... Influence of filler content and temporature on * ultimate tensile properties. ... Influence of filler content and temperature on ultimate tensile properties, ...

... INFLUENCE OF FILLER CONTENT AND TEMPERATURE ON ULTIMATE TENSILE PROPERTIES. Descriptive Note : Technical rept. ...

strength and ultimate strength .................. 14 .... at the stress level ( 30% of ultimate strength at room temperature) used as the allowable for ...

Commercial copper pyrophosphate electroplating solutions containing different concentrations of organic addition agents were studied to determine if copper electrodeposits with consistent mechanical properties could be obtained. Cyclic voltammetry was used to monitor and control the concentration of the addition agents, and thus to maintain the brightness of the deposits and ...

The effort to achieve a clear understanding of the processes whereby solar wind energy and plasma are imparted to the earth's magnetosphere, and ultimately ...

... Accession Number : ADD420768. Title : Ultimate Properties of Short-Fiber Reinforced Plastics,. Corporate Author : Personal Author(s) : Kardos,JL. ...

... The properties covered include bi- axial stress-strain curves, biaxial yield stress, biaxial ultimate stress, strain at biaxial ultimate stress, and strain at ...

... Matrix properties such as ultimate strength, ultimate elongation, toughness, and fracture toughness are misleading in trans-lating matrix properties ...

Liquid epoxy resin impregnation systems remain a state-of-the-art polymer material for vacuum and vacuum/pressure impregnation applications in the manufacture of both advanced and conventional coil winding configurations. Epoxy resins inherent latitude in...

Liquid epoxy resin impregnation systems remain a state-of-the-art polymer material for vacuum and vacuum/pressure impregnation applications in the manufacture of both advanced and conventional coil winding configurations. Epoxy resins inherent latitude in...

... Title : Biomechanics of Bones and Ligaments in Primates: The Effects of Strain Rate, Exercise, and Reconditioning on Ultimate Properties. ...

... the 0.2% yield stress and ultimate tensile stress (UTS ... improvement of the matrix yield and ultimate tensile stresses. ... in the value of the strain to failure ...

... SIFCON specimens. Slurry cubes were tested for ultimate strength only. ... ultimate strength to demonstrate a complete load/deflection curve. ...

... Mechanical properties determined were Tensile yield strength; tensile ultimate strength; compressive yield strength; shear ultimate strength ...

An artificial neural network (ANN) model has been developed to analyze and predict the correlation between tensile property and hydrogenation temperature and hydrogen content of hydrogenated Ti600 titanium alloy. The input parameters of the neural network model are hydrogenation temperature and hydrogen content. The output is ultimate tensile strength. The ...

An artificial neural network (ANN) model has been developed to analyze and predict the correlation between tensile property and hydrogenation temperature and hydrogen content of hydrogenated Ti600 titanium alloy. The input parameters of the neural network model are hydrogenation temperature and hydrogen content. The output is ultimate tensile strength. The ...

The ultimate outcome will be to establish a set of criteria for best fitting the appropriate technology to the Range communications needs while achieving ...

... Abstract : Whatever the ultimate purpose of an interception system is, it nearly always must achieve the three basic functions of detection, frequency ...

first generation propellants to the ultimate high energy combinations in that a compro- mise between performance and problem areas was achievable. ...

... to ultimately achieve policy goals. The Secretary of the Army, Louis Caldera, reported in his 1998 Report to the Secretary ...

... strategic importance of computer networks in terms of achieving, defending and ultimately sustaining competitive advantage, understanding how to ...

... This analysis determines ultimate loads for which the vehicle must be designed in order to achieve the specified acceptable failure rate due to ...

Mechanical properties of two different purity MoSi2 intermetallic matrices reinforced with 20 vol percent silicon carbide platelets were investigated. The mechanical properties are found to increase significantly (up to 98 percent higher flexure strength) through the addition of silicon carbide platelets. The ultimate ...

The paper presents computer programs for adjusting the mechanical properties of 2-in. dimension lumber for changes in moisture content. Mechanical properties adjusted are modulus of rupture, ultimate tensile stress parallel to the grain, ultimate compress...

ObjectiveThe objective of this study was to determine the capacity of chondrocyte-and mesenchymal stem cell (MSC)-laden hydrogel constructs to achieve native tissue tensile properties when cultured in a chemically defined medium supplemented with transforming growth factor-beta3 (TGF-?3).DesignCell-laden agarose hydrogel constructs (seeded with bovine ...

The desire for ever smarter systems-on-a-chip and plug-free portable electronics with longer operating times between recharge has stimulated growing interest in micro-ionic systems. The use of thin film and photolithographic processing techniques, commonly at temperatures considerably below those utilized in conventional ceramics processing methods, leads to ionic or mixed ionic-electronic ...

Electronic packaging and interconnections are the elements that today limit the ultimate performance of advanced electronic systems. Materials in use today and those becoming available are critically examined to ascertain what actions are needed for U.S. industry to compete favorably in the world market for advanced electronics. Materials and processes are discussed in terms ...

The Cryogenic Tensile Properties of an Extruded Aluminum-Beryllium Alloy .... AlBeMet162 design properties for ultimate tensile strength and yield strength ...

The physical properties of polyethylene, the material used in gas transmission pipes, are ultimately determined by the nature of the polymeric molecules in the resin used in pipe manufacture. This relation between molecular structure and properties is bas...

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The goal of the project was to develop methodologies in which to define and improve the properties of NbCr{sub 2} so that the high temperature structural applications of alloys based upon this would not be limited by the ...

