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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 223 Documents

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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.

Evaluation of Pedestrian's Profile, Activity, and Environment in the City of Kitakyushu, Japan Fritz Akhmad Nuzir
Journal of Science and Applicative Technology Vol 1 No 1 (2018): ICoSITeR Special Edition
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Various attributes addressing the issues on walking environment and walking condition possibly has distracted the efforts of creating better planning and development to promote walking to the citizen. It will take an enormous effort and time for them to consider all the attributes that are available. Therefore authors assess the possibilities of the utilization of the Pedestrian PL.AC.E. (Profile, Activity, and Environment) and its key-attributes using a survey questionnaire in order to confirm that it can serve as a framework for urban planning or assessment in promoting a walking-friendly environment. The questionnaire was distributed to the case study area which is the city of Kitakyushu, Japan. After collecting and documenting all responses, the results were analyzed using descriptive type of statistical analysis with SPSS software.

PERBANDINGAN TOTAL RENDEMEN DAN SKRINING ANTIBAKTERI EKSTRAK ETANOL DAUN SIRIH HIJAU (Piper betle L.) SECARA MIKRODILUSI rissa laila vifta
Journal of Science and Applicative Technology Vol 1 No 2 (2017): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

The optimization of extraction procces for Sirih Hijau leaves (Piper betle L.) have been attempted. The aim of the research was to knowing the influence and the ratio of total yield on two different methods, that was using maceration and reflux method and followed by microbial antibacterial by microdilution test to show the qualitative value of MIC percentage of Sirih Hijau leaves extract against Escherichia coli and Staphylococcus aureus bacteria. The analysis was conducted descriptively for subsequent use as a basis to determined MIC percentage quantitatively. The result of extraction with two methods showed that the highest yield was yielded in reflux process with 18.5% rendement value with the weight ratio of 1: 5 to the maceration process. Phytochemical screening shows the ethanol extract of Sirih Hijau leaves contains flavonoid, saponins, and tannins compounds that have activated as antibacterial. The results of microbial antibacterial testing showed MIC percentage in Staphylococcus aureus at 5% and Eschericia coli at 3%. The test results indicate that Sirih HIjau leaves (Piper betle L.) have potential as an antibacterial candidate. Keyword : Sirih Hijau, reflux, maceration, antibacterial, microdilution

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.

Identifying Local Communityâ€™s Empowerment in Developing Sustainable Tourism in Pahawang Island, Pesawaran Regency, Lampung Province Isye Susana Nurhasanah
Journal of Science and Applicative Technology Vol 1 No 1 (2018): ICoSITeR Special Edition
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

One of the problems on current road infrastructure development in Indonesia is the difficulty of getting road data and information. For example, data and information, which related on sustainable road infrastructure development. Moreover, some of road authorities did not realize that data is important element in the cycle process of road infrastructure development. Inaccurate road data will decrease the quality of road budgeting and programming, on the other hand it will affect the period service of road itself. The good road data could support sustainable road by providing the road value such as historical, current condition, and prediction. Indonesian Road Data Center Operations (IRODCO) is a concept of integrated road database storage. Collaborate data from Indonesian road authority (Ministry of Public Work and Housing, Ministry of Transportation, National Police and Local Government) can be stored, processed and managed to be a value-added information. IRODCO will provide data and information easily and quickly, for supporting the sustainable development of road infrastructure. This paper will explain the background of IRODCO concept, type of road database, the architecture, and how this concept will be implemented in Indonesia, particularly for supporting the sustainable road infrastructure development.

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.

Landslide Density Based on Time Series Kamilia Sharir; Norbert Simon; Rodeano Roslee
Journal of Science and Applicative Technology Vol 1 No 1 (2018): ICoSITeR Special Edition
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Abstractâ€”Landslide density analysis based on a temporal landslide distribution over three different years was conducted in Kundasang, Sabah, Malaysia. The analysis involved landslides that occurred in 1984, 2009 and 2012. The objective of this study is to examine the relationship between the physical parameter and landslide density analysis based on temporal landslide distribution. This is the preliminary study for landslide hazard assessment. Landslides in these three assessment years were identified based on aerial photographs interpretation. The landslides detail has to be digitised as points and the point density was calculated using 1 km x 1 km grid on the landslide inventory map. From the analysis, there were 494 landslides distributed across the assessment years and by using the natural break classification, the landslide density map was classified into three classes of density, resulting low (1 landslide), moderate (2-3 landslides) and high (>4 landslides). Based on the landslide density analysis, there are 48 km2 that were identified as highly susceptible to landslide. Out of the high landslide density area, 46km2 were indicated as the most susceptible location for landslides due to the type of lithology that may lead to land sliding. This study indicates that the lithology played an important role as they can influence the geomorphologic process, and can induce landslides. As a conclusion, this study found that using the grid technique is an effective way to determine landslide density and detail investigation should be conducted to minimize the impact of landslide occurrences before any development could take place.

IDENTIFIKASI DEKSAMETASON DALAM JAMU PEGAL LINU SEDIAAN SERBUK YANG BEREDAR DI PASAR-PASAR KOTA BANDAR LAMPUNG SECARA KROMATOGRAFI LAPIS TIPIS Sudewi Mukaromah Khoirunnisa
Journal of Science and Applicative Technology Vol 1 No 2 (2017): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

A total of 26.6% of the population in Lampung Province consume traditional medicine, one of which is Jamu Pegal Linu. However, a large public interest in herbal products is often misused by herbal manufacturers that it is possible to add BKO (Medicinal Chemicals), such as dexamethasone.The purpose of this study is to identify the presence or absence of dexamethasone in the preparation of Jamu Pegal Linu. The samples are taken from the store and depot herbs contained in the Markets of Bandar Lampung, acquired three different brands. The method used is Thin Layer Chromatography using dikloretan motion: diethyl ether: methanol: water (77:15: 8: 1,2) as a mobile phase which are non-polar, and silica gel GF 254nm as a stationary phase. The result showed that the detection of three samples of Jamu Pegal Linu contained staining purple and the difference of Rf sample with reference standard on the first repetition is 0.46, 0.44, 0.47, and on the second repetition is 0.45, 0.45 and 0.48, which are â‰¥ 0.05. It can be concluded that the sample of Jamu Pegal Linu in Bandar Lampung 0% containing dexamethasone.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

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

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