黑白棋子游戏的推广

本文把黑白两色棋子游戏推广到三色和四色,得出了两个定理和一些有趣的结论     

黑色硫化汞在氢卤酸中溶解性的探讨

硫化汞有红色和黑色两种。实验结果表明黑色硫化汞能溶于热浓盐酸、氢溴酸和氢碘酸中，并与其反应放出硫化氢气体。     

ACADEMIC LEADERSHIPS VIEWS OF SCHOOL PSYCHOLOGY AND BLACK STUDENTS: THE CASE OF HISTORICALLY BLACK COLLEGES AND UNIVERSITIES

The purpose of this study was to understand academic leadership's views of the field of school psychology. This is the first study that has attempted to incorporate the views of historically Black college and university (HBCU) Psychology Department Chairs' regarding the field of school psychology and the potential development of school psychology programs at HBCUs. The results indicated that Department Chairs at HBCUs are not recommending the field of school psychology to their students based on a variety of reasons related to their views of the field (e.g., lack of focus on Black research issues). Despite the shortage of school psychologists and ample career opportunities, Department chairs in our sample do not recommend the field of school psychology as a first option graduate school choice. Implications are discussed in terms of increasing the number of African Americans in the field of school psychology.     

辐射场包围Schwarzschild黑洞的稳态球对称度规

由于黑洞具有Hawking辐射,它对时空必有影响（所谓反作用）。本文结合用热力学方法研究黑洞反作用问题所得结果,应用求解考虑辐射场存在时的半经典受因斯坦场方程,得出由辐射场包围Schwarzschild黑洞的稳态球对称度规。由此度规度的到黑洞的辐射能量密度与径向压强的关系同平直时空的关系一致。     

吸附—催化氧化法处理造纸黑液

本文研究了以活性炭为吸附剂和催化剂,空气为氧化剂,吸附催化氧化处理造纸废水中有机污染物的可能性。并对反应温度,反应时间及PH值等影响废水处理效率的因素进行了探讨。在活性炭用量一定、温度稍高,PH值较低等条件下,该法COD去除率达89％以上,同时还进行了静态吸附对照试验。     

BLACK POWER AND BLACK STUDENTS IN KANSAS CITY

In this research I examined the enactment of liberatory pedagogy, a teaching practice that promotes equity for all learners, from the uniquely informative perspective of young women majoring in mathematics and elementary education. It is grounded theory that seeks to understand the role of personal identity and social location in learning and teaching. I collected data over a two-year period, following two young women from the final semester of their teacher education program to their first teaching positions. Three distinct influences inform the conceptual framework of this study: (a) the underrepresentation of women in mathematics; (b) the devaluing of elementary teachers' content and pedagogical knowledge; and (c) the marginalization of the education major and pedagogical knowledge. I ask research questions regarding the type of preservice education these women experience and how it informs their enactment of liberatory pedagogy. Themes among the findings include coping with being a stranger in both lands, the desire to know oneself as a learner, and enacting liberatory pedagogy as beginning inservice teachers.     

彩色电视机黑白平衡调整电路的改进

本文介绍了彩色电视机黑白平衡调整的原理，对最常见电路及其存在的问题，给出了改进彩色电视机黑白平衡调整的基本方法及改进的电路     

一黑值千金

黑盘白盘之争，是表友圈里经常探讨议论的话题。选定品牌、款式之后，同款表黑白两款，最终应该选择哪种颜色的盘面往往让人“抓破头皮”。有人喜欢白盘，有人喜欢黑盘，但我也见过很多朋友在选表时举棋不定。像黑白两只探二摆在面前，让我选上一只，我也会犹豫不决。但在拍卖和表友交易中，黑盘的表往往更引人注目，在一些情况下，价钱也会比同款白盘高上一些，下面我们就看一看黑盘（黑壳）为何能更胜一筹。     

加速带电黑洞的热效应(续)

该文讨论了变加速直线运动带电黑洞的霍金效应 ,给出了事件视界和相应的温度分析了一些特别有趣的情况 .发现带电黑洞的霍金温度不仅依赖于时间 ,而且依赖于极角 .当黑洞内外视界接触时 ,霍金温度为零 .在某种条件下 ,黑洞视界与 Rindler视界温度相等 .零温黑洞与 Rindler视界接触时 ,霍金温度为零