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radiological Hazards for Marble and Granite Used at Shak El Thouban Industrial Zone in Egypt

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Journal of Environmental Protection 2013年第12期4卷 41-48页

作者： Amany T. Sroor Saher M. Darwish Samia M. El-Bahi Mohamed G. abdel Karim Nuclear Physics Laboratory Faculty of Girls Ain Shams University Cairo Egypt Physics Department Faculty of Science Cairo University Giza Egypt

The background level of radiation in the natural environment surrounds us at all times. Levels of natural occurring radioactivity in marble and granite used at Shak El Thouban industrial zone in Cairo, Egypt have been investigated using HPGe detector through gamma-ray spectrometry. The activity concentration of radionuclides in the 238U-, 232Th-series and 40K has been determined. The average activity concentration of 238U, 232Th and 40K for marble samples was 23.77 Bq/kg ranged from (10.91 to 45.4), 10.75 Bq/kg ranged from (5.46 to 23.61) and 520.43 Bq/kg ranged from (382.30 to 1132.41), respectively. The 238U, 232Th and 40K activity concentration for granite samples were 54.31 Bq/kg ranged from (12.04 to 106.34), 113.57 Bq/kg ranged from (23.91 to 270.36) and 7867.51 Bq/kg ranged from (2017.60 to 11436.91), respectively. Concerning the radiological risk, the radium equivalent activity, external and internal radiation hazard indices, the radiation level index and absorbed dose rate were evaluated. The mass exhalation rates of 222Rn and emanation coefficient have been also calculated. The mass exhalation rate of radon was found to be from 14.86 to 137.13 and 16.48 to 155.26 μBq/kg·s for marble and granite samples, respectively. The mean values of the specific activity of 226ra, activity of 238U before and after sealing time and the mass exhalation rate of radon for granite samples are twice that for marble samples. All radiological indices and the mass exhalation rate of radon are lower than the permissible levels for building material in all marble samples, while all granite samples are higher and unsafe and pose a risk to the workers and users of these products due to the emanation of radon that may accumulate by time, especially in closed spaces.

关键词： radiological Hazards Marble Granite HPGe Detector Shak El Thouban

检测抗聚丝蛋白抗体在类风湿关节炎诊断中的意义

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基础医学与临床 2007年第9期27卷 1053-1056页

作者：艾脉兴冷晓梅曾小峰卫生部中日友好医院风湿免疫科北京100029 中国医学科学院中国协和医科大学北京协和医院风湿免疫科北京100730

目的探讨抗聚丝蛋白抗体(AFA)对类风湿关节炎(ra)诊断的价值,并比较与ra的其他早期诊断指标的相关性。方法从人表皮细胞中提取并部分纯化聚丝蛋白(filaggrin)抗原,用于免疫印迹检测(Western blot)103例ra血清标本和140例对照血清,包括... 详细信息

目的探讨抗聚丝蛋白抗体(AFA)对类风湿关节炎(ra)诊断的价值,并比较与ra的其他早期诊断指标的相关性。方法从人表皮细胞中提取并部分纯化聚丝蛋白(filaggrin)抗原,用于免疫印迹检测(Western blot)103例ra血清标本和140例对照血清,包括系统性红斑狼疮(SLE)、干燥综合征(SS)、骨性关节炎(OA)95份及正常人45份。APF和AKA用间接免疫荧光法检测。结果103例ra病人的AFA阳性率、特异性分别为35.9%,93.7%,显著高于疾病对照组和正常人(Pra具有很高的特异性。AFA的检测可用于ra的临床诊断。AFA与APF及AKA有相关性,但不能完全取代它们的检测。

关键词：类风湿关节炎抗聚丝蛋白抗体抗核周因子抗角蛋白抗体

Outcomes and Prognostic Factors of Small Cell Lung Cancer: A Retrospective Study

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Advances in Lung Cancer 2018年第3期7卷 21-31页

