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Fabrication and Characterization of Graphene Incorporated Cu Based Perovskite in Application of Perovskite Solar Cell under Ambient Condition 预览
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作者 Shah Sultan Ashrafi Kamal Hossain +2 位作者 Farid Ahmed Abul Hossain Obaidur Rahman 《材料物理与化学进展(英文)》 2020年第1期1-16,共16页
In this work, we demonstrate the synthesis and characterization of Cu-based thin film perovskites and their prospective application in photovoltaic cells and light-harvesting devices, which is lead(Pb) free and enviro... In this work, we demonstrate the synthesis and characterization of Cu-based thin film perovskites and their prospective application in photovoltaic cells and light-harvesting devices, which is lead(Pb) free and environmental friendly. We studied valuable part of graphene for stability issue in CH3NH3CuCl3(MACuCl3) Perovskites solar cell and improved band gap 2.61 eV to 2.56 eV as well. Copper ions represented responsible of this materials for the bright green photoluminescence. For assimilating MACuCl3 and G-MACuCl3 based Perovskites, solar cells architectures and photovoltaic performance are argued among them. The main limitations for the solar cell efficiency were found the arrangement of insubstantial mass and high absorption coefficient of the electrons as well. As per as our knowledge, this work is demonstrated of the prospective of thin film MACuCl3 and G-MACuCl3 perovskite as light absorber and puts down the establishment for additional development of perovskite solar cell as alternative of lead-free materials. 展开更多
关键词 DEMONSTRATION Perovskites LIGHT-HARVESTING MACuCl3 ABSORBER PHOTOLUMINESCENCE
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Effects of dual sofosbuvir/daclatasvir therapy on,chronic hepatitis C infected,survivors of childhood malignancy 预览
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作者 Mortada HF El-Shabrawi Laila M Sherief +8 位作者 Mostafa Yakoot Naglaa M Kamal Mohamed A Almalky Manal M AbdElgawad Aml A Mahfouz Sherine Helmy Enas M Kamal Dina Attia Hisham R El-Khayat 《世界临床病例杂志》 2019年第16期2247-2255,共9页
BACKGROUND Childhood cancer survivors are potentially at a higher risk of infection with hepatitis C virus (HCV).The effects of all-oral direct-acting antiviral therapy (DAA) on both the HCV infection as well as the s... BACKGROUND Childhood cancer survivors are potentially at a higher risk of infection with hepatitis C virus (HCV).The effects of all-oral direct-acting antiviral therapy (DAA) on both the HCV infection as well as the state of cancer remission have not been well investigated in this population.AIM To test the effects of dual sofosbuvir/daclatasvir (SOF/DCV) therapy in the treatment of chronic HCV in survivors of hematologic malignancy in pediatric age group.METHODS We conducted a prospective,uncontrolled,open-label multicenter study.A total of 20 eligible,chronic HCV,genotype-4,infected children who had been in continuous complete remission from hematologic cancer (leukemia/lymphoma) for at least one year were included in the study.All patients were treated with combined SOF/DCV for 12 wk.Patients were monitored throughout the study till 12 wk after end of treatment for safety and efficacy outcomes including the sustained virologic response 12 (SVR12) rate,hematological indices,liver and kidney functions.RESULTS The intent-to-treat SVR12 rate was 20 of 20 (100%;95%CI: 84%-100%).All patients showed normalized liver enzymes from week-4.All hematological indices,liver and kidney functions were kept normal throughout the study.No fatalities or treatment-emergent serious or severe adverse events were reported throughout the study.CONCLUSION SOF/DCV combined therapy could be used safely and effectively in the treatment of chronic HCV genotype-4 infection in leukemia/lymphoma treated children.No relapses were detected during treatment and throughout the follow up period for either the original malignant disease or the HCV infection. 展开更多
关键词 CHRONIC HEPATITIS C SURVIVORS of CHILDHOOD cancer Sofosbuvir Daclatasvir Efficacy
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Predictive car-following scheme for improving traffic flows on urban road networks
