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社区卫生服务与其高端医疗资源共享体系创新 被引量:11
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作者 李安明 段文岚 +1 位作者 俞思伟 董建华 《医学与哲学(A)》 北大核心 2007年第11期13-15,共3页
从公共管理新视角,重点探讨城市社区卫生服务与其高端医疗资源基于区域健康信息互操作的发展战略,旨在为促进我国医疗卫生体制改革,创新提出"新型和谐的城市卫生服务体系",实现资源共享,适应我国社会经济发展和居民健康需求,... 从公共管理新视角,重点探讨城市社区卫生服务与其高端医疗资源基于区域健康信息互操作的发展战略,旨在为促进我国医疗卫生体制改革,创新提出"新型和谐的城市卫生服务体系",实现资源共享,适应我国社会经济发展和居民健康需求,为政府管理及其公共政策提供信息支持服务。 展开更多
关键词 社区卫生服务 医院管理 卫生服务体系 卫生信息 公共管理
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Fuzzy-Based Sentiment Analysis System for Analyzing Student Feedback and Satisfaction 被引量:5
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作者 Yun Wang Fazli Subhan +2 位作者 Shahaboddin Shamshirband Muhammad Zubair Asghar Ikram UllahAmmara Habib 《Computers, Materials & Continua》 SCIE EI 2020年第2期631-655,共25页
The feedback collection and analysis has remained an important subject matter for long.The traditional techniques for student feedback analysis are based on questionnaire-based data collection and analysis.However,the... The feedback collection and analysis has remained an important subject matter for long.The traditional techniques for student feedback analysis are based on questionnaire-based data collection and analysis.However,the student expresses their feedback opinions on online social media sites,which need to be analyzed.This study aims at the development of fuzzy-based sentiment analysis system for analyzing student feedback and satisfaction by assigning proper sentiment score to opinion words and polarity shifters present in the input reviews.Our technique computes the sentiment score of student feedback reviews and then applies a fuzzy-logic module to analyze and quantify student’s satisfaction at the fine-grained level.The experimental results reveal that the proposed work has outperformed the baseline studies as well as state-of-the-art machine learning classifiers. 展开更多
关键词 Student feedback analysis sentiments opinion words polarity shifters lexicon-based
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Factors influencing the internet banking adoption decision in North Cyprus: an evidence from the partial least square approach of the structural equation modeling 被引量:2
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作者 Hiba Alhassany Faisal Faisal 《Financial Innovation》 2018年第1期422-442,共21页
Purpose:This paper aims to examine how the adoption decision of the internet banking in North Cyprus would be affected based on the following dimensions;the technology features,the personal characteristics,the social ... Purpose:This paper aims to examine how the adoption decision of the internet banking in North Cyprus would be affected based on the following dimensions;the technology features,the personal characteristics,the social environment and the expected risk.Design/methodology/approach:A self-administered survey was conducted with 291 participants responded to it.The partial least square approach of the structural equation modeling(PLS-SEM)is employed to investigate the direct effects of the proposed factors on the adoption decision.Additionally,the mediation test is used to examine indirect effects.Findings:Results showed that even though the participants appreciated the benefits of the online banking as the perceived usefulness factor exerts the greatest direct effect,they would rather use clear and easy-to-use websites,adding to that their assessments of the usefulness of these services are significantly influenced by the surrounding people’s views and prior experience.This is demonstrated by the total effects of the perceived ease of use and the subjective norm factors,which are greater than the direct effect of the perceived usefulness factor since both of these factors have significant direct and indirect effects mediated by the perceived usefulness factor.The negative impact of the perceived risk factor is weak compared to the previous factors.While the personal innovativeness factor showed the weakest effect among the proposed factors. 展开更多
关键词 Behavioral theories Technology adoption TAM Subjective norm Personal innovativeness Perceived risk Partial least square Structural equation modeling
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Photokilling of waterborne-resistant pathogenic bacteria using cobalt-doped zinc oxide doped on reduced graphene oxide nanoparticles 被引量:2
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作者 Ameer Muhammad Khan Laiba Pervez +7 位作者 Jonathan Celli Mutiullah Khattak Maqdad Ullah ZiaUllah Shah Muhammad Mustafa Khan Muhammad Nadeem Sulaiman Faisal Akhtar Nadhman 《Journal of Innovative Optical Health Sciences》 SCIE EI CAS 2022年第4期1-10,共10页
This study is aimed at the chemical synthesis of light-activated cobalt-doped zinc oxide and its further doping on reduced graphene oxide(RGO)and assessment of its antibacterial activity on antibiotic-resistant waterb... This study is aimed at the chemical synthesis of light-activated cobalt-doped zinc oxide and its further doping on reduced graphene oxide(RGO)and assessment of its antibacterial activity on antibiotic-resistant waterborne pathogens including Enterococcus faecalis,Staphylococcus aureus,Klebsiella pneumonia,and Pseudomonas aeruginosa.The synthesized nanoparticles were characterized via UV–vis spectroscopy,scanning electron microscopy(SEM),and energy-dispersive X-ray spectroscopy(EDS).The minimal inhibitory concentration(MIC)of nanoparticles portrayed a significant killing of both Gram-positive and Gram-negative bacteria.The synthesized nanoparticles were further found as active killers of bacteria in drinking water.Further,these nanoparticles were found photothermally active alongside ROS generators.The photokilling activity makes them ideal replacement candidates for traditional water filters. 展开更多
关键词 MDR BACTERIA graphene oxide doping photokilling ZnO.
