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电脑爱好者 2009年第21期 94-94页

作者： ul

最近随着Intel发布了酷睿i5/i7,ES版CpU又冒出不少,要知道相比于盒装的近四千元,i7870ES版仅需两千出头,价格确实很诱人。

关键词： CpU i5/i7 酷睿 Intel ES

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二茂铁基噻吩与3-己基噻吩共聚研究

二茂铁基噻吩与3-己基噻吩共聚研究

第十八届全国波谱学学术年会

作者： Hamad Khalid 俞豪杰王立 Muhammad Akram Nasir M.Abbasi Zain-ul-Abdin Muhammad Saleem 化学工程联合国家重点实验室化学工程与生物工程学系浙江大学化学工程联合国家重点实验室化学工程与生物工程学系

＜正＞聚噻吩的超共轭结构使其具有独特的光学和电学性能,在有机太阳能电池、场效应晶体管和有机电子学方面有很好的应用前景,最近数十年来获得研究者们的关注。二茂铁基由于其可逆的氧化还原性能在化学和生物传感器方面有着应用。有文...

＜正＞聚噻吩的超共轭结构使其具有独特的光学和电学性能,在有机太阳能电池、场效应晶体管和有机电子学方面有很好的应用前景,最近数十年来获得研究者们的关注。二茂铁基由于其可逆的氧化还原性能在化学和生物传感器方面有着应用。有文献报道了噻吩与二茂铁结合起来用作有机信息存储和化学传感器等。基于这两种基团的特性,我们合成了二茂铁基噻吩（TEF）,再选用反应条件简单温和的氧化聚合法将TEF与3-己基噻吩（3HT）共聚。噻吩环上2位与5位碳参与反应失去质子。聚合过程可由1H-MNR监控,观察噻吩环上质子的

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AMD发狠 5000+核变!

电脑爱好者 2009年第21期 94-94页

作者： ul

AMD总是喜欢爆出一点猛料,让消费者欢心买单,当初黑盒5000+解锁倍频,优异的超频性能热卖到脱销,如今借着45nm速龙IIX2系列抢夺不少市场,形势一片大好之下又放出一颗重磅炸弹,45nm版速龙双核5000+。

关键词： AMD nm ACC CpU 双核

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CT引导下经胸肺活检术的临床应用

山东医药 2019年第6期59卷 17-20页

作者： Nakib ul Alam 许芸李春海贾海鹏刘波孟红薛玉文山东大学齐鲁医院济南250012

目的观察CT引导下经胸肺活检(TNB)术的有效性及安全性,探讨提高CT引导下经胸肺活检成功率及减少并发症的策略。方法接受CT引导下TNB的患者共120例。TNB前认真分析受检患者的胸部CT影像,选择最佳穿刺点及穿刺路径,采用同轴套管针加活检... 详细信息

目的观察CT引导下经胸肺活检(TNB)术的有效性及安全性,探讨提高CT引导下经胸肺活检成功率及减少并发症的策略。方法接受CT引导下TNB的患者共120例。TNB前认真分析受检患者的胸部CT影像,选择最佳穿刺点及穿刺路径,采用同轴套管针加活检针穿刺,必要时借助人工气胸及联合pET-CT引导定位,分析穿刺成功率、诊断率及并发症,总结CT引导下经胸肺活检技术的操作要点。结果 120例受检患者共接受穿刺130次,接受1次穿刺者111例、2次穿刺者8例、3次穿刺者1例;穿刺成功127次,穿刺取材成功率97. 69%(127/130);穿刺后明确诊断119例,其中肺癌82例、结核9例、非特异性炎症9例、机化性肺炎6例、真菌性肺炎4例、血管炎4例、结节病2例、淋巴瘤2例、嗜酸粒细胞性肺炎1例,诊断率99. 17%(119/120);取材成功直径pET-CT引导定位再次经胸肺活检,均确诊为肺癌; 120例受检患者中,发生并发症24例(20. 00%),其中气胸11例、咯血8例、胸膜腔感染2例、胸膜腔出血2例,无致命性并发症发生。结论 CT引导下TNB诊断的准确性及安全性均高。其技术要点包括活检前根据受检患者的胸部CT影像选择最佳穿刺点及穿刺路径,尽量避开血管、肺大疱;采用同轴套管针加活检针穿刺;对于较分散或临近心脏大血管病变,可借助人工气胸使病变易于穿刺;对合并炎症的肿瘤性病变可联合pET-CT引导定位。

关键词：肺活检术经胸肺活检术 CT引导下经胸肺活检术人工气胸正电子发射计算机断层显像技术

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Spectroscopic and structural properties of MgAl_2O_4:Nd^(3+) nanopowders and ceramics

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Journal of Rare Earths 2014年第3期32卷 265-268页

作者： K.Lemański p.J.Dereń W.Walerczyk W.Strekv R.Boulesteix R.Epherre A.Matre Institute of Low Temperature and Structure Research Polish Academy of Science ul.Okólna 2 50-422 Wroc?aw Poland University of Limoges SPCTS UMR CNRS 7315 12 Rue Atlantis 87068 Limoges Cedex France

The structural and spectroscopic properties of MgAl2O4：1%Nd3＋ spinel nanocrystals and ceramics were measured and ana-lyzed. Ceramics were prepared from the above mentioned spinel nanocrystals and undoped commercial spinel powder, using the spark plasma sintering （SpS） method. properties of the obtained ceramics strongly depended on the SpS conditions. The samples were not homogeneous and possessed defects and pores. The most transparent ceramics had 60% transparency at 1000 nm.