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作者 A.S.M.BAKIBILLAH Mahmudul HASAN +1 位作者 Md Mustafijur RAHMAN Md Abdus Samad KAMAL 《控制理论与技术:英文版》 EI CSCD 2019年第4期325-334,共10页
Driving behavior is one of the main reasons that causes bottleneck on the freeway or restricts the capacity of signalized intersections.This paper proposes a car-following scheme in a model predictive control(MPC)fram... Driving behavior is one of the main reasons that causes bottleneck on the freeway or restricts the capacity of signalized intersections.This paper proposes a car-following scheme in a model predictive control(MPC)framework to improve the traffic flow behavior,particularly in stopping and speeding up of individual vehicles in dense urban traffic under a connected vehicle(CV)environment.Using information received through vehicle-to-vehicle(V2V)communication,the scheme predicts the future states of the preceding vehicle and computes the control input by solving a constrained optimization problem considering a finite future horizon.The objective function is to minimize the weighted costs due to speed deviation,control input,and unsafe gaps.The scheme shares the planned driving information with the following vehicles so that they can make better cooperative driving decision.The proposed car-following scheme is simulated in a typical driving scenario with multiple vehicles in dense traffic that has to stop at red signals in multiple intersections.The speeding up or queue clearing and stopping characteristics of the traffic using the proposed scheme is compared with the existing car-following scheme through numerical simulation. 展开更多
关键词 Car-following scheme model predictive control vehicle string connected vehicle environment distributed control
Existence and Essence in Mulla Sadra’s Ontology 预览
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作者 Muhammad Kamal 《哲学研究:英文版》 2019年第7期399-407,共9页
This paper examines the relationship between existence and essence in Mulla Sadra’s ontology.It analyses his arguments against the possibility of a real distinction between existence and essence of the existing entit... This paper examines the relationship between existence and essence in Mulla Sadra’s ontology.It analyses his arguments against the possibility of a real distinction between existence and essence of the existing entities in the world,which is advocated by Ibn Sina,and then explicates how Mulla Sadra after rejecting Ibn Sina’s notion of the real distinction interprets the ontological difference between reality and the possible world by reflecting on his doctrines of the principality of existence(asālat al-wujūd)and the gradation of the reality of existence(tashkīk al-wujūd),rather than existence-essence dichotomy. 展开更多
关键词 ONTOLOGY EXISTENCE ESSENCE accidentality of EXISTENCE UNITY MULTIPLICITY
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Bedouin farms in the Saint Katherine mountainous area(South Sinai,Egypt)
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作者 Kamal H.SHALTOUT Khaled H.EL-HAMDI +1 位作者 Safaa A.EL-MASRY Ebrahem M.EID 《山地科学学报:英文版》 SCIE CSCD 2019年第10期2232-2242,共11页
This study aims to assess the natural and cultivated plant species in 26 Bedouin farms in Saint Katherine Protectorate(SKP),identify their soil and water characteristics,and assess the suitability of these farms for t... This study aims to assess the natural and cultivated plant species in 26 Bedouin farms in Saint Katherine Protectorate(SKP),identify their soil and water characteristics,and assess the suitability of these farms for the cultivation of some wild medicinal plants.The farms were selected to represent wide wadis with deep sand and clay deposits,gorge-like wadis covered with rock fragments of different sizes,spot-like oases,and the Al Q’aa Plain.Using TWINSPAN(two-way indicator species analysis)and DCA(detrended correspondence analysis)techniques,the 26 farms were classified into 5 groups(Ⅰ-Ⅴ)based on their floristic composition of wild plants.These groups reflect an elevation gradient among the farms above sea level from a mean of 119 m to a mean of1,865m.A total of 73 wild species were recorded,with47 in groupⅡ(500-1,000 m)and 25 in group V(>1,700 m).The common target species were Artemisia judaica,Acacia tortilis subsp.raddiana,Origanum syriacum subsp.sinaicum and Varthemia montana(34.6%-26.9%).The cultivated speciesnumbered 25,with 17 in groupⅡ(500-1,000 m) andⅡin groupⅣ(1,500-1,700 m).The common fruit trees were olive,grape,fig,apple,palm,almond,apricot and pomegranate(73.0%-42.3%).Based on the soil characteristics,13 farms belong to soil class 2that describes good soils with moderate limitations,and 12 belong to soil class 3 that describes moderately good soils,which can be used regularly for crops after proper treatment. 展开更多
