scholarly journals Waste remanufacturing modeling originated from household equipment

2018 ◽  
Vol 15 (1) ◽  
pp. 151-161 ◽  
Author(s):  
Eugênio De Oliveira Simonetto ◽  
Goran D. Putnik ◽  
Peter Butala ◽  
António Alberto Caetano Monteiro

The growing generation of solid waste is one of the environmental problems that have most affected the world population in recent years. The solid waste generated from home appliances and information technology devices are one of the classes that concern the international community, since they have high toxicity and high potential of environmental pollution. This article presents the design, implementation and testing of a model aimed to evaluate the possibility of their remanufacturingfrom the waste originated from household equipment. In the case developed for the article the waste of printers (inkjet and laser), scanners and computerswere evaluated forthe development of a three dimensional printer (3D Printer). The System Dynamics methodology was used to implement the model, and to verify and validate it.There experiments using three scenarios were developed: an uncertainty scenario with a random rate between 25% and 75% of waste reuse; thegrowth scenario with a rate from 25% to 75% of waste reuse (growth of 5% per year) and; static scenario with a rate of 50% of waste reuse during the simulated time.Results generated by the simulation modelshow that the remanufacturing is a viable alternative for the reutilization of the discarded household equipment.

2021 ◽  
Vol 9 (10) ◽  
pp. 366-378
Author(s):  
Hasan Güleryüz ◽  
Refik Dilber

The inclusion of integrated structures and interdisciplinary relations in education and inclusion in course curricula in the world has become even more important with the prominence of STEM education in the world. STEM means the inclusion of project-based applications in education within an integrated structure with science, technology, mathematics and engineering activities. Motivation/Background: It is noted that the majority of STEM research in our country is focused on science education. The aim of this study is to investigate the effect of 3D printing STEM activities on teacher candidates ' awareness of their use in science course. Method: 37 science teacher candidates participated in the 7 week study. Qualitative research method was used in this study. Qualitative data was taken from the field notes and semi-structured interview. Results: Thanks to 3D STEM activities, teacher candidates achieved to create a realistic product by using their knowledge in different disciplines such as science, mathematics, technology, and engineering and 21st century skills. Conclusions: According to the results of the research, the usage of 3D printer in a science course creates awareness in teacher candidates in terms of three-dimensional thinking and learning experience.


2005 ◽  
Vol 44 (4II) ◽  
pp. 1135-1150 ◽  
Author(s):  
Mohsin Hasnain Ahmad ◽  
Usman Azhar ◽  
Syed Ashraf Swati ◽  
Zeshan Inam

Economic development and population growth in the poor areas of the earth is a subject of an essential concern for the environmental economists. Developing countries are facing and suffering by the serious problem of high population growth which is causing environmental degradation. A rapidly growing population exerts pressure on agricultural land and raises demand for food and shelter which encourages the conversion of forest land for agricultural and residential uses, now we know that growing population is a major cause of air, water, and solid waste pollution. The world population was 2.52 billion in the year 1950, which increased to 6.06 billion in 2000 and is likely to reach 8.3 billion by the year 2030. While the population size will remain almost stationary in the economically developed part of the world, around 1.2 billion, during the same period population is likely to grow in the less developed regions. This is likely to pose challenges for the economic growth and pressure on environmental resources in the developing countries. Furthermore, most of the population growth in the developing countries is likely to be concentrated in the urban areas. This has implication for increased demand for energy and water resources in the urban areas. This will also pose challenges for the management of increased solid waste, air and water pollution. One of the striking experiences of the developing


2013 ◽  
Vol 4 (1) ◽  
pp. 83-96
Author(s):  
Vinnie Jauhari

As the world gets increasingly urbanised, there will be a consequence for energy generation, consumption and distribution. As the world population increases, there will be an increased demand for services- healthcare, transport, housing, infrastructure, information technology among others. The growing economies like India would have even greater challenges. The choice of forms of urbanization should needs to be assessed. What kind of cities would be sustainable is a question that needs more exploration? Walkability, compact housing, sustainable transport, alternate forms of energy generation are all aspects which need to be looked into. The paper focuses on what forms of urbanisation should India look at and how energy choices should be built in the planning process.


