检索结果-南通市图书馆

Role of Air Staging in a Batch-Type Fixed Bed Biom.ss Com.ustor under Constant Prim.ry Air

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

Journal of Therm.l Science 2024年第1期33卷 284-299页

作者： Awais JUNEJO Yasir m.al-ABDELI Jacobo PORTEIRO School of Engineering Edith Cowan UniversityJoondalupWA 6027Australia CINTECX Universidade de Vigo Grupo de Tecnoloxia Enerxetica(GTE)36310 VigoEspana

Staged com.ustion of biom.ss is the m.st suitable therm.-chem.cal conversion for achieving lower gaseous em.ssions and higher fuel conversion *** a staged fixed bed com.ustion of biom.ss,com.ustion air is supplied in two *** the first stage,prim.ry air is provided below the fuel,whereas in the later stage,secondary air is supplied in the freeboard *** available literature on the effects of air staging(secondary air location) at a constant prim.ry air flow rate on com.ustion characteristics in a batch-type fixed bed com.ustor is lim.ted and hence warrants further *** study resolves the effect of air staging,by varying the location of secondary air in the freeboard at five secondary to total air ratios in a batch-type fixed bed *** are reported for the effects of these controlled param.ters on fuel conversion rate,overall gaseous em.ssions(CO_(2),CO and NO_x) and tem.erature *** fuel used throughout was densified hardwood *** show that a prim.ry freeboard length(distance between fuel bed top and secondary air injection) of200 m. has higher fuel conversion rates and tem.eratures as well as lower CO em.ssions,at a secondary to total air ratio of 0.75 as com.ared to prim.ry freeboard length of 300 ***,NO_x em.ssions were found to be lower for a prim.ry freeboard length of 300 m. as com.ared to 200 *** increase in secondary to total air ratio from.0.33 to 0.75 resulted in higher freeboard tem.eratures and lower CO as well as NO_x *** outcom.s of this study will be helpful in the effective design of com.ercial scale biom.ss com.ustors for m.re efficient and environm.ntally friendly com.ustion.

关键词： fixed bed com.ustor biom.ss com.ustion air staging freeboard tem.erature burning rate gaseous em.ssions

A Weighted m.lti-Layer Analytics Based m.del for Em.ji Recom.endation

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

Com.uters, m.terials & Continua 2024年第1期78卷 1115-1133页

作者： Am.ra m.Idrees Abdul Lateef m.rzouq al-Solam. Faculty of Com.uters and Inform.tion Technology Future University in EgyptCairo11835Egypt alkam.l College of Science and Arts University of JeddahJeddah21959Saudi Arabia

The developed system.for eye and face detection using Convolutional Neural Networks(CNN)m.dels,followed by eye classification and voice-based assistance,has shown prom.sing potential in enhancing accessibility for individuals with visual *** m.dular approach im.lem.nted in this research allows for a seam.ess flow of inform.tion and assistance between the different com.onents of the *** research significantly contributes to the field of accessibility technology by integrating com.uter vision,natural language processing,and voice *** leveraging these advancem.nts,the developed system.offers a practical and efficient solution for assisting blind *** m.dular design ensures flexibility,scalability,and ease of integration with existing assistive ***,it is im.ortant to acknowledge that further research and im.rovem.nts are necessary to enhance the system.s accuracy and ***-tuning the CNN m.dels and expanding the training dataset can im.rove eye and face detection as well as eye classification ***,incorporating real-tim. responses through sophisticated natural language understanding techniques and expanding the knowledge base of ChatGPT can enhance the system.s ability to provide com.rehensive and accurate ***,this research paves the way for the developm.nt of m.re advanced and robust system. for assisting visually im.aired *** leveraging cutting-edge technologies and integrating them.into am.dular fram.work,this research contributes to creating a m.re inclusive and accessible society for individuals with visual *** work can focus on refining the system.addressing its lim.tations,and conducting user studies to evaluate its effectiveness and im.act in real-world scenarios.

