bluuebunny/crossref_metadata_2025_split huggingface dataset:
Distribution Testing On The Average Room Occupancy Rate Of Hotels By Province In 2013-2017
Authors: Siregar Khawarita , Ishak Aulia , Esterlita Marcelina 
Published: December 2020

Abstract
Data on Average Room Occupancy Rate of Hotels by Province in 2013-2017 obtained from the Central Statistics Agency. The Average Data of Hotel Room Occupancy Rate by Province in 2013-2017 is continuous data. This data will be tested using 4 types of continuous distribution data, normal, exponential, lognormal, and gamma distribution. This data processing uses Minitab software to determine the opportunity value of BKA and BKB. This distribution test uses a hypothesis where if there is no data in accordance with the distribution used, further data processing will be carried out to determine what type of distribution is in accordance with the continuous data using EasyFit Software. Meanwhile, if the data matches more than 1 distribution, the coefficient of determination testing will be done to find out which distribution is the closest to the distribution test results.
Analysis of Crude Palm Oil Production Yield Results at AA Company
Authors: Ishak Aulia , Michael  
Published: December 2020

Abstract
Company can not be separated from the production process in carrying out its business activities. Therefore, the company strives for the production process to be carried out properly, economically, and to prevent obstacles to the company’s operations. In the production process carried out by AA Company, production operations are the responsibility of the Refinery and Fractionation division. Observations were made at the Refinery Plant 1, where the division has an interest in carrying out a production schedule related to the processing of Crude Palm Oil (CPO) into Refined Bleached Deodorized Palm Oil (RBDPO) with Grade Commerce. Based on field observations, one of the problems that occurred was the RBDPO yield target that was not reached. The company set an RBDPO yield target of 94.50%. But in practice, the yield of RBDPO produced is still below the target set. The idea of problemsolving provided is to analyze the root cause of the problem with Cause and Effect Diagrams, analyze the magnitude of potential failures in the process by using Failure Mode Effect Analysis and provide alternative corrective actions using the 5W + 1H method.
Orange Software Usage in Data Mining Classification Method on The Dataset Lenses
Authors: Ishak Aulia , Siregar Khawarita , Aspriyati  , Ginting Rosnani , Afif Muhammad 
Published: December 2020

Abstract
Data Mining is a process that uses statistical, mathematical, artificial intelligence, and machine learning techniques to extract and identify useful information and related knowledge from various large databases. Decision tree is a very interesting classification method that involves the construction of a decision tree consisting of decision nodes which are connected by branches from the root node to the leaf node (end). The problem that will be examined in this study is about classification of dataset lenses obtained from using orange software. The method used in this paper is the method of classification process is performed on a decision tree using the orange software. Tree construction begins with the formation of roots (located at the top). Then the data is divided based on attributes that are suitable to be used as leaves. Decision rule information is to make decision rules from trees that have been formed.
Model of Integrated Production Allocation for Minimizing Distribution Costs in a Cement Company
Authors: Pamungkas YP , Ciptomulyono U , Karningsih PD 
Published: December 2020

Abstract
This paper, in order to get a gain after the acquisition process with whose carry out by the company and the competitor. Post-acquisition, to analyse getting better efficiency, to do so a process restructuring in an existing distribution network is consolidated and integrated by the existing distribution network with the distribution network of the newly acquired company in supply chain management. The acquisition process is expected to expand the network in the domestic market and increase the efficiency of supply chain costs by planning production allocations in an effort to optimize distribution costs more efficiently. The purpose of this work is to determine the optimal configuration of production and distribution networks with operational and financial constraints. A linear programming model is proposed to describe and to optimize the problem. By considering various parameters of the model such as plant capacity, production costs, and distribution costs, this model is hoping to be able for determining where the production of cement facilities is carried out to meet the demand for cement in the market to obtain more efficient distribution costs.
Determination of Cocoa Powder Particle Size Distribution by Using the Buoyancy Weighing-Bar Method
Authors: Tambun R , Silalahi  , Hasibuan R , Alexander V 
Published: December 2020