Author(s):  
O. Faroon ◽  
F. Al-Bagdadi ◽  
T. G. Snider ◽  
C. Titkemeyer

The lymphatic system is very important in the immunological activities of the body. Clinicians confirm the diagnosis of infectious diseases by palpating the involved cutaneous lymph node for changes in size, heat, and consistency. Clinical pathologists diagnose systemic diseases through biopsies of superficial lymph nodes. In many parts of the world the goat is considered as an important source of milk and meat products.The lymphatic system has been studied extensively. These studies lack precise information on the natural morphology of the lymph nodes and their vascular and cellular constituent. This is due to using improper technique for such studies. A few studies used the SEM, conducted by cutting the lymph node with a blade. The morphological data collected by this method are artificial and do not reflect the normal three dimensional surface of the examined area of the lymph node. SEM has been used to study the lymph vessels and lymph nodes of different animals. No information on the cutaneous lymph nodes of the goat has ever been collected using the scanning electron microscope.


Author(s):  
Punyaslok Sarkar ◽  
Debasish Dutta

This is a study of information technology within a company and how it works and its structure. In this case, it’s a airlines company called Air India and how IT helps in running the different flights around the world.


CCIT Journal ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 18-33
Author(s):  
Untung Rahardja ◽  
Meta Amalya Dewi ◽  
Fitri Lisnawati

Advances in information technology and communications which we achieve now actually been recognized and felt in the world of education in general. Currently College Prog implement a Tridharma terms Tridharma iDuHelp!. Tridharma is one of the basic responsibilities that students must be developed simultaneously and together. In this Tridharma still there are problems in the system iDuHelp! service. So IRAN (iLearning Prog Ask and News) in collaboration with iDuHelp! in providing answers and information needed by the student. In its application in Tridharma iDuHelp! IRAN There is a related method in it, such as iLearning methods that are currently being developed. With iLearning method can facilitate conduct research in detail, accurately, and clearly by using mindmapping. Besides the method of analysis is also done with three stages  namely the identification of the problem, identifying needs, and identifying system requirements. In this study using 4 literature reviews that can be used as references in preparing this paper. In this article explained about the problems that arise and solving problems in accurately using the flow Flowchart. In the implementation of the prototype shown iDuHelp! As well as the performance of Iran. So the end result of the study is a system performance to information and communication media of Iran can maximize iDuHelp! care system  It is widely integrated in a university.


CCIT Journal ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 138-148
Author(s):  
H. Abdul Hamid Arribathi ◽  
Dedeh Supriyanti ◽  
Lusyani Sunarya

Information technology is increasingly developing and has a positive impact on the world of education. The implementation of student counseling with a Knowledge Management System is one of the contributions of information technology in the world of education. Many benefits provided by the Student Counseling Knowledge Management System, in managing the knowledge needed by the counselor section to document student consultations. The development and implementation of a KMS counseling system costs more to employ professional staff to maintain and improve; KMS student counseling application; For this reason, it is necessary to design a Cloud Computing-based Student Counseling Knowledge Management System. The research method carried out in the first stage is to collect data and information about Knowledge Management and Student Counseling, and how to use it to create a Knowledge Management System Application, Student Counseling Based on cloud computing. Furthermore, conducting a literature study and literature review, system design is in the form of data architecture compounding, process design, network design, and user interface design. The design results of this system can facilitate educational institutions in conducting online cloud computing-based student counseling


Author(s):  
Emilie M. Hafner-Burton

In the last six decades, one of the most striking developments in international law is the emergence of a massive body of legal norms and procedures aimed at protecting human rights. In many countries, though, there is little relationship between international law and the actual protection of human rights on the ground. This book takes a fresh look at why it's been so hard for international law to have much impact in parts of the world where human rights are most at risk. The book argues that more progress is possible if human rights promoters work strategically with the group of states that have dedicated resources to human rights protection. These human rights “stewards” can focus their resources on places where the tangible benefits to human rights are greatest. Success will require setting priorities as well as engaging local stakeholders such as nongovernmental organizations and national human rights institutions. To date, promoters of international human rights law have relied too heavily on setting universal goals and procedures and not enough on assessing what actually works and setting priorities. This book illustrates how, with a different strategy, human rights stewards can make international law more effective and also safeguard human rights for more of the world population.


Author(s):  
Vu Kha Thap

Entering the XXI century and especially in the period of the industrial revolution has entered the era of IT with the knowledge economy in the trend of globalization. The 4.0 mankind development of ICT, especially the Internet has had a strong impact and make changes to all activities profound social life of every country in the world. Through surveys in six high School, interviewed 85 managers and teachers on the status of the management of information technology application in teaching, author of the article used the SWOT method to distribute surface strength, weaknesses, opportunities and challenges from which to export 7 management measures consistent with reality. 7 measures have been conducting trials and the results showed that 07 measures of necessary and feasible.


Sign in / Sign up

Export Citation Format

Share Document