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Precise Seismic Substructural Model of the Eocene Chorgali Limestone in the Turkwal Oil Field, Central Potwar, Pakistan 被引量:1
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作者 Khawar Ashfaq AHMED Sarfraz KHAN +3 位作者 Mahmood SULTAN UMAIR Bin Nisar Kalim ULLAH Al-Hseinat MU’AYYAD 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2019年第6期1711-1720,共10页
The precise seismic substructural interpretation of the Turkwal oil field in the Central Potwar region of district Chakwal of Pakistan has been carried out. The research work was confined to the large fore-thrust that... The precise seismic substructural interpretation of the Turkwal oil field in the Central Potwar region of district Chakwal of Pakistan has been carried out. The research work was confined to the large fore-thrust that serves as an anticlinal structural trap through ten 2 D seismic lines. A precise seismic substructural model of the Eocene Chorgali Limestone with precise orientation of thrust and oblique slip faults shows the presence of a huge fracture, which made this deposit a good reservoir. The abrupt surface changes in dip azimuth for the Eocene Chorgali Limestone verifies the structural trends and also the presence of structural traps in the Turkwal field. The logs of three wells(Turkwal deep X-2, Turkwal-01 and Fimkassar-01) were analyzed for petrophysical studies, well synthetic results and generation of an Amplitude Versus Offset(AVO) model for the area. The AVO model of Turkwal deep X-2 shows abrupt changes in amplitude, which depicts the presence of hydrocarbon content. Well correlation technique was used to define the overall stratigraphic setting and the thickness of the reservoir formation in two wells, Turkwal-01 and Turkwal deep X-2. The Eocene Chorgali Limestone in Turkwal-01 is an upward thrusted anticlinal structure and because of the close position of both wells to the faulted anticlinal structure, its lesser thickness differs compared to Turkwal deep X-2. The overall results confirm that the Turkwal field is comparable to several similar thrust-bound oil-bearing structures in the Potwar basin. 展开更多
关键词 2D seismic well correlation fore-thrust structural traps AVO model Eocene Chorgali Limestone and Basement Potwar
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Geochemistry and Mineralogy of Paleocene Coal from the Padhrar and Darra Adam Khel Coalfields of Pakistan 被引量:1
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作者 Muhammad UMAIR YANG Ruidong +1 位作者 CHENG Wei Salman Ahmed KHATTAK 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2022年第6期2056-2073,共18页
Pakistan is rich in coal resources,which amount to around 186 billion tons.The Paleocene Padhrar and Darra Adam Khel coalfields are located in the Central Salt Range Punjab Province and the Khyber Pakhtunkhwa Province... Pakistan is rich in coal resources,which amount to around 186 billion tons.The Paleocene Padhrar and Darra Adam Khel coalfields are located in the Central Salt Range Punjab Province and the Khyber Pakhtunkhwa Province,Pakistan,respectively.Padhrar coal has not been studied in detail and the Darra Adam Khel coalfields are newlydiscovered,so no research has been done,due to security considerations.In this study,an attempt has been made to study the geochemical and mineralogical characteristics of the Padhrar and Darra Adam Khel coals,in order to learn about the coal quality,element enrichment mechanism,sedimentary medium conditions and potentially valuable elements for coal utilization.The Padhrar and Darra Adam Khel coals are low to medium ash,low moisture content,high in volatiles and high total sulfur coal.The vitrinite reflectance in Darra Adam Khel coal is higher than in Padhrar coal,indicating either a greater burial depth or the effects of Himalayan tectonism.The vitrinite content is dominant in the Padhrar and Darra Adam Khel coals,followed by inertinite and liptinite,the major minerals including quartz,clay minerals,calcite and pyrite.The trace elements Ni,As,Be Zn,Ge,Mo,Ta,W,Co and Nb,Sn,Hf,Ta,Pb,Th,Cd,In,Be,V,Cr,Zr,Ag,Li,W and Co are concentrated in some of the Padhrar and Darra Adam Khel coal samples,respectively.The Padhrar coal shows positive Ce,Eu and Gd anomalies,with most of the Darra Adam Khel coal showing negative Ce,Eu and positive Gd anomalies with high LREE.The Al2O3/TiO2 values indicate that the sediment source of the Padhrar and Darra Adam Khel coals is mostly related to intermediate igneous rocks.The Sr/Ba,SiO2+Al2O3,Fe2O3+CaO+MgO/SiO2+Al2O3 and high sulfur content in the Padhrar and Darra Adam Khel coals indicate epithermal and marine water influence with a tidal flat,coal-forming environment and a deltaic coal-forming environment,respectively. 展开更多
