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: By considering the mechanical response of piles and the weakening effect of soil in front of piles, a calculation method was proposed for buckling analysis of bridge piles in slopes. Total potential energy equation of the pile-soil system was established, where buckling critical load and stability calculation length were derived by using energy method. Compared with model test results, the feasibility......
atoms in per unit volume of the liquid, △G is the activation energy for the nucleation of a critical number of the clustered atoms, △G* is the activation free energy for diffusion through solid/liquid... particles were precipitated on the Ag3Sn grains could be explained by the minimum energy principle. Since nano-Ag3Sn particles located in the liquid were unstable for their quite high surface free energy......
on the stability estimations of liquid and amorphous phases. Gibbs free energy (ΔG) of liquid phase, which can be calculated approximately using mixing enthalpy (ΔHmix) and configuration entropy (Sconfig... bulk metallic glasses were designed and prepared. 2 Calculation method for composition design The liquid stability can be estimated by Gibbs free energy (ΔG) of the liquid alloy system......
and low deformability in the as-cast large specimens. More free volume was detected in the smaller as-fractured specimens, by differential scanning calorimetry, which may be attributed to the occurrence... due to their graded structures. Key words: bulk metallic glasses; mechanical behavior; plastic deformation; shear band; free volume 1 Introduction Bulk metallic glasses (BMGs) have aroused extensive......
J. Cent. South Univ. (2012) 19: 783-790 DOI: 10.1007/s11771-012-1072-8 Energy consumption, indoor environmental quality, and benchmark for office buildings in Hainan Province of China KONG... Development of Hainan, Haikou 570100, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: With rapid economy growth, building energy consumption in China has been......
; 文献标志码:A 文章编号:1672-7207(2012)05-1795-08 Model free adaptive control and parameter tuning...) Abstract: An improved model free adaptive control (MFAC) based on second-order universal model was derived, which can greatly improve the model and control precision. The control law and pseudo-partial......
J. Cent. South Univ. (2012) 19: 633-638 DOI: 10.1007/s11771-012-1049-7 Coupled simulation of BES-CFD and performance assessment of energy recovery ventilation system for office model Yunqing... Abstract: Thermal comfort and indoor air quality as well as the energy efficiency have been recognized as essential parts of sustainable building assessment. This work aims to analyze the energy......
Energy efficient mechanism using flexible medium access control protocol for hybrid wireless sensor networksSUN Ning1, JEONG Yoon-su2, LEE Sang-ho3(1. Department of Computer Science, Chungbuk..., Cheongju 361-763, Korea)Abstract:Energy efficiency is a primary consideration in a wireless sensor network (WSN). This is also a major parameter when designing a medium access control (MAC) protocol......
Energy Transfer from PVK to Europium Complex in Electroluminescence 白峰1,王振家1,韩建民1,刘舒曼1,张希清1,高新1,陈晓红1,邓振波1 (1.Institute of Optoelectronic Technology, Northern Jiaotong University, Beijing 100044...-shifted to the visible region and overlap with the emission spectrum of PVK, which makes the energy transfer possible from PVK to the rare earth ion. Key words:rare earths; rare earth complexes......
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