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晶粒细化和残余元素对A713铸态铝合金热裂行为的影响（英文）

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Transactions of Nonferrous Metals Society of China 2016年第7期26卷 1783-1790页

作者： Anil Kumar BIRRU d.BENNY KARUNAKAR department of Mechanical Engineering National Institute of Technology department of Mechanical and Industrial Engineering Indian Institute of Technology

为减少或防止热裂现象的产生,研究具有长程凝固区A713铸态铝合金的热裂行为。对添加不同晶粒细化剂如Al-2.5Ti-0.5C和Al-3.5Ti-1.5C的合金在不同浇铸温度(700、750和780°C)条件下进行热裂实验。结果表明:添加晶粒细化剂Al-3.5Ti-1.5C... 详细信息

为减少或防止热裂现象的产生,研究具有长程凝固区A713铸态铝合金的热裂行为。对添加不同晶粒细化剂如Al-2.5Ti-0.5C和Al-3.5Ti-1.5C的合金在不同浇铸温度(700、750和780°C)条件下进行热裂实验。结果表明:添加晶粒细化剂Al-3.5Ti-1.5C能减少热裂现象的产生,但仅添加晶粒细化剂不能完全阻止A713铸态铝合金中热裂现象的产生。这与早期一些研究者得出的结论相矛盾。考察了铁元素对A713铸态铝合金热裂行为的影响。结果显示,同时添加晶粒细化剂和铁元素能减少A713铝合金的内部枝晶分离,从而沿晶界产生枝晶间的联锁。因此,铁元素作为工业铝中的一种杂质元素,能阻止A713铝合金热裂现象的产生。

关键词：铝合金热裂浇铸温度晶粒细化

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Modified deep sclerectomy combined with Ex-PRESS filtration device versus trabeculectomy for primary open angle glaucoma

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International Journal of Ophthalmology(English edition) 2017年第5期10卷 728-732页

作者： Vassilios Kozobolis Georgios d.Panos Aristeidis Konstantinidis Miguel Teus Georgios Labiris department of Ophthalmology University General Hospital of Alexandroupolis School of Medicine Democritus University of Thrace Alexandroupolis Eastem Macedonia and ThraceGR-68100 Greece Eye Institute of Thrace School of Medicine Democritus University of Thrace Alexandroupolis Eastern Macedonia and Thrace GR-68100 Greece Glaucoma Laser Eye Center Athens GR-10674 Greece department of Ophthalmology School of MedicineUniversity of Alcala Madrid ES-28801 Spain

AIM：To compare the efficacy of modified deep sclerectomy combined with Ex-PRESS shunt versus trabeculectomy in primary open angle glaucoma. METHOdS：This is a prospective cohort comparative single-center study. Forty-nine eyes of 49 patients were enrolled in the study. Patients were randomly divided into two groups. Group A（22 patients） underwent classic trabeculectomy and group B（27 patients） underwent modified deep sclerectomy combined with insertion of Ex-PRESS model P50 drainage device. RESULTS：Mean age was 69±7y in group A and 64±8y in group B（P=0.03）. The mean reduction was 11.1±5.7 mm Hg in group A compared to 15.8±5.7 mm Hg in group B at 6mo（P=0.006）, and 9.8±4.9 mm Hg and 15.4±4.7 mm Hg respectively at 1y（P=0.0001）. Regarding the postoperative glaucoma medication, significant difference was observed between the two groups（in favour of group B） only at 6mo（P=0.017）. At the end of the follow-up period complete success rate in group A was 68.2% compared to 92.6% in group B（χ^2 test, P=0.07） and qualified success rate was 100% in both ***：Modified deep sclerectomy combined with Ex-PRESS shunt may provide comparable IOP reduction with fewer complications in management of primary open angle glaucoma.

关键词： modified deep sclerectomy Ex-PRESSdrainage device trabeculectomy glaucoma

SYNTHESIS　ANd　CATALYTIC　PROPERTIES　OF　LAYEREd　dOUBLE　HYdROXIdES　PILLAREd　BY　HETEROPOLYOXOMETALATE

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Chinese Chemical Letters 1995年第8期6卷 719-722页

作者： Xu, Z He, HM Zhou, dM Wen, LS Jiang, d Wu, Y Jilin Univ Dept Chem Changchun 130023 Peoples R China Chinese Acad Sci Changchun Inst Appl Chem Changchun 130021 Peoples R China

Layered double hydroxides(LdHs)pillared with heteropolyoxometalate have been synthesized via both restructuring of hydrotalcite-like compounds and direct anion exchange under microwave *** and their derivatives are both found to be efficient for alkylation of isobutane with butene with a higher butene conversion and selectivity towards Cso

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The portrait of a lady

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作者： edited by Robert d. Bamberg.

