Papers by Keyword: Model

Abstract: In order to calculate the structure size of stepped capillary tube, the experiments of flow characteristic of it were performed. The experience benchmark model of flow characteristics of R22 was set up through experimental method in specific reference conditions based on the impedance calculation method. The variable working condition model suitable for a range of conditions was obtained through fixing the condition based on the reference model. The mass flow rate of refrigerant R22 in two stepped capillary tubes with different size was tested. The experimental results show that the stepped capillary tube model has a high precision and working condition of certain flexibility. The deviation of cooling and heating flow between the calculated values and measured values are less than±10%. The model can meet the need of matching for stepped capillary tube on the heat pump type air conditioner with R22.

Abstract: The natural slope in the process of excavation, due to the dynamic action of blasting damage the integrity of the original rock, the slope rock mass occurred the partial or whole layer crack and the formation of slope rock mass loose zone, caused the strength of rock mass damage problem, and even lead to landslide. Aiming at the problem of the dynamic influence of blasting on the slope rockmass, study on the algorithm of the blasting damage in this article, combined with the Xiaolongtan coal mine slope engineering as an example to verified the damage model, the results showed that the damage model calculation value and the damage zone measured results have good consistency.

Abstract: With the introduction of four poplar varieties as the research object, in the growth period, the density of 30cm × 40cm biomass of seedlings were studied. The biomass of different organs of different varieties at seedling stage in different periods of change process, to explore the various organs of poplar seedlings seasonal growth model and biomass accumulation, using multivariate statistical analysis method, the various organs biomass model was established on various poplar species, it can play a guiding role on nursery stock production.

Abstract: The availability of website for an institution is very important, especially for an educational institution just like ABC University. The website can become a mean of communication from the institute to its stake holder: students, parents, industries, lecturers, administrators, and government or from the stakeholders to the institution. The availability of website is also important to increase the image of the institution, since there is university web ranking published by WeboMatrix. ABC University has already built its website and communicated, socialized as well the availability of its website to all students, lecturers, and administrator. So far the adoption of the websites by students, lecturers, and administrators especially by using the Modified Unified Theory of Acceptance and Use of Technology (UTAUT) model has not been explored. This lack of knowledge motivated the researcher to conduct this study. This study investigates the key factors that affect the behavioral intention and used behavior of customers toward the use of the website in ABC University Indonesia. The approach employed for this study is based on a modified unified theory of acceptance and use of technology (UTAUT) model. A survey method was employed to gather data from 310 respondents coming from the students, lecturers, administrator, and management. The collected data was analyzed using a quantitative investigation. The partial least squares (PLS) method was used to quantitatively evaluate the impact of the key constructs of the modified UTAUT model. This research clearly confirmed that modified UTAUT model which consists of performance expectancy, effort expectancy, social influence, facilitating conditions, and content can be used to determine behavioral intention of consumers to use Website.

Abstract: Fan blades noise is mechanical noise and aerodynamic noise, and the aerodynamic noise is the main noise. Fan's speed, blade number, angle, radius of curvature is the main factor affecting the fan blades noise. Key of control fan noise, should be placed in fan design, Reduce the circumferential velocity, leaned blade, increase the radius of curvature is favorable measures of reducing the noise of the fan blade. Control of noise from the source, will achieve better results.

Abstract: The tensile and fracture strength of a medium carbon steel containing 0.2wt%C were determined after austenitisation at 1100^oC for 1 h and subsequent isothermal transformation at 700^oC for 0.5, 2, 6 and 8 h. Only the specimens transformed for 0.5 and 2 h contained martensite and these were l5.67 and 7.20%, respectively. The maximum measured tensile and fracture strength were 91l and 852 MPa, respectively and these were obtained in the specimens with the most martensite (0.5 h). Although after austenitisation and subsequent isothermal transformation there was a loss in ductility, this was accompanied by a very significant improvement in tensile and fracture strength.

Abstract: The crossover of the building of the BDI model and the Agent model helped to materialize the formation of the BDI-Agent model, strenthening the theoretical basis of the intelligent control field. According to recent studies about the equipment support decision making, relative research of the model of BDI-Agent with feedback has made less works. The research on the equipment support decision making BDI-Agent with feedback is an exploration of the study of the BDI-Agent model, On basis of the recommendation of the development of the BDI-Agent model and its primary data structures, brings up a kind of idea about the BDI-Agent model with feedback. To prove the feasibility of the idea, brings out a background, what is the moment when the equipment supporter meets a firethreaten during carrying out a mission, sets up a feedback condition. By means of programming the rationality of the BDI-Agent model with feedback is verified.

Abstract: The design of the municipal life waste recycling path is an integral part of the whole recycling system, it occupies an important position, and its improvement and optimization play a vital role on efficient operation of municipal waste recycling system. Based on analysis, combined with modern logistics theory, aiming at optimization, this paper sets up models for collecting and transshipping paths of municipal waste recycling system.

Abstract: According to the characteristics and trends of our country port development, and the port logistics development mode, and to determine the factors influencing the development of port logistics, and then study the reasonable mode selection method.

Abstract: The main issue in designing the framework for multi-user interaction systems is to provide efficient collaboration mechanisms. The paper discussed characteristics of multi-user interactions, and proposed a hierarchical model for supporting multi-user collaboration. The model included four categories of attributes that defined the form of multi-user interaction - users, interactive task, interactive form and interactive effect. An active rule framework was constructed, including the concepts of the callback event, interactive event and composite event. This paper also described how to map a multi-user interaction model into events and rules.