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Folded novel accurate analytical and semi-analytical solutions of a generalized Calogero–Bogoyavlenskii–Schiff equation

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Communications in Theoretical Physics 2021年第9期73卷 26-36页

作者： Mostafa M A Khater S K Elagan M A El-Shorbagy S H Alfalqi J F Alzaidi Nawal A Alshehri Department of Mathematics Faculty of ScienceJiangsu University212013ZhenjiangChina Department of Mathematics Obour High Institute For Engineering and Technology11828CairoEgypt Department of Mathematics Faculty of ScienceTaif University P.O.Box 11099Taif 21944Saudi Arabia Department of Mathematics College of Science and Humanities in Al-KharjPrince Sattam bin Abdulaziz UniversityAl-Kharj 11942Saudi Arabia Department of Basic Engineering science Faculty of EngineeringMenoufia UniversityShebin El-Kom 32511Egypt Department of Mathematics Faculty of Science and ArtsMahayil Asir King Khalid UniversityAbhaSaudi Arabia

This paper studies the analytical and semi-analytic solutions of the generalized Calogero–Bogoyavlenskii–Schiff(CBS)*** model describes the(2+1)–dimensional interaction between Riemann-wave propagation along the y-axis and the x-axis *** extended simplest equation(ESE)method is applied to the model,and a variety of novel solitarywave solutions is *** solitary-wave solutions prove the dynamic behavior of soliton waves in *** accuracy of the obtained solution is verified using a variational iteration(VI)semi-analytical *** analysis and the match between the constructed analytical solution and the semi-analytical solution are sketched using various diagrams to show the accuracy of the solution we *** adopted scheme’s performance shows the effectiveness of the method and its ability to be applied to various nonlinear evolution equations.

关键词： generalized Calogero-Bogoyavlenskii-Schiff equation accurate analytical semianalytical solutions

MORPHOLOGY EVOLUTION OF POLY(St-co-BuA)/SILICA NANOCOMPOSITE PARTICLES SYNTHESIZED BY EMULSION POLYMERIZATION

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Chinese Journal of Polymer science 2006年第3期24卷 323-331页

作者： Hua Li 周树学 Bo You Li-min Wu Department of Materials science The Advanced Coatings Research Center of China Educational Ministry Fudan University Shanghai 200433 China faculty of Chemistry and Materials science Hubei University Wuhan 430062 China

Poly（St-co-BuA）/silica nanocomposite latexes were synthesized via conventional emulsion polymerization in the presence of 3-（trimethoxysilyl）propyl methacrylate modified colloidal nano-silica. The effects of surface property, particle size and content of colloidal nano-silica as well as the concentrations of monomer and surfactant on the morphology of nanocomposite latex particles were investigated by transmission electron microscope （TEM） and scanning electron microscope （SEM） in detail. Various interesting morphologies such as grape-like, Chinese gooseberry-like, pomegranate-like and normal core-shell structures were observed. Droplet nucleation mechanism competing with micelle nucleation mechanism was proposed to explain the morphological evolution of the nanocomposite particles.

关键词： Morphology Colloidal nano-silica Nanocomposite particle Emulsion polymerization.

Relationship between niche breadth and range shifts of Rhinopoma muscatellum(Chiroptera:Rhinopomatidae)in climate change scenarios in arid and semiarid mountainous region of Iran

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Journal of Mountain science 2021年第9期18卷 2357-2376页

作者： Sasan KAFAEI Peyman KARAMI Robab MEHDIZADEH Vahid AKMALI Department of Biology Faculty of ScienceRazi UniversityKermanshah ***Iran Department of Environmental sciences Faculty of Natural Resources and Environment SciencesMalayer UniversityMalayer 65719-95863Iran

