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阿斯旺高坝对环境的影响——工况研究

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河海大学科技情报 1990年第2期10卷 104-114页

作者： Mahmoud abu zeid 萱良德

阿斯旺高坝至今已运行了20年。本文对高坝环境影响的客观分析,清楚的说明了该坝对埃及产生的影响是积极肯定的。文章根据过去20年来积累的资料.综合评述阿斯旺高坝对环境产生的有利影响和不利影响.

关键词：高坝环境水质水库影响

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Evaluation of the Expansive Esna Shale and Its Role in the Deterioration of Heritage Buildings at West Bank of Luxor

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Journal of Geoscience and Environment Protection 2019年第8期7卷 24-37页

作者： Ahmed Fathi Younes Gelany Mahmoud M. abu zeid Mahmoud Sayed Abd El-Sadek Abbas M. Mansour Geology Department Faculty of Science South Valley University Qena Egypt Civil Engineering Departments Faculty of Engineering South Valley University Qena Egypt Nanomaterials Lab Physical Department Faculty of Science South Valley University Qena Egypt

The heritage buildings at the west bank of Luxor were affected by expansive Esna shale differentially from site to others. The role of expansive Esna shale was evaluated by using X-ray diffraction spectra (particle size, strain), X-ray fluorescence, basic soil properties test, swelling test, soil classification, and unconfined compression test. Three different samples were examined to determine the expansive role in the deterioration of heritage sites. The expansive is high, according to: (a) Soil classification based on plasticity index, (b) Classification chart based on the liquid limit and plastic index, (c) Classification chart based on clay content and activity, (d) Soil classification, and (e) Swelling pressure which determines the safety factor. In addition, expansive classification assesses that Esna shale Formation is one of environmental hazards characterized by damage role near Nile flood and irrigation area and characterized by deterioration role in heritage sites far from Nile flood and irrigation area. This paper refers to evaluation as a main process of integrated conservation approach.

关键词： Heritage Deterioration Expansive Soils Integrated Approach

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二极管桥式温度传感器

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中国检验检测 1987年第6期 37-38+20页

作者： M.M.abu-zeid 袁凤

1.前言普通形式的半导体温度传感器是基于测量以恒定电流密度比工作的二极管差动对两端的电位差。通常用恒流源来保证电路达到所需的电流密度比。因此,传感器由两个相同的二极管制成,它们以两种不同的恒流工作;或由两个有效面积不等的... 详细信息

1.前言普通形式的半导体温度传感器是基于测量以恒定电流密度比工作的二极管差动对两端的电位差。通常用恒流源来保证电路达到所需的电流密度比。因此,传感器由两个相同的二极管制成,它们以两种不同的恒流工作;或由两个有效面积不等的二极管制成,它们以相等或不等电流工作。

关键词：二极管有效面积电流串联电阻电桥温度传感器桥式

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Impact of cirrhosis on surgical outcome after pancreaticoduodenectomy

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World Journal of Gastroenterology 2013年第41期19卷 7129-7137页

作者： Ayman El Nakeeb Ahmad M Sultan Tarek Salah Mohamed El Hemaly Emad Hamdy Ali Salem Ahmed Moneer Rami Said Ahmed abuEleneen Mostafa abu zeid Talaat Abdallah Mohamed Abdel Wahab Gastroenterology surgical center Mansoura UniversityMansoura 35516Egypt

AIM:To elucidate surgical outcomes of pancreaticoduodenectomy(PD)in patients with liver ***:We studied retrospectively all patients who underwent PD in our centre between January 2002and December *** A comprised patients with cirrhotic livers,and Group B comprised patients with non-cirrhotic *** cirrhotic patients had ChildPugh classes A and B(patient’s score less than 8).Preoperative demographic data,intra-operative data and postoperative details were *** primary outcome measure was hospital mortality *** outcomes analysed included duration of the operation,postoperative hospital stay,postoperative morbidity and survival ***:Only 67/442 patients(15.2%)had cirrhotic *** blood loss and blood transfusion were significantly higher in group A(P=0.0001).The mean surgical time in group A was significantly longer than that in group B(P=0.0001).Wound complications(P=0.02),internal haemorrhage(P=0.05),pancreatic fistula(P=0.02)and hospital mortality(P=0.0001)were significantly higher in the cirrhotic *** stay was significantly longer in group A(P=0.03).The median survival was 19 mo in group A and 24 mo in group *** hypertension(PHT)was present in 16/67 cases of cirrhosis(23.9%).The intraoperative blood loss and blood transfusion were significantly higher in patients with PHT(P=0.001).Postoperative morbidity(0.07)and hospital mortality(P=0.007)were higher in cirrhotic patients with ***:Patients with periampullary tumours and well-compensated chronic liver disease should be routinely considered for PD at high volume centres with available expertise to manage liver *** is associated with an increased risk of postoperative morbidity in patients with liver cirrhosis;therefore,it is only recommended in patients with Child A cirrhosis without portal hypertension.

关键词： Periampullary tumour Liver cirrhosis Portal hypertension Pancreaticoduodenectomy

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