Abstract
This study aims to examine the determination of the particle size distribution of cocoa powder by using the Buoyancy Weighing-Bar Method (BWM) with ethanol as a liquid medium. Laser diffraction and settling balance method are used as a comparison method in this study. The weighing bar used in BWM consists of cylindrical aluminium with a size of 10 cm x 210 cm. The measurement process is operated at ambient temperature and the measurement is carried out for 180 minutes. The results obtained indicate that the particle size distribution of cocoa powder can be measured by using BWM, and the results obtained are proportional to the measurement results by using the settling balance method, while laser diffraction is not suitable for measuring cocoa powder particle size distribution due to the shape of the cocoa powder that is not a sphere.
Mechanical, SEM and FTIR characteristics of bioplastics from mango seed starch with nanoparticle zinc oxide as filler and ethylene glycol as plasticizers
Authors: Lubis Maulida , Harahap Mara B , Ginting Muhammad H S , Sebayang Alissha T , Chandra Toni , Wangi Yoeselyn , Jose  
Published: December 2020

Abstract
Plastic products are difficult to be degraded and cause environmental problem. To overcome this, plastic material is made from biodegradable natural resource which is called bioplastics. The aim of this research is to know the potency of mango seed starch, nanoparticle zinc oxide as filler and ethylene glycol as plasticizer. The mango seed starch size of 5 grams, with variation of zinc oxide filler mass of 0; 3; 6 and 9% (wt) and ethylene glycol 0; 20; 25; 30 and 35% (wt). The bioplastics films was analyzed the mechanical properties include tensile strength, elongation at break, SEM and FTIR. The optimum result obtained at nanoparticle ZnO concentration 6% and ethylene glycol 25% with tensile strength 3.78 MPa and elongation at break 2.23%. The SEM and FTIR result prove that addition of filler and plasticizer gives better surface morphology and dispersion in the bioplastics.
The Carbon Black-Loaded Styrene-Butadiene Rubber in The Addition of Palmitamide: The Cure Characterization
Authors: Khosman H , Hafni K N , Surya I 
Published: December 2020

Abstract
This study investigated the influences of palmitamide on the cure characterization of carbon black (CB)-loaded styrene-butadiene rubber (SBR). The SBR was loaded with CB at a fixed loading (thirty phr) and the palmitamide was loaded into the CB-loaded SBR compounds with varied doses from two to eight phr. The palmitamide was prepared from the chemical reaction between urea and palmitic acid at an appropriate condition of reaction. The influences of palmitamide additions on the scorch time, cure time and cure rate index/CRI of CB-loaded SBR were investigated. It was examined that the palmitamide caused an enhancement in the rate of the cure process on the SBR compounds. The palmitamide decreased both the times to scorch and cure times but increased the CRI. The bigger the palmitamide doses caused in the lower were the scorch and cure times but caused in the higher was the CRI. The enhancement in CRI was attributed to the role of palmitamide as the supplementary accelerator for the CB-loaded SBR compounds. The amine content of palmitamide enhanced the CRI.
Mechanical Properties of Microcrystalline Cellulose from Coconut Fiber Reinforced Waste Styrofoam Composite : The Effect of Compression Molding Temperature
Authors: Nasution H , Suherman P , Kelvin  , Winny  
Published: December 2020

Abstract
Coconut fiber contains 36-43% of cellulose and has a potential to hydrolyze into microcrystalline cellulose. Microcrystalline cellulose (MCC) from coconut fiber can be used as composites filler. The objective of this research was done to find out the best composition of MCC and compression molding temperature for styrofoam composites filled MCC. MCC composition was varied from 0-10% (wt). Molding temperature was varied from 110-150°C. The results exhibited that addition of 8% (wt) of MCC with 130°C of molding temperature have showed the best mechanical properties such as tensile, flexural and impact strengths. The study has indicated that MCC filled the pores of styrofoam and some of the pores have been lost due to proper heating during molding.
Durability of Repetitive Polypropylene Recycling: Challenge on Securing The Mechanical Properties
Authors: Hyie Koay Mei , Budin S , Halidi S N A M , Fohimi N A M 
Published: December 2020

