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Published by Institut Sains dan Teknologi AKPRIND

ISSN : 19798415 EISSN : - DOI : -

Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Articles 583 Documents

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MANAJEMEN PORTOFOLIO SEBAGAI STRATEGI KEBERHASILAN PROYEK TEKNOLOGI INFORMASI Setiawan, Herri; N, Ashari S
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

IT project portfolio managementis acomplex phenomenonin portfolio manage-mentasanew concept of knowledge management.Projects whichare toorestricting the us-age of resources without a risk calculation will be have effect to expectations ofthe success of a project.Strong leadership is needed to overcome these barriers, facilitating the new processes, and create a portfolio of projects with appropri at managemment. Knowledgeand understanding of the importance of project portfolio management especially in IT projects is required.The study discusses the descriptionof information technology project portfolio management, portfolio management models, problems and benefits of the implementation of IT project portfolios. The results explain several methods for calculating the economic value ofthe project and the steps in determining the selection of projects based on the constraints specified on IT project.

PEMBUATAN SENTRIFUG GEOTEKNIS DI UNIVERSITI KEBANGSAAN MALAYSIA (UKM) UNTUK KAJIAN LINGKUNGAN -, Muchlis; -, Sukandarrumidi; Wan Yaacob, Wan Zuhairi; Mukhlisin, Muhammad
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Many researchers were conducted using geotechnical sentrifug in studies of the environment. The advantages of using a geotechnical sentrifug are quick to obtain the results, less materials used, economical and can be controlled for factors that are not required in the test. All geotechnical sentrifugs that were conducted are located outside from Indonesia and Malaysia, so that requires for build a geotechnical sentrifug in the country. Engineering methodology was to modify the existing geotechnical sentrifug in other countries. The geotechnical sentrifug that was build Universiti Kebangsaan Malay-sia is 50 cm radius beam type geotechnical sentrifug with dead lock capacity 6 kg and maximum acceleration around 75 gravity. The main components are body, arm, bucket sample, counter weight, motor, contaminant bottle and computer. The geo-technical sentrifug is equipped with speed sensor, close sensor, stroboscope sensor and vibration sensor. This geotechnical sentrifug was conducted in environmental studies.

STUDI PERBANDINGAN PERBEDAAN KONSEPTUAL ANTARA SISTEM BASIS DATA RELASIONAL DENGAN SISTEM PENYIMPANAN DATA BERTIPE NON-RELASIONAL (NO-SQL) : EKSPLORASI PADA SERVER DATA CASSANDRA Nugroho, Adi; Winarko, Edi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 1 Agustus 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Relational database system (RDBMS-Relational Database Management System) is a database system that has a very strong mathematical foundation and has many advantages, so it is generally accepted by almost vendor. Basically, there is nothing 'wrong' with a relational database system. However, with the emergence of a variety of Web applications today that require the higher performance of query, relational data base system was showing the queries performance that do not fit the userâ€™s needs and expectations, because relational database system, for generate specific queries, often have to join data from two or more tables that relate. This process require relational database server to perform a data search (lookup) in the tables must be joined. These data searches require computing resources (processor performance and memory usage) that relatively high, so the performance of a relational database server typically decreasesas more data should be joined. This problems trying to be addressed by several vendor. Google with its BigTable, Amazon with its Dynamo, Yahoowith its PNUTS, and Facebook with its Apache Cassandra for example, using the non-relationaldata storage (Data Store) approach. The purpose of this paper is to introduce Apache Cassandra that is one of the very large non-relational systems, then compare to relational database systems.

PENGAMBILAN ZAT WARNA ALAMI ANTHOSIANIN DARI EKSTRAKSI KULIT MANGGIS (Garnicia mangostana L) Murni Yuniwati; Fransiska Ovitasari; Dewi Wulandari
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Mangosteen is a fruit that is very popular in Indonesia. Besides delicious taste, mangosteen also has many benefits and efficacy, including the skin of the fruit. Skin tannin mangosteen contains compounds that can be used in the leather tanning industry, xanthone antioxidants, and anthosianin as a natural dye. Anthosianin in mangosteen skin, can be taken through the process of using solvent extraction and performed in acidic conditions. In this study, the solvent used is etanol and 2N HCl added as much as 0.1% by volume of etanol. The process carried out in a three-neck flask equipped with a heater, stirrer, and cooller. By using raw materials mangosteen peel 5 gams, 100 mL of etanol, and 0.1 mL of 2N HCl, the optimum process conditions obtained by using 3.5 hours, 60 ° C, the solvent content of 96% etanol and stirring speed 300 rpm. Under these conditions obtained anthosianin extracted total of 14.3275 mg.

