Automatic Shutter Control System for Home Care Using Local-Loop Approach

2008 ◽  
Author(s):  
Chao Hung Chen ◽  
Hsiung Cheng Lin ◽  
Ying Chu Liu ◽  
Wei Chung Hsu ◽  
Shin-Ming Chang
Keyword(s):  
Control System ◽  
Home Care ◽  
Natural Resource ◽  
Action Control ◽  
Efficient Performance ◽  
The World ◽  
Local Loop ◽  
Practical Performance ◽  
Performance Results ◽  
Elder People

With increasing population of elder people around the world, the demand of home care system such as sufficient sunlight supplier from natural resource is getting much attention in recent years. This paper has proposed a microprocessor (8051) based automatic shutter action control system using 4-speed controlled DC motor. The proposed system can keep sunlight moderate as desired in the indoor room. Real practical performance results are presented to demonstrate the effectiveness of the proposed approach in term of robust, simple, flexible and efficient performance.

Microprocessor-Based Robot Action Control Using Local Closed-Loop Approach

2008 ◽  
Author(s):  
Chao Hung Chen ◽  
Hsiung Cheng Lin ◽  
Ying Chu Liu ◽  
Wei Chung Hsu
Keyword(s):  
Control System ◽  
Real World ◽  
Closed Loop ◽  
Low Cost ◽  
Action Control ◽  
Control Module ◽  
Efficient Performance ◽  
Increasing Demand ◽  
The Individual ◽  
Performance Results

With increasing demand of robot applications in industry or other areas, the development of both reliable and low-cost robot action control system is getting much attention in recent years. This paper has proposed a local closed-loop based robot action control module using independent microprocessors. The robot action commands transmitted from PC via RS232 can be received by the individual authorized microprocessor. There are up to tens of modules to be operated for a variety of robot actions simultaneously and independently. Real world performance results are presented to demonstrate the effectiveness of the proposed approach in term of robust, simple, flexible and efficient performance.

scholarly journals A Prologue of Git and SVN

2019 ◽  
Vol 9 (1) ◽  
pp. 988-990
Keyword(s):  
Control System ◽  
Open Source ◽  
Control Systems ◽  
Source Code ◽  
Version Control ◽  
Control Software ◽  
The World ◽  
Revision Control ◽  
Version Control System ◽  
General Public License

Version Control Software or Revision Control Software are the most important things in the world of software development. In this paper, we have described two version control tools: Git and Apache Subversion. Git comes as free and open source code management and version control system which is disseminated with the GNU general public license. Apache Subversion abbreviated as SVN is one amongst a software versioning and revision control systems given as open source under Apache License. Git design, its functionality, and usage of Git and SVN are discussed in this paper. The goal of this research paper is to accentuate on GIT and SVN tools, evaluate and compare five version control tools to ascertain their usage and efficacy.

A New Vigilance: Identifying and Reducing the Risks of Environmental Terrorism

2002 ◽  
Vol 2 (1) ◽  
pp. 46-64 ◽  
Author(s):  
Elizabeth L. Chalecki
Keyword(s):  
Adverse Effects ◽  
Environmental Degradation ◽  
Natural Resource ◽  
Resource Base ◽  
Proximate Cause ◽  
The Public ◽  
The World ◽  
Political Controversy ◽  
Previous Decade ◽  
Distribution Of Resources

Terrorism is a constant and fearful phenomenon, as America has learned to its recent and terrible cost, and like the nine-headed hydra of ancient mythology, as soon as one group or method is terminated, more spring up to take its place. Environmental terrorism adds a new dimension to this phenomenon, identifying the target as a natural resource or environmental feature. At a time when populations all over the world are increasing, the existing resource base is being stretched to provide for more people, and is being consumed at a faster rate. As the value and vulnerability ofthese resources increases, so does their attractive ness as terrorist targets. History shows that access to resources has been a proximate cause of conflict, resources have been both tools and targets of conflict, and environmental degradation and disparity in the distribution of resources can cause major political controversy, tension, and violence. The purposeful destruction of a natural resource can now cause more deaths, property damage, political chaos, and other adverse effects than it would have in any previous decade. The choice of environmental resources as targets or tools ofterrorism is consistent with both the increasing lethality ofterrorism and the growing envi ronmental awareness on the part of the public.

3. Why are some countries rich and others poor?

2018 ◽  
pp. 31-45
Author(s):  
Ian Goldin
Keyword(s):  
Economic Growth ◽  
Twentieth Century ◽  
South Korea ◽  
Natural Resource ◽  
First Century ◽  
Late Nineteenth Century ◽  
The World ◽  
Late Nineteenth ◽  
Almost All ◽  
Development Trajectories

‘Why are some countries rich and others poor?’ considers various theories of economic growth, including Robert Solow’s widely used 1956 model, and charts the uneven development of countries around the world from the late nineteenth century, through the twentieth century, and into the twenty-first century. Some countries, such as Japan and South Korea, have seen miraculous economic growth, whereas countries such as Argentina and Uruguay have not experienced expected levels of growth. The factors that affect development trajectories include natural resource endowments, geography, history, institutions, politics, and power. While overall levels of poverty have declined, levels of inequality are rising in almost all countries.