关键词 AGROFORESTRY SAINT Katherine Protectorate Wild MEDICINAL plants Elevation gradient Multivariate analysis WADI Feiran
Seasonal Effect on Biomarkers of Exposure to Petroleum Hydrocarbons in the Coasts of North Western Suez Gulf,Egypt 预览
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作者 Omayma E.Ahmed Mustafa M.Emara +2 位作者 Nazik A.Farid1 Enas A.El-Sabagh Eman M.Kamal 《地球与环境科学(英文)》 2019年第1期38-48,共11页
Petroleum hydrocarbons of surface water were collected from eight loca-tions of from the coasts of north western Suez Gulf,Egypt.The extracted petroleum hydrocarbons were determined by gas chromatography-flame ionizat... Petroleum hydrocarbons of surface water were collected from eight loca-tions of from the coasts of north western Suez Gulf,Egypt.The extracted petroleum hydrocarbons were determined by gas chromatography-flame ionization detector and quantified by integrating the areas of both the resolved and unresolved components.The results confirm that the con-centration is relatively higher than the recommended in the regulations of the Egyptian low of Environment of No.4/1994 of petroleum products.At various locations.The dissolved petroleum hydrocarbons ranged from 5.639 to 74.8 and 1.868 to 65.698 mg/ml for summer and winter sea-sons,respectively.This indicates that chronic oil pollution,in addition to hydrocarbon concentrations,the diagnostic indices used shows that the hydrocarbons in the area were comes from biogenic,petrogenic and anthropogenic sources.FT-IR spectrometric analysis confirms die petro-genic nature of pollutants. 展开更多
关键词 EGYPT Oil HYDROCARBON PHYSICOCHEMICAL Diagnostic Gas chromatography Suez CANAL
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The Effects of Bio-inspired Electromagnetic Fields on Normal and Cancer Cells
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作者 Xuelei Liu Zongming Liu +4 位作者 Zhenning Liu Shujun Zhang Kamal Bechkoum Michael Clark Luquan Ren 《仿生工程学报:英文版》 SCIE EI CSCD 2019年第5期943-953,共11页
The electromagnetic field(EMF)is one of many environmental factors,which earth creatures are exposed to.There are many reports on the effects of EMF on living organisms.However,since the mechanism has not yet been fii... The electromagnetic field(EMF)is one of many environmental factors,which earth creatures are exposed to.There are many reports on the effects of EMF on living organisms.However,since the mechanism has not yet been fiilly understood,the biological effects of EMF are still controversial.In order to explore the effects of bio-inspired EMF(BIEMF)on normal and cancer cells,various cultured cells have been exposed to BIEMF of different directions,i.e.vertical,parallel and inclined.Significantly reduced ATP production in Hela and A549 cancer cells is found for the parallel and vertical BIEMF.More careful examination on Hela cells has revealed a cell density dependent inhibition on colony formation.The morphological observation of BIEMF-exposed Hela cells has suggested that the retarded cell proli feration is probably caused by cell death via apoptosis.Together these results may afford new insights for cancer prevention and treatment. 展开更多
关键词 ELECTROMAGNETIC fields(EMF) BIO-INSPIRED ELECTROMAGNETIC fields(BIEMF) DIRECTIONALITY cancer cell proliferation
高压电选法从石英中分离锆石的新预处理方法 预览
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作者 Sivash NOURI Fatemeh Sadat HOSEINIAN +1 位作者 Bahram REZAI Kamal SABERYAN 《中国有色金属学报:英文版》 SCIE EI CAS CSCD 2019年第8期1737-1743,共7页
静电选矿是一种基于矿物导电性的矿物加工方法。但该方法存在一些严重问题,如对湿度敏感,中矿产率高和含有非导电矿物杂质。为克服这些缺点,本文作者提出一种新的预处理方法,用于在静电选矿前从石英中分离锆石。预处理包括两个阶段:一... 静电选矿是一种基于矿物导电性的矿物加工方法。但该方法存在一些严重问题,如对湿度敏感,中矿产率高和含有非导电矿物杂质。为克服这些缺点,本文作者提出一种新的预处理方法,用于在静电选矿前从石英中分离锆石。预处理包括两个阶段:一是使用十二烷基硫酸钠(SDS)作捕集剂调节锆石表面的润湿性,二是喷洒电解质水溶液以提高石英表面的导电性。考察pH值、捕集剂浓度、调节时间、电解质浓度和种类等重要参数对分选效率的影响。研究表明,高压电选的最佳条件如下:pH值为4,SDS浓度为1×10-4 mol/L,调节时间为4 min,NaCl为电解质,其浓度为4.27 mol/L,最佳条件下的分选效率为95.12%。该预处理方法可成功地应用于高压电选前各种组成的导电性或非导电性矿物的分选。 展开更多
