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Search Results: 1 - 10 of 252183 matches for " 李智瑾 "
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谷物中玉米赤霉烯酮检测方法的研究进展
Research Progress on the Determination Methods of Zearalenone in Grain
 [PDF]

包懿,
Advances in Analytical Chemistry (AAC) , 2016, DOI: 10.12677/AAC.2016.61002
Abstract:
玉米赤霉烯酮是镰刀霉毒素的代表,广泛存在于霉变的玉米、高粱、小麦、燕麦、大麦等谷物及其制品中。玉米赤霉烯酮污染食品和饲料后,将会带来严重的食品安全问题,威胁人类健康。近年来发展了很多分析检测玉米赤霉烯酮的方法,主要有薄层色谱法、(超)高效液相色谱法、高效液相色谱–质谱联用法、气相色谱法、毛细管电泳法、酶联免疫吸附测定法、胶体金免疫层析法和时间分辨荧光免疫分析法。本文概述了这些检测方法的特点及应用,并分析了现有检测方法存在的问题和挑战。
Zearalenone is the representative of fusarium, which widely presents in moldy corn, sorghum, wheat, oats, barley and their products. The food and feed contaminated by zearalenone will lead to serious food security issues and threat to human health. In recent years, several determination methods of zearalenone have been developed, mainly including thin layer chromatography, (ultra) high performance liquid chromatography, high performance liquid chromatography—coupled with mass spectrometry, gas chromatography, capillary electrophoresis, enzymatic linked immu-nosorbent assay, colloidal gold immune chromatography and time-resolved fluorescence immu-noassay. This article outlines the features and applications of these determination methods, and analyzes the problems and challenges of the existing determination methods of zearalenone.
食品和中药材中氨基甲酸酯类农药残留的检测方法进展
Progress on the Determination Methods of Carbamate Pesticides Residue in Food and Traditional Chinese Medicinal Materials
 [PDF]

包懿, 刘斌,
Advances in Analytical Chemistry (AAC) , 2016, DOI: 10.12677/AAC.2016.63010
Abstract:
氨基甲酸酯类农药,是目前我国农业领域广泛使用的一类具有良好杀虫效果的广谱性农药,虽不是剧毒化合物,但通过食品或者中药超限量摄入也会威胁人体健康。近年来发展了一系列检测氨基甲酸酯类农药残留的方法,包括气相色谱法、气相色谱–质谱联用法、高效液相色谱法、高效液相色谱–质谱联用法、高效液相色谱–柱后衍生–荧光检测法和生物传感器法等。本文概述了近年来食品和中药材中氨基甲酸酯类农药残留的检测方法,总结了各个方法的特点,并分析了氨基甲酸酯类农药残留检测方法的发展趋势。
Carbamate pesticides with good insecticidal effect have been widely used in Chinese agriculture. Although carbamate pesticides are not highly toxic compounds, the ultra-limited ingestion through food or traditional Chinese medicine will also threaten human health. In recent years, several de-termination methods of carbamates pesticides have been developed, mainly including gas chro- matography, gas chromatography-coupled with mass spectrometry, high performance liquid chromatography, high performance liquid chromatography-coupled with mass spectrometry, high performance liquid chromatography with post-column derivatization and fluorescence detection, biosensors, and so on. This paper summarizes the features of these determination methods, and analyzes the development trend of determination methods of carbamate pesticides.
不同发泡剂对AA/AM/AMPS三元共聚高吸水树脂性能的影响
,,王志国,
- , 2016, DOI: 10.11951/j.issn.1005-0299.20160208
Abstract: 以丙烯酸(AA)、丙烯酰胺(AM)和2-丙烯酰胺-2-甲基丙磺酸(AMPS)为单体,过硫酸铵(APS)为引发剂,N,N′-亚甲基双丙烯酰胺(NMBA)为交联剂,Span-60作为分散剂,环己烷作为分散介质与传热介质,分别以NaHCO3、甲醇与乙醇的混合液以及丙酮为发泡剂,采用反相悬浮聚合法制备了AA/AM/AMPS三元共聚多孔型高吸水性树脂,探讨了不同孔结构对树脂的吸水性能、耐盐性能及保水性能的影响.实验结果表明:聚合物内部具有多孔结构;甲醇乙醇加入量为18 mL时吸液性能最好,吸水率为1 700 g/g,吸盐水率为138 g/g;以丙酮为发泡剂的吸水树脂的保水性能最好.树脂的吸液性能与保水性能受树脂形成的孔洞影响,同时与外部联通的孔洞易形成类似于植物的“气孔蒸腾”作用,不利于树脂的保水性能.
Porous super-absorbent resin with AA/AM/AMPS trepolymer structure was synthesized by inverse-suspension polymerization with acrylic acid (AA), acrylamide (AM) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) as comonomer, ammonium persulfate (APS) as initiator, N,N′-methylenebisacrylamide (NMBA) as cross-linker and Span-60 as dispersant, NaHCO3 or the mixed solution of methanol and ethanol, or acetone as blowing agent. The effect of the pore structure on the water absorption, salt resistance and water retention property of the resin was investigated. The results shows that the copolymer possesses a porous structure, and the product shows the best water absorbency of 1 700 g/g and the 0.9% NaCl solution absorbency of 138 g/g when 18 mL methanol and ethanol was used. The resin using acetone as blowing agent has a best water retention property. The solution absorption performance and water retention properties of the resin are affected by the holes within the resin, and the holes is not beneficial to the water retention due to the opening porous structure resulting in the so-called stomatal transpiration as the plant.
母公司与子公司或联营公司的内部销售调整抵销

