Journal of Science and Applicative Technology
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
Articles
223 Documents
<![CDATA[Possibility and Effects of Recycling Vinyl-Banner Waste into Fired-Clay Bricks for Home Industry in Lampung ]]>
<![CDATA[R. Ikhwanuddin]]>;
<![CDATA[O. F. T. Maryana]]>;
<![CDATA[M. Y. Darmawan]]>;
<![CDATA[S. Anggini]]>;
<![CDATA[A. Lailani]]>;
<![CDATA[V. L. Ipmawan]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281429
<![CDATA[Bricks are regarded as important material in building constructions. Basically, brick is processed by mixing clay and water then burnt under high temperature for a certain duration. Previous study in Indonesia shows that mixing local clay with additional materials could improve its characteristic, especially in terms of water absorption potentiality. Lampung has home industries which run brick making business traditionally. Moreover, this year Indonesian government has been organizing regional elections which attract campaigners to produce more vinyl banners as advertising media. As the event has already passed, vinyl banners eventually become environmental issue since they are not yet well managed. The aim of this study is to investigate the possibility and effect of red bricks mixtures along with vinyl banner waste. Fired-clay bricks dimensions including length, width, and height are 19 cm, 9.5 cm, and 5 cm respectively. Measurement has done by employing water absorption tests. Waste-added bricks absorb more water than the conventional one, about 11% higher. However, rice-husk-ash-added bricks perform similar to the normal bricks, it has slow rate of water absorption. Absorption rate of waste-added bricks also fast and exceed the conventional and RHA-added bricks. Modified red bricks surfaces are uneven, they show cracks and rough edges.]]>
<![CDATA[Bedrock Investigation using Resistivity Method as an effort to Provide Subsurface Data at ITERA Campus ]]>
<![CDATA[. Rizka]]>;
<![CDATA[S. Satiawan]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281430
<![CDATA[This is a study of the application of resistivity method to provide the subsurface data for building/ foundation construction. The subsurface data which provided is resistivity data laterally and vertically and able to be used to investigate the depth and thickness of bedrock. 35 points of 1D resistivity data had been collected in ITERA campus that covered ± 150 Ha. It concentrates at northern to middle part of ITERA campus. Schlumberger configuration was employed with minimum and maximum AB/2 was 2 and 150 meter respectively and 3 varied MN. Iso-resistivity maps show high apparent resistivity value was distributed laterally and vertically. High apparent resistivity value is indicated as a representative of bedrock. The high apparent resistivity zone (resistive zone) was shown in Iso-resistivity map AB/2 2.5 and consistently up to AB/2 15 with the range of high apparent resistivity value is 80.2 up to 210.8 ohmmeter. The resistive zone was distributed laterally in Northeast to West part of study area where the depth and thickness of bedrock in west part is shallower and thicker than others.]]>
<![CDATA[The Influence of variation the blade distance against the cocofibers and cocopeat percentage of the coconut fruit from Jambi Area ]]>
<![CDATA[Emmistasega Subama]]>;
<![CDATA[. Sepriyanto]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281432
<![CDATA[The influence of variationthe blade distance against the coco fiber and coco peat percentage of the coconut fruit from Jambi area has been done. The study aims to know the percentage of cocofiber and cocopeat produced based on the influence of variation the blade distance of decomposition machine starting from 5 cm, 10 cm and 15 cm. Each round speed will operate for 2 minutes with 500 grams of raw material and use 10 decomposing blades. The results show that (1) distance of blade provides an influence on the value of the cocofiber and cocopeat produced (2) on the distance between the blade 5 cm obtained cocofiber as much as 30% and 62% of cocopeat raw materials. On the distance between the blade 10 cm obtained as much as 34% and cocofiber cocopeat 58% of raw materials, on the distance between the blade 15 cm obtained as many as 32% and cocofiber cocopeat 60% of the raw material (3) maximum of cocopeat cocofiber results on 10 cm distance between the blade.]]>
<![CDATA[Spatial Analysis of Seismic Hazard based on Dynamical Characteristics of Soil in Kota Baru, South Lampung ]]>
<![CDATA[V. L. Ipmawan]]>;
<![CDATA[I. N. P. Permanasari]]>;
<![CDATA[R. N. Siregar]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281437
