检索结果-南通市图书馆

Journal of Ocean Engineering and Science 2020年第3期5卷 197-204页

作者： Mohammad Parto-Haghighi jalil manafian Department of Mathematics University of BonabBonabIran Department of Applied Mathematics Faculty of Mathematical ScienceUniversity of TabrizTabrizIran

The nonlinear two-point boundary value problem(TPBVP)is converted to a new form of the problem including integral *** the combination of weak-form integral equation method(WFIEM)and special functions create a robust and applicable numerical scheme to solve the *** display the accuracy of our method,some examples are ***,the fractional Boussinesq-like equation involving the β-derivative has been considered that describes the propagation of small amplitude long capillary-gravity waves on the surface of shallow water.

关键词： Fractional order exponential trial functions BVPs Adjoint test functions Weak-form integral equation method Two-point boundary value problem Fractional Boussinesq-like equation

Multiple rogue wave and solitary solutions for the generalized BK equation via Hirota bilinear and SIVP schemes arising in fluid mechanics

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2020年第7期72卷 8-20页

作者： jalil manafian Onur Alp Ilhan As’ad Alizadeh Sizar Abid Mohammed Department of Applied Mathematics Faculty of Mathematical SciencesUniversity of TabrizTabrizIran Department of Mathematics Faculty of EducationErciyes University38039-Melikgazi-KayseriTurkey Department of Mechanical Engineering Urmia University of TechnologyUrmiaIran Department of Mechanical Engineering College of EngineeringUniversity of ZakhoZakhoIraq Department of Mathematics College of Basic EducationUniversity of DuhokZakho Street 381006 AJ DuhokIraq

The multiple lump solutions method is employed for the purpose of obtaining multiple soliton solutions for the generalized Bogoyavlensky-Konopelchenko(BK)*** solutions obtained contain first-order,second-order,and third-order wave *** the critical point,the second-order derivative and Hessian matrix for only one point is investigated,and the lump solution has one maximum ***’s semi-inverse variational principle(SIVP)is also used for the generalized BK *** major cases are studied,based on two different ansatzes using the *** physical phenomena of the multiple soliton solutions thus obtained are then analyzed and demonstrated in the figures below,using a selection of suitable parameter *** method should prove extremely useful for further studies of attractive physical phenomena in the fields of heat transfer,fluid dynamics,etc.

关键词： multiple rogue wave solutions multiple soliton solutions generalized Bogoyavlensky–Konopelchenko equation semi-inverse variational principle

Multi-Waves,Breathers,Periodic and Cross-Kink Solutions to the(2+1)-Dimensional Variable-Coefficient Caudrey-Dodd-Gibbon-Kotera-Sawada Equation

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2021年第1期20卷 35-44页

作者： LIU Dong JU Xiaodong ILHAN Onur Alp manafian jalil ISMAEL Hajar Farhan State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China China Petroleum Materials Company Limited Beijing 100029China Department of Mathematics Erciyes UniversityMelikgazi-Kayseri 38039Turkey Department of Applied Mathematics Faculty of Mathematical SciencesUniversity of TabrizTabriz ***Iran Department of Mathematics Faculty of ScienceUniversity of ZakhoZakho 42002Iraq

The present article deals with multi-waves and breathers solution of the(2+1)-dimensional variable-coefficient CaudreyDodd-Gibbon-Kotera-Sawada equation under the Hirota bilinear operator *** obtained solutions for solving the current equation represent some localized waves including soliton,solitary wave solutions,periodic and cross-kink solutions in which have been investigated by the approach of the bilinear ***,by choosing specific parameter constraints in the multi-waves and breathers,all cases the periodic and cross-kink solutions can be captured from the 1-and *** obtained solutions are extended with numerical simulation to analyze graphically,which results in 1-and 2-soliton solutions and also periodic and cross-kink solutions *** will be extensively used to report many attractive physical phenomena in the fields of acoustics,heat transfer,fluid dynamics,classical mechanics,and so *** have shown that the assigned method is further general,efficient,straightforward,and powerful and can be exerted to establish exact solutions of diverse kinds of fractional equations originated in mathematical physics and *** have depicted the figures of the evaluated solutions in order to interpret the physical phenomena.

