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根据与Al基体不同的取向关系,至少有15种η沉淀物,分别用数字表示。每个沉淀物具有不同的形态和大小以及与Al基体独特的界面结构,这些已被TEM证实。在不同取向的η沉淀物中,η1、η2和η4是最常见观察到的类型;特别是,这样的合金中不到1...
通过界面外延法成功制备了具有高电流密度和载流子迁移率的六方过渡金属二硫化物(3R-TMDs)单晶。在硫化钼(MoS2)、硒化钨(WSe2)和 MoS2(1-x)Se2x等组成物上,实现了从几层到 15,000 层的厚度控制,并实现了晶片尺度的生长。[相关报道:北京大学,Science!]...
RACE & CLASS RACE CLASS RACE ETHNICITY AND EDUCATION RACE ETHN EDUC RACE, ETHNICITY, AND MULTICULTURALISM MO S RES EDUC POL RACE, ETHNICITY, AND POLITICS RACE ETHN POLIT RACE, SOCIAL IDENTITY, AND HUMAN DIGNITY SOC PHILOS TODAY RACIALIZED POLITICS STUD COMMUN MEDIA RACISM, XENOPHOBIA AND ETHNIC...
ParserNG comes with a FunctionManager class that allows users persist store functions for the duration of the session(JVM run). You may create and store a function directly by doing: FunctionManager.add("f(x,y) = x-x/y"); And then retrieve and use the function like this: ...
Ionic liquids are a class of emerging material for liquid membrane. Room-temperature ionic liquids are molten electrolytes that exhibit interesting solvent properties including nonvolatility and nonflammability, high viscosity, high thermal stability, and high solubility of a broad range of organic and ...
multi-class classification: more than two options refression predict numbers Unsupervised learning: "I'm not sure of the outputs but I have inputs" cluster Transfer learning: "I think my problem may be similar to something else" Reinforcement learning ...
Humans are exposed to phthalates, a class of non-persistent chemicals, through multiple products, including personal care and cosmetics. Associations between specific phthalates and product use have been inconsistent. However, determining these connectio
Science quotes on: |Age(509)|Avenge(2)|Beginning(312)|Cease(81)|Class(168)|Companion(22)|Feeble(28)|Form(976)|Indignity(2)|Inferior(37)|Long(778)|Man(2252)|Permit(61)|Rule(307)|Sovereignty(6)|Suffer(43)|Woman(160) Great spirits have always found violent opposition from mediocrities...
(导读 领研网)发声的关键在于喉部肌肉的精准控制与呼吸之间的协调。本研究确认成年小鼠疑核后核(RAmVOC)中的兴奋型发声特异性喉前运动神经元,是驱动声带闭合、诱导小鼠超声波发声(USV)的必要且充分条件。RAmVOC激活的持续时长决定USV音节和呼气周期,RAmVOC神经元接收来...