财会月刊 , 2013,
Abstract: 笔者将母公司与子公司、母公司与联营或合营公司发生的内部销售调整抵销处理分为编制合并报表前和编制报表时,针对不同投资对象的内部销售处理进行了比较、分析,从调整目的出发,以现行会计准则为基础,归纳调整抵销的理论依据,明确其调整性质、调整方法以及分录,清晰地梳理了目前争议较大的内部销售调整与抵销处理的脉络。【关键词】内部销售子公司联营或合营公司调整处理抵销处理若母公司拥有两个不同性质的投资对象——子公司和联营或合营公司,其中与子公司发生的投资相关事项,在日常核算时应采用成本法,年末编制合并报表时调整为权益法;对其联营或合营公司发生的投资交易和后续事项均应直接采用权益法核算。对于这种有编制合并报表要求的母公司,年末需要针对与子公司和联营或合营公司发生的内部销售做出不同的调整抵销分录。一、母公司与子公司发生的内部销售的抵销分析例1:甲公司以普通股对价发行取得A公司60%的股份,能够对A公司实施控制;以现金投资取得B公司45%的股份,能够对B公司财务和生产经营决策施加重大影响。甲公司向A公司销售产品一批,产品成本160万元,销售价格200万元。该产品经过近1年的销售,甲公司对集团外销售了90%,至年末还有10%尚未销售。假设A公司当年实现净利润500万元,两公司未发生其他内部销售,并且会计政策相同、投资日A公司公允价值与账面价值不存在差异。
固定资产进项税抵扣处理问题与改进建议

