The Cycloop mountains in Papua are a nature reserve conservation area that has diverse geology, biology and culture. This paper discusses the prospects of geotourism in Cycloop mountains based on a method of analyzing...
The Cycloop mountains in Papua are a nature reserve conservation area that has diverse geology, biology and culture. This paper discusses the prospects of geotourism in Cycloop mountains based on a method of analyzing the community acceptability and tourists preferences, likewise the geosite attraction and geotourism sustainability. The results of analysis indicates that a) village communities in surrounding conservation area accept and wish to get involved in natural activities; b) local tourists are very dominant and motivated on outdoor recreation in groups; c) identified geosites has classified as from Quite Interesting to Interesting based on the index of attractiveness; and d) geotourism activity in the mountains Cycloop is categorized Quite Sustainable reviewed from the environment, society, economy and governance dimension. The exploration and the geological conservation to be the reliable activities in organizing the geotourism. Geotourism is likely to be applied to the conservation area as a form of implementation of the sustainable tourism concept.
Concrete is a construction material that is extensively used to build various Infrastructures. The increasing of basic human facilities and the resulting Infrastructures in increasing needs of concrete and cement conc...
Concrete is a construction material that is extensively used to build various Infrastructures. The increasing of basic human facilities and the resulting Infrastructures in increasing needs of concrete and cement concrete as the material forming. Many problems in the concrete producing industry are not sustainable. Because of concrete production uses enormous natural resources and the main binding material in concrete is cement. Cement is the result of calcination of lime roomates in the process results in the release of carbon dioxide (CO2). To mitigate this problem and for sustainability concrete, many researches have been done to find a replacement for cement. Geopolymer concrete is an alternative to reduce part of cement. Ground Granulated Blast Furnace Slag (GGBFS) that consist of silica and alumina can be used as a binder to replace part of the Portland Composite Cement (PCC). In this study, concrete compressive strength tests were carried out on 48 specimens of concrete cylinder 15x30 cm. The ratio of substitution GGBFS/PCC used were 0/100, 40/60, 50/50 and 60/40. The specimens were cured at room temperature then tested at the age of 7, 14, 21 and 28 days. The results show that the average compressive strength of concrete at the age of 28 days that GGBFS/PCC ratio of 0/100, 40/60, 50/50 and 60/40 were 26.50, 23.01, 26.65 and 22.56 MPa, respectively. Based on the analysis, 50% substitution of GGBFS can be used to partially replace cement because has the same as normal compressive strength of concrete and can be classified as environmentally friendly or green concrete.
The 26 December 2004 disaster caused enormous casualties and damages in affected regions. Indonesia suffered a loss of 42.7 trillion Rupiah. On the other hand, this disaster has raised awareness among some people to c...
The 26 December 2004 disaster caused enormous casualties and damages in affected regions. Indonesia suffered a loss of 42.7 trillion Rupiah. On the other hand, this disaster has raised awareness among some people to carry out construction following engineering principles, so that the newly constructed buildings have an adequate level of safety. A hard/dense soil layer has a close relationship with the safety level of a building. This paper proposes a map of the depth of hard/dense (stable) layer at one of the worst affected cities, i.e., Banda Aceh (Indonesia) of the boxing day 2004 disaster. A static cone penetration test (CPT) was employed to determine the depth of stable soil. The data from the 35 cone penetration tests were used to develop the zoning map of the depth of the stable soil in the study location. The dominant hard/dense soil depth in the study location is > 10 meters below the existing ground level. In certain places, such as the areas around Lambung, Neusu Aceh, Lambaro Skep, Jeulingke, Doi, Kopelma Darussalam, and Lamjame, the depth of stable soil is from 5 to 10 meters.
With establishment of fracture toughness test for advance ceramic according ISO/FDIS 23146:2008(E) with the sample test of Single-edge V-Notch Beam/SEVNB, then the researcher related this activity should understand an...
With establishment of fracture toughness test for advance ceramic according ISO/FDIS 23146:2008(E) with the sample test of Single-edge V-Notch Beam/SEVNB, then the researcher related this activity should understand and able to realize how to prepare the sample of advance ceramic in order the requirements of the standard are fulfilled. In contrary with metals and polymers that usually easy to cut as the standard size for testing, the advance ceramics are found much more difficult to prepare since it is very hard and brittles. More even, specifically for fracture toughness test, the level of difficulty is added since the sharp initial crack should be introduced in the edge of the sample. This article introduce method on preparation of advance ceramic for the purpose of fracture toughness test completed with method to introduce the initial sharp V-notch crack which is valid and possible to be measured its length and diameter of the tip that yield valid result of fracture toughness test.
Agriculture involves more than just increasing production. For the agricultural sector to be stimulated, a substantial number of agroindustries must be developed. The demand for raw materials will rise due to the agro...
