检索结果-南通市图书馆

Leveraging ROTI map derived from Indon.s.an Gn.s.receiver network for advancing study of Equatorial Plasma Bubble in.s.utheast/East Asia

在线全文

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2025年第1期9卷 101-116页

作者： Prayitno Abadi Ihsan n.Muafiry Teguh n.Pratama Angga Y.Putra suraina Gatot H.Pramono sidik T.Wibowo Febrylian F.Chabibi Umar A.Ahmad Wildan P.Tresna Asnawi Research Center for Climate and Atmosphere Indonesian National Research and Innovation Agency(BRIN)BandungIndonesia school of Electrical Engineering Telkom UniversityBandungIndonesia Directorate of Laboratory Management Facilities and science and Technology Park Indonesian National Research and Innovation Agency(BRIN)PontianakIndonesia Geophysics Laboratory Master Program in PhysicsUniversitas Gadjah Mada(UGM)YogyakartaIndonesia Research Center for space Indonesian National Research and Innovation Agency(BRIN)BandungIndonesia Indon.s.an Geospatial Information Agency(BIG) JakartaIndonesia Research Center for Photonics Indonesian National Research and Innovation Agency(BRIN)Tangerang SelatanIndonesia Department of Earth and Planetary sciences Hokkaido UniversitySapporoJapan

This paper highlights the crucial role of Indon.s.a’s Gn.s.receiver network in advancing Equatorial Plasma Bubble(EPB)studies in.s.utheast and East Asia,as ion.s.heric irregularities within EPB can disrupt Gn.s.signals and degrade positioning *** by the Indon.s.an Geospatial Information Agency(BIG),the Indon.s.a Continuously Operating Reference station(Ina-CORs)network comprises over 300 Gn.s.receivers spanning equatorial to southern low-latitude ***-CORs is uniquely situated to monitor EPB generation,zonal drift,and dissipation across southeast *** provide a practical tool for EPB research,by sharing two-dimensional rate of Total Electron Content(TEC)change index(ROTI)derived from this *** generate ROTI maps with a 10-minute resolution,and samples from May 2024 are publicly available for further scientific *** preliminary findin.s.from the ROTI maps of Ina-CORs are ***,the Ina-CORs ROTI maps reveal that the irregularities within a broader EPB structure persist longer,increasing the potential for these irregularities to migrate farther ***,we demonstrate that combined ROTI maps from Ina-CORs and Gn.s.receivers in East Asia and Australia can be used to monitor the development of ion.s.heric irregularities in.s.utheast and East *** have demonstrated the combined ROTI maps to capture the development of ion.s.heric irregularities in the southeast/East Asian.s.ctor during the G5 Geomagnetic storm on May 11,*** observed simultaneous ion.s.heric irregularities in Japan and Australia,respectively propagating northwestward and southwestward,before midnight,whereas southeast Asia’s equatorial and low-latitude regions exhibited irregularities *** sharing ROTI maps from Indon.s.a and integrating them with regional Gn.s.networks,researchers can conduct comprehensive EPB studies,enhancing the understanding of EPB behavior across southeast and East Asia and contributing significantly to ion.s.he

关键词： Equatorial Plasma Bubble(EPB) Gn.s.receivers’network Indon.s.a Continuously Operating Reference station(Ina-CORs) ion.s.heric map Rate of TEC change index(ROTI)map

synthetic polymers:A review of applications in drilling fluids

在线全文

学校读者我要写书评

暂无评论

Petroleum science 2024年第1期21卷 475-518页

作者： shadfar Davoodi Mohammed Al-shargabi David A.wood Valeriy s.Rukavishnikov Konstantin M.Minaev school of Earth sciences&Engineering Tomsk Polytechnic UniversityLenin AvenueTomskRussia DWA Energy Limited LincolnUnited Kingdom

With the growth of deep drilling and the complexity of the well profile,the requiremen.s.for a more complete and efficient exploitation of productive formations increase,which increases the risk of various ***,reagen.s.based on modified natural polymers(which are naturally occurring compoun.s.and synthetic polymers(sPs)which are polymeric compoun.s.created industrially,are widely used to prevent emerging complications in the drilling ***,compared to modified natural polymers,sPs form a family of high-molecular-weight compoun.s.that are fully synthesized by undergoing chemical polymerization *** provide substantial flexibility in their ***,their size and chemical composition can be adjusted to provide properties for nearly all the functional objectives of drilling *** can be classified based on chemical ingredien.s.type of reaction,and their responses to ***,some of sPs,due to their structural characteristics,have a high cost,a poor temperature and salt resistance in drilling fluids,and degradation begins when the temperature reaches 130℃.These drawbacks prevent sP use in.s.me medium and deep ***,this review addresses the historical development,the characteristics,manufacturing methods,classification,and the applications of sPs in drilling *** contributions of sPs as additives to drilling fluids to enhance rheology,filtrate generation,carrying of cuttin.s.fluid lubricity,and clay/shale stability are explained in *** mechan.s.s,impacts,and advances achieved when.s.s are added to drilling fluids are also *** typical challenges encountered by sPs when deployed in drilling fluids and their advantages and drawbacks are also *** issues also impact the applications of sPs in drilling ***,the cost of the most relevant sPs,and the monomers used in their synthesis,are *** impacts of sPs when deployed in drilling fluids,and t