关键词 MINERAL trace elements Paleocene Padhrar coal Darra Adam Khel coal Pakistan
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Liver-Tumor Detection Using CNN ResUNet 被引量:1
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作者 Muhammad Sohaib Aslam Muhammad Younas +6 位作者 Muhammad Umar Sarwar Muhammad Arif Shah Atif Khan MIrfan Uddin Shafiq Ahmad Muhammad Firdausi Mazen Zaindin 《Computers, Materials & Continua》 SCIE EI 2021年第5期1899-1914,共16页
Liver tumor is the fifth most occurring type of tumor in men and the ninth most occurring type of tumor in women according to recent reports of Global cancer statistics 2018.There are several imaging tests like Comput... Liver tumor is the fifth most occurring type of tumor in men and the ninth most occurring type of tumor in women according to recent reports of Global cancer statistics 2018.There are several imaging tests like Computed Tomography(CT),Magnetic Resonance Imaging(MRI),and ultrasound that can diagnose the liver tumor after taking the sample from the tissue of the liver.These tests are costly and time-consuming.This paper proposed that image processing through deep learning Convolutional Neural Network(CNNs)ResUNet model that can be helpful for the early diagnose of tumor instead of conventional methods.The existing studies have mainly used the two Cascaded CNNs for liver segmentation and evaluation of Region Of Interest(ROI).This study uses ResUNet,an updated version of U-Net and ResNet Models that utilize the service of Residential blocks.We apply over method on the 3D-IRCADb01 dataset that is based on CT slices of liver tumor affected patients.The results showed the True Value Accuracy around 99%and F1 score performance around 95%.This method will be helpful for early and accurate diagnose of the Liver tumor to save the lives of many patients in the field of Biotechnology. 展开更多
关键词 LIVER TUMOR DIAGNOSE ResUNet CNNS SEGMENTATION
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A Seismic Hazard Map Based on Geology and Shear-wave Velocity in Rawalpindi–Islamabad,Pakistan
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作者 Sarfraz KHAN Muhammad WASEEM M.Asif KHAN 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2021年第2期659-673,共15页
The‘twin cities’district of Rawalpindi–Islamabad is among the most endangered seismic regions in Pakistan,with the seismic hazard assessed(0.32 g)to intensity IX MMI for a 475-year return period.A seismic hazard ma... The‘twin cities’district of Rawalpindi–Islamabad is among the most endangered seismic regions in Pakistan,with the seismic hazard assessed(0.32 g)to intensity IX MMI for a 475-year return period.A seismic hazard map for Rawalpindi–Islamabad is presented herein,based on 85 shear-wave velocity(VS)profiles obtained through geophysical H/V measurements and from the geological map of the region.Relationships between the average top thirty-meter shear-wave velocities(VS30)and surficial geological units have been determined.The peak ground acceleration(PGA)maps for 150,475 and 2475-year return periods were converted into a seismic intensity map.Intensity increments for different soils were used to compute PGA values for 150,475 and 2475-year return periods.Sites located on softer ground experienced a higher degree of damage from moderate earthquakes.Due to the presence of soft clay or liquefiable soil and lateral spreading,a few locations may be classified as hybrid sites class C and D.This map is a critical step in facilitating code-based site classification and seismic design throughout Rawalpindi–Islamabad.Although the seismic hazard map based on seismic intensities is no longer used in engineering geology,it is still important in seismological analysis and for civil protection purposes. 展开更多
关键词 seismic hazard site classification intensity increment engineering geology Rawalpindi-Islamabad
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Surface plasmon polaritons induced reduced hacking
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作者 Bakhtawar Muhammad Haneef Humayun Khan 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第6期379-384,共6页
There is always need for secure transmission of information and simultaneously compact-size photonic circuits. This can be achieved if surface plasmon-polaritons(SPPs) are used as source of information, and the reduce... There is always need for secure transmission of information and simultaneously compact-size photonic circuits. This can be achieved if surface plasmon-polaritons(SPPs) are used as source of information, and the reduced hacking as the transmission phenomenon. In this article, an SPP-based reduced hacking scheme is presented at interface between atomic medium and metallic conductor. The SPP propagation is manipulated with conductivity of the metal. The delay or advance of the SPP is found to create nanosecond time gap which can be used for storing and sending the information safely. The reduced hacking is further modified with conductivity of the metal and the control parameters of the atomic medium. 展开更多
