10.5194/se-5-425-2014

Comparing the effects of negative and mixed emotional messages on predicted occasional excessive drinking.

PubMed

Carrera, Pilar; Caballero, Amparo; Muñoz, Dolores

2008-01-01

In this work we present two types of emotional message, negative (sadness) versus mixed (joy and sadness), with the aim of studying their differential effect on attitude change and the probability estimated by participants of repeating the behavior of occasional excessive drinking in the near future. The results show that for the group of participants with moderate experience in this behavior the negative message, compared to the mixed one, is associated with higher probability of repeating the risk behavior and a less negative attitude toward it. These results suggest that mixed emotional messages (e.g. joy and sadness messages) could be more effective in campaigns for the prevention of this risk behavior.

[Evaluation of mimetic expression of schizophrenic and depressed patients by the psychiatrist].

PubMed

Schneider, F; Mattes, R; Adam, B; Heimann, H

1992-01-01

Facial videos of schizophrenic and depressive patients and of healthy controls when watching both funny and horror films and during emotionally positive or negative interviews were rated by psychiatrists (experts) and students (novices). The observers' task was to rate joy, fear, sadness, and expressivity on a 7-point unipolar intensity scale. The soundless facial videos were presented to each observer for exactly 2.5 min. The observer groups did not differ significantly in their ratings except for sadness. Psychiatrists consistently rated expressed sadness as less intense than students. Facial expressivity and joy were rated as less intense in both patient groups in comparison with healthy controls. Depressives expressed significantly more sadness.

Anger Is More Influential than Joy: Sentiment Correlation in Weibo

PubMed Central

Fan, Rui; Zhao, Jichang; Chen, Yan; Xu, Ke

2014-01-01

Recent years have witnessed the tremendous growth of the online social media. In China, Weibo, a Twitter-like service, has attracted more than 500 million users in less than five years. Connected by online social ties, different users might share similar affective states. We find that the correlation of anger among users is significantly higher than that of joy. While the correlation of sadness is surprisingly low. Moreover, there is a stronger sentiment correlation between a pair of users if they share more interactions. And users with larger number of friends possess more significant sentiment correlation with their neighborhoods. Our findings could provide insights for modeling sentiment influence and propagation in online social networks. PMID:25333778

Put on that colour, it fits your emotion: Colour appropriateness as a function of expressed emotion.

PubMed

Dael, Nele; Perseguers, Marie-Noëlle; Marchand, Cynthia; Antonietti, Jean-Philippe; Mohr, Christine

2016-01-01

People associate affective meaning with colour, and this may influence decisions about colours. Hue is traditionally considered the most salient descriptor of colour and colour-affect associations, although colour brightness and saturation seem to have particularly strong affective connotations. To test whether colour choices can be driven by emotion, we investigated whether and how colour hue, brightness, and saturation are systematically associated with bodily expressions of positive (joy) and negative (fear) emotions. Twenty-five non-colour-blind participants viewed videos of these expressions and selected for each video the most appropriate colour using colour sliders providing values for hue, brightness, and saturation. The overall colour choices were congruent with the expressed emotion--that is, participants selected brighter and more saturated colours for joy expressions than for fear expressions. Also, colours along the red-yellow spectrum were deemed more appropriate for joy expressions and cyan-bluish hues for fear expressions. The current study adds further support to the role of emotion in colour choices by (a) showing that emotional information is spontaneously used in an unconstrained choice setting, (b) extending to ecologically valid stimuli occurring in everyday encounters (dressed bodies), and (c) suggesting that all colour parameters are likely to be important when processing affective nonverbal person information, though not independently from each other.

Comparing the Effects of Negative and Mixed Emotional Messages on Predicted Occasional Excessive Drinking

PubMed Central

Carrera, Pilar; Caballero, Amparo; Muñoz, Dolores

2008-01-01

In this work we present two types of emotional message, negative (sadness) versus mixed (joy and sadness), with the aim of studying their differential effect on attitude change and the probability estimated by participants of repeating the behavior of occasional excessive drinking in the near future. The results show that for the group of participants with moderate experience in this behavior the negative message, compared to the mixed one, is associated with higher probability of repeating the risk behavior and a less negative attitude toward it. These results suggest that mixed emotional messages (e.g. joy and sadness messages) could be more effective in campaigns for the prevention of this risk behavior. PMID:25977606

In defense of parenthood: children are associated with more joy than misery.

PubMed

Nelson, S Katherine; Kushlev, Kostadin; English, Tammy; Dunn, Elizabeth W; Lyubomirsky, Sonja

2013-01-01

Recent scholarly and media accounts paint a portrait of unhappy parents who find remarkably little joy in taking care of their children, but the scientific basis for these claims remains inconclusive. In the three studies reported here, we used a strategy of converging evidence to test whether parents evaluate their lives more positively than do nonparents (Study 1), feel relatively better than do nonparents on a day-to-day basis (Study 2), and derive more positive feelings from caring for their children than from other daily activities (Study 3). The results indicate that, contrary to previous reports, parents (and especially fathers) report relatively higher levels of happiness, positive emotion, and meaning in life than do nonparents.

"We all look the same to me": positive emotions eliminate the own-race in face recognition.

PubMed

Johnson, Kareem J; Fredrickson, Barbara L

2005-11-01

Extrapolating from the broaden-and-build theory, we hypothesized that positive emotion may reduce the own-race bias in facial recognition. In Experiments 1 and 2, Caucasian participants (N = 89) viewed Black and White faces for a recognition task. They viewed videos eliciting joy, fear, or neutrality before the learning (Experiment 1) or testing (Experiment 2) stages of the task. Results reliably supported the hypothesis. Relative to fear or a neutral state, joy experienced before either stage improved recognition of Black faces and significantly reduced the own-race bias. Discussion centers on possible mechanisms for this reduction of the own-race bias, including improvements in holistic processing and promotion of a common in-group identity due to positive emotions.

High pressure water jet mining machine

DOEpatents

Barker, Clark R.

1981-05-05

A high pressure water jet mining machine for the longwall mining of coal is described. The machine is generally in the shape of a plowshare and is advanced in the direction in which the coal is cut. The machine has mounted thereon a plurality of nozzle modules each containing a high pressure water jet nozzle disposed to oscillate in a particular plane. The nozzle modules are oriented to cut in vertical and horizontal planes on the leading edge of the machine and the coal so cut is cleaved off by the wedge-shaped body.

Imagine Something Different: How a Group Approach to Scholarly Faculty Development Can Turn Joy-Stealing Competition Into Scholarly Productivity.

PubMed

Heinrich, Kathleen T

As academic institutions across the country raise the scholarly bar for retention, promotion, and tenure, academic leaders are being asked to scholar-ready nursing faculty. With the retirement of senior scholars and too few scholar-mentors to go around, leaders often find themselves squeezed between scholarly expectations on the rise and faculty groups less than ready to meet those expectations. Today's nursing faculty present a formidable scholarly development challenge. A diverse mix of master's-prepared clinicians and recent graduates from doctor of philosophy and doctor of nursing practice programs, they come with a broad range of scholarly learning needs. These inequities not only leave many faculty feeling like scholar-impostors but also they can breed competitions that erode collegial bonds and sow the seeds of incivilities that steal scholarly joy, slow scholarly progress, and stress academic workplaces. What if leaders began imagining something different for themselves and with faculty groups? This is what can happen when leaders expand their perspective on scholarly faculty development from individual challenge to collective responsibility. More essay than research paper, this article describes how scholarly joy-stealing patterns can infiltrate faculty groups, shares thought leaders' visions for supportive scholarly communities, and offers strategies leaders can use to invite faculty groups to co-create cultures of scholarly caring. Copyright © 2016 Elsevier Inc. All rights reserved.

Hafnium, Tungsten, and the Differentiation of the Moon and Mars

NASA Astrophysics Data System (ADS)

Taylor, G. J.

2003-11-01

Measurements of the isotopic composition of tungsten (W) show that lunar samples and Martian meteorites have an excess of W-182. This was produced by the decay of hafnium-182 (Hf-182), an isotope with a half-life of only 9 million years. Because tungsten dissolves enthusiastically in metallic iron and hafnium does not, it is possible to use the abundance of W-182 in rocks formed by melting of the silicate mantle as an indicator of the timing of core formation. However, the concentrations of Hf and W in rocky material can be affected by melting and crystallization, so we also need to know how each element concentrates in common minerals in the mantles of the Moon and Mars. The behavior of Hf has been studied experimentally, but this is not true of W. Kevin Righter (Johnson Space Center) and Charles (Chip) Shearer (University of New Mexico) have filled this knowledge void by determining how W partitions between olivine, high- and low-calcium pyroxene, plagioclase feldspar, and garnet. The new data allowed Righter and Shearer to reexamine available measurements of the isotopic composition of W in lunar samples and Martian meteorites. Their analysis suggests that the lunar magma ocean, a huge magma system that surrounded the Moon when it formed, solidified in less than 30 million years. This is shorter than many theoretical calculations suggest. Pathfinder data and chemical data from Martian meteorites suggest that the core of Mars makes up about 20% of the planet. Core formation and subsequent melting of a region of the mantle containing garnet and high-calcium pyroxene took place less than 20-30 million years after the formation of the first solids in the solar system. This type of research shows the importance of measurements of isotopic compositions of radioactive elements or their decay products and laboratory experiments on the geochemical behavior of those elements.

Analysis of Earthquake Source Spectra in Salton Trough

NASA Astrophysics Data System (ADS)

Chen, X.; Shearer, P. M.

2009-12-01

Previous studies of the source spectra of small earthquakes in southern California show that average Brune-type stress drops vary among different regions, with particularly low stress drops observed in the Salton Trough (Shearer et al., 2006). The Salton Trough marks the southern end of the San Andreas Fault and is prone to earthquake swarms, some of which are driven by aseismic creep events (Lohman and McGuire, 2007). In order to learn the stress state and understand the physical mechanisms of swarms and slow slip events, we analyze the source spectra of earthquakes in this region. We obtain Southern California Seismic Network (SCSN) waveforms for earthquakes from 1977 to 2009 archived at the Southern California Earthquake Center (SCEC) data center, which includes over 17,000 events. After resampling the data to a uniform 100 Hz sample rate, we compute spectra for both signal and noise windows for each seismogram, and select traces with a P-wave signal-to-noise ratio greater than 5 between 5 Hz and 15 Hz. Using selected displacement spectra, we isolate the source spectra from station terms and path effects using an empirical Green’s function approach. From the corrected source spectra, we compute corner frequencies and estimate moments and stress drops. Finally we analyze spatial and temporal variations in stress drop in the Salton Trough and compare them with studies of swarms and creep events to assess the evolution of faulting and stress in the region. References: Lohman, R. B., and J. J. McGuire (2007), Earthquake swarms driven by aseismic creep in the Salton Trough, California, J. Geophys. Res., 112, B04405, doi:10.1029/2006JB004596 Shearer, P. M., G. A. Prieto, and E. Hauksson (2006), Comprehensive analysis of earthquake source spectra in southern California, J. Geophys. Res., 111, B06303, doi:10.1029/2005JB003979.

Reading: The Human Touch.

ERIC Educational Resources Information Center

Roswell, Florence G.

1978-01-01

Reading programs must be reassessed, and fragmented, isolated, and repetitive exercises must be eliminated. The goal of any reading program is to get the child to experience the joys of reading and learning. (Author/WI)

The Power of Positive Emotions

MedlinePlus

... in your day for joy, fun, friendship, relaxation, gratitude, and kindness. Make these things a habit and ... Teens Dealing With Difficult Emotions Choosing Your Mood Gratitude 3 Ways to Increase Positive Emotions Positive Emotions: ...

How to Live a Happy Life

MedlinePlus

... things that make people happier: Positive Emotions Joy. Gratitude . Love. Amazement. Delight. Playfulness. Humor. Inspiration. Compassion. Hope. ... understand how someone else feels using kindness showing gratitude developing assertiveness to say what we want and ...

The Way of Love and Trust: The Sensitivity/Encounter Movement

ERIC Educational Resources Information Center

Back, Kurt W.

1972-01-01

Describes the unexpected revelations, conflict, despair and joy, spontaneous love-feasts, and sudden enthusiasms that happen at weekend encounter centers around the country--all under the mantle of science. (RJ)

Enjoyment and its discontents: Ecclesiastes in dialogue with Freud on the stewardship of joy.

PubMed

Browning Helsel, Philip

2010-03-01

The book of Ecclesiastes has frequently been mischaracterized as a cynical or pessimistic work. Instead, this article recommends Ecclesiastes, following Eunny P. Lee, as contributing to pastoral theology through its embodied and pragmatic theology of enjoyment in which practices of joy revitalize the human spirit. However, there are some who are unable to experience satisfaction. The absence of reflection on this problem in Ecclesiastes scholarship is considered the starting point of pastoral theology, and is addressed by a turn to the frequently misunderstood passage in 7:16-18, bringing it into conversation with the structural [corrected] model of the human person developed by Freud. At the same time, the interpersonal aspects of enjoyment found in Ecclesiastes critique Freud by suggesting how the fragmented parts of self-experience can be held together in an interpersonal context.

Broad Themes of Difference between French and Americans in Attitudes to Food and Other Life Domains: Personal Versus Communal Values, Quantity Versus Quality, and Comforts Versus Joys

PubMed Central

Rozin, Paul; Remick, Abigail K.; Fischler, Claude

2011-01-01

Analysis of previous literature on the role of food in life in France and the United States suggests some fundamental differences in attitudes which may generalize outside of the food domain. Questionnaire results from French and American adults suggest that, compared to the French, Americans emphasize quantity rather than quality in making choices, Americans have a higher preference for variety, and Americans usually prefer comforts (things that make life easier) over joys (unique things that make life interesting). The American preference for quantity over quality is discussed in terms of the American focus on abundance as opposed to the French preference for moderation. The American preference for variety is reflective of Americans’ more personal as opposed to communal food and other values. PMID:21845184

Broad Themes of Difference between French and Americans in Attitudes to Food and Other Life Domains: Personal Versus Communal Values, Quantity Versus Quality, and Comforts Versus Joys.

PubMed

Rozin, Paul; Remick, Abigail K; Fischler, Claude

2011-01-01

Analysis of previous literature on the role of food in life in France and the United States suggests some fundamental differences in attitudes which may generalize outside of the food domain. Questionnaire results from French and American adults suggest that, compared to the French, Americans emphasize quantity rather than quality in making choices, Americans have a higher preference for variety, and Americans usually prefer comforts (things that make life easier) over joys (unique things that make life interesting). The American preference for quantity over quality is discussed in terms of the American focus on abundance as opposed to the French preference for moderation. The American preference for variety is reflective of Americans' more personal as opposed to communal food and other values.

Attitudes toward emotions.

PubMed

Harmon-Jones, Eddie; Harmon-Jones, Cindy; Amodio, David M; Gable, Philip A

2011-12-01

The present work outlines a theory of attitudes toward emotions, provides a measure of attitudes toward emotions, and then tests several predictions concerning relationships between attitudes toward specific emotions and emotional situation selection, emotional traits, emotional reactivity, and emotion regulation. The present conceptualization of individual differences in attitudes toward emotions focuses on specific emotions and presents data indicating that 5 emotions (anger, sadness, joy, fear, and disgust) load on 5 separate attitude factors (Study 1). Attitudes toward emotions predicted emotional situation selection (Study 2). Moreover, attitudes toward approach emotions (e.g., anger, joy) correlated directly with the associated trait emotions, whereas attitudes toward withdrawal emotions (fear, disgust) correlated inversely with associated trait emotions (Study 3). Similar results occurred when attitudes toward emotions were used to predict state emotional reactivity (Study 4). Finally, attitudes toward emotions predicted specific forms of emotion regulation (Study 5).

Positive emotions, spirituality and the practice of psychiatry.

PubMed

Vaillant, George E

2008-01-01

THIS PAPER PROPOSES THAT EIGHT POSITIVE EMOTIONS: awe, love (attachment), trust (faith), compassion, gratitude, forgiveness, joy and hope constitute what we mean by spirituality. These emotions have been grossly ignored by psychiatry. The two sciences that I shall employ to demonstrate this definition of spirituality will be ethology and neuroscience. They are both very new. I will argue that spirituality is not about ideas, sacred texts and theology; rather, spirituality is all about emotion and social connection.Specific religions, for all their limitations, are often the portal through which positive emotions are brought into conscious attention. Neither Freud nor psychiatric textbooks ever mention emotions like joy and gratitude. Hymns and psalms give these emotions pride of place. Our whole concept of psychotherapy might change if clinicians set about enhancing positive emotions rather than focusing only on negative emotions.

Positive Emotions, Spirituality and the Practice of Psychiatry

PubMed Central

Vaillant, George E.

