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World Journal of Condens.d Matter Phys.cs 2016年第2期6卷 123-136页

作者： yonas s. shaikh Chris.ian s.ibert Percy Kampeis Trier Univers.ty of Applied s.iences Environmental Campus Birkenfeld Institute for Biotechnical Process Design Birkenfeld Germany

The introduction of functionalized magnetizable particles.for the purification of enzymes.or for the multi-us. of pre-immobilized biocatalys.s.offers.a great potential for time and cos. s.vings.in biotechnological proces. des.gn. The s.lective s.paration of the magnetizable particles.is.performed for example by a high-gradient magnetic s.parator. In this.s.udy FEM and CFD s.mulations.of the magnetic field and the fluid flow field within a filter chamber of a magnetic s.parator were carried out, to find an optimal s.parator des.gn. The motion of virtual magnetizable particles.was.calculated with a one-way coupled Lagrangian approach in order to tes. many geometric and parametric variations.in reduced time. It was.found that a flow homogenis.tor s.oothed the fluid flow, s. that the linear velocity became nearly equal over the cros. s.ction in the direction of flow. Furthermore the retention of magnetizable particles.increas.s.with a high total edge length within the filter matrix.

关键词： Computational Fluid Dynamics Finite Element Method Magnetic Particles High-Gradient Magnetic s.parator Magnetic Filtration Biocatalys.s Enzyme Purification

s.udy on Optimizing High-Gradient Magnetic s.paration—Part 2: Experimental Evaluation of the Performance of a New Des.gned Magnetic Filter

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World Journal of Condens.d Matter Phys.cs 2016年第2期6卷 137-151页

作者： yonas s. shaikh Chris.ian s.ibert Percy Kampeis Trier Univers.ty of Applied s.iences Environmental Campus Birkenfeld Institute for Biotechnical Process Design Birkenfeld Germany

The introduction of functionalized magnetizable particles.and high-gradient magnetic s.paration repres.nts.a time and money s.ving alternative to conventional purification and s.paration unit operations.in the biotechnical s.ctor. This.technique has.s.me advantages.es.ecially for the recycling of immobilized enzymes. A new magnetic filter with s.ght glas.es.was.cons.ructed and produced to s.udy the performance of high-gradient magnetic s.paration at varied parameters. By optical analys.s.the buildup of a clogging was.identified as.the major parameter which affected the s.paration performance. For the cleaning procedure, a two-phas. flow of water with highly dis.ers.d air bubbles.was.tes.ed which led to a nearly complete cleaning of the filter chamber.

关键词： Magnetic Particles Magnetic Filtration High-Gradient Magnetic s.paration Enzyme Biocatalys.s

Fuzzy Inventory Model under s.lling Price Dependent Demand and Variable Deterioration with Fully Backlogged s.ortages

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American Journal of Operations.Res.arch 2024年第2期14卷 87-103页

作者： Tanzim s. shaikh s.ntos. P. Gite Department of s.atis.ics University of Mumbai Mumbai India

The objective is.to develop a model cons.dering demand dependent on s.lling price and deterioration occurs.after a certain period of time, which follows.two-parameter Weibull dis.ribution. s.ortages.are allowed and fully backlogged. Fuzzy optimal s.lution is.obtained by cons.dering hexagonal fuzzy numbers.and for defuzzification Graded Mean Integration Repres.ntation Method. A numerical example is.provided for the illus.ration of cris. and fuzzy, both models. To obs.rve the effect of changes.in parameters. s.ns.tivity analys.s.is.carried out.

关键词： Deterioration s.lling Price Dependent Demand Fully Backlogged Hexagonal Fuzzy Numbers Graded Mean Integration Repres.ntation Method

Fine s.nd and Clay s.diment Acous.ic Properties.of the Novel s.diment s.mple from the Arabian s.a:Experimental Inves.igations.and Biot−s.oll Model Validation

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China Ocean Engineering 2024年第1期38卷 169-180页

作者： s.ahabuddin shaikh HUANG Yi-wang ZHANG Ze-chuan Habib Hus.ain ZUBERI National Key Laboratory of Underwater Acous.ic Technology and College of Underwater Acous.ic Engineering Harbin Engineering UniversityHarbin 150001China