Liquid epoxy resin impregnation systems remain a state-of-the-art polymer material for vacuum and vacuum/pressure impregnation applications in the manufacture of both advanced and conventional coil winding configurations. Epoxy resins inherent latitude in processing parameters accounts for their continued popularity in engineering applications, but also for the tendency to overlook or misinterpret ...

The effect of heat treatment on the tensile, fracture toughness, and stress corrosion properties of a high strength maraging steel (nominal composition 16.3 Ni?12.87 Co?4.98 Mo?0.78 Ti) is described. A maximum ultimate tensile strength of 323 ksi, combined with a fracture toughness K Ic of 62 ksisqrt {in} , was achieved. This ...

This study developed novel hydrides for hydrogen storage through a novel synthesis technique utilizing high hydrogen overpressure at elevated temperatures denoted as Molten State Processing, MSP. The ultimate goal is to produce materials that have high hydrogen capacity, are stable after cycling and possess favorable thermodynamic and kinetic characteristics compatible with ...

An attempt has been made to assess the generalized in-plane inelastic deformation and rupture properties of typical laminated or woven ceramic-matrix composites. The assessment is made by first identifying two principal classes of behavior. These classes are distinguished by the ratio of which elastic properties of the fibers to those of the matrix, which ...

... Abstract : Heat treatment at temperatures of 224 to 310C of hydrolytically degraded polyimide film has been shown to regenerate the ultimate ...

... Abstract : Specimens of snow from the South Pole were tested to investigate air permeability, ultimate compressive strength and dynamic Young's ...

... the elasticity and structural mechanics of the actual ... only a comparison of the solid properties. ... strains will ultimately lead to nonlinear behavior and ...

... Abstract : The present work is devoted to an experimental study of the effect of heating on the ultimate strength of tungsten alloy fibers. ...

... Kidney International, In Press ... Within dividing cells, the loss of telomere DNA ultimately results in cellular senescence and eventually, cell death. ...

Microscopic information about bubble packing and rearrangement dynamics, from which the macroscopic non-Newtonian properties ultimately arise, ...

... Accession Number : AD0769244. Title : Biomechanics of Bones and Ligaments in Primates: The Effect of Immobilization on Ultimate Properties. ...

... Title : AERODYNAMIC LOAD TEST OF THE ... of ultimate thrust and aerodynamic loads. ... PROPERTIES), AERODYNAMIC LOADING, PERFORMANCE ...

An aluminum-copper alloy of the A206 type was melt and cast in molds that promote a thermal gradient during solidification to study the effects that solidification rate exerts on the microstructure of the material. The stress-strain characteristics of heat-treated samples were related to microstructural parameters. The reactions occurring during solidification and cooling were detected and ...

The ultimate velocity achievable with railguns will probably be determined by how well one can manage to minimize barrel effects associated with the need for sliding electrical contact between the rails and the armature. However, in principle, electromagn...

The following work shows how one can achieve the safe closure of ultimate-stored radioactive wastes by connecting a series of various barriers to the biosphere. The propagation of radionuclides by groundwater is considered to be the most important long-te...

As a result of massive reductions in deployed nuclear warheads, and their subsequent dismantlement, large quantities of surplus weapons- grade plutonium will be stored until its ultimate disposition is achieved in both the US and Russia. Ultimate disposit...

The performance of metal microelectrodes for stimulating and recording neuronal action potentials depends on precise control of their geometrical, electrical and mechanical properties. We describe a combination of materials whose properties approach fundamental physical limitations on achievable performance and reproducible fabrication ...

Two ultrahigh carbon steel (UHCS) alloys containing 1.5 and 1.8 wt pct carbon, respectively, were studied. These materials were processed into fully spheroidized microstructures and were then given heat treatments to form pearlite. The mechanical properties of the heat-treated materials were evaluated by tension tests at room temperature. Use of the hypereutectoid ...

The prospect of clinical applications of bio-cements in bone implantation and tissue substitution implies strict requirements as regards material reliability and robustness. We suggest a technique to enhance the mechanical properties of bio-cements based on ?-Ca3(PO4)2. Various types of mechanical testing, including compressive deformation analysis, proved that the most robust ...

Materials for future generations of aeropropulsion systems will be required to perform at ever-increasing temperatures and have properties superior to the current state of the art. Improved engine efficiency can reduce specific fuel consumption and thus increase range and reduce operating costs. The ultimate payoff gain is expected to come when materials ...

The anterior cruciate ligament (ACL) is the most commonly injured intra-articular ligament of the knee. The insufficient vascularization of this tissue prevents it from healing completely after extreme tearing or rupture, creating a need for ACL grafts for reconstruction. The limitations of existing grafts have motivated the investigation of tissue-engineered ACL grafts. A successful ...

The anterior cruciate ligament (ACL) is the most commonly injured intra-articular ligament of the knee. The insufficient vascularization of this tissue prevents it from healing completely after extreme tearing or rupture, creating a need for ACL grafts for reconstruction. The limitations of existing grafts have motivated the investigation of tissue engineered ACL grafts. A successful tissue ...

Optical tissue phantoms are very important tools for the development of biomedical imaging applications. Optical phantoms are often used as ground truth against which instruments results can be compared. It is therefore important that the optical properties of reference phantoms be measured in a manner that is traceable to the international system of units. SI traceability ...

... Factors Leading to Reduced Properties for Polyurethanes Based on Non-Polar Soft Segments. Revision. Descriptive Note : Technical rept.,. ...

