Hasanuddin University Graduate School: Open Journal Systems
Not a member yet
907 research outputs found
Sort by
Behaviour of Optimized Honey Comb Beam Under Monotonic Loading
Get PDFHoney comb beam is a steel beam which has opening on its web. The advantage of this beam is to increase the bending capacity of the beam due to increasing of inertia moment and plastic moment of steel beam section. There are three important variables which determining the capacity of the honey comb beam, i.e. opening space, opening angle, and opening ratio of the honey comb beam. This paper presents the behavior of honey comb beam which has firstly been optimized and has been done by using fast multi swarm optimization (FMSO). In the previous research, there are two cases of optimization considered. First case is optimization of opening space and opening angle with certain opening ratio, while the second case is optimization of opening space, opening angle, and opening ratio. Based on FMSO, the result showed that the second case of optimization has a better result than first case of optimization. Therefore, in order to validate the result of FMSO, the finite element analysis was conducted to obtain the behavior of optimized section of honey comb beam using monotonic loading
Study on Comparative Advantage of Mining Sector in South Sulawesi Province, Indonesia
Get PDFMining sector is an important sector that contributes to regional development therefore, it has to be managed sustainably. This became basis of this study. Problem examined was comparative advantage of  mining toward South Sulawesi. This study used multidimensional scaling and input-output analysis. Those analyses used input-output table data of 2010 in classification of 11 economic sectors and GDRP of 24 districts/cities of South Sulawesi in 2012-2016 which was obtained from BPS (Central Bureau of Statistics) South Sulawesi. Results showed that final value of the mining sector in South Sulawesi was Rp9,007,814,000,000, describing role of mining sector as relatively small compared to other sectors. Shift share described economic growth of mining sector in Luwu Timur was faster than other districts. Export base (LQ) and shift share ere indicators that showed that Luwu Timur was superior to other districts. LQ value from Luwu Timur was 9.39 indicating that mining sector was self-sufficient and able to fulfill its need from its own production. Multidimensional scaling analysis in perceptual map showed that the mining sector in East Luwu had comparative advantage based on LQ and shift share. Perceptual Map showed that Luwu Timur was the district that held the largest role in mining sector in economy of South Sulawesi when compared to other. This role was due to existence of the operated largest nickel laterite mining company in Indonesia
Utilising Of Canary Shell As The Material Of Bio-Briquette
Get PDFThe current technological advances lead to ever increasing energy needs. One of the sources of energy that have a potential replacement for renewable sources of energy and economically is a bio-mass, such a briquettes. This study purpose to know the processes and stages of manufacture about briquettes from raw canary shell and coal, worth the calories, compressive strength as the rate of combustion. Canary shell crushed and coal, sifted, canary shell and coal then separated by size inside a bag of samples. Canary shell and coal mixed with tapioca flour and water, heated on the stove then mixed to flat, molded and pressed to make it more solid and then dried under the Sun. Making dough briquettes using a composition of 250 gr: 50 gr: 100 ml in comparison with 100%, 50%: 50%, 75%: 25%. Grain size was used in this study consist of 28 mesh, 65, mesh and 80 mesh. Test results from the compressive strength, strong value that it brings the most nice tap in 80 mesh 50: 50 comparison because the most powerful against the heavy pressure. As for the calorie value has the highest calorie content that is 100% canary briquettes 6,354 cal/gr with mesh size of 65
IDENTIFICATION OF PALU-KORO FAULT MECHANISM AND EARTHQUAKE HAZARD VULNERABILITY OF PALU AREA CENTRAL OF SULAWESI
