检索结果-南通市图书馆

Numerical and experimental analyses of rock failure mechanisms due to microwave treatment

Journal of Rock mechanics and Geotechnical Engineering 2023年第10期15卷 2483-2495页

作者： Haitham m.Ahmed Adel Ahmadihosseini Ferri Hassani m.ham.ed a.hefni HussinA.m.Ahmed Hussein A.Saleem Essam B.moustafa Agus P.Sasmito mining Engineering Department King Abdulaziz UniversityJeddah21589Saudi Arabia Department of mining and materials Engineering McGill UniversityMontrealQCH3A0E8Canada mechanical Engineering Department King Abdulaziz UniversityJeddah21589Saudi Arabia

Despite the extensive studies conducted on the effectiveness of microwave treatment as a novel rock preconditioning method,there is yet to find reliable data on the rock failure mechanisms due to microwave *** addition,there is no significant discussion on the energy efficiency of the method as one of the important factors among the mining and geotechnical engineers in the *** study presents a novel experimental method to evaluate two main rock failure mechanisms due to microwave treatment without applying any mechanical forces,*** and concentrated *** result shows that the existence of a small and concentrated fraction of a strong microwave absorbing mineral will change the failure mechanism from the distributed heating to the concentrated heating,which can increase the weakening over microwave efficiency(WOmE)by more than 10 *** observation is further investigated using the developed coupled numerical *** is shown that at the same input energy,the existence of microwave absorbing minerals can cause major heat concentration inside the rock and increase the maximum temperature by up to three times.

关键词： microwave treatment Numerical modeling Failure mechanism Energy efficiency Rock pre-conditioning

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genetics of congenital and infantile nephrotic syndrome

引用

World Journal of Pediatrics 2019年第2期15卷 198-203页

作者： Sara Nawfal Sharief Nada Abdullatif hefni Walaa Ali Alzahrani Iman Ibrahim Nazer marwa Abdullah Bayazeed Khalid A.Alhasan Osama Y.Safdar Sherif m.El-Desoky Jameela Abdulaziz Kari King Abdulaziz University JeddahKingdom of Saudi Arabia College of medicine Pediatric DepartmentKing Saud UniversityRiyadhKingdom of Saudi Arabia Department of Pediatrics Faculty of MedicinePediatric Nephrology Center of ExcellenceKing Abdulaziz UniversityPO Box 80215Jeddah 21589Kingdom of Saudi Arabia

Background Congenital and infantile nephrotic syndrome (CNS and INS) are rare inherited defects in glomerular filtration involving a variety of gene *** study aimed to analyze all genetic mutations associated with congenital and infantile nephrotic syndrome treated at our *** also discussed our different approach secondary to culture and *** A retrospective single-center study of all children diagnosed as NS before the age of l year over a duration of over one *** Twenty-nine children (12 boys) were included in the *** median age (range) was 2.4 (0.1-12) months (20 CNS and 9 INS).Consanguinity was present in 90% of *** genetic analysis' results were only available for 20 *** underlying causative homozygous mutation was detected in 18 children (90%):NPHS1 (9),NPHS2(2),LAmB2(3),PLCE1(1),WT1(1),and ITSN1 novel mutation (2).One child had heterozygous mutation of NPHS2 and another child had heterozygous mutation of NPHS1 which could not explain the *** CNS cases were all managed with intermittent intravenous albumin infusion,ACEi,diuretics,and *** of the children were managed by nephrectomy followed by peritoneal dialysis (PD) because of limited *** one child achieved partial remission,while 15 children died at a median (range) age of 5.8 (1.25-29) *** remaining 14 children were followed up for an average of 36 (3.9-120) *** children progressed to end-stage kidney disease and PD was performed in only two *** NPHS1 is the main underlying cause of CNS and INS in our study *** and INS were associated with high morbidity and mortality.

关键词： Congenital nephrotic Infantile nephrotic Genetics Outcome

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of a 12-Week Dietary Intervention with Folic Acid or Folate-Enhanced Foods on Folate Status in Healthy Egyptian Women

引用

Food and Nutrition Sciences 2016年第14期7卷 1339-1351页

作者： m.ham.ed E. hefni mohamed T. Shalaby Rasha A. mohamed Ahmad m. Elwa Cornelia m. Witthöft Food Industries Department Faculty of Agriculture Mansoura University Mansoura Egypt Department of Chemistry and Biomedical Sciences Linnaeus University Kalmar Sweden Faculty of Nursing Mansoura University Mansoura University Mansoura Egypt Clinical Pathology Department Faculty of Medicine Mansoura University Mansoura Egypt

The Egyptian government introduced wheat-flour fortification with iron and folic acid to reduce the incidence of neural tube defects, but suspended it for technical reasons. We previously developed novel legume foods with enhanced folate content. In this study, we investigated the efficacy of 12-week intervention with folate-enhanced foods versus folic acid supplement in improving folate status in Egyptian women. A randomized, parallel intervention trial with two active groups (n = 19, n = 18) and one blinded control group (n = 20) was executed over 12 weeks. Volunteers received either germinated legume foods and orange juice (≈250 μg/d folate) or folic acid supplement (500 μg/d) or apple juice (0 μg/d folate). Folate status was assessed by erythrocyte and plasma folate and total homocysteine (tHcy) at day 0, and after 8 and 12 weeks of intervention. After 12 weeks, mean plasma folate increased by 14 (P moL in the folic acid and food group, respectively. Erythrocyte folate concentration increased in the folic acid group from 614 to 912 (P m 631 to 914 nmoL (P eding 906 nmol/L. tHcy concentration was decreased by 20% (P = 0.007) and 18% (P = 0.006) in the folic acid and food group, respectively, but remained unchanged in the control group during intervention. Folate-enhanced foods effectively improve folate status in women of reproductive age. These foods could be used as a complement to folic acid fortification.

关键词： Folic Acid Folate-Enhanced Legume Foods Human Intervention Folate Status

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

患子宫阴道脱垂的老年妇女行保留子宫骶棘韧带宫颈阴道固定术:一种手术进展的概念

引用

实用妇产科杂志 2003年第5期 322-322页

作者： m hefni 左万兴

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：