نتایج جستجو برای: sub and sub
تعداد نتایج: 16863855 فیلتر نتایج به سال:
writing as a productive skill requires practice in the basic sub-skills of vocabulary and grammar. in fact, grammar has been viewed as the core of programs in writing classes to help the students put the elements of sentence together and combine sentences of specific lengths to come up with an error-free work of art. conceptualizing l2 writing in this way introduces writing as a product and enc...
Psychophysical two-tone suppression and the growth of the (2f• --f2} and • --f•) distortion products were measured in four normal-hearing young adults using a forward-masking paradigm. The stimulus parameters investigated were: (1)f• = 750 and 3000 Hz; (2)f2/f• = 1.1 l, 1.26, and 1.41; (3) L• = 50, 65, 80, and 90 dB SPL; and (4) L2 -L• varied from -20 to + 20 dB in 10-dB increments. It appears ...
Crystallographic analyses of x-ray and neutron diffraction data have provided a definitive structural representation of fHRh[P(O-i-C3H7)3J2j2 and IHRhIP(OCH3)31213. These polynuclear hydrides are generated from square planar H2RhIP(OR)3J2 units by edge (hydrogen atom) sharing and by vertex (hydrogen atom) sharing to form the dimeric and trimeric structures, respectively. The square-planar units...
در این مقاله گذار فاز مغناطیسی و ناهمسانگردی مغناطوالاستیکی یک نمونه بس بلور nd14dy2fe78b6 به کمک اندازه گیری پذیرفتاری مغناطیسی متناوب و مغناطوتنگش گزارش شده است. این ترکیب به روش ریخته گری از مذاب تهیه شد. تصاویر sem و طیف xrd آن نشان داد که نمونه بس بلور و غیر تک فاز بوده و عمده ترین ترکیب موجود در ان فاز 1- 14- 2 است. اندازه گیری پذیرفتاری مغناطیسی متناوب نشان داد که نمونه در دمایی در حدود ...
C 2012 American Chemical Society Exotic Topological Insulator States and Topological Phase Transitions in Sb2Se3 Bi2Se3 Heterostructures Qianfan Zhang, Zhiyong Zhang, Zhiyong Zhu, Udo Schwingenschlögl, and Yi Cui* Department of Material Sciences and Engineering and Stanford Nanofabrication Facility, Stanford University, Stanford, California 94305, United States, PSE Division, KAUST, Thuwal 2395...
Results of magnetization and high-field electron spin resonance (ESR) studies of the new spin-1 Haldane-chain material [Ni(C2H8N2)2NO2] (BF4) (NENB) are reported. A definite signature of the Haldane state in NENB was obtained. From the analysis of the frequency–field dependence of magnetic excitations in NENB, the spin-Hamiltonian parameters were calculated, yielding 1/kB = 17.4 K, g‖ = 2.14, D...
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