关键词 surface plasmons coherent control of atomic interactions with photons reduced hacking surface conductivity
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Research progresses of fibers in asphalt and cement materials:A review 被引量:1
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作者 Jing Li Ling Yang +5 位作者 Lu He Ruiwen Guo Xinyu Li Youchao Chen Yaseen Muhammad Yu Liu 《Journal of Road Engineering》 2023年第1期35-70,共36页
Asphalt mixtures and cement concrete are an important material in the construction of roads,highways and buildings,and there has been a lot of research about the improvement of their performance.Among them,fibers are ... Asphalt mixtures and cement concrete are an important material in the construction of roads,highways and buildings,and there has been a lot of research about the improvement of their performance.Among them,fibers are commonly used in the construction industry because of their superior properties as reinforcing materials that can provide a proper interfacial action between the fibers and the substrate.This review classifies fibers into natural fibers,inorganic fibers and polymer fibers according to their sources and properties.It summarizes and compares the characteristics,modification methods,usage requirements and research status of each type of fiber in asphalt and cement construction materials,and analyzes the problems and challenges faced by fibers in their applications.The evaluation results show that various types of fibers can enhance the fracture resistance,tensile strength and rutting resistance of asphalt to a certain extent,improve the high temperature performance and viscoelasticity of asphalt,and have a certain effect on the fatigue resistance and road water resistance of asphalt mixes.The fibers also provide better tensile,compressive and abrasion resistance to cement concrete and improve the brittleness and crack resistance of ordinary cement.Besides,for some defects of various types of fibers in construction materials,such as biodegradability,dispersibility and surface inertness of fibers,the targeted modification of fibers is introduced based on physical and chemical modification methods to improve the performance impact of modified fibers in various conditions of application. 展开更多
关键词 FIBER Modified asphalt Modified cement Engineering application
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Smart Object Detection and Home Appliances Control System in Smart Cities
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作者 Sulaiman Khan Shah Nazir Habib Ullah Khan 《Computers, Materials & Continua》 SCIE EI 2021年第4期895-915,共21页
During the last decade the emergence of Internet of Things(IoT)based applications inspired the world by providing state of the art solutions to many common problems.From traffic management systems to urban cities plan... During the last decade the emergence of Internet of Things(IoT)based applications inspired the world by providing state of the art solutions to many common problems.From traffic management systems to urban cities planning and development,IoT based home monitoring systems,and many other smart applications.Regardless of these facilities,most of these IoT based solutions are data driven and results in small accuracy values for smaller datasets.In order to address this problem,this paper presents deep learning based hybrid approach for the development of an IoT-based intelligent home security and appliance control system in the smart cities.This hybrid model consists of;convolution neural network and binary long short term model for the object detection to ensure safety of the homes while IoT based hardware components like;Raspberry Pi,Amazon Web services cloud,and GSM modems for remotely accessing and controlling of the home appliances.An android application is developed and deployed on Amazon Web Services(AWS)cloud for the remote monitoring of home appliances.A GSM device and Message queuing telemetry transport(MQTT)are integrated for communicating with the connected IoT devices to ensure the online and offline communication.For object detection purposes a camera is connected to Raspberry Pi using the proposed hybrid neural network model.The applicability of the proposed model is tested by calculating results for the object at varying distance from the camera and for different intensity levels of the light.Besides many applications the proposed model promises for providing optimum results for the small amount of data and results in high recognition rates of 95.34%compared to the conventional recognition model(k nearest neighbours)recognition rate of 76%. 展开更多