... work of Chou, Carleone, and Hsu (1972) and predicts the effective three-dimensional thermo-mechanical properties and ultimate strength of thick ...

The purpose of the manual is to express the mechanical and other properties of fibers in terms meaningful to structural, mechanical, and other engineers. Many materials reach their ultimate in tensile strength when in fiber form, and it is expected that a...

The physical properties of polyethylene, the material used in gas distribution pipes and fittings, are ultimately determined by the nature of the polymer molecules in the resin used for pipe manufacture. This relation between molecular structure and prope...

This report summarizes the state of the art of sulfur concrete. Sulfur concrete is created by mixing molten sulfur with aggregate and allowing the mixture to solidify. Ultimate strength is reached in a short time. It exhibits favorable fatigue properties ...

The purpose of this investigation is to help develop methods of characterizing the surface properties of implant materials for use in the cardiovascular system. These properties are related to the ultimate success or failure of an implant in vivo. The inv...

Room temperature mechanical properties were measured in 3-point flexure. The matrix microcracking stress and the ultimate strength increased with increase ...

Ultimate limits on the size and performance of superconducting magnets can be imposed by electromagnetic forces generated within the conductor. In the case of NbTi conductor, the superconducting properties begin to deteriorate as the working induction approaches B/sub c2/ before the stress levels become a significant fraction of the flow stress. This may ...

Patients with diabetic retinopathy (DR) may experience a reduction in retinal oxygen saturation (SO2). Close monitoring with a fundus ophthalmoscope can help in the prediction of the progression of disease. In this paper we present a noninvasive instrument based on structured illumination aimed at measuring the retina optical properties including oxygen saturation. The ...

Ractopamine hydrochloride (RAC) has consistently led to an advantage in carcass cutting yields of finishing pigs and remains a common feed additive in US finishing pig diets. Less is known about the effect of RAC on further processing characteristics. Some researchers have reported advantages in ultimate pH of the LM in pigs fed RAC. If a greater ultimate ...

transportation technologies that could achieve significant improvements in vehicle fuel efficiency and displace oil with other fuels that ultimately can be domestically...

The ultimate objective of this Convention and any related legal instruments that the Conference of the Parties may adopt is to achieve, in accordance with the relevant provisions of the Convention, stabilization of greenhouse gas concentrations in the atm...

Explains the complexity faced by the scientific researcher in an effort to achieve fusion power. Outlines the theory and current experiments being pursued in this complex project, including visits to five major fusion research laboratories, and interviews...

The ultimate importance of developing recycling markets is to accomplish these five objectives: Assist local governments and state offices in achieving the recycling goals in the SCORE (Select Committee on Recycling and the Environment) legislation throug...

... include: forging of PM parts; selection of maximum particle size of the powder; efficiency of ultrasonic testing; necessity of clean rooms and failure ...

The goal of DOE's Electric and Hybrid Vehicle Program is to promote and accelerate the development and public use of vehicles that use electricity as the principal source of propulsion energy. Successful achievement of this goal will ultimately result in ...

Strategy is the alignment of ways and means to achieve the desired ends. In Afghanistan, the desired end state for the United States is the disruption and ultimate defeat of Al Qaeda. Though successful in Iraq, a counterinsurgency strategy is unlikely to ...

... assimilate satellite-derived data should ultimately lead to improved numerical forecasts of TC intensity. Descriptors : *ARTIFICIAL SATELLITES, * ...

... designed to place the ultimate responsibility for ... subject: Acceleration of the Space-Based Infrared ... from a system of systems perspective, using cost ...

BackgroundDespite the morphological alterations of the deep fascia subjected to leg lengthening have been investigated in cellular and extracellular aspects, the impact of leg lengthening on viscoelastic properties of the deep fascia remains largely unknown. This study aimed to address the changes of viscoelastic properties of the deep fascia during leg ...

... and mechanical systems is ultimately limited by the properties of materials used. Properties of a ... properties for engineering materials, which include mechanical, fatigue, creep and other properties ...

The effect of load eccentricity and substructure deformation on the ultimate strength and stress displacement properties of the shuttle orbiter thermal protection system (TPS) was determined. The LI-900 Reusable Surface Insulation (RSI) tiles mounted on t...

The Transportation Operational Personal Property Standard System (TOPS) is an automated information management system to help administer the personal property transporation program for the Department of Defense (DOD). TOPS was fielded at four prototype sites in the late summer of 1988. Prototype testing is currently underway, with system deployment ...

In September 1991, a Michigan court ruled that the State of Michigan owed Miller Brothers $42 million. The award was given as compensation for a 1987 taking of their property in which drilling permits were illegally denied. Miller Brothers was able to present a convincing case by establishing a sound basis for the evaluation of the property in question. ...

Since molecular electronics has been rapidly growing as a promising alternative of conventional electronics towards the ultimate miniaturization of electronic devices through the bottom-up strategy, it has become a long-term desire to understand and control the transport properties at the level of single molecules. In this presentation we show that one may ...

Hard X-rays have exceptional properties that are useful in the chemical, elemental and structure analysis of matter. Although single-nanometre resolutions in various hard-X-ray analytical methods are theoretically possible with a focused hard-X-ray beam, fabrication of the focusing optics remains the main hurdle. Aberrations owing to imperfections in the optical system degrade ...

In contrast to other approaches, evolutionary perspectives on understanding the power and wealth inequalities in human societies view wealth and power not as ends in themselves but as proximate goals that contribute to the ultimate Darwinian goal of achieving reproductive success. The most successful means of achieving it in specific ...

