bluuebunny/crossref_metadata_2025_split huggingface dataset:
On Preparation of Advance Ceramic for Single-edge V-Notch Beam Fracture Toughness Test of ISO/FDIS 23146:2008(E) Standards
Authors: Gde Tirta Nindhia Tjokorda 
Published: July 2020

Abstract
With establishment of fracture toughness test for advance ceramic according ISO/FDIS 23146:2008(E) with the sample test of Single-edge V-Notch Beam/SEVNB, then the researcher related this activity should understand and able to realize how to prepare the sample of advance ceramic in order the requirements of the standard are fulfilled. In contrary with metals and polymers that usually easy to cut as the standard size for testing, the advance ceramics are found much more difficult to prepare since it is very hard and brittles. More even, specifically for fracture toughness test, the level of difficulty is added since the sharp initial crack should be introduced in the edge of the sample. This article introduce method on preparation of advance ceramic for the purpose of fracture toughness test completed with method to introduce the initial sharp V-notch crack which is valid and possible to be measured its length and diameter of the tip that yield valid result of fracture toughness test.
Viscosity of Mono vs Hybrid Nanofluids: Measurement and Comparison
Authors: Fadzli Khairil , Abdullah MZ , Mazlan NM , Mohamed AR , Ahmed Janvekar Ayub , Nasir FM 
Published: July 2020

Abstract
The authors aimed to look into the viscosity investigation of mono and hybrid Aluminium Oxide/Silicon Oxide (Al2O3/SiO) based nanofluids. The viscosity methods were carried out for mono nanofluids as well as hybrid nanofluid, which are suspended in base fluid (water). Both mono and hybrid nanofluids of Al2O3/SiO were developed in concentration, which vary from 0.01% to 1.00%. The methodology invoked for viscosity measurement was done by spindle rotation technique, which uses Anton Paar RheolabQC rotational rheometer at temperatures of 30 - 70 ° C. The results imply that viscosity of nanofluids was directly proportional to volume concentration and temperature.
Reducing Project Duration of An Apartment Project by Waskita Karya using Crashing Method
Authors: Ririh K.R. , Hidayah N.Y 
Published: July 2020

Abstract
This study is intended to calculate the fastest completion period of an apartment project in Medan by Waskita Karya. Since, Waskita Karya is a-projectbase state owned company, it is important to maintain its quality of every running projects. Apartment Project in Medan was potentially delayed and it would lead to a penalty from its project cost around Rp. 614.627.071.968. Project duration was 42 months. Several datas were gathered such as S-Curve, number of workers, and cost structures, also interviews. From Crashing Method calculation, this study shows that this project can be reduced optimally to 39 months but it would rise the total project cost to Rp. 618.665.777.827 which equal to price addition of Rp. 4.038.705.859
Calculation of Labor Amount with Theory of Constraints and Line Balancing Method in PT. XYZ Fish Crackers Factory
Authors: Gozali Lina , Jusuf Daywin Frans , Jestinus Alvin 
Published: July 2020

Abstract
The right amount of labor on work station is important to avoid uneven workload, that might reduce efficiency on production line, and cause bottleneck. Therefore, this research focus at searching the optimal amount of labor using line balancing and bottleneck that occurs on XYZ Fish Crackers Factory. Theory of constraints method is used to identify bottleneck, and line balancing method that will be used is Kilbridge-Wester, Moodie Young, Helgeson-Birnie, and J-Wagon. Fish cracker drying is the process that encounter bottleneck. The beginning line efficiency is 50.09%, with Kilbridge-Wester, Helgeson Birnie, and J- Wagon method, the line efficiency is 89.22%, and with Moodie Young method, the line efficieny is 89.45%. Therefore, Moodie Young method is the best method to apply, because it has the best result, with 89.45% line efficiency, 10.55% balance delay, 13.96% smoothness index, 20.3 minutes of idle time, 5 work station, and amount of labor needed is 10 person.
Implementation of Lean Warehousing to Improve Warehouse Performance of Plastic Packaging Company
Authors: Prasetyawan Yudha , Khairani Simanjuntak Alfia , Rifqy Naufal , Auliya Lulu 
Published: July 2020

