Improved Performance Characteristics For Indium Antimonide Photovoltaic Detector Arrays Using A FET-Switched Multiplexing Technique

1985 ◽  
Author(s):  
Curtiss A. Niblack
Keyword(s):  
Indium Antimonide ◽  
Performance Characteristics ◽  
Detector Arrays ◽  
Improved Performance ◽  
Photovoltaic Detector

scholarly journals Improved Specificity of a New Homogeneous Assay for LDL-Cholesterol in Serum with Abnormal Lipoproteins

2006 ◽  
Vol 52 (5) ◽  
pp. 886-888 ◽  
Author(s):  
Yasumasa Iwasaki ◽  
Hiroyuki Matsuyama ◽  
Nobuo Nakashima
Keyword(s):  
Clinical Practice ◽  
Obstructive Jaundice ◽  
Ldl Cholesterol ◽  
Performance Characteristics ◽  
New Method ◽  
Assay Performance ◽  
Basic Performance ◽  
Homogeneous Method ◽  
Homogeneous Assay ◽  
Improved Performance

Abstract Background: Although a homogeneous assay for serum LDL-cholesterol (LDL-C) has become a routine clinical procedure, problems remain in assay performance characteristics. Methods: We examined the performance of a recently developed automated homogeneous assay (New-Daiichi assay) for serum LDL-C and compared the results with those obtained by the current homogeneous method (Denka-Seiken assay) or by ultracentrifugation as a control. Results: The New-Daiichi assay showed satisfactory basic performance characteristics such as reproducibility, linearity, and stability. There was no interference in the assay by various substances examined. The LDL-C values obtained with this method correlated well with those obtained by ultracentrifugation. In samples from patients with obstructive jaundice, both methods detected cholesterol from abnormal lipoproteins (such as lipoprotein-X and -Y), but the New-Daiichi assay was less reactive and more specific for LDL-C. Conclusion: The new method has improved performance for the accurate measurement of LDL-C in clinical practice.

Methods and Materials of Nanotechnologies for Improving the Boiler Fuel Properties

2018 ◽  
Vol 284 ◽  
pp. 767-772 ◽  
Author(s):  
E.R. Zvereva ◽  
A.O. Makarova ◽  
O.S. Zueva
Keyword(s):  
Carbon Nanotubes ◽  
Dispersion Medium ◽  
Hydrocarbon Fuel ◽  
Performance Characteristics ◽  
Boiler Fuel ◽  
Additional Structure ◽  
Joint Application ◽  
Carbonate Sludge ◽  
Composite Fuel ◽  
Improved Performance

It was shown that nanotechnology methods and materials can be used to create a composite fuel with improved performance characteristics. To reduce the viscosity of various types of hydrocarbon fuel, small amounts of nanoparticles can be added, leading to an additional structure formation, which may result in a change in the rheological properties due to the transition to layerwise shear flow. The possibilities of using carbon nanotubes and dehydrated carbonate sludge of water treatment were analyzed. The presence of a synergistic effect in the joint application of carbon nanotubes with carbonate sludge has been established. It has been shown that the choice of corresponding nanoparticles and their dispersion medium for a particular type of hydrocarbon fuel can significantly improve its performance characteristics.

A New Cyclic Impact Test Instrument and Methodology for Hand-Struck Tools

2003 ◽  
Author(s):  
J. L. Glancey ◽  
P. Popper ◽  
M. Mitch ◽  
P. Truitt ◽  
N. Nasr ◽  
...  
Keyword(s):  
Test Methods ◽  
Standard Test ◽  
Performance Characteristics ◽  
Work Piece ◽  
Testing Device ◽  
Impact Measurement ◽  
Subsequent Work ◽  
Noise Measurements ◽  
Improved Performance

The use of hand-struck tools is still a necessary job function for technicians in several industries throughout the world. Despite the importance of these tools, evolving concerns regarding the detrimental effects of their long-term use continue to grow. Repetitive motion injuries, nerve damage of the hands and arms, and hearing loss are some of the problems that continue to afflict users of these types of tools. Although hammer-tool systems are relatively simple mechanical systems that have required very little improvement historically, the growing concerns associated with their use necessitate a thorough evaluation of current tool designs. In addition, the introduction of new and modified tools with improved performance characteristics will be essential to maintaining their long term, effective use in the workplace. Currently, no standard test methods exist to assess the performance characteristics of hand-struck tools. This makes evaluations and comparisons very difficult since performance characteristics are significantly influenced by the user of the tool. As a result, for the purposes of assessing the performance of current hammer-tool systems as well as evaluating alternate designs, a new testing device for hand-struck tools was developed. The device is designed to simulate the approximate cyclic kinematic motion of a user repeatedly hitting a tool with a conventional hammer. A computer controller automates the striking and return stroke actions, and the resulting impact velocity and force exerted by the hammer are adjustable and approximate the performance of a human. For the purpose of development, the testing device was designed to accept steel hand-struck chisels. As configured, a chisel is placed in the device and used to shear a standard, replaceable work piece. The key output of this test is the number of impacts needed to fail the standard piece. Other features integrated into the device include a load cell under the work piece to capture the force exerted during a hammer impact, measurement of the hammer velocity at impact, noise measurements, and an automatic counter to record the number of hammer impacts required to fail the work piece. Preliminary tests with standard, conventional chisels indicate the device is capable of failing a standard 6.5 mm steel drill rod work piece in the same number of hammer blows as an experienced chisel user. Subsequent work will focus on characterizing and improving the properties of hammer-chisel systems relevant to the detrimental effects associated with their long term use.

Indium antimonide large-format detector arrays

2011 ◽  
Vol 50 (6) ◽  
pp. 061016 ◽  
Author(s):  
Mike Davis
Keyword(s):  
Indium Antimonide ◽  
Large Format ◽  
Detector Arrays

scholarly journals Aromatic polyethersulphones with improved performance characteristics

2020 ◽  
Vol 934 ◽  
pp. 012009
Author(s):  
R Ch Bazheva ◽  
A M Kharaev ◽  
A S Borodulin ◽  
A N Kalinnikov
Keyword(s):  
Performance Characteristics ◽  
Improved Performance
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