bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of WBS Dictionary and Checklist Based On WBS (Work Breakdown Structure) on Support Facilities in Dam Construction Works For Safety Planning
Authors: Azzahra B F , Supriadi L S R , Latief Y , Muslim F 
Published: December 2020

Abstract
The massive resource infrastructure development such as dams is a strategical choice made by Indonesia government considering there are still a lot of water resources that have not been used optimally. Dams construction itself is a complex works because it consists of several buildings and support facilities no exception which has a vital role in the main dam construction stage. The planning must be done thoroughly and clearly because it can affect the opportunities and risks of work accidents. Work accidents can result in losses, both in terms of cost and time so as to disrupt the success of the project. Therefore, we need further development based on WBS (Work Breakdown Structure) which is standardized by making a WBS dictionary and checklist. By using qualitative approach, it is expected that this WBS development can be a consideration for making safety planning in dam supporting facilities so that a whole support facilities dam construction run as well by minimizing work accidents during the construction process
Floating Neighbourhood to anticipate Jakarta Flooding
Authors: Victorianus Donny , Widayati Naniek , Supriyatna Eddy 
Published: December 2020

Abstract
The purpose of this paper is to offer alternative design solutions for the Kampung Muara Baru residence in Jakarta. Rapid groundwater extraction, population growth, infrastructure and construction development is causing land subsidence at an alarming rate. Thus, the capital city of Indonesia is on constant alert of potential flooding. Jakarta municipal government set policies under the Jakarta Coastal Defence Strategy to mitigate flood and urban planning. One of the major acts is the construction of the giant sea wall along the northern coast of Jakarta. However, the already built sea wall structure is showing signs of failing and cracking because the subsidence continues. In the meantime, report is saying the residence of Muara Baru still continue to experience flooding. The residents still have to raise the structure of their houses anyway possible to cope with the raising of the flood level. The finding suggests that vernacular, under the umbrella of sustainable and environmentally friendly (green design) should be considered as a better strategy towards the flooding disaster as it embraces nature to solve environmental issues and degradation.
Reintroducing Urban Wildlife through Green Façade Technology in Vertical Housings
Authors: Sanjaya Rio , Hendra Siwi Samsu , Lianto Fermanto , Martinus Bambang S. 
Published: December 2020

Abstract
This paper explores the importance of implementing green spaces not only horizontally, but also vertically, particularly in residential buildings. Cities around the globe, including Jakarta have planned to provide decent number of open spaces. However, this two-dimensional way of planning is not sufficient in providing living spaces for wildlife. Through literature and case exploration method, this paper argues the importance of green façade implementation of residential buildings.
The effectiveness of special carriages for female in protecting female train passengers
Authors: Putranto L S , Tajudin A N 
Published: December 2020

Abstract
PT Kereta Commuter Indonesia (KCI) is one of PT Kereta Api (KA) Indonesia managing Greater Jakarta Commuter Trains. PT KCI started to provide special carriages for females during peak hours in 2011. Up to December 2019, PT KCI has 1,100 units of electrical carriages. In 2019, the average daily passengers were 979.853 on weekdays with maximum daily passengers of 1,154,080. PT MRT Jakarta started to provide special carriages for females during peak hours in May 2019, about 2 months after its opening of phase 1a from Lebak Bulus to Bundaran HI. By operating 16 transit units the average daily passengers are 83,000 with maximum daily passengers 93,000. The availability of special carriages for females was intended to protect female passengers from criminal acts and sexual harassment. However according to previous research an media coverage, the special carriages were not consistently provide a positive impact to female passengers. This research is intended to evaluate this issue and provide recommendations regarding this service.
Suggestion of Raw Material Warehouse Layout Improvement Using Class-Based Storage Method (case study of PT. XYZ)
Authors: Gozali Lina , Anne Marie Iveline , Natalia  , Michele Kustandi Graziella , Adisurya Evelyn 
Published: December 2020

Abstract
PT XYZ is a manufacturing company engaged in advertising and producing signage. The problem that occurs in the raw material warehouse and has no fixed rules in raw materials placement. This study aims to redesign the layout of raw material warehouse for signage manufacturing company to reduce the distance of raw materials movement and raw materials arrangement. The method used in this research is a class-based storage method. The improvements of raw material warehouse layout applied by considering the order of activities, class formation, current warehouse area, and calculating the total distance of the movement. Based on the data calculation results and improvement reduce the space of warehouse requirement for amount 23,98% to 16.12%. The distance of raw materials movement also decreased, from 755.211 m to 522.587 m. First layout alternative gives the best solution that will reduce material handling costs, will reduce the distance of raw materials movement, and will reduce the time of raw materials movement.
Application of MRP System for Control of Raw Material Inventory with EOQ Lot Sizing
Authors: Jonathan Christifan Andre , Gozali Lina 
Published: December 2020