Agriculture involves more than just increasing production. For the agricultural sector to be stimulated, a substantial number of agroindustries must be developed. The demand for raw materials will rise due to the agroindustries, resulting in favourable selling prices for farmers. Farmers will be inspired to raise the quality and quantity of their products to satisfy market demands and industry standards. On the other hand, sustainability has become a concern in agriculture and the food supply chain. The new concept of a circular economy and a green supply chain offers a production and consumption model that lengthens the life cycle of agricultural products and reduces waste. This paper examines and offers recommendations for advanced digital technologies utilization in the Agroindustry 4.0/5.0 to establish a sustainable supply chain and a circular economy.
Handling of flooding caused by changes in land use often causes changes and problems in the magnitude of runoff coefficient, discharge, water level, and drainage channel dimensions, as happened in Samarinda Seberang. ...
Handling of flooding caused by changes in land use often causes changes and problems in the magnitude of runoff coefficient, discharge, water level, and drainage channel dimensions, as happened in Samarinda Seberang. The purpose of this study was to plan a drainage channel according to the priority scale using the Rational Modification Method as a Hydrological Analysis and Manning as a Hydraulics Analysis. Handling method is carried out in the form of structuring and planning the drainage system according to priority scale based on inundation parameters, economic studies, social and transportation disturbances, loss of housing areas, and property rights. The higher the criteria for handling the area is a priority. The results showed that the highest priority scale (610) was obtained on Cipto Mangunkusumo street, and the lowest priority scale (220) was at Bung Tomo street and Hasanuddin street. Cipto Mangunkusumo street as the highest priority scale will be planned for the first priority drainage channel with a design flood discharge in the 10 year return period (Q) 7.79 m3 / sec, the drainage channel dimension consists of the basic width of the channel (b) 0.77 m ∼ 0.80 m, channel peak width (T) 3.30 m, channel depth (h) 1.925 m, watch height (f) 0.6 m, total depth 2.52 m, and slope of channel wall (m) 1: 1).
The community is a major component and has an important role in tourism development. The community is required to be able to open up to tourists, and it is to develop themselves with all their potential so that touris...
The community is a major component and has an important role in tourism development. The community is required to be able to open up to tourists, and it is to develop themselves with all their potential so that tourism development can be implemented through the encouragement of good institutional capacity of the community, and ultimately through the development of tourism, the community will feel the benefits as a means of improving their economy and quality of life. Therefore, in the tourism area, smart people are needed who can see and utilize every potential and opportunity. This study aims to describe the strategy of creating smart people in the Tongke-Tongke Mangrove forest tourism area, Kab. Sinjai in supporting tourism development. The research was conducted using qualitative descriptive analysis by strengthening observation, interviews, and documentation studies. The results showed that to create smart people in tourism areas, several strategic steps were needed, namely (1) Community involvement in the formulation of tourism development policies, (2) Development of an internet-based area as a medium for communication in business development (3) Assisting production activities and marketing-supported by the existence of a tourism industrial area, (4) Increasing human resources through the empowerment of potential educational backgrounds as well as development, coaching, and training, (5) Fostering the socio-cultural character of the community as capital in their involvement in tourism development. By using these strategies, a smart community will be created and can support the government in developing tourism as part of regional planning and development.
The availability of water for irrigation has been decreasing and the need for other sectors has been increasing rapidly over the time. Whereas, there are also several environmental damages due to the serious exploitat...
The availability of water for irrigation has been decreasing and the need for other sectors has been increasing rapidly over the time. Whereas, there are also several environmental damages due to the serious exploitation of natural resources in many places. This situation causes the irrigation system has to be managed efficiently and effectively. In irrigation modernization, the implementation of intermittent irrigation is the right choice, because it is a water-saving irrigation technology. The model operation of intermittent irrigation operation that is built is a calculation model to determine the interval of irrigation water provision and the amount of irrigation water, which begins with the planning of the cropping pattern. The irrigation operation management model with intervals of providing irrigation water for 3 days developed in the Cihea Irrigation Area, Cianjur Regency has an influence on irrigation performance. The paddy planting season in Cihea, Cianjur Regency with intermittent irrigation operation, was able to achieve irrigation water productivity values > 0.8-1.0 kg / m3 (advanced stage in modern irrigation management).
An essential aspect in the sustainable design of breakwater is the determination of the design wave condition. It is predicted by utilizing severe wave conditions of the past 10 to 20 years. The tourism harbor at east...
An essential aspect in the sustainable design of breakwater is the determination of the design wave condition. It is predicted by utilizing severe wave conditions of the past 10 to 20 years. The tourism harbor at eastern Bali, Indonesia, is located where extreme wave condition occurs. Therefore, this research studies the wave height before and after constructing a breakwater in the harbor area. The wave height was simulated using numerical modeling. The methodology was performed by using the coastal modeling software of the SMS-CGWAVE model. The result shows the highest design wave height value of 3.9 m in the direction from the southeast. The design breakwater can reduce wave height up to 0.9 m or a 75.5% reduction. Further study is needed to simulate the extension of breakwater length to meet the criterion design of wave height in the harbor basin.
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