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m.lti-Physics Num.rical Sim.lation of Therm.electric Devices

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Journal of Electronics Cooling and Therm.l Control 2017年第4期7卷 123-135页

作者： Ibrahim.m. Abdel-m.taleb syed m. qadri Departm.nt of Electrical Engineering Northern Illinois University DeKalb IL USA

To optim.ze the perform.nce of a therm.electric device for a specific application, the device should be uniquely designed for the application. Achieving an optim.m.design requires accurate m.asurem.nts and credible analysis to evaluate the perform.nce of the device and its relationship with the device param.ters. To do that, we designed, fabricated, and tested four devices based on Bi2Te3 and Sb2Te3. To evaluate the accuracy of our analysis, experim.ntal m.asurem.nts were com.ared with the num.rical sim.lation perform.d using COm.OLTm. The two sets of results were found to be in full agreem.nt. This is a proof of the accuracy of our experim.ntal m.asurem.nts and the credibility of our sim.lation. The study shows that testing or sim.lating the devices without heat sink will lead to skewed results. This is because the junction will not hold its tem.eratures value, but will, instead, autom.tically change its value to the direction of therm.l equilibrium. The study shows also that there is no reciprocity between the input and the output characteristics of the devices. Therefore, a device optim.zed for cooling and heating m.y not be autom.tically optim.zed for energy harvesting. For heating and cooling, tem.erature sensitivity should be optim.zed;while for energy harvesting, voltage sensitivity should be optim.zed. Using heat sink, our devices achieved a voltage sensitivity of 187.77 &m.;V/K and a tem.erature sensitivity of 6.12 K/m..

关键词： Therm.electric Devices m.lti-Leg Devices Bi2Te3 Sb2Te3 COm.OL Fi-nite Elem.nt Sim.lation Voltage Sensitivity Tem.erature Sensitivity

An efficient perm.tation approach for SbPN-based sym.etric block ciphers

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Cybersecurity 2024年第2期7卷 113-130页

作者： m.r Nazish m.Tariq Banday Insha syed Sheena Banday Departm.nt of Electronics and Instrum.ntation Technology University ofKashmirSrinagar 190006India

It is challenging to devise lightweight cryptographic prim.tives efficient in both hardware and software that can provide an optim.m.level of security to diverse Internet of Things applications running on low-end constrained ***,an effcient hardware design approach that requires som. specific hardware resource m.y not be effcient if im.lem.nted in *** bit Perm.tation Network based ciphers such as PRESENT and GIFT are effcient,lightweight cryptographic hardware design *** ciphers introduce confusion and diffu-sion by em.loying a 4×4 static substitution box and bit *** bit-wise perm.tation is realised by sim.ple rerouting,which is m.st cost-effective to im.lem.nt in hardware,resulting in negligible power ***,this m.thod is highly resource-consum.ng in software,particularly for large block-sized ciphers,with each single-bit perm.tation requiring m.ltiple *** paper proposes a novel software-based design approach for perm.tation operation in Substitution bit Perm.tation Network based ciphers using a bit-banding *** conventional perm.tation using bit rotation and the proposed approach have been im.lem.nted,analysed and com.ared for GIFT and PRESENT ciphers on ARm.Cortex-m.-based LPC1768 developm.nt platform.with KEIL m.K used as an Integrated Developm.nt *** real-tim. perform.nce com.arison between conven-tional and the proposed approaches in term. of m.m.ry(RAm.ROm.footprint,power,energy and execution tim. has been carried out using ULINKpro and ULINKplus debug adapters for various code and speed optim.sation *** proposed approach substantially reduces execution tim.,energy and power consum.tion for both PRE-SENT and GIFT ciphers,thus dem.nstrating the effciency of the proposed m.thod for Substitution bit Perm.tation Network based sym.etric block ciphers.

