A5022833757- Silicon and Solar Cell Technologies
- Electron and X-Ray Spectroscopy Techniques
- Advanced Surface Polishing Techniques
- Solid State Laser Technologies
- Advanced Electron Microscopy Techniques and Applications
- Laser Material Processing Techniques
- Photovoltaic Systems and Sustainability
- X-ray Spectroscopy and Fluorescence Analysis
- Chalcogenide Semiconductor Thin Films
- Advancements in Photolithography Techniques
- Calibration and Measurement Techniques
- Marine and coastal plant biology
- Photocathodes and Microchannel Plates
- International Maritime Law Issues
- Laser-Matter Interactions and Applications
- Particle Detector Development and Performance
- Optical Coatings and Gratings
- Legal and Constitutional Studies
- CCD and CMOS Imaging Sensors
- History of Science and Natural History
- Advanced MRI Techniques and Applications
- Cardiovascular Function and Risk Factors
- Silicon Effects in Agriculture
- Surface Roughness and Optical Measurements
- Laser-Plasma Interactions and Diagnostics
GT Advanced Technologies (United States)
2015
University of Miami
2004
Crystal Research (United States)
2003
University of California, Los Angeles
1995
University Hospitals of Cleveland
1989
Developments in direct electron detector technology have played a pivotal role enabling high-resolution structural studies by cryo-EM at 200 and 300 keV. Yet, theory recent experiments indicate advantages to imaging 100 keV, energies for which the current detectors not been optimized. In this study, we evaluated Gatan Alpine detector, designed operation Compared K3, demonstrated significant DQE improvement these energies, specifically ∼ 4-fold Nyquist single-particle experiments, datasets...
ABSTRACT Developments in direct electron detector technology have played a pivotal role enabling high-resolution structural studies by cryo-EM at 200 and 300 keV. Yet, theory recent experiments indicate advantages to imaging 100 keV, energies for which the current detectors not been optimized. In this study, we evaluated Gatan Alpine detector, designed operation Compared K3, demonstrated significant DQE improvement these voltages, specifically ~4-fold Nyquist single-particle experiments,...
The growth of the photovoltaic industry will be limited by availability silicon feedstock. Currently, feedstock supplies are scraps and surplus from microelectronics industry. A program has been initiated to produce solar grade (SoG) upgrading metallurgical (MG) using pyrometallurgical techniques in liquid state followed directional solidification. This approach is based on earlier results when all impurities, including B P, were reduced <1 ppm level. It intended analyze data, undertake...
A simple refining process of blowing moist gases over molten silicon removed high segregation impurities, especially B and P, reduced other impurities. Using this with heavily B-doped (Hi-B) scrap from the electronic industry will double feedstock available to PV short term. When is followed by directional solidification, it can be used for upgrading metallurgical grade (MG) produce solar (SoG) silicon. For long term, total processing in an MG production plant result $10/kg SoG feedstock.
We surveyed the marine gobies of Malapascua island (Philippines), surrounding islets and nearby Monad shoal. found 59 species in 19 genera, including 2 undescribed genus Trimma , 3 geographic 6 depth range expansions. Furthermore we describe a new type mimicry between goby Koumasetta hectori cardinalfish Apogon nigrofasciatus . The comparison versus shoal fauna showed lesser richness shrimp-associated at This likely reflects fact that hydrodynamic features environment play dominant role...
The most attractive approach to upgrade metallurgical-grade (MG) silicon is chemically refine impurities, especially boron (B) and phosphorus (P), in the molten state followed by directional solidification. problematic impurity B as it has highest segregation coefficient. A simple refining process of blowing gas through melt was developed reduce MG effectively, been scaled up charge sizes 150 kg. reduction maintained with increase confirmed using on B-doped at ten times concentration....
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Magneto-rheological finishing (MRF) imprinting techniques have been applied to Ti:sapphire crystals compensate for submillimeter distortions, thereby, improving the transmitted wavefront and increasing availability of large aperture parts.
We report on a technique to study the Lorentz effect compensation in muon end-cap cathode strip chambers detectors with solenoidal magnetic fields like GEM and CMS. The method utilizes pulsed UV laser for depositing track-like ionization chamber volume specially designed rotating anode wire frame. optimal angle was measured be 26.6±0.5° 3.4 T field using M1 magnet of RD5 experiment at CERN. results are good agreement simulations.
Abstract TEM image acquisition is subject to limitations in resolution imposed by the physics of position-sensitive detection process. existing on-line digital cameras consists scintillation, transfer and photon a CCD. Scintillator governed primarily incident beam energy. Material parameters affect only weakly. Some improvement can be made with thin transmission scintillator. Still, backscatter electrons from below form noisy background. Optical also has an important effect on overall camera...