نتایج جستجو برای: reactive area
تعداد نتایج: 734293 فیلتر نتایج به سال:
In a prospective longitudinal adult study, vascular nitric oxide bioavailability measured as reactive hyperemia index was significantly higher at enrollment in patients who developed dengue hemorrhagic fever (DHF) (n = 11), compared with the non-DHF group (n = 63) and those with other febrile illnesses (n = 25) (P = .01). After adjustment for age, fever day, and body mass index, enrollment reac...
The Challenge A main bottleneck precluding the on-chip integration of a switching power converter for energy management purposes is the large area of the reactive components, the resulting high output ripples and the tendency to exhibit fast-scale instabilities. Through a compact IC-suitable circuit, the presented innovation extends the design space by concurrently decreasing the size of reacti...
This chapter was prepared primarily for "non power" engineers to introduce reactive power and voltage control concepts, and to identify several issues that remain as research challenges in this area. It begins with basic definitions and information on reactive power, and then focuses on problems that have been known for many years and have surfaced recently in power system operations. These pro...
A patient who had previously undergone resection of a malignant glioma followed by radiation therapy was found to have a focus of a high accumulation of thallous chloride Tl 201 on single-photon emission CT scans, suggesting recurrent tumor. Resection of this area was performed and the specimen showed radiation necrosis, including such reactive changes as reactive astrocytes and lymphocytes in ...
Data in the literature supports the hypothesis that reactive oxygen species generated in the vascular wall alter vascular regulation. At present the majority of the literature tends to suggest that oxidant induced damage on the smooth muscle cell impair vasoconstriction. However, direct action of oxidants on the smooth muscle cell impair vasoconstrictor function. Differences in studies in the l...
MANET stands for mobile ad hoc network. It is an infrastructure less network. In these mobile nodes are moved randomly and changes their link quickly. So, topology changes quickly. Due to changing topology and limited bandwidth manet is important research area. In MANET nodes acts as a host and router. In this if nodes are within range they can communicate directly otherwise the node forwards t...
Wireless sensor networks consists of thousands of tiny, low cost, low power and multifunctional sensor nodes where each sensor node has very small battery life. Routing in these networks has been active area of research. Due to dynamic nature of the wireless sensor networks, it is suggested to use reactive routing protocols. One of the popular reactive routing protocols is AODV which is being u...
Abstract Investigating the interaction of organic inhibitors with metal and alloy surfaces is crucial for an atomic-scale understanding their protection efficiency, particularly on initiation localized corrosion by pitting. Quantum chemical DFT calculations were performed to optimize constructed model a depassivated copper surface study adsorption 2-mercaptobenzothiazole (MBT), different zones ...
Live Sequence Charts (LSCs) is a visual requirements language for specifying reactive system behavior. When modeling and designing open reactive systems, it is often essential to have a guarantee that the requirements can be satisfied under all possible circumstances. We apply results in the area of controller synthesis to a subset of the LSC language to decide the realizability of LSC requirem...
Traumatic brain injury (TBI) causes many long-term neurological complications. Some of these conditions, such as posttraumatic epilepsy, are characterized by increased excitability that typically arises after a latent period lasting from months to years, suggesting that slow injury-induced processes are critical. We tested the hypothesis that trkB activation promotes delayed injury-induced hype...
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