关键词 锆石 石英 捕集剂 电解质水溶液 导电性 高压电选 表面处理
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A Link-Based Similarity for Improving Community Det ection Based on Label Propaga tion Algorithm
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作者 BERAHMAND Kamal BOUYER Asgarali 《系统科学与复杂性学报:英文版》 SCIE EI CSCD 2019年第3期737-758,共22页
Community structure is one of the most best-known proper ties of complex networks. Finding communities help us analyze networks from a mesoscopic viewpoints instead of microscopic or macroscopic one. It helps to under... Community structure is one of the most best-known proper ties of complex networks. Finding communities help us analyze networks from a mesoscopic viewpoints instead of microscopic or macroscopic one. It helps to understand behavior grouping. Various community detection algorithms have been proposed with some shortcomings in time and space complexity, accuracy, or stability. Label Propagation Algorithm (LPA) is a popular method used for finding communities in an almost-linear time-consuming process. However, its performance is not satisfactory in some metrics such as accuracy and stability. In this paper, a new modified version of LPA is proposed to improve the stability and accuracy of the LPA by defining two concepts -nodes and link strength based on semi-local similarity-, while preserving its simplicity. In the proposed method a new initial node selection strategy, namely the tiebreak strategy, updating order and rule update are presented to solve the random behavior problem of original LPA. The proposed algorithm is evaluated on artificial and real networks. The experiments show that the proposed algorithm is close to linear time complexity with better accuracy than the original LPA and other compared met hods. Furthermore, the proposed algorithm has the robustness and stability advantages while the original LPA does not have these features. 展开更多
关键词 COMMUNITY detection complex networks LPA SIMILARITY MEASURE
Rare sequalae of hiatal hernia causing pancreatitis and hepatitis:A case report 预览
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作者 Muhammad Umar Kamal Ahmed Baiomi +1 位作者 Mohamad Erfani Harish Patel 《世界胃肠内镜杂志:英文版(电子版)》 2019年第3期249-255,共7页
Hiatal hernia(HH) contents commonly include stomach, transverse colon, small intestine, and spleen but herniation of the pancreas is an extremely rare phenomenon.79-year-old female with multiple comorbidities presente... Hiatal hernia(HH) contents commonly include stomach, transverse colon, small intestine, and spleen but herniation of the pancreas is an extremely rare phenomenon.79-year-old female with multiple comorbidities presented to emergency department with complaints of weight loss for 6 mo and abdominal pain for one day. Physical examination revealed cachectic and dehydrated female and bowel sounds could be auscultated on the right side of chest. Computed tomography of the chest and abdomen revealed interval enlargement of a massive HH,containing stomach and much of the bowel as well as pancreas and distal extrahepatic biliary duct, probably responsible for obstructive effect upon same. There was increased prominence of the pancreas consistent with pancreatitis. There was a large HH causing obstructive effect with dilated biliary system along gall bladder wall edema and pancreatitis. Patient clinical status improved with conservative treatment.HH presenting with acute pancreatitis is a serious diagnostic and therapeutic challenge. The initial management is conservative, even if the abdominal content has herniated to mediastinum. The incentive spirometry can be utilized in the conservative of the large HH. After stabilization of the patient, elective surgical intervention remains the mainstay of the management. Definitive treatment will vary from case to case depending on the acuity of situation and comorbidities. 展开更多
关键词 Hiatal HERNIA PANCREATITIS HEPATITIS Para-esophageal HERNIA Gastropexy Pancreatic HERNIATION DIAPHRAGMATIC HERNIA Percutaneous endoscopic GASTROSTOMY Case report