2008-01-01

This paper proposes that eight positive emotions: awe, love (attachment), trust (faith), compassion, gratitude, forgiveness, joy and hope constitute what we mean by spirituality. These emotions have been grossly ignored by psychiatry. The two sciences that I shall employ to demonstrate this definition of spirituality will be ethology and neuroscience. They are both very new. I will argue that spirituality is not about ideas, sacred texts and theology; rather, spirituality is all about emotion and social connection. Specific religions, for all their limitations, are often the portal through which positive emotions are brought into conscious attention. Neither Freud nor psychiatric textbooks ever mention emotions like joy and gratitude. Hymns and psalms give these emotions pride of place. Our whole concept of psychotherapy might change if clinicians set about enhancing positive emotions rather than focusing only on negative emotions. PMID:22013350

An Improved Genetic Fuzzy Logic Control Method to Reduce the Enlargement of Coal Floor Deformation in Shearer Memory Cutting Process

PubMed Central

Tan, Chao; Xu, Rongxin; Wang, Zhongbin; Si, Lei; Liu, Xinhua

2016-01-01

In order to reduce the enlargement of coal floor deformation and the manual adjustment frequency of rocker arms, an improved approach through integration of improved genetic algorithm and fuzzy logic control (GFLC) method is proposed. The enlargement of coal floor deformation is analyzed and a model is built. Then, the framework of proposed approach is built. Moreover, the constituents of GA such as tangent function roulette wheel selection (Tan-RWS) selection, uniform crossover, and nonuniform mutation are employed to enhance the performance of GFLC. Finally, two simulation examples and an industrial application example are carried out and the results indicate that the proposed method is feasible and efficient. PMID:27217824

The Red Atrapa Sismos (Quake Catcher Network in Mexico): assessing performance during large and damaging earthquakes.

USGS Publications Warehouse

Dominguez, Luis A.; Yildirim, Battalgazi; Husker, Allen L.; Cochran, Elizabeth S.; Christensen, Carl; Cruz-Atienza, Victor M.

2015-01-01

Each volunteer computer monitors ground motion and communicates using the Berkeley Open Infrastructure for Network Computing (BOINC, Anderson, 2004). Using a standard short‐term average, long‐term average (STLA) algorithm (Earle and Shearer, 1994; Cochran, Lawrence, Christensen, Chung, 2009; Cochran, Lawrence, Christensen, and Jakka, 2009), volunteer computer and sensor systems detect abrupt changes in the acceleration recordings. Each time a possible trigger signal is declared, a small package of information containing sensor and ground‐motion information is streamed to one of the QCN servers (Chung et al., 2011). Trigger signals, correlated in space and time, are then processed by the QCN server to look for potential earthquakes.

Determination of Particular Endogenous Fires Hazard Zones in Goaf with Caving of Longwall

NASA Astrophysics Data System (ADS)

Tutak, Magdalena; Brodny, Jaroslaw

2017-12-01

Hazard of endogenous fires is one of the basic and common presented occupational safety hazards in coal mine in Poland and in the world. This hazard means possibility of coal self-ignition as the result of its self-heating process in mining heading or its surrounding. In underground coal-mining during ventilating of operating longwalls takes place migration of parts of airflow to goaf with caving. In a case when in these goaf a coal susceptible to selfignition occurs, then the airflow through these goaf may influence on formation of favourable conditions for coal oxidation and subsequently to its self-heating and self-ignition. Endogenous fire formed in such conditions can pose a serious hazard for the crew and for continuity of operation of mining plant. From the practical point of view, a very significant meaning has determination of the zone in the goaf with caving, in which necessary conditions for occurrence of endogenous fire are fulfilled. In the real conditions determination of such a zone is practically impossible. Therefore, authors of paper developed a methodology of determination of this zone basing on the results of modelling tests. This methodology includes a development of model of tested area, determination of boundary conditions and carrying out the simulation calculations. Based on the obtained results particular hazardous zone of endogenous fire is determined. A base for development of model of investigated region and selection of boundary conditions are the results of real tests. In the paper fundamental assumption of developed methodology, particularly in a range of assumed hazard criterion and sealing coefficient of goaf with caving were discussed. Also a mathematical model of gas flow through the porous media was characterized. Example of determination of a zone particularly endangered by endogenous fire for real system of mining heading in one of the hard coal mine was presented. Longwall ventilated in the „Y” system was subjected to the tests. For determined mining-geological conditions, the critical value of velocity of airflow and oxygen concentration in goaf, conditioning initiation of coal oxidation process were determined. For calculations ANSYS Fluent software based on finite volume method, which enable very precisely to determine the physical and chemical air and parameters at any point of tested mining heading and goaf with caving was used. Such precisely determination of these parameters on the base of the test in real conditions is practically impossible. Obtained results allowed to take early proper actions in order to limit the occurrence of endogenous fire. One can conclude, that presented methodology creates great possibilities of practical application of modelling tests for improvement of the occupational safety state in mine.

75 FR 47458 - TRICARE; Diabetic Education

Federal Register 2010, 2011, 2012, 2013, 2014

2010-08-06

... counseling for socioeconomic purposes, stress management, lifestyle modification. Services provided by a...: Joy Saly, Medical Benefits and Reimbursement Branch, TRICARE Management Activity, telephone (303) 676... education. Diabetes self-management training (DSMT) is an interactive, collaborative process involving...

New Dad: Tips to Help Manage Stress

MedlinePlus

Healthy Lifestyle Infant and toddler health Becoming a new dad can bring joy — and stress. Find out ... your newborn. By Mayo Clinic Staff Becoming a new dad can be an exciting and overwhelming experience. ...

Hidden Risks of Erectile Dysfunction "Treatments" Sold Online

MedlinePlus

... screen and stop these shipments from entering U.S. commerce," says Huascar Batista, team leader of OOC's Import- ... Free Rhino V Max V.Max True Man Energy Max HS Joy of Love NaturalUp Blue Steel ...

From the Director: The Joy of Science, the Courage of Research

MedlinePlus

... Dr. Zerhouni , one that combines an appreciation of biological complexity with the fearless search for scientific knowledge. ... techniques for greater understanding of the complexity of biological systems. The one thing that has driven my ...

Books for Summer Reading.

ERIC Educational Resources Information Center

Phi Delta Kappan, 1992

1992-01-01

Advises administrators to use their summers to relax and recharge their intellectual batteries. Reading suggestions include Edith Wharton's "House of Mirth," Charlotte Perkins Gilman's "The Yellow Wallpaper," Amy Tan's "Joy Luck Club," China Achebe's "Things Fall Apart," Paule Marshall's "The Chosen…

Positive and Negative Emotions Underlie Motivation for L2 Learning

ERIC Educational Resources Information Center

MacIntyre, Peter D.; Vincze, Laszlo

2017-01-01

The role of basic emotions in SLA has been underestimated in both research and pedagogy. The present article examines 10 positive emotions ("joy," "gratitude," "serenity," "interest," "hope," "pride," "amusement," "inspiration," "awe," and "love")…

There Is No Joy like Malicious Joy: Schadenfreude in Young Children

PubMed Central

Shamay-Tsoory, Simone G.; Ahronberg-Kirschenbaum, Dorin; Bauminger-Zviely, Nirit

2014-01-01

Human emotions are strongly shaped by the tendency to compare the relative state of oneself to others. Although social comparison based emotions such as jealousy and schadenfreude (pleasure in the other misfortune) are important social emotions, little is known about their developmental origins. To examine if schadenfreude develops as a response to inequity aversion, we assessed the reactions of children to the termination of unequal and equal triadic situations. We demonstrate that children as early as 24 months show signs of schadenfreude following the termination of an unequal situation. Although both conditions involved the same amount of gains, the children displayed greater positive expressions following the disruption of the unequal as compared to the equal condition, indicating that inequity aversion can be observed earlier than reported before. These results support an early evolutionary origin of inequity aversion and indicate that schadenfreude has evolved as a response to unfairness. PMID:24988446

Microcomputer network for control of a continuous mining machine. Information circular/1993

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schiffbauer, W.H.

1993-01-01

The paper details a microcomputer-based control and monitoring network that was developed in-house by the U.S. Bureau of Mines, and installed on a Joy 14 continuous mining machine. The network consists of microcomputers that are connected together via a single twisted pair cable. Each microcomputer was developed to provide a particular function in the control process. Machine-mounted microcomputers in conjunction with the appropriate sensors provide closed-loop control of the machine, navigation, and environmental monitoring. Off-the-machine microcomputers provide remote control of the machine, sensor status, and a connection to the network so that external computers can access network data and controlmore » the continuous mining machine. Although the network was installed on a Joy 14 continuous mining machine, its use extends beyond it. Its generic structure lends itself to installation onto most mining machine types.« less

Psychological effects of thought acceleration.

PubMed

Pronin, Emily; Jacobs, Elana; Wegner, Daniel M

2008-10-01

Six experiments found that manipulations that increase thought speed also yield positive affect. These experiments varied in both the methods used for accelerating thought (i.e., instructions to brainstorm freely, exposure to multiple ideas, encouragement to plagiarize others' ideas, performance of easy cognitive tasks, narration of a silent video in fast-forward, and experimentally controlled reading speed) and the contents of the thoughts that were induced (from thoughts about money-making schemes to thoughts of five-letter words). The results suggested that effects of thought speed on mood are partially rooted in the subjective experience of thought speed. The results also suggested that these effects can be attributed to the joy-enhancing effects of fast thinking (rather than only to the joy-killing effects of slow thinking). This work is inspired by observations of a link between "racing thoughts" and euphoria in cases of clinical mania, and potential implications of that observed link are discussed. (c) 2008 APA, all rights reserved

KENNEDY SPACE CENTER, FLA. - On a tour of the Orbiter Processing Facility, Center Director Jim Kennedy (left) listens to Kathy Laufenberg, Orbiter Airframe Engineering ground area manager, with United Space Alliance, about corrosion work being done on the external tank door of orbiter Endeavour. On either side of Laufenberg are Tom Roberts, Airframe Engineering System specialist, also with USA, and Joy Huff, with KSC Space Shuttle Processing. Endeavour is in its Orbiter Major Modification period, which began in December 2003.

NASA Image and Video Library

2004-02-25

KENNEDY SPACE CENTER, FLA. - On a tour of the Orbiter Processing Facility, Center Director Jim Kennedy (left) listens to Kathy Laufenberg, Orbiter Airframe Engineering ground area manager, with United Space Alliance, about corrosion work being done on the external tank door of orbiter Endeavour. On either side of Laufenberg are Tom Roberts, Airframe Engineering System specialist, also with USA, and Joy Huff, with KSC Space Shuttle Processing. Endeavour is in its Orbiter Major Modification period, which began in December 2003.

Psychiatry, religion, positive emotions and spirituality.

PubMed

Vaillant, George E

2013-12-01

This paper proposes that eight positive emotions: awe, love/attachment, trust/faith, compassion, gratitude, forgiveness, joy and hope constitute what we mean by spirituality. These emotions have been grossly ignored by psychiatry. The two sciences that I shall employ to demonstrate this definition of spirituality will be ethology and neuroscience. They are both very new. I will argue that spirituality is not about ideas, sacred texts and theology. Rather, spirituality is all about emotion and social connection that are more dependent on the limbic system than the cortex. Specific religions, for all their limitations, are often the portal through which positive emotions are brought into conscious attention. Neither Freud nor psychiatric textbooks ever mention emotions like joy and gratitude. Hymns and psalms give these emotions pride of place. Our whole concept of psychotherapy might change, if clinicians set about enhancing positive emotions, rather than focusing only on the negative ones. Copyright © 2013 Elsevier B.V. All rights reserved.

Determination of the Zone Endangered by Methane Explosion in Goaf with Caving of Longwalls Ventilated on "Y" System

NASA Astrophysics Data System (ADS)

Brodny, Jarosław; Tutak, Magdalena

2016-12-01

One of the most dangerous and most commonly present risks in hard coal mines is methane hazard. During exploitation by longwall system with caving, methane is emitted to mine heading from the mined coal and coal left in a pile. A large amount of methane also flows from neighboring seams through cracks and fissures formed in rock mass. In a case of accumulation of explosive methane concentration in goaf zone and with appropriate oxygen concentration and occurrence of initials (e.g. spark or endogenous fire), it may come to the explosion of this gas. In the paper there are presented results of numerical analysis of mixture of air and methane streams flow through the real heading system of a mine, characterized by high methane hazard. The aim of the studies was to analyze the ventilation system of considered heading system and determination of braking zones in goaf zone, in which dangerous and explosive concertation of methane can occur with sufficient oxygen concentration equal to at least 12%. Determination of position of these zones is necessary for the selection of appropriate parameters of the ventilation system to ensure safety of the crew. Analysis of the scale of methane hazard allows to select such a ventilation system of exploitation and neighboring headings that ensures chemical composition of mining atmosphere required by regulation, and required efficiency of methane drainage. The obtained results clearly show that numerical methods, combined with the results of tests in real conditions can be successfully used for the analysis of variants of processes related to ventilation of underground mining, and also in the analysis of emergency states.

Development of ZL400 Mine Cooling Unit Using Semi-Hermetic Screw Compressor and Its Application on Local Air Conditioning in Underground Long-Wall Face

NASA Astrophysics Data System (ADS)

Chu, Zhaoxiang; Ji, Jianhu; Zhang, Xijun; Yan, Hongyuan; Dong, Haomin; Liu, Junjie

2016-12-01

Aiming at heat injuries occurring in the process of deep coal mining in China, a ZL400 mine-cooling unit employing semi-hermetic screw compressor with a cooling capacity of 400 kW is developed. This paper introduced its operating principle, structural characteristics and technical indexes. By using the self-built testing platform, some parameters for indication of its operation conditions were tested on the ground. The results show that the aforementioned cooling unit is stable in operation: cooling capacity of the unit was 420 kW underground-test conditions, while its COP (coefficient of performance) reached 3.4. To address the issue of heat injuries existing in No. 16305 U-shaped long-wall ventilation face of Jining No. 3 coal mine, a local air conditioning system was developed with ZL400 cooling unit as the system's core. The paper presented an analysis of characteristics of the air current flowing in the air-mixing and cooling mode of ZL400 cooling unit used in air intake way. Through i-d patterns we described the process of the airflow treatment, such as cooling, mixing and heating, etc. The cooling system decreased dry bulb temperature on working face by 3°C on average and 3.8°C at most, while lowered the web bulb temperature by 3.6°C on average and 4.8°C at most. At the same time, it reduced relative humidity by 5% on average and 8.6% at most. The field application of the ZL400 cooling unit had gain certain effects in air conditioning and provided support for the solution of mine heat injuries in China in terms of technology and equipment.

Systematic on-site monitoring of compliance dust samples

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grayson, R.L.; Gandy, J.R.

1996-12-31

Maintaining compliance with U.S. respirable coal mine dust standards can be difficult on high-productivity longwall panels. Comprehensive and systematic analysis of compliance dust sample data, coupled with access to the U.S. Bureau of Mines (USBM) DUSTPRO, can yield important information for use in maintaining compliance. The objective of this study was to develop and apply a customized software for the collection, storage, modification, and analysis of respirable dust data while providing for flexible export of data and linking with the USBM`s expert advisory system on dust control. An executable, IBM-compatible software was created and customized for use by the personmore » in charge of collecting, submitting, analyzing, and monitoring respirable dust compliance samples. Both descriptive statistics and multiple regression analysis were incorporated. The software allows ASCH files to be exported and directly links with DUSTPRO. After development and validation of the software, longwall compliance data from two different mines was analyzed to evaluate the value of the software. Data included variables on respirable dust concentration, tons produced, the existence of roof/floor rock (dummy variable), and the sampling cycle (dummy variables). Because of confidentiality, specific data will not be presented, only the equations and ANOVA tables. The final regression models explained 83.8% and 61.1% of the variation in the data for the two panels. Important correlations among variables within sampling cycles showed the value of using dummy variables for sampling cycles. The software proved flexible and fast for its intended use. The insights obtained from use improved the systematic monitoring of respirable dust compliance data, especially for pinpointing the most effective dust control methods during specific sampling cycles.« less

Supporting technology of roadside in gob-side entry in 110 longwall mining method

NASA Astrophysics Data System (ADS)

He, Manchao; Guo, Pengfei; Chen, Shangyuan; Gao, Yubing; Wang, Yajun

2017-05-01

To get better results of shaping roadside in 110 longwall mining method, the roadside support can be reasonably choose and designed through theoretical analysis, engineering test and other methods. The roadway support need to be designed based on the mining height and influence of mining pressure, and it is necessary to consider the "limited deformation" but also "given deformation". Because of the small mining high and short time under mining pressure effect in thin coal seam, roadside support can meet the requirements of block rock from gob using I-steel, but I-steel can't satisfy the deformation of roadway roof and easily lead to I-steel flexural buckling. In that condition we should use the U-steel that can compatible deformation with subsidence of roadway roof and enough torque in overlapping part between tow U-steel should be given when the U-steel is used to support gangue from gob and the U steel assembling two cards can coordinal deformation in dynamic pressure area keeping constant resistance with the deformation of roadway roof and can get a good effect. Through field test, due to the great impact force of the gangue from gob, single props and I-steel and U-steel are easily knocked down when the mining height is more than 4m. For large mining height, gangue blocking hydraulic support is designed and developed which can guarantee the stability and integrity of the roadway roof in the dynamic pressure area and can prevent the impact of gangue from gob. So it has better effect of forming roadway side using gangue from gob. According to above classification, the field experiments were carried out and obtained satisfactory results.

