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Functionalized C,N-Bipyrazole Receptor Grafted onto Silica Surface for Arsenic Adsorption and Its Antibacterial Activity

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American Journal of Analytical Chemistry 2019年第1期10卷 38-53页

作者： Ahmad Abu Obaid Motasem Al-Masri abdalhadi Deghles Nagham Taha Shehdeh Jodeh radi Smail An-Najah National University Nablus Palestine Al-Istiqlal University Jericho Palestine University Mohamed Premier Oujda Morocco

The present study is based on the investigation of performance of C,N-bipyrazole receptor grafted onto silica surface (SG2P) of adsorption Arsenic (AS) from aqueous solutions. The effects of operating parameters that include pH, contact time, concentration of As and dosage of adsorbent on adsorption were accomplished. The results clearly showed that the removal efficiency of As was decreased with an increasing of As concentration, pH, and temperature, while it was continuously increasing with time and adsorbent dose. Moreover, the removal efficiency of Cr (VI) adsorption was 75% corresponding to pH;temperature (°C), initial concentration (ppm) and weight of dose (g) were 6, 25, and 0.04 respectively at 24 hours. The adsorption capacity of the synthesized sorbent (SG2P) for arsenic at pH Escherichia coli (ATCC25922) and Staphylococcus aureus (ATCC25932) were as a reference strains, while, the SG2P was able to inhibit growth only at high concentration (MIC = 1.5625 mg/ml).

关键词： Antimicrobial Activity Arsenic Adsorption Pseudo Second Order Escherichia coli

超声乳化联合囊袋内可调节人工晶状体植入术对白内障患者对比敏感度视觉影响研究

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中国全科医学 2013年第1期16卷 53-54,58页

作者： Luay radi Hasan Tayeh 陈伟蓉林振德中山大学中山眼科中心广东省广州市510060

目的探讨超声乳化联合囊袋内可调节人工晶状体植入术对白内障患者对比敏感度视觉恢复的影响,并分析相关机制。方法回顾性分析2009年1月—2010年12月在我院住院治疗的78例(96只眼)白内障患者。其中38例46只眼行超声乳化联合囊袋内可调节... 详细信息

目的探讨超声乳化联合囊袋内可调节人工晶状体植入术对白内障患者对比敏感度视觉恢复的影响,并分析相关机制。方法回顾性分析2009年1月—2010年12月在我院住院治疗的78例(96只眼)白内障患者。其中38例46只眼行超声乳化联合囊袋内可调节人工晶状体植入术(为研究组),40例50只眼行白内障超声乳化联合囊袋内硬性人工晶状体植入术(为对照组)。观察两组患者术后3个月矫正远、近视力,屈光度数,对比敏感度的变化以及并发症数量。结果两组治疗后矫正近、远视力差异均无统计学意义(P>0.05);对比敏感度视觉检查结果显示,研究组有32例34只眼对比敏感度曲线在参考范围内;对照组29例32只眼对比敏感度曲线在正常范围内。研究组在高频段对比敏感度与对照组相比差异有统计学意义(P<0.05)。对照组与研究组比较虹膜色素播散(13.15%vs.7.50%)、角膜内皮褶皱(18.42%vs.10.00%)、瞳孔变形(18.42%vs.5.00%)、角膜水肿(23.68%vs.7.50%)、前房纤维性渗出(21.05%vs.5.00%)发生率间差异均有统计学意义(P<0.05)。结论超声乳化联合囊袋内可调节人工晶状体植入术对白内障患者对比敏感度视觉具有一定调节作用,且并发症少。

关键词：超声乳化术可调节人工晶状体对比敏感度

Stress Analysis of Bolted Joints Part II. Contact and Slip Analysis of a Four Bolt Joint

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Modern Mechanical Engineering 2014年第1期4卷 46-55页

作者： László Molnár Károly Váradi János Holubán Andor Tamási Department of Machine and Product Design Budapest University of Technology and Economics Budapest Hungary

For up-to-date bolted joints, first of all in vehicles, high strength bolts of 10.9 or even 12.9 are used, which are preloaded up to 90% or even 100% of the yield strength. The primary aim of this high degree utilization is the weight reduction. For the analytic dimensioning of bolted joints, the VDI 2230 Richtlinien German standard [1] provides support. However, the analytic model can mostly consider the true structural characteristics only in a limited way. The analytic modeling is especially uncertain in case of multiple bolted joints when the load distribution among the bolts depends reasonably upon the elastic deformation of the participating elements in the joints over the geometry of the bolted joint. The first part of this paper deals with the problems of numerical modeling and stress analysis, respectively specifying the analytic dimensioning procedure by applying elastic or rather elastic-plastic material law. The error magnitude in bolted joint calculation was examined in case of omitting the existing threaded connection—between the bolt and the nut—in order to simplify the model. The second part of the paper deals with the dimensioning of stands and cantilevers’ multi-bolt fixing problems, first of all, with the load distribution among the bolts keeping in view the analysis of the local slipping relations. For demonstrating the above technique, an elaborated numeric procedure is presented for a four-bolted cantilever, having bolted joints pre-tightened to the yield strength.

