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Online since: June 2015
Authors: Vladimír Suchánek, Matěj Slováček
Introduction It is well known that the omnidirectional scattered steel reinforcement captures the effects of local tension between the grains of coarse aggregate.
For technical reasons, the number of cycles was set 50.
Online since: May 2015
Authors: Guo Feng, Qian Wu, Wei Hui Jiang, Quan Zhang, Jian Min Liu, Li Feng Miao, Zhi Peng Shao
As a result, the C=O and C-O-C bonds corresponding to the bonds of butyl acetate indicates the occurrence of de-esterification non-hydrolytic sol-gel process, which can be described as the following formula: From the equation above, it can be seen that because the coordination number of Ti in Ti(OR)4 is 6 and its valence bond  is 4, CH3COO- in Ba(CH3COO)2 is easy to coordinate with Ti, then the –OR in Ti(OR)4 nucleophile attacks C2 in Ba(C1H3C2OO)2 at 110 °C, and then the de-esterification reaction occurs, forming Ba-O-Ti bond.
Zeng, Nonhydrolytic sol–gel synthesis and dielectric properties of ultrafine-grained and homogenized Ba0.70Sr0.30TiO3, J.
Online since: April 2008
Authors: Wen Yan Wang, Jing Pei Xie, Ji Wen Li, Ai Qin Wang, Hua Yan, Hui Min Zhang, Luo Li Li
So we add the number of cold iron in order to improve its shock cooling effect[7].
Simulation of casting solidification and its grain structure prediction using FEM [J].
Online since: October 2017
Authors: Mohamed Kamari Halimah, Farah Diana Muhammad, M.F. Faznny, M.N. Ami Hazlin, Iskandar Shahrim Mustafa
The nanomaterials exposed unique and interesting properties which usually contributed by two major factors which are finite grain size effects and interface effects.
The addition of Dy3+ NPs inside the glass matrix creates more number of non-bridging oxygens (NBOs) which lead to the decreasing value of the band gap [13].
Online since: August 2009
Authors: Liang Tang Zhang, Sun Tao Wu, Jie Song, Quan Feng Dong
The grains of V2O5 show sheet morphology with plane size ranging from 0.1 to 0.3µm.
The voltage range was 0-3V, the charge-discharge current is 5nA. 0 20 40 60 80 100 0 2 4 6 8 10 12 Capacity /µµµµAhcm-2µµµµm-1 Cycle number V: 3-0V I: 5nA Fig. 5.
Online since: May 2004
Authors: Murt Redington, Stuart Hampshire, Wynette Redington
Oxynitride glasses, which occur as grain-boundary phases in silicon nitride based ceramics, are of interest in their own right also which has prompted a number of investigations into Nd-SiAlON glasses [4-9].
Online since: October 2010
Authors: Jin Sheng Du, Pui Lam Ng, Jia Jian Chen, Wilson Wai Sin Fung
They could enhance the built environment in a number of ways.
Types of green roof and their characteristics Characteristics Extensive Green Roof Semi-intensive Green Roof Intensive Green Roof Soil characteristics - Depth - Grain size - Water retention capacity - Nutrient reserves 150 mm or less Coarse Low Low 150 to 200 mm Medium Medium Medium 200 to 2000 mm Fine High High Fully saturated weight Light (80-150 kg/m2) Medium (150-300 kg/m2) Heavy (300-1000 kg/m2) Plant species Moss-sedum-herbs and grasses Grass-herbs and shrubs Lawn or perennials, shrubs and trees Accessibility by occupants Mostly inaccessible Partially accessible Accessible Cost Low capital and maintenance costs Medium capital and maintenance costs High capital and maintenance costs Structure and Materials of Green Roof The basic components in common of green roofs of any type are illustrated in Fig. 1 and are explicated below.
Amongst various places visited by the delegation, a number of buildings in Tokyo showcased exemplars of green roofs.
Online since: June 2012
Authors: Fei Qiao, Zai Wang Dong, Yu Jun Liu, Yu Ting Zhao, Xi Tian
However, total power control at finer grain size is not described.
To reduce the number of partial product rows, the modified Booth algorithm has widely been adopted in binary multipliers.
The -2A and -A can be done by taking the one’s complement of the number and adding 1 to the least significant bit.
Assume multiplicand A for the modified Booth multiplier has large dynamic range and A is represented as n-bit 2’s complement number (Eq. 1).
The bits number and transition activity are dynamically decreased according to the actual signal magnitude.
Online since: May 2012
Authors: Qiang Li
The fabric of ore are mainly idiomorphic hypidiomorphic - fine-grained, cryptocrystalline - fine grain, allotromorphic microgranular structure, blocky, banded, frame-slab structure.
Anomaly evaluation Evaluation index A large number of research in domestic and foreign shows that the parameter of gold deposit primary halo zoning is important index for improve accuracy and reliability of concealed prediction.
Online since: February 2012
Authors: Dong Sheng Chen, Ying Jin Gan, Xiao Hong Yuan
Fig.3 Lotus monofilament fiber in longitudinal revolving In Fig.3, in lengthways, the mature lotus fiber, with ribbon spiral revolving structure and clearly subtle cross grain, associates side by side by several monofilament fiber.
Seen from the surface morphology of lotus fiber observed by SEM, ribbon spiral revolving and revolving number in unite length are closely related to the variety, growing condition, harvest season, extraction place and extraction method.
Monofilament fiber in longitudinal tube of lotus stalk associates closely and shows spiral revolving structure with clearly fineness cross grain.
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