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Review on the Estimating the Effective Way for Managing the Produced Water: Case Study

Open Journal of Modern Hydrology 2021年第2期11卷 19-37页

作者： Mohamed A. Kassab Ali E. Abbas iman Elgamal Basem M. Shawky Mahmoud F. Mubarak R. Hosny Egyptian Petroleum Research Institute (EPRI) Cairo Egypt Faculty of Petroleum and Mining Engineering-Suez University Suez Egypt Bader EL-Din Petroleum Company (BAPETCO) Cairo Egypt

Water manufactured is the primary waste source in the oil and gas industry. Because of the rising amount of waste worldwide, the environmental effect of wastewater has become a primary environmental concern in recent years. The vast amounts involved have resulted in considerable costs to the industry for handling produced water. This research explains the wide variety of choices for water management. This research’s first phase was water minimization techniques, consisting of three different applications made in three different wells (Well 1, Well 2 and Well 3) and water recycling and reuse by two techniques. In Well 1, Mechanical shut-off technique was applied using through tubing bridge plug and 5 m cement dumped above it to isolate the watered out zone;as per water oil ration plot the water cut is decreased from 100% to 4% and the production is increased from 0 to 400 bcpd. In Well 2, Chemical shut-off technique using a polymer called Brightwater has been used to block channeling through high permeability intervals after PLT log detected it, and the result was brilliant, the water cut decreased from 60% to 25%, also the oil production increase from 500 to 3000 bopd. In Well 3, downhole separator installed in it using workover (unfortunately, this technique is not applied in middle east till the moment so this application is taken from an oil field in Canada)and the result was perfect, the water cut decreased from 70% to 28%, also the oil production increase from 44 to 100 bopd. This study tried to clarify and compare the most widely used water management techniques using one of the Western Desert (W.D.) (enhanced for oil recovery, constructed wetland).

关键词： Produced Water Water Production Problem Management Techniques Water Minimization Techniques Recycling and Reusing Technologies

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Prospective Assessment of the Rockall Risk Scoring System in Egyptian Patients with Upper Gastrointestinal Bleeding

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Open Journal of Gastroenterology 2015年第6期5卷 66-76页

作者： Mohga A. Reda iman F. Montasser Shereen A. Saleh Azza M. Hassan Alaa Eldein I. Ewis Department of Tropical Medicine Faculty of Medicine Ain Shams University Cairo Egypt Department of Internal Medicine Faculty of Medicine Ain Shams University Cairo Egypt Department of Community Environmental and Occupational Medicine Faculty of Medicine Ain Shams University Cairo Egypt Department of Tropical Medicine Theodor Bilharz Research Institute Cairo Egypt

Background: One of the major challenges in managing acute upper gastrointestinal bleeding involves the identification of patients who are at high risk of rebleeding and death;conversely, the identification of patients who are suitable for early discharge and outpatient endoscopy is also important for effective resource. The use of Rockall system has been shown to represent accurate and valid predictor of rebleeding and death. The aim of this prospective study was to evaluate validity of Rockall score for prediction of rebleeding and mortality in Egyptian patients with upper gastrointestinal bleeding. Patients and Methods: 50 patients presented with upper GI bleeding were subjected to detailed clinical, laboratory, sonographic and endoscopic examination together with Rockall score calculation. Results: According to the findings of upper GI endoscopy patients were further subdivided into two subgroups as follows: Group 1 (n = 32): Patients with portal hypertension manifested by variceal bleeding and/or portal hypertensive gastropathy;and Group 2 (n = 18): other causes of acute upper gastrointestinal bleeding (peptic ulcer disease, Mallory Weiss syndrome…). Clinical condition of the patients was assessed after 48 hours and mortality was recorded. Rockall score was the highest in mortality group, and higher in rebleeding group than stable group (P < 0.01). Rockall score was higher in Child C than Child B and Child A among hepatic patients (P < 0.01). The cutoff value of Rockall score = 3.5 was the best for prediction of rebleeding with sensitivity 100%, specificity 53%, while the cutoff value = 6.5 was the best for prediction of mortality with sensitivity 100% and 93.5% specificity. Conclusion: Rockall score is clinically useful in prediction of rebleeding and mortality in patients with upper gastrointestinal bleeding. It can accurately differentiate between patients with stable condition that could be discharged from hospital and those who require hospitalization and t

