نتایج جستجو برای: space structures

تعداد نتایج: 920029  

Journal: :SCIENTIA SINICA Physica, Mechanica & Astronomica 2017

Journal: :Social Networks 2021

This paper introduces a novel approach for modeling set of directed, binary networks in the context cognitive social structures (CSSs) data. We adopt relativist which no assumption is made about existence an underlying true network. More specifically, we rely on generalized linear model that incorporates bilinear structure to transitivity effects within networks, and hierarchical specification ...

Journal: :Physical Review B 2022

Dynamics of particle in a resonantly driven quantum well can be interpreted as that crystal-like structure, with the time playing role coordinate. By introducing an adiabatically varied phase driving protocol, we demonstrate realization Thouless pumping such crystalline structure. Next, extend analysis beyond single by considering one-dimensional optical lattice, thereby engineering 2D time-spa...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2004
abbas shockravi robabeh alizadeh hossein aghabozorg leyla hossein mohebbi saeed moradi koochi

microwave irradiation is used in the synthesis of four tricyclic chromanones 11-14. the chromanone 14 and 12 are selectively formed thermally and under microwave in the presence of polyphosphoric acid (ppa) from the same dicarboxylic acid 9, respectively. the crystal structures of the two diacids are also reported. the corresponding ortho and meta isomers of diacids crystallize in the space gro...

Journal: :تحقیقات دامپزشکی 0
دکتر غلامحسین شاهوردی دکتر احمد حسینی دکتر مجتبی رضا زاده دکتر سعید کاظمی آشتیانی

in order to study the development of knee joint in absence of movement; mouse limb buds were separated from 15 days old embryos and cultured in ham's f-io medium conditioned with 37°c and 5% co2 for 1 to 6 days. the medium was renewed every 24h during incubation. after 6 days, specimens were fixed by buin's fluid, embedded in paraffin wax, serially sectioned and stained with h&e.; the...

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