关键词： Social networks text analytics em.ji prediction features extraction inform.tion retrieval

Provenance and depositional setting of the Late m.ocenePleistocene clastic sedim.nts in the eastern Arabian Peninsula and western Iraq using rare earth elem.nts geochem.stry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geochim.ca 2024年第2期43卷 399-410页

作者： Salih m.Awadh Zinah S.al-Ankaz m.hanad R.A.al-Owaidi John S.Arm.trong-altrin Departm.nt of Geology College of ScienceUniversity of BaghdadBaghdadIraq Departm.nt of Geology College of ScienceUniversity of WasitWasit 52011Iraq Departm.nt of Applied Geology College of ScienceUniversity of BabylonBabylon 51001Iraq Unidad de Procesos Oceanicos y Costeros Instituto de Ciencias del Mar y LimnologíaUniversidad Nacional Autonoma de MexicoCiudad Universitaria04510 Mexico CityCDMXMexico Departm.nt of m.rine Sciences Bharathidasan UniversityTiruchirapalliTamil Nadu 620024India

The sandstones of the Late m.ocene–Pliocene Dibdibba Form.tion in the Najaf–Karbala Plateau and Basra were exam.ned to determ.ne their source rocks and origin. The rare earth elem.nts(REE) and trace elem.nts(Sc, Co, V, and Th) concentrations in these sandstones revealed that they likely derived from.a single source. The steep light rare earth elem.nts(LREE) and flat, heavy rare earth elem.nt(HREE) patterns, negative Eu anom.ly, and high ΣREE contents in sandstones suggest its derivation from.a suggests that a passive continental m.rgin environm.nt and originated from.felsic source rocks. The average concentration of ΣREE is 93.5 ppm. which is lower than that of the average crustal com.ositions like Upper Continental Crust and Post Archean Australian Shale. The higher proportion of LREE com.ared to HREE im.lies that these sandstones were recycled and derived from.a distal source. The Th/Co, Th/Sc, La/Sc, La/Co, Eu/Eu*and(La/Lu)cn elem.ntal ratios indicated that these Late m.ocene–Pliocene sandstones were derived from.felsic rocks located in the m.rginal region of the Arabian Shield.

关键词： REE Dibdibba form.tion Clastic sedim.nts Passive continental m.rgin

Superior rectus/levator com.lex in acquired anophthalm.c socket repaired with spheric im.lant—a com.uted tom.graphy scan and topographic study

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

International Journal of Ophthalm.logy(English edition) 2024年第8期17卷 1483-1488页

作者： Shaikha al Eid Ham.d m.alSulaim.n Sahar m.Elkham.ry Osam. al Sheikh alicia Ferrero-Galindo Rajiv Kandekhar Silvana A Schellini Oculoplastic Division King Khaled Eye Specialist HospitalRiyadh 11462Saudi Arabia Radiology Division King Khaled Eye Specialist HospitalRiyadh 11462Saudi Arabia Departm.nt of Diagnostic Radiology Mansoura Faculty of MedicineMansoura 35511Egypt University Hospital Rio Hortega Valladolid 47012Spain Research Departm.nt King Khaled Eye Specialist HospitalRiyadh 11462Saudi Arabia Ophthalm.logy Departm.nt Medical SchoolState University of Sao PauloBotucatu 18618-687Brazil

AIm.To determ.ne whether the levator palpebrae superioris(LPS)/superior rectus(SR)m.scle com.lex,can influence the position of the upper lid and fornix in acquired anophthalm.c ***:This com.arative non-random.zed and non-interventional study included retrospective data of 21 patients with unilateral acquired anophthalm.c sockets repaired with spheric ***-resolution com.uted tom.graphy(CT)m.asurem.nts of the LPm.SR m.scle com.lex and clinical topographic position of the upper lid,superior and inferior fornix depth in prim.ry gaze position were *** data were presented as frequency and percentage proportions and quantitative variables com.aring the socket m.asurem.nts with the norm.l contralateral orbit was statistically analyzed using non-param.tric tests considering Palm.c orbits had a significantly shorter LPS length(P=0.01)and significantly thicker SR(P=0.02)than the norm.l *** was present in anophthalm.c sockets but not in norm.l orbits(P=0.002),while levator function was norm.l in both(P>0.05,all com.arisons).The superior fornix depth was sim.lar in the anophthalm.c socket and the contralateral norm.l orbit(P=0.192)as well the inferior fornix depth(P=0.351).CONCLUSION:Acquired anophthalm.c sockets repaired with spheric im.lants have shorter LPS,thicker SR,and m.re lagophthalm.s than norm.l *** relationship of the LPS and SR with other orbital structures,associated with passive or active forces acting in the final position of the lids and external ocular prosthesis should be further investigated.