关键词： Upper Gastrointestinal Bleeding Rockall Score Portal Hypertension

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用改进的绕组函数理论模拟和仿真有偏心的凸极同步发电机

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国外大电机 2006年第1期 40-44,52页

作者： iman Tabatabaei[伊朗] 韩波（译）李金香（校）

本论文用改进的绕组函数理论和更精确的定子和转子绕组分布模拟和仿真定转子间有动态偏心的凸极同步发电机。与目前可用的方法相比，气隙磁导率计算得更准确。把此方法计算的电感与其他方法计算的电感相比较可知，此方法计算的结果更接... 详细信息

本论文用改进的绕组函数理论和更精确的定子和转子绕组分布模拟和仿真定转子间有动态偏心的凸极同步发电机。与目前可用的方法相比，气隙磁导率计算得更准确。把此方法计算的电感与其他方法计算的电感相比较可知，此方法计算的结果更接近有限元法的计算结果。最后，为仿真和研究有动态偏心的定子线电流的频谱，把计算出的电感用在梢合的电磁模型中。

关键词：偏心线电流频谱凸极同步发电机绕组函数

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基于锥形束CT影像的华东地区女性青少年颈椎骨骨龄分析方法研究

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东南大学学报（医学版） 2020年第1期39卷 1-7页

作者：赵桢祺唐雯 IZADIKHAH iman 谢理哲严斌南京医科大学口腔疾病研究江苏省重点实验室江苏南京210029 南京医科大学附属口腔医院正畸科江苏南京210029

目的:建立基于锥形束CT(CBCT)测量的颈椎二维和三维增龄性形态指标的颈椎骨骨龄计算模型,探索可以准确判断颈椎骨骨龄的定量分析方法。方法:收集华东地区150例8~16岁女性青少年的CBCT影像,并测量分析颈椎二维和三维形态参数。参考Hassel... 详细信息

目的:建立基于锥形束CT(CBCT)测量的颈椎二维和三维增龄性形态指标的颈椎骨骨龄计算模型,探索可以准确判断颈椎骨骨龄的定量分析方法。方法:收集华东地区150例8~16岁女性青少年的CBCT影像,并测量分析颈椎二维和三维形态参数。参考Hassel和Farman的颈椎骨成熟指数确定骨龄分期,应用多元逐步回归分析得出三维形态参数引入前、后的两个骨龄计算模型。应用配对t检验验证模型的预测可信度,并分析比较两个模型的拟合优度和准确率变化。结果:年龄及第2、3和4颈椎的定量参数与骨龄增长高度相关。三维形态参数引入前、后所得的骨龄模型分别为:Y=3.417+0.804×第3椎体高度(H3)+0.431×第4椎体后缘高度与上缘宽度比(PH4/UW4)+0.246×年龄+0.228×第3椎体下缘凹陷高度与前缘高度比(D3/AH3)(调整R 2=0.660);Y=3.417+0.960×第3椎体高度(H3)+0.273×年龄-0.302×第4颈椎体积(V-C4)+0.239×第3椎体下缘凹陷高度与后缘高度比(D3/PH3)+0.381×第3椎体后缘高度与下缘宽度比(PH3/LW3)(调整R 2=0.678)。经配对t检验,两个骨龄模型的预测值与金标准间差异均无统计学意义(P>0.05)。引入三维形态参数后,模型的拟合优度与预测准确率均有所提高。结论:同时应用颈椎二维和三维形态参数建立颈椎骨骨龄计算模型,可提高模型的拟合优度与预测准确率,计算出的颈椎骨骨龄可作为华东地区女性青少年颅颌面部生长发育的评价指标,为正畸临床提供参考。