关键词： SpS spinel spectroscopy neodymium ceramic rare earths

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Level of Stress, predisposing Factors and Status of Mental Health among pharmacy Students of a private University of Dhaka, Bangladesh: A Cross Sectional Study

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Health 2019年第2期11卷 222-232页

作者： A. H. M. Nazmul Hasan Md. Anzam ul Islam Smaranika Rahman Zobaida Mostarin Nishi Md. Jakir Hossain Md. Zobayer Hossain Gorapi Farhan Jamil Md. Abu Sufian Zabun Nahar Kanij Nahar Deepa Md. Hamiduzzaman Md. Asaduzzaman Mohiuddin Ahmed Bhuiyan Department of pharmacy University of Asia Pacific Dhaka Bangladesh

Stress during tertiary educational period has significant negative effect on the performance of a student. Mental distress is increasing among students and is one of the important public health concerns. This study was carried out to investigate the socio demographic characteristics of students, level of their stress feeling, and status of mental health and to find out the co-relation of different factors associated with the level of stress feelings. A cross sectional study was conducted among the students of the Department of pharmacy of UAp. A total of 504 students (181 male students and 323 female students) participated in this study. Feeling of severe stress was almost equal to both sexes. But, moderate level of stress was more associated with female students (N = 253, F = 78.33%) and overall female students were more stressful than male. Thought towards future career ranked one among many reasons of stress in students (59.67% for male students and 37.46% for female students). In terms of academic achievements, feeling of stress was higher in female students compared to male students (34.98% for female students vs. 15.47% for male students). Other factors such as unrealistic expectations, family relationship and affairs, socio economic condition, being of too busy also significantly participate in the development of stress in young mind. Mental health status was estimated by considering some facts such as state of shock due to unwanted life events, lacking of expression of emotions, reduced feeling of pleasure, unusual thinking, fear of any specific objects, short term memory loss, self identity disorder and lack of self confidence. We co-related different risk factors like age, gender, socio-economic condition, unrealistic thought patter to different levels of stress feeling. Feelings of stress were most among the student of 21 - 25 years of age. Socio-economic condition is always a great factor of stress, middle class society has more stress compared to other

关键词： Stress Factors of Stress Mental Health

Gate leakage current of a double gate n-MOS on （111） silicon-a quantum mechanical study

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材料科学与工程（中英文版） 2008年第10期2卷 1-5页

作者： Sabbir AHMED Ahsan ul ALAM md. Kawsar ALAM Quazi Deen Mohd KHOSRU Department of Electrical and Electronic Engineering Bangladesh University of Engineering and Technology Dhaka-1000 Bangladesh

Large spatial shifts of reflected light beam off biaxial hyperbolic materials

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Chinese physics B 2023年第11期32卷 465-471页

作者：沈加国哈思内恩宋浩元周胜付淑芳王选章王暄张强 Key Laboratory for photonic and Electronic Bandgap Materials Chinese Ministry of Educationand School of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025China School of Integrated Circuits Engineering Research Center for Functional CeramicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430030China Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationHarbin University of Science and TechnologyHarbin 150080China

Many optical systems that deal with polarization rely on the adaptability of controlling light reflection in the lithography-free nanostructure. In this study, we explore the Goos–H?nchen(GH) shift and Imbert–Fedorov(IF) shift in a biaxial hyperbolic film on a uniaxial hyperbolic substrate. This research statistically calculates and analyzes the GH shift and IF shift for the natural biaxial hyperbolic material(NBHM). We select the surface with the strongest anisotropy within the NBHM and obtain the complex beam-shift spectrum. By incorporating the NBHM film, the GH shift caused by a transversely magnetic incident-beam on the surface increases significantly compared with that on the uniaxial hyperbolic material. The maximum of GH shift can reach 86 λ0at about 841 cm-1when the thickness of NBHM is 90 nm, and the IF shift can approach 2.7 λ0for a circularly-polarized beam incident on a 1700-nm-thick NBHM. It is found that the spatialshift increases when a highly anisotropic hyperbolic polariton is excited in hyperbolic material, where the shift spectrum exhibits an oscillating behaviour accompanied with sharp shift peak(steep slope). This large spatial shift may provide an alternative strategy to develop novel sub-micrometric optical devices and biosensors.

关键词： Goos-Hanchen shift Imbert-Fedorov shift α-MoO_(3)

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Advances in the Restoration and Fixation of Lateral Femoral Wall Fracture

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proceedings of Anticancer Research 2023年第1期7卷 30-40页

作者： Muhammad Atta ul Mustafa Shang Li Shaher Bano Md.Moneruzzaman Bing Ning Jinan Central Hospital Shandong UniversityJinan 250013Shandong ProvinceChina Department of Rehabilitation Medicine and physical Therapy Qilu Hospital of Shandong UniversityJinan 250012Shandong ProvinceChina

Hip fractures,especially intertrochanteric fractures,are more common with *** decades of progress,it is a general consensus to carry out internal fixation for this group of ***,the recent focus is on unstable intertrochanteric fractures to ensure better prognosis and prevent internal fixation *** lateral femoral wall,as a novel concept,is often *** scholars have recognized that the lateral wall of the proximal femoral plays a crucial role in the stability of internal fixation for intertrochanteric *** this paper,the historical evolution,definition,clinical significance,injury classification,choice of internal fixation,and possible prognosis of lateral femoral wall fracture are reviewed in order to provide clinicians strong evidence of treatment strategies.

关键词： Intertrochanteric fracture Lateral femoral wall Hip fracture Surgery