Automated decoding of facial expressions reveals marked differences in children when telling antisocial versus prosocial lies.

PubMed

Zanette, Sarah; Gao, Xiaoqing; Brunet, Megan; Bartlett, Marian Stewart; Lee, Kang

2016-10-01

The current study used computer vision technology to examine the nonverbal facial expressions of children (6-11years old) telling antisocial and prosocial lies. Children in the antisocial lying group completed a temptation resistance paradigm where they were asked not to peek at a gift being wrapped for them. All children peeked at the gift and subsequently lied about their behavior. Children in the prosocial lying group were given an undesirable gift and asked if they liked it. All children lied about liking the gift. Nonverbal behavior was analyzed using the Computer Expression Recognition Toolbox (CERT), which employs the Facial Action Coding System (FACS), to automatically code children's facial expressions while lying. Using CERT, children's facial expressions during antisocial and prosocial lying were accurately and reliably differentiated significantly above chance-level accuracy. The basic expressions of emotion that distinguished antisocial lies from prosocial lies were joy and contempt. Children expressed joy more in prosocial lying than in antisocial lying. Girls showed more joy and less contempt compared with boys when they told prosocial lies. Boys showed more contempt when they told prosocial lies than when they told antisocial lies. The key action units (AUs) that differentiate children's antisocial and prosocial lies are blink/eye closure, lip pucker, and lip raise on the right side. Together, these findings indicate that children's facial expressions differ while telling antisocial versus prosocial lies. The reliability of CERT in detecting such differences in facial expression suggests the viability of using computer vision technology in deception research. Copyright © 2016 Elsevier Inc. All rights reserved.

Maternal depression and anxiety, social synchrony, and infant regulation of negative and positive emotions.

PubMed

Granat, Adi; Gadassi, Reuma; Gilboa-Schechtman, Eva; Feldman, Ruth

2017-02-01

Maternal postpartum depression (PPD) exerts long-term negative effects on infants; yet the mechanisms by which PPD disrupts emotional development are not fully clear. Utilizing an extreme-case design, 971 women reported symptoms of depression and anxiety following childbirth and 215 high and low on depressive symptomatology reported again at 6 months. Of these, mothers diagnosed with major depressive disorder (n = 22), anxiety disorders (n = 19), and controls (n = 59) were visited at 9 months. Mother-infant interaction was microcoded for maternal and infant's social behavior and synchrony. Infant negative and positive emotional expression and self-regulation were tested in 4 emotion-eliciting paradigms: anger with mother, anger with stranger, joy with mother, and joy with stranger. Infants of depressed mothers displayed less social gaze and more gaze aversion. Gaze and touch synchrony were lowest for depressed mothers, highest for anxious mothers, and midlevel among controls. Infants of control and anxious mothers expressed less negative affect with mother compared with stranger; however, maternal presence failed to buffer negative affect in the depressed group. Maternal depression chronicity predicted increased self-regulatory behavior during joy episodes, and touch synchrony moderated the effects of PPD on infant self-regulation. Findings describe subtle microlevel processes by which maternal depression across the postpartum year disrupts the development of infant emotion regulation and suggest that diminished social synchrony, low differentiation of attachment and nonattachment contexts, and increased self-regulation during positive moments may chart pathways for the cross-generational transfer of emotional maladjustment from depressed mothers to their infants. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

ACTIVE-REGION TILT ANGLES: MAGNETIC VERSUS WHITE-LIGHT DETERMINATIONS OF JOY'S LAW

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wang, Y.-M.; Colaninno, R. C.; Baranyi, T.

2015-01-01

The axes of solar active regions are inclined relative to the east-west direction, with the tilt angle tending to increase with latitude ({sup J}oy's law{sup )}. Observational determinations of Joy's law have been based either on white-light images of sunspot groups or on magnetograms, where the latter have the advantage of measuring directly the physically relevant quantity (the photospheric field), but the disadvantage of having been recorded routinely only since the mid-1960s. White-light studies employing the historical Mount Wilson (MW) database have yielded tilt angles that are smaller and that increase less steeply with latitude than those obtained from magneticmore » data. We confirm this effect by comparing sunspot-group tilt angles from the Debrecen Photoheliographic Database with measurements made by Li and Ulrich using MW magnetograms taken during cycles 21-23. Whether white-light or magnetic data are employed, the median tilt angles significantly exceed the mean values, and provide a better characterization of the observed distributions. The discrepancy between the white-light and magnetic results is found to have two main sources. First, a substantial fraction of the white-light ''tilt angles'' refer to sunspots of the same polarity. Of greater physical significance is that the magnetograph measurements include the contribution of plage areas, which are invisible in white-light images but tend to have greater axial inclinations than the adjacent sunspots. Given the large uncertainties inherent in both the white-light and the magnetic measurements, it remains unclear whether any systematic relationship exists between tilt angle and cycle amplitude during cycles 16-23.« less

Easy Does It: Dealing with Stress

Cancer.gov

Pregnancy, having a baby, and being a new parent can bring tremendous joy. But it also can be a very stressful time, especially if you are also trying to quit smoking. You might be facing new things that stress you out:

Sharing her passion with others.

PubMed

Henze, Tonja Marie

2013-10-22

Tonja Marie Henze, MS, CMAR, RLATg, Facilities Coordinator, Division of Animal Resources, University of Illinois, Urbana, IL. Ms. Henze talks about the joys and challenges of her job and realizing the importance of speaking out about her passion for laboratory animal care.

Casting for King Fish, Tickling for Trout

ERIC Educational Resources Information Center

Richardson, Jonathan L.

2007-01-01

This autobiographical essay by a retired biology professor reminds teachers and students that pursuing a demanding career specialty--even a very satisfying one--need not stifle detours into byways of speculative curiosity where one can be "surprised by joy."

The Future of Earthquake Relocation Tools

NASA Astrophysics Data System (ADS)

Lecocq, T.; Caudron, C.

2010-12-01

Many scientists around the world use earthquake relocation software for their research. Some use "known" software like HYPODD or COMPLOC, while others use their own algorithms and codes. Often, beginners struggle to get one tool running or to properly configure input parameters. This Poster will be witness of debates that will take place during the Meeting, for example adressing questions like "Which program for which application?" ; "Standardized In/Outs?" , "Tectonic / Volcanic / Other ?" ; "All programs inside one single Super-Package?" ; "Common/Base Bibliography for the Relocation-Beginner?" ; "Continuous or Layered Velocity Model?" etc... We will also present the scheme of a Super-Package we are working on, grouping HYPODD [Waldhauser 2001], COMPLOC [Lin&Shearer 2006], LOTOS [Koulakov 2009] ; allowing standard in/outs for the 3 programs, and thus, the comparison of their outputs.

[The organization of the comprehensive prevention of urolithiasis among ferrous metallurgy workers].

PubMed

Egorova, A M

2009-01-01

The purpose of study is to evaluate the effectiveness of the set of preventive measures as applied to 321 workers of basic ferrous metallurgy specialties (steel makers, mill men, hot metal shearers). During the clinical examination all the workers were divided on three groups: the workers without any pathology (11.83%, the first group), the workers with metabolic disorders only without urolitiasis (64.81%, the second group) and the workers with urolitiasis diagnosis approved by ultrasonography (23.36%, the third group). The effectiveness of rehabilitation measures was evaluated during half a year (diet therapy, drinking regimen, medicinal plants treatment). After the course of preventive measures was applied the overall health condition of most workers ameliorated and the number of workers with urolitiasis development risk factors reliably decreased up to 6-12%.

Bottomless barrel-sponge species in the Indo-Pacific?

PubMed

Setiawan, Edwin; Voogd, Nicole J De; Wörheide, Gert; Erpenbeck, Dirk

2016-07-06

The use of nuclear markers, in addition to traditional mitochondrial markers, helps to clarify hidden patterns of genetic structure in natural populations (Palumbi & Baker, 1994). This is particularly evident among demosponges that possess slow mitochondrial evolutionary rates compared to Bilateria, where nuclear intron markers can aid in the understanding of shallow level phylogenetic relationships (Shearer et al., 2002). Ideally, these nuclear markers (i) are evolutionary well-conserved across different lineages, (ii) produce amplicons holding a number of sites with sufficient variability to answer the relevant phylogenetic question, (iii) derive from single copy genes (see review in Zhang & Hewitt, 2003). A popular method to amplify intron markers uses EPIC (Exon-Primed, Intron-Crossing) primers that anneal to the more conserved flanking exon regions and subsequently bridge the intron during amplification (Palumbi & Baker, 1994).

Cycling To Awareness.

ERIC Educational Resources Information Center

Kozak, Stan

1999-01-01

Encourages environmental and outdoor educators to promote bicycling. In the community and the curriculum, cycling connects environmental issues, health and fitness, law and citizenship, appropriate technology, and the joy of being outdoors. Describes the Ontario Cycling Association's cycling strategy and its four components: school cycling…

Returning to the Self Psychoanalytically.

ERIC Educational Resources Information Center

Tingle, Nick

1991-01-01

Discusses the importance (in Heinz Kohut's post-Freudian conception) of narcissism in postmodern pedagogy. Maintains that the affects (despair, depression, anger, joy) are the means by which students most fully understand the implications for their self-understanding of what they are being taught. (SR)

Radically Healing Black Lives: A Love Note to Justice.

PubMed

Ginwright, Shawn A

2015-01-01

This chapter describes how present conditions in Black communities have fostered the development of new modes of youth leadership that focus on hope, love, and joy, and are ultimately restorative and redemptive. © 2015 Wiley Periodicals, Inc., A Wiley Company.

From Boffing to Body Flying, UCSC Students Are Discovering the Joys of New Athletics

ERIC Educational Resources Information Center

College and University Business, 1973

1973-01-01

The new athletic program at the University of California, Santa Cruz, is designed to provide noncompetitive, nonspectator physical activities and recreational opportunities, including jogging, sailing, mountaineering, aikido, backpacking, kayaking and body flying. (Author/PG)

Underground coal mine instrumentation and test

NASA Technical Reports Server (NTRS)

Burchill, R. F.; Waldron, W. D.

1976-01-01

The need to evaluate mechanical performance of mine tools and to obtain test performance data from candidate systems dictate that an engineering data recording system be built. Because of the wide range of test parameters which would be evaluated, a general purpose data gathering system was designed and assembled to permit maximum versatility. A primary objective of this program was to provide a specific operating evaluation of a longwall mining machine vibration response under normal operating conditions. A number of mines were visited and a candidate for test evaluation was selected, based upon management cooperation, machine suitability, and mine conditions. Actual mine testing took place in a West Virginia mine.

Fault tolerant attitude sensing and force feedback control for unmanned aerial vehicles

NASA Astrophysics Data System (ADS)

Jagadish, Chirag

Two aspects of an unmanned aerial vehicle are studied in this work. One is fault tolerant attitude determination and the other is to provide force feedback to the joy-stick of the UAV so as to prevent faulty inputs from the pilot. Determination of attitude plays an important role in control of aerial vehicles. One way of defining the attitude is through Euler angles. These angles can be determined based on the measurements of the projections of the gravity and earth magnetic fields on the three body axes of the vehicle. Attitude determination in unmanned aerial vehicles poses additional challenges due to limitations of space, payload, power and cost. Therefore it provides for almost no room for any bulky sensors or extra sensor hardware for backup and as such leaves no room for sensor fault issues either. In the face of these limitations, this study proposes a fault tolerant computing of Euler angles by utilizing multiple different computation methods, with each method utilizing a different subset of the available sensor measurement data. Twenty-five such methods have been presented in this document. The capability of computing the Euler angles in multiple ways provides a diversified redundancy required for fault tolerance. The proposed approach can identify certain sets of sensor failures and even separate the reference fields from the disturbances. A bank-to-turn maneuver of the NASA GTM UAV is used to demonstrate the fault tolerance provided by the proposed method as well as to demonstrate the method of determining the correct Euler angles despite interferences by inertial acceleration disturbances. Attitude computation is essential for stability. But as of today most UAVs are commanded remotely by human pilots. While basic stability control is entrusted to machine or the on-board automatic controller, overall guidance is usually with humans. It is therefore the pilot who sets the command/references through a joy-stick. While this is a good compromise between complete automation and complete human control, it still poses some unique challenges. Pilots of manned aircraft are present inside the cockpit of the aircraft they fly and thus have a better feel of the flying environment and also the limitations of the flight. The same might not be true for UAV pilots stationed on the ground. A major handicap is that visual feedback is the only one available for the UAV pilot. An additional parameter like force feedback on the remote control joy-stick can help the UAV pilot to physically feel the limitation of the safe flight envelope. This can make the flying itself easier and safer. A method proposed here is to design a joy-stick assembly with an additional actuator. This actuator is controlled so as to generate a force feedback on the joy-stick. The control developed for this system is such that the actuator allows free movement for the pilot as long as the UAV is within the safe flight envelope. On the other hand, if it is outside this safe range, the actuator opposes the pilot's applied torque and prevents him/her from giving erroneous commands to the UAV.

How to Give Professional Feedback

ERIC Educational Resources Information Center

Brookhart, Susan M.; Moss, Connie M.

2015-01-01

Professional learning "should be a joy," the authors write, "not an affliction." Feedback experts Brookhart and Moss show how professional feedback can best motivate educators to learn. Professional conversations should be dialogs between the teacher and the principal, and feedback should feed teacher professional learning…

The Joys of Liquid Nitrogen.

ERIC Educational Resources Information Center

Nolan, William T.; Gish, Thaddeus J.

1996-01-01

Presents 6 short experiments with liquid nitrogen that 12- and 13-year-old students can safely perform under close supervision. Helps the students in learning a number of basic chemical principles while spurring their curiosity and showing them how much fun chemistry can be. (JRH)

Tips from the Classroom.

ERIC Educational Resources Information Center

TESOL Journal, 1993

1993-01-01

Seven articles on classroom icebreakers are compiled: "Picture Stories and Other Opportunities" (Joy Egbert, Deborah Hanley, Rosemary Delaney); "Hey, What's Your Name" (Janet Leamy); "Surprise!" (Lynne Burgess); "Memory Game" (Sally Winn); "Picturesque" (Margaret Beiter); "The Name Game" (Jeanne-Marie Garcia); "Exercise the Body--And the Mind…

Royal london hospital set P28 plans 30th anniversary reunion.

PubMed

Sibthorpe, Fran

2013-04-03

Members of Set P28 at the Royal London Hospital who began their training in February 1980 are planning a reunion on July 27 in London. The venue will be announced later. Email fran-joy@hotmail.com for details.

The 3-D aftershock distribution of three recent M5~5.5 earthquakes in the Anza region,California

NASA Astrophysics Data System (ADS)

Zhang, Q.; Wdowinski, S.; Lin, G.

2011-12-01

The San Jacinto fault zone (SJFZ) exhibits the highest level of seismicity compared to other regions in southern California. On average, it produces four earthquakes per day, most of them at depth of 10-17 km. Over the past decade, an increasing seismic activity occurred in the Anza region, which included three M5~5.5 events and their aftershock sequences. These events occurred in 2001, 2005, and 2010. In this research we map the 3-D distribution of these three events to evaluate their rupture geometry and better understand the unusual deep seismic pattern along the SJFZ, which was termed "deep creep" (Wdowinski, 2009). We relocated 97,562 events from 1981 to 2011 in Anza region by applying the Source-Specific Station Term (SSST) method (Lin et al., 2006) and used an accurate 1-D velocity model derived from 3-D model of Lin et al (2007) and used In order to separate the aftershock sequence from background seismicity, we characterized each of the three aftershock sequences using Omori's law. Preliminary results show that all three sequences had a similar geometry of deep elongated aftershock distribution. Most aftershocks occurred at depth of 10-17 km and extended over a 70 km long segments of the SJFZ, centered at the mainshock hypocenters. A comparative study of other M5~5.5 mainshocks and their aftershock sequences in southern California reveals very different geometrical pattern, suggesting that the three Anza M5~5.5 events are unique and can be indicative of "deep creep" deformation processes. Reference 1.Lin, G.and Shearer,P.M.,2006, The COMPLOC earthquake location package,Seism. Res. Lett.77, pp.440-444. 2.Lin, G. and Shearer, P.M., Hauksson, E., and Thurber C.H.,2007, A three-dimensional crustal seismic velocity model for southern California from a composite event method,J. Geophys.Res.112, B12306, doi: 10.1029/ 2007JB004977. 3.Wdowinski, S. ,2009, Deep creep as a cause for the excess seismicity along the San Jacinto fault, Nat. Geosci.,doi:10.1038/NGEO684.