关键词 Hybrid deep learning model IOT smart cities home appliances control system and Amazon web services
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Ethnoveterinary medicines used against various livestock disorders in the flora of Shamozai Valley, Swat,KP Pakistan
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作者 Noor Muhammad Muhammad Khalil Ullah Khan +3 位作者 Nisar Uddin Niaz Ali Shariat Ullah Muhammad Umer 《Traditional Medicine Research》 2020年第5期377-388,共12页
Background:The Shamozai Valley of Swat District is remarkable with various plant treasures.Ethnoveterinary information offers folk remedies for livestock,which are cheaper than standard treatment methods and are readi... Background:The Shamozai Valley of Swat District is remarkable with various plant treasures.Ethnoveterinary information offers folk remedies for livestock,which are cheaper than standard treatment methods and are readily available.Methods:Different trips were organized for gathering(harvesting)and recording medicinal plants in the area during 2018.A total of 140 local residents were interviewed.Then,the obtained data were evaluated using used value,relative frequency citations,fidelity level,consensus index,and informant consensus factor.Results:In this study,41 plants were presented,and these plants were used commonly as medication for treating various livestock ailments.The therapeutic plants with most used value were Artemisia scoparia(0.607),Berberis lyceum Royle(0.610),Bromus japonicus(0.491),Avena sativa(0.482),Cannabis sativa L.(0.473),Capsicum annum L.(0.471),Cedrus deodara(0.462),and Chenopodium murale(0.453).On the basis of relative frequency citations values,the most quoted plant species by the indigenous people are Artemisia scoparia(0.760),Berberis lyceum(0.742),Bromus japonicus(0.731),Avena sativa(0.721),and Cannabis sativa L.(0.711).Consensus index percentage showed the highest for Artemisia scoparia(83.109%),followed by Berberis lyceum Royle(80.454%),whereas the ethnomedicinal plant species with most fidelity level were Artemisia scoparia(76.320%),Berberis lyceum Royle(73.403%),Bromus japonicus(72.013%),Avena sativa(71.024%),Cannabis sativa L.(69.322%),Capsicum annum L(68.344%),Cedrus deodara(67.215%),and Chenopodium murale(66.060%)for various disorders.Informant consensus factor ranged from 0.947 to 1.000,whereas different ailments viz.appetite-causing agent,carminative treatment,eye diseases,mouth ulcers,myiasis,pediculosis,septicemia,and tick infestation had maximum informant consensus factor value.Conclusion:The publics of Shamozai are deeply reliant on ethomedicinal plants for treating numerous livestock ailments.Folk information always offers a baseline for further phytochemical and pharmacologic study. 展开更多
关键词 Ethnoveterinary practices Medicinal plants Folk knowledge Livestock ailments Shamozai Valley
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A Decision-Based Hybrid Proxy Mobile IPv6 Scheme for Better Resources Utilization
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作者 Habib Ullah Khan Anwar Hussain Shah Nazir 《Computers, Materials & Continua》 SCIE EI 2022年第12期5151-5167,共17页
Seamless mobility is always one of the major requirements of modern-day communication.In a heterogeneous and massive IoT environment,efficient network-based mobility protocol such as proxy mobile IPv6(PMIPv6),is poten... Seamless mobility is always one of the major requirements of modern-day communication.In a heterogeneous and massive IoT environment,efficient network-based mobility protocol such as proxy mobile IPv6(PMIPv6),is potentially a good candidate for efficient mobility as well as resource utilization efficiency.Several extensions are devised for performance in the research domain.However,a multi-criterion decision-based resourceefficient PMIPv6 extension is required to achieve efficiency when network resources are overloaded.In this research,a multi-criterion decision-based PMIPv6 scheme is devised that provides better performance when the Local Mobility Anchor(LMA)or Mobile Access Gateway(MAG)is overloaded.The objective is achieved by monitoring the load status of MAG or LMA and based on their status,the proposed scheme adapts itself to provide seamless mobility in addition to optimal efficiency.The proposed scheme is compared with the existing LMA and MAG-based mobility management protocol extensions.Based on the analysis of the comparison,the obtained results prove that providing a decision-based PMIPv6 scheme is better for service continuity as well as optimal performance in the context of required buffering,handover efficiency,and necessary signaling cost. 展开更多