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Enhancement of Effective Accumulation of Atoms during Fabrication of Al Microsphere 预览
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作者 Faizul Mohammad Kamal Md. Nazrul Islam Khan 《显微镜研究(英文)》 2019年第4期39-46,共8页
Microspheres of Al have been successfully fabricated utilizing electromigration using sudden change in geometrical shape of a specimen. The experimental sample was a passivated Al line with a hole at the transitional ... Microspheres of Al have been successfully fabricated utilizing electromigration using sudden change in geometrical shape of a specimen. The experimental sample was a passivated Al line with a hole at the transitional area of the sample. The hole was used to control the accumulation and discharge process. The formation of the microsphere is enhanced by controlling temperature and current density. The atomic flux was increased with the increasing current density that was happened along the electron flow direction in the small region at the geometrical shape of the sample. 展开更多
关键词 ELECTROMIGRATION ATOMS MIGRATION MICROSPHERE ACCUMULATION
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Socio-Demographic Characteristics and Risk Factors Contributing Pulmonary Tuberculosis Infection and Recent Transmission 预览
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作者 S. M. Shahriar Rizvi Shirin Tarafder +3 位作者 S. M. Mostofa Kamal Shaheda Anwar Fatima Tuj Johora Shamim Hossain 《结核病研究(英文)》 2019年第4期228-237,共10页
Host factors, environmental factors, genetic diversity and distinct phylogeographic distribution of Mycobacterium tuberculosis (MTB) contribute to regional differences in drug resistance. Bangladesh remains among the ... Host factors, environmental factors, genetic diversity and distinct phylogeographic distribution of Mycobacterium tuberculosis (MTB) contribute to regional differences in drug resistance. Bangladesh remains among the top 20 high Multi drug resistant tuberculosis (MDR-TB) burden countries of the world. This cross sectional study was conducted to identify the socio demographic characteristics and the risk factors contributing Pulmonary tuberculosis (PTB) infection. These characteristics and risk factors were further investigated among the clustered isolates. Total 60 culture isolates consist of 40 RR and 20 rifampicin sensitive (RS) isolates were enrolled in this study. Laboratory works were done in National Tuberculosis Reference Laboratory (NTRL) and Department of Microbiology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh. All 60 samples were confirmed as MTB by MPT 64 antigen detection. Two samples were excluded for possible cross contamination and two for failing to give PCR product for most of the locus. So, finally 56 samples were further analyzed for results. Four isolates were distributed within two clusters which were belonged to Beijing lineage. Socio demographic data and risk factors analysis of this study found significant male predominance (p = 0.04) with history of smoking (p = 0.01) and previous anti-TB treatment (p = 0.012) as the significant risk factors for RR TB. 展开更多
关键词 TUBERCULOSIS SOCIO-DEMOGRAPHIC Beijing LINEAGE EPIDEMIOLOGY
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Assessment of glacier stored water in Karakoram Himalaya using satellite remote sensing and field investigation
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作者 Kamal Kant SINGH Harendra Singh NEGI Dhiraj Kumar SINGH 《山地科学学报:英文版》 SCIE CSCD 2019年第4期836-849,共14页
Karakoram Himalaya(KH) has continental climatic conditions and possesses largest concentration of glaciers outside the polar regions. The melt water from these glaciers is a major contributor to the Indus river. In th... Karakoram Himalaya(KH) has continental climatic conditions and possesses largest concentration of glaciers outside the polar regions. The melt water from these glaciers is a major contributor to the Indus river. In this study, various methods have been used to estimate the ice volume in the Karakoram Range of glaciers such as Coregistration of Optically Sensed Images and Correlation(COSI-Corr) method and Area-Volume relations. Landsat 8 satellite data has been used to generate the ice displacement, velocity