关键词： variable-coefficient Caudrey-Dodd-Gibbon-Kotera-Sawada equation Hirota bilinear operator method soliton multi-waves and breathers periodic and cross-kink solitray wave solutions

Multiple-order line rogue wave,lump and its interaction,periodic,and cross-kink solutions for the generalized CHKP equation

在线全文

学校读者我要写书评

暂无评论

Propulsion and Power Research 2021年第3期10卷 277-293页

作者： Yufeng Qian jalil manafian Sherin Youns Mohyaldeen Liqaa S.Esmail Sergey Alekseevich Gorovoy Gurpreet Singh School of Science Hubei University of TechnologyWuhan430068China Department of Applied Mathematics Faculty of Mathematical SciencesUniversity of TabrizTabrizIran Natural Sciences Faculty Lankaran State University50H.Aslanov Str.LankaranAzerbaijan Business Administration Department Zakho Technical InstituteDuhok Polytechnic UniversityKurdistan RegionIraq Pharmacy Department Duhok Technical InstituteDuhok Ploytechnic UniversityKurdistan RegionIraq Department of Machine Repair and Materials Science Kuban State Agrarian University Named After I.T.TrubilinKrasnodarRussian Federation Department of Mathematics Sant Baba Bhag Singh UniversitiyJalandhar144030India

The multiple-order line rogue wave solutions method is emp loyed for searching the multiple soliton solutions for the generalized(2+1)-dimensional Camassa-HolmKadomtsev-Petviashvili(CHKP)equation,which contains first-order,second-order,and third-order waves *** the critical point,the second-order derivative and Hessian matrix for only one point will be investigated and the lump solution has one minimum *** the case,the lump solution will be shown the bright-dark lump structure and for another case can be present the dark lump structure-two small peaks and one deep ***,the interaction of lump with periodic waves and the interaction between lump and soliton can be obtained by introducing the Hirota *** the meanwhile,the cross-kink wave and periodic wave solutions can be gained by the Hirota *** physical phenomena of these gained multiple soliton solutions are analyzed and indicated in figures by selecting suitable *** alternative offer that the determining method is general,impressive,outspoken,and powerful and can be exerted to create exact solutions of various kinds of nonlinear models originated in mathematical physics and engineering.

关键词： Multiple rogue wave solutions Multiple soliton solutions Generalized CamassaHolm-KadomtsevPetviashvili equation Lump solution Hirota operator

Evaluation of Organic Matter Richness of Eocene Strata Based on Calcareous Nannofossils and Rock-Eval Analysis in North Dezful, Iran

维普期刊数据库评论

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 Earth Science 2021年第4期32卷 1022-1034页

作者： Mohammad Parandavar jalil Sadouni Exploration Directorate of the National Iranian Oil Company Studies and Researches OfficeTehranIran Department of Geology Faculty of sciencesFerdowsi University of MashhadMashhadIran

Hydrocarbon source potential of the Paleogene Pabdeh Formation was studied by means of organic geochemistry and distribution of calcareous *** on the results,an Eoceneaged organic matter(OM)-rich interval was identified and traced across different parts of the North Dezful zone and partly Abadan *** order to characterize the OM quality and richness of the studied intervals,Rock-Eval pyrolysis and nannofossils evaluation were performed,and the geochemical data collected along selected wells were correlated to capture the variations of thickness and source potential of the OM-rich ***,remarkable variations were identified within the depth ranges of 2480–2552 m and also 2200–2210 m,which were attributed to the maximum increase in the rate of growth R-selected *** increase in the productivity rate was found to be well correlated to high Rock-Eval total organic carbon(TOC)and hydrogen index(HI)*** that the maturity of Pabdeh Formation in the studied area was found to have reached the oil window,we expect significant hydrocarbon generation(Type II kerogen),making the play economically highly promising.