Abstract
Most of the products used in our daily lives involve plastic. However, plastic pollution can cause an incalculable environmental crisis. Hence, an extensive effort has been made towards recycling plastic since the last decade. The challenge on plastic recycling is to secure the mechanical performance of the products. In this study, the durability of repetitive polypropylene processing from ten to fourteen cycles is investigated. Optimum parameters such as moulding temperature, injection pressure, holding pressure, holding speed, holding time, and cooling time were used to successfully manufacture extensive recycled polypropylene by injection molding process. The tensile and bending strength of polypropylene were managed to maintain above 30 MPa even at fourteenth cycles. The bending modulus was secured at least 1.0 GPa for the polypropylene after recycled for fourteen times. Besides, the recycled polypropylene could sustain more loading in bending mode rather than longitudinal tension tight. The percentage of shrinkage was less than 3%. This little shrinkage gave an assurance to the dimensional stability even though the reprocessing was at high level until fourteenth cycle. Scanning electron microscopy (SEM) images evident the homogeneous mixing and brittle manner of polypropylene during extensive recycling.
Disturbance Management Strategy in the Food Supply Chain in The Middle of Pandemic COVID-19
Authors: Nasution Andri , Novia Azmi Nurul , Putriya Ananda Fany , Azalia Miranda 
Published: December 2020

Abstract
The COVID-19 pandemic raises problems for the industry on a large scale. Among them, the food supply chain has experienced disruption due to government policies such as the closure of several road accesses and WFH activities as a form of handling COVID-19. This paper aims to analyze disruption and find coping strategies in food supply chain activities. By using the SWOT analysis method. Based on the IFAS-EFAS calculation, it is known that several disturbances that occur in the food supply chain, such as limited transportation access, inadequate production, a decline in value inventory turnover and needs space increased. The output of this research is a coping strategy, namely online marketing and maintaining the stability of food commodity prices, providing innovative rules regarding agricultural land, maintaining product quality and efficient use, increasing the scale of production and distribution as needed, and creating farmer empowerment programs.
Fiber Reinforced Polymer Composite as a Strengthening of Concrete Structures: A Review
Authors: Yuhazri M Y , Zulfikar A J , Ginting A 
Published: December 2020

Abstract
For centuries, concrete is the main material most widely used in a building. The strength and durability of this material will decrease over time due to several factors that influence the mechanism of its structural characteristics. Although the compression strength is excellent, it is weak in tensile. Fiber reinforced polymer (FRP) composites are widely used as an alternative material to replace metal-based engineering materials. This material has properties such as lightweight products, low production costs, easy to form, high tensile and flexural strength, and elastic. The purpose of this review paper is to provide information about the application of FRP composites as reinforcement of concrete structures either as repairs or new structures. Initially, FRP composite materials were used as reinforcement structures for reinforced concrete column-beam joints. The resulting structure has increased the flexural ability due to the load given. The addition of natural fiber (jute) to concrete also increases in the hardness of concrete. Other investigations regarding the application of FRP composites in concrete to improve strength performance are discussed in this paper. Finally, the technique of wrapping FRP composites in concrete in an effort to improve the performance of the resulting structure is also discussed in the paper.
Stay Home Practical: Simulation Model On Ginger As The Samples On Dryer Naturally Operation Module
Authors: Haryanto Bode , Tarigan Marvino Brayn , Br Sitepu Natasya Arihta , Bukit Rina Br 
Published: December 2020

