Garuda - Garba Rujukan Digital

All

Widyariset

widyariset
Website

Published by Pusbindiklat Peneliti LIPI

ISSN : - EISSN : 24610976 DOI : 10.14203

Aerospace Engineering Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics

Widyariset is a scientific journal which publishes the results of research and development, assessment, and systematic thinking about Natural Science.

Arjuna Subject : Umum - Umum

Articles 17 Documents

1 2

Search results for , issue "Vol 16, No 2 (2013): Widyariset" : 17 Documents clear

PRODUCTIVITY EVALUATION OF RICE PROMISING LINES IN ORANSBARI DISTRICT, MANOKWARI REGENCY Fransiska Renita Anon Basundari; Abdul Wahid Rauf
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

Currently, the average of rice productivity in Manokwari only reached 4.3 ton ha-1. The rice varieties commonly planted in Manokwari are Ciherang, Mekongga, and Cigeulis, with the average productivity for each variety 3.87 ton ha-1, 4.01 t ha-1, and 4.11 t ha-1. The objective of the experiment was to obtain promising lines of rice which have high productivity (higher than 20%) of the current situation in Manokwari. The research was conducted in the District of Oransbari, Manokwari, West Papua in February until November 2010. It was arranged in Randomized Block Design, using four promising lines (RUTTST96B-15-1-2-2-2-1, BPT164C-68-7-3-2, RUTTSG-69-1B-1-1-3-2-1, IR71146-122-1-1-2) and four varieties of rice (Ciherang, IR64, Tukad Unda, and Memberamo) as a treatment, with three replications. The parameters observed include plant height, panicle number/clump, panicle length, yield, and the amount of filled grain. From the analysis, there were two promising lines namely BPT164C-68-7-3-2 and RUTTSG-96B-15-1-2-2-2-1. It showed the increasing of productivity about 36.27% and 52.09% from the current situation in Manokwari, and might be evaluated to be further developed in Oransbari District, Manokwari Regency.

THE EFFECT OF SANITATION LEVEL AND STALL MANAGEMENT SYSTEM TO SUPPRESS COCCCIDIOSIS CASES IN BALI CALVES (Case Study at Musi Village, Gerokgak District of Buleleng Regency) I Putu Agus Kertawirawan
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

This study was aimed to determine the effect of maintenance model to the incidence of coccidiosis desease in Bali calves at Musi Village, Gerokgak sub district of Buleleng Regency. The study involved 42 Bali cattle which consisted of 21 cows and 21 calves of Bali cattle. Those animal stall were divided into 3 groups of P0, P1 and P2. P0 groups did not adopt a healthy stall structure or termed as traditional rearing, with poor sanitation. P1 adopted a stall structure with a healthy level of sewage treatment plants with less sanitation. P2 groups adopted stall structures and sewage treatment plants healthy with good sanitation. Observed variables were the number of coccidiosis cases in calves of each group. Result showed that the case of calf coccidiosis in order from the highest incidence was 85.71%; 57.14% and 0% at the P0, P1 and P2 groups, respectively. This study indicates that good stall management suppresses the case of bovine calf coccidiosis in Bali cattle.

SOME POPULATION PARAMETERS OF BALI SARDINE (Sardinella lemuru) IN BALI STRAIT WATERS Arief Wujdi
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

Purse seine was introduced at 1972 in Bali Strait and since then Bali sardine fish (Sardinella lemuru) are the most widely exploited by fishermen in these waters. One of the largest landing site of Bali Strait purse seiner is in Muncar, East Java. This study aims to estimate population parameters of Bali Strait oil sardine that were caught by purse seine in Muncar. Data were collected from August 2010 to December 2011, and were analyzed using FISAT II (version 1.1.3). The results showed growth parameters were L∞ = 20.75 cmFL; K=1.20 year-1 and t0=0.1456 year. The results of Z=6.39 year-1; M=1.78 year-1; F=4.61 year-1; and E=0.65. The exploitation rate in this study was greater than the optimum exploitation (Eopt), indicating an overfishing had occurred. The recruitment pattern of Bali sardine had two peaks a year, in February and July, where the recruitment in July was greater than February.

COMMUNITY STRUCTURE OF MACROZOOBENTHOS IN SOUTH BIAK WATERS, BIAK, PAPUA Andriani Widyastuti
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

The existence of macrozoobenthos in an coastal waters, can be used as indicators the physical quality of water. The aim of this study is to analyze the diversity and community structure of macrozoobenthos in coastal waters of South Biak waters. Research was conducted in Maret-Nopember 2011, in the coastal waters of South Biak. Sampling using a transect quadrant. Macrozoobenthos samples was preserve in formalin solution 10% and was identified in the laboratory. The value of diversity, similarity and dominance will be calculated from the data, and its relationship with environmental factors. The results was found 101 species by 3572 the number of individuals who are scattered in four stations (Paray, Ambroben, Yenures, and Sorido stations). Makrozoobenthos types were found consisting of four phyla (Annelida, Arthropoda, Echinodermata and Mollusca) derived from 8 classes of Polichaeta, crustaceans, Ophiuroidea, Echinodermata, Holothuroidea, Amphineura, Gastropoda and Bivalves. Value index of diversity (H ‘) ranged between 1, 1354 to 2.8011, Paray and Sorido waters are not polluted waters, and waters Ambroben and Yenures is being polluted waters. Uniformity value (E) ranged from 0.3407 to 0.7666, indicating the existence of species that dominate (approaching 0) and shows the uniformity of all types in the population (approaching 1).

