检索结果-南通市图书馆

Subsurface Characterization for Groundwater Management nearby the Unfinished Obelisk Archeological Site, Aswan Governorate, Egypt

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Geology 2019年第11期9卷 839-860页

作者： abdulaziz M. abdulaziz Mining Petroleum and Metallurgical Engineering Department Faculty of Engineering Cairo University Giza Egypt

Recently, the area located within the Unfinished Obelisk (UO) archeological site showed numerous seepages and accumulations of groundwater in a small pond located a few meters from the Unfinished Obelisk. The Supreme Council of Antiques sponsored integrated geological, geophysical, and hydrogeological studies to identify the possible sources of groundwater and the optimum technique to manage the groundwater flow system that may jeopardize this invaluable sculpture. The geological units and the prevailing structure have been studied in detail using Landsat imagery and field work over two consecutive seasons. The field studies indicated the development of several fault/joint systems oriented mainly ENE-WSW with clear indications of mineralization and intensive weathering effects along these fabrics. Several resistivity (vertical seismic profile and resistivity imaging) measurements extending down to at least 20 m depth and Radar imaging down to 10 m depth are gathered to investigate the extension of outcrop units and the dominant structures prevailing the near subsurface. Geophysical data indicated the development of at least three hydrostratigraphic units arranged from top to bottom as valley fill, fractured/weathered granite, and slightly fractured to massive granitic unit. In addition, the major faults mapped by resistivity images helped to locate several observation wells and a production well to test the transmissivity across the groundwater system. The results of a pumping test indicated very low aquifer conductivity and the development of an aquitard with preferential vertical flow at the study area. This enforces a local interference through a shallow underground drainage system with sump and pump to maintain low groundwater level at the UO-archeological site.

关键词： Groundwater Management Resistivity Imaging Flow Regimes Fractured Granite Aquitard Unfinished Obelisk Aswan

Automatic Detection and Classification of Human Knee Osteoarthritis Using Convolutional Neural Networks

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第3期70卷 4279-4291页

作者： Mohamed Yacin Sikkandar S.Sabarunisha Begum abdulaziz AAlkathiry Mashhor Shlwan NAlotaibi Md Dilsad Manzar Department of Medical Equipment Technology College of Applied Medical SciencesMajmaah UniversityAl Majmaah11952Saudi Arabia Department of Chemical Engineering Sethu Institute of TechnologyKariapatti626115TamilnaduIndia Department of Physical Therapy College of Applied Medical SciencesMajmaah UniversityAlMajmaah11952Saudi Arabia Department of Nursing College of Applied Medical SciencesMajmaah UniversityAl Majmaah11952Saudi Arabia

Knee Osteoarthritis(KOA)is a degenerative knee joint disease caused by‘wear and tear’of ligaments between the femur and tibial ***,KOA is classified into four grades ranging from 1 to 4 based on the degradation of the ligament in between these two bones and causes suffering from impaired *** this space between bones through the anterior view of a knee X-ray image is solely subjective and *** classification of this process helps in the selection of suitable treatment processes and customized knee *** this research,a new automatic classification of KOA images based on unsupervised local center of mass(LCM)segmentation method and deep Siamese Convolutional Neural Network(CNN)is ***-order statistics and the GLCM matrix are used to extract KOA anatomical Features from segmented *** network is trained on our clinical data with 75 iterations with automaticweight updates to improve its validation *** assessment performed on the LCM segmented KOA images shows that our network can efficiently detect knee osteoarthritis,achieving about 93.2%accuracy along with multi-class classification accuracy of 72.01%and quadratic weighted Kappa of 0.86.

关键词： Osteoarthritis segmentation intensity value unsupervised neural network

A facile construction of heterostructured ZnO/Co_(3)O_(4) mesoporous spheres and superior acetone sensing performance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第6期32卷 1998-2004页

作者： Mengli Lei Xinran Zhou Yidong Zou Junhao Ma Fahad AAlharthi abdulaziz Alghamdi Xuanyu Yang Yonghui Deng Department of Chemistry State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsiChEMFudan UniversityShanghai 200433China Institute of Translational Medicine Shanghai UniversityShanghai 200444China Department of Chemistry College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

