نتایج جستجو برای: umklapp process
تعداد نتایج: 1312539 فیلتر نتایج به سال:
an investigation into oral interaction in language classes: a conversation analytic point of view the aim of this thesis is to analyze the interaction between language teachers and students in english language institutes. this work is done in the context of yasuj city. learning another language, which is in most cases english, involves many variables. one of these variables is the linguistic...
abstract this research is about a longitudinal case study of english morpheme acquisition by a persian speaking child l2 learner of english (2 .9-3).the goal of this research has been discovery of the child ‘s ability in acquiring of english morphemes in a persian context while only one person (the child’ s father)has been talking to her.this child has also been exposed to english languag...
asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...
In 1937, Baber, Landau and Pomeranchuk postulated that collisions between electrons generates a contribution to the electric resistivity of metals with distinct T$^2$ temperature dependence. The amplitude this term is small in common metals, but dominant hosting either heavy carriers or low concentration them. link dependence size scattering phase space straightforward, not microscopic source d...
Monovalent nontransition metals are robust Fermi liquids. They defy superconductivity even at lowest temperatures (Li is a minor exception: [Formula: see text] mK). However, Thapa, Pandey, Ghosh and collaborators 8 have reported, from 2018, signals for transient unstable granular ambient in Ag nanoparticles embedded Au matrix. We develop theory, where competing superconducing, CDW SDW orders lo...
A recent work by Zhao et al. [1] reports the realization of a synthetic Kondo lattice in gate-tunable Moir\'e TMD bilayer system. The observation is supported plateau (or dip, depending on filling) temperature dependence resistivity $\rho(T)$ around $T^*\sim 40~$K, which interpreted as scale, and an apparent enhancement carrier mass extracted from low-temperature data, indicating emergence `hea...
It is known that the temperature-dependent thermal conductivity of conventional crystals follows classical 1/$T$ trend due to dominant umklapp phonon-phonon scattering at high enough temperatures. However, many crystalline metal-organic frameworks very low and shows a weak temperature dependence when all vibrational modes are occupied. By studying two frameworks, i.e., zeolitic imidazolate fram...
the present study is paid to the evaluation of the welfare program of the unemployment insurance in iran. the main purpose which was the main reason for performing this thesis, was the unemployment insurance plan’s challenges in iran such as financial problems of this plan, prolongation of the credit receipt for some insured people, unemployment slow exiting from the unemployment insurance fund...
به طور کلی در فرآیندهای مارکوف ارگودیک دو بعدی یافتن فرم بسته توزیع ایستا، تنها برای حالات خیلی خاص امکان پذیر است. با توجه به این مشکل و نیز با توجه به اهمیت توزیع ایستا، بررسی و مطالعه رفتار مجانبی توزیع ایستای این فرآیندها مورد توجه قرار گرفته است. زنجیر قدم زدن تصادفی دو بعدی که در برخی متون به آن، فرآیند qbd دو طرفه نیز می گویند، یکی از این فرآیندها است. یک فرآیند qbd زمان گسسته یک زنجیر م...
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