Monitoring of Deep Foundation Pit Support and Construction Process in Soft Soil Area of Pearl River Delta

NASA Astrophysics Data System (ADS)

Weiyi, Xie; Pengcheng

2018-03-01

The deep foundation pit supporting technology in the soft soil area of the Pearl River Delta is more complicated, and many factors influence and restrict it. In this project as an example, according to the geological conditions and the surrounding circumstances, the main foundation using bored piles and pre-stressed anchor cable supporting structure + five axis cement mixing pile curtain supporting form; partial use of double row piles supporting structure + five axis cement mixing pile curtain support type. Through the monitoring results of construction show that the foundation pit, the indicators of environmental changes are in the design range, the supporting scheme of deep foundation pit technology is feasible and reliable.

Foundation of Curriculum in Ethiopia: Historical, Philosophical, Psychological and Sociological Perspectives

ERIC Educational Resources Information Center

Argaw, Aweke Shishigu

2015-01-01

Foundations are the forces that influence the minds of curriculum developers, which affect the content and structure of the curriculum. These forces are beliefs and orientations as well as conceptions of learning and the needs of society. Foundation of curriculum is rooted with the foundation of education. Historically, modern curriculum and…

Initial investigation of reinforced concrete filled tubes for use in bridge foundations.

DOT National Transportation Integrated Search

2012-06-01

The Washington State Department of Transportation (WSDOT) frequently employs deep pile or caisson bridge : foundations for its bridge structures. Deep pile and drilled shaft foundations are increasingly important for seismic : design in Washington st...

Load and resistance factor design of bridge foundations accounting for pile group-soil interaction.

DOT National Transportation Integrated Search

2015-11-01

Pile group foundations are used in most foundation solutions for transportation structures. Rigorous and reliable pile design methods are : required to produce designs whose level of safety (probability of failure) is known. By utilizing recently dev...

Experimental Verification of Integrity of Low-Pressure Injection Piles Structure - Pile Internal Capacity

NASA Astrophysics Data System (ADS)

Pachla, Henryk

2017-12-01

The idea of strengthening the foundation using injection piles lies in transferring loads from the foundation to the piles anchorage in existing structure and formed in the soil. Such a system has to be able to transfer loads from the foundation to the pile and from the pile onto the soil. Pile structure often reinforced with steel element has to also be able to transfer such a loading. According to the rules of continuum mechanics, the bearing capacity of such a system and a deformation of its individual elements can be determined by way of an analysis of the contact problem of three interfaces. Each of these surfaces is determined by different couples of materials. Those surfaces create: pile-foundation anchorage, bonding between reinforcement and material from which the pile is formed and pilesoil interface. What is essential is that on the contact surfaces the deformation of materials which adhere to each other can vary and depends on the mechanical properties and geometry of these surfaces. Engineering practice and experimental research point out that the failure in such structures occurs at interfaces. The paper is concentrating on presenting the experiments on interaction between cement grout and various types of steel reinforcement. The tests were conducted on the special low pressure injection piles widely used to strengthen foundations of already existing structures of historical buildings due to the technology of formation and injection pressure.

Mutation-induced spatial differences in neuraminidase structure and sensitivity to neuraminidase inhibitors

NASA Astrophysics Data System (ADS)

Yang, Zhi-wei; Hao, Dong-xiao; Che, Yi-zhuo; Yang, Jia-hui; Zhang, Lei; Zhang, Sheng-li

2018-01-01

Not Available Project supported by the National Natural Science Foundation of China (Grant Nos. 11374237 and 11504287), Fundamental Research Funds for the Central Universities, China, China Postdoctoral Science Foundation (Grant No. 2017M613147), and Shaanxi Province Postdoctoral Science Foundation, China.

Out-of-plane (SH) soil-structure interaction: a shear wall with rigid and flexible ring foundation

NASA Astrophysics Data System (ADS)

Le, Thang; Lee, Vincent W.; Luo, Hao

2016-02-01

Soil-structure interaction (SSI) of a building and shear wall above a foundation in an elastic half-space has long been an important research subject for earthquake engineers and strong-motion seismologists. Numerous papers have been published since the early 1970s; however, very few of these papers have analytic closed-form solutions available. The soil-structure interaction problem is one of the most classic problems connecting the two disciplines of earthquake engineering and civil engineering. The interaction effect represents the mechanism of energy transfer and dissipation among the elements of the dynamic system, namely the soil subgrade, foundation, and superstructure. This interaction effect is important across many structure, foundation, and subgrade types but is most pronounced when a rigid superstructure is founded on a relatively soft lower foundation and subgrade. This effect may only be ignored when the subgrade is much harder than a flexible superstructure: for instance a flexible moment frame superstructure founded on a thin compacted soil layer on top of very stiff bedrock below. This paper will study the interaction effect of the subgrade and the superstructure. The analytical solution of the interaction of a shear wall, flexible-rigid foundation, and an elastic half-space is derived for incident SH waves with various angles of incidence. It found that the flexible ring (soft layer) cannot be used as an isolation mechanism to decouple a superstructure from its substructure resting on a shaking half-space.

Investigation of the foundations of a Byzantine church by three-dimensional seismic tomography

NASA Astrophysics Data System (ADS)

Polymenakos, L.; Papamarinopoulos, S.; Miltiadou, A.; Charkiolakis, N.

2005-02-01

Byzantine public buildings are of high historical and cultural value. Churches, in particular, are of high architectural and artistic value because they are built using various materials and construction techniques and may contain significant frescoes and mosaics. The knowledge of the state of foundations and ground material conditions is important for their proper restoration and preservation. Seismic tomography is employed to investigate the foundation structure and ground material of a Byzantine church. Energy sources are placed across the floor of the church and surrounding courts, while recorders are placed in a subterranean crypt. Travel time data are analyzed and processed with a three-dimensional (3D) tomographic inversion software in order to construct seismic velocity images at the foundation and below foundation level. Velocity variations are known to correlate well with the lithological character of the earth materials, thus providing important structural and lithological information. A case study from a Byzantine church of 11th c. A.D. in the suburbs of Athens, Greece, is presented. The objective of this research is the nondestructive investigation of unknown underground structures or void spaces, mainly under the floor of the building. The results are interpreted in terms of the foundation elements as well as of significant variations in the earth material character.

Restricted access Giant kelp, Macrocystis pyrifera, increases faunal diversity through physical engineering

USGS Publications Warehouse

Miller, Robert J.; Lafferty, Kevin D.; Lamy, Thomas; Kui, Li; Rassweiler, Andrew; Reed, Daniel C.

2018-01-01

Foundation species define the ecosystems they live in, but ecologists have often characterized dominant plants as foundational without supporting evidence. Giant kelp has long been considered a marine foundation species due to its complex structure and high productivity; however, there is little quantitative evidence to evaluate this. Here, we apply structural equation modelling to a 15-year time series of reef community data to evaluate how giant kelp affects the reef community. Although species richness was positively associated with giant kelp biomass, most direct paths did not involve giant kelp. Instead, the foundational qualities of giant kelp were driven mostly by indirect effects attributed to its dominant physical structure and associated engineering influence on the ecosystem, rather than by its use as food by invertebrates and fishes. Giant kelp structure has indirect effects because it shades out understorey algae that compete with sessile invertebrates. When released from competition, sessile species in turn increase the diversity of mobile predators. Sea urchin grazing effects could have been misinterpreted as kelp effects, because sea urchins can overgraze giant kelp, understorey algae and sessile invertebrates alike. Our results confirm the high diversity and biomass associated with kelp forests, but highlight how species interactions and habitat attributes can be misconstrued as direct consequences of a foundation species like giant kelp.

Teaching foundational topics and scientific skills in biochemistry within the conceptual framework of HIV protease.

PubMed

Johnson, R Jeremy

2014-01-01

HIV protease has served as a model protein for understanding protein structure, enzyme kinetics, structure-based drug design, and protein evolution. Inhibitors of HIV protease are also an essential part of effective HIV/AIDS treatment and have provided great societal benefits. The broad applications for HIV protease and its inhibitors make it a perfect framework for integrating foundational topics in biochemistry around a big picture scientific and societal issue. Herein, I describe a series of classroom exercises that integrate foundational topics in biochemistry around the structure, biology, and therapeutic inhibition of HIV protease. These exercises center on foundational topics in biochemistry including thermodynamics, acid/base properties, protein structure, ligand binding, and enzymatic catalysis. The exercises also incorporate regular student practice of scientific skills including analysis of primary literature, evaluation of scientific data, and presentation of technical scientific arguments. Through the exercises, students also gain experience accessing computational biochemical resources such as the protein data bank, Proteopedia, and protein visualization software. As these HIV centered exercises cover foundational topics common to all first semester biochemistry courses, these exercises should appeal to a broad audience of undergraduate students and should be readily integrated into a variety of teaching styles and classroom sizes. © 2014 The International Union of Biochemistry and Molecular Biology.

Evaluation of soil-foundation-structure interaction effects on seismic response demands of multi-story MRF buildings on raft foundations

NASA Astrophysics Data System (ADS)

Abdel Raheem, Shehata E.; Ahmed, Mohamed M.; Alazrak, Tarek M. A.

2015-03-01

Soil conditions have a great deal to do with damage to structures during earthquakes. Hence the investigation on the energy transfer mechanism from soils to buildings during earthquakes is critical for the seismic design of multi-story buildings and for upgrading existing structures. Thus, the need for research into soil-structure interaction (SSI) problems is greater than ever. Moreover, recent studies show that the effects of SSI may be detrimental to the seismic response of structure and neglecting SSI in analysis may lead to un-conservative design. Despite this, the conventional design procedure usually involves assumption of fixity at the base of foundation neglecting the flexibility of the foundation, the compressibility of the underneath soil and, consequently, the effect of foundation settlement on further redistribution of bending moment and shear force demands. Hence the SSI analysis of multi-story buildings is the main focus of this research; the effects of SSI are analyzed for typical multi-story building resting on raft foundation. Three methods of analysis are used for seismic demands evaluation of the target moment-resistant frame buildings: equivalent static load; response spectrum methods and nonlinear time history analysis with suit of nine time history records. Three-dimensional FE model is constructed to investigate the effects of different soil conditions and number of stories on the vibration characteristics and seismic response demands of building structures. Numerical results obtained using SSI model with different soil conditions are compared to those corresponding to fixed-base support modeling assumption. The peak responses of story shear, story moment, story displacement, story drift, moments at beam ends, as well as force of inner columns are analyzed. The results of different analysis approaches are used to evaluate the advantages, limitations, and ease of application of each approach for seismic analysis.

Centrifuge Modeling of the Thermo-Mechanical Response of Energy Foundations

NASA Astrophysics Data System (ADS)

Goode, Joseph Collin, III

This thesis presents the results from a series of centrifuge tests performed to understand the profiles of thermo-mechanical axial strain, axial displacement, and axial stress in semi-floating and end-bearing energy foundations installed in dry Nevada sand and Bonny silt layers during different combinations of mechanical loading and foundation heating. In addition to the construction details for the centrifuge scale-model reinforced concrete energy foundations, the results from 1 g thermo-mechanical characterization tests performed on the foundations to evaluate their mechanical and thermal material properties are presented in this thesis. In general, the centrifuge-scale tests involve application of an axial load to the head of the foundation followed by circulation of a heat exchange fluid through embedded tubing to bring the foundation to a constant temperature. After this point, mechanical loads were applied to the foundation to characterize their thermo-mechanical response. Specifically, loading tests to failure were performed on the semi-floating foundation installed in different soil layers to characterize the impact of temperature on the load-settlement curve, and elastic loading tests were performed on the end-bearing foundation to characterize the impact of temperature on the mobilized side shear distributions. During application of mechanical loads and changes in foundation temperature, the axial strains are measured using embedded strain gages. The soil and foundation temperatures, foundation head movement, and soil surface deformations are also monitored to characterize the thermo-mechanical response of the system. The tests performed in this study were used to investigate different phenomena relevant to the thermo-mechanical response of energy foundations. First, the role of end-restraint boundary conditions in both sand and silt were investigated by comparing the strain distributions for the end-bearing and semi-floating foundations in each soil type. The tests on sand and silt permit evaluation of the soil-structure interaction in dry and unsaturated soils with different mechanisms of side shear resistance (i.e., primarily frictional and primarily cohesive, respectively). End-bearing foundations were observed to have higher magnitudes of thermal axial stress than semi-floating foundations, with a more uniform distribution in thermal axial strain in the sand. A general conclusion from these tests is that the unsaturated silt led to a more pronounced soil structure interaction effect than the dry sand. For example, temperature did not affect the ultimate capacity of the semi-floating foundation in dry sand, while it had a pronounced effect in unsaturated silt. Two approaches for controlling the foundation head restraint boundary condition were investigated for the end-bearing foundation in sand: load control conditions (free expansion) as well as stiffness control conditions (restrained expansion). As expected, greater expansion was observed in the case of free expansion, and greater thermal axial stresses were observed in the case of restrained expansion. The effects of temperature cycles were also investigated for the semi-floating foundation in Bonny silt, and less upward movement was observed during each cycle of heating, with a slight softening in behavior on each cycle. Overall, the results provide a suite of information which is suitable to define soil-structure interaction parameters under realistic stress states for deep foundations.

MODEL TESTS AND 3D ELASTIC FINITE ELEMENT ANALYSIS FOR STEEL PIPE PILES WITH WINGS IN STALLED IN SOIL CEMENT COLUMN

NASA Astrophysics Data System (ADS)

Tamai, Toshiyuki; Teramoto, Shuntarou; Kimura, Makoto

Steel pipe piles with wings installed in soil cement column is a composite foundation of pile consisting of soil improvement with cement and steel pipe with wings. This type of pile shows higher vertical bearing capacity when compared to steel pipe piles that are installed without soil cement. It is thought the wings contribute to higher bearing capacity of this type of piles. The wings are also thought to play the role of structural unification of pile foundations and load transfer. In this study, model test and 3D elastic finite element analysis was carried out in order to elucidate the effect of wings on the structural unification of pile foundation and the load transfer mechanism. Firstly, the model test was carried out in order to grasp the influence of pile with and without wings, the shape of wings of the pile and the unconfined compression strength of the soil cement on the structural unification of the pile foundation. The numerical analysis of the model test was then carried out on the intermediate part of the pile foundation with wings and mathematical model developed. Finally load tran sfer mechanism was checked for the entire length of the pile through this mathematical model and the load sharing ratio of the wings and stress distribution occurring in the soil cement clarified. In addition, the effect of the wing interval on the structural unification of the pile foundation and load transfer was also checked and clarified.

Revising Community College Bylaws to Protect Institutional Integrity: Process and Product.

ERIC Educational Resources Information Center

Katsinas, Stephen G.; And Others

1988-01-01

Describes the Board of Directors' of the Miami-Dade Community College Foundation development of new bylaws. Provides information on the foundation's structure and functions, the concern of the Ad Hoc Committee on Governance with the issues of quorum and board member oversight, and the responsibilities of the foundation's committees. (DMM)

Landscape genetic connectivity in a riparian foundation tree is jointly driven by climatic gradients and river networks

Treesearch

Samuel A. Cushman; Tamara Max; Nashelly Meneses; Luke M. Evans; Sharon Ferrier; Barbara Honchak; Thomas G. Whitham; Gerard J. Allan

2014-01-01

Fremont cottonwood (Populus fremonti) is a foundation riparian tree species that drives community structure and ecosystem processes in southwestern U.S. ecosystems. Despite its ecological importance, little is known about the ecological and environmental processes that shape its genetic diversity, structure, and landscape connectivity. Here, we combined...

Loss of foundation species: consequences for the structure and dynamics of forested ecosystems

Treesearch

Aaron M. Ellison; Michael S. Bank; Barton D. Clinton; Elizabeth A. Colburn; Katherine Elliott; Chelcy Rae Ford; David R. Foster; Brian D. Kloeppel; Jennifer D. Knoepp; Gary M. Lovett; Jacqueline Mohan; David A. Orwig; Nicholas L. Rodenhouse; William V. Sobczak; Kristina A. Stinson; Jeffrey K. Stone; Christopher M. Swan; Jill Thompson; Betsy Von Holle; Jackson R. Webster

2005-01-01

In many forested ecosystems, the architecture and functional ecology of certain tree species define forest structure and their species-specific traits control ecosystem dynamics. Such foundation tree species are declining throughout the world due to introductions and outbreaks of pests and pathogens, selective removal of individual taxa, and over-harvesting. Through a...

Building Capacity in Understanding Foundational Biology Concepts: A K-12 Learning Progression in Genetics Informed by Research on Children's Thinking and Learning

ERIC Educational Resources Information Center

Elmesky, Rowhea

2013-01-01

This article describes the substance, structure, and rationale of a learning progression in genetics spanning kindergarten through twelfth grade (K-12). The learning progression is designed to build a foundation towards understanding protein structure and activity and should be viewed as one possible pathway to understanding concepts of genetics…

A-3 Test Stand construction update

NASA Technical Reports Server (NTRS)

2007-01-01

The concrete foundation placed Dec. 18 (foreground) for Stennis Space Center's future A-3 Test Stand has almost completely cured by early January, according to Bo Clarke, NASA's contracting officer technical representative for the foundation contract. By late December, construction on foundations for many of the test stand's support structures - diffuser, liquid oxygen, isopropyl alcohol and water tanks and gaseous nitrogen bottle battery - had begun with the installation of (background) `mud slabs.' The slabs provide a working surface for the reinforcing steel and foundation forms.

A-3 Test Stand construction update

NASA Image and Video Library

2007-12-18

The concrete foundation placed Dec. 18 (foreground) for Stennis Space Center's future A-3 Test Stand has almost completely cured by early January, according to Bo Clarke, NASA's contracting officer technical representative for the foundation contract. By late December, construction on foundations for many of the test stand's support structures - diffuser, liquid oxygen, isopropyl alcohol and water tanks and gaseous nitrogen bottle battery - had begun with the installation of (background) `mud slabs.' The slabs provide a working surface for the reinforcing steel and foundation forms.

Time-domain representation of frequency-dependent foundation impedance functions

USGS Publications Warehouse

Safak, E.

2006-01-01

Foundation impedance functions provide a simple means to account for soil-structure interaction (SSI) when studying seismic response of structures. Impedance functions represent the dynamic stiffness of the soil media surrounding the foundation. The fact that impedance functions are frequency dependent makes it difficult to incorporate SSI in standard time-history analysis software. This paper introduces a simple method to convert frequency-dependent impedance functions into time-domain filters. The method is based on the least-squares approximation of impedance functions by ratios of two complex polynomials. Such ratios are equivalent, in the time-domain, to discrete-time recursive filters, which are simple finite-difference equations giving the relationship between foundation forces and displacements. These filters can easily be incorporated into standard time-history analysis programs. Three examples are presented to show the applications of the method.

26. "TEST STAND, STRUCTURAL, FOUNDATION PLAN." Specifications No. ENG043535572; Drawing ...

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

26. "TEST STAND, STRUCTURAL, FOUNDATION PLAN." Specifications No. ENG-04-353-55-72; Drawing No. 60-0912; sheet 25 of 148; file no. 1320/76. Stamped: RECORD DRAWING - AS CONSTRUCTED. Below stamp: Contract no. 4338, no change. - Edwards Air Force Base, Air Force Rocket Propulsion Laboratory, Test Stand 1-A, Test Area 1-120, north end of Jupiter Boulevard, Boron, Kern County, CA

Response analysis of a nuclear containment structure with nonlinear soil-structure interaction under bi-directional ground motion

NASA Astrophysics Data System (ADS)

Kumar, Santosh; Raychowdhury, Prishati; Gundlapalli, Prabhakar

2015-06-01

Design of critical facilities such as nuclear power plant requires an accurate and precise evaluation of seismic demands, as any failure of these facilities poses immense threat to the community. Design complexity of these structures reinforces the necessity of a robust 3D modeling and analysis of the structure and the soil-foundation interface. Moreover, it is important to consider the multiple components of ground motion during time history analysis for a realistic simulation. Present study is focused on investigating the seismic response of a nuclear containment structure considering nonlinear Winkler-based approach to model the soil-foundation interface using a distributed array of inelastic springs, dashpots and gap elements. It is observed from this study that the natural period of the structure increases about 10 %, whereas the force demands decreases up to 24 % by considering the soil-structure interaction. Further, it is observed that foundation deformations, such as rotation and sliding are affected by the embedment ratio, indicating an increase of up to 56 % in these responses for a reduction of embedment from 0.5 to 0.05× the width of the footing.

Field investigation of a 100-year-old timber crib foundation at a historic copper mine

Treesearch

James Wacker; Xiping Wang; Douglas R. Rammer

2010-01-01

In June 2009, the authors conducted a comprehensive on-site evaluation of the timber crib foundation at Alaska’s Historic Kennecott Mine Concentration Mill Building. The primary goal of the 6-day inspection was to assess the physical conditions of the existing timber crib foundation and identify timber members and areas that have structural deficiencies. The inspection...

Four-square. Practice profitability stands on four foundations.

PubMed

Mefford, Daniel D

2003-09-01

A medical practice's profitability stands on four legs: physician productivity, accounts receivable, overhead costs and ancillary revenue. The author describes where weakness can occur in each of these foundations and how to remedy such structural defects.

Foundational model of structural connectivity in the nervous system with a schema for wiring diagrams, connectome, and basic plan architecture

PubMed Central

Swanson, Larry W.; Bota, Mihail

2010-01-01

The nervous system is a biological computer integrating the body's reflex and voluntary environmental interactions (behavior) with a relatively constant internal state (homeostasis)—promoting survival of the individual and species. The wiring diagram of the nervous system's structural connectivity provides an obligatory foundational model for understanding functional localization at molecular, cellular, systems, and behavioral organization levels. This paper provides a high-level, downwardly extendible, conceptual framework—like a compass and map—for describing and exploring in neuroinformatics systems (such as our Brain Architecture Knowledge Management System) the structural architecture of the nervous system's basic wiring diagram. For this, the Foundational Model of Connectivity's universe of discourse is the structural architecture of nervous system connectivity in all animals at all resolutions, and the model includes two key elements—a set of basic principles and an internally consistent set of concepts (defined vocabulary of standard terms)—arranged in an explicitly defined schema (set of relationships between concepts) allowing automatic inferences. In addition, rules and procedures for creating and modifying the foundational model are considered. Controlled vocabularies with broad community support typically are managed by standing committees of experts that create and refine boundary conditions, and a set of rules that are available on the Web. PMID:21078980

Approaches of Bill & Melinda Gates Foundation-Funded Intermediary Organizations to Structuring and Supporting Small High Schools in New York City

ERIC Educational Resources Information Center

Foley, Eileen

2010-01-01

In 2003, a few years after the Bill & Melinda Gates Foundation began implementing its small schools reform agenda, the Chancellor of the New York City Department of Education (DOE) announced a plan to replace large failing high schools in New York City with 200 small schools. In short order, the foundation and the Chancellor became partners…

Approaches of Bill & Melinda Gates Foundation-Funded Intermediary Organizations to Structuring and Supporting Small High Schools in New York City. Executive Summary

ERIC Educational Resources Information Center

Foley, Eileen

2010-01-01

In 2003, a few years after the Bill & Melinda Gates Foundation began implementing its small schools reform agenda, the Chancellor of the New York City Department of Education (DOE) announced a plan to replace large failing high schools in New York City with 200 small schools. In short order, the foundation and the Chancellor became partners with…

Helical piles: an innovative foundation design option for offshore wind turbines.

PubMed

Byrne, B W; Houlsby, G T

2015-02-28

Offshore wind turbines play a key part in the renewable energy strategy in the UK and Europe as well as in other parts of the world (for example, China). The majority of current developments, certainly in UK waters, have taken place in relatively shallow water and close to shore. This limits the scale of the engineering to relatively simple structures, such as those using monopile foundations, and these have been the most common design to date, in UK waters. However, as larger turbines are designed, or they are placed in deeper water, it will be necessary to use multi-footing structures such as tripods or jackets. For these designs, the tension on the upwind footing becomes the critical design condition. Driven pile foundations could be used, as could suction-installed foundations. However, in this paper, we present another concept-the use of helical pile foundations. These foundations are routinely applied onshore where large tension capacities are required. However, for use offshore, a significant upscaling of the technology will be needed, particularly of the equipment required for installation of the piles. A clear understanding of the relevant geotechnical engineering will be needed if this upscaling is to be successful. © 2015 The Author(s) Published by the Royal Society. All rights reserved.

Environmental Assessment (EA) for the Comprehensive Range Plan (CRP), Melrose Air Force Range (AFR), New Mexico

DTIC Science & Technology

2011-07-01

11,674 sq ft C-130 maintenance hangar with reinforced concrete footings, a foundation and footing slab, a structural steel frame, insulated metal...regional farming output significantly; however, it could potentially have a detrimental effect to the lessee. Environmental Justice – There are no...Facility – Construct a pre-engineered one story steel framed structure including the necessary concrete foundations to support the building.  SOF

Analysis of Foundation of Tall R/C Chimney Incorporating Flexibility of Soil

NASA Astrophysics Data System (ADS)

Jayalekshmi, B. R.; Jisha, S. V.; Shivashankar, R.

2017-09-01

Three dimensional Finite Element (FE) analysis was carried out for 100 and 400 m high R/C chimneys having piled annular raft and annular raft foundations considering the flexibility of soil subjected to across-wind load. Stiffness of supporting soil and foundation were varied to evaluate the significance of Soil-Structure Interaction (SSI). The integrated chimney-foundation-soil system was analysed by finite element software ANSYS based on direct method of SSI assuming linear elastic material behaviour. FE analyses were carried out for two cases of SSI namely, (1) chimney with annular raft foundation and (2) chimney with piled annular raft foundation. The responses in raft such as bending moments and settlements were evaluated for both the cases and compared to those obtained from the conventional method of analysis of annular raft foundation. It is found that the responses in raft vary considerably depending on the stiffness of the underlying soil and the stiffness of foundation. Piled raft foundations are better suited for tall chimneys to be constructed in loose or medium sand.

Probing the structure of multi-center molecules with odd–even high harmonics

NASA Astrophysics Data System (ADS)

Su, Ning; Yu, Shujuan; Li, Weiyan; Yang, Shiping; Chen, Yanjun

2018-05-01

Not Available Project supported by the National Natural Science Foundation of China (Grants No. 91750111), the Youth Foundation of Hebei Province Education Department, China (Grant No. QN2017028), the Fundamental Research Funds for Hebei GEO University, China (Grant No. BQ2017047), the Natural Science Foundation of Hebei Province, China (Grant No. A2015205161), and the Fundamental Research Funds for the Central Universities, China (Grant No. SNNU.GK201801009).

Continuation of down-hole geophysical testing for rock sockets : [technical summary].

DOT National Transportation Integrated Search

2013-11-01

The rock socket is critical to a drilled shaft : foundation because it lies within a rock stratum : and accounts for much of the capacity of the : foundational unit. Consistency of the rocks : structure and composition must be identifed : because ...

Finite element modeling of a shaking table test to evaluate the dynamic behaviour of a soil-foundation system

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

Abate, G.; Massimino, M. R.; Maugeri, M.

The deep investigation of soil-foundation interaction behaviour during earthquakes represent one of the key-point for a right seismic design of structures, which can really behave well during earthquake, avoiding dangerous boundary conditions, such as weak foundations supporting the superstructures. The paper presents the results of the FEM modeling of a shaking table test involving a concrete shallow foundation resting on a Leighton Buzzard sand deposit. The numerical simulation is performed using a cap-hardening elasto-plastic constitutive model for the soil and specific soil-foundation contacts to allow slipping and up-lifting phenomena. Thanks to the comparison between experimental and numerical results, the powermore » and the limits of the proposed numerical model are focused. Some aspects of the dynamic soil-foundation interaction are also pointed out.« less

Influence of foundation mass and surface roughness on dynamic response of beam on dynamic foundation subjected to the moving load

NASA Astrophysics Data System (ADS)

Tran Quoc, Tinh; Khong Trong, Toan; Luong Van, Hai

2018-04-01

In this paper, Improved Moving Element Method (IMEM) is used to analyze the dynamic response of Euler-Bernoulli beam structures on the dynamic foundation model subjected to the moving load. The effects of characteristic foundation model parameters such as Winkler stiffness, shear layer based on the Pasternak model, viscoelastic dashpot and characteristic parameter of mass on foundation. Beams are modeled by moving elements while the load is fixed. Based on the principle of the publicly virtual balancing and the theory of moving element method, the motion differential equation of the system is established and solved by means of the numerical integration based on the Newmark algorithm. The influence of mass on foundation and the roughness of the beam surface on the dynamic response of beam are examined in details.

Technology Solutions Case Study: Excavationless: Exterior-Side Foundation Insulation for Existing Homes

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

None

Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. This project describes an innovative, minimally invasive foundation insulation upgrade technique on an existing home that uses hydrovac excavation technology combined with a liquid insulating foam. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features,more » utility meters, and landscaping would be minimal or non-existent in an excavationless process.« less

An investigation of soil-structure interaction effects observed at the MIT Green Building

USGS Publications Warehouse

Taciroglu, Ertugrul; Çelebi, Mehmet; Ghahari, S. Farid; Abazarsa, Fariba

2016-01-01

The soil-foundation impedance function of the MIT Green Building is identified from its response signals recorded during an earthquake. Estimation of foundation impedance functions from seismic response signals is a challenging task, because: (1) the foundation input motions (FIMs) are not directly measurable, (2) the as-built properties of the super-structure are only approximately known, and (3) the soil-foundation impedance functions are inherently frequency-dependent. In the present study, aforementioned difficulties are circumvented by using, in succession, a blind modal identification (BMID) method, a simplified Timoshenko beam model (TBM), and a parametric updating of transfer functions (TFs). First, the flexible-base modal properties of the building are identified from response signals using the BMID method. Then, a flexible-base TBM is updated using the identified modal data. Finally, the frequency-dependent soil-foundation impedance function is estimated by minimizing the discrepancy between TFs (of pairs instrumented floors) that are (1) obtained experimentally from earthquake data and (2) analytically from the updated TBM. Using the fully identified flexible-base TBM, the FIMs as well as building responses at locations without instruments can be predicted, as demonstrated in the present study.

Foundation, excavation and radiation shielding concepts for a 16-m large lunar telescope

NASA Technical Reports Server (NTRS)

Chua, Koon M.; Johnson, Stewart W.

1991-01-01

NASA is considering a 16-m diameter optical telescope on the moon as a part of the Space Exploration Initiative. Fundamental concepts of engineering activities on the moon and how they can be applied to the establishment of a 16-m large lunar telescope (LLT) are discussed. These fundamental concepts include the engineering response of lunar soils and how they affect construction activities, namely, drilling, blasting, ripping, digging and compaction. A mirror support structure and foundation design concept is proposed. The foundation considered is a multiple contact points spud-can type footing. It does not appear that a deep foundation or the presence of bedrock is required to achieve the telescope foundation stiffness. The LLT system will include a regolith covered housing, the size of a small room, which will contain sensitive electronic equipment including charge coupled devices which need protection from cosmic radiation effects. A brief discussion is made on radiation, radiation transport and radiation effects on electronics and on humans. Radiation protection techniques and the different emplacement schemes for the LLT instrument housing for radiation protection are suggested. A structural concept of an early lunar based telescope is also presented.

12. ...CONCRETE IS BEING PLACED FOR THE FOUNDATION FOR THE ...

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

12. ...CONCRETE IS BEING PLACED FOR THE FOUNDATION FOR THE WEST END OF THE OGEE SECTION OF SPILLWAY STRUCTURE. Volume XVI, No. 20, September 29, 1939. - Prado Dam, Spillway, Santa Ana River near junction of State Highways 71 & 91, Corona, Riverside County, CA

Archaeological investigation by geotomography: structure of the foundation of Yingxian timber pagoda

NASA Astrophysics Data System (ADS)

Feng, Rui; Yan, Wei-Zhang; Feng, Guo-Zheng; Tao, Yu-Lu; Zhou, Hai-Nan; Li, Xiao-Qin

1998-03-01

It is significant to take a non-destructive inspection, one of advanced techniques, for detecting the internal structure and the present status of ancient cultural relics. The results detected by geotomography in Yingxian timber pagoda, Shanxi Province, are presented in this paper. The embankment in the stepped foundation shows a three circular structure in horizontal: the circular platform core is hard, homogenous and unharmed, out of which there are some radial collapsed grooves. The middle circle with a thickness of 2 to 4 m is a compacted layer and its loading capacity decreases then. The outer protective layer has a larger porosity and a weak loading capacity. An abnormal body is found out in the core, which has a circular shape and a reverse high-absorption coefficient in the shallow part, but appears a long-band shape and a low-absorption coefficient in the deep part. It might be a disturbance caused by artificial activities: the shallow part is probably a channel filled with loosen soil and the deep part is a hidden cave. It is found that the foundation of the courtyard is homogenous and integrated. Two soft and weakened areas in the north are related to the long-term run-off and drainage of groundwater. The inclination of the timber pagoda to the northwest and northeast relates to several factors, such as the inherited subsidence of the northern foundation, the lower loading capacity of the outer stepped foundation, seismic activity and timber deformation.

Natural frequency and vibration analysis of jacket type foundation for offshore wind power

NASA Astrophysics Data System (ADS)

Hung, Y.-C.; Chang, Y.-Y.; Chen, S.-Y.

2017-12-01

There are various types of foundation structure for offshore wind power, engineers may assess the condition of ocean at wind farm, and arrange the transportation, installation of each structure members, furthermore, considering the ability of manufacture steel structure as well, then make an optimum design. To design jacket offshore structure, unlike onshore cases, offshore structure also need to estimate the wave excitation effect. The aim of this paper is to study the difference of natural frequency between different kinds of structural stiffness and discuss the effect of different setting of boundary condition during analysis, besides, compare this value with the natural frequency of sea wave, in order to avoid the resonance effect. In this paper, the finite element analysis software ABAQUS is used to model and analyze the natural vibration behavior of the jacket structure.

Bridge Structure, Foundation and Approach Embankment Performance for the October-November 2002 Earthquake Sequence on the Denali Fault, Alaska

NASA Astrophysics Data System (ADS)

Vinson, T. S.; Hulsey, L.; Ma, J.; Connor, B.; Brooks, T. E.

2002-12-01

More than two dozen major bridges were subjected to severe ground motions during the October-November 2002 Earthquake Sequence on the Denali Fault, Alaska. The bridges represented a number of conventional designs constructed over the past three to four decades. The objective of the field investigation presented herein was to determine the extent of the damage, if any, to the bridge structures, foundations and approach embankments. This was accomplished by direct inspection of the bridges by the authors (or employees of their organizations) along the Richardson, Alaska, Parks, and Denali Highways, the Tok Cutoff, and the railroad bridges for the railroad alignment between Trapper Creek and Fairbanks. More specifically, the members of the investigation team (represented by the authors) conducted more than three days of field inspections of bridges within the zone of severe ground shaking during the M6.7 and M7.9 Denali fault events. The primary conclusion noted was that while a substantial number of bridges were subjected to intense shaking they all performed very well and were not damaged to the extent that remedial repairs to the bridge structure were necessary. There were occurrences of lateral spreading/liquefaction related damage to the approach embankments and slight separation of the approach embankment from the abutment foundation systems. Overall, considering the severity of ground shaking, much greater damage to the bridge structures, foundations and approach embankments would be predicted. Had the earthquakes occurred during winter when the ground was frozen and the ductility of the structures was substantially reduced events comparable to the October-November 2002 Earthquake Sequence on the Denali Fault, Alaska could have resulted in significant damage to bridges. This reconnaissance was supported by the National Science Foundation, Alaska Dept. of Transportation and Public Facilities, and the Alaska Railroad Corporation.

Controlling heat transport and flow structures in thermal turbulence using ratchet surfaces

NASA Astrophysics Data System (ADS)

Sun, Chao; Jiang, Hechuan; Zhu, Xiaojue; Mathai, Varghese; Verzicco, Roberto; Lohse, Detlef

2017-11-01

In this combined experimental and numerical study on thermally driven turbulence in a rectangular cell, the global heat transport and the coherent flow structures are controlled with an asymmetric ratchet-like roughness on the top and bottom plates. We show that, by means of symmetry breaking due to the presence of the ratchet structures on the conducting plates, the orientation of the Large Scale Circulation Roll (LSCR) can be locked to a preferred direction even when the cell is perfectly leveled out. By introducing a small tilt to the system, we show that the LSCR orientation can be tuned and controlled. The two different orientations of LSCR give two quite different heat transport efficiencies, indicating that heat transport is sensitive to the LSCR direction over the asymmetric roughness structure. Through analysis of the dynamics of thermal plume emissions and the orientation of the LSCR over the asymmetric structure, we provide a physical explanation for these findings. This work is financially supported by the Natural Science Foundation of China under Grant No. 11672156, the Dutch Foundation for Fundamental Research on Matter (FOM), the Dutch Technology Foundation (STW) and a VIDI Grant.

Field Demonstration of Real-Time Wind Turbine Foundation Strain Monitoring.

PubMed

Rubert, Tim; Perry, Marcus; Fusiek, Grzegorz; McAlorum, Jack; Niewczas, Pawel; Brotherston, Amanda; McCallum, David

2017-12-31

Onshore wind turbine foundations are generally over-engineered as their internal stress states are challenging to directly monitor during operation. While there are industry drivers to shift towards more economical foundation designs, making this transition safely will require new monitoring techniques, so that the uncertainties around structural health can be reduced. This paper presents the initial results of a real-time strain monitoring campaign for an operating wind turbine foundation. Selected reinforcement bars were instrumented with metal packaged optical fibre strain sensors prior to concrete casting. In this paper, we outline the sensors' design, characterisation and installation, and present 67 days of operational data. During this time, measured foundation strains did not exceed 95 μ ϵ , and showed a strong correlation with both measured tower displacements and the results of a foundation finite element model. The work demonstrates that real-time foundation monitoring is not only achievable, but that it has the potential to help operators and policymakers quantify the conservatism of their existing design codes.

Wireless Concrete Strength Monitoring of Wind Turbine Foundations.

PubMed

Perry, Marcus; Fusiek, Grzegorz; Niewczas, Pawel; Rubert, Tim; McAlorum, Jack

2017-12-16

Wind turbine foundations are typically cast in place, leaving the concrete to mature under environmental conditions that vary in time and space. As a result, there is uncertainty around the concrete's initial performance, and this can encourage both costly over-design and inaccurate prognoses of structural health. Here, we demonstrate the field application of a dense, wireless thermocouple network to monitor the strength development of an onshore, reinforced-concrete wind turbine foundation. Up-to-date methods in fly ash concrete strength and maturity modelling are used to estimate the distribution and evolution of foundation strength over 29 days of curing. Strength estimates are verified by core samples, extracted from the foundation base. In addition, an artificial neural network, trained using temperature data, is exploited to demonstrate that distributed concrete strengths can be estimated for foundations using only sparse thermocouple data. Our techniques provide a practical alternative to computational models, and could assist site operators in making more informed decisions about foundation design, construction, operation and maintenance.

Field Demonstration of Real-Time Wind Turbine Foundation Strain Monitoring

PubMed Central

Rubert, Tim; Niewczas, Pawel; Brotherston, Amanda; McCallum, David

2017-01-01

Onshore wind turbine foundations are generally over-engineered as their internal stress states are challenging to directly monitor during operation. While there are industry drivers to shift towards more economical foundation designs, making this transition safely will require new monitoring techniques, so that the uncertainties around structural health can be reduced. This paper presents the initial results of a real-time strain monitoring campaign for an operating wind turbine foundation. Selected reinforcement bars were instrumented with metal packaged optical fibre strain sensors prior to concrete casting. In this paper, we outline the sensors’ design, characterisation and installation, and present 67 days of operational data. During this time, measured foundation strains did not exceed 95 μϵ, and showed a strong correlation with both measured tower displacements and the results of a foundation finite element model. The work demonstrates that real-time foundation monitoring is not only achievable, but that it has the potential to help operators and policymakers quantify the conservatism of their existing design codes. PMID:29301232

Wireless Concrete Strength Monitoring of Wind Turbine Foundations

PubMed Central

Niewczas, Pawel; Rubert, Tim

2017-01-01

Wind turbine foundations are typically cast in place, leaving the concrete to mature under environmental conditions that vary in time and space. As a result, there is uncertainty around the concrete’s initial performance, and this can encourage both costly over-design and inaccurate prognoses of structural health. Here, we demonstrate the field application of a dense, wireless thermocouple network to monitor the strength development of an onshore, reinforced-concrete wind turbine foundation. Up-to-date methods in fly ash concrete strength and maturity modelling are used to estimate the distribution and evolution of foundation strength over 29 days of curing. Strength estimates are verified by core samples, extracted from the foundation base. In addition, an artificial neural network, trained using temperature data, is exploited to demonstrate that distributed concrete strengths can be estimated for foundations using only sparse thermocouple data. Our techniques provide a practical alternative to computational models, and could assist site operators in making more informed decisions about foundation design, construction, operation and maintenance. PMID:29258176

Study of technology of pile foundation construction of no.5 main pier of Shoujiang bridge in Wenchuan County

NASA Astrophysics Data System (ADS)

Huang, Xianbin; Liu, Chenyang; Chen, Chunyang; Wangren, Yahong; Xu, Jialin; Xian, Jin

2018-03-01

The group of pile foundation of no.5 pier in Shoujiang Bridge needs to overcome the big load of large span continuous steel structure. The length of single pile foundation is 77m and the diameter of single pile foundation is 250cm. It not only faces the flood in the upstream of Shoujiang river, the construction obstacles during summer rain period, but also the reservoir clearance activity of Zipingpu reservoir and the high water level in winter and other water level fluctuation that have huge impact on platform of pile foundation construction. This article introduces the preparation in aspect of personnel, material, equipment and so on of pile foundation construction, and also conduct intensive research on leveling the field, assaying pile location, the embedment of the steel casing, installing the drill, mixing mud, drilling, final hole inspection and clearance, steel cage construction, perfusing concrete under water.

