酸性电位水在鲜切果蔬加工和贮藏中的应用

作为一种新型杀菌剂,酸性电位水具有广谱杀菌的特性而且灭菌后可完全还原咸水,无毒、无残留,广泛用于食品加工、医疗卫生等领域.采用酸性电位水用于鲜切果蔬的杀菌保鲜,可以减少在农产品储运过程中化学药剂的使用,增加食品的安全性.对酸性电位水在鲜切果蔬加工和贮藏方面的应用研究进行了总结,对其应用前景作了分析评价.将酸性电位水在该...     

垂直分段一体化污水生化处理方法及装置(专利申请号:99127125.4)

城市污水量大,浓度低,可生化性强,故长期以来生物化学处理成为主体工艺.微生物无所不在,种类繁多,功能各异.如何充分发挥利用微生物种群净化污水的功能是工艺设计的主要目标,先后出现了众多的处理城市污水工艺和方法.     

神奇的杀菌灭藻剂BC-655

ＢＣ -６５５杀菌灭藻剂是北京化工研究院研究开发的一种新型水处理药剂。它具有杀菌、灭藻、剥离等功能 ,其特点是 :广谱、高效,杀菌灭藻和降解迅速 ,降解的中间产物及最终产物无毒 ,产品本身毒性比较低 ,对水体无污染及二次污染 ,配伍性好 ,对设备腐蚀性小 ,是一种绿色环保型水处理药剂。“１９９９世界园艺博览会”召开之前 ,滇池保护委员会办公室就改善滇池水质、消除滇池中生长的蓝藻应急措施进行招标 ,ＢＣ -６５５杀菌灭藻剂一举夺标。试验过程中 ,它杀菌灭藻迅速 ,杀菌率高达９０ %以上 ,并克服了国际上常用水系合成固体药剂用于水…     

油田采出水物理杀菌技术探讨

细菌是油田采出水处理的主要控制指标之一,不仅腐蚀污水处理设备设备,影响污水处理达标,同时会造成地层堵塞,影响注水开发效果。对油田在用的物理杀菌装置进行了研究,评价了其杀菌效果及运行费用,同时分析了影响物理杀菌装置运行效果的主要因素,并提出了针对性的解决措施。     

电解脱脂生产线工艺优化

电解脱脂是一种当下比较流行的一种去除油脂或者其它污染物的方式,对于我们国家很多的行业发展都有着比较重要的意义。在当前国内环境下,电解脱脂是一种效率很高的脱脂手段,但是电解脱脂对于生产线的工艺水平有着较高的要求,比如对于氢氧化钠的浓度、活性剂的选取、温度控制等等。文章就当前的电解脱脂生产工艺进行研究,对如何通过生产工艺提升电解脱脂的效率和效果进行研究,将电解脱脂的生产线工艺进行优化。     

全膜法水处理工艺技术及其应用分析

水处理是一项重要的工作,不同的工艺技术,处理效果有所区别,全膜法水处理工艺的效果较好。基于此点,文章从全膜法水处理工艺的技术优势分析入手,对全膜法水处理工艺技术在纯水制取和环保工程中的应用进行论述。期望通过文章的研究能够对全膜法的推广使用有所帮助。     

石油微生物检验方法的分类及特点

石油及产品中的微生物主要涉及到细菌、酵母菌、霉菌.微生物以石油为营养物质在适宜的条件下繁殖、生长.对变质的石油产品的检查、利用微生物采油或在炼油加工中脱蜡、脱硫等,都需要研究石油与微生物的相互作用,研究石油微生物的检验方法,以确定微生物的种类和浓度、生长规律,检查防菌、防霉添加剂的效果;对不同微生物分离、接种、培养,利用微生物为人类服务.     

舒筋通络颗粒中乳香挥发油提取及包合工艺研究

为提高乳香挥发油在制剂中的稳定性,对舒筋通络颗粒中乳香挥发油的提取及其包合工艺进行了研究。选择浸泡时间(A)、药材粒径(B)、加水量(C)、提取时间(D)为考察因素,采用L_9(3~4)进行正交试验设计,优化乳香挥发油的提取工艺,通过正交试验,对饱和水溶液法和胶体磨法两种包合方式进行了工艺研究。结果表明:影响因素的优化组合为A_1B_1C_1D_3,其中加水量和提取时间对收率具有极显著性影响,包合时间、挥发油和β-环糊精比例、包合温度对饱和水溶液法有极显著性影响;研磨时间、挥发油和β-环糊精比例对胶体磨法有极显著性影响。从生产角度考虑,包合乳香挥发油采用胶体磨法较饱和水溶液法更具有优势。     

甲醇电氧化制备甲醛的研究

介绍了一种用电化学法合成甲醛的新方法,研究了甲醇和盐酸混合体系中各种工艺条件对甲醛收率的影响,得到最佳电解条件如下:电极电流密度为20 mA/cm2,电解温度为40℃,电解时间为6 h,甲醇初始浓度为0.5 mol/L,盐酸初始浓度为1 mol/L。在此条件下电解甲醇,甲醛收率达19.1%,电流效率为28.8%。     

强捻织物依旧抢眼

纺织品开发日益追求织物的高档性与舒适性,面料在工艺上的创新有所突破,具有一定技术含量和高附加值的产品受到市场的青睐,企业一方面注重新纤维和高支数纱线的应用,另一方面融合应用多种工艺,从而使面料达到精致化的外观效果和功能效果。顺应这种潮流,市场对强捻织物(同向或异向加捻)有极大需求。     

