期刊文献+

二次检索

题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

年份

共找到5篇文章
< 1 >
每页显示 20 50 100
Shaped Insulating Refractory Products——Determination of Permanent Linear Change on Heating
1
《China's Refractories》 CAS 2005年第4期38-40,共3页
1 Scope This standard covers the definition, technical requirement, apparatus, specimen, test procedure, calculation and test report on permanent linear change of shaped insulating refractory products.
关键词 Determination of Permanent linear change on Heating Shaped Insulating Refractory Products length
下载PDF
Dense Shaped Refractory Products——Test Method of Linear Changes on Reheating
2
《China's Refractories》 CAS 2006年第2期36-38,共3页
This Standard specifies methods for the determination of the linear changes on reheating of a dense shaped refractory product.
关键词 TEST Test Method of linear changes on Reheating Dense Shaped Refractory Products
下载PDF
Effect of Si δ-Doping on the Linear and Nonlinear Optical Absorptions and Refractive Index Changes in InAlN/GaN Single Quantum Wells
3
作者 Shaffa Almansour Hassen Dakhlaoui Emane Algrafy 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第2期102-105,共4页
In the framework of effective mass approximation, we theoretically investigate the electronic structure of the Si δ-doped InAIN/GaN single quantum well by solving numerically the coupled equations Schrodinger-Poisson... In the framework of effective mass approximation, we theoretically investigate the electronic structure of the Si δ-doped InAIN/GaN single quantum well by solving numerically the coupled equations Schrodinger-Poisson self-consistently. The linear, nonlinear optical absorption coefficients and relative refractive index changes are calculated as functions of the doping concentration and its thickness. The obtained results show that the position and the amplitude of the linear and total optical absorption coefficients and the refractive index changes can be modified by varying the doping concentration and its thickness. In addition, it is found that the maximum of the optical absorption can be red-shifted or blue-shifted by varying the doping concentration. The obtained results are important for the design of various electronic components such as high-power FETs and infrared photonic devices. 展开更多
关键词 of is In GAN in Doping on the linear and Nonlinear Optical Absorptions and Refractive Index changes in InAlN/GaN Single Quantum Wells on
下载PDF
Effect of Microsilica Addition on Properties of CMA72 Bonded Al2O3-MgO Castables 被引量:2
4
作者 GAO Jianying ZHANG Ziyi +1 位作者 BRUNO Touzo CAO Biao 《China's Refractories》 CAS 2016年第2期1-6,共6页
CMA72 bonded Al2 O3 - MgO castable is promising for application of steel ladle wall, because of unique combination of thermo-mechanical properties, slag corro- sion resistance and cost benefit. In these castables, mi-... CMA72 bonded Al2 O3 - MgO castable is promising for application of steel ladle wall, because of unique combination of thermo-mechanical properties, slag corro- sion resistance and cost benefit. In these castables, mi- crosilica can be introduced to counterbalance the expan- sion generated by spinel formation. In this paper, the of microsilica dosage on properties of eastables was evaluated. Expansion, expressed by the permanent linear change (PLC), is highly dependent on the dosage of microsilica. Unexpected expansion occurs when the dos- age of microsilica is too low due to dominant effect of spinel and CA6 formation. Too high dosage results in sintering shrinkage, which is related to amount of liquid phase generated by microsilica addition. In addition, HMOR declines dramatically with increasing microsilica dosage. Considering the balance between expansion con- trol and hot property retention, 1.0 mass% of microsili- ca is recommended for the castable containing 4 mass% of magnesia. 展开更多
关键词 alumina - magnesia castable microsilicadosage permanent linear change CMA72
下载PDF
Growth Performance of Arsi, Borana, Harar and HF-Crossbred Bulls Finished under Similar Feeding Condition
5
作者 Ahmedin Abdurehman Musa Yesihak Yusuf Mummed +3 位作者 Mohammed Yusuf Kurtu Melese Temesgen Travis Gene O’Quinn Umer Seid Geletu 《Open Journal of Animal Sciences》 2022年第2期171-191,共21页
The study was conducted to evaluate the fattening performance of Arsi, Borana, Harar and Holstein Friesian crossbred bulls finished under a similar feeding condition at the beef farm in Haramaya University. The averag... The study was conducted to evaluate the fattening performance of Arsi, Borana, Harar and Holstein Friesian crossbred bulls finished under a similar feeding condition at the beef farm in Haramaya University. The average daily weight gain of the four breeds ranges from 0.49 to 0.71 kg. Feed conversion efficiency also ranges from 0.11 - 0.15. Simple linear regression models were used to explore the relationship between live body weight change and change in body condition score as well as seven linear body measurements for all age groups. An average change for a unite of body condition score was equivalent to 20.3, 20.61, 22.42 and 27.78 kg for Borana, Arsi, Harar and Holstein Friesian crossbred bulls respectively. Body condition score was significantly influenced by breeds. There was a significant breed by age interaction effect on the initial body condition score of the four breeds. There was a significant and positive strong association between change in body weight and body condition score. There was a significant and strong correlation between change in body weight and change in Total topline, neck length, heart girth, flank circumference and rump length having correlation coefficients ranges from 0.57 to 0.97. A higher net profit of 7380.47 ETB per head was recorded by Borana bulls followed by Harar bulls, Arsi and Holstein Friesian crossbred with net profit of 5406.86, 5193.29 and 3384.98 ETB per head respectively. Borana bulls are more superior in weight gain and net profit. Bodyweight change could be predicted based on body condition score change during the fattening period. 展开更多
关键词 Weight Gain Body Condition Score change in linear Body Measurement
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部