78 FR 11903 - Proposal Review Panel for Materials Research; Notice of Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-20

... NATIONAL SCIENCE FOUNDATION Proposal Review Panel for Materials Research; Notice of Meeting In... Foundation announces the following meeting: Name: Site Visit review of the Materials Research Science and... Structures Materials Research Science and Engineering Center, by NSF Division of Materials Research (DMR...

Study of displacements of a bridge abutment using FEM

NASA Astrophysics Data System (ADS)

Wymysłowski, Michał; Kurałowicz, Zygmunt

2016-06-01

Steel sheet piles are often used to support excavations for bridge foundations. When they are left in place in the permanent works, they have the potential to increase foundation bearing capacity and reduce displacements; but their presence is not usually taken into account in foundation design. In this article, the results of finite element analysis of a typical abutment foundation, with and without cover of sheet piles, are presented to demonstrate these effects. The structure described is located over the Więceminka river in the town of Kołobrzeg, Poland. It is a single-span road bridge with reinforced concrete slab.

Foundational Approaches in Science Teaching (FAST)--A Structured "Inquiry" Oriented Junior Science Curriculum

ERIC Educational Resources Information Center

Dekkers, John; Rouse, Fae

1977-01-01

Provides a detailed description of the three-year Foundational Approaches in Science Education curriculum developed at the University of Hawaii. The program utilizes a spiral approach with topics in ecology, physical science and relational study. Sample units and implementation suggestions are provided. (CP)

Undergraduate Education in Science: A Rationale for Program Structure.

ERIC Educational Resources Information Center

National Science Foundation, Washington, DC.

This publication encompasses the central core of the National Science Foundation's (NSF) explicit science education activities at the undergraduate level of the Nation's education enterprise. It is an outline of the character of the Foundation's educational constituency. A table is presented showing the Carnegie Commission's Classification Scheme…

Effect of thermo-mechanical process on structure and high temperature shape memory properties of Ti-15Ta-15Zr alloy

NASA Astrophysics Data System (ADS)

Zheng, Xiao-Hang; Sui, Jie-He; Yang, Zhe-Yi; Zhi, Guo-Zhang; Cai, Wei

2017-05-01

Not Available Project support by the National Natural Science Foundation of China (Grant No. 51501049), China Postdoctoral Science Foundation (Grant No. 2015M571405), and the Fundamental Research Funds for the Central Universities, China (Grant No. HIT.NSRIF.20163).

National Science Foundation - Annual Report 1985. Thirty-Fifth Annual Report for Fiscal Year 1985.

ERIC Educational Resources Information Center

National Science Foundation, Washington, DC.

The 35th Annual Report of the National Science Foundation (NSF) describes recent achievements of NSF sponsored research in viral structure, semiconductors, genetic engineering, Mayan culture, astronomy, physiology, paleontology, robotics, physics, material science and pollution. Major 1985 initiatives included: (1) establishing six university…

Alternatives in Educational Expenditure Policy for the State of Illinois.

ERIC Educational Resources Information Center

Hickrod, G. Alan; Hubbard, Ben C.

This paper (1) provides background on types of State aid to education and describes how they work, (2) discusses the existing expenditure structure in Illinois, (3) describes and analyzes the fixed foundation (Strayer-Haig), variable foundation, percentage equalization, and resource equalizer formulae used for equalization aid in the United…

Structural biology computing: Lessons for the biomedical research sciences.

PubMed

Morin, Andrew; Sliz, Piotr

2013-11-01

The field of structural biology, whose aim is to elucidate the molecular and atomic structures of biological macromolecules, has long been at the forefront of biomedical sciences in adopting and developing computational research methods. Operating at the intersection between biophysics, biochemistry, and molecular biology, structural biology's growth into a foundational framework on which many concepts and findings of molecular biology are interpreted1 has depended largely on parallel advancements in computational tools and techniques. Without these computing advances, modern structural biology would likely have remained an exclusive pursuit practiced by few, and not become the widely practiced, foundational field it is today. As other areas of biomedical research increasingly embrace research computing techniques, the successes, failures and lessons of structural biology computing can serve as a useful guide to progress in other biomedically related research fields. Copyright © 2013 Wiley Periodicals, Inc.

The design of low cost structures for extensive ground arrays

NASA Technical Reports Server (NTRS)

Franklin, H. A.; Leonard, R. S.

1980-01-01

The development of conceptual designs of solar array support structures and their foundations including considerations of the use of concrete, steel, aluminum, or timber are reported. Some cost trends were examined by varying selected parameters to determine optimum configurations. Detailed civil/structural design criteria were developed. Using these criteria, eight detailed designs for support structures and foundations were developed and cost estimates were made. As a result of the study wind was identified as the major loading experienced by these low height structures, whose arrays are likely to extend over large tracts of land. Proper wind load estimating is considered essential to developing realistic structural designs and achieving minimum cost support structures. Wind tunnel testing of a conceptual array field was undertaken and some of the resulting wind design criteria are presented. The SPS rectenna system designs may be less sensitive to wind load estimates, but consistent design criteria remain important.

Characterization of Interface State Density of Ni/p-GaN Structures by Capacitance/Conductance-Voltage-Frequency Measurements

NASA Astrophysics Data System (ADS)

Zhu, Zhi-Fu; Zhang, He-Qiu; Liang, Hong-Wei; Peng, Xin-Cun; Zou, Ji-Jun; Tang, Bin; Du, Guo-Tong

2017-08-01

Not Available Supported by the Natural Science Foundation of Jiangxi Province under Grant No 20133ACB20005, the Key Program of National Natural Science Foundation of China under Grant No 41330318, the Key Program of Science and Technology Research of Ministry of Education under Grant No NRE1515, the Foundation of Training Academic and Technical Leaders for Main Majors of Jiangxi Province under Grant No 20142BCB22006, the Research Foundation of Education Bureau of Jiangxi Province under Grant No GJJ14501, and the Engineering Research Center of Nuclear Technology Application (East China Institute of Technology) Ministry of Education under Grant No HJSJYB2016-1.

Band Structure and Optical Gain of InGaAs/GaAsBi Type-II Quantum Wells Modeled by the k · p Model

NASA Astrophysics Data System (ADS)

Wang, Chang; Pan, Wenwu; Kolokolov, Konstantin; Wang, Shumin

2018-05-01

Not Available Supported by the National Basic Research Program of China under Grant No 2014CB643902, the Key Program of Natural Science Foundation of China under Grant No 61334004, the National Natural Science Foundation of China under Grant No 61404152, and the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No XDA5-1, the Foundation of National Laboratory for Infrared Physics, the Key Research Program of the Chinese Academy of Sciences under Grant No KGZD-EW-804, and the Creative Research Group Project of Natural Science Foundation of China under Grant No 61321492.

Numerical Modelling of Connections Between Stones in Foundations of Historical Buildings

NASA Astrophysics Data System (ADS)

Przewlocki, Jaroslaw; Zielinska, Monika; Grebowski, Karol

2017-12-01

The aim of this paper is to analyse the behaviour of old building foundations composed of stones (the main load-bearing elements) and mortar, based on numerical analysis. Some basic aspects of historical foundations are briefly discussed, with an emphasis on their development, techniques, and material. The behaviour of a foundation subjected to the loads transmitted from the upper parts of the structure is described using the finite element method (FEM). The main problems in analysing the foundations of historical buildings are determining the characteristics of the materials and the degree of degradation of the mortar, which is the weakest part of the foundation. Mortar is graded using the damaged-plastic model. In this model, exceeding the bearing capacity occurs due to the degradation of materials. The damaged-plastic model is the most accurate model describing the work and properties of mortar because it shows exactly what happens with this material throughout its total load history. For a uniformly loaded fragment of the foundation, both stresses and strains were analysed. The results of the analysis presented in this paper contribute to further research in the field of understanding both behaviour and modelling in historical buildings’ foundations.

Calculation of the Strip Foundation on Solid Elastic Base, Taking into Account the Karst Collapse

NASA Astrophysics Data System (ADS)

Sharapov, R.; Lodigina, N.

2017-07-01

Karst processes greatly complicate the construction and operation of buildings and structures. Due to the karstic deformations at different times there have been several major accidents, which analysis showed that in all cases the fundamental errors committed at different stages of building development: site selection, engineering survey, design, construction or operation of the facilities. Theory analysis of beams on elastic foundation is essential in building practice. Specialist engineering facilities often have to resort to multiple designing in finding efficient forms of construction of these facilities. In work the calculation of stresses in cross-sections of the strip foundation evenly distributed load in the event of karst. A comparison of extreme stress in the event of karst and without accounting for the strip foundation as a beam on an elastic foundation.

Quantitative deformation measurements and analysis of the ferrite-austenite banded structure in a 2205 duplex stainless steel at 250 °C

NASA Astrophysics Data System (ADS)

Liu, Ji-Hua

2018-03-01

Not Available Project supported by the National Natural Science Foundation of China (Grant Nos. 11472187 and 11602166), the National Basic Research Program of China (Grant No. 2014CB046805), and the Natural Science Foundation of Tianjin, China (Grant No. 16JCYBJC40500).

The Development of the Foundations of Modern Pedagogy: Paradigmal and Methodological Aspects of Research

ERIC Educational Resources Information Center

Dmitrenko, ?amara ?.; Lavryk, Tatjana V.; Yaresko, Ekaterina V.

2015-01-01

Changes in the various fields of knowledge influenced the pedagogical science. The article explains the structure of the foundations of modern pedagogy through paradigmal and methodological aspects. Bases of modern pedagogy include complex of paradigms, object and subject of science, general and specific principles, methods and technologies.…

Foundation for Individual Rights in Education Annual Report, 2010

ERIC Educational Resources Information Center

Foundation for Individual Rights in Education (NJ1), 2010

2010-01-01

This paper presents the annual report of the Foundation for Individual Rights in Education (FIRE) for 2010. FIRE's approach in 2010 was centered on altering the incentive structure for universities by using both "carrots" and "sticks" to produce positive reforms and long-term results. These efforts gained significant force in September, when FIRE…

A Wiki-Based Group Project in an Inorganic Chemistry Foundation Course

ERIC Educational Resources Information Center

Kristian, Kathleen E.

2015-01-01

A semester-long group project that utilizes wiki sites to enhance collaboration was developed for a foundation course in inorganic chemistry. Through structured assignments, student groups use metal-based or metal-combating therapeutic agents as a model for applying and understanding course concepts; they also gain proficiency with scientific- and…

The Effects of Explicitly Teaching Story Structure to Primary Grade Children

ERIC Educational Resources Information Center

Stevens, Robert J.; Van Meter, Peggy; Warcholak, Nicholas D.

2010-01-01

The importance of emergent literacy skills as a foundation for proficient reading has led to the development of interventions to teach these skills. These interventions are particularly important for children from disadvantaged homes because they often lack the home literacy experiences necessary for building foundational literacy skills prior to…

Structural deformation of nitro group of nitromethane molecule in liquid phase in an intense femtosecond laser field

NASA Astrophysics Data System (ADS)

Wang, Chang; Wu, Hong-lin; Song, Yun-fei; Yang, Yan-qiang

2017-08-01

Not Available Project supported by the National Natural Science Foundation of China (Grant Nos. 21673211 and 21203047), the Foundation of Heilongjiang Bayi Agricultural University, China (Grant No. XZR2014-16), and the Science Challenging Program of China (Grant No. JCKY2016212A501).

Practitioners' Recommendations for Foundational Educational Supports for Elementary-Age Learners with Autism Spectrum Disorders

ERIC Educational Resources Information Center

Long, Jennie L.; Simpson, Richard L.

2017-01-01

Professional literature related to Autism Spectrum Disorder (ASD) has increasingly focused on identifying interventions and strategies most likely to lead to successful outcomes. However, there is a paucity of research documenting the basic foundational structure and supports that are needed to promote successful classroom experiences and…

Sources of Individual Differences in Emerging Competence with Numeration Understanding versus Multidigit Calculation Skill

ERIC Educational Resources Information Center

Fuchs, Lynn S.; Geary, David C.; Fuchs, Douglas; Compton, Donald L.; Hamlett, Carol L.

2014-01-01

This study investigated contributions of general cognitive abilities and foundational mathematical competencies to numeration understanding (i.e., base-10 structure) versus multidigit calculation skill. Children (n = 394, M = 6.5 years) were assessed on general cognitive abilities and foundational numerical competencies at start of 1st grade; on…

Cancer Prevention Fellowship Program (CPFP) | Division of Cancer Prevention

Cancer.gov

The Cancer Prevention Fellowship provides a strong foundation for scientists and clinicians to train in the field of cancer prevention and control. This structured, multidisciplinary program offers early career scientists from different health disciplines a variety of postdoctoral training opportunities . | Training to form a strong foundation in cancer prevention and control

Improvement of sensitivity of graphene photodetector by creating bandgap structure

NASA Astrophysics Data System (ADS)

Zhang, Ni-Zhen; He, Meng-Ke; Yu, Peng; Zhou, Da-Hua

2017-10-01

Not Available Project supported by the National Natural Science Foundation of China (Grant No. 51271210), the Chongqing Municipal Research Program of Basic Research and Frontier Technology, China (Grant No. cstc2015jcyjBX0039), and the Foundation for the Creative Research Groups of Higher Education of Chongqing Municipality, China (Grant No. CXTDX201601016).

Numerical Analyses of Subsoil-structure Interaction in Original Non-commercial Software based on FEM

NASA Astrophysics Data System (ADS)

Cajka, R.; Vaskova, J.; Vasek, J.

2018-04-01

For decades attention has been paid to interaction of foundation structures and subsoil and development of interaction models. Given that analytical solutions of subsoil-structure interaction could be deduced only for some simple shapes of load, analytical solutions are increasingly being replaced by numerical solutions (eg. FEM – Finite element method). Numerical analyses provides greater possibilities for taking into account the real factors involved in the subsoil-structure interaction and was also used in this article. This makes it possible to design the foundation structures more efficiently and still reliably and securely. Currently there are several software that, can deal with the interaction of foundations and subsoil. It has been demonstrated that non-commercial software called MKPINTER (created by Cajka) provides appropriately results close to actual measured values. In MKPINTER software stress-strain analysis of elastic half-space by means of Gauss numerical integration and Jacobean of transformation is done. Input data for numerical analysis were observed by experimental loading test of concrete slab. The loading was performed using unique experimental equipment which was constructed in the area Faculty of Civil Engineering, VŠB-TU Ostrava. The purpose of this paper is to compare resulting deformation of the slab with values observed during experimental loading test.

Thermodynamic and structural properties of hcp bulk and nano-precipitated Ag-Al.

NASA Astrophysics Data System (ADS)

Zarkevich, Nikolai; Johnson, Duane; Smirnov, Andrei

2002-03-01

We study the short- and long- range chemical ordering in hcp bulk Ag_2Al using the Monte Carlo method based on a Hamiltonian constructed via structural formation energies from ab initio electronic-structure calculations. We find that the ground-state structure and thermodynamic properties of bulk Ag_2Al is that determined from the X-ray experimental data. We also address the influence of the interface, coherency strain, and off-stoichiometric disorder on the structure of metastable γ' nano-precipitates in fcc Al matrix. We show that γ' precipitates are off-stoichiometric and provide a new Al-rich structure that reproduces the observed TEM image. We acknowledge our support in part by an ALCOA Foundation Grant, the U.S. Department of Energy through the Frederick Seitz Materials Research Laboratory at UIUC under grant DEFG02-91ER45439, and the UIUC Materials Computation Center under National Science Foundation grant DMR-9976550.

Development of pile foundation bias factors using observed behavior of platforms during Hurricane Andrew

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

Aggarwal, R.K.; Litton, R.W.; Cornell, C.A.

1996-12-31

The performance of more than 3,000 offshore platforms in the Gulf of Mexico was observed during the passage of Hurricane Andrew in August 1992. This event provided an opportunity to test the procedures used for platform analysis and design. A global bias was inferred for overall platform capacity and loads in the Andrew Joint Industry Project (JIP) Phase 1. It was predicted that the pile foundations of several platforms should have failed, but did not. These results indicated that the biases specific to foundation failure modes may be higher than those of jacket failure modes. The biases in predictions ofmore » foundation failure modes were therefore investigated further in this study. The work included capacity analysis and calibration of predictions with the observed behavior for 3 jacket platforms and 3 caissons using Bayesian updating. Bias factors for two foundation failure modes, lateral shear and overturning, were determined for each structure. Foundation capacity estimates using conventional methods were found to be conservatively biased overall.« less

Disk Evolution: Testing The Foundations

NASA Astrophysics Data System (ADS)

Armitage, Phil

2016-07-01

Models for planet formation and observable large-scale structure in protoplanetary disks are built on a foundation of gas-phase physics. In the simplest telling, it is assumed that the disk evolves due to turbulence, and that photoevaporation is the dominant driver of mass loss. How secure is this foundation to our understanding? I will review recent results from magnetohydrodynamic simulations of protoplanetary disks, which suggest a modified picture in which MHD winds and fossil magnetic flux play a critical role. I will discuss what these theoretical results may imply for observations of disks.

Creating aging-enriched social work education:a process of curricular and organizational change.

PubMed

Hooyman, Nancy; St Peter, Suzanne

2006-01-01

The CSWE Geriatric Enrichment in Social Work Education Project, funded by the John A. Hartford foundation, aimed to change curricula and organizational structure in 67 GeroRich projects so that all students would graduate with foundation knowledge and skills to work effectively with older adults and their families. The emphasis was on change processes to infuse and sustain gerontological competencies and curricular resources in foundation courses. This article presents lessons learned and strategies for engaging faculty, practitioners and students in the curriculum and organizational change process.

18 CFR 12.35 - Specific inspection requirements.

Code of Federal Regulations, 2013 CFR

2013-04-01

...) Seismicity; (ix) Internal stress and hydrostatic pressures in project structures or their foundations or... structures; (iii) The structural adequacy and stability of structures under all credible loading conditions... project works to withstand the loading or overtopping which may occur from a flood up to the probable...

18 CFR 12.35 - Specific inspection requirements.

Code of Federal Regulations, 2012 CFR

2012-04-01

...) Seismicity; (ix) Internal stress and hydrostatic pressures in project structures or their foundations or... structures; (iii) The structural adequacy and stability of structures under all credible loading conditions... project works to withstand the loading or overtopping which may occur from a flood up to the probable...

Pseudo-spectral control of a novel oscillating surge wave energy converter in regular waves for power optimization including load reduction

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

Tom, Nathan M.; Yu, Yi -Hsiang; Wright, Alan D.

The aim of this study is to describe a procedure to maximize the power-to-load ratio of a novel wave energy converter (WEC) that combines an oscillating surge wave energy converter with variable structural components. The control of the power-take-off torque will be on a wave-to-wave timescale, whereas the structure will be controlled statically such that the geometry remains the same throughout the wave period. Linear hydrodynamic theory is used to calculate the upper and lower bounds for the time-averaged absorbed power and surge foundation loads while assuming that the WEC motion remains sinusoidal. Previous work using pseudo-spectral techniques to solvemore » the optimal control problem focused solely on maximizing absorbed energy. This work extends the optimal control problem to include a measure of the surge foundation force in the optimization. The objective function includes two competing terms that force the optimizer to maximize power capture while minimizing structural loads. A penalty weight was included with the surge foundation force that allows control of the optimizer performance based on whether emphasis should be placed on power absorption or load shedding. Results from pseudo-spectral optimal control indicate that a unit reduction in time-averaged power can be accompanied by a greater reduction in surge-foundation force.« less

Pseudo-spectral control of a novel oscillating surge wave energy converter in regular waves for power optimization including load reduction

DOE PAGES

Tom, Nathan M.; Yu, Yi -Hsiang; Wright, Alan D.; ...

2017-04-18

The aim of this study is to describe a procedure to maximize the power-to-load ratio of a novel wave energy converter (WEC) that combines an oscillating surge wave energy converter with variable structural components. The control of the power-take-off torque will be on a wave-to-wave timescale, whereas the structure will be controlled statically such that the geometry remains the same throughout the wave period. Linear hydrodynamic theory is used to calculate the upper and lower bounds for the time-averaged absorbed power and surge foundation loads while assuming that the WEC motion remains sinusoidal. Previous work using pseudo-spectral techniques to solvemore » the optimal control problem focused solely on maximizing absorbed energy. This work extends the optimal control problem to include a measure of the surge foundation force in the optimization. The objective function includes two competing terms that force the optimizer to maximize power capture while minimizing structural loads. A penalty weight was included with the surge foundation force that allows control of the optimizer performance based on whether emphasis should be placed on power absorption or load shedding. Results from pseudo-spectral optimal control indicate that a unit reduction in time-averaged power can be accompanied by a greater reduction in surge-foundation force.« less

Routines Are the Foundation of Classroom Management

ERIC Educational Resources Information Center

Lester, Robin Rawlings; Allanson, Patricia Bolton; Notar, Charles E.

2017-01-01

Classroom management is the key to learning. Routines are the foundation of classroom management. Students require structure in their lives. Routines provide that in all of their life from the time they awake until the time they go to bed. Routines in a school and in the classroom provide the environment for learning to take place. The paper is…

Beyond the Cognitive and the Virtue Approaches to Moral Education: Some Theoretical Foundations for an Integrated Account of Moral Education.

ERIC Educational Resources Information Center

Roh, Young-Ran

2000-01-01

Explores theoretical foundation for integrated approach to moral education; discusses rational choice and moral action within human reflective structure; investigates moral values required for integrative approach to moral education; discusses content of moral motivation, including role of emotion and reason. (Contains 15 references.) (PKP)

Persistence of termiticides in soil inside and outside miniature concrete foundations (Isoptera)

Treesearch

J.E. Mulrooney; T.L. Wagner; B.M. Kard; P.D. Gerard

2006-01-01

A cooperative study of termiticide longevity was initiated in 1990 between the Association of Structural Pest Control Regulatory Officials (ASPCRO), termiticide manufacturers, and the USDA Forest Service. By-the-label applications of seven termiticides were made to soil in trenches inside and outside miniature concrete foundations, and soil samples were collected at 1,...

Capacity of scour-damaged bridges, part 2 : Integrated Analysis Program (IAP) - a program for the analysis of lateral performance of pile-supported structures under scour conditions.

DOT National Transportation Integrated Search

2013-11-01

Scour is the removal of soils in the vicinity of bridge foundations, resulting in a reduced capacity of the foundations, which can increase the risk of bridge : failure. To minimize bridge failure, the Federal Highway Administration (FHWA) has establ...

Capacity of scour-damaged bridges, part 2 : Integrated Analysis Program (IAP) - a program for the analysis of lateral performance of pile-supported structures under scour conditions, [technical summary].

DOT National Transportation Integrated Search

2013-11-01

Scour is the removal of soils in the vicinity of bridge foundations, resulting in a reduced capacity of the foundations, which can increase the risk of bridge failure. To minimize bridge failure, the Federal Highway Administration (FHWA) has establis...

DSSTox ToxCast and Tox21 Chemical Inventories: Laying the Foundation for the U.S. EPA’s Computational Toxicology Research Programs

EPA Science Inventory

High quality chemical structure inventories provide the foundation of the U.S. EPA’s ToxCast and Tox21 projects, which are employing high-throughput technologies to screen thousands of chemicals in hundreds of biochemical and cell-based assays, probing a wide diversity of targets...

Primary Education as a Foundation for Qualitative Higher Education in Nigeria

ERIC Educational Resources Information Center

Etor, Comfort R.; Mbon, Usen F.; Ekanem, Ekpenyong E.

2013-01-01

Primary education is universally accepted as the foundation laying level of education in all nations of the world. It provides the mini-structural framework on which the quality of other levels of education is anchored. It is on this premise that this paper examines the pertinent issues that, if properly addressed would recapture and refocus…

Developing and Implementing a Reorganized Undergraduate Chemistry Curriculum Based on the Foundational Chemistry Topics of Structure, Reactivity, and Quantitation

ERIC Educational Resources Information Center

Schaller, Chris P.; Graham, Kate J.; Johnson, Brian J.; Fazal, M. A.; Jones, T. Nicholas; McIntee, Edward J.; Jakubowski, Henry V.

2014-01-01

The recent revision of undergraduate curricular guidelines from the American Chemical Society Committee on Professional Training (ACS-CPT) has generated interest in examining new ways of organizing course sequences both for chemistry majors and for nonmajors. A radical reconstruction of the foundation-level chemistry curriculum is presented in…

Tennessee School Finance Equity as Determined by Locally Funded Teaching Positions.

ERIC Educational Resources Information Center

Peevely, Gary L.; Ray, John R.

The Tennessee School Finance Equity Study was begun in 1978 to review the equity and adequacy of Tennessee's Public School Finance Program. Changes in the structure of the Tennessee Foundation Program (TFP) did achieve greater equity in the amount of funds local districts obtained from the foundation program even though the residence of the…

77 FR 63254 - Petition for Rulemaking Submitted by C-10 Research and Education Foundation, Inc.

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-16

... design, fabricate, test and erect structures, systems and components that are important to safety to... [Docket No. PRM-72-6; NRC-2008-0649] Petition for Rulemaking Submitted by C-10 Research and Education... Director for C-10 Research and Education Foundation Inc. (the petitioner). The petition was docketed by the...

Causes of Early-Age Thermal Cracking of Concrete Foundation Slabs and their Reinforcement to Control the Cracking

NASA Astrophysics Data System (ADS)

Bilčík, Juraj; Sonnenschein, Róbert; Gažovičová, Natália

2017-09-01

This paper focuses on the causes and consequences of early-age cracking of mass concrete foundation slabs due to restrained volume changes. Considering the importance of water leaking through cracks in terms of the serviceability, durability and environmental impact of watertight concrete structures, emphasis is placed on the effect of temperature loads on foundation slabs. Foundation slabs are usually restrained to some degree externally or internally. To evaluate the effect of external restraints on foundation slabs, friction and interaction models are introduced. The reinforcement of concrete cannot prevent the initiation of cracking, but when cracking has occurred, it may act to reduce the spacing and width of cracks. According to EN 1992-1-1, results of calculating crack widths with local variations included in National Annexes (NAs) vary considerably. A comparison of the required reinforcement areas according to different NAs is presented.

24 CFR 3282.12 - Excluded structures-modular homes.

Code of Federal Regulations, 2012 CFR

2012-04-01

... is designed only for erection or installation on a site-built permanent foundation; (i) A structure... structure, including but not limited to designs, drawings, and installation or erection instructions...) Capable of transferring all design loads imposed by or upon the structure into soil or bedrock without...

24 CFR 3282.12 - Excluded structures-modular homes.

Code of Federal Regulations, 2014 CFR

2014-04-01

... is designed only for erection or installation on a site-built permanent foundation; (i) A structure... structure, including but not limited to designs, drawings, and installation or erection instructions...) Capable of transferring all design loads imposed by or upon the structure into soil or bedrock without...

24 CFR 3282.12 - Excluded structures-modular homes.

Code of Federal Regulations, 2011 CFR

2011-04-01

... is designed only for erection or installation on a site-built permanent foundation; (i) A structure... structure, including but not limited to designs, drawings, and installation or erection instructions...) Capable of transferring all design loads imposed by or upon the structure into soil or bedrock without...

Design of foundations with sliding joint at areas affected with underground mining

NASA Astrophysics Data System (ADS)

Matečková, P.; Šmiřáková, M.; Maňásek, P.

2018-04-01

Underground mining always influences also landscape on surface. If there are buildings on the surface they are affected with terrain deformation which comprises terrain inclination, curvature, shift and horizontal deformation. Ostrava – Karvina region is specific with underground mining very close to densely inhabited area. About 25 years ago there were mines even in the city of Ostrava. Recommendations and rules for design of building structures at areas affected with underground mining have been therefore analysed in long term. This paper is focused on deformation action caused by terrain horizontal deformation - expansion or compression. Through the friction between foundation structure and subsoil in footing bottom the foundation structure has to resist significant normal forces. The idea of sliding joint which eliminates the friction and decreases internal forces comes from the last century. Sliding joint made of asphalt belt has been analysed at Faculty of Civil Engineering, VSB – Technical University of Ostrava in long term. The influence of vertical and horizontal load and the effect of temperature in temperature controlled room have been examined. Testing, design and utilization of sliding joint is presented.

A Precise Measurement of the Deuteron Elastic Structure Function A(Q 2)

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

Honegger, Andrian

1999-12-07

During summer 1997 experiment 394-018 measured the deuteron tensor polarization in D(e,e'more » $$vec\\{d}$$) scattering in Hall C at Jefferson Laboratory. In a momentum transfer range between 0.66 and 1.8 (GeV=c) 2, with slight changes in the experimental setup, the collaboration performed six precision measurements of the deuteron structure function A(Q 2) in elastic D(e,e'd) scattering . Scattered electrons and recoil deuterons were detected in coincidence in the High Momentum Spectrometer and the recoil polarimeter POLDER, respectively. At every kinematics H(e,e') data were taken to study systematic effects of the measurement. These new precise measurements resolve discrepancies between older data sets and put significant constraints on existing models of the deuteron electromagnetic structure. This work was supported by the Swiss National Science Foundation, the French Centre National de la Recherche Scientifique and the Commissariat 'a l'Energie Atomique, the U.S. Department of Energy and the National Science Foundation and the K.C. Wong Foundation.« less

Electrodynamics and Spacetime Geometry: Foundations

NASA Astrophysics Data System (ADS)

Cabral, Francisco; Lobo, Francisco S. N.

2017-02-01

We explore the intimate connection between spacetime geometry and electrodynamics. This link is already implicit in the constitutive relations between the field strengths and excitations, which are an essential part of the axiomatic structure of electromagnetism, clearly formulated via integration theory and differential forms. We review the foundations of classical electromagnetism based on charge and magnetic flux conservation, the Lorentz force and the constitutive relations. These relations introduce the conformal part of the metric and allow the study of electrodynamics for specific spacetime geometries. At the foundational level, we discuss the possibility of generalizing the vacuum constitutive relations, by relaxing the fixed conditions of homogeneity and isotropy, and by assuming that the symmetry properties of the electro-vacuum follow the spacetime isometries. The implications of this extension are briefly discussed in the context of the intimate connection between electromagnetism and the geometry (and causal structure) of spacetime.

Microbial specialists in below-grade foundation walls in Scandinavia.

PubMed

Nunez, M; Hammer, H

2014-10-01

Below-grade foundation walls are often exposed to excessive moisture by water infiltration, condensation, leakage, or lack of ventilation. Microbial growth in these structures depends largely on environmental factors, elapsed time, and the type of building materials and construction setup. The ecological preferences of Actinomycetes (Actinobacteria) and the molds Ascotricha chartarum, Myxotrichum chartarum (Ascomycota), Geomyces pannorum, and Monocillium sp. (Hyphomycetes) have been addressed based on analyses of 1764 samples collected in below-grade spaces during the period of 2001-2012. Our results show a significant correlation between these taxa and moist foundation walls as ecological niches. Substrate preference was the strongest predictor of taxa distribution within the wall, but the taxa's physiological needs, together with gradients of abiotic factors within the wall structure, also played a role. Our study describes for the first time how the wall environment affects microbial growth. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Foundation observation of teaching project--a developmental model of peer observation of teaching.

PubMed

Pattison, Andrew Timothy; Sherwood, Morgan; Lumsden, Colin James; Gale, Alison; Markides, Maria

2012-01-01

Peer observation of teaching is important in the development of educators. The foundation curriculum specifies teaching competencies that must be attained. We created a developmental model of peer observation of teaching to help our foundation doctors achieve these competencies and develop as educators. A process for peer observation was created based on key features of faculty development. The project consisted of a pre-observation meeting, the observation, a post-observation debrief, writing of reflective reports and group feedback sessions. The project was evaluated by completion of questionnaires and focus groups held with both foundation doctors and the students they taught to achieve triangulation. Twenty-one foundation doctors took part. All completed reflective reports on their teaching. Participants described the process as useful in their development as educators, citing specific examples of changes to their teaching practice. Medical students rated the sessions as better or much better quality as their usual teaching. The study highlights the benefits of the project to individual foundation doctors, undergraduate medical students and faculty. It acknowledges potential anxieties involved in having teaching observed. A structured programme of observation of teaching can deliver specific teaching competencies required by foundation doctors and provides additional benefits.

Construction of high-rise buildings in the Far East of Russia

NASA Astrophysics Data System (ADS)

Kudryavtsev, Sergey; Bugunov, Semen; Pogulyaeva, Evgeniya; Peters, Anastasiya; Kotenko, Zhanna; Grigor'yev, Danil

2018-03-01

The construction of high-rise buildings on plate foundation in geotechnical conditions of the Russian Far East is a complicated problem. In this respect foundation engineering becomes rather essential. In order to set a firm foundation it is necessary to take into account the pressure distribution at the structure base, in homogeneity of building deformation, which is due to collaborative geotechnical calculations complicated by a number of factors: actual over-placement of soils, the complex geometry of the building under construction, spatial work of the foundation ground with consideration for physical nonlinearity, the influence of the stiffness of the superstructure (reinforced concrete framing) upon the development of foundation deformations, foundation performance (the performance of the bed plate under the building and stairwells), the origination of internal forces in the superstructure with differential settlement. The solution of spatial problems regarding the mutual interaction between buildings and foundations with account of the factors mentioned above is fully achievable via the application of numerical modeling methodology. The work makes a review of the results of high-rise plate building numerical modeling in geotechnical conditions of the Russian Far East by way of the example of Khabarovsk city.

SPLICE: A program to assemble partial query solutions from three-dimensional database searches into novel ligands

NASA Astrophysics Data System (ADS)

Ho, Chris M. W.; Marshall, Garland R.

1993-12-01

SPLICE is a program that processes partial query solutions retrieved from 3D, structural databases to generate novel, aggregate ligands. It is designed to interface with the database searching program FOUNDATION, which retrieves fragments containing any combination of a user-specified minimum number of matching query elements. SPLICE eliminates aspects of structures that are physically incapable of binding within the active site. Then, a systematic rule-based procedure is performed upon the remaining fragments to ensure receptor complementarity. All modifications are automated and remain transparent to the user. Ligands are then assembled by linking components into composite structures through overlapping bonds. As a control experiment, FOUNDATION and SPLICE were used to reconstruct a know HIV-1 protease inhibitor after it had been fragmented, reoriented, and added to a sham database of fifty different small molecules. To illustrate the capabilities of this program, a 3D search query containing the pharmacophoric elements of an aspartic proteinase-inhibitor crystal complex was searched using FOUNDATION against a subset of the Cambridge Structural Database. One hundred thirty-one compounds were retrieved, each containing any combination of at least four query elements. Compounds were automatically screened and edited for receptor complementarity. Numerous combinations of fragments were discovered that could be linked to form novel structures, containing a greater number of pharmacophoric elements than any single retrieved fragment.

Comment on “Band gaps structure and semi-Dirac point of two-dimensional function photonic crystals” by Si-Qi Zhang et al.

NASA Astrophysics Data System (ADS)

Zhang, Hai-Feng

2018-01-01

Not Available Project supported by the Special Grade of the Financial Support from the China Postdoctoral Science Foundation (Grant No. 2016T90455), the China Postdoctoral Science Foundation (Grant No. 2015M581790), and the Chinese Jiangsu Planned Projects for Postdoctoral Research Funds, China (Grant No. 1501016A).

Electronic Structure and Visible-Light Absorption of Transition Metals (TM=Cr, Mn, Fe, Co) and Zn-Codoped SrTiO3: a First-Principles Study

NASA Astrophysics Data System (ADS)

Wang, Yue-Qin; Liu, Yin; Zhang, Ming-Xu; Min, Fan-Fei

2018-01-01

Not Available Supported by the National Natural Science Foundation of China under Grant No 51474011, the Postdoctoral Science Foundation of China under Grant No 2014M550337, and the Key Technologies R&D Program of Anhui Province of China under Grant No 1604a0802122.

Understanding the Complexity of the Lived Experiences of Foundation Degree Sport Lecturers within the Context of Further Education

ERIC Educational Resources Information Center

Aldous, David

2014-01-01

This paper provides an ethnographic account of the lived experiences of Further Education (FE) lecturers (N = 4) who are engaged in the transmission of pedagogic knowledge within a Foundation Degree. To further understand the experiences of the lecturers the paper draws upon Stones' quadripartite cycle of structuration. This conceptual and…

Special Medicare reimbursement and fraud and abuse considerations for management services organizations, medical foundations, and integrated delivery systems.

PubMed

DeMuro, P R; Owens, J F

1994-01-01

This chapter discusses certain Medicare reimbursement and fraud and abuse considerations for management services organizations (MSOs), medical foundations, and integrated delivery systems. It stresses the necessity of a business plan, the sources of capitalization that might be used in creating an integrated delivery system, and their effect on Medicare reimbursement. It also discusses related party principles and considerations and the Medicare "incident to" regulations. Furthermore, it discusses the application of certain Medicare safe harbor regulations on MSOs' structures and services, and those of medical foundations and integrated delivery systems.

Effects of topographic position and geology on shaking damage to residential wood-framed structures during the 2003 San Simeon earthquake, western San Luis obispo county, California

USGS Publications Warehouse

McCrink, T.P.; Wills, C.J.; Real, C.R.; Manson, M.W.

2010-01-01

A statistical evaluation of shaking damage to wood-framed houses caused by the 2003 M6.5 San Simeon earthquake indicates that both the rate and severity of damage, independent of structure type, are significantly greater on hilltops compared to hill slopes when underlain by Cretaceous or Tertiary sedimentary rocks. This increase in damage is interpreted to be the result of topographic amplification. An increase in the damage rate is found for all structures built on Plio-Pleistocene rocks independent of topographic position, and this is interpreted to be the result of amplified shaking caused by geologic site response. Damage rate and severity to houses built on Tertiary rocks suggest that amplification due to both topographic position and geologic site response may be occurring in these rocks, but effects from other topographic parameters cannot be ruled out. For all geologic and topographic conditions, houses with raised foundations are more frequently damaged than those with slab foundations. However, the severity of damage to houses on raised foundations is only significantly greater for those on hill slopes underlain by Tertiary rocks. Structures with some damage-resistant characteristics experienced greater damage severity on hilltops, suggesting a spectral response to topographic amplification. ?? 2010, Earthquake Engineering Research Institute.

Distributed Structure Searchable Toxicity

EPA Pesticide Factsheets

The Distributed Structure Searchable Toxicity (DSSTox) online resource provides high quality chemical structures and annotations in association with toxicity data. It helps to build a data foundation for improved structure-activity relationships and predictive toxicology. DSSTox publishes summarized chemical activity representations for structure-activity modeling and provides a structure browser. This tool also houses the chemical inventories for the ToxCast and Tox21 projects.

Kanye West versus Kris Allen: Teaching Rhetorical Structure via Music

ERIC Educational Resources Information Center

Kaylor, Brian T.

2012-01-01

One important aspect of analyzing a rhetorical text is through consideration of the text or artifact's structure, which is why rhetorical criticism textbooks often devote a chapter to issues of structure, form, or genre. Such an emphasis should not be surprising since understanding rhetorical structure remains a foundational concept for rhetorical…

Technical - Economic Research for Passive Buildings

NASA Astrophysics Data System (ADS)

Miniotaite, Ruta

2017-10-01

A newly constructed passive house must save 80 % of heat resources; otherwise it is not a passive house. The heating energy demand of a passive building is less than 15 kWh/m2 per year. However, a passive house is something more than just an energy-saving house. This concept involves sustainable, high-quality, valuable, healthy and durable construction. Features of a passive house: high insulation of envelope components, high-quality windows, good tightness of the building, regenerative ventilation system and elimination of thermal bridges. The Energy Performance of Buildings Directive (EPBD) 61 requires all new public buildings to become near-zero energy buildings by 2019 and will be extended to all new buildings by 2021. This concept involves sustainable, high-quality, valuable, healthy and durable construction. Foundation, walls and roofs are the most essential elements of a house. The type of foundation for a private house is selected considering many factors. The article examines technological and structural solutions for passive buildings foundation, walls and roofs. The technical-economic comparison of the main structures of a passive house revealed that it is cheaper to install an adequately designed concrete slab foundation than to build strip or pile foundation and the floor separately. Timber stud walls are the cheapest wall option for a passive house and 45-51% cheaper compared to other options. The comparison of roofs and ceilings showed that insulation of the ceiling is 25% more efficient than insulation of the roof. The comparison of the main envelope elements efficiency by multiple-criteria evaluation methods showed that it is economically feasible to install concrete slab on ground foundation, stud walls with sheet cladding and a pitched roof with insulated ceiling.

