Analysis on Effects of Constructions Building nearby the River Bank or across the River on Navigation Conditions

In this paper, the effects of construction nearby the river or across the river are analyzed on navigation conditions, such as navigation scales, navigation flow conditions, navigation way, navigation method and navigation aids. Some safety measures during its construction are presented.     

去苞叶对玉米子粒脱水过程的影响

为明确苞叶层数对玉米子粒脱水过程的影响,2015-2016年以郑单958和先玉335为试验材料,设置乳熟期（授粉后25~26d）不同程度去苞叶处理,分析苞叶层数对子粒含水率的影响。结果显示：（1）去除1层、2层和3层苞叶后,子粒含水率与同一时期不去苞叶对照差异不显著;去除4~6层苞叶后,子粒脱水过程受到不同程度的影响;去除全部苞叶后,子粒含水率在测定期间始终显著低于对照处理,2个品种表现一致。（2）去除全部苞叶后,郑单958和先玉335百粒干重显著下降,降幅为9.77%~13.29%和15.40%~16.37%,而其他去苞叶处理的百粒干重与对照无显著差异。     

北疆玉米大田机械粒收质量调查

北疆是我国玉米机械粒收率最高的区域,为了解北疆玉米大田粒收质量现状,2012-2017年在新疆奇台总场、伊犁新源71团、伊宁县和温泉县等地农户田块调查了机械粒收质量,共获得269组样本,结果表明：（1）子粒破碎率均值为6.38%,高于5%的国家标准[玉米收获机械技术条件（GB/T 21961-2008）]要求;杂质率和产量损失率均值分别为0.41%和0.96%,分别低于3%和5%的国家标准要求,子粒破碎率高是当前北疆玉米大田机械粒收存在的主要质量问题。（2）收获玉米子粒含水率均值为23.3%,其与破碎率呈显著相关,可用二次函数y=0.0263x ²-1.0433x+15.867（R ²=0.108,n=269）拟合。（3）在子粒含水率相同条件下,不同品种之间子粒破碎率表现出明显差异,其中,新引M751子粒破碎率明显低于KWS2564,而KX3564介于两者之间。（4）筛选早熟、脱水快、耐破碎品种,实施玉米密植高产全程机械化绿色生产,可以有效改善机械粒收质量,实现玉米高产高效协同。     

溶解性有机质对土壤重金属活性影响的研究概况

土壤溶解性有机质（Dissolved Organic Matter）是土壤溶液的一个重要的组成部分,在土壤的化学和生物过程中起着很重要的作用。在过去的二十多年里,就DOM的组成和其在土壤中的作用已经得到很大程度的重视且取得了相当大的进步。DOM可能会对重金属有很显著的控制作用,而重金属也可能对DOM有种特殊且强烈的亲和性,这种亲和性在很大程度上影响着土壤中重金属的活性和环境生态,而且不同来源和不同提取方法提取的DOM在功能上有着差异。本文系统评述了DOM的来源、结构、生态功能以及对重金属活性的影响,同时介绍了一些未来有待解决的问题。     

温度对紫色辣椒新品系YN 99007萌发及某些生理指标的影响

用6种温度(40、35、30、25、20、15℃)处理紫色辣椒新品系YN 99007进行发芽试验(以日本天鹰椒作为对照),研究各温度下的发芽率、发芽势、发芽指数、芽长、脯氨酸(Pro)含量、丙二醛(MDA)含量及质膜透性(PMP)等指标.结果表明:紫色辣椒YN 99007的发芽适宜温度范围为20～35℃,40℃和15℃下发芽优于对照品种;抗逆温生理特性亦优于对照品种.     

上海旅游农业的开发建设与发展对策

根据系统设计的指导思想,分析了旅游农业具有的农业特性、生态特性和娱乐特性等基本特性,阐述了发展旅游农业的作用,提出了上海发展旅游农业的对策：①树立新观念,拓宽旅游农业的功能;②把旅游农业置于都市旅游系统与都市农业发展整体规划之中;③立足本地资源,因地制宜,扬长避短,突出特色;④旅游农业自身的设计必须强调独创性开发。     

珍稀树种伞花木组织培养技术研究

以伞花木下胚轴、子叶、腋芽和花柄作为外植体,采用MS作为基本培养基与不同种类、不同浓度的激素组合进行组织培养.结果表明,下胚轴、子叶和花柄愈伤组织诱导的最佳培养基分别为MS 6-BA1.0 NAA0.1、1/2 MS 6-BA2.0 IBA0.1和MS 6-BA10.0 IAA0.5;芽分化和增殖的理想培养基分别为1/2MS 6-BA1.0 NAA0.1、1/2MS 6-BA1.0 IBA0.1和MS 6-BA10.0 IAA0.5.以腋芽为外植体芽分化的理想培养基为1/2MS 6-BA1.0 IAA0.1.伞花木组培苗生根的理想培养基为1/2MS IBA2.0 BA0.2,生根率达80%以上.以泥炭和珍珠岩(2:1)混合作移栽基质,采用两步移栽法取得了较好的移栽效果,移栽成活率达90%.     

The Dynamic Change of Soil Microorganism and Enzyme Activity in the Whole Procreative Process of the Tarim Island Cotton

对塔里木海岛棉生育全程土壤微生物与酶活性的动态变化进行了检测,测试结果表明：（1）塔河种业高产海岛棉田土壤养分比塔河滩地高出6.58%~37.42%,特别是全钾、速效钾比塔河滩地高出29.02%~37.42%。（2）微生物数量变化呈现如下变化趋势：细菌类群在夏季有生长高峰,秋季略有回升;真菌在春季存在生长高峰,夏季处于低谷,秋季生物活性开始回升;放线菌生长高峰位于夏季,春秋季处于低谷。在土壤微生物区系构成中,细菌占据绝对优势,暗示土壤养分的转化主要靠细菌完成。（3）塔河种业高产海岛棉田土壤酶中的过氧化氢酶、     

Cross‐border ‘Traffic’: Stories of dangerous victims,pure whores and HIV/AIDS in the experiences of mainland female sex workers in Hong Kong

Abstract: In recent years, dramatically increasing numbers of mainland Chinese women have entered Hong Kong to engage in sexual labour. Public discourses on the threat of HIV/AIDS increasingly locate these women's bodies as sites of danger, colluding with pre‐existing imaginations of mainland rural women as ignorant, desperate and deceptive in representing these women's penetration of Hong Kong's border as a primary means of infection of the Hong Kong body. Drawing on state, media and popular representations, and the narratives of female sex workers themselves, this paper examines the interwoven bio‐medical, gendered, sexual and cross‐border relationships that intersect in the experiences of mainland Chinese sex workers in Hong Kong. I argue that while images of disease and danger have been used to regulate these women's bodies, mainland female sex workers challenge these images by drawing on other popular stereotypes of mainland women as pure, feminine and traditional. Although images of the related but still ‘other’ figure of the mainland Chinese woman are powerful mechanisms for the regulation of these women's bodies, mainland female sex workers skilfully use inherent tensions in those images in resisting that control and in struggling to achieve their own personal and economic goals.     

Design of Analysis and Evaluation Application System for Ride Comfort

The stimulation and the optimal design for bus ride comfort have played an importable roles in design and reform of automobile products. The new vibration comfort coefficient is applied to evaluate the ride comfort of automobile, and the software is developed. It is verified that the study has theoretical and practical value significantly.