Rapid climate change has provided the opportunity for many species to learn to adapt fast enough to modify their range *** positive and negative responses of the species in terms of distribution are related to parameters such as kind of species,degree of specialization,size and movement skills,and such *** to high elevations and transitions to higher latitudes are among the strategies proposed as a solution to the negative effects of climate ***,predicting how different species respond to climate change can help predict the conservation program for *** distribution models(SDMs)are widely used to predict the geographical distribution of habitat suitability and species *** muscatellum is one of the three mousetailed bats(Rhinopomatidae)inhabiting the southeastern,southern,and southwestern parts of Iran and its distribution range to the interior and northern parts of Iran has been limited by the Elburz and Zagros *** study the effect of climate change on this species,range shifts and coverage of protected regions,74 presence points and environmental variables(climate,topography,anthropogenic,and vegetation)in MaxEnt software were *** the implementation of the model,the autocorrelation of the presence points was reduced and the selection of pseudo absent points was limited by using the bias *** variables were prepared for Mid-Holocene,Current,Climate Current,and Future scenarios in 2070(RCP2.6,RCP4.5,RCP6,and RCP8.5).In order to evaluate the overlap of ecological niche,the Schoener’s D and I statistic metrics were ***,to measure the breadth of the niches,B1(inverse concentration)and B2(uncertainty)metrics in ENMTOOLS software were *** statistics were used as a *** distribution trend changes in climatic scenarios were performed by the Mann Kendall(MK)*** on the results,the AUC values for current and future climate models were calculated to be 0.89 a

关键词： Chiroptera Rhinopoma muscatellum Zagros Mountains Climatic changes MaxEnt Iran

Cytotoxic effects of Thai noni juice product ethanolic extracts against cholangiocarcinoma cell lines

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Asian Pacific Journal of Tropical Biomedicine 2021年第8期11卷 353-362页

作者： Jeerati Prompipak Thanaset Senawong Banchob Sripa Prasan Swatsitang Paweena Wongphakham Gulsiri Senawong Department of Biochemistry Faculty of ScienceKhon Kaen UniversityKhon Kaen 40002Thailand Natural Product Research Unit Faculty of ScienceKhon Kaen UniversityKhon Kaen 40002Thailand Department of Pathology Faculty of MedicineKhon Kaen UniversityKhon Kaen 40002Thailand

Objective:To investigate the cytotoxic activity and molecular mechanism(s)of two Thai noni juice(TNJ)products ethanolic extracts against cholangiocarcinoma(CCA)cell lines and non-cancerous cells,and to explore phenolic acid compositions of TNJ ***:Phenolic acid profiles of TNJ Chiangrai(TNJ-Cr)and TNJ Buasri(TNJ-Bs)ethanolic extracts were determined by *** cytotoxicity of TNJ ethanolic extracts on cancer and non-cancerous cells was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide and trypan blue ***(s)underlying the anti-CCA activity of TNJ ethanolic extracts were determined by cell cycle,apoptosis,and reactive oxygen species(ROS)generation *** expression levels of proteins involved in apoptosis and ERK signaling were evaluated by Western blot ***:Phenolic acid profiles of both TNJ ethanolic extracts showed that the p-hydroxybenzoic,vanillic,and protocatechuic acids were the major phenolic acids in TNJ *** assays revealed that the TNJ-Cr and TNJ-Bs ethanolic extracts reduced viability of CCA cell lines through induction of apoptosis by up-regulation of p53 and Bax proapoptotic *** TNJ ethanolic extracts promoted ROS generation by activating the ERK1/2 signaling in well-differentiated CCA cells ***,TNJ ethanolic extracts did not induce ROS production in poorly differentiated CCA cells *** TNJ ethanolic extracts showed no toxicity to human peripheral blood mononuclear ***:TNJ ethanolic extracts could inhibit CCA cell proliferation by inducing ROS generation and apoptosis and may be applicable for combination therapies in CCA treatment.

关键词： Antiproliferation Apoptosis Bile duct cancer Cholangiocarcinoma Morinda citrifolia L. Noni Oxidative stress Reactive oxygen species ERK

Fe-Ti Oxide Mineralization in the XV Intrusion,Bafq Mining District,Central Iran:Insights from Mineralogy,Mineral Chemistry and S Isotopic Data

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Journal of Earth science 2024年第5期35卷 1704-1719页

作者： Sakine Amraei Majid Ghasemi Siani Mohammad Yazdi Liang Qiu Bertrand Moine Minghua Ren Department of Inorganic Geology and Water Faculty of Earth SciencesShahid Beheshti UniversityTehran Q9XV+XG7Iran Department of Geochemistry Faculty of Earth SciencesKharazmi UniversityTehran PC3G+QPJIran State Key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences and ResourcesChina University of GeosciencesBeijing 100083China Université Clermont Auvergne CNRSIRDOPGCLaboratoire Magmas et VolcansAubiere F-63178France Department of Geoscience University of NevadaLas Vegas NV 89154USA

