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INDONESIA
Jurnal Matematika Sains dan Teknologi
Published by Universitas Terbuka
ISSN : 14111934     EISSN : 24429147     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Mathematics Other
Merupakan media informasi dan komunikasi para praktisi, peneliti, dan akademisi yang berkecimpung dan menaruh minat serta perhatian pada pengembangan Matematika, ilmu pengetahuan dan teknologi. Diterbitkan oleh Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Terbuka.
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue " Vol 8 No 1 (2007)" : 7 Documents clear
PROFIL VEGETASI PEKARANGAN DI DESA JABON MEKAR, KECAMATAN PARUNG, BOGOR Prasetyo, Budi
Jurnal Matematika Sains dan Teknologi Vol 8 No 1 (2007)
Publisher : LPPM Universitas Terbuka

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Abstract

Jabon Mekar village is well-known by people as the central of fruit producing at subdistrict of Parung. However it was estimated as a buffer zone of Jakarta and subject of the urban development. The aim of the research is to study the vegetation profile and the tree of model architecture at home-garden of community in the village of Jabon Mekar. The methods used for vegetation analysis were the quadrate method and the vegetation profile architecture method. The result of the vegetation profile at home-garden research shows that according to their formation of canopy coat, there were five stratums. Based on the vertical and horizontal of profile diagram, the dominant species of plants is Gnetum gnemon, with Fagerlind model of architecture; and the co-dominant species of plants is Musa sp., with Tomlinson model of architecture. The domination of these two trees of architecture models will give a limited chance of having an erotion process at the home-garden society.   
PENAPISAN AKTINOMISETES YANG BERSIFAT ANTAGONIS TERHADAP PENYAKIT LAYU BAKTERI TANAMAN CABE Winarni, Inggit; K, Elizabeth Novi
Jurnal Matematika Sains dan Teknologi Vol 8 No 1 (2007)
Publisher : LPPM Universitas Terbuka

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Ralstonia solanacearum can cause droop bacteria desease in chilli plants which resulted in productivity’s decreasing. Chemical subtances commonly used to eliminate the bacteria is costly and have negative effect on environment. This research aims to eliminate the varied actinomisetes and to get antagonistics actinomisetes towards the droop bacteria desease of chilli plants. The Botanical forest in Baturaden was chosen because has unique and high diversity microorganism that has characteristic antagonism that pressure growth of other antagonistic’s because of antimicrobe. A number of 18 actinomisetes isolat were successfully isolated and then rejuvenated based on morphology, colours, and shape of the colonies. A characterization of morphology trait towards target bacteria had also been conducted. Six of the 18 actinomisetes isolat have antagonist characteristics towards target bacteria’s growth. Isolat Btrd II.g and Btrd IV.l have the highest resistor activity as indicated by a 6 and 5 mm crystal clear zone. It indicated that actinomisetes isolat Btrd II.g and Btrd IV.l have relatively high antagonist characteristics. Btrd II.g and Btrd IV.l are potential to be used as an environmental friendly way to eliminate droop bacteria desease in chilli plants.
PERHITUNGAN INTEGRAL FUNGSI REAL MENGGUNAKAN TEKNIK RESIDU Warsito, Warsito
Jurnal Matematika Sains dan Teknologi Vol 8 No 1 (2007)
Publisher : LPPM Universitas Terbuka

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KONTRIBUSI INDUSTRI PENGOLAHAN HASIL PERIKANAN TRADISIONAL TERHADAP PENDAPATAN NELAYAN PENGOLAH Yuliana, Ernik; Indrawati, Endang; Farida, Idha
Jurnal Matematika Sains dan Teknologi Vol 8 No 1 (2007)
Publisher : LPPM Universitas Terbuka

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Abstract

Traditional fish processing industries in Muara Angke Jakarta have been involving many labor from the local fishermen or others. This study describes the contributions of many small industry to the labor incomes based on every small industry profit distribution. Survey method had been applied to collect the data. The population are all small traditional fish processing industries in Muara Angke. The samples are chosen based on their product, either salty fish or smoked fish. “Hayami method” was applied to calculate the added value of each small industry. The results of this study shows that salty squid has the highest value added (Rp2167,61/kg) and highest profits (Rp2072,61/kg), Indian mackerel smoked fish gives the highest contributions to labor incomes (Rp663,36/kg). Sardinella salty fish gives the highest profit level, followed by salty squid and salty mackerel scad. Salty stingray and salty Indian mackerel gives high value for labor return. In addition, salty sardinella, salty squid, and salty “lesi” fish have high added value ratio. Salty stingray gives the highest other input contribution, followed by smoked Indian mackerel.
PENGGUNAAN KRITERIA rcP PADA PEMILIHAN PEUBAH BEBAS TERBAIK JIKA TERDAPAT MULTIKOLINEARITAS Sugiarti, Harmi
Jurnal Matematika Sains dan Teknologi Vol 8 No 1 (2007)
Publisher : LPPM Universitas Terbuka

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Abstract

Some procedures can be used for selecting independent variables, one of them is the procedure of all possible regression with robust Cp (RCp) criterion. This statistic is not sensitive with multicollinearity in model and outlier residuals. The aim of this article is to investigate the use of RCp criterion in selecting independent variables. The result of the simulation experimental data shows that the RCp criterion fits enough to select independent variables. 
PEMANFAATAN IDEF0 UNTUK ANALISIS KINERJA SISTEM MANUFAKTUR (STUDI KASUS: THE ORDER HANDLING MANUFACTURING SYSTEMS) Budiarto, Slamet
Jurnal Matematika Sains dan Teknologi Vol 8 No 1 (2007)
Publisher : LPPM Universitas Terbuka

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Abstract

The IDEF0 (Integration Definition Language 0) developed by Douglas T.Ross and SoftTech.Inc is a procedure for modeling functionality as part of the Air Force programmed on computer-aided-manufacturing which based on SADT (Structured Analisys and Design Technique). Wang and Smith (1988) suggested that IDEF0 could be combined with SSM. IDEF0 is used to analysis manufacture systems, in this case OHMS. Data from research (Budiarto, 2005) on Division of General Engineering at PT.PAL use OHMS further analyzed in this study. Data analysis shows that IDEF0 can be used to mapping activity system, both at the global as well as detail views, and performance indicators for each detail activities can be developed trough IDEF0. In addition IDEF0 can be used as a tool in providing recommendation of performance improvement of manufacturing systems.   
STUDI STRUKTUR EPIDERMIS DAUN Dasymaschalon blumei Finet & Ganep. (Annonaceae) DI JAWA DAN SUMATERA Nurmawati, Subekti; Sulistiana, Susi
Jurnal Matematika Sains dan Teknologi Vol 8 No 1 (2007)
Publisher : LPPM Universitas Terbuka

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Abstract

Dasymaschalon blumei Finet & Gagnep. Is one of the species from the genus Dasymaschalon (Hook. F & Thomson) Dalla Torre & Harms which can be recognized from its peculiar moniliform fruits. It widespread in Java and Sumatera. An anatomical of leaves from herbarium specimens of D. blumei collected from Java and Sumatera has been carried out by using light microscope in Herbarium Bogoriense. The objectives of this study is to observe the leaves anatomy of D. blumei and to support the classification of  the species concept of D. blumei.  The specimens are divided into three categories based on the elevation, those were: specimens collected from < 50 m; 250 – 500 m,; and > 500 m of sea level. The result showed that from the epidermal section, the type of the stomata from the three categories were similar, and also the number and the index of the stomata. Variations however exists because of the environment factors. 

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