Hydrodynamic calculations of stellar collapse in Type II Supernova are described using a variable stiffness and compressibility for the nuclear equation of state at high density. Initial models employing a relatively small mass core with low central entropy are necessary to achieve viable shocks; near success the ...
DOE Information Bridge
An optically corrected, micro-channel cooled, high density laser diode array achieves stacking pitches to 33 bars/cm by mounting laser diodes into V-shaped grooves. This design will deliver > 4kW/cm{sup 2} of directional pulsed laser power. This optically corrected, micro-channel cooled, high ...
DOEpatents
An optically corrected, micro-channel cooled, high density laser diode array achieves stacking pitches to 33 bars/cm by mounting laser diodes into V-shaped grooves. This design will deliver>4kW/cm2 of directional pulsed laser power. This optically corrected, micro-channel cooled, high ...
Electronic devices, components, circuits and microsystems continue to become smaller, lighter, faster and less expensive. The progress in hybrid microelectronics, especially in high density packaging and interconnections, is very much dependent on the achievements in developing new electronic materials. The paper presents the ...
NASA Astrophysics Data System (ADS)
... Title : Solid State Coextrusion of High Density Polyethylene. II. Effect of Molecular Weight and Molecular Weight Distribution. ...
DTIC Science & Technology
... Abstract : The production of high density aviation fuels from reliable, domestic fossil fuel sources is of considerable importance to the United States ...
Work with a state-of-the-art high density PCM tape recorder reproducer system is described. The tape
NASA Technical Reports Server (NTRS)
... Descriptors : *PHOTOLUMINESCENCE, *HETEROJUNCTIONS, *PUMPING( ELECTRONICS), *QUANTUM ELECTRONICS, LOW TEMPERATURE ...
... in the evaluation and development of a high density equation of state ... although changes of approximately 2% were obtained at the highest densities. ...
... the first of these, high densities (> 10(exp ... The data suggest that a population inversion on ... was achieved, but the inversion density was insufficient ...
... onto the metamaterial's surface. This serves as the evidence of the earlier predicted high density of photonic states in hyperbolic metamaterials. ...
The interiors of neutron stars contain matter at very high densities, in a state that differs greatly from those found in the early Universe or achieved in terrestrial experiments. Matter in these conditions can only be probed through astrophysical observations that measure the mass and radius of neutron stars with ...
PubMed
" high-density structural state, named very high- density amorphous (VHDA) ice, questioning the LDL-HDL the hypothesis that below a critical temperature there are two distinct phases of liquid water, LDL and HDL [18 that high-density amorphous (HDA) ice is a structurally arrested form of high-density liquid (HDL) ...
E-print Network
Laser programmed inter-level metal connections have been developed as a means to achieve high density linking for customization in programmable gate arrays and for additive redundancy in restructurable integrated circuits. This work reports on the linking...
National Technical Information Service (NTIS)
The production of high density aviation fuels from reliable, domestic fossil fuel sources is of considerable importance to the United States Air Force. The production of high density aviation fuels can be achieved by a number of alternative process sequences, for example, ...
Energy Citations Database
The ultra-high density hybrid flip chip integration of an array of detectors and its dedicated readout electronics can be achieved with a variety of solder bump techniques such as pure Indium of Tin alloys, (In, Ni/PbSn), but also conducting polymers, etc. Particularly for cooled applications or ultra-high ...
... Phenological Control Point Demonstration Using Four ... and subtropical regions of the world. ... STATES, NAVIGATION, HIGH DENSITY, ECOSYSTEMS ...
... The state of the plasma can be described by ... Terms in the equations take explicit account of ... bremsstrahlung cooling and other fluid dynamic effects. ...
Properties of high density matter in intense magnetic fields, presenting equations of state of Fermi
To meet the demand for increasingly high-performance electronic equipment, three-dimensional high-density packages have been achieved by combining several high-density planar printed-circuit boards into multilayer modules. The packages use thick-film resi...
The introductory section describes the goals, main thrusts, and interrelationships between the various activities in the program and principal achievements of the Stony Brook Nuclear Theory Group during 1992--93. Details and specific accomplishments are related in abstract form. Current research is taking place in the following areas: strong interaction physics (the physics of ...
A new operating mode of the plasma wakefield accelerator is found at which high efficiency of the driver-to-witness energy exchange can be achieved simultaneously with high transformer ratio and low energy spread. The efficient acceleration is realized in the blowout regime with a high-current moderate-length driver, if most of the driver and the whole witness are inside the ...
Materials can be experimentally characterized to terapascal pressures by sending a laser-induced shock wave through a sample that is precompressed inside a diamond-anvil cell. This combination of static and dynamic compression methods has been experimentally demonstrated and ultimately provides access to the 10- to 100-TPa (0.1�1 Gbar) pressure range that is relevant to planetary science, ...
PubMed Central
The collision of large nuclei at relativisitic energies is the only known mechanism for creating and studying the properties (equation-of-state, EOS) of extremely dense nuclear matter. At sufficiently high matter densities, one of the most exciting possibilities is the formation of a Quark Gluon Plasma (QGP). However, it is an extremely difficult task to determine the ultimate ...
The behavior of the scalar sigma meson at high density is discussed in the context of the Nambu--Jona-Lasinio model. The decrease of the sigma-meson mass with increasing density suggests a softening of the equation of state at high density in most of the relativistic mean-field calculations.
The structure and properties of neutron stars are determined by the state of cold nuclear matter at high density. In order to investigate the behavior of matter inside neutron stars, observables sensitive to their internal structure have to be calculated ...
... Low excess noise at high gains is achieved by exploiting the natural resonance for hole avalanche multiplication in the gain region while high ...