关键词 Proxy mobile IPv6 LMA MAG load balancing location-based PMIPv6
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Checklist of the First Recorded Spider Fauna in Sheringal, Khyber Pakhtunkhwa, Pakistan
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作者 Farzana Perveen Numan Khan 《Advances in Entomology》 2015年第3期94-100,共7页
The spiders are the member of the class Arachnida of the phylum Arthropoda with a hard cephalothorax and soft abdomen. They are environmental indicators and play an important role in biological control of insect popul... The spiders are the member of the class Arachnida of the phylum Arthropoda with a hard cephalothorax and soft abdomen. They are environmental indicators and play an important role in biological control of insect population. The present study was conducted to prepare the checklist of the first recorded spider fauna of the 6 quadrates, i.e., Daramdala, Doki, Guryaal, Samang, Shahoor and Sia-Sheringal of Sheringal, Dir Upper (DU), Khyber Pakhtunkhwa (KP), Pakistan during June 2013-July 2014. Ten species (spp) belonging to 7 families, and 10 genera (n = 123: total;n = 77: identified;n = 46: unidentified) were recorded. The family Opilionidae (n = 12): harvestmen spider, Hadrobunus grandis Sundevall, 1833;family, Hersiliidae (n = 6): two-tailed spider, Harsilia savignyi Lucas, 1836;family, Pholcidae (n = 10): cellar spider, Crossopriza lyoni Blackwall, 1867;family, Araneidae (n = 5): garden spider, Araneus diadematus Clerck, 1757;family, Gnaphosidae (n = 3): ground spider, Gnaphosa eucalyptus Ghafoor and Beg, 2002 were with one species;family, Sparassidae (n = 19), huntsman spider with 2 spp including Halconia insignis Thorell, 1836, and Isopeda tuhogniga Barrion and Litsinger, 1995;while the highest number of species caught from family Lycosidae (n = 20): wolf spider with 3 spp including Arctosa littorali Simon, 1897;Hippasa partita Takidar, 1970 and Pardosa distincta Backwall, 1867 were recorded. It was concluded that 7 families with 10 genera and species each, respectively, were identified from the study area. A detail study is required for further enhancing of the biodiversity of the spider fauna of Sheringal, KP, Pakistan for synthesis of the ethnozoopharmaco-products. 展开更多
关键词 ARACHNIDA Cephalothorax LYCOSIDAE Sparassidae SPIDER FAUNA
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Cactus-Shaped Frequency Reconfigurable Antenna for Sub 10 GHz Wireless Applications
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作者 Muhammad Irfan Wasi Ur Rehman Khan +10 位作者 Sadiq Ullah Naveed Mufti Muhammad Fawad Khan Rizwan Ullah Usman Ali Fazal Muhammad Faisal Althobiani Mohammed Alshareef Shadi Alghaffari Saifur Rehman V.R.Shamji 《Computer Systems Science & Engineering》 SCIE EI 2023年第6期2693-2704,共12页
This paper presents,a novel cactus shaped frequency reconfigurable antenna for sub 10 GHz wireless applications.PIN diode is utilized as an electrical switch to achieve reconfigurability,enabling operation in four dif... This paper presents,a novel cactus shaped frequency reconfigurable antenna for sub 10 GHz wireless applications.PIN diode is utilized as an electrical switch to achieve reconfigurability,enabling operation in four different frequency ranges.In the switch ON state mode,the antenna supports 2177-3431 and 6301-8467 MHz ranges.Alternatively,the antenna resonates within 2329-3431 and 4951-6718 MHz while in the OFF state mode.Radiation efficiency values,ranging from 68%to 84%,and gain values,ranging from 1.6 to 4 dB,in the operating frequency bands.the proposed antenna satisfy the practical requirements and expectations.The overall planner dimensions of the proposed antenna model is 40×21 mm^(2).Moreover,the measurement results from the prototype support the simulation results.Based on the frequency ranges supported by the antenna,it can be used for multiple wireless standards and services,including Worldwide interoperability and Microwave Access(WiMAX),Wireless Fidelity(Wi-Fi),Bluetooth,Long Term Evolution(LTE)and satellite communications.This increases its applicability for use in mobile terminals. 展开更多
关键词 ANTENNA frequency reconfigurable PIN diode SWITCH wireless technology
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Does financial depth impact economic growth in North Cyprus?