High RRR bulk niobium SRF cavities are the building blocks of the latest and future particle accelerators, free electron lasers (FEL's) and energy recovery linacs (ERL's.). These cavities are fabricated from high purity (RRR) poly crystalline niobium sheets via deep drawing, e-beam welding and surface treatment to obtain high accelerating gradients and quality factors. However, ...

The objective of this program is to demonstrate the feasibility of utilizing pyrolytic oil and char as a fuel for a combustion turbine engine. This is the first phase of an extended program with the ultimate goal of commercializing a gas turbine engine and electrical generating system which is independent of petroleum-based fuels. Maximum use of existing technology and current ...

Ultrahigh-carbon steels (UHCSS) can achieve very high strengths in wire or rod form. These high strengths result from the mechanical work introduced during wire and rod processing. These strengths have been observed to increase with carbon content. In wire form, tensile strengths approaching 6000 MPa are predicted for UHCS containing 1. 8%C. In this paper, we will discuss the ...

The ultimate objective of any educational enterprise is to improve student achievement so that individuals may contribute to our democracy, economy, and communities and live their own American dreams. Improving student achievement is hard. It requires mea...

Although the ultimate aim of neuroscientific enquiry is to gain an understanding of the brain and how its workings relate to the mind, the majority of current efforts are largely focused on small questions using increasingly detailed data. However, it might be possible to successfully address the larger question of mind-brain mechanisms if the cumulative findings from these ...

Although the ultimate aim of neuroscientific enquiry is to gain an understanding of the brain and how its workings relate to the mind, the majority of current efforts are largely focused on small questions using increasingly detailed data. However, it might be possible to successfully address the larger question of mind�brain mechanisms if the cumulative findings from these ...

Despite the growing interest that quantum cascade lasers (QCLs) are gaining, they still present a few unclear aspects of their fundamental properties, such as spectral purity, that need to be deeply investigated when aiming to make these innovative laser sources suitable for high-resolution spectroscopy and metrology. This paper is a review of our efforts towards QCL-based ...

An improved method of making Be shapes of at least 99% theoretical density is described. Be powder is first pressed at room temperature and pressures of 30,000 to 90,000 psi, and then hot pressed at 1400 to 2150 deg F and pressures of 100 to 10,000 psi. The first pressing may be either an isostatic process or a mechanical compacting process, producing a shape with 60 to 95% theoretical ...

Optical tweezer experiments have partially unveiled the mechanical properties of processive motor proteins while driving polystyrene or silica microbeads in vitro. However, the set of forces underlying the more complex transport mechanisms in living samples remains poorly understood. Several studies have shown that optical tweezers are capable of trapping vesicles and ...

Third generation IR focal plane arrays will be required to operate at significantly higher temperatures than utilized today. The ultimate aim is operation at room temperature, for nay desired cutoff wavelength in the complete IR spectral bandwidth of 1 to 14 micrometers , with performance characteristics equivalent to those achieved today at 77K. Thermal ...

Lifetime measurements were carried out at the Weizmann Institute for low- lying levels of a number of odd-A nuclei in the nare-eanth region. The mean lives are in the range of 3 to 20 x 10/sup -11/ sec, and a special method was developed for the measurement of these short times. This consists of a microwave beam pulsing device which chops the charged pamicle beam producing the excited ...

The properties of millimeter-wave spectrometers as highly specific and sensitive experimental research tools for monitoring gaseous pollutants of interest in pollution research are presented. A spectrometer system operating at frequencies in the vicinity of 70 GHz and employing a semi-confocal Fabry--Perot resonator as the sample cell is described. The resonator is voltage ...

In this paper, adaptive neural network (NN) control is investigated for a class of block triangular multiinput-multioutput nonlinear discrete-time systems with each subsystem in pure-feedback form with unknown control directions. These systems are of couplings in every equation of each subsystem, and different subsystems may have different orders. To avoid the noncausal problem in the control ...

Our studies of amorphous calcium phosphate (ACP)-based materials over the last decade have yielded bioactive polymeric composites capable of protecting teeth from demineralization or even regenerating lost tooth mineral. The anti-cariogenic/re-mineralizing potential of these ACP composites originates from their propensity, when exposed to the oral environment, to release in a sustained manner ...

Objective: To describe the use of a cryogenic clamp of novel design for tensile strength testing of tendinous and ligamentous tissues with inherently high tensile strength. Methods: Inexpensive, easily machined steel clamps were manufactured to facilitate rapid insertion into a standard wedge-screw grip apparatus installed on a testing system with a control system attached. The deep digital flexor ...

The ultimate velocity achievable with railguns will probably be determined by how well one can manage to minimize barrel effects associated with the need for sliding electrical contact between the rails and the armature. However, in principle, electromagnetic launchers can use levitated projectiles which are propelled by induced currents. Then barrel ...

Differences in ecological sites, and sometimes ecological states, are ultimately due to differences in soil properties and processes within a climatic zone. Soil properties are features of a soil, such as soil texture or soil depth. Soil processes are a series of actions in the soil that bring abou...

The research described was concerned with the property - structure relations in semi-crystalline polymers with emphasis on mechanical, ultimate and relaxation properties. Key to the program was the ability to identify the key structural variables which go...

An experimental investigation into the mechanical properties of carbon fiber reinforced plastics (CFRP) is described and the results obtained evaluated. Mechanical properties, namely, ultimate compressive stress, Young modulus, Poisson ratio, and the stre...

The paper is a discussion of the available engineering properties data for the North Atlantic basin deposits. In addition to presenting the areal distribution of selected properties, it also includes a section dealing with ultimate bearing capacity of sur...

