
Innovative Diversity Metrics in Hierarchical Population-Based ...
The bald eagle search (BES) algorithm, mimicking the predatory strategies of bald eagles, is used in for PEMFC parameter estimation. This three-phase method (Selection, Search, and Swooping) has demonstrated a reduced error rate and improved …
Innovative Diversity Metrics in Hierarchical Population-Based ...
2024年12月18日 · In this study, the recently developed hierarchical population-based differential evolution (HPDE) was employed for parameter optimization of PEMFCs due to its robustness and demonstrated superiority over other optimization algorithms.
高密度聚乙烯 - 百度百科
高密度聚乙烯(HDPE),为白色粉末或颗粒状产品。 无毒,无味,结晶度为80%~90%,软化点为125~135℃,使用温度可达100℃;硬度、拉伸强度和蠕变性优于 低密度聚乙烯;耐磨性、电绝缘性、韧性及耐寒性较好; 化学稳定性 好,在室温条件下,不溶于任何有机溶剂,耐酸、碱和各种盐类的腐蚀;薄膜对水蒸气和空气的渗透性小,吸水性低;耐老化性能差,耐环境应力开裂性不如低密度聚乙烯,特别是热氧化作用会使其性能下降,所以树脂中须加入抗氧剂和 紫外线吸 …
hpde是什么材料 - 百度知道
2023年7月6日 · HPDE是一种高密度聚乙烯,也称高密度聚乙烯HDPE,是由一种称为乙烯的单体聚合而成的聚合物。 该材料具有高密度、高硬度、高刚度和高抗拉强度等特性,因此被广泛应用于电力设备、化工容器、管道、建筑材料等领域。 HPDE具有很好的耐腐蚀性,不会被酸碱、盐水和无机物腐蚀,同时也不会被虫蚁侵蚀。 此外,其具有高耐火性和较好的绝缘性能,可以在一定程度上保护人的生命安全。 此外,HPDE在制造过程中对环境污染较小,符合可持续发展的要求。 …
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We are dedicated to revolutionizing plastic waste management through innovative recycling methods, such as Basic Engergy Science (BES) and high-quality resin production. Our commitment to sustainability transforms waste into valuable …
HDPE: A Guide Into High Density Polyethylene and Its Uses
2025年1月22日 · HDPE (High Density Polyethylene) is more rigid and durable than LDPE (Low Density Polyethylene) due to its higher density and linear molecular structure. HDPE offers superior strength, impact resistance, and chemical resistance, making it ideal for applications such as pipes, containers, and industrial equipment.
HDPE,环保塑料之王 - 解读高性能聚乙烯的应用与未来发展
2024年11月28日 · HDPE,全称为High-Density Polyethylene,中文名直译为“高密度聚乙烯”,这是一种由石油裂解产物提炼而成的聚合物,以其出色的机械强度、耐化学腐蚀性和耐老化性而闻名,其分子结构紧密,密度比低密度聚乙烯(LDPE)要大,这使得HDPE具有更高的硬度和韧性。
高密度聚乙烯_化工百科 - ChemBK
高密度聚乙烯(hdpe)是一种聚合物材料,具有许多重要的应用,下面介绍一些常见的用途和合成方法: 1. 包装材料:hdpe具有优异的物理性质,如高强度、耐化学品和防水性能,广泛用于制作塑料袋、瓶子、容器等包装材料。 2.
Carbon Spectra – HDPE – High Density Poly-Ethylene – polymer
Accuracy of Published BEs. The accuracy depends on the calibration BEs used to calibrate the energy scale of the instrument. Cu (2p3) BE can vary from 932.2 to 932.8 eV for old publications; Different authors use different BEs for the C (1s) BE of the hydrocarbons found in adventitious carbon that appears on all materials and samples.
Properties of High Density Polyethylene (HDPE) - Matmake
High-Density Polyethylene (HDPE) is a type of plastic polymer made from petroleum. It is known for its high strength-to-density ratio and is widely used in various applications, including packaging, containers, pipes, and plastic lumber.