Engineering advances for input reduction and systems management to meet the challenges of global food and farming futures

2010 ◽  
Vol 149 (S1) ◽  
pp. 55-61 ◽  
Author(s):  
W. DAY
Keyword(s):  
Negative Impact ◽  
Integrated Management ◽  
Supply And Demand ◽  
Farming Systems ◽  
Production Performance ◽  
Land Area ◽  
Modern Engineering ◽  
Optimization And Control ◽  
And Control ◽  
Global Food

SUMMARYImprovements in farming systems and food supply will come from: increased production efficiencies per unit land area or per unit input of key components such as water or fertilizer; from less negative impact on local and global environments, allowing sustainable biodiversity goals to be integrated with production performance; and from enhanced approaches to bringing global supply and demand in balance, allowing internationally agreed goals for biosphere stability to be shaped, managed and delivered. Each stage will deliver significant improvements to current farming approaches. Modern engineering methods and technology advances have enhanced productivity in all major industries, and farming is yet to make much progress by developing and adopting these technologies. Sensors, control and integrated management systems will be major features, delivering enhanced farming productivity per unit input and per person employed, complemented by decreased environmental impacts and lower losses in the food chain. New insights into modelling and interpreting systems' performance will provide key contributions to optimization and control under complex challenges.

Calculation Model of Torpedo Ladle Number

2015 ◽  
Vol 713-715 ◽  
pp. 267-273
Author(s):  
Bang Fu Huang ◽  
Xiao Lei Zhou ◽  
Gui Fang Zhang ◽  
Zhe Shi
Keyword(s):  
Blast Furnace ◽  
Continuous Caster ◽  
Supply And Demand ◽  
Calculation Model ◽  
Operation Process ◽  
Casting Ladle ◽  
Process System ◽  
Optimization And Control ◽  
And Control ◽  
The Relationship

In order to predict scientific and reasonable torpedo ladle number and optimize torpedo ladle scheduling, this article analyzed operation process and turnover cycle of torpedo ladle in K steel plant as the research object. The relationship between blast furnace supply and continuous caster demand is analyzed. Based on relationship between supply and demand, the calculation model of torpedo ladle number is put forward under the conditions of blast furnace supply greater than, less than, and equal to the continuous caster demand. The control model can calculate the number of normal ladle and saving ladle and casting ladle. Satisfactory effects are obtained after applying the calculation model in production. The torpedo ladle number of different relationships between supply and demand can decrease. The research results supplies new methods for optimization and control of ironmaking and steelmaking interface system. The research methods enrich the theory of integration and optimization of metallurgy process system.

scholarly journals Runoff optimization and control for basin water allocation

2021 ◽  
Author(s):  
Yongyuan Lang ◽  
Changqing Meng
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Water Distribution ◽  
Supply And Demand ◽  
Water Shortage ◽  
Runoff Water ◽  
Optimization And Control ◽  
Basin Water ◽  
Water Supply Shortage ◽  
And Control

Abstract The water distribution plan for the three major irrigation districts (Changma, Shuangta, and Huahai) in the Shule River Basin in the planned year was analyzed in this study in an effort to resolve the insufficient natural endowment of water resources and contradiction between supply and demand throughout the basin. Based on this plan, and under the condition of satisfying the scheduling constraints of cascade reservoirs, the minimum total water supply shortage in the watershed was taken as the main goal coupled with the cascade reservoir runoff optimization control coefficient. An optimized dispatch model of the reservoir group was established accordingly. The large system coordination decomposition algorithm was called to solve the model and obtain the water scheduling scheme of each reservoir. After the optimal regulation of runoff, the water demand of the three major irrigation areas of Changma, Shuangta, and Huahai in the planned year is greater than the available water resources of the Shule River and the Petroleum River. The total surface runoff water shortage is 66.01 million m3, which cannot be satisfied. Among the reservoirs, Shuangta has the highest water shortage quota of 43.503 million m3, followed by Chijinxia with a water deficit quota of 22.18 million m3, and finally by Changma with a minimum water shortage quota of 0.3277 million m3. The results of this work may provide technical support for water resource allocation and regulations, as well as for the efficient usage of the Shule River Basin.

