Aerospace series. Paints and varnishes. Two components cold curing polyurethane finish. High flexibility and chemical agent resistance for military application

2015 ◽  
Keyword(s):  
Chemical Agent ◽  
Military Application ◽  
High Flexibility

scholarly journals The Chemical Weapons Convention Implementation Act: United States Control Over Exports

1996 ◽  
Vol 90 (1) ◽  
pp. 138-149
Author(s):  
Rex J. Zedalis
Keyword(s):  
United States ◽  
The United States ◽  
The State ◽  
Export Control ◽  
Chemical Weapons ◽  
Chemical Agent ◽  
Military Application ◽  
Chemical Weapons Convention ◽  
The Military ◽  
Total Sales

During 1994, the total sales value of chemicals exported from the United States exceeded $51 billion, up 15 percent over the previous year and resulting in the chemical sector outpacing all other sectors that finished the year with favorable trade balances. Chemicals leaving the United States were shipped under the control provisions of both the Department of Commerce's Export Administration Regulations (EAR), and the Department of State's International Traffic in Arms Regulations (ITAR). Though this is something of an oversimplification, the EAR basically concerns itself with products that have civilian application, and the ITAR with products of use to the military. Currently, the Commodity Control List of the EAR, overseen by Commerce's Office of Export Licensing within the Bureau of Export Administration, identifies fifty-four chemicals and ten toxins as intermediate agents and precursors to chemical weapons subject to export regulation. The Munitions List of the ITAR, administered by the Office of Defense Trade Controls of the State Department's Bureau of Politico-Military Affairs, identifies twenty-two chemicals as subject to regulation and cautions that this listing is merely illustrative, as any “chemical agent,” defined as “a substance having military application,” is subject to export control.

Atom-probe analysis of the solid-liquid interface

1995 ◽  
Vol 53 ◽  
pp. 676-677
Author(s):  
J.A. Panitz
Keyword(s):  
Molecular Level ◽  
Selective Adsorption ◽  
Electronic Devices ◽  
Atom Probe ◽  
Chemical Agent ◽  
Hostile Environment ◽  
Solid Interface ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Chemically Selective

The first few atomic layers of a solid can form a barrier between its interior and an often hostile environment. Although adsorption at the vacuum-solid interface has been studied in great detail, little is known about adsorption at the liquid-solid interface. Adsorption at a liquid-solid interface is of intrinsic interest, and is of technological importance because it provides a way to coat a surface with monolayer or multilayer structures. A pinhole free monolayer (with a reasonable dielectric constant) could lead to the development of nanoscale capacitors with unique characteristics and lithographic resists that surpass the resolution of their conventional counterparts. Chemically selective adsorption is of particular interest because it can be used to passivate a surface from external modification or change the wear and the lubrication properties of a surface to reflect new and useful properties. Immunochemical adsorption could be used to fabricate novel molecular electronic devices or to construct small, “smart”, unobtrusive sensors with the potential to detect a wide variety of preselected species at the molecular level. These might include a particular carcinogen in the environment, a specific type of explosive, a chemical agent, a virus, or even a tumor in the human body.

Single Cell Based Microelectrode Array Biosensors

2003 ◽  
Vol 773 ◽  
Author(s):  
Mo Yang ◽  
Shalini Prasad ◽  
Xuan Zhang ◽  
Mihrimah Ozkan ◽  
Cengiz S. Ozkan
Keyword(s):  
Electrical Activity ◽  
Single Cell ◽  
Cellular Response ◽  
Microelectrode Array ◽  
Fast Fourier Transformation ◽  
Chemical Agent ◽  
Extracellular Potential ◽  
Membrane Excitability ◽  
Specific Chemical ◽  
Chemical Agents

AbstractExtracellular potential is an important parameter which indicates the electrical activity of live cells. Membrane excitability in osteoblasts plays a key role in modulating the electrical activity in the presence of chemical agents. The complexity of cell signal makes interpretation of the cellular response to a chemical agent very difficult. By analyzing shifts in the signal power spectrum, it is possible to determine a frequency spectrum also known as Signature Pattern Vectors (SPV) specific to a chemical. It is also essential to characterize single cell sensitivity and response time for specific chemical agents for developing detect-to-warn biosensors. We used a 4x4 multiple Pt microelectrode array to spatially position single osteoblast cells, by using a gradient AC field. Fast Fourier Transformation (FFT) and Wavelet Transformation (WT) analyses were used to extract information pertaining to the frequency of firing from the extracellular potential.

A high flexibility mobile communications satellite payload

1992 ◽  
Author(s):  
P. FRAISE ◽  
B. COULOMB ◽  
A. DARBANDI ◽  
R. LENORMAND ◽  
D. RENE ◽  
...  
Keyword(s):  
Mobile Communications ◽  
High Flexibility

Application of Automated FIB for TEM Sample Preparation in Semiconductor Failure Analysis

2014 ◽  
Author(s):  
Jie Zhu ◽  
Soo Sien Seah ◽  
Irene Tee ◽  
Bing Hai Liu ◽  
Eddie Er ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Success Rate ◽  
Protective Layer ◽  
Factors Affecting ◽  
Dual Beam ◽  
Lamella Thickness ◽  
Surface Patterns ◽  
Working Parameters ◽  
Practical Factors ◽  
High Flexibility

Abstract In this paper, we describe automated FIB for TEM sample preparation using iFast software on a Helios 450HP dual-beam system. A robust iFast automation recipe needs to consider as many variables as possible in order to ensure consistent sample quality and high success rate. Variations mainly come from samples of different materials, structures, surface patterns, surface topography and surface charging. The recipe also needs to be user-friendly and provide high flexibility by allowing users to choose preferable working parameters for specific types of samples, such as: grounding, protective layer coating, milling steps, and final TEM lamella thickness/width. In addition to the iFast recipe, other practical factors affecting automation success rate are also discussed and highlighted.

Removal of copper (Cu2+) by preparation modified carbon from macadamia shells by chemical agent with H2O2 in wastewater

2020 ◽  
pp. 215-221
Keyword(s):  
Heavy Metal ◽  
Processing Time ◽  
Chemical Agent ◽  
Optimum Conditions ◽  
Adsorption Ability

Macadamia shells were used to prepare modified carbon by chemical agent H2O2 (25%) in 48 hours with coke ratio: H2O2 = 1:10. Modified carbon from Macadamia shells with chemical agent H2O2 has capable of adsorption heavy metal copper (Cu 2+) at an assumption concentration is 30ppm in the optimum conditions such as pH = 4, dose is 1.8 g/l, and the processing time is 30 minutes. The result showed that the adsorption ability of the material reached the highest efficiency is 78.33%. This result showed that modified carbon from shells Macadamia by chemical agent H2O2 capable of removing applications on heavy metal copper (Cu2+) in wastewater.

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