Abstract
PT. Skala Maxima Griya Workshop 1 is a company who produces TV cabinets. Raw materials stored in Workshop 1 warehouse are very piling up to over stock. Forecasting is done using a method that is in accordance with the request pattern. Then the best forecasting method is chosen based on MSE, MAD, SDE, MAPE, ME, and MPE the smallest. Forecasting results are used to create a MPS. The data from the MPS is used to calculate safety stock and make product MRP. The results of MRP products are used to calculate gross requirements, lot sizing, and MRP of raw materials. This research uses lot sizing technique EOQ. After calculating the results obtained that the selected forecasting method is DES with alpha 0.1. The safety stock calculation also shows good results where the safety stock that must be prepared by the company is not too much the majority of value if in the round up is 1. The MRP calculation with lot sizing EOQ also shows a good thing where there is a savings in raw material costs of Rp 10,800,000 .00 or 54.18% after using this method.
Line Balancing Analysis on Finishing Line Dabbing Soap at PT. XYZ
Authors: Alexandra Stephanie , Gozali Lina 
Published: December 2020

Abstract
PT. XYZ is a company that engaged in cleaners and detergent industry. The unbalance of the production line which is caused by the unequal of work responsibility distribution in each work station that caused the performance of line balance doesn’t work properly. With line balancing in production system will increase the efficiency of production. Line balance method that used to solve these problems is Rank Positional Weight method, Kilbridge-Wester method, Largest Candidates Rules, and Moodie Young method. Beginning of efficiency is 55.73%, balance delay is 44.27%, and smoothness index is 3.96 seconds with 5 work stations. By using the Rank Positional Weight method, Kilbridge-Wester method, Largest Candidates Rules, and Moodie Young, obtained efficiency results of 69.66% and balance delay of 40.34% with a total of 4 work stations. The results for smoothness index using Rank Positional Weight method and Moodie Young is 2.96 seconds, while Kilbridge-Wester method and Largest Candidates Rules is 2.675 seconds. Therefore, Kilbridge-Wester method and Largest Candidates Rules is the best method because the efficiency increased by 13.93%, balance delay decreased by 3.93%, and smoothness index decreased by 1.285 seconds from the beginning line.
Aerodynamics Analysis of Mobil Irit Tarumanagara using CFD Method
Authors: Kesuma Poppy , Darmawan Steven , Halim Agus 
Published: December 2020

Abstract
Aerodynamics on vehicles plays an important role in increasing the efficient vehicles. Nowadays, research in the field of aerodynamics of four-wheeled vehicles is carried out with the concept of optimization of the geometry shape of the vehicle. Some studies found that the best form in the aerodynamic aspect is the streamlined form, because it has the lowest resistance coefficient value, which is 0.04. Previously, the body of Mobil Irit Tarumanagara designed conventionally in Eco Vehicle concept, using experiments method. The experiments method is very complicated and inefficient, because engineers must draw the designs first, mock- up making, making negative molds, and then mold-casting. Aside from the processes, the aerodynamics performance of Mobil Irit Tarumanagara need to be analyzed. Therefore, this study will analyze the aerodynamics performance of Mobil Irit Tarumanagara using CFD (Computational Fluid Dynamic). CFD simulation will be done on 3D on 3 different body models and 5 speed variations: 1.39 m/s; 2.78 m/s; 4.17 m/s; 5.56 m/s; and 12.5 m/s. The mesh used is in tetrahedral form with a total of 76752 nodes in body no. 1; 55439 nodes in body no. 2; 42551 nodes in body no. 3. The results of the simulation presented by two flow parameters; velocity and pressure which shows the best body model is body 3, because it has the most aerodynamics performance, especially at the front and back of the body. The air velocity at front reaches 9.387 m/s; and vortices at the back flows in 3.271 m/s. This results serve as a reference for development on Mobil Irit Tarumanagara’s body model
Face Anti-Spoofing Method with Blinking Eye and HSV Texture Analysis
Authors: Hadiprakoso Raden Budiarto 
Published: December 2020

