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Journal of Science and Applicative Technology

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Published by Institut Teknologi Sumatera

ISSN : 25810545 EISSN : 25810545 DOI : -

Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Materials Science & Nanotechnology Mechanical Engineering

Journal of Science and Applicative Technology is soon indexed by google scholar, SINTA (Science and Technology Index), portal garuda, DOAJ (Directory of Open Access Journals). This journal has been registered at PDII LIPI (ISSN: 2581-0545). This journal is semiannual journal. It will be published in June and December. The objective of the journal is to provide a room for students, researchers, lecturers, pratictioners and communities to present their ideas regarding several topics covered in this journal. Journal of Science and Applicative Technology covers wide area of research. We welcome full research articles in the following area, including but not limited to : 1. Renewable Energy 2. Green Infrastructure 3. Community Development 4. Computer Science 5. Civil and Environmental Engineering 6. Electrical Engineering 7. Mechanical Engineering 8. Telecommunication 9. Earth and Planetary Sciences (Geography, Geodesy, Geology, Geophysics, Oceanography, Astronomy, Atmospheric) 10. Natural Sciences (Mathematics, Chemistry, Physics, Statistics) 11. Life Sciences (Biochemistry, Biology, Pharmacy) 12. Regional and City Planning

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Articles 15 Documents

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Search results for , issue "Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter" : 15 Documents clear

ANALISA ALGORITMA RELIEFF UNTUK MODEL ASOSIASI PERUBAHAN WARNA PADA INDIKATOR KEMASAN CERDAS DAN PERUBAHAN MUTU PRODUK Elfa Susanti Thamrin
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Smart packaging is one of innovations in the field of packaging that can monitor and provide information to producers and consumers about the quality of the packaged product. Nowadays, there is no exact model to relate both of the changing between the label and the product quality. Thus, it is required an association between discoloration smart packaging indicator with the packaged product quality change. Parameter identification process can generate a lot of parameters, we need a method to select the important parameter attributes therefore it used a ReliefF (Reliable Eliminated of Feature) method. The objectives of this research were to identify the association parameters and to select the important attribute and sufficiently describing the relationship and furthermore this research was to develop an association model of discoloration of smart packaging indicator with natural dyes and the quality changes. The data were obtained from a previous research and discretization to classify the data Â°Hue, Î”E, consumer preferences and the total colony to nominal value. Selection of attributes by using the ReliefF method showed that there were three attributes with the highest weight value (Wi). Furthermore, this research generated important parameters and sufficiently describing the relationship of discoloration and product quality changes.

Analysis Wind Characteristics in South Lampung Indonesia Rico Aditia Prahmana
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Many researchers have begun to evaluate the characteristics of the wind to be the mainstay of energy utilized for power generation. Various countries have started to conduct research of analysis the characteristics of wind potential in certain areas. In this study, wind speed data is be measured in the South Lampung. The maximum and minimum wind speed average in one day is 4.2 knot (from east to west direction) and 0.9 knot (from west to east direction), respectively. The sensor of wid speed is located at 10 meter height from ground. The results show that the maximum wind speed can reach 3 m/s at a height of 10 m on August and December. Moreover, the most wind direction during July to December goes to WSW (West SouthernWest) and SSE (South SouthernEast).

A STUDY AWAL PENDUGAAN AKUIFER AIR TANAH DI KAMPUS ITERA DENGAN METODE GEOLISTRIK KONFIGURASI SCHLUMBERGER Muhamad Ragil Setiawan
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Air bersih menjadi kebutuhan dasar yang harus disediakan di Institut Teknologi Sumatera (ITERA). Kondisi geologis ITERA berada pada daerah dengan batuan piroklastik di atasnya, batuan tersebut memiliki sifat impermeabel. Hal ini meyebabkan air di permukaan sukar mengalir ke bawah permukaan. Oleh karena itu, dilakukan kajian awal bawah permukaan dengan melakukan pengukuran sifat kelistrikan batuan menggunakan metode geolistrik konfigurasi Schlumberger untuk mencari potensi air bersih di ITERA. Data hasil pengukuran diolah dengan menggunakan Ms. Excel dan dimodelkan menggunakan software IPI2win. Hasil interpretasi menunjukkan bahwa potensi sumber air ditemukaan berada pada kedalaman > 25 meter dengan rentang nilai resistivitas antara 2 - 10 Î©m dan termasuk ke dalam akuifer tertekan.