关键词：颈椎骨龄女性三维参数华东地区

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Single versus combination therapy in acute tocolysis: A prospective randomized controlled trial

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Open Journal of Obstetrics and Gynecology 2013年第2期3卷 249-256页

作者： Wafa R. Al-Omari Muzibunnisa A. Begam Farsana S. Khan iman Y. Khudhair Nicolaas J. Nagelkerke Department of Community Medicine Faculty of Medicine and Health Sciences UAE University Al Ain UAE Department of Obstetrics & Gynecology Tawam/Johns Hopkins Hospital Al Ain UAE

This is a prospective controlled randomized trial conducted in 92 women with singleton pregnancies in preterm labor. The tocolytic efficacy and safety of combination atosiban and nifedipine was compared with that of the single agent, atosiban. Both lines of intervention was administered for 48 hours. Progression of labor was assessed by the frequency of uterine contractions and cervical changes. For statistical purpose, intent-to-treat (ITT) analysis was used throughout. Efficacy, as determined by the proportion of women in each group who did not deliver after therapy initiation, was comparable with no significant differences, at 48 hrs (91.5% vs. 91.1%) and at 7 days (90.7% vs. 85.7%) for the atosiban and the combination groups respectively. Safety was assessed by the numbers of adverse events. Maternal side effects were reported more in the combination group (34% vs. 64%;P = 0.006). Perinatal outcomes were similar between the groups. We conclude that the addition of nifedipine did not substantially improve the clinical outcomes beyond that were achieved with atosiban alone. Moreover, it has increased maternal side effects. Future research could focus on combination of other tocolytics.

关键词： Atosiban Combination Tocolysis Preterm Labor

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Management of acute esophageal variceal bleeding by endoscopic sclerotherapy in technically difficult endoscopic band ligation cases—A population based cohort study

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Open Journal of Gastroenterology 2013年第5期3卷 281-287页

作者： Gamal E. Esmat iman M. Hamza Bahaa E. Abbas Ahmed M. Hashem Hossam S. Ghoneim Division of Endoscopy Air Force Hospital Cairo Egypt Endemic Medicine Department Division of Endoscopy Cairo University Giza Egypt Tropical Medicine Department Beni Sweif University Cairo Egypt

Endoscopic band ligation is regarded as the main therapeutic option for acute esophageal variceal bleeding, while sclerotherapy may be used in the acute setting if ligation is technically difficult. The incidence of difficult-to-perform band ligation in acute esophageal variceal bleeding, as well as the outcome of patients subjected to injection sclerotherapy as an alternative treatment, has not been clearly investigated. Our aim is to study the outcome of patients subjected to injection sclerotherapy in the acute setting of esophageal variceal bleeding when endoscopic band ligation is technically difficult to perform. We included 151 patients with acute esophageal variceal bleeding originnating from medium or large sized varices. All patients were planned for EBL as the 1st treatment option (EBL group 61.6%), meanwhile, EIS using 5% ethanolamine oleate was reserved as the 2nd treatment option when EBL was technically difficult (EIS group 38.4%). The mean time to restore hemodynamic stability was significantly prolonged in the EIS group (11.5 ± 6.5 hrs versus 9.5 ± 5.0 hrs, p 0.05). Initial control of bleeding was significantly higher in the EBL group versus the EIS group (96.7% vs 84.5%, p 0.021). Re-bleeding was more among the EIS group (42.9% vs 24.2%, p 0.04). There were no significant differences as regarding mortality and duration of hospital stay. So, a considerable proportion of cases presenting with acute variceal bleeding will have difficulty in performing EBL. In these patients, sclerotherapy is not a waning procedure with an accepted success rate, without much additional complications and without deranging mortality.