Elastocaloric Effect in PbTiO3 Thin Films with 180° Domain Structure: A Phase Field Study

NASA Astrophysics Data System (ADS)

Wang, Fang; Li, Bo; Ou, Yun; Liu, Long-Fei; Wang, Wei

2018-03-01

Not Available Supported by the National Natural Science Foundation of China under Grant Nos 11502078 and 11402222, the General Project of Hunan Provincial Department of Education under Grant No 15C0535, and the Start-up Foundation of High-talent Research Project of Hunan University of Science and Technology under Grant No E51517.

Developing Evidence for Structural Approaches to Build a Culture of Health: A Perspective from the Robert Wood Johnson Foundation

ERIC Educational Resources Information Center

Mockenhaupt, Robin; Woodrum, Amy

2015-01-01

We believe that reframing the conversation to creating a culture around health rather than focusing on discrete actions or activities will capture national consciousness and enable us to make new progress as a nation. Thus, in 2014, the Robert Wood Johnson Foundation (RWJF) announced a new vision to help build a "Culture of Health" to…

Foundations of the Unity of Science, Toward an International Encyclopedia of Unified Science, Volume 2, Numbers 1-9.

ERIC Educational Resources Information Center

Neurath, Otto; And Others

The monographs published from 1938 through 1970 under the general title of the International Encyclopedia of Unified Science are now published in two volumes (see also SE 012 543). The monographs included in this volume, and the philosophers who wrote them, are listed below. Foundations of the Social Sciences (Neurath); The Structure of Scientific…

Extending Ladders: Findings from the Annie E. Casey Foundation's Jobs Initiative.

ERIC Educational Resources Information Center

Fleischer, Wendy

In 1995, the Anne E. Casey Foundation launched the Jobs Initiative (JI) in six cities to change labor market prospects for low-income young people in order to help them get jobs that could move their families out of poverty. The JI attempts to change the way employers recruit and supervise workers and how work is structured; to prepare workers and…

The W. K. Kellogg Foundation Program at the University of Akron: If We Had to Do It Over--Hindsight and Foresight.

ERIC Educational Resources Information Center

DeShon, David S.

A team leadership program for academic administration was undertaken at the University of Akron under Kellogg Foundation Funding. A screened sample of 108 persons was admitted to training, which consisted of role analysis, education in the structure and function of the university and higher education in general, team building, analysis of…

Foundations for Success in the Teaching of O-Level Mathematics in Rural Day Secondary Schools in Masvingo District

ERIC Educational Resources Information Center

Mupa, Paul

2015-01-01

The growing failure rate in Mathematics at O-level is cause for concern and warrants an in-depth investigation. This study focused on factors that make the foundation of success in the teaching and learning of Mathematics. The study was qualitative and employed a case study design. Semi-structured interviews were used as data generation tool. The…

Design criteria for driven piles in permafrost

DOT National Transportation Integrated Search

1983-01-01

Past placment of structural foundation support piles in frozen soils generally has been performed using drilled and slurry backfill techniques. The early success of specially modified H-pile structural shapes driven into permafrost, and the promise o...

Performance of pile supported sign structures : final report.

DOT National Transportation Integrated Search

2015-01-01

Foundations for sign structures are subjected primarily to overturning loads, but published methods for designing driven pile groups only address groups subjected either to compression or uplift, not both simultaneously. A lateral load test of two fo...

Intelligent Propulsion System Foundation Technology: Summary of Research

NASA Technical Reports Server (NTRS)

Williams, James C.

2004-01-01

The purpose of this cooperative agreement was to develop a foundation of intelligent propulsion technologies for NASA and industry that will have an impact on safety, noise, emissions and cost. These intelligent engine technologies included sensors, electronics, communications, control logic, actuators, and smart materials and structures. Furthermore this cooperative agreement helped prepare future graduates to develop the revolutionary intelligent propulsion technologies that will be needed to ensure pre-eminence of the U.S. aerospace industry. The program consisted of three primary research areas (and associated work elements at Ohio universities): 1.0 Turbine Engine Prognostics, 2.0 Active Controls for Emissions and Noise Reduction, and 3.0 Active Structural Controls.

Membrane-lined foundations for liquid thermal storage

NASA Astrophysics Data System (ADS)

Bourne, R. C.

1981-06-01

The membrane lined storage (MLS) container which is a spinoff of vinyl-lined swimming pool and waterbed technologies was developed. The state of development of MLS was evaluated and concepts for MLS structural and heat transfer systems were improved. Preferred structural supports were identified and designed for 1500 gal MLS containers for basement, crawl space, and slab-on-grade foundation types. Techniques are developed to provide space heating via forced air through a finned storage jacket for the two preferred structural enclosure designs. Cost effectiveness of the direct air heating technique is evaluated. Alternate free convection domestic water preheaters and a preferred heat exchanger material is selected. Collector and space heat inlet/outlet designs, design concepts for auxiliary heat input to MLS from resistance electric, combustion, and heat pump sources are developed.

Enrollment Management: An Introduction to Concepts and Structures

ERIC Educational Resources Information Center

Bontrager, Bob

2004-01-01

In the increasingly complex world of managing enrollments, success or failure hinges on building a solid foundation of concepts, structures, and strategies. This first of a two-part series reviews the core concepts and structural considerations that underlie successful enrollment management organizations. The purpose of this article is to…

Diode-pumped laser performance of Tm:Sc2SiO5 crystal at 1971 nm

NASA Astrophysics Data System (ADS)

Liu, Bin; Zheng, Li-He; Wang, Qing-Guo; Liu, Jun-Fang; Su, Liang-Bi; Tang, Hui-Li; Liu, Jie; Fan, Xiu-Wei; Wu, Feng; Luo, Ping; Zhao, Heng-Yu; Shi, Jiao-Jiao; He, Nuo-Tian; Li, Na; Li, Qiu; Guo, Chao; Xu, Xiao-Dong; Wang, Zhan-Shan; Xu, Jun

2017-08-01

Not Available Project supported by the Shanghai Municipal Engineering Research Center for Sapphire Crystals, China (Grant No. 14DZ2252500), the Fund of Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences (Grant No. 2008DP17301), the Fundamental Research Funds for the Central Universities, the National Natural Science Foundation of China and the China Academy of Engineering Physics Joint Fund (Grant No. U1530152), the National Natural Science Foundation of China (Grant Nos. 61475177 and 61621001), the Shanghai Municipal Natural Science Foundation, China (Grant No. 13ZR1446100), and the MDE Key Laboratory of Advanced Micro-Structured Materials.

The family as the foundation of political rule in western philosophy: a comparative analysis of Aristotle's politics and Hegel's philosophy of right.

PubMed

Jarvis, Douglas E

2011-01-01

For both Aristotle and Hegel, the family is the foundation in which the universalized rule of law is validated according to the political structure of the 'Polis' or 'State' itself. This composite whole or structure of society (Ancient Polis/Modern State) is the political end of humanity for both philosophers, which in turn finds its primordial beginning in the family. For Aristotle, it is in the kingly rule of the household that the property-based distinction of citizenship is set for the rule of his ideal Polis. For Hegel, it is in the love affirmed through caring affection within the nuclear family that the dialectical framework for the freedom of civil society, and the rational unity of a congregational 'spirit' in the State, finds its foundation. For both thinkers, the family sets the base for a political theory that defines citizenship in a manner that transcends the particularities of kin bonds.

Procurement Opportunitites in: Afghanistan and the Central Asian States (CAS)

DTIC Science & Technology

2012-08-01

barriers) Furniture (office and household) Prefabricated Structures (CONEXs, containerized housing units, re-locatable buildings) Office Supplies... Concrete Foundation and Structure Road Support Activities Minor Building Renovation Water and Sewer Line and Related Construction Heavy and Civil

Completion of Embankment, Spillway and Outlet Works

DTIC Science & Technology

1990-08-01

Protection Against Slides and Rockfalls 42 5 PILE DRIVING AND SPECIAL FOUNDATIONS 42 6 TUNNELS, SHAFTS, AND UNDERGROUND STRUCTURES 42 7 FOUNDATION ANCHOR TEST...TW r tyVs.. l ti rs 80 .S0.90 R 4oeS . 14.0-..19.01 Noe 2ale 3" 0 34. lattafro14 600.0j 33.0’ S. 38.0-.39.01 631.0 for gi . x 0% WI APnbdcE

27. EXCAVATION OF EAST (FRONT) BASEMENT WELL AND DRAINAGE SYSTEM, ...

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

27. EXCAVATION OF EAST (FRONT) BASEMENT WELL AND DRAINAGE SYSTEM, WITH ARCHED ENTRY INTO BASEMENT UNDER FRONT ENTRY IN BACKGROUND, LOOKING NORTH (NOTE GALLETING IN BRICK FOUNDATION) BUT CLOSER RANGE SHOWING BRICK STRUCTURE WHICH CARRIED WATER FROM THE GUTTER DRAIN PIPE INTO THE BRICK DRAIN ALONG THE GROUND AND AWAY FROM THE FOUNDATION OF THE HOUSE - Belair, Tulip Grove Drive, Belair-at-Bowie, Bowie, Prince George's County, MD

5. View of middle DR 2 antenna with DR 1 ...

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

5. View of middle DR 2 antenna with DR 1 antenna in background. Photograph shows on left side at bottom foundation berm and along right side bottom stanchion concrete foundations at bottom structural steel assembly. - Clear Air Force Station, Ballistic Missile Early Warning System Site II, One mile west of mile marker 293.5 on Parks Highway, 5 miles southwest of Anderson, Anderson, Denali Borough, AK

Leadership, Decision Making, and the Judeo-Christian Ethic

DTIC Science & Technology

1993-06-04

Major General Buckingham writes, "The moral justification for 3 our profession is embedded in the Constitution. ൕ Superficially, the basis for the...foundational structure suggests the existence of an ancient foundation that continues influencing it. Buckingham notes, "Our Western value system of right...Nehemiah, Cyril Barber writes: Nehemiah is serving as a cupbearer in Susa, the principal palace and winter residence of the king (Arraxerxes, King of the

Infrasound Assessment of Infrastructure Report 6: Scour Detection and Riverine Health Assessment Using Infrasound

DTIC Science & Technology

2016-05-01

construed as an official Department of the Army position unless so designated by other authorized documents. DESTROY THIS REPORT WHEN NO LONGER NEEDED...20 Figure 14. Seismic and infrasound detection of a barge strike on the I-20 bridge pier during the...foundations meaning that no plans, either design or as-built, existed for the structure. Initially, bridges classified as having unknown foundations

Can X(5568) be a tetraquark state?

NASA Astrophysics Data System (ADS)

Wang, Wei; Zhu, Ruilin

2016-09-01

Very recently, the D0 collaboration has reported the observation of a narrow structure, X(5568), in the decay process using the 10.4fb-1 data of pp¯ collision at . This structure is of great interest since it is the first hadronic state with four different valence quark flavors, b, s, u, d. In this work, we investigate tetraquarks with four different quark flavors. Based on the diquark-antidiquark scheme, we study the spectroscopy of the tetraquarks with one heavy bottom/charm quark and three light quarks. We find that the lowest-lying S-wave state, a tetraquark with the flavor [su][b¯d¯] and the spin-parity JP = 0+, is about 150 MeV higher than the X(5568). Further detailed experimental and theoretical studies of the spectrum, production and decays of tetraquark states with four different flavors are vital to gain a better understanding of the nature and classification of hadron exotic states. Supported by National Natural Science Foundation of China (11575110), Natural Science Foundation of Shanghai (15DZ2272100, 15ZR1423100), China Postdoctoral Science Foundation, Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China (Y5KF111CJ1), and Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry

Foundation Year 2 doctors’ reasons for leaving UK medicine: an in-depth analysis of decision-making using semistructured interviews

PubMed Central

Smith, Samantha E; Tallentire, Victoria R; Pope, Lindsey M; Morrison, Jill

2018-01-01

Objectives To explore the reasons that doctors choose to leave UK medicine after their foundation year two posts. Setting All four regions of Scotland. Participants Foundation year two doctors (F2s) working throughout Scotland who were considering leaving UK medicine after foundation training were recruited on a volunteer basis. Maximum variation between participants was sought. Primary and secondary outcome measures Semistructured interviews were coded using template analysis. Six perspectives, described by Feldman and Ng, were used as the initial coding template. The codes were then configured to form a framework that explores the interplay of factors influencing Foundation Year 2 (F2) doctors’ decisions to leave UK medicine. Results Seventeen participants were interviewed. Six perspectives were explored. Structural influences (countrywide and worldwide issues) included visas, economic and political considerations, structure of healthcare systems and availability of junior doctor jobs worldwide. Organisational influences (the National Health Service (NHS) and other healthcare providers) included staffing and compensation policies, the working environment and the learning environment. Occupational influences (specific to being a junior doctor) comprised the junior doctor contract, role and workload, pursuit of career interests and the structure of training. Work group influences (relationships with colleagues) included support at work, task interdependence and use of locums. Personal life influences consisted of work-life balance, and support in resolving work-life conflict. The underlying theme of ‘taking a break’ recurred through multiple narratives. Conclusions F2s give reasons similar to those given by any professional considering a change in their job. However, working within the NHS as an F2 doctor brought specific challenges, such as a need to make a choice of specialty within the F2 year, exposure to workplace bullying and difficulties in raising concerns. Despite these challenges, most F2s did not view their decision to leave as a permanent job change, but as a temporary break from their current working lives. PMID:29500208

Moral foundations vignettes: a standardized stimulus database of scenarios based on moral foundations theory.

PubMed

Clifford, Scott; Iyengar, Vijeth; Cabeza, Roberto; Sinnott-Armstrong, Walter

2015-12-01

Research on the emotional, cognitive, and social determinants of moral judgment has surged in recent years. The development of moral foundations theory (MFT) has played an important role, demonstrating the breadth of morality. Moral psychology has responded by investigating how different domains of moral judgment are shaped by a variety of psychological factors. Yet, the discipline lacks a validated set of moral violations that span the moral domain, creating a barrier to investigating influences on judgment and how their neural bases might vary across the moral domain. In this paper, we aim to fill this gap by developing and validating a large set of moral foundations vignettes (MFVs). Each vignette depicts a behavior violating a particular moral foundation and not others. The vignettes are controlled on many dimensions including syntactic structure and complexity making them suitable for neuroimaging research. We demonstrate the validity of our vignettes by examining respondents' classifications of moral violations, conducting exploratory and confirmatory factor analysis, and demonstrating the correspondence between the extracted factors and existing measures of the moral foundations. We expect that the MFVs will be beneficial for a wide variety of behavioral and neuroimaging investigations of moral cognition.

Moral foundations vignettes: a standardized stimulus database of scenarios based on moral foundations theory

PubMed Central

Iyengar, Vijeth; Cabeza, Roberto; Sinnott-Armstrong, Walter

2016-01-01

Research on the emotional, cognitive, and social determinants of moral judgment has surged in recent years. The development of moral foundations theory (MFT) has played an important role, demonstrating the breadth of morality. Moral psychology has responded by investigating how different domains of moral judgment are shaped by a variety of psychological factors. Yet, the discipline lacks a validated set of moral violations that span the moral domain, creating a barrier to investigating influences on judgment and how their neural bases might vary across the moral domain. In this paper, we aim to fill this gap by developing and validating a large set of moral foundations vignettes (MFVs). Each vignette depicts a behavior violating a particular moral foundation and not others. The vignettes are controlled on many dimensions including syntactic structure and complexity making them suitable for neuroimaging research. We demonstrate the validity of our vignettes by examining respondents’ classifications of moral violations, conducting exploratory and confirmatory factor analysis, and demonstrating the correspondence between the extracted factors and existing measures of the moral foundations. We expect that the MFVs will be beneficial for a wide variety of behavioral and neuroimaging investigations of moral cognition. PMID:25582811

Role to Be Played by Independent Geotechnical Supervision in the Foundation for Bridge Construction

NASA Astrophysics Data System (ADS)

Sobala, Dariusz; Rybak, Jarosław

2017-10-01

Some remarks concerning the necessity of employing an independent and over all ethical geotechnical survey were presented in the paper. Starting from the design phase, through the whole construction process, the importance of geotechnical engineer is stated in legal acts. Numerous testing technologies serve for the calibration of geotechnical technologies and allow for confirming the quality and capacity of piles. Special emphasis was payed to the involvement of scientifical and research institutions which can not only serve services but also can postprocess and methodize collected data. Such databases enable for new codes, methods and recommendations. Selection of deep foundations for bridge-type structures is most often dependent on complex geotechnical conditions, concentrated loads and constraints for pier displacements. Besides the last ones, prior to more common introduction of the design-construct system, could be a convenient justification for design engineer, who imposed deep foundation because he did not want or was not able to estimate the effect of pier settlement on civil engineering structure. The paper provides some notes about the need to engage a geotechnical supervising service of high competency and ethical quality during engineering and construction stages of foundations for bridge-type structures where legal requirements are of special consideration. Successive stages of projects are reviewed and research methods used for current calibration of geotechnical technologies and verification of geotechnical work quality are analysed. Special attention is given to potential involvement of independent R&D institutions which, apart from rendering specific services, also collect and systemize the research results thus enabling, in the long term, to revise engineering standards, instructions and guidelines.

Connecting Protein Structure to Intermolecular Interactions: A Computer Modeling Laboratory

ERIC Educational Resources Information Center

Abualia, Mohammed; Schroeder, Lianne; Garcia, Megan; Daubenmire, Patrick L.; Wink, Donald J.; Clark, Ginevra A.

2016-01-01

An understanding of protein folding relies on a solid foundation of a number of critical chemical concepts, such as molecular structure, intra-/intermolecular interactions, and relating structure to function. Recent reports show that students struggle on all levels to achieve these understandings and use them in meaningful ways. Further, several…

Physical Models Have Gender-Specific Effects on Student Understanding of Protein Structure-Function Relationships

ERIC Educational Resources Information Center

Forbes-Lorman, Robin M.; Harris, Michelle A.; Chang, Wesley S.; Dent, Erik W.; Nordheim, Erik V.; Franzen, Margaret A.

2016-01-01

Understanding how basic structural units influence function is identified as a foundational/core concept for undergraduate biological and biochemical literacy. It is essential for students to understand this concept at all size scales, but it is often more difficult for students to understand structure-function relationships at the molecular…

Environmentally Friendly Solution to Ground Hazards in Design of Bridges in Earthquake Prone Areas Using Timber Piles

NASA Astrophysics Data System (ADS)

Sadeghi, H.

2015-12-01

Bridges are major elements of infrastructure in all societies. Their safety and continued serviceability guaranties the transportation and emergency access in urban and rural areas. However, these important structures are subject to earthquake induced damages in structure and foundations. The basic approach to the proper support of foundations are a) distribution of imposed loads to foundation in a way they can resist those loads without excessive settlement and failure; b) modification of foundation ground with various available methods; and c) combination of "a" and "b". The engineers has to face the task of designing the foundations meeting all safely and serviceability criteria but sometimes when there are numerous environmental and financial constrains, the use of some traditional methods become inevitable. This paper explains the application of timber piles to improve ground resistance to liquefaction and to secure the abutments of short to medium length bridges in an earthquake/liquefaction prone area in Bohol Island, Philippines. The limitations of using the common ground improvement methods (i.e., injection, dynamic compaction) because of either environmental or financial concerns along with the abundance of timber in the area made the engineers to use a network of timber piles behind the backwalls of the bridge abutments. The suggested timber pile network is simulated by numerical methods and its safety is examined. The results show that the compaction caused by driving of the piles and bearing capacity provided by timbers reduce the settlement and lateral movements due to service and earthquake induced loads.

Study on a new chaotic bitwise dynamical system and its FPGA implementation

NASA Astrophysics Data System (ADS)

Wang, Qian-Xue; Yu, Si-Min; Guyeux, C.; Bahi, J.; Fang, Xiao-Le

2015-06-01

In this paper, the structure of a new chaotic bitwise dynamical system (CBDS) is described. Compared to our previous research work, it uses various random bitwise operations instead of only one. The chaotic behavior of CBDS is mathematically proven according to the Devaney's definition, and its statistical properties are verified both for uniformity and by a comprehensive, reputed and stringent battery of tests called TestU01. Furthermore, a systematic methodology developing the parallel computations is proposed for FPGA platform-based realization of this CBDS. Experiments finally validate the proposed systematic methodology. Project supported by China Postdoctoral Science Foundation (Grant No. 2014M552175), the Scientific Research Foundation for the Returned Overseas Chinese Scholars, Chinese Education Ministry, the National Natural Science Foundation of China (Grant No. 61172023), and the Specialized Research Foundation of Doctoral Subjects of Chinese Education Ministry (Grant No. 20114420110003).

How to Select the most Relevant Roughness Parameters of a Surface: Methodology Research Strategy

NASA Astrophysics Data System (ADS)

Bobrovskij, I. N.

2018-01-01

In this paper, the foundations for new methodology creation which provides solving problem of surfaces structure new standards parameters huge amount conflicted with necessary actual floors quantity of surfaces structure parameters which is related to measurement complexity decreasing are considered. At the moment, there is no single assessment of the importance of a parameters. The approval of presented methodology for aerospace cluster components surfaces allows to create necessary foundation, to develop scientific estimation of surfaces texture parameters, to obtain material for investigators of chosen technological procedure. The methods necessary for further work, the creation of a fundamental reserve and development as a scientific direction for assessing the significance of microgeometry parameters are selected.

Human factors in operations design

NASA Technical Reports Server (NTRS)

Chafin, R. L.

1982-01-01

The manner in which organizations develop their organizational structure is considered, taking into account an example in which the environment changes for an older organization. In such cases, it would be preferable to have some theoretical foundation on which to base the restructuring of the organization to meet new environmental needs. A description is given of a theoretic foundation based on the principles of Differentiation/Integration and Procedural/Knowledge based operations. The organizational design principle of Differentiation and Integration has been presented by Lawrence and Lorsch (1969). The differentiation/integration processes are related to the organizational structures presented in studies concerning NASA Deep Space Network (DSN) operations. The principles presented provide valuable tools for analyzing operations organization.

Optical control of light propagation in photonic crystal based on electromagnetically induced transparency

NASA Astrophysics Data System (ADS)

Dan, Wang; Jin-Ze, Wu; Jun-Xiang, Zhang

2016-06-01

A kind of photonic crystal structure with modulation of the refractive index is investigated both experimentally and theoretically for exploiting electromagnetically induced transparency (EIT). The combination of EIT with periodically modulated refractive index medium gives rise to high efficiency reflection as well as forbidden transmission in a three-level atomic system coupled by standing wave. We show an accurate theoretical simulation via transfer-matrix theory, automatically accounting for multilayer reflections, thus fully demonstrate the existence of photonic crystal structure in atomic vapor. Project supported by the National Natural Science Foundation of China (Grant No. 11574188) and the Project for Excellent Research Team of the National Natural Science Foundation of China (Grant No. 61121064).

Environmental Assessment for Operations, Upgrades, and Consolidation at the Western Command Site, New Mexico

DTIC Science & Technology

2014-09-01

to house the newly formed 498th Nuclear Systems Wing. This facility will be a two-story, steel-framed structure with reinforced concrete foundation ...occurs at depths of 200 to 400 feet below ground surface . The perched aquifer is a result of infiltration of water from both man-made and natural origins...as a Sensitive Compartmented Information Facility with reinforced concrete foundation , floors, and reinforced masonry walls. The construction

Ground State Structures of Boron-Rich Rhodium Boride: An Ab Initio Study

NASA Astrophysics Data System (ADS)

Chu, Bin-Hua; Zhao, Yuan; Yan, Jin-Liang; Li, Da

2018-01-01

Not Available Supported by the Natural Science Foundation of Shandong Province under Grant Nos ZR2016AP02, ZR2016FM38 and ZR2016EMP01, the Innovation Project of Ludong University under Grant No LB2016013, the Open Project of State Key Laboratory of Superhard Materials of Jilin University under Grant No 201605, and the National Natural Science Foundation of China under Grant Nos 11704170 and 61705097.

Vibration and bending analyses of magneto-electro-thermo-elastic sandwich microplates resting on viscoelastic foundation

NASA Astrophysics Data System (ADS)

Arefi, Mohammad; Zenkour, Ashraf M.

2017-08-01

Magneto-electro-thermo-mechanical bending and free vibration analysis of a sandwich microplate using strain gradient theory is expressed in this paper. The sandwich plate is made of a core and two integrated piezo-magnetic face sheets. The structure is subjected to electric and magnetic potentials, thermal loadings, and resting on Pasternak's foundation. Electro-magnetic equations are developed by considering the variation form of Hamilton's principle. The effects of important parameters of this problem such as applied electric and magnetic potentials, direct and shear parameter of foundation, three microlength-scale parameters, and two parameters of temperature rising are investigated on the vibration and bending results of problem.

Software and Hardware System for Fast Processes Study When Preparing Foundation Beds of Oil and Gas Facilities

NASA Astrophysics Data System (ADS)

Gruzin, A. V.; Gruzin, V. V.; Shalay, V. V.

2018-04-01

Analysis of existing technologies for preparing foundation beds of oil and gas buildings and structures has revealed the lack of reasoned recommendations on the selection of rational technical and technological parameters of compaction. To study the nature of the dynamics of fast processes during compaction of foundation beds of oil and gas facilities, a specialized software and hardware system was developed. The method of calculating the basic technical parameters of the equipment for recording fast processes is presented, as well as the algorithm for processing the experimental data. The performed preliminary studies confirmed the accuracy of the decisions made and the calculations performed.

The foundation of self-esteem.

PubMed Central

Bailey, Joseph A.

2003-01-01

Self-esteem is a simplistic term for varied and complex mental states pertaining to how one views oneself. It takes but little research in the voluminous literature to see the vagueness and inconsistencies in its various definitions. Even more problematic is the uncertainty concerning its foundational components. The importance of having a solid definition and specific ideas about the foundational components of self-esteem is that both pave the way to recognizing its causes; to predicting effects from those causes; and to organizing the trouble-shooting process for locating those philosophical flaws or psychological scars which lead to low self-esteem. The purpose of this paper is to offer a common ground for thinking about self-esteem at its most basic level. In order to distinguish the "basic level" from the rest of the components of self-esteem, let us liken it to a skyscraper building. Here, the focus is on the building's "underground foundation" and the base upon which that foundation rests. The base is a definition that allows for the assessment of the foundation. The underground foundation itself consists of the mental building blocks called self-meaning, self-identity, self-image, and self-concepts. To help illustrate their interactions, a few of the "masks" and "faces" of self-esteem will be mentioned. What is not being addressed is the "above ground structure"--those theories and manifestations dealt with by most mental health specialists. PMID:12793795

The foundation of self-esteem.

PubMed

Bailey, Joseph A

2003-05-01

Self-esteem is a simplistic term for varied and complex mental states pertaining to how one views oneself. It takes but little research in the voluminous literature to see the vagueness and inconsistencies in its various definitions. Even more problematic is the uncertainty concerning its foundational components. The importance of having a solid definition and specific ideas about the foundational components of self-esteem is that both pave the way to recognizing its causes; to predicting effects from those causes; and to organizing the trouble-shooting process for locating those philosophical flaws or psychological scars which lead to low self-esteem. The purpose of this paper is to offer a common ground for thinking about self-esteem at its most basic level. In order to distinguish the "basic level" from the rest of the components of self-esteem, let us liken it to a skyscraper building. Here, the focus is on the building's "underground foundation" and the base upon which that foundation rests. The base is a definition that allows for the assessment of the foundation. The underground foundation itself consists of the mental building blocks called self-meaning, self-identity, self-image, and self-concepts. To help illustrate their interactions, a few of the "masks" and "faces" of self-esteem will be mentioned. What is not being addressed is the "above ground structure"--those theories and manifestations dealt with by most mental health specialists.

Geotechnical consulting at the stages of design and full repair: A case study of village school in Minusinsk region, Russia

NASA Astrophysics Data System (ADS)

Khalimov, Oleg; Strelnikov, Dmitry

2017-11-01

The article provides an experimental material showing an investigation of soil under the foundations base of a dangerous block of the building. The investigation was carried out by applying load from a stamp on the soil with a jack supporting the foundation base of the deformed building. There were originally offered two options to strengthen the foundation - a broader base and improvement of the soil with the plate. However, quite a different option was accepted due to the full scale tests. The effective way to strengthen the foundation is measures undertaken without strengthening the soil and without increasing the width of the base, using the actual soil with deformations stabilized for years of operation. The strengthening of the bearing brick walls was made by tightening the main face laying with steel channel profiles to make a firm contact with the foundations. The conducted investigation is an example of geotechnical consulting and improvement of the geotechnical maintenance of dangerous structures at the stages of investigation, design and reconstruction.

Graph Theoretic Foundations of Multibody Dynamics Part I: Structural Properties

PubMed Central

Jain, Abhinandan

2011-01-01

This is the first part of two papers that use concepts from graph theory to obtain a deeper understanding of the mathematical foundations of multibody dynamics. The key contribution is the development of a unifying framework that shows that key analytical results and computational algorithms in multibody dynamics are a direct consequence of structural properties and require minimal assumptions about the specific nature of the underlying multibody system. This first part focuses on identifying the abstract graph theoretic structural properties of spatial operator techniques in multibody dynamics. The second part paper exploits these structural properties to develop a broad spectrum of analytical results and computational algorithms. Towards this, we begin with the notion of graph adjacency matrices and generalize it to define block-weighted adjacency (BWA) matrices and their 1-resolvents. Previously developed spatial operators are shown to be special cases of such BWA matrices and their 1-resolvents. These properties are shown to hold broadly for serial and tree topology multibody systems. Specializations of the BWA and 1-resolvent matrices are referred to as spatial kernel operators (SKO) and spatial propagation operators (SPO). These operators and their special properties provide the foundation for the analytical and algorithmic techniques developed in the companion paper. We also use the graph theory concepts to study the topology induced sparsity structure of these operators and the system mass matrix. Similarity transformations of these operators are also studied. While the detailed development is done for the case of rigid-link multibody systems, the extension of these techniques to a broader class of systems (e.g. deformable links) are illustrated. PMID:22102790

[The influence of the organizational structure on the internal controls of a foundation for cancer research, prevention and care in the interior of the state of São Paulo, Brazil].

PubMed

Bonacim, Carlos Alberto Grespam; Salgado, André Luís; Girioli, Lumila Souza; de Araujo, Adriana Maria Procópio

2011-05-01

This work focuses on a discussion about the extent to which the level of organizational structure interferes in the internal control practices of non-governmental organizations (NGOs), especially those related to health. The objective of this work was to observe the efficiency of the internal control tests applied within the organizational structure of the Foundation for Cancer Research, Prevention and Care, checking the reliability of the accounting records and operational controls. A case study in a third sector health organization was the chosen methodology. The case study involved company interviews and the analysis of confidential reports. After an evaluation of the organizational structure (of the relations between officials and volunteers) and the application of evaluation proceedings on the quality of the internal controls, the extent to which the organizational structure interferes with the internal control practices of the hospital was assessed. It was revealed that there are structured mechanisms of control in the institution, however the implementation of these controls is inadequately performed. It was further detected that the level of the organizational structure does indeed interfere in internal control practices at the entity.

Moving Toward Improved Acquisition Outcomes: The Interrelationships Between Culture, Commitment, and Leadership

DTIC Science & Technology

2011-04-01

structure modeling . Psychological Methods, 1, 130–149. Mowday, R. T., Porter , L. W., & Steers, R. M. (1982). Organizational linkages: The psychology of...Leadership, Structural Equation Modeling , Analysis of Moment Structures (AMOS), Organizational Productivity MOVING TOWARD IMPROVED ACQUISITION OUTCOMES...greater than the sum of their individual elements. A conceptual model was identified and used as the foundation for building hypotheses. Structural

Application of Microgravity to the Assessment of Existing Structures and Structural Foundations.

DTIC Science & Technology

1988-04-29

UADGU Geophysique Francafse IUSRSU 6c. ADDRESS (City, State. and ZIP Code) 7b. ADDRESS (City, State, and ZIP Code) 20, Rue des Pavilions Box 65 92800...r (2.8 - 2.4) 286 AM~TCT f eldo f6 YOUOUVT 4. EXISTING STRUCTURES AND (U) CONPAGNIE DE PROSPECTION GEOPHYSIQUE FRANCAISE RUEIL-MALNAISO J LAKSHNRNRN

Introducing Algebraic Structures through Solving Equations: Vertical Content Knowledge for K-12 Mathematics Teachers

ERIC Educational Resources Information Center

Wasserman, Nicholas H.

2014-01-01

Algebraic structures are a necessary aspect of algebraic thinking for K-12 students and teachers. An approach for introducing the algebraic structure of groups and fields through the arithmetic properties required for solving simple equations is summarized; the collective (not individual) importance of these axioms as a foundation for algebraic…

Review of Preliminary Analysis Techniques for Tension Structures.

DTIC Science & Technology

1984-02-01

INTRODUCTION. .. ..... ....... ....... .... 1 1.1 Purpose of Study .. .. ........ ......... 1I 1.2 Motivation for Study . .. ..... ....... ... 2 1.3 Scope...of Study .. .. ....... ........... 5 Chapter 2. MECHANICS OF TENSION STRUCTURES .. ...... ......... 6 2.1 Deployment Phase...Purpose of Study Tension structures are ones in which the main load-carrying members trans- mit applied loads to the foundations or other supporting

Department of the Navy. FY 1994/FY 1995 Biennial Budget Estimates. Military Construction Program. FY 1994

DTIC Science & Technology

1992-01-01

3 are severely deteriorated. The concrete deck and supporting wood -pile structure are nearing the end of their life cycle. Both piers are to be...PROPOSED CONSTRUCTION One-story building with concrete foundation walls, load bearing masonry walls, and concrete floors; roof with wood truss framing...concrete building addition; concrete foundation and slab on grade; wood truss roof; 750 KVA. 3 phase transformer; utilities; concrete and storm drain. 11

Accurate reconstruction of the optical parameter distribution in participating medium based on the frequency-domain radiative transfer equation

NASA Astrophysics Data System (ADS)

Qiao, Yao-Bin; Qi, Hong; Zhao, Fang-Zhou; Ruan, Li-Ming

2016-12-01

Reconstructing the distribution of optical parameters in the participating medium based on the frequency-domain radiative transfer equation (FD-RTE) to probe the internal structure of the medium is investigated in the present work. The forward model of FD-RTE is solved via the finite volume method (FVM). The regularization term formatted by the generalized Gaussian Markov random field model is used in the objective function to overcome the ill-posed nature of the inverse problem. The multi-start conjugate gradient (MCG) method is employed to search the minimum of the objective function and increase the efficiency of convergence. A modified adjoint differentiation technique using the collimated radiative intensity is developed to calculate the gradient of the objective function with respect to the optical parameters. All simulation results show that the proposed reconstruction algorithm based on FD-RTE can obtain the accurate distributions of absorption and scattering coefficients. The reconstructed images of the scattering coefficient have less errors than those of the absorption coefficient, which indicates the former are more suitable to probing the inner structure. Project supported by the National Natural Science Foundation of China (Grant No. 51476043), the Major National Scientific Instruments and Equipment Development Special Foundation of China (Grant No. 51327803), and the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 51121004).

Structural dynamic and thermal stress analysis of nuclear reactor vessel support system

NASA Technical Reports Server (NTRS)

Chi-Diango, J.

1972-01-01

A nuclear reactor vessel is supported by a Z-ring and a box ring girder. The two proposed structural configurations to transmit the loads from the Z-ring and the box ring girder to the foundation are shown. The cantilever concrete ledge transmitting the load from the Z-ring and the box girder via the cavity wall to the foundation is shown, along with the loads being transmitted through one of the six steel columns. Both of these two supporting systems were analyzed by using rigid format 9 of NASTRAN for dynamic loads, and the thermal stresses were analyzed by AXISOL. The six column configuration was modeled by a combination of plate and bar elements, and the concrete cantilever ledge configuration was modeled by plate elements. Both configurations were found structurally satisfactory; however, nonstructural considerations favored the concrete cantilever ledge.

78 FR 13097 - Electric Power Research Institute; Seismic Evaluation Guidance

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-26

... outcrop motion for which the soil layers above the foundation elevation have been removed. Updating the... performing soil-structure interaction analyses. Consistent with guidance described in DC/COL-ISG-017, ``Ensuring Hazard-Consistent Seismic Input for Site Response and Soil Structure Interaction Analyses,'' the...

Vibration of functionally graded plate resting on viscoelastic elastic foundation subjected to moving loads

NASA Astrophysics Data System (ADS)

Duy Hien, Ta; Lam, Nguyen Ngoc

2018-04-01

The dynamics of plates subjected to a moving load must be considered by engineering mechanics and design structures. This paper deals with the dynamic responses of functionally graded (FG) rectangular plates resting on a viscoelastic foundation under moving loads. It is assumed that material properties of the plate vary continuously in the thickness direction according to the power-law. The governing equations are derived by using Hamilton’s principle, which considers the effect of the higher-order shear deformation in the plate. Transient responses of simply supported FG rectangular plates are employed by using state-space methods. Several examples are given for displacement and stresses in the plates with various structural parameters, and the effects of these parameters are discussed.

Analysis of Malay Word Structure by Pre-Service Special Education Teachers: Foundation-Level Knowledge for Remedial Instruction

ERIC Educational Resources Information Center

Lee, Lay Wah; Low, Hui Min

2014-01-01

Pre-service special educators' Malay word structure knowledge was assessed through their analysis of words. A total of 69 participants analysed a vocabulary list based on a set of criteria formulated from the Malay language word structure. Results indicated that they were able to count syllables and phonemes, and identify types of affixations;…

Field Measurement-Based System Identification and Dynamic Response Prediction of a Unique MIT Building.

PubMed

Cha, Young-Jin; Trocha, Peter; Büyüköztürk, Oral

2016-07-01

Tall buildings are ubiquitous in major cities and house the homes and workplaces of many individuals. However, relatively few studies have been carried out to study the dynamic characteristics of tall buildings based on field measurements. In this paper, the dynamic behavior of the Green Building, a unique 21-story tall structure located on the campus of the Massachusetts Institute of Technology (MIT, Cambridge, MA, USA), was characterized and modeled as a simplified lumped-mass beam model (SLMM), using data from a network of accelerometers. The accelerometer network was used to record structural responses due to ambient vibrations, blast loading, and the October 16th 2012 earthquake near Hollis Center (ME, USA). Spectral and signal coherence analysis of the collected data was used to identify natural frequencies, modes, foundation rocking behavior, and structural asymmetries. A relation between foundation rocking and structural natural frequencies was also found. Natural frequencies and structural acceleration from the field measurements were compared with those predicted by the SLMM which was updated by inverse solving based on advanced multiobjective optimization methods using the measured structural responses and found to have good agreement.

Field Measurement-Based System Identification and Dynamic Response Prediction of a Unique MIT Building

PubMed Central

Cha, Young-Jin; Trocha, Peter; Büyüköztürk, Oral

2016-01-01

Tall buildings are ubiquitous in major cities and house the homes and workplaces of many individuals. However, relatively few studies have been carried out to study the dynamic characteristics of tall buildings based on field measurements. In this paper, the dynamic behavior of the Green Building, a unique 21-story tall structure located on the campus of the Massachusetts Institute of Technology (MIT, Cambridge, MA, USA), was characterized and modeled as a simplified lumped-mass beam model (SLMM), using data from a network of accelerometers. The accelerometer network was used to record structural responses due to ambient vibrations, blast loading, and the October 16th 2012 earthquake near Hollis Center (ME, USA). Spectral and signal coherence analysis of the collected data was used to identify natural frequencies, modes, foundation rocking behavior, and structural asymmetries. A relation between foundation rocking and structural natural frequencies was also found. Natural frequencies and structural acceleration from the field measurements were compared with those predicted by the SLMM which was updated by inverse solving based on advanced multiobjective optimization methods using the measured structural responses and found to have good agreement. PMID:27376303

Structural phase transitions in monolayer molybdenum dichalcogenides

NASA Astrophysics Data System (ADS)

Choe, Duk-Hyun; Sung, Ha June; Chang, Kee Joo

2015-03-01

The recent discovery of two-dimensional materials such as graphene and transition metal dichalcogenides (TMDs) has provided opportunities to develop ultimate thin channel devices. In contrast to graphene, the existence of moderate band gap and strong spin-orbit coupling gives rise to exotic electronic properties which vary with layer thickness, lattice structure, and symmetry. TMDs commonly appear in two structures with distinct symmetries, trigonal prismatic 2H and octahedral 1T phases which are semiconducting and metallic, respectively. In this work, we investigate the structural and electronic properties of monolayer molybdenum dichalcogenides (MoX2, where X = S, Se, Te) through first-principles density functional calculations. We find a tendency that the semiconducting 2H phase is more stable than the metallic 1T phase. We show that a spontaneous symmetry breaking of 1T phase leads to various distorted octahedral (1T') phases, thus inducing a metal-to-semiconductor transition. We discuss the effects of carrier doping on the structural stability and the modification of the electronic structure. This work was supported by the National Research Foundation of Korea (NRF) under Grant No. NRF-2005-0093845 and Samsung Science and Technology Foundation under Grant No. SSTFBA1401-08.

A hybrid functional first-principles study on the band structure of non-strained Ge1-x Sn x alloys

NASA Astrophysics Data System (ADS)

Wang, Xiaohuai; Chen, Chengzhao; Feng, Shengqi; Wei, Xinyuan; Li, Yun

2017-12-01

Not Available Project supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars of the State Education Ministry of China (Grant No. [2015]-1098), the Open Project of the State Key Laboratory of Surface Physics of Fudan University, the Natural Science Foundation of Guangdong Province of China (Grant No. 2016A030307038), and the University Innovating and Strengthening Project of Department of Education of Guangdong Province, China (Grant No. 2015KTSCX090).

