bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of Traffic Organization of loading ground based on transport loss
Authors: Yang Mu 
Published: June 2020

Abstract
From the point of view of the railway company, the consignor and consignor to establish a cost optimization target system to study the loading area traffic organization optimization problem. Considering the transportation cost of the railway company and the cargo delivery side of the transport loss, this paper combines different characteristics of different cargo vulnerability and constructs a loading area traffic organization optimization model to minimize the total cost of the integrated economy.. Finally, a corresponding example is given, and the model is solved by using LINGO software.
Research on planning and design of airport airfield area
Authors: Ke Li , Bin Shao 
Published: June 2020

Abstract
Airport status in city construction, regional layout, and transportation systems is analyzed. Influence of operation and management in military-civilian airports is pointed out from the perspective of airport planning and design and operation management. The airfield planning and design are analyzed from the capacity of runway, taxiway, and apron. The displaced threshold can meet the needs of the aviation business, while taking reconstruction and expansion of airport.
Evaluation of compressive strength investigation on job mix test object and core drill test object
Authors: Sitorus Torang , Jaya Indra 
Published: June 2020

Abstract
The test sample in the core drill is a hard concrete test (ASTM C-39) method by taking samples of concrete cylinders from areas of compressive strength is doubtful. Sampling is done by drill tool which drill is in the form of “pipe” from diamond, so that the concrete sample is obtained in the form of cylinder. Building made of concrete construction, it must be required corresponding the required strength through planning determined by testing the quality of concrete on the job mix SNI test standard, but in the process of concreting that does not be corresponding the method and the conditions that must be obeyed often results in strength the concrete construction that has been built does not achieve the desired strength. When the existing concrete building strength checks are carried out, it is necessary to evaluate how much the error or the difference in the results of the test on the concrete quality of the planning and quality of hard concrete that is ready to be built. For this reason, one of the hard concrete strength tests is done by using the core drill method.
Analysis of energy efficiency in the Krueng Raya TBBM Pertamina building using the energy audit method
Authors: Sitorus Asril , Yurisman Edy , Susilo Hendra , Ambarita Himsar , Nur T B 
Published: June 2020

Abstract
Energy audit is a technique to determine anytime, according to, and how to use energy in its facilities, and to take advantage of opportunities to improve efficiency. In this study an audit was conducted in the Pertamina TBBM Krueng Raya office building. This study discusses calculating the Energy Consumption Intensity (IKE) of a building, the thermal comfort level of a building so that it can realize a green building and be applied to other BBM terminal installations. The results of survey data, the pattern of electric energy use combined with Krueng Raya TBBM is 42.617 kWh/year in which the building area is 259.18 m2. The results of study, obtained IKE at the Krueng Raya TBBM building amounted to 164.43 kWh/m2/year. Although by default the category of saving building criteria, but the visual comfort aspect questions SNI 03-6197-2000 and thermal SNI 03-6390-2000 is not allowed.
Effect of recycle ratio on methanogenic anaerobic digestion of palm oil mill effluent (POME) in a stirred tank reactor assisted by ultrafiltration membrane into biogas in transition conditions
Authors: Sidabutar R. , Trisakti B. , Husin A. , Irvan  
Published: June 2020

Abstract
The purpose of this study is to increase the conversion of biogas production using digester type CSTR by recycling the effluent through ultrafiltration membrane at transition conditions (45°C). In this research was investigated the effect of recycle ratio on the pH profile, alkalinity, production, and biogas composition produced. Initially, the suitable loading up was determined by varying HRT at 25, 15, 10, and 6 days in 2 L CSTR with agitation rate 250 rpm, pH 7 ± 0.2, and at temperature of 45°C. Furthermore, the effect of the recycle ratio was determined by varying the recycle ratio, i.e. 0, 15, and 25%. Analysis of total solids (TS), volatile solids (VS), total suspended solids (TSS), volatile suspended solids (VSS), and chemical oxygen demand (COD) were carried out to study the changes of organic compounds that were converted into biogas. Gas analysis is also carried out by measuring the volume and composition of the biogas produced. The highest total biogas production was achieved at 25% recycle ratio of 33.15 x 10-2 L/g.VS.day, with the composition of methane (CH4), carbon dioxide (CO2), and hydrogen sulfide (H2S) were 79; 19; and 0.006% respectively.
The capability of buoyancy weighing bar method in determining the separation time of biodiesel and glycerol at various concentrations
Authors: Tambun R , Banjarnahor I J , Silaen A N 
Published: June 2020