PELAKSANAAN PROGRAM KEWIRAUSAHAAN PADA PUSAT KEGIATAN BELAJAR MASYARAKAT DI KAB. SLEMAN Pranoto, Aji
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 1 Agustus 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Unemployment and poverty in Yogyakarta, especially in the districts of Sleman both rural and urban is still high. Efforts have been taken by the government with the entrepreneurship education programs (PKM). The program is the Course Rural Entre-preneurial (KWD) and Course Entrepreneurial City (KWK). The purpose of the research is to figure out the implementation of administration, process, achievement of results, follow-up mentoring business, and the factors supporting and inhibiting the implementation of the program (KWD) and (KWK) at the Community Learning Center (PKBM) in Sleman. Data are collected by questionnaires, interviews and documentation. The data obtained are then analyzed using descriptive method. Results show that the average value of implementation of the program administration KWD & KWK, implementation process, and follow-up mentoring are 2.331, 2.406, and 2.338 respectively, hence categorized enough. Meanwhile, an achievement of objectives in average of 2,176 and categorized is less. Supporting factors are the aspect of understanding, ability and experience in conducting, has the electronic media (computer) 70% and a good enough office space, as well as funding (block grants) from the government. Limiting factors are the reliance on a particular board member; un-expert tutor, low motivation learners, and nonproductive citizens. Furthermore, the limititions are (PKBM) which insufficient Internet connection and guide books, lack of funds to open a business stimulant, tutor small honorarium, and the difficulty of finding an external funding sources.

ANALISIS KARAKTERISTIK POMPA SENTRIFUGAL DENGAN SISTEM SERI DAN PARALEL Subagyo, Rachmat; -, Muchsin; Aulia, Rezky
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

The pump is a device for providing mechanical energy to the fluid. At the pump, the fluid density is constant and large. The pump is intended for the transport fluid (horizontal and vertical), raising the pressure and increase speed. The main weakness of the centrifugal pump is located on the limitation of the pressure blower (delivery presure) and not able to provoke their own. For that use multi-level which is usually the same wheelbase and driven by the motor. Various circuits can be used to satisfy a certain condition. Namely series and parallel systems, where a parallel system to increase the pump head and the series system To increase the flow rate.To overcome these problems the research conducted on the characteristics of the pump between the pump with series and parallel systems. To find out the advantages of each characteristic. In this activity, carried out research using the dependent variable valve opening, the load and the volume of water comprising: valve openings Â¼, Â½, Â¾ and 1 and for loading performed at a load 0.25 kg, 0.5 kg, 0.75 kg and 1kg and to use as much water 5 litre, while independent variables are used, namely engine speed of 2980 rpm most of the worth of the smallest worth up to 2945 rpm, the pressure at the pump in and out and the time spent to reach the volume of water by 5 litre. From the test results shows that the comparison between series and parallel pumps each have advantages, further increase in the pump head series and parallel pump further improve the discharge, the pump power and highest efficiency in parallel with 112.79 worth of watts and 65% and the power series highest pump valued at 113.00 watts and the highest efficiency of 53%.

REKAYASA GEOMEDIS PEMANFAATAN PASIR PANTAI DI PANTAI PARANGRITIS DAN SEKITARNYA, KECAMATAN KRETEK KABUPATEN BANTUL DAERAH ISTIMEWA YOGYAKARTA Rakhman, Arie Noor
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 1 Agustus 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

This research aims to utilize sand in Parangtritis Beach, Parangtritis Subdistrict, Kretek, Bantul regency, Yogyakarta Special Region. Utilization of sand with geomedical engineering as means therapy for valuable health sand and applicable scientific. The method used in the form of field data capture characteristic properties of sand to determine the effect of the physical properties of the sand to the sand as a medium utilizing health therapy, include: color, grain size, dust properties, mineral composition, geology and inundated the following conditions as the controller. Primary data field is supported by the analysis of laboratory data in the form of grain size distribution, density, magnetic properties, and secondary data relating to the application of sand therapy information. Composition of magnetic minerals (average 66.20%) were more abundant than non-magnetic mineral grain size and the dominance of fine-sized sand (0.425 to 0.075 mm) affects the temperature of radiant heat on the sand (41.4 to 42 Â°C). Utilization of hot sand is recommended for optimal therapy performed at 16:00 to 18:00 pm with sunny weather conditions. Application using a combination therapy of Egypt model and Tembolor Beach, Lombok. Sand therapy by using a parabolic sand dunes can be applied with local wisdom of the area. Sand retrieval can be done by reusing the small scale and limited. Barchan sand dune land use is not recommended in order to preserve its existence.