关键词： calcareous nannofossils Rock-Eval organic geochemistry Paleogene paleo-productivity diversity Dezful

Characteristics of the First Occurrence of Jurassic Petroleum in the Zagros Basin, Iran

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2018年第6期92卷 2280-2296页

作者： Sadouni jalil Rabbani AHMADREZA AmirKabir University of Technology Faculty of Petroleum Engineering

After two well tests in the Asmari well#A, located in the North Dezful zone, it was concluded that in the Jurassic Mus/Alan/Neyriz and Upper Sargelu reservoirs, highly mature colorless oil and gas were trapped, including 4%-6% H2 S. The alternation of Garau shale and the Gotnia anhydrite seal was so efficient that it did not allow the upward migration of petroleum from Jurassic reservoirs to higher levels. Descriptive ratios, chromatograms, pick correlation and cross plots demonstrated that the oil and gas have been derived from a TOC-enriched sequence, consisting of the base of the Garau and the top of the Sargelu Formations. This highly organic matter-rich sequence is traceable as an oil shale in other parts of the North Dezful zone, such as the Gashun section. The petroleum accumulations in both reservoirs are identical, have the same maturity and the same source. Diagrams of δ13 C2 versus δ13 C3, δ13 C1 versus wetness of gas(C1/C2+C3) and δ13 C1 versus δDC1 suggest that the gas is derived from a highly mature source. There are indications of TSR effects on the original petroleum that could have changed the volumetric and isotopic composition of the oil and gas. This result requires more careful study of the petroleum components to be undertaken.

关键词： isotope wetness enrichment migration oil shale

An analytical framework for the incorporation of non-orthogonal pilots in massive MIMO systems

在线全文

学校读者我要写书评

暂无评论

Digital Communications and Networks 2024年第5期10卷 1267-1279页

作者： Navid Pourjafari jalil Seifali Harsini Department of Electrical Engineering The University of Guilan

Training-based cellular communication systems use orthogonal pilot sequences to limit pilot ***,the orthogonality constraint imposes a certain pilot length,and therefore,in communication systems with a large number of users,time-frequency resources are wasted significantly in the training *** cellular massive MIMO systems,the time-frequency resources can be used more efficiently by replacing the orthogonal pilots with shorter non-orthogonal pilot sequences in such a way that more space is available for the transmission of additional data symbols,and thus achieving higher data *** course,the use of non-orthogonal pilots introduces additional pilot contamination,so the performance improvement could be achieved under certain system conditions,which are thoroughly investigated in this *** first provide a performance analysis framework for the uplink of cellular massive MIMO systems in which the effect of user pilot non-orthogonality has been analytically *** this framework,we derive analytical expressions for the channel estimation,user Signal-to-Interference-plus-Noise-Ratio(SINR),and the average channel capacity per *** then use the proposed framework to evaluate the achievable spectral efficiency gain obtained by replacing orthogonal pilots with non-orthogonal *** particular,the existing trade-off between pilot lengths and the additional data symbols that can be transmitted by reducing the number of pilot symbols,is numerically quantified over a wide range of system parameters.

关键词： Massive MIMO Non-orthogonal pilots Cellular systems Performance analysis

Experimental investigation and adaptive neural fuzzy inference system prediction of copper recovery from flotation tailings by acid leaching in a batch agitated tank

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2019年第5期26卷 538-546页

作者： jalil Pazhoohan Hossein Beiki Morteza EsfANDyari Department of Chemical Engineering Quchan University of Technology Department of chemical engineering University of Bojnord

The potential of copper recovery from flotation tailings was experimentally investigated using a laboratory-mixing tank. The experiments were performed with solid weight percentages of 30 wt%, 35 wt%, 40 wt% and 45 wt% in water. The measurements revealed that adding sulfuric acid all at once to the tank rapidly increased the efficiency of the leaching process, which was attributed to the rapid change in the acid concentration. The rate of iron dissolution from tailings was less than when the acid was added gradually. The sample with 40 wt% solid is recommended as an appropriate feed for the recovery of copper. The adaptive neural fuzzy system(ANFIS) was also used to predict the copper recovery from flotation tailings. The back-propagation algorithm and least squares method were applied for the training of ANFIS. The validation data was also applied to evaluate the performance of these models. Simulation results revealed that the testing results from these models were in good agreement with the experimental data.