This paper presents computer programs for adjusting the mechanical properties of 2-in. dimension lumber for changes in moisture content. Mechanical properties adjusted are modulus of rupture, ultimate tensile ...

Mechanical and acoustic properties have been tabulated for 356 nonferrous, 173 ferrous, and 67 plastic materials. These properties include density, Young's modulus of elasticity, ultimate tensile strength, yield strength, strength-to-density ratio, elasti...

It is generally believed that many properties of solid interfaces are ultimately determined by their structure and composition at the atomic level. We report here on work in two areas of grain boundary (GB) research in which structure-property correlation...

It has been shown that the annealing of cold-worked 03Kh14GNF steel is accompanied by several strengthening and softening processes that take place in different temperature intervals. Therefore, the temperature dependence of its hardness has a complicated form; i.e., it contains several maxima and minima. The following processes should be noted: recovery and recrystallization of ? ferrite, ...

Hybrid composites with variable strength/toughness properties can be manufactured using combinations of brittle or ductile mesh in addition to brittle and ductile matrix reinforcements. The bending and tensile properties of thin sheet fiber cement composites made from these mixtures were investigated. Composites consisted of a woven mesh of either ...

A critical evaluation has been made of the available mechanical property data for Nb-, Mo-, Ta-, and W-base alloys. It was fouad that insufficient data are available to allow the design and construction of complex engineering systems involving these materials. A general evaluation of the potential service temperatures for Nb-, Mo-, Ta-, and W-base alloys was made on ...

In the thixo-die-casting process, the effect of solid fraction and the applied pressure on filling behavior and mechanical properties of the thixo-die-cast product were investigated. By controlling the behavior of solid particles in thixo materials, reduction in liquid segregation during thixo-die-casting was achieved by varying gating systems and solid ...

The present work is part of an investigation into the use of rapid solidification and powder metallurgy techniques to obtain iron-boron alloys with good mechanical properties. Two Fe-B binary alloys and two ultrahigh boron tool steels were gas atomized and consolidated by hot isostatic pressing (HIP) at temperatures ranging from 700 C to 1,100 C to have a fine microstructure. ...

Since yEc(tO) is the same as there exists a tlztO a UEIP such that ..... not exist such a UEIP, and a t 1 with the indicated property. This implies that ...

Solidification behavior controls the size and shape of grains, the rate and extent of segregation, the distribution of inclusions, the extent of defects such as porosity and hot-cracking, and, ultimately, the properties of weld metal. In the past, theorie...

and had been prepared by emulsion polymerization at. 50OC. The gum vulcanizate, which was cured for 60 min at 15OoC, contained the following parts by ...

The ultimate objective of this study is the determination of the static and dynamic properties of dislocations and dislocation arrays through the analysis of realistic discrete (atomistic) models of crystals. An intermediate objective, and the primary goa...

... Report Date : 1994. ... coalescence, niobium addition, sem, tensile strength, titanium addition, ultimate tensile strength, yttrium addition, zirconium ...

and high temperature strength properties. This is done in Figure 13, which shows plots of ultimate strength at 25, 871, and 1093 "C as a function of re- ...

... of tensile and bending fatigue specimens were also ... energy dispersive analysis, fatigue properties, fracture ... addition, ultimate tensile strength, x-ray ...

... The dependences of the mechanical properties on temperature show that at 20 C the ultimate strength in bending sigma(sub us) of the ceramic ...

Astrophysics, Planets and Life. What are the astrophysical properties of stars that might ... planets and ultimately to the genesis of life itself? ...

The ultimate goal is to generate experimental techniques and computer codes of rather general capability that would enable the aerospace industry to evaluate the scattering properties of aerodynamic shapes. Another goal involves developing an understandin...

Measurements were made to determine the viscosity of slurries of fine coal in water for a range of concentrations, temperatures, and particle sizes, with the ultimate objective of predicting pipeline energy requirements. The experimental work was carried ...

... The index properties (including bulk density, void ratio, porosity, water content, percent solids, Atterberg limits, and specific gravity) are ultimately ...

An interdisciplinary approach was taken to investigate structure property relationships in fibrous composites subjected to various stress states and environmental conditions. The ultimate goal was to reinforce our ability to optimize the fracture resistan...

The basic mechanisms governing the migration of water and hydrocarbons in sedimentary basins are related ultimately to basinal structural history, rock properties, compaction, and temperature regime, which themselves are interdependent.

Jun 16, 2011 ... The average modulus of elasticity and ultimate tensile stress of all loblolly pine fibers were, in equal proportion of earlywood and latewood, ...

... the ultimate tensile strength of a unidirectional composite dep ,dr ... can be attributed to fiber degradation during high temperature HIP ...

... HEAT RESISTANT AND ABRASION RESISTANT PROPERTIES OF 4340 STEEL AT 280,000 TO 300,000 PSI ULTIMATE STRENGTH. ...

... the properties, depending on the ultimate application. Wood- polymer composites (WPCs) can be any combination of wood and polymer, from polymer filled with wood fiber to solid ... ...

... property became a sanctuary of ecological beauty and inspiration. For 14 years, he lived to enjoy the ... essays that celebrate the role of beauty and inspiration in conservation. Ultimately, Leopold's ma...

... inhomogeneities, lamellar structure, martensite, polarized light microscopy, solid solution, tem, ultimate tensile strength, widmanstatten, yield stress ...

