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INSIST (International Series on Interdisciplinary Research)

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Published by Universitas Lampung

ISSN : - EISSN : 25028588 DOI : -

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INSIST is an International online journal which publishes innovative research papers and critical reviews in the field of engineering and interdisciplinary science researches. It focuses on but not limited to Electrical and Telecommunication, Mechanical Engineering, Chemical and Environmental Engineering, Civil and Architecture, Geophysics Engineering, Material Physics, Applied Sciences and Biomedical Engineering. The over-riding criteria for publication are the originality, scientific quality and interest to the interdisciplinary research.

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Articles 15 Documents

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Search results for , issue "Vol 1, No 1 (2016)" : 15 Documents clear

Internet Traffic Measurement: Trends and Impact to Campus Network Gigih Forda Nama; M. Komarudin; Mardiana Mardiana; R Arum Setiapriadi; Hery Dian Septama; Meizano Ardhi Muhammad; Titin Yulianti
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract— University of Lampung (Unila) is an Institution of Higher Education located in Bandar Lampung. Since 2016, Unila has deployed Internet Access Management (IAM) to guarantee the healthiness of the campus network, as well as to enhance the effectiveness of the bandwidth usage. This study focused on internet traffic measurement, conducted in Unila’s campus network during February 1 until February 29, 2016. Overall, this study shows user behavior on their application. The trend data of monthly most popular URL Categories accessed by users was; 1st Computers & Technology with 30032328 hits or 39.1%, the 2nd was Search Engines & Portals with 14214611 hits or 18.5%. There were around 30-40 % of internet traffic was use for Streaming Media activity, it proves that the existence of Streaming Media Activity in Campus Network which contribute to network congestion. During a month doing internet measurement, we identify the most active device/user that are the 1st was Aruba Wireless Controller with total traffic flow 40.45%, the 2nd was CCR-1 with 26.2%, the 3rd was CCR-2 with 16.9%, and the 4th was Digital Library Server with total flow was 0.6%. Monthly uplink traffic total flow was 5889.92 GB while downlink traffic total flow was 61041.35 GB. We made a recommendation to Unila management for implementing traffic provisioning especially on streaming media activity specific on access to Google Global Cache (GGC), to overcome network congestion during peak time period on working hours. Keywords—internet access management, internet traffic measurement; traffic trend

Counting the Number of Disconnected Labeled Graphs of Order Five without Paralel Edges Wamiliana Wamiliana; Amanto Amanto; Grita Tumpi Nagari
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract— Given a graph G(V,E) with n vertices and m edges, where every vertex is labeled, there are a lot of possible graphs that can be constructed, either connected graphs or disconnected, simple or not simple. A graph G(V,E) is called as a connected graph if there exists at least one path between every pair of vertices in G, and otherwise, G is disconnected. A graph G is called as a labeled graph if every node/vertex and or every edge is labeled. In this research, we are concerning about a graph where every vertex is labeled. Parallel edges are two edges or more which have the same end points. In this research we found that the number of disconnected labeled graph without parallel edges for and can be obtained with the following formula: {{. is the number of disconnected labeled graph without parallel edges for and . Keywords— counting graph, labeled graph, disconnected, parallel edges

Strengthening of Nurul Ilmi Mosque with Concrete Jacketing Fauzan Fauzan; Febrin Anas Ismail; Siska Apriwelni; Imelia Faradiza; Zev Al Jauhari
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract—Nurul Ilmi moesque is one of building for worship located in University of Andalas. In 2008 the new building of mosques was designed using previous indonesian seismic code, SNI 1726: 2002. The right side of the new mosque was constructied in 2009. Due to the limitation of the budget, the construction of the left side of the mosque was continued on 2014. However, a new indonesian seismic code SNI 03-1726-2012 was established and the designed mosque should be revised based on the new indonesian seismic code. Since the right side of the mosque was designed by using the old seismic code (SNI 1726: 2002), so it is necessary to evaluate the strength of the structure by using the seismic code (SNI 03-1726-2012). Based on the analysis results, it was found that the right side of the building structure is not strong enough to resist the combination loads acting on the structure, especially the earthquake load. Therefore, it is necessary to strengthening (retrofitting) the right side of the building structure before connecting with the left side of the building. In this study, the concrete jacketing method was used to the retrofit the column structure. The results show that the jacketing method is effective to increase the capacity of the column and reduce internal forces and displacements that occur in the structure of the mosque, so the structure can resist the working loadsKeywords—column, concrete jacketing, earthquake, displacement, strengthening.

