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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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MONITORING DAN PENGENDALIAN SUHU MENGGUNAKAN MEDIA GPRS PADA PONSEL GSM -, Subandi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

The temperature forms the importan aspect on the life. There are a lot of activity which was under the influence of the condition of temperature. Because of that, monitoring system and controlling the temperature is necessary. Therefore, making the equipment which able to monitor and control the temperature is necessary. This interface will applied on the room where needs controlling the temperature. For example, laboratory or meeting room. Monitor and controller in wireless manner become choice on the controlling long distance. This analysis heavily on the activity of temperature censor and relay which be connected on the fan for the stimulation. The temperature of the room information and send to microcontroller what will work by automatically contact the PC through LPT or port printer for the parallel communication. All of the data will be processing and connecting to the web as an internet aplication on the PC. We can choice menu to control and monitor temperature of the room through GPRS media on the GSM telephone cellular from the connection of the internet. Microcontroller which used is microcontroller AT89S51.

SISTEM PENDUKUNG KEPUTUSAN EVALUASI KINERJA KARYAWAN UNTUK PROMOSI JABATAN STRUKTURAL PADA BIMBINGAN BELAJAR SCIENCEMASTER MENGGUNAKAN METODE GAP KOMPETENSI (PROFILE MATCHING) Hidayat, Arif Lukman; Pinandita, Tito
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i2.552

Problem which often happen in course of assessment of employees performance is subjective decision making, especially if some existing employees have close same ability. Using decision support system it is expected to decrease subjective in decision making. Itâ€™s replaced by counting all of criteria to all employees, so that employees with the best ability will chosen. Decision Support System by using Gap analysis is made by considering data and norm human resource development. Gap enumeration process conducted to determine the employees recommendation for promotion base on 3 aspect, that is Intellectual Capacities, Attitude Work and Behavior. The result of this process is employees ranking. It is used as recommendation for decision maker to choose the compatible employees at the empty position. This application is built using Microsoft SQL Server as database and Visual Studio 2010 as tools compiler with C# language. Based on the implementation system result, it was concluded that the use of these applications can help decision making employeeâ€™s performance evaluation process for structural promotion in Sciencemaster Course.

LOGIKA FUZZY SWARM INTELLIGENCE BEE COLONY UNTUK MEMINIMALISASI KEMACETAN TRANSPORTASI Andriyani, Widyastuti; Wardoyo, Retantyo
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 2 Februari 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

This paper uses the concept of fuzzy logics to integrate with bee systems to solve inexact model problems. As an example, in this paper the integration will be used to minimalise the congestion of transportation problems. Bee systems face many problems for decision making when seeking for the best solution, some of them: to determine the next solution components to be added to partial solution, to determine which partial solutions should be left or not, and to determine the same partial solutions without recruiting friends from the same nest. The majority of these selection models is based on the assumption that the decision makers have the ability of processing perfect information, and are always acting rationally and exactly. However, in certain conditions, information is not exact, but is still realistic.

