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Traffic Engineering and Quality of service in Hybrid software Defined Networks

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China Communications 2024年第2期21卷 96-121页

作者： samiullah Mehraban rajesh kumar yadav IOT Lab Department of Computer Science&EngineeringDelhi Technological UniversityDelhi 110042India

For Future networks, many research projects have proposed different architectures around the globe;software Defined Network(sDN) architectures, through separating Data and Control Layers, offer a crucial structure for it. With a worldwide view and centralized Control, the sDN network provides flexible and reliable network management that improves network throughput and increases link utilization. In addition, it supports an innovative flow scheduling system to help advance Traffic Engineering(TE). For Medium and large-scale networks migrating directly from a legacy network to an sDN Network seems more complicated & even impossible, as there are High potential challenges, including technical, financial, security, shortage of standards, and quality of service degradation challenges. These challenges cause the birth and pave the ground for Hybrid sDN networks, where sDN devices coexist with traditional network devices. This study explores a Hybrid sDN network’s Traffic Engineering and Quality of services Issues. Quality of service is described by network characteristics such as latency, jitter, loss, bandwidth,and network link utilization, using industry standards and mechanisms in a Hybrid sDN Network. We have organized the related studies in a way that the Quality of service may gain the most benefit from the concept of Hybrid sDN networks using different algorithms and mechanisms: Deep reinforcement Learning(DrL), Heuristic algorithm, k path partition algorithm, Genetic algorithm, sOTE algorithm, rOAr method, and routing Optimization with different optimization mechanisms that help to ensure high-quality performance in a Hybrid sDN Network.

关键词： DrL hsDN QoE Qos sDN TE

Gas hydrate saturation from NGHP 02 LWD data in the Mahanadi Basin

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Energy Geoscience

Energy Geoscience 2024年第2期5卷 279-289页

作者： Uma shankar Pradeep kumar yadav sneha Devi Udham singh yadav Department of Geophysics Institute of ScienceBHUVaranasi221005India Oil and Natural Gas Corporation Ltd. Gas Hydrate Research&Technology Centre(GHRTC)Panvel410221Navi MumbaiIndia

During the Indian National Gas Hydrate Program(NGHP)Expedition 02,Logging-while-drilling(LWD)logs were acquired at three sites(NGHP-02-11,NGHP-02-12,and NGHP-02-13)across the Mahanadi Basin in area *** applied rock physics theory to available sonic velocity logs to know the distribution of gas hydrate at site NGHP-02-11 and *** physics modeling using sonic velocity at well location shows that gas hydrate is distributed mainly within the depth intervals of 150-265 m and 100 -215 mbsf at site NGHP-02-11 and NGHP-02-13,respectively,with an average saturation of about 4%of the pore space and the maximum concentration of about 40%of the pore space at 250 m depth at site NGHP-02-11,and at site NGHP-02-13 an average saturation of about 2%of the pore space and the maximum concentration of about 20%of the pore space at 246 m depth,as gas hydrate is distributed mainly within 100-246 mbsf at this *** of gas hydrate estimated from the electrical resistivity method using density derived porosity and electrical resistivity logs from Archie's empirical formula shows high saturation compared to that from the sonic ***,estimates of hydrate saturation based on sonic P-wave velocity may differ significantly from that based on resistivity,because gas and hydrate have higher resistivity than conductive pore fluid and sonic P-wave velocity shows strong effect on gas hydrate as a small amount of gas reduces the velocity significantly while increasing velocity due to the presence of *** site NGHP-02-11,gas hydrate saturation is in the range of 15%e30%,in two zones between 150-180 and 245-265 *** NGHP-02-012 shows a gas hydrate saturation of 20%e30%in the zone between 100 and 207 *** NGHP-02-13 shows a gas hydrate saturation up to 30%in the zone between 215 and 246 *** observations from rock physics modeling and Archie’s approximation show the gas hydrate concentrations are relatively low(re space)at the sites of the

关键词： Mahanadi Basin Gas hydrate sonic log Effective medium modeling Electrical resistivity log Archie’s analysis Gas hydrate saturation

Modulatory role of plant-derived metabolites on host-microbiota interactions:personalized therapeutics outlook

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BIOCELL 2024年第8期48卷 1127-1143页

作者： POOJA yadav NAr sINGH CHAUHAN Department of Biochemistry Maharshi Dayanand University RohtakRohtakHaryanaIndia

