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Widyariset

widyariset
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Published by Lembaga Ilmu Pengetahuan Indonesia

ISSN : 14117932 EISSN : 24610976 DOI : -

Core Subject : Engineering,

Engineering

Widyariset is a scientific journal which publishes the results of research and development, assessment and systematic thinking about science and technology. The writers of the scientific papers in this journal come from researchers/researcher candidates from various institutions' research and development (R&D), and universities. Widyariset is published regularly three times a year: in April for the issue of Social Sciences and Humanities (IPSK), in August for the issue of Natural Sciences (IPA) and in December for the issue of Engineering Sciences (IPT).

Arjuna Subject : -

Articles 485 Documents

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EKSPRESI HASIL GABAH DAN ANALISIS LINTASAN BEBERAPA VARIETAS UNGGUL BARU PADI DI SLEMAN Bambang Sutaryo
Widyariset Vol 17, No 3 (2014): Widyariset
Publisher : Pusbindiklat - LIPI

Experiments to examine the expression of grain yield and path analysis of several new rice varieties were conductedat irrigated paddy fields, Godean, Sleman, Yogyakarta, during the wet season from November 2012 to March 2013. Five new varieties of rice namely Inpari 4, Inpari 7, Inpari 10, Inpari 11 and Inpari 19 and a popular variety Ciherang were used as checks. Fifteen-day old seedlings sown one seed per hill were planted by jajar legowo 4:1 method, with spacing between plants 25cm x 12.5cm x 50cm, in a 4m x 5m plot. The experiment was designed using a randomized block pattern with three replications. Data obtained indicated that the highest grain yield was obtained by Inpari 10 (9.3 t/ha), followed by Inpari 4, Inpari 7, Inpari 11 and Inpari 19 (9.0 ; 8.6; 8.4 , and 8.3 t /ha, respectively). Those five varieties above mentioned gave grain yield significantly higher than that of Ciherang (5.5 t/ha) and provided excess grain yield amounted to 69.1; 63.6; 56.4; 52.7; and 50.9% for Inpari 10, Inpari 4, Inpari 7, Inpari 11 and Inpari 19, respectively. Maturity varies from 117 days to 122 days for Inpari 4 to Inpari 11, while the lowest plant height was 103.2 cm for Ciherang and Inpari 4 was the highest at 116.2 cm. Path analysis showed that filled grain per panicle directly affected yield, and contributed indirectly to the correlation between yield and each yield components.

IMPLEMENTATION OF MINIMUM SERVICE STANDARD IN JEMBRANA REGENCY AS AN EFFORT TO CREATE ACCOUNTABLE REGIONAL GOVERNMENT A MODEL FOR THE GOVERNMENT OF PEMATANGSIANTAR REGENCY Edward Simon Hasudungan Sitorus
Widyariset Vol 15, No 1 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

This writing is trying to analyze the Implementation Minimum Standard of Service particularly in PermittanceService related to create the accountable Jembrana Local Government. In order to reach the purpose, thisstudy is using qualitative method by observing the secondary data from various resources. This study shows thatJembrana Local Government is successful to implement Minimum Standard of Service particularly in PermittanceService through procedure assurance, time assurance and cost assurance. The implementation has the effect inincreasing indigenous region income, number of trader, employment and investment. The effects then, will createaccountable local government. Furthermore, Pematangsiantar Local Government can make this model to beimplemented in its region.

PENGOLAHAN LINDI TPA DENGAN METODE KOAGULASI DAN OZONASI Latin Hanum Lalasari; Enjarlis Enjarlis
Widyariset Vol 12, No 1 (2009): Widyariset
Publisher : Pusbindiklat - LIPI

Landfilling of municipal waste is a major problem of the waste management system in Indonesia. The generated leachate must be appropriately treated before being discharged into the environment because it ivas toxic. The aim of this research was to compare the coagulation, ozonation, coagulation-ozonation, and ozonation- coagulation processes of landfill leachate at TPA Bantar Gebang Bekasi, to classify the result of landfill leachate treatment, and to provide an efficient methodf or the treatment ofleachates, in order to reduce pollutants' content to concentration values lower than the corresponding limits. The variables selected in this research were types of coagulant, dosage of coagulant, and time duration of ozonation process. Parameters selected in this research were colour, taste, pH, Chemical Oxygen Demand ( COD), Total of Suspended Solid ( TSS), Chloride ion (Cl) and ammonia ion( NH4+). The result of research have shown that the best optimum method of landfall leachate treatment was coagulation-ozonation combination process using FeC13 0.25% as a coagulant and a ozonator (0.25 g 03//h) for 75 minutes at pH of 9. The process succeed to degrade the value of COD, Cl, NII; were about 90,91%, 13,45% , 6,68%, respectively and category of B grade for treated leachate.

