中国与欧美木工机械通用安全标准差异分析

对我国木工机械安全标准与目前欧美最新相关安全通用标准进行比较分析，找出我国标准GB 12557-2010与EN 691-1：2012、ANSI O1.1-2009之间存在的差异与不足，为应对国际间贸易技术壁垒，提升我国木工机械行业国际竞争力提供参考。     

The Necessity of Establishing the Mechanism of RegulationStandards on Construction Engineering Quality

On the basis of quaility accident cases in engineering, this paper presents the necessity of establishing the mechanism of regulation standards on engineering quaility for whole construction work. This paper compares the technology standards with regulation standards on engineering quaility, puts forward the idea of regulation standards on engineering quaility for whole construction, analyses and studies the procedure norm, accounting system, management mechanism,auditing supervision and risk forecasting technique on engineering quaility in entity related with whole construction, under consideration with the reality of interaction relationship on engineering quaility and engineering financing in our county, finally ,explores and illustrates the positive appoarch which is used for establishing the mechanism of regulation standards on construction engineering quaility.     

影响我校女生800米跑成绩因素的灰色关联分析

本文应用灰色理论和方法 ,以山西农大 1 984～ 1 997年历届女生 80 0m跑成绩较优者的身体形态 ,机能和素质为数据数列 ,分析影响我校女生 80 0m跑成绩的因素 ,为教学和训练提供依据。     

避风型渔港避风因素浅析

我国的东南沿海是最容易遭受热带气旋影响的脆弱地带,每年的5-11月,都会遭受热带气旋的影响,对渔港、渔船和渔民构成严重威胁.而渔港的避风能力是渔民最为关心的问题,通过近几年登陆我国的强台风等级以上的热带气旋对渔港、渔船及渔民造成损失的实例分析,从防波堤设计标准、避风锚地的底质、锚泊方式等3个方面对避风型渔港的避风因素展开讨论,得到了有价值的结论,为渔港、渔船和渔民减少灾害,为政府建设避风型渔港决策提供科学依据.     

高标准农田建设的冷思考

高标准农田建设是发展现代农业、从根本上提高粮食生产保障水平的重大前举措。各地在政策配套、资金保障、体制运行上已经进行了深入的研究和推进,已然产生了一批丰硕的成果和丰富的实践经验。但就农业综合开发而言,在思想观念、建设模式、推进机制上均未完全作出适应性调整。对此,我们应保持高度的警醒,及早作出谋划,制定出适应高标准农田建设内在规律的方案和模式并加以推进,才能确保其建设过程的科学和顺畅．也才能防止在造势上轰轰烈烈,在实际成效上却与中低产田改造并无二致的局面出现。     

离子色谱法测定酒石酸沃尼妙林中酒石酸的含量

目标：建立离子色谱-抑制电导检测法测定化学对照品中酒石酸盐的含量。方法：以酒石酸沃尼妙林对照品为例,采用DIONEX IonPac AS19(250 mm×4 mm)阴离子交换色谱柱和Ion Pac AS19保护柱(50 mm×4.0 mm),以22 mmol.L_-1^{氢氧化钾溶液为}流动相,流速为1.0 mL.min_-¹等度洗脱,抑制电导检测器检测,测定酒石酸盐中酒石酸的含量。结果：该方法在1.0~50 μg.mL_-1^{浓度范围内线性关系良好(}r=0.999),定量限为0.5μg.mL_-1^,酒石酸沃尼妙林在3个水平的加样回收率分别为98.79%、98.91%与96.50%,平均回收率为98.07% (RSD=2.20%,n=9)。用此方法测定3个厂家共5批样品,酒石酸沃尼妙林中酒石酸含量的数值与理论值基本一致。结论：本文建立的离子色谱法准确、灵敏,可用于酒石酸盐成盐比例与含量的测定。     