Abstract
Warehouse activities affect the operations in the business process of a cosmetic plastic packaging company especially the production floor since the activities have connected each other. The company has problems in maximizing the storage space and eliminating the floor stock because of inaccuracy of warehouse stock data processing and inappropriate stock placement. So that, there are several types of waste in the warehouse activities from receiving, put away, storing, and order/material picking. The problem will be solved by using lean warehousing. The collected data of raw material storage, WIP storage and finished goods storage will be visualized using value stream mapping (VSM) and process activity mapping (PAM). Then, the warehouse performance is measured. From the VSM, PAM and performance measure, the waste can be identified. The wastes in the raw material storage are overproduction, inventory, defect, transportation, waiting, excess processing and motion. Wastes in WIP and finished goods storage are inventory, defect, transportation, waiting, excess processing, and motion waste. The improvement plans are to allocate the special stocks, subleveling the small quantity items, warehouse mapping based on FSN (Fast moving, Slow moving, and Non-moving) classification, creating warehouse regulation and improving transfer officer movement. The warehouse performance after improvement shows that the financial and cycle time indicators decrease while utilization, quality and productivity indicators increase. By using lean techniques, inventory accuracy can be increased, order picking errors can be reduced, processing time can be reduced, and warehouse space can be streamlined.
Simple automation for pinneaple processing combining with karakuri design
Authors: Prasetyawan Yudha , Arifiyana Agustin Atiya , Anggrahini Dewanti 
Published: July 2020

Abstract
The processing of pinneaple becoming fruitcake has been done for several years using manual process in a Small to Medium Enterprise in rural region. This rural region producing a huge number with less production value of pineapple as there is no modern industry. The purpose of this research is designing a simple automation to enhance the productivity with the combination of karakuri to achieve an efficient process. Efficient process means that to proposed system using a small quantity of energy. The system has been compared with the previous manual system and it is proven to have more productivity, easy to operate and using less energy (electricity in particular). In terms of quality, there is no more defect product such as overcooked so that the designed system is robust. The proposed system is also relatively inexpensive as it is used simple automation.
Comparison Study about Production Scheduling System from Some Paper Case Studies
Authors: Eliyanti Vania , Gozali Lina , Widodo Lamto , Jusuf Daywin Frans 
Published: July 2020

Abstract
Scheduling is one of the most important classes of combinatorial problems. One of the first problem to be studied in the scheduling theory is the problem of minimizing the makespan in flowshop. In flowshop, the products which is produced have the same sequences. The heuristic algorithms are the key to solving the problem with the optimal solution. To find or to approach nearer to the optimal solution, the meta-heuristic algorithms can be used and the heuristic algorithms as the first solution. One of heuristic algorithm that can be used is Campbell, Dudek and Smith (CDS). Also, the meta-heuristic algorithms that can be used are Tabu Search and Genetic Algorithm. The aim of this paper is to know the gap among the other methods in flowshop scheduling system to reach the optimum makespan.
Comparison Study of the Application of Line Balancing and the Theory of Constraint
Authors: Novelia Sagitta Jessica , Gozali Lina , Jusuf Daywin Frans 
Published: July 2020

Abstract
Bottleneck is one of the most important problems in the work station process. The problem that will be studied in bottleneck theory is minimizing bottlenecks at work stations that experience bottleneck constraints. Line Balancing is one of the main keys to solve the problem with an optimal solution. If not carried out the balance of the track it can lead to inefficiency of work in several work stations where between work stations with other work stations have unbalanced workloads. However, it may also be time-consuming, so we need a theory of constraint method to minimize costs so that the results are more optimal for the company. The purpose of this paper is to compare research using other methods in minimizing bottlenecks, optimal efficiency at each work station, and minimizing relevant costs.
The Identification of Risk Factors of Quality that Affecting Contractors’ Performance at XYZ Company
Authors: Rizky Tatimu Edward , Simanjuntak Manlian Ronald A. 
Published: July 2020

