نتایج جستجو برای: sub h group

تعداد نتایج: 1624683  

Journal: :EPL 2021

We report the crystal growth and structural magnetic properties of quasi two-dimensional $S=1/2$ quantum magnet Cu[C$_6$H$_2$(COO)$_4$][H$_3$N-(CH$_2$)$_2$-NH$_3$]$\cdot$3H$_2$O. It is found to crystallize in a monoclinic structure with space group $C2/m$. The CuO$_4$ plaquettes are connected into framework $ab$-plane through anions [C$_6$H$_2$(COO)$_4$]$^{4-}$ (pyromellitic acid). [H$_3$N-(CH$...

A. Menendez-Buxadera A. Palacios-Espinosa, J.L. Espinoza-Villavicencio

A total of 245187 records of the first three lactations of 131126 Holstein cows in tropical conditions were used to estimate the genetic (co)variance components between age at calving and its respective milk productions. A multivariate analysis of six traits was performed. Heritability for age at calving (h2AC) and milk yield (h2MY) decrease from the ...

Journal: :Zeitschrift Fur Kristallographie-new Crystal Structures 2023

Abstract C 11 H 10 O 4 , monoclinic, Pn (no. 7), a = 4.8622(5) Å, b 6.7853(7) c 14.3349(17) β 96.556(3)°, V 469.84(9) Å 3 Z 2, R gt ( F ) 0.0512, wR ref 2 0.1249, T 273(2) K.

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 2018

MFI-type zeolite membranes (ZSM-5) were prepared on α-alumina tubular supports and tested for separation of H2/CO mixtures. The effect of pressure and temperature on H2 and CO flows and selectivity was investigated. The best results in this work were obtained with a ZSM-5 membrane prepared over a porous α-alumina tube seeded with zeolite nanocrystals synthesized with m...

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