Applied Mechanics and Materials Vols. 178-181

Abstract: This paper mainly concentrates on the energy crisis for a long time in Bangladesh. The government is trying its best to overcome this problem. Due to high investment requirement for conventional power plants, responses from the private sector for power generation are very poor. One alternative solution may be the expanded use of renewable energy. At present solar cells are in use for power generation. But due to high initial investment required for solar panel installation, this form of renewable energy has not been practiced much. The aim behind the study is to integrate the architectural planning regarding physical environment and power crisis problem which may lead to an ultimate improvement of socio economic scenario of the country. In doing so the paper proposes a hypothetical model using biogas as a source of renewable energy by using the rural waste-leading to cash from trash.

Abstract: The sources and harm of indoor environmental pollutants was described and a new green theory is put forward that indoor environment pollutants is controlled by overall process based on the residential interior decoration and air pollution status in China, as indoor environment quality becomes more and more important. According to the concept of healthy house to control indoor environment pollutants through five steps that are green interior design, selecting environmental materials, green decoration, green ornament and green fresh air, and healthy and environmental green home could be realized.

Abstract: This paper discussed on constructing the light of the environment, the energy saving products of light environment and psychology, etc. This gives quantitative index in the face of the position of the light source, the color of the light and brightness of the light, and also provides products of green energy. Finally, an indoor ecological design plan of light environmental is given, which would provides important theoretical basis for the indoor ecological design.

Abstract: In this paper, we discuss the indoor scene management based on the portal attribute information. Focusing on the features of indoor scene, it describes a comprehensive definition of portal data structure, based on which we can analyze the scene connectivity easily. This portal structure provides a new method for visibility determination and also accelerates the speed of rendering in this system, which makes it easy to show the real mirror effect.

Abstract: A new type of machine for complex structure decoration materials based on hybrid cubic manipulator with six degree of freedom(DOF) suggested in view of traditional serial manipulator and parallel manipulator, three dimensional translation and rotation of output shaft obtained through lineal driving. Define the description of spacial moving capability of common couples and translation base and rotation base of mechanism, based on the fact of mechanism consists of components, a new description method by topological graph theory of components relationship suggested, new description of serial mechanism and parallel mechanism and hybrid mechanism obtained with this method, description elements include component pane and constrained component pane and component relationship line and constrained component relationship line and spacial relative moving capability between adjacent components. DOF(degree of freedom) of hybrid mechanism analysised with example based on the definition of dimensionity of branch spacial moving capability and mechanism spacial moving capability, necessary and sufficient condition of nonsingularity of mechanism presented. Method of analytic geometry used to find the regular cuboid of the reachable working space shape of mechanism, the volume of the reachable working space rest with the limit of translation of couplers, its influential factors obtained, limit length of guideway etc. are the primary influential factors.

Abstract: This paper reviewed six kinds of indoor air quality (IAQ) evaluation methods, by which the same IAQ status were evaluated. Besides, the relations and distinctions of six methods were also analyzed. The results indicate that the evaluation results of different methods on the same sample are not identical. Fuzzy comprehensive evaluation method, pollution loss rate method and comprehensive index method are relatively accurate, and improved grey relational analysis method has the largest error.

Abstract: With the continuous improvement of living standard, the requirement of interior design is rising today. It caused an uncoordinated between Interior design and architectural design, and a defect of excessive decoration. Thus, it became an inevitable trend, it using the concept of "green design" in the residential interior design. The key question is Instill the concept of environmental protection, focus on people-oriented, use the efficient and intelligent devices, select the green furniture, and collaboration with interior designers and architectural designer.

Abstract: Under such context of people-oriented concept and an increase in the proportion of the elderly in the population, our country has seen a mature development in the interior design industry, thus more attention has been paid to the living space of the elder group. However, the present situation of this industry shows that the design standard for old people wasn't promoted effectively. Concerning their psychological characteristics and the psychological needs of the elderly primarily, the point of this article lies in figuring out the proper design to resolve the old people’ knots, thus achieving their sense of belonging, improving the quality of life in their later years, even extending their life, to create a real home for old people.

Abstract: The paper summarizes the major indoor air formaldehyde pollution sources and major pollutants, introduces the harm of indoor formaldehyde, the interior decoration, decoration, and so brought about by the invisible pollution day and night against the people's health, briefly introduces several method of reducing indoor formaldehyde concentration and analyzing advantages and disadvantages to the different treatment methods.

Abstract: The constructional decoration and constructional flooring projects are the important parts in constructional engineering and currently the qualities of face tile attachment and plaster layer adhering are checked by means of visual observation and gentle knocking with small hammer after the end of project. However, the said conventional visual observation and knocking test methods are more in subjective randomness and low in efficiency to result in poor inspection effect. With the principle of the rebound value being abnormally quite low in case there are air holes or hollowing in the process of compressive strength test of materials with rebound method, the hollowing defect distributions in constructional flooring and architectural decoration engineering can be detected completely, accurately and visually by means of reasonable test point layout and effective defaults judgments.