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Asian Journal of Andrology 2009年第5期11卷 617-622,I0004页

作者： Altug Koc[土耳其] Odul Onur[意大利] Mehmet Ali ergun[意大利] e. Ferda Pergin[意大利] Department of Medical Genetics Gazi University Faculy of Medicine Ankara 06500 Turkey Private Practice Tunali Hilmi Cad. 70/18 06680 Kavaklidere Ankara 06680 Turkey

Supernumerary mar.e. chromosome 15 （sSMC[15]） is the most frequent mar.e. chromosome, and it is generally regar.e. as unimportant if it does not contain the Prader-Willi/Angelman syndrome critical region （PWACr）. The clinical importance of the lar.e. mar.e.s in association with the critical region is mentioned in almost all reports related to mar.e. chromosome 15, and smaller mar.e.s are solely associated with minor dysmorphic features, azoospermia and recur.e.t miscarriages. However, these small sSMC（15）s without the PWACr may also determine a specific phenotype. A dysmorphic examination of an azoospermic patient in a genetics clinic was perfor.e. and was followed by a peripheral blood lymphocyte chromosomal analysis according to standard cytogenetic methods. Nucleolar region （NOr） banding, C-banding, fluorescence in situ hybridization and a molecular investigation of Y-microdeletions were also perfor.e.. The clinical evaluation identified dysmorphic features accompanied with azoospermia and severe ‘Angle Class Ⅱ, Division 1 Open Bite Deformity＇. The molecular cytogenetic study revealed the small sSMC（15）. In addition, a Y-microdeletion analysis showed that the azoospermia was not the result of a deletion. Although the presented case might represent a coincidental example of supernumerary mar.e. 15 and mandibular anomaly association, the condition may also define a specific phenotype that may be more than azoospermia. This condition may be characterized by infertility, malar hypoplasia, mandibular anomaly, keloid formation and minor dysmorphic features.

关键词： auriculocondylar syndrome azoosperrnia infertility isodicentric 15q open bite deformity small supemumerary mar.e. chromosome 15

Settling behavior of spherical particles in eccentric annulus filled with viscous inelastic fluid

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Petroleum Science 2022年第4期19卷 1653-1663页

作者： Zhao-Peng Zhu Xian-Zhi Song ergun Kuru Hong-Bo Chen Bu-Wen Yu Zi-Chao Lin Yan-Xin Sun China University of Petroleum-Beijing Beijing102249China University of Alberta Edmonton10230Canada State Key Laboratory of Petroleum resour.e. and Prospecting China University of Petroleum-BeijingBeijing102249China

Hole cleaning is a complex process as there are many variables affecting cuttings removal(*** fluid type,density,flow rate and r.e.logical properties,cuttings size,drill pipe rotation speed).With the increasing number of drilling small diameter wells(*** tubing drilling applications,ultra-deep wells drilled for.e.ploitations of unconventional oil and gas resour.e.),the wall resistance of the micro annulus also emer.e. as one of the most critical factors affecting the cuttings accumulation in *** eccentricity of drill pipes commonly obser.e. during the drilling process of ultra-deep well and coiled tubing well makes the wall resistance effect on the cuttings transport even more *** the wall resistance effect on the particle settling behavior in eccentric annuli is,therefore,crucial for hydraulic design of efficient cuttings transport operations in these *** this study,a total of 196 sets of particle settling experiments were carr.e. out to investigate the particle settling behavior in eccentric annuli filled with power-law *** test matrix included the eccentricity ranges of 0-0.80,the dimensionless diameter ranges of 0.13-0.75 and the particle reynolds number ranges of 0.09-32.34.A high-speed camera was used to record the particle settling process and determine the influences of the eccentricity,the dimensionless diameter,the fluid r.e.logical properties,and the solid particle characteristics on the wall factor and the particle settling *** functional relationship among the dimensionless diameter,the particle reynolds number,and the wall factor was determined by using the method of controlling *** eccentric annulus wall factor model with average relative error of 5.16%was ***,by introducing Archimedes number,an explicit model of particle settling velocity in the eccentric annulus with average relative error of 10.17%was established.A sample calculation of particle settling vel

关键词： Cuttings transport Particle settling velocity eccentric annulus Wall effect

Density Assessment of Different Metals and Alloys by Gamma-ray Transmission Technique via Using Co-60 radioactive Source