A diverse array of microbes in and on the human body constitute the *** micro-residents continuously interact with the human host through the language of metabolites to dictate the host’s physiology in health and *** biotic and abiotic component ensuring a balanced host-microbiota interaction are potential microbiome therapeutic agents to overcome human *** metabolites are continually being used to treat various *** metabolites target the host’s metabolic machinery and host-gut microbiota interactions to overcome human *** the paramount therapeutic significance of the factors affecting host-microbiota interactions,a comprehensive overview of the modulatory role of plant-derived metabolites in host-microbiota interactions is *** current review puts an effort into comprehending the role of medicinal plants in gut microbiota modulation to mitigate various human *** would develop a holistic understanding of hostmicrobiota interactions and the role of effectors in health and diseases.

关键词： Microbiome therapeutics Human gut microbiota Host-microbiota interactions Personalized therapeutics Plant metabolites Human health and diseases

Progress in metal oxide-based electrocatalysts for sustainable water splitting

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Materials reports(Energy) 2024年第3期4卷 19-34页

作者： Aasiya s.Jamadar rohit sutar susmita Patil reshma khandekar Jyotiprakash B.yadav Vacuum Techniques and Thin Film Laboratory USICShivaji UniversityKolhapur416004MaharashtraIndia

Metal oxide-based electrocatalysts are promising alternatives to platinum group metals for water splitting due to their low cost,abundant raw materials,and impressive *** review covers recent progress in various metal oxides tailored for hydrogen and oxygen evolution reactions,discussing their crystal structure,composition,and surface modification influence on *** like surface engineering,doping,and nanostructuring are evaluated for enhancing catalytic activity and *** key considerations for commercialization are highlighted,emphasizing ongoing research,innovation,and future scope to drive widespread adoption of water-splitting technology for a cleaner and sustainable future.

关键词： Metal oxide HEr OEr Electrocatalyst Overall water spilling

Astrophysical s-factor and reaction rate for 15N(p,γ)16O within the modified potential cluster model

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Chinese Physics C 2024年第4期48卷 130-145页

作者： s.B.Dubovichenko A.s.Tkachenko r.Ya.kezerashvili N.A.Burkova B.M.Yeleusheva Fesenkov Astrophysical Institute 050020 AlmatyKazakhstan New York City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate school and University Center City University of New York10016 New YorkUSA al-Farabi kazakh National University 050040 AlmatyKazakhstan

We study radiative p^(15)N capture on the ground state of ^(16)O at stellar energies within the framework of a modified potential cluster model(MPCM)with forbidden states,including low-lying *** investigation of the ^(15)N(p,γ0)^(16)O reaction includes the consideration of ^(3)s_(1) resonances due to E1 transitions and the contribution of the ^(3)P_(1) scattering wave in the p+^(15)N channel due to the ^(3)P_(1)→^(3)P_(0)M1 *** calculated the astrophysical low-energy s-factor,and the extrapolated s(0)turned out to be within 34.7−40.4 keV·*** important role of the asymptotic constant(AC)for the ^(15)N(p,γ0)16O process with interfering ^(3)s_(1)(312)and ^(3)s_(1)(962)resonances is elucidated.A comparison of our calculation for the s-factor with existing experimental and theoretical data is addressed,and a reasonable agreement is *** reaction rate is calculated and compared with the existing *** has negligible dependence on the variation of AC but shows a strong impact of the interference of ^(3)s_(1)(312)and ^(3)s_(1)(962)resonances in reference to the CNO Gamow windows,especially at low *** estimate the contribution of cascade transitions to the reaction rate based on the exclusive experimental data from ***.C.85,065810(2012).The reaction rate enhancement due to the cascade transitions is observed from T_(9)>0.3 and reaches the maximum factor~1.3 at T_(9)=*** present the Gamow energy window and a comparison of rates for radiative proton capture reactions ^(12)N(p,γ)^(13)O,^(13)N(p,γ)^(14)O,^(14)N(p,γ)^(15)O,and ^(15)N(p,γ)^(16)O obtained in the framework of the MPCM and provide the temperature windows,prevalence,and significance of each process.

