With the development of science and technology and the progress of the society, the wearable lower extremity exoskeleton robots become more and more popular. In the paper, on the basis of market research and the theor...
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With the development of science and technology and the progress of the society, the wearable lower extremity exoskeleton robots become more and more popular. In the paper, on the basis of market research and the theory of ergonomics, design sizes of the lower extremity exoskeleton have been determined. Through analysis of the lower exoskeleton structure and movement, the structures of the wearable exoskeleton have been designed. And using Solidworks software, 3D model of the parts of exoskeleton has been drawn and the whole exoskeleton assembly has been completed;through mechanics analysis of the human body each joint, the stress of the three joints have been derived under the static and dynamic condition;Through the calculation of torque and power of each joint, it has been concluded that the maximum torque and maximum power driving the system were 150 Nm and 150 W, respectively.
Building roof greening has the role of regulating the internal temperature of buildings, but the economic benefits of the roof greening is not enough. Based on De ST-h software, this paper establishes a model of roof ...
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Building roof greening has the role of regulating the internal temperature of buildings, but the economic benefits of the roof greening is not enough. Based on De ST-h software, this paper establishes a model of roof greening in Xi'an City, and analyzes the economic benefits of energy saving by using the difference of energy consumption and energy consumption. The results show that although the roof greening in the construction phase of the cost is higher, but due to the roof greening to reduce the internal heat load and cold load, can reduce the annual energy savings of 147 yuan 7380.32 yuan;the investment cost of green roof can be recovered in 7.21 years, can obtain satisfactory economic benefits. The results of this research are expected to enhance the understanding of the whole society, and promote the development of the construction of Xi'an city.
The increasing heterogeneity, dynamism, and uncertainty of emerging DCE (Distributed Computing Environment) systems imply that an application must be able to detect and adapt to changes in its state, its requirements,...
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