Ultimately, the nanotechnology industry will demand large quantities of CNT?s having a broad rage of physical and chemical properties?similar to the ...

ing all mechanical property test data on nickel-manganese alloys produced ... the nickel-manganese alloys exhibited ultimate and yield strengths eauivalent ...

Microscopic information about bubble packing and rearrangement dynamics, from which the macroscopic non-Newtonian properties ultimately arise, ...

The paper deals with some of the properties of nuclear explosions which influence the predictions and scalings for fireball phenomena, notably fireball sizes, temperatures, densities, and ultimately the thermal radiation output. Attention is focused on th...

Sep 16, 2010 ... Our ultimate aim is to provide High-K BNNTs or its Graphene analog in ... and high temperature stability to the performance properties ...

... Abstract : A program was conducted to obtain complete stress versus number of cycles (SN) curves for D6AC steel heat treated to an ultimate ...

The present understanding of the ultimate constituents of matter is summarized. The particles and their properties are given. Classification and interactions of the particles are discussed, together with the associnted conservation laws and nucleonic structure. (D.C.W.)

candidate material properties (stress/strain allowables and stiffnesses). .... compressive stress allowable; Fcu2 = 90� ultimate compressive stress allowable; ...

It was not possible to distinguish a difference in the room and cryogenic ultimate strength for the hot isostatically pressed (HIP'ed) 0-30H material. ...

... performance properties tested (such as flammability, smoke suppression, low temperature brittleness, yellowness, tear strength, hardness, ultimate ...

This research concerns the investigation of the physical properties of the components of a new solid state microbattery. This battery consists of a lithium metal anode, a lithium borate glass separator, and a cathode of the layer compound indium selenide which readily intercalates lithium ions and which is also an electronic conductor. The battery operates by the passage of ...

Inertial fusion must demonstrate that the high target gains required for practical fusion energy can be achieved with driver energies not larger than a few megajoules. Before a multi-megajoule scale driver is constructed, inertial fusion must provide convincing experimental evidence that the required high target gains are feasible. This will be the principal objective of the ...

In this article, the authors aim to present and discuss competing accountability approaches, or models, designed to systematically indicate how a school's students are performing academically. Within the framework of the current federally mandated accountability legislation, increased interest in models measuring school performance has caused educational policymakers to consider several key ...

Candidate materials for HTGR core supports and permanent side reflectors--graphite grades 2020 (Stackpole Carbon Company), H-440N (Great Lakes Carbon Corporation), PGX (Union Carbide Corporation), and HLM (Great Lakes Carbon Corporation)--are described and property data are presented. Properties measured are bulk density; tensile ...

Hemostasis in the traumatized liver has been achieved by thermally denaturing topically applied albumin. In this article, the mechanical properties of liver and denatured albumin (solder) were measured, and the failure methods of liver repaired with albumin were identified. The ultimate tensile strength and Young's modulus were ...

Three martensite contents (approximately 35, 50, and 100%) were obtained in a SAE8822 steel by altering the quenching media and section size. Another variation in martensite content (approximately 80 versus 97%) was achieved by quenching a SAE8622 steel in the same section size. The impact toughness and fatigue properties were determined after tempering to ...

Hot-pressed beryllium was examined after irradiation with more than 10/ sup 21/ fast neutrons/cm/sup 2/ while at a temperature which varied between 280 and 480 deg C. The smaller helium content (3.7 cm/sup 3/ at NTP/cm/sup 3/ Be), produced much smaller volume increases. The volume did not measurably increase during irradiation but did so only after heating for one hour at above 800 deg C. ...

The advent of self-inflating hydrogel tissue expanders heralded a significant advance in the reconstructive techniques available for the surgical restoration of a wide variety of soft tissue defects. However, their use in specific applications such as cleft palate surgery is limited on account of their isotropic expansion. An anisotropic self-inflating hydrogel tissue expander has been developed ...

The composition of petroleum has been the subject of many studies even since it was first discovered that petroleum could be fractionated by passage through a column of adsorbent. Throughout all of these studies, the objective has been to determine the petroleum composition in terms of broad generic fractions and to apply this knowledge to petroleum processability. In a prior publication, a ...

The ultimate nanoscale conductor is achieved perhaps when a single long molecule is used as conducting element. A prominent example of this idea is the prototype biological molecule of DNA, which has been proposed as a natural conductor with many ideal properties: It is naturally occurring as well as easily synthesized, it is prone to ...

Semiconductor surfaces provide a fascinating template for chemical reactions. The nature of the (100)-2x1 reconstructed surface of silicon and germanium yields dimers that can mimic the reactivity of organic functional groups. This behavior allows for the use of a wide range of reactions in attaching organic groups to the semiconductor surface. Using carbon-based chemistry as a guide, we have ...

Investigations of composite based on a spray deposition Al-Zn-Mg-Cu alloy reinforced with SiC particles with the volume fraction of 15% and various extrusion ratios of 11-39 are presented. Bars with a diameter of 8-15 mm were obtained as the end product. Based on the microstructural examinations of the composite, we can find that SiC particles adhered mainly to the surface of the alloy droplets ...

Developing iron-based coatings, from glass forming alloys such as SAM2X5, which exhibit outstanding corrosion performance superior to nickel-based alloys, results in particular challenges. This is because the resulting corrosion performance of the coating depends on a complex inter-relationship between the intrinsic properties including coating chemistry with its resulting ...

A dimensionless thermoelectric figure of merit (ZT) of about 1.2 was reported in Yb0.35Co4Sb12 at 550^oC by ball milling and hot pressing. Through alloying on both the Co and Sb sites, we expect to achieve lower thermal conductivity while maintaining the power factor. The composition tuning is aimed for reducing the electrical conductivity and increasing the Seebeck ...