Abstract
In the implementation of construction projects often present several problems, both are technical and non-technical. Risk management is an activity carried out to minimize the risks that might occur in the project. Construction in the Green Office Park district owned by PT. XYZ gives trust to one of the leading contractors in Indonesia and assisted by other specialist contractors. Green Office Park was recognized for incorporating advanced green architectures to conserve energy, water and natural resources. This district is located on a land area of 25 Ha and there are 6 office buildings and a lifestyle mall with beautiful and unique concepts that have Green features, like Microclimate Optimization, Green Transport and Integrated Parking, and Sustainable Management Practice. During the construction of several buildings in this district, they often experience various obstacles and more or less have similar problems in every development in this district. The purpose of this study is to identify the risk factors of quality of the contractors’ work in the PT. XYZ. This study was examined based on various literature sources, namely: project life cycle, construction phase, risk management, quality management, the parties involved in the construction process, project performance, and various relevant research results. The research methodology is carried out by stages: discussing the problems that occur in the field, identifying research problems, preparing research instruments, analysing research problems and discussing the results of the research obtained. Through this research, resulted identification of risk factors of quality that affecting contractors’ performance at the XYZ company.
Risk Assessment Of Working Posture And Implementation Of New Workstation To Increase Productivity
Authors: Sukania Wayan , Ariyanti Silvi , Jayusman Michael , Rohana Nasution Siti 
Published: July 2020

Abstract
In the production process of plastic spoons, workers who run the separation process are working in a less ergonomic condition. In consequence, the production process lacks productivity because the task requires relatively longer time than it should. Utilizing Nordic Body Map analysis method, this study found that there are physical complaints among workers. More specifically, using Quick Exposure Score method, the exposure score on the separation station is at 59.09% and at 67.90% on the packaging station. Using REBA method of analysis, this research obtains REBA score at 10 on the separation station and 9 on the packaging station. Using WERA method, the last score on the separation station is at 40 and the packaging station at 33. The standard time based on the current workstations is at 127.97 seconds. Improvement is manifested by designing working tools. The implementation of the new tool results in the decrease of biomechanical complaints and exposure level at 49.38%, REBA score at 3, and WERA score at 26 on the separation, arrangement, and counting process. This research also results in WERA score at 25 during the process of inserting packing output. The total of standard time is reduced up to 62.10%.
Reducing of Defects in the Drug Tablets Production Process with DMAIC to Improve Quality – Study Case of Pharmaceutical Industry
Authors: Winatie Adha , Santoso Saroso Dana , Hardi Purba Humiras , Puspa Wirani Ayu 
Published: July 2020

Abstract
The high defect and unstable of defects the company in 2017 amounted to 0.27% while the amount allowed by this company was 0.10%. In This research was carried out in a Pharmaceutical Industry with the purpose of reducing the product spots drug tablets, the research method uses the DMAIC stages Define, Measure, Analyze, Improve and Control. The tools used are SIPOC diagrams, pareto diagrams, P charts, minitabs to calculate sigma levels and improvment with FMEA. The number of reject spots for tablets in 2018 was 0.28% and the sigma level was 4.63, then after analysis and DMAIC the reject rate was reduced to 0.0081% and sigma level 5.45.
Early Assesment Dyslexia
Authors: Wiryasaputra R , Williandi T 
Published: July 2020

Abstract
Early diagnosis of dyslexia disorders symptoms could minimize the disruption of children learning development and also help parents to give proper treatment for the children. The diagnosis process that has been done so far is mostly done manually that depends on the pediatric psychologist which is has limited number and relatively expensive. Therefore, the early diagnosis of dyslexia disorders symptoms is useful to make the diagnosis process easier and shorter. On this research, the researcher using the Dempster-Shafer method to detect three types of dyslexia disorders symptoms they are dyslexia, dysgraphia, and dyscalculia. The method was used to manage the dyslexia disorders symptoms in percentages and in this research the researcher had done a system test by comparing the diagnosis results from the system and the expert using ten sample cases, with 50% accuracy rate diagnose result.
Graph Model of Reporting Engine Performance Results in The Business Intelligence Process
Authors: Prasetya Adhi Bambang , Widodo  , Nanda Prasetya Dendy , Adjie Hamidillah 
Published: July 2020