STRATEGI SUPPLY CHAIN USAHA KECIL DAN MENENGAH DENGAN PENDEKATAN ANALISIS SWOT GUNA MENENTUKAN STRATEGI PENGEMBANGAN USAHA DAN PERSAINGAN PASAR -, Sidarto
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

In the firms, own small, medium or large in its development have been facing the environment, both the company's own internal environment and external environment of the company. Environmental changes force firms to adjust for the survival of the company itself. So is the Nudi Mulyo Farmers Cooperative, which up to now difficult to develop because of competition from businesses that are located not far from cooperative.One way to determine strategies for developing and managing the market competition is to formulate a strategy to compete with a SWOT analysis approach. In this analysis can be carried out by looking at the internal factors (strengths and weaknesses) that exist within the cooperative and also look at external factors (opportunities and threats). From the results of analysis using the SWOT matrix of the proposed strategy, the first by looking at the strengths and opportunities (SO) should be able to maintain the stability of the cooperative effort considering the number of people around the cooperative livelihood as farmers and farm laborers, while the cooperative it self already has a permanent legal entity, both by looking at the weaknesses and opportunities (WO) cooperative venture must have the courage to raise capital by way of cooperation with investors from the outside, the third with a look of strength and threat (ST) cooperative must be improved its service to customers to cope with competition getting tougher, fourth with a look at the weaknesses and threats (WT) to provide guidance to managers on how to define entrepreneurship and revisit flagship produc and pricing In the foreseeable future, a cooperative must have a clear vision and mission so easy to determine what strategy to do so the cooperative can progress and develop and be able to cope with market competition.

PROSES PEMBUATAN BATU BATA BERPORI DARI TANAH LIAT DAN KACA Hastutiningrum, Sri
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Brick is one of the ingredients of making buildings that currently needs increased mainly due to the porous bricks are stronger and lighter than ordinary bricks, making it great for the foundation of the building. Making bricks porous can use material stuffing form of foam, paper, a rice husk and organic materials. In this research are tried making bricks porous by the use of stuffing form of paper, where these materials are so easily we get. Raw materials used for the manufacture of a porous bricks is glass, clay and water. The purpose of this study was to determine the influence of glass to powerful press of porous brick. Generally, making of porous brick is mixing by powder paper, clay, glass and a little water and then made of dough. Printed and dried dough until weighs constant, then burned in muffle with temperature and time that given. Bricks which has been so then tested strong complained bitterly. The variables used are variable of ratio of clay and glass 1: 1, 1: 1,5, 1: 2, 1: 2.5, and 1: 3, variable of burning time 60 minutes, 90 minutes, 120 minutes, 150 minutes, and 180 minutes and variable of burning temperature 600 oC, 650 oC, 700 oC, 750 oC, and 800 oC. Based on the results of the research that has been done, press optimum strength obtained is 35,26 kg/cm2 with clay and glass ratio 1: 2, while the combustion time 60 minutes, gained strong press optimum of 35,26 kg/cm2 and burning temperatures 700 oC obtained strong press optimum of 36,58 kg/cm2.

SISTEM PAKAR DIAGNOSA PENYAKIT TANAMAN PADI BERBASIS WEB Setyowati, Dwi; Permana, Yudha Indra
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 1 Agustus 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Expert system for analysis of disease in rice is a computer-based system for analysis and diagnosis of diseases in rice based on the symptoms that are displayed on the search process. System design goal is to help farmers to know the type of disease in rice plants as well as instructions given solution and the solution given by an expert.Design of an expert system was built using the method of forward chaining in which the searches performed with the technique in detail and the detail so that the search process is obtained as solutions of the selected problems.Advantages of this method is the description of the algorithm and a knowledge base that is comparable to the analysis of the problem, so the results given the results obtained in the order and detail. Expert system for analysis of disease in rice plants created uses programming language Delphi 7.0 with MySQL. By using an expert system is expected to acquire the system user the ease in obtaining the information needed regarding the analysis and diagnosis of disease in rice.

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