The fast development of nitrides has given the opportunity to investigate AlGaN as a material for ultraviolet solar blind detection in competition with technologies based on photocathodes, MCP intensifiers, back thinned CCD or hybrid CMOS focal plane arrays. All of the them must be associated to UV blocking filters. These new detectors present both an intrinsic spectral selectivity and an ...

This study investigated the effect of three filler metals, namely ER5356, ER5183, and ER5556, and various postwelding heat treatments, including natural aging, artificial aging, T6 and T73, on mechanical properties of AA7005 and AA7003 alloys. Microhardness in the fusion zone, heat-affected zone, and base metal were measured. Both scanning electron microscopy and transmission ...

Increasing pressures to further reduce emissions and simultaneously increase fuel economy in automobiles has created a need for lightweight materials (such as Al, Mg, and their alloys). In order to optimize alloy design and processing conditions to achieve Al-alloy castings with the necessary mechanical properties, researchers at Ford Research Laboratory ...

The object of this study was to investigate the influence of static and dynamic forces on mechanical properties of the biocompatible polymer ethyl cellulose. Similar polymeric films containing 40% (w/w) of the plasticizer dibutyl sebacate were subjected to tensile forces at different velocities. The average Young's modulus and the variation of yield strength, strain, and ...

The mechanical properties of vertebral bone have been widely studied with the ultimate goal of improving fracture risk prediction. However, the mechanical interaction between the cortical shell and the trabecular core is not well understood. The objective of this study was to investigate this interaction and to determine what effect it has on the ...

... These assessment theories will assist the engineers to achieve a ... STRUCTURAL PROPERTIES, DYNAMICS, MATHEMATICAL MODELS, THEORY. ...

... THIS WAS ACHIEVED IN SMALL RECTANGULAR SHAPED SPECIMENS BY ADDING A TONGUE TO ONE SIDE EXTENDING THE INTENDED ...

... A rise in the corrosion-resistant properties of niobium at elevated temperatures is achievable by thermodiffusion coating with various elements. ...

The purpose of the report is to make available to the design engineer tensile property data on 5052-H34 aluminum under conditions of rapid heating and loading. The tensile property data reported are: ultimate tensile stress, ultimate yield stress (at 0.2 ...

The physical properties of polyethylenes, the materials used in gas transmission pipes and fittings, are ultimately determined by the nature of the polymer molecules in the resin used in pipe and fitting manufacture. The research investigates the toughnes...

The physical properties of polyethylenes, the materials used in gas transmission pipes and fittings, are ultimately determined by the nature of the polymer molecules in the resin used in pipe and fitting manufacture. The research investigates the toughnes...

Research devoted to upgrading the physical properties of polymeric materials through emphasis on the physics of macromolecular solids is described. Aspects of materials utilization are considered and recommended approaches to precise control of ultimate macromolecular chain extension, grain orientation, and phase structure are discussed. (JRD)

The ultimate objective of this work is to provide a spatially distributed database of soil properties to serve as inputs to model ecological processes in western forests at the landscape scale. The Central Western Oregon Cascades are rich in biodiversity and they are a fascinati...

Results of a laboratory study on strength properties of undisturbed and remolded soils is reported. The purpose of the study was to demonstrate that an accurate failure envelope could be developed by testing a single specimen. Thirty-one undisturbed sampl...

The purpose of the report is to make available to the design engineer tensile property data on 7075-T6 aluminum, in the longitudinal and transverse directions, under conditions of rapid heating and loading. The tensile property data reported are: ultimate...

Dehydrogenation factors, proximate analysis, and ultimate analysis were examined as predictors of the low-temperature carbonization properties of coals varying in rank from lignite through anthracite. All factors studied contributed to reduction in varian...

This project aims to understand the hydraulic and mechanical properties of individual fractures in crustal rock, for the ultimate purpose of providing a basis for understanding the behavior of rock masses, which are systems of joints and fractures. We see...

For a number of years, efforts have been made to accumulate data on soil - particularly, electromagnetic and thermal properties. The ultimate purpose being a better understanding of the interaction of land mine detectors and the soil. Conventional field a...

The propagation of an electromagnetic wave through a material is dependent on the electrical and magnetic properties of the material. Through electromagnetic or other geophysical techniques, the ultimate goal of a geophysicist is the identification of sub...

Through a direct study of the chemical and magnetic interfacial disorder in conjunction with magnetic property measurements, evidence is presented that the grain size is the ultimate factor in determining the magnetic coercivity in CoFe thin film structures. (c) 2000 American Institute of Physics.

paths of professional growth. Indeed, given the diversity of our discipline, the Psychology Department ACHIEVEMENT AND GROWTH The Psychology Department affirms the importance of professional achievement and growth ultimately impacts our teaching in positive ways. In psychology, professional achievement and growth ...

As commercialization of extreme ultraviolet lithography (EUVL) progresses, direct industry activities are being focused on near term concerns. The question of long term extendibility of EUVL, however, remains crucial given the magnitude of the investments yet required to make EUVL a reality. Extendibility questions are best addressed using advanced research tools such as the SEMATECH Berkeley ...

Well known is the application of the Rule of Mixtures in the estimate of composite properties such as the modulus of elasticity, thermal conductivity along the fiber orientations, and electrical conductivity in a linear system. However, this same rule does not govern the cited properties in the transverse direction, including the unidirectional ...