关键词： synthetic versus natural polymers nanopolymers Drilling fluid additives Lubricity Clay swelling Hole cleaning

The Complementary Effect of Halal Principles and sustainable Concept

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental science and Engineering 2011年第5期5卷 652-659页

作者： M. Zainalabidin R. Golnaz n.s. Mad Department of Agribusin.s. and Information.s.stems Faculty of Agriculture Universiti Putra Malaysia Serdang Selangor 43400Malaysia

This paper focuses on Malaysian Muslims perspective towards food safety, environment and animal welfare aspects of Halal principles in manufactured foods. Cross-sectional consumer data were collected through a survey. One thousand seven hundreds and sixteen （1,716） Muslim responden.s.all over Peninsular Malaysia were interviewed randomly via structured questionnaire in 2009 to address the issues on Muslim consumers＇ understanding and perspective of Halal principles and its relation to food safety, environmentally friendly and animal welfare. Descriptive and Chi-square analysis were used to analyze the data collected. The findin.s.revealed that majority of respondent relate Halal principles to food safety because Halal principle not only about slaughtering of animals but must also be Tyoibah or clean. The consumers from East of Peninsular Malaysia, with higher level religiosity and education level are more likely to understand the true meaning of Halal principles, Measuring the extent of consumers＇ understanding of Halal principles is vital, since Halal does not only focus on the Islamic processing but also sustainable concept of hygiene, sanitation and safety.

关键词： Perspective food safety Halal principles manufactured food Muslim.

The influence of Landau quantization on the propagation of solitary structures in collisional plasmas

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8期72卷 148-153页

作者： s Hussain n Akhtar Theoretical Physics Division(TPD) PINSTECHPO NiloreIslamabad 44000Pakistan

In this work, we study damped ion acoustic solitary wave structures in magnetized dense plasmas. The collisional effects of ions with electrons and neutrals are considered. The trapping effects of electrons and Landau quantization are included in the plasma model under consideration. We assume that magnetic field is quantized such that the condition■ is satisfied. We have derived the damped Korteweg–de Vries(dKdV) equation by using small amplitude reductive perturbation technique. The time-dependent analytical and numerical solutions of the dKdV equation are presented. For numerical solutions we apply a two level finite difference scheme with the help of the Runge Kutta method. The effects of variations of different plasma parameters on the propagation characteristics of damped solitary structures in the presence of collisions are discussed.

关键词： soliton collisional plasmas finite difference method reductive perturbation method

nonlinear parametric interactions in ion-implanted semiconductor plasmas having strain-dependent dielectric constants

在线全文

学校读者我要写书评

暂无评论

Chin.s. Physics B 2017年第1期26卷 304-309页

作者： n Yadav s Ghosh P s Malviya school of studies in Physics Vikram University Ujjain 465010 India Department of Physics Govt. J.N.S. Post Graduate College Shujalpur 465333 India

We report nonlinear parametric interactions using a hydrodynamic model of ion-implanted semiconductor plasmas having strain-dependent dielectric constan.s.sDDC）. High-dielectric-constant materials are technologically important because of their nonlinear properties. We find that the third-order susceptibility varies in the range 10^-14--10^-12m^2·V^-2 for ion-implanted semiconductor plasmas, which is in good agreement with previous results. It is found that the presence of sDDC in ion-implanted semiconductor plasma modifies the characteristic properties of the material.