CLINICAL STUDY OF JAMU FORMULA FOR GENU OSTEOARTHRITIS Danang Ardiyanto; Sunu Pamadyo T. Ismoyo
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

The uses of conventional drug for osteoarthritis treatment has been shown to give serious side effects. The use of jamu as a natural product for treatment of osteoarthritis needs a scientific evidence especially efficacy and safety evidence. This research is a quasi experiment pre post test design study that was conducted at Klinik Saintifikasi Jamu B2P2TOOT from March until December 2011. The giving of jamu formula that which consisted of 15 gram temulawak rhizome (Curcuma xanthorrhiza), 7 gram meniran herb (Phylanthus niruri), 15 gram kunyit rhizome (Curcuma domestica), 5 gram adas seed (Foeniculum vulgare), 5 gram rumput bolong herb (Equisetum debile), and 5 gram kumis kucing leaves (Orthosiphon stamineus) for2 months could improve clinical symptoms such as joint paint, swollen joints, movement disorders and tingling. Objectively the jamu formula decresed the joint paint with measurements of visual analogue scale. This formula in terms of safety did not interfere with liver and kidney function.

VIRULENCE STATUS OF Phytophthora infestans (Mont.) de Bary IN WEST JAVA TO POTATO PLANTS THAT CONTAIN RB GENE Hani Susanti; Rizkita Rachmi Esyanti; Eri Sofiari
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

Phytophthora infestans (Mont.) de Bary causes late blight (LB) disease which can decrease potato (Solanum tuberosum L.) production up to 100%. RB gene as source of resistance to LB could be obtained from genetically modified potato cultivars with resistance genes from wild species Solanum bulbocastanum. Evaluation virulences of P. infestans to potato contain RB gene is an important step to know effectiveness of controlling this disease. The research was focussed on determining virulence status of the isolates to the transgenic and hybrid potato plants containing RB genes. Isolates were collected from Bandung, Cianjur, and Garut, were cultured on V8-agar medium at 18 ± 20C. Virulence test were performed using “detached leaves assay” method. Based on statistic analysis, the average leaf infected by LB in potatoes containing the RB gene was significantly lower than potatoes in control group. Results showed that 40,8% transgenic leaves and 54,5% hybrid leaves which containing RB gene attacked by LB , whereas the control group was infected 98,7%. The virulence level of P. infestans isolates from West Java on potato plants contain RB gene is still low compare to that in the control group.

PROPERTIES OF BINDERLESS PARTICLEBOARDS FROM OIL PALM EMPTY FRUIT BUNCH (Elaeis guineensis Jacq.) Ratri Yuli Lestari
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

The objective of this investigation was to evaluate the properties of binderless particleboard from oil palm empty fruit bunches (OPEFB). The pretreatment was boiling in water for 60 minutes and then dried. The dried OPEFB was shredded into fibers and cut into particles (1–5 cm and 6-10 cm). The particles were formed on alluminium foil and then pressed at temperature of 150°C for 10 minutes using pressure of 25 kgf/cm2, 30 kgf/cm2, and 35 kgf/cm2. Particleboard samples were made with a target density of 0.7 g/cm3. The value of density, moisture content, modulus of rupture (MOR), and modulus of elasticity (MOE) were determined based on Japan Industrial Standard (JIS) A 5908: 2003. The particleboards density were 0.566~0.636g/cm3 and the moisture content were 5.17~7.13%. The highest value of MOR and MOE were 2.52 N/mm2 and 223.29 N/mm2. It’s from particleboards with the particle size of 6-10 cm and the pressure of 35 kgf/cm2. The physical properties of particleboards were met the JIS standards while the mechanical properties were not met the standard.

SPEAKER IDENTIFICATION USING HYBRID MODEL OF PROBABILISTIC NEURAL NETWORK AND FUZZY C-MEANS Vicky Zilvan; Agus Buono; Sri Nurdiati
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

A hybrid model of Probabilistic Neural Network and Fuzzy C-Means has been developed. The model has been applied using Mel Frequency Cepstrum Coefficients (MFCC) as feature extraction for identification. In addition to the natural voice, the effect of noise has also been taken into account. It has been shown that the model has good accuracy at 96% for voice without noise, 85.5% for voice with noise at the level of signal to noise ratio 30, and 60% for voice with noise at the level of signal to noise ratio 20. It has also been concluded that the clustering procedure using Fuzzy C-Means could improve the accuracy up to 96% for large number of training data.