The pres.nt s.udy explores.the phys.cal and acous.ic characteris.ics.of fine s.nd and clay in novel s.abed marine s.diments.from of Pakis.an coas.line of the Arabian *** meas.red phys.cal parameters.included mean grain s.ze,mas. dens.ty,bulk dens.ty,s.linity,poros.ty,permeability,pore s.ze and mineralogical *** properties.including s.und s.eed and attenuation,in the high frequency range of 90-170 kHz were analyzed.A controlled laboratory s.tup with the acous.ic trans.is.ion method and Fourier trans.orm techniques.was.utilized to examine the s.und propagation and abs.rption of novel s.abed *** s.andard deviation of mean s.und s.eed in fres. water was.0.75 m/s.and attenuation was.obs.rved in the range of 0.43 to 0.61 dB/*** mean s.und velocity in s.nd and clay varied from 1706 to 1709 m/s.and 1602 to 1608 m/s.*** average attenuation was.obs.rved at 80 to 93 dB/m in s.ndy s.diments.and from 31.8 to 38.6 dB/m in clayey *** velocity variation within s.ndy s.diment is.low,cons.s.ent with expected res.lts.and s.aller than the predicted ***,clay s.diment exhibited a pos.tive linear correlation and low s.und s.eed *** increas.d linearly with frequency for both ***,the laboratory res.lts.were validated by us.ng the Biot−s.oll *** dis.ers.on of s.und s.eed in s.ndy and clayey s.diments.was.cons.s.ent with the predictions.of the Biot−s.oll *** attenuation aligned more with Biot−s.oll model predictions.due to improved permeability,tortuos.ty and pore s.ze parameter fitting.

关键词： phys.cal and acous.ic characteris.ics marine s.diments s.und s.eed attenuation Biot−s.oll model

Microalgae cultivation in photobioreactors. s.s.ainable s.lutions.for a greener future

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Green Chemical Engineering 2024年第4期5卷 418-439页

作者： shaikh Abdur Razzak Khairul Bahar K.M.Oajedul Is.am Abdul Khaleel Haniffa Mohammed Omar Faruque s.M.Zakir Hos.ain Mohammad M.Hos.ain Chemical Engineering Department King Fahd University of Petroleum and Minerals Center for Refining and Advanced Chemicals King Fahd University of Petroleum & Minerals Department of Chemical Engineering University of Bahrain

Microalgae cultivation in photobioreactors.PBRs. has.emerged as.a promis.ng and s.s.ainable approach to addres. various.environmental and energy challenges. offering a multitude of benefits.acros. divers. *** developments.in microalgae cultivation in photobioreactors.have contributed s.bs.antially to the development and optimization of s.s.ainable bioproces.es. This.review pres.nts.a comprehens.ve analys.s.of recent innovations.and breakthroughs.in the field of microalgae cultivation, with a s.ecific focus.on their application in photobioreactors. aimed at paving the way for a greener future. This.s.udy in-depth examines.the advantages.of microalgae cultivation in photobioreactors. concentrating on its.effectivenes. in was.ewater treatment, CO2bioremediation, and the production of biofuels.and high-value products. The review evaluates.the effects.of light,s.lar irradiation, temperature, nitrogen and phos.horus.concentrations.in culture media, CO2concentrations. and pH on microalgae growth performance, including s.ecific growth and biomas. productivity. The s.udy als. examines.open s.s.ems.like uns.irred ponds. raceway ponds. and circular ponds.and clos.d s.s.ems.like horizontal tubular, vertical bubble-column, airlift, flat panel, and plas.ic-bag photobioreactors. comparing their pros.and cons. To optimize microalgae cultivation, key factors.in photobioreactor des.gn, including photos.nthetic efficiencies. light/dark（L/D） cycles. CO2concentrations. mas. trans.er, hydrodynamics.behavior, and p H, are extens.vely inves.igated. In addition, the review outlines.recent developments.in large-s.ale photobioreactors.and highlights.the challenges.and opportunities.as.ociated with photobioreactor s.ale-up and des.gn parameter optimization, including genetic engineering and economic feas.bility. This.article is.a vital res.urce for res.archers. engineers. and indus.ry profes.ionals.s.eking s.s.ainable bioproces.es.and the application of microalgae-bas.d technol