作者： Hanan Ahmed Wahba Hend Ahmed El-Hadaad Abeer Hussein Anter Magda abdel-Salam Ahmad Hayam Fathy Abd-El Hay Ghazy Faculty of Medicine Mansoura University Hospital Mansoura Egypt Chest Medicine Department Mansoura University Hospital Faculty of Medicine Mansoura Egypt Medical Oncology Department Mansoura Oncology Center Faculty of Medicine Mansoura Egypt

Background: Small cell lung cancer (SCLC) is a high grade neuroendocrine tumor, and has aggressive nature, so the majority of cases are presented with extensive disease. SCLC was staged into 2 categories: limited-stage disease (LS-SCLC) and extensive disease (ES-SCLC). Despite SCLC is sensitive to ra-diotherapy and chemotherapy, SCLC has high tendency for rapid dissemina-tion to regional and distant sites. Median survival time ranged from 2 - 4 months in patients with untreated SCLC. Multiagent chemotherapy was the primary treatment for SCLC. Aim of the work: This retrospective study was conducted to evaluate and analyze clinical features, treatment outcome, sur-vival and prognostic factors affecting survival in patients with SCLC presented to Clinical Oncology and Nuclear Medicine department, Chest department and Medical oncology unit in Mansoura Oncology Centre during the period from 2000-2015. Methods: Data of patients were collected from their files. The information obtained included demographic features, treatment received;its toxicity and outcome, survival and its prognostic factors. Demographic data were: age, Eastern Cooperative Oncology Group Performance Status (ECOG-PS), smoking status, stage of disease. Data also included disease presentation and metastatic sites. Several factors affecting survival were analysed as age, sex, stage, PS, smoking status and LDH. Results: Sixty-three patients were enrolled in this study. Median age was 56.2 ± 6. Strong male predominance (92.1%) was observed;84.1% of them were smoker. Thirty six patients (57.2%) were of ECOG-PS of 0 - 1. ES-SCLC was reported in 65% of cases and LDH was high (>1.5 xN) in 47.6%. The most common symptom was chest pain (38.1%) followed by cough (31.8%), weight loss (30%). Fifteen patients had single metastatic site (23.8%) and bone was the most common site of metastasis (reported in 8 patients) followed by brain, lung and liver. 2-year overall survival rate was 35% with median survival time of 14

关键词： SCLC Lung Cancer LS-SCLC ES-SCLC

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采用卷积神经网络的双频功分器优化设计

压电与声光 2023年第1期45卷 158-164页

作者：孙思悦周文颖逯迈兰州交通大学光电技术与智能控制教育部重点实验室甘肃兰州730000

功率分配器(简称功分器)作为微波电路中常用的射频器件,是构建5G系统多输入多输出(MIMO)馈电网络的重要组成单元。为了对已有固定频率的功分器结构进行重新快速地优化设计,以适用于包括5G工作频段在内的任意实际所需的工作频段,该文以... 详细信息

功率分配器(简称功分器)作为微波电路中常用的射频器件,是构建5G系统多输入多输出(MIMO)馈电网络的重要组成单元。为了对已有固定频率的功分器结构进行重新快速地优化设计,以适用于包括5G工作频段在内的任意实际所需的工作频段,该文以预先设计的一种双频功分器作为优化设计目标,提出了一种基于改进后的一维卷积神经网络的深度学习方案。预测功分器在其他任意双谐振频率处拥有良好性能的几何结构参数,运用自组织映射神经网络进行样本的选取,提高卷积神经网络的训练效率。预测出的功分器在电磁仿真软件中进行验证,仿真结果显示功分器在工作频率处的回波损耗高于20 dB,隔离度高于25 dB,插入损耗低于3.4 dB,工作带宽约为450~600 MHz,证明了利用神经网络实现多参数目标功分器的优化设计是一种快速有效的方法。

关键词：双频功分器卷积神经网络自组织映射神经网络多参数目标优化

计算机辅助游离腓骨下颌骨重建的术后效果评估

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华西口腔医学杂志 2022年第2期40卷 189-196页