PHYTOPLANKTON ABUNDANCE VARIATION AT FLOATING NET CAGE AREA, JATILUHUR RESERVOIR, WEST JAVA Masayu Rahmia Anwar Putri; Sri Endah Purnamaningtyas
Widyariset Vol 16, No 3 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

Eutrophic waters are one triggering factor for the explosion of harmful phytoplankton populations. The aim of this study is to determine the abundance of phytoplankton in floating net cage area Jatiluhur Reservoir. Research carried out in January and March of 2009 and 2010. Water sample taken vertically by water depth, and taken temporally based on the observation time. The composition of phytoplankton and it is abundance in 2010 in Jatiluhur Reservoir less than 2009. 48–49 genus of phytoplankton found on 2009 and on 2010, just 20–25 species found. Based on its composition Chlorophyceae class more than others and based on its abundance, the Cyanophyceae class more dominated. The composition and the abundance of phytoplankton have a different pattern in every observation time and also changed by its depth. The highest of Cyanophyceae class indicated that Jatiluhur reservoir was eutrophic waters.

RAGAM DIALEK GEOGRAFIS NAMA JENIS MAKANAN DAN MINUMAN TRADISIONAL DI KECAMATAN MAJALAYA, KABUPATEN BANDUNG Toni Heryadi
Widyariset Vol 17, No 1 (2014): Widyariset
Publisher : Pusbindiklat - LIPI

This research was conducted in Kecamatan Majalaya. Kecamatan Majalaya is chosen as locus of this re- search because of its uniquenesses. One of its uniquenesses is a diversity of communities that have experienced acculturation and language. The data examined in this study amounted to one hundred and seven vocabularies. The method used in this study is descriptive, i.e. a method that aims to create a portrait or depiction on data, at- tribute, and relationships of phenomena under study in a systematic, factual, and accurate way. Thus, the expected result is to establish the description of vocabulary in form of a portrait or disclosure as it is. The purpose of this study is to identify the development of the vocabularies in Bandung’s geographical dialect, that is the frontier of lulugu Sundanese (formal language) and Bandung Sundanese (informal language). The results showed that there was a wide difference between Majalaya northern dialect with South Majalaya in phonologic-morphophonemic, such as language symptoms of metathesis, protesis, epentesis, aperesis, syncope, and apocope. Beside that, there are morphological differences in repeated words (reduplication) and compound (compositum), while in semantical differences, there may be a completely different form, but the inherent meaning is still the same.

EVALUASI PETA PERCEPATAN GEMPA SUMATERA (SNI-1726-2002) TERHADAP PETA PERCEPATAN GEMPA MENGGUNAKAN SOFTWARE PSHA Fahmi Aldiamar
Widyariset Vol 12, No 1 (2009): Widyariset
Publisher : Pusbindiklat - LIPI

Evaluation on seismic hazard map in Sumatra bedrock was needed because the Indonesian seismic hazard map standard (SNI-1726-2002) was built using the 2D seismic source model and a lot of seismic activity around Sumatera occurred after the 8N1-1 7 26-2002 was published. Probabilistic Seismic Hazard (PSHA) software was developed by USGS in 2007 to gain bedrock acceleration value derivedf rom Probabilistic calculation on 3D seismic source using the Next Generation Attenuation (NGA). Therefore this software represented the newest theory to build seismic hazard map and it was used in this research to evaluate and validate the Indonesian standard, particularly Sumatra seismic hazard map. Several phases were done to gain the seismic hazard map, such as collecting and processing earthquake data, calculating seismic risk parameter, acceleration calculation using PSHA software and developing a seismic hazard map using ArcGis Software. Evaluation result indicated that SNI-1726-2002 seismic hazard map in Sumatera bedrock, particularly in region 3,4 and 5 was lower than seismic hazard map developed using PSHA software. The deviation was range between ± 0.05-0.20g.

GROUNDWATER LEVEL FLOW MAPPING IN VICINITY OF PROPOSED JATIGEDE DAM Yan Adhitya Wesda Wardhana; Heni Rengganis
Widyariset Vol 15, No 3 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

Jatigede Dam development that aims to tackle the water problems that exist in West Java of great importance.Positive impact arising from development of this Dam is rising shallow groundwater at the dug wells population.To prove this, needs to be monitoring of shallow groundwater in the area around the pool area will Jatigede Dam.This monitoring has been ongoing since the year 2008 up to this time, either during the rainy season and dryseason. This study aims to determine fluctuation of shallow groundwater in the wet season and dry before the damflooded, while also to know the flow of shallow groundwater through contour mapping shallow groundwater. Theresults obtained in the form of shallow ground water level fluctuations from 2008 through 2011, and map the flowof groundwater. Advance groundwater monitoring will be carried out until the reservoir is filled with water thatplanned in 2013.