Non-expert listeners show decreased heart rate and increased blood pressure (fear bradycardia) in response to atonal music

PubMed Central

Proverbio, Alice M.; Manfrin, Luigi; Arcari, Laura A.; De Benedetto, Francesco; Gazzola, Martina; Guardamagna, Matteo; Lozano Nasi, Valentina; Zani, Alberto

2015-01-01

Previous studies suggested that listening to different types of music may modulate differently psychological mood and physiological responses associated with the induced emotions. In this study the effect of listening to instrumental classical vs. atonal contemporary music was examined in a group of 50 non-expert listeners. The subjects’ heart rate and diastolic and systolic blood pressure values were measured while they listened to music of different style and emotional typologies. Pieces were selected by asking a group of composers and conservatory professors to suggest a list of the most emotional music pieces (from Renaissance to present time). A total of 214 suggestions from 20 respondents were received. Then it was asked them to identify which pieces best induced in the listener feelings of agitation, joy or pathos and the number of suggested pieces per style was computed. Atonal pieces were more frequently indicated as agitating, and tonal pieces as joyful. The presence/absence of tonality in a musical piece did not affect the affective dimension of pathos (being touching). Among the most frequently cited six pieces were selected that were comparable for structure and style, to represent each emotion and style. They were equally evaluated as unfamiliar by an independent group of 10 students of the same cohort) and were then used as stimuli for the experimental session in which autonomic parameters were recorded. Overall, listening to atonal music (independent of the pieces’ emotional characteristics) was associated with a reduced heart rate (fear bradycardia) and increased blood pressure (both diastolic and systolic), possibly reflecting an increase in alertness and attention, psychological tension, and anxiety. This evidence fits with the results of the esthetical assessment showing how, overall, atonal music is perceived as more agitating and less joyful than tonal one. PMID:26579029

Letter to Dr. Felix Bronner

NASA Technical Reports Server (NTRS)

Greenleaf, John E.; Dalton, Bonnie (Technical Monitor)

2002-01-01

Dear Dr. Bronner: I have been reading in The Physiologist the letters from senior physiologists for many years with great interest. It is impressive that many of the respondents are still pursuing scientific endeavours in their 70's and some even in their 80's. The interesting task is to ponder the relative causative proportions of heredity and environment responsible. One wonders whether knowing something about physiology engenders longer and more productive lives? I suspect so because of the accompanying self-discipline. But another factor would seem to be the pervasive joy of working in this profession. I have been fortunate to be able to acquire the joy of physiology during my graduate studies at Illinois, and to have been able to carry it over here at NASA, Ames Research Center for the past 40 years. A truly academic style research environment at a federal research center is rare. The trick to a joyous research career is to overcome those ever-present slings and arrows of outrageous fortune with dignity whenever possible. To that end I have found solace and guidance in reading the history of warfare and its leaders, especially Sun Tsu's The Art of War and Clauswitz's On War. I became eligible for retirement in 1993, but to insure domestic tranquility and also the joy of pursuing my research hobby have continued working in the laboratory on human research. It is troubling to see that funding for individual scientists conducting human research is declining rapidly, along with their new ideas; perhaps the old ones are more comfortable. Hopefully I can provide a similar response when I'm 80! Thanks for your interest. Sincerely, John Greenleaf

Temporal Processing of Joyful and Disgusting Food Pictures by Women With an Eating Disorder

PubMed Central

Gagnon, Caroline; Bégin, Catherine; Laflamme, Vincent; Grondin, Simon

2018-01-01

The present study used the presentation of food pictures and judgements about their duration to assess the emotions elicited by food in women suffering from an eating disorder (ED). Twenty-three women diagnosed with an ED, namely anorexia (AN) or bulimia nervosa (BN), and 23 healthy controls (HC) completed a temporal bisection task and a duration discrimination task. Intervals were marked with emotionally pre-rated pictures of joyful and disgusting food, and pictures of neutral objects. The results showed that, in the bisection task, AN women overestimated the duration of food pictures in comparison to neutral ones. Also, compared to participants with BN, they perceived the duration of joyful food pictures as longer, and tended to overestimate the duration of the disgusting ones. These effects on perceived duration suggest that AN women experienced an intense reaction of fear when they were confronted to food pictures. More precisely, by having elevated the arousal level and activated the defensive system, food pictures seemed to have speeded up the rhythm of the AN participants’ internal clock, which led to an overestimation of images’ duration. In addition, the results revealed that, in both tasks, ED women presented a lower temporal sensitivity than HC, which was related to their ED symptomatology (i.e., BMI, restraint and concern) and, particularly, to their weaker cognitive abilities in terms of attention, processing speed and working memory. Considered all together, the findings of the present experiment highlight the role of fear and anxiety in the manifestations of AN and point out the importance of considering non-temporal factors in the interpretation of time perception performance. PMID:29681806

Comparison of the BackJoy SitSmart Relief and Spine Buddy LT1 H/C Ergonomic Chair Supports on Short-Term Neck and Back Pain.

PubMed

Ward, John; Coats, Jesse

2017-01-01

The purpose of this study was to perform a needs assessment to determine whether short-term use of BackJoy SitSmart Relief and Spine Buddy LT1 H/C chair supports influences neck, upper back, and lower back pain. Forty-eight college students (age, 27.5 ± 6.3 years; height, 1.72 ± 0.08 m; body mass, 78.7 ± 19.8 kg; time seated that day, 4.3 ± 2.8 hours; means ± SD) were recruited for this study. The Nordic Musculoskeletal Questionnaire was used to measure pain for the neck, upper back, and lower back regions. Subjects were randomized to sit in a stationary office chair for a single 12-minute period under 1 of 4 conditions: office chair only (control group), BackJoy SitSmart Relief and chair, freezer-cooled Spine Buddy LT1 H/C and chair, or microwave-heated Spine Buddy LT1 H/C and chair. Participants then completed a posttest Nordic Musculoskeletal Questionnaire. A between-within repeated-measures analysis of variance using the between-subject factor intervention (group) and within-subject factor time (baseline and posttest) was used to analyze study data. The main effect of time across the whole sample was statistically significant for neck (P = .000), upper back (P = .032), and lower back (P = .000) pain; however, there was no statistically significant interaction effect between intervention and time. Thus, as long as participants sat down and rested, symptoms improved similarly across the different groups. In this preliminary study, short-term and single use of a support product for an office chair had no additive effect on reducing neck and back pain. Copyright © 2016. Published by Elsevier Inc.

Temporal Processing of Joyful and Disgusting Food Pictures by Women With an Eating Disorder.

PubMed

Gagnon, Caroline; Bégin, Catherine; Laflamme, Vincent; Grondin, Simon

2018-01-01

The present study used the presentation of food pictures and judgements about their duration to assess the emotions elicited by food in women suffering from an eating disorder (ED). Twenty-three women diagnosed with an ED, namely anorexia (AN) or bulimia nervosa (BN), and 23 healthy controls (HC) completed a temporal bisection task and a duration discrimination task. Intervals were marked with emotionally pre-rated pictures of joyful and disgusting food, and pictures of neutral objects. The results showed that, in the bisection task, AN women overestimated the duration of food pictures in comparison to neutral ones. Also, compared to participants with BN, they perceived the duration of joyful food pictures as longer, and tended to overestimate the duration of the disgusting ones. These effects on perceived duration suggest that AN women experienced an intense reaction of fear when they were confronted to food pictures. More precisely, by having elevated the arousal level and activated the defensive system, food pictures seemed to have speeded up the rhythm of the AN participants' internal clock, which led to an overestimation of images' duration. In addition, the results revealed that, in both tasks, ED women presented a lower temporal sensitivity than HC, which was related to their ED symptomatology (i.e., BMI, restraint and concern) and, particularly, to their weaker cognitive abilities in terms of attention, processing speed and working memory. Considered all together, the findings of the present experiment highlight the role of fear and anxiety in the manifestations of AN and point out the importance of considering non-temporal factors in the interpretation of time perception performance.

Quality of life philosophy II: what is a human being?

PubMed

Ventegodt, Søren; Andersen, Niels Jørgen; Kromann, Maximilian; Merrick, Joav

2003-12-01

The human being is a complex matter and many believe that just trying to understand life and what it means to be human is a futile undertaking. We believe that we have to try to understand life and get a grip on the many faces of life, because it can be of great value to us to learn to recognize the fundamental principles of how life is lived to the fullest. Learning to recognize the good and evil forces of life helps us to make use of the good ones. To be human is to balance between hundreds of extremes. Sometimes we have to avoid these extremes, but at other times it seems we should pursue them, to better understand life. With our roots in medicine, we believe in the importance of love for better health. The secret of the heart is when reason and feelings meet and we become whole. Where reason is balanced perfectly by feelings and where mind and body come together in perfect unity, a whole new quality emerges, a quality that is neither feeling nor reason, but something deeper and more complete. In this paper, we outline only enough biology to clarify what the fundamental inner conflicts are about. The insight into these conflicts gives us the key to a great deal of the problems of life. To imagine pleasures greater than sensual pleasures seems impossible to most people. What could such a joy possibly be? But somewhere deep in life exists the finest sweetness, the greatest quality in life, the pure joy of being alive that emerges when we are fully present and life is in balance. This deep joy of life is what we call experiencing the meaning of life.

Non-expert listeners show decreased heart rate and increased blood pressure (fear bradycardia) in response to atonal music.

PubMed

Proverbio, Alice M; Manfrin, Luigi; Arcari, Laura A; De Benedetto, Francesco; Gazzola, Martina; Guardamagna, Matteo; Lozano Nasi, Valentina; Zani, Alberto

2015-01-01

Previous studies suggested that listening to different types of music may modulate differently psychological mood and physiological responses associated with the induced emotions. In this study the effect of listening to instrumental classical vs. atonal contemporary music was examined in a group of 50 non-expert listeners. The subjects' heart rate and diastolic and systolic blood pressure values were measured while they listened to music of different style and emotional typologies. Pieces were selected by asking a group of composers and conservatory professors to suggest a list of the most emotional music pieces (from Renaissance to present time). A total of 214 suggestions from 20 respondents were received. Then it was asked them to identify which pieces best induced in the listener feelings of agitation, joy or pathos and the number of suggested pieces per style was computed. Atonal pieces were more frequently indicated as agitating, and tonal pieces as joyful. The presence/absence of tonality in a musical piece did not affect the affective dimension of pathos (being touching). Among the most frequently cited six pieces were selected that were comparable for structure and style, to represent each emotion and style. They were equally evaluated as unfamiliar by an independent group of 10 students of the same cohort) and were then used as stimuli for the experimental session in which autonomic parameters were recorded. Overall, listening to atonal music (independent of the pieces' emotional characteristics) was associated with a reduced heart rate (fear bradycardia) and increased blood pressure (both diastolic and systolic), possibly reflecting an increase in alertness and attention, psychological tension, and anxiety. This evidence fits with the results of the esthetical assessment showing how, overall, atonal music is perceived as more agitating and less joyful than tonal one.

The mindful nurse leader: Improving processes and outcomes; restoring joy to nursing.

PubMed

Pipe, Teri; FitzPatrick, Kate; Doucette, Jeffrey N; Cotton, Amy; Arnow, Debra

2016-09-01

In this first installment of a three-part series on mindfulness, we describe a dynamic project aimed at elevating the importance of mindfulness, compassion, and presence as key competencies for professional nurses across the career span in all healthcare settings.

Old Wine into New Bottles.

ERIC Educational Resources Information Center

Crandall, G. Douglas

1997-01-01

Discusses how traditional lab exercises can be converted into investigative exercises. Describes an exercise on seed germination that has students design their own experiments based on their initial results. Involves students in the scientific process and allows them to experience the joys and disappointments of experimental work. (JRH)

The Journal of the Society for Accelerative Learning and Teaching. Volume 14, 1989.

ERIC Educational Resources Information Center

Journal of the Society for Accelerative Learning and Teaching, 1989

1989-01-01

These four 1989 issues of the journal of the Society for Accelerated Learning and Teaching (SALT) include the following articles: "Retraining Cognitive Abilities: Combining Suggestopedia with Cognitive Behavior Modification"; "Students Discover the Joy of Learning Through Suggestopedia"; "Elementary School Achievement…

Five Perspectives for Introducing Hemingway.

ERIC Educational Resources Information Center

Tillinghast, B. S., Jr.

1983-01-01

Suggests that the works of Ernest Hemingway can introduce young readers to (1) an intense expression of the joy of life, (2) heroic models, (3) original use of language, (4) a sharp sense of time and place, and (5) literature that can be understood at many levels. (MM)

The Fictive Voice in Science.

ERIC Educational Resources Information Center

Irwin, Jennifer Brown

1992-01-01

Discusses the importance of using children's literature to heighten children's appreciation of the wonder of nature. Focuses on three authors and a specific work from each: "Charlotte's Web" by E.B. White; "Joyful Noise" by Paul Fleischman; and "Julie of the Wolves" by Jean Craighead George. (MG)

The Joy of Fs: A Student Guide to Getting Lousy Grades.

ERIC Educational Resources Information Center

Brown, Charles J.

1983-01-01

Students who wish to get bad grades should daydream, not read their textbooks or study manuals, avoid note taking, and procrastinate on assignments. This "manual" is used in an introductory psychology class to modify students' habits and change mediocre classroom behavior. (CS)

Mapping aesthetic musical emotions in the brain.

PubMed

Trost, Wiebke; Ethofer, Thomas; Zentner, Marcel; Vuilleumier, Patrik

2012-12-01

Music evokes complex emotions beyond pleasant/unpleasant or happy/sad dichotomies usually investigated in neuroscience. Here, we used functional neuroimaging with parametric analyses based on the intensity of felt emotions to explore a wider spectrum of affective responses reported during music listening. Positive emotions correlated with activation of left striatum and insula when high-arousing (Wonder, Joy) but right striatum and orbitofrontal cortex when low-arousing (Nostalgia, Tenderness). Irrespective of their positive/negative valence, high-arousal emotions (Tension, Power, and Joy) also correlated with activations in sensory and motor areas, whereas low-arousal categories (Peacefulness, Nostalgia, and Sadness) selectively engaged ventromedial prefrontal cortex and hippocampus. The right parahippocampal cortex activated in all but positive high-arousal conditions. Results also suggested some blends between activation patterns associated with different classes of emotions, particularly for feelings of Wonder or Transcendence. These data reveal a differentiated recruitment across emotions of networks involved in reward, memory, self-reflective, and sensorimotor processes, which may account for the unique richness of musical emotions.

A reinforcement learning model of joy, distress, hope and fear

NASA Astrophysics Data System (ADS)

Broekens, Joost; Jacobs, Elmer; Jonker, Catholijn M.

2015-07-01

In this paper we computationally study the relation between adaptive behaviour and emotion. Using the reinforcement learning framework, we propose that learned state utility, ?, models fear (negative) and hope (positive) based on the fact that both signals are about anticipation of loss or gain. Further, we propose that joy/distress is a signal similar to the error signal. We present agent-based simulation experiments that show that this model replicates psychological and behavioural dynamics of emotion. This work distinguishes itself by assessing the dynamics of emotion in an adaptive agent framework - coupling it to the literature on habituation, development, extinction and hope theory. Our results support the idea that the function of emotion is to provide a complex feedback signal for an organism to adapt its behaviour. Our work is relevant for understanding the relation between emotion and adaptation in animals, as well as for human-robot interaction, in particular how emotional signals can be used to communicate between adaptive agents and humans.

Nonlinguistic vocalizations from online amateur videos for emotion research: A validated corpus.

PubMed

Anikin, Andrey; Persson, Tomas

2017-04-01

This study introduces a corpus of 260 naturalistic human nonlinguistic vocalizations representing nine emotions: amusement, anger, disgust, effort, fear, joy, pain, pleasure, and sadness. The recognition accuracy in a rating task varied greatly per emotion, from <40% for joy and pain, to >70% for amusement, pleasure, fear, and sadness. In contrast, the raters' linguistic-cultural group had no effect on recognition accuracy: The predominantly English-language corpus was classified with similar accuracies by participants from Brazil, Russia, Sweden, and the UK/USA. Supervised random forest models classified the sounds as accurately as the human raters. The best acoustic predictors of emotion were pitch, harmonicity, and the spacing and regularity of syllables. This corpus of ecologically valid emotional vocalizations can be filtered to include only sounds with high recognition rates, in order to study reactions to emotional stimuli of known perceptual types (reception side), or can be used in its entirety to study the association between affective states and vocal expressions (production side).

EMuJoy: software for continuous measurement of perceived emotions in music.

PubMed

Nagel, Frederik; Kopiez, Reinhard; Grewe, Oliver; Altenmüller, Eckart

2007-05-01

An adequate study of emotions in music and film should be based on the real-time measurement of self-reported data using a continuous-response method. The recording system discussed in this article reflects two important aspects of such research: First, for a better comparison of results, experimental and technical standards for continuous measurement should be taken into account, and second, the recording system should be open to the inclusion of multimodal stimuli. In light of these two considerations, our article addresses four basic principles of the continuous measurement of emotions: (1) the dimensionality of the emotion space, (2) data acquisition (e.g., the synchronization of media and the self-reported data), (3) interface construction for emotional responses, and (4) the use of multiple stimulus modalities. Researcher-developed software (EMuJoy) is presented as a freeware solution for the continuous measurement of responses to different media, along with empirical data from the self-reports of 38 subjects listening to emotional music and viewing affective pictures.

What is shared, what is different? Core relational themes and expressive displays of eight positive emotions.