Abstract
During the COVID 19 virus impact to the most area in Indonesia, most of the teaching and research activities doing at home. The idea to force the activity at home by giving the idea to do research in drying natural operation. It is the sample of how students can apply the drying operation at their home. The idea to dry the Ginger as the material sample was applied and have given the result on the size or shape of the sample variation. The operation time and temperature impact on drying the sample. Drying at the open area and naturally were give the information have impacted the rate of drying. In this study, the type of shape was the most impacted in comparing the temperature and operation time.
Experimental study of solar adsorption refrigerator using a parabolic collector
Authors: Putra M F , Sitorus T B , Hutasoit M B , Sinurat N S , Siahaan P B M 
Published: December 2020

Abstract
Several alternative energy sources have been developed; one of them is solar energy to overcome the future energy crisis. Solar energy can be used as a source of heat energy, used very much, one of which is on the adsorption cycle refrigerator. The adsorption cycle refrigerator tested has three main components, namely the parabolic collector, condenser, and evaporator. In this research, the three main components are made of aluminum because they have a high thermal conductivity value and are resistant to corrosion due to water or refrigerant used. The pairs of adsorbent and refrigerant used were active powder carbon of 10 kg and methanol of 3 liters. The research purpose is to determine the maximum temperature at the collector, the minimum temperature in the cooled water, collector efficiency, and the COP value of the system. The experiment procedure is by heating the solar collector from 08.00 AM-05.00 PM (GMT+7), while the natural cooling process takes place from 05.00 PM-08.00 AM (GMT+7). The results obtained that the maximum temperature of the collector is 126.56°C. The minimum temperature of the water is -0.09°C, the maximum parabolic collector efficiency is 53.39%, and the maximum COP value is 0.000956.
Influence of Location and Capacity of Distributed Generations on Voltage Sags Mitigation Using Alternative Transient Program
Authors: Hardi Surya , Hutasoit S M , Purnamasari Fanidia 
Published: December 2020

Abstract
This paper presents the influence of distributed generation (DG) location and capacity for mitigating voltage sag caused by faults. The voltages sags are caused by the faults were simulated on the IEEE 13 bus system for single line to ground close to 650 and three-line phase faults at bus 646 using Alternative Transient Program (ATP) software. The voltages are monitored at every buss system. The DG is installed for one DG, two DG and three DG as the alternative. The DG locations are installed based on trial and error. DG total capacity is 2/3 load total installed in the system. As the alternative DGs installed viz. for one DG at Bus 611 with the capacity of 2.5 MVA; Two DGs at Bus 611 and Bus 680 with their respective capacities of 1.25 MVA; Three DGs are located at Bus 611, Bus 680 and Bus 633 with their respective capacities of 1 MVA. The results show that DG location placement in many locations gives the better results for mitigating voltage sags.
Graph Based Method for Lathe Machining Part Model
Authors: Zubair A F , Nazir B , Hemdi A R , Yusoff H , Ismail H , Othman M , Kataraki P S , Panjaitan N , Ishak A 
Published: December 2020

Abstract
Process planning is about bridging design to manufacturing in an effective way. Although many methods can be used to recognize CAD and manufacturing feature, one way to do it is by Graph-based Method. Attributed Adjacency Graph (AAG) is develop for each feature of a part model in this case to ease of planning the machining of the part. Each machining feature will have a unique constructive sub-graph (CG). This paper proposes CG for lathe machining feature. The proposed CG is useful for future development of a generative process planning system of a lathe machining.
Analysis of Fuzzy AHP-TOPSIS Methods in Multi Criteria Decision Making: Literature Review
Authors: Ishak Aulia , Wanli  
Published: December 2020

