Papers by Keyword: Process

Abstract: Project schedule management is the management to each stage of the degree of progress and project final deadline in the project implementation process. Its purpose is to ensure that the project can meet the time constraints under the premise of achieving its overall objectives.When the progress of schedule found deviation in the process of schedule management ,the progress of the plan which have be advanced previously need to adjust.This article mainly discussed to solve the following two questions:establish the schedule optimization model by using the method of linear;discuss the particle swarm optimization (PSO) algorithm and its parameters which have effect on the algorithm:Particle swarm optimization (PSO) algorithm is presented in the time limited project and the application of a cost optimization.

Abstract: A new unburned brick was prepared from the Ti-bearing blast furnace slag as an aggregate and PVA modified by epikote as cementitious materials. The effects of modified PVA and auxiliaries on compressive strength of unburned brick were studied by the orthogonal test method. The results show that samples have better properties and low cost when the samples have a composition of slag dosage 72 %, modified PVA dosage 6%, auxiliary 1 dosage 6%, auxiliary 2 dosage 10%, water 6% and the process conditions of preparing the brick sample were mixing time 1 h, forming time 10 min, forming pressure 40 MPa, and curing time 7 d. The study reveals that the samples properties can meet the standard requirements of excellent grade products (MU20) in GB11945-1999.

Abstract: The continuous automatic CNC lathe processing completed all turning process, should pay attention to choose rational cutting parameter, cutting tool, the reasonable choice selecting fixture, determine the processing line, processing route and machining allowance, fixture installation points, etc. And from change knife complement ensure dimensional accuracy, semi-finishing elimination of the influence of screw clearance to ensure dimensional accuracy was studied considering control dimension precision techniques.

Abstract: This article conducts research on the structure of board and the complete set of equipment development technology. It designs and develops new composite structural design solution and process route. In turn, it develops automatic and smart complete set of equipment, which can produce new high strength composite board. The board combines the advantages of corrugated fiberboard and honeycomb cardboard, so it has broad application prospects and a huge market potential.

Abstract: Based on scale and output, process design assures high-end products for Baogang, ensures advancement and reliability of devices, enhances Chinese split supply ratio; ability to decrease investment and implement sustainable scientific outlook on development. To introduce production scale and product scheme in Baogang 2250mm hot rolling project, and illustrate design flow, process arrangement and equipment level. Ability to insist on a high starting point, reference to international standards, use advanced devices in order to meet high-quality needs and achieve strong competitiveness, adhere to strategy of sustainable development, improve on utilization efficiency of raw materials, energy and water, accomplish cyclic utilization. Leading products are high-quality rare-earth auto plates, steel sheets for home electrical appliances. The layout of plant is tightly linked with process design and whole plan, short process, smooth logistics, less middle stages and advanced automatic control system create international level in 21st century.

Abstract: A novel catalyst CF-R for hydrogen peroxide bleaching to wine cork stopper was chosen to substitute the traditional imported item, and the corresponding bleaching process was studied. The influence of catalyst CF-R dosage, H₂O₂ concentration, bleaching temperature and time on cork whiteness and capillary effect were discussed. The optimized bleaching process for wine corks was obtained as follows: H₂O₂ concentration 14%, catalyst CF-R dosage 80g/L, bleaching temperature 70°Cand bleaching time 60 min. Comparing with the expensive imported catalyst, the amount of catalyst CF-R is greatly decreased, as is significant for not only cutting down the expenditure of chemicals, but also minimizing the burden on bleaching sewage disposal.

Abstract: The targeted and scientific strategies of safety management are badly in need and its owing to the different characteristic of the complexion in construction environment, technology and constructors. In order to build a construction safety knowledge management that based on construction process through brings the methods of knowledge into the construction site. Finally analysis the main process parts of intellectual resources to realize the safety goals and improve the safety management.

Abstract: Natural building stone is an indispensable element in the landscape construction. This paper introduces the basic characteristics and properties of natural stone, Starting from the classification of natural building stone, Through the stone rock composition and stone of physics, chemistry, decorative research and sum up, In order to form a complete system of landscape designers identify, selection and use of stone materials, Based on this system, further research the stone in modern landscape application form and the construction technology, and discuss the existing problems in the process.

Abstract: In the present study the Solanum tuberosum, was used as the raw material to further exploitation and utilization and carry out the intensive processing of it. After cleaning and grinding into sauce and mixing with the supplementary material , and sterilizing the Solanum tuberosum jam was bottled and the nutritional of the ingredient of the jam was analysised by chemical and instrumental method. The results indicated that the Solanum tuberosum jam's color was bright and light red brown. Its flavor was tasty and the nutrition was rich. The protein content was 26.0mg g-1, including 18 kinds of amino acids and 8 kinds of essential amino acids needed by the human body. The fat was 3.0 mg g-1, as well as the rich mineral substances and the vitamin. For example Vitamin C content is the highest: 212.0 ×10-3mg g-1, The calcium content is as high as 24.3×10-2mg g-1. The Solanum tuberosum jam was one of the nutritional condiments for the old and the young. This study provided a theoretical and practical foundation for further exploitation and utilization of the Solanum tuberosum.

Abstract: In this study, aiming at the characteristics of Abelmoschus manihot (L.) bast lignin content is high and degumming difficulty, it introduces a new type of degumming methods. Microwave-assisted treatment was used in the degumming process of Abelmoschus manihot (L.) Medik. The effect of NaOH concentration, microwave-assisted treatment time and temperature on the residual gum content in Abelmoschus manihot (L.) Medik fibers were investigated. The result showed that the optimal conditions by microwave-assisted treatment were 50min of processing time,10g/L of NaOH concentration and 95°C of temperature when the residual gum content could reach to 0.96%. Compared with the traditional process, this method significantly shortened the time from 90-240min to 50min. Developed a highly efficient, low energy consumption degumming process, and the Abelmoschus manihot (L.) fiber after the degumming process was be applied to the development and utilization of textile products.