Advanced Materials Research Vols. 971-973

Abstract: Many new Grand Theaters are constructed around China in recent years, and it is very important for architect to be familiar with the basic principle and knowledge of acoustics when designing the theaters. RT (Reverberation Time), ITDG (Initial Time Delay Gap), Loudness, BR, Surrounded sense and spatial sense are the major factors that affect the sound quality of the hall. All of them determine the different subjective feeling and quality of sound. According to the causes and requirements of these factors, the basic recommendations are put forward for theater auditorium hall design to ensure good sound effect.

Abstract: low power consumption, low emissions "low carbon economy" has become a new model of economic development of countries to pursue. Traditional GDP indicator has been unable to account for changes in the situation of a country or region 's resource consumption and environmental quality , can not fully reflect the true picture of social development criteria can not adapt to a low-carbon economy. Currently measure low-carbon economy is a very effective indicator green GDP. This paper analyzes the environmental context under China's current economic development , compared to the traditional GDP, indicates the importance and necessity of green GDP , and the current problems in the form of proposals and conducted under the future .

Abstract: In this paper, examples of a city sewer construction project , for analysis for municipal engineering problems in pipeline construction , and summed up the sewer construction quality control points .

Abstract: With the continuous development of science and technology, the computer simulation technique has been applied into many aspects of water conservancy public practice. A brief introduction, advantages and implementation process of the computer simulation technique were summarized in the paper. An optimal construction scheme was obtained on the analysis and comparing of the simulation results on the basis of the application of the computer simulation techniques in water conservancy construction.

Abstract: A method of determining the connection force between crop roots and soil was developed. A TG-1 tensile testing device was designed which consisted of an activities tripod platform, a screw mechanism, a special clamp and sensor-signal processing system. The force transferred to the screw mechanism with the help of a hand wheel was only 1/97 of the maximum connection force between crop roots and soil. The clamp used self-locking structure, and it could clamp most of the crop stalks with different diameters. Take the maximum connection force as the measurand for the connection force between crop roots and soil. Using the TG-1 tensile testing device, experiments were carried out on oilseed rape. The results showed connection force between oilseed rape roots and soil ranged from 36N to 237N. The proportion of the force between 100 and 150N was the most, taking up 45.5%.

Abstract: The idea of green cabling system includes energy saving and environmental protection. Green cabling system design and installation for energy conservation to reduce energy consumption is significant, and this is also the need for future cabling system an important factor in thinking and direction. Rational design and display cabinet to avoid hot and cold air short circuit. Route planning and reasonable layout, high-density pre-connected wiring products, can significantly reduce the wiring space. So that we can increase the cooling effect of air conditioning and reduce the electricity consumption. Meanwhile, green cabling system should choose Environmental protection cabling products. Driven by three factors (the standards, user needs and technological progress), the concept of Green Cabling technology evolved into the cabling industry trends. With related international, national standards and technology development, Green cabling system design is the focus of this paper.

Abstract: The submerged membrane bioreactor (MBR) was used to treat schoolyard domestic sewage. The impact of DO、pH and HRT to the removal effect of COD and NH₃-N were studied. The results show that when DO=2.5 mg/L, pH=6.5~8.0, HRT=8 h, the removal effect of COD and NH₃-N is above 96% and 88%, which can meet the China Water Quality Standard for Urban Miscellaneous Water Consumption (GB/T 18920-2002).

Abstract: Subgrade soil is very important materials to support highways. Resilient modulus (M_R) has been used for characterizing stress-strain behavior of base or subbase subjected to repeated traffic loadings. Several methods to estimate the resilient modulus were suggested in the past years. The main objective of this study was to test the resilient modulus in the laboratory. The Subgrade soil was selected in Henan province. Resilient modulus tests were conducted with UTM. Additional analysis was performed to discuss the factors of the test results.

Abstract: With the rapid development of China's economy and the increasing levels of science, our country's high-rise building height and number of layers is also increasing. Especially in the 21st century, our country develop toward the height of high-rise buildings ever higher, more layers, better equipped, more complete, more advanced technology more economically rational. High-rise building has become a symbol of a modern metropolis. However, due to the high-rise buildings have many people, so relevant norms on its construction and drainage system design and fire safety, reliability and economic practicality of a higher requirement, this requires a high-rise building water supply and drainage system on the technical design more reasonable, economic budget cost savings at the same time to achieve its design function.

Abstract: There remarkably exists subjectivity and selectivity in user’s recognizing and evaluating outside-class spaces. By using the outside-class spaces of four teaching buildings in certain campuses in South-China as studied samples, this paper deals with the ways to utilize, recognize and evaluate them in the aspects of recessive psychology and dominant behaviour, namely to know about the information regarding the user’s feelings - not only the situations of users but also their personal experiences. In the process of investigation, great stress was laid on acquiring the meanings and types of drawing, understanding the environmental features of the samples and collecting the present detailed information about the evaluated targets, users’ states and their individual experiences. So, it is possible for the author to devise a qualitatively analytical method to find out the using habits of varied outside-class spaces as well as the use frequencies and regular patterns in the form of languages and cognitive maps, thereby offering means of investigating and analyzing the outside-class spaces about teaching buildings, and being beneficial to the design and utilization of such spaces.