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You searched on: Topic Area: Energy

Displaying records 31 to 40 of 137 records.
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31. Multi-Walled Carbon Nanotube Layer-by-Layer Coatings With a Novel Trilayer Structure to Reduce Foam Flammability
Topic: Energy
Published: 10/29/2013
Authors: Rick D Davis, Yeon Seok Kim, Amanda A Cain, Jaime C. Grunlan
Abstract: The research presented here is the first report of fabricating multi-walled carbon nanotube (MWCNT) based thin coatings on polyurethane foam (PUF) using Layer-by-Layer assembly, and using MWCNTs to reduce the flammability of PUF. The (440.6 ± 47.1) ...

32. Analyzing a Co-Polymer Aramid Fiber for Use in Soft Body Armor
Topic: Energy
Published: 10/25/2013
Authors: Walter G McDonough, Jae Hyun Kim, Nathanael A Heckert, Amanda Lattam Forster, Scott A Wight, Joy P Dunkers, Gale Antrus Holmes
Abstract: Since the well-publicized failure of body armor used by a police officer, it has become imperative that the long-term properties and performance of new fibers being considered for use be understood. The range of interest is from the molecular proper ...

33. Statistical Prediction of Sealant Modulus Change due to Outdoor Weathering
Topic: Energy
Published: 10/17/2013
Authors: Christopher C White, Kar T. Tan, Donald Lee Hunston, Adam L Pintar, James J Filliben
Abstract: Recently a statistically based model has been created to predict the change in modulus for a sealant exposed to outdoor weathering. The underlying high precision data supporting this model was obtained using the NIST SPHERE (Simulated Photo degrada ...

34. Effect of Concentration on R134a/Al2O3 Nanolubricant Mixture Boiling on a Reentrant Cavity Surface with Extensive Measurement and Analysis Details
Series: Technical Note (NIST TN)
Report Number: 1813
Topic: Energy
Published: 9/25/2013
Author: Mark A Kedzierski
Abstract: This paper quantifies the influence of Al2O3 nanoparticles on the pool boiling performance of R134a/polyolester mixtures on a Turbo-BII-HP boiling surface. Nanolubricants with 10 nm diameter Al2O3 nanoparticles of various volume fractions (1.6 %, 2. ...

35. Development of a Quantum-Voltage-Calibrated Noise Thermometer at NIM
Topic: Energy
Published: 9/11/2013
Authors: Jifeng Qu, Samuel Paul Benz, Jianqiang Zhang, Horst Rogalla, Yang Fu, Alessio Pollarolo, Jintao Zhang
Abstract: A quantum-voltage-calibrated Johnson-noise thermometer was developed at NIM, which measures the Boltzmann constant k through comparing the thermal noise across a 100  sense resistor at the temperature of the triple point water to the comb-lik ...

36. Johnson-noise thermometry based on a quantized-voltage noise source at NIST
Topic: Energy
Published: 9/11/2013
Authors: Alessio Pollarolo, Tae H. Jeong, Samuel Paul Benz, Paul David Dresselhaus, Horst Rogalla, Weston Leo Tew
Abstract: Johnson Noise Thermometry is an electronic approach to measuring temperature. For several years, NIST has been developing a switching-correlator-type Johnson-noise thermometer that uses a quantized voltage noise source as an accurate voltage referenc ...

37. Absolute spectral responsivity measurements of solar cells by a hybrid optical technique
Topic: Energy
Published: 7/15/2013
Authors: Behrang H Hamadani, John F Roller, Brian P Dougherty, Fiona Persaud, Howard W Yoon
Abstract: An irradiance mode, absolute differential spectral response measurement system for solar cells is presented. The system is based on combining the monochromator-based approach of determining the power mode spectral responsivity of cells with an LED-b ...

38. Flat Frequency Response in the Electronic Measurement of the Boltzmann Constant
Topic: Energy
Published: 6/1/2013
Authors: Jifeng Qu, Horst Rogalla, Yang Fu, Jianqiang Zhang, Alessio Pollarolo, Samuel Paul Benz
Abstract: A new quantum voltage calibrated Johnson noise thermometer (JNT) was developed at NIM to demonstrate the electrical approach that determines the Boltzmann constant k by comparing electrical and thermal noise power. A measurement with an integration p ...

39. Johnson Noise Thermometry Measurement of the Boltzmann Constant with a 200 Ohm Sense Resistor
Topic: Energy
Published: 6/1/2013
Authors: Alessio Pollarolo, Tae H. Jeong, Samuel Paul Benz, Horst Rogalla
Abstract: In 2010, NIST measured the Boltzmann constant k with an electronic technique that measured the Johnson noise of a 100 Ω resistor at the triple point of water (TPW) and used a voltage waveform synthesized with a quantized voltage noise source (QV ...

40. A focused super-continuum solar simulator for illuminated solar cell microscopy
Topic: Energy
Published: 5/12/2013
Author: Tasshi Dennis
Abstract: The design and application of a novel, focused solar simulator based on a high-power, super-continuum laser is described. We used the simulator to create micrometer-scale spatial maps of full-spectrum optical beam induced current (FS-OBIC) in sam ...

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