PubMed

Campos, Belinda; Shiota, Michelle N; Keltner, Dacher; Gonzaga, Gian C; Goetz, Jennifer L

2013-01-01

Understanding positive emotions' shared and differentiating features can yield valuable insight into the structure of positive emotion space and identify emotion states, or aspects of emotion states, that are most relevant for particular psychological processes and outcomes. We report two studies that examined core relational themes (Study 1) and expressive displays (Study 2) for eight positive emotion constructs--amusement, awe, contentment, gratitude, interest, joy, love, and pride. Across studies, all eight emotions shared one quality: high positive valence. Distinctive core relational theme and expressive display patterns were found for four emotions--amusement, awe, interest, and pride. Gratitude was associated with a distinct core relational theme but not an expressive display. Joy and love were each associated with a distinct expressive display but their core relational themes also characterised pride and gratitude, respectively. Contentment was associated with a distinct expressive display but not a core relational theme. The implications of this work for the study of positive emotion are discussed.

Mapping Aesthetic Musical Emotions in the Brain

PubMed Central

Ethofer, Thomas; Zentner, Marcel; Vuilleumier, Patrik

2012-01-01

Music evokes complex emotions beyond pleasant/unpleasant or happy/sad dichotomies usually investigated in neuroscience. Here, we used functional neuroimaging with parametric analyses based on the intensity of felt emotions to explore a wider spectrum of affective responses reported during music listening. Positive emotions correlated with activation of left striatum and insula when high-arousing (Wonder, Joy) but right striatum and orbitofrontal cortex when low-arousing (Nostalgia, Tenderness). Irrespective of their positive/negative valence, high-arousal emotions (Tension, Power, and Joy) also correlated with activations in sensory and motor areas, whereas low-arousal categories (Peacefulness, Nostalgia, and Sadness) selectively engaged ventromedial prefrontal cortex and hippocampus. The right parahippocampal cortex activated in all but positive high-arousal conditions. Results also suggested some blends between activation patterns associated with different classes of emotions, particularly for feelings of Wonder or Transcendence. These data reveal a differentiated recruitment across emotions of networks involved in reward, memory, self-reflective, and sensorimotor processes, which may account for the unique richness of musical emotions. PMID:22178712

Communication, Social Justice, and Joyful Commitment

ERIC Educational Resources Information Center

Hartnett, Stephen John

2010-01-01

Combining an overview of the history of communication scholarship with lessons learned from 20 years of experience as a prison abolitionist and peace activist, Hartnett argues that the discipline of communication can be enriched intellectually and made more politically relevant by turning our efforts toward community service, problem-based…

Work-Leisure and the School

ERIC Educational Resources Information Center

Besag, Frank P.

1975-01-01

The author compares work and leisure and claims the former involves external rewards, is odious, and requires more time while the latter involves intrinsic value and is pursued for joy. Then he discusses leisurely education which would cancel grading, discipline, and age limits and would make schooling fun. (SE)

76 FR 72013 - Self-Regulatory Organizations; Municipal Securities Rulemaking Board; Notice of Filing of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-21

... Joy A. Howard, Principal, WM Financial Strategies, dated September 30, 2011 (``Howard Letter''); Mike Nicholas, Chief Executive Officer, Bond Dealers of America, dated September 30, 2010 (``BDA Letter... Counsel, Securities Industry and Financial Markets Association, dated September 30, 2011 (``SIFMA Letter...

Read for Joy!

ERIC Educational Resources Information Center

Quigg, Claudia

Designed for parents, this booklet provides parents with information about encouraging literacy in young children in the format of a children's book with illustrations from various works by noted children's illustrator Tomie dePaola. The booklet emphasizes the importance of reading to and with children, stressing that reading helps children learn…

Books for Summer Reading.

ERIC Educational Resources Information Center

Phi Delta Kappan, 1991

1991-01-01

To help replenish educators' supply of ideas, "Kappan" editors suggest several books for summer reading, including many noncurrent titles not specifically on education such as Peter Novick's "That Noble Dream," Joy Kogawa's "Obasan," Zora Neale Hurston's "Their Eyes Were Watching God," Kate Chopin's "The Awakening," Willa Cather's "My Antonia,"…

Books for Educators, Labor Partners, and Children

PubMed Central

Shilling, Teri

2005-01-01

In this column, reviewers offer perspectives and commentary on three books: From Telling to Teaching: A Dialogue Approach to Adult Learning by Joye Norris; The Pocket Doula: A Labor Partner's Guide to Surviving Childbirth by Christine Wallace; and My Mommy's Midwife by Trish Payne and Hayley Holland.

Educating for Wisdom and Compassion: Creating Conditions for Timeless Learning

ERIC Educational Resources Information Center

Miller, John P.

2005-01-01

Blending philosophy, research, and three decades of practice, the author offers an engaging discussion of essential principles of timeless learning, including attention, contemplation, connection, participation, responsibility, wholeness, and joy. Educators in today's schools can apply these principles, models, and methods to inform instruction in…

The Emotional Dimensions of the Problem-Solving Process.

ERIC Educational Resources Information Center

Hill, Barbara; And Others

1979-01-01

Predictable affective responses are evoked during each phase of a group or organizational problem-solving process. With the needs assessment phase come hope and energy; with goal-setting, confusion and dissatisfaction; with action planning, involvement and accomplishment; with implementation, "stage fright" and joy; with evaluation, pride or…

Music Is Key to Active, Happy Lives.

ERIC Educational Resources Information Center

Hoffman, Elizabeth

1995-01-01

Encapsulates a series of verbatim statements made by young musicians about the joy music has brought to their lives. The musicians, all students at Black Mountain Middle School in San Diego, California, exhibit a wide range of responses discussing their commitment, hard work, and sense of accomplishment. (MJP)

Exploring the Entanglement of Personal Epistemologies and Emotions in Students' Thinking

ERIC Educational Resources Information Center

Gupta, Ayush; Elby, Andrew; Danielak, Brian A.

2018-01-01

Evidence from psychology, cognitive science, and neuroscience suggests that cognition and emotions are coupled. Education researchers have also documented correlations between emotions (such as joy, anxiety, fear, curiosity, boredom) and academic performance. Nonetheless, most research on students' reasoning and conceptual change within the…

Chrysalis

ERIC Educational Resources Information Center

Marsh, John

1977-01-01

In an outpouring of metaphysical anguish, Adrian Redman exhorts his companion, his own pilgrim self, and an uncompassionate society to forego the dichotomy of creativity/conformity--the necessity of absolute choice--in favor of spontaneity, freedom, and joy in the unique development of each individual from a (metaphorical) pupa to a butterfly.…

New England University Transportation Center : Annual Report : 2007-2008 / Year 20

DOT National Transportation Integrated Search

2009-10-16

The joy of research is often in the doing; but the real objective of research and a focused passion of the task should be how the work will improve the nation's quality of life. Transportation systems are facing disruptive changes in technology, demo...

The Joy of Moving, Singing, and Being Silly.

ERIC Educational Resources Information Center

Liebler, Scott

1997-01-01

Explains how moving, singing, and having fun build character, confidence, and coordination while helping children grow up feeling good about themselves. These activities provide an integrated, multisensory approach to learning. Employing a variety of fun and effective activities also helps children release stress and tension. (TJQ)

76 FR 58202 - TRICARE; TRICARE Sanction Authority for Third-Party Billing Agents

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-20

..., TRICARE Management Activity (TMA), or designee, with the authority to sanction third-party billing agents... instructions for submitting comments. Mail: Federal Docket Management System Office, 4800 Mark Center Drive.... Joy Saly, TRICARE Management Activity, Medical Benefits and Reimbursement Branch, telephone (303) 676...

Joyful Learning in Kindergarten. Revised Edition.

ERIC Educational Resources Information Center

Fisher, Bobbi

Applying the conditions of natural learning to create caring kindergarten classroom environments may support students as lifelong learners. This book presents a natural learning classroom model for implementing a whole-language approach in kindergarten. The chapters are as follows: (1) "My Beliefs about How Children Learn"; (2) "Applying Whole…

The Joy of Contracts.

ERIC Educational Resources Information Center

Hegarty, Kevin

This paper is a practical guide that explains and illustrates contracts between libraries and vendors for computerized circulation systems. It describes the elements of a typical contract to include the equipment and services that should be specified in the contract and establishes scheduling and acceptance testing needs. Included in a contract…

Children's Literature: An Issues Approach. Third Edition.

ERIC Educational Resources Information Center

Rudman, Masha Kabakow

Introducing children from kindergarten through junior high school to the joy and benefits of reading, this book examines children's literature and its treatment of important, sometimes controversial issues. Focusing on the personal and societal concerns of today's youth--including sexuality, divorce, heritage, abuse, and death--the book offers…

Stirring the Ashes of Public Discourse.

ERIC Educational Resources Information Center

Marinara, Martha

Sylvia Plath's confessional poem, "Lady Lazarus" can be used to illustrate a connection between autobiography and social critique. "You poke and stir" among the institutions that form social relations--the educational system, the court system, the economic system--to find individuals whose lives, whose joys and pains, and…

GENERAL EXTERIOR VIEW, LOOKING NORTHEAST, OF THE SURFACE PLANT WITH ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

GENERAL EXTERIOR VIEW, LOOKING NORTHEAST, OF THE SURFACE PLANT WITH CONVEYORS. JIM WALTER RESOURCES INC. MINING DIVISION OPERATES FOUR UNDERGROUND COAL MINES IN THE BLUE CREEK COAL FIELD OF BIRMINGHAM DISTRICT, THREE IN TUSCALOOSA COUNTY AND ONE IN JEFFERSON COUNTY. TOTAL ANNUAL PRODUCTION IS 8,000,000 TONS. AT 2,300 DEEP, JIM WALTER'S BROOKWOOD MINES ARE THE DEEPEST UNDERGROUND COAL MINES IN NORTH AMERICA. THEY PRODUCE A HIGH-GRADE MEDIUM VOLATILE LOW SULPHUR METALLURGICAL COAL. THE BROOKWOOD NO. 5 MINE (PICTURED IN THIS PHOTOGRAPH) EMPLOYS THE LONGWALL MINING TECHNIQUES WITH BELTS CONVEYING COAL FROM UNDERGROUND OPERATIONS TO THE SURFACE. - JIm Walter Resources, Incorporated, Brookwood No. 5 Mine, 12972 Lock 17 Road, Brookwood, Tuscaloosa County, AL

Tips for longwall conveyor chain

DOE Office of Scientific and Technical Information (OSTI.GOV)

Courtney, J.C.; Fortune, J.

1977-03-01

Mining chain must be capable of sustaining imposed loads of 80 or 90 percent of its minimum breaking strength, and still return to its original dimensions. This means that the chain should behave like an extremely sophisticated spring up to very high load levels, and return to its unloaded state without any plastic stretch or permanent dimensional deformation having taken place. This feature is absolutely essential, not only to enable repeat loadings to be made, but to ensure that constant, precise engagement of the drive and idler sprockets takes place. The mining chain production process, therefore, is carefully designed somore » that the last stage of manufacture introduces these necessary features.« less

Learning Languages: The Journal of the National Network for Early Language Learning, 2001-2002.

ERIC Educational Resources Information Center

Rosenbusch, Marcia H., Ed.

2002-01-01

These three journal issues contain the following articles: "Japanese at Mimosa Elementary School" (Azusa Uchihara); "A Successful Keypal Project Using Varied Technologies" (Jean L. Pacheco); "Promoting a Language-Proficient Society: What You Can Do" (Kathleen M. Marcos and Joy Kreeft Peyton); "Journal Reflections…

Teaching Rhetorica: Theory, Pedagogy, Practice

ERIC Educational Resources Information Center

Ronald, Kate, Ed.; Ritchie, Joy, Ed.

2006-01-01

In their breakthrough anthology of women's rhetoric, "Available Means," Kate Ronald and Joy Ritchie presented the first comprehensive collection of women's rhetorical theory and practice from the third century B.C. to 2001. With that expansive gathering of women's rhetoric, they raised questions about gender, difference, and the rhetorical canon,…

Joy in Mudville. A Little League[R] Memoir.

ERIC Educational Resources Information Center

Mitchell, Greg

This book chronicles the author's experiences managing his son's wildly unpredictable Little League baseball team, exploring the pleasures and pitfalls of adult involvement in Little League, a game played by, and meant for, children. The book examines timely issues surrounding youth baseball today. Through interviews with parents, opposing…

7. Photographic copy of floor plan drawing, dated August 10, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Photographic copy of floor plan drawing, dated August 10, 1968, Department of the Air Force Air Defense Command Installations, in possession of Selfridge Base Museum, Mt. Clemens, Michigan. - Selfridge Field, Building No. 592, South of East Joy Boulevard, west of Taxiway C, Mount Clemens, Macomb County, MI

6. Photographic copy of floor plan, dated August 10, 1968, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

6. Photographic copy of floor plan, dated August 10, 1968, Department of the Air Force Air Defense Command Installation, in possession of Selfridge Base Museum, Mt. Clemens, Michigan. - Selfridge Field, Building No. 1576, South of East Joy Boulevard, west of Taxiway C, Mount Clemens, Macomb County, MI

Photographic copy of floor plan drawing, dated August 10, 1968, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Photographic copy of floor plan drawing, dated August 10, 1968, Department of the Air Force Air Defense Command Installations, in possession of Selfridge Base Museum, Mt. Clemens, Michigan - Selfridge Field, Building No. 1580, South of East Joy Boulevard, west of Taxiway C, Mount Clemens, Macomb County, MI

Education and Ecstasy.

ERIC Educational Resources Information Center

Leonard, George B.

The highly interactive, regenerative, technological society now emerging will require something akin to mass genius, mass creativity, and lifelong learning; and schools as they now exist are already obsolete. Education of the future will be, and could be now, a utopian, voluntary, joyful, lifetime experience for its own sake. Our present level of…

The Toddler Years: A Time of Exuberance and Joy

ERIC Educational Resources Information Center

Korngold, Carole Wolfe; Korngold, K. T.

2014-01-01

In this article the authors describe how Montessori teachers create environments that assist and support toddlers. For all Montessori children, especially toddlers, giving them opportunities to perceive and experience the world through their own unaided efforts is the central premise of their prepared environments. The caretakers prepare the…

STEM | News

Science.gov Websites

the field. STEM Career Expo at Fermilab From NCTV17, April 20, 2018: The next generation of scientists Career Expo. Watch the 90-second segment. In photos: Dare to Dream shares joys of STEM with Latina middle Lab professionals discussed their work, shared their experiences in different career areas and

Inquiry on Teachers' Emotion

ERIC Educational Resources Information Center

Schutz, Paul A.

2014-01-01

Teaching, like other caring professions, is emotional. These emotions tend to emerge as teachers' goals, standards, and beliefs transact with other classroom stakeholders during everyday school activities. As such, for teachers, the classroom context involves both the extreme happiness and joy from a lesson that goes as planned to the intense…

Finding the Joy of Language in Authentic Wordplay

ERIC Educational Resources Information Center

Whitaker, Sandra

2008-01-01

Within the walls of their classroom, high school teacher Sandra Whitaker and students take on the challenge of language acquisition. They play with morphemes and etymologies and examine how authors craft meaning. Whitaker observes that it is possible for students to "learn more words than teachers can teach directly."

Sex- and Gender-Differences in Emotion: A Preliminary Examination.

ERIC Educational Resources Information Center

Emmers, Tara M.

This paper offers a preliminary examination of literature reviewing sex and gender differences in the five prototypic emotions of fear, anger, sadness, joy, and love. The paper notes that within the literature on sex and gender differences, the terms "sex" and "gender" are often erroneously referred to interchangeably…

When Safety and Joy Are Breached.

ERIC Educational Resources Information Center

Silin, Jonathan G.

Increasingly, narrative has been accepted as an essential mode of knowing and thinking. However, contemporary educators are unlikely to acknowledge that narrative is as essential to social and political action as it is to personal catharsis and self-understanding. In many schools, narrative writing has become an end in itself rather than the…

Fishful Thinking: Cultivating Gratitude in Youth

ERIC Educational Resources Information Center

Reivich, Karen

2009-01-01

The field of positive psychology has been interested in gratitude and documenting its benefits on well-being. Research has shown that people who experience gratitude have a variety of positive outcomes including more positive emotions such as joy, love, and happiness; fewer negative emotions such as bitterness, envy, and resentment; increased…

Imagine...Opportunities and Resources for Academically Talented Youth, 1999-2000.

ERIC Educational Resources Information Center

Hartman, Melissa E., Ed.

2000-01-01

Designed to encourage gifted students to develop their talents, the first issue in the volume focuses on academic competitions and includes articles on: "The Joys of Competition"; "Why Bother with Math Contests?" (Sam Vandervelde); "Science Competitions"; Humanities Competitions"; "Designing in Metal" (Cody Chance); and "Discovering My Chinese…

Research and Reflections on the Spiritual Development of Young Jewish Children

ERIC Educational Resources Information Center

Schein, Deborah L.