采用OIE标准检测养殖对虾中传染性皮下及造血组织坏死病毒(IHHNV)的PCR检出类型

利用世界动物卫生组织(OIE)推荐的4对引物(389F/R、392F/R、77012F/77353R 和309F/R),通过普通 PCR 方法,对本实验室2011?2012年采集于国内不同地区的对虾样品进行 IHHNV(Infectious hypodermal and hematopoietic necrosis virus)检测,并对国内存在的 IHHNV 检出类型进行初步分析。检测结果显示,在凡纳滨对虾、斑节对虾、中国对虾、宽沟对虾中均检测出了 IHHNV,而在脊尾白对虾中未检出。其中凡纳滨对虾阳性率最高,中国对虾阳性检测率最低。对虾样品2011年阳性率高于2012年,华东地区高于华北、华南两地。此外,根据4对引物的检测结果,得到国内 IHHNV 的4种 PCR 检出类型。     

Overview on current criteria for heavy metals and its hint for the revision of soil environmental quality standards in China

Following rapid social and economic development over the past several decades, soil pollution by heavy metals (HMs) has been both serious and widespread in China. The Soil Environmental Quality Standards (SEQSs) in China (GB 15618-1995) have been introduced to encourage and enforce sustainable soil HM management. However, in recent years, HM contents in soils have frequently been found to exceed their associated standard values, while the crops growing on them might still meet regulatory standards, and vice versa. There is thus growing awareness that GB 15618-1995 does not effectively regulate current soil HM pollution, as it has encountered bottlenecks, and disappointing outcomes caused by poor execution along with deficiencies and gaps in the policies. However, due to the deficiency of scientific research about relationships between soil HM concentrations and their ecological or human health effects, the development of SEQSs in China is still greatly restricted. This paper discusses international SEQSs of HMs as well their development in China over time, then examines current Chinese SEQSs to demonstrate their potential regulatory deficiencies by referring to international SEQSs. The corresponding legislative policies are described, and scientific information or responses are outlined for maintaining soil environmental quality. China's experience has shown that policy and science can be linked to work in tandem to better understand and manage soil quality issues.     

Design standards for experimental and field studies to evaluate diagnostic accuracy of tests for infectious diseases in aquatic animals

Design and reporting quality of diagnostic accuracy studies (DAS) are important metrics for assessing utility of tests used in animal and human health. Following standards for designing DAS will assist in appropriate test selection for specific testing purposes and minimize the risk of reporting biased sensitivity and specificity estimates. To examine the benefits of recommending standards, design information from published DAS literature was assessed for 10 finfish, seven mollusc, nine crustacean and two amphibian diseases listed in the 2017 OIE Manual of Diagnostic Tests for Aquatic Animals. Of the 56 DAS identified, 41 were based on field testing, eight on experimental challenge studies and seven on both. Also, we adapted human and terrestrial‐animal standards and guidelines for DAS structure for use in aquatic animal diagnostic research. Through this process, we identified and addressed important metrics for consideration at the design phase: study purpose, targeted disease state, selection of appropriate samples and specimens, laboratory analytical methods, statistical methods and data interpretation. These recommended design standards for DAS are presented as a checklist including risk‐of‐failure points and actions to mitigate bias at each critical step. Adherence to standards when designing DAS will also facilitate future systematic review and meta‐analyses of DAS research literature.     

海南黎药海巴戟药材质量标准研究

为建立黎药海巴戟药材质量标准,为其质量控制及资源开发利用提供科学依据。依据《中国药典》2015 年版中药质量标准研制的要求,对药材性状、鉴别、检查、浸出物、含量测定等进行研究。明确了海巴戟药材性状和显微结构特征,并建立了其专属性薄层色谱鉴别方法;规定海巴戟药材多糖含量不得少于 6.0%、东莨菪内酯含量不得低于 0.017%、水分不得超过 10.0%、总灰分不得超过 6.0%以及醇溶性浸出物不得少于 20.0%。本研究制定的黎药海巴戟药材质量标准,可为该药材的质量控制提供依据。