关键词： anophthalm.c socket spheric im.lant levator palpebrae superioris superior rectus lagophthalm.s fornix depth

Im.roving Prediction Efficiency of m.chine Learning m.dels for Cardiovascular Disease in IoST-Based System. through Hyperparam.ter Optim.zation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Com.uters, m.terials & Continua 2024年第9期80卷 3485-3506页

作者： Tajim.m..Niam.t Ullah Akhund Waleed m.al-Nuwaiser Departm.nt of Com.uter Science and Engineering(CSE) Daffodil International UniversityDhaka1216Bangladesh Graduate School of Science and Engineering Saga UniversitySaga8408502Japan Com.uter Science Departm.nt College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11623Saudi Arabia

This study explores the im.act of hyperparam.ter optim.zation on m.chine learning m.dels for predicting cardiovascular disease using data from.an IoST(Internet of Sensing Things)*** distinct m.chine learning approaches were im.lem.nted and system.tically evaluated before and after hyperparam.ter *** im.rovem.nts were observed across various m.dels,with SVm.and Neural Networks consistently showing enhanced perform.nce m.trics such as F1-Score,recall,and *** study underscores the critical role of tailored hyperparam.ter tuning in optim.zing these m.dels,revealing diverse outcom.s am.ng *** Trees and Random.Forests exhibited stable perform.nce throughout the *** enhancing accuracy,hyperparam.ter optim.zation also led to increased execution *** representations and com.rehensive results support the findings,confirm.ng the hypothesis that optim.zing param.ters can effectively enhance predictive capabilities in cardiovascular *** research contributes to advancing the understanding and application of m.chine learning in healthcare,particularly in im.roving predictive accuracy for cardiovascular disease m.nagem.nt and intervention strategies.

关键词： Internet of sensing things(IoST) m.chine learning hyperparam.ter optim.zation cardiovascular disease prediction execution tim. analysis perform.nce analysis wilcoxon signed-rank test

The Protective Effect of m.ringa oleifera Leaves Extract on Paracetam.l Hepatotoxicity in m.le Rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Biom.dical Science and Engineering 2024年第3期17卷 72-82页

作者： Reham.m. al-Sultan Noorah Saleh al-Sowayan Departm.nt of Biology College of Science Qassim University Buraydah Saudi Arabia

In recent years, there has been an increase in concern regarding the effects of paracetam.l poisoning on liver tissues, particularly when consum.d in large am.unts. Som. studies have estim.ted that paracetam.l is involved in 56% of acute liver diseases, whereas 0.4% of paracetam.l overdose cases result in fatal-ity. In this study, the effects of m.ringa oleifera on paracetam.l toxicity in the liver were explored. It has been dem.nstrated that m.ringa oleifera is highly nu-tritious, contains bioactive m.lecules, and is therapeutically beneficial. m.ny studies have shown that m.ringa oleifera leaves possess a wide range of biologi-cal properties, including antioxidant, tissue protection, analgesic, antihyperten-sive, and im.unom.dulatory activities. This study highlights the protective role of m.ringa oleifera on handling possible paracetam.l hepatotoxicity in m.le rats. .

关键词： m.ringa oleifera Paracetam.l Hepatotoxicity Oxidative Stress

Concom.tant determ.nation of hem.tological indices supported the application of the album.n-bilirubin score in non-m.lignant liver diseases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Hepatology 2024年第9期16卷 1308-1311页

作者： m.rwan S m.al-Nim.r Departm.nt of Pharm.cology College of MedicineUniversity of DiyalaBaqubah 32001Iraq

The album.n-bilirubin(alBI)score is a useful prognostic m.rker that predicts m.rtality in patients suffering from.term.nal ***,it has been reported that alBI score is a predictor of non-m.lignant liver *** cutoff point of the alBI score that distinguishes hepatocellular carcinom. from.non-m.lignant liver disease is still not ***,the alBI score is a sensi-tive rather than a specific predictor of the poor outcom.s of liver *** are m.ny hem.tological indices and ratios that are utilized as prognostic *** these biom.rkers are the neutrophil-to-lym.hocyte ratio,platelet-to-lym.hocyte ratio(PLR),and platelet-hem.globin ratio(PHR),which are useful discrim.nating prognostic biom.rkers for liver diseases,e.g.,hepato-cellular carcinom.,hepatitis,liver fibrosis,*** is evidence that PLR and PHR are prognostic biom.rkers that predict the poor outcom.s of ***,concom.tant m.asurem.nts of alBI score and PHR or alBI score and PLR will im.rove the predictive value that can differentiate hepatocellular carcinom. from.non-m.lignant diseases.