2013-01-01

This article is about spiritual development for early childhood Jewish education. Findings from a research study defines the spiritual development of young children as an integration of deep connections, basic dispositions (strengthened from experiences of wonderment, awe, joy, inner peace), and complex dispositions (displayed through acts of…

Hannah Arendt

ERIC Educational Resources Information Center

Stern, Peter; Yarbrough, Jean

1978-01-01

Hannah Arendt's gaity, wit, and passion, her testy impatience, her love of debate, her shrewd common sense, her joy in communicating her knowledge, and her brilliance and learning are the qualities that made her such a remarkable and inspiring teacher. Here is an evaluation of her teaching performance by two former students. (Author/RK)

Improvisational Teaching as Mode of Knowing

ERIC Educational Resources Information Center

Shem-Tov, Naphtaly

2011-01-01

Theatrical improvisation is a joyful, creative, and playful activity of discovery and a spontaneous process. It seems to be the opposite of teaching, which requires proper planning and advance thinking and seems a very "serious business" that deals with values and knowledge. Improvisation is shaped by flexibility and by transformative…

Preschoolers and Parents as Artists and Art Appreciators.

ERIC Educational Resources Information Center

Piscitelli, Barbara

1988-01-01

Discusses the Australian "Share the Joy" project which promotes art appreciation experiences for young children and adults in a gallery setting. Describes and reflects on the reactions of children to original art works in museums and examines the responses of children and parents to a prepared studio environment. (GEA)

Intermediality and the Child Performer

ERIC Educational Resources Information Center

Budd, Natasha

2016-01-01

This report details examples of praxis in the creation and presentation of "Joy Fear and Poetry": an intermedial theatre performance in which children aged 7-12 years generated aesthetic gestures using a range of new media forms. The impetus for the work's development was a desire to make an intervention into habituated patterns of…

The Exceptional Poet.

ERIC Educational Resources Information Center

Barton, Julianne M.

As part of the adult education program of Mountain View-Los Altos (California) High School District, elderly patients at skilled nursing care facilities take classes in poetry. The poetry classes are therapeutic in nature, satisfying a real need for these very ill elderly people to express their frustrations, hopes, fears, and joys. All of the…

What Are the Core Elements of Your Curriculum?

ERIC Educational Resources Information Center

Exchange: The Early Childhood Leaders' Magazine Since 1978, 2009

2009-01-01

Several administrators discuss the core elements of their curriculum. These core elements are: (1) Child-centered; (2) Play; (3) Problem solving; (4) Respect; (5)Creativity; (6) Community; (7) Independence; (8) Curiosity; (9) Love of learning; (10) Relationship; (11) Cooperation; (12) Self-confidence; (13) Language; (14) Joy; (15) Nature; Natural…

78 FR 61947 - H2O Holdings, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-07

...: Ms. Joy Focht, H2O Holdings, LLC, 1485 Garden of the Gods Rd., Ste. 160, Colorado Springs, CO 80907; telephone: (719) 473-7763 (ext. 202) and Mr. Sam Houston, H2O Holdings, LLC, 1485 Garden of the Gods Rd...

Managing Archival Collections in an Automated Environment: The Joys of Barcoding

ERIC Educational Resources Information Center

Hamburger, Susan; Charles, Jane Veronica

2006-01-01

In a desire for automated collection control, archival repositories are adopting barcoding from their library and records center colleagues. This article discusses the planning, design, and implementation phases of barcoding. The authors focus on reasons for barcoding, security benefits, in-room circulation tracking, potential for gathering…

Human Performance in Time-Shared Verbal and Tracking Tasks.

DTIC Science & Technology

1979-04-01

represented tracking performance. A graph of RMSE as a funtion of the experimental conditions is presented in Figur3 4. The ANOVA summary for these...alterations in the stimulus format or keyboard/joy- stick relationships would probably have either no effect, or would be detrimental to performance of

Outdoor Education: Opening and Closing Activities.

ERIC Educational Resources Information Center

Mingie, Walter, Comp.

Opening activites (to create an atmosphere of cooperation and a desire to work, explore, and learn together) and closing activities (to summarize what has happened or been learned) for outdoor education programs are described. All activities are intended to incite enthusiasm to learn and make the learning activity a desired, joyful experience.…

Turtle Girls

ERIC Educational Resources Information Center

Nelson, Charles; Ponder, Jennifer

2010-01-01

The day the Turtle Girls received Montel's adoption papers, piercing screams ricocheted across the school grounds instantaneously and simultaneously--in that moment, each student felt the joy of civic stewardship. Read on to find out how a visit to The Turtle Hospital inspired a group of elementary students to create a club devoted to supporting…

Brain Stretchers, Book 3 - Advanced.

ERIC Educational Resources Information Center

Stickels, Terry H.

Current thinking suggests that solving brainteasing puzzles uses the same critical thinking skills needed to solve difficult math, science, and business problems. This book is a non-intimidating exploration of the wonderful powers of the mind with an emphasis on the joy of thinking and learning. It contains 100 puzzles, presented in order of…

Cockroaches in the Classroom

ERIC Educational Resources Information Center

Wagler, Ron; Moseley, Christine

2005-01-01

The Madagascar hissing cockroach (MHC) provides an excellent avenue to introduce students to the joys of inquiry-centered learning. MHC's are relatively tame, produce little odor, do not bite, and are easy to handle and breed. Because of these characteristics, they are ideal for classroom activities, science projects, and as pets. They also help…

[Superbrown beauty : The surface of tanorexia and tanning dependence].

PubMed

Harth, W

2017-12-01

Brown skin symbolizes fitness, health, youthfulness and beauty, combined with leisure, activity, and joy of life in the Central European culture. Tanorexia is a tanning dependence that describes the morbid excessive desire for constant skin tanning. Particularly young women are affected. This article shows the underlying psychodermatological disorders.

Improving Lives through Evidence-Based Practice

ERIC Educational Resources Information Center

Young Exceptional Children, 2008

2008-01-01

Tess is a joyful eight-year old girl with epilepsy, frontal lobe dysfunction, and dyspraxia, as well as delays in language, fine motor, and gross motor skills. However, despite her disabilities, Tess happily embraces life. With assistance from a few support professionals, Tess currently functions successfully in a regular education second grade…

Joyful Food. Spotlight: Physical Development.

ERIC Educational Resources Information Center

Stratton, Mary

2000-01-01

Presents suggestions for integrating food experiences as a positive, sustaining part of the family lifestyle. Focuses on social graces and rituals related to special family meals and gatherings, on using tea parties to integrate family rituals and etiquette, and on family gardening. Describes ways children can participate in food acquisition and…

We Can Cook! Snack Preparation with Toddlers and Twos.

ERIC Educational Resources Information Center

Taylor, Satomi Izumi; Dodd, Arleen T.

1999-01-01

Cooking provides a wealth of multisensory experiences for toddlers and 2-year olds. Carefully planned and developmentally appropriate cooking projects can provide young children the opportunity of experiencing the rewards of cooking such as a sense of accomplishment, joy, and excitement and can boost self-esteem. (Author)

A Teacher's Journey to Mindfulness: Opportunities for Joy, Hope, and Compassion

ERIC Educational Resources Information Center

Harris, Kathleen I.

2017-01-01

Many mindfulness techniques and goals have natural connections for teachers, especially teachers of young children. Helping students expand their awareness beyond themselves, focus their attention, visualize, and be kind to one another are key aspects of a teacher's responsibilities. Mindfulness supports teachers as they focus on positive emotions…

Who's Afraid of Old Mother Hubbard?

ERIC Educational Resources Information Center

Ohanian, Susan

1990-01-01

Refutes the sequential, building-block theory of cultural literacy which advocates mastery of a prescribed body of cultural knowledge. Argues that teachers must help students find joyful encounters with words which will knock their socks off and inspire them both to search for understanding and to reach for another book. (SR)

Stories from Hopescapes

ERIC Educational Resources Information Center

Harris, Violet J.

2011-01-01

Author Virginia Hamilton had the gift of creating lyrical phrases that captured the complexities of life. Among her most notable phrase is the idea of the "hopescape," the metaphoric description of the pains and joys, triumphs and defeats, longing, and dreams that make us human. The publication of an edited volume that compiles a sampling of…

An Ecological Study of Glee in Small Groups of Preschool Children

ERIC Educational Resources Information Center

Sherman, Lawrence W.

1975-01-01

Presents a description and analysis of group glee (joyful screaming, laughing and intense physical acts occurring in simultaneous bursts or in a contagious fashion), studied by means of videotapes of 596 formal lessons in a preschool. Information collected concerned occurrence, location, frequency and duration, teachers' responses, incidence of…

Enacting the Spiritual Dimension in Physical Education

ERIC Educational Resources Information Center

Lodewyk, Ken; Lu, Chunlei; Kentel, Jeanne

2009-01-01

Spirituality is a fundamental, everyday life process involving a joy of living, sacrifice and love for others, and a connection to self, others, nature, and to a larger meaning or purpose. Distinct from moral or religious beliefs, spirituality engages interactively with the psyche, body, and sociocultural setting to influence human functioning,…

A Parent's Guide to Gifted Children

ERIC Educational Resources Information Center

Webb, James T.; Gore, Janet L.; Amend, Edward R.; DeVries, Arlene R.

2007-01-01

Raising a gifted child is both a joy and a challenge, yet parents of gifted children have few resources for reliable parenting information. The four authors, who have decades of professional experience with gifted children and their families, provide practical guidance in areas such as: Characteristics of gifted children; Peer relations; Sibling…

Dangerous Gulf? The Relationship between America and its All-Volunteer Military

DTIC Science & Technology

2013-03-01

altering transformations like finding or converting to a new religion, or even turning Vegan . The pronounced changes brought on by a dramatic change...846961/celebrating- motherhood-how-becoming-a-mom-changes-you (accessed January 14, 2008); Colleen Patrick- Goudreau, “The Joyful Vegan : Stories of

Wisdom-Centred Educational Leadership

ERIC Educational Resources Information Center

Ylimaki, Rose Marie; McClain, Leslie J.

2009-01-01

US administrators must meet the demands of accountability while maintaining a balance and the joy of learning in their schools. Accountability comes with the US laws No Child Left Behind (2002) and Title II Reauthorization (2002). Increased accountability has had a major impact in several other countries as well. This paper is largely conceptual…

Interactive Groups: Examining and Interrogating Issues of Heterogeneity and Accountability

ERIC Educational Resources Information Center

Frost, Gail; Connolly, Maureen

2009-01-01

Teachers and learners alike bring past experiences into present teaching and learning contexts. Group work is an experience that carries equal measures of joyful anticipation and mournful trepidation. Learners typically experience group work as an uneven distribution of time, competence, and accountability, and seem to have lingering memories of…

The Science of Exploring Caves.

ERIC Educational Resources Information Center

Reid, Frank S.

1991-01-01

An introduction to the science of speleology is presented. Discussed is why people explore caves--for the physical challenge, the thrill of discovery, and the joy of viewing their beauty. Cave conservation, cave biology, caving safety, and caving equipment are topics of discussion. A reading list on caves is included. (KR)

Straw Rockets Are out of This World

ERIC Educational Resources Information Center

Gillman, Joan

2013-01-01

To capture students' excitement and engage their interest in rocketships and visiting planets in the solar system, the author designed lessons that give students the opportunity to experience the joys and challenges of developing straw rockets, and then observing which design can travel the longest distance. The lessons are appropriate for…

Adult Literacy and Numeracy: Assessing Change. Adult Literacy Research Network.

ERIC Educational Resources Information Center

Cumming, J. Joy, Ed.; van Kraayenoord, Christina E., Ed.

This document contains eight papers from an action research program to foster good practice in adult literacy provision and policy. "Introduction" (J. Joy Cumming, Christina E. van Kraayenoord) presents an overview of the action research project and individual reports. "Assessment: Making a Difference in Adult Literacy and Numeracy…

The Creative Process.

ERIC Educational Resources Information Center

Harjo, Joy; And Others

1985-01-01

Four Native American poets in easy narrative style tell about some of the aesthetic judgments they make in their work and, in the process, shed some light upon the traditions from which their poetry emerges. Joy Harjo discusses how she wrote "The Woman Hanging from the Thirteenth Floor Window," her use of repetition influenced by music…

Nonverbal Effects in Memory for Dialogue.

ERIC Educational Resources Information Center

Narvaez, Alice; Hertel, Paula T.

Memory for everyday conversational speech may be influenced by the nonverbally communicated emotion of the speaker. In order to investigate this premise, three videotaped scenes with bipolar emotional perspectives (joy/fear about going away to college, fear/anger about having been robbed, and disgust/interest regarding a friend's infidelity) were…

Thinking about Women's History, Part Two.

ERIC Educational Resources Information Center

Pope, Barbara Corrado

1993-01-01

Reviews eight European histories by Dorothy O. Helly, Ed., and Susan M. Reverby, Ed. (1992); Joy Wiltenburg (1992); Margaret L. King (1991); Joan DeJean (1991); Jacques Gelis (1991); Barbara Duden (1991); Jane Lewis (1991); and Sheila Rowbotham (1989). This sampling shows women's historians use an interdisciplinary approach and consistently deal…

The Joy of No Sex

ERIC Educational Resources Information Center

Wasley, Paula

2007-01-01

This article reports on Justin F. Murray and Sarah M. Kinsella, the founders of a Harvard University student group called True Love Revolution that promotes the practical benefits of sexual abstinence until marriage and how Murray and Kinsella look forward to living the message after graduation. These "true love" revolutionaries cast…

MovementScapes as Ecomotricity in Ecopedagogy

ERIC Educational Resources Information Center

Rodrigues, Cae

2018-01-01

This elaboration of an ecopedagogy in movementscapes aims to present an empirically informed account of the concept of "ecomotricity" as manifested in the living body interacting in/with nature (human-and-other-than-human). This interaction is ludic (where pleasure or joy/happiness gives meaning to the lived experience) and ecological…

Treasures from the Past: Using Archaeology in Upper-Elementary Social Studies.

ERIC Educational Resources Information Center

Gardner, Cynthia C.

1997-01-01

Describes a fourth grade teacher's interdisciplinary efforts at imparting the joys of archaeology to her students. The students read fiction and non-fiction materials about the physical environments and participated in a series of hands-on learning activities. These involved simulated archaeological digs, personal artifacts, and realia. (MJP)

A Teaching Makeover Improves Learning for Diverse Learners

ERIC Educational Resources Information Center

Doubet, Kristina J.; Hockett, Jessica A.; Brighton, Catherine M.

2016-01-01

In many primary classrooms, the prospect of addressing standards threatens to rob young children of the joy of learning. Teachers who feel pressed to move students of all backgrounds toward mastery of increasingly complex standards may abandon rich curriculum and move toward isolated "skill drills." This may be counterproductive. The…

The Option of Rationality in the Source of Joy of Life.

ERIC Educational Resources Information Center

Bondergaard, Jette

1998-01-01

Examines challenges arising from a growing consciousness of environmental problems and their implications for education in general and for early childhood education specifically. Argues that cultures should consider both human rights and environmental protection, that they need to develop solidarity and create peaceful ways of living. Maintains…

7. Photographic copy of floor plan drawing, dated September 26, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Photographic copy of floor plan drawing, dated September 26, 1975, Selfridge ANG Base, in possession of Selfridge Base Museum, Mt. Clemens, Michigan. FLOOR PLAN BLDG. 1583. - Selfridge Field, Building Nos. 1582, 1583, 1584, South of East Joy Boulevard, west of Taxiway C, Mount Clemens, Macomb County, MI

6. Photographic copy of floor plan drawing, dated August 10, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

6. Photographic copy of floor plan drawing, dated August 10, 1968, Selfridge ANG Base, in possession of Selfridge Base Museum, Mt. Clemens, Michigan. FLOOR PLANS BLDGS. 1582 & 1584. - Selfridge Field, Building Nos. 1582, 1583, 1584, South of East Joy Boulevard, west of Taxiway C, Mount Clemens, Macomb County, MI

Comparison of Methane Control Methods in Polish and Vietnamese Coal Mines

NASA Astrophysics Data System (ADS)

Borowski, Marek; Kuczera, Zbigniew

2018-03-01

Methane hazard often occurs in hard coal mines and causes very serious accidents and can be the reason of methane or methane and coal dust explosions. History of coal mining shows that methane released from the rock mass to the longwall area was responsible for numerous mining disasters. The main source of methane are coal deposits because it is autochthonous gas and is closely related with carbonification and forming of coal deposits. Degree of methane saturation in coal deposits depends on numerous factors; mainly on presence or lack of insulating layers in cover deposit that allow or do not on degasification and easily methane outflow into surroundings. Hence in coal mining there are coal deposits that contain only low degree of methane saturation in places where is lack of insulating layers till high in methane coal deposits occurring in insulating claystones or in shales. Conducting mining works in coal deposits of high methane hazard without using of special measures to combat (ventilation, methane drainage) could be impossible. Control of methane hazard depends also on other co-occuring natural dangers for which used preventive actions eliminate methane hazard. Safety in mines excavating coal deposits saturated with methane depends on the correct estimation of methane hazard, drawn up forecasts, conducted observations, hazard control as well as undertaken prevention measures. Methane risk prevention includes identification and control methods of methane hazards as well as means of combating the explosive accumulation of methane in longwall workings. The main preventive actions in underground coal mines are: effective ventilation that prevents forming of methane fuses or placed methane accumulation in headings ventilated by airflow created by main fans and in headings with auxiliary ventilation, methane drainage using drain holes that are drilled from underground headings or from the surface, methanometry control of methane concentration in the air; location of the sensors is defined by law, additional ventilation equipment used in places of lower intensity of ventilation and places where methane is concentrated.

