期刊文献+
共找到9篇文章
< 1 >
每页显示 20 50 100
The Adaptive Planting and the Prospect of Industrial Development of Quinoa in China 被引量:1
1
作者 Gong Yongchao Ding Hanfeng +4 位作者 Pu Yanyan Song Dongtao Liu Baomin Guo Xiuxiu Li Nana 《Animal Husbandry and Feed Science》 CAS 2018年第1期47-51,共5页
Quinoa is the only single plant meeting the basic nutritional needs of the human body. It is the whole nutritious food with nutritional balance, wide adaptability, strong resistance and other characteristics. In this ... Quinoa is the only single plant meeting the basic nutritional needs of the human body. It is the whole nutritious food with nutritional balance, wide adaptability, strong resistance and other characteristics. In this paper, the botanical characteristics and nutritional value of quinoa were systematically introduced, and the development of quinoa in China was reviewed. The problems of domestic quinoa industry, the shortage of germplasm resources, the lack of innovation and high-yielding cultivation techniques were analyzed. To provide theoretical references for quinoa planting and industrial development in China, the countermeasures to improve the investment of quinoa industry and promote the development of multi-form industry were put forward. 展开更多
关键词 Quinoa Adaptive planting industrial development Prospect
下载PDF
Real-time performance of periodic data transmission in EPA industrial Ethernet 被引量:2
2
作者 刘宁 仲崇权 莫亚林 《Journal of Beijing Institute of Technology》 EI CAS 2012年第3期336-342,共7页
To evaluate and improve the real-time performance of Ethernet for plant automation(EPA) industrial Ethernet,the real-time performance of EPA periodic data transmission was theoretically and experimentally studied.By... To evaluate and improve the real-time performance of Ethernet for plant automation(EPA) industrial Ethernet,the real-time performance of EPA periodic data transmission was theoretically and experimentally studied.By analyzing information transmission regularity and EPA deterministic scheduling mechanism,periodic messages were categorized as different modes according to their entering-queue time.The scheduling characteristics and delivery time of each mode and their interacting relations were studied,during which the models of real-time performance of periodic information transmission in EPA system were established.On this basis,an experimental platform is developed to test the delivery time of periodic messages transmission in EPA system.According to the analysis and the experiment,the main factors that limit the real-time performance of EPA periodic data transmission and the improvement methods were proposed. 展开更多
关键词 Ethernet for plant automation(EPA) industrial Ethernet periodic data transmission real-time performance delivery time
下载PDF
Problems in the Development of Traditional Chinese Medicinal Materials Planting Industry in Shiyan City and Countermeasures
3
作者 Jun ZHOU Nengwu XIAO Huaping ZHOU 《Agricultural Biotechnology》 CAS 2019年第6期126-132,共7页
Through the analysis on the cultivation advantages and development problems of traditional Chinese medicinal planting industry in Shiyan City, Hubei Province, some measures were proposed to enlarge and enhance the tra... Through the analysis on the cultivation advantages and development problems of traditional Chinese medicinal planting industry in Shiyan City, Hubei Province, some measures were proposed to enlarge and enhance the traditional Chinese medicinal planting industry, namely, large-scale, standardized, market-oriented and regionalized planting, thereby making it the pillar industry for farmers to increase income. 展开更多
关键词 Shiyan City Problems and Countermeasures traditional Chinese medicinal materials planting industry
下载PDF
Corrosion in Control Systems Decrease the Lifetime of the Electronic Devices of the Industrial Plants of Mexicali,BC,Mexico
4
作者 Gustavo Lopez Badilla Maria Marcela Acosta Gomez +4 位作者 Elizabeth Romero Samaniego Sandra Luz Toledo Perea Rodolfo Thomas Guevara Garduno Carlos Omar Gutierrez Marquez Juan Pablo Quezada Hinojosa 《Open Journal of Air Pollution》 2013年第2期29-35,共7页
The principal factor to determine the economical value of the products manufactured in the electronics industry is due to the productive yielding. This is important for the cost of the articles fabricated in this type... The principal factor to determine the economical value of the products manufactured in the electronics industry is due to the productive yielding. This is important for the cost of the articles fabricated in this type of industrial plants installed in Mexicali city, where around 80% of companies are, and which fabricate electronic devices and systems, or have industrial electronic systems and machines to their manufacturing process. Mexicalicity is located in theBaja CaliforniaStateof the northwest ofMexico, which is a border city with Calexico in theCaliforniaStateof the United States of America (USA). The region located in Mexicali, is a desert area. Geothermal plant is located in this area, which is an important industry and supplies electricity to this city and its valleys