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| 1 | 注气法提高稠油采收率合理技术政策的实验室评价显示文摘萨斯喀彻温省的大多数稠油油藏层薄且位于油田边缘,不适宜用热采方法。对这些稠油油藏而言,非混相的CO_2或天然气驱替工艺可能是十分有利的提高原油采收率技术。如果该工艺的确适用,将会采出90%的原始石油地质储量。该地区无廉价的CO_2资源,可用含有CO_2的其它气体代替。本文采用萨斯喀彻温省研究委员会实验室研究结果来评价含85mol%N_2和15mol%CO_2烟道气的适用性,并评价稠油开发的多种开发技术政策。试验所用稠油(14°API比重)是从位于LOYMINSTER地区的SENLAC油藏收集到的。本项评价研究了驱替类型(二次或三次),注入方式(段塞试验及水-气交替驱替),原油类型(SENLAC含气原油与脱气原油),注入气体(烟道气及CO_2)等因素对原油采收率的影响。采用SENLAC油烟道气所做的线性岩心驱替试验(28℃,2.5-2.7MPa实施状态下)得出的主要结论是: 1.在三种不同注入方式(二次段塞、三次段塞及三次水气交替)之中,含气原油采用二次气段塞注入是稠油开发最适宜的注入方式。因为采用这种注气方法具有很高的驱替效率。 2.用三次水气交替方法比二次段塞方法可以采出更多的原油,因为前者的优势在于能够提高对流度的控制。 3.实验中用含气原油比用脱气原油总采收率高。这是由于含气原油的流度相对更为适宜,含气原油实验中操作压力略高一点。 4.烟道气可作为有效驱替介质,因为其原油采收率比采用CO_2仅低2-4个百分点。人们认为用烟道气方法获得的较好原油采收率是二个竞争机制的综合结果——一为由N_2提供的游离气驱机理,另一个由CO_2提供的溶解机理,这不同于CO_2驱占主导的溶解机理(由CO_2提供)。 | R.K.SRIVASTAVA S.S.HUANG 杨静 孙洪滨 | 1998 | 吐哈油气1998，3，2： | 0 |
| 2 | Role of Soluble Factors in Immune and Normal Sera in the Control of Giardiasis Due to Giardia Iamblia显示文摘Hyperimmune sera(HIS),raised against crude giardia antigen,on in vitro interaction,caused more agglutination of Giardia lamblia trophozoites.Heat inactivated HIS possessed a comparable agglutinating activity as the non-inactivated controls.Non-inactivated normal(unimmunized)serum caused immobilization of Giardia trophozoite,which was checked on heat inactivation.Antibodies in immune sera are mainly responsible for agglutination,whereas the heat labile non-immune components control the mobility of the intestinal parasite. | R.K.SRIVASTAVA N.SETHI N.GUPTA A.K.AGARWAL | 1992 | Biomedical and Environmental Sciences1992，5，2： | 0 |
| 3 | Teratogenicity Studies of a New Potent Tetanus Vaccine in Rabbit (Oryctolagus cuniculus)显示文摘Glaxo Laboratories, Bombay, have prepared a potent tetanus vaccine of 250 Lf as a substitute of the previous 5 Lf tetanus vaccine. The safety evaluation of the vaccine has been reported, but the teratogenic potential was not studied. In the experiment reported herein we have studied the teratogenic action of the vaccine in the progeny of rabbits. No congenital anomalies were observed. | N.SETHI R.K.SRIVASTAVA R.K.SINGH | 1991 | Biomedical and Environmental Sciences1991，4，3： | 0 |
| 4 | Safety Evaluation of a Potent Tetanus Vaccine (250 Lf) in Guinea Pigs (Cavia procellus)显示文摘A subacute toxicity study of a potent tetanus toxoid (250 Lf) was carried out in guinea pigs.The toxoid was injected subcutaneously at the nape of the neck at dose levels of 1.0, 1.5.and 2.0 ml in Groups Ⅱ. Ⅲ. and Ⅳ, respectively.In the controls (Group Ⅰ) 2.0 ml of aluminum phosphate suspension was given in each injection.Periodic evaluations of body weight, food/water intake, general observable behavior, hematology.and blood chemistry in toxoid-injected guinea pigs were similar to those in control guinea pigs.Thus, the toxoid did not cause any side effects up to four times the dose proposed for humans.1990 Academic Press, Inc. | N.SETHI R.K.SRIVASTAVA R.K.SINGH S.SRIVASTAVA | 1990 | Biomedical and Environmental Sciences1990，3，3： | 0 |
| 5 | Evaluating the Impact of Prediction Techniques: Software Reliability Perspective显示文摘Maintaining software reliability is the key idea for conducting quality research.This can be done by having less complex applications.While developers and other experts have made signicant efforts in this context,the level of reliability is not the same as it should be.Therefore,further research into the most detailed mechanisms for evaluating and increasing software reliability is essential.A signicant aspect of growing the degree of reliable applications is the quantitative assessment of reliability.There are multiple statistical as well as soft computing methods available in literature for predicting reliability of software.However,none of these mechanisms are useful for all kinds of failure datasets and applications.Hence nding the most optimal model for reliability prediction is an important concern.This paper suggests a novel method to substantially pick the best model of reliability prediction.This method is the combination of analytic hierarchy method(AHP),hesitant fuzzy(HF)sets and technique for order of preference by similarity to ideal solution(TOPSIS).In addition,using the different iterations of the process,procedural sensitivity was also performed to validate the ndings.The ndings of the software reliability prediction models prioritization will help the developers to estimate reliability prediction based on the software type. | Kavita Sahu Fahad A.Alzahrani R.K.Srivastava Rajeev Kumar | 2021 | Computers, Materials & Continua2021，，5： | 0 |
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