财会月刊 , 2010,
Abstract:   固定资产进项税抵扣的一般要求是:自2009年1月1日起,增值税一般纳税人购进(包括接受捐赠、实物投资)或者自制固定资产发生的进项税额,凭增值税专用发票、海关进口增值税专用缴款书和运输费用结算单据等增值税扣税凭证从销项税额中抵扣。很多企业为了搭上“抵扣班车”,调整了固定资产投资计划和预算,针对增值税转型政策,特别进行了纳税筹划。但是也有不少企业由于对相关政策的误读,没有享受到“抵扣”的实惠,反而影响了原有的发展战略,错过了企业发展的良机。笔者针对固定资产核算中增值税处理的常见问题,进一步阐释固定资产增值税抵征办法,明确固定资产进项税抵征范围和账务处理方法。  一、固定资产进项税抵扣的常见问题  1.关于“纳税人”的理解误区。允许抵扣固定资产进项税的纳税人,是指由税务机关核定的增值税一般纳税人,不包括增值税小规模纳税人和非增值税纳税人。从事《营业税暂行条例》规定劳务的企业,比如交通运输、建筑、金融保险、邮电通信、文化体育、娱乐服务等营业税纳税人购进的设备等固定资产,其进项税不允许抵扣。
蚕蛹替代鱼粉对吉富罗非鱼生长性能、体成分及血清生化指标的影响
王淑雯,黄先,罗莉,陈拥军,白富,
动物营养学报 , 2015, DOI: 10.3969/j.issn.1006-267x.2015.09.015
Abstract: 本试验旨在探讨蚕蛹替代不同比例鱼粉对吉富罗非鱼生长性能、体成分、血清生化指标的影响。试验以含8%鱼粉的饲料为基础饲料,分别用蚕蛹替代基础饲料中0(对照)、25%、50%、75%、100%的鱼粉,配制5种等氮(含粗蛋白质32.0%)等脂(含粗脂肪5.5%)的试验饲料(分别命名为SP0、SP25、SP50、SP75、SP100),饲喂初始均重为(44.4±0.41)g吉富罗非鱼幼鱼56d。每种饲料设3个重复,每个重复饲喂20尾鱼。结果表明:1)SP50组的增重率、特定生长率较SP0组分别上升16.18%、8.37%(P<0.05),饲料系数降低3.94%(P<0.05);各组内脏指数无显著差异(P>0.05)。2)SP50组的全鱼和肝胰脏粗脂肪含量较SP0组分别降低6.39%和7.76%(P<0.05),全鱼粗蛋白质和肝胰脏水分含量不受蚕蛹替代比例的显著影响(P>0.05)。3)随蚕蛹替代比例的增加,蛋白质效率、蛋白质沉积率均先上升后下降,在SP50组达到最大值,较SP0组分别上升6.48%、13.83%(P<0.05);脂肪沉积率与蛋白质效率、蛋白质沉积率变化趋势相反。4)蚕蛹替代鱼粉后显著降低了吉富罗非鱼血清总胆固醇、甘油三酯、葡萄糖含量(P<0.05);蚕蛹替代比例为50%时,血清溶菌酶活性最高,但替代比例超过75%时,血清溶菌酶活性显著下降(P<0.05),血清谷草转氨酶、谷丙转氨酶活性均显著上升(P<0.05)。由此得出,蚕蛹替代50%鱼粉可提高吉富罗非鱼的生长性能,促进鱼体蛋白质沉积,提高血清溶菌酶活性,同时还具有降血脂、血糖、肝脂的作用。
病毒相关性慢性阻塞性肺疾病急性加重与血清干扰素γ和白介素8的相关性研究
帅维正,李琦,,罗莉,陈华萍,魏征华,,熊恩平
解放军医学杂志 , 2010,
Abstract: 目的?了解血清干扰素γ(IFN-γ)和白介素8(IL-8)与病毒相关性慢性阻塞性肺疾病急性加重(AECOPD)的关系。方法????纳入AECOPD患者66例,根据咽拭子标本的病毒抗原免疫荧光检测结果,将患者分为病毒感染组(n=21)和非病毒感染组(n=?45),另取20例健康体检者作为对照组。收集66例患者入院24h内的临床资料(临床症状、吸烟史、是否接受机械通气治疗、机械通气时间、ICU住院时间、痰培养结果),并采用ELISA法对三组血清IFN-γ和IL-8水平进行检测。结果??病毒感染组ICU住院时间较?非病毒感染组长(P<0.05),但其细菌、真菌检出率,接受机械通气的患者例数及机械通气时间,吸烟史以及临床症状与非病毒感染组比较均无统计学差异。血清IFN-γ水平在病毒感染组、非病毒感染组和对照组间无统计学差异,而血清IL-8水平在病毒感染组最高?(P<0.05),非病毒感染组次之,对照组最低。结论??血清IL-8水平与病毒相关性AECOPD相关,可作为炎症反应进一步失调的证据之一,反映AECOPD病情严重度。
苯甲酸氯代衍生物稀土配合物的荧光表征
,张珂,徐怡庄,陶栋梁,,高宏成,
物理化学学报 , 2002,
Abstract:
成果导向式学习——信息管理专业课程规划新思维
Outcome-Based Education—A Novel Thinking on Course Design for Information Management Discipline
 [PDF]