The mafic-ultramafic intrusion in the XV anomaly area,contains magmatic Fe-Ti oxides±(p)ore,is located in the Bafq mining district in the Central *** consists of cumulate and layered Fe-Ti-bearing gabbros and *** mineral assemblages include clinopyroxene,Fe-Ti oxides,plagioclase,amphibole,apatite and sulfides(pyrite and chalcopyrite).The Fe-Ti oxides mainly consist of magnetite-titanomagnetite and ilmenite,which occurred as disseminated,intergrowth,lamellae(trellis and sandwich textures)and *** in the gabbroic rocks is from the near end-member of Fe_(3)O_(4)(2))to titanomagnetite containing up to 8 wt.%TiO_(2)(about3.73 wt.%to 26.84 wt.%Ulvospinel(X_(Usp))).Magnetite in pyroxenite rocks is characterized with TiO_(2)range from 0.46 wt.%to 3.14 wt.%(X_(Usp)varied from 1.76 wt.%to 10.46 wt.%).The abundances of V_(2)O_(3)range from 0.03 wt.%to 1.29 wt.%and 0.24 wt.%to 1.00 wt.%for gabbro and pyroxenite,respectively.X_(Usp)contents of magnetite show insignificant correlations with Al_(2)O_(3)and *** average XIlmin the ilmenite of gabbro is 92%,whereas it is 90.37%in the pyroxenite *** MgO and V_(2)O_(3)contents show a slightly positive correlation with TiO_(2)in *** composition of clinopyroxenes in gabbro and pyroxenite rocks fall in the diopside to augite field with Mg#ranging from 67 to 98 and 74 to 96,*** both rock types,amphiboles are mainly pargasite and rarely *** in pyroxenite rocks is clustered in the labradorite to andesine fields with a compositional ranges of An46-69and in gabboic rocks fall in two fields with compositional ranges of albite with An0.65-5.95and labradorite with ***δ34S isotopic values cover a limited range from+3.15‰to+4.10‰V-CDT consistent with magmatic ***-Ti mineralization is formed in two stages,minor inclusions of Fe-Ti oxide minerals in the pyroxene and plagioclase crystallized in the early magmatic stage,whereas interstitial oxide

关键词： mafic-ultramafic intrusion Fe-Ti oxides gravitational settling mineral chemistry Bafq mining district Central Iran mineral deposits

CuCrW(Al2O3) nanocomposite: mechanical alloying, microstructure, and tribological properties

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International Journal of Minerals,Metallurgy and Materials 2017年第11期24卷 1321-1334页

作者： Mohammad Baghani Mahmood Aliofkhazraei Department of Materials science Faculty of Engineering Tarbiat Modares University Tehran Iran P.O. Box: 14115-143

The effect of alumina nanoparticle addition on the microstructure and tribological properties of a CuCrW alloy was investigated in this work. Mechanical alloying was carried out in a satellite ball mill. The tribological properties of the samples were evaluated using pin-on-disk wear tests with different pins(alumina, tungsten carbide, and steel pins). The results indicated that the tungsten carbide pin had a lower coefficient of friction than the alumina and steel pins because of its high hardness and low surface roughness. In addition, when the sliding rate was decreased, the weight-loss rate increased. The existence of alumina nanoparticles in the nanocomposite led to a lower weight-loss rate and to a change in the wear mechanism from adhesive to abrasive.

关键词： wear mechanicalalloying nanocomposite tribologicalproperties metalmatrix

Supercontinent tectonics and biogeochemical cycle:A matter of 'life and death'

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Geoscience Frontiers 2010年第1期1卷 21-30页

作者： M.Santosh Division of Interdisciplinary science Faculty of ScienceKochi UniversityKochi 780-8520Japan

The formation and disruption of supercontinents have significantly impacted mantle dynamics, solid earth processes, surface environments and the biogeochemical cycle. In the early history of the Earth, the collision of parallel intra-oceanic arcs was an important process in building embryonic continents. Superdownwelling along Y-shaped triple junctions might have been one of the important processes that aided in the rapid assembly of continental fragments into closely packed supercontinents. Various models have been proposed for the fragmentation of supercontinents including thermal blanket and superplume hypotheses. The reassembly of supercontinents after breakup and the ocean closure occurs through ＂introversion＂, ＂extroversion＂ or a combination of both, and is characterized by either Pacific-type or Atlantic-type ocean closure. The breakup of supercontinents and development of hydro- thermal system in rifts with granitic basement create anomalous chemical environments enriched in nutri- ents, which serve as the primary building blocks of the skeleton and bone of early modern life forms. A typical example is the rifting of the Rodinia supercontinent, which opened up an N--S oriented sea way along which nutrient enriched upwelling brought about a habitable geochemical environment. The assembly of supercontinents also had significant impact on life evolution. The role played by the Cambrian Gondwana assembly has been emphasized in many models, including the formation of ＇Trans- gondwana Mountains＇ that might have provided an effective source of rich nutrients to the equatorial waters, thus aiding the rapid increase in biodiversity. The planet has witnessed several mass extinction events during its history, mostly connected with major climatic fluctuations including global cooling and warming events, major glaciations, fluctuations in sea level, global anoxia, volcanic eruptions, asteroid impacts and gamma radiation. Some recent models speculate a relationship betwee

