Research progresses of complex perovskite dielectric ceramics of lead and lead free type were systematically reviewed.
将复合钙钛矿型介质陶瓷材料分成铅系和无铅系两大类,分别讨论了它们的研究进展,结果表明:采用高活性原料及两步固相合成法、湿化学等方法制备铅系复合钙钛矿材料,可以有效抑制铅挥发及杂相的出现,得到单相钙钛矿相;无铅型复合钙钛矿材料性能主要由不同的A或B位离子复合决定,并通过采用湿化学方法得到改善。
The influence of different mediums on modified research of corn starch by ultra high pressure;
介质对超高压改性玉米淀粉的影响
Research on Ball Mill Work Index and Adaptability of Autogenous Medium of Copper Ore Containing Iron in Yunnan;
云南某含铁铜矿石球磨功指数及自磨介质适应性试验研究
The improvement of the fishing net paling medium on the eutrophic waters in Meiliang Bay, Taihu Lake;
渔网围栏介质对太湖梅梁湾富营养化水体的改善
Research on Ultrasonic Vibration Multi-dielectrics Electrical Discharge Milling Machine Tool;
超声辅助多介质电火花铣削加工机床的研究
Research on Simulation of Deep Charging for Spacecraft Dielectrics;
航天器介质深层充电模拟研究
The design of slotted dielectric-covered rectangular wave-guide arrays;
敷介质矩形波导缝隙天线阵的设计
Study on grinding media consumption of secondary ore grinding in Qidashan Beneficiation Plant and Donganshan Sinter Plant;
齐选厂与东烧厂二次磨矿介质消耗研究
Research advance in photodegradation and photoactive-biological oxidation of polycyclic aromatic hydrocarbons(PAHs) in different media;
不同介质中多环芳烃光降解及与生物耦合降解研究现状
N release characteristics of controlled/slowed-release fertilizer in different media and its effects evaluation;
控/缓释肥在不同介质中的氮素释放特性及其肥效评价
That the traditional itch mediators such as histamine,serotonin,or acetylcholine were demonstrated to act pruritogenically o.
近年来的研究发现,传统的瘙痒介质,如组胺、血清素、乙酰胆碱等,通过刺激C类神经纤维产生瘙痒;此外,在皮肤感觉神经纤维也发现有阿片样肽、香草基衍生物等瘙痒介质的受体存在,提示这些介质可能通过与皮肤感觉神经纤维的受体结合介导瘙痒。
Methods The role of inflammatory mediators(IL-1β,IL-6, TNFα, PLA2, endotoxin, and amylase) were studied in ANP model established by retrograde injection of 3.
观察炎性介质白细胞介素IL 1β、IL 6、肿瘤坏死因子 (TNFα)、内毒素、淀粉酶、磷酯酶A2 (PLA2 )的变化和山莨菪碱的作用。