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91.
以糖醇为原料,采用顺丁烯二酸酐为催化剂,成功合成了糠醇树脂,对产品的有关性能指标进行了分析,探讨了催化剂用量,反应时间,反应温度对实验和产品性能的影响。 相似文献
92.
异丁醛下游产品的技术开发 总被引:1,自引:0,他引:1
介绍了异丁醛下游产品-异丁醇、新戊二醇、甲基丙烯酸及其甲酯、2,2,4-三甲基-1,3-戊二醇、甲乙酮、丙酮、合成香料等产品的技术开发和应用。为我国大型乙烯联合化工装置副产异丁醛的综合利用提供了参考。 相似文献
93.
94.
《Journal of Foodservice Business Research》2013,16(4):107-123
ABSTRACT Every year in the US, over 20% of all traffic fatalities are caused by drunk drivers. The average Blood Alcohol Concentration (BAC) of fatally injured drivers is 0.17, with almost half of these have a BAC of 0.20 or higher. In October of 2000, a new federal law was passed requiring states to lower the BAC from 0.10 to 0.08 or lose millions in highway funding. Proponents of this legislation feel it will save over 500 lives a year. Those opposed feel this law will target the social drinker, overburden the justice system, and will not address the real problem, the habitual drunk driver. This study looks at these issues concentrating on: other laws that could affect the number of alcohol-related fatalities; the number of fatalities involving habitual offenders; legislative efforts in the state of Indiana; and the effect this legislation could have on the hospitality industry. 相似文献
95.
生产中提高酒精质量的方法有多种,文章主要介绍了碱法提高酒精质量的知识,通过添加碱(NaOH)来改善化学反应,达到提高酒精质量的目的。 相似文献
96.
生产中提高酒精质量的方法有多种,文章主要介绍了碱法提高酒精质量的知识,通过添加碱(NaOH)来改善化学反应,达到提高酒精质量的目的。 相似文献
97.
梁晓霏 《石油化工技术经济》2010,(6)
随着聚氯乙烯(PVC)软制品的强势发展,对增塑剂的需求不断扩大。介绍了邻苯二甲酸类增塑剂的发展新动向,以及相应的增塑剂醇的发展现状、市场前景,比较了这几种常用的增塑剂醇的技术经济情况,对石化企业醚后C_4中2-丁烯的利用提出了建议。 相似文献
98.
采用水提醇沉法提取麦胚多糖,将提取液浓缩至合适体积再加入不同浓度的乙醇,利用多糖不溶于乙醇的特性将其沉淀出来,采用苯酚一硫酸法测定醇析物中多糖含量,并用相关性检验分析了醇析物质量和多糖含量的相关性,皮尔逊相关系数r=-0.884〉rmin=0.468,说明两者之间存在显著的相关性。为了提高麦胚多糖醇析工艺中多糖含量,通过Box—Behnken中心组合设计(CCD)及响应面分析(RSM),以醇析物为响应值建立了预测多糖含量的二次多项数学模型,优化了多糖醇析工艺,为现实生产提供可靠的理论依据。 相似文献
99.
Little is known about how workplace problems may influence diagnosable mental health and substance use (MHSU) disorders. We examine the associations between three common workplace problems (experiencing problems with co-workers, job changes and perceived financial strain) and three MHSU disorders (mood, anxiety and substance abuse/dependence). The analysis utilizes longitudinal data on a sample of working-age adults from the National Epidemiological Survey on Alcohol and Related Conditions. These data are well suited for our research objective as the survey was specifically designed to study MHSU disorders. Results show that experiencing these workplace problems is associated with an increased risk for mental health disorders, but not substance use disorders. Importantly, various robustness checks and sensitivity analyses demonstrate that our findings cannot be not fully explained by omitted variables, reverse causality or sample attrition. 相似文献
100.
This article provides an analysis of the relationship between annual advertising expenditures and sales, using a time series regression procedure, for beer, wine, and liquor sold in the United States from 1971 to 2012. Information from these four decades provides a comprehensive analysis of the relationships of numerous variables with aggregate alcohol category sales. Even though per capita alcohol consumption has not changed much throughout this period, alcohol advertising media expenditures for all alcohol beverages have increased almost 400% since 1971. This study has provided evidence of consumption changes across categories of alcohol beverages over the past 40-plus years with the preponderance of those changes significantly correlated to fluctuations in demography, taxation and income levels – not advertising. Despite other macro-level studies with consistent findings, the perception that advertising increases consumption exists. The findings here indicate that there is either no relationship or a weak one between advertising and aggregate category sales. Therefore, advertising restrictions or bans with the purpose of reducing consumption may not have the desired effect. Implications on policy decisions regarding advertising controls are addressed. 相似文献