Advanced Materials Research Vols. 490-495

Abstract: Interior ecological design attaches great importance to the comfort and beauty in living environment, emphasizes to save the resource and protect the environment, advocates the resource-saving and recycling. The existing state of the interior ecological design in China is analyzed firstly in this paper, followed by the discussion of the whole design principle on interior ecological design, as well as the analysis on the changes of interior environment brought by the natural elements, which briefly explains the importance of the interior ecological design. The main idea and primary elements of interior ecological theory is to advocate the comfort and beauty as well as resource-saving and environment-protecting. From the angle of sustainable development, the author appeals that architecture, while benefiting the contemporaries, should leave a comfortable living space and promote sustainable development for the offspring

Abstract: This paper presents an engineering method for analyzing the kinematics and inverse kinematics of a kind of Six-DOF industrial robots. Firstly, we build an engineering coordinate system for this kind robot, and then get expressions of closed-form solutions to both kinematics and inverse kinematics. From the process of deducing the expressions of closed-form solutions, we can analyze common singularities existing in workspace. Lastly, we design programs for both kinematics and inverse kinematics and simulate the movement of this kind robot. This method, compared with the structures of traditional solutions, is easier and understandability by leading into two conceptions- the position end and the tool end. What is more significant is that the robot can move safely when the wrist is under the singularity by using transitional stage. The transitional stage can make the tool of the robot move a line without join angel sudden change. The program solves the problem that all domestic industrial robots can not move when the wrist is under the singularity. This program is realized successfully on the welding robot of SIASUN Corporation.

Abstract: For any positive integer denotes the largest - power less than or equal to ,and denotes the smallest - power greater than or equal to . Let be a prime, denotes the large exponent of power which divides .In this paper we use elementary method to study the mean value properties of and ,and give two interesting asymptotic formulas.

Abstract: In order to improve and purify the magnetic environment within vectors, a measurement of the slender magnet remanence was studied. Approximate calculation method was used for changing the calculation of the magnetic, from vector operations into scalar ones. And then an indirect measurement formula of optical-pumping was obtained. The measurement experiments of four cylindrical magnet romance showed that the method was simple, effective and high-precision.

Abstract: The U.S. national environmental performance partnership system (NEPP) includes national environmental policy planning system, performance partnership agreement (PPA) and performance partnership grant (PPG) three elements. National environmental planning policy establishes the highest level of environmental plans and objectives meanwhile monitor and evaluate the performances. PPA and PPG implement the plan to meet the goals. With the status of environmental management in China, the U.S. NEPP system can inspires our government mainly in four aspects: to bring all levels of governments into play, to create specific targeted environmental protection activities, to found a sound monitoring and evaluation system and to form the test data Scientifically

Abstract: A risk management system is put forward to handle the risks raised from supply chain complexities. The system puts emphasis not only on risk precautions and control but on continuous development plan of the system as well to ensure the safety, continuity and high efficiency of the flexible and agile supply chain.

Abstract: Josef Müller-Brockmann was a Swiss graphic designer and teacher, who is famous of his use of typography. This paper systematically analyzes his six poster works from the perspective of design geometry. The posters’ titles are ‘Junifestkonzert’,‘Tonhalle Quartett’,‘Der Nussknacker’,‘Musica Viva’,‘Helmhaus Zurich’ and ‘Protegez L Enfant’. In these posters, different geometric elements are used in delicate, planned ways to express specific themes. Format, proportion and scale are the main focus of the analysis. Auxiliary lines are used to show how geometry is used to create beautiful art. This paper is intended to help designers understand the ways in which geometry can be applied to graphic design, creating works with strong visual dynamics and easily recognized focal points.

Abstract: After the Financial Crisis, to stave off recession, the United States, the European Union enacted and promulgated a series of policies, those developed countries not only put forward the development of new energy industry as avery important national economic strategy but also make the relevant laws and regulations and policies to ensure a favorable environment for new energy industry. In such a new situation, our country is vigorously promoting the development of new energy sources. But we also meet some problems in the process of develop. This paper discuss the issues regarding the policies and capital bottleneck that appears on the development of new energy industry, calls upon the Government to implement relevant policies of new energy industry as soon as possible and make effort to support the industry development

Abstract: A method of solving contact trajectory boundary is developed for spiral bevel gear. Tooth surfaces of pinion and gear are projected to axial cross section based on rotation transformation, vector operation is used to distinguish whether contact point belongs to tooth surface or not. Distances between contact point and every boundary of tooth surface are calculated, if the minimum distance is less than preset value, this contact point is considered to be contact trajectory boundary. Starting from initial point of TCA, contact point approaches contact trajectory boundary by adaptive step size, when currently step size is greater than preset step size, the value of the last contact point is used as initial value for new contact point, otherwise initial value is calculated by particle swarm optimization with penalty function, this method can improve the solving speed greatly while keeping stable. Finally, the validity and practicability of this method are proved by a numerical example.

Abstract: With advantages and improvements of HRTS algorithm and DMTS algorithm, a time synchronization algorithm based on energy effective strategy and available to multi-hop network is introduced in this paper. With guarantee of synchronization accuracy, the algorithm prolongs lifetime of WSN. Experiment in Zigbee network indicates that triple-hop synchronization error is less than 15 milliseconds.