关键词： low and astrophysical energies p^(15)N system thermonuclear reaction rate potential cluster model CNO-cycle

Automated Time Based Multi-Criteria Bug Triage Approach:Developer Working Efficiency and social Network Based Developer recommendation

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Journal of shanghai Jiaotong university(science) 2024年第3期29卷 566-578页

作者： yadav Asmita sINGH kumar sandeep krishna Engineering College Ghaziabad 201007India JIIT Noida 201309India

In software development projects,bugs are common *** report bugs in open source *** is a need to develop high quality developer prediction model that considers developer work satisfaction,keep within limited development cost,and improve bug resolution *** address and resolve bug report as soon as possible is the main focus of triager when a new bug is ***,developer work efficiency is an important factor in *** address these issues,a proposed approach recommends a set of developers that could potentially share their knowledge with each other to fix new bug *** proposed approach is called developer working efficiency and social network based developer recommendation(Dwesn).It is a composite model that builds developers'profile by using developer average bug fixing time,work efficiency to fix variety of bugs,as well as the developer's social interactions with other developers.A similarity measure is applied between new bug and bugs in corpus to extract the list of capable developers from the *** proposed approach only selects those developers who are active and less loaded with *** developer with the highest profile score is assigned the *** evaluated our approach on the subset of five large open-source projects including Mozilla,Netbeans,Eclipse,Firefox and OpenOffice,and compared it with the *** results demonstrate that combination of developers'efficiency with their average bug fixing time and interactions in their social network gives good accuracy and efficiently reduces bug tossing *** approach shows an improvement in prediction accuracy,precision,recall,F-score and reduced bug tossing length up to 93.89%,93.12%,93.46%,93.27%and 93.25%,*** proposed approach achieved a 93%hit ratio and 93.34%mean reciprocal rank,indicating that our proposed triager is able to efficiently assign bugs to correct developers.

关键词： open-source repository bug report bug assignment tossing length bug triager developer social network developer recommendation

smart tailoring of molecular catalysts:Mounting approach to oxygen reduction reaction

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Journal of Materials science & Technology 2024年第1期168卷 169-184页

作者： Anuj kumar Mohd Ubaidullah Guoxin Zhang Jasvinder kaur saira Ajmal Mudassir Hasan krishna kumar yadav Hafiz M.Adeel sharif ram k.Gupta Ghulam Yasin Nano-Technology research Laboratory Department of ChemistryGLA UniversityMathuraUttar Pradesh 281406India Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdaoShandong 266590China Institute for Advanced study Shenzhen UniversityShenzhenGuangdong 518060China Department of Chemistry Kansas Polymer Research CenterPittsburg State UniversityPittsburgKS 66762United States Faculty of science and Technology Madhyanchal Professional UniversityRatibadBhopal 462044India Environmental and Atmospheric sciences research Group Scientific Research CenterAl-Ayen UniversityThi-QarNasiriyah 64001Iraq Department of Chemical Engineering king khalid University Saudi Arabia Department of Chemistry School of SciencesIFTM UniversityMoradabadUttar Pradesh 244102India research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808China school of Environment and Civil Engineering Dongguan University of TechnologyDongguanGuangdong 523808China

Efficient electrocatalytic rupture of energy-rich molecules(H_(2)and O_(2))is a green approach for gener-ating clean energy for modern *** this context,porphyry-type molecular electrocatalysts act intelligently toward oxygen reduction reaction(Orr),a fundamental process in fuel cells,due to their redox-rich chemistry,which involves core metal ions and macrocyclic *** concerned scientific community has tried many times to correlate the Orr intermediates with their formation kinetics and simplify the associated multi H+/e-stages during the Orr process,constructing several volcano plots be-tween catalytic Tafel data,turnover frequencies,and overpotentials for many *** the fact that many review articles on molecular electrocatalysts for Orr have been published,understanding the strategic implications and molecular catalyst intelligence towards homogenous Orr has been poorly *** review examined the relationships between volcano plots of current *** parameters and the sabatier principle in order to explain the intelligence of molecular electrocatalysts and approaches for their creation,as well as the difficulties and potential prospects of molecular *** facts distinguish this review from previously published articles and will pique the scien-tific community’s interest in avoiding trial-and-error procedures for catalyst creation while also allowing for more exact evaluations of the molecular catalyst’s performance.