Get PDFThe identification of the Palu-Koro Fault and earthquake hazard vulnerability study has been conducted based on multi-criteria analysis which is a recent innovation zonation method of earthquake hazard vulnerable areas. The study method used is a merging scientific discipline of geology and geophysics. Field data collection (acquisition), processing, data analysis and modeling in the laboratory using several seismic software became the main framework in this study. Earthquake hazard vulnerability maps contain several criteria related to factors affecting the vulnerability level in the study area to the earthquakes hazard. Acquisition of geological investigation including fault-slip at 19 points and historical of 30 earthquakes data were used to verified fault type or earthquake focal mechanism. Microtremor measurements were conducted at 350 points throughout at the Palu area to analyze the vulnerability of earthquake hazard in the study area. The earthquake focal mechanism analysis shows the type of fault that predominantly controls through the Palu area and its surroundings controlled by strike-slip or horizontal fault mechanism. The micro-zonation analysis shows that the value of the resonant frequency (fo) in the range of 0.307 to 14.668, amplification factor (A) in the range of 1.297 to 8.946, the predominant period (Tg) in the range of 0.068 to 3.257, seismic vulnerability (Kg) in the range of 0.36 to 231, 97. Based on the vulnerability classification level and earthquake hazard shows that no area is safe. Particularly the impact caused by an earthquake due to the activity of Palu-Koro Fault
THE POTENTIAL AND CHALLENGE OF HALAL FOODS IN JAPAN
Get PDFIn preparing for the Tokyo Olympic Games held in 2020, and in aiming to become a “Country Built on Tourismâ€, many travel facilities in Japan have started to provide halal foods and amenity goods, items that are permissible or lawful in Islamic law, Muslim prayer rooms, etc. in order to accommodate Muslim tourists. Many Japanese companies and municipalities are also interested in exporting their products from the Islamic area, and obtaining the certification of halal from some Islamic organizations. The process for acquiring halal certification is becoming complicated and expensive, so that many of companies and municipalities have abandoned it. There are about 110,000 Muslims in Japan. It is sometimes difficult for them to find halal foods and other goods, and the need for such items is typically addressed by a small halal industry. There is a “dualism†or lack of communication and collaboration between those organizations that are oriented to Muslim tourists and exports, and the small halal industries stated above. The present study also points out that many Japanese people mistakenly assume that halal foods are exclusively for Muslims. Halal foods, however, have potential for meeting the needs of non-Muslim Japanese consumers who are looking for safe and trustworthy foods
DOCUMENTATION OF INDIGENOUS KNOWLEDGE ON PRODUCTION AND POST-HARVEST MANAGEMENT OF SWEET POTATO IN THE BICOL REGION, PHILIPPINES
Get PDFSweet potato (locally known as kamote) is a major staple food of people in the Bicol Region who live in the upland areas. They have been growing this crop for so many years, providing some form of food security and income to their households. They have also developed sustainable farming system using indigenous knowledge which they have learned from their ancestors. With increasing attention being given to the sustainable farming system, there is a need to look into the indigenous knowledge and practices of the sweet potato farmers in the Bicol Region, Philippines had adopted through the years in the cultivation, production, and post-harvest management of sweet potato. Hence, his paper aimed to document the various indigenous production and post-harvest practices of the sweet potato farmers; evaluate the cultural, social, economic and environmental aspects/dimensions of these indigenous knowledge; discover the gender division of labor in the sweet potato cultivation, production and post-harvest management; and discover the science behind the indigenous knowledge. The study made used of varied social research methods such as sample survey, key-informants interview, focus group discussions and field observations. This study has proven that indigenous knowledge and practices to the sweet potato farmers cannot be underestimated in terms of enhancing the household and community food production and food security particularly in the upland rural areas of the Bicol Region. The indigenous knowledge of the people is very effective in meeting their food requirements, and effective in areas of land preparation, soil fertility enrichment, planting, pests management and weeding, harvesting and post-harvest management
BUILDING SUSTAINABLE AGRI-FOOD SYSTEMS UNDER THE DIVIDED WORLD