and some cities on southwest of United States for daily activities. This company emits hydrogen sulfide (H2S) as a main air pollutant that reacts with oxygen in the atmosphere, generating sulfur oxides (SOX). This chemical is dispersed to the city of Mexicali in which industrial plants are located with electronic control systems, and penetrates to indoor rooms. Those cause the corrosion process. The presence of corrosion leads to the deterioration of electrical connectors, the connections of electronic systems and the decreasing of the lifetime of these control systems. Other air pollutants that are considered as chemical agents which cause damage to materials used in the electronics industry, are the sulfurs and nitrogen oxides (NOX), emitted from the traffic vehicle and some industries. This causes the low productive yielding of electrical and electronic devices and systems used in the companies of this city, and is a major concern to specialized people, managers and owners. To analyze the productive yielding of electronic devices and systems installed in indoor of the electronics industry. For this reason, to know the principal causes of it, a study in three industrial plants, to determine the grade level of deterioration of the electronic control systems (ECS) used in the electronics industry of this city was made. The results showed that at major air pollution concentration detected by specialized methods, the lifetime of the ECS was decreased by the generation of corrosion in their electrical connectors and connections. This was caused for the levels of air pollutants mentioned above, than exceed the air quality standards in some periods of the year, added with the levels upper of relative humidity levels (RH) and temperatures of 85% and 25°C in winter and 80% 35°C in summer, being a main factor of this electrochemical phenomenon. 展开更多
关键词 CORROSION Electronic Devices Control Systems industrial Plants
下载PDF
Exploitation of Wild Flowers and the Sustainable Development of Flowers Industry in China 被引量:4
5
作者 HONG Li PANG Songling ZHUO Lihuan 《Journal of Northeast Agricultural University(English Edition)》 CAS 2008年第2期76-79,共4页
This article introduced the new methods on the research of the wild flowers and plants idioplasmic resources, elaborated the introduction and domestication and exploitation of wild flowers and plants idioplasmatic res... This article introduced the new methods on the research of the wild flowers and plants idioplasmic resources, elaborated the introduction and domestication and exploitation of wild flowers and plants idioplasmatic resources and the sustainable development of flowers and plants industry in China, and put forward some proposals on the existing question and the prospects for the development. 展开更多
关键词 wild flowers and plants development and utilization flowers and plants industry sustainable development
下载PDF
Applying Spray Drying to Customized Powder Manufacture 被引量:1
6
作者 Keith Masters 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2004年第6期744-749,共6页
Spray drying is an important continuous industrial process for drying pumpable liquid formulations irrespective of their heat sensitivity, rheology, solids content and processing rate. Furthermore spray drying has the... Spray drying is an important continuous industrial process for drying pumpable liquid formulations irrespective of their heat sensitivity, rheology, solids content and processing rate. Furthermore spray drying has the capability through drying chamber design, plant layout and mode of operation to produce dried products of specific particulate size and morphology. These are important aspects when spray drying technology is applied to the needs of customized powder manufacture. There are many examples in industry where spray dried powders have to meet stringent specifications set by such factors as end-product powder quality standards dictated by global competition,dry raw material characteristics required for optimum downstream processing, and dry materials handling to comply with environmental, health and safety issues. Spray drying is no longer regarded just as a convective industrial drying concept, but also as an integral part of modern manufacturing practices applying powder technology. This paper reviews the aspects of spray dryer design and operation for consideration when customized powder manufacture is involved. 展开更多
关键词 industrial plant design and selection particle morphology powderproperties spray drying
下载PDF
Establishment and verification of labor demand estimation model in planting industry
7
作者 Xu Bing Wang Fulin +1 位作者 Wang Jiquan Zhao Shengxue 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2017年第6期86-93,共8页
