油田企业利润的敏感性分析

运用敏感性分析法,对某油田企业利润指标变动情况进行了分析.该法不但可以预测单个或多个因素变动引起的利润变动程度,还可以预测出为了实现既定的利润目标所应采取的单项或综合措施,分析结论可为领导决策提供参考依据.     

Experimental study of suppressing cooking oil fire with water mist using a cone calorimeter

Cooking oil fires in kitchens are difficult to extinguish as they are easy to re-ignite. Such kind of fires are different from the conventional flammable liquid fuel fires and have been classified into a new fire class, i.e. Class F, by some international recognized standard institutions such as National Fire Protection Association. Water mist fire suppression systems are proposed to suppress kitchen fires. In this paper, results in small-scale experiments using cone calorimeter on suppressing cooking oil fires with water mist will be reported. It is observed that good design of the system can suppress peanut oil fire effectively. There might be adverse effects on enhancing the combustion, producing more carbon monoxide and giving out more dark smoke for improper design.     

从里海油气开发纷争看管道铺设方案较量

叙述了里海地区苏联的解体，引发出区域划分归属的矛盾。因丰富的油气储量，引发出资源所有权的纷争。因举足轻重的地缘战略地位，引发出俄美进行能源开发争夺的热点，因油气出口路线方案的选择，引发里海输油管道的经济利益之争和此起彼伏的地缘政治较量。     

国内外油气储运术语标准对比分析

概述了术语标准的作用及地位,梳理了国内外石油工业相关术语标准现状,阐述了国内外石油工业油气储运术语标准体系现存的差距,强调了油气储运术语标准化工作的必要性及紧迫性,建议结合术语提取软件进行油气储运术语标准化建设。     

提高稠油蒸汽吞吐助排增产技术

本文针对稠油蒸汽吞吐开发后期地层压力低、吞吐效果差的问题开展驱油助排技术的研究与试验,利用增能剂在蒸汽热能作用下分解产生大量气体,降低原油粘度,增加地层压力,补充地层能量;部分气体与高分子表面活性剂形成大量泡沫,通过贾敏效应,起到调剖作用。     

艾草和薄荷挥发油提取方法及其构成成分的初步研究

采用索氏提取法、石油醚提取法[1]、水蒸煮法[2]和乙醇提取法提取艾草和薄荷挥发油。研究发现索氏提取法耗时太长,水蒸煮法提取的有效成分浓度低,石油醚提取法出油率低,但是纯度高,乙醇提取法出油率高,比石油醚提取的纯度低。提取的挥发油的数量分别是240ml、0.5ml、250ml、1.5ml。乙醇提取艾叶挥发油的薄层层析有3个斑点,Rf值分别是0.447、0.52、0.66;由石油醚提取薄荷挥发油所得GC-MS显示的片段峰18个峰,分别是585、601、644、685、721、737、775、914、958、1002、1046、1090、1134、1178、1222、1266、1311、1354。研究表明石油醚提取法得到的挥发油纯,乙醇提取法得到的挥发油量多。     

Can oil-rich countries encourage entrepreneurship?

This study provides the first empirical investigation to test one of transmission channels of resource curse, i.e. marginalized entrepreneurship activities. Our panel data analysis of 65 countries from 2004 to 2011 shows a negative and statistically significant association between oil rents dependency and entrepreneurship indicator. This finding is robust to control of other major drivers of entrepreneurship, unobservable country- and time-fixed effects and a different measurement of oil rents dependency. In addition, our main results show that government effectiveness among other dimensions of good governance has a statistically significant moderating effect in entrepreneurship–oil rents nexus.     

Ingredient Optimization and Children’s Liking of Popcorn Seasoned with Fish Protein Powder/Omega-3 Fish Oil

Response surface methodology (Box-Behnken design) was used to optimize the seasoning ingredients of popped popcorn. Children’s liking of seasoned popcorn was also determined by 120 school children. The results indicated that seasoning of popcorn with fish protein powder and omega-3 fish oil could produce accepted snacks that would be more nutritious than the widely consumed regular popcorn. Fortification of popcorn with 9% fish protein powder and/or 6% omega-3 fish oil did not influence the sensory attributes of the prototypes. Liking test revealed that children in the age range of 6 to 12 years liked the selected fortified products. This fortification also provided another avenue for cereal snack food diversification and might be a healthy option to boost children’s nutritional intake and to increase fish protein consumption. Such products are good choices for health-conscious consumers.     

福州市消费者茶油购买行为实证分析

通过对福州市居民的问卷调查,首先对福州消费者在茶油品牌和价格方面上的认识进行差异性比较,然后运用计量模型对茶油购买行为影响因素进行实证分析,结果表明:茶油购买行为的影响因素包括消费者年龄、受教育程度和对茶油品质的了解三个因素;根据实证结果得出积极对消费者进行茶油的宣传对茶油购买具有较大的影响,并提出:明确消费群体,具体市场细分、提高消费者认知程度拓宽销售渠道,加大茶油宣传力度提升茶油品质和性价比、开展茶油精细化和实行品牌化产品策略以及加大认证、引导标准加强监管等相关建议。     

哈萨克斯坦含量规则在哈国油气资源开发利用中的适用

哈国有关油气资源领域哈萨克斯坦含量规则的法律规定,在商品、服务采购以及雇佣员工过程中,不仅将完成哈萨克斯坦含量作为法定义务,且规定其为必备合同条款。在双重规制下,使哈萨克斯坦含量规则得以完全适用并且比例逐年提高,此举促进了哈国经济贸易的发展但也为中国的投资者设置了障碍,中国投资者应审慎应对哈萨克斯坦含量带来的消极影响。