关键词： Bolted Joints Numerical Modeling Stress Analysis

New Polysiloxane Surfaces Modified with Ortho-, Meta-, or Para-Nitrophenyl Moieties for Cadmium Removal from Water

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Journal of Surface Engineered Materials and Advanced Technology 2016年第2期6卷 18-35页

作者： Shehdeh Jodeh Bayan Khalaf Smaail radi Said Tighadouini Rachid Salghi Sobhi Samhan Ismail Warad Diana Jodeh Department of Chemistry An-Najah National University Nablus Palestine Laboratoire de Chimie Appliquée et Environnement Oujda Morocco Laboratory of Materials and Environment University Ibn Zohr Agadir Morocco Palestine Authority of Water Ramallah Palestine Department of Medicine An-Najah National University Nablus Palestine

This study aims to prepare and develop several vehicles chelation polydentate supported ligands and then installed it using sol-gel or polymerization or to be susceptible to imply conjunction with the highly toxic heavy metal ions in the water, and disrupted the underground water used for drinking or agriculture, including cadmium ions. As the process of interaction between ligands and heavy metals depends on the circumstances of surrounding conditions which are treated in this research. Metal ion uptake through complexation or hydrogels can be affected by hydrophilic-hydrophobic balance, the nature of chelate ligands and the extent of cross-linking of macromolecular supports. Ligand function also dictates reactivity, complexation ability and efficiency of polymer supported ligands in the present case expected to be good solution for such problem. This research involves the synthesis and characterization of new polysiloxane surfaces modified with ortho-, meta-, or para-nitrophenyl moieties. The resulting adsorbents have been characterized by SEM, IR, UV, 13C solid state NMR, BET surface area, B.J.H. pore sizes, TGA and nitrogen adsorption-desorption isotherm. These porous materials showed a very good thermal and chemical stability and hence they can be used as perfect adsorbents to uptake toxic heavy metal ions including Cd(II) from groundwater. The concentrations of each adsorbate in the filtrate were determined using Atomic Absorption Spectrophotometer. The results showed that all of the three resulting products had high adsorption efficiency. Also, it showed strong complexation properties with heavy metal ions.

关键词： Groundwater Adsorption Isotherm Desorption Heavy Metals Kinetics

Modeling and Simulation for High Energy Sub-Nuclear Interactions Using Evolutionary Computation Technique

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Journal of Applied Mathematics and Physics 2016年第1期4卷 53-65页

作者： Mahmoud Y. El-Bakry El-Sayed A. El-Dahshan Amr radi Mohamed Tantawy Moaaz A. Moussa Department of Physics Faculty of Sciences Ain Shams University Cairo Egypt Egyptian E-Learning University Giza Egypt Department of Physics Faculty of Education Ain Shams University Cairo Egypt The British University in Egypt (BUE) Cairo Egypt Buraydah Colleges East Qassim University Buraydah KSA

High energy sub-nuclear interactions are a good tool to dive deeply in the core of the particles to recognize their structures and the forces governed. The current article focuses on using one of the evolutionary computation techniques, the so-called genetic programming (GP), to model the hadron nucleus (h-A) interactions through discovering functions. In this article, GP is used to simulate the rapidity distribution of total charged, positive and negative pions for p--Ar and p--Xe interactions at 200 GeV/c and charged particles for p-pb collision at 5.02 TeV. We have done so many runs to select the best runs of the GP program and finally obtained the rapidity distribution as a function of the lab momentum , mass number (A) and the number of particles per unit solid angle (Y). In all cases studied, we compared our seven discovered functions produced by GP technique with the corresponding experimental data and the excellent matching was so clear.