Strong anti-strain capacity of CoFeB/MgO interface on electronic structure and state coupling

NASA Astrophysics Data System (ADS)

Guo, Fei; Wu, Yaping; Wu, Zhiming; Chen, Ting; Li, Heng; Zhang, Chunmiao; Fu, Mingming; Lu, Yihong; Kang, Junyong

2018-01-01

Not Available Project supported by the National Key Research and Development Program of China (Grant No. 2016YFB0400801), the National Natural Science Foundation of China (Grant Nos. 61774128, 61674124, 11604275, 11304257, and 61227009), the Natural Science Foundation of Fujian Province of China (Grant Nos. 2017J01012, 2014J01026, 2016J01037, and 2015J01028), and the Fundamental Research Funds for the Central Universities, China (Grant Nos. 20720150027, 20720160044, 20720160122, 20720170085,20720170012, and 20720150033).

On Non-Abelian Extensions of 3-Lie Algebras

NASA Astrophysics Data System (ADS)

Song, Li-Na; Makhlouf, Abdenacer; Tang, Rong

2018-04-01

In this paper, we study non-abelian extensions of 3-Lie algebras through Maurer-Cartan elements. We show that there is a one-to-one correspondence between isomorphism classes of non-abelian extensions of 3-Lie algebras and equivalence classes of Maurer-Cartan elements in a DGLA. The structure of the Leibniz algebra on the space of fundamental objects is also analyzed. Supported by National Natural Science Foundation of China under Grant No. 11471139 and National Natural Science Foundation of Jilin Province under Grant No. 20170101050JC

Assessing the foundation of the Trojan Horse Method

NASA Astrophysics Data System (ADS)

Bertulani, C. A.; Hussein, M. S.; Typel, S.

2018-01-01

We discuss the foundation of the Trojan Horse Method (THM) within the Inclusive Non-Elastic Breakup (INEB) theory. We demonstrate that the direct part of the INEB cross section, which is of two-step character, becomes, in the DWBA limit of the three-body theory with appropriate approximations and redefinitions, similar in structure to the one-step THM cross section. We also discuss the connection of the THM to the Surrogate Method (SM), which is a genuine two-step process.

Translingual Practice as Spatial Repertoires: Expanding the Paradigm beyond Structuralist Orientations

ERIC Educational Resources Information Center

Canagarajah, Suresh

2018-01-01

The expanding orientations to translingualism are motivated by a gradual shift from the structuralist paradigm that has been treated as foundational in modern linguistics. Structuralism encouraged scholars to consider language, like other social constructs, as organized as a self-defining and closed structure, set apart from spatiotemporal…

Technology Underutilized: Principal's Role in Creating a Culture of High-Level Uses

ERIC Educational Resources Information Center

Foley, Darlene

2017-01-01

Teachers need to maximize technology to support student learning by drawing upon varying pedagogical orientations; however, teacher-centered, highly structured approaches that foster low-level thinking is more prevalent. Although highly structured approaches help develop students' foundational skills and content knowledge, student-centered,…

Learning to Compute: Computerization and Ordinary, Everyday Life

ERIC Educational Resources Information Center

Sullivan, Joseph F.

2009-01-01

This study utilizes the basic framework of classical sociology as a foundation for examining the intersection of the structural history of the computer revolution with ordinary, everyday life. Just as the classical forefathers of modern sociology--Marx, Durkheim, and Weber--attempted to understand their eras of structural transformation, this…

Foundation Year 2 doctors' reasons for leaving UK medicine: an in-depth analysis of decision-making using semistructured interviews.

PubMed

Smith, Samantha E; Tallentire, Victoria R; Pope, Lindsey M; Laidlaw, Anita H; Morrison, Jill

2018-03-02

To explore the reasons that doctors choose to leave UK medicine after their foundation year two posts. All four regions of Scotland. Foundation year two doctors (F2s) working throughout Scotland who were considering leaving UK medicine after foundation training were recruited on a volunteer basis. Maximum variation between participants was sought. Semistructured interviews were coded using template analysis. Six perspectives, described by Feldman and Ng, were used as the initial coding template. The codes were then configured to form a framework that explores the interplay of factors influencing Foundation Year 2 (F2) doctors' decisions to leave UK medicine. Seventeen participants were interviewed. Six perspectives were explored. Structural influences (countrywide and worldwide issues) included visas, economic and political considerations, structure of healthcare systems and availability of junior doctor jobs worldwide. Organisational influences (the National Health Service (NHS) and other healthcare providers) included staffing and compensation policies, the working environment and the learning environment. Occupational influences (specific to being a junior doctor) comprised the junior doctor contract, role and workload, pursuit of career interests and the structure of training. Work group influences (relationships with colleagues) included support at work, task interdependence and use of locums. Personal life influences consisted of work-life balance, and support in resolving work-life conflict. The underlying theme of 'taking a break' recurred through multiple narratives. F2s give reasons similar to those given by any professional considering a change in their job. However, working within the NHS as an F2 doctor brought specific challenges, such as a need to make a choice of specialty within the F2 year, exposure to workplace bullying and difficulties in raising concerns. Despite these challenges, most F2s did not view their decision to leave as a permanent job change, but as a temporary break from their current working lives. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

Folklore: A Foundation for Literary Study.

ERIC Educational Resources Information Center

Galda, S. L.; Pellegrini, A. D.

1981-01-01

Discusses folklore as the basis for literary study. Discusses two major theoretical positions on folklore universals--behaviorism and structuralism--and applies the two theories to literary analysis. (FL)

Free vibration analysis of a cracked shear deformable beam on a two-parameter elastic foundation using a lattice spring model

NASA Astrophysics Data System (ADS)

Attar, M.; Karrech, A.; Regenauer-Lieb, K.

2014-05-01

The free vibration of a shear deformable beam with multiple open edge cracks is studied using a lattice spring model (LSM). The beam is supported by a so-called two-parameter elastic foundation, where normal and shear foundation stiffnesses are considered. Through application of Timoshenko beam theory, the effects of transverse shear deformation and rotary inertia are taken into account. In the LSM, the beam is discretised into a one-dimensional assembly of segments interacting via rotational and shear springs. These springs represent the flexural and shear stiffnesses of the beam. The supporting action of the elastic foundation is described also by means of normal and shear springs acting on the centres of the segments. The relationship between stiffnesses of the springs and the elastic properties of the one-dimensional structure are identified by comparing the homogenised equations of motion of the discrete system and Timoshenko beam theory.

Alpine cushion plants inhibit the loss of phylogenetic diversity in severe environments.

PubMed

Butterfield, B J; Cavieres, L A; Callaway, R M; Cook, B J; Kikvidze, Z; Lortie, C J; Michalet, R; Pugnaire, F I; Schöb, C; Xiao, S; Zaitchek, B; Anthelme, F; Björk, R G; Dickinson, K; Gavilán, R; Kanka, R; Maalouf, J-P; Noroozi, J; Parajuli, R; Phoenix, G K; Reid, A; Ridenour, W; Rixen, C; Wipf, S; Zhao, L; Brooker, R W

2013-04-01

Biotic interactions can shape phylogenetic community structure (PCS). However, we do not know how the asymmetric effects of foundation species on communities extend to effects on PCS. We assessed PCS of alpine plant communities around the world, both within cushion plant foundation species and adjacent open ground, and compared the effects of foundation species and climate on alpha (within-microsite), beta (between open and cushion) and gamma (open and cushion combined) PCS. In the open, alpha PCS shifted from highly related to distantly related with increasing potential productivity. However, we found no relationship between gamma PCS and climate, due to divergence in phylogenetic composition between cushion and open sub-communities in severe environments, as demonstrated by increasing phylo-beta diversity. Thus, foundation species functioned as micro-refugia by facilitating less stress-tolerant lineages in severe environments, erasing a global productivity - phylogenetic diversity relationship that would go undetected without accounting for this important biotic interaction. © 2013 Blackwell Publishing Ltd/CNRS.

Application of 3D Laser Scanning Technology in Complex Rock Foundation Design

NASA Astrophysics Data System (ADS)

Junjie, Ma; Dan, Lu; Zhilong, Liu

2017-12-01

Taking the complex landform of Tanxi Mountain Landscape Bridge as an example, the application of 3D laser scanning technology in the mapping of complex rock foundations is studied in this paper. A set of 3D laser scanning technologies are formed and several key engineering problems are solved. The first is 3D laser scanning technology of complex landforms. 3D laser scanning technology is used to obtain a complete 3D point cloud data model of the complex landform. The detailed and accurate results of the surveying and mapping decrease the measuring time and supplementary measuring times. The second is 3D collaborative modeling of the complex landform. A 3D model of the complex landform is established based on the 3D point cloud data model. The super-structural foundation model is introduced for 3D collaborative design. The optimal design plan is selected and the construction progress is accelerated. And the last is finite-element analysis technology of the complex landform foundation. A 3D model of the complex landform is introduced into ANSYS for building a finite element model to calculate anti-slide stability of the rock, and provides a basis for the landform foundation design and construction.

Mobile demersal megafauna at common offshore wind turbine foundations in the German Bight (North Sea) two years after deployment - increased production rate of Cancer pagurus.

PubMed

Krone, R; Dederer, G; Kanstinger, P; Krämer, P; Schneider, C; Schmalenbach, I

2017-02-01

Within the next decades the construction of thousands of different types of large wind turbine foundations in the North Sea will substantially increase the amount of habitat available to reef fauna. To gain first insights which effect these substantial changes in habitat structure and diversity might have on faunal stocks settling on hard substrata, we compared the mobile demersal megafauna associated with the common types of wind turbine foundations ('jacket', 'tripod' and 'monopile with scour protections of natural rock') in the southern German Bight, North Sea. Monopiles with scour protection were mostly colonized by typical reef fauna. They were inhabited by an average of about 5000 edible crabs Cancer pagurus (per foundation), which is more than twice as much as found at the foundation types without scour protection. Strong evidence was found that all three foundation types not only function as aggregation sites, but also as nursery grounds for C. pagurus. Assuming equal shares of the three foundation types in future wind farms, we project that about 27% of the local stock of C. pagurus might be produced on site. When, for example, comparing the existing fauna at 1000 ship wrecks and on the autochthonous soft substrate with those which probably will establish at the foundations of 5000 hypothetically realized wind turbines, it becomes clear that the German Bight in the future will provide new artificial reef habitats for another 320% crabs (C. pagurus) and 50% wrasse (Ctenolabrus rupestris) representing substrata-limited mobile demersal hard bottom species. Further research is urgently required in order to evaluate this overspill as it would be an important ecological effect of the recent offshore wind power development. Copyright © 2016 Elsevier Ltd. All rights reserved.

Separation of traveling and standing waves in a finite dispersive string with partial or continuous viscoelastic foundation

NASA Astrophysics Data System (ADS)

Cheng, Xiangle; Blanchard, Antoine; Tan, Chin An; Lu, Huancai; Bergman, Lawrence A.; McFarland, D. Michael; Vakakis, Alexander F.

2017-12-01

The free and forced vibrations of a linear string with a local spring-damper on a partial elastic foundation, as well as a linear string on a viscoelastic foundation conceptualized as a continuous distribution of springs and dampers, are studied in this paper. Exact, analytical results are obtained for the free and forced response to a harmonic excitation applied at one end of the string. Relations between mode complexity and energy confinement with the dispersion in the string system are examined for the steady-state forced vibration, and numerical methods are applied to simulate the transient evolution of energy propagation. Eigenvalue loci veering and normal mode localization are observed for weakly coupled subsystems, when the foundation stiffness is sufficiently large, for both the spatially symmetric and asymmetric systems. The forced vibration results show that nonproportional damping-induced mode complexity, for which there are co-existing regions of purely traveling waves and standing waves, is attainable for the dispersive string system. However, this wave transition phenomenon depends strongly on the location of the attached discrete spring-damper relative to the foundation and whether the excitation frequency Ω is above or below the cutoff frequency ωc. When Ω<ωc, the wave transition cannot be attained for a string on an elastic foundation, but is possible if the string is on a viscoelastic foundation. Although this study is primarily formulated for a harmonic boundary excitation at one end of the string, generalization of the mode complexity can be deduced for the steady-state forced response of the string-foundation system to synchronous end excitations and is confirmed numerically. This work represents a novel study to understand the wave transitions in a dispersive structural system and lays the groundwork for potentially effective passive vibration control strategies.

Foundations for offshore wind turbines.

PubMed

Byrne, B W; Houlsby, G T

2003-12-15

An important engineering challenge of today, and a vital one for the future, is to develop and harvest alternative sources of energy. This is a firm priority in the UK, with the government setting a target of 10% of electricity from renewable sources by 2010. A component central to this commitment will be to harvest electrical power from the vast energy reserves offshore, through wind turbines or current or wave power generators. The most mature of these technologies is that of wind, as much technology transfer can be gained from onshore experience. Onshore wind farms, although supplying 'green energy', tend to provoke some objections on aesthetic grounds. These objections can be countered by locating the turbines offshore, where it will also be possible to install larger capacity turbines, thus maximizing the potential of each wind farm location. This paper explores some civil-engineering problems encountered for offshore wind turbines. A critical component is the connection of the structure to the ground, and in particular how the load applied to the structure is transferred safely to the surrounding soil. We review previous work on the design of offshore foundations, and then present some simple design calculations for sizing foundations and structures appropriate to the wind-turbine problem. We examine the deficiencies in the current design approaches, and the research currently under way to overcome these deficiencies. Designs must be improved so that these alternative energy sources can compete economically with traditional energy suppliers.

Crystal structure of human lysyl oxidase-like 2 (hLOXL2) in a precursor state.

PubMed

Zhang, Xi; Wang, Qifan; Wu, Jianping; Wang, Jiawei; Shi, Yigong; Liu, Minhao

2018-04-10

Lysyl oxidases (LOXs), a type of copper- and lysyl tyrosylquinone (LTQ) -dependent amine oxidase, catalyze the oxidative deamination of lysine residues of extracellular matrix (ECM) proteins such as elastins and collagens and generate aldehyde groups. The oxidative deamination of lysine represents the foundational step for the cross-linking of elastin and collagen and thus is crucial for ECM modeling. Despite their physiological significance, the structure of this important family of enzymes remains elusive. Here we report the crystal structure of human lysyl oxidase-like 2 (hLOXL2) at 2.4-Å resolution. Unexpectedly, the copper-binding site of hLOXL2 is occupied by zinc, which blocks LTQ generation and the enzymatic activity of hLOXL2 in our in vitro assay. Biochemical analysis confirms that copper loading robustly activates hLOXL2 and supports LTQ formation. Furthermore, the LTQ precursor residues in the structure are distanced by 16.6 Å, corroborating the notion that the present structure may represent a precursor state and that pronounced conformational rearrangements would be required for protein activation. The structure presented here establishes an important foundation for understanding the structure-function relationship of LOX proteins and will facilitate LOX-targeting drug discovery. Copyright © 2018 the Author(s). Published by PNAS.

Dynamic Sliding Analysis of a Gravity Dam with Fluid-Structure-Foundation Interaction Using Finite Elements and Newmark's Sliding Block Analysis

NASA Astrophysics Data System (ADS)

Goldgruber, Markus; Shahriari, Shervin; Zenz, Gerald

2015-11-01

To reduce the natural hazard risks—due to, e.g., earthquake excitation—seismic safety assessments are carried out. Especially under severe loading, due to maximum credible or the so-called safety evaluation earthquake, critical infrastructure, as these are high dams, must not fail. However, under high loading local failure might be allowed as long as the entire structure does not collapse. Hence, for a dam, the loss of sliding stability during a short time period might be acceptable if the cumulative displacements after an event are below an acceptable value. This performance is not only valid for gravity dams but also for rock blocks as sliding is even more imminent in zones with higher seismic activity. Sliding modes cannot only occur in the dam-foundation contact, but also in sliding planes formed due to geological conditions. This work compares the qualitative possible and critical displacements for two methods, the well-known Newmark's sliding block analysis and a Fluid-Foundation-Structure Interaction simulation with the finite elements method. The results comparison of the maximum displacements at the end of the seismic event of the two methods depicts that for high friction angles, they are fairly close. For low friction angles, the results are differing more. The conclusion is that the commonly used Newmark's sliding block analysis and the finite elements simulation are only comparable for high friction angles, where this factor dominates the behaviour of the structure. Worth to mention is that the proposed simulation methods are also applicable to dynamic rock wedge problems and not only to dams.

Structural analysis for a 40-story building

NASA Technical Reports Server (NTRS)

Hua, L.

1972-01-01

NASTRAN was chosen as the principal analytical tool for structural analysis of the Illinois Center Plaza Hotel Building in Chicago, Illinois. The building is a 40-story, reinforced concrete structure utilizing a monolithic slab-column system. The displacements, member stresses, and foundation loads due to wind load, live load, and dead load were obtained through a series of NASTRAN runs. These analyses and the input technique are described.

Intensities and spectral features of the {}^{4}{\\rm{I}}_{13/2}-{}^{4}{\\rm{I}}_{15/2} potential laser transition of Er3+ centers in CaF2-CeF3 disordered crystal

NASA Astrophysics Data System (ADS)

Wang, Qing-Guo; Su, Liangbi; Liu, Jun-Fang; Liu, Bin; Wu, Feng; Luo, Ping; Zhao, Heng-Yu; Shi, Jiao-Jiao; Xue, Yan-Yan; Xu, Xiao-Dong; Ryba-Romanowski, Witold; Solarz, Piotr; Lisiecki, Radoslaw; Wang, Zhan-Shan; Tang, Hui-Li; Xu, Jun

2017-10-01

Not Available Project supported by Shanghai Engineering Research Center for Sapphire Crystals, China (Grant No. 14DZ2252500), the Fund of Key Laboratory of Optoelectronic Materials Chemistry and Physics Chinese Academy of Sciences (Grant No. 2008DP17301), the Fundamental Research Funds for the Central Universities of China, the National Natural Science Foundation of China and China Academy of Engineering Physics Joint Fund (Grant No. U1530152), the National Natural Science Foundation of China (Grant Nos. 61475177 and 61621001), the Natural Science Foundation of Shanghai Municiple, China (Grant No. 13ZR1446100), and the MOE Key Laboratory of Advanced Micro-Structured Materials of China.

The transformation of weak saturated soils using piles-drains for improving its mechanical properties

NASA Astrophysics Data System (ADS)

Ter-Martirosyan, Z. G.; Ter-Martirosyan, A. Z.; Sidorov, V. V.

2018-04-01

In practice of increased responsibility structures design there are often weak saturated clayey soils with low characteristics of deformability and strength take place on the construction site. In these cases, foundations using piles-drains of sandy or coarse material are recommended by norms, which is able to bear the load and to accelerate the consolidation process. The presented solutions include an analytical solution of the interaction problem between piles and slab raft foundation with the surrounding soil of the base with the possibility of extension of pile shaft. The closed-form solutions to determine the stresses in pile shaft and in the soil under the foundation slab are obtained. The article presents the results of large scale tests in the pilot area construction of major energy facilities in Russia.

The Conceptual Framework of Thematic Mapping in Case Conceptualization.

PubMed

Ridley, Charles R; Jeffrey, Christina E

2017-04-01

This article, the 3rd in a series of 5, introduces the conceptual framework for thematic mapping, a novel approach to case conceptualization. The framework is transtheoretical in that it is not constrained by the tenets or concepts of any one therapeutic orientation and transdiagnostic in that it conceptualizes clients outside the constraints of diagnostic criteria. Thematic mapping comprises 4 components: a definition, foundational principles, defining features, and core concepts. These components of the framework, deemed building blocks, are explained in this article. Like the foundation of any structure, the heuristic value of the method requires that the building blocks have integrity, coherence, and sound anchoring. We assert that the conceptual framework provides a solid foundation, making thematic mapping a potential asset in mental health treatment. © 2017 Wiley Periodicals, Inc.

Application and research of recyclable cables in foundation pit support engineering

NASA Astrophysics Data System (ADS)

Zheng, Suping

2018-05-01

Anchoring cables are widely used in the construction of foundation pit as a temporary support structure. After the construction is completed, the anchor cables left in the ground will not only cause environmental pollution but also cause a great waste of resources. The emergence of recyclable cable technology, to avoid such problems, to achieve the secondary use of the anchor cable, excavation in the excavation project is more and more widely used. Combined with the design and construction of recoverable anchor cable in engineering practice, the application effect of recoverable anchor cable in foundation pit support is analyzed, and the conclusion that the support effect of recoverable anchor cable is stable and safe can be obtained Recyclable anchor cable in the future support projects to provide a reference.

45 CFR 98.2 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-10-01

... decree, the grandchild, great grandchild, sibling (if such provider lives in separate residence), niece...) structural changes to the foundation, roof, floor, exterior or load-bearing walls of a facility, or the...

45 CFR 98.2 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-10-01

... decree, the grandchild, great grandchild, sibling (if such provider lives in separate residence), niece...) structural changes to the foundation, roof, floor, exterior or load-bearing walls of a facility, or the...

45 CFR 98.2 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-10-01

... decree, the grandchild, great grandchild, sibling (if such provider lives in separate residence), niece...) structural changes to the foundation, roof, floor, exterior or load-bearing walls of a facility, or the...

45 CFR 98.2 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-10-01

... decree, the grandchild, great grandchild, sibling (if such provider lives in separate residence), niece...) structural changes to the foundation, roof, floor, exterior or load-bearing walls of a facility, or the...

45 CFR 98.2 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-10-01

... decree, the grandchild, great grandchild, sibling (if such provider lives in separate residence), niece...) structural changes to the foundation, roof, floor, exterior or load-bearing walls of a facility, or the...

78 FR 52496 - Sunshine Act Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-23

... Executive Session. MATTERS TO BE CONSIDERED: Discuss and select an organization structure for the Foundation..., filing of petitions and applications and agency #0;statements of organization and functions are examples...

An Overview of the Repair, Evaluation Maintenance and Rehabilitation (REMR) Research Program 1984-1989

DTIC Science & Technology

1990-03-01

conducted in the Great Pyramid of Cheops, Giza , Egypt. The Tomb is an existing structure of great national and patriotic significance, while the Great... Pyramid is one of the oldest existing structures built by man. Also, a comprehensive assessment of the foundation of Mill Creek Dam near Walla Walla

Do Students Understand Our Course Structure? Implications for Important Classroom Attitudes and Behavior

ERIC Educational Resources Information Center

Elicker, Joelle D.; Foust, Michelle Singer; Perry, Jennifer L.

2015-01-01

The complexity of a course's structure may influence how well students understand what is expected of them. Using the foundation of the industrial/organizational (I/O) psychology literature, the authors modified a measure of "Perceived System Knowledge" (Williams & Levy, 1992) for employee performance appraisal to be appropriate for…

Post-Evaluation of an Entrepreneurship Program for Inner-City Youth

ERIC Educational Resources Information Center

Doucet, LaRon

2010-01-01

This study evaluated program graduates of National Foundation for Teaching Entrepreneurship 1 to years after completing the program in inner city schools of Los Angeles, California. Twenty-seven out of 150 graduates participated in 2 semi-structured interviews in Northern and Southern California, or long semi-structured telephone interviews for…

Hierarchically Organized Behavior and Its Neural Foundations: A Reinforcement Learning Perspective

ERIC Educational Resources Information Center

Botvinick, Matthew M.; Niv, Yael; Barto, Andrew C.

2009-01-01

Research on human and animal behavior has long emphasized its hierarchical structure--the divisibility of ongoing behavior into discrete tasks, which are comprised of subtask sequences, which in turn are built of simple actions. The hierarchical structure of behavior has also been of enduring interest within neuroscience, where it has been widely…

A STRUCTURAL COURSE FOR VOCATIONAL ENGLISH.

ERIC Educational Resources Information Center

ERICKSON, JOHN

A COURSE, COMPLETE WITH DETAILED LESSON PLANS AND PRACTICE DRILLS, HAS BEEN DEVELOPED AT SAN DIEGO STATE COLLEGE, TO PROVIDE THE ADULT SPANISH-SPEAKING STUDENT WITH A BASIC FOUNDATION IN AMERICAN-ENGLISH GRAMMATICAL STRUCTURE, AS WELL AS AN AMPLE DAILY AND PROFESSIONAL VOCABULARY. THE IDEA OF TRANSLATING CONCEPTS AND VOCABULARY IS USED TO TEACH…

Development of hydraulic computer models to analyze tidal and coastal stream hydraulic conditions at highway structures : phase 2 for the Pooled Fund Study, SPR-3(22)

DOT National Transportation Integrated Search

1997-12-01

Highway structures are subjected to stream instability and foundation scour resulting from dynamic flow conditions caused by tides, currents, storm surges, and upland runoff. This phase of the study (Phase II) focused on (1) making useful modificatio...

A Structural Equation Model for Predicting Business Student Performance

ERIC Educational Resources Information Center

Pomykalski, James J.; Dion, Paul; Brock, James L.

2008-01-01

In this study, the authors developed a structural equation model that accounted for 79% of the variability of a student's final grade point average by using a sample size of 147 students. The model is based on student grades in 4 foundational business courses: introduction to business, macroeconomics, statistics, and using databases. Educators and…

Improving Self-Assembly by Varying the Temperature Periodically with Time

NASA Astrophysics Data System (ADS)

Raz, Oren; Jarzynski, Christopher

Self-assembly (SA) is the process by which basic components organize into a larger structure without external guidance. These processes are common in Nature, and also have technological applications, e.g. growing a crystal with a specific structure. So far, artificial SA processes have been designed mostly using diffusive building blocks with high specificity and directionality. The formation of the self-assembled structures is then driven by free-energy minimization into a thermodynamically stable state. In an alternative approach to SA, macroscopic parameters such as temperature, pressure, pH, magnetic field etc., are varied periodically with time. In this case, the SA structures are the stable periodic states of the driven system. Currently there are no design principles for periodically driven SA, other than in the limits of fast or weak driving. We present guiding ideas for self-assembly under periodic driving. As an example, we show a particular case in which self-assembly errors can be dramatically reduced by varying a system's temperature periodically with time. James S. McDonnell Foundation, and the US National Science Foundation: DMR-1506969.

Investigation of Expedient Ground Surfacing with a Glass Fiber-Resin Mixture by a Spray-Deposition Technique,

DTIC Science & Technology

PAVEMENTS, *REINFORCED PLASTICS), LANDING FIELDS, SPRAYS, GLASS TEXTILES, LAMINATED PLASTICS, TEST METHODS, FOUNDATIONS(STRUCTURES), SANDWICH CONSTRUCTION, SOILS, FEASIBILITY STUDIES, LOAD DISTRIBUTION

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

Karr, Dale G.; Yu, Bingbin; Sirnivas, Senu

To create long-term solutions for offshore wind turbines in a variety of environmental conditions, CAE tools are needed to model the design-driving loads that interact with an offshore wind turbine system during operation. This report describes our efforts in augmenting existing CAE tools used for offshore wind turbine analysis with a new module that can provide simulation capabilities for ice loading on the system. This augmentation was accomplished by creating an ice-loading module coupled to FAST8, the CAE tool maintained by the NREL for simulating land-based and offshore wind turbine dynamics. The new module includes both static and dynamic icemore » loading that can be applied during a dynamic simulation of the response of an offshore wind turbine. The ice forces can be prescribed, or influenced by the structure’s compliant response, or by the dynamics of both the structure and the ice floe. The new module covers ice failure modes of spalling, buckling, crushing, splitting, and bending. The supporting structure of wind turbines can be modeled as a vertical or sloping form at the waterline. The Inward Battered Guide Structure (IBGS) foundation designed by Keystone Engineering for the Great Lakes was used to study the ice models coupled to FAST8. The IBGS foundation ice loading simulations in FAST8 were compared to the baseline simulation case without ice loading. The ice conditions reflecting those from Lake Huron at Port Huron and Lake Michigan at North Manitou were studied under near rated wind speed of 12 m/s for the NREL 5-MW reference turbine. Simulations were performed on ice loading models 1 through 4 and ice model 6 with their respective sub-models. The purpose of ice model 5 is to investigate ice loading on sloping structures such as ice-cones on a monopile and is not suitable for multi-membered jacketed structures like the IBGS foundation. The key response parameters from the simulations, shear forces and moments from the tower base and IBGS foundation base, were compared. Ice models 1 and 6 do not significantly affect the tower fore-aft shear and moment. However, ice model 2 (dynamic analyses), model 3 (random ice loading), and model 4 (multiple ice failure zone loading) show increased effect on the tower fore-aft shear and moment with significant effect from ice model 3.1. In general ice loading creates large reaction forces and moments at the base of the IBGS foundation; the largest occurred in model 1.1 (steady creep ice indentation loading) followed by model 3.1 (random creep ice indentation loading). In general the power production from the ice loading cases had little deviation from the baseline case without ice loading. For ultimate limit state (ULS), ice model 1.1 ice and 3.1 appear to be the ice most critical models to consider at an early stage of design. Ice model 4 is an important tool for assessing structural fatigue.« less

Electromagnetic sensors for monitoring of scour and deposition processes at bridges and offshore wind turbines

NASA Astrophysics Data System (ADS)

Michalis, Panagiotis; Tarantino, Alessandro; Judd, Martin

2014-05-01

Recent increases in precipitation have resulted in severe and frequent flooding incidents. This has put hydraulic structures at high risk of failure due to scour, with severe consequences to public safety and significant economic losses. Foundation scour is the leading cause of bridge failures and one of the main climate change impacts to highway and railway infrastructure. Scour action is also being considered as a major risk for offshore wind farm developments as it leads to excessive excavation of the surrounding seabed. Bed level conditions at underwater foundations are very difficult to evaluate, considering that scour holes are often re-filled by deposited loose material which is easily eroded during smaller scale events. An ability to gather information concerning the evolution of scouring will enable the validation of models derived from laboratory-based studies and the assessment of different engineering designs. Several efforts have focused on the development of instrumentation techniques to measure scour processes at foundations. However, they are not being used routinely due to numerous technical and cost issues; therefore, scour continues to be inspected visually. This research project presents a new sensing technique, designed to measure scour depth variation and sediment deposition around the foundations of bridges and offshore wind turbines, and to provide an early warning of an impending structural failure. The monitoring system consists of a probe with integrated electromagnetic sensors, designed to detect the change in the surrounding medium around the foundation structure. The probe is linked to a wireless network to enable remote data acquisition. A developed prototype and a commercial sensor were evaluated to quantify their capabilities to detect scour and sediment deposition processes. Finite element modelling was performed to define the optimum geometric characteristics of the prototype scour sensor based on models with various permittivity conditions. The experimental analysis was conducted using simulations and open channel flume tests in different sediment and temperature conditions. The density and salinity effects on the response of the sensors were also evaluated and reported herein. The obtained results indicate that the sensors are capable of exhibiting high sensitivity to scour and sediment deposition processes under the different tested environmental conditions. Saline water and temperature induced electrical conductivity changes were also found to have inevitable influences on the sensor signals. Based on this research, it is concluded that the proposed monitoring system has considerable potential for field applications that will contribute to improving the resilience and sustainability of hydraulic and marine structures.

Overall interior view of structures shop (11 shop) located on ...

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

Overall interior view of structures shop (11 shop) located on west side of building 57 - looking north; the south end of the structures shop was devoted to welding heavy plate foundations and ship components; the floor is fabricated of case steel and features a grillwork of 1 1/2 fabricated holes which are used as sockets for gripping position pins. - Naval Base Philadelphia-Philadelphia Naval Shipyard, Structure Shop, League Island, Philadelphia, Philadelphia County, PA

A low-threshold nanolaser based on hybrid plasmonic waveguides at the deep subwavelength scale

NASA Astrophysics Data System (ADS)

Li, Zhi-Quan; Piao, Rui-Qi; Zhao, Jing-Jing; Meng, Xiao-Yun; Tong, Kai

2015-07-01

A novel nanolaser structure based on a hybrid plasmonic waveguide is proposed and investigated. The coupling between the metal nanowire and the high-index semiconductor nanowire with optical gain leads to a strong field enhancement in the air gap region and low propagation loss, which enables the realization of lasing at the deep subwavelength scale. By optimizing the geometric parameters of the structure, a minimal lasing threshold is achieved while maintaining the capacity of ultra-deep subwavelength mode confinement. Compared with the previous coupled nanowire pair based hybrid plasmonic structure, a lower threshold can be obtained with the same geometric parameters. The proposed nanolaser can be integrated into a miniature chip as a nanoscale light source and has the potential to be widely used in optical communication and optical sensing technology. Project supported by the National Natural Science Foundation of China (Grant No. 61172044) and the Natural Science Foundation of Hebei Province, China (Grant No. F2014501150).

Editorial perspective: Laying the foundations for next generation models of ADHD neuropsychology.

PubMed

Sonuga-Barke, Edmund J S; Coghill, David

2014-11-01

The JCPP has just published a virtual issue focusing specifically on the journal's contribution to progress in the field of ADHD neuropsychology over last 30 years and its role in establishing the foundations of next generation ADHD neuropsychology models. The virtual issue is structured around six themes. Here we provide a précis of the issue summarizing these themes and illustrating each with a reference to an influential paper published over the last 5 years. © 2014 Association for Child and Adolescent Mental Health.

Philosophical foundations of French and U.S. nosology.

PubMed

Kroll, J

1979-09-01

The author examines the philosophical foundations of French and American nosology with a view toward understanding the relatively minor influence of French psychiatry in America. Despite the excellence of its descriptive psychiatry, much of French nosological writing is based on philosophical viewpoints that are antithetical to the empirical and pragmatic traditions of American psychiatry. French nosology, which is closely involved with the metaphysical issues of existentialism, phenomenalism, and structuralism, reveals these interests in language and concepts that do not easily permit its hypotheses to be scientifically tested, a prerequisite for any American classification.

A Study to Understand the Potential Vulnerabilities to the Foundations of Historic Structures in Coastal Areas

NASA Astrophysics Data System (ADS)

Hall, C. L.; Curran, B.; Jefferson, M.; Routhier, M.; Mulukutla, G. K.

2011-12-01

Sea level rise, one of the most important manifestations of climate change is expected to result in increased coastal erosion and storm surge flooding. This work reports on a project undertaken to assess the vulnerability of foundations of historic structures in coastal areas to the potential consequences from climate change resulting from increased storm surge flooding. Foundations of historic buildings are especially vulnerable to the seepage and ground water intrusion. Many historic structures themselves are used to house valuable historic collections making it all the important to preserve and protect these structures. Data collected from a field subsurface geophysical survey, geospatial field survey, and a simulation to understand the hydrological conditions of the site useful to build an understanding of threats to foundations of historic structures located on the coast. The study site chosen for this project is the Strawbery Banke Living History Museum, in Portsmouth, NH. Located very close to the banks of the Piscataqua River at its meeting point with the Atlantic Ocean, it consists of many buildings of historical importance dating as far back as 1690. Upstream of the river is the tidal estuary system, the Great Bay which itself is formed by a confluence of seven major rivers, making it a highly dynamic, tide-dominated body of fresh and saltwater. Strawbery Banke is representative of historic structures, located on the Northeastern coast of the US, that will likely be impacted by climate change. The primary threat to the sub-structures for the site is Puddle Dock; a tidal inlet , that lies at the heart of the facility, that once provided direct river access to Strawbery Banke (and since filled around 1900). Results from the long term deployment of in -situ water level loggers in test wells, temperature and relative humidity sensors, and a ground penetration radar survey of the Puddle Dock, along with the detailed fine-scale elevation survey of the site provide a window into the seasonality of ground water levels and the dynamic equilibrium of fresh and saltwater. Initial analysis of the data indicates that at present Puddle Dock, acts as a conduit for tidal flows, albeit in a restrained manner. This can be attributed to the very unscientific way that it was filled perhaps with garbage, and other waste. It is anticipated the principles applied for this work can be replicated for assessing the vulnerability of other at-risk historical structures in the Northeastern US. Support for purchase of hardware came from National Geographic Society's Waitt Grant program, and the Undergraduate scholarships support was provided by a grant from University of New Hampshire's Joan and James Leitzel Center for Mathematics, Science and Engineering Education.

Impact of Underwater Explosions on Concrete Bridge Foundations

DTIC Science & Technology

2016-06-01

www.theconstructioncivil.org/ [16] M. Aggour, A. Hachichi and M. Mayer, “Nondestructive evaluation of timber bridge piles,” in Proceedings of a Session a Structure Congress...detonation must be executed a safe distance from any critical infrastructure to ensure the survivability of the structure . This thesis implements...be executed a safe distance from any critical infrastructure to ensure the survivability of the structure . This thesis implements the Dynamic System

1. VIEW OF PATTERN STORAGE BUILDING NO. 5 (wooden structure ...

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

1. VIEW OF PATTERN STORAGE BUILDING NO. 5 (wooden structure to right) AND NO. 6 (brick structure to the left, ca. 1891) ON THE EASTERN BANK OF THE STONY CREEK RIVER. Brick foundation for the pump machinery and brick conduit tunnel are still intact in the basement of Pattern Storage Building No. 6. - Johnson Steel Street Rail Company, Pattern Storage Building, 525 Central Avenue, Johnstown, Cambria County, PA

A national questionnaire survey of consultants and middle grade doctors' perception of foundation doctors in obstetrics and gynaecology in the United Kingdom.

PubMed

Ismail, Sharif I M F

2014-12-01

The aim of this study was to compare foundation doctors in obstetrics and gynaecology to the former grade of senior house officer, as perceived by their consultant and middle grade colleagues. A self-construct questionnaire was sent to College District Tutors in obstetrics and gynaecology in all hospitals in the United Kingdom, for circulation to all consultants and middle grade doctors in obstetrics and gynaecology in their departments. A total of 155 questionnaires were returned, 143 completed and 12 indicating not having foundation doctors. Whilst about 50 % of respondents ranked the competencies of foundation year doctors as similar to that of the former senior house officer grade, the ratings were down in areas specific to obstetrics and gynaecology, such as seeing new patients in antenatal clinic, and up in general terms such as communication. General comments highlighted differences in ability and role and suggested longer attachments and less frequent changes in training structure. The study highlighted the need to focus on teaching generic skills in shorter durations and reflection on whole-patient management, which are relevant to all specialities. It underlined the impact of more frequent change of doctors on service delivery and recommended having a further look at foundation training programme before making any future changes.

Analysis of Bearing Capacity Pile Foundation with Using Capwap Software for Testing Pile Driving Analyzer (pda) at Fasfel Development Project Parlimbungan Ketek Sikara-Kara Mandailing Natal District (north Sumatera)

NASA Astrophysics Data System (ADS)

Oberlyn Simanjuntak, Johan; Suita, Diana

2017-12-01

Pile foundation is one type deep foundation that serves to distribute the load of hard soil structure loading which has a high bearing capacity that is located deep enough inside the soil. To determine the bearing capacity of the pile and at the same time control the Calendring results, the Pile Driving Analyzer (PDA) test at 8 pile sections from the 84 point piling section (10% of the number sections), the results were analyzed by CAPWAP SOFTWARE, and the highest bearing capacity of Ru 177 ton and the lowest bearing capacity of 111 tons, is bigger than the plan load which load plans that is 60,9 tons. Finally the PDA safe is bearing bearing capacity of the load planning.

The research infrastructure of Chinese foundations, a database for Chinese civil society studies

PubMed Central

Ma, Ji; Wang, Qun; Dong, Chao; Li, Huafang

2017-01-01

This paper provides technical details and user guidance on the Research Infrastructure of Chinese Foundations (RICF), a database of Chinese foundations, civil society, and social development in general. The structure of the RICF is deliberately designed and normalized according to the Three Normal Forms. The database schema consists of three major themes: foundations’ basic organizational profile (i.e., basic profile, board member, supervisor, staff, and related party tables), program information (i.e., program information, major program, program relationship, and major recipient tables), and financial information (i.e., financial position, financial activities, cash flow, activity overview, and large donation tables). The RICF’s data quality can be measured by four criteria: data source reputation and credibility, completeness, accuracy, and timeliness. Data records are properly versioned, allowing verification and replication for research purposes. PMID:28742065

Quantum Structure in Cognition and the Foundations of Human Reasoning

NASA Astrophysics Data System (ADS)

Aerts, Diederik; Sozzo, Sandro; Veloz, Tomas

2015-12-01

Traditional cognitive science rests on a foundation of classical logic and probability theory. This foundation has been seriously challenged by several findings in experimental psychology on human decision making. Meanwhile, the formalism of quantum theory has provided an efficient resource for modeling these classically problematical situations. In this paper, we start from our successful quantum-theoretic approach to the modeling of concept combinations to formulate a unifying explanatory hypothesis. In it, human reasoning is the superposition of two processes - a conceptual reasoning, whose nature is emergence of new conceptuality, and a logical reasoning, founded on an algebraic calculus of the logical type. In most cognitive processes however, the former reasoning prevails over the latter. In this perspective, the observed deviations from classical logical reasoning should not be interpreted as biases but, rather, as natural expressions of emergence in its deepest form.

Sources of Individual Differences in Emerging Competence With Numeration Understanding Versus Multidigit Calculation Skill

PubMed Central

Fuchs, Lynn S.; Geary, David C.; Fuchs, Douglas; Compton, Donald L.; Hamlett, Carol L.