In view of the poor precision of the theoretical model of labor demand estimation,it is difficult to estimate and predict the actual production problems accurately.Based on the actual production conditions and the rel... In view of the poor precision of the theoretical model of labor demand estimation,it is difficult to estimate and predict the actual production problems accurately.Based on the actual production conditions and the relationship between the degree of mechanization of planting and the demand of labor force,this study established an estimation model for the labor demand of planting industry considering the factors of planting structure and mechanization degree.In order to ensure high reliability of data,the method of checking out abnormal data was adopted to obtain the cultivated land area index when the mechanization degree is from 0 to 100%.Taking Suihua region(Heilongjiang Province,China)as an example,the theory of the research was analyzed and applied.This study accessed to the data of cultivated land area per labor can afford when the mechanization level in Suihua area were 0 and 100%respectively through the investigation,and the average cultivated land area data of each labor force in two cases were sorted out and the abnormal data were eliminated at the same time.Finally,using the derived model,the data obtained and the mechanization level and cultivated land area of Suihua in the future,the labor demand amount in Suihua area from 2015 to 2019 were predicted.The model established in this study can be used to calculate the quantity of both current labor demand in planting industry and the labor demand in the various moments in the future through forecasting the future mechanization level and cultivated area which are the two main factors influencing the quantity of labor demand in planting structure. 展开更多
关键词 planting industry LABOR estimation model case verification forecast evaluation
原文传递
AN APPLICATION OF MODELING AND SIMULATION TO SUPPORT INDUSTRIAL PLANTS DESIGN
8
作者 FRANCESCO LONGO MARINA MASSEI LETIZIA NICOLETTI 《International Journal of Modeling, Simulation, and Scientific Computing》 EI 2012年第1期90-115,共26页
The focus of the research work presented in this article is the design of an industrial plant devoted to produce different types of hazelnuts-based products.The industrial plant design is initially based on a traditio... The focus of the research work presented in this article is the design of an industrial plant devoted to produce different types of hazelnuts-based products.The industrial plant design is initially based on a traditional approach(production process flow charts analysis and plant layout study)and it is then supported by a simulation model mainly used to investigate the system behavior in different operative scenarios.The industrial plant simulation model(called HAZIMUT,HAZelnuts Industrial plant design and man-agement based on advanced simulation Models Utilization)recreates the entire hazelnuts production process(based on nine different production lines).The HAZIMUT simulation model is used to evaluate the effects—caused by multiple changes in the production lines capacities—on multiple performance measures based on machines levels utilization,work in process and production system productivity.The simulation results show how variations in production lines capacities generate an over-reaction of the system with major changes in some of the performance measures therefore stressing the importance to use the HAZIMUT simulator to tune the system correctly to improve the overall plant performances. 展开更多
关键词 industrial plants production capacity DESIGN MODELING SIMULATION
原文传递
Improved estimation model and empirical analysis of relationship between agricultural mechanization level and labor demand 被引量:1
9
作者 Wang Fulin Zhao Shengxue Fu Xiaoming 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2016年第2期48-53,共6页
The research on the relationship between mechanization level in planting industry and labor demand was carried out based on the present literatures.The former estimation model of labor demand in planting industry was ... The research on the relationship between mechanization level in planting industry and labor demand was carried out based on the present literatures.The former estimation model of labor demand in planting industry was established without analyzing the effects of planting structure on labor demand in planting industry.The purpose of the research is to develop and perfect the theory of estimating both labor demand and rural surplus labor in planting industry,then to provide some theoretical references for scientific estimation.The model established in this research can be used to calculate not only the amount of current labor demand,but also the demand in the various moment of future according to forecasted mechanization level and cultivated areas.Furthermore,it was explored how to obtain the indexes of cultivated areas,mechanization level and the average cultivated area that each labor can burden when the mechanization level is 0 and 100%.According to statistics principle,the methods of inspection to eliminate abnormal data and data processing were given in order to make the data more credible.Finally,an example was presented for demonstration purposes. 展开更多
关键词 agricultural mechanization level planting industry labor demand estimation model data acquisition crop production
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部