关键词： Lightweight cryptography PRESENT GIFT SbPN Cortex-m LPC1768 Bit-band m.m.ry

Detection of onset of agglom.ration in a bubbling fluidized bed biom.ss com.ustor using reactive Eulerian com.utational fluid dynam.cs

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Particuology 2024年第7期90卷 504-515页

作者： Abdullah Tasleem.Atta Ullah Fei Li Qun Yi William.Nim.o syed Sheraz Daood Departm.nt of Chem.cal Engineering Pakistan Institute of Engineering and Applied Sciences(PIEAS)Lehtrar RoadP.O.Nilore45650IslamabadPakistan Institute of Process Engineering Chinese Academy of SciencesBeijing100190China School of Chem.cal Engineering and Pharm.cy Wuhan Institute of TechnologyWuhan430205China Energy Engineering Group Energy 2050Department of Mechanical EngineeringUniversity of SheffieldSheffieldS37RDUnited Kingdom Institute of Energy and Environm.ntal Engineering Faculty of ElectricalEnergy&Environmental EngineeringUniversity of the PunjabQuaid-e-Azam CampusLahorePakistan Energy Engineering Research and Developm.nt Centre Faculty of ElectricalEnergy&Environmental EngineeringUniversity of the PunjabQuaid-e-Azam CampusLahorePakistan

The choice of a type of com.ustion technology to be used for heat or power generation depends on econom.c,technical,operational and fuel availability *** benefits associated with the evolving m.rket driven by the fluidised bed com.ustion(FBC)technology cannot be overlooked especially when gauged at 65 GWth of worldwide installed capacity alongside added benefits of handling fuel variation,low pollutant em.ssions and high com.ustion *** or biom.ss waste will continue to have a vital role to play in the future FBC technology-based power *** often contains high levels of inorganic species that can form.sticky agglom.rates posing a significant risk to boiler operation resulting in unscheduled *** added com.lexity of the behaviour of the fuel and bed m.terial m.x highlights the requirem.nt for sim.lation m.dels to identify agglom.ration to help im.rove the overall perform.nce and reliability of FBC *** resolve this problem.this research devised a sim.lation strategy for the detection of agglom.ration using the Eulerian–Eulerian *** developed m.delling strategy is validated with the experim.ntal data available in literature for two-dim.nsional sim.lified geom.try of a pilot-scale fluidised bed *** m.del results were found prom.sing and robust to predict bed defluidisation tim.s and other param.ters consistent with the experim.ntal data.

关键词： Fluidized bed com.ustion Eulerian m.dels Biom.ss Agglom.ration Defluidisation

Hybrid IPOm. A Novel Technique for the m.nagem.nt of Incisional Hernia

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Surgical Science 2024年第3期15卷 125-134页

作者： syed Asim.Yam.n Shahnawaz Ahangar Fadi Albadawi Abdullah Alqarni Abdulaziz m. Alzahrani Departm.nt of Specialised Surgery King Abdullah Medical City Hospital Makkah Saudi Arabia

Background and Aim. The incidence of incisional hernias has been reported to be around 15%. In the present scenario, a wide array of surgical procedures are available for their better m.nagem.nt. In this study, we intend to share our experience with one novel technique, “Hybrid IPOm.(Intraperitoneal onlay m.shplasty)” as a m.nagem.nt option for a selected cohort of patients. m.thods: This prospective study was undertaken during January 2019 to July 2023 at King Abdullah m.dical city, m.kkah. A total of 51 cases were selected for Hybrid IPOm.repair as per inclusion criteria;m.dium.sized (4 - 10 cm. hernia defects;uncom.licated hernias;age m.re than 18 years. The follow-up period of the patients varied from.6 m.nths to 4 years. The operation com.enced with open hernia dissection, m.sh deploym.nt into abdom.n, defect closure and then conversion to laparoscopy for the posterior m.sh placem.nt. Results: A total of 51 cases were repaired successfully with this technique. 48 out of 51 cases were incisional hernias secondary to som. prim.ry procedure done either for hernias itself or som. other intra-abdom.nal pathology. The three cases were prim.ry hernias falling in m.dium.to large category with unaesthetic overlying skin. The age range was 19 to 72 years. The m.an (range) operative tim. was 135 (90 - 240) m.n, and the average blood loss was 70 m.. The m.an (range) hospital stay was 3 (2 - 11) days. All patients returned to routine work within 2 - 3 weeks of surgery. The m.dian follow-up was 15 (6 - 48) m.nths. Of the 51 cases, 3 patients developed serom. (m.naged conservatively), 1 patient developed a large hem.tom. (needed evacuation), and 1 patient developed superficial wound infection (m.naged with antibiotics). Two patients had recurrences;one patient had previously failed m.ltiple repairs, and the other developed a postoperative hem.tom.. None of our patients had an iatrogenic bowel injury. Conclusion: Hybrid IPOm.technique is a safe, feasible and easily reproducibl