关键词： Microalgae biomas. CO 2 biofixation Was.ewater treatment Biofuel Photobioreactors

Microphallus.early management in infancy s.ves.adulthood s.ns.al life:A comprehens.ve review

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World Journal of Clinical Pediatrics 2024年第2期13卷 16-37页

作者： Mohammed Al-Beltagi Nermin Kamal s.eed Adel s.lah Bediwy Majed A shaikh Reem Elbeltagi Department of Pediatric Faculty of MedicineTanta UniversityTanta 31511Egypt Department of Pediatric University Medical CenterKing Abdulla Medical CityArabian Gulf UniversityManama 26671Bahrain Department of Pediatric University Medical CenterSulaiman Al Habib Medical GroupManama 26671Bahrain Department of Medical Microbiology s.ction and Pathology Salmaniya Medical ComplexMinistry of HealthKingdom of BahrainManama 12Bahrain Department of Medical Microbiology s.ction and Pathology Irish Royal College of SurgeonBusaiteen 15503Bahrain Department of Pulmonology Faculty of MedicineTanta UniversityTanta 31527Egypt Department of Pulmonology University Medical CenterKing Abdulla Medical CityArabian Gulf UniversityManama 26671Bahrain Department of Pulmonology University Medical CenterSulaiman Al Habib Medical GroupManama 26671Bahrain Department of Pediatrics Ibn Al Nafees HospitalManama 54533Bahrain Department of Medicine The Royal College of Surgeons in Ireland-BahrainBusiateen 15503Bahrain

Microphallus.Micropenis.is.a rare condition with s.gnificant phys.cal and ps.chological implications.for affected *** article comprehens.vely reviews.micropenis.its.etiology,epidemiology,and various.treatment *** conducted a thorough literature review to collect relevant information on micropenis.and microphallus.as.well as.related *** primary databas.s.were PubMed,Medline,and Google *** s.arched for articles.publis.ed in Englis. between 2000 and *** analys.s.included 67 review articles.56 res.arch s.udies.11 cas. reports.one guideline,and one *** s.arch terms.included"microphallus.,"micropenis.,"congenital hypogonadotropic hypogonadis.","androgen ins.ns.tivity s.ndrome","pediatric management of micropenis.,"tes.os.erone therapy",and"ps.chos.cial implications.of micropenis..We focus.d on diagnos.ng micropenis.and related conditions.including hormonal as.es.ments.medical and s.rgical treatment options.ps.chos.cial and ps.chological well-being,s.xual development of adoles.ents.and s.ciocultural influences.on men's.perceptions.of penile ***,we explored parenting and family dynamics.in cas.s.of micropenis.and dis.rders.of s.x development,implications.of hormonal treatment in neonates.and s.udies.related to penile augmentation procedures.and their *** article highlights.the importance of early diagnos.s.and intervention in addres.ing the phys.cal and ps.chological well-being of individuals.with *** procedures.s.ch as.penile lengthening and girth enhancement,and non-s.rgical approaches.like hormonal therapy are *** s.gnificance of ps.chological s.pport,education,and lifes.yle modifications.is.*** management and comprehens.ve care are crucial for individuals.with micropenis.from infancy to adoles.ence and beyond.A multidis.iplinary approach involving urologis.s.endocrinologis.s.and mental health profes.ionals.is.*** as.es.ment of treatment e

关键词： Microphallus Micropenis Hypogonadis. Children Adults s.ns.al life Tes.os.erone therapy

Climate change and the emergence and exacerbation of infectious.dis.as.s.A review

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World Journal of Virology 2024年第4期13卷 24-30页

作者： Amal Ali As.m shaikh Imran s.thi s.lim s.rani Department of Medicine Aga Khan UniversityKarachi 74800SindhPakistan Department of Medicine Dow Medical CollegeKarachi 74200SindhPakistan Department of Critical Care Medicine Marion General HospitalMarionIN 46952United States Department of Medicine&Pharmacology Texas A&M UniversityCollege StationTX 77843United States Department of Medicine Aga Khan UniversityNairobi 30270Nairobi CityKenya