Support Vector Machine (SVM) For Toddler’s Nutritional Classification in Palu City Andi Hendra; Gazali Gazali
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract—Toddlers are groups who are vulnerable about the health nutrition problems. Nutritional status of children is one of the indicators that can describes the level of social welfare in the city. Nutritionists are the people that can determined the nutritional status. The problem that arises is the limited number of the nutrition experts in each area, this problem causes the children’s malnutrition in the Palu city is detected in very slow condition. The aims of this study is to help the health professionals in the health centers or the hospitals to determine the children’s nutritional status computerized, so the malnutrition problem in the Palu city can be detected earlier. Besides that, to help the government in policy making about nutrition of the toddlers in Palu city. This study uses a Support Vector Machine (SVM) which implemented in computer-based software application to analyze nutrition of the toddlers.Keywords—Nutrition, Software, Support Vector Machine (SVM), Toddlers, Palu city.

Implementation of User Anthropometry Bale “Sakenem” Buildings based on Height Bataran and Height Bale-bale in Singapadu Tengah Village, Gianyar I Wayan Parwata; Anak Agung Gede Oka Wisnumurti; Ni Wayan Meidayanti Mustika
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract—Bale Sakenem Building is one of the buildings that were in the order of Traditional Bali House. This study identified Bale Sakenem building located in the Central Singapadu Village and that is observational research by using cross sectional design. This research was done by means of retrospective observational that is considered the factor that can affect Bale Sakenem Building Anthropometry. From the data analyze of research identification, 30% height bataran not in accordance with the average size of an ideal height bataran and 20% height bale-bale also not in accordance with the average of the ideal height bale-bale in Bale Sakenem building in the Central Singapadu Gianyar have not yet undertaken anthropometry users and more dominant to follow measurements that based on the size of Undagi, as a consequence there was uncomfortableness. Height bataran and height bale-bale is based on the tolerance of anthropometry using the 95 percentile and 5 percentile for tolerance limitKeywords—Anthropometry, Balinese Architecture, Culture, Percentile, User Comfort.

A Model-Based Simulator for Content Delivery Network using SimEvents MATLAB-Simulink Erwin Harahap; Icih Sukarsih; Gani Gunawan; M Yusuf Fajar; Deni Darmawan; Hiroaki Nishi
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract—Simulation methodology has become popular among network researchers due to the availability of various sophisticated and the flexibility of simulation packages in model construction and the result’s validation. The objective of our research is to introduce a discrete simulator tools known as SimEvents toolbox that runs on MATLAB-Simulink with the advantages of graphical user interface (GUI) system and a total customized simulator design. In this paper, we design a model-based network simulator named as “CDNlink”. CDNlink is designed based on a queuing model and functioned to study the content delivery networks (CDN). As a result, we have designed the simulator for Client, Router, DNS, and Server. Moreover, we simulate the CDN system for packet round trip time (RTT) and server’s queue length.Keywords—simulink, content delivery network, model-based simulation, simevents, cdnlink.

Surface Roughness Values of Magnesium Alloy AZ31 When Turning by Using Rotary Cutting Tool Gusri Akhyar; Suryadiwansa Harun; Arinal Hamni
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract - Magnesium and magnesium alloys is one of materials that worldwide used on automotive components due to very good strength to weight ratio, resistant to corrosion, lighter compare to steel materials. Other than that magnesium has an advantage in easy to form and good machinability. Nevertheless, magnesium known as metal which is easy to burned because of magnesium has low melting point. To maintain magnesium from burning quickly when proses machining, it needs to use coolant or lubricant to reduce temperature. Using of coolant when machining process can reduce temperature on cutting tool and work piece material, while using of lubricant can reduce friction between the cutting tool and work piece mateial. However, using of coolant and lubricant can harm for the environment and also coolant difficult to destroyed. Therefore, an alternative method to reduce the temperature when machining of magnesium alloy is using the rotary cutting tool system. In the rotary cutting tool system, the cutting tool has a time to experience cooling in the period time. Other than aspect of temperature, surface roughness values are representative of surface of quality of produced componens. In this research, surface roughness value of magnesium alloy of AZ31 observed in ranges of work piece cutting speed of (Vw) 25, 50, 120, 160, 200 m/min, rotary cutting speed of (Vt) 25, 50, 75 m/min, feed rate of (f) 0,05 and 0,10 mm/rev, and depth of cut of 0.2 mm. The turning process was done by using two kinds of diameter of rotary cutting tools are 16 and 20 mm, and without applying of coolant. The results of the research showed that the minimum surface roughness value of machined surface was 0,62????m by using insert with diameter of 16 mm, while the maximum surface roughness value of machined surface was 2,86 ????m by using insert with diameter of 20 mm. This result stated that the increase in the diameter of rotary cutting tool gives a significant effect on the produced surface roughness value. Factor of feed rate also gives a significant contribution on the surface roughness value of machined magnesium surface. The increase in feed rate generated significantly surface roughness value as long as the trials experiments. The produced surface roughness values inversely proportional to the cutting speed of rotary cutting tool.Keywords - magnesium, rotary tool, surface roughness, turning.