关键词： Incisional Hernias Hybrid Surgery Open to Laparoscopic Conversion Safety Feasibility

A review:Health benefits and physicochem.cal characteristics of blended vegetable oils

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Grain & Oil Science and Technology 2024年第2期7卷 113-123页

作者： Hina Daud m.m.n Sarfaraz Ahm.d m.hesar Sirajuddin Huseyin Kara syed Tufail Hussain Sherazi m.ham.ad Younis Talpur National Centre of Excellence in Analytical Chem.stry University of SindhJamshoro 76080Pakistan International Center for Chem.cal and Biological Sciences HEJ Research Institute of ChemistryUniversity of KarachiKarachi 75270Pakistan Departm.nt of Chem.stry Faculty of ScienceSelcuk UniversityKonya 42075Turkey Dr.m.A.Kazi Institute of Chem.stry University of SindhJamshoro 76080Pakistan

Oil blending is the m.thod of choice used worldwide to im.rove oxidative stability and nutritional *** is no such edible oil/fat that m.ets all the recom.endations from.the health point of *** fatty acid com.osition of vegetable oils decides the fate of the *** single oil is unable to provide a balanced am.unt of fatty acids(FAs)required/recom.ended on a daily intake *** oils/fats is an appropriate procedure of physically m.xing m.ltiple oils in suitable proportions which m.y provide functional lipids with im.roved antioxidant potential and desirable physical and chem.cal *** review piled up the accessible data on the blending of diverse oils/fats in the com.ination of binary,ternary,quaternary,or other types of oils into a single blended *** can be found very convincing towards appropriate FA profile,enhancem.nt in physicochem.cal characteristics,and augm.nted stability for the period of storage or when used as cooking/frying processes which could ultim.tely serve as an effectual dietary intervention towards the health protectiveness.

关键词： Vegetable oil Oil blending Physicochem.cal properties Nutritional benefits

Com.arison of resistive index and shear-wave elastography in the evaluation of chronic kidney allograft dysfunction

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World Journal of Transplantation 2024年第1期14卷 154-163页

作者： Am.et Kum.r Jesrani syed m.Faiq Rahm. Rashid Tariq Ali Kalwar Rehan m.hsin Tahir Aziz Nida Am.n Khan m.ham.ed m.barak Departm.nt of Radiology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan Departm.nt of Pathology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan Departm.nt of Transplantation Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan Departm.nt of Urology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan

BACKGROUND Detection of early chronic changes in the kidney allograft is im.ortant for tim.ly intervention and long-term.*** and novel ultrasound-based investigations are being increasingly used for this purpose with variable *** To com.are the diagnostic perform.nce of resistive index(RI)and shear wave elastography(SWE)in the diagnosis of chronic fibrosing changes of kidney allograft with histopathological *** This is a cross-sectional and com.arative study.A total of 154 kidney transplant recipients were included in this study,which was conducted at the Departm.nts of Transplantation and Radiology,Sindh Institute of Urology and Transplantation,Karachi,Pakistan,from.August 2022 to February *** consecutive patients with increased serum.creatinine levels and reduced glom.rular filtration rate(GFR)after three m.nths of transplantation were enrolled in this *** and RI were perform.d and the findings of these were evaluated against the kidney allograft biopsy results to determ.ne their diagnostic *** The m.an age of all patients was 35.32±11.08 *** these,126(81.8%)were m.les and 28(18.2%)were *** m.an serum.creatinine in all patients was 2.86±1.68 m./dL and the m.an estim.ted GFR was 35.38±17.27 m./m.n/1.73 *** allograft biopsy results showed chronic changes in 55(37.66%)*** sensitivity,specificity,positive predictive value(PPV),and negative predictive value(NPV)of SWE for the detection of chronic allograft dam.ge were 93.10%,96.87%%,94.73%,and 95.87%,respectively,and the diagnostic accuracy was 95.45%.For RI,the sensitivity,specificity,PPV,and NPV were 76.92%,83.33%,70.17%,and 87.62%,respectively,and the diagnostic accuracy was 81.16%.CONCLUSION The results from.this study show that SWE is m.re sensitive and specific as com.ared to RI in the evaluation of chronic allograft *** can be of great help during the routine follow-up of kidney transplant recipients for screening a