Divergent patterns of engagement in Internet standardization: Japan,Korea and China

This article analyzes the engagement of Japanese, Korean and Chinese participants in the development of Internet standards at IETF on the basis of four quantitative metrics: attendance, patenting, authorship and leadership. The results are strikingly divergent. Japanese involvement in Internet standardization began early and Japan was, for many years, second only to the U.S. in terms of IETF participation. Though Japanese participation has declined since the early 2000s, Japan remains a major contributor to IETF standardization. Korean involvement in IETF has always been significant, but below the levels of Japan and major European countries. Korean participation in IETF has also declined over the past decade, and has been dominated by one firm, Samsung. Though meaningful Chinese involvement in IETF did not begin until the mid-2000s, it has rapidly expanded in recent years. Today, China is a major player in numerous areas of Internet standardization in terms of three metrics (participation, patenting and leadership), and is rapidly gaining in terms of document authorship as well. Most of China׳s recent IETF involvement can be attributed to Huawei, though other Chinese firms have recently begun to increase their participation in the organization. Thus, contrary to some views that China׳s engagement with standardization is primarily one of indigenous innovation and “catching up”, China׳s experience with IETF demonstrates deliberate and effective engagement with a major Western standards-development organization on its own terms.     

Whose Image is it Anyway?: Some Considerations of the Curricular Importance of Subject Image in Secondary School Design and Technology Education

This paper explores the idea that a sense of school subject image is a necessary feature of curriculum management and a potent force for change. The discussion centres on the view that all school subjects have an image and that if those intimately involved with the subject do not control the image then someone else does! In such circumstances the image is the product of past encounters and old euphemisms and is unlikely to hold the changed realities.The UK developments in Design and Technology education (the term Design and Technology is used to denote the school subject defined under this heading by the UK National Curriculum, 1995) have created something of an image problem which has interesting international parallels. Some of these problems are due to clearly discernible internal tensions and an ambiguous relationship with other subject areas.Through greater attention to subject image internal controversies might be acknowledged and resolved, relationships with other subject areas can be more meaningfully understood and practitioners can be helped to make sense of curriculum change.     

快速成形技术的应用及热点分析

基于快速成形技术的原理,展示了快速成形技术在快速模具制造、金属零件直接成形、反求工程等领域的广泛应用,总结了快速成形制造技术研究的热点,即研发新材料和新设备、提高成形精度、建立RPM的反求工程系统、建立成形技术的统一标准和扩大成形技术的应用领域。     

增强Linux系统安全性的措施

L inux系统的安全取决于系统管理员如何来管理它。本文探讨了一系列可以增强安全性的技巧与策略 ,包括 :系统安装原则、BIOS安全、口令安全策略、设计帐户自动注销功能、文件系统和日志安全策略、使用 SSH及 TCP-WRAPPERS,隐藏系统信息、删除所有特殊帐户、关闭控制台程序、限制系统中的 SUID/ SGID程序等。本文最后向 L inux系统管理员提出了一些安全管理方面的建议     

HSE走进中国石油

企业管理水平的好坏直接影响着企业的经济效益,运用HSE管理能提高企业管理水平,HSE管理模式将健康,安全,环境三者视为一个有机的整体。HSE管理认为人的安全是第一位的,人是创造财富的原动力,是企业的最大财产,HSE管理体系强调的是“蝴蝶效应”。     

CIS与现代企业管理美学

概括性介绍了 ＣＩＳ（Ｃｏｒｐｏｒａｔｅ Ｉｄｅｎｔｉｔｙ Ｓｙｓｔｅｍ）的三大基本组成，并阐述了它与现代企业管理密不可分的相互联系及所处的举足轻重的地位，指出导入ＣＩＳ是现代企业谋求发展的重要手段。     

Material power and normative conflict in global and local agrifood governance: The lessons of ‘Golden Rice’ in India

This special section aims to investigate the interaction of global and local forces in shaping agrifood governance. It starts from the recognition that a multitude of actors and norms shape today’s agrifood system. The resulting opaqueness of the systems makes it extremely difficult to understand and explain processes and outcomes of agrifood governance. Given the sustainability challenges facing the agrifood system, improvements in our understanding of what the interaction of global and local actors and norms means on the ground are urgently needed, however. The section, therefore, analyses agrifood governance in India across a selected group of cases. It does so by employing a systematic framework emphasizing the material and ideational dimensions of power and their interaction. The section has chosen India as the setting in which to analyze this interaction due to the crucial role the food demand and supply of this rising power plays in today’s agrifood system. This article provides the special sections’ analytical framework, which uses the interplay of material and ideational dimensions of power as a focal lens. In addition, the article applies this framework to an empirical study of the political conflict around GMO foods in India, specifically the case of ‘Golden Rice’.     

蒸汽热量计量应用的探析

研究了石油化工企业的燕汽计量情况,着重对蒸汽热量计量的合理性进行了分析,阐述了蒸汽热量计量的依据及计算方法,以及蒸气热量计量对节能降耗的重要意义.     

论传统旗袍文化与现代时装

中国的旗袍文化蕴含着非常丰富的文化内涵和设计思想,如今旗袍的普及受到一定的限制,只有经过改良,才可变局限性为可行性,才可使旗袍焕发青春,走向新时代。     

望峰岗矿井贯通测量技术分析

在深部开采矿井两井间贯通测量时,利用加测陀螺定向边和用四架法代替传统的三架法测量,分析了由起始边的方位角误差引起的支导线终点误差及由测角量边引起的导线终点的点位误差.