Reservoir simulation studies were conducted on selected reservoirs to establish the relationship between ultimate recovery and reservoir withdrawal rate. The rates ranged from far above to far below normal production practice. The simulation results indicate that for each reservoir and each development plan, an MER curve, a curve of ultimate recovery vs. ...

In the past several years, optical metamaterials (MMs) have attracted a considerable deal of interest because it may be anticipated that their properties can be shaped to an unprecedented extent relieving optics from some of its natural limitations. An inevitable first step toward this goal is the evaluation of the optical properties of specifically ...

Recent advances in nonlinear coherent optical imaging, particularly stimulated Raman scattering microscopy, have allowed highly sensitive label-free imaging of living cells and organisms based on molecular spectroscopy. Using the ultimate sensitivity of nonlinear optical microscopy, the detection of a single-molecule absorption signal at room temperature has been ...

... by a self-sustaining population within a defined footprint. Ecological services comprise benthic-pelagic coupling and the physical ... the ultimate goal of species introduction to restore ecological servi...

Key to achieving interoperability and compatibility, caCORE tools and APIs are developed by the National Cancer Institute Center for Bioinformatics and Information Technology (NCI CBIIT) to provide the building blocks for development of interoperable information management systems. This ultimately enables interoperability and data sharing from the ...

America's dependency on fossil fuels is a critical National Security issue. The United States needs to develop alternative means to power and fuel aircraft, ships and ground vehicles with the ultimate goal of achieving energy independence from foreign oil...

From the birth of radar there has been a steady trend to increase the radiated bandwidth to obtain high resolution, extreme accuracy, target identification, and fine imagery. The ultimate radiated waveform to achieve these goals is an impulse. The present...

reliability of NASA items and to achieve their damage-free delivery to the place and time of ultimate ..... Measures shall include appropriate cleaning and drying methods, preservatives, and wrapping for protection from chemical danger. ...

Professional decisions by production and reservoir geologists must consider many interrelated variables and ultimately must be resolved in terms of achieving maximum profit. Linear programing techniques provide a powerful and proven modeling tool uniquely adapted to aid in reaching decisions under these circumstances.

States� responsibilities under the Clean Water Act include identifying impaired waters (those not achieving Water Quality Standards) and ultimately restoring them. The high numbers of impaired waters in most states calls for yearly priority-setting decisions on restoration fundin...

of sports to choose from, including basketball, soccer and ultimate frisbee. Achieve your fitness goals, beach and bushwalking sites are world class and easy to get to. And if you yearn to travel overseas Harbour and features beautiful beaches, a wave pool, great nightlife and the famous Mindil Beach markets

A possible evolution of Columbus, bearing in mind the changes in the situation that have occurred over the last decade, is described. The ultimate goals that the program can realistically achieve in the international exploitation of space are focused upon...

This book discusses problems of current excitement and to report on recent progress. Focus is on superstring theories. How superstring theories are making dramatic strides towards achieving the ultimate goal of a unified quantum theory of all interactions including gravity is addressed. The mathematical discipline of topology is presented.

Space is the ultimate high ground. It is substantially different from air, land and sea because operations in space are truly global by nature. Space is fundamental to achieving global presence, global reach, and global force. The challenge in this new ag...

This report assumes that the Black colleges and Black higher education are a part of a dynamic system, including several essential supportive structures which will ultimately result in upgrading the level of the economic, social and political life of Blac...

Division Ultimate goal: Achieve currents obtainable with Ag/ZnO using new back reflector structure that is applicable for long lifetime modules ZnO Al ZnO Al Low n Low n...

To conduct effective operations that link tactical victories with achieving strategic goals, a Joint Task Force (JTF) commander should maintain ethical considerations at the forefront of all leadership, planning, and execution efforts to ensure ultimate s...

It is self-evident to most thoracic surgeons what it takes to be successful as a surgeon. It is equally important to recognize the importance of taking on leadership and administrative responsibilities to shape your career, your department, and your institution to achieve the ultimate in clinical and academic productivity and patient care. PMID:21762861

Biogeochemical characteristics render barium a useful tracer of riverine inputs on 10-100 kms spatial scales. Ultimately we seek to determine of barium in seawaters by an in-situ technique. An intermediate step toward achieving that goal is the developmen...

Aluminum halide catalyzed bromination of carborane and neocarborane resulted in a stepwise substitution with tri bromocarborane and dibromoneocarborane respectively, as the ultimate products. Further halogenation was achieved with chlorine to give B10H2Br...

Two important objectives of the BCSC are to enhance the current understanding of breast cancer screening practices and to help improve the practice of community-based mammography screening. Both objectives are aimed at achieving the ultimate goal of reducing breast cancer mortality.

research ultimately to understand the feasibility of advanced systems .... Vehicle. Estimated Fuel Savings*. Achieving Significantly Reduced Fuel Burn Will Require ... Alternative fuels. - Ultra-high bypass turbofans ...

into a variety of methods for its reduction, will allow the department to start working towards carbon neutrality Footprint and Carbon Neutrality "Carbon footprint" is a term used to describe the levels of greenhouse gases.2729 tons of CO2). The ultimate goal when reducing a carbon footprint is to achieve carbon neutrality

...DOE must work in cooperation with industry in the development of new energy sources and in achieving the ultimate goal of widespread commercial use of...accomplish DOE programs for bringing private industry into these and other special...

...fan blade failure will not jeopardize safety; or (3) Each fan blade can withstand an ultimate load of 1.5 times the centrifugal force expected in service, limited by either� (i) The highest rotational speeds achievable under uncontrolled...