Polypropylene foams are engineering plastic materials with unique material properties such as energy absorption, structural strength, thermal insulation, acoustical properties, and chemical inertia; these foams are recyclable and lightweight in nature. Polypropylene foams are manufactured by the catalytic polymerization of propylene. The exclusive properties of this material make it an appropriate material for lightweight, energy management, thermal insulation, and cushioning applications across various industries. Some of the major end-users of polypropylene foams include the Automotive, Packaging, and Consumer Products industries.

关键词：聚丙烯泡沫；材料工程；塑胶原料；独特；材料性；催化聚合制备

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Parkinson’s disease is a progressive neurodegenerative disorder characterized by damage to the dopaminergic neurons located in various parts of the brain, including the substantia nigra. This lowers the concentration of dopamine in the striatum by 80 percent. This decrease in dopamine levels leads to symptoms associated with Parkinson’s disease such as tremors, bradykinesia, and muscular rigidity. It is usually diagnosed at the age of 60; however, earlier incidence has been reported. Based on the severity, it can be categorized into the early-stage, mid-stage, and late-stage disease. Currently, approved therapies provide only symptomatic relief for the disease. Levodopa is the standard drug for the treatment of Parkinson’s disease;however, it is associated with the incidence of dyskinesias. Alternative surgical procedures such as bilateral globus pallidus interna stimulation and bilateral subthalamic nucleus stimulation can be used in Parkinson’s disease patients under certain circumstances.

关键词：帕金森氏病；进行性；神经变性疾病；多巴胺能神经元；左旋多巴

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Retinal vein occlusion is the blockage of retinal veins leading to the blockage of blood flow in the retina. This disease is likely to affect individuals suffering from hypertension, diabetes mellitus,or hyperlipidemia. Retinal vein occlusion is one of the most common vascular disorders, as well as one of the most common causes of blindness in diabetic retinopathy patients. There are two types of retinal vein occlusion: central retinal vein occlusion and branch retinal vein occlusion. Central retinal vein occlusion can further be divided into ischemic central retinal vein occlusion and non-ischemic central retinal vein occlusion.

关键词：视网膜静脉阻塞；视网膜静脉；血流；糖尿病；高脂血症

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Genomics is the study of genetic material or genomes of an organism.

关键词：基因；遗传物质；生物体；基因组；诊断；治疗方案

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SNP genotyping is the screening and analysis of genetic variations of SNPs in the genome of various species. SNPs are commonly present in all species including humans. SNP genotyping and analysis technology can analyze thousands of SNPs and has the potential for wholegenome genotyping. It is the most common genetic variation that occurs in the genetic makeup. It is an emerging field in life science, which provides an in-depth analysis of SNPs. It is generally used by researchers for genomics study. It has a broad range of applications in several industries such as Pharmaceuticals and Pharmacogenomics, Diagnostics Research, Agriculture Biotechnology, and Breeding and Animal Livestock. There are several technologies which are used for SNP genotyping and analysis such as SNP GeneChips and microarrays, TaqMan allelic discrimination, SNP by pyrosequencing, SNPlex, and MassARRAY MALDI-TOF.

关键词：SNP；基因分型；筛选；遗传变异分析；基因组

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The report covers the present scenario and the growth prospects of the Global Polyamide market for the period 2014-2018. To calculate the market size, the report considers the revenue generated from the sales of polyamide, and the volume of polyamide consumed by various sectors and industries. To rank the leading polyamide vendors, this report considers the revenue generated by these vendors through the sales of polyamide. It presents the vendor landscape and a detailed analysis of the top four vendors in the market.

关键词：聚酰胺；金属取代；聚合物；热学；机械；电气；声学特性

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Biomass power generation is a source method of power generation through carbon-contained wastes of various human and natural activities. These wastes are derived from various sources, including the byproducts from the Timber industry, sugarcane crop, woody plants, agricultural residue, oil-rich algae, and the organic part of municipal and industrial wastes. Power generation through biomass is gaining popularity these days. Recovering energy from garbage has developed over the years from the simple incineration of waste in an uncontrolled environment to the controlled combustion of waste with energy recovery and ensuring that emissions are within the limits. Biomass is an ideal substitute for conventional fossil fuels for heating and power generation purposes. There are a number of technical options available to make use of a wide variety of biomass types as a renewable energy source. Conversio technologies may release the energy directly, in the form of heat or electricity, or may convert it to another form, such as liquid biofuel or combustible biogas.

关键词：生物质发电；人类；自然活动；废物

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Understanding the diverse PHEV purchase behaviors among prospective new car buyers is key for designing efficient and effective policies for promoting new energy vehicle technologies. The ORNL MA3T model developed for the U.S. Department of Energy is described and used to project PHEV purchase probabilities by different consumers. MA3T disaggregates the U.S. household vehicle market into 1458 consumer segments based on region, residential area, driver type, technology attitude, home charging availability and work charging availability and is calibrated to the EIA's Annual Energy Outlook. Simulation results from MA3T are used to identify the more likely PHEV buyers and provide explanations. It is observed that consumers who have home charging, drive more frequently and live in urban area are more likely to buy a PHEV. Early adopters are projected to be more likely PHEV buyers in the early market, but the PHEV purchase probability by the late majority consumer can increase over time when PHEV gradually becomes a familiar product.

关键词：混合动力电动汽车；燃料电池；汽车；消费

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Low-voltage switchgears are a combination of several components such as circuit breakers, lightning arrestors, current transformers, protection panels, and disconnectors. They are used to effectively control and distribute electric power across residential, commercial, and industrial premises in order to protect electrical circuits and equipment from unregulated power spikes. Low-voltage switchgear products mainly include panel boards, distribution switchboards, and switches.

关键词：低电压；开关设备；避雷器；电流互感器；保护板；隔离；保护；电气线路

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Biodiesel has attracted considerable attention during the past decade as a non-toxic fuel because of the environmental benefits it offers. Biodiesel is made from sources such as vegetable oil and animal fat. However, it has not been able to make inroads into the market and gain popularity among users because it is dependent on the availability, quality, and yield of feedstock, which accounts for more than four-fifths of the cost of biodiesel production.

关键词：生物柴油；无毒燃料；植物油；动物脂肪

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