关键词： flotation tailings leaching copper environments adaptive neural fuzzy inference system

Oxidation Properties in CO_2 of Inconel Alloy 600 Coated by Simultaneous Aluminizing-Chromizing Process

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2007年第2期20卷 134-139页

作者： Ahmed Moosa jalil Karim Ahmed Ali Hoobi The University of Technology Baghdad-Iraq Ministry of Labor and Social Affairs Baghdad-Iraq Ministry of Science and Technology Baghdad-Iraq

IN 600 alloy was coated with two different types of coatings, Cr-modified aluminide coating this is called aluminizing-chromizing and Y-doped chromium modified aluminide coating this is called aluminizing-chromizing-yttriumizing. Diffusion coating was carried at 1 050℃ for 8 h under Ar atmosphere by simultaneous aluminizing-chromizing process and by simultaneous aluminizing-chromizing- yttriumizing. Cyclic oxidation tests were conducted on the uncoated and on the coated Inconel 600 alloy in the temperature range 800- 1 000℃ in CO2 for 100 h at 10 h *** results showed that the oxidation kinetics for uncoated Inconel 600 alloy in CO2 is parabolic and the phases present are NiO, （Fe, Cr）2O3 , NiFe2O4 and NiCrO4. The oxidation kinetics for both coated systems in CO2 was found to be parabolic and the value ofkp for both coated systems were found to be lower than that for uncoated Inconel 600 alloy. Oxide phases that formed on coated systems are Al2O3 and NiCrO4. The role of yttrium can be attributed to its ability to improve the adherence of the oxide scale.

关键词： Inconel oxidation diffusion bonding aluminizing-chromizing Ni-superalloy

Study of Hydrogen Adsorption on Pt/WO_3-ZrO_2 through Pt Sites

在线全文

学校读者我要写书评

暂无评论

Journal of Natural Gas Chemistry 2007年第3期16卷 252-257页

作者： Sugeng Triwahyono Aishah Abdul jalil Hideshi Hattori Ibnu Sina Institute for Fundamental Science Studies Faculty of SciencesUniversiti Teknologi Malaysia81310 UTM SkudaiJohorMalaysia Faculty of Chemical & Natural Resources Engineering Universiti Teknologi Malaysia81310 UTM SkudaiJohorMalaysia Center for Advanced Research of Energy Technology Hokkaido UniversityNishi 5Kita 8Sapporo060-0808Japan

The rate determining step and the energy barrier involved in hydrogen adsorption on Pt/WO3- ZrO2 were studied based on the assumption that the hydrogen adsorption occurs only through Pt sites. The rate of hydrogen adsorption on Pt/WOa-ZrO2 was measured in the adsorption temperature range of 323-573 K and an initial hydrogen pressure of 50 Torr. The rates of hydrogen uptake were very high for the initial few minutes and the adsorption continued for more than 5 h below 523 K. The hydrogen uptake far exceeded the H/Pt ratio of unity for all adsorption temperatures, indicating that the adsorption of hydrogen involved the dissociative adsorption of hydrogen on Pt sites to form hydrogen atoms, the spillover of hydrogen atoms onto the surface of the WO3-ZrO2 catalyst, the diffusion of spiltover hydrogen atom over the surface of the WO3-ZrO2 catalyst, and the formation of protonic acid site originated from hydrogen atom by releasing an electron in which the electron may react with a second hydrogen atom to form a hydride near the Lewis acid site. The rate determining step was the spillover with the activation energy of 12.3 kJ/mol. The rate of hydrogen adsorption cannot be expressed by the rate equation based on the assumption that the rate determining step is the surface diffusion. The activity of Pt/WO3-ZrO2 was examined on n-heptane isomerization in which the increase of hydrogen partial pressure provided positive-effect on the conversion of n-heptane and negative-effect on the selectivity towards iso-heptane.

关键词： Pt/WO3-ZrO2 Pt sites hydrogen adsorption spillover n-heptane isomerization