大屏幕彩电中的I^2C总线技术

本文阐述I^2C总线在大屏幕彩电中设置的必要性及对大屏幕彩电的控制原理,并从实践中说明了I^2C总线在大屏幕彩电中的应用。     

使油井产能最高的射孔参数优选

本文介绍了射孔完井电模拟及有限元数学模型研究的结果.分析了孔深、孔密、布孔相位角等射孔参数对油井产能的影响,以及影响射孔井产能的诸因素相时重要性排列顺序.介绍了以计算较件、回归方程、诺模图三仲形式表达的射孔井产能与诸影响因素的定量关系.最后给出了华北油田应用优选射孔参数的生产效果.     

Repertoires: A post-Kuhnian perspective on scientific change and collaborative research

We propose a framework to describe, analyze, and explain the conditions under which scientific communities organize themselves to do research, particularly within large-scale, multidisciplinary projects. The framework centers on the notion of a research repertoire, which encompasses well-aligned assemblages of the skills, behaviors, and material, social, and epistemic components that a group may use to practice certain kinds of science, and whose enactment affects the methods and results of research. This account provides an alternative to the idea of Kuhnian paradigms for understanding scientific change in the following ways: (1) it does not frame change as primarily generated and shaped by theoretical developments, but rather takes account of administrative, material, technological, and institutional innovations that contribute to change and explicitly questions whether and how such innovations accompany, underpin, and/or undercut theoretical shifts; (2) it thus allows for tracking of the organization, continuity, and coherence in research practices which Kuhn characterized as ‘normal science’ without relying on the occurrence of paradigmatic shifts and revolutions to be able to identify relevant components; and (3) it requires particular attention be paid to the performative aspects of science, whose study Kuhn pioneered but which he did not extensively conceptualize. We provide a detailed characterization of repertoires and discuss their relationship with communities, disciplines, and other forms of collaborative activities within science, building on an analysis of historical episodes and contemporary developments in the life sciences, as well as cases drawn from social and historical studies of physics, psychology, and medicine.     

Big data and prediction: Four case studies

Has the rise of data-intensive science, or ‘big data’, revolutionized our ability to predict? Does it imply a new priority for prediction over causal understanding, and a diminished role for theory and human experts? I examine four important cases where prediction is desirable: political elections, the weather, GDP, and the results of interventions suggested by economic experiments. These cases suggest caution. Although big data methods are indeed very useful sometimes, in this paper's cases they improve predictions either limitedly or not at all, and their prospects of doing so in the future are limited too.     

微生物电池技术研究

微生物燃料电池具有原料广泛、反应条件温和、清洁高效等优点。简述了MFC的原理、分类,对微生物燃料电池（MFC）产电影响因素进行了阐述,分析了MFC技术的用途,最后归纳了MFC技术的研究发展方向。     

论《大浴女》的历史叙事

铁凝在长篇小说《大浴女》中采用灵活多变的叙述视角,对文革历史进行独特的书写,对女性的生存状态与情感历程进行理性描绘,试图从历史发展和文化传统的角度阐释女性的历史命运,从而使小说呈现出独特的历史叙事风格。     

高功率矩形微波反应器加载圆柱形负载的仿真优化

利用高频电磁仿真软件HFSS 13对加载圆柱形负载的高功率矩形微波反应器进行建模仿真,计算馈口夹角及距离、负载材料、尺寸及位置对微波反应器加热效率的影响,获得各设计参数与反射功率之间的关系,分析得出优化高功率矩形微波反应器加热效率的普适结论.基于优化结论,选取各优化参数重新进行建模仿真.仿真结果显示,加热负载为粉煤灰和玻璃时微波吸收效率最高分别可达98.5%和95.3%.     

宇宙的产生与构成

三维空间是从零空间中诞生的，物质和空间是由“光”转变来的，时钟是空间的产物。宇宙中有三种物理机制。     

圆筒形污泥桨搅拌叶干燥机设计与研究

圆筒形污泥搅拌桨叶干燥机是一种使物料（有机、无机的颗粒或粉状物料）直接与旋转的空心楔型加热件接触进行热传递的干燥机。它不需要空气作为加热介质，所用的空气仅仅是一种载体，目的是把蒸发出的蒸汽带走。本文对该型污泥干燥机进行了改进型设计，使其结构更加完善．效率更高。     

《汉语大词典》未录词语释证（二）

唐代古文家欧阳詹在散文创作中追求语言的新变和古雅，复活或创造了不少历史词或新词。《汉语大词典》收录了十余条源自其作品的词语。但是，仍有不少词语，辞书尚未收录注释，这对于唐代散文研究和语言研究都是不利的。文章择取“儒里”、“港洞”、“闲丽”、“物义”、“山节”、“秘邃”“奔崖”、“六阴”、“浮泉”、“掺执”、“白移”等词语，利用传统训诂手段加以解释，既有助于对文本的研究，亦可补大型语文辞书之阙。