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JURNAL TEKNOLOGI TECHNOSCIENTIA
Published by Institut Teknologi Nasional Yogyakarta
ISSN : 19798415     EISSN : 27148025     DOI : https://doi.org/10.34151/technoscientia.v8i2.161
Core Subject : Science, Engineering,
Earth & Planetary Sciences Engineering
JURNAL TEKNOLOGI TECHNOSCIENTIA dengan ISSN: 1979-8415 dan E-ISSN: 2714-8025 merupakan jurnal ilmiah yang diterbitkan LPPM Institut Sains & Teknologi AKPRIND Yogyakarta sebagai wahana publikasi karya ilmiah/penelitian di bidang teknologi atau rekayasa meliputi bidang teknik kimia, teknik industri, teknik mesin, teknik elektro, teknik informatika, teknik geologi, dan teknik lingkungan, terbit dua kali setahun pada setiap bulan Februari dan Agustus. Setiap naskah yang dikirim akan dilakukan review secara tertutup. Hasil review naskah meliputi: DITOLAK atau DITERIMA DENGAN PERBAIKAN atau DITERIMA. Setiap naskah yang dinyatakan DIITERIMA dan DITERBITKAN dikenakan biaya proses dan cetak sebesar Rp. 250.000,- (di luar biaya pengiriman) dikirimkan via transfer ke: Bank Mandiri Cabang Yogyakarta No.: 137-00-1255210-1 an.: Prof. Dr. Ir. Sudarsono, M.T.
Arjuna Subject : Energi (semua kategori) - Energi (Lain-Lain)
Articles 534 Documents
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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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v6i1.550

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i2.551

Abstract

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

Abstract

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. It’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 employee’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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i2.553

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v6i1.554

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v6i2.556

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v6i2.557

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v6i2.559

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v6i2.560

Abstract

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 can’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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v6i2.561

Abstract

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 60°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.

Page 27 of 54 | Total Record : 534

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