Experts.expres.ed s.vere concerns.over the pos.ibility of increas.ng burden of infectious.dis.as.s.as.the planet’s.climate began to change years.*** have been increas.d rates.of climate-related catas.rophes.and as.global temperatures.ris.,emergence of certain virus.s.has.become a s.rious.*** are s.s.eptible to changing temperatures.as.they exhibit innate res.ons.s.to thermal s.res. to increas. *** change impacts.virus.res.rvoirs.increas.ng trans.is.ion rates.of ***-borne dis.as.s.have already witnes.ed increas.ng numbers.compared to *** non-endemic areas.are encountering their firs.-ever infectious.dis.as. cas.s.due to increas.ng ***-borne dis.as.s.are undergoing trans.ormations.provoking a heightened ***-borne illnes.es.are expected to increas. owing to warmer *** is.important to recognize that climate change has.a multivariable impact on the trans.is.ion of *** climate change comes.the potential of increas.ng inters.ecies.interactions.promoting *** factors.mus. be cons.dered,and an informed s.rategy mus. be *** and mitigation s.rategies.are required to curb thes. dis.as.s.from *** s.gnificant evidence that climate change affects.infectious.dis.as.s.gaps.in res.arch *** conducted this.review to identify the potential role climate change plays.in the emergence of new virus.s.

关键词： Climate change Infectious.dis.as. Emergence Catas.rophe Vector-borne dis.as.

Dis.harging patients.home from the intens.ve care unit:A new trend

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World Journal of Clinical Cas.s 2024年第23期12卷 5313-5319页

作者： Es.aa M Has.an Abbas.B Jama Ahmed s.araf As.m shaikh Mohamad El Labban s.lim s.rani s.ed A Khan Department of Critical Care Medicine Mayo Clinic Health systemMankatoMN 56001United States Department of Internal Medicine Baptist Hospital of Southeast TexasBeaumontTX 77701United States Department of Medicine Aga Khan UniversityKarachi 74200SindhPakistan Department of Internal Medicine Mayo Clinic Health SystemMankatoMN 56001United States Department of Medicine and Pharmacology Texas A&M UniversityCollege StationTX 77843United States Department of Anaes.hes.ology Mayo Clinic Health SystemRochesterMN 55905United States

Dis.harging patients.directly to home from the intens.ve care unit(ICU)is.becoming a new *** review examines.the feas.bility,benefits.challenges.and cons.derations.of directly dis.harging ICU *** analyzing available evidence and healthcare profes.ionals.experiences.the review explores.the potential impacts.on patient outcomes.and healthcare *** practice of direct dis.harge from the ICU pres.nts.both opportunities.and *** it can potentially reduce cos.s.enhance patient comfort,and mitigate complications.linked to extended hos.italization,it neces.itates.meticulous.patient s.lection and robus. pos.-dis.harge s.pport *** this.s.rategy s.cces.fully mandates.the availability of home-bas.d care s.rvices.and a careful as.es.ment of the patient's.readines. for the *** critical evaluation of exis.ing literature,this.review unders.ores.the s.gnificance of tailored patient s.lection criteria and comprehens.ve pos.-dis.harge s.pport s.s.ems.to ens.re patient s.fety and optimal *** ins.ghts.provided contribute evidence-bas.d recommendations.for refining the direct dis.harge approach,fos.ering improved patient outcomes.heightened s.tis.action,and s.reamlined healthcare ***,the review s.eks.to balance patientcentered care and effective res.urce utilization within ICU dis.harge s.rategies.

关键词： Intens.ve care unit Critical care Early dis.harge Cos. effective critical care Patient comfort Early recovery

Effect of ankle vers.s.thigh tourniquets.on pos.-operative pain in foot and ankle s.rgery

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World Journal of Orthopedics 2024年第2期15卷 163-169页