Abstract
This study aims to examine the ability of the buoyancy weighing bar method in determining the separation time of biodiesel and glycerol at various concentrations. The comparison of biodiesel and glycerol concentrations studied are 99%: 1%; 98%: 2%; 97%: 3%; 96%: 4%, while the type of rod used is made of iron with a diameter of 10 mm and length of 210 mm. This research is conducted at room temperature and using gas chromatography analysis result as a comparison. The results are also compared with aluminium rods with diameter of 5 mm and 15 mm diameter, also compared with aluminium rods with length of 160 mm, 110 mm, and 60 mm diameter. From the results obtained, it is known that the buoyancy weighing bar method can predict the separation time at various concentrations of biodiesel and glycerol.
The effect of car drivers risk perception and driving behaviour towards accident risk: a case study
Authors: Nurul Huda Listiani , Ismail Said 
Published: June 2020

Abstract
A traffic accident is an unexpected and unintentional event on a road involving vehicles with or without other road users resulting in human casualties and/or property losses. Traffic accidents generally occur due to various factors such as the user’s inadvertent actions, violations, road conditions, vehicle conditions, weather, and obstructed views. Medan City has a high accident rate of 5,686 cases caused by driver factors. The problem under study is the alleged relationship between risk perception and driving behavior. The purpose of this study is to look at the relationship between driving behavior and risk perception that can cause traffic accidents. Data collected using the instrument in the form of a driving behavior questionnaire and risk perception questionnaire. The analysis is done by statistical analysis through SPSS software to test the validity and reliability of the data, radar map analysis to see the attributes of driving behavior with the highest mode, the analysis of the correlation of driving behavior and risk perception with the SPSS software as a whole, and to analyze the Structural Equation Model path (SEM) to see the partial relationship between variable attributes in a multivariate manner. The results of this study indicate that there is a significant relationship between 3 (three) driving behaviors that are using a cell phone, violating traffic rules, and overtaking other vehicles to the driver’s risk perception so that it has the potential to cause a traffic accident and it can be concluded that the hypothesis the researcher accepted (H0).
INALUM environmentally friendly strategy by reusing spent anode (butt) management
Authors: Antonio Sinaga Dolfy 
Published: June 2020

Abstract
To implement vision 2025, INALUM should pay attention to environment aspect and one of the strategies is reusing waste material resulted after the process which in this case reusing spent anode or well known as anode butt. INALUM produces + 40,000-ton butt/year as accounted to production cost that is classified to spend money. Anode butt has contaminated Cryolite (Na3AlF6) during the electrolysis process thus changing the quality. To optimize production cost, those butt materials are reusing as raw material to produce anode. Usage of anode butt as technically lead to deleterious anode quality and electrolysis cell performance. Nevertheless, by internal strategy and well operated by INALUM, not significantly impact gained after using anode butt as anode raw material. Butt cleaning process on the Rodding plant plays an important role in butt quality. By through butt cleaner which has 2 compartment rooms that will be passed through to be cleaned. First room is cleaning room and next room is air blow room are able to produce efficient anode butt to be reused as anode raw material. Butt quality produced by butt cleaning system is highly better than typical range and hence anode quality specifically residual reactivity (RRCO2 and RRO2) still acceptable to INALUM standard. By using 30% butt ratio to produce anode, INALUM can save production cost by + 180 USD/Anode and that is huge saving to average anode production 112,000 anode/year.
Coffee bean skin waste extraction for silk dyeing
Authors: Luftinor  , Herlina Netti , Santika Kurniati Ami 
Published: June 2020

