Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: April 2024
Authors: Shridhar N. Matad, G.M. Shweta, L.R. Naik, D.M. Chetan, Rangappa B. Pujar, Sahebagouda Jambaladinni
The obtained powder itself shows the expected crystal structure.
The membrane structure of bacteria is most conserved among numerous species.
Mutations that lead to entire changes of the membrane structures of bacteria are unstable.
D Rieke, Magnetic properties of nanostructured materials, Chemistry of materials 8, no. 8 (1996) 1770-1783
Rex, Glucan synthase inhibitors as antifungal agents, Advances in protein chemistry 56 (2001) 423-475
Online since: November 2012
Authors: J.M. Cadogan, Arthur Mar, Pierric Lemoine, Brianna R. Slater, Maxim Avdeev
Avdeev3 1Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada 2Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada 3Bragg Institute, ANSTO, PMB 1, Menai, NSW 2234, Australia acadogan@physics.umanitoba.ca, bplemoine@physics.umanitoba.ca Keywords: rare-earth intermetallics, hexagonal perovskite-type structure, neutron diffraction, magnetic structure.
At 20 K, the magnetic structure is collinear along the c axis with a Cr magnetic moment of 1.24(4) μB.
A detailed description of this crystal structure can be found in reference [3].
At 20 K, the magnetic structure is collinear along the c axis with a Cr magnetic moment of 1.24(4) mB.
Morozkin, Crystal structure and the magnetic properties of CeTiGe3, Solid State Commun. 135 (2005) 444-448
Online since: June 2020
Authors: A.S. Lyadov, V.V. Kurilkin, A.G. Cherednichenko, J.M. Serov, T.F. Sheshko, Ekaterina Borisovna Markova
Sheshko1 1RUDN University (Peoples' Friendship University of Russia), Moscow, 117198 Russia 2Frumkin Institute of Physical Chemistry and Electrochemistry RAS 31, Leninskiy prospect, 119071, Moscow, Russia 3A.V.
The structure of the catalyst is stable under the conditions of preferential C3H8 reduction.
Note that rare-earth vanadates have zircon-like structures [10], while rare-earth vanadites have perovskite-like structures [9].
On the GdVO4 catalyst, which has a zirconium-like structure, the process of propane dehydrogenation prevails Figure 4.
-Min Nam Journal of Solid State Chemistry, 2019 V. 270 295 [2] N.
Online since: November 2014
Authors: Yu Zhong Guo, Fei Luo, Lin Zhang, Xing Shuai Zhang
LiNi0.4Co0.2Mn0.4O2 takes the layered structure of a-NaFeO2 (R3m) as like all other LiNixCo1−2xMnxO2 and keeps its structure invariant during charge and discharge cycle routine.
When the I(003)/I(104) ratio >1.2, the materials trends to a well- layered structure with small cation mixing.
The smaller ionic radius Ni3+ of 0.056nm than 0.069nm of Ni2+ accounts for the shrinkage in lattice structure on delithiating.
Solid State Chemistry, 2007, 180: 1045-1050
Journal of Fluorine Chemistry, 2007, 128: 139-143
Online since: July 2011
Authors: Jian Qin Ma
This acid water slowly dissolves concrete and corrodes metal, so it can also damage structures along their roads.
During tunnel operation, dewatering will not fully cease and some groundwater should be drained behind the tunnel structures.
For example, even in a high permeability area, such as a karst region, significant differences were found in water chemistry among sample sites [11].
Another factor may be the seasonal changes in water chemistry interact with speleogensis in the cave.
Scuri, Sulfide ground-water chemistry in the Frasassi Caves, Italy.
Online since: December 2012
Authors: Li Xu
At present, the body frame of current domestic bus is space rigid frame structure welded with rectangular and heteromorphic steel tubes groups, with spatial relationships very complex, cross-section forms multitudinous in reality, space beam element model is the preferred computing unit.
To calculate the natural frequencies and mode of vibration under the undamped structure, further deduction can obtain the frequency equation as follows: (2) After solving this equation, the structural eigenvalues ​​and eigenvectors of n can be obtained corresponding to the structure of the frequencies and mode of vibration.
solution and result sevaluation[3] ANSYS provides 7 kinds of solution algorithm for modal analysis [4][5], three kinds of which are solutions for special problems similar to fluid-structure interference, bearing vibration.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)
Online since: January 2013
Authors: Jian Zhang Li, Wei Hu, Shen Xin Li
Hydrolysis of PNPP Catalyzed by the dodecyliminodiacetate nickel(II) complexes Shen-xin Lia , Wei Hub, Jian-zhang Lic School of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zi gong, Sichuan, 643000, P.