关键词： Esophageal Varices Band Ligation Injection Sclerotherapy

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上海外来孕产妇平产政策困境研究

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上海交通大学学报（医学版） 2011年第1期31卷 80-83页

作者：蔡雨阳施莉莉蒋雪琴 Godfried Nortei Nortey iman Sebtiu Mohammed 马进 PlI.Davidsen 上海交通大学公共卫生学院上海200025 挪威卑尔根大学系统动力学中心

目的针对外来孕产妇平产政策问题开展研究,以提高对外来孕产妇保健的管理能力。方法以上海市嘉定区2004年起对外来孕产妇实行150元3次产检和24h800元顺产的平产政策为研究对象,在文献分析和专家访谈的基础上,采用系统动力学动态建模,对2... 详细信息

目的针对外来孕产妇平产政策问题开展研究,以提高对外来孕产妇保健的管理能力。方法以上海市嘉定区2004年起对外来孕产妇实行150元3次产检和24h800元顺产的平产政策为研究对象,在文献分析和专家访谈的基础上,采用系统动力学动态建模,对2004—2014年间的平产政策进行仿真实验。结果系统动力学模型模拟出的2004—2008年外来孕产妇的人口增长与嘉定区卫生局提供的统计数据非常接近。对2004—2014年间的平产政策进行仿真实验显示:调整政府平产补贴,可逐步控制外来孕产妇数量为原有增长量的40%,并计算得到均衡点的平产补贴为170元人民币。结论平产政策需要逐渐调整到均衡价,才能平衡平产医院的高压力和外来孕产妇的增长。

关键词：外来孕产妇动态建模政策仿真

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Patient Perspectives of the Role of the Community Pharmacist in the Middle East: Jordan, United Arab Emirates and Iraq

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Pharmacology & Pharmacy 2014年第6期5卷 588-599页

作者： iman A. Basheti Eyad A. Qunaibi Salim A. Hamadi Eman Abu-Gharbieh Suhair Saleh Salah AbuRuz Mohammed Mohamoud Nailya R. Bulatova Department of Biopharmaceutics & Clinical Pharmacy Faculty of Pharmacy The University of Jordan Amman Jordan Department of Clinical Pharmacy & Therapeutics Faculty of Pharmacy Applied Science University Amman Jordan Department of Clinical Pharmacy Faculty of Pharmacy Al-Mustansiriya University Baghdad Iraq Department of Pharmacology & Biomedical Sciences Faculty of Pharmacy and Medical Sciences Petra University Amman Jordan Department of Pharmacology & Therapeutics Dubai Pharmacy College Dubai UAE

Objectives: To explore patient’s perspectives of the role of the community pharmacist in view of other health care professionals (specialist physician, general practitioner, nurse and others (e.g. herbalist)) in Jordan, UAE and Iraq. The study also investigated patient’s willingness to pay for specialized pharmaceutical care services. Methods: This study followed a single phase cross sectional survey methodology, conducted in three Middle Eastern countries. Data were collected over a period of 6 months on two consecutive years (March to May 2009 and 2010). A questionnaire was designed and validated, then completed by patients walking into community pharmacies. The source of advice (specialist physician, general practitioner, pharmacist, nurse, or herbalist) regarding patient’s medication use and medical management were investigated. Key findings: Patients visiting community pharmacies in Jordan (n = 1000), UAE (n = 1000) and Iraq (n = 968) were recruited into the study (mean age 35.9 ± 13.1, 50.6% males). Significant difference between the three countries was shown, as more patients chose the pharmacist as their primary source of advice on medication use vs. the specialist physician in Jordan (50.8% vs. 37.3%) and Iraq (41.9% vs. 36.7%) compared to UAE (38.0% vs. 40.1%), P < 0.001, Chi-square test. Few agreed to receive paid pharmaceutical care services (Jordan 19.5%;UAE 24.7%;Iraq 2.3%). Conclusion: Current situation resulting in the lower socioeconomic status in Jordan and Iraq seems to lead to patients’ higher reliance on the pharmacist, as compared to the UAE. Majority of patients, regardless of the country of origin, are not willing to pay for specialized pharmaceutical care services. These findings are important for future social pharmacy research in the area.