关键词： Modeling Simulation Evolutionary Computation Genetic Programming Hadron-Nucleus Interaction Rapidity Distribution

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连续排放物监测系统的选择

石化译文 1994年第4期 74-76页

作者： radi.,MJ 李京妮

苏丹患者200例行前单瓣外路泪囊鼻腔吻合术的研究(英文)

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国际眼科杂志 2008年第8期8卷 1518-1520页

作者： Kamal Hashim Bennawi Nadir Ali Mohamed Ali Ehab Yusri Subhi Al-Sirhy Nabila radi Elias 喀土穆眼科教学医院眼整形科门诊联邦卫生部国家防盲计划办公室

目的：介绍苏丹患者实施前单瓣外路泪囊鼻腔吻合术的手术效果。方法：我们对两百个接受了前单瓣外路泪囊鼻腔吻合术并有至少1a随访的连续病例的临床资料进行回顾性分析。手术是由同一名医生即第一作者施行的,患者在术后随访1a。1a后出... 详细信息

目的：介绍苏丹患者实施前单瓣外路泪囊鼻腔吻合术的手术效果。方法：我们对两百个接受了前单瓣外路泪囊鼻腔吻合术并有至少1a随访的连续病例的临床资料进行回顾性分析。手术是由同一名医生即第一作者施行的,患者在术后随访1a。1a后出现泪溢且探通冲洗无效视作手术失败。结果：本研究样本中患者的平均年龄为29.7a（范围：4-65a）。男女性别比例为1∶2。手术成功率是98%。有4例患者报告手术失败,其中两例是外伤性患者,有先前存在的眼眶畸形。结论：此研究进一步证实了前单瓣外路泪囊鼻腔吻合术的有效性。尽管这种手术技巧更加简易,其成功率与文献报道的传统手术方法的成功率具有可比性。

关键词：泪囊鼻腔吻合术外路手术技巧成功率

使用OCT评估多发性硬化症分期及其严重性（英文）

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国际眼科杂志 2018年第12期18卷 2132-2136页

作者： Yoav Yechezkel Pikkel Muneer Abu Sneina Vadim Igal Yael Sara Pikkel Igal Adi Nov-Sharabi Ayelet Armon-Omer radi Shahien Joseph Pikkel Carmel医疗中心以色列海法3436212 Ziv医疗中心、神经病学科以色列采法特13100 Bar Ilan大学以色列采法特13100 Tel-Hai学院以色列1220800 Ziv医疗中心、研究部门以色列采法特13100 Bar Ilan大学医学院以色列采法特13100 Ziv医疗中心、眼科以色列采法特13100

目的:评估光学相干层析成像(OCT)、多发性硬化病程(MS)和扩展伤残状态等级(EDSS)之间的联系。方法:前瞻性双盲研究。29例多发性硬化症确诊患者与29例正常人进行比较,年龄和性别匹配。所有受试者于同一天进行光学相干层析成像检查和神经... 详细信息

目的:评估光学相干层析成像(OCT)、多发性硬化病程(MS)和扩展伤残状态等级(EDSS)之间的联系。方法:前瞻性双盲研究。29例多发性硬化症确诊患者与29例正常人进行比较,年龄和性别匹配。所有受试者于同一天进行光学相干层析成像检查和神经扩展伤残状态等级测试。结果:多发性硬化症患者平均扩展伤残状态等级指数为3. 2,健康对照组为0. 03,多发性硬化症患者病程为11. 7a。多发性硬化症患者视网膜神经纤维层(RNFL)厚度显著较薄(P<0. 01)。多发性硬化病程与视网膜神经纤维层变薄之间存在相关性。扩展伤残状态等级与视网膜神经纤维层变薄之间呈相关趋势但无统计学意义。结论:较正常对照组,多发性硬化症患者RNFL较薄。多发性硬化症病程对RNFL厚度有直接影响。RNFL厚度与扩展伤残状态等级之间可能存在相关性。建议使用OCT作为多发性硬化症患者的检测和评估工具。

关键词：多发性硬化症视网膜神经纤维层光学相干层析成像扩展伤残状态等级

X-ray Diffraction Study of Single-base Propellant Ageing

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含能材料 2001年第1期9卷 28-30页

作者： radi Ganev 1, Ivan Glavchev 2 (1. Ministry of Defence,TEREM,5 Pencho Slaveikov Blvd, 1606 Sofia, Bulgaria 2. University of Chemical Technology and Metallurgy,8 Kliment Ohridski Blvd,1156 Sofia, Bulgaria) Ministry of Defence TEREM 5 Pencho Slaveikov Blvd 保加利亚 1 6 0 6 University of Chemical Technology and Metallurgy 保加利亚 1 1 56

Ageing of single base propellants, extending over a storage period of more than 50 years, was investigated by X ray diffraction analysis. X ray degree of crystallinity and interplanar spacing were determined. Analysed was the effect of nitrogen content, degree of substitution (DOS) and diphenylamine (DPA) content on structural changes in propellants.

关键词： ageing propellant X ray diffraction analysis nitrocellulose (NC)