Introduction In recent years, simulation enzyme is always the hot topics in the study of scholars, because the natural enzymes is complex, expensive and of unstable structures.[1] With complex and more stable chemical structure, these mimetic enzymes have similar catalytic function to natural enzymes.
Many kinds of transition metal complexes catalyzing PNPP hydrolysis have been reported.[9-12] Complex models, being widely inquired into, as hydrolyase for the catalytic hydrolysis of carboxylic acid esters, indicated that the structure of ligand of complex plays a significant role in designing the mimetic model.[13-15]In our previous research[16-18], we have studied the effect of different characteristic substituent in crown molecule on the catalytic activity of crown ether.
NiL Figure 1 Structure of the complexes Kinetic studies The apparent first order rate constants (kobsd) of PNPP hydrolysis were obtained on the basis of the initial rate method, according to the equations: (rate)0 = -(dA/dt)0/ε = kobsd[NiL]0, where (rate)0 is the initial rate of PNPP hydrolysis, [NiL]0 is the initial concentration of the complex.
Coordination Chemistry Reviews Vol. 173(1998),p.133 [2].Li, J.
Online since: December 2007
Authors: Yann Cheng Chen, Sheng Lung Kuo, Chia Hao Wong, Shih Tsung Ke, Ming Der Ger, Jeou Long Lee
Finally, the structure of the electrodeposition layer was analyzed by XRD with 5°/min scan rate and scanning angle from 0° to 100° (2 θ).
Thus, a fine and uniform crystal structure was obtained.
The micro-hardness of nickel deposit is influenced directly by the crystal structure of nickel layer.
Increasing the CTAB concentration, nickel deposit would therefore reduce the grain size of structure leading to improvement of the micro-hardness.
Materials Chemistry, Vol. 13 No. 12 (2003), p. 3053 [9] Y.Y.
Online since: November 2016
Authors: Marcelo Henrique Prado da Silva, Dindo Q. Mijares, Rubens Lincoln Santana Blazutti Marçal, José Brant de Campos, Daniel Navarro da Rocha, Leila Rosa de Oliveira Cruz, Paulo G. Coelho
Chemistry modification of implant surface with calcium phosphate coatings and nanostructures features may trigger proteins and enhance cell migration towards the bone-implant interface.
Rietveld method confirmed the presence of brushite, as a single phase, and refinement results showed the best statistical indicators (RWP and GOF) for monoclinic structure.
Literature has been reported that the HA monoclinic structure is the most stable phase below 200ºC and a better fitting of monoclinic, than hexagonal structure, was verified in this study by Rietveld refinement method.
Albrektsson, Classification of osseointegrated implant surfaces: materials, chemistry and topography, Trends Biotechnol, 28 (2010) 198-206
Yamamuro, Solutions able to reproduce in vivo surface-structure changes in bioactive glass-ceramic A-W, J Biomed Mater Res, 24 (1990) 721-734
Online since: December 2012
Authors: Xiao Yan Zhang, Gui Fang Sun, Huan Huan Chen, Xi Wei Qi, Teng Zhang
Introduction LaAlO3 with perovskite-type structure has good dielectric characteristics: high relative permittivity, high quality factor, and a small temperature coefficient of resonant frequency[1].
To overcome the drawbacks of solid state method, various wet chemistry routes including co-precipitation, sol–gel [3], molten salt[4] and organic metal precursor[5] were investigated.
Fuetal [6] prepared Sr/Mn-substituted LaAlO3 by sol-gel method, and found that single-phase perovskite structures of (La0.8Sr0.2)1-yAl1-xMnxO3-δ formed at 1300°C for 5h.
From this graph, we conclude that Bi partially replaces the position of La in the crystal structure, thus the lattice parameter varies regularly with the increase of Bi content.
Kuo, Thermochemical behavior of metallic citrate precursors for the production of pure LaAlO3, Journal of Physics and Chemistry of Solids. 70 (2009) 218–223