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Journal of Physical Science and Application 2017年第1期7卷 39-42页

作者： Muttalip ergun Turgay electronic and Automation Division Mustafa Kemal University Hatay 31001 Turkey

In this study, density measurements were obser.e. by using gamma transmission technique. Co-60 gamma emitter was used as gamma radioisotope sour.e. regarding the gamma-ray transmission method, initial radiation intensity （I0） and radiation intensity （I） determined experimentally and [I/I0] rates were calculated and then density of materials could be determined by using Beer-Lambert equation. experimental application perfor.e. on widespread industrial metals or metal alloys e.g. lead, copper and steel, brass. With this study, it is shown that gamma transmission technique can be used for density measurements.

关键词： Co-60 density measurement metal/alloy gamma-transmission technique nuclear applications nuclear technique.

effect of age and plaque morphology on diagnostic accuracy of dual sour.e.multidetector computed tomography coronary angiography

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Journal of Geriatric Cardiology 2014年第2期11卷 106-112页

作者： Hamza Sunman Kudret Aytemir Hikmet Yorgun Ugtr Canpolat Ali Taher.e.is Demiri Tuncay Hazlrolan Levent Sahiner ergun B.Kaya Giray Kabakci Lale Tokgozoglu Ali Oto Department of Cardiology Ministry of Health Diskapi Yildirm Beyazit Education and Research Hospital06110AnkaraTurkey Department of Cardiology Hacettepe University Faculty of MedicineSihhiye06100AnkaraTurkey Department of Cardiology Turkiye Yuksek Ihtisas Hospital06100AnkaraTurkey Department of radiology Hacettepe University Faculty of MedicineSihhiye06100AnkaraTurkey

BackgroundMultidetector 计算了冠的 angiography 代表的断层摄影术(MDCT ) 在心脏的成像和它的最令人激动的工艺的革命之一逐渐地在冠的动脉疾病的诊断被使用了。这研究的目的是调查年龄的效果， *** 病人的诊断精确性上的冠的匾石灰... 详细信息

BackgroundMultidetector 计算了冠的 angiography 代表的断层摄影术(MDCT ) 在心脏的成像和它的最令人激动的工艺的革命之一逐渐地在冠的动脉疾病的诊断被使用了。这研究的目的是调查年龄的效果， *** 病人的诊断精确性上的冠的匾石灰化被使用双来源的 MDCT 和常规冠的 angiography 检验。MDCT 结果关于严厉被分析(>；50% 狭窄) 并且形态学(非钙化，混合，或钙化) 冠的动脉粥样硬化患者，在 16 片断 *** 评估的匾总计，有 2,687 个冠的动脉片断的 181 个病人(94 个男人和 87 个女人) 与 MDCT 被检查。90 三个病人比 65 岁老(组 A， 42 个男人) 并且 88 更年轻(组 B， 52 个男人) 。二 -- 因为小远侧的冠的容器片断或运动人工制品， 109 个冠的动脉片断(7.2%) 被排除。有非诊断的图象质量的片断的全面数字在两组病人是类似的。2,687 个评估片断，(5.8%) 157 是显著地 diseased，并且他们中的 144 个被 MDCT 正确地检测。诊断评估证明敏感，积极预兆的价值，特性，和否定预兆的价值是 89.5% ， 62.5% ， 96.0% ，和 99.2% ，分别地在组 A，并且 95.2% ， 64.8% ， 97.5% ，和 99.8% 在组 B 分别地。另外，在两个组与非钙化的、混合并且钙化的匾在冠的片断详细说明了基于片断的分析是在这研究观察的高诊断的精确性建议的类似的诊断 *** 那 MDCT 冠的 angiography 能是为更年轻的病人而且为更老的病人的一个合适的诊断工具不仅。

关键词： Age Calcification Coronary ar.e.y disease Computed tomography

玻璃体内注射曲安奈德治疗视网膜中央静脉阻塞引起的黄斑水肿

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世界核心医学期刊文摘（眼科学分册） 2005年第8期1卷 14-15页

作者： Krepler K. ergun e. Sacu S. 潘佳鸿 Medical University of Vienna Department of Ophthalmology Waehringer Guertel 18-20 A-1090 Vienna Austria Dr.