作者：康泽标买晓雪王鑫谢富强兰州大学口腔医学院口腔颌面外科教研室兰州730000 兰州大学第二医院口腔科兰州730000

目的建立一种标准化、可重复、简易的数字化评估方法,精确评估计算机辅助游离腓骨下颌骨重建术后效果。方法通过对20例因肿瘤致下颌骨缺损后行计算机辅助游离腓骨下颌骨重建手术病例的回顾性分析,在Mimics Research 21.0及3-matic Resea... 详细信息

目的建立一种标准化、可重复、简易的数字化评估方法,精确评估计算机辅助游离腓骨下颌骨重建术后效果。方法通过对20例因肿瘤致下颌骨缺损后行计算机辅助游离腓骨下颌骨重建手术病例的回顾性分析,在Mimics Research 21.0及3-matic Research 13.0软件辅助下对重建术前与术后冠状向、矢状向与轴向下颌角进行测量分析,评估计算机辅助游离腓骨下颌骨重建术后效果。结果在计算机辅助游离腓骨下颌骨重建的20例患者中,术前健侧和患侧冠状下颌角、轴向下颌角差异无统计学意义(P>0.05),矢状下颌角差异有统计学意义(P0.05)。术前与术后健侧和患侧冠状、矢状、轴向下颌角差值的绝对值差异有统计学意义(P0.05)。Ⅰ类缺损术前与术后健侧和患侧矢状、冠状下颌角差值的绝对值差异无统计学意义(P>0.05),其余各类缺损术前与术后健侧和患侧三维下颌角差值的绝对值差异均有统计学意义(P<0.05)。结论计算机辅助游离腓骨下颌骨重建对于肿瘤造成的三维方向的颌骨畸形均有显著的改善,能有效恢复下颌骨解剖结构的精确对称,应用本研究的评估方法能精确地评估下颌骨重建术后效果,为术前的设计提供指导。

关键词：下颌骨重建计算机辅助手术精确度游离腓骨皮瓣

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卟啉/酞菁光电材料分子电场调控

中国科学：化学 2022年第8期52卷 1341-1356页

作者：穆希皎买嗣备李丛平曹靖功能有机分子化学国家重点实验室甘肃省有色金属化学与资源利用重点实验室兰州大学化学化工学院兰州730000

卟啉/酞菁是一类高度共轭的杂环化合物,如何实现光电性质的精准调控是推动其光电应用的关键.分子电场是分子偶极或者分子晶体中偶极在分子或晶体内部引发的一种局域电场.对分子电场的调变相当于改变了分子或晶体的固有偶极,进而影响材... 详细信息

卟啉/酞菁是一类高度共轭的杂环化合物,如何实现光电性质的精准调控是推动其光电应用的关键.分子电场是分子偶极或者分子晶体中偶极在分子或晶体内部引发的一种局域电场.对分子电场的调变相当于改变了分子或晶体的固有偶极,进而影响材料的载流子传输及光学性质,因此分子电场优化是调控材料光电性能的一种有效方法.本文阐述了分子偶极与分子电场的关系,综述了卟啉/酞菁分子电场调控其光电性能的研究工作,并介绍了本课题组发展的分子电场有效调控电荷传输行为的研究工作,阐明了分子电场对光电材料电荷分离传输及光学性质调变机制,对新型卟啉/酞菁光电材料理性设计提供了全新的研究思路.

关键词：卟啉酞菁光电材料分子电场光电应用

基于TRIZ-AD的集成式油菜气力精量排种装置设计

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农业工程学报 2023年第14期39卷 49-59页

作者：郑娟廖宜涛廖庆喜王磊施彬彬孙迈华中农业大学工学院武汉430070 农业农村部长江中下游农业装备重点实验室武汉430070

针对现有气力式播种机排种装置的传动和供气系统复杂、机械结构无法适配智能变量作业、气力供给风压消耗大且稳定性差等问题,该研究应用发明问题解决理论(theory of inventive problem solving,TRIZ)与公理化设计(axiomatic design theo... 详细信息