<![CDATA[Kota Baru, a new capital Lampung province location, planned and developed since 2012, will be a densely populated in near time. The province located in near Semangko fault, southern of Sumatra Island, is a vulnerable area to earthquake. Seismometer was deployed for 15 points in Kota Baru for recording mictrotremor. The signal was analyzed by HVSR method produced fundamental frequency f0, amplitude A0, and seismic vulnerability index Kg. The range of frequency value is about 0.56 Hz to 1.46 Hz. The range of amplitude value is about 2.3 to 6.17. There is linear relation between Kg and the damage caused by earthquake. The Kota Baru classification of seismic hazard map was generated by plotting the value of Kg. The area at the northeast of Kota Baru is more risky to be inhabited because it has higher value of Kg. The more safety area located in near T7 and T15 because it has lower value of Kg than theothers.]]>
<![CDATA[Potential Analysis of Hydro Power Plants in Pesisir Barat District, Lampung Province ]]>
<![CDATA[Kiki Kananda]]>;
<![CDATA[Dean Corio]]>;
<![CDATA[Hafif Restu K.]]>;
<![CDATA[Hilmi Aziz]]>;
<![CDATA[Topan Wira B.]]>;
<![CDATA[Diah A.]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281438
<![CDATA[Hydropower plants are increasingly being heard nowadays, but the growth is still very lacking, especially for residents living in rural and coastal areas. At present several efforts have been made by the government, including the existence of a system of purchasing electricity from small-scale renewable energy generation and the construction of new transmission networks. Pesisir Barat Regency is part of the South Lampung region, Sumatra. This region has a population distribution in the coastal area and is surrounded by Bukit Barisan National Park. So that there are many large river streams that can be utilized by the local community. Large rivers have the potential to be utilized further as hydropower renewable energy sources. River potential is seen by conducting river location surveys, flow measurements and river heads and power calculations. Based on the analysis of measurement results there are two rivers that have the potential to be a micro or mini hydro generator; Way Laai and Way Lami. The maximum design discharge of Way Laai of 4.52 m3/s can produce a mechanical output power of 1223.82 kW with an effective head of 44.16 m. Way Lami with a design discharge of 5,336 m3/s, an effective head of 28.8 m has the potential to provide a mechanical power output of 942.23 kW. Sequentially, with this mechanical output power, the Way Laai and Way Lami rivers, can meet the electricity needs of the community with an installed power of 900VA as much as ± 1350, ± 25100 Houses.]]>
<![CDATA[The Effects of Development Program in ITERA Dormitory for Student Learning Achievements in First Year Stage Course ]]>
<![CDATA[Triyana Muliawati]]>;
<![CDATA[Dewi Suhika]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281440
<![CDATA[The development of student character starts from education process in campus life and residence. The environment is less comfortable and effective in the learning process will affect student achievement. To overcome this, the Institute of Technology of Sumatra (ITERA) provides a new student dormitory which one of the place that can provide an effective learning environment because the coaching programs provided such as peer tutors aim to develop learning achievement in TPB Program. The relationship of coaching program in the dormitory to student achievement on First Year Stage Course (TPB) can be analyze use simple regression method. The data that used in this method are questionnaire, mid test score and final test, especially in Basic Mathematics. The results of the analysis stated that the coaching program at the Dormitory resulted in higher learning achievement than those outside the dormitory.]]>
<![CDATA[To What Extend Does The Technology Disrupstion Affect The Sale Of Smes Banana Chips Products In Bandar Lampung? ]]>
<![CDATA[Helmia Adita Fitra]]>;
<![CDATA[Fran Sinatra]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281442
<![CDATA[Small and Medium-Sized Enterprises (SMEs) in Indonesia, which is also known as Usaha Mikro Kecil dan Menengah (UMKM), play a significant role in determining national economic performance. Banana chips are the most well-known product in Bandar Lampung. As the provincial capital of Lampung Province, Bandar Lampung becomes the center of trade and services sector which is a vital sector of the downstream industry activity. One of the vital aspect in the downstream of Banana chips industry is selling. This study aims to examine the effect of disruptive technology on the sale of SMEs Banana Chips products in Bandar Lampung. This study conduct the quantitative approach by using multiple regression linear analysis. The findings show that the regression model of selling aspect has 0.594 in R2 value. It means that the regression model is able to represent the real condition about 59,4%. According to the model, among the 6 (six) predictor variables, the most-influencing variable on the sale of Banana chips products is online-based promotion.]]>
<![CDATA[Robust Control of a Quadcopter Flying via Sliding Mode ]]>