NERACA NITROGEN KAMBING PERANAKAN ETAWA YANG DIBERIKAN TINGKAT KONSENTRAT DAN HIJAUAN BERBEDA Anak Agung Ngurah Badung Sarmuda Dinata; Sentana Putra
Widyariset Vol 17, No 2 (2014): Widyariset
Publisher : Pusbindiklat - LIPI

The research was conducted to determine the nitrogen balance in etawa descendant goat (PE) that is fed at different levels of concentrate and forage diets. Nine PE goats with average body weight of 23,98 ± 3,18 kg were used in this research for three months. This study was arranged in a completely randomized block design with 3 treatments and three blocks as replications. Treatments were PE goats fed 55% forage diets (Pennisetum purpureum) + 45% consentrate (A) ; PE goats fed 70% forage diets (P. purpureum: Gliciridia sepium = 2 : 3) + 30% concentrate (B) ; and PE goats fed 85% forage diets (P. purpureum: G. sepium : Hibiscus tilliacius = 1: 3 :1) +15% concentrate (C). Parameters of N intake, N digestible, N retention, biological value and net nitrogen utilization were observed. The result indicated that C treatment was the best of nitrogen balance with nitrogen retention was 14,5 g/d. This result was consistent with the highest dry mater intake of treatment C. This study suggests that PE goats which are given treatment C resulted the best nirogen balance.

MODELING OF OIL SPILL ON MONTARA WELL HEAD PLATFORM IN THE TIMOR SEA - Lukijanto; Andri Purwandani
Widyariset Vol 15, No 3 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

Modeling of oil spill on Montara well head platform in the Timor Sea, with short-term period from August 20,2009 until January 5, 2010 has been conducted. The purpose of this study was to examine the pattern of the spreadof oil spills (the distribution, the areas of oil exposure, concentration of the oil spill and the time of exposure)which was a possible entry into the Exclusive Economic Zone (EEZ) of Indonesia. The results indicated that an oilspill scenario of 400, 1,500 and 2,000 barrels per day were obtained the maximum value of the oil concentrationof 54.0 ppm, 202.4 ppm and 270 ppm, respectively. The total area of oil spill exposure in EEZ of Indonesia wasabout 41,360 km2 with an average maximum area exposed for 2 hours and a maximum of 3:29 hours. Comparisonbetween the results of oil spill modeling with image analysis of Modis Aqua and Terra (SkyTruth) were obtainedthat the extent of distribution and movement patterns differ from one to another. Furthermore, the verification andvalidation of the modeling results with the field data are still required.

HUBUNGAN ANTARA PERSEPSI TENTANG GAYA KEPEMIMPINAN DIREKTUR DENGAN PRODUKTIVITAS KERJA DOSEN POLITEKNIK ILMU PELAYARAN (PIP) MAKASSAR Jean Novita Christanty Budiman
Widyariset Vol 12, No 3 (2009): Widyariset
Publisher : Pusbindiklat - LIPI

This research was aimed: (1) to describe the perception of lecturers on director's leadership style, (2) to describe lecturers' working productivity, and (3) to know the correlation between the perception on director's leadership style and lecturers' working productivity at PIP Makassar. This research population was based on all lecturers (97) at PIP Makassar. However; the samples were randomly taken 55% from the population. The data were collected by questionnaire and interview methods, then they were analyzed by using descriptive statistics to describe the perception of lecturers on director's leadership style and lecturers 'working productivity. The correlation between the perception of lecturers on director 's leadership style and lecturers' working productivity was analyzed by a simple correlation. The results of this research showed that the perception of lecturers on director's leadership style was in a high category as well as lecturers' working productivity. By correlation analysis, it was found that there was a positive and a significant correlation (0.563) between the perception on director 's leadership style and lecturers' working productivity at PIP Makassar.

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Pusbindiklat Peneliti-LIPI (The National Training and Education Center for Researchers Development – Indonesian Institutes of Sciences) Jl. Raya Bogor Km. 46, Cibinong Science Center Cibinong - Bogor 16911

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Kota adm. jakarta selatan,

Dki jakarta

INDONESIA