and thickness map. Our study for 558 Karakoram glaciers revealed that the average ice thickness in Karakoram is 90 m. Ground Penetrating Radar(GPR) survey has been conducted in one of the KH glacier i.e. Saser La glacier and the collected GPR data is used for the validation of satellite derived thickness map. GPR measured glacier thickness values are found comparable with satellite estimated values with RMSE of 4.3 m. The total ice volume of the Karakoram glaciers is estimated to be 1607±19 km3(1473±17 Gt), which is equivalent to 1473±17 km3 of water equivalent. Present study also covers the analysis of glacier surface displacement, velocity and ice thickness values with reference to glacier mean slope. 展开更多
关键词 GLACIER COSI-Corr KARAKORAM Range Ground PENETRATING RADAR GPR Volume-Area
Gastric per-oral endoscopic myotomy: Current status and future directions 预览
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作者 Alexander Podboy Joo Ha Hwang +5 位作者 Linda A Nguyen Patricia Garcia Thomas A Zikos Afrin Kamal George Triadafilopoulos John O Clarke 《世界胃肠病学杂志:英文版》 SCIE CAS 2019年第21期2581-2590,共10页
Gastroparesis, or symptomatic delayed gastric emptying in the absence of mechanical obstruction, is a challenging and increasingly identified syndrome. Medical options are limited and the only medication approved by t... Gastroparesis, or symptomatic delayed gastric emptying in the absence of mechanical obstruction, is a challenging and increasingly identified syndrome. Medical options are limited and the only medication approved by the Food and Drug Administration for treatment of gastroparesis is metoclopramide, although other agents are frequently used off label. With this caveat, first-line treatments for gastroparesis include dietary modifications, antiemetics and promotility agents, although these therapies are limited by suboptimal efficacy and significant medication side effects. Treatment of patients that fail first-line treatments represents a significant therapeutic challenge. Recent advances in endoscopic techniques have led to the development of a promising novel endoscopic therapy for gastroparesis via endoscopic pyloromyotomy, also referred to as gastric per-oral endoscopic myotomy or per-oral endoscopic pyloromyotomy. The aim of this article is to review the technical aspects of the per-oral endoscopic myotomy procedure for the treatment of gastroparesis, provide an overview of the currently published literature, and outline potential next directions for the field. 展开更多
关键词 Gastroparesis GASTRIC per-oral ENDOSCOPIC MYOTOMY Per-oral ENDOSCOPIC PYLOROMYOTOMY MYOTOMY ENDOSCOPIC MYOTOMY Peroral ENDOSCOPIC MYOTOMY GASTRIC emptying
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Hepatitis in slaughterhouse workers 预览
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作者 Hassan Tariq Muhammad Umar Kamal +5 位作者 Jasbir Makker Sara Azam Usman Ali Pirzada Vaniza Mehak Kishore Kumar Harish Patel 《世界肝病学杂志:英文版(电子版)》 2019年第1期37-49,共13页
Slaughterhouse workers (SHW) are at increased risk of hepatitis which can occur due to different organisms and should be investigated for viral, bacterial, and parasitic organisms. Slaughter house personnel including ... Slaughterhouse workers (SHW) are at increased risk of hepatitis which can occur due to different organisms and should be investigated for viral, bacterial, and parasitic organisms. Slaughter house personnel including butchers are at a higher risk of infections from cuts and blood-letting, with the possible risk of the transmission of blood-borne pathogens to their colleagues. The objective of this review is to evaluate the common etiologies of hepatitis in SHW which will assist in the assessment of these patients presenting with transaminitis. Types of Microorganisms causing hepatitis with their reservoirs, routes of transmission, laboratory diagnosis, clinical features, treatment options and preventive strategies are included in this review. Proper investigation and awareness is of utmost importance as it causes significant financial constraints derived from workers health cost and from livestock production losses when the disease is confirmed. The work up is essential because infected workers might be a source of infections to other colleagues, family and the consumers. 展开更多