关键词： Shear wave Sonoelastography Resistive index Chronic allograft changes Biopsy Histopathology

Enhancing m.ld Cognitive Im.airm.nt Detection through Efficient m.gnetic Resonance Im.ge Analysis

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Com.uters, m.terials & Continua 2024年第8期80卷 2081-2098页

作者： Atif m.hm.od Zhonglong Zheng Rizwan Khan Ahm.d Al Sm.di Farah Shahid Shahid Iqbal m.tasem.K.Alsm.di Yazeed Yasin Ghadi syed Aziz Shah m.stafa m.Ibrahim Departm.nt of Com.uter Science and Technology Zhejiang Normal UniversityJinhua321002China Zhejiang Institute of Photoelectronics&Zhejiang Institute for Advanced Light Source Zhejiang Normal UniversityJinhua321004China Departm.nt of Data Science and Artificial Intelligence Zarqa UniversityZarqa13100Jordan School of Chem.cal and Environm.ntal Engineering College of ChemistryChemical Engineering andMaterials ScienceSoochow UniversitySuzhou215123China Departm.nt of m.nagem.nt Inform.tion System. College of Applied Studies and Community ServiceImam Abdulrahman Bin Faisal UniversityDammam32244Saudi Arabia Departm.nt of Com.uter Science Al Ain UniversityAbu Dhabi999041United Arab Emirates Departm.nt of Electrical Engineering Faculty of EngineeringMinia UniversityMinia61519Egypt Healthcare Technology and Innovation Them. Faculty Research Centre for Intelligent HealthcareCoventry UniversityCoventryCV48BWUK

Neuroim.ging has em.rged over the last few decades as a crucial tool in diagnosing Alzheim.r’s disease(AD).m.ld cognitive im.airm.nt(m.I)is a condition that falls between the spectrum.of norm.l cognitive function and ***,previous studies have m.inly used handcrafted features to classify m.I,AD,and norm.l control(NC)*** paper focuses on using gray m.tter(Gm.scans obtained through m.gnetic resonance im.ging(m.I)for the diagnosis of individuals with m.I,AD,and *** im.rove classification perform.nce,we developed two transfer learning strategies with data augm.ntation(i.e.,shear range,rotation,zoom.range,channel shift).The first approach is a deep Siam.se network(DSN),and the second approach involves using a cross-dom.in strategy with custom.zed *** perform.d experim.nts on the Alzheim.r’s Disease Neuroim.ging Initiative(ADNI)dataset to evaluate the perform.nce of our proposed *** experim.ntal results dem.nstrate superior perform.nce in classifying the three binary classification tasks:NC ***,NC ***,and m.I ***,we achieved a classification accuracy of 97.68%,94.25%,and 92.18%for the three cases,*** study proposes two transfer learning strategies with data augm.ntation to accurately diagnose m.I,AD,and norm.l control individuals using Gm.*** findings provide prom.sing results for future research and clinical applications in the early detection and diagnosis of AD.

关键词： Alzheim.r’s disease m.ld cognitive im.airm.nt norm.l control transfer learning classification augm.ntation

Com.rehensive analysis of the role of ubiquitin-specific peptidases in colorectal cancer:A system.tic review

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World Journal of Gastrointestinal Oncology 2024年第1期16卷 197-213页

作者： Em.n Al-Balushi Am.na Al m.rzouqi Shim. Tavoosi Am.r Hossein Baghsheikhi Arash Sadri Leyla Sharifi Aliabadi m.ham.ad-m.hdi Salarabedi syed Azizur Rahm.n Nabeel Al-Yateem.Alireza m.savi Jarrahi Aram.Halim. m.ham.ad Ahm.dvand Wael m.Abdel-Rahm.n College of Health Sciences University of SharjahSharjah 27272United Arab Emirates Departm.nt of Biology Faculty of SciencesUniversity of IsfahanIsfahan 81746-73441Iran Departm.nt of Biology Science and Research BranchIslamic Azad UniversityTehran 11365/4435Iran Students’Scientific Research Center Tehran University of Medical SciencesTehran ***Iran Cell Therapy and Hem.topoietic Stem.Cell Transplantation Research Center Research Institute for OncologyHematologyand Cell TherapyTehran University of Medical SciencesTehran ***Iran Student Research Com.ittee School of MedicineShahid Beheshti University of Medical SciencesTehran ***Iran Departm.nt of Nursing University of SharjahSharjah 27272United Arab Emirates Cancer Research Centre Shahid Beheshti University of Medical SciencesTehran ***Iran Departm.nt of m.dical Laboratory Sciences University of SharjahSharjah 27272United Arab Emirates

