Shell
Shell的相关文献在1984年到2023年内共计670篇,主要集中在自动化技术、计算机技术、化学工业、肿瘤学
等领域,其中期刊论文420篇、会议论文4篇、专利文献246篇;相关期刊257种,包括内蒙古石油化工、电脑编程技巧与维护、黑客防线等;
相关会议3种,包括全国中氮情报协作组第28次技术交流会、第十六届全国大型合成氨装置技术年会、全国气体净化技术协作网2003年技术交流会等;Shell的相关文献由1252位作者贡献,包括Jinping Zhang、Xiaohua Yao、周华等。
Shell
-研究学者
- Jinping Zhang
- Xiaohua Yao
- 周华
- 张永兴
- 曹志凯
- Xuebin Li
- Yue Ying
- 刘义
- 叶健
- 吴国祥
- 吴彪
- 宋迪
- 彭爱华
- 朱子川
- 李丽
- 李飞
- 楼佳明
- 汪兵
- 王方
- 王靖岱
- 蒋斌波
- 阳永荣
- 黄正梁
- 余祥坤
- 倪伶俐
- 孙爱武
- 曾欢
- 李彦华
- 李汗
- 杨亮
- 杨文忠
- 杨涛
- 汪家铭
- 纵秋云
- 茆平
- 赵园园
- 钱国庆
- 陈闯
- 韩燕燕
- Agunsoye J. Olumuyiwa
- A·J·普拉布
- B·乔德里
- Futoshi Aranishi
- G. S. Anagnostatos
- Geoffroy Auvert
- Masato Tanaka
- M·辛格
- Osamu Kai
- R·R·帕塔克
- Syed Ahmed Shah
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Guojun Zheng;
Zhaomin Yan;
Yang Xia;
Ping Hu;
Guozhe Shen
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摘要:
Peridynamics(PD)is a non-localmechanics theory that overcomes the limitations of classical continuummechanics(CCM)in predicting the initiation and propagation of cracks.However,the calculation efficiency of PDmodels is generally lower than that of the traditional finite elementmethod(FEM).Structural idealization can greatly improve the calculation efficiency of PD models for complex structures.This study presents a PD shell model based on the micro-beam bond via the homogenization assumption.First,the deformations of each endpoint of themicro-beam bond are calculated through the interpolation method.Second,the micro-potential energy of the axial,torsional,and bending deformations of the bond can be established from the deformations of endpoints.Finally,the micro moduli of the shellmodel can be obtained via the equivalence principle of strain energy density(SED).In addition,a new fracture criterion based on the SED of the micro-beam bond is adopted for crack simulation.Numerical examples of crack propagation are provided,and the results demonstrate the effectiveness of the proposed PD shell model.
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徐娟;
刘洋;
许竹霞;
钟斌斌
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摘要:
同城用户因对象不同,需求各异,文章基于用户的特殊需求,编写Shell程序进行气象数据格式自动转换和主动分发推送,结合Linux操作系统多线程并发和任务定时触发的特点实现了程序的自动高效运行。此外,数据加锁机制的应用有效保证了用户端读取数据的完整性,为同城用户及时稳定的气象数据应用服务提供了技术保障。
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María Janeth Rodríguez-Roque;
Carmen Lizette Del-Toro-Sánchez;
Janet Madeline Chávez-Ayala;
Ricardo Iván González-Vega;
Liliana Maribel Pérez-Pérez;
Esteban Sánchez-Chávez;
Nora AideéSalas-Salazar;
Juan Manuel Soto-Parra;
Rey David Iturralde-García;
María Antonia Flores-Córdova
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摘要:
Phenolic compounds are related to high biological activity,avoiding oxidation in food and human systems.Nutshells are by-products derived from the pecan nut processing that contain important amounts of phenols which biological activity must be studied.This research aimed to evaluate the antioxidant(DPPH,ABTS,FRAP and hemolysis)and anti-inflammatory activities of shell extracts from pecan nuts harvested during the crop production cycle 2018 and 2019,as well as the in vitro digestibility of their phenolic compounds,including flavonoids.Results showed that extracts from the crop production cycle 2018 obtained the highest yield,while those from 2019 contained the highest concentration of phenolic compounds,flavonoids and antioxidant capacity determined by DPPH(22.96 mmol ET),ABTS(91.55 mmol ET)and inhibition of hemolysis(92.12%).The anti-inflammatory activity exhibited an inhibition of the elastase enzyme up to 50 min and the bioaccessibility of phenolic compounds reached up to 32%.These results showed that pecan nutshell extracts are an important source of biologically active compounds,thus,they are suitable to be used as commodities in different fields such as agricultural,food and pharmaceutical industries.Future studies must be carried out in order to elucidate the activity of nutshell extracts within in vivo systems.
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贾安利
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摘要:
粉煤三通换向阀是Shell粉煤气化工艺的关键设备之一,由于生产技术难度高,长期被国外垄断。近年来,随着国内加强对“卡脖子”技术的科技攻关,不仅成功研发了具有自主知识产权的国产化粉煤三通换向阀,而且针对国外产品使用中存在的问题做了改进。
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陈平平
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摘要:
某公司重油气化装置采用壳牌(Shell)新重油气化工艺,以脱油沥青为进料,设计硫质量分数6.8%,灰分0.18%,250°C 动力黏度300.0 mPa·s,是Shell在运重油气化装置中进料性质最差、单炉负荷最高、总规模最大的装置.该装置高度自动化可实现"六年一修",其关键设备——气化主烧嘴寿命最长可达8736 h.对装置投产以来遇到的重大问题及相应解决措施进行了介绍,并对装置运行情况进行了评价.基于该气化装置已实现的长周期运行业绩,提出采用重油气化工艺解决目前炼油厂面临的减压渣油、催化裂化油浆、乙烯焦油、渣油加氢未转化油的出路问题.
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陈平平
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摘要:
基于某炼油厂以脱油沥青为原料的IGCC(整体煤气化联合循环发电系统)工艺技术,对重油气化制氢进行了深入研究.结果表明:采用Shell重油气化工艺,当脱油沥青价格为1275元/t时,氢气成本为9683.70元/t;当乙烯焦油价格为1145元/t时,氢气成本为9032.50元/t;当催化裂化油浆价格为760元/t时,氢气成本为7116.83元/t;当渣油加氢未转化油价格为700元/t时,氢气成本为7103.05元/t.POX(部分氧化法制氢)不仅能够解决炼油厂面临的高硫减压渣油、高灰分催化裂化油浆、高灰分渣油加氢未转化油出路问题,更可以借此获得廉价氢源,具有极佳的经济效益,是未来重油加工的一个发展方向,对炼油厂炼油结构调整和新建项目方案规划具有一定的指导和借鉴意义.
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