PERBANDINGAN PEROLEHAN BATUBARA CAIR (YIELD) ANTARA BATUBARA RANK RENDAH DENGAN RANK MENENGAH PADA BATUBARA FORMASI WARUKIN, KAB. TABALONG, KALIMANTAN SELATAN Nursanto, Edy; Idrus, Arifudin; Amijaya, Hendra; Pramumijoyo, Subagyo
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 1 Agustus 2013
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Research focusing on the quality of coal in Warukin Formation has been conducted in coal outcrops located on Tabalong area, particularly in 3 coal seams, namely, Wara 120 which is low rank coal, then Tutupan 210 and Paringin 712 which consist of medium rank coal. The average coal quality for seam Wara 120 consist of inherent moisture (IM): 26.65%, whereas for ash and volatile matter (VM) is (ash:5.08%; VM=43.98%). Beside that for fixed carbon (FC) is 24.29%. Meanwhile for seam Tutupan 210 consist of inherent moisture (IM) is 18.42%, ash:1.81%, FC: 33,88% and Paringin 712 consist of inherent moisture (IM) is 16.84%, ash:1.36% VM: 23.02% and FC: 35.76%. Coal liquefaction is conducted of coal -200 mesh(1g) in an autoclave on low pressure and temperature. Pressure during the process is 14 psi and temperature is 120oC. Research was designed by using time variable, respectively, 30 60, 90 minutes. Conversion result gained will be associated with the length of yield process. The aim on the coal liquefaction process is coal liquid. The process is conducted on the time variables of 30, 60 and 90 minutes with following results: seam Wara 120 is 35,76% (30 minute),40.68% (60 minute), 31.15% (90 minute). Then Tutupan 210 and Paringin seam are 7,64% (30 minute): 14,51% (60 minute), 4,53% (90 minute) and 3,21% (30 minute): 9.57% (60 minute), 1,71% (90 minute). Due to characteristic of coal that Wara 120 seam have H/C ratio higher than Tutupan 210 and Paringin 712, so the average result of yield shows that coals in Wara has higher yield conversion than coals in seam Tutupan and Paringin.

PEMANFAATAN SPARQL INFERENCING NOTATION (SPIN) DALAM PROTOTIPE PENCARIAN DATA RESTORAN BERBASIS SEMANTIK Haryawan, Cosmas
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 2 Februari 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Today, more and more information circulating on the internet that cause more difficulty in finding users desired information because many search engine have not used in understanding the concept of semantic search phrase. Application developed in this research is prototype of semantic search on restaurant data using SPARQL Inferencing Notation (SPIN). Search sentence must follow a rule that must be preceded by direction word (tampil, cari, sebut) and followed by a synonym of class which want to find (restoran, makanan, kategori, lokasi). Every search phrase which entered by user will be translated with tokenization process, stemming, stopword removal (filtering process) and followed by the representation of search sentence using keywords in support ontology (words.owl) thus formed run SPARQL to query data located on restaurant.owl ontology. The test result of this research show that the search application which built have an ability to handle wide variety of pattern of question and got the ratio of recall and precision 1:1, thus meaning that this application has a high effectiveness and efficiency in search result.

PERANCANGAN SISTEM INFORMASI AKUNTANSI UNTUK SISTEM PIUTANG Kusumawati, Dara
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 2 Februari 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Now a days many sales transactions are done on credit, so this raises the receivables. The number of mutations receivables transaction requires the owner to improve the management of accounts receivable so that mutations can be generated reports of rapid and accurate accounts. It is necessary for the design of accounting information systems for accounts receivable system. Information system design research methodology used is receivable accounting system starters, system analysis, system design, system implementation and system testing. Accounting Information Systems for receivable system will do the recording onset and reduced accounts receivable and will produce basic information such as accounts receivable, accounts receivable cards each debtor, and Statement of accounts receivable aging analysis of receivables.

REKAYASA DATABASE TERDISTRIBUSI PADA LAYANAN PEMESANAN TIKET PESAWAT TERBANG Lenti, Febri Nova
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 2 Februari 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Distributed database allows users at each location are dispersed can access data stored in another location. Advantages compared with a web-based database is if a database failure at one location then not will disable all other database operations. In addition, a distributed database has the readability of the data better than the centralized database, for the reason each site only handle a portion of the entire database , resulted in an difference to service the CPU and I /O such as the characteristics of the centralized database. The airlines as an organization that has branches and sales agents scattered in a few places if you want to always maximize service to its customers, it would be very appropriate if you are using a distributed database in a ticket booking transaction services. In this paper will be engineering a distributed database on tickets booking services . Implementation is done by applying a distributed database replication and applications performed using a sequential process model with object-oriented paradigm . Final result of the application of an airplane ticket booking services based distributed database that will improve the performance of the services.