Abstract
Coffee bean skin waste has been used as a coloring agent in the process of dyeing silk threads by varying the concentration of coffee bean extract extracts in 4 treatment stages, each 50 g/l, 100 g/l, 150 g/l and 200 g/l and varying the fixation solution lime also in 4 levels of treatment each 25 g/l, 50 g/l, 75 g/l and 100 g/l to obtain 16 kinds of silk thread colors. The parameters tested included color aging, color fastness to washing, rubbing, sweat and light. The aim of the study was to obtain the best treatment from the coloring process carried out, while the overall test results met the SNI quality requirements for how to test color fastness for washing, sweat and rubbing (BSN, 1989), except the results of the test for color fastness to light. The best treatment was obtained at the extraction concentration of 150 g/l coffee beans and the concentration of lime fixation solution 75 g/l produced a color aging K/S 20,93, color fastness to washing value 3-4 (enough) for discoloration and 4 (good) for color staining, color fastness to rubbing value 4 (good) for dry rubbing and 3-4 (enough) for wet rubbing, color fastness to perspiration value 4-5 (good) for acid and base rubbing as well as resistance color fastness to light values 2-3 (less).
Adsorption capacity of heavy metal cadmium using white sand as adsorbent
Authors: Haryanto Bode , Butarbutar Michael JC , Sinuhaji Tubagus R F. , Tarigan Krissandarta , Sinaga Chairina 
Published: June 2020

Abstract
The aims of this study are to know the adsorption ability of white sand from Medan Indonesia to adsorb cadmium ions (Cd2+) from the solution at pH 4.5. The variables were on different size of white sand, the rpm of shaker and Cd concentrations. The first step was to determine the optimum contact time and adsorption capacity. The adsorption capacity on 70 ppm Cd ions with 40 mesh sand size and stirring speed 150 rpm is 38% after 100 minutes operation time. Impact of sand size 10 mesh, 20 mesh and 40 mesh is possible to increase the adsorption capacity. Increasing the rpm will impact to interaction stability the Cd ion on sand surface. White Sand has ability to interact with metal ions dissolve in solution.
Effect of various commercial of Na2SiO3 on compressive strength of Fly ash-based alkaline activated mortar
Authors: Elbasir Otman M. M. , Mijarsh M.J.A. , Azmi Megat Johari Megat , Mashri Mohamed O. M. , Karolina Rahmi , Arifin Ahmad Zainal 
Published: June 2020

Abstract
This study aimed to assesses the effect of various commercial Na2SiO3 on the compressive strength (CS) of alkaline activated fly ash mortar (AAFM). The three mixture of alkaline activated mortar (AAM) C1, C2 and C3 were prepared from the source material of fly ash and alkaline activator solution (AAS). The initial AAS was comprised of NaOH (10M) and various grade of Na2SiO3. The various grades of Na2SiO3 were characterized by their SiO2/Na2O molar ratio of 2.0, 2.2, and 3.3, respectively. The sample from each mixture was characterized based on the CS and microstructure changes using useful tools of XRD and FTIR analysis. The results obtained indicated that the highest CS achieved among the three mixtures were 48.23MPa of mixture C2 prepared with SiO2/Na2O molar ratio of 2.2. This was mainly due to higher binder formation (N-A-S-H gel type) and a higher rate of reaction of the main source material. This result is in line with XRD and FTIR analysis results finding.
The effects of aminopropyltriethoxy silane on tensile and rheometric properties of silica-filled natural rubber vulcanizates
Authors: Surya I. , Ismail H. 
Published: June 2020

