13 research outputs found
PERHITUNGAN LAJU ALIR PENDINGIN AIR SISI PRIMER PADA UNTAI UJI BETA UNTUK EKSPERIMEN SISTEM PASIF
No full textPERHITUNGAN LAJU ALIR PENDINGIN AIR SISI PRIMER PADA UNTAI UJI BETA UNTUK EKSPERIMEN SISTEM PASIF. Kecelakaan Boiling Water Reactor (BWR) di Fukushima Jepang, menunjukkan kegagalan sistem keselamatan reaktor dalam mengantisipasi bencana besar gempa bumi dan tsunami dan menyebabkan terjadinya SBO (Station Black Out). Peranan sistem keselamatan pasif untuk diterapkan pada desain reaktor nuklir yang menggunakan metode sirkulasi alami dalam meningkatkan keselamatan adalah fokus pada makalah ini. Untuk mempelajari sistempasif sebagai sistem keselamatan dilakukan eksperimen pada fasilitas sistem pasif BETA dengan tujuan untuk mengetahui laju aliran massa air pada sistem pasif dengan air sebagai fluida kerjanya. Eksperimen dilakukan dengan memvariasikan temperatur pada heater dengan variasi temperatur 85 ̊C. Dari hasil eksperimen dan perhitungan korelasi diperoleh laju aliran massa air dengan variasi temperatur 85 ̊C adalah 4,8606 x 10-7 kg/detik
Sebaran Pohon Penghasil Buah-buahan di Hutan Larangan Adat Kenegerian Rumbio Kecamatan Kampar Kabupaten Kampar Provinsi Riau
No full textThe Forest Reserve of Kenegerian Rumbio has various types of forest fruit plants that can be consumed, both the visitors and the community around the forest. The existence of forest fruits trees in the Forest Reserve of Kenegerian Rumbio has not been identified with certainty. This study aims to determine the number and distribution patterns of the fruit-producing trees in Panoghan zone and Sialang Layang zone of the Forest Reserve of Kenegerian Rumbio. This research was conducted by using the method of track/transect with a width of 20 meters and a length of 500 meters. The transect position in the field was determined by using Purposive Sampling technique. Based on observations from eight transects, 19 species of fruit-producing trees with the number of individuals 147 fruitproducing trees were found, which each transect has different individual number. Distribution patterns of the fruit-producing trees in the Forest Reserve of Kenegerian Rumbio were clumped with the value of Morisita Index in Panoghan zone is 1.35 and in the Sialang Layang zone is 1.13
Participation Of Community In Managing Tourism Object Guruh Gemurai Waterfall In Desa Kasang Kecamatan Kuantan Mudik Kabupaten Kuantan Singingi
No full textSince 2008, tourism department Kuantan Singingi district has let to the local community to manage the Guruh Gemurai waterfall in Desa Kasang Kecamatan Kuantan Mudik Kabupaten Kuantan Singingi. As long as, the local community in managing of the Guruh Gemurai waterfall is not run well. Because of that, the purpose of this research is to find out participation level among people in the community in manage Guruh Gemurai waterfall and to find out the relationship between the condition of economic, social, and culture of the people and participation level. The method of this reseach is Random Sampling. To know the level of participation is used Likert Scale and to know the correlation between participation with social economic and culture is used Chi Square analysis. The result of this study showed the level of community participation in handling Guruh Gemurai waterfall is middle level it is 67,5 %. This case couse, local community just handling in planning and running out. there was a conflict between the local community with tourism department, the characteristic of local community is farmer. Economic, social, and culture factor which have effect to participation level are action in group work tourism, side job and side income in the waterfall area. Social economic factor which don't have effect are education level, duration of recidence around location, number of family member, distance between home and tourism area, knowledge about history of the waterfall, participation in county management, potency of art and culture, main job and main income
Potensi Serapan Karbondioksida (Co2) pada Pohon Peneduh di Jalan Soekarno Hatta Kota Pekanbaru
No full textGlobal warming become a hot issue in recent years, a source and cause of global climate change is the amount of carbon dioxide emissions produced by fossil fuels used motor vehicles and some of the industry to run the engine. One solution that is appropriate in reducing carbon emissions is the availability of green open space around the road traffic. This research intend to discover the potential uptake of carbon dioxide and some plant species potentially absorb carbon dioxide in the shade trees at Soekarno Hatta Pekanbaru street. This research using purposive sampling method to determine the sample leaves on plants. The trees sampled is the most dominant tree on the green line at Soekarno Hatta Pekanbaru street. The tree used in this research as many as 27 trees, ie 9 angsana (Pterocarpus indicus Willd.), 9 mahogany (Swietenia macrophylla King.) and 9 eucalyptus (Melaleuca leucadendron L.). The results show angsana has potential of carbon dioxide absorption highest than mahogany and eucalyptus at Soekarno Hatta Pekanbaru street
Retensi dan Penetrasi Ekstrak Biji Pinang (Areca Catechu L.) sebagai Bahan Pengawet Nabati Kayu Mahang (Macaranga Gigantea Mull. Arg.)