Abstract
A face recognition system should recognize faces and detect spoofing attempts with printed face or digital displays. A straightforward method of spoofing prevention is to analyze life signs such as eye blinking. However, this method is vulnerable when dealing with video-based replay attacks. For this reason, this paper proposes a combined method of blink detection with HSV (Hue, Saturation, Value) texture analysis. The anti-spoofing method is designed with two modules, the blinking eye module that evaluates eye openness points and the HSV texture module, which evaluates the texture of the color space from the input media. The test data is taken from the NUAA Photograph Imposter database. The results show that the designed model successfully recognizes 100% spoof-attack without exception.
Flow investigation of cross-flow turbine using CFD method
Authors: Aditya Sardjono Joshua , Darmawan Steven , Tanujaya Harto 
Published: December 2020

Abstract
Cross-flow turbine is one of prime mover type that is simple, capable to extract water power and easy to be manufactured. The runner is working at 2 stages. The need of high momentum has lead researchers to design water nozzle, blades, as well as the set-up between nozzle and runner. High momentum water nozzle and cross-flow runner has been designed individually with the same design criteria. Unfortunately, experimental testing may not gain specific flow pattern inside the nozzle and the runner. The purpose of this study is to investigate the flow pattern inside the nozzle, runner using CFD method, Ansys 2019 R3 academic version. The CFD simulation done 3-dimensionally with 5 nozzle inlet velocity variations: 2 m/s, 3 m/s, 4 m/s, 5 m/s and 6,487 m/s. The fluid is assumed to be 1 phase, using mesh with 17.750 nodes, inlet fluid pressure 1,05 Pa, and temperature 24,85°C. The results showed that the lowest velocity and pressure for variation 1 at 1st stage (v1) = 6,65 m/s and (p1) = -11931,5 Pa, and the highest velocity and pressure at 1st stage (v5) = 21,72 m/s and (p5) = -127521 Pa. At 2nd stage, variation 1 and 5 resulting velocity (v1) = 1,78 m/s and (p1) 593,264 Pa, (v5) = 5,83 m/s and (p5) = 6360,32 Pa respectively. The main different of the flow pattern between 5 inlet velocity variations is the final flow thickness inside the runner get thicker at higher velocity, which is assumed to gain more rotational velocity.
Exploration of the Security of Free Data Encryption Applications for Cloud Storage
Authors: Hero Ramadhani Eka , Kabetta Herman , Amiruddin Amiruddin 
Published: December 2020

Abstract
Cloud storage has become an urgent need in the digital age, especially for companies with high level of work collaboration and mobile workers. To prevent data in cloud storage from being accessed illegally, the data must first be encrypted before being uploaded. However, encrypting data separately with cloud data storage media is considered to be less efficient and less secure. To that end, several data encryption applications designed specifically for cloud storage appeared in the market. However, which application is suitable for your requirement, needs to be further investigated. For this premise, in this research, an exploratory study of the security of several free applications of data encryption called Boxcryptor, Cryptomator, and nCrypted Cloud was conducted based on security parameters defined in ISO/IEC 25010. The results showed that two of five security parameters, integrity, and authenticity, are not satisfied by all the applications being reviewed, but Cryptomator outperformed the other two applications.
Critical buckling load analysis on spherical shells under various geometric imperfections
Authors: Darmawan Liliek , Tedianto Leo S 
Published: December 2020

Abstract
The strength of shell structures is mainly determined by their ability to resist buckling. However, the presence of geometric imperfections – a condition which the geometry is no longer the same as the original condition – significantly deteriorates the critical load and often leads to catastrophic failure. Ratio between the actual critical buckling load to the theoretical prediction is called knockdown factor. The study aims to analyse the critical buckling load on spherical dome elastic shells under various geometric imperfections. This study was conducted into several thicknesses (10, 16, 20, 37, 50 mm) and fixed base radius of 4000 mm. Analyses of linear buckling and nonlinear static are performed and aided with finite element program using MIDAS FEA. The result of this study reveals that the critical buckling load decreases sharply in the beginning of imperfection, then reach for quite slow progression until a constant value of Kd = 0.1. In addition, the higher minimum knockdown factor is obtained as the shell thickness increases.
Optimalization Injection Moulding Parameter Process Using General Factorial Design in Small Medium Enterprise Industries
Authors: Laricha Salomon Lithrone , Kosasih Wilson , Ricko  
Published: December 2020

Abstract
Small and medium scale industries that are newly developed have many obstacles due to their ability and experience compared to other large industries. Plastic bowls for collecting rubber latex is one of the products that made from the injection moulding process. The company wants to improve its competitiveness by reducing raw materials used along with considering the quality of the products produced, but due to lack of information, this process is carried out trial & error. This study aims to determine the combination of parameters that can minimize the net weight of the product but still meet the product strength standards, the method used in this study is general factorial design because this method can investigate the effect of each factor and its interactions as additional information. In the analysis of variance (Anova), the temperature barrel in this study is a factor that has a contribution of 88.41% and 90.66% for the net weight and tensile strength of the product. The optimum conditions for this product are A3B1C1D1 by using the regression equation, the net weight of product is 17.3gr with product tensile strength 938,285N.
Automation systems in automatic assembling gear shaft output as car gearbox part at PT. Matahari Megah
Authors: Raynaldo Kevin , Darmawan Steven , Halim Agus , Nugroho Asih 
Published: December 2020