Advances in Education (AE) , 2013, DOI: 10.12677/AE.2013.31001
Abstract:

多年来实务界对大学信息管理系毕业生之专业能力与企业所需有相当落差,造成企业聘用时无法鉴别毕业生专业能力是否与职缺相符;录用后仍须投资相当训练时间与成本,使新进人员具备与职务所需之专业能力。何以大学信息管理系教育成果与实务界期待造成落差?本研究目的在于探讨台湾目前大学信息管理系之课程规划,是否能与政府促进就业计划相衔接,是否能满足就业市场职缺所需,是否能与信息技术管理趋势接轨等三大面向。同时衡量与“成果式学习”教育理念——确保学生成果透过多样评鉴验证学习活动与教育目标相扣合——之差距,提出具体建议,期许大学信息管理系为提升学生核心竞争力,降低企业再训练成本,发挥大学特色,形成学生、大学,与企业三赢局面,进而减轻因企业全球化策略所致,对台湾信息人才竞争之冲击。
Information Management (IM) plays a key role to success in today’s organization business. However, there has been a considerable skillsets gap for years between the practitioners’ expectation and the students graduated from the IM department of universities. The employers are having issues in identifying the skillsets of these graduated students can meet the job requirements or not, and invest significant costs and time in training for the job afterwards. This paper proposes that the course map of IM discipline dynamically responds to the needs for the job market and follows the modern information technology trend by implementing the Outcome-based Education. Consequently, it will be a triple-win situation: 1) helps the graduated students to find better jobs; 2) the IM departments of universities are esteemed for the success of education; and 3) the employers are able to deploy the new workforce on the job posts sooner. Such a situation will also alleviate the competition of human resource for Taiwan enterprises under globalization environment.

建立公民服务导向式数字学习平台——电子化政府转型
Towards a Public Service Oriented e-Learning Platform——e-Government Transformation
 [PDF]


Modern Management (MM) , 2012, DOI: 10.12677/MM.2012.24025
Abstract: 台湾主要公务员数字学习平台大多是能力培养导向;能力培养导向式学习有以下缺点:1) 对于公务员提供公民服务所需之能力,没有直接帮助;2) 学习目标与教材之设定是单向,由上而下方式;及3) 缺乏与公民沟通他们所关切之服务,需要具备何种能力与知识。本文主张数字学习平台应为双向与面向公民服务,使得学习目标融入于公务员日常服务之中,藉由工作中积累知识并反馈至数字学习平台与更多公务员分享。此种双向与面向公民服务式学习平台,触发政府自功能性组织转型为服务导向,进而提升公民服务绩效与政府竞争力。
Most Taiwan government owned e-Learning platforms for public servants are silo skillset building oriented. There are several major drawbacks of this are: 1) indirect help for daily job performing; 2) one-way, top-down training objective and material settings; and 3) less communication with the citizens about the concerned public services required skillsets and the knowledge. This paper argues that the e-learning platform should be two-way, service perspectives for public servants, so that the learning objectives are embedded in their daily services to the public, enhance and update the learning material by accumulating the service required knowledge from the experiences, and feedback these knowledge into the e-learning platform. Such an e-learning platform will trigger the government transformation from functional settings to service oriented organization. Consequently, it will enhance the public service efficiency and improve the competitiveness of the government.
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