The Frustration Regulation Journal: A Reflective Framework for Educators

Relay Journal ◽  
2019 ◽  
Author(s):  
Sam Morris
Keyword(s):  
Emotion Regulation ◽  
Process Model ◽  
Negative Impact ◽  
Language Education ◽  
Short Article ◽  
Language Classroom ◽  
As Stress ◽  
And Control ◽  
Important System ◽  
Behavioural Strategies

Teachers and advisors involved in the emotional business of language education feel frustrated from time to time, and if such emotions are not managed healthily, they may lead to negative outcomes such as stress and burnout. One important system for taking control of frustration is emotion regulation, the cognitive and behavioural strategies through which individuals manage their emotions. In this short article, I define frustration and discuss its negative impact on the language classroom. I then introduce a structured reflective journaling tool, built upon Gross’s Process model of emotion regulation (Gross, 2014, 2015) which may help teachers and advisors develop greater awareness and control over experiences of frustration.

Five-Lump Kinetic Model for the Catalytic Cracking Process\

2018 ◽  
Vol 69 (10) ◽  
pp. 2633-2637
Author(s):  
Raluca Dragomir ◽  
Paul Rosca ◽  
Cristina Popa
Keyword(s):  
Kinetic Model ◽  
Programming Language ◽  
Catalytic Cracking ◽  
Computational Method ◽  
Industrial Data ◽  
New Model ◽  
Optimization And Control ◽  
Cracking Process ◽  
And Control ◽  
Matlab Programming

The main objectives of the present paper are to adaptation the five-kinetic model of the catalytic cracking process and simulation the riser to predicts the FCC products yields when one of the major input variable of the process is change. The simulation and adaptation are based on the industrial data from Romanian refinery. The adaptation is realize using a computational method from Optimization Toolbox from Matlab programming language. The new model can be used for optimization and control of FCC riser.

Optimization and Control Petroleum Refinery Wastewater Treatment Systems — Status, Trends and Needs

1989 ◽  
Vol 24 (3) ◽  
pp. 463-477
Author(s):  
Stephen G. Nutt
Keyword(s):  
Wastewater Treatment ◽  
Process Control ◽  
Petroleum Refinery ◽  
Control Strategies ◽  
Refinery Wastewater ◽  
Statistical Process ◽  
Petroleum Refinery Wastewater ◽  
Optimization And Control ◽  
And Control ◽  
Wastewater Treatment Systems

Abstract Based on discussions in workshop sessions, several recurring themes became evident with respect to the optimization and control of petroleum refinery wastewater treatment systems to achieve effective removal of toxic contaminants. It was apparent that statistical process control (SPC) techniques are finding more widespread use and have been found to be effective. However, the implementation of real-time process control strategies in petroleum refinery wastewater treatment systems is in its infancy. Considerable effort will need to be expended to demonstrate the practicality of on-line sensors, and the utility of automated process control in petroleum refinery wastewater treatment systems. This paper provides a summary of the discussions held at the workshop.

Managing Water for Food and Agricultural Transformation in Africa

2019 ◽  
pp. 469-487
Author(s):  
Timothy O. Williams
Keyword(s):  
Water Resources ◽  
Food Systems ◽  
Integrated Management ◽  
Farming Systems ◽  
Rural Transformation ◽  
Agricultural Transformation ◽  
Development Agenda ◽  
Policy Measures ◽  
Technical Solutions ◽  
Food Value

This chapter examines the links between water, food and society in Africa. Agricultural transformation to promote growth, eliminate poverty and hunger and sustain ecosystems is one of the central pillars of current development agenda in Africa. Achievement of this agenda will crucially depend on sustainable water management. However, agri-food systems and water resources are under greater pressure than ever before due to demographic, economic and climatic changes. The nature and scale of these changes suggest that only a holistic and integrated management of all shades of water resources, green, blue and grey, will allow Africa to eliminate hunger and poverty. Research-based technical solutions as well as institutional and policy measures are proposed that would allow available water resources to be sustainably used to promote climate-resilient farming systems, improve agricultural productivity and food security and spur the development of viable food value chains needed for agricultural and rural transformation.

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