نتایج جستجو برای: مواد تغییرفازدهنده pcm
تعداد نتایج: 92998 فیلتر نتایج به سال:
Phase change memory (PCM) is a promising memory technology that can offer higher memory capacity than DRAM. Unfortunately, PCM’s access latencies and energies are higher than DRAM and its endurance is lower. DRAM-PCM hybrid memory systems use DRAM as a cache to PCM, to achieve the low access latencies and energies, and high endurance of DRAM, while taking advantage of the large PCM capacity. A ...
BACKGROUND centrosomes are major microtubule organizing centers in animal cells, and they comprise a pair of centrioles surrounded by an amorphous pericentriolar material (PCM). Centrosome size is tightly regulated during the cell cycle, and it has recently been shown that the two centrosomes in certain stem cells are often asymmetric in size. There is compelling evidence that centrioles influe...
الیاف و منسوجاتی که ویژگی تطبیق پذیری با شرایط آب و هوایی پیرامون را دارند اخیراً توجه زیادی به خود جلب کرده اند. می توان با استفاده از مواد تغییر دهنده ی فاز به این ویژگی دست پیدا کرد. مواد تغییر دهنده فاز از نظر تئوری توانایی تغییر حالت در دمای تقریباً ثابت و ذخیره ی مقدار زیادی انرژی را دارند. این مواد به دو گروه آلی و معدنی تقسیم می شوند. مواد معدنی به دلیل دانسیته ی ذخیره ی حجمی بالا، رسانای...
Phase change memory (PCM) is a promising alternative to DRAM, though its high latency and energy costs prohibit its adoption as a drop-in DRAM replacement. Hybrid memory systems comprising DRAM and PCM attempt to achieve the low access latencies of DRAM at the large capacities of PCM. However, known solutions neglect to assess the utility of data placed in DRAM, and hence fail to achieve high p...
We identified Xenopus pericentriolar material-1 (PCM-1), which had been reported to constitute pericentriolar material, cloned its cDNA, and generated a specific pAb against this molecule. Immunolabeling revealed that PCM-1 was not a pericentriolar material protein, but a specific component of centriolar satellites, morphologically characterized as electrondense granules, z 70–100 nm in diamete...
Background and study aims The pocket-creation method (PCM) is a novel strategy for endoscopic submucosal dissection (ESD). The aim of this study is to determine the efficacy of the PCM for colorectal laterally spreading tumors, non-granular type (LST-NG). Patients and methods The records of 126 consecutive patients with colorectal LST-NG who underwent ESD between April 2012 and July 2015 were r...
A technique called phase contrast mammography (PCM) has only recently been applied in clinical examination. In this application, PCM images are acquired at a 1.75 x magnification using an x-ray tube for clinical use, and then reduced to the real size of the object by image processing. The images showed enhanced object edges; reportedly, this enhancement occurred because of the refraction of x r...
When considering the principles of a pain control strategy by patients, reliable administration of additional bolus doses is important for providing the adequate analgesia and improving patient satisfaction. We compared the efficacy of elastomeric patient-control module (PCM) with conventional PCM providing epidural analgesia postoperatively.A noninferiority comparison was used. Eighty-six pati...
Platelets release a soluble factor into blood and conditioned medium (PCM) that decreases vascular endothelial permeability. The objective of this study was to determine the signal-transduction pathway that elicits this decrease in permeability. Permeability-decreasing activity of PCM was assessed by the real-time measurement of electrical resistance across cell monolayers derived from bovine p...
Phase change materials (PCM) take advantage of latent heat that can be stored or released from a material over a narrow temperature range. PCM possesses the ability to change their state with a certain temperature range. These materials absorb energy during the heating process as phase change takes place and release energy to the environment in the phase change range during a reverse cooling pr...
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