نتایج جستجو برای: مواد تغییر فازدهنده pcm
تعداد نتایج: 154854 فیلتر نتایج به سال:
Paracoccidioidomycosis (PCM) is an infectious disease, endemic to subtropical areas of Central and South America, caused by the dimorphic fungus Paracoccidioides brasiliensis. It is a chronic disease, mostly affecting adult males, with a mean patient age of 44 years. Central nervous system involvement (CNS PCM) has been found in 13% of the patients with systemic disease. We reviewed the clinica...
The data capacity of aerospace PCM telemetry systems can be greatly improved by the application of data compression techniques, which exploit the redundancy in typical telemetry data. This paper describes the design concept for a compressed PCM (CPCM) telemetry system, and contrasts system design considerations to those involved in development of a conventional PCM system. Simulation results ar...
A thermal energy storage (TES) equipment utilizing phase change material (PCM) was designed and built. The PCM is sealed inside metal tubes and exchanges heat with process fluid flowing outside. The storage capacity characteristics of the system was analyzed based on date covering the inlet and outlet temperatures of the process fluid, volumetric flow rate of the process fluid, and temperature ...
Long-term cultures of bovine retinal capillary endothelial cells (BRCEC) have been established using bovine retinal pericyte conditioned medium (PCM). PCM had greater mitogenic activity on BRCEC than unconditioned medium (P less than 0.01). The mitogenic activity of PCM was not cell specific since bovine Tenon's fibroblast conditioned medium also had significant activity. PCM's activity was not...
background dedifferentiation of chondrocytes remains a major problem for cartilage tissue engineering. chondrocytes loss differentiated phenotype in in vitro culture that is undesired for repair strategies. the chondrocyte is surrounded by a pericellular matrix (pcm), together forming the chondron. pcm has a positive effect on the maintenance of chondrocyte phenotype during culture in compariso...
paracetamol (acetaminophen, pcm) is a widely used over-the-counter analgesic and antipyretic drug. intake of a large dose of pcm may result in severe hepatic necrosis. oxidative stress is mediated by oxidative capacities of the pcm metabolite (n-acetyl-para-benzo quinoneimine, napqi), which covalently binds to proteins and other macromolecules to cause cellular damage. at low doses, napqi is co...
In this paper an experimental investigation on the thermal storage capacity for a typical composite mixture of paraffinGraphiteCu PCM composite has been studied. Paraffin wax was used as the base phase change material (PCM) and the paraffin has been mixed with Cu turnings in different ratios 10, 50, 70 and 90 weight percentages and considered as a composite. The thermal charge and discharge cap...
فرضیه: امروزه کاربرد روشهای نوین برای تهیه انرژی پاک و تجدیدپذیر مانند انرژی گرمایی بیشتر احساس میشود. استفاده از مواد تغییر فاز (PCMs) از مهمترین روشهای ذخیرهسازی انرژی گرمایی است که بهعنوان مواد پاک و تجدیدپذیر در الیاف تنظیمکننده گرمایی برای منسوجات هوشمند بهکار گرفته میشوند. پلیاتیلنگلیکول (PEG) ماده تغییر فازجامد-مایع با ویژگیهای مناسب است که به کپسولیکردن نی...
Salt hydrates have issues of supercooling when they are utilized as phase change materials (PCMs). In this research, a new method was adopted to prepare a salt hydrate PCM (based on a mixture of calcium chloride dihydrate and calcium chloride anhydrous) as a novel PCM system to reduce the supercooling phenomenon existing in CaCl₂·6H₂O. Six samples with different compositions of CaCl₂ were prepa...
Background: Regarding the widespread prevalence of chronic diseases, nurses need to understand the choices, priorities, and abilities of patients in reality, their communication, and the social context in order to play their professional role and responsibility. This review study was conducted with two purposes: determining the effect of partnership-care-model (PCM) on the outcomes of chronic d...
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