2014-01-01

This study investigated contributions of general cognitive abilities and foundational mathematical competencies to numeration understanding (i.e., base-10 structure) versus multidigit calculation skill. Children (n = 394, M = 6.5 years) were assessed on general cognitive abilities and foundational numerical competencies at start of 1st grade; on the same numerical competencies, multidigit calculation skill, and numeration understanding at end of 2nd grade; and on multidigit calculation skill and numeration understanding at end of 3rd grade. Path-analytic mediation analysis revealed that general cognitive predictors exerted more direct and more substantial effects on numeration understanding than on multidigit calculations. Foundational mathematics competencies contributed to both outcomes, but largely via 2nd-grade mathematics achievement, and results suggest a mutually supportive role between numeration understanding and multidigit calculations. PMID:25284885

24 CFR 200.926 - Minimum property standards for one and two family dwellings.

Code of Federal Regulations, 2011 CFR

2011-04-01

... units in a structure where the units are located side-by-side in town house fashion. Section 200.926d(c... the subarea for seismic design (see § 200.926a(c)(5)), or if it fails to regulate subareas in more..., structural loads and seismic design, foundation systems, materials standards, construction components, glass...

24 CFR 200.926 - Minimum property standards for one and two family dwellings.

Code of Federal Regulations, 2010 CFR

2010-04-01

... units in a structure where the units are located side-by-side in town house fashion. Section 200.926d(c... the subarea for seismic design (see § 200.926a(c)(5)), or if it fails to regulate subareas in more..., structural loads and seismic design, foundation systems, materials standards, construction components, glass...

Stability of large-scale systems.

NASA Technical Reports Server (NTRS)

Siljak, D. D.

1972-01-01

The purpose of this paper is to present the results obtained in stability study of large-scale systems based upon the comparison principle and vector Liapunov functions. The exposition is essentially self-contained, with emphasis on recent innovations which utilize explicit information about the system structure. This provides a natural foundation for the stability theory of dynamic systems under structural perturbations.

The Structure of the Managerial System of Higher Education's Development

ERIC Educational Resources Information Center

Levina, Elena Y.; Kutuev, Ruslan A.; Balakhnina, Lidia V.; Tumarov, Konstantin B.; Chudnovskiy, Alexey D.; Shagiev, ?ulat V.

2016-01-01

The research urgency is caused by necessity of planning regulation of higher education development at all levels of management. The purpose of this article is to develop the structure of a control system of higher education development, the Foundation of which is understanding of the quality of higher education as factor for development of the…

Observing Preschoolers' Social-Emotional Behavior: Structure, Foundations, and Prediction of Early School Success

ERIC Educational Resources Information Center

Denham, Susanne A.; Bassett, Hideko Hamada; Thayer, Sara K.; Mincic, Melissa S.; Sirotkin, Yana S.; Zinsser, Katherine

2012-01-01

Social-emotional behavior of 352 3- and 4-year-olds attending private childcare and Head Start programs was observed using the Minnesota Preschool Affect Checklist, Revised (MPAC-R). Goals of the investigation included (a) using MPAC-R data to extract a shortened version, MPAC-R/S, comparing structure, internal consistency, test-retest…

Examining Barriers to Internationalisation Created by Diverse Systems and Structures in Vocational Education and Training

ERIC Educational Resources Information Center

Shaw, Angela Joy; Shaw, Kieron John; Blake, Suzanne

2016-01-01

In a global society, all educational sectors need to recognise internationalism as a core, foundational principle. Whilst most educational sectors are taking up that challenge, vocational education and training (VET) is still being pulled towards the national agenda in terms of its structures and systems, and the policies driving it,…

SEISMIC RESPONSE OF DAM WITH SOIL-STRUCTURE INTERACTION.

USGS Publications Warehouse

Bycroft, G.N.; Mork, P.N.

1987-01-01

An analytical solution to the response of a long trapezoidal-section dam on a foundation consisting of an elastic half-space and subjected to simulated earthquake motion is developed. An optimum seismic design is achieved when the cross section of the dam is triangular. The effect of soil structure interaction is to lower the strain occurring in the dam.

Form, Experience and the Centrality of Rhetoric to Pedagogy

ERIC Educational Resources Information Center

Brummett, Barry

2015-01-01

This essay notes a resurgence of interest in rhetorical studies on the appeal of form, grounded in the work of rhetorical theorist Kenneth Burke. The essay argues that form is not only a way to structure discourses, it is a way to structure experience. Form is foundational in creating perceptions and thus experiences. Form is also highly…

46 CFR 32.60-30 - Tank vessels with independent tanks-TB/ALL.

Code of Federal Regulations, 2011 CFR

2011-10-01

... tanks and hull structure can be made. (b) When an independent cargo tank is located in an enclosed space... be safeguarded as such as required by this subpart. (c) Cargo tanks independent of the hull structure shall be supported in saddles or on foundations of steel or other suitable material and securely...

46 CFR 32.60-30 - Tank vessels with independent tanks-TB/ALL.

Code of Federal Regulations, 2014 CFR

2014-10-01

... tanks and hull structure can be made. (b) When an independent cargo tank is located in an enclosed space... be safeguarded as such as required by this subpart. (c) Cargo tanks independent of the hull structure shall be supported in saddles or on foundations of steel or other suitable material and securely...

46 CFR 32.60-30 - Tank vessels with independent tanks-TB/ALL.

Code of Federal Regulations, 2012 CFR

2012-10-01

... tanks and hull structure can be made. (b) When an independent cargo tank is located in an enclosed space... be safeguarded as such as required by this subpart. (c) Cargo tanks independent of the hull structure shall be supported in saddles or on foundations of steel or other suitable material and securely...

46 CFR 32.60-30 - Tank vessels with independent tanks-TB/ALL.

Code of Federal Regulations, 2013 CFR

2013-10-01

... tanks and hull structure can be made. (b) When an independent cargo tank is located in an enclosed space... be safeguarded as such as required by this subpart. (c) Cargo tanks independent of the hull structure shall be supported in saddles or on foundations of steel or other suitable material and securely...

46 CFR 32.60-30 - Tank vessels with independent tanks-TB/ALL.

Code of Federal Regulations, 2010 CFR

2010-10-01

... tanks and hull structure can be made. (b) When an independent cargo tank is located in an enclosed space... be safeguarded as such as required by this subpart. (c) Cargo tanks independent of the hull structure shall be supported in saddles or on foundations of steel or other suitable material and securely...

Quantum Chemistry via the Periodic Law.

ERIC Educational Resources Information Center

Blinder, S. M.

1981-01-01

Describes an approach to quantum mechanics exploiting the periodic structure of the elements as a foundation for the quantum theory of matter. Indicates that a quantum chemistry course can be developed using this approach. (SK)

The Structure-Preserving Constraint and the Universal Base Hypothesis

ERIC Educational Resources Information Center

Kravif, Diane

1973-01-01

Revised version of a paper supported by a National Science Foundation graduate fellowship. The universal base hypothesis states that all natural languages utilize the same base component in their transformational grammars. (DD)

Observation of two-dimensional Fermi surface and Dirac dispersion in the new material YbMnSb2

NASA Astrophysics Data System (ADS)

Kealhofer, Robert; Jang, Sooyoung; Griffin, Sinead; John, Caolan; Doyle, Spencer; Neaton, Jeffrey; Analytis, James G.; Denlinger, J. D.; Benavides, Katherine; Chan, Julia

We present the synthesis, crystal structure, electronic structure, and transport properties of the new material YbMnSb2. Our measurements reveal that this system is a low-carrier-density semimetal with a 2D Fermi surface arising from a 3D Dirac dispersion. This Fermi surface is consistent with the predictions of antiferromagnetic density functional theory calculations and the Fermi surface observed via angle-resolved photoemission spectroscopy. The quantitative agreement between these measurements and calculations indicates that YbMnSb2 may be a new topological semimetal in the presence of magnetic order. R. K. is supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1106400. C. J., J. G. A., and much of this work received support from the Gordon and Betty Moore Foundation Grant No. GBMF4374.

Intelligent Propulsion System Foundation Technology: Summary of Research

NASA Technical Reports Server (NTRS)

2008-01-01

The purpose of this cooperative agreement was to develop a foundation of intelligent propulsion technologies for NASA and industry that will have an impact on safety, noise, emissions, and cost. These intelligent engine technologies included sensors, electronics, communications, control logic, actuators, smart materials and structures, and system studies. Furthermore, this cooperative agreement helped prepare future graduates to develop the revolutionary intelligent propulsion technologies that will be needed to ensure pre-eminence of the U.S. aerospace industry. This Propulsion 21 - Phase 11 program consisted of four primary research areas and associated work elements at Ohio universities: 1.0 Turbine Engine Prognostics, 2.0 Active Controls for Emissions and Noise Reduction, 3.0 Active Structural Controls and Performance, and 4.0 System Studies and Integration. Phase l, which was conducted during the period August 1, 2003, through September 30, 2004, has been reported separately.

An action research approach for developing research and innovation in nursing and midwifery practice: building research capacity in one NHS foundation trust.

PubMed

Moore, Jenny; Crozier, Kenda; Kite, Katharine

2012-01-01

The National Health Service in the United Kingdom is committed to a process of reform centred on quality care and innovative practice. Central to this process is the need for research capacity building within the workforce. The aim of this study was to develop an infrastructure for research capacity building within one National Health Service Foundation Trust. Using an Action Research methodology, sixteen individuals were purposefully selected from a population of nurses and midwives to participate in the study. This nonprobability sampling method enabled the researchers to select participants on the basis of who would be most informative about existing research capacity building structures and processes within the Trust. Data were collected in the form of semi-structured individual interviews with each participant. The main findings were that research activity was not embedded in the culture of the organisation, and initiating and undertaking change was a complex process. As a result, a range of structures and processes which were considered necessary to enable the Trust move forward in developing capacity and capability for research were developed and implemented. This paper reports the first two stages of this process, namely: the findings from the pre-step and an outline of how these findings were used to create an infrastructure to support research capacity building within one NHS Foundation Trust Hospital in the United Kingdom. Copyright © 2011 Elsevier Ltd. All rights reserved.

Systematic study of α preformation probability of nuclear isomeric and ground states

NASA Astrophysics Data System (ADS)

Sun, Xiao-Dong; Wu, Xi-Jun; Zheng, Bo; Xiang, Dong; Guo, Ping; Li, Xiao-Hua

2017-01-01

In this paper, based on the two-potential approach combining with the isospin dependent nuclear potential, we systematically compare the α preformation probabilities of odd-A nuclei between nuclear isomeric states and ground states. The results indicate that during the process of α particle preforming, the low lying nuclear isomeric states are similar to ground states. Meanwhile, in the framework of single nucleon energy level structure, we find that for nuclei with nucleon number below the magic numbers, the α preformation probabilities of high-spin states seem to be larger than low ones. For nuclei with nucleon number above the magic numbers, the α preformation probabilities of isomeric states are larger than those of ground states. Supported by National Natural Science Foundation of China (11205083), Construct Program of Key Discipline in Hunan Province, Research Foundation of Education Bureau of Hunan Province, China (15A159), Natural Science Foundation of Hunan Province, China (2015JJ3103, 2015JJ2123), Innovation Group of Nuclear and Particle Physics in USC, Hunan Provincial Innovation Foundation for Postgraduate (CX2015B398)

Mechanical and deformation analyses of pile foundation for supporting structure of off-shore wind turbine at Changhua coast in Taiwan

NASA Astrophysics Data System (ADS)

Wang, W. C.; Lin, D. G.

2015-12-01

This study investigates the bearing capacities and mechanical behaviors of pile foundation installed on the seabed of wind farm near Chang-Hua coast of western Taiwan for the supporting structure of offshore wind turbine. A series of three-dimensional (3-D) numerical modeling of pile foundation subjected to various types of combined loading were carried out using Plaix-3D finite element program to investigate the interactive behaviors between soil and pile. In the numerical modeling, pile diameter, pile length and pile spacing were selected as design parameters to inspect their effects on the bearing capacities and deformation behaviors of the pile foundation. For a specific design parameter combination, one can obtain the corresponding loading-displacement curve, various ultimate bearing capacities, V-H (Vertical-Horizontal combined loading) ultimate bearing capacity envelope, and p-ycurve of pile foundation. Numerical results indicate that: (1) Large displacement and plastic points at ultimate state mostly distribute and concentrate in the topsoil of seabed and around pile head. (2) The soil resistance on the soil-pile interface is ascending with the increases of depth, pile diameter and pile length. (3) The vertical and horizontal bearing capacities of pile group increase significantly with the increase of pile diameter. (4) The vertical and bending moment capacities of pile group increase greatly with the increase of pile length whereas the horizontal capacity is almost insensitive to pile length. (5) The bending moment of pile is highly influenced by the pile spacing. (6) For different design parameters, the shape of ultimate bearing capacity envelopes of pile group on V-H plane is similar while the envelopes will expand as the design parameters increase. For different loading levels of bending moment, the envelopes on V-H plane will contract gradually as the bending moment loading increasing.

Structural and process factors affecting the implementation of antimicrobial resistance prevention and control strategies in U.S. hospitals.

PubMed

Chou, Ann F; Yano, Elizabeth M; McCoy, Kimberly D; Willis, Deanna R; Doebbeling, Bradley N

2008-01-01

To address increases in the incidence of infection with antimicrobial-resistant pathogens, the National Foundation for Infectious Diseases and Centers for Disease Control and Prevention proposed two sets of strategies to (a) optimize antibiotic use and (b) prevent the spread of antimicrobial resistance and control transmission. However, little is known about the implementation of these strategies. Our objective is to explore organizational structural and process factors that facilitate the implementation of National Foundation for Infectious Diseases/Centers for Disease Control and Prevention strategies in U.S. hospitals. We surveyed 448 infection control professionals from a national sample of hospitals. Clinically anchored in the Donabedian model that defines quality in terms of structural and process factors, with the structural domain further informed by a contingency approach, we modeled the degree to which National Foundation for Infectious Diseases and Centers for Disease Control and Prevention strategies were implemented as a function of formalization and standardization of protocols, centralization of decision-making hierarchy, information technology capabilities, culture, communication mechanisms, and interdepartmental coordination, controlling for hospital characteristics. Formalization, standardization, centralization, institutional culture, provider-management communication, and information technology use were associated with optimal antibiotic use and enhanced implementation of strategies that prevent and control antimicrobial resistance spread (all p < .001). However, interdepartmental coordination for patient care was inversely related with antibiotic use in contrast to antimicrobial resistance spread prevention and control (p < .0001). Formalization and standardization may eliminate staff role conflict, whereas centralized authority may minimize ambiguity. Culture and communication likely promote internal trust, whereas information technology use helps integrate and support these organizational processes. These findings suggest concrete strategies for evaluating current capabilities to implement effective practices and foster and sustain a culture of patient safety.

Encouraging formative assessments of leadership for foundation doctors.

PubMed

Hadley, Lindsay; Black, David; Welch, Jan; Reynolds, Peter; Penlington, Clare

2015-08-01

Clinical leadership is considered essential for maintaining and improving patient care and safety in the UK, and is incorporated in the curriculum for all trainee doctors. Despite the growing focus on the importance of leadership, and the introduction of the Medical Leadership Competency Framework (MLCF) in the UK, leadership education for doctors in training is still in its infancy. Assessment is focused on clinical skills, and trainee doctors receive very little formal feedback on their leadership competencies. In this article we describe the approach taken by Health Education Kent, Sussex and Surrey (HEKSS) to raise the profile of leadership amongst doctors in training in the South Thames Foundation School (STFS). An annual structured formative assessment in leadership for each trainee has been introduced, supported by leadership education for both trainees and their supervisors in HEKSS trusts. We analysed over 500 of these assessments from the academic year 2012/13 for foundation doctors in HEKSS trusts, in order to assess the quality of the feedback. From the analysis, potential indicators of more effective formative assessments were identified. These may be helpful in improving the leadership education programme for future years. There is a wealth of evidence to highlight the importance and value of formative assessments; however, particularly for foundation doctors, these have typically been focused on assessing clinical capabilities. This HEKSS initiative encourages doctors to recognise leadership opportunities at the beginning of their careers, seeks to help them understand the importance of acquiring leadership skills and provides structured feedback to help them improve. Leadership education for doctors in training is still in its infancy. © 2015 John Wiley & Sons Ltd.

The optimization functions of ICP discharge in preparation of Cu-Zn-Sn precursors and CZTS films by co-evaporation

NASA Astrophysics Data System (ADS)

Ye, Li; Junfang, Chen; Junhui, Ma; Lifen, Zhou

2016-02-01

Cu-Zn-Sn (CZT) precursors were successfully prepared on glass substrate with the introduction of the assistant technology ICP (inductively coupled plasma) based on the conventional co-evaporation process. The deposition was performed with the substrate temperature at 220 °C and the chamber pressure at 6.5 × 10-2 Pa. Argon plasma was investigated with a Langmuir probe. The plasma density and the electron temperature increased with the increasing of the discharge power. The impact of ICP discharge power on the structural and morphological properties of the CZT film were investigated with energy dispersive X-ray spectrometers (EDS), X-ray diffraction (XRD), and scanning electron microscopy (SEM). XRD and EDS were combined to investigate the structure of the film. The results show that Zn loss exists during the evaporation and the loss can be reduced by increasing the ICP discharge power. From the observation on the scanning electron microscope, the grain size becomes larger with argon plasma's assistance. The preparation of the Cu2ZnSnS4 (CZTS) film and the measured properties demonstrate that the ICP would optimize the growth of the film. Project supported by the Natural Science Foundation of Guangdong Province, China (No. S2013010012548), the Natural Science Foundation of Guangdong Province, China (No. 10151063101000048), the Key Program of the National Natural Science Foundation of China (No. 61072028), the Guangdong Provincial Natural Science Foundation of China (No. 2014A030313441), and the Guangdong Province and Chinese Ministry of Education Cooperation Project of Industry, Education and Academy (No. 2013B090600063).

Legal and Institutional Foundations of Adaptive Environmental Governance

EPA Science Inventory

Legal and institutional structures fundamentally shape opportunities for adaptive governance of environmental resources at multiple ecological and societal scales. Properties of adaptive governance are widely studied. However, these studies have not resulted in consolidated frame...

Multiple broadband magnetoelectric response in Terfenol-D/PZT structure

NASA Astrophysics Data System (ADS)

Wen, Jian-Biao; Zhang, Juan-Juan; Gao, Yuan-Wen

2018-02-01

Not Available Project supported by the National Natural Science Foundation of China (Grant Nos. 11702120, 11372120, 11421062, and 11572143) and the Fundamental Research Funds for the Central Universities, China (Grant No. lzujbky-2016-106).

Structural biology revolution led by technical breakthroughs in cryo-electron microscopy

NASA Astrophysics Data System (ADS)

Yin, >Chang-Cheng

2018-05-01

Not Available Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0504700) and the National Natural Science Foundation of China (Grant Nos. 31570732 and 31770785).

Services Available to Visually Impaired Persons in New Zealand.

ERIC Educational Resources Information Center

LaGrow, S.; And Others

1990-01-01

The Royal New Zealand Foundation for the Blind is primarily responsible for services to visually impaired people in New Zealand. The article describes its history, structure, services, and plans for the future. (Author/JDD)

The Deformation of Overburden Soil and Interaction with Pile Foundations of Bridges Induced by Normal Faulting

NASA Astrophysics Data System (ADS)

Wu, Liang-Chun; Li, Chien-Hung; Chan, Pei-Chen; Lin, Ming-Lang

2017-04-01

According to the investigations of well-known disastrous earthquakes in recent years, ground deformation induced by faulting is one of the causes for engineering structure damages in addition to strong ground motion. Most of structures located on faulting zone has been destroyed by fault offset. Take the Norcia Earthquake in Italy (2016, Mw=6.2) as an example, the highway bridge in Arquata crossing the rupture area of the active normal fault suffered a quantity of displacement which causing abutment settlement, the piers of bridge fractured and so on. However, The Seismic Design Provisions and Commentary for Highway Bridges in Taiwan, the stating of it in the general rule of first chapter, the design in bridges crossing active fault: "This specification is not applicable of making design in bridges crossing or near active fault, that design ought to the other particular considerations ".This indicates that the safty of bridges crossing active fault are not only consider the seismic performance, the most ground deformation should be attended. In this research, to understand the failure mechanism and the deformation characteristics, we will organize the case which the bridges subjected faulting at home and abroad. The processes of research are through physical sandbox experiment and numerical simulation by discrete element models (PFC3-D). The normal fault case in Taiwan is Shanchiao Fault. As above, the research can explore the deformation in overburden soil and the influences in the foundations of bridges by normal faulting. While we can understand the behavior of foundations, we will make the bridge superstructures into two separations, simple beam and continuous beam and make a further research on the main control variables in bridges by faulting. Through the above mentioned, we can then give appropriate suggestions about planning considerations and design approaches. This research presents results from sandbox experiment and 3-D numerical analysis to simulate overburden soil and embedded pile foundations subjected to normal faulting. In order to validate this numerical model, it is compared to sandbox experiments. Since the 3-D numerical analysis corresponds to the sandbox expeiments, the response of pile foundations and ground deformation induced by normal faulting are discussed. To understand the 3-D behavior of ground deformation and pile foundations, the observation such as the triangular shear zone, the width of primary deformation zone and the inclination, displacements, of the pile foundations are discussed in experiments and simulations. Furthermore, to understand the safty of bridges crossing faulting zone. The different superstructures of bridges, simple beam and continuous beam will be discussed subsequently in simulations.

Viral metagenomics, protein structure, and reverse genetics: Key strategies for investigating coronaviruses.

PubMed

Johnson, Bryan A; Graham, Rachel L; Menachery, Vineet D

2018-04-01

Viral metagenomics, modeling of protein structure, and manipulation of viral genetics are key approaches that have laid the foundations of our understanding of coronavirus biology. In this review, we discuss the major advances each method has provided and discuss how future studies should leverage these strategies synergistically to answer novel questions. Copyright © 2017 Elsevier Inc. All rights reserved.

Governance and Management Structures for Community Partnerships: Experiences from the Robert Wood Johnson Foundation's Community Partnerships for Older Adults Program

ERIC Educational Resources Information Center

Bolda, Elise J.; Saucier, Paul; Maddux, George L.; Wetle, Terrie; Lowe, Jane Isaacs

2006-01-01

Purpose: This article describes early efforts of four community partnerships in Boston, El Paso, Houston, and Milwaukee to address governance and management structures in ways that promote the sustainability of innovative community-based long-term care system improvements. The four communities are grantees of the Community Partnerships for Older…

A Participant-Oriented, Research-Based Approach for Design of a Biochemistry Workshop for Faculty at Undergraduate Institutions

ERIC Educational Resources Information Center

Owen, Rebecca L.; Breyer, Emelita D.

2005-01-01

The Molecular Genetics and Protein Structure and Function workshop is one of a series of workshops offered by the National Science Foundation-funded Center for Workshops in the Chemical Sciences. The workshop provides a hands-on introduction to current topics and techniques in molecular genetics and protein structure/function as applied to…

Teaching Foundational Topics and Scientific Skills in Biochemistry within the Conceptual Framework of HIV Protease

ERIC Educational Resources Information Center

Johnson, R. Jeremy

2014-01-01

HIV protease has served as a model protein for understanding protein structure, enzyme kinetics, structure-based drug design, and protein evolution. Inhibitors of HIV protease are also an essential part of effective HIV/AIDS treatment and have provided great societal benefits. The broad applications for HIV protease and its inhibitors make it a…

Big Data in the Information Age: Exploring the Intellectual Foundation of Communication Theory

ERIC Educational Resources Information Center

Borkovich, Debra J.; Noah, Philip D.

2014-01-01

Big Data are structured, semi-structured, unstructured, and raw data that are revolutionizing how we think about and use information in the 21st century. Big Data represents a paradigm shift from our prior use of traditional data assets over the past 30+ years, such as numeric and textual data, to generating and accessing petabytes and beyond of…

SEGR- and SEB-hardened structure with DSPSOI in power MOSFETs

NASA Astrophysics Data System (ADS)

Tang, Zhaohuan; Fu, Xinghua; Yang, Fashun; Tan, Kaizhou; Ma, Kui; Wu, Xue; Lin, Jiexing

2017-12-01

Single event irradiation-hardened power MOSFET is the most important device for DC/DC converter in space environment application. Single event gate rupture (SEGR) and single event burnout (SEB), which will degrade the running safety and reliability of spacecraft, are the two typical failure modes in power MOSFETs. In this paper, based on recombination mechanism of interface between oxide and silicon, a novel hardened power MOSFETs structure for SEGR and SEB is proposed. The structure comprises double stagger partial silicon-on-insulator (DSPSOI) layers. Results show that the safety operation area (SOA) of a 130 V N-channel power MOSFET in single event irradiation environment is enhanced by up to 50% when the linear-energy-transfer value of heavy ion is a constant of 98 MeV·cm2/mg in the whole incident track, and the other parameters are almost maintained at the same value. Thus this novel structure can be widely used in designing single event irradiation-hardened power MOSFETs. Project supported by the National Natural Science Foundation of China (No. 61464002), the Grand Science and Technology Special Project in Guizhou Province of China (No. [2015]6006), and the Ministry of Education Open Foundation for Semiconductor Power Device Reliability (No. 010201).

Social and Population Structure in the Ant Cataglyphis emmae

PubMed Central

Jowers, Michael J.; Leniaud, Laurianne; Cerdá, Xim; Alasaad, Samer; Caut, Stephane; Amor, Fernando; Aron, Serge; Boulay, Raphaël R.

2013-01-01

Dispersal has consequences not only for individual fitness, but also for population dynamics, population genetics and species distribution. Social Hymenoptera show two contrasting colony reproductive strategies, dependent and independent colony foundation modes, and these are often associated to the population structures derived from inter and intra-population gene flow processes conditioned by alternative dispersal strategies. Here we employ microsatellite and mitochondrial markers to investigate the population and social genetic structure and dispersal patterns in the ant Cataglyphis emmae at both, local and regional scales. We find that C. emmae is monogynous and polyandrous. Lack of detection of any population viscosity and population structure with nuclear markers at the local scale suggests efficient dispersal, in agreement with a lack of inbreeding. Contrasting demographic differences before and during the mating seasons suggest that C. emmae workers raise sexuals in peripheric nest chambers to reduce intracolonial conflicts. The high genetic differentiation recovered from the mtDNA haplotypes, together with the significant correlation of such to geographic distance, and presence of new nuclear alleles between areas (valleys) suggest long-term historical isolation between these regions, indicative of limited dispersal at the regional scale. Our findings on the ecological, social and population structure of this species increases our understanding of the patterns and processes involved under independent colony foundation. PMID:24039827

Moral Foundations Predict Religious Orientations in New Zealand

PubMed Central

Bulbulia, Joseph; Osborne, Danny; Sibley, Chris G.

2013-01-01

The interplay between religion, morality, and community-making is a core theme across human experience, yet scholars have only recently begun to quantify these links. Drawing on a sample of 1512 self-identified religious – mainly Christian (86.0%) – New Zealanders, we used structural equation modeling to test hypothesized associations between Religious Orientations (Quest, Intrinsic, Extrinsic Personal, Extrinsic Social) and Moral Foundations (Care/Harm, Fairness/Cheating, Loyalty/Betrayal, Authority/Subversion, Sanctity/Degradation). Our results show, for the first time in a comprehensive model, how different ways of valuing communities are associated with different ways of valuing religion. PMID:24339872

Hypertrophic Cardiomyopathy: New Evidence Since the 2011 American Cardiology of Cardiology Foundation and American Heart Association Guideline.

PubMed

Fraiche, Ariane; Wang, Andrew

2016-07-01

Since publication of the 2011 American College of Cardiology Foundation (ACCF) and American Heart Association (AHA) Guideline for the diagnosis and treatment of hypertrophic cardiomyopathy (HCM), more recent studies offer greater insights about this condition. With increased recognition of the role of sarcomere protein mutations and myocardial structural abnormalities in the pathophysiology of this disease, new evidence offers potential improvements for the management of patients with HCM. In this review of studies published since 2011, we highlight several studies that may impact diagnostic considerations, risk stratification, and treatment of symptoms in HCM.

Probabilistic models of cognition: conceptual foundations.

PubMed

Chater, Nick; Tenenbaum, Joshua B; Yuille, Alan

2006-07-01

Remarkable progress in the mathematics and computer science of probability has led to a revolution in the scope of probabilistic models. In particular, 'sophisticated' probabilistic methods apply to structured relational systems such as graphs and grammars, of immediate relevance to the cognitive sciences. This Special Issue outlines progress in this rapidly developing field, which provides a potentially unifying perspective across a wide range of domains and levels of explanation. Here, we introduce the historical and conceptual foundations of the approach, explore how the approach relates to studies of explicit probabilistic reasoning, and give a brief overview of the field as it stands today.

Building on a solid foundation: SAR and QSAR as a fundamental strategy to reduce animal testing.

PubMed

Sullivan, K M; Manuppello, J R; Willett, C E

2014-01-01

The development of more efficient, ethical, and effective means of assessing the effects of chemicals on human health and the environment was a lifetime goal of Gilman Veith. His work has provided the foundation for the use of chemical structure for informing toxicological assessment by regulatory agencies the world over. Veith's scientific work influenced the early development of the SAR models in use today at the US Environmental Protection Agency. He was the driving force behind the Organisation for Economic Co-operation and Development QSAR Toolbox. Veith was one of a few early pioneers whose vision led to the linkage of chemical structure and biological activity as a means of predicting adverse apical outcomes (known as a mode of action, or an adverse outcome pathway approach), and he understood at an early stage the power that could be harnessed when combining computational and mechanistic biological approaches as a means of avoiding animal testing. Through the International QSAR Foundation he organized like-minded experts to develop non-animal methods and frameworks for the assessment of chemical hazard and risk for the benefit of public and environmental health. Avoiding animal testing was Gil's passion, and his work helped to initiate the paradigm shift in toxicology that is now rendering this feasible.

A diffusion model for solute atoms diffusing and aggregating in nuclear structural materials

NASA Astrophysics Data System (ADS)

Song, Quan; Meng, Fan-Xin; Ning, Bo-Yuan; Zhuang, Jun; Ning, Xi-Jing

2017-12-01

Not Available Project supported by the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20130071110018) and the National Natural Science Foundation of China (Grant No. 11274073).

On metaheuristic "failure modes": a case study in Tabu search for job-shop scheduling.

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

Watson, Jean-Paul

2005-06-01

In this paper, we analyze the relationship between pool maintenance schemes, long-term memory mechanisms, and search space structure, with the goal of placing metaheuristic design on a more concrete foundation.

Multiple Approaches to Design Education

ERIC Educational Resources Information Center

Fox, Richard L.; And Others

1974-01-01

Discusses implementation of Sloan Foundation projects at the Case Western School of Engineering, including the development of a computer assisted mechanical structural design course, the establishment of a complex systems laboratory, and personnel views of industry-university design projects. (CC)

Minimizing the effects of pile driving vibrations : research spotlight.

DOT National Transportation Integrated Search

2013-11-01

Engineers must take care that the vibrations from pile driving : operations during bridge construction do not damage underground : utilities or cause settlement in the foundations of nearby structures. : In this project, researchers developed a simpl...

Behavior of drilled shafts with high-strength reinforcement and casing.

DOT National Transportation Integrated Search

2015-09-01

Drilled shafts provide significant geotechnical resistance for support of highway bridges, and are used throughout the States of Oregon : and Washington to meet their structural foundation requirements. Due to changes in construction methods and poor...

Assessment, Change, and Complexity.

ERIC Educational Resources Information Center

Salem, Philip

2002-01-01

Describes three types of communication assessment: structural assessment; functional assessment; and process assessment. Contends that these traditional approaches are inappropriate for assessing organizational change. Proposes that complexity theory explicitly focuses on evolutionary processes and thus is a more appropriate foundation for…

Contents of Structures to Resist the Effects of Accidental Explosions (TM 5-1300, NAVFAC P-397, AFM 22)

DTIC Science & Technology

1986-08-01

walls of various support conditions, as well as design procedures and deflection criteria for beams and both interior and exterior columns . The... columns of shear wall type structures are generally designed as beams . 159 The structural design for brittle mode response contains most of the data...flat slabs, beams , columns and foundations. 1OUNE V - STUCTRMAL STEEL DESIME This volume covers detailed procedures and design techniques for the blast

Diffusion of innovation: the leaders' role in creating the organizational context for evidence-based practice.

PubMed

Crow, Gregory

2006-01-01

Successfully leading change represents one of the most, if not the most, challenging aspects of a leader's role. The traditional top-down command and control structures and processes present in healthcare institutions and nursing are the enemies of effective change. Transitioning from traditional structures to structures that are more of a partnership between point-of-service staff and administrators is the foundation for creating an evidence-based practice culture.

Structural health monitoring system of soccer arena based on optical sensors

NASA Astrophysics Data System (ADS)

Shishkin, Victor V.; Churin, Alexey E.; Kharenko, Denis S.; Zheleznova, Maria A.; Shelemba, Ivan S.

2014-05-01

A structural health monitoring system based on optical sensors has been developed and installed on the indoor soccer arena "Zarya" in Novosibirsk. The system integrates 119 fiber optic sensors: 85 strain, 32 temperature and 2 displacement sensors. In addition, total station is used for measuring displacement in 45 control points. All of the constituents of the supporting structure are subjects for monitoring: long-span frames with under floor ties, connections, purlins and foundation.

Mechanical design of DNA nanostructures

NASA Astrophysics Data System (ADS)

Castro, Carlos E.; Su, Hai-Jun; Marras, Alexander E.; Zhou, Lifeng; Johnson, Joshua

2015-03-01

Structural DNA nanotechnology is a rapidly emerging field that has demonstrated great potential for applications such as single molecule sensing, drug delivery, and templating molecular components. As the applications of DNA nanotechnology expand, a consideration of their mechanical behavior is becoming essential to understand how these structures will respond to physical interactions. This review considers three major avenues of recent progress in this area: (1) measuring and designing mechanical properties of DNA nanostructures, (2) designing complex nanostructures based on imposed mechanical stresses, and (3) designing and controlling structurally dynamic nanostructures. This work has laid the foundation for mechanically active nanomachines that can generate, transmit, and respond to physical cues in molecular systems.Structural DNA nanotechnology is a rapidly emerging field that has demonstrated great potential for applications such as single molecule sensing, drug delivery, and templating molecular components. As the applications of DNA nanotechnology expand, a consideration of their mechanical behavior is becoming essential to understand how these structures will respond to physical interactions. This review considers three major avenues of recent progress in this area: (1) measuring and designing mechanical properties of DNA nanostructures, (2) designing complex nanostructures based on imposed mechanical stresses, and (3) designing and controlling structurally dynamic nanostructures. This work has laid the foundation for mechanically active nanomachines that can generate, transmit, and respond to physical cues in molecular systems. Electronic supplementary information (ESI) available. See DOI: 10.1039/c4nr07153k

Molecular dynamics simulations: advances and applications

PubMed Central

Hospital, Adam; Goñi, Josep Ramon; Orozco, Modesto; Gelpí, Josep L

2015-01-01

Molecular dynamics simulations have evolved into a mature technique that can be used effectively to understand macromolecular structure-to-function relationships. Present simulation times are close to biologically relevant ones. Information gathered about the dynamic properties of macromolecules is rich enough to shift the usual paradigm of structural bioinformatics from studying single structures to analyze conformational ensembles. Here, we describe the foundations of molecular dynamics and the improvements made in the direction of getting such ensemble. Specific application of the technique to three main issues (allosteric regulation, docking, and structure refinement) is discussed. PMID:26604800

Assessment and mitigation of liquefaction hazards to bridge approach embankments in Oregon : final report.

DOT National Transportation Integrated Search

2002-11-01

The seismic performance of bridge structures and appurtenant components (i.e., approach spans, abutments and foundations) has been well documented following recent earthquakes worldwide. This experience demonstrates that bridges are highly vulnerable...

Durability performance of submerged concrete structures - phase 2 : [summary].

DOT National Transportation Integrated Search

2015-10-01

Thousands of Florida bridges have steel-reinforced concrete piling foundations standing : in salt water. Over time, chloride ions in the water can migrate through the concrete to : attack the steel inside. The Florida Department of Transportation (FD...

22 CFR 1510.103 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... Relations AFRICAN DEVELOPMENT FOUNDATION ENFORCEMENT OF NONDISCRIMINATION ON THE BASIS OF HANDICAP IN... any portion of buildings, structures, equipment, roads, walks, parking lots, rolling stock or other... body. Individual with handicaps means any person who has a physical or mental impairment that...

22 CFR 1510.103 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... Relations AFRICAN DEVELOPMENT FOUNDATION ENFORCEMENT OF NONDISCRIMINATION ON THE BASIS OF HANDICAP IN... any portion of buildings, structures, equipment, roads, walks, parking lots, rolling stock or other... body. Individual with handicaps means any person who has a physical or mental impairment that...

Developing a bridge scour warning system : technical summary.

DOT National Transportation Integrated Search

2016-09-01

Flooding and scour can be major threats to the integrity of bridges. During flood events, : scour at bridge piers and abutments can undermine the foundations of the bridge, causing : significant damage or even total structure loss. Because scour occu...

Developing a bridge scour warning system : final report.

DOT National Transportation Integrated Search

2016-09-01

Flooding and scour can be major threats to the integrity of bridges. During flood events, scour at bridge piers : and abutments can undermine the foundations of the bridge, causing significant damage or even total structure loss. : Because scour occu...

Field testing of jet-grouted pile : [summary].

DOT National Transportation Integrated Search

2014-01-01

In many areas of Florida, local geology dictates the use of deep foundations for transportation structures bridges, noise walls, signage, etc. When concrete piles are used, they are either prestressed at the casting yard, cast in situ through a h...

Electronic Structures and Adsorption of Li-Doped Graphenes for CO

NASA Astrophysics Data System (ADS)

Liu, Xiao-Juan; Cao, Wen-Qiang; Huang, Zi-Han; Yuan, Jie; Fang, Xiao-Yong; Cao, Mao-Sheng

2015-03-01

Not Available Supported by the National Natural Science Foundation of China under Grant Nos 51372282, 51072024 and 51132002, and the National College Students' Innovative and Entrepreneurial Training Program of Beijing Institute of Technology under Grant No 201410007050.

Structural and electrical properties of reactive magnetron sputtered yttrium-doped HfO 2 films

NASA Astrophysics Data System (ADS)

Zhang, Yu; Xu, Jun; Zhou, Da-Yu; Wang, Hang-Hang; Lu, Wen-Qi; Choi, Chi-Kyu

2018-04-01

Not Available Project supported by the National Natural Science Foundation of China (Grant Nos. 51272034 and 51672032) and the Fundamental Research Funds for the Central Universities, China (Grant No. DUT17ZD211).

Effects of alloying element on stabilities, electronic structures, and mechanical properties of Pd-based superalloys

NASA Astrophysics Data System (ADS)

Yan, Pei; Chong, Xiao-Yu; Jiang, Ye-Hua; Feng, Jing

2017-12-01

Not Available Project supported by the Young-Talent Support Programs of Kunming University of Science and Technology, China (Grant No. 11504146) and the National Natural Science Foundation of China (Grant No. 51762028).

50 ksi steel h-pile capacity.

DOT National Transportation Integrated Search

2015-06-01

The objective of this study is to re-evaluate the adoption, with the objective of potentially extending the utilization of Fy = 50 ksi for : the structural capacity of steel H-piles (AISC HP sections) for bridge foundations. Specific consideration is...

Numerical Modeling of Sliding Stability of RCC dam

NASA Astrophysics Data System (ADS)

Mughieda, O.; Hazirbaba, K.; Bani-Hani, K.; Daoud, W.

2017-06-01

Stability and stress analyses are the most important elements that require rigorous consideration in design of a dam structure. Stability of dams against sliding is crucial due to the substantial horizontal load that requires sufficient and safe resistance to develop by mobilization of adequate shearing forces along the base of the dam foundation. In the current research, the static sliding stability of a roller-compacted-concrete (RCC) dam was modelled using finite element method to investigate the stability against sliding. A commercially available finite element software (SAP 2000) was used to analyze stresses in the body of the dam and foundation. A linear finite element static analysis was performed in which a linear plane strain isoperimetric four node elements was used for modelling the dam-foundation system. The analysis was carried out assuming that no slip will occur at the interface between the dam and the foundation. Usual static loading condition was applied for the static analysis. The greatest tension was found to develop in the rock adjacent to the toe of the upstream slope. The factor of safety against sliding along the entire base of the dam was found to be greater than 1 (FS>1), for static loading conditions.

Design and performance verification of UHPC piles for deep foundations.

DOT National Transportation Integrated Search

2008-11-01

The strategic plan for bridge engineering issued by AASHTO in 2005 identified extending the service life and optimizing structural : systems of bridges in the United States as two grand challenges in bridge engineering, with the objective of producin...

State Governance Action Report, 2007

ERIC Educational Resources Information Center

Association of Governing Boards of Universities and Colleges, 2007

2007-01-01

This paper presents the State Governance Action Report for 2007. Compiled in this report are state policy developments, including legislation, commissions, and studies, affecting the structure, responsibilities, and operations of public higher education governing boards and institutionally related foundations. Governance and governance-related…

Design of inclined loaded drilled shafts in high-plasticity clay environment.