针对现有气力式播种机排种装置的传动和供气系统复杂、机械结构无法适配智能变量作业、气力供给风压消耗大且稳定性差等问题,该研究应用发明问题解决理论(theory of inventive problem solving,TRIZ)与公理化设计(axiomatic design theory,AD)方法,开展油菜气力精量排种装置设计。首先使用TRIZ技术成熟度预测和进化定律分析,阐明了排种技术发展阶段和进化路径及潜力;其次建立基于TRIZ和AD集成的设计过程模型,求解时在功能域到结构域映射过程中引入TRIZ工具,采用“冲突解决原理”解决现有排种装置中涉及的传动系统、供气系统矛盾冲突,分析对改善结构参数有用的发明原理和对应的方案,最终确定电机直接驱动排种盘和风机内置气室的解决方案,构造并求解其原始设计矩阵,并通过独立公理和信息公理判断该解决方案的合理性及最优化。最后进行电机风机集成式油菜气力精量排种装置设计,确定电机风机同侧排布技术方案,集成电机驱动简化传动,集成风机取消输气管道降低风压损失。台架试验结果表明,设计的集成式排种器排种性能满足油菜单粒排种要求,吸种负压绝对值取1.0~2.0 kPa、作业速度小于7 km/h时,排种合格指数均大于90%,且合格指数达到90%需要的风压低于现有排种装置风机和输气管道布局所需风压。本研究可为气力式排种器设计提供思路和参考。

关键词：农业机械播种机精量排种风机集成 TRIZ AD 技术矛盾

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An online resource for marine fungi

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Fungal Diversity 2019年第3期96卷 347-433页

作者： E.B.Gareth Jones Ka-Lai Pang Mohamed A.abdel-Wahab Bettina Scholz Kevin D.Hyde Teun Boekhout rainer Ebel Mostafa E.rateb Linda Henderson Jariya Sakayaroj Satinee Suetrong Monika C.Dayarathne Vinit Kumar Seshagiri raghukumar K.R.Sridhar Ali H.A.Bahkali Frank H.Gleason Chada Norphanphoun Deptartment of Botany and Microbiology College of ScienceKing Saud UniversityP.O Box 2455Riyadh 11451Kingdom of Saudi Arabia Hampshire UK Institute of Marine Biology and Centre of Excellence for the Oceans Taiwan Ocean University2 Pei-Ning RoadKeelung 20224TaiwanChina Department of Botany and Microbiology Faculty of ScienceSohag UniversitySohag 82524Egypt BioPol ehf Marine BiotechnologyEinbuastig 2545 SkagastrondIceland Center of Excellence in Fungal Diversity Mae Fah Luang University 333 M.1 ThasudMuang Chiang RaiChiang Rai 57100Thailand Westerdijk Fungal Biodiversity Institute Uppsalalaan 8UtrechtThe Netherlands Institute of Biodiversity and Ecological Dynamics(IBED) University of AmsterdamAmsterdamThe Netherlands Department of Chemistry Marine Biodiscovery CentreUniversity of AberdeenAberdeen AB243UEUK School of Computing Engineering&Physical SciencesUniversity of the West of ScotlandPaisley PA12BEUK School of Life and Environmental Sciences University of SydneyMacleay Building A12SydneyNSW 2006Australia School of Science Walailak University222 ThaiburiThasala DistrictNakhon Si Thammarat 80161Thailand Fungal Biodiversity Laboratory(BFBD) National Center for Genetic Engineering and Biotechnology(BIOTEC)113 Thailand Science ParkPhaholyothin RoadKhlong NuengKhlong LuangPathum Thani 12120Thailand Tamra' 313(Plot No.162)Vainguinnim ValleyDona PaulaGoa 403004India Department of Biosciences Mangalore UniversityMangaloreKarnatakaIndia School of Life and Environmental Sciences University of SydneySydneyNSW 2006Australia Department of Entomology and Plant Pathology Faculty of AgricultureChiang Mai UniversityHuay Keaw RoadSuthepMuang DistrictChiang Mai 50200Thailand