Assessment of pore pressures and specific storage within sedimentary strata overlying underground mines

NASA Astrophysics Data System (ADS)

Timms, W.; David, K.; Barbour, L. S.

2016-12-01

Realistic values of specific storage (Ss) for groundwater systems are important to determine the spatial extent and timing of c pore pressure changes when the groundwater system is stressed. However, numerical groundwater models of underground excavations typically assume constant literature values of Ss. One part of our research program utilised high frequency pore pressure data to evaluate variability and changes in Ss within sedimentary strata overlying a longwall coal mine. Pore pressure data from a vertical series of 6 vibrating wire piezometers (50 to 278 m depth) recording at hourly intervals were compared with barometric pressure data over a period of several years, including data before and during mining. The site was located near the centre of a longwall panel that extracted 3 m of coal at a depth of 330 m. The data was processed to calculate loading efficiency and Ss values by multi-method analyses of barometric and earth tide responses. In situ Ss results varied over one to two orders of magnitude and indicated that Ss changed before and after excavation of underlying coal seams. The vertical leakage of groundwater within the constrained zone ( 10 to 150 m depth) was found to be limited, although some degree of vertical hydraulic connectivity was observed. Depressurization was evident in the fractured zone directly overlying the coal seam, and Ss changes at 250 m depth indicated this confined aquifer may have become unconfined. Our results demonstrate that high frequency pore pressure data can provide realistic Ss values. In situ Ss values were an order of magnitude lower than Ss measured by geomechnical tests of cores, and were significantly different to textbook values set in most local groundwater models. The timing and extent of groundwater level drawdown predicted by models may therefore be underestimated. We have shown, for the first time, that variability of Ss can be significant, and that these changes can provide important insights into how shallow and deep groundwater systems respond to underground mining.

Roof Weakening of Hydraulic Fracturing for Control of Hanging Roof in the Face End of High Gassy Coal Longwall Mining: A Case Study

NASA Astrophysics Data System (ADS)

Huang, Bingxiang; Wang, Youzhuang

2016-09-01

The occurence of hanging roof commonly arises in the face end of longwall coal mining under hard roof conditions. The sudden break and subsequent caving of a hanging roof could result in the extrusion of gas in the gob to the face, causing gas concentrations to rise sharply and to increase to over a safety-limited value. A series of linear fracturing-holes of 32 mm diameter were drilled into the roof of the entries with an anchor rig. According to the theory that the gob should be fully filled with the fragmentized falling roof rock, the drilling depth is determined as being 3 5 times the mining height if the broken expansion coefficient takes an empirical value. Considering the general extension range of cracks and the supporting form of the entryway, the spacing distance between two drilling holes is determined as being 1 2 times the crack's range of extension. Using a mounting pipe, a high pressure resistant sealing device of a small diameter-size was sent to the designated location for the high-pressure hydraulic fracturing of the roof rock. The hydraulic fracturing created the main hydro-fracturing crack and airfoil branch cracks in the interior of the roof-rock, transforming the roof structure and weakening the strength of the roof to form a weak plane which accelerated roof caving, and eventually induced the full caving in of the roof in time with the help of ground pressure. For holes deeper than 4 m, retreating hydraulic fracturing could ensure the uniformity of crack extension. Tested and applied at several mines in Shengdong Mining District, the highest ruptured water pressure was found to be 55 MPa, and the hanging roof at the face end was reduced in length from 12 m to less than 1 2 m. This technology has eliminated the risk of the extrusion of gas which has accumulated in the gob.

Modelling of Longwall Mining-Induced Strata Permeability Change

NASA Astrophysics Data System (ADS)

Adhikary, D. P.; Guo, H.

2015-01-01

The field measurement of permeability within the strata affected by mining is a challenging and expensive task, thus such tests may not be carried out in large numbers to cover all the overburden strata and coal seams being affected by mining. However, numerical modelling in conjunction with a limited number of targeted field measurements can be used efficiently in assessing the impact of mining on a regional scale. This paper presents the results of underground packer testing undertaken at a mine site in New South Wales in Australia and numerical simulations conducted to assess the mining-induced strata permeability change. The underground packer test results indicated that the drivage of main headings (roadways) had induced a significant change in permeability into the solid coal barrier. Permeability increased by more than 50 times at a distance of 11.2-11.5 m from the roadway rib into the solid coal barrier. The tests conducted in the roof strata above the longwall goaf indicated more than 1,000-fold increase in permeability. The measured permeability values varied widely and strangely on a number of occasions; for example the test conducted from the main headings at the 8.2-8.5 m test section in the solid coal barrier showed a decline in permeability value as compared to that at the 11.2-11.5 m section contrary to the expectations. It is envisaged that a number of factors during the tests might have had affected the measured values of permeability: (a) swelling and smearing of the borehole, possibly lowering the permeability values; (b) packer bypass by larger fractures; (c) test section lying in small but intact (without fractures) rock segment, possibly resulting in lower permeability values; and (d) test section lying right at the extensive fractures, possibly measuring higher permeability values. Once the anomalous measurement data were discarded, the numerical model results could be seen to match the remaining field permeability measurement data reasonably well.

Performance evaluation of a cable bolted yield-abutment gate road system at the Crandall Canyon No. 1 Mine, Genwal Resources, Inc., Huntington, Utah

DOE Office of Scientific and Technical Information (OSTI.GOV)

Koehler, J.R.; DeMarco, M.J.; Marshall, R.J.

1996-12-01

Although two-entry yield pillar-based gate roads supported by wooden cribs have been commonly used throughout longwalling in the Wasatch Plateau/Roan Cliffs coalfield of central Utah, a three-entry yield-abutment gate road configuration was recently trialed in the Hiawatha Seam at the Genwal Resources (GRI) Crandall Canyon No. 1 Mine, near Huntington, UT. Pillar, entry, and cable bolt performance were monitored through second panel mining using a fairly extensive array of geomechanical instruments installed over a span of four crosscuts. Ground pressure and entry closure measurements confirmed that the 9.1-m-wide (30-ft) yield pillar was partially shielded from first panel longwall loads bymore » the 36.6-m-wide (120-ft) abutment pillar, and consequently, experienced only minor yielding until the approach of the second panel face. Complete yielding of the 9.1-m-wide (30-ft) pillar occurred when the second panel was approximately 6.1 m (20 ft) in by the instrumentation site. Average cable bolt loads and differential roof sag remained low through second panel mining and tailgate entry ground conditions were excellent; however, very high ground pressures in the abutment and yield pillars, and second panel rib strongly suggest a high potential for coal bumps utilizing this gate road configuration at mining cover depths in excess of 396 to 457 m (1300 to 1500 ft). This conclusion is supported by the suspected occurrence of small coal bumps along the abutment pillar ribs, observed indirectly as fresh debris in the middle entry just behind the second face. This paper presents a case history developed from the geotechnical measurements and on-site observations of this unique application of a yield-abutment gate road configuration and cable support system in the Hiawatha Seam.« less

6. Photographic copy of floor plan drawing, dated August 18, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

6. Photographic copy of floor plan drawing, dated August 18, 1968, Department of the Air Force Air Defense Command Installations, in possession of Selfridge Base Museum, Mt. Clemens, Michigan. FLOOR PLAN BLDG. 1585. - Selfridge Field, Building No. 1585, South of East Joy Boulevard, west of Taxiway C, Mount Clemens, Macomb County, MI

Photographic copy of floor plan drawing, dated March 7, 1968, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Photographic copy of floor plan drawing, dated March 7, 1968, Department of the Air Force Air Defense Command Installations, in possession of Selfridge Base Museum, Mt. Clemens, Michigan. FLOOR PLAN BLDG. 1575 - Selfridge Field, Building No. 1575, South of East Joy Boulevard, west of Taxiway C, Mount Clemens, Macomb County, MI

Adult Learning in the Workplace: Emotion Work or Emotion Learning?

ERIC Educational Resources Information Center

Bierema, Laura L.

2008-01-01

Organizational life evokes joy, hate, anger, despair, curiosity, and esteem, yet as far as management is concerned, emotions are disruptive, dysfunctional, and derailing. In spite of managerial reluctance to embrace the emotional self as a relevant aspect of the worker, emotion makes everyone human, and organizations weigh on workers' emotional…

Children with Down Syndrome: Discovering the Joy of Movement

ERIC Educational Resources Information Center

Jobling, Anne; Virji-Babul, Nazin; Nichols, Doug

2006-01-01

Learning to move and moving to learn are vital aspects of every child's growth and development. Physical therapists and educators have consistently advocated the importance of being involved in a range of movement activities and games. Movement can provide an avenue for learning and interaction with others and can be linked to language and…

Joy in Learning: Making It Happen in Early Childhood Classes. NEA Early Childhood Education Series.

ERIC Educational Resources Information Center

Burton, Leon H.

A premise of this book for teachers of young children is that all learning should be challenging, interesting, and enjoyable. Chapters include: (1) A Philosophy for Early Education (concerning the nature of young children, learning contexts, societal expectations); (2) Child Development (concerning independence, self-esteem, cooperative…

Building trust-business essentials

Treesearch

Sandy MacIver

2008-01-01

(Please note: This paper only contains the abstract.) Trust is particularly vital in the leadership of organizations. Trust is built by working through "joy, fear, and vulnerability," especially as it relates to trust in others and in teams. Key is learning to trust the right people in the right way in the right circumstances. In addition...

How To Stop Writing: In Search of Heterotopia.

ERIC Educational Resources Information Center

Murray, Joel K.

A priori criteria are pressing playwrights to be conservative, to unify their total experience so that everything is regimented and predictable, consciously or subconsciously. The danger, joy, and mystery of life is under the aesthetic gun. Do playwrights, and theater practitioners in general, repress and thus betray their inner voices, or do they…

Using Art to Teach Children about Themselves and the World

ERIC Educational Resources Information Center

Belz, Paul

2011-01-01

Teachers know about the joyful discoveries children make when they create animal masks, draw with a handful of crayons, use spices mixed with glue to paint a self-portrait, or compare their colorful fingerprints. Art activities fit beautifully with early childhood education's emphasis on social, emotional, cognitive, and physical learning…

Mentoring Women in the Frederick Community | Poster

Cancer.gov

Joy Beveridge, clinical project manager III, is all about building relationships. Her work as a clinical project manager requires her to manage teams such as the Coordinating Center for Clinical Trials, Center for Global Health, Brain Tumor Trials Collaborative, and Division of Cancer Treatment and Diagnosis. Equally important are the relationships Beveridge builds through her

You Know Your Child Is Gifted When...A Beginner's Guide to Life on the Bright Side.

ERIC Educational Resources Information Center

Galbraith, Judy

This book uses humorous cartoons and commentary on giftedness to provide parents with information on the characteristics, challenges, and joys of parenting a gifted child. Characteristics of gifted children that are highlighted include advanced intellectual ability, verbal proficiency, curiosity, creativity, high energy, focus, passion, and…

Marine Tanks: The Hard Punch of America’s Middle-Weight Fighting Force

DTIC Science & Technology

2011-04-25

amplified by the hundreds of joyful and exuberant cheering Somali citizens. As the lifeless .figures of these American patriots were dishonored and...denounce this point as an irrational thought. If it is in fact an irrational thought, it would be a good investigative effort to identify why so many

Person-Centered Therapy: A Philosophy to Support Early Childhood Education

ERIC Educational Resources Information Center

Boyer, Wanda

2016-01-01

Person-centered therapy (PCT) comes from the experiential and relationship-oriented therapy tradition. It is considered to be a third force in therapeutic engagement, along with the psychoanalytic and behavioral approaches. PCT is based on faith in and empowerment of human beings to be joyful, creative, self-fulfilled and willing and able to…

Discovering, Supporting, and Promoting Young Children's Passions and Interests: One Teacher's Reflections.

ERIC Educational Resources Information Center

Ferguson, Christine

2001-01-01

Describes the journey of one kindergarten teacher as she discovered, supported, and promoted the passions and interests of an at-risk kindergarten student, and shared in his joys of learning. Details an inquiry project about snakes, initiated by the student's knowledge about snakes, involving field trips, class discussion, learning centers, and…

How Can Music Seem to Be Emotional?

ERIC Educational Resources Information Center

Price, Kingsley

2004-01-01

Within music heard, there are two distinguishable factors. The first is the relation of the music to its seeming emotionality-the relation, for example, of the wedding march to its joyfulness. The second is that seeming emotionality itself-the sorrowfulness, for example, of the second movement of the Chopin Sonata. The author looks for an answer…

The Aims of College Teaching.

ERIC Educational Resources Information Center

Eble, Kenneth E.

The aims of college teaching are discussed, and a comparison of higher education in 1960 and two decades later is provided. After considering the development of a teaching style and the importance of the teacher's character, the joyful and spontaneous side of teaching are considered. The nature of teaching (i.e., art, science, or craft) is also…

Educating through the Physical--Procedures and Implementation

ERIC Educational Resources Information Center

Eldar, Eitan

2006-01-01

The unique features of physical activity and play highlight it as a constructive context for attaining behavioral goals such as self-control and social skills. Strenuous activity, competition, adherence to rules, team play, frustration and joy are all characteristics inherent in sport that make it a perfect "school for life". This paper presents a…

76 FR 37375 - Meeting of the Public Safety Officer Medal of Valor Review Board

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-27

... INFORMATION: The Public Safety Officer Medal of Valor Review Board carries out those advisory functions... who wish to participate must register at least seven (7) days in advance of the meeting/conference... registration. Anyone requiring special accommodations should contact Mr. Joy at least seven (7) days in advance...

Literacy, Self-esteem and Locus of Control

ERIC Educational Resources Information Center

Galbraith, Alison; Alexander, Joy

2005-01-01

In this article, Alison Galbraith and Joy Alexander use case studies of a group of primary school pupils to examine the efficacy of an integrated, eclectic approach to the teaching of literacy, including whether constructs such as self-concept and self-esteem have a bearing on academic achievement. Circle Time activities, interactive teaching…

Longing for Books: Reasons for Reading Literature

ERIC Educational Resources Information Center

Leggo, Carl

2011-01-01

What is the hold of literature on a reader's imagination, on my imagination? I remember many hours spent with books in a kind of romantic entanglement, and heartful obsession, and joyful reverie. I certainly remember being lost with words, lost in enthusiastic abandonment. I loved the sounds of words, and the images they conjured, and the…

The Paradox of Gratitude

ERIC Educational Resources Information Center

Carr, David

2015-01-01

Since gratitude is a significant pro-social quality or virtue, it might be (and has been) considered of some educational concern. However, while it clearly needs to be understood as a response that is in some sense required or owed towards benefactors, gratitude would hardly seem genuine unless it is freely and perhaps joyfully given--perhaps on…

Chinese Students' Science-Related Experiences: Comparison of the ROSE Study in Xinjiang and Shanghai

ERIC Educational Resources Information Center

Yeung, Yau-yuen; Li, Yufeng

2015-01-01

Background: Students' daily-life experiences may render favorable effects on the students' affective domain like interest, enthusiasm, motivation, joy, curiosity, awareness, and eagerness to learn science as not commonly found in the classroom environment. However, no rigorous research has been reported on those aspects in Mainland China despite…

Teaching with Joy: Educational Practices for the Twenty-First Century

ERIC Educational Resources Information Center

Shelton-Colangelo, Sharon, Ed.; Mancuso, Carolina, Ed.; Duvall, Mimi, Ed.

2006-01-01

This edited collection addresses the growing need for ideas and methods conducive to holistic educational practices and aims to encourage more personal growth in students too often distracted by the background noise of war, violence, racism, and environmental deterioration. The contributors are working teachers and professors who have integrated a…

Counting on COUNTER: The Current State of E-Resource Usage Data in Libraries

ERIC Educational Resources Information Center

Welker, Josh

2012-01-01

Any librarian who has managed electronic resources has experienced the--for want of words--"joy" of gathering and analyzing usage statistics. Such statistics are important for evaluating the effectiveness of resources and for making important budgeting decisions. Unfortunately, the data are usually tedious to collect, inconsistently organized, of…

The Joy of Reading Groups

ERIC Educational Resources Information Center

Southwood, Sue

2012-01-01

Reading groups or book clubs have become increasingly popular in recent years, with many libraries, bookshops and workplaces hosting meetings, while a wealth of support is available online. They provide a chance to read, share opinions, chat and have fun--each one will be unique in how it works. Discussing books can help to reinforce, change or…

Gardening, Tutoring, and Service by and for Latinos: La Esperanza

ERIC Educational Resources Information Center

Bussert-Webb, Kathy

2009-01-01

This paper describes a community service learning (CSL) project that helped sixteen Latino/a teacher trainees in the areas of caring, social justice, bias reduction, teaching experience, personal growth, joy, and collaboration. The project was significant because the participants and the children they tutored were all Latinos who had shared…

Blame It on the Engineers

ERIC Educational Resources Information Center

Roman, Harry T.