关键词： Supercontinents Mantle dynamics Superplume Life evolution Extinction Cambrian explosion

Preparation and Characterization of Component Materials for Intermediate Temperature Solid Oxide Fuel Cell by Glycine-Nitrate Process

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Journal of Rare Earths 2006年第Z2期24卷 98-103页

作者：刘荣辉杜青山马文会王华杨斌戴永年马学菊 faculty of Materials and Metallurgical Engineering Kunming University of Science and Technology National Engineering Laboratory of Vacuum Metallurgy Kunming 650093China

La1-xSrxGa1-y MgyO3-δ(LSGM) electrolyte, La1-xSrxCr1-y MnyO3-δ( LSCM ) anode and La1-xSrxFe1-y MnyO3-aaaaaaa(LSFM) cathode materials were all synthesized by glycine-nitrate process (GNP). The microstructure and characteristics of LSGM, LSCM and LSFM were tested via X-ray diffraction(XRD), scanning electron microcopy (SEM), A C impedance and four-probe direct current techniques. XRD shows that pure perovskite phase LSGM electrolyte and electrode (LSCM anode and LSFM cathode) materials were prepared after being sintered at 1400℃for 20 h and at 1000℃for 5 h, respectively. The max conductivities of LSGM (ionic conductivity), LSCM (total conductivity) and LSFM (total conductivity) materials are 0.02, 10, 16 S·cm-1 in the air below 850℃, respectively. The conductivity of LSCM becomes smaller when the atmosphere changes from air to pure hydrogen at the same temperature and it decreases with the temperature like metal. The porous and LSGM-based LSCM anode and LSFM cathode films were prepared by screen printing method, and the sintering temperatures for them were 1300 and 1250℃, respectively. LSGM and electrode (LSCM and LSFM) materials have good thermal and chemical compatibility.

关键词： intermediate temperature solid oxide fuel cell glycine-nitrate process properties of materials rare earths

Epidemiology and molecular genotyping of echinostome metacercariae in Filopaludina snails in Lamphun Province,Thailand

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Asian Pacific Journal of Tropical Medicine 2014年第1期7卷 26-29页

作者： Waraporn Noikong Chalobol Wongsawad Applied Parasitology Research Laboratory Department of Biology Faculty of ScienceChiang Mai University Applied Biology Program Faculty of Science and TechnologyPibulsongkram Rajabhat University Applied Technology in Biodiversity Research Unit Institute of Science and TechnologyChiang Mai University

Objective:To analyze the prevalence of echinostome metacercariae in Filopaludina dorliaris(***)and Filopaludina martensi martensi(*** martensi)and genotype variation of echinostome metacercariae by using random amplified polymorphic DNA(RAPD)***:Filopaludina *** were collected from eight localities of Lamphun Province,Northern Thailand and examined for echinostome ***-PCR was used lo analyze genotype variation of echinostome ***:A total of 3 226 *** and *** martensi snails were collected from eight *** overall prevalences of echinostome metacercariae in *** and *** martensi were 40.89%and 36.27%,while the intensity of infection was 20.37 and 12.04,*** dendrogram constructed base on RAPD profiles,4 well supported domains were generated;(i)group of metacercariae from Ban Hong,Mae Ta,Meaung,Pa Sang,Toong Hua Chang,and Weang Nong that were clustered in the group of ***,(ii)Ban Thi,(iii)Lee,and(iv)3 adults of an out ***:This research demonstrated RAPD profiling has been a useful tool to detect DNA polymorphisms to determine genetic relationship between echinostome metacercariae in Lamphun Province,Northern Thailand.

关键词： Echinostoma sp. Filopaludina sp.snails RAPD-PCR Epidemiology Metacercariae