DOT National Transportation Integrated Search

2011-05-01

Drilled shaft foundations are principally used to support many structures such as bridge piers, towers, : buildings, transmission towers, and roadway cable barriers. This research focuses on the use of drilled shafts : in the cable median barrier sys...

Anchor Bolt Behavior in ASR/DEF-Damaged Drilled Shafts.

DOT National Transportation Integrated Search

2007-02-01

The primary objective of this research is to evaluate the effect of Alkali-Silica Reaction (ASR) and Delayed Ettringite Formation (DEF) on the structural performance of High Mast Illumination Pole (HMIP) foundations and if needed, to recommend a poss...

Shear design expressions for concrete filled steel tube and reinforced concrete filled tube components.

DOT National Transportation Integrated Search

2016-06-01

Concrete-filled steel tubes (CFSTs) and reinforced concrete-filled steel tubes (RCFSTs) are increasingly : used in transportation structures as piers, piles, caissons or other foundation components. While the axial : and flexural properties of CFTs h...

Steel shear strength of anchors with stand-off base plates.

DOT National Transportation Integrated Search

2013-09-01

Sign and signal structures are often connected to concrete foundations through a stand-off annular base plate with a double-nut anchor bolt connection, which leaves exposed anchor bolt lengths below leveling nuts used in these connections. Cantilever...

Seasonal frost effects on the dynamic behavior of a twenty-story office building

USGS Publications Warehouse

Yang, Z.; Dutta, U.; Xiong, F.; Biswas, N.; Benz, H.

2008-01-01

Studies have shown that seasonal frost can significantly affect the seismic behavior of a bridge foundation system in cold regions. However, little information could be found regarding seasonal frost effects on the dynamic behavior of buildings. Based on the analysis of building vibration data recorded by a permanent strong-motion instrumentation system, the objective of this paper is to show that seasonal frost can impact the building dynamic behavior and the magnitude of impact may be different for different structures. Ambient noise and seismic data recorded on a twenty-story steel-frame building have been analyzed to examine the building dynamic characteristics in relationship to the seasonal frost and other variables including ground shaking intensity. Subsequently, Finite Element modeling of the foundation-soil system and the building superstructure was conducted to verify the seasonal frost effects. The Finite Element modeling was later extended to a reinforced-concrete (RC) type building assumed to exist at a similar site as the steel-frame building. Results show that the seasonal frost has great impact on the foundation stiffness in the horizontal direction and a clear influence on the building dynamic behavior. If other conditions remain the same, the effects of seasonal frost on structural dynamic behavior may be much more prominent for RC-type buildings than for steel-frame buildings. ?? 2007 Elsevier B.V. All rights reserved.

A Few Discrete Lattice Systems and Their Hamiltonian Structures, Conservation Laws

NASA Astrophysics Data System (ADS)

Guo, Xiu-Rong; Zhang, Yu-Feng; Zhang, Xiang-Zhi; Yue, Rong

2017-04-01

With the help of three shift operators and r-matrix theory, a few discrete lattice systems are obtained which can be reduced to the well-known Toda lattice equation with a constraint whose Hamiltonian structures are generated by Poisson tensors of some induced Lie-Poisson bracket. The recursion operators of these lattice systems are constructed starting from Lax representations. Finally, reducing the given shift operators to get a simpler one and its expanding shift operators, we produce a lattice system with three vector fields whose recursion operator is given. Furthermore, we reduce the lattice system with three vector fields to get a lattice system whose Lax pair and conservation laws are obtained, respectively. Supported by the National Natural Science Foundation of China under Grant No. 11371361, the Innovation Team of Jiangsu Province Hosted by China University of Mining and Technology (2014), the the Key Discipline Construction by China University of Mining and Technology under Grant No. XZD201602, the Shandong Provincial Natural Science Foundation, China under Grant Nos. ZR2016AM31, ZR2016AQ19, ZR2015EM042, the Development of Science and Technology Plan Projects of TaiAn City under Grant No. 2015NS1048, National Social Science Foundation of China under Grant No. 13BJY026, and A Project of Shandong Province Higher Educational Science and Technology Program under Grant No. J14LI58

Earthquake Response of Concrete Gravity Dams Including Hydrodynamic and Foundation Interaction Effects,

DTIC Science & Technology

1980-01-01

standard procedure for Analysis of all types of civil engineering struc- tures. Early in its development, it became apparent that this method had...unique potentialities in the evaluation of stress in dams, and many of its earliest civil engineering applications concerned special problems associated...with such structures [3,4]. The earliest dynamic finite element analyses of civil engineering structures involved the earthquake response analysis of

Guided Bone Regeneration in Long-Bone Defects with a Structural Hydroxyapatite Graft and Collagen Membrane

DTIC Science & Technology

2013-01-01

Praetorius, F. Guided tissue regeneration using de- gradable and nondegradable membranes in rabbit tibia. Clin Oral Implants Res 4, 172, 1993. 8. Queiroz... Regeneration of periodontal tissues : combinations of barrier membranes and grafting materials–biological foundation and preclinical evi- dence: a...structural graft provides benefits for bone tissue regeneration in terms of early interfacial integration. Introduction The treatment of large-bone defects

Methodological Foundations for Designing Intelligent Computer-Based Training

DTIC Science & Technology

1991-09-03

student models, graphic forms, version control data structures, flowcharts , etc. Circuit simulations are an obvious case. A circuit, after all, can... flowcharts as a basic data structure, and we were able to generalize our tools to create a flowchart drawing tool for inputting both the appearance and...the meaning of flowcharts efficiently. For the Sherlock work, we built a tool that permitted inputting of information about front panels and

Divergent population genetic structure of the endangered Helianthemum (Cistaceae) and its implication to conservation in northwestern China

Treesearch

Zhihao Su; Bryce A. Richardson; Li Zhuo; Xiaolong Jiang

2017-01-01

Population genetic studies provide a foundation for conservation planning, especially for endangered species. Three chloroplast SSRs (mtrnSf-trnGr, mtrnL2-trnF, and mtrnL5-trnL3) and the internal transcribed spacer were used to examine the population structure of Helianthemum in northwestern China. A total of 15 populations of the genus were collected. Nine chloroplast...

The Shock and Vibration Digest. Volume 16, Number 6

DTIC Science & Technology

1984-06-01

formulation is emphasized. Tabarrok [5] used both fluid variables to construct dual variational principles; these can be used as the basis for...Metal Working and Forming 37 STRUCTURAL SYSTEMS 39 Buildings 39 Towers 39 Foundations 40 Harbors and Dams 40 Roads and Tracks 41 Construction ...under the fating. Assuming that the super-structure is composed of idertically constructed story-units and the soil behavior is characterized by a

Experimental sensitivity analysis of subsoil-slab behaviour regarding degree of fibre-concrete slab reinforcement

NASA Astrophysics Data System (ADS)

Hrubesova, E.; Lahuta, H.; Mohyla, M.; Quang, T. B.; Phi, N. D.

2018-04-01

The paper is focused on the sensitivity analysis of behaviour of the subsoil – foundation system as regards the variant properties of fibre-concrete slab resulting into different relative stiffness of the whole cooperating system. The character of slab and its properties are very important for the character of external load transfer, but the character of subsoil cannot be neglected either because it determines the stress-strain behaviour of the all system and consequently the bearing capacity of structure. The sensitivity analysis was carried out based on experimental results, which include both the stress values in soil below the foundation structure and settlements of structure, characterized by different quantity of fibres in it. Flat dynamometers GEOKON were used for the stress measurements below the observed slab, the strains inside slab were registered by tensometers, the settlements were monitored geodetically. The paper is focused on the comparison of soil stresses below the slab for different quantity of fibres in structure. The results obtained from the experimental stand can contribute to more objective knowledge of soil – slab interaction, to the evaluation of real carrying capacity of the slab, to the calibration of corresponding numerical models, to the optimization of quantity of fibres in the slab, and finally, to higher safety and more economical design of slab.

Institutional change to support regime transformation: Lessons from Australia's water sector

NASA Astrophysics Data System (ADS)

Werbeloff, Lara; Brown, Rebekah; Cocklin, Chris

2017-07-01

Institutional change is fundamental to regime transformation, and a necessary part of moving toward integrated water management. However, insight into the role of institutional change processes in such transitions is currently limited. A more nuanced understanding of institutional frameworks is necessary, both to advance understanding of institutional change in the context of transitions toward improved water management and to inform strategies for guiding such processes. To this end, we examine two contemporary cases of transformative change in Australia's urban water sector, exploring the evolution of institutional change in each city. This paper offers insights into regime transformation, providing guidance on types of institutional structures and the ways structure-change initiatives can be sequenced to support a transition. The results reveal the importance of regulation in embedding regime change and suggest that engagement with structural frameworks should begin early in transition processes to ensure the timely introduction of supporting regulation. Our findings also highlight the inextricable link between culture-based and structure-based change initiatives, and the importance of using a diverse range of institutional change mechanisms in a mutually reinforcing way to provide a strong foundation for change. These findings provide a foundation for further scholarly examination of institutional change mechanisms, while also serving to inform the strategic activities of transition-oriented organizations and actors.

Excavationless Exterior Foundation Insulation Field Study

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

Schirber, T.; Mosiman, G.; Ojczyk, C.

Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with a liquidmore » insulating foam. The team was able to excavate a continuous 4" wide by 4' to 5' deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.« less

Excavationless Exterior Foundation Insulation Field Study

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

Schirber, T.; Mosiman, G.; Ojczyk, C.

Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with liquid insulatingmore » foam. The team was able to excavate a continuous 4 inches wide by 4 feet to 5 feet deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.« less

Evaluation of design methods to determine scour depths for bridge structures : [technical summary].

DOT National Transportation Integrated Search

2013-01-01

Scour of bridge foundations is the most common cause of bridge failures. The Federal Highway Administration : (FHWA) has developed a design method, HEC-18, for the state Departments of Transportation (DOTs) to evaluate : the scour potential of existi...

The 1978 National Fire-Danger Rating System: technical documentation

Treesearch

Larry S. Bradshaw; John E. Deeming; Robert E. Burgan; Jack D. Cohen

1984-01-01

The National Fire-Danger Rating System (NFDRS), implemented in 1972, has been revised and reissued as the 1978 NFDRS. This report describes the full developmental history of the NFDRS, including purpose, technical foundation, and structure. Includes an extensive bibliography and appendixes.

A Model for Analyzing Disability Policy

ERIC Educational Resources Information Center

Turnbull, Rud; Stowe, Matthew J.

2017-01-01

This article describes a 12-step model that can be used for policy analysis. The model encompasses policy development, implementation, and evaluation; takes into account structural foundations of policy; addresses both legal formalism and legal realism; demonstrates contextual sensitivity; and addresses application issues and different…

Defining the upper viscosity limit for mineral slurries used in drilled shaft construction : [summary].

DOT National Transportation Integrated Search

2014-02-01

Many structures built on Floridas variable, sandy : soils require deep foundations, such as pilings. : Although pilings may be more familiar, drilled : shafts are also often used. Drilled shafts require : less expensive equipment and create less o...

The New English.

ERIC Educational Resources Information Center

O'Donnell, John F.

1968-01-01

Traditional English curriculums are giving way to new English programs built on the foundations of research and scholarship. The "new" English, being developed by the Project English Centers throughout the country, attempts to utilize the characteristic structure of the subject to plan sequential and spiral curriculums replacing outdated…

22 CFR 1005.103 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... Relations INTER-AMERICAN FOUNDATION ENFORCEMENT OF NONDISCRIMINATION ON THE BASIS OF HANDICAP IN PROGRAMS OR... any portion of buildings, structures, equipment, roads, walks, parking lots, rolling stock or other conveyances, or other real or personal property. Handicapped person means any person who has a physical or...

22 CFR 1005.103 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... Relations INTER-AMERICAN FOUNDATION ENFORCEMENT OF NONDISCRIMINATION ON THE BASIS OF HANDICAP IN PROGRAMS OR... any portion of buildings, structures, equipment, roads, walks, parking lots, rolling stock or other conveyances, or other real or personal property. Handicapped person means any person who has a physical or...

Structural Phase Transition and a Mutation of Electron Mobility in Zn x Cd1‑x O Alloys

NASA Astrophysics Data System (ADS)

Zhang, Ya-Wei; Yang, Kai-Ke; Deng, Hui-Xiong

2018-05-01

Not Available Supported by the National Natural Science Foundation of China under Grant Nos 11474273 and 11634003, and the Youth Innovation Promotion Association of Chinese Academy of Sciences under Grant No 2017154.

Embedded data collector (EDC) evaluation, phase II - comparison with instrumented static load tests : [technical summary].

DOT National Transportation Integrated Search

2013-12-01

Monitoring installation of driven pile foundations : is critically important to ensure adequate safety : of structures with piles, such as the many bridges : which are maintained by the Florida Department : of Transportation (FDOT). Dynamic load test...

Evaluation of design methods to determine scour depths for bridge structures.

DOT National Transportation Integrated Search

2013-03-01

Scour of bridge foundations is the most common cause of bridge failures. The overall goal of this project was to evaluate the applicability of the existing Hydraulic Engineering Circular (HEC-18) documents method to Louisiana bridges that are mostly ...

Diurnal cooling for continuous thermal sources under direct subtropical sunlight produced by quasi-Cantor structure

NASA Astrophysics Data System (ADS)

Wu, Jia-Ye; Gong, Yuan-Zhi; Huang, Pei-Ran; Ma, Gen-Jun; Dai, Qiao-Feng

2017-09-01

Not Available Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2016A030313851) and the Provincial Undergraduate Training Program for Innovation and Entrepreneurship of Guangdong Province, China (Grant No. 201610574149).

36 CFR 292.16 - Standards.

Code of Federal Regulations, 2012 CFR

2012-07-01

..., roads, and similar facilities or improvements. Any such necessary encroachment will avoid impeding water...) No excavation or topographic change, except that required for foundations, utilities, or roads, that...) Paints or stains to be of earth tones common to the area. (xv) All buildings and structures, including...

36 CFR 292.16 - Standards.

Code of Federal Regulations, 2013 CFR

2013-07-01

..., roads, and similar facilities or improvements. Any such necessary encroachment will avoid impeding water...) No excavation or topographic change, except that required for foundations, utilities, or roads, that...) Paints or stains to be of earth tones common to the area. (xv) All buildings and structures, including...

36 CFR 292.16 - Standards.

Code of Federal Regulations, 2014 CFR

2014-07-01

..., roads, and similar facilities or improvements. Any such necessary encroachment will avoid impeding water...) No excavation or topographic change, except that required for foundations, utilities, or roads, that...) Paints or stains to be of earth tones common to the area. (xv) All buildings and structures, including...

Organizational Assessment of Shelter Outreach Plus

DTIC Science & Technology

2003-12-01

and 11 staff members to generate an organizational diagnosis using systems theory as a foundation for improvements. A strategic planning session was...structured interviews were conducted with four Board members and 11 staff members to generate an organizational diagnosis using systems theory as a

Semiannual Report: Oct 1, 2000 - Mar 31, 2001

EPA Pesticide Factsheets

Semiannual Report #EPA-350-K-01-001, May, 2001. Our new structure provides a solid foundation for the OIG's efforts to continuously improve its performance, and I am certain that it will greatly enhance our ability to be agents of positive change.

Four Step Model for Experiential Counseling.

ERIC Educational Resources Information Center

Long, Vonda; Scherer, David

As experiential counseling gains wider acceptance, it becomes more important to operate from a structural framework promoting effective and ethical practices. This paper outlines a four-part model of experiential counseling: theoretical foundations, experiential activity and personnel, processing and communication skills, and prerequisites for…

Robust Fixed-Structure Control

DTIC Science & Technology

1994-10-30

Deterministic Foundation for Statistical Energy Analysis ," J. Sound Vibr., to appear. 1.96 D. S. Bernstein and S. P. Bhat, "Lyapunov Stability, Semistability...S. Bernstein, "Power Flow, Energy Balance, and Statistical Energy Analysis for Large Scale, Interconnected Systems," Proc. Amer. Contr. Conf., pp

Successful Strategies for Capital Campaigns

ERIC Educational Resources Information Center

Grover, Stuart R.

2007-01-01

Twenty five years ago, few community or technical colleges considered launching capital campaigns. They lacked community standing, professional fundraising staff, and the related institutional foundation structure to manage charitable efforts. Gradually, as public funding eroded, bond issues became harder to pass, and colleges recognized the need…

A Corner-Point-Grid-Based Voxelization Method for Complex Geological Structure Model with Folds

NASA Astrophysics Data System (ADS)

Chen, Qiyu; Mariethoz, Gregoire; Liu, Gang

2017-04-01

3D voxelization is the foundation of geological property modeling, and is also an effective approach to realize the 3D visualization of the heterogeneous attributes in geological structures. The corner-point grid is a representative data model among all voxel models, and is a structured grid type that is widely applied at present. When carrying out subdivision for complex geological structure model with folds, we should fully consider its structural morphology and bedding features to make the generated voxels keep its original morphology. And on the basis of which, they can depict the detailed bedding features and the spatial heterogeneity of the internal attributes. In order to solve the shortage of the existing technologies, this work puts forward a corner-point-grid-based voxelization method for complex geological structure model with folds. We have realized the fast conversion from the 3D geological structure model to the fine voxel model according to the rule of isocline in Ramsay's fold classification. In addition, the voxel model conforms to the spatial features of folds, pinch-out and other complex geological structures, and the voxels of the laminas inside a fold accords with the result of geological sedimentation and tectonic movement. This will provide a carrier and model foundation for the subsequent attribute assignment as well as the quantitative analysis and evaluation based on the spatial voxels. Ultimately, we use examples and the contrastive analysis between the examples and the Ramsay's description of isoclines to discuss the effectiveness and advantages of the method proposed in this work when dealing with the voxelization of 3D geologic structural model with folds based on corner-point grids.

Foundational concepts and underlying theories for majors in "biochemistry and molecular biology".

PubMed

Tansey, John T; Baird, Teaster; Cox, Michael M; Fox, Kristin M; Knight, Jennifer; Sears, Duane; Bell, Ellis

2013-01-01

Over the past two years, through an NSF RCN UBE grant, the ASBMB has held regional workshops for faculty members and science educators from around the country that focused on identifying: 1) core principles of biochemistry and molecular biology, 2) essential concepts and underlying theories from physics, chemistry, and mathematics, and 3) foundational skills that undergraduate majors in biochemistry and molecular biology must understand to complete their major coursework. Using information gained from these workshops, as well as from the ASBMB accreditation working group and the NSF Vision and Change report, the Core Concepts working group has developed a consensus list of learning outcomes and objectives based on five foundational concepts (evolution, matter and energy transformation, homeostasis, information flow, and macromolecular structure and function) that represent the expected conceptual knowledge base for undergraduate degrees in biochemistry and molecular biology. This consensus will aid biochemistry and molecular biology educators in the development of assessment tools for the new ASBMB recommended curriculum. © 2013 by The International Union of Biochemistry and Molecular Biology.

Our Cannibalistic Galaxy

NASA Astrophysics Data System (ADS)

Majewski, S. R.

2004-12-01

It is now evident that our Milky Way has cannibalistic tendencies. Recently found examples of satellite star systems being digested by our galaxy demonstrate that Milky Way-like spiral galaxies continue to grow through the piecemeal accumulation of mass from smaller neighbors, as predicted by Cold Dark Matter (CDM) models of structure formation. Cross-sections of the Milky Way halo reveal it to be networked with long-lived, coherent debris streams of stars and star clusters that attest to its accretive formation. These dynamically cold streams, created from the tidal disruption of satellite star systems, in turn provide useful tools to explore both the nature of Galactic dwarf satellites as well as the the dark matter distribution of the Milky Way; the results of such work, however, yield some unexpected results compared to current CDM models. (Research described has been supported by NASA/JPL, the National Science Foundation, The David and Lucile Packard Foundation, the Research Corporation, and the F.H. Levinson Fund of the Peninsula Community Foundation.)

Renovating the Pyramid of Needs: Contemporary Extensions Built Upon Ancient Foundations.

PubMed

Kenrick, Douglas T; Griskevicius, Vladas; Neuberg, Steven L; Schaller, Mark

2010-05-01

Maslow's pyramid of human needs, proposed in 1943, has been one of the most cognitively contagious ideas in the behavioral sciences. Anticipating later evolutionary views of human motivation and cognition, Maslow viewed human motives as based in innate and universal predispositions. We revisit the idea of a motivational hierarchy in light of theoretical developments at the interface of evolutionary biology, anthropology, and psychology. After considering motives at three different levels of analysis, we argue that the basic foundational structure of the pyramid is worth preserving, but that it should be buttressed with a few architectural extensions. By adding a contemporary design feature, connections between fundamental motives and immediate situational threats and opportunities should be highlighted. By incorporating a classical element, these connections can be strengthened by anchoring the hierarchy of human motives more firmly in the bedrock of modern evolutionary theory. We propose a renovated hierarchy of fundamental motives that serves as both an integrative framework and a generative foundation for future empirical research. © The Author(s) 2010.

Establishing a health promotion and development foundation in South Africa.

PubMed

Perez, A M; Ayo-Yusuf, O A; Hofman, K; Kalideen, S; Maker, A; Mokonoto, D; Morojele, N; Naidoo, P; Parry, C D H; Rendall-Mkosi, K; Saloojee, Y

2013-01-14

South Africa has a 'quadruple burden of disease'. One way to reduce this burden, and address the social determinants of health and social inequity, could be through health promotion interventions driven by an independent Health Promotion and Development Foundation (HPDF). This could provide a framework to integrate health promotion and social development into all government and civil society programmes. On priority issues, the HPDF would mobilise resources, allocate funding, develop capacity, and monitor and evaluate health promotion and development work. Emphasis would be on reducing the effects of poverty, inequity and unequal development on disease rates and wellbeing. The HPDF could also decrease the burden on the proposed National Health Insurance (NHI) system. We reflect on such foundations in other countries, and propose a structure for South Africa's HPDF and a dedicated funding stream to support its activities. In particular, an additional 2% levy on alcohol and tobacco products is proposed to be utilised to fund the HPDF.

Renovating the Pyramid of Needs: Contemporary Extensions Built Upon Ancient Foundations

PubMed Central

Kenrick, Douglas T.; Griskevicius, Vladas; Neuberg, Steven L.; Schaller, Mark

2011-01-01

Maslow’s pyramid of human needs, proposed in 1943, has been one of the most cognitively contagious ideas in the behavioral sciences. Anticipating later evolutionary views of human motivation and cognition, Maslow viewed human motives as based in innate and universal predispositions. We revisit the idea of a motivational hierarchy in light of theoretical developments at the interface of evolutionary biology, anthropology, and psychology. After considering motives at three different levels of analysis, we argue that the basic foundational structure of the pyramid is worth preserving, but that it should be buttressed with a few architectural extensions. By adding a contemporary design feature, connections between fundamental motives and immediate situational threats and opportunities should be highlighted. By incorporating a classical element, these connections can be strengthened by anchoring the hierarchy of human motives more firmly in the bedrock of modern evolutionary theory. We propose a renovated hierarchy of fundamental motives that serves as both an integrative framework and a generative foundation for future empirical research. PMID:21874133

A subwavelength metal-grating assisted sensor of Kretschmann style for investigating the sample with high refractive index

NASA Astrophysics Data System (ADS)

Xu-Feng, Li; Wei, Peng; Ya-Li, Zhao; Qiao, Wang; Ji-Lin, Wei

2016-03-01

In this paper, a subwavelength metal-grating assisted sensor of Kretschmann style that is capable of detecting the sample with a refractive index higher than that of the substrate is proposed. The sensor configuration is similar to the traditional Kretschmann structure, but the metal film is pattered into a grating. As a TM-polarized laser beam impinges from the substrate, a resonant dip point in reflectance curve is produced at a certain incident angle. Our studies indicate that the sensing sensitivity and resolution are affected by the grating’s gap and period, and after these parameters have been optimized, a sensing sensitivity of 51.484°/RIU is obtained with a slightly changing resolution. Project supported by the National Natural Science Foundation of China (Grant Nos. 61137005 and 61178067), the Science Foundation of Shanxi Province, China (Grant No. 2013021004-3/2014021021-1), the Pre-studied Project on Weapon Equipment, China (Grant No. 201262401090404), and the Specialized Research Foundation for Doctor of School, China (Grant No. 20122027).

Microscopic theory of vortex interaction in two-band superconductors and type-1.5 superconductivity

NASA Astrophysics Data System (ADS)

Silaev, Mihail; Babaev, Egor

2011-03-01

In the framework of self-consistent microscopic theory we study the structure and interaction of vortices in two-gap superconductor taking into account the interband Josephson coupling. The asymptotical behavior of order parameter densities and magnetic field is studied analytically within the microscopic theory at low temperature. At higher temperatures, results consistent with Ginzburg-Landau theory are obtained. It is shown that under quite general conditions and in a wide temperature ranges (in particular outside the validity of the Ginzburg-Landau theory) there can exist an additional characteristic length scale of the order parameter density variation which exceeds the London penetration length of magnetic field due to the multi-component nature of superconducting state. Such behavior of order parameter density variation leads to the attractive long-range and repulsive short-range interaction between vortices. Supported by NSF CAREER Award DMR-0955902, Knut and Alice Wallenberg Foundation through the Royal Swedish Academy of Sciences and Swedish Research Council, ''Dynasty'' foundation and Russian Foundation for Basic Research.

An industrial educational laboratory at Ducati Foundation: narrative approaches to mechanics based upon continuum physics

NASA Astrophysics Data System (ADS)

Corni, Federico; Fuchs, Hans U.; Savino, Giovanni

2018-02-01

This is a description of the conceptual foundations used for designing a novel learning environment for mechanics implemented as an Industrial Educational Laboratory - called Fisica in Moto (FiM) - at the Ducati Foundation in Bologna. In this paper, we will describe the motivation for and design of the conceptual approach to mechanics used in the lab - as such, the paper is theoretical in nature. The goal of FiM is to provide an approach to the teaching of mechanics based upon imaginative structures found in continuum physics suitable to engineering and science. We show how continuum physics creates models of mechanical phenomena by using momentum and angular momentum as primitive quantities. We analyse this approach in terms of cognitive linguistic concepts such as conceptual metaphor and narrative framing of macroscopic physical phenomena. The model discussed here has been used in the didactical design of the actual lab and raises questions for an investigation of student learning of mechanics in a narrative setting.

G-protein-coupled receptor structures were not built in a day.

PubMed

Blois, Tracy M; Bowie, James U

2009-07-01

Among the most exciting recent developments in structural biology is the structure determination of G-protein-coupled receptors (GPCRs), which comprise the largest class of membrane proteins in mammalian cells and have enormous importance for disease and drug development. The GPCR structures are perhaps the most visible examples of a nascent revolution in membrane protein structure determination. Like other major milestones in science, however, such as the sequencing of the human genome, these achievements were built on a hidden foundation of technological developments. Here, we describe some of the methods that are fueling the membrane protein structure revolution and have enabled the determination of the current GPCR structures, along with new techniques that may lead to future structures.

Statistical mechanics of protein structural transitions: Insights from the island model

PubMed Central

Kobayashi, Yukio

2016-01-01

The so-called island model of protein structural transition holds that hydrophobic interactions are the key to both the folding and function of proteins. Herein, the genesis and statistical mechanical basis of the island model of transitions are reviewed, by presenting the results of simulations of such transitions. Elucidating the physicochemical mechanism of protein structural formation is the foundation for understanding the hierarchical structure of life at the microscopic level. Based on the results obtained to date using the island model, remaining problems and future work in the field of protein structures are discussed, referencing Professor Saitô’s views on the hierarchic structure of science. PMID:28409078

Benthic versus Planktonic Foundations of Three Lake Superior Coastal Food Webs

EPA Science Inventory

The structure of aquatic food webs can provide information on system function, trophic dynamics and, potentially, responses to anthropogenic stressors. Stable isotope analyses in a Lake Superior coastal wetland (Allouez Bay, WI, USA) revealed that the food web was based upon carb...

The Causal Foundations of Structural Equation Modeling

DTIC Science & Technology

2012-02-16

and Baumrind (1993).” This, together with the steady influx of statisticians into the field, has left SEM re- searchers in a quandary about the...considerations. Journal of Personality and Social Psychology 51 1173–1182. Baumrind , D. (1993). Specious causal attributions in social sciences: The

Investigation and development of an effective, economical and efficient concrete pile splice.

DOT National Transportation Integrated Search

2015-06-01

Structures such as bridges or tall buildings often require deep foundations in order to reach soil or rock strata capable of resisting the associated high loads. In Florida, concrete elements such as driven piles, drilled shafts or other cast-in-plac...

Mixing Metaphors: Building Infrastructure for Large Scale School Turnaround

ERIC Educational Resources Information Center

Peurach, Donald J.; Neumerski, Christine M.

2015-01-01

The purpose of this analysis is to increase understanding of the possibilities and challenges of building educational infrastructure--the basic, foundational structures, systems, and resources--to support large-scale school turnaround. Building educational infrastructure often exceeds the capacity of schools, districts, and state education…

Steel shear strength of anchors with stand-off base plates : [technical summary].

DOT National Transportation Integrated Search

2013-09-01

Sign and signal structures are often connected : to concrete foundations through an annular base : plate set on anchor bolts. The plate is leveled : with nuts beneath it and secured with nuts : above it a double-nut connection. In many : in...

Weaving Social Foundations through Dance Pedagogy: A Pedagogy of Uncovering

ERIC Educational Resources Information Center

Barr, Sherrie; Risner, Doug

2014-01-01

Today's dance educators enter classrooms populated by increasingly diverse students in which teachers' pedagogical knowledge necessitates heightened understandings of race, ethnicity, social class, gender, and sexuality. Uncovering taken-for-granted assumptions, dominant stereotypes, and educational structures that reproduce social…

Determination of rheological parameters of pile foundations for bridges for earthquake analysis

DOT National Transportation Integrated Search

1997-07-01

In the seismic design criteria for highway bridges, there is a significant lack of guidance on ways to incorporate the effect of soil-structure interaction in determining seismic response. For this study, a simple analytical model for pile and pile g...

75 FR 49429 - Metal and Nonmetal Dams

Federal Register 2010, 2011, 2012, 2013, 2014

2010-08-13

... internal water pressures. Pressures beyond a certain level would lead to structural instability. In the 18... foundation and embankment material strengths, and stability analyses to verify that the slopes of the dam..., rationales, benefits to miners, technological and economic feasibility, impact on small mines, and supporting...

From Confederation to Constitituion.

ERIC Educational Resources Information Center

Lennon, Donald R.

The paper discusses the political events and issues that affected North Carolina and the nation between 1776 and 1789. Attitudes and philosophies on government and its centralization form the foundation for North Carolina's traditional and firm opposition to centralization of power and changes in government structure. North Carolina's…

Structural characteristics of surface-functionalized nitrogen-doped diamond-like carbon films and effective adjustment to cell attachment

NASA Astrophysics Data System (ADS)

Liu, Ai-Ping; Liu, Min; Yu, Jian-Can; Qian, Guo-Dong; Tang, Wei-Hua

2015-05-01

Nitrogen-doped diamond-like carbon (DLC:N) films prepared by the filtered cathodic vacuum arc technology are functionalized with various chemical molecules including dopamine (DA), 3-Aminobenzeneboronic acid (APBA), and adenosine triphosphate (ATP), and the impacts of surface functionalities on the surface morphologies, compositions, microstructures, and cell compatibility of the DLC:N films are systematically investigated. We demonstrate that the surface groups of DLC:N have a significant effect on the surface and structural properties of the film. The activity of PC12 cells depends on the particular type of surface functional groups of DLC:N films regardless of surface roughness and wettability. Our research offers a novel way for designing functionalized carbon films as tailorable substrates for biosensors and biomedical engineering applications. Project supported by the National Natural Science Foundation of China (Grant Nos. 51272237, 51272231, and 51010002) and the China Postdoctoral Science Foundation (Grant Nos. 2012M520063, 2013T60587, and Bsh1201016).

The Terrestrial Planets Formation in the Solar-System Analogs

NASA Astrophysics Data System (ADS)

Ji, Jianghui; Liu, L.; Chambers, J. E.; Butler, R. P.

2006-09-01

In this work, we numerically studied the terrestrial planets formation in the Solar-Systems Analogs using MERCURY (Chambers 1999). The Solar-System Analogs are herein defined as a solar-system like planetary system, where the system consists of two wide-separated Jupiter-like planets (e.g., 47 UMa, Ji et al. 2005) move about the central star on nearly circular orbits with low inclinations, then low-mass terrestrial planets can be formed there, and life would be possibly evolved. We further explored the terrestrial planets formation due to the current uncertainties of the eccentricities for two giant planets. In addition, we place a great many of the planetesimals between two Jupiter-like planets to investigate the potential asteroidal structure in such systems. We showed that the secular resonances and mean motion resonances can play an important role in shaping the asteroidal structure. We acknowledge the financial support by National Natural Science Foundation of China (Grant No.10573040, 10233020, 10203005) and Foundation of Minor Planets of Purple Mountain Observatory.

Seismic analysis of offshore wind turbines on bottom-fixed support structures.

PubMed

Alati, Natale; Failla, Giuseppe; Arena, Felice

2015-02-28

This study investigates the seismic response of a horizontal axis wind turbine on two bottom-fixed support structures for transitional water depths (30-60 m), a tripod and a jacket, both resting on pile foundations. Fully coupled, nonlinear time-domain simulations on full system models are carried out under combined wind-wave-earthquake loadings, for different load cases, considering fixed and flexible foundation models. It is shown that earthquake loading may cause a significant increase of stress resultant demands, even for moderate peak ground accelerations, and that fully coupled nonlinear time-domain simulations on full system models are essential to capture relevant information on the moment demand in the rotor blades, which cannot be predicted by analyses on simplified models allowed by existing standards. A comparison with some typical design load cases substantiates the need for an accurate seismic assessment in sites at risk from earthquakes. © 2015 The Author(s) Published by the Royal Society. All rights reserved.

Empirical relationship between electrical resistivity and geotechnical parameters: A case study of Federal University of Technology campus, Akure SW, Nigeria

NASA Astrophysics Data System (ADS)

Akintorinwa, O. J.; Oluwole, S. T.

2018-06-01

For several decades, geophysical prospecting method coupled with geotechnical analysis has become increasingly useful in evaluating the subsurface for both pre and post engineering investigations. Shallow geophysical tool is often used alongside geotechnical method to evaluate subsurface soil for engineering study to obtain information which may include the subsurface lithology and their thicknesses, competence of the bedrock and depths to its upper interface, and competence of the material that make up the overburden, especially the shallow section which serves as host for foundations of engineering structures (Aina et al., 1996; Adewumi and Olorunfemi, 2005; and Idornigie et al., 2006). This information helps the engineers to correctly locate and design the foundation of engineering structures. The information also serves as guide to the choice of design and suitable materials needed for road construction (Akinlabi and Adeyemi, 2014). Lack of knowledge of the properties of subsurface may leads to the failure of most engineering structures. Therefore, it is of great importance to carry out a pre-construction investigation of a proposed site in order to ascertain the fitness of the host earth material.

Study on the mechanism of perpendicular magnetic anisotropy in Ta/CoFeB/MgO system

NASA Astrophysics Data System (ADS)

Lou, Yongle; Zhang, Yuming; Guo, Hui; Xu, Daqing; Yimen, Zhang

2017-06-01

The mechanism of perpendicular magnetic anisotropy (PMA) in a MgO-based magnetic tunnel junction (MTJ) has been studied in this article. By comparing the magnetic properties and elementary composition analysis for different CoFeB-based structures, such as Ta/CoFeB/MgO, Ta/CoFeB/Ta and Ru/CoFeB/MgO structures, it is found that a certain amount of Fe-oxide existing at the interface of CoFeB/MgO is helpful to enhance the PMA and the PMA is originated from the interface of CoFeB/MgO. In addition, Ta film plays an important role to enhance the PMA in Ta/CoFeB/MgO structure. Project supported by the National Defense Advance Research Foundation (No. 9140A08XXXXXX0DZ106), the Basic Research Program of Ministry of Education, China (No. JY10000925005), the Scientific Research Program Funded by Shaanxi Provincial Education Department (No.11JK0912), the Scientific Research Foundation of Xi’an University of Science and Technology (No. 2010011), the Doctoral Research Startup Fund of Xi’an University of Science and Technology (No. 2010QDJ029).

The Tropical Biominer Project: mining old sources for new drugs.

PubMed

Artiguenave, François; Lins, André; Maciel, Wesley Dias; Junior, Antonio Celso Caldeira; Nacif-Coelho, Carla; de Souza Linhares, Maria Margarida Ribeiro; de Oliveira, Guilherme Correa; Barbosa, Luis Humberto Rezende; Lopes, Júlio César Dias; Junior, Claudionor Nunes Coelho

2005-01-01

The Tropical Biominer Project is a recent initiative from the Federal University of Minas Gerais (UFMG) and the Oswaldo Cruz foundation, with the participation of the Biominas Foundation (Belo Horizonte, Minas Gerais, Brazil) and the start-up Homologix. The main objective of the project is to build a new resource for the chemogenomics research, on chemical compounds, with a strong emphasis on natural molecules. Adopted technologies include the search of information from structured, semi-structured, and non-structured documents (the last two from the web) and datamining tools in order to gather information from different sources. The database is the support for developing applications to find new potential treatments for parasitic infections by using virtual screening tools. We present here the midpoint of the project: the conception and implementation of the Tropical Biominer Database. This is a Federated Database designed to store data from different resources. Connected to the database, a web crawler is able to gather information from distinct, patented web sites and store them after automatic classification using datamining tools. Finally, we demonstrate the interest of the approach, by formulating new hypotheses on specific targets of a natural compound, violacein, using inferences from a Virtual Screening procedure.

Dynamics of layered reinforced concrete beam on visco-elastic foundation with different resistances of concrete and reinforcement to tension and compression

NASA Astrophysics Data System (ADS)

Nemirovsky, Y. V.; Tikhonov, S. V.

2018-03-01

Originally, fundamentals of the theory of limit equilibrium and dynamic deformation of building metal and reinforced concrete structures were created by A. A. Gvozdev [1] and developed by his followers [4, 5, 6, 7, 11, 12]. Forming the basis for the calculation, the model of an ideal rigid-plastic material has enabled to determine in many cases the ultimate load bearing capacity and upper (kinematically possible) or lower (statically valid) values for a wide class of different structures with quite simple methods. At the same time, applied to concrete structures the most important property of concrete to significantly differently resist tension and compression was not taken into account [10]. This circumstance was considered in [3] for reinforced concrete beams under conditions of quasistatic loading. The deformation is often accompanied by resistance of the environment in construction practice [8, 9]. In [2], the dynamics of multi-layered concrete beams on visco-elastic foundation under the loadings of explosive type is considered. In this work we consider the case which is often encountered in practical applications when the loadings weakly change in time.

The influences of soil and nearby structures on dispersion characteristics of wave propagating along buried plastic pipes

NASA Astrophysics Data System (ADS)

Liu, Shuyong; Jiang, J.; Parr, Nicola

2016-09-01

Water loss in distribution systems is a global problem for the water industry and governments. According to the international water supply association (IWSA), as a result of leaks from distribution pipes, 20% to 30% of water is lost while in transit from treatment plants to consumers. Although governments have tried to push the water industry to reduce the water leaks, a lot of experts have pointed out that a wide use of plastic pipes instead of metal pipes in recent years has caused difficulties in the detection of leaks using current acoustic technology. Leaks from plastic pipes are much quieter than traditional metal pipes and comparing to metal pipes the plastic pipes have very different coupling characteristics with soil, water and surrounding structures, such as other pipes, road surface and building foundations. The dispersion characteristics of wave propagating along buried plastic pipes are investigated in this paper using finite element and boundary element based models. Both empty and water- filled pipes were considered. Influences from nearby pipes and building foundations were carefully studied. The results showed that soil condition and nearby structures have significant influences on the dispersion characteristics of wave propagating along buried plastic pipes.

Building Structure Housing: Case Study of Community Housing in Kendari City

NASA Astrophysics Data System (ADS)

Umar, M. Z.; Faslih, A.; Arsyad, M.; Sjamsu, A. S.; Kadir, I.

2017-11-01

Housing development has been pioneered through a simple home construction program to reduce the production cost. Simple housing program was developed in Kendari City. The purpose of this study is to show the principles of reducing the cost production for the type 36 homes, in Kendari City. The selected architectural objects are the lower, middle and the upper structure of type 36 house. The data collection was done by observation and in-depth discussion with construction workers. The analysis technique used in this research was a descriptive narrative analysis technique in the form of tabulation data. This study concluded that there are several principles of price reduction in the structure of public housing buildings. Quick principles exist in constructing techniques such as using cigarette packs as a foundation pad, mortar usage for rapid wall standing, and the spacing of mortars could be done manually by using two fingers on a human hand. Economic principles could be used for material matters, such as eliminating the use of gravel for concrete, the use of sand material to contain the soil, the foundation does not use sand and empty stone, and the shape of the ring beam was made using triangle reinforcement.