Abstract
The testing process in several reporting engines is carried out in accordance with predetermined test parameters. Testing can be seen from aspects of compatibility, performance, and usability. The test results explain in detail about testing measurement techniques on the reporting engine in the business intelligence proces.
The test parameters use symbols and explanations in the table column. Symbols describe or summarize the explanations contained in the table. The research method used is an experiment where each symbol will be indicated by three colors, namely: green, yellow, and red. Each color has its own meaning. Green has the meaning that the reporting engine matches / meets the testing criteria. The yellow color means that the reporting engine is a bit suitable / only meets part of the testing criteria. The red color means that the reporting engine does not meet the criteria of testing. Next, the symbol will be used for graphics. The graph model illustrates the conclusions of the reporting engine testing from three aspects of compatibility, performance, and usability. The graph only strengthens information from the core table. Based on the graph, it can be concluded or obtained information about the performance of the reporting engine and simplifying the analysis process.
A review of attacks, objects, and mitigations on web services
Authors: Masrur Rauf Rafif , Eiffel Rivaldo Tubagus , Amiruddin Amiruddin 
Published: July 2020

Abstract
Web service is a technology that continues to develop until now. Web services are needed for the exchange or dissemination of information between applications through a computer network. Various methods have been developed to improve the performance and security of web services. However, the more the increasing performance of web services, the higher the level of vulnerabilities and threats. Some attacks often target on web services are Denial of Service (DoS), Structure Query Language (SQL) injection, and eXtensible Markup Language (XML) injection. There are also many methods or techniques that researchers proposed as mitigations for these attacks. In this research, a literature review has been carried out regarding attacks as well as objects and mitigation of such attacks on web services.
Climate Responsive Architecture in Jakarta’s Apartments
Authors: Tjie C , Lianto F , Priyomarsono N W 
Published: July 2020

Abstract
Almost every day, apartment buildings in Jakarta have to face a long hour exposure of solar heating which caused temperature gain inside the building. It creates a high room temperature and requires an air-conditioning system to reduce room temperature. This problem arises from the ineffective function of architecture design elements used. The method used in this research is literature study and analyze it with the case study of three apartments located in Jakarta. The principal design of climate-responsive architecture in Jakarta (tropical humid climate city) is a passive cooling strategy which used to prevent/avoid solar heat exposure and to release heat inside the building. There are two categories of design elements function used: 1) as building envelope/façade (such as shadings, ventilation, roof, and building materials) and 2) as building placement (such as building thickness and orientation, ventilations, building landscape, etc.). Three apartments located in Jakarta were analyzed with the findings, and the design elements used were found ineffective as climate filter in Jakarta (the three apartments still rely on air-conditioned systems-active cooling approach to reduce the transmitted solar heat and cooling rooms). The result of this study is a solution/recommendation for designing architecture elements that functioned as climate filter and have better respond to Jakarta’s climate.
Natural Lighting Analysis in Plaza Senayan, Jakarta, Indonesia
Authors: Gunawan Silvia , Widayati Priyomarsono Naniek , Trisno Rudy 
Published: July 2020