2004-01-01

The nation's industrial revolution began after the Civil War. Thomas Edison codified the simple and repeatable process of invention, and off the country went on an inventive joy ride that shows no sign of letting up. Undoubtedly, Edison's greatest invention was the process of industrial research, for equipped with it people can make products and…

Examining the Technique Class: Re-Examining Feedback

ERIC Educational Resources Information Center

Barr, Sherrie

2009-01-01

The technique class can be an amalgam of frustration and joy, cautious imitation and mindless replication, being right and being wrong. Competing requisites, such as a desire for expressive freedom in relation to the demand that a movement be precisely structured, can unwittingly create a tension between teachers and students. The reasons for such…

Tools of the Trade: Effective Strategies To Support the Collaboration of Educators in Rural Schools.

ERIC Educational Resources Information Center

Salyer, B. Keith; Thyfault, Alberta; Curran, Christina

This paper discusses strategies with the potential to enhance student learning, teacher collaboration, building management, and joy within the rural school setting. With the goal of fostering education that makes sense to students, three general categories of strategies are considered: curriculum, classroom management, and building management.…

3 CFR 8505 - Proclamation 8505 of April 28, 2010. National Foster Care Month, 2010

Code of Federal Regulations, 2011 CFR

2011-01-01

... in foster care deserve the happiness and joy every child should experience through family life and a safe, loving home. Families provide children with unconditional love, stability, trust, and the support... they must leave foster care and enter adulthood without the support of a permanent family. Much work...

On a Path toward Thriving

ERIC Educational Resources Information Center

Benson, Peter L.

2012-01-01

As caring adults in the lives of youth, many people are privileged to witness young people discover an aspect of themselves that gives them joy and energy, and propels them toward exploration and expression. When this aspect of their lives--their "spark"--is connected to people and places that encourage it, people also witness something amazing.…

The Joy of Telecomputing: Everything You Need to Know about Going On-Line at Home.

ERIC Educational Resources Information Center

Pearlman, Dara

1984-01-01

Discusses advantages and pleasures of utilizing a personal computer at home to receive electronic mail; participate in online conferences, software exchanges, and game networks; do shopping and banking; and have access to databases storing volumes of information. Information sources for the services mentioned are included. (MBR)

The Art of Learning: A Guide to Outstanding North Carolina Arts in Education Programs.

ERIC Educational Resources Information Center

Herman, Miriam L.

The Arts in Education programs delineated in this guide complement the rigorous arts curriculum taught by arts specialists in North Carolina schools and enable students to experience the joy of the creative process while reinforcing learning in other curricula: language arts, mathematics, social studies, science, and physical education. Programs…

Dogs, Cats, and Kids: Integrating Yoga into Elementary Physical Education

ERIC Educational Resources Information Center

Toscano, Lisa; Clemente, Fran

2008-01-01

This article describes the benefits of integrating yoga into elementary physical education classes. Taught as warm-up exercises or as an entire class, yoga offers children of any age and physical ability the opportunity to experience success in physical activity. Children need to experience joy while participating in physical activity in order to…

The Literary Anthology, Revised and Excised

ERIC Educational Resources Information Center

Howard, Jennifer

2007-01-01

This article reports that "The Norton Anthology of English Literature" has new competition in a genre with an uncertain future. The first edition of the Norton appeared in 1962. Since then, the mighty tome has gone through eight editions and introduced generations of undergraduates to the joys (or sorrows) of Chaucer, Milton, and Keats. For many,…

Novel Choices, Pun Intended

ERIC Educational Resources Information Center

Shanley, Roger W.

2006-01-01

In this article, the author explains why he considers "Animal Dreams" by Barbara Kingsolver, "Ceremony" by Leslie Marmon Silko, and "The Joy Luck Club" by Amy Tan as the most desirable books for students. He cites that several questions guide him in selecting these books. These questions include the following: (1) Why recommend certain texts to…

3 CFR 8349 - Proclamation 8349 of February 27, 2009. Read Across America Day, 2009

Code of Federal Regulations, 2010 CFR

2010-01-01

... A Proclamation Read Across America Day provides an opportunity to support efforts to excite children... citizens to celebrate the joy and emphasize the importance of reading. Every American child deserves the... lands. Reading provides unending enjoyment and helps unlock a child’s creative potential. We must make...

Nicholas Hobbs and Schools of Joy

ERIC Educational Resources Information Center

Newman, Dee

2012-01-01

In creating Project Re-ED, Nicholas Hobbs (1913-1983) embarked on a bold new approach to emotionally troubled children and youth. Re-ED, an acronym for the Re-education of Emotionally Disturbed Children, builds on positive concepts of normalcy and health rather than deviance and illness. Hobbs had been impressed by the "educateur" of Europe and…

Promoting the Joy of Reading without Killing It

ERIC Educational Resources Information Center

Beckham, Sonja

2011-01-01

Schools and teachers act to a limited degree in "loco parentis", thus assuming the role of parents, especially in the health and safety of minors in attendance at public school, but also in setting educational standards. Public schools have been delegated this role and implement policies, programs, and procedures that sometimes, unintentionally,…

Feminist Pedagogy Meets Feminist Therapy: Teaching Feminist Therapy in Women's Studies

ERIC Educational Resources Information Center

Magnet, Shoshana; Diamond, Shaindl

2010-01-01

The affective realm--including sorrow, pain, ecstasy, vulnerability, joy, and rage--is a central component of feminist teaching and learning. Feminist classrooms are spaces where strong feelings are raised, paradigms shift, and ruptures are created. Coming to feminist consciousness may involve grief, anger, and sadness for students. Speaking about…

Assisted Cycling Tours

ERIC Educational Resources Information Center

Hollingsworth, Jan Carter

2008-01-01

This article discusses Assisted Cycling Tours (ACT), a Westminster, Colorado based 501(c)3, non-profit that is offering the joy of bicycle tours in breathtaking, scenic locations to children and adults with developmental and physical disabilities and their families. ACT was founded by Bob Matter and his son David with a goal of opening up the…

English Education and Aging.

ERIC Educational Resources Information Center

Gillis, Candida

1983-01-01

Suggests that English teachers are in an excellent position to help students learn about the aged and aging because they know literature that treats the joys and pains of later life and they understand how language shapes and reflects cultural attitudes. Proposes objectives and presents samples of activities to be used in an aging unit. (MM)

The Early Childhood Community Gives Back: Exchange Center Makeover Project

ERIC Educational Resources Information Center

Exchange: The Early Childhood Leaders' Magazine Since 1978, 2010

2010-01-01

The excitement, joy, and big smiles still permeate Jewel's Learning Center since the surprise announcement in June. Over the past several months the Makeover partners have been busy working with Miss Charlotte, Miss Jewel, and staff to create design plans necessary for final approval. Charlotte, with the help of Collaborative for Children and…

Understanding World Economic History

ERIC Educational Resources Information Center

Whaples, Robert

2013-01-01

One joy of studying history is discovering people living meaningful lives and behaving in unusual ways that are startling to the modern reader--young or old. Why did pre-modern people living hundreds or even thousands of years ago do things so differently than we do? Robert Whaples states that Economic historians conclude that the key difference…

Laughing Rats? Playful Tickling Arouses High-Frequency Ultrasonic Chirping in Young Rodents

ERIC Educational Resources Information Center

Panksepp, Jaak; Burgdorf, Jeffrey

2010-01-01

In this reprint of a seminal article, once considered quite controversial, the authors discuss their radical claim that rats laugh. Even more provocative, the authors found that this rat-joy sound, especially evident during play, could be amplified dramatically by what they formally call heterospecific (cross-species) handplay (tickling). The…

It's All Good! The Trials and Tribulations of Parenting

ERIC Educational Resources Information Center

Chesney, Scott

2006-01-01

In this article, the author, who has an internet self-help radio program called "Maximizing Life with Scott Chesney" on VoiceAmerica, describes the joys and healing his children brings him daily since his diagnosis with Foix-Alajouanine Syndrome. He realized that, after a tour of 15 countries researching alternative medicine and speaking and…

Emily and Rebecca: A Tale of Two Teachers

ERIC Educational Resources Information Center

Brown, S.W.

2005-01-01

Using a qualitative study, two teachers, Emily and Rebecca, who started their teaching careers in their forties were interviewed and followed for 3 years to document their experiences in the teaching profession. The tale of these two teachers includes their joys, frustrations, and problems that surround their lives as middle school math teachers.…

Rediscovering the Joy of Poetry

ERIC Educational Resources Information Center

Keil, Katherine

2005-01-01

Katherine Keil, a high school English teacher, has developed an approach that goes beyond simply teaching poetry to creating classrooms that celebrate poetry in order to overcome the fear of poetry in students and the teacher. She encourages students to play with language, publishes student's work to a web site and models the writing process…

Where's Wonder?

ERIC Educational Resources Information Center

Burton, Fred

2013-01-01

After 36 years of working as a progressive educator in American schools, the author notes the near absence of joy, passion, and imagination that today's students experience. He asks, "Where's wonder?" In this essay, the author makes a case for the role of wonder in learning as he reflects on his work with schools and museum educators at…

Narrative Nonfiction: A Writer Reflects on Writing Real Stories

ERIC Educational Resources Information Center

Hakim, Joy

2016-01-01

More than a decade has passed since "American Educator" featured the work of Joy Hakim, a writer whose nonfictional accounts of history and science have long fascinated students and teachers alike. With the advent of the Common Core State Standards, and their strong emphasis on nonfiction, Hakim's accounts may prove useful to educators…

Injustice and Irony: Students Respond to Japanese American Internment Picturebooks

ERIC Educational Resources Information Center

Youngs, Suzette

2012-01-01

Ideological assumptions about childhood play into the production and selection of children's literature. Various ideologies proclaim that children should be happy and free from stories of evil, children's literature should help children encounter the joys in life, it should be filled with bright colors to keep children's attention, and it should…

Why Secrets Matter to Children

ERIC Educational Resources Information Center

Mogel, Wendy

2013-01-01

In this article, Wendy Mogel describes a time in a child's life that many parents need to be reminded of--"joyful secrecy." It is an essential part of growing up, just like the carefree days described in "The Adventures of Huckleberry Finn" (Mark Twain). Healthy children's development still requires it even if we are…

Sport and Children's Spirituality: An Australian Perspective

ERIC Educational Resources Information Center

Moriarty, Micheline Wyn

2013-01-01

The benefits of sport and physical activity are endorsed by a number of professionals as a means of improving children's health and their sense of well-being, and their unity with the natural world, other people and the Transcendent. For children, sport is a spiritual source of joy and wonder. Using Champagne's "spiritual modes of…

Joys and Mysteries: An Interview with Debra W. Fritts.

ERIC Educational Resources Information Center

Gamble, Harriet

2002-01-01

Presents an interview with Debra W. Fritts, a ceramic artist who created handbuilt terra-cotta sculptures. Focuses on topics, such as her childhood, her beginning interests in art, her teaching, her growth as an artist, and the techniques she uses when creating her sculptures. Includes directions for a rattle project. (CMK)

Keeping PCs up to Date Can Be Fun

ERIC Educational Resources Information Center

Goldsborough, Reid

2004-01-01

The "joy" of computer maintenance takes many forms. These days, automation is the byword. Operating systems such as Microsoft Windows and utility suites such as Symantec's Norton Internet Security let you automatically keep crucial parts of your computer system up to date. It's fun to watch the technology keep tabs on itself. This document offers…

The Joy of Being: Making Way for Young Children's Natural Mindfulness

ERIC Educational Resources Information Center

Erwin, Elizabeth J.; Robinson, Kimberly A.

2016-01-01

This article offers a novel and timely context for understanding mindfulness practices in early childhood education. Positioned within a larger social context of mindfulness, we conducted an extensive systematic review of the literature to examine the scope and nature of mindfulness and early childhood. We found that mindfulness and young children…

Musical Understanding, Musical Works, and Emotional Expression: Implications for Education

ERIC Educational Resources Information Center

Elliott, David J.

2005-01-01

What do musicians, critics, and listeners mean when they use emotion-words to describe a piece of instrumental music? How can "pure" musical sounds "express" emotions such as joyfulness, sadness, anguish, optimism, and anger? Sounds are not living organisms; sounds cannot feel emotions. Yet many people around the world believe they hear emotions…

Our Own: Adopting and Parenting the Older Child.

ERIC Educational Resources Information Center

Maskew, Trish

Children adopted when they are older come with histories, fully formed personalities, and intense anger over what they have lost. Drawing on stories of families who have adopted older children, as well as research, interviews with professionals, and opinions of adults who were adopted as children, this book explores the joys and challenges of…

Multi-Age Classrooms. NEA Teacher-to-Teacher Books.

ERIC Educational Resources Information Center

Gutloff, Karen, Ed.

This guide is designed for elementary school teachers to assist them in developing multi-age classrooms as part of their school restructuring efforts. Each of six sections presents a story from teachers who describe the challenges and joys of multi-age teaching, from parent backlash to school district support and praise. Section 1, "Step by…

Rearview Memories

ERIC Educational Resources Information Center

Gross, Gwen E.

2008-01-01

In this article, the author shares her experience when she was still a student until she became a superintendent. In her 17th year in the superintendency, the author finds the joys of her work all around her, grateful to be bestowed with the gift of leadership. She shares with colleagues a few especially meaningful moments from her professional…

Shifting with the Paradigm: LJ's Picks & Pans for ALA in Disneyland

ERIC Educational Resources Information Center

Berry, John N., III

2008-01-01

The feelings of librarians planning for the American Library Association (ALA) conference at Disneyland (aka Anaheim, California, June 26-July 2) range from moderate pleasure to dread. Some remember the joys and difficulties of Orlando, especially the exorbitant cab fares and mediocre restaurants. Others quail at screaming kids and tourists in…

Creative Endeavors: Inspiring Creativity in a First Grade Classroom

ERIC Educational Resources Information Center

Cress, Susan W.; Holm, Daniel T.

2016-01-01

With an emphasis on high-stakes testing and a focused curriculum, it would seem at times, the joy of creativity is missing from the classroom. This article describes a curricular approach the children named "Creative Endeavors", as implemented by a first grade teacher. The approach is described in three phases. In the exploratory stage…

The Separate and Cumulative Effects of TBI and PTSD on Cognitive Function and Emotional Control

DTIC Science & Technology

2009-04-01

CADDIE 80. SHY 80. BABY 80. HATRED 81. BOMB 81. TENANT 81. BUILDING 81. JOYFUL 81. SLIME 82. WMD 82. NFL 82. TOWER...82. SONG 82. FRAUD 83. BASRA 83. PARTISAN 83. HORSE 83. PLEASURE 83. MOLD 84. GUN 84. REDECORATE 84. SLUSH 84. COMEDY

Solar Energy: Fun in the Sun

ERIC Educational Resources Information Center

Keppler, Mary Lee

2012-01-01

Summer brings to mind the joys of vacation and spending time outdoors. The author looks forward to the summer months, particularly June--that's when they hold Junior Naturalist Camp at the Fairchild Tropical Botanic Garden in Coral Gables, Florida. While she enjoys each day of camp, one in particular really brings out her inner student--Solar…

"Save the Music?" Toward Culturally Relevant, Joyful, and Sustainable School Music

ERIC Educational Resources Information Center

Koza, Julia Eklund

2006-01-01

In recent years saving the music has become a favorite project of major corporations, especially as privatization of public schooling has gained momentum. Here, the author presents examples of these projects like the corporate-sponsored initiative "VH1 Save the Music" which claims helping flailing school music programs. Among other things, she…

Parental Perceptions of Effective Educators for Emotionally Impaired Students

ERIC Educational Resources Information Center

Folske-Starlin, Helane

2017-01-01

The voices of families with children identified as EBD needed to be heard. This dissertation study allowed those families to express their joys, needs and concerns. Included with the voices of families are the voices of educators that are teaching a struggling population of children and usually in an inclusive classroom. This dissertation study…

Recycling and Ambivalence: Quantitative and Qualitative Analyses of Household Recycling among Young Adults

ERIC Educational Resources Information Center

Ojala, Maria

2008-01-01

Theories about ambivalence, as well as quantitative and qualitative empirical approaches, are applied to obtain an understanding of recycling among young adults. A questionnaire was mailed to 422 Swedish young people. Regression analyses showed that a mix of negative emotions (worry) and positive emotions (hope and joy) about the environmental…

Joy of Nature, "Friluftsliv" Education and Self: Combining Narrative and Cultural-Ecological Approaches to Environmental Sustainability

ERIC Educational Resources Information Center

Gurholt, Kirsti Pedersen

2014-01-01

Autobiographies of prominent environmentalists describe that their early lives have been rich in personal experiences of nature. The early childhood experiences of philosopher and climber Arne Naess (1912-2009) inspired the development of deep ecology philosophy, which markedly influenced the emergence of Norwegian "friluftsliv"…

Dialogic Reading Aloud to Promote Extensive Reading

ERIC Educational Resources Information Center

Jacobs, George M.

2016-01-01

How can teachers motivate students to read extensively in a second language? One strategy is for teachers to read aloud to students to promote the joys of reading generally, to build students' language skills and to introduce students to specific authors, book series, genres, websites, etc. This article begins by discussing why teachers might want…