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作者 Turgut Türsoy Faisal Faisal 《Financial Innovation》 2018年第1期192-204,共13页
This study purpose is to connect the proxy of financial development which is total banking sector’s deposits with the economic growth in North Cyprus.The reason for using the total deposit differently with the existi... This study purpose is to connect the proxy of financial development which is total banking sector’s deposits with the economic growth in North Cyprus.The reason for using the total deposit differently with the existing literature is because North Cyprus is bank-based financial system.Therefore,this study provides an analysis of the connection between finance-growth nexus in North Cyprus from 1978 through 2015,using the autoregressive distributed lag(ARDL)model and combined cointegration to evaluate and verify the relationship.In addition,this research added the inflation rate to the model specification to investigate the inflation-growth interaction.The results revealed that both methods of cointegration provided robust evidence for a long-run relationship between financial debt and growth.The ARDL long-run and short-run coefficients showed the positive impact of depth and the negative impact of inflation on economic growth,thereby confirming the strength of the financegrowth and inflation-growth connections.Moreover,financial depth had a larger coefficient than the inflation rate.Finally,the VECM Granger causality test provided evidence for unidirectional causality from the total deposits and inflation rate to economic growth in North Cyprus.These results are significant for the policymakers of North Cyprus because the findings show that economic growth can be improved by enhancing the deposit rates in the financial system. 展开更多
关键词 Financial depth Inflation rate Economic growth ARDL Granger causality
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An alarming scenario in developing world:A looming of viral outbreaks
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作者 Faheem Anwar Abdullah +2 位作者 Shazma Wahab Komal Aman Ihteshamul Haq 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2022年第9期427-428,共2页
Pakistan has suffered from various infectious diseases including dengue,Crimean-Congo hemorrhagic fever(CCHF),polio and COVID-19 in the recent past[1,2].As per the World Health Organization reports(September 2022),609... Pakistan has suffered from various infectious diseases including dengue,Crimean-Congo hemorrhagic fever(CCHF),polio and COVID-19 in the recent past[1,2].As per the World Health Organization reports(September 2022),609.84 million confirmed cases have been reported globally with 6.5 million deaths.All through developing nations,Pakistan has documented the highest ratio of COVID-19(approximately 1.5 million)cases with approximately 30000 deaths since the first case was reported on 26th February 2020[3].In line,dengue epidemics are at their peak during monsoons and post-monsoons season(September-October). 展开更多
关键词 DISEASES globally APPROXIMATE
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Enhanced Pervaporative Separation of Thiophene/n-Heptane Using Metal Loaded PEBAX/PAN Membranes
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作者 Han Jianjian Wang Yidong +3 位作者 Hu Yongjie Liu Kun Muhammad Yaseen Hu Minzhuan 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2019年第3期36-45,共10页
The mass transfer of thiophene through pervaporation(PV) membranes could be facilitated by certain transitional metal ions like Ag+, Mn2+, and Cr3+ thanks to their p complexation with thiophene. In this study, Ag+, ... The mass transfer of thiophene through pervaporation(PV) membranes could be facilitated by certain transitional metal ions like Ag+, Mn2+, and Cr3+ thanks to their p complexation with thiophene. In this study, Ag+, Mn2+, and Cr3+ ions were loaded onto the polyether block amide(PEBAX)/PAN composite membranes and were tested on the performance for separation of thiophene/n-heptane mixture. Pervaporation test results showed that the pervaporative separation index increased significantly to 73.1%, 75.5%, and 97.2% at 30 oC for the Ag+-, Mn2+-, Cr3+-loaded PEBAX membranes, respectively,as compared to the pristine PEBAX/PAN composite membrane. 展开更多
关键词 transitional metal ion facilitated mass transfer of thiophene polyether block amide membrane PERVAPORATION desulfurization
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Influences of Marangoni convection and variable magnetic field on hybrid nanofluid thin-film flow past a stretching surface