APLIKASI INVERSI MODEL BASED DAN STOKASTIK UNTUK MEMETAKAN PERSEBARAN RESERVOIR BATUPASIR Gestin Mey Ekawati
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Lapangan â€œMâ€ terletak di Cekungan Sumatra Selatan. Target reservoir berada pada Talang Akar Formation (TAF) yang merupakan reservoir batupasir dengan lapisan keseluruhannya adalah perselingan antara batupasir dan shale serta sisipan batubara. Lapisan batupasir pada TAF memiliki ketebalan yang tipis sekitar 13.5 m dan berada di bawah tuning thicknes. Pada penelitian ini penulis mengaplikasikan metode inversi seismik deterministik dan stokastik untuk mengatasi lapisan tipis. Metoda inversi deterministik model based dijadikan model awal/ soft constraint dalam inversi stokastik. Inversi model based menghasilkan hasil yang sesuai dengan data sumur, namun hasilnya masih cenderung smooth dan blocky sehingga belum mampu meresolusi lapisan tipis dengan baik. Inversi seismik stokastik diaplikasikan untuk mengatasi kekurangan yang ada pada inversi seismik deterministik khususnya pada kasus lapisan tipis. Dari realisasi-realisasi model impedansi hasil inversi stokastik yang telah dihasilkan, penulis membuat suatu model probabilitas pada selang impedansi tertentu, dalam hal ini ialah selang impedansi batupasir sehingga penyebaran dari batupasir dapat terlihat. Model probabilitas dari 30 realisasi inversi stokastik dengan parameter P-Impedance dapat memetakan persebaran reservoir batupasir di lapangan â€œMâ€ dengan cukup baik. Peta probabilitas batupasir maksimum berada pada bagian utara daerah penelitian.

FITTING ISOCHRONE OF HYADES STAR CLUSTER BY BUILDING COLOUR MAGNITUDE DIAGRAM (CMD) Annisa Novia Indra Putri
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Star cluster sky survey from many projects have many informations about our Galaxy, Milky Way. Hyades star cluster is the nearest open cluster and one of the best-studied star cluster. Its location about 153 light-years away from the Solar System consist of roughly spherical group of hundreds of stars. Earlier information from this cluster can be used to constraint other paramaters such as structuer, composition, dynamic formation, and evolution of Galaxy. Aim this research is fitting model of simple Colour Magnitude Diagram (CMD) with isochrone from Hyades data using monte caro method including binary star fraction effect and fotometry uncertainty. Basic parameter Hyades data is taken from WEBDA while isochrone Hyades data is taken from Padova site. The result from this research is limiting magnitude instrument observing Hyades around 16 mag. There is points of Hyades data forming new main sequence under real main sequence which fit with model.

A SUBJECTIVE WELL-BEING EVALUATION OF PUBLIC TRANSPORT USERS DURING TRAVEL AND ACTIVITIES: APPLICATION OF DAY RECONSTRUCTION METHOD (DRM) CONCEPT Winny Novalina
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

The question regarding daily travel and activities implication to individualsÃ¢â‚¬â„¢ well-being was heavily debated from past decades. This research is motivated by relationship between travel, activity, and well-being, specifically for public transport users. The modification of day reconstruction method applied in data collection to capture the changes of personal preference during travel and activities. The one day travel activities survey questionnaire distributed to public transport user in Bandar Lampung. Furthermore, 420 samples distribute based on sampling criteria which the result of survey evaluated based on completeness and variance. Key findings of this study are in line with the past study of well-being yet found some crucial findings. It is found that subjective well-being preference is changes during period of time when moving from activity to another activity. Furthermore, this papers also found that majority of individuals have negative experience on their daily travel.

IDENTIFIKASI KANDUNGAN MINYAK ALPUKAT SEBAGAI BAHAN BAKU INDUSTRI KOSMETIK Hendra Saputra
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

This research has been done regarding to the identification avocado oil (Persea americana.Mill) composition as raw material of cosmetic industry. The usage of the avocado in the West Sumatera is still limited, meanwhile, it has two functions which never known by people. It concerns about the amount of the flesh of avocado and the useness for staple and cosmetics. In this research, the researcher will choose high-yielding variety and local variety in Solok, West Sumatera. This is caused by Solok has a good potential which has a plenty of avocados per year which shown by the statistics Plants of food and Holticulture from West Sumatera at 2012 that Solok has a sharp amount of the production Avocado around 27.281 ton per year. In this research, the oil that is gotten by the process of extraction at the solvent uses a dark-green soxhlet. Then it will be achieved some amount of avocado oils from high -yielding variety at 5,31% and 16,11% on local variety from a wet-basis. On the other hand, it will be then achieved the characteristics of physic-chemistry from the extraction. The composition of fatty acid in the arrangement of Trigliserida can be found by making an early derivation by processing of Methyl Ester. This research shows that a high yielding veriety consists of caprilate acid (1,68%), caprate acid (1,93%), laurate acid (8,62%), miristate acid (3,92%), palmitate acid (20,53%), palmitoleate acid (1,08%), stearate acid (5,61%), oleate acid (26,34%), linolenate acid (4,59%). Baside that, for the local variety consists of caprilate acid (0,92%), laurate acid(9,41%), miristate acid (4,00%), palmitate acid (14,44%), palmitoleate acid (0,84%), oleate acid (14,81%), linolenate acid (1,36%), with the total of Trigliserida component from the avocado oil at 73,85% and 45,78% for a local avocado oil. At the result, the highest percentage of fatty acid is oleate acid, basides, the composition of laurate and palmitate acid is big enough while both fatty acid of high-yielding and local variety come to a laurin-palmito-olein.