The rapid development of internet and internet of things brings new opportunities for the expansion of intelligent sensors,and acetone as a major disease detection indicator(i.e.,diabetes)making it become extremely important clinical ***,uniform mesoporous ZnO spheres were successfully synthesized via novel formaldehyde-assisted metal-ligand crosslinking *** order to adjust the pore structure of mesoporous ZnO,various mesoporous ZnO spheres were synthesized by changing weight percentage of Zn(NO_(3))_(2)·6 H_(2)O to tannic acid(TA).Moreover,highly active heterojunction mesoporous ZnO/Co_(3)O_(4)has been fabricated based on as-prepared ultra-small Co_(3)O_(4)nanocrystals(ca.3 nm)and mesoporous ZnO spheres by flexible impregnation *** from nano-size effect and synergistic effect of p-n heterojunction,mesoporous ZnO/Co_(3)O_(4)exhibited excellent acetone sensing performance with high selectivity,superior sensitivity and ***,5 wt%Co_(3)O_(4)embedded mesoporous ZnO sphere showed prominent acetone response(ca.46 for 50 ppm),which was about 11.5 times higher than that in pure ZnO sensing device,and it was also endowed high cyclic *** nanocrystals embedded hybrid material is expected to be used as promising efficient material in the field of catalysis and gas sensing.

关键词： Mesoporous materials P-N heterojunction Nanocrystal Nano-size effect Gas sensing

Fluconazole Prophylaxis in Neonates (Non-Systematic) Literature Review

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Pharmacology & Pharmacy 2016年第12期7卷 473-480页

作者： abdulaziz Almulhim College of Pharmacy University of Arizona Tucson AZ USA

Background: Nosocomial infection remains an important contributing factor for morbidity and mortality in neonates. Coagulase-negative staphylococci have emerged as the predominant pathogens of late onset sepsis. This is followed by staphylococcus aurous, gram negative bacilli, and fungi. Old studies noted that mortality due to candidemia was higher in infants weigh less than 2000 g after being exposed to risk factors. The prophylactic use of fluconazole for the prevention of IC in extremely low birth weight was first reported in 2001. Methods: Current guidelines from Europe and North America that refer to the treatment of fungal infections are included. Literature search was performed using Medline, Scopus and Cochrane Central Register of Controlled Trials through March, 2016. Conclusion: Mortality was not different in early studies. However, recent studies concluded that mortality was reduced in the fluconazole arms. Risk-based approach towards fluconazole prophylaxis seems to be safe and effective.

关键词： Invasive Candidiasis Neonates Preterm Fluconazole Prophylaxis Central Venous Catheters

Microseismic Imaging of Hydraulically Induced-Fractures in Gas Reservoirs: A Case Study in Barnett Shale Gas Reservoir, Texas, USA

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Geology 2013年第5期3卷 361-369页

作者： abdulaziz M. abdulaziz Mining Petroleum and Metallurgical Engineering Department Faculty of Engineering Cairo University Giza Egypt

Microseismic technology has been proven to be a practical approach for in-situ monitoring of fracture growth during hydraulic fracture stimulations. Microseismic monitoring has rapidly evolved in acquisition methodology, data processing, and in this paper, we evaluate the progression of this technology with emphasis on their applications in Barnett shale gas reservoir. Microseismic data analysis indicates a direct proportion between microseismic moment magnitude and depth, yet no relation between microseismic activity and either injection rate or injection volume has been observed. However, large microseismic magnitudes have been recorded where hydraulic fracturing stimulation approaches a fault and therefore the geologic framework should be integrated in such programs. In addition, the geometry of fracture growth resulted by proppant interactions with naturally fractured formations follows unpredictable fashion due to redirecting the injection fluids along flow paths associated with the pre-existing fault network in the reservoir. While microseismic imaging is incredibly useful in revealing the fracture geometry and the way the fracture evolves, recently several concerns have been raised regarding the capability of microseismic data to provide the fracture dimensional parameters and the fracture mechanism that could provide detailed information for reservoir characterization.

关键词： Microseismic Imaging Barnett Shale Fracture Monitoring Unconventional Reservoirs Stimulations

ARGUS: Interactive visual analysis of disruptions in smartphone-detected Bio-Behavioral Rhythms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Visual Informatics 2021年第3期5卷 39-53页

作者： Hamid Mansoor Walter Gerych abdulaziz Alajaji Luke Buquicchio Kavin Chandrasekaran Emmanuel Agu Elke Rundensteiner Worcester Polytechnic Institute USA

Human Bio-Behavioral Rhythms(HBRs)such as sleep-wake cycles(Circadian Rhythms),and the degree of regularity of sleep and physical activity have important health *** devices such as smartphones can sense HBRs by continuously analyzing data gathered passively by built-in sensors to discover important clues about the degree of regularity and disruptions in behavioral *** human behavior is complex and smartphone data is voluminous with many channels(sensor types),it can be challenging to make meaningful observations,detect unhealthy HBR deviations and most importantly pin-point the causes of *** work has largely utilized computational methods such as machine and deep learning approaches,which while accurate,are often not explainable and present few actionable insights on HBR patterns or *** assist analysts in the discovery and understanding of HBR patterns,disruptions and causes,we propose ARGUS,an interactive visual analytics *** a foundation of ARGUS,we design an intuitive Rhythm Deviation Score(RDS)that analyzes users’smartphone sensor data,extracts underlying twenty-four-hour rhythms and quantifies their degree of *** score is then visualized using a glyph that makes it easy to recognize disruptions in the regularity of *** also facilitates deeper HBR insights and understanding of causes by linking multiple visualization panes that are overlaid with objective sensor information such as geo-locations and phone state(screen locked,charging),and user-provided or smartphone-inferred ground truth *** array of visualization overlays in ARGUS enables analysts to gain a more comprehensive picture of HBRs,behavioral patterns and deviations from *** design of ARGUS was guided by a goal and task analysis study involving an expert versed in HBR and smartphone *** demonstrate its utility and generalizability,two different datasets were explored using ARGUS and our use ca