Abstract
As the development of malls went more advanced, there are malls in Jakarta that keeps up with the trend, while some others are left behind. A mall does not only function as a shopping center, while also catering for some other functions; to socialize, meeting place, hanging out, studying, and working. Visitors could experience something that couldn’t be obtained elsewhere. Lighting is the most important aspect in the interior design of malls, to create an ambience in order to increase sales. This research is conducted to study on the effect of skylight shapes to natural lighting distribution in Plaza Senayan. Qualitative & quantitative methods are used with explorative approach, along with real measurements in the areas of the shopping mall covered by natural lighting. Building orientation, building shape, skylight shape, natural lighting distribution, and lighting intensity are the indicators used in this study. Field exploration was analyzed with current codes, and a simulation was conducted using Velux Daylight software to see the lighting distribution as well as the solution. Research results show that there are areas that hasn’t fulfill the minimum lighting intensity requirement, areas with too much lighting, far from current standards. Results show that natural lighting distribution on square skylights are more evenly distributed than circular or hexagonal skylight shapes. This shows that skylight shapes does have an effect towards natural lighting distribution.
Prediction Analysis Of Criminal Data Using Machine Learning
Authors: Meiliana  , Trisnawarman Dedi , Choirul Imam Muhammad 
Published: July 2020

Abstract
The human-being life necessities have encouraged the commission of crime since ancient times. Nowadays, many crimes factor and techniques have developed in a more sadistic way, causing more victims and loss. The authorized parties need to find a way to minimize the commission of a crime. This research aims to utilize linear regression algorithm for analyzing crime data to generate predictions for crime, which shows a quite reliable result. The result can be used by the authorized parties to help them prevent and handle upcoming crime.
The use of MNCP-5 particle transport program for calculation of flux radiation exposure in object surface
Authors: Pandiangan Tumpal , Bali Ika , Silalahi Alexander R.J. 
Published: July 2020

Abstract
Calculation of particle or photon flux in three dimensions is needed to facilitate the observation and the real approach of radiation to the observed object. Calculation of the flux of radiation received on an object’s surface can be done using the MCNP-5 particle transport program (Monte Carlo N particle-5). In this study, the radiation source is a neutron particle emitted from the center of the ball with a radius of 0.5 cm with 16 MeV of energy on an object’s surface of an iron ball with a radius of 0.5 cm. The source of neutrons and irradiated objects is in a cube vessel, with a side length of 10 cm and 20 cm. This simulation can be useful as a model for calculating the impact of radiation exposure on the surface of objects in human organs. Flux and the magnitude of the radiation particle’s track on the object’s surface are calculated based on changes in media material, media size and number of radiation particles (NPS). The results showed that the flux and particle track received by the surface of an object were greatly influenced by the media material and media size and the NPS value of the radiation particles.
Cloud computing model in higher education
Authors: Mulyawan Bagus , Kosala Raymond , Ranti Benny , Harso Supangkat Suhono 
Published: July 2020

Abstract
Currently, higher education is institutions that should be managed as a global business institution. Higher education should improve continually its business processes according to the demands of increasing its stakeholders. of the problems faced in the development of educational, activities if related to the use of information technology for each service in higher education for stakeholders is the issue of available funds. Cloud computing also has advantages related to infrastructure and maintenance and increases operating efficiency. Most institutions are currently moving towards cloud computing technology to reduce operational costs. For achieving these objectives, the institutions need to be supported by reliable technology. This study aim to propose cloud model for education and IT Governance conceptual framework for Cloud Computing model adoption, Tarumanagara University as a study case.
Water flow motion in the vehicle of main channels
Authors: Bazarov D , Markova I , Raimova I , Sultanov Sh 
Published: July 2020

Abstract
The article considers a numerical study of the movement of water flow in the Amu-Bukhara Machine Channel (ABMCh-Bukhara region). Water intake to the inlet channel is carried out from one of the most muddy rivers in Central Asia in a damless manner, therefore, ensuring the flow of clarified water into the anterior chambers of pumping stations is an urgent task. A numerical study is a study of the hydrodynamic parameters of the flow and, based on the data obtained, the developed recommendation is the aim of this work. The determination of the main hydraulic parameters of the flow moving in the riverbed by numerical research is accepted as a research method. According to the developed model, consisting of hydrodynamic equations, based on the law of conservation of momentum and mass, data on the dynamics of velocities of the ABMCh supply channel are obtained and zones of uneven flow in the channel are determined. A recommendation has been developed that allows quasi-uniform movement, which helps to prevent the formation of deformation of the supply channel of the pumping station and the entry of suspended and bottom sediments into the chamber of the pumping station.