来源：南通市图书馆图书评论

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非接触式汽液固系统储换热性能的实验研究

太阳能学报 1998年第4期19卷 352-359页

作者：张寅平 Stein.,d 清华大学

报道了非接触式汽液固（ＧＡＬＩＳＯＬ）系统储换热性能的实验装置、工作原理及实验研究结果，展示了ＧＡＬＩＳＯＬ系统储换热的良好性能，探索了该系统的工作极限条件，为该系统的理论模拟及系统设计和性能优化打下了基础。

关键词：相变储热传热汽液固系统储热

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Simulation of a molten salt fast reactor using the COMSOL Multiphysics software

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Nuclear Science and Techniques 2020年第12期31卷 1-19页

作者： d.H.daher M.Kotb A.M.Khalaf Moustafa S.El-Koliel Abdelfattah Y.Soliman department of Physics Faculty of ScienceAl-Azhar UniversityCairoEgypt department of Reactors Nuclear Research CenterAtomic Energy AuthorityCairoEgypt Nuclear Engineering department King Abdulaziz UniversityJeddahSaudi Arabia

In this study,COMSOL v5.2 Multiphysics software was utilized to perform coupled neutronics and thermal–hydraulics simulations of a molten salt fast reactor,and the SCALE v6.1 code package was utilized to generate the homogenized cross-section data *** library’s 238 cross-section groups were categorized into nine groups for the simulations in this *** results of the COMSOL model under no fuel flow conditions were verified using the SCALE v6.1 code results,and the results of the neutronics and thermal–hydraulics simulations were compared to the results of previously published *** results indicated that the COMSOL model that includes the cross-section library generated by the SCALE v6.1 code package is suitable for the steady-state analysis and design assessment of molten salt fast ***,this model was utilized to investigate the neutronics and thermal–hydraulics behaviors of the *** designs were simulated and analyzed in this model,and the results indicated that even if the wall of the core is curved,hot spots occur in the upper and lower portions of the core’s center near the reflectors.A new design was proposed that utilizes a flow rate distribution system,and the simulation results of this design showed that the maximum temperature in the core was approximately 1032 K and no hot spots occurred.

关键词： Molten salt COMSOL SCALE Neutronics Thermal-hydraulic

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COVId-19后影像学肺部后遗症及与临床和功能性肺部评估的相关性：一项前瞻性队列研究

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国际医学放射学杂志 2024年第2期 254-254页

作者： S.Soliman H.Soliman M.Crézél P.Y.Brillet d.Montani L.Savale 朱婉秋

摘要目的 COVId-19是否会导致长期肺部后遗症尚不清楚。研究旨在评估COVId-19住院病人持续性放射学肺纤维化的患病率。方法该项前瞻性单中心研究收集了2020年

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Non-malarial fever among pregnant women in Medani Hospital,Sudan:diagnostic uncertainty and overtreatment with quinine

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Asian Pacific Journal of Tropical Medicine 2010年第5期3卷 392-394页

作者： Elhassan M Elhassan Abd Elrahium d Haggaz Mamoun M Magzoub Ishag Adam University of Geizera University of Kassala Faculty of Medicine University of Khartoum

Objective:To investigate the accuracy of malaria diagnosis among pregnant women admitted in Medani Maternity Hospital,Central Sudan during June-October 2009 and to investigate the antimalarials prescribed in this ***:Soeio-demographic characteristics and obstetrics history were gathered using pre-tested *** finger prick blood samples were collected from pregnant women who admitted as malaria case after an initial microscopic test done by general microscopists for malaria *** antimalarial treatment prescribed by treating doctor was inquired ***:Only 21(8.6%) out of 243 pregnant women admitted as malaria case after an initial microscopic test done by general microscopists for malaria were found to have blood film *** was no significant difference in the specificity of the microscopy accuracy between those who have been investigated in the private and governmental sector,15/193(8.2%) vs.6/60(10%),(P>0.05).Quinine infusion was the prescribed drug in this ***:There is a very poor specificity of malaria microscopy in pregnant women admitted to Madani Maternity *** was the drug *** control programme should interfere urgently to change this situation.

关键词： Malaria Pregnancy diagnosis RdTs Sudan

An infertile male with dilated seminal vesicles due to functional obstruction

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Asian Journal of Andrology 2017年第2期19卷 256-257页

作者： Michael d Font Alexander W Pastuszak John R Case Larry I Lipshult Baylor College of Medicine Houston TX 77030 USA Center for Reproductive Medicine Baylor College of Medicine Houston TX 77030 USA Scott department of Urology Baylor College of Medicine Houston TX 77030 USA Urology San Antonio San Antonio TX 78229 USA

dear Editor, The patient is a 45-year-old male who presented to an outside clinic in 2014 for evaluation of painful ejaculation, infertility, and difficulty with urination for as long as he could remember. He reported no past significant medical or surgical history and no family history of infertility. He was given a trial of tamsulosin without improvement in his symptoms. Initial semen analysis demonstrated azoospermia.

关键词： infertile male dilated seminal vesicles due functional obstruction