ANALISIS KAPASITAS UPLINK DAN DOWNLINK SISTEM SELULAR WCDMA ATAS KETIDAKSEMPURNAAN SEKTORISASI SEL Santoso, Gatot; Kristiyana, Samuel
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 2 Februari 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

In this research analyzes the connection Wideband Code Division Multiple Access (WCDMA) for uplink and downlink with imperfect sectorization. Because all channels are on the same frequency, so when the active user increases, the performance of system will decrease. In other words, it causes the capacity of system will decrease. In CDMA terminology, the other frequency of Mobile Station (MS) will get effect to the active MS. The co-channel interference can be decrease with splitting the cell into several sectors. It is called the sectorization. But the sectorization can work well because the antenna radiation canâ€™t make the perfect angle and also there is existance of side lobe of radio frequency. The results show, the imperfect sectoration overlap angle between each neighboring sector decreases the capacity system cause more interference to overlapping sector pair. The knowledge gained is to neduce the large overlap angle and we can make the prediction the loss in cell capacity caused by interference.

SINTESIS KARBOKSIMETIL KITOSAN TERHADAP PENGARUH KONSENTRASI NATRIUM HIDROKSIA DAN RASIO KITOSAN DENGAN ASAM MONOKLORO ASETAT Rahmawati, Helda; Iskandar, Dodi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 2 Februari 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

This study aims to determine the effect of NaOH concentration and the ratio of monocloro acetic acid with chitosan used in the synthesis process to the degree of substitution and solubility in water. Preparation of carboxymethyl chitosan (CMCts) was carried out by various concentration of NaOH and ratio of monochloro acetic acid with chitosan. The concentration of NaOH used in the alkalination process were 10, 20, 30, 40, and 50% (w/v). The ratio of chitosan: monochloro acetic acid used for etherification were 1:0,5; 1:1; 1:1,5; and 1:2 (w/w). Etherification was carried out at a temperature of 60Â°C for 2 hours. The results showed that the NaOH concentration of 10-30% (w/v) increased the substitution degree and solubility of produced CMCts. But at concentrations above 30% (w/v) the substitution degree and solubility were decreased. The ratio of chitosan : monochloro acetic acid also affect to substitution degree and the solubility of synthesized CMCts. The higher amount of monochloro acetic acid added to chitosan, the higher is substitution degree and the solubility of carboxymethyl chitosan synthesized in water. The best result was obtained when the ratio of chitosan : monochloro acetic acid were 1:2 (w/w). Within this ratio a 92.05% of yield was resulted with a solubility of 28.05 g/L and a substitution degree of 0.72.

VARIATION IN CARBONATE CEMENT BY CATHODOLUMINESCENCE MICROSCOPIC ANALYSIS: IMPLICATION ON ENGINEERING PROPERTIES OF OOLITIC LIMESTONE IN FATUMNASI AREA, TIMOR TENGAH SELATAN (TTS) REGENCY, NUSA TENGGARA TIMUR PROVINCE Kotta, Herry Zadrak
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 2 Februari 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Cathodoluminescence (CL) is generated by visible light of minerals when they are bombarded with a beam of high energy electrons by a cathode gun. There are two types of chatodoluminescence, i.e., cold CL and hot CL. In the cold cathode microscopic equipment, the electrons are generated by an electric discharge between two electrodes under a low gas pressure, whereas in the hot CL microscope, the electrons are generated by heating a filament (2000-3000Â°C). This research to propose determine the growth of oolitic limestoneâ€™s cement by cathodoluminescence analysis and itâ€™s implication to the engineering properties. Sectoral zoning and chevron-shape growth zoning exist in some coarse-grained calcite aggregates. The sectorial zoning of calcite as reflected by dull to bright CL color indicated as a water level fluctuation during cementation of the carbonate rocks, where the bright color of calcite indicating a shallower depth of water (oxidation) and dull to nonluminescence indicating a deeper level of the water (reduction). The results of this research, oolitic limestone (sample NS-1) showing sectorial zoning (chevron-shape) with at least 6 zonations, and have better engineering properties of other samples, according to SNI. 13-0089-87. Cathodoluminescence analysis is commonly used in the petroleum study, as evidenced in this research can be applied to determine the engineering properties of oolitic limestones in the study area.

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