Formal Foundations for Hierarchical Safety Cases

NASA Technical Reports Server (NTRS)

Denney, Ewen; Pai, Ganesh; Whiteside, Iain

2015-01-01

Safety cases are increasingly being required in many safety-critical domains to assure, using structured argumentation and evidence, that a system is acceptably safe. However, comprehensive system-wide safety arguments present appreciable challenges to develop, understand, evaluate, and manage, partly due to the volume of information that they aggregate, such as the results of hazard analysis, requirements analysis, testing, formal verification, and other engineering activities. Previously, we have proposed hierarchical safety cases, hicases, to aid the comprehension of safety case argument structures. In this paper, we build on a formal notion of safety case to formalise the use of hierarchy as a structuring technique, and show that hicases satisfy several desirable properties. Our aim is to provide a formal, theoretical foundation for safety cases. In particular, we believe that tools for high assurance systems should be granted similar assurance to the systems to which they are applied. To this end, we formally specify and prove the correctness of key operations for constructing and managing hicases, which gives the specification for implementing hicases in AdvoCATE, our toolset for safety case automation. We motivate and explain the theory with the help of a simple running example, extracted from a real safety case and developed using AdvoCATE.

Balancing Power Absorption and Fatigue Loads in Irregular Waves for an Oscillating Surge Wave Energy Converter

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

Tom, Nathan M.; Yu, Yi-Hsiang; Wright, Alan D.

The aim of this paper is to describe how to control the power-to-load ratio of a novel wave energy converter (WEC) in irregular waves. The novel WEC that is being developed at the National Renewable Energy Laboratory combines an oscillating surge wave energy converter (OSWEC) with control surfaces as part of the structure; however, this work only considers one fixed geometric configuration. This work extends the optimal control problem so as to not solely maximize the time-averaged power, but to also consider the power-take-off (PTO) torque and foundation forces that arise because of WEC motion. The objective function of themore » controller will include competing terms that force the controller to balance power capture with structural loading. Separate penalty weights were placed on the surge-foundation force and PTO torque magnitude, which allows the controller to be tuned to emphasize either power absorption or load shedding. Results of this study found that, with proper selection of penalty weights, gains in time-averaged power would exceed the gains in structural loading while minimizing the reactive power requirement.« less

Balancing Power Absorption and Fatigue Loads in Irregular Waves for an Oscillating Surge Wave Energy Converter: Preprint

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

Tom, Nathan M.; Yu, Yi-Hsiang; Wright, Alan D.

The aim of this paper is to describe how to control the power-to-load ratio of a novel wave energy converter (WEC) in irregular waves. The novel WEC that is being developed at the National Renewable Energy Laboratory combines an oscillating surge wave energy converter (OSWEC) with control surfaces as part of the structure; however, this work only considers one fixed geometric configuration. This work extends the optimal control problem so as to not solely maximize the time-averaged power, but to also consider the power-take-off (PTO) torque and foundation forces that arise because of WEC motion. The objective function of themore » controller will include competing terms that force the controller to balance power capture with structural loading. Separate penalty weights were placed on the surge-foundation force and PTO torque magnitude, which allows the controller to be tuned to emphasize either power absorption or load shedding. Results of this study found that, with proper selection of penalty weights, gains in time-averaged power would exceed the gains in structural loading while minimizing the reactive power requirement.« less

A case study of the changing nature of a non-government organisation: a focus on disability and development.

PubMed

Yoshida, Karen K; Parnes, Penny; Brooks, Dina; Cameron, Deb

2009-01-01

The purpose of this article is to describe the changing nature, process and structure of an international non-governmental organisation (NGO) in response to internal and external factors. This article is based on the interview data collected for the study which focussed on the experiences and perception of key informants on trends related to official development assistance, local governments' perspective of the NGO as a development partner and the NGO's perception of corporate and foundation support. Qualitative descriptive data analysis was used. Three main themes were developed with the interview data. Our analysis indicated shifts in the: (1) vision/nature (single to cross disability focus), (2) structure (building internal and external relationships) and (3) process (from ad hoc to systemic evaluations). These broader issues of vision, structure (relationships) and evaluation within and outside of the organisation, needs to be addressed to provide a foundation upon which funding initiatives can be developed. A closer relationship between funders and projects/programmes would do much to enhance the partnership and would ensure that the projects are able to measure and report results in a manner that is conducive to increasing support.

Building Capacity in Understanding Foundational Biology Concepts: A K-12 Learning Progression in Genetics Informed by Research on Children's Thinking and Learning

NASA Astrophysics Data System (ADS)

Elmesky, Rowhea

2013-06-01

This article describes the substance, structure, and rationale of a learning progression in genetics spanning kindergarten through twelfth grade (K-12). The learning progression is designed to build a foundation towards understanding protein structure and activity and should be viewed as one possible pathway to understanding concepts of genetics and ultimately protein expression, based on the existing research. The kindergarten through fifth grade segment reflects findings that show children have a rich knowledge base and sophisticated cognitive abilities, and therefore, is designed so that elementary-aged children can learn content in deep and abstract manners, as well as apply scientific explanations appropriate to their knowledge level. The article also details the LP segment facilitating secondary students' understanding by outlining the overlapping conceptual frames which guide student learning from cell structures and functions to cell splitting (both cell division and gamete formation) to genetics as trait transmission, culminating in genetics as protein expression. The learning progression product avoids the use of technical language, which has been identified as a prominent source of student misconceptions in learning cellular biology, and explicit connections between cellular and macroscopic phenomena are encouraged.

Controlling macro- and mesostructures with hierarchical porosity through combined hard and soft templating.

PubMed

Petkovich, Nicholas D; Stein, Andreas

2013-05-07

Rigid, porous objects and surfactants serve as powerful templates for the formation of mesoporous and macroporous materials. When both types of template are combined in a single synthesis, materials with intricate architectures and hierarchical porosity can be obtained. In this tutorial review, we explain how to conduct syntheses with both soft and hard templates; moreover, we describe methods to control the final structure present in the templated material. Much of the foundation for multiple templating lies in the study of materials made with only one type of template. To establish a foundation in this area, a description of hard and soft templating is given, delving into the templates available and the steps required for effective templating. This leads into an extended discussion about materials templated with both hard and soft templates. Through the use of recent examples in the literature, we aim to show the diversity of structures possible through multiple templating and the advantages these structures can provide for a wide range of applications. An emphasis is placed on how various factors-such as the type of template, type of precursor, heat-treatment temperature, confinement within a small space, and template-template interactions-impact morphology.

Study on load-bearing characteristics of a new pile group foundation for an offshore wind turbine.

PubMed

Lang, Ruiqing; Liu, Run; Lian, Jijian; Ding, Hongyan

2014-01-01

Because offshore wind turbines are high-rise structures, they transfer large horizontal loads and moments to their foundations. One of the keys to designing a foundation is determining the sensitivities and laws affecting its load-bearing capacity. In this study, this procedure was carried out for a new high-rise cap pile group foundation adapted to the loading characteristics of offshore wind turbines. The sensitivities of influential factors affecting the bearing properties were determined using an orthogonal test. Through a combination of numerical simulations and model tests, the effects of the inclination angle, length, diameter, and number of side piles on the vertical bearing capacity, horizontal bearing capacity, and bending bearing capacity were determined. The results indicate that an increase in the inclination angle of the side piles will increase the vertical bearing capacity, horizontal bearing capacity, and bending bearing capacity. An increase in the length of the side piles will increase the vertical bearing capacity and bending bearing capacity. When the length of the side piles is close to the central pile, the increase is more apparent. Finally, increasing the number of piles will increase the horizontal bearing capacity; however, the growth rate is small because of the pile group effect.

Study on Load-Bearing Characteristics of a New Pile Group Foundation for an Offshore Wind Turbine

PubMed Central

Liu, Run; Lian, Jijian; Ding, Hongyan

2014-01-01

Because offshore wind turbines are high-rise structures, they transfer large horizontal loads and moments to their foundations. One of the keys to designing a foundation is determining the sensitivities and laws affecting its load-bearing capacity. In this study, this procedure was carried out for a new high-rise cap pile group foundation adapted to the loading characteristics of offshore wind turbines. The sensitivities of influential factors affecting the bearing properties were determined using an orthogonal test. Through a combination of numerical simulations and model tests, the effects of the inclination angle, length, diameter, and number of side piles on the vertical bearing capacity, horizontal bearing capacity, and bending bearing capacity were determined. The results indicate that an increase in the inclination angle of the side piles will increase the vertical bearing capacity, horizontal bearing capacity, and bending bearing capacity. An increase in the length of the side piles will increase the vertical bearing capacity and bending bearing capacity. When the length of the side piles is close to the central pile, the increase is more apparent. Finally, increasing the number of piles will increase the horizontal bearing capacity; however, the growth rate is small because of the pile group effect. PMID:25250375

Foundations of chaotic mixing.

PubMed

Wiggins, Stephen; Ottino, Julio M

2004-05-15

The simplest mixing problem corresponds to the mixing of a fluid with itself; this case provides a foundation on which the subject rests. The objective here is to study mixing independently of the mechanisms used to create the motion and review elements of theory focusing mostly on mathematical foundations and minimal models. The flows under consideration will be of two types: two-dimensional (2D) 'blinking flows', or three-dimensional (3D) duct flows. Given that mixing in continuous 3D duct flows depends critically on cross-sectional mixing, and that many microfluidic applications involve continuous flows, we focus on the essential aspects of mixing in 2D flows, as they provide a foundation from which to base our understanding of more complex cases. The baker's transformation is taken as the centrepiece for describing the dynamical systems framework. In particular, a hierarchy of characterizations of mixing exist, Bernoulli --> mixing --> ergodic, ordered according to the quality of mixing (the strongest first). Most importantly for the design process, we show how the so-called linked twist maps function as a minimal picture of mixing, provide a mathematical structure for understanding the type of 2D flows that arise in many micromixers already built, and give conditions guaranteeing the best quality mixing. Extensions of these concepts lead to first-principle-based designs without resorting to lengthy computations.

Structural basis of substrate specificity in the serine proteases.

PubMed Central

Perona, J. J.; Craik, C. S.

1995-01-01

Structure-based mutational analysis of serine protease specificity has produced a large database of information useful in addressing biological function and in establishing a basis for targeted design efforts. Critical issues examined include the function of water molecules in providing strength and specificity of binding, the extent to which binding subsites are interdependent, and the roles of polypeptide chain flexibility and distal structural elements in contributing to specificity profiles. The studies also provide a foundation for exploring why specificity modification can be either straightforward or complex, depending on the particular system. PMID:7795518

Creation Myths of Generative Grammar and the Mathematics of Syntactic Structures

NASA Astrophysics Data System (ADS)

Pullum, Geoffrey K.

Syntactic Structures (Chomsky [6]) is widely believed to have laid the foundations of a cognitive revolution in linguistic science, and to have presented (i) the first use in linguistics of powerful new ideas regarding grammars as generative systems, (ii) a proof that English was not a regular language, (iii) decisive syntactic arguments against context-free phrase structure grammar description, and (iv) a demonstration of how transformational rules could provide a formal solution to those problems. None of these things are true. This paper offers a retrospective analysis and evaluation.

The Shock and Vibration Bulletin. Part 3: Structure Medium Interaction, Case Studies in Dynamics

NASA Technical Reports Server (NTRS)

1979-01-01

Structure and medium interactions topics are addressed. Topics include: a failure analysis of underground concrete structures subjected to blast loadings, an optimization design procedure for concrete slabs, and a discussion of the transient response of a cylindrical shell submerged in a fluid. Case studies in dynamics are presented which include an examination of a shock isolation platform for a seasparrow launcher, a discussion of hydrofoil fatigue load environments, and an investigation of the dynamic characteristics of turbine generators and low tuned foundations.

Current Scientific Approaches to Decision Making in Complex Systems. 3. Volume 2. Conference Position Papers

DTIC Science & Technology

1980-01-01

Search: Traffic on a Multi- dimensional Structure R. i. Atkin, University of Essex, England b. Annex. Volume 3: Decision: Foundation and Practice Brian R...Gaines, University of Essex, England Volume 4: Competing Modes of Cognition and Communication in Simulated and Self-Reflective Systems Stein Braten... University of Oslo, Norway Volume 5: On the Spontaneous Emergence of Decision Making Constraints in Communicating Hierarchical Structure John S

Preliminary Structural Design - Defining the Design Space

DTIC Science & Technology

1993-02-01

York, 1949 7. Rosenblatt, R., Prnciples of Neurodynamics , New York, Spartan Books, 1959 8. Swift, R.,"Structural Design Using Neural Networks," Ph.D...Explorations in the Microstructure of Cognition . Vol. 1 Foundations D. E. Rumelhart and J.L. McClelland Editors, MIT Press, 1986 40. Parker, D. B...Processing: Explorations in the Microstructure of Cognition , MIT Press 1986 45. Schittkowski, K., Nonlinear o a gmi codes Lecture Notes in Economics and

Novel Material Systems and Methodologies for Transient Thermal Management

NASA Technical Reports Server (NTRS)

Oliva-Buisson, Yvette J.

2014-01-01

Development of multifunctional and thermally switchable systems to address reduced mass and components, and tailored for both structural and transient thermal applications. Active, passive, and novel combinations of the two functional approaches are being developed along two lines of research investigation: switchable systems and transient heat spreading. The approach is to build in thermal functionality to structural elements to lay the foundation for a revolution in the way high energy space systems are designed.

Generalized Birkhoffian representation of nonholonomic systems and its discrete variational algorithm

NASA Astrophysics Data System (ADS)

Liu, Shixing; Liu, Chang; Hua, Wei; Guo, Yongxin

2016-11-01

By using the discrete variational method, we study the numerical method of the general nonholonomic system in the generalized Birkhoffian framework, and construct a numerical method of generalized Birkhoffian equations called a self-adjoint-preserving algorithm. Numerical results show that it is reasonable to study the nonholonomic system by the structure-preserving algorithm in the generalized Birkhoffian framework. Project supported by the National Natural Science Foundation of China (Grant Nos. 11472124, 11572145, 11202090, and 11301350), the Doctor Research Start-up Fund of Liaoning Province, China (Grant No. 20141050), the China Postdoctoral Science Foundation (Grant No. 2014M560203), and the General Science and Technology Research Plans of Liaoning Educational Bureau, China (Grant No. L2013005).

Structural cost optimization of photovoltaic central power station modules and support structure

NASA Technical Reports Server (NTRS)

Sutton, P. D.; Stolte, W. J.; Marsh, R. O.

1979-01-01

The results of a comprehensive study of photovoltaic module structural support concepts for photovoltaic central power stations and their associated costs are presented. The objective of the study has been the identification of structural cost drivers. Parametric structural design and cost analyses of complete array systems consisting of modules, primary support structures, and foundations were performed. Area related module cost was found to be constant with design, size, and loading. A curved glass module concept was evaluated and found to have the potential to significantly reduce panel structural costs. Conclusions of the study are: array costs do not vary greatly among the designs evaluated; panel and array costs are strongly dependent on design loading; and the best support configuration is load dependent

Parabolic Dish Concentrator (PDC-2) Development

NASA Technical Reports Server (NTRS)

Rafinejad, D.

1984-01-01

The design of the Parabolic Dish Concentrator (PDC-2) is described. The following five subsystems of the concentrator are discussed: (1) reflective surface subsystem, (2) support structure subsystem, (3) foundation, (4) drive subsystem, and (5) electrical and control subsystem. The status of the PDC-2 development project is assessed.

Why You Are in Trouble If You Think Marketing Is Just Sales.

ERIC Educational Resources Information Center

Cook, Kenneth J.

1997-01-01

Distinguishes between marketing (analysis and strategies with which to position a business) and sales (implementation of marketing ideas). Identifies pitfalls of equating the two, such as sales plans without a marketing foundation and failure to structure sales tactics around customer needs. (SK)

Advanced Pavement Design: Finite Element Modeling for Rigid Pavement Joints, Report II: Model Development

DOT National Transportation Integrated Search

1998-03-01

The contribution of a cement-stabilized base course to the strength of the rigid pavement structure is poorly understood. The objective of this research was to obtain data on the response of the rigid pavement slab-joint-foundation system by conducti...

State of the practice and art for structural health monitoring of bridge substructures.

DOT National Transportation Integrated Search

2014-05-01

In an age of technological advances, the ability to monitor the performance of bridge foundations has evolved such that both short- and long-term data acquisition of embedded gauges is not only available but also cost effective. Case studies were doc...

Evaluation of torsional load transfer for drilled shaft foundations : final report : SPR 304-701.

DOT National Transportation Integrated Search

2016-05-01

Despite the prevalence of the use of drilled shafts for the support of traffic signal and signs along : state highways, relatively little is known about the torsional load transfer between the structure and soil providing : its support. A review of l...

Youth Unemployment and National Service.

ERIC Educational Resources Information Center

Thomas, Franklin A.

This 1983 speech by the president of the Ford Foundation addresses the problem of youth unemployment and examines the case for adoption of a system of "National Service." The widening effects of structural unemployment are cited; and economic, demographic, and technological reasons for this phenomenon are outlined. National Service is…

Investigation and development of an effective, economical and efficient concrete pile splice : [summary].

DOT National Transportation Integrated Search

2015-08-01

Large structures like bridges or tall buildings are often built on deep foundations either precast concrete piles or cast-in-place drilled shafts. The pile or shaft must be long enough to reach : a rock layer or to provide sufficient resistance t...

NATURAL AND ANTHROPOGENIC FACTORS INFLUENCING FOOD WEB STRUCTURE IN GREAT LAKES COASTAL WETLANDS

EPA Science Inventory

We are investigating factors governing the biological organization of Great Lakes coastal wetlands. Food web analyses using stable isotope techniques verify the role of algae as an energetic foundation, and also suggest that fundamental changes occur as a result of anthropogenic ...

Building Condition and Suitability Evaluation Manual.

ERIC Educational Resources Information Center

MGT of America, Inc., Tallahassee, FL.

This educational facility evaluation manual contains the overall building condition rating form and the supporting check sheets which have been field tested in several states and, where appropriate, modified for use in the Idaho School Facilities Needs Assessment. The exterior building condition form examines the foundation, structure, walls,…

A Software Laboratory Environment for Computer-Based Problem Solving.

ERIC Educational Resources Information Center

Kurtz, Barry L.; O'Neal, Micheal B.

This paper describes a National Science Foundation-sponsored project at Louisiana Technological University to develop computer-based laboratories for "hands-on" introductions to major topics of computer science. The underlying strategy is to develop structured laboratory environments that present abstract concepts through the use of…

Segmenting Dynamic Human Action via Statistical Structure

ERIC Educational Resources Information Center

Baldwin, Dare; Andersson, Annika; Saffran, Jenny; Meyer, Meredith

2008-01-01

Human social, cognitive, and linguistic functioning depends on skills for rapidly processing action. Identifying distinct acts within the dynamic motion flow is one basic component of action processing; for example, skill at segmenting action is foundational to action categorization, verb learning, and comprehension of novel action sequences. Yet…

Basic Research in Artificial Intelligence and Foundations of Programming

DTIC Science & Technology

1980-05-01

and Their Decision Problems, Proceedings Seventh ACM Symposium on Principles of Programming Languages, Las Vegas (Jan. 1980), pp. 62-67. 5. Z. Manna and...Semantics, Comunicaciones Tecnicas (in Spanish). Blue Series: monographs. Center 1 17. Nevatia, R., T.O. Binford; Structured for Research in Applied

Development Committee. AGB Standing Committee Series.

ERIC Educational Resources Information Center

Kinnison, William

1984-01-01

The structure and functions of college development committees are discussed. The development committee of a board of trustees, also known as "the institutional advancement" committee, is responsible for ensuring the operation of the fund-raising program. Whether the development committee works through a foundation or directly for the…

A Semantic Graph Query Language

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

Kaplan, I L

2006-10-16

Semantic graphs can be used to organize large amounts of information from a number of sources into one unified structure. A semantic query language provides a foundation for extracting information from the semantic graph. The graph query language described here provides a simple, powerful method for querying semantic graphs.

67. CANAL TENDER'S HOUSE AT LOCK 2 EAST. DUE TO ...

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

67. CANAL TENDER'S HOUSE AT LOCK 2 EAST. DUE TO DETERIORATION OF THE BUILDINGS WALLS AND FOUNDATION, CABLES FROM AN INCLINED PLANE WERE WRAPPED AROUND THE HOUSE AND FASTENED TO PLANE RAILS PLACED ON OPPOSITE ENDS OF THE STRUCTURE. - Morris Canal, Phillipsburg, Warren County, NJ

Structures to Resist the Effects of Accidental Explosions. Volume 1. Introduction

DTIC Science & Technology

1987-12-01

Biology and Problem Areas in Relating Physical and Biological Parameters, Lovelace Foundation for Medical Education and Research, Albuquerque, New Mexico...ARAED-TR-87033, U.S. Army Armament Research, Development and Engineering Center, Dover, N.J., October, 1987. 42 DISTRIDUTON LIST Commander Annment Researh

Spanish American Customs, Culture and Personality.

ERIC Educational Resources Information Center

Reindorp, Reginald C.

This textbook develops a cross-cultural portrait of Latin America. Four major sections are concerned with the cultural blueprint, historical and social foundations, the social structure, and intellectual and economic life. Subchapters include: (1) the rise of the Spanish people, (2) administration and jurisprudence, (3) the church, (4) the…

Productive Nanosystems: The Physics of Molecular Fabrication

ERIC Educational Resources Information Center

Drexler, K. Eric

2005-01-01

Fabrication techniques are the foundation of physical technology, and are thus of fundamental interest. Physical principles indicate that nanoscale systems will be able to fabricate a wide range of structures, operating with high productivity and precise molecular control. Advanced systems of this kind will require intermediate generations of…

Building America Case Study: Excavationless Exterior-Side Foundation Insulation for Existing Homes, Minneapolis, Minnesota (Fact Sheet)

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

NorthernSTAR

Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with a liquidmore » insulating foam. The team was able to excavate a continuous 4" wide by 4' to 5' deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.« less

Designing novel thin film polycrystalline solar cells for high efficiency: sandwich CIGS and heterojunction perovskite

NASA Astrophysics Data System (ADS)

Wang, Tianyue; Chen, Jiewei; Wu, Gaoxiang; Song, Dandan; Li, Meicheng

2017-01-01

Heterojunction and sandwich architectures are two new-type structures with great potential for solar cells. Specifically, the heterojunction structure possesses the advantages of efficient charge separation but suffers from band offset and large interface recombination; the sandwich configuration is favorable for transferring carriers but requires complex fabrication process. Here, we have designed two thin-film polycrystalline solar cells with novel structures: sandwich CIGS and heterojunction perovskite, referring to the advantages of the architectures of sandwich perovskite (standard) and heterojunction CIGS (standard) solar cells, respectively. A reliable simulation software wxAMPS is used to investigate their inherent characteristics with variation of the thickness and doping density of absorber layer. The results reveal that sandwich CIGS solar cell is able to exhibit an optimized efficiency of 20.7%, which is much higher than the standard heterojunction CIGS structure (18.48%). The heterojunction perovskite solar cell can be more efficient employing thick and doped perovskite films (16.9%) than these typically utilizing thin and weak-doping/intrinsic perovskite films (9.6%). This concept of structure modulation proves to be useful and can be applicable for other solar cells. Project supported by the National High-Tech R&D Program of China (No. 2015AA034601), the National Natural Science Foundation of China (Nos. 91333122, 61204064, 51202067, 51372082, 51402106, 11504107), the Ph.D. Programs Foundation of Ministry of Education of China (Nos. 20120036120006, 20130036110012), the Par-Eu Scholars Program, and the Fundamental Research Funds for the Central Universities.

Cognitive foundations of organizational learning: re-introducing the distinction between declarative and non-declarative knowledge

PubMed Central

Kump, Barbara; Moskaliuk, Johannes; Cress, Ulrike; Kimmerle, Joachim

2015-01-01

Contemporary research into socio-cognitive foundations of organizational learning tends to disregard the distinction between declarative and non-declarative knowledge. By reviewing the literature from organizational learning research and cognitive psychology we explain that this distinction is crucial. We describe the foundations of organizational learning by referring to models that consider the interplay between individual and collective knowledge-related processes in organizations. We highlight the existence of a research gap resulting from the finding that these approaches have widely neglected the existence of different types of knowledge. We then elaborate on characteristics of declarative and non-declarative knowledge in general, consider organizations as structures of distributed cognition, and discuss the relationship between organizational knowledge and practice. Subsequently, we examine the role of declarative and non-declarative knowledge in the context of organizational learning. Here, we analyze (1) the cognitive and social mechanisms underlying the development of declarative and non-declarative knowledge within structures of distributed cognition; and (2) the relationship between alterations in declarative and non-declarative types of knowledge on the one hand and changes in organizational practice on the other. Concluding, we discuss implications of our analysis for organizational learning research. We explain how our integrative perspective may offer starting points for a refined understanding of the sub-processes involved in organizational learning and unlearning and may support a better understanding of practical problems related to organizational learning and change. PMID:26483739

Low-cost solar array structure development

NASA Astrophysics Data System (ADS)

Wilson, A. H.

1981-06-01

Early studies of flat-plate arrays have projected costs on the order of $50/square meter for installed array support structures. This report describes an optimized low-cost frame-truss structure that is estimated to cost below $25/square meter, including all markups, shipping an installation. The structure utilizes a planar frame made of members formed from light-gauge galvanized steel sheet and is supposed in the field by treated-wood trusses that are partially buried in trenches. The buried trusses use the overburden soil to carry uplift wind loads and thus to obviate reinforced-concrete foundations. Details of the concept, including design rationale, fabrication and assembly experience, structural testing and fabrication drawings are included.

Low-cost solar array structure development

NASA Technical Reports Server (NTRS)

Wilson, A. H.

1981-01-01

Early studies of flat-plate arrays have projected costs on the order of $50/square meter for installed array support structures. This report describes an optimized low-cost frame-truss structure that is estimated to cost below $25/square meter, including all markups, shipping an installation. The structure utilizes a planar frame made of members formed from light-gauge galvanized steel sheet and is supposed in the field by treated-wood trusses that are partially buried in trenches. The buried trusses use the overburden soil to carry uplift wind loads and thus to obviate reinforced-concrete foundations. Details of the concept, including design rationale, fabrication and assembly experience, structural testing and fabrication drawings are included.

Analysis of Slab-column Shearwall Structure of 6000 Tons Cold Storage

NASA Astrophysics Data System (ADS)

He, Dongqing; Song, Pengwei; Jie, Pengyu

2018-05-01

Combining with the functional requirements, the site conditions and the 6000 tons load characteristics of cold storage, so determine its structure system for the slab-column-shear wall structure. The paper recommends the design of foundation, the settings of column cap, the arrangement of shear wall, the punching shear of floor slab and the analysis and calculation results of main structure. By addition shear wall in slab-column structure to increase the overall stiffness of structure and improve the seismic performance of structure. Take the detached form between the main structure and the external wall insulation, while set anchorage beam between in the main floor and the ring beam along the axis of the column grid to enhance the overall stability of the external wall insulation.

Full load estimation of an offshore wind turbine based on SCADA and accelerometer data

NASA Astrophysics Data System (ADS)

Noppe, N.; Iliopoulos, A.; Weijtjens, W.; Devriendt, C.

2016-09-01

As offshore wind farms (OWFs) grow older, the optimal use of the actual fatigue lifetime of an offshore wind turbine (OWT) and predominantly its foundation will get more important. In case of OWTs, both quasi-static wind/thrust loads and dynamic loads, as induced by turbulence, waves and the turbine's dynamics, contribute to its fatigue life progression. To estimate the remaining useful life of an OWT, the stresses acting on the fatigue critical locations within the structure should be monitored continuously. Unfortunately, in case of the most common monopile foundations these locations are often situated below sea-level and near the mud line and thus difficult or even impossible to access for existing OWTs. Actual strain measurements taken at accessible locations above the sea level show a correlation between thrust load and several SCADA parameters. Therefore a model is created to estimate the thrust load using SCADA data and strain measurements. Afterwards the thrust load acting on the OWT is estimated using the created model and SCADA data only. From this model the quasi static loads on the foundation can be estimated over the lifetime of the OWT. To estimate the contribution of the dynamic loads a modal decomposition and expansion based virtual sensing technique is applied. This method only uses acceleration measurements recorded at accessible locations on the tower. Superimposing both contributions leads to a so-called multi-band virtual sensing. The result is a method that allows to estimate the strain history at any location on the foundation and thus the full load, being a combination of both quasi-static and dynamic loads, acting on the entire structure. This approach is validated using data from an operating Belgian OWF. An initial good match between measured and predicted strains for a short period of time proofs the concept.

Unusual Structure and Magnetism in MnO Nanoclusters

NASA Astrophysics Data System (ADS)

Ganguly, Shreemoyee; Kabir, Mukul; Sanyal, Biplab; Mookerjee, Abhijit

2011-03-01

We report an unusual structural and magnetic evolution in stoichiometric MnO nanoclusters by an extensive and unbiased search through the potential energy surface within density functional theory. The (MnO)n nanoclusters adopt two-dimensional structures in size ranges in which Mnn nanoclusters are three-dimensional and regardless of the size of the nanocluster, the magnetic coupling is found to be antiferromagnetic, and is strikingly different from Mn-based molecular magnets. Both of these features are explained through the inherent electronic structures of the nanoclusters. We gratefully acknowledge financial support from Swedish Research Links program funded by VR/SIDA and Carl Tryggers Foundation, Sweden.

Chief Joseph Dam, Columbia River, Washington, Additional Units and Structural Modification Foundation Report

DTIC Science & Technology

1988-01-01

diameter companion drain holes in the area below the intake structure. The second contract, DACW67-75-C-0042, was awarded to Goodfellow Brothers, Inc. in...tolerances for bolt anchors. Subhori- zontal companion drain holes were drilled adjacent to the rock bolt holes. Negligible ground water was encountered...excavation contract was then modified so that rock excavation would not go below elevation 799 feet. The contractor installed rock bolts and companion drain

Concepts and Objectives for Learning the Structure of English in Grades 7, 8, and 9. Report from the Project on Individually Guided Instruction in English Language, Composition, and Literature.

ERIC Educational Resources Information Center

Pooley, Robert C.; Golub, Lester S.

Emphasizing the behavioral and social aspects of language as a foundation for instruction, 16 concepts for learning the structure of English in grades 7-9 are outlined in an attempt to set down in logical order the basic concepts involved in the understanding of the English language. The concepts begin with a recognition of the social purposes of…

A Top-down versus a Bottom-up Hidden-variables Description of the Stern-Gerlach Experiment

NASA Astrophysics Data System (ADS)

Arsenijević, M.; Jeknić-Dugić, J.; Dugić, M.

We employ the Stern-Gerlach experiment to highlight the basics of a minimalist, non-interpretational top-down approach to quantum foundations. Certain benefits of the "quantum structural studies" (QSS) highlightedhere are detected and discussed. While the top-down approach can be described without making any reference to the fundamental structure of a closed system, the hidden variables (HV) theory á la Bohm proves to be more subtle than it is typically regarded.

Identification of moving sinusoidal wave loads for sensor structural configuration by finite element inverse method

NASA Astrophysics Data System (ADS)

Zhang, B.; Yu, S.

2018-03-01

In this paper, a beam structure of composite materials with elastic foundation supports is established as the sensor model, which propagates moving sinusoidal wave loads. The inverse Finite Element Method (iFEM) is applied for reconstructing moving wave loads which are compared with true wave loads. The conclusion shows that iFEM is accurate and robust in the determination of wave propagation. This helps to seek a suitable new wave sensor method.

Centrifuge modeling of rocking-isolated inelastic RC bridge piers

PubMed Central

Loli, Marianna; Knappett, Jonathan A; Brown, Michael J; Anastasopoulos, Ioannis; Gazetas, George

2014-01-01

Experimental proof is provided of an unconventional seismic design concept, which is based on deliberately underdesigning shallow foundations to promote intense rocking oscillations and thereby to dramatically improve the seismic resilience of structures. Termed rocking isolation, this new seismic design philosophy is investigated through a series of dynamic centrifuge experiments on properly scaled models of a modern reinforced concrete (RC) bridge pier. The experimental method reproduces the nonlinear and inelastic response of both the soil-footing interface and the structure. To this end, a novel scale model RC (1:50 scale) that simulates reasonably well the elastic response and the failure of prototype RC elements is utilized, along with realistic representation of the soil behavior in a geotechnical centrifuge. A variety of seismic ground motions are considered as excitations. They result in consistent demonstrably beneficial performance of the rocking-isolated pier in comparison with the one designed conventionally. Seismic demand is reduced in terms of both inertial load and deck drift. Furthermore, foundation uplifting has a self-centering potential, whereas soil yielding is shown to provide a particularly effective energy dissipation mechanism, exhibiting significant resistance to cumulative damage. Thanks to such mechanisms, the rocking pier survived, with no signs of structural distress, a deleterious sequence of seismic motions that caused collapse of the conventionally designed pier. © 2014 The Authors Earthquake Engineering & Structural Dynamics Published by John Wiley & Sons Ltd. PMID:26300573

Cultivating Peace through Design Thinking: Problem Solving with PAST Foundation

ERIC Educational Resources Information Center

Deaner, Kat; McCreery-Kellert, Heather

2018-01-01

Design thinking is a methodology that emphasizes reasoning and decision-making as part of the problem-solving process. It is a structured framework for identifying challenges, gathering information, generating potential solutions, refining ideas, and testing solutions. Design thinking offers valuable skills that will serve students well as they…

An Integrated Approach to Thermodynamics in the Introductory Physics Course.

ERIC Educational Resources Information Center

Alonso, Marcelo; Finn, Edward J.

1995-01-01

Presents an approach to combine the empirical approach of classical thermodynamics with the structural approach of statistical mechanics. Topics covered include dynamical foundation of the first law; mechanical work, heat, radiation, and the first law; thermal equilibrium; thermal processes; thermodynamic probability; entropy; the second law;…

Some Big Questions about Design in Educational Technology

ERIC Educational Resources Information Center

Gibbons, Andrew S.

2016-01-01

This article asks five questions that lead us to the foundations of design practice in educational technology. Design processes structure time, space, place, activity, role, goal, and resource. For educational technology to advance in its understanding of design practice, it must question whether we have clear conceptions of how abstract…

Secrets of a Mass Grave

ERIC Educational Resources Information Center

Ament, Caitlin Marie; Graham, Theodore J.

2017-01-01

This article presents a unit of study in which students examine skeletons and draw conclusions from the evidence they find in a simulated mass grave. The activity involves the foundation of forensic anthropology--interpreting the structure of skeletal remains to determine sex, age, height, and possible cause of death. Working through a series of…

Ideologies "of" English Language Teaching in Iranian Academic Research: Mainstream, Alternative, and Beyond

ERIC Educational Resources Information Center

Mirhosseini, Seyyed-Abdolhamid; Ghafar Samar, Reza

2015-01-01

Mainstream trends of English language teaching (ELT) are predominantly constructed within the epistemological boundaries shaped by the traditional conceptions of linguistics, learning, and teaching as well as positivist research methodology. What tends to be overshadowed by such conceptions is the underlying foundational belief structure of ELT…

38 CFR 36.4701 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... having special flood hazards. (e) Designated loan means a loan secured by a building or mobile home that...) Mobile home means a structure, transportable in one or more sections, that is built on a permanent chassis and designed for use with or without a permanent foundation when attached to the required...

Creating CHAOS for Smart, Troubled High-Riskers

ERIC Educational Resources Information Center

Grimes, Rich

2006-01-01

The acronym CHAOS (Caring, Honesty, Accountability, Ownership, and Success), provides the foundation, structure, and relational components for an environment with all school community members focused on one essential goal--the success of all students. In this article, the author discusses the plight of "troubled" students and discusses the need to…

Building Phrase Structure from Items and Contexts

ERIC Educational Resources Information Center

McKinney-Bock, Katherine S.

2013-01-01

This dissertation aims to revisit foundational issues in syntactic theory regarding cyclicity and displacement. I take narrow syntax to operate over domains ("phases") more local than in current Minimalism. To do this, I define a notion of "phase overlap" which involves the sharing of grammatical features across two independent…

Wisconsin H-Alpha Mapper | UW-Madison Astronomy

Science.gov Websites

Department of Astronomy Wisconsin H-Alpha Mapper Overview Description About WHAM Fabry-Perot Spectroscopy National Science Foundation Astronomy and... 02.20.2012 | Continue Reading » WHAM featured at Natural Astronomy Galactic Structure GALFA GLIMPSE GLIMPSE360 WHAM Extragalactic Astronomy & Cosmology Local

Phase I of roadmap towards incorporating intelligent structure technology for refining bridge inspection in Mississippi.

DOT National Transportation Integrated Search

2011-02-25

"Bridge scour refers to the removal of sediments from the bridge foundation by flood. It is the most detrimental cause for the majority of : bridge failures in the United States. In the National Bridge Registry, there are 484,546 highway bridges over...

Forest dynamics following eastern hemlock mortality in the southern Appalachians

Treesearch

Chelcy R. Ford; Katherine J. Elliott; Barton D. Clinton; Brian D. Kloeppel; James M. Vose

2011-01-01

Understanding changes in community composition caused by invasive species is critical for predicting effects on ecosystem function, particularly when the invasive threatens a foundation species. Here we focus on dynamics of forest structure, composition and microclimate, and how these interact in southern Appalachian riparian forests following invasion by hemlock...

Extending the Humanistic Vision: Toward a Humanities Foundation for the Counseling Profession

ERIC Educational Resources Information Center

Hansen, James T.

2012-01-01

Founding humanists argued that counseling should be ideologically grounded in the humanities. Currently, professional counseling culture is largely structured by scientific assumptions, which, the author maintains, have had a detrimental impact on the profession. Specific recommendations for shifting professional counseling culture to a humanities…

Optimization of Peripheral Vision.

DTIC Science & Technology

1986-11-01

2 References * . . . . . . . . . . . . . . . . . . . . . . . 3 2.* ANATOMICAL FOUNDATIONS OF THE TWO SUBSYSTEMS Primary visualp...athways .......... 6 Retinal layers . . . . . . . . . . . .... ....... 7 Nerves, tracts, and midbrain structures . . . . . . . . . 7 Primary cortaara...perhaps the ambient system can be used as a second primary source of information. One reason that its use in this respect is limited is that the

Postmodernism and the Implications for Educational Leadership: National Implications

ERIC Educational Resources Information Center

Anthony, Taiwanna D.; Kritsonis, William Allan; Herrington, David E.

2007-01-01

One could argue that postmodernism is the wave of the future. To fully gain a comprehensive understanding of the function of postmodernisn one must first obtain a comprehensive understanding of the structured component of postmodernism. The Epistemological aspect of the postmodernisn leadership paradigm model provides the foundation we as…

Recent Trends in Human Resource Development. Japanese Industrial Relations Series 17.

ERIC Educational Resources Information Center

Amaya, Tadashi

This paper discusses human resources development (HRD) in Japanese industry. Chapter I addresses changing industrial and occupational structures as a foundation for planning and constructing management strategy, especially for business restructuring. The actual situation regarding business diversification is considered, and an attempt is made to…

Architectural Theory in the Undergraduate Curriculum: A Pedagogical Alternative

ERIC Educational Resources Information Center

Smith, Korydon H.

2013-01-01

The study of architectural theory remains absent from many undergraduate design programs, or, if present, the structure of many curricula place "theory" as an autonomous, peripheral course. Theory, however, as it is in other disciplines, is the foundation of the discipline of architecture. To regain the importance and vitality of…

Theoretical Foundations for Enhancing Social Connectedness in Online Learning Environments

ERIC Educational Resources Information Center

Slagter van Tryon, Patricia J.; Bishop, M. J.

2009-01-01

Group social structure provides a comfortable and predictable context for interaction in learning environments. Students in face-to-face learning environments process social information about others in order to assess traits, predict behaviors, and determine qualifications for assuming particular responsibilities within a group. In online learning…

Inter-Cultural Communication: A Foundation of Communicative Action

ERIC Educational Resources Information Center

Vuckovic, Aleksandra

2008-01-01

Purpose: The purpose of this paper is to present a model of inter-cultural communication that enumerates and structures latent factors affecting such communication and elaborates on the process of self-reflection as a guiding mechanism of successful communication. Design/methodology/approach: The five factors and various moderators that are…

The Value of Significant Learning Strategies in Undergraduate Education

ERIC Educational Resources Information Center

Coco, Charles M.

2012-01-01

Learning taxonomies can assist faculty in developing course structures that promote enhanced student learning in the cognitive and affective domains. Significant Learning is one approach to course design that allows for development in six key areas: Foundational Knowledge, Application, Integration, Human Dimension, Caring, and Learning How to…

Linking Decisions to Stakeholder Values in the Guanica Bay Watershed, Puerto Rico

EPA Science Inventory

This presentation lays the foundation for the session by introducing the Structured Decision-Making (SDM) approach that is being used by the Environmental Protection Agency (EPA) in the Guánica Bay watershed of southwestern Puerto Rico. EPA is working with other agencies i...

Investigation of pile setup (freeze) in Alabama : development of a setup prediction method and implementation into LRFD driven pile design.

DOT National Transportation Integrated Search

2015-06-01

The Alabama Department of Transportation (ALDOT) often uses deep foundations : consisting of driven piles, particularly in the southern half of the state, to support bridges or other : highway structures. In the fiscal year 2012, a total of 22 bridge...