关键词： Interactive visual analytics Circadian rhythms Smartphone-sensed data

Butterfly fauna(Lepidoptera:Rhopalocera) of the Peter the Great Mountain range(Tajikistan)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Zoological Systematics 2016年第3期41卷 318-322页

作者： abdulaziz Davlatov Gexia Qiao Chunsheng Wu Key Laboratory of Zoological Systematics and Evolution the National Zoological Museum Institute of Zoology Chinese Academy of Sciences Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China

The article provides new data on the butterfly fauna of the Peter the Great Mountain range, especially the first reports of the analysis of the quantitative accounts on the number of butterflies. However, the presente... 详细信息

关键词： Tajikistan Peter the Great Mountain range quantitative accounts population,distribution.

Ordered porous metal oxide semiconductors for gas sensing

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2018年第3期29卷 405-416页

作者： Xinran Zhou Xiaowei Cheng Yongheng Zhu Ahmed A. Elzatahry abdulaziz Alghamdi Yonghui Deng Dongyuan Zhao Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials iChEM Fudan University Shanghai 200433 China College of Food Science and Technology Shanghai Ocean University Shanghai 201306 China Materials Sdence and Technology Program College of Arts and Sdences Qatar University Doha 2713 Qatar Center for Advanced Materials Qatar University Doha 2713 Qatar Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China

Among various gas sensing materials, metal oxide semiconductors have shown great potential as resistive type sensors. The ordered porous structural metal oxide semiconductors with well-defined meso- or macro-pores chemically synthesized via soft-templating method and nanocasting strategy have high porosity, highly interconnected pore channels and high surface area with enormous active sites for interacting with gaseous molecules. These features enable them good performance in gas sensing, including high sensitivity, fast response and recovery, good selectivity. This review gives a comprehensive summary about the porous metal oxides with focus on the synthesis methods, structure related properties, as well as the modification strategies for gas sensing improved performances.

关键词： Porous materials Metal oxides Templating-synthesis Gas sensing

Current knowledge of burn injury first aid practices and applied traditional remedies:a nationwide survey

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Burns & Trauma 2016年第4期4卷 292-298页

作者： Abdullah E.Kattan Feras AlShomer abdulaziz K.Alhujayri Abdullah Addar Albaraa Aljerian Plastic and Reconstructive Surgery Unit King Khalid University HospitalCollege of MedicineKing Saud University37 P.O.Box 7805Riyadh 11472Kingdom of Saudi Arabia

Background:Burn first aid awareness has been shown to reduce morbidity and *** present a report on the knowledge and practices of the Saudi population with regard to burn first aid and the application of traditional ***:An internet-based survey was conducted to assess the public’s knowledge on first aid practices and home remedies applied for burn injuries among Saudi ***:A total of 2758 individuals responded to the *** were 1178(42.7%)respondents who had previously received burn first aid *** thousand five hundred fifty respondents had a history of burn exposure in which burn injury first aid was applied as follows:1118(72.1%)removed clothing and accessories from the injured area;water was applied by 990(63.9%);among those who applied water,877(88.6%)applied cold water;and only 57(5.8%)did so for more than 15 *** the burn area was performed by 526(33.9%),and 985(63.5%)sought medical *** it comes to traditional remedies,2134(77.4%)knew of and/or implemented these remedies as first aid or to treat *** and toothpaste were the commonest among these remedies with 1491(69.9%)and 1147(53.7%),*** was associated with female gender(r=0.87,P<0.001),younger age group(19–25 years)(r=0.077,P<0.001),from central region(r=0.012,P<0.001),and university graduate(r=0.05,P=0.002).Nearly half of those who knew of traditional remedies did not have previous knowledge of burn first ***:Proper burn first aid is a simple,cheap,and accessible means of managing burns *** the majority of the respondents were university graduates(51.1%),knowledge and implementation of burn first aid was very *** healthcare agencies should review and promote a consistent guideline for burn first aid in an effort to tackle and minimize the effect of this grave injury.

关键词： Burn First aid Practices Traditional remedies