No full textThis research aimed to determine the concentration of preservative use of betel nut Areca catechu L. extract is best based preserpative retention and penetration of the highest in the stem (tip, middle and butt) mahang wood. The research used method completely randomized design (CRD) arranged factorially with 2 (two) factors. The first factor is the concentration of the curing agent (B) consist of three 3 (three) level, namely B1 (20% concentration), B2 (25% concentration) and B3 (30% concentration). The second factor is the wooden rod (C) consist of 3 (three) level, namely C1 (butt), C2 (middle of timber) and C3 (wood tip). Concentration of plant extract preservative us Areca catechu L. is best based preservative highest retention was 30% at tip (18,33 kg/m3), middle (16,03 kg/m3) and butt (15,55 kg/m3), whereas the concentration of plant extract preservative us betel nut Areca catechu L. is best based preservative highest penetration was 30% at tip (63,76%), middle (53,93%) and butt (50,06%) mahang wood
Pertumbuhan Juvenil Labi-labi (Amyda Cartilaginea) Berdasarkan Uji Coba Preferensi Pakan di Penangkaran PT. Arara Abadi, Kabupaten Siak.
No full textTrionychia (Amyda cartilaginea) was a species that categorized in Appendix II of CITES and vulnerable or risky in IUCN Red List Data Book. Captivity was one way to support the conservation efforts of these animals and it germplasm.Captivity done to maintain endangered animals like Trionychia.This research aims to measure level of consumption and preference feed of juveniles Trionychia on some type of feed given on captivityof PT. Arara Abadi, Siak. Method of collecting data used was observation,whichconducted through direct observation of objects to be researched.Feed which tested in feed preference were cork fish saplings, shrimp saplings, cassava and kale that was given to 15 juvenilesfeed trial and measured the consumption level of feed and growth. The resultofthis research indicatelevel ofthe highestshrimpsaplings consumptionduring the research were 56,424g. First preference feedofshrimp saplings were 0,37g, cassava 0,34gandcork fish saplings 0,27g.Growth of juvenil trial for fiveweeks was 0,1 g/tail/day
Strategi Pemberdayaan Masyarakat dalam Penanggulangan Kebakaran Hutan dan Lahan di Kabupaten Rokan Hilir
No full textThis research aimed to determine the socio-economic conditions of people who become the root causes of forest fires and field, obtain information efforts to control forest fires and land that has been done by the public and develop appropriate strategies to empower communities in the implementation of the prevention of forest fires in Rokan Hilir. This research is descriptive. The collection of data on community empowerment strategies in the prevention of forest fires and field with interviews and direct observations. The analysis used in this study is a descriptive analysis using analytical techniques and percentage SWOT analysis. The social conditions that influence the occurrence of forest and field fires in Rokan Hilir is the level of the majority of people who are not in school and worked as a farmer clearing by culture and economic situation of people who lands <2 hectare burning education. Forest fire prevention efforts undertaken by the field is public worked together to set fire using simple tools and semi-mechanical tools. Community empowerment strategies for the prevention of forest fires and land is established good cooperation among agencies, improve people skills, develop types of horticultural crops pineapple, using their areas, the government socialize penalty facilitate the heavy equipment and additional suppression of forest fires and strict enforcement tools
Estimation of Carbon Potential Above the Ground at the Stand Level Poles and Trees in Forest City Pekanbaru
No full textThe process of increasing temperature in the atmosphere or global warming is a climate change that has always been environmental problems. Related to the phenomenon of climate change, plants have an important role because it can absorb and store carbon as biomass through sequestration mechanism. Pekanbaru is a tropical city and it has temperature is high. The forest city areas as a green open space has a very large role in lowering the air temperature and tackling global warming. This research aimed to estimate the magnitude of the potential of biomass carbon in the area of forest city in Pekanbaru. The result of this research is expected data the magnitude of potential carbon content above ground level on the forest. This research only measured the carbon content above ground level of poles and tree stands. Measures of conducted the measurement of Diameter Breast Height (DBH) and the identification of tree species. The results showed the magnitude of the potential of biomass carbon in the areas of forest city in Pekanbaru is 59.929 tons / ha or 366.166 tons when extrapolated to the total area of forest city Pekanbaru is 6.11 ha
Identifikasi Jenis Kayu dalam Pembuatan Keramba Berdasarkan Persepsi Masyarakat di Desa Buluh Cina Kecamatan Siak Hulu Kabupaten Kampar Provinsi Riau
No full textKeramba is an alternative support of economy on society, so wood as the basic material need to be preserved. The purpose of this research to identify the species and criteria of wood which can be used on manufacturing keramba, based on public perception in Buluh Cina village. The method used on this research is purposivesampling. The analysis of the data used descriptive quantitative by interviewed local community in buluh Cina village. Resultof the research showed that the species of wood used as basic material is, Cantleya corniculata Howard), Gluta rengas L, Dillenia grandifolia, Shorea Spp, Koompassia malaccensis. The criteria used for basicwood as keramba material is the diameter of tree 40-60 cm, high 15-20 m, length 2-4 m, and the level of wood alignment is 90-100 %
Relevansi Adat Tikah Kawitn Suku Dayak Barai Kecamatan Kayan Hilir Bagi Perkawinan Gereja Katolik
No full textThis paper deals with a marriage ritual of the Dayak Barai tribe, known as Tikah Kawitn. The purpose of this paper is to explore the local wisdom and values behind the marriage customs of the Dayak Barai tribe and to find their relevance for appreciating and living the values of Catholic marriage. This paper uses the Interpretative Phenomenological Analysis (IPA) method. The author finds that the Dayak Barai tribe values the nobility of traditional marriages. It can be seen in pre-wedding rituals and marriage ceremonies designed with symbolic actions. The Tikah Kawitn ritual also contains the essential values of marriage as taught by the Catholic Church, namely monogamy, not being divorced, directed at heredity, and the welfare of the household. The author concludes that the values of the traditional marriage of the Dayak Barai tribe, tikah kawitn, can contribute to the process of deepening and appreciating the nobility of the Catholic Church's marriage, especially for the Dayak Barai tribe who are Catholic
