浅论两大法系侵权法上的因果关系的认定

在我国,无论是学术界还是司法实践中,对侵权法上因果关系的认定一直存在较大的争议。通过普通法系近因理论和大陆法系相当因果关系理论兼收并蓄,探究以近因说中可预见性规则为主,以相当因果关系中的可能性（盖然性）规则为辅来认定因果关系。     

化学实验室防潮的重要性及方法

针对某些实验室环境空气湿度大的问题,对高湿度环境给仪器和化学试剂造成的影响以及从整体到局部降低实验室湿度的方法进行讨论。从而达到减少资源的浪费,提高仪器和试剂的利用率,节约实验室运行成本的目的。     

机房环境监控的研究

机房环境监控主要指机房的温度、湿度、供电、烟雾、漏水和门禁等监控。良好的机房环境是网络中心正常、稳定工作的重要保证,对机房环境检测的原理与实践做了分析和研究,并通过机房监控与报警系统的研究实例,从软件和硬件两个方面,讲述了机房环境监控与报警系统的设计方法和关键技术。     

基于图论的粗糙集模型研究及应用

从图论的角度,研究粗糙集模型及决策表相对正域和决策规则.方法：将关系和集合用图表示,通过求图的子图以及两图是否相交来求解集合上、下近似;通过求带权图的子图求取决策表相对正域,以及决策规则.基于图论的粗糙集模型更形象更直观.本文提供了一个研究粗糙集模型的新方法.     

Keeping the Beast at Bay: Fighting Mold at the University of Missouri-Columbia Journalism Library

SUMMARY

This article illustrates the course of action taken by the staff of the University of Missouri Journalism library during a mold outbreak in the Fall Semester 2006. While the parent library system, the University of Missouri-Columbia Libraries had a disaster plan in place, multiple issues occurred that subsequently changed the course of action over the 3 weeks of the cleanup. Those involved took swift action to save a unique journalism collection, and the ultimate results were positive. Consequences of these decisions are discussed. Suggestions for other libraries facing similar circumstances are provided.     

Relative age effect in elite sports: Methodological bias or real discrimination?

Abstract

Sport science researchers refer to a relative age effect when they observe a biased distribution of elite athletes' birth dates, with an over-representation of those born at the beginning of the competitive year and an under-representation of those born at the end. Based on the complete sample of French male licensed soccer players (n=1,831,524), we suggest that there could be an important bias in the statistical test of this effect. This bias could in turn lead to the false conclusion of systemic discrimination in the recruitment of professional players. Our findings question the accuracy of previous research on the existence of this effect in elite soccer.     

Relationships among birth-month distribution,skeletal age and anthropometric characteristics in adolescent elite soccer players

Abstract

The aim of the present study was to clarify relationships among the distribution of birth month, maturation and body size in young soccer players. We therefore examined physical and maturational differences between selected players, who were considered to have higher potential to play soccer at a professional level as decided subjectively by coaches, and unselected players. Participants were 332 elite soccer players (mean age = 12.2 ± 1.5 years; range = 9.1–15.0 years). Participants were divided into six categories (under = U10 to U15), depending on chronological age. Height, body mass skeletal age and maturation difference (skeletal age – chronological age) were compared among four groups (quarter = Q1 to Q4) depending on month of birth. Overall, the distribution of players across the four quarters was skewed such that numbers were greatest in Q1 and smallest in Q4. No significant differences in maturation difference were observed between birth quarters in any age category. On the other hand, except for the U14 age category, there were no significant differences in height between Q4 and Q1 players. However, the height of Q4 players was significantly smaller than those of Q1 in three (U11, U13 and U14, P < 0.01) of six categories when maturation difference was statistically controlled. Our results suggest a clear bias toward quarter of birth and this bias may depend to some extent on differences in individual skeletal age and body size. Individual biological maturation should thus be considered when selecting adolescent soccer players.     

非变频压缩机培养箱温湿度控制算法改进

在压缩机非变频,且有从关闭到开启冷却时间限制的培养箱情景中,传统定点开关结合 PID 的控制算法往往达不到预期的控制精度。针对该情况,在先控温再控湿的策略下,设计一种对压缩机表现进行线性估计的算法。算法在压缩机间断工作时,线性量化上一个升降温周期内的降温斜率和升温斜率,以此估计本周期降温时间及降温点,以满足压缩机冷却时间要求并减小温度振幅,最终实现对温湿度的稳定控制。通过搭建实物进行测试,结果表明,在温度存在采集扰动的情况下,该算法的温度控制偏差相比传统定点控制算法,由 ±1℃缩减到 ±0.5℃ ,湿度控制偏差也达到 ±5%RH 的水平。     

单片机与数字式温湿度传感器SHT11虚拟I2C总线设计

SHT11是瑞士Sensirion公司生产的具有I^2C总线接口的单片全校准数字式相对湿度和温度传感器。该传感器采用独特的CMOSens TM技术,具有数字式输出、免调试、免标定、免外围电路及全互换的特点,但对无I^2C总线接口的单片机却无法与之直接相连。可借助通用I／O口线来虚拟I^2C总线,即采用虚拟I^2C总线协议的编程方法实现与之接口。     

西伯利亚地区主要森林优势树种生物量相对生长模型

西伯利亚地区的主要森林优势树种有欧洲赤松（Pinus sylvestris L.）、西伯利亚落叶松（Larix sibirica Ledeb.）、凯杨德落叶松（Larix cajanderi Maye）、西伯利亚红松（Pinus sibirica Mayr）、西伯利亚云杉（Picea obovata Ldb.）、西伯利亚冷杉（Abies sibirica Ledeb.）、欧洲山杨（Populus tremula L.）、欧洲白桦（Betula pendula Roth）等。利用IIASA和俄罗斯著名学者V.A.Usol’tsev的专著等提供的森林优势树种样地实测数据和生物量实测数据,西伯利亚地区7个森林优势树种的林分平均林木区域尺度上的生物量相对生长模型已成功构建。精度分析结果表明,7个树种的树干（带皮）和地上生物量模型完全满足计算这些树种样地生物量和植被碳储量的需要;除西伯利亚红松外的其它6个树种的树枝、树叶的生物量模型可以用于样地内林木主要营养器官生物量的计算;欧洲赤松、西伯利亚红松、西伯利亚冷杉和欧洲山杨的地下生物量模型也已达到实际应用的精度要求。区域尺度上样本数对生物量模型构建的响应与局地尺度上的响应在有限样本条件下可能略有不同。