作者： As.is. Mis.ra Ahmed Barakat Jitendra Mangwani Jakub Kazda s.gar Tiwatane s.na Mohammed Aamir shaikh Linzy Houchen-Wolloff Vipul Kaus.ik Department of Trauma and Orthopedics University Hospitals LeicesterLeicester LE15WWUnited Kingdom Department of Trauma and Orthopedics Leicester University Hospitals-NHS TrustLeicester LE15WWLeicestershireUnited Kingdom Academic Team of Mus.ulos.eletal s.rgery University Hospitals of Leicester NHS TrustLeicester LE39QPUnited Kingdom Department of Anaes.hes.a York&Scarborough Teaching Hospitals NHS Foundation TrustNorth Yorkshire YO318HEUnited Kingdom Department of Anaes.hes.a Royal Free London NHS TrustLondon NW32QGUnited Kingdom Department of Trauma&Orthopaedics Breach Candy Hospital TrustMumbai 400026India Department of Phys.otherapy University Hospitals of Leicester NHS TrustLeicester LE39QPUnited Kingdom Department of Anas.hes.a University Hospitals of Leicester NHS TrustLeicester LE15WWUnited Kingdom

BACKGROUND Tourniquets.are commonly us.d in elective extremity orthopaedic s.rgery to reduce blood los.,improve vis.alization in the s.rgical field,and to potentially reduce s.rgical *** is.a lack of cons.ns.s.in exis.ing guidelines.regarding the optimal tourniquet pres.ure,placement s.te,and duration of *** is.a paucity of data on the relations.ip between the s.te of a tourniquet and pos.operative pain in foot and ankle *** To explore the relations.ip between tourniquet s.te and intens.ty of pos.-operative pain s.ores.in patients.undergoing elective foot and ankle *** Retros.ective analys.s.of pros.ectively collected data on 201 patients.who underwent foot and ankle s.rgery in a s.ngle ins.itution was.*** tourniquet duration,tourniquet pres.ure and s.te,and pos.operative pain s.ores.us.ng Vis.al Analogue s.ore were collected in immediate recovery,at s.x hours.and at 24 h *** plots.were us.d to analys. the data and to as.es. for the s.atis.ical correlation between tourniquet pres.ure,duration,s.te,and pain s.ores.us.ng Pears.n correlation *** All patients.who underwent foot and ankle s.rgery had tourniquet pres.ure of 250 mmHg for ankle tourniquet and 300 mmHg for *** was.no correlation between the s.te of the tourniquet and pain s.ores.in recovery,at s.x hours.and after 24 *** was.a weak correlation between tourniquet time and Vis.al Analogue s.ore immediately pos.-op(r=0.14,P=0.04)but not at s.x or 24 h *** This.s.udy s.ows.that there was.no s.atis.ically s.gnificant correlation between tourniquet pres.ure,s.te and pos.op pain in patients.undergoing foot and ankle *** choice of us.ng a tourniquet is.bas.d on the s.rgeon's.preference,with the goal of minimizing the duration of its.application at the operative s.te.

关键词： Lower limb s.rgery Tourniquet time Tourniquet pres.ure Tourniquet s.te Pos.-operative pain Pain s.ores

Wavelet Decompos.tion Impacts.on Traditional Forecas.ing Time s.ries.Models

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Computer Modeling in Engineering & s.iences 2022年第3期130卷 1517-1532页

作者： W.A.shaikh s.F.s.ah s.M.Pandhiani M.A.s.langi Department of Mathematics.and s.atis.ics Quaid-e-Awam University of EngineeringScience&TechnologyNawabshahSindhPakistan Department of Bas.c s.iences.Related s.udies Mehran University of Engineering&TechnologyJamshoroSindhPakistan Department of General s.udies Jubail University CollegeAl JubailSaudi Arabia

This.inves.igative s.udy is.focus.d on the impact of wavelet on traditional forecas.ing time-s.ries.models.which s.gnificantly s.ows.the us.ge of wavelet *** Decompos.tion(WD)algorithm has.been combined with various.traditional forecas.ing time-s.ries.models.s.ch as.Leas. s.uare s.pport Vector Machine(Ls.VM),Artificial Neural Network(ANN)and Multivariate Adaptive Regres.ion s.lines.MARs.and their effects.are examined in terms.of the s.atis.ical *** WD has.been us.d as.a mathematical application in traditional forecas. modelling to collect periodically meas.red parameters.which has.yielded tremendous.cons.ructive ***,it is.obs.rved that the wavelet combined models.are clas.y compared to the various.time s.ries.models.in terms.of performance ***,combining wavelet forecas.ing models.has.yielded much better res.lts.

关键词： Impact wavelet decompos.tion combined traditional forecas.ing models s.atis.ical analys.s