Post-Secularism, Religious Knowledge and Religious Education

ERIC Educational Resources Information Center

Carr, David

2012-01-01

Post-secularism seems to follow in the wake of other (what are here called) "postal" perspectives--post-structuralism, postmodernism, post-empiricism, post-positivism, post-analytical philosophy, post-foundationalism and so on--in questioning or repudiating what it takes to be the epistemic assumptions of "modernism." To be sure, post-secularism…

Transaction Circles with Digital Texts as a Foundation for Democratic Practices

ERIC Educational Resources Information Center

Brown, Sally

2015-01-01

Transaction circles weave together elements of guided reading and literature circles in an open conversational structure that supports students as agentive learners. Discourse within these circles utilizing digital informational texts assist in the development of democratic practices even in a time when federal mandates limit curricula and…

Establishing a Taxonometric Structure for the Study of Biotechnology in Secondary School Technology Education.

ERIC Educational Resources Information Center

Wells, John G.

1994-01-01

A Delphi panel of 19 experts identified 8 main knowledge areas of biotechnology: bioprocessing, foundations, genetic engineering, agriculture, biochemistry, medicine, environment, and bioethics. Round 2 elicited 84 subdivisions and round 3 adjusted the ratings. The resulting classification suggests a different context and focus for technology…

Integrative Approach for a Transformative Freshman-Level STEM Curriculum

ERIC Educational Resources Information Center

D'Souza, Malcolm J.; Curran, Kathleen L.; Olsen, Paul E.; Nwogbaga, Agashi P.; Stotts, Stephanie

2016-01-01

In 2014 Wesley College adopted a unified undergraduate program of evidence-based high-impact teaching practices. Through foundation and federal and state grant support, the college completely revised its academic core curriculum and strengthened its academic support structures by including a comprehensive early alert system for at-risk students.…

A Guided Reinvention of Ring, Integral Domain, and Field

ERIC Educational Resources Information Center

Cook, John Paul

2012-01-01

Abstract algebra enjoys a prestigious position in mathematics and the undergraduate mathematics curriculum. A typical abstract algebra course aims to provide students with a glimpse into the elegance of mathematics by exposing them to structures that form its foundation--it arguably approximates the actual practice of mathematics better than any…

Aerothermodynamics and Turbulence

DTIC Science & Technology

2013-03-08

Surface Heat Transfer and Detailed Flow Structure Fuel Injection in a Scramjet Combustor Reduced Uncertainty in Complex Flows Addressing... hypersonic flight data to capture shock interaction unsteadiness National Hypersonic Foundational Research Plan Joint Technology Office... Hypersonics Basic Science Roadmap Assessment of SOA and Future Research Directions Ongoing Basic Research for Understanding and Controlling Noise

FOOD WEB STRUCTURE AS A POTENTIAL INDICATOR OF NUTRIENT ENRICHMENT IN GREAT LAKES COASTAL WETLANDS

EPA Science Inventory

Analyses of the food webs of Great Lakes coastal wetlands verify the role of algae as an energetic foundation, and also suggest that fundamental changes occur in response to both natural and anthropogenic influences. We analyzed coastal wetlands with a range of nutrient concentra...

29 CFR 1926.1052 - Stairways.

Code of Federal Regulations, 2011 CFR

2011-07-01

...° from horizontal. (3) Riser height and tread depth shall be uniform within each flight of stairs, including any foundation structure used as one or more treads of the stairs. Variations in riser height or... having four or more risers or rising more than 30 inches (76 cm), whichever is less, shall be equipped...

29 CFR 1926.1052 - Stairways.

Code of Federal Regulations, 2012 CFR

2012-07-01

...° from horizontal. (3) Riser height and tread depth shall be uniform within each flight of stairs, including any foundation structure used as one or more treads of the stairs. Variations in riser height or... having four or more risers or rising more than 30 inches (76 cm), whichever is less, shall be equipped...

29 CFR 1926.1052 - Stairways.

Code of Federal Regulations, 2010 CFR

2010-07-01

...° from horizontal. (3) Riser height and tread depth shall be uniform within each flight of stairs, including any foundation structure used as one or more treads of the stairs. Variations in riser height or... having four or more risers or rising more than 30 inches (76 cm), whichever is less, shall be equipped...

29 CFR 1926.1052 - Stairways.

Code of Federal Regulations, 2013 CFR

2013-07-01

...° from horizontal. (3) Riser height and tread depth shall be uniform within each flight of stairs, including any foundation structure used as one or more treads of the stairs. Variations in riser height or... having four or more risers or rising more than 30 inches (76 cm), whichever is less, shall be equipped...

29 CFR 1926.1052 - Stairways.

Code of Federal Regulations, 2014 CFR

2014-07-01

...° from horizontal. (3) Riser height and tread depth shall be uniform within each flight of stairs, including any foundation structure used as one or more treads of the stairs. Variations in riser height or... having four or more risers or rising more than 30 inches (76 cm), whichever is less, shall be equipped...

Creating Contexts for Middle-Age Learning.

ERIC Educational Resources Information Center

Stone, Sandra J.

1998-01-01

Presents the theories of Vygotsky and Bandura that provide the foundation for research on cross-age learning in multiple-age groupings. Discusses the cognitive, social, and emotional benefits children derive from mixed-age groupings. Outlines social learning contexts, such as learning centers and projects, and structural contexts, such as multiage…

The structure and elasticity of phase B silicates under high pressure by first principles simulation

NASA Astrophysics Data System (ADS)

Liu, Lei; Yi, Li; Liu, Hong; Li, Ying; Zhuang, Chun-Qiang; Yang, Long-Xing; Liu, Gui-Ping

2018-04-01

Not Available Project supported by the Science Fund from the Key Laboratory of Earthquake Prediction, Institute of Earthquake Science, China Earthquake Administration (Grant No. 2016IES010104) and the National Natural Science Foundation of China (Grant Nos. 41174071, 41273073, 41373060, and 41573121).

[Nursing research and positivism].

PubMed

de Almeida, A M; de Oliveira, E R; Garcia, T R

1996-04-01

The authors discuss positivism foundations; the most remarkable influences to comtian's philosophy structuration; how Comte's ideas, as doctrine in so far as method, dominate society's thoughts, passing beyond XIX century and reaching XX century; and how the positivist doctrine and empirical method influenced Nursing conceptions about science and about human being/environment/disease.

Photocopy of drawing (original drawing of War Department Theater in ...

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

Photocopy of drawing (original drawing of War Department Theater in possession of MacDill Air Force Base, Civil Engineering, Tampa, Florida; 1940 architectural drawings by Construction Division, Office of the Quartermaster General)STRUCTURAL - FOUNDATIONS - MacDill Air Force Base, Base Theater, 2420 Florida Keys Avenue, Tampa, Hillsborough County, FL

Cultural Competence in Nursing: Foundation or Fallacy?

ERIC Educational Resources Information Center

Dreher, Melanie; MacNaughton, Neil

2002-01-01

The recommendations for nurses to become culturally competent fall into two categories. The first focuses on the content and structure of the encounter between provider and patient; the second charges providers with becoming knowledge about the culture of their patients. Cultural competence is really nursing competence--the capacity to be equally…

Reducing seismic risk to highway mobility : assessment and design of pile foundations affected by lateral loading.

DOT National Transportation Integrated Search

2013-04-01

Damage in pile supported structures due to liquefaction and liquefaction induced deformation were reported in past earthquakes around the world (eg, Ansal et al. 1999, Seed et al. 1990, EERI 2010, EERI 2011, GEER 2010a, GEER 2010b, GEER 2011). For ex...

Laying the Foundation for Multiplicative Thinking in Year 2

ERIC Educational Resources Information Center

Watson, Kelly

2016-01-01

In order for students to move from using concrete materials to using mental strategies and from additive to multiplicative thinking, the use of arrays and visualisation is pivotal. This article describes a lesson in which students are taken through a Concrete-Representational-Abstract (CRA) approach that involves noticing structure, using…

Culture, Leadership, and Activism: Translating Fink's Taxonomy of Significant Learning into Pedagogical Practice

ERIC Educational Resources Information Center

Jenkins, Toby S.

2016-01-01

Through the article, I share the theoretical foundations, structure, knowledge acquisition, and outcomes of a cultural leadership course. The process for course development integrates several theories and research methods into practice: L. Dee Fink's Taxonomy of Significant Learning, Feminist Theory, Critical Race Theory, and…

A marketing matrix for health care organizations.

PubMed

Weaver, F J; Gombeski, W R; Fay, G W; Eversman, J J; Cowan-Gascoigne, C

1986-06-01

Irrespective of the formal marketing structure successful marketing for health care organizations requires the input on many people. Detailed here is the Marketing Matrix used at the Cleveland Clinic Foundation in Cleveland, Ohio. This Matrix is both a philosophy and a tool for clarifying and focusing the organization's marketing activities.

Bridge pier foundation evaluation using cross-hole seismic tomographic imaging

NASA Astrophysics Data System (ADS)

Butchibabu, B.; Sandeep, N.; Sivaram, Y. V.; Jha, P. C.; Khan, P. K.

2017-09-01

An ambitious project connecting Jammu and Srinagar through a railway link in tectonically active and geologically complex Himalayan Mountain terrain is under progress. Under this project, the world's highest (359 m) railway arch-bridge is under construction across the River Chenab in the northern territory of India. This mega engineering structure has a two-fold ribbed arch design, comprising of steel girders. During the excavation for one of the concrete pillars on the right abutment, wide open joints and weak/shear zones were noticed. The width of these joints varies from 30 to 50 cm, trending along N170° with a dip of 65°. The foundation area of this pillar is 13 m × 24 m and on the cut slopes of the right bank of Chenab River. These exposed joints and weak zones were treated with consolidation grouting to strengthen the foundation area. To delineate the extent of these joints and weak zones below the foundation level, seismic tomography was carried out in five boreholes drilled for this purpose to cover the 300 sq-m area. The results of cross-hole seismic tomography reveals the presence of three low velocity (≤ 2600 m/s) anomalous zones below the foundation area. This also ascertained the efficacy of grouting in consolidating the joints and weak zones. Later, rock-mass quality (Q) was determined based on the relationship between the P-wave velocity and the Q-value (Barton, 2002) to infer the support system for the slope stabilization below the foundation. 3-D visualization of the seismic velocity demarcates the extent of weak or untreated zones. This methodology facilitates to update the design parameters according to Q-values during the construction stage and estimate the required level of reinforcement and support system. Similar methodology can be applicable in other areas under same site conditions.

The 't Hooft vertex for staggered fermions and flavor-singlet mesons

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

Donald, Gordon C.; Davies, Christine T.H.; Follana, Eduardo

2011-01-01

We derive the ’t Hooft vertex for staggered fermions and examine its symmetries for nonzero lattice spacing. We also derive a set of structural properties for the eigenvectors of the staggered Dirac operator, which should emerge in the continuum limit, if staggered fermions yield four species. This property also is needed for flavor-taste-singlet correlators to behave correctly. We then test numerically whether the needed structure arises: it does. This structure and symmetry of (unrooted) staggered fermions also imply that Creutz’s (latest) objections to the rooted determinant are without foundation.

Protein backbone engineering as a strategy to advance foldamers toward the frontier of protein-like tertiary structure.

PubMed

Reinert, Zachary E; Horne, W Seth

2014-11-28

A variety of non-biological structural motifs have been incorporated into the backbone of natural protein sequences. In parallel work, diverse unnatural oligomers of de novo design (termed "foldamers") have been developed that fold in defined ways. In this Perspective article, we survey foundational studies on protein backbone engineering, with a focus on alterations made in the context of complex tertiary folds. We go on to summarize recent work illustrating the potential promise of these methods to provide a general framework for the construction of foldamer mimics of protein tertiary structures.

Contribution to Estimating Bearing Capacity of Pile in Clayey Soils

NASA Astrophysics Data System (ADS)

Drusa, Marián; Gago, Filip; Vlček, Jozef

2016-12-01

The estimation of real geotechnical parameters is key factor for safe and economic design of geotechnical structures. One of these are pile foundations, which require proper design and evaluation due to accessing more deep foundation soil and because remediation work of not bearable piles or broken piles is a crucial operation. For this reason, geotechnical field testing like cone penetration test (CPT), standard penetration (SPT) or dynamic penetration test (DP) are realized in order to receive continuous information about soil strata. Comparing with rotary core drilling type of survey with sampling, these methods are more progressive. From engineering geologist point of view, it is more important to know geological characterization of locality but geotechnical engineers have more interest above the real geotechnical parameters of foundation soils. The role of engineering geologist cannot be underestimated because important geological processes in origin or during history can explain behaviour of a geological environment. In effort to streamline the survey, investigation by penetration tests is done as it is able to provide enough information for designers. This paper deals with actual trends in pile foundation design; because there are no new standards and usable standards are very old. Estimation of the bearing capacity of a single pile can be demonstrated on the example of determination of the cone factor Nk from CPT testing. Then results were compared with other common methods.

How deaf American Sign Language/English bilingual children become proficient readers: an emic perspective.

PubMed

Mounty, Judith L; Pucci, Concetta T; Harmon, Kristen C

2014-07-01

A primary tenet underlying American Sign Language/English bilingual education for deaf students is that early access to a visual language, developed in conjunction with language planning principles, provides a foundation for literacy in English. The goal of this study is to obtain an emic perspective on bilingual deaf readers transitioning from learning to read to reading to learn. Analysis of 12 interactive, semi-structured interviews identified informal and formal teaching and learning practices in ASL/English bilingual homes and classrooms. These practices value, reinforce, and support the bidirectional acquisition of both languages and provide a strong foundation for literacy. © The Author 2013. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

The use of a numerical method to justify the criteria for the maximum settlement of the tank foundation

NASA Astrophysics Data System (ADS)

Tarasenko, Alexander; Chepur, Petr; Gruchenkova, Alesya

2017-11-01

The article examines the problem of assessing the permissible values of uneven settlement for a vertical steel tank base and foundation. A numerical experiment was performed using a finite element model of the tank. The model took into account the geometric shape of the structure and its additional stiffening elements that affect the stress-strain state of the tank. An equation was obtained that allowed determining the maximum possible deformation of the bottom outer contour during uneven settlement. Depending on the length of the uneven settlement zone, the values of the permissible settlement of the tank base were determined. The article proposes new values of the maximum permissible tank settlement with additional stiffening elements.

Modeling the temperature-dependent peptide vibrational spectra based on implicit-solvent model and enhance sampling technique

NASA Astrophysics Data System (ADS)

Tianmin, Wu; Tianjun, Wang; Xian, Chen; Bin, Fang; Ruiting, Zhang; Wei, Zhuang

2016-01-01

We herein review our studies on simulating the thermal unfolding Fourier transform infrared and two-dimensional infrared spectra of peptides. The peptide-water configuration ensembles, required forspectrum modeling, aregenerated at a series of temperatures using the GBOBC implicit solvent model and the integrated tempering sampling technique. The fluctuating vibrational Hamiltonians of the amide I vibrational band are constructed using the Frenkel exciton model. The signals are calculated using nonlinear exciton propagation. The simulated spectral features such as the intensity and ellipticity are consistent with the experimental observations. Comparing the signals for two beta-hairpin polypeptides with similar structures suggests that this technique is sensitive to peptide folding landscapes. Project supported by the National Natural Science Foundation of China (Grant No. 21203178), the National Natural Science Foundation of China (Grant No. 21373201), the National Natural Science Foundation of China (Grant No. 21433014), the Science and Technological Ministry of China (Grant No. 2011YQ09000505), and “Strategic Priority Research Program” of the Chinese Academy of Sciences (Grant Nos. XDB10040304 and XDB100202002).

Exact nonstationary responses of rectangular thin plate on Pasternak foundation excited by stochastic moving loads

NASA Astrophysics Data System (ADS)

Chen, Guohai; Meng, Zeng; Yang, Dixiong

2018-01-01

This paper develops an efficient method termed as PE-PIM to address the exact nonstationary responses of pavement structure, which is modeled as a rectangular thin plate resting on bi-parametric Pasternak elastic foundation subjected to stochastic moving loads with constant acceleration. Firstly, analytical power spectral density (PSD) functions of random responses for thin plate are derived by integrating pseudo excitation method (PEM) with Duhamel's integral. Based on PEM, the new equivalent von Mises stress (NEVMS) is proposed, whose PSD function contains all cross-PSD functions between stress components. Then, the PE-PIM that combines the PEM with precise integration method (PIM) is presented to achieve efficiently stochastic responses of the plate by replacing Duhamel's integral with the PIM. Moreover, the semi-analytical Monte Carlo simulation is employed to verify the computational results of the developed PE-PIM. Finally, numerical examples demonstrate the high accuracy and efficiency of PE-PIM for nonstationary random vibration analysis. The effects of velocity and acceleration of moving load, boundary conditions of the plate and foundation stiffness on the deflection and NEVMS responses are scrutinized.

Seeking an Expanded, Multidimensional Conceptual Approach to Health Literacy and Health Disparities Research.

PubMed

Logan, Robert A

2017-01-01

This chapter compares the conceptual foundations of health literacy and health disparities. It details some of the conceptual differences between health literacy and health disparities and explains some similarities that suggest the need for increased research collaboration. The chapter is among the first to address the structural and social determinants of health together and explain that future research needs to assess their interactions. Overall, the chapter creates a conceptual foundation as well as challenges future scholars/practitioners to take more multidimensional approaches to assess health's determinants. The chapter also attempts to demonstrate there is nothing more practical than good theory, or clear conceptual foundations. The chapter is divided into four sections that address the following topics: three conceptual frameworks about the determinants of health; opportunities in health disparities and health literacy research; seeking an expanded, multidimensional conceptual approach to health literacy and health disparities research; as well as a conclusion. The chapter suggests there are vacuums in current research knowledge that need future attention - especially regarding the integration of health literacy and health disparities research.

Influence of the Soil Genesis on Physical and Mechanical Properties

PubMed Central

Marschalko, Marian; Yilmaz, Işık; Fojtová, Lucie; Kubečka, Karel; Bouchal, Tomáš; Bednárik, Martin

2013-01-01

The paper deals with the influence of soil genesis on the physical-mechanical properties. The presented case study was conducted in the region of the Ostrava Basin where there is a varied genetic composition of the Quaternary geological structure on the underlying Neogeneous sediments which are sediments of analogous granulometry but different genesis. In this study, 7827 soil samples of an eolian, fluvial, glacial, and deluvial origin and their laboratory analyses results were used. The study identified different values in certain cases, mostly in coarser-grained foundation soils, such as sandy loam S4 (MS) and clayey sand F4 (CS). The soils of the fluvial origin manifest different values than other genetic types. Next, based on regression analyses, dependence was proved neither on the deposition depth (depth of samples) nor from the point of view of the individual foundation soil classes or the genetic types. The contribution of the paper is to point at the influence of genesis on the foundation soil properties so that engineering geologists and geotechnicians pay more attention to the genesis during engineering-geological and geotechnical investigations. PMID:23844398

Mathematical foundations of biomechanics.

PubMed

Niederer, Peter F

2010-01-01

The aim of biomechanics is the analysis of the structure and function of humans, animals, and plants by means of the methods of mechanics. Its foundations are in particular embedded in mathematics, physics, and informatics. Due to the inherent multidisciplinary character deriving from its aim, biomechanics has numerous connections and overlapping areas with biology, biochemistry, physiology, and pathophysiology, along with clinical medicine, so its range is enormously wide. This treatise is mainly meant to serve as an introduction and overview for readers and students who intend to acquire a basic understanding of the mathematical principles and mechanics that constitute the foundation of biomechanics; accordingly, its contents are limited to basic theoretical principles of general validity and long-range significance. Selected examples are included that are representative for the problems treated in biomechanics. Although ultimate mathematical generality is not in the foreground, an attempt is made to derive the theory from basic principles. A concise and systematic formulation is thereby intended with the aim that the reader is provided with a working knowledge. It is assumed that he or she is familiar with the principles of calculus, vector analysis, and linear algebra.

User's guide to computer program CIVM-JET 4B to calculate the transient structural responses of partial and/or complete structural rings to engine-rotor-fragment impact

NASA Technical Reports Server (NTRS)

Stagliano, T. R.; Spilker, R. L.; Witmer, E. A.

1976-01-01

A user-oriented computer program CIVM-JET 4B is described to predict the large-deflection elastic-plastic structural responses of fragment impacted single-layer: (a) partial-ring fragment containment or deflector structure or (b) complete-ring fragment containment structure. These two types of structures may be either free or supported in various ways. Supports accommodated include: (1) point supports such as pinned-fixed, ideally-clamped, or supported by a structural branch simulating mounting-bracket structure and (2) elastic foundation support distributed over selected regions of the structure. The initial geometry of each partial or complete ring may be circular or arbitrarily curved; uniform or variable thicknesses of the structure are accommodated. The structural material is assumed to be initially isotropic; strain hardening and strain rate effects are taken into account.

Geotechnical centrifuge use at University of Cambridge Geotechnical Centre, August-September 1991

NASA Astrophysics Data System (ADS)

Gilbert, Paul A.

1992-01-01

A geotechnical centrifuge applies elevated acceleration to small-scale soil models to simulate body forces and stress levels characteristic of full-size soil structures. Since the constitutive behavior of soil is stress level development, the centrifuge offers considerable advantage in studying soil structures using models. Several experiments were observed and described in relative detail, including experiments in soil dynamics and liquefaction study, an experiment investigation leaning towers on soft foundations, and an experiment investigating migration of hot pollutants through soils.

Synthesis of Railroad Design Methods, Track Response Models, and Evaluation Methods for Military Railroads.

DTIC Science & Technology

1985-03-01

economically justified. For main lines, access tracks, heavy traffic tracks, and tracks where the de- sign train speed is greater than 40 mph, TM 5... analysis 35. The beam-on-elastic-foundation model is the key to the AREA design procedure. Kerr in "Problems and Needs in Track Structure Design and... Analysis " (Kerr 1977) presents an outline of the development of this model for analysis of track structures. The fundamental differential equation which

Research on Characteristics of New Energy Dissipation With Symmetrical Structure

NASA Astrophysics Data System (ADS)

Ming, Wen; Huang, Chun-mei; Huang, Hao-wen; Wang, Xin-fang

2018-03-01

Utilizing good energy consumption capacity of arc steel bar, a new energy dissipation with symmetrical structure was proposed in this article. On the base of collection experimental data of damper specimen Under low cyclic reversed loading, finite element models were built by using ANSYS software, and influences of parameter change (Conduction rod diameter, Actuation plate thickness, Diameter of arc steel rod, Curved bars initial bending) on energy dissipation performance were analyzed. Some useful conclusions which can lay foundations for practical application were drawn.

Waco Lake, Bosque River, Texas, Brazos River and Tributaries, Texas. Embankment Criteria, Performance and Foundation Report

DTIC Science & Technology

1990-01-01

aquifers is separated from the other by relatively impervious formations. Piezometric elevations (developed from water well inventory data) range from...350 to +400 MSL. The piezometric contours developed from water levels of the Glen Rose, Hensel and Hosston Formations show a definite cone of...Regional Geology 8 3-02 Site Geology 10 3-03 Weathering 18 3-04 Structural Geology 18 3-05 Grouna°- Water Conditions SECTION 4 - STRUCTURES 4-01 Outlet

Structural Analysis Computer Programs for Rigid Multicomponent Pavement Structures with Discontinuities--WESLIQID and WESLAYER. Report 1. Program Development and Numerical Presentations.

DTIC Science & Technology

1981-05-01

represented as a Winkler foundation. The program can treat any number of slabs connected by steel bars or other load trans- fer devices at the joints...dimensional finite element method. The inherent flexibility of such an approach permits the analysis of a rigid pavement with steel bars and stabilized...layers and provides an efficient tool for analyzing stress conditions at the joint. Unfor- tunately, such a procedure would require a tremendously

Combining Narrative and Structured Approaches to Conducting a Workshop: Evaluation of an Intellectual Capital Framework for Defence

DTIC Science & Technology

2005-12-01

other hand, would begin by asking participants to tell stories about the issue under study . The only ‘rules’ beyond this point are that stories should...under study , as well as identification of other key issues. Using this as a foundation, the workshop was then moved into a more structured environment...found when exploring concepts of C2 within the ADF and as such this methodology has significant application to future studies of C2. Reference

Repair, Evaluation, Maintenance, and Rehabilitation Research Program. Instrumentation Automation for Concrete Structures. Report 2. Automation Hardware and Retrofitting Techniques.

DTIC Science & Technology

1987-06-01

head. The electrical connection points are embedded in silicone sealing compound. The photo elements are varnished; the mirrors are chromium-plated metal...control of barrage walls and retaining dams using reversible pendulums, the suspension points of which are located in boreholes deep under the structure in...rock layers that can very probably be considered as invariable relation points . A measuring device installed in the foundation area of a barrage wall

A computational study of the chemokine receptor CXCR1 bound with interleukin-8

NASA Astrophysics Data System (ADS)

Wang, Yang; Severin Lupala, Cecylia; Wang, Ting; Li, Xuanxuan; Yun, Ji-Hye; Park, Jae-hyun; Jin, Zeyu; Lee, Weontae; Tan, Leihan; Liu, Haiguang

2018-03-01

CXCR1 is a G-protein coupled receptor, transducing signals from chemokines, in particular the interleukin-8 (IL8) molecules. This study combines homology modeling and molecular dynamics simulation methods to study the structure of CXCR1-IL8 complex. By using CXCR4-vMIP-II crystallography structure as the homologous template, CXCR1-IL8 complex structure was constructed, and then refined using all-atom molecular dynamics simulations. Through extensive simulations, CXCR1-IL8 binding poses were investigated in detail. Furthermore, the role of the N-terminal of CXCR1 receptor was studied by comparing four complex models differing in the N-terminal sequences. The results indicate that the receptor N-terminal affects the binding of IL8 significantly. With a shorter N-terminal domain, the binding of IL8 to CXCR1 becomes unstable. The homology modeling and simulations also reveal the key receptor-ligand residues involved in the electrostatic interactions known to be vital for complex formation. Project supported by the National Natural Science Foundation of China (Grant Nos. 11575021, U1530401, and U1430237) and the National Research Foundation of Korea (Grant Nos. NRF-2017R1A2B2008483 and NRF-2016R1A6A3A04010213).

Comparision between Ga- and N-polarity InGaN solar cells with gradient-In-composition intrinsic layers

NASA Astrophysics Data System (ADS)

Lu, Lin; Li, Ming-Chao; Lv, Chen; Gao, Wen-Gen; Jiang, Ming; Xu, Fu-Jun; Chen, Qi-Gong

2016-10-01

Performances of Ga- and N-polarity solar cells (SCs) adopting gradient-In-composition intrinsic layer (IL) are compared. It is found the gradient ILs can greatly weaken the negative influence from the polarization effects for the Ga- polarity case, and the highest conversion efficiency (η) of 2.18% can be obtained in the structure with a linear increase of In composition in the IL from bottom to top. This is mainly attributed to the adsorptions of more photons caused by the higher In composition in the IL closer to the p-GaN window layer. In contrast, for the N-polarity case, the SC structure with an InGaN IL adopting fixed In composition prevails over the ones adopting the gradient-In-composition IL, where the highest η of 9.28% can be obtained at x of 0.62. N-polarity SC structures are proven to have greater potential preparations in high-efficient InGaN SCs. Project supported by the National Natural Science Foundation of China (Grant Nos. 61306108, 61172131, and 61271377), the Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China (Grant No. 2013693), and the Anhui Polytechnic University Funds for Excellent Young Scientists, China (Grant No. 2014YQQ005).

Emergent ferroelectricity in disordered tri-color multilayer structure comprised of ferromagnetic manganites

NASA Astrophysics Data System (ADS)

Niu, Li-Wei; Chen, Chang-Le; Dong, Xiang-Lei; Xing, Hui; Luo, Bing-Cheng; Jin, Ke-Xin

2016-10-01

Multiferroic materials, showing the coexistence and coupling of ferroelectric and magnetic orders, are of great technological and fundamental importance. However, the limitation of single phase multiferroics with robust magnetization and polarization hinders the magnetoelectric effect from being applied practically. Magnetic frustration, which can induce ferroelectricity, gives rise to multiferroic behavior. In this paper, we attempt to construct an artificial magnetically frustrated structure comprised of manganites to induce ferroelectricity. A disordered stacking of manganites is expected to result in frustration at interfaces. We report here that a tri-color multilayer structure comprised of non-ferroelectric La0.9Ca0.1MnO3(A)/Pr0.85Ca0.15MnO3(B)/Pr0.85Sr0.15MnO3(C) layers with the disordered arrangement of ABC-ACB-CAB-CBA-BAC-BCA is prepared to form magnetoelectric multiferroics. The multilayer film exhibits evidence of ferroelectricity at room temperature, thus presenting a candidate for multiferroics. Project supported by the National Natural Science Foundation of China (Grant Nos. 61471301, 61078057, 51172183, 51402240, and 51471134), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20126102110045), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2015JQ5125), and the Fundamental Research Funds for the Central Universities, China (Grant No. 3102015ZY078).

Use of Diffusion of Innovations Theory To Drive a Federal Agency's Program Evaluation.

ERIC Educational Resources Information Center

Hubbard, Susan M.; Hayashi, Susan W.

2003-01-01

Provides the conceptual framework for the Treatment Improvement Protocols (TIPs) evaluation project, using the diffusion of innovations theory as the theoretical foundation to understand and assess the development of TIPs. Summarizes principles of diffusion theory, and discusses how the model was used to structure the TIPs studies. (SLD)

Super-sensitive phase estimation with coherent boosted light using parity measurements

NASA Astrophysics Data System (ADS)

Xu, Lan; Tan, Qing-Shou

2018-01-01

Not Available Project supported by the National Natural Science Foundation of China (Grant No. 11665010), the Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, China (Grant No. QSQC1414), and the Scientific Research Fund of Hunan Provincial Education Department, China (Grant No. 17B055).

Developing a broader scientific foundation for river restoration: Columbia River food webs

Treesearch

Robert J. Naiman; J. Richard Alldredge; David A. Beauchamp; Peter A. Bisson; James Congleton; Charles J. Henny; Nancy Huntly; Roland Lamberson; Colin Levings; Erik N. Merrill; William G. Pearcy; Bruce E. Rieman; Gregory T. Ruggerone; Dennis Scarnecchia; Peter E. Smouse; Chris C. Wood

2012-01-01

Well-functioning food webs are fundamental for sustaining rivers as ecosystems and maintaining associated aquatic and terrestrial communities. The current emphasis on restoring habitat structure-without explicitly considering food webs-has been less successful than hoped in terms of enhancing the status of targeted species and often overlooks important constraints on...

CLEFT PALATE. FOUNDATIONS OF SPEECH PATHOLOGY SERIES.

ERIC Educational Resources Information Center

RUTHERFORD, DAVID; WESTLAKE, HAROLD

DESIGNED TO PROVIDE AN ESSENTIAL CORE OF INFORMATION, THIS BOOK TREATS NORMAL AND ABNORMAL DEVELOPMENT, STRUCTURE, AND FUNCTION OF THE LIPS AND PALATE AND THEIR RELATIONSHIPS TO CLEFT LIP AND CLEFT PALATE SPEECH. PROBLEMS OF PERSONAL AND SOCIAL ADJUSTMENT, HEARING, AND SPEECH IN CLEFT LIP OR CLEFT PALATE INDIVIDUALS ARE DISCUSSED. NASAL RESONANCE…

Laying the Foundations for Scientometric Research: A Data Science Approach

ERIC Educational Resources Information Center

Perron, Brian E.; Victor, Bryan G.; Hodge, David R.; Salas-Wright, Christopher P.; Vaughn, Michael G.; Taylor, Robert Joseph

2017-01-01

Objective: Scientometric studies of social work have stagnated due to problems with the organization and structure of the disciplinary literature. This study utilized data science to produce a set of research tools to overcome these methodological challenges. Method: We constructed a comprehensive list of social work journals for a 25-year time…

Findings from a Randomized Experiment of Playworks: Selected Results from Cohort 1

ERIC Educational Resources Information Center

Bleeker, Martha; James-Burdumy, Susanne; Beyler, Nicholas; Dodd, Allison Hedley; London, Rebecca A.; Westrich, Lisa; Stokes-Guinan, Katie; Castrechini, Sebastian

2012-01-01

Recess periods often lack the structure needed to support physical activity and positive social development (Robert Wood Johnson Foundation 2010). The Playworks program places full-time coaches in low-income schools to provide opportunities for organized play during recess and throughout the school day. Playworks activities are designed to engage…

Reducing seismic risk to highway mobility : assessment and design examples for pile foundations affected by lateral spreading.

DOT National Transportation Integrated Search

2013-04-01

Damage in pile supported structures due to liquefaction and liquefaction induced deformation were reported in past earthquakes around the world : (e.g., Ansal et al. 1999; Seed et al. 1990; EERI 2010, EERI 2011; GEER 2010a, GEER 2010b, GEER 2011). Fo...

12 CFR 22.2 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... building or mobile home that is located or to be located in a special flood hazard area in which flood... Management Agency. (g) Mobile home means a structure, transportable in one or more sections, that is built on a permanent chassis and designed for use with or without a permanent foundation when attached to the...

12 CFR 760.2 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... building or mobile home that is located or to be located in a special flood hazard area in which flood... Management Agency. (g) Mobile home means a structure, transportable in one or more sections, that is built on a permanent chassis and designed for use with or without a permanent foundation when attached to the...

12 CFR 614.4925 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... mobile home that is located or to be located in a special flood hazard area in which flood insurance is... Agency. (e) Mobile home means a structure, transportable in one or more sections, that is built on a permanent chassis and designed for use with or without a permanent foundation when attached to the required...

25. Photocopy of engineering drawing. NEW WHITE ROOM AND MULTISOLIDS ...

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

25. Photocopy of engineering drawing. NEW WHITE ROOM AND MULTISOLIDS MODS FOR STRETCHED TANK DELTA LAUNCH COMPLEX 17-A, PAD AREA: PLAN-RAIL BEAMS AND HURRICANE ANCHOR FOUNDATIONS, STRUCTURAL, APRIL 1972. - Cape Canaveral Air Station, Launch Complex 17, Facility 28416, East end of Lighthouse Road, Cape Canaveral, Brevard County, FL

Neurolinguistic Foundations to Methods of Teaching a Second Language.

ERIC Educational Resources Information Center

Walsh, Terrence M.; Diller, Karl C.

Applied linguistic theory is examined in light of neuroscientific knowledge, especially in regard to the structure and function of the cerebral cortex, in order to illuminate the process and methods of teaching or learning language. Wernicke's Area and Broca's Area are parts of the brain that have been associated with language function.…

Redox Abnormalities as a Vulnerability Phenotype for Autism and Related Alternations in CNS Development

DTIC Science & Technology

2009-10-01

2004. MECP2 structural and 3’-UTR variants in schizophrenia , autism and other psychiatric diseases: a possible association with autism. Am J Med...inhibition, thus potentially enabling enhancement of remyelination. Role: PI Award letter dated 12/11/06 Noble (PI) Cure Autism Now Foundation 02/05

An Inquiry Process for Individual and Institutional Ethics

ERIC Educational Resources Information Center

Farrell, Patricia L.

2009-01-01

The foundation for a successful college is framed by both institutional values exhibited in its mission, culture, structure, and organization and the way the college implements these values. Thus the college's institutional values must be real and respected. As Schein (1996) would say, these institutional values must be some of the things that…

Compensatory dynamics are rare in natural ecological communities.

Treesearch

J.E. Houlahan; D.J. Currie; K. Cottenie; G.S. Cumming; S.K.M. Ernest; C.S. Findlay; S.D. Fuhlendorf; R.D. Stevens; T.J. Willis; I.P. Woiwod; S.M. Wondzell

2007-01-01

Hubbell recently presented a theoretical framework, neutral models, for explaining large-scale patterns of community structure. This theory rests on the foundation of zero-sum ecological communities, that is, the assumption that the number of individuals in a community stays constant over time. If community abundances stay relatively constant, (i.e. approximating the...

The Foundations of Linguistics: Two Theses

ERIC Educational Resources Information Center

Barrios, Edison

2009-01-01

Linguists tell us that the sentence "I enjoyed yourself" is ungrammatical because it violates structural constraints on English sentences. Is this a fact about the "psychology" of English speakers, or a fact about some "mind-independent" state of affairs? If it is indeed a fact about the speaker's psychological makeup then is it so in virtue of…

Community Colleges for International Development, Inc.: The Vision and the History, 1976-1994.

ERIC Educational Resources Information Center

Humphrys, James G.; Koller, Albert M., Jr., Ed.

Focusing on organizational structure, operational policies, and scope of activities, this monograph relates the history of the Community Colleges for International Development, Inc. (CCID), a cooperative endeavor to promote international education in two-year colleges. The first chapter describes CCID's formative years, from its foundation in 1976…

Rise and Decline of Education Systems: A Contribution to the History of the Modern State

ERIC Educational Resources Information Center

Mitter, Wolfgang

2004-01-01

If by 'education systems' we understand institutional units, constituted by common legal provisions, organizational structures, curricular goals and value foundations, the current period signals their decline. This indicates the decline of the modern nation state, which has characterized the political map of Europe for 300 years and gradually…

Relationship-Centered Practices in Early Childhood: Working with Families, Infants, and Young Children at Risk

ERIC Educational Resources Information Center

Ensher, Gail L.; Clark, David A.

2011-01-01

Strong working relationships with diverse families and children are the foundation of successful early intervention. Discover fresh, practical ways to build these relationships in this essential guidebook, every professional's blueprint for working with children and families within the specific context of their culture, family structure, and risk…

Cutting Class

ERIC Educational Resources Information Center

Schechtman, Helaine

2011-01-01

During her thirty-five years of teaching, the author has found that starting an introductory course with lessons that almost always guarantee success creates a strong foundation on which the course can be structured. It builds confidence and repairs the damage that may have been done to students who are timid or afraid of failing in their creative…

The Community College: A Position for Curricular Change in a New Era

ERIC Educational Resources Information Center

Fechter, Sharon Ahern

2010-01-01

Two recent reports offer some paradigm-shifting proposals regarding the teaching of world languages in general at the undergraduate level. The Modern Language Association's (MLA's) "Foreign Languages and Higher Education: New Structures for a Changed World" and "Report to the Teagle Foundation on the Undergraduate Major in Language and Literature"…

The W22 genome: a foundation for maize functional genomics and transposon biology

USDA-ARS?s Scientific Manuscript database

The maize W22 inbred has served as a platform for maize genetics since the mid twentieth century. To streamline maize genome analyses, we have sequenced and de novo assembled a W22 reference genome using small-read sequencing technologies. We show that significant structural heterogeneity exists in ...

Assessing Agency of University Students: Validation of the AUS Scale

ERIC Educational Resources Information Center

Jääskelä, Päivikki; Poikkeus, Anna-Maija; Vasalampi, Kati; Valleala, Ulla Maija; Rasku-Puttonen, Helena

2017-01-01

Fostering agency as a core component of professionalism is seen as a critical task of higher education. However, the tools for assessing university students' agency, and the pedagogical and relational resources needed for its development, are lacking. The present study describes the theoretical foundations and factor structure of the newly…

Seeding Evolutionary Thinking by Engaging Children in Modeling Its Foundations

ERIC Educational Resources Information Center

Lehrer, Richard; Schauble, Leona

2012-01-01

Although the core work of science is oriented toward constructing, revising, applying, and defending models of the natural world, models appear only rarely in school science, and usually only as illustrations, rather than theory building tools. We describe the rationale and structure for a learning progression to understand the development of…

Reduction of stresses on buried rigid highway structures using the imperfect ditch method and expanded polysterene : geofoam.

DOT National Transportation Integrated Search

2009-01-01

This study provides strong evidences from both numerical model analysis and in-situ test data to indicate that geofoam is an ideal elasto-plastic material to reduce vertical load on top of rigid culvert resting on a rigid foundation. The load on the ...

Modeling the Shapes of Cells

ERIC Educational Resources Information Center

Garimella, Umadevi I.; Robertson, Belinda M.

2015-01-01

A solid understanding of the structure and function of cells can help establish the foundation for learning advanced concepts in the biological sciences. The concept of the cell is introduced in middle school life science courses and is continued at the undergraduate level in college (NRC 2012; Reece et al. 2014). Cells are introduced to students…

A Career Practitioner's Response to the National Career Development Strategy Green Paper

ERIC Educational Resources Information Center

Athanasou, James A.

2012-01-01

The National Career Development Strategy Green Paper is a discussion paper issued by the Department of Employment, Education and Workplace Relations. It is aimed at the formulation of a coherent and structured career development strategy throughout Australia. The Green Paper seeks to lay the foundation for policy change through establishing the…

25 CFR 900.70 - What elements are included in the compensation for a lease entered into between the Secretary and...

Code of Federal Regulations, 2010 CFR

2010-04-01

...) Fire safety system; (vii) Security system; and (viii) Roof, foundation, walls, floors. (12) Unscheduled...) Monitoring and preventive maintenance of building structures and systems, including but not limited to: (i..., repainting); (14) Security services; (15) Management fees; and (16) Other reasonable and necessary operation...

Geotechnical Study and Foundation Structural Design, Next Generation Ionosonde (NEXION) Installation, Thule Air Base, Greenland

DTIC Science & Technology

2015-10-01

Richard Biagioni , Program Manager Space and Missile Systems Center (SMC) Remote Sensing Space Environmental Branch (RSSE) 1050 E. Stewart Ave...Environmental Branch (SMC/RSSE) under MIPR# F3LGWD5009G003. The technical monitor was Richard Biagioni , SMC/RSSE. The work was performed by Kevin Bjella