Discussing natural resource extraction in cultural landscapes as a cultural value

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Patricia O'Donnell ◽  
Christophe Rivet
Keyword(s):  
Natural Resource ◽  
Cultural Landscapes ◽  
World Heritage ◽  
Cultural Dimensions ◽  
Resource Extraction ◽  
Content Type ◽  
Natural Resource Extraction ◽  
World Heritage List ◽  
The World ◽  
Practical Implications

PurposeNatural resource extraction is perceived as a destructive aspect of human culture. This characterization is widespread, despite the activity having shaped relationships between communities and their environment to create entire sets of cultural values and expressions through settlement patterns, traditional skills and practices, innovation and technology, intangible cultural expressions, local economies and more. The cultural dimensions of natural resource extraction landscapes were discussed at the ICOMOS ADCOM Annual Symposium in La Plata, Argentina, in December 2018. The workshop included experts in cultural landscapes, sustainability, industrial archaeology and industrial heritage. This paper reports on these issues and deliberations focusing on World Heritage cultural landscapes of extraction.Design/methodology/approachThe report considers a broad survey of the World Heritage List and sites on national Tentative Lists to identify those related to natural extraction sites and distinguishing between categories of relict vs. living, and between the types of natural resources being extracted.FindingsThe conclusion is that the World Heritage Committee has yet to address the living value of natural resource extraction. Furthermore, the workshop attendants concluded that there is a pressing need to do so in light of the type, nature and sustainability of these sites. As the source of materials for many outstanding sites on the World Heritage List and the decreasing availability of some resources, the question requires consideration to ensure the sustainable use and livelihood of communities.Research limitations/implicationsThe limitations are set by the general terms of the survey and the limited engagement of knowledgeable individuals.Practical implicationsThe practical implications are related to guidance to review and analyse potential living cultural landscapes related to natural resource extraction.Originality/valueThere is no general discussion on this topic yet amongst professionals. The initiative of the workshop identified that gap and its related necessity to provide guidance.

scholarly journals Assessment of Multi-Use Offshore Platforms: Structure Classification and Design Challenges

2020 ◽  
Vol 12 (5) ◽  
pp. 1860
Author(s):  
Walid M. Nassar ◽  
Olimpo Anaya-Lara ◽  
Khaled H. Ahmed ◽  
David Campos-Gaona ◽  
Mohamed Elgenedy
Keyword(s):  
Control System ◽  
Oil And Gas ◽  
Negative Impact ◽  
Positive Impact ◽  
High Energy ◽  
Vital Role ◽  
Offshore Platforms ◽  
Renewable Energy Resources ◽  
Energy Technologies ◽  
The World

As the world continues to experience problems including a lack of seafood and high energy demands, this paper provides an assessment for integrated multi-use offshore platforms (MUPs) as a step towards exploiting open seawater in a sustainable way to harvest food and energy. The paper begins with background about MUPs, including information regarding what an MUP is and why it is used. The potential energy technologies that can be involved in an offshore platform are introduced while addressing similar applications all over the world. The paper presents the state of the art of MUP structures on the light of EU-funded programs. An MUP would have a positive impact on various marine activities such as tourism, aquaculture, transport, oil and gas and leisure. However, there are concerns about the negative impact of MUPs on the marine environment and ecosystem. Building an MUP with 100% renewable energy resources is still a challenge because a large storage capacity must be considered with a well-designed control system. However, marine bio-mass would play a vital role in reducing battery size and improving power supply reliability. Direct Current (DC) systems have never been considered for offshore platforms, but they could be a better alternative as a simpler control system that requires with lower costs, has lower distribution losses, and has an increased system efficiency, so studying the feasibility of using DC systems for MUPs is required.

Study on Ring Gate Closure in still Water Based on ANSYS

2012 ◽  
Vol 614-615 ◽  
pp. 520-524
Author(s):  
Si Qing Zhang ◽  
Xiu Cheng Hu ◽  
Xiao Fan Li
Keyword(s):  
Operating System ◽  
Control System ◽  
Automatic Control ◽  
Hydropower Station ◽  
Electrical Control ◽  
The World ◽  
Water Based

Ring gate of Ahai hydropower Station is known to the highest ring gate in the world. In this paper, it is calculated to the driving loads of the Ahai ring gate by six hydraulic servomotors during a closure without automatic control (i.e. in case of a breakdown of the electrical control system), analyzed the behavior of the operating system of the ring gate closure in balanced conditions with the permanent loads, and finally shown to how the six servomotors are synchronized on the basis of the driving loads. There are proved to The feasibility and the credibility of this system of ring gate to a case by using ANSYS.

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