Abstract
With the development of technology and times, we have faced various alternative problems. The problem of making decisions is one of the problems that is often encountered in everyday life. In the matter of decision-making, there are several methods that can be used, one of which is Multi-Criteria Decision Making (MCDM). MCDM is a method to make decision based on theory, process and analytical methods that involved uncertainty, dynamics and various aspects of criteria. This journal will discuss the use of one of the MCDM methods, namely Fuzzy AHP-TOPSIS. Basically, AHP breaks down unstructured situations into its components and organize these components or variables in a hierarchical order and assign a scientific value as a subjective assessment of the proportionate significance of each variable. Fuzzy theory is used to represent ambiguity, inaccuracies, lack of information, and partial truth. Then the TOPSIS method uses the principle that the preferred alternative must have the farthest from the negative ideal solution and the shortest interval from the positive ideal solution to find the optimal solution from the available alternatives.
Decision Support System for Selection and Assessment of Solid Waste Processing Technology from Oil Palm Industry using Analytical Hierarchy Process (AHP)
Authors: Ishak Aulia , bin Ali Amir Yazid , Budin Salina , Ginting Rosnani 
Published: December 2020

Abstract
The waste produced by the palm oil industry contributes greatly to environmental damage if it is not operated properly. Waste from palm oil processing consists of 70% of the amount of raw material which is almost half in the form of liquid. Over time the growth of the palm oil industry has always increased, therefore the waste from the palm oil industry will increase. The palm oil industry must have environmentally friendly solid waste treatment technology that is able to provide added value. There are many alternatives to treat the palm oil industry’s solid waste, from the most advanced technology to conventional technology. Decision Support Systems have been developed to assist companies in identifying, evaluating and choosing technologies for processing solid waste. In this study, three operations have been developed in MySQL, the database for waste treatment technology has criteria and sub criteria selection criteria using the DELPHI method; Introduction of criteria using the Analytical Hierarchy Process (AHP) approach. This study can assist in decision making and optimize the reprocessing of solid waste from palm oil mills.
Designing of integrated information system (IIS) scheme for private higher education in indonesia: a strategic plan
Authors: Idris Iswandi , Fajrillah  , Novarika Ak Wirda , Hastalona Dina , Syarifudin Yahya Afif , Marikena Nita 
Published: December 2020

Abstract
The private higher education (PHE) is now starting to intensify the use of IT (Information Technology). Often the activities conducted under conditions that are not ideal due to budget constraints. To develop the ICT (Information Communication Technology) systems in legalization efforts of private higher education is to encourage the use of software based on open-source software, the integration of all cross-data unit services within a more efficient organization to support the Decision Support System database and data warehouse, a service that is prioritized for all and access to all levels and access universally. Integration of both horizontally (between systems managing different areas) and vertically (following a structural hierarchical relationship). Placed within the framework of a holistic, top-down approach. Developed and implemented naturally, from the base (database infrastructure) grew (application and access). The PHE development done gradually evolved in different time frames, focus on procurement and IT facilities, both hardware and software. Focus on how to manage IT-based services. Focus on how to bring IT and internal seep into the organizational structure, and ultimately the transformation of the organization and the people in it. Stages of analysis can be defined with the Use Case diagrams, divided into several main modules.
Evaluation and Selection of E-commerce Service Quality Using Fuzzy AHP Method
Authors: Ishak Aulia , Wanli  
Published: December 2020

Abstract
In the era of rapid technological development, people use information and communication technology to buy and / or sell goods and / or services via the internet. Based on a survey conducted by the Central Statistics Agency (BPS), it shows that of all data collection efforts, only 15.08% were e-commerce businesses. This shows that the business done via the internet in Indonesia is still low. This can be caused by several obstacles, one of which is customer satisfaction. Customer confidence will be built when customer needs and satisfaction are met through quality standards. So that customer satisfaction becomes an important parameter in building a sustainable business. This research was conducted to evaluate and select the quality of e-commerce services using Fuzzy AHP. Determination of criteria and weight of criteria is built based on expert consensus using the Delphi method. After that, the consistency calculation is carried out using the AHP method. In the FAHP method, the weight calculation for each alternative is assessed. In the FAHP method, the highest order of weight values is Tokopedia (0.3680), Bukalapak (0.3190), Shopee (0.1735) and Elevenia (0.1394).