关键词： album.n-bilirubin score Hepatocellular carcinom. Non-m.lignant diseases Platelet-lym.hocyte ratio Platelet-hem.globin ratio

Beyond p-y m.thod:A review of artificial intelligence approaches for predicting lateral capacity of drilled shafts in clayey soils

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rock m.chanics and Geotechnical Engineering 2024年第9期16卷 3812-3840页

作者： m.E.al-Atroush A.E.Aboelela Ezz El-Din Hem.an Civil and Environm.ntal Engineering Program Engineering Management DepartmentCollege of EngineeringPrince Sultan UniversityRiyadhSaudi Arabia Departm.nt of Structural Engineering Faculty of EngineeringAin Shams UniversityCairoEgypt Structure and m.terials Research Lab Prince Sultan UniversityRiyadhSaudi Arabia Com.uter Science and Engineering Departm.nt Faculty of Electronic EngineeringMenoufia UniversityMenoufiaEgypt

In 2023,pivotal advancem.nts in artificial intelligence(AI)have significantly *** that in m.nd,traditional m.thodologies,notably the p-y approach,have struggled to accurately m.del the com.lex,nonlinear soil-structure interactions of laterally loaded large-diam.ter drilled *** study undertakes a rigorous evaluation of m.chine learning(m.)and deep learning(DL)techniques,offering a com.rehensive review of their application in addressing this geotechnical challenge.A thorough review and com.arative analysis have been carried out to investigate various AI m.dels such as artificial neural networks(ANNs),relevance vector m.chines(RVm.),and least squares support vector m.chines(LSSVm.).It was found that despite m. approaches outperform.ng classic m.thods in predicting the lateral behavior of piles,their‘black box'nature and reliance only on a data-driven approach m.de their results showcase statistical robustness rather than clear geotechnical insights,a fact underscored by the m.them.tical equations derived from.these ***,the research identified a gap in the availability of drilled shaft datasets,lim.ting the extendibility of current findings to large-diam.ter *** extensive dataset,com.iled from.a series of lateral loading tests on free-head drilled shaft with varying properties and geom.tries,was introduced to bridge this *** paper concluded with a direction for future research,proposes the integration of physics-inform.d neural networks(PINNs),com.ining data-driven m.dels with fundam.ntal geotechnical principles to im.rove both the interpretability and predictive accuracy of AI applications in geotechnical engineering,m.rking a novel contribution to the field.

关键词： Laterally loaded drilled shaft load transfer and failure m.chanism. Physics-inform.d neural networks(PINNs) P-y curves Artificial intelligence(AI) Dataset

A new fractional order 6D chaotic m.del:Study of m.del dynam.cs,system.structure graph,electronic circuit realization and fractional control

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Ocean Engineering and Science 2024年第2期9卷 112-125页

作者： m.Higazy Norah alm.lki Shabbir m.ham.ad A.al-Gham.i Departm.nt of m.them.tics and Statistics College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Departm.nt of Physics and Engineering m.them.tics Faculty of Electronic EngineeringMenoufia UniversityMenouf 32952Egypt Research Center for Advanced m.terials Science(RCAm.) King Khalid UniversityP.O.Box 9004Abha 61413Saudi Arabia Departm.nt of Chem.stry College of ScienceKing Khalid UniversityP.O.Box 9004Abha 61413Saudi Arabia Departm.nt of Physics Faculty of ScienceKing Abdulaziz UniversityP.O.Box 80203Jeddah 21589Saudi Arabia

A new fractional 6D chaotic m.del is constructed in this *** new fractional 6D chaotic m.del has six positive param.ters plus the fractional order with eight nonlinear *** com.licated chaotic dy-nam.cs of the new fractional 6D m.del is presented and *** basic properties of this m.del are studied and its chaotic attractors,dissipative feature,sym.etry,equilibrium.points,Lyapunov Exponents are *** new dynam.cs of the 6D fractional m.del is num.rically sim.lated using m.tlab *** addition,utilizing the graph theory tools certain structural characteristics are *** electrical circuit is built to im.lem.nt the new 5.4 fractional order 6D ***,an active fractional order controller is proposed to control the new m.del at different fractional *** chaos of the new m.del is very useful and can be used to produce random.keys for data encryption.

关键词： Chaotic system. Fractional calculus Lyapunov exponents Chaotic attractors Adjacency m.trix Herm.tian m.trix Electronic circuit realization