关键词： nonlinear parametric interactions ion-implanted semiconductor plasmas strain-dependent dielectric constant

Effect of corrosion inhibiting compoun.s.on the corrosion behaviour of pure magn.s.um and the magn.s.um alloys EV31A, WE43B and ZE41A

在线全文

学校读者我要写书评

暂无评论

Journal of Magn.s.um and Alloys 2021年第2期9卷 432-455页

作者： Akif soltan Matthew s.Dargusch Zhiming shi Fiona Jon.s.Barry wood Darren Gerrard Andrej Atrens school of Mechanical and Mining Engineering The University of QueenslandBrisbaneQld 4072Australia UQ Materials Performance The University of QueenslandBrisbaneQld 4072Australia Centre for Microscopy and Microanalysis The University of QueenslandBrisbaneQld 4072Australia Defence Materials Technology Centre DMTC LimitedLevel 224 Wakefield StreetHawthornVic 3122Australia Defence science and Technology Group 506 Lorimer StreetFishermans BendVic 3207Australia

This paper studied corrosion of pure Mg and the Mg alloys EV31A,WE43B,ZE41A,coated with commercial corrosion inhibiting compoun.s.CICs)(LPs 3,LPs2,AMLGuard,Ardrox 3961)immersed in 3.5 wt%(0.6M)na Cl solution.s.turated with Mg(OH)_(2).All four CICs reduced corrosion *** 3 resulted in zero corrosion rates and 100%inhibition in most *** 2 and AMLGuard had comparable inhibition efficiencies,whilst Ardrox 3961 had the lowest inhibition *** in corrosion rates was tentatively attributed to barrier films formed by chemical adsorption for LPs 3 and AMLGuard,and by physical adsorption for LPs2 and Ardrox 3961.

关键词： Magn.s.um Weight loss Hydrogen evolution XPs FTIR Corrosion inhibition

Karite-diamond fossil:A new type of natural diamond

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2020年第4期11卷 1163-1174页

作者： T.G.shumilova V.V.Ulyashev V.A.Kazakov s.I.Isaenko s.A.svetov s.Yu.Chazhengina n.s.Kovalchuk Institute of Geology of Komi scientific Centre of the Ural Branch of the Russian Academy of sciences Pervomayskaya St.54Syktyvkar167982Russia Hawaii Institute of Geophysics and Planetology University of Hawaii at Manoa1680 East-West RoadHonoluluHI96822USA ssC FsUE Keldysh Research Centre Onezhskaya8125438MoscowRussia Institute of Geology of the Karelian Research Centre of the Russian Academy of sciences Petrozavodsk11 Pushkinskaya StreetRussia

Impact diamond is one of perspective natural type of superhard carbon materials,forming huge resources sometimes,such as Popigai impact structure counting the largest diamond storage on the *** present,there are two known types of impact diamon.s.after-graphitic and after-coal varieties formed from different carbon *** we present for the first time a new impact diamond type-diamond fossils,named by "karite",formed about 70 Ma from unmetamorphosed organics in the giant Kara impact crater(Pay-Khoy,Russia).A full complex of the diamond fossil characteristics is described proving its nature and phase *** is presented with supernanocrystalline diamond aggregates,nicely preserves tiny cell morphology and relict features of lignin and *** diamond fossils are spread widely through the Kara impactites,point to possible wider distribution of impact diamon.s.within large impact occurrences around the world,can be used for impact modeling,astrobiological and material studies.

关键词： Astroblemes Impact diamonds Fossils Diamond paramorphs Astrobiology

在线全文

学校读者我要写书评

暂无评论

试谈哈萨克语量词的构成方式

语言与翻译 2004年第2期 45-47页

作者： n.s.努尔哈毕新疆维吾尔自治区民族语言文字工作委员会研究室新疆乌鲁木齐830001

本文将哈萨克语量词从其附加成分构成方式和复合构成方式等方面用大量事例进行了探讨。

关键词：哈萨克语量词构成方式

Dynamic and electrical responses of a curved sandwich beam with glass reinforced laminate layers and a pliable core in the presence of a piezoelectric layer under low-velocity impact

在线全文

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2024年第1期45卷 155-178页

作者： n.s.AHVEIsI s.FELI Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

The dynamic responses and generated voltage in a curved sandwich beam with glass reinforced laminate(GRL)layers and a pliable core in the presence of a piezoelectric layer under low-velocity impact(LVI)are *** current study aims to carry out a dynamic analysis on the sandwich beam when the impactor hits the top face sheet with an initial *** the layer analysis,the high-order shear deformation theory(HsDT)and Frostig's second model for the displacement fields of the core layer are *** classical non-adhesive elastic contact theory and Hunter's principle are used to calculate the dynamic responses in terms of *** order to validate the analytical method,the outcomes of the current investigation are compared with those gained by the experimental tests carried out by other researchers for a rectangular composite plate subject to the *** element(FE)simulations are conducted by means of the ABAQUs *** effects of the parameters such as foam modulus,layer material,fiber angle,impactor mass,and its velocity on the generated voltage are reviewed.

关键词： analytical model piezoelectric layer curved sandwich beam glass reinforced laminate(GRL) pliable core low-velocity impact(LVI) classical non-adhesive elastic contact theory