نتایج جستجو برای: stealth properties
تعداد نتایج: 870525 فیلتر نتایج به سال:
The stealth trading hypothesis (STH) states that informed traders concentrate their trades on medium sizes to conceal their information. Supporting empirical evidence for the NYSE case is considerable. In this paper, we question several methodological aspects of previous studies to provide new insights. We show that the STH cannot be rejected under alternative definitions of the trade-size cuto...
Infrared signature management (IRSM) has been a primary aeronautical concern for over 50 years. Most strategies and technologies are limited by the second law of thermodynamics. In this article, IRSM is considered in light of theoretical developments over the last 15 years that have put the absolute status of the second law into doubt and that might open the door to a new class of broadband IR ...
Nanoparticles with surface projected polyethyleneoxide (PEO) chains in "mushroom-brush" and "brush" configurations display stealth properties in systemic circulation and have numerous applications in site-specific targeting for controlled drug delivery and release as well as diagnostic imaging. We report on the "structure-activity" relationship pertaining to surface-immobilized PEO of various c...
Poly(γ-benzyl-L-glutamate) (PBLG) derivatives are synthetic polypeptides for preparing nanoparticles with well controlled surface properties. The aim of this paper was to investigate the biodistribution of pegylated PBLG in rats. For this purpose, nanoparticles were prepared by a nanoprecipitation method using mixtures of different PBLG derivates, including a pegylated derivate to avoid mononuc...
Immune evasion represents a critical strategy that many viruses have evolved to ensure survival in individual hosts and entire populations. In vertebrates, particularly mammals that are protected by a highly sophisticated immune system, viruses need to antagonize the many defense line drawn after antigen recognition and the ensuing differentiation and proliferation of virus-specific T and B cel...
This is a lucid read on a complex virus, cytomegalovirus (CMV), that affects those in all ages of life from the unborn fetus to the elderly pensioner. Griffiths has used one of the many self-publishing, internet-based services to publish and distribute this book via the popular amazon.com and amazon.co.uk websites. All profits from its sale are being donated to the Royal Free Charity, which has...
This paper presents an examination of the trading patterns of individual firms, looking at their coverage of export markets and movements into and out of destinations. This analysis is made possible by access to a new survey data set of Irish firms, which includes detailed information on firm characteristics and on the destinations of their exports over a two-year period. In line with Eaton, Ko...
Combination of flexible multifunctional stealth technology properties such as electromagnetic (EM) and infrared (IR) is crucial to the development aerospace, military, electronic fields, but synthesis still has a significant challenge. Herein, we have successfully designed synthesized highly [email protected] lamellae/borate ion (MXCB) sheets with strong high-temperature EM-IR bi-stealth throug...
PEGylated and non-PEGylated ORMOSIL nanoparticles prepared by microemulsion condensation of vinyltriethoxy-silane (VTES) were investigated in detail for their micro-structure and ability to deliver photoactive agents. With respect to pure silica nanoparticles, organic modification substantially changes the microstructure and the surface properties. This in turn leads to a modulation of both the...
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