Index Fungorum,Species Fungorum and MycoBank are the key fungal nomenclature and taxonomic databases that can be sourced to find taxonomic details concerning fungi,while DNA sequence data can be sourced from the NCBI,EBI and UNITE *** and ecological data on freshwater fungi can be accessed on http://***/,while http://***/provides a comprehensive list of names of marine organisms,including information on their *** websites however have little information on marine fungi and their ecology,beside articles that deal with marine fungi,especially those published in the nineteenth and early twentieth centuries may not be accessible to those working in third world *** address this problem,a new website *** was set up and is introduced in this *** website provides a search facility to genera of marine fungi,full species descriptions,key to species and illustrations,an up to date classification of all recorded marine fungi which includes all fungal groups(Ascomycota,Basidiomycota,Blastocladiomycota,Chytridiomycota,Mucoromycota and fungus-like organisms ***),and listing recent ***,1257 species are listed in the marine fungi website(***),in 539 genera,74 orders,168 families,20 classes and five phyla,with new taxa continuing to be *** website has curators with specialist mycological expertise who help to provide update data on the classification of marine *** article also reviews knowledge of marine fungi covering a wide range of topics:their higher classification,ecology and world distribution,role in energy transfer in the oceans,origin and new chemical *** updated classification of marine fungi is also *** would like to invite all mycologists to contribute to this innovative website.

关键词： Fungal classification marine fungi website High-throughput sequencing techniques Fungal diversity Origin of marine fungi

鸡肉肌苷酸和肌内脂肪等肉品风味性状遗传参数的估计

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遗传 2005年第6期27卷 898-902页

作者：陈继兰文杰赵桂苹郑麦青杨宁中国农业科学院畜牧研究所北京100094 中国农业大学动物科技学院北京100094

对鸡肉肌苷酸(Inosine-5′-Monophosphate,IMP)和肌内脂肪(Intramuscular fat,IMF)等重要肉品风味性状的遗传参数进行了估计,旨在从遗传理论上为确定鸡肉风味品质性状的选育方法提供依据.采用MTDFREML方法对1069只90日龄北京油鸡公鸡的... 详细信息

对鸡肉肌苷酸(Inosine-5′-Monophosphate,IMP)和肌内脂肪(Intramuscular fat,IMF)等重要肉品风味性状的遗传参数进行了估计,旨在从遗传理论上为确定鸡肉风味品质性状的选育方法提供依据.采用MTDFREML方法对1069只90日龄北京油鸡公鸡的相关性状的遗传力和遗传相关进行了估计,结果表明,胸肌IMP和IMF含量属中等偏低遗传力性状(h2=0.23,0.10),腹脂重(AFW)、胸肌重(BMY)、胸肌率(BMR)、腿肌重(LMY)、体重(BW)、鸡冠重(CW)和鸡冠率(CWP)的遗传力较高(h2=0.56～0.79),腹脂率(AFP)、腿肌率(LMR)、睾丸重(TW)和睾丸率(TWP)等性状的遗传力分别为0 24、0.32、0.39和0 ***与胸肌率、腿肌率和尾脂厚呈较低度的表型正相关,与其他性状无明显表型相关;IMF与体重、腹脂率、尾脂厚和脂带宽呈一定程度的表型正相关(rP=0.11～0.33).IMP与体重和鸡冠率呈中等以上程度的遗传负相关(ra=-0.38,-0.62),与胸肌率呈较高水平的遗传正相关(ra=0.57);IMF与体重和腹脂重则呈高度遗传正相关(ra=0.75,0.66),与腹脂率和鸡冠率呈中等水平遗传正相关(ra=0.32,0.40);IMP与IMF之间呈中低水平的遗传正相关(ra=0.27).据此推断,可以利用家系法对IMP和IMF含量进行选择提高.

关键词：鸡肉肌苷酸肌内脂肪遗传参数