关键词： Community Pharmacy Pharmaceutical Care Outpatients Health Care Professionals

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Expression of miR-16 is not a suitable reference for analysis of serum microRNAs in melanoma patients

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Journal of Biomedical Science and Engineering 2012年第11期5卷 647-651页

作者： Erica B. Friedman Shulian Shang Nathaniel H. Fleming Eleazar Vega-Saenz de Miera Eva Hernando Yongzhao Shao iman Osman Department of Dermatology New York University New York USA Division of Biostatistics New York University New York USA Interdisciplinary Melanoma Cooperative Group New York University New York USA

Background: The evolving paradigm shift towards the molecular characterization of melanoma has expanded to include studies of microRNA (miRNA) expression. As miR-16 has been utilized as a normalizer in serum-based miRNA studies in several cancers, we evaluated miR-16 expression as a potential reference for normalization of serum miRNA expression in melanoma patients. Methods: 143 primary cutaneous melanoma patients who presented to New York University (NYU) Langone Medical Center for surgical resection of AJCC stage I-III disease were studied. In addition, sera samples from 60 control subjects were utilized including 22 healthy volunteers, 13 rheumatoid arthritis patients, 20 non-melanoma cancer patients (10 renal cell carcinoma and 10 bladder cancer), and 5 Atypical Mole Syndrome patients. The Kruskal-Wallis test (k = 6) or Wilcoxon test (k = 2) with Bonferroni correction was used for analyses of miR-16 expression in melanoma patients compared to various control groups, using raw Ct values directly. The Kruskal-Wallis test was used to compare miR-16 expression across stages of melanoma. The equivalence test for independent samples was used to test the equivalence of miR-16 expression among different groups. Results: No significant differential expression of miR-16 was observed between melanoma patients and healthy volunteers (Wilcoxon test, p = 0.37). However, miR-16 did show a significant difference in expression as it related to stage of melanoma (p = 0.015). Additionally, the equivalence test was unable to confirm equivalent expression of miR-16 in any melanoma versus control group pair. Conclusion: Our data indicate that miR-16 cannot be used as a universal normalizer in sera studies of melanoma patients.

关键词： MicroRNA Melanoma Normalization Reference Gene

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基于颈椎CBCT影像的华东地区女性青少年手腕骨骨龄分析方法研究

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口腔生物医学 2020年第1期11卷 53-58页

作者：赵桢祺李琥唐雯 IZADIKHAH iman 谢理哲严斌南京医科大学口腔疾病研究江苏省重点实验室南京医科大学附属口腔医院正畸科江苏南京210029

目的:建立并探讨基于华东地区女性青少年颈椎锥形束CT(CBCT)影像中二维和三维增龄性形态指标的手腕骨骨龄预测模型。方法:收集华东地区150例8~16岁女性青少年的手腕X线片与颅颌面CBCT影像,测量颈椎二维和三维形态参数,并参考Fishman的... 详细信息

目的:建立并探讨基于华东地区女性青少年颈椎锥形束CT(CBCT)影像中二维和三维增龄性形态指标的手腕骨骨龄预测模型。方法:收集华东地区150例8~16岁女性青少年的手腕X线片与颅颌面CBCT影像,测量颈椎二维和三维形态参数,并参考Fishman的手腕骨成熟指数确定骨龄分期。应用多元逐步回归分析得出三维形态参数引入前、后的骨龄模型。应用配对t检验验证模型的预测可信度,并比较两个模型的拟合优度和准确率变化。结果:年龄及第二、三、四颈椎的定量参数与手腕骨骨龄显著正相关。配对t检验结果显示,两个模型的骨龄预测值与金标准间均无显著差异(P>0.05)。引入三维形态参数后,模型的拟合优度与预测准确率均提高。结论:同时采用颈椎二维和三维形态参数建立的手腕骨骨龄预测模型,具有较好的拟合优度与预测准确率,为华东地区女性青少年手腕骨骨龄的定量研究提供了可靠依据,可作为评价个体骨骼成熟状态的有效参考。

关键词：手腕颈椎骨龄三维参数华东地区

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