The Comparison of Bundle-Pricing Scheme Models Using Quasi-Linear Utility Function Fitri Maya Puspita; Evi Yuliza; Muthia Ulfa
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract—— In this paper, we formulate bundle-pricing modified models involving pricing scheme based on quasi-linear utility function as one of internet service provider (ISP) main goal is to maximize their profit. The model formed by setting cost of creating bundle and total reservation price of customer i’s. LINGO 11.0 is used to solve the models to obtain the optimal solution. The solver result for each case either from original model and modified model are compared to obtain the optimal solution. The result showed that for each case based on 3-pricing schemes which are flat fee, usage based and two-part tariff, ISPs gain the same profit with the original model but ISPs save more time in terms of resources rather than the original model. ISP’s may use this model as consideration for setting cost of creating a bundle and total reservation price of customer in maximizing profits and also to provide better service quality for customers with their preferences exactly.Keywords— bundle pricing, utility function, pricing strategies, optimal solution.

The influence of magnetic field on the growth of tomato (Lycopersicum esculentum) infected with Fusarium oxysporum Rochmah Agustrina; Endang Nurcahyani; Eko Pramono; Ika Listiana; Eko Nastiti
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract— This Previous research suggests that magnetic field (MF) can enhance seedling vigor, growth, and the production of tomato plants. This study examines the influence of MF on the growth of tomato infected by Fusarium oxysporum, fungal pathogen that causes Fusarium wilt in tomatoes. This factorial study arranged in a stripe split plot design. Factors tested consists of long exposure to the MF, M (control; 7'48 "; II'42" and 15'36 "), how to infect fusarium, F (through soaking the seeds and by infecting fusarium through the stem at the age 28 days after sowing (das), and soaking the seeds, S (soaking and without soaking for 15 minutes before MF treatment). Each unit of experiment was repeated 3 times. Parameters measured were percentage of germination, growth rate based on plant height, and fresh weight. Observations were made on the plant until 42 das. Data were analyzed of variance followed by the least significant difference (LSD) test at α = 1 and 5%. The results showed that the interaction between MF and fusarium (MxF), fusarium and soaking (FxS), and MF, fusarium, and soaking (MxFxS) did not produce a different response on all parameters measured. Differences in response to the treatments derived from the treatment of MF (M), Fusarium (F), and the treatment interaction of the MF x soaking (MxS). The MF (M) and the interaction of MF and soaking (MxS) significantly effect on all parameters measured at each measurement. The treatment of Fusarium (F) significantly effect on germination percentage, and fresh weight at 7 das.Keywords— magnetic field, fusarium, germination percentage, growth rate, fresh weight.

Library Automation Systems Integration (Case: ELIB and SLiMS) Meizano Ardhi Muhammad; Mardiana Mardiana
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Abstract—The Library automation system help reduce much work need to be done by doing monotonous routine jobs with the help of technologies such as Barcode and RFID. Unila Library as the pioneer of RFID technology implementation in Lampung province face challenge in migration. Unila Library used SLiMS Library Automation System to manage collections, which use mainly barcode to identify collection. RFID uses allow collections to be scanned in gate and warn librarian. Unfortunately, SLiMS doesn't support SIP2 protocol which is needed by RFID devices (gate, kiosk) to function properly. Therefore, a solution must be made to address the migration of data and support SIP2 protocol. ELIB is a library automation software which support SIP2 protocol. So, library automation systems integration which synchronize both database in ELIB and SLiMS to keep up to date data and allow support for SIP2 protocol must be made in the form of middleware. Some of difficulties arise in integration was the development of both library automation systems which require fine tuning everytime update occurs and both systems in active use. Benchmarking is done to find anomaly and disreparancies of data. And, because the integration system is build as middleware, it remain flexible and open to future development. It can be concluded, Library automation systems integration require vigilance and keen observations into minuscule level especially because both systems are so different.Keywords— library, RFID, ELIB, SLIMS, SIP2, middleware

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