Advanced Materials Research Vols. 211-212

Abstract: The primary component of soilless rooting media for ornamental plant production is peat. However, quality peat is costly and is a nonrenewable natural resource. The current study compared the suitability of using charred and composted agriculture–forestry organic wastes (AFOW) vs. sphagnum peat as components of the growth medium for the ornamental plant Anthurium (Anthurium andraeanum cv. ‘Pink Lady’). Ten media were prepared from composted corn cobs (C), charred corn cobs (CH), charred garden wastes (CHG), and Pindstrup sphagnum peat moss (P). These media contained (% v/v): CH (100%), C (100%), CHG (100%), C (70%) + CHG (30%), CH (70%) + CHG(30%), C (35%) + CHG (15%) + P (50%), CH (50%) + P (50%), CH (35%) + CHG (15%) + P (50%), C (50%) + P (50%), and P (100%) as the control. After 8 months in the greenhouse, the growth and flowering of transplanted Anthurium were best with P, CH+P, CH+CHG+P. The results indicate that mixing charred AFOW with peat would provide a suitable medium for Anthurium production while reducing the need for peat and converting waste materials into useful products.

Abstract: Rear multi-link suspension is built according to hard point parameters of a car. After the inner rubber bushing stiffness of the lateral rod is changed, the suspension performance were analyzed under the simulation test of parallel wheel travel, loading brake force and discussed with multi-body dynamics and Suspension Kinematics theory. The conclusion is drawn that under the test of loading brake force and wheel travel, changing the axial and torsion stiffness of rubber bushing has no effect on the suspension performance, changing the radial stiffness has a little effect on the camber angle, total track and toe angle. But the change of the radial stiffness has significant effect on the ride rate and wheel rate.

Abstract: With the continuous development of energy projects and the actual needs of the project, project portfolio management technique is known by people more and more. However, current databases of energy project management system are too different. This paper studies actual demand of energy project database, taking portfolio management theory as the basic, and use database modeling technology to build database’s conceptual data model, logical data model and physics data model based on the portfolio of energy project management. These models can be very good instruction of energy database design and construction, and will support energy project portfolio management system design to some guidance.

Abstract: In modern society, informationization is becoming more for the lasting development of tourism. The design and application of Tourism Information System (TIS) is an important power to pull tourism development, then it’s very important to strengthen the constrution of TIS. WebGIS is an very important trend of Geographic information system (GIS). It not only has the general characteristics of GIS, but also has the special characteristics of Internet, thus it becomes the first platform for TIS. With the help of WebGIS, tourism enterprises can improve the management efficiency and service leve. In this paper, the research status of TIS at home and abroad has been discussed, the characteristics and functions of WebGIS has been analysed. Finally, according to the tourism characteristics of Chongqing city, the tourism information was divided into several typies, and then the design of space database，property database and Decision-making support systems has been analysed.

Abstract: As increasingly complex of the energy project management, traditional project management system is not very suitable for energy projects management. Combined with unique characteristics of energy projects, this paper studies the current state of the energy project development and takes advantage of project portfolio management, builds the energy project portfolio management system which includes energy project advices, selection, evaluation, assessment and implementation. The system solves the complex problems of energy project management, and then ensures that energy projects meet the strategic requirements of country and enterprises.

Abstract: Tiny OS Beaconing routing protocol is widely used in Wireless Sensor Network (WSN), but it can easily cause the network to fail because some important nodes use up their energy too fast. The present paper suggests an improved Tiny OS Beaconing routing protocol by adding max sub-node, layer control and route maintaining so as to highly prolong the survival time of the WSN, and make the network more reliable.

Abstract: In this paper, we briefly introduce the concept, composition and the research frontiers of nano-fluorocarbon-based magnetic fluids; then discuss the superior performance, classification and synthesis of the fluorocarbon surfactant in detail and systematically; last, we made an example to illustrate fluoro olefin telomerization method. Research on fluorocarbon surfactant is crucial for further exploration of its coordination to base liquid-perfluoropolyether and further preparation of fluorocarbon-based magnetic fluids.

Abstract: The representation method of rolling bearings knowledge and general structure of knowledge base system are put forward by researching on the knowledge characteristics of rolling bearings fields. A knowledge base system of rolling bearings that is propitious to the knowledge’s acquirement, abstraction, storage, share, application and innovation is built by combining with the technology of knowledge based engineering and expert system, which provides support for intelligent design of rolling bearings.

Abstract: Considering the structure feature and working principle of Opposed Piston Opposed Cylinder engine, mathematical model of kinematics relationship for internal-external piston is build. Using ADAMS software to process kinematics characteristics simulation study and comparing the simulation results with traditional diesel engine, it indicate that the OPOC two-stroke engine has better self-balancing character, less kinematics inertial force and cylinder lateral pressure, and is helpful in reducing the frictional power consumption, and improving the noise-vibration smoothness.

Abstract: In order to measure the terminal voltage of a lead-acid battery online, a DC-to-DC converter – MC34063 is used to convert the D.C. input voltage to the supply voltage of measurement circuit. A three-terminal adjustable regulator of TL431A is used to generate a standard reference voltage for the A/D converter of the Microchip MCU – PIC16F873A. This D.C. voltage meter takes advantage of high accuracy of measurement and high stability.