PERFORMANCE TEST OF DUAL FUEL ENGINE USINGETHANOL DIESEL Yanuandri Putrasari; Arifin Nur; Aam Muharam
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

Diesel engine is a high thermal-efficient of internal combustion engine. However, the application of diesel engine still depended on fossil fuel. This fuel has limited availability and the effect are also very dangerous especially its emission. Ethanol was used as an alternative fuel to replace fossil based of diesel fuel. The purpose of this work is to explore the performance of the dual fuel engine–ethanol diesel. The performance test was carried out by running the indirect injection engine that modified to direct injection on 1,500 rpm using four types of fuel i.e. diesel fuel, diesel mixed with ethanol2.,5%, 5%, and 10%. The results show that there was an increasing effect of engi inindicated mean effective pressure (IMEP) value and brake specific fuel consumption (bSFC) reduction when the engine was operated using ethanol diesel fuel blends. The emission of hydrocarbon (HC) tends to increase, while the emission of smoke and carbon monoxide (CO) were decreased when the engine was operated using dual fuel–ethanol diesel.

PERFORMANCE PROMISING LINES OF MAIZE ON DRY ACID SOIL IN DISTRICT OF TALAWI, SAWAHLUNTO Sumilah Sumilah; Atman Atman
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

Maize development is potential in West Sumatera. Maize is strategic commodity, because related to subsector development (feed) and other sector (food and feed industry). The aim of this research was to obtain maize promising lines capable to well adapt in dry acid soil, with pH <5. Research was conducted in farmer cultivation of district of Talawi, Sawahlunto, begin in September to December 2010 at dry acid soil (pH 4,57), using 12 promising lines from Balit Sereal Maros such as GH-1, GH-2, GH-3, GH-4, GH-5, GH-6, GH-7, GH-8, GH-9, GH-10, GH-11, GH-12, and one existing variety as control. The experimental design was a Randomized Completely Block Design (RCBD) with three replications. Land processed perfectly of the size map each 4x6 m. Distance plant 80x15 cm. The packages of fertilizers for maize are 300 kg urea+150 kg SP-36+50 kg KCl per hectare. The observation of the studies were plant growth yield component and yield. The result obtained two maize promising lines (GH-1 and GH-3) capable to produce dry pods yield approximately 4,5 tons/ha and 4,2 tons/ha at dry acid dry soil in Sawahlunto (pH<5).

Page 1 of 2 | Total Record : 17

1 2

Filter by Year

2013 2013

Filter By Issues

All Issue Vol 8, No 1 (2022): Widyariset Vol 6, No 2 (2020): Widyariset Vol 6, No 1 (2020): Widyariset Vol 5, No 2 (2019): Widyariset Vol 5, No 1 (2019): Widyariset Vol 4, No 2 (2018): Widyariset Vol 4, No 1 (2018): Widyariset Vol 3, No 2 (2017): Widyariset Vol 3, No 1 (2017): Widyariset Vol 2, No 2 (2016): Widyariset Vol 2, No 1 (2016): Widyariset Vol 18, No 2 (2015): Widyariset Vol 18, No 1 (2015): Widyariset Vol 1, No 1 (2015): Widyariset Vol 17, No 3 (2014): Widyariset Vol 17, No 2 (2014): Widyariset Vol 17, No 1 (2014): Widyariset Vol 16, No 3 (2013): Widyariset Vol 16, No 2 (2013): Widyariset Vol 16, No 1 (2013): Widyariset Vol 15, No 3 (2012): Widyariset Vol 15, No 2 (2012): Widyariset Vol 15, No 1 (2012): Widyariset Vol 14, No 3 (2011): Widyariset Vol 14, No 2 (2011): Widyariset Vol 14, No 1 (2011): Widyariset Vol 13, No 3 (2010): Widyariset Vol 13, No 2 (2010): Widyariset Vol 13, No 1 (2010): Widyariset Vol 12, No 3 (2009): Widyariset Vol 12, No 1 (2009): Widyariset More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Andri Rahman

Contact Email
andri.agus.rahman@lipi.go.id

Phone
-

Journal Mail Official
widyariset@mail.lipi.go.id

Editorial Address
Pusbindiklat LIPI, Jl. Raya Bogor Km. 46, Cibinong Science Center, Cibinong - Bogor 16911

Location
Kab. bogor,

Jawa barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Andri Rahman

Contact Email andri.agus.rahman@lipi.go.id

Phone -

Journal Mail Official widyariset@mail.lipi.go.id

Editorial Address Pusbindiklat LIPI, Jl. Raya Bogor Km. 46, Cibinong Science Center, Cibinong - Bogor 16911

Location Kab. bogor, Jawa barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Andri Rahman

Contact Email
andri.agus.rahman@lipi.go.id

Phone
-

Journal Mail Official
widyariset@mail.lipi.go.id

Editorial Address
Pusbindiklat LIPI, Jl. Raya Bogor Km. 46, Cibinong Science Center, Cibinong - Bogor 16911

Location
Kab. bogor,

Jawa barat

INDONESIA