Get PDFAfter the UN adopted the Sustainable Development Goals (SDGs), many countries and various sectors have been inclined to be involved in the internalization of SDGs. The first two SDGs show a strong will of the international community to end extreme poverty and hunger, which are the most severe problems that the Millennium Development Goals had attempted to tackle for 15 years without achieving satisfactory results. Both problems are the basic necessities of sustainability. However, current global agri-food systems based on neo-liberalism thought are unlikely to address poverty and hunger deeply. On the contrary, the current mainstream agri-food system accelerates inequality between the rich and the poor. What mechanisms are working to create a divided world? What is required to change the situation? These questions are major concerns of this paper. The divided society cannot achieve sustainable development. Accordingly, the special topic of this paper is to explore alternative movements toward a connected world while reducing global disparities, which can initiate sustainable development. This paper focuses on the development of the concept of Sustainable Development, change in agri-food systems, and critical evaluation of multinational bio-related agribusinesses. After summarizing these topics, this paper highlights the Fairtrade movement as an alternative movement, in particular, and a comparative analysis of consumers’ awareness about buying behaviors in different countries. There are no any comparative researches about this topic. Based on the unique research, this paper concludes that the Fairtrade movement can help achieve the SDGs despite many challenges.Â
SOCIOECONOMIC DISPARITY AND POVERTY PROFILES IN OIL PRODUCING RURAL AREAS IN NIGERIA
Get PDFThis study examines the disparity in socioeconomic and poverty profiles of people in oil producing rural areas in Nigeria. The study involved a total of 446 respondents selected from fifteen rural communities in the Niger Delta region, where the bulk of Nigeria’s crude oil is produced. Inferences were based on the results from simple descriptive analysis involving percentages and cross tabulations. The results indicate a wide disparity in the socioeconomic characteristics and poverty profiles of people in the study areas. In particular, the results suggest poverty prevalence in oil producing rural areas particularly among farmers, fishermen and young people. The results also suggest an obvious impact of oil and gas extraction on agriculture and other traditional sources of livelihood in the rural areas. Thus, a reduction in environmental pollution would help to improve agriculture and other sources of livelihood of the rural people. The study also encourages government support and increased private sector investment in agriculture in the rural areas, while multinational oil companies are encouraged to promote agricultural development through increased financial support for rural farmers, training of the farmers and funding for agricultural research. In addition, the government and multinational oil companies are encouraged to guarantee efficient wealth distribution, provision of employment and sustainable human empowerment through viable skills acquisition programmes for young people in the rural areas
Defining the Root Cause of Jakarta MBA Students’ ComplaintUsing TQM Model of Academic Excellence
Get PDFIn the competitive world of education, many universities are competing to improve the quality of education services, employeeperformance, and produce graduates with integrity and professional skills. One of them is SBM ITB Jakarta. The purpose of thisstudy was to determine the root causes of the quality of MBA ITB Jakarta services by using a qualitative approach and “5C TQMof academic excellence” model as a guide to improve the quality of education services. While for the technique of collecting dataand analyzing qualitative data using interviews with respondents, the respondents in the study were university staff, lecturers, SBMITB Jakarta management, and students. The results of the study concluded that there absence of such a clear role from every unitinvolved (in this case, SBM ITB Jakarta staff, lecturers, and management) as the root cause of student complaints related to theservice quality of SBM ITB Jakarta. Miscommunication and misperception cannot be avoided because every unit has differentperceptions and expectations toward each other
Community Participation Arrangements to Prevent Illegal Drilling
Get PDFThe practice of illegal drilling does not only result in destruction for to the environment, but also result in the social gap, national losses, and people’s lives. It happens to illegal drilling conducted manually using traditional equipment and less operational standard. This illegal drilling may happen because ineffective law applied and no regulation on social participation in the Law of oil and natural gas. This research uses the normative method, the result of research is analyzed qualitatively. The research showed that the active social participation was needed in environmental law enforcement to prevent a great number of illegal drilling practice, the higher level of social participation in environmental law enforcement, and the smaller illegal drilling practice could be. Thus, there must be any act arranging for social participation in enforcing the environmental law arranged in the law No. 22 of 2001 because of those the local societies who get the direct effect of environmental destruction as a result of drilling of oil and natural gas illegally