Abstract
By using a semi-efficient vulcanization system; the effects of aminopropyltriethoxy silane on rheometric and tensile properties of silica-filled natural rubber (NR) composites were investigated. The NR composites were filled by silica filler at a fixed loading at 30.0 parts per hundred rubber (phr). The aminopropyltriethoxy silane was incorporated into the silica-filled NR composites. The aminopropyltriethoxy silane loadings were 1.0, 3.0, 5.0 and 7.0 phr. It was found that aminopropyltriethoxy silane functioned as a co-curing agent which reduced the scorch and cure times of the silica-filled NR composites. The higher the aminopropyltriethoxy silane loading, the shorter the scorch and cure times were. It was also found that aminopropyltriethoxy silanecaused in modulus and tensile improvements, exclusively up to a 5.0 phr of loading. The 5.0 phr of aminopropyltriethoxy silane was the optimum loading.
Utilization of Cocoa (Theobroma cacao L.) pod husk as fillers for bioplastic from Jackfruit (Artocarpus heterophyllus) seed starch with Ethylene Glycol Plasticizer
Authors: Maulida  , Maysarah Siti , Jose  
Published: June 2020

Abstract
Bioplastic is environmentally friendly plastic designed to facilitate the degradation of enzymatic reactions of microorganisms such as bacteria and fungi. This research was aimed to obtain the effect of cocoa pod husk addition on mechanical properties of bioplastics included tensile strength, elongation at break, functional group using FT-IR, surface morphology using SEM and biodegradation. Cocoa pod husk is a filler in production of bioplastic research. The production of bioplastic method that used in this research was casting method. Variation of jacfruit seed starch and cocoa pod husk composition ratio were 5:5, 6:4, 7:3, 8:2, and 9:1 (w/w) and variation of ethylene glycol were 0,2; 0,25; 0,3; 0,35; and 0,4 (v/w). The best condition of bioplastic was composition ratio of jackfruit seed starch and cocoa pod husk 7:3 on addition of ethylene glycol was 0,2 (v/w) with tensile strength 15,40 MPa, elongation at break 1,24%. From the result of FT-IR analysis indicated O-H group, C-H group, C=O group and C-O group on bioplastics. The result of mechanical properties were supported by Scanning Electron Microscopy (SEM) showed the bioplastic with cocoa pod husk as filler and ethylene glycol as plasticizer have the fracture surfaces were compact. From the result of biodegradation test, bioplastics was completely degradated within 14 days in the soil.
Starch based adhesives made from durian seed through dextrinization
Authors: Nuryawan Arif , Ridwansyah  , Mulya Alamsyah Eka , Widyorini Ragil 
Published: June 2020

Abstract
In order to utilize durian seeds waste, production of wood adhesive made from them was carried out. Method of dextrinization was applied and characterizations of the adhesive’s properties were evaluated, namely specific gravity, viscosity, gel time, pH, clarity, color, and microscopic description including the particle’s size of the adhesives. The properties were compared to other starch based adhesives, such as sago and tapioca. For further utilization as wood adhesive, application for particleboard binder was investigated. Parameter of internal bonding of the board then was evaluated. Result of this work showed fundamental properties of dextrin adhesive made of durian seed were similar with sago and tapioca’s dextrin excluding the colour. Values of internal bonding of particleboard were varied that indicated many factors affected the quality of particleboard for instance the distribution of the adhesive.
Silica-filled styrene-butadiene rubber in the existence of palmitamide: vulcanization properties and reinforcement index
Authors: Surya I , Edwin  
Published: June 2020

Abstract
By applying one semi EV vulcanization system; the influences of palmitamide on vulcanization properties and reinforcement index of silica-filled styrene-butadiene rubber (SBR) compounds were observed. The palmitamide was lab-prepared from urea and palmitic acid and added into the silica-filled SBRat1, 3, 5 and 7phr. It was revealed that the palmitamide was a curative material which decreased theoptimum cure timebut increased the maximum and change in torques of the silica-filled SBR compounds. The bigger the palmitamide loading, the shorter was the optimum cure time. It was also revealed that palmitamide was an extra plasticizing material which decreased minimum torque. The reinforcement index, tensile moduli and tensile strength were increased up to a 3.0 phr of palmitamide concentration. The enhancement in those properties was due to the enhancement in crosslinks as well as cure state of the compounds of silica-filled SBR.
Design of monitoring and automation systems for greenhouse environment based on IoT
Authors: Heri  , Nasution Rian K. , Guptan Billie C. , Larosa Dody K. O. , Sofhani Destri , Siagian Hendrik , Perangin-angin Despaleri , Dodi Suryanto Eka 
Published: June 2020