OPTIMALISASI PROSES KOMPUTASI PELEBARAN PITA FREKUENSI DATA SEISMIK REFLEKSI BERBASIS INVERSI BERESOLUSI TINGGI UNTUK PENAFSIRAN STRATIGRAFI SEISMIK Ruhul Firdaus
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Resolution capability of seismic reflection data is becoming more interesting topic to discuss even for today. Several methods and approximations to attempt bandwidth extension of seismic reflection data have been proposed in wide variety. Among them is a non-stationary reflectivity inversion based on basis pursuit decomposition technique. The need of the method is increasing as it can provide realistic resolution of seismic data. The main advantages of the method are consistancy with log data, good lateral continuity, preserve amplitude and capable in denying artificial reflection feature. Nevertheless, its computational process is very expensive thus most pratitioners tend to avoid the method and look for another method that could serve quicker instead of better results.This paper attempt to propose a set of computational scheme which can be used flexibly for any prospective user to reduce the computational cost of the method.

ANALISA GUGUS FUNGSI PADA NANOPARTIKEL MAGNESIUM FERRITE (MgFe2O4) YANG DIENKAPSULASI DENGAN POLYETHYLENE GLYCOL (PEG-4000) DAN SILIKA Deska Lismawenning Puspitarum
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Magnesium Ferrite Magnesium (MgFe2O4) magnetic nanoparticles have been successfully carried out by varying the concentrations of PEG-4000 and silica as encapsulation materials using coprecipitation methods. The X-ray Diffraction (XRD) analysis showed that new phases appeared in MgFe2O4 after PEG-4000 encapsulation, ie Î±-Fe2O3 having a paramagnetic rhombohedral and Î³-FeO (OH) structure. The particle size of MgFe2O4 before encapsulation was 10.5 nm, after encapsulation with PEG-4000 became 5.2 nm and encapsulation with silica became 18.8 nm. In encapsulation with silica, the peak of the new diffraction field 222 which is a crystal appears. The result of Fourier Transform Infra-Red (FTIR) analysis showed that in MgFe2O4 coated with PEG-4000, there was a shifting in the wave number 2885.5 cm-1 to 2924.1 cm-1 in CH bond which was the bond of PEG- 4000 and a shifting in the wave number 316.3 cm-1 to 300.9 cm-1 on the metal oxide bond (MO) which is a uniform pattern of MgFe2O4. The presence of silica which has coated the magnetic material is shown in the 455.2 cm-1 number of Si-O-Si (bending) group.

ISOLASI DAN KARAKTERISASI SENYAWA FLAVONOID DARI KULIT AKAR TUMBUHAN SUKUN Artocarpus altilis (Parkinson) Fosberg Prio Santoso
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Isolation of flavonoid compounds from Plants Roots Leather Breadfruit (Artocarpus altilis (Parkinson) Fosberg) that grow in the village of Banjar District State Tanggamus Wonosobo regency of Lampung Province has been conducted. Isolation of flavonoid compounds is done by maceration method using the solvent ethyl acetate. Stages of purification of samples carried out by chromatographic methods include vacuum liquid chromatography (VLC), thin layer chromatography (TLC), gravity column chromatography (GCC), and flash chromatography. As for the characterization of flavonoid compounds used infrared spectroscopy (IR), ultaviolet-visible spectroscopy (UV-Vis), nuclear magnetic resonance spectroscopy (NMR), and test the melting point. Based on theÃ‚ resultsÃ‚ of research that has been done, pure flavonoid compounds obtained amorphous form of yellow crystals with a melting point of 247,5-249 0C. Based on the analysis of ultraviolet-visibleÃ‚ spectroscopy, infrared, and nuclear magnetic resonance can be concluded that the isolation of these compounds is artonin E.

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Home Page

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Contact Name Tim Editor Journal of Science and Applicative Technology

Contact Email journal@itera.ac.id

Phone +62721-8030189

Journal Mail Official journal@itera.ac.id

Editorial Address Lembaga Penelitian dan Pengabdian Masyarakat, ITERA Gedung D, Institut Teknologi Sumatera, Jalan Terusan Ryacudu Street, Way Hui Jati Agung Lampung Selatan 35365

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Tim Editor Journal of Science and Applicative Technology

Contact Email
journal@itera.ac.id

Phone
+62721-8030189

Journal Mail Official
journal@itera.ac.id

Editorial Address
Lembaga Penelitian dan Pengabdian Masyarakat, ITERA Gedung D, Institut Teknologi Sumatera, Jalan Terusan Ryacudu Street, Way Hui Jati Agung Lampung Selatan 35365

Location
Kab. lampung selatan,

Lampung

INDONESIA