Purpose: To evaluate treatment of macular oedema due to central retinal vein o cclusion (CrVO) with intravitreal triamcinolone acetonide. Methods: In a prospec tive case ser.e., 13 patients with macular oedema due to non-ischaemic CrVO rec eived an intravitreal injection of 4 mg triamcinolone acetonide. examination inc luded assessment of best cor.e.ted visual acuity (BCVA) for distance and reading , measurement of intraocular pressure (IOP), fluorescein angiography and high re solution imaging by optical coherence tomography, preoperatively and 1 week, 1 m onth, 3, 6 and 9 months postoperatively. results: Preoperative mean BCVA was 0.9 ±0.4 for distance vision and 1.0±0.3 for reading acuity, respectively. A signi ficant improvement in distance VA (0.5±0.3, preading acuity (0.7± 0.3, p=0.03) was obser.e. until 3 months and 6 months, respectively. Mean macula r thickness was significantly reduced until 9 months postoperatively. Conclusion : Intravitreal injection of triamcinolone acetonide led to a significant improve ment in mean VA in patients with macular oedema due to CrVO. However, the signif icant effect was not permanent and persisted for a maximum of 6 months.

关键词：玻璃体内注射黄斑水肿平均视力荧光血管造影术近视力远视力矫正视力眼内压病例研究高分辨率成像

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磁层顶附近表面波与磁力线共振的耦合机制

磁层顶附近表面波与磁力线共振的耦合机制

性别差异对野百合碱诱导的大鼠肺动脉高压的影响

第十四届全国日地空间物理学术研讨会

作者：刘文龙 T.e.Sarris 李炘璘宗秋刚 r.ergun V.Angelopoulos K.H.Glassmeier 北京航空航天大学宇航学院 LASP University of ColoradoBoulderColorado 北京大学地球与空间科学学院 IGPP University of California-Los AngelesCalifornia IGeP Technical University of Braunschweig Germany

本文利用THeMIS卫星的观测数据,研究一个向日面的极向模超低频波事件。2007年5月29日,五颗THeMIS卫星在同一个轨道先后穿越向日面磁层,它们都观测到了很强的10-4毫赫兹的窄频超低频波。通过与LANL卫星的粒子观测数据进行对比,我们发现...

本文利用THeMIS卫星的观测数据,研究一个向日面的极向模超低频波事件。2007年5月29日,五颗THeMIS卫星在同一个轨道先后穿越向日面磁层,它们都观测到了很强的10-4毫赫兹的窄频超低频波。通过与LANL卫星的粒子观测数据进行对比,我们发现这个超低频波事件覆盖了很广阔的区域:09:00-13:00地方时和5-9.5地球半径。它的外边界在07:00到08:30世界时期间逐渐向地面移动,表明该超低频波在以小时的时间尺度逐渐衰减。在磁层点外面,我们发现波动的强度08:00到09:00世界时期间快速地变化:先减小后增大。我们认为,波动强度的快速减小可能是由于等离子体层顶运动所造成的快速衰减机制,时间尺度为几十分钟。波动强度的增大可能是由于等离子体层顶附近的超低频波激发机制。通过分析,我们提出如果等离子体层顶的内外密度比值接近2的时候,等离子体层顶表面波就可能与局地的磁力线共振发生耦合,进而激发等离子体层顶区域的超低频波。

关键词：

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中华高血压杂志 2013年第7期21卷 637-637页

作者： Bal e Ilgin S Atli O ergun B Sirmagul B 刘莉叶鹏

该研究旨在比较野百合碱诱导大鼠形成肺动脉高压过程中，性别差异对血流动力学的影响，同时评估抗氧化酶系统对野百合碱诱导的肺动脉高压发生的影响，以及性别对抗氧化酶系统的影响。方法：比较组间右心室压力（rightventricularpressu... 详细信息

该研究旨在比较野百合碱诱导大鼠形成肺动脉高压过程中，性别差异对血流动力学的影响，同时评估抗氧化酶系统对野百合碱诱导的肺动脉高压发生的影响，以及性别对抗氧化酶系统的影响。方法：比较组间右心室压力（rightventricularpressures，rVPs）及右心室和心脏质量的比值，测定大鼠肺和肝脏组织样本谷胱甘肽水平、超氧化物歧化酶（superoxidedis-mutase，SOD）、过氧化氢酶（catalase，CAT）和谷胱甘肽一孓转移酶（glutathione-S-transferase，GST）活性。结果：与对照组相比，