关键词 HEPATITIS SLAUGHTERHOUSE workers LIVER INFECTIONS Transaminitis OCCUPATIONAL safety ABATTOIR
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Technical Investigation on V2G,S2V,and V2I for Next Generation Smart City Planning 预览
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作者 MD.Shahrukh Adnan Khan Kazi Mahtab Kadir +3 位作者 Khandaker Sultan Mahmood Md.Ibrahim Ibne Alam Ainun Kamal Md.Mamoon Al Bashir 《电子科技学刊:英文版》 CAS CSCD 2019年第4期300-316,共17页
The paper investigates a few of the major areas of the next generation technological advancement,“smart city planning concept”.The areas that the paper focuses are vehicle to grid(V2G),sun to vehicle(S2V),and vehicl... The paper investigates a few of the major areas of the next generation technological advancement,“smart city planning concept”.The areas that the paper focuses are vehicle to grid(V2G),sun to vehicle(S2V),and vehicle to infrastructure(V2I).For the bi-directional crowd energy single entity concept,V2G and building to grid(B2G)are the primary parts of distributed renewable generation(DRG)under smart living.This research includes an in-depth overview of this three major areas.Next,the research conducts a case analysis of V2G,S2V,and V2I along with their possible limitations in order to find out the novel solutions for future development both for academia and industry levels.Lastly,few possible solutions have been proposed to minimize the limitations and to develop the existing system for future expansion. 展开更多
关键词 Crowd energy distributed renewable smart city sun to vehicle(S2V) vehicle to grid(V2G) vehicle to
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新型胶原基质在美学区种植同期行引导骨再生术中的应用可增加组织厚度:一项可行性研究
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作者 Vivianne Chappuis Kamal Shahi +6 位作者 Ramona Buser Edi Koller Tim Joda Mauricio Reyes Daniel Buser 贾凌璐(译) 徐新(审) 《中国口腔医学继续教育杂志》 2019年第2期65-71,共7页
本系列病例的目的,是将一种新型可吸收胶原基质(collagen matrix,CMX)应用于美学区种植同期行引导骨再生(guided bone regeneration.GBR)术中.评估其在8周愈合期内增强组织厚度的安全性和可行性。使用超声波装置测定种植位点和邻牙的软... 本系列病例的目的,是将一种新型可吸收胶原基质(collagen matrix,CMX)应用于美学区种植同期行引导骨再生(guided bone regeneration.GBR)术中.评估其在8周愈合期内增强组织厚度的安全性和可行性。使用超声波装置测定种植位点和邻牙的软组织厚度。通过连续数字表面模型叠加牙周参数评估整体组织轮廓变化。牙周参数和患者相关结果显示无显著变化。GBR联合新型CMX使得植入部位的软组织厚度在8周后显著增加156mm.且从4周到8周软组织没有显著减少。整体组织轮廓在距粘膜边缘5mm处增加最为显著.与种植体肩部区域的组织增加相对应。8周后邻牙未见受到影响。 展开更多
关键词 软组织厚度 引导骨再生 种植体 型胶原 美学 基质 再生术 MATRIX
Outcomes of Early Primary Endoscopic Realignment and Delayed Reconstruction in the Management of Posterior Urethral Injury in Male 预览
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作者 Mohammad Nazmul Huda Prodyut Kumar Saha +8 位作者 A. K. M. Shahidur Rahman Mohammad Ibrahim Ali A. S. M. Humayun Kabir Munirunnessa   Yeasmin Akter Md. Mostafizur Rahmen Jannate Shaina Islam Nahid Kamal 《生物科学与医学(英文)》 2019年第10期1-16,共16页
Background: Posterior urethral injury usually occurs in male patients with pelvic fractures. Posterior urethral injuries are associated with considerable morbidity including urinary incontinence, erectile dysfunction ... Background: Posterior urethral injury usually occurs in male patients with pelvic fractures. Posterior urethral injuries are associated with considerable morbidity including urinary incontinence, erectile dysfunction and urethral stricture. Objective: To compare the outcomes between early primary endoscopic realignment and delayed reconstruction in the management of male patients of posterior urethral injury. Methodology: This prospective study was conducted in the department of urology and department of casualty, Dhaka Medical College Hospital, Dhaka, Bangladesh from July 2015 to June 2017 among 50 male patients with posterior urethral injury. Fifty patients were randomly allocated into two groups;the group A consisted of 24 patients underwent early primary endoscopic realignment within 10 days after posterior urethral injury and the group B consisted of 26 patients underwent delayed reconstruction in form of anastomotic urethroplasty after 3 months. All patients were followed up at 3rd, 6th and 9th month after the procedure. Outcome variables were post-operative urethral stricture, urinary incontinence and erectile dysfunction. Data were analyzed and compared by statistical tests. Results: The mean (±SD) age of the study patients was almost similar between the groups (28.8 ± 8.4 vs. 27.4 ± 7.2 years, p = 0.486). In group A, 83.33% patients developed postoperative urethral stricture, none of them developed urinary incontinence and 20.83% developed erectile dysfunction;On the other hand, in group B, these rates were 38.46%, 23.07% and 38.46% respectively. Postoperative urethral stricture formation was significantly higher in Group A (p = 0.0012) but urinary incontinence and erectile dysfunction rates were significantly higher in Group B (p = 0.018 and p = 0.042 respectively). Conclusion: Early primary endoscopic realignment is better than delayed reconstruction in the management of male patients with posterior urethral injury. It provides less postoperative complications like urinary incontinence and erectile 展开更多
关键词 ENDOSCOPIC REALIGNMENT Erectile Dysfunction URINARY INCONTINENCE URETHRAL Injury URETHRAL STRICTURE
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Design and Performance of PV Dust Cleaning System in Medina Region 预览
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作者 Khaled S. Al Qdah Saleh A. Abdulqadir +4 位作者 Nawaf Y. Al Harbi Abdullah Z. Soqyyah Kamal J. Isa Mohmmed Y. Alharbi Nasser M. Binsaad 《电力能源(英文)》 2019年第11期1-14,共14页
This work aims to design a cleaning system for the solar PV panels under Medina climatic conditions. This system powered by the PV module itself. Full cleaning system has been designed and tested utilizing a wiper and... This work aims to design a cleaning system for the solar PV panels under Medina climatic conditions. This system powered by the PV module itself. Full cleaning system has been designed and tested utilizing a wiper and water jet to remove the accumulated dust and other dirt from solar panels surface. The proposed cleaning system can be worked for long time efficiently. All the strength system components were examined and found to be stable and reliable. Also, the performance of cleaning system evaluated and comparison between the clean and dusty module performance has been conducted. The system performance has been evaluated for both clean and dusty panel at variable inputs of solar radiation. At input power of 805 W/m2, the efficiency found to be 13.78% for the cleaning panel and 9% for dusty panel, whereas at the input power of 460 W/m2, the estimated efficiency was 12.6% and 7.3% for clean and dusty panel respectively. Significant reduction in the efficiency has been reported as 35% and 42% for both cases. Therefore, the present work can be considering as a promising and efficient system to solve the problem of poor performance of the photovoltaic cells in areas that experience dusty environment and external pollutants. In addition, it is safe clean and economic system. 展开更多
关键词 DUST Performance PHOTOVOLTAIC SOLAR RADIATION CLIMATIC Conditions
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Geology and Geochemistry of the Chromiferous Mineralization in the External Zone of the Pan-African Dahomeyides Belt, Northwestern Benin (Gulf of Guinea, West Africa) 预览
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作者 Luc Adissin Glodji Renaud Sa?zonou +3 位作者 Fatchéssin Bruno Adjo Adiss Kamal Issifou Fatiou Soulémana Yessoufou Basile Adjo Kanon 《地球科学国际期刊(英文)》 2019年第12期1068-1080,共13页
Occurrences of chromium mineral exist in Bénin within the external nappes of the Pan-African Dahomeyides belt. These chromite deposits are podiform types and hosted in the serpentinite. Blackish color, the chromi... Occurrences of chromium mineral exist in Bénin within the external nappes of the Pan-African Dahomeyides belt. These chromite deposits are podiform types and hosted in the serpentinite. Blackish color, the chromite appears under microscope in transmitted light, as cracked phenocrystals with tangles of the serpentinite venules. Chemical analyses using X-ray fluorescence spectrometer showed the chromite ore consists of about 38% Cr2O3 and total (Cr2O3 + Al2O3) is 60%. This chromiferous mineralisation resulted from the magmatic cumulates formation by fractional crystallization of an ultramafic magma. 展开更多
关键词 Geology Geochemistry CHROMITE SERPENTINITE Buem BENIN
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