... Ring modulators = high density/bandwidth ... technical advantages for silicon photonics to achieve ... Longwave (1300-1600nm), single-mode fiber will ...
The objective of the compaction process is to produce a dense green-state compact from a nanosize powder that subsequently can be sintered at high temperatures to form a dense ceramic piece. High density in the green-state after pressing is of primary importance for achieving ...
High density regimes (with peak values around 10^21 m-3) in magnetically confined plasmas have been observed and investigated within the Alcator program at first, and later within the Frascati Torus program. In particular, record low values of the ion thermal conductivity and high degrees of purity(Zeff�1) were achieved when peaked ...
We propose a read-channel system with quasi-synchronous sampling and an adaptive partial-response maximum-likelihood (PRML) method to achieve accurate timing recovery and correct data extraction under high-density recording with a high transfer rate. The proposed system can extract data correctly in the state of either oversampling or ...
... MICROWAVES, LASERS, HIGH DENSITY, INSTABILITY, ELECTRIC ARCS, PLASMA JETS, MAGNETOSPHERE, CYCLOTRONS, STEADY STATE ...
The quasi-steady-state (tH > 10 ?Eoh) H mode with high plasma density (ELMy and ELM free) was routinely obtained by the injection of lower hybrid wave heating and lower hybrid current drive with a power threshold of 50 kW. The antenna spectrum was scanned over a wide range and ?E was about 1.5-2.0 times that of the L mode scaling. The density increases by almost a factor of ...
Planning Solar Neighborhoods is a comprehensive manual for planning energy conserving residential developments in California. Due to the state's great climatic diversity, six climate regions are defined and key building, planning, and landscape planting guidelines are presented for each. A well illustrated chapter on solar building concepts includes a series of ...
Collective impact ionization has been used to explain lock-on in semi-insulating GaAs under high-voltage bias. The authors have used this theory to study some of the steady state properties of lock-on current filaments. In steady state, the heat gained from the field is exactly compensated by the cooling due to phonon scattering. In the simplest ...
Copper aluminum oxide (CuAlO2) with delafossite structure is a promising candidate for high temperature thermoelectric applications because of its modest band gap, high stability and low cost. We investigate magnesium doping on the aluminum site as a means of producing higher electrical conductivity and optimized Seebeck coefficient. Powder samples were synthesized using ...
Under megabar pressures solids can be strongly compressed: volume of solid hydrogen decreases in �20 times, even diamond is 1.5 fold compressed at achievable pressures of >300 GPa. This dramatically changes interatomic distances in materials eventually leading to metallization in a number of presenting substances. Metals under compression supposedly remain in metallic ...
A method is given for preparing massive protective walls of high density, which comprises the steps of filling up the space between plankings with a material of high radiation protection properties and impregnating it afterwards with a fluid binding and packing agent. In order to achieve a high ...
and wild stock enhancement programs. Federal and state fish culturists raise fish in high density environments where the potential for a disease outbreak is peaked. Ignored, a...
Science.gov Websites
At extremely high densities, a series expansion in s is used to obtain an analytic expression for the electron pressure up to terms of order s3. For these high ...
NASA Website
... Abstract : High density polyethylene filaments, prepared by a solid-state deformation in an Instron Capillary Rheometer, show unusually high crystal ...
The Color Glass Condensate is a state of high density gluonic matter which controls the high energy limit of hadronic interactions. Its properties are important for the initial conditions for matter produced at RHIC.
... well exceeds broadening of the modes, these interacting ... very high densities of the photonic field which ... The low density of polariton states makes ...
... Your letter states that the middle layer or outside layer of these containers would be made from post-consumer recycled high density polyethylene (HDPE ...
Center for Food Safety and Applied Nutrition (CFSAN)
... HYDRAZINES, MOLECULES, PROFILES, FLOW RATE, CHEMICAL REACTIONS, HIGH DENSITY, ENERGY STORAGE, METASTABLE STATE ...
... the state-of-the-art in visual systems by providing the ... which requires a high density of visual cues to ... The GE system was tested with the computer ...
... central trench is shallow. ... High-density wafer-scale etching of a 500-jim square ... trenches were etched in a 300-Am square array. ...
Conventional liquid phase sintering has been the mainstay for processing tungsten alloy composites for the past several decades. New application demands being placed on these high density composites have resulted in the emergence of new processing approaches aimed at developing a new generation of high density ...
Beginning with a brief outline of properties of the vacuum and symmetry considerations, the possibility of the existence of abnormal states of high density nuclear matter is examined. A simplified discussion is then given of production and detection of the abnormal state using u + u as an example. It is concluded ...
A radical distribution function for hard spheres is obtained, which improves at high densities the Percus-Yevick one. This is achieved by solving the mean spherical integral equation for a Yukawa from, adjusted to satisfy the Carnahan-Starling equation of...
Some recent Livermore efforts towards achieving high-density implosions are presented. The implosion dynamics necessary to compress DT fuel to 10 to 100 times liquid density are discussed. Methods of diagnosing the maximum DT density for a specific design are presented along with results to date. The dynamics of the double-shelled target with an exploding ...
The micromagnetic Hall effect random access memory (MHRAM) has the potential of replacing ROMs, EPROMs, EEPROMs, and SRAMs because of its ability to achieve non-volatility, radiation hardness, high density, and fast access times, simultaneously. Informati...
Laser fusion targets are being designed to achieve 100 times liquid hydrogen density using the LLL Argus laser. One method proposed for diagnosing the high density is to seed the D,T fuel with Ar gas and measure the spatial extent of the region emitting t...