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作者 Noor Wali Khan Arshad Khan +3 位作者 Muhammad Usman Taza Gul Abir Mouldi Ameni Brahmia 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第6期494-501,共8页
Investigations on thin-film flow play a vital role in the field of optoelectronics and magnetic devices.Thin films are reasonably hard and thermally stable but quite fragile.The thermal stability of a thin film can be... Investigations on thin-film flow play a vital role in the field of optoelectronics and magnetic devices.Thin films are reasonably hard and thermally stable but quite fragile.The thermal stability of a thin film can be further improved by incorporating the effects of nanoparticles.In the current work,a stretchable surface is considered upon which hybrid nanofluid thin-film flow is taken into account.The idea of augmenting heat transmission by making use of a hybrid nanofluid is a focus of the current work.The flow is affected by variations in the viscous forces,along with viscous dissipation effects and Marangoni convection.A time-constrained magnetic field is applied in the normal direction to the flow system.The equations governing the flow system are shifted to a non-dimensional form by applying similarity variables.The homotopy analysis method is employed to find the solution to the resultant equations.It is noticed in this study that the flow characteristics decline with augmentation of magnetic,viscosity and unsteadiness parameters while they increase with enhanced values of thin-film parameters.Thermal characteristics are supported by increasing values of the Eckert number and the unsteadiness parameter and opposed by the viscosity parameter and Prandtl number.The numerical impact of different emerging parameters upon skin friction and the Nusselt number is calculated in tabular form.A comparison of current work with established results is carried out,with good agreement. 展开更多
关键词 thin-film flow hybrid nanofluid viscous dissipation stretching surface homotopy analysis method
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Upgradation of Heavy Crude Oil Via Hydrodynamic Cavitation Through Variations in Asphaltenes
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作者 Li Kang Han Haibo +5 位作者 Lei Jie Wang Youhe Li Dekun Mark J.Rood Fazle Subhan Yan Zifeng 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2022年第2期23-33,共11页
In this work,Saudi heavy crude oil(SHCO)was upgraded by the hydrodynamic cavitation technique.The collapse of cavitation bubbles instantly produces extreme conditions such as high temperature,pressure,and jet flow and... In this work,Saudi heavy crude oil(SHCO)was upgraded by the hydrodynamic cavitation technique.The collapse of cavitation bubbles instantly produces extreme conditions such as high temperature,pressure,and jet flow and strong shear forces,which can play a significant role in the upgradation process.The results revealed that the viscosity and Conradson carbon residue of SHCO decreased from 13.61 to 7.22 mm^(2)/s and from 7.16%to 6.48%,respectively.True boiling point distillation findings showed that the vacuum residue(VR)decreased by 1%.Atmospheric-pressure photoionization Fourier-transform ion cyclotron resonance mass spectrometry,X-ray diffraction,dynamic light scattering,Fourier-transform infrared spectroscopy,and scanning electron microscopy were employed to characterize the molecular composition,crystalline structure,asphaltene aggregate particle size distribution,functional groups,and morphology,respectively,to understand the effects of hydrodynamic cavitation on asphaltenes.The obtained results demonstrate that hydrodynamic cavitation upgradation reduced the interaction forces between the asphaltene molecules,weakening the crystalline structure of the asphaltene aggregates,reducing the degree of association of the aromatic compounds in SHCO and asphaltenes,and decreasing the average particle size.The delayed coking properties of the VR were further investigated,and the cavitation treatment was found to decrease the coke yield by 1.85%and increase the liquid and gas yields by 1.52%and 0.33%,respectively.Hence,hydrodynamic cavitation can effectively enhance the processing performance of crude oil by improving the properties and structural characteristics of asphaltenes. 展开更多
关键词 hydrodynamic cavitation heavy oil upgradation asphaltene crystalline structure particle size distribution agglomeration force
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