Abstract
In this paper, the greenhouse is controlled by a microcontroller module unit. Some sensors installed to detect soil moisture, temperature, and light intensity. The sensor measurement will be sent to the server via a microcontroller and displayed to web pages. It will control a pump, fan, and LED for adjusting the environment in the greenhouse. On the automatic controller, a pump installed for the moisture of soil, fan for temperature and humidity and LED growth if the lighting is lacking. The test from the sensors can run well, if the soil moisture below 40%, a pump will be automatic on. For temperature above 31°C, two fans will on. For light below 50%, LED will on. The system can control fans by dht11 temperature for 90%. The LDR can control LED for 85%. The soil moist can control a pump for 80%. The greenhouse can still run well in maintaining appropriate conditions on the plant. With the advancement of technology, we can control and monitor greenhouses using IoT.
Identification of factors affecting a green industry: a literature review
Authors: Aryani Siregar Sophia , Napitupulu Humala , Ginting Rosnani 
Published: June 2020

Abstract
The definition of the green industry, sustainable industry or other definitions have a diverse definition, so that this term has a comprehensive dimension. The concept of the green industry is not only focused on eco-friendly industrial development, but also in the implementation of integrated, holistic, effective and efficient industrial systems. The development of the green industry concept creates numerous studies, including in the manufacturing world, and it is known as sustainable manufacturing. The International Standard Organization (ISO) as an international institution on standardization also encourages every company to have a balance focused on sustainable growth, environment, and community welfare (sustainable) which is covered by ISO 9000, ISO14000, and ISO 26000. The objective of this research is to expose and clarify the factors that may affect the green industry. Factors affecting the variables can be analyzed to facilitate the implementation of the green industry concept in the industrial world. The stages of this research include several steps, i.e. in the early stages, conduct the collection of regulations, articles, and journals, and then create a resume and classify these factors. The most common factors are waste, energy consumption, and water utilization.
Design of logistics information system in the finished product warehouse with the waterfall method: review literature
Authors: Heriyanti Friska , Ishak Aulia 
Published: June 2020

Abstract
The process of sending and loading finished goods is very important. According to some experts, transportation activities spend 44% of the total cost. Even in Indonesia transportation costs can reach more than 60%. In practice, one way of saving on transportation costs can be done by minimizing the waiting time for loading finished products in the warehouse. The slow delivery of information from the logistics department to the warehouse can cause high load times for finished products. This can lead to delays in product delivery to consumers. The method used in this paper is the Waterfall method. The Waterfall method provides a software flow approach in sequence or sequentially starting from analysis, design, implementation, verification, and maintenance phase.
Iventory policy for multi item products by short expiration period
Authors: Nasution A A , Rizkya I , KSyahpturi  , Mariana RR 
Published: June 2020

Abstract
Inventory planning is an importantpartin the industry. For industries that produces product with short expiration period, such as the food industry, product expiration period is an important factor that cannot be released in determining the inventory model. Small and Medium Enterprises (SMEs) in the food industry produce the product has a short expiration period of 3 days. Products that have exceeded the expiration period will be returned to the industry and will bear the product expiration costs. The SMEs obtain the expiration costs of IDR 1,518,800 with a total expired product of 600 units. SMEs have not considered multi-item inventory systems. Order policy conducted by single order system. Therefore, efforts should be made to reduce the quantity of expired products, and find out the optimal order quantity and time of ordering goods together (joint order). The optimal order quantity planned with the EOQ method. The result indicate thatoptimalquantity of orders on lapis legit as many as 60 units,30 units of Caramel, 54 units of Sponge cake, 6 units of Brownies and 108 units of Bika Ambon, frequency of delivery 28 times in a month with a total inventory cost of IDR 4,548,044.