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Displaying 426 - 450 of 1456

QUANTIFICATION OF UNCERTAINTIES IN THE RESPONSE OF BEAM-COLUMNS IN STEEL MOMENT FRAMES

June 25, 2018
Author(s)
Siamak Sattar, Jonathan M. Weigand, Kevin K. Wong
… and loading uncertainties on the performance of structural steel beam-columns. In this study, material uncertainty is … i.e., modeling uncertainty, on the predicted response of steel beam-columns is also quantified, by development of … OF UNCERTAINTIES IN THE RESPONSE OF BEAM-COLUMNS IN STEEL MOMENT FRAMES …

Performance of photon-number resolving transition-edge sensors with an integrated 1550 nm resonant cavity

June 1, 2005
Author(s)
Danna Rosenberg, Adriana Lita, Aaron J. Miller, Sae Woo Nam, Robert E. Schwall
… and anomalously low electron-phonon coupling of tungsten make it a suitable material for the fabrication of … that meet these requirements. The quantum efficiency of a tungsten TES detector, intrinsically around 15% at 1550 nm, can be increased by placing the tungsten detector in a resonant cavity, but the performance …

Modelling Service Life and Life-Cycle Cost of Steel-Reinforced Concrete

May 1, 1999
Author(s)
G J. Frohnsdorff
… Workshop on Modelling Service Life and Life-Cycle Cost of Steel-Reinforced Concrete was focused on possibilities for … models. Several models for chloride transport to the steel are well advanced, but modelling of chloride thresholds … Modelling Service Life and Life-Cycle Cost of Steel-Reinforced Concrete …

Retrofit of Pre-Northridge Moment-Resisting Connections

April 1, 2000
Author(s)
S A. Civjan, M D. Engelhardt, John L. Gross
… was undertaken to evaluate methods to retrofit existing steel moment connections for improved seismic performance. … building technology, seismic rehabilitation, steel moment connection, steel moment connection retrofit, welded bottom haunch …

Modeling of Double-Angle Shear Connections for Evaluation of Structural Robustness

October 31, 2012
Author(s)
Judy Liu, Joseph Main, Fahim H. Sadek
… Improved structural robustness is expected for steel gravity load-resisting frames with double-angle shear … robustness, or resistance to disproportionate collapse, of steel gravity frames. The detailed models have been validated … collapse, finite element analysis, progressive collapse, steel structures, structural robustness …

Emissivity of Silver and Stainless Steel From 80 K to 300 K: Application to ITER Thermal Shields Temperatures

January 21, 2014
Author(s)
Solomon I. Woods, Timothy M. Jung, Dale R. Sears, Jie Yu
… These thermal shields, made from SS304L stainless steel coated with silver, are designed to operate at 80 K, … lower than the emissivity of the bare polished stainless steel plate. We demonstrate that the emissivity of different … Emissivity of Silver and Stainless Steel From 80 K to 300 K: Application to ITER Thermal Shields …

Synthesis and properties of turbostratically disordered,ultrathin WSe2 films

May 11, 2010
Author(s)
Ngoc Nguyen, Polly Berseth, Qiyin Lin, Catalin Chiritescu, D.G. Cahill, Anastassios Mavrokefalos, Li Shi, Paul Zschack, Michael D. Anderson, Ian M. Anderson, David C. Johnson
… Turbostratically disordered tungsten diselenide (WSe2) thin films with as few as two … chalcogenides, tungsten diselenide, thin film deposition, X-ray diffraction, …

Vacuum Furnace for Degassing Stainless-Steel Vacuum Components

March 1, 2018
Author(s)
James A. Fedchak, Julia K. Scherschligt, Daniel S. Barker, Stephen P. Eckel, Alex P. Farrell, Makfir Sefa
… with ultra-low outgassing rates. Baking stainless steel vacuum components to a temperature range of 400 – 450 … Vacuum Furnace for Degassing Stainless-Steel Vacuum Components …

Thermo-chemical wear model and worn tool shapes for single-crystal diamond tools cutting steel

March 6, 2013
Author(s)
Brandon M. Lane, Thomas A. Dow, Ronald O. Scattergood
… for predicting diamond tool wear when machining low carbon steel. Tool temperature values are determined using finite … wear measured after diamond turning tests on a low carbon steel workpiece to determine constants in the Arrhenius-type … worn tool shapes for single-crystal diamond tools cutting steel …

Microstructural Evolution of Severely Plastically Deformed Austenitic Stainless Steel Using Precession Electron Diffraction

June 29, 2015
Author(s)
Yaakov S. Idell, Jorg Wiezorek
… The properties of austenitic stainless steel can be vastly improved through thermo-mechanical … the depth-dependent microstructure in austenitic stainless steel following SPD by linear plane-strain machining and its … of Severely Plastically Deformed Austenitic Stainless Steel Using Precession Electron Diffraction …

Secondary Ferrite Number Reference Materials: Gage Calibration and Assignment of Values

February 1, 2000
Author(s)
Christopher N. McCowan, Thomas A. Siewert, D P. Vigliotti, C M. Wang
… Ferrite Numbers (FN) were assigned to blocks of stainless steel that serve as secondary ferrite reference materials (RM … which is proportional to the ferrite content in stainless steel welds. The ferrite content influences the physical and mechanical properties of stainless steel welds. This report documents the procedures used to …

Imaging Material Components of an Integrated Circuit Interconnect

January 1, 2004
Author(s)
Zachary H. Levine, Steven E. Grantham, D J. Paterson, I McNulty, I C. Noyan, T M. Levin
… Two regions of interest on a copper/tungsten integrated circuit interconnect were imaged using … and 1722 eV. The energies were chosen to optionally excite tungsten and tantalum above their M 5 edges yet stay below … silicon K edge. Four materials in the circuits, tantalum, tungsten, silica, and copper were mapped using both …
Displaying 426 - 450 of 1456
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