<![CDATA[Rudi Uswarman]]>;
<![CDATA[Swadexi Istiqphara]]>;
<![CDATA[Rajif Agung Yunmar]]>;
<![CDATA[Arkham Zahri Rakhman]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281446
<![CDATA[Sliding Mode Control (SMC) used to control the stability of a quadcopter from disturbances and uncertainties. This technique has two main advantages: the nonlinear dynamics and modelling errors of the quadcopter can be eliminated by switching function and the uncertainty problem can be overcome with a closed-loop response. The controller of the sliding mode technique consists of two components. The first is design equivalent control law to maintain the system state trajectory on the sliding surface. The second is design switching control law to reach the sliding surface. The Lyapunov theorem is used to ensure the stability of the system. Simulation results verify the robustness of the controller.]]>
<![CDATA[Development of Intersection Management Strategy Due to Opening of Sumatra Toll Road ]]>
<![CDATA[S. Rahma]]>;
<![CDATA[R. A. E. Putra]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281447
<![CDATA[The main role of a transportation network is providing optimum services for transportation network. Over the time, the population is increasing and the needs of reliable transportation network also increased. Transportation network consists of node and connector. According to the condition, the provision of reliable transportation network facilities should be able to optimize the node and the link. In the real condition, there’s a gap between the existing transportation network conditions with the optimum transportation network conditions, as a result the existing transportation network is not able to serve the transportation movement that occurred. Based on this information, research entitled Development of Intersection Management Strategy Due to Opening of Sumatra Toll Road. The objective of this study are: a) Generating traffic flow through the Simpang Polsek Sukarame, Bandar Lampung. b) Evaluating the traffic composition through Simpang Polsek Sukarame, Bandar Lampung. c) Evaluating services intersection parameters needed in evaluating the intersection. d) Determining the intersection strategy of intersection due to the opening of the Sumatra Toll Road. The study is conducted by using Macroscopic Modeling approach using PTV Vissum application and microscopic evaluation using MKJI 1997. In the research, there are several types of data needed. These data are classified into primary and secondary data. Primary data required include: a) Traffic Counting Data, TC Data implemented at Simpang Polsek Sukarame. Traffic Counting data is used as a database for the validation of the transportation model. b) Road geometry data is taken at all connector of Simpang Polsek Sukarame. The Geometry consist of the road width and shoulder width. Geometry data is used for capacity calculation, delay, and saturation degree. From the results of transport modelling that will be evaluated the service level of the intersection based on the parameters of degree of saturation, delay, and speed of vehicles through the intersection. The Result of the model shows that The queue length increasing from 10.66 m to 16.64 m or increasing for around 60% and the average delay increasing from 7 s to 13.43 s or increasing around 95%. It will be concluded that the addition of toll road traffic is affecting the intersection performance.]]>
<![CDATA[Land Suitability for Ciplukan (Physalisangulata L.)Using Multicriteria Analysis ]]>
<![CDATA[Nur Adliani]]>;
<![CDATA[Nirmawana Simarmata]]>;
<![CDATA[. Heriasnyah]]>
<![CDATA[ Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia ]]>
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DOI: 10.35472/281454
<![CDATA[The study investigated the suitable land of Ciplukan (Physalisangulata L.), which is a source of medicine ingredient to lower the level of blood sugar. Ciplukan generally grows among wild plants. The objective of this research is to describe the characteristics of the land to grow ciplukan based on the land suitability. The class of land suitability is obtained by matching the physical character and chemistry from botanical garden land and overlaying appropriate maps with the requirements of growing ciplukan with ArcGIS. The class of suitability land acquired in the Botanical Gardens that earned the score of 6 to 8 is an area that does not suitable to cultivate the plants ,with the size 52,189Ha. The score of the lesser appropriate classification was of 9 to 11 with the size of area 180,966Ha. The score of 12 has the size of area 49,111Ha. The score of 12 fulfills 4 parameters. If all the land were suitable, then it would worth 3.9 to 11. The parameters which were not corresponding at all is the value of score was 6 to8. The actual area at the Botanical Garden land was 80 Ha. So, some parts of the land can be used to grow ciplukan.]]>