关键词：肺动脉高压野百合碱性别差异诱导大鼠抗氧化酶系统超氧化物歧化酶谷胱甘肽血流动力学

Maser radiation from collisionless shocks: application to astrophysical jets

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High Power Laser Science and engineering 2019年第1期7卷 120-127页

作者： D.C.Speirs K.ronald A.D.r.Phelps M.e.Koepke r.A.Cairns A.rigby F.Cruz r.M.G.M.Trines r.Bamford B.J.Kellett B.Albertazzi J.e.Cross F.Fraschetti P.Graham P.M.Kozlowski Y.Kuramitsu F.Miniati T.Morita M.Oliver B.reville Y.Sakawa S.Sarkar C.Spindloe M.Koenig L.O.Silva D.Q.Lamb P.Tzeferacos S.Lebedev G.Gregori r.Bingham Department of Physics SUPA University of Strathclyde Department of Physics West Virginia University School of Mathematics and Statistics University of St.Andrews Department of Physics University of Oxford GoLP/Instituto de Plasmas e Fus?u Nuclear Instituto Superior T'ecnico Universidade de Lisboa STFC rutherford Appleton Laboratory Laboratoire pour l’Utilisation de Lasers Intenses UMR7605 CNRS CEA Universit'e Paris VI Ecole Polytechnique Departments of Planetary Sciences and Astronomy University of Arizona AWe Aldermaston Reading West Berkshire Department of Physics National Central University Institute of Laser.e.gineering Osaka University School of Mathematics and Physics Queen’s University Belfast Department of Astronomy and Astrophysics University of Chicago Imperial College London

This paper describes a model of electron energization and cyclotron-maser.e.ission applicable to astrophysical magnetized collisionless shocks. It is motivated by the work of Begelman, ergun and r.e. [Astrophys. J. 625, 51(2005)] who argued that the cyclotron-maser instability occurs in localized magnetized collisionless shocks such as those expected in blazar jets. We report on recent research carr.e. out to investigate electron acceleration at collisionless shocks and maser radiation associated with the accelerated electrons. We describe how electrons accelerated by lower-hybrid waves at collisionless shocks generate cyclotron-maser radiation when the accelerated electrons move into regions of stronger magnetic fields. The electrons are accelerated along the magnetic field and magnetically compressed leading to the formation of an electron velocity distribution having a hor.e.hoe shape due to conservation of the electron magnetic moment. Under certain conditions the hor.e.hoe electron velocity distribution function is unstable to the cyclotron-maser instability [Bingham and Cairns, Phys. Plasmas 7, 3089(2000); Melrose, rev. Mod. Plasma Phys. 1, 5(2017)].

关键词： laboratory astrophysics plasma physics particle acceleration plasma-wave instabilities

玻璃体腔内注射曲安耐德治疗视网膜分支静脉阻塞引起的黄斑水肿:前导研究

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世界核心医学期刊文摘(眼科学分册) 2006年第3期 61-61页

作者： Krepler K ergun e Sacu S. 秦雪娇 Department of Ophthalmology Medical University of Vienna Waehringer Guer.e. 18-20 A-1090 Vienna Austria Dr.

Purpose: To evaluate treatment of macular oedema due to branch retinal vein occlusion (BrVO) with intravitreal triamcinolone acetonide. Methods: In a prospective case ser.e., nine patients with macular oedema due to BrVO received an intravitreal injection of 4 mg triamcinolone acetonide. examination included best-cor.e.ted visual acuity (BCVA) for distance and reading, intraocular pressure (IOP) measurement, fluorescein angiography and high resolution imaging by optical coherence tomography, preoperatively and at 1 week, 1 month, 3 and 6 months postoperatively. results: Preoperative mean BCVAs were 1.3 ±0.8 for distance vision, and 1.1 ±0.3 for reading acuity, respectively. A significant improvement in reading acuity was obser.e. until 1 month (0.7 ±0.4, p=0.02). No significant reduction in mean macular thickness was obser.e.. Conclusions: Intravitreal injection of triamcinolone acetonide led to a significant improvement in mean VA in patie nts with macular oedema due to BrVO. However, the significant effect was not permanent and persisted for only 1 month.

关键词：玻璃体腔内注射黄斑水肿视网膜疾病视网膜分支静脉阻塞曲安耐德