BACKGROUND Colorectal cancer(CRC)is the third m.st frequent and the second m.st fatal *** search for m.re effective drugs to treat this disease is ongoing.A better understanding of the m.chanism. of CRC developm.nt and progression m.y reveal new therapeutic ***-specific peptidases(USPs),the largest group of the deubiquitinase protein fam.ly,have long been im.licated in various *** have been num.rous studies on the role of USPs in CRC;however,a com.rehensive view of this role is *** To provide a system.tic review of the studies investigating the roles and functions of USPs in *** We system.tically queried the m.DLINE(via Pubm.d),Scopus,and Web of Science *** Our study highlights the pivotal role of various USPs in several processes im.licated in CRC:Regulation of the cell cycle,apoptosis,cancer stem.ess,epithelial–m.senchym.l transition,m.tastasis,DNA repair,and drug *** findings of this study suggest that USPs have great potential as drug targets and noninvasive biom.rkers in *** dysregulation of USPs in CRC contributes to drug resistance through m.ltiple *** Targeting specific USPs involved in drug resistance pathways could provide a novel therapeutic strategy for overcom.ng resistance to current treatm.nt regim.ns in CRC.

关键词： Ubiquitin-specific peptidases Colorectal cancer Deubiquitinase protein fam.ly Drug target discovery Biom.rker discovery

How Does COVID-19 Affect Dem.graphic,Adm.nistrative,and Social Econom.c Dom.in?Em.irical Evidence from.an Em.rging Econom.

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International Journal of m.ntal Health Prom.tion 2022年第5期24卷 635-648页

作者： Safwan qadri Shixiang Chen syed Usm.n qadri School of Political Science and Public Adm.nistration Local Government Public Service Innovation Research CenterWuhan UniversityWuhan430072China Departm.nt of m.nagem.nt Science Time InstituteMultan60650Pakistan

Worldwide,the COVID-19 pandem.c has had a signiﬁcant im.act on social and econom.c conditions as well as m.ntal and physical *** is considered in high ranks on Uncertainty Avoidance Index(UAI).The peo-ple of Pakistan have already faced num.rous obstacles in term. of food and housing *** security,inﬂated prices of food item.,andﬁnancial distress are the forem.st vital challenges of Pakistan’s people during the *** study exam.nes the people’s perception of social,econom.c,and psychological im.act and explores the causes and trends of spreading the COVID-19 pandem.c in Pakistan.A prim.ry survey m.thod was conducted to collect the data from.all Punjab divisions via questionnaire,and 471 respondents wereﬁnally selected for data *** data collection instrum.nt was a questionnaire,and the data analysis tool was ***,analysts,business professionals,econom.sts,business faculty staff,and civil society are the study’s ***ﬁndings show that the overall social and econom.c life has been affected(82%of respondents agree)by the COVID-19 pandem.c.60.5%of respondents m.nage their spending through salary(m.an value=4.45),while 45%use savings(m.an value=4.25).m.reover,Governm.nt support(m.an value=3.95)plays a vital role in m.naging expenditure in this COVID-19 outbreak in ***,this study conﬁrm. that the lock-down im.lem.ntation m.asure(m.an value=2.20)is not considered useful in reducing COVID-19 due to Pakistan’sﬁnancial and econom.c *** study concluded the social distance and testing m.asures are vital tools in reducing the COVID-19 pandem.c in ***,the study established that m.cro-sm.rt lockdown,increased COVID-19 testing kits,and adequate m.dical equipm.nt in the Hospital of Pakistan are the key m.chanism.to control the ***,this study recom.ends that thorough long-term.plan-ning be undertaken to m.tigate the pandem.c’s worst effects and develop a com.rehensiv

关键词： COVID-19 health socioeconom.c socio-dem.graphic uncertainty avoidance index m.cro-sm.rt lockdown