关键词： Electrocatalysis Molecular catalysts Oxygen reduction reaction sabatier principle

Excellent photoluminescence and electrochemical properties of sm^(3+) doped Ca_(2)Mgsi_(2)O_(7) nanophosphor:Display and electrochemical sensor applications

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Journal of rare Earths 2024年第6期42卷 1046-1055,I0002页

作者： r.B.Basavaraj k.sureshkumar D.P.Aarti M.B.Madhusudana reddy G.Nagaraju T.ramakrishnappa G.r.Navyashree k.r.Venkatesha Babu k.s.Hemalatha Department of Physics BMS Institute of Technology and ManagementBangalore560064India Department of Chemistry BMS Institute of Technology and ManagementBangalore560064India Department of Chemistry School of Applied SciencesREVA UniversityBangalore560064India Energy Materials researchLaboratory Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia school of Physical sciences REVA UniversityBangalore560057Indi Department of Physics Govt.Science CollegeBengaluru560001India Department of Physics Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A series of orange-red light emitting Ca_(2)Mgsi_(2)O_(7):sm^(3+)nanopowders were fabricated via low-cost ecofriendly green combustion technique using Aloe vera gel as *** phase purity of the samples were confirmed by the powder X-ray diffraction(PXrD)*** single-phase tetragonal structure is observed from the PXrD results with no additional impurity *** band gap energy of the fabricated powders was estimated by diffuse reflectance spectra(Drs)and is found to be in the range of 4.01-5.98 eV.A high resolution scanning electron microscope(sEM)was used to study the morphological behaviour of the ***-like structures are observed from the sEM *** particle size was evaluated by transmission electron microscopy(TEM)and is found to be~50 *** interplanar distance is found to be 0.53 *** properties were systematically studied in *** phosphors are successfully excited at 403 nm NUV light,producing reddish-orange characteristic *** emission peaks are centered at 558(^(4)G_(5/2)→^(6)H_(5/2)),607(^(4)G_(5/2)→^(6)H_(7/2))and 645 nm(^(4)G_(5/2)→^(6)H_(9/2)),*** the observed peaks the red emanation(^(4)G_(5/2)→^(6)H_(7/2))is stronger than the orange emission(^(4)G_(5/2)→^(6)H_(5/2))in the current *** photoluminescent concentration quenching is noticed above 5 mol%sm^(3+)ion doping *** dipole-dipole interaction resulting in cross relaxation is found to be the principal cause of concentration quenching *** color features such as Commission Internationale de I’Eclairage(CIE)and correlated color temperature(CCT)were studied in *** optimized chromaticity coordinates were estimated to be(0.6363,0.3632),which fall in the reddish-orange *** average CCT value obtained is 3362 *** average color purity is found to be~82%.sm^(3+)incorporated Ca_(2)Mgsi_(2)O_(7) samples are possible contender for single white light generation commercial candidates owing to

关键词： Green combustion Photoluminescence Orange-red emission Color purity sensors rare earths

Attitude and willingness on gamete donation among medical students:An experience from a state university in sri Lanka

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Asian pacific Journal of reproduction 2024年第3期13卷 120-125页

作者： s.raguraman k.Muhunthan r.Niroje Department of Obstetrics and Gynaecology Faculty of MedicineUniversity of JaffnaJaffnaSri Lanka Teaching Hospital Jaffna JaffnaSri Lanka

Objective:To assess the attitude and willingness of medical students of the Faculty of Medicine,University of Jaffna,regarding gamete ***:An institutional-based descriptive cross-sectional study was conducted at the Faculty of Medicine,University of Jaffna,from september 2022 to May 2023 among undergraduate medical students who gave their voluntary participation.A self-administered questionnaire was used as a study instrument to collect data regarding their attitude and willingness toward gamete ***:A total of 345 participants were recruited and their sociodemographic data revealed that 56.8%of the participants were female,62.3%aged between 26 and 30 years,and 92.2%were *** of them received information regarding gamete donations during their clinical *** half(67.8%)of them showed a negative attitude towards gamete *** willingness,only 39.7%of participants had a positive approach for being a gamete donor;among them,84.7%preferred anonymous *** and ethnicity had a significant influence on their attitudes and *** addition,male was also found to be more willing to donate ***:Most medical students have negative views about gamete *** awareness and knowledge of assisted reproductive technology and gamete donation within medical students'sociocultural and ethical backgrounds might facilitate a change in attitude towards gamete donation amongst future medical practitioners.

关键词： Medical students Gamete donation Assisted reproductive technology Attitude Viewpoint