Abstract
This study is an observation and analysis about automatic assembling gear shaft output as car gearbox part that made at PT. Matahari Megah as a result of research. That automation product can reduce the assembly time from about 5 minutes to less than 45 seconds. Then the objectives in this case study are to describe assembly processes, how to choose censoring systems properly, and give recommendation in calculating compressive force for servo press mechanism. Automatic assembling gear shaft output has four main assembly stations consists of station OP 10, OP 20, OP 30, and OP 40. One of the most important element at that product is censoring system mounted at station check for checking the workpiece properly. The recommendations given are about the acrylic plate mounted at station check to reduce the amount of photoelectric sensor and equation for calculating compressive force for pressing gear and bearing to the output shaft appropriately.
Quality Control on Bucket Production Process Using Quality Tools Method (Case Study: A Medium Sized Company)
Authors: Handriany Avriana , Kosasih Wilson 
Published: December 2020

Abstract
This study aims to identify and solve the root causes of the defective products in the injection production line in a company that produces bucket and pipe-related products made from plastic ores. In order to maintain the quality of their products, this company has to figure out what to do in order to pay attention more in their actions to minimize the defects occurred from the production process. Good quality products are also very important to maintain the good relation with their customers. The samples for this research are taken directly from the field and analyzed using the quality tools method which are control chart and pareto diagram, also an addition method of the five-whys analysis to figure out the root causes. Based on the research results, the defective products that occurred in the production process are still in control but still needs to be improved right away. Another result also shows that the root causes are categorized to four groups varies from man, machine, method, and material. Therefore, there are two ways to overcome this problem: preventive and repressive action. The results of this study can be used as a reference in the future for a quality control applied in various companies.
Deep Excavation in Very Soft Soil Using Cross Wall as Lateral Support
Authors: Widjaja Oktaffian , Anwar Makarim Chaidir 
Published: December 2020

Abstract
Deep excavation in areas with very soft clay deposits need a good soil retaining system. Using diapraghm wall as soil retaining system for deep excavation is a good choice. Diapraghm wall is expected to limit the movement that occurs in the walls and avoid leaks that may occur in retaining system, this is needed to minimize damage to adjacent buildings. The top down excavation method by utilizing the basement floor as lateral resistance can be carried out to reduce the movement that occurs on the ground. In very soft soil areas with excavation distances to neighbors very close, the movement on the ground must be limited to minimize damage to adjacent buildings. Cross walls can be used to reduce the movement that occurs on the ground. Analysis finite element using the 2D Plaxis program was carried out to investigate the performance of the retaining wall. From the results of the analysis conducted shows that using a cross wall at a location below the raft pile can reduce the movement that occurs in the retaining wall and the excavation stage can be reduced. The results of this study can be used as a reference in the development of solution lateral support of soil retaining system in deep exaction especially needed in very soft soil condition.
Classification of Fertilizer Using OpenCV Based on Color Characteristic
Authors: Shannich Charlie Jovahn , Wulandari Meirista , Nurwijayanti  
Published: December 2020

Abstract
The agricultural industry is one of the most important sectors for a country because its supports food production. One of the agricultural industries that can increase food productivity is the fertilizer industry. Fertilizers have many varieties. The variant of a fertilizer can be identified by its color. There are 3 types of fertilizers such as NPK fertilizer, Calcium fertilizer and Potassium fertilizer. These fertilizers have different colors. NPK fertilizer has blue color, Calcium fertilizer has yellow color and Potassium fertilizer has red color. Red, Green, Blue (RGB) color spaces and Hue, Saturation, Value (HSV) color spaces are used as extraction of color features on fertilizers which used as fertilizer color features. The color characteristic of the fertilizer is used to classify fertilizer. This paper aims to classify fertilizer based on its color. Fertilizers that have been successfully classified are displayed on the monitor screen. There are 75 fertilizer samples which consists of 3 types of fertilizers and 25 samples for each type of fertilizer used in this paper. Test results show that fertilizer can successfully identified 3 types of fertilizer based on its color. The value accuracy is obtained 100% in the RGB color with the range of RGB color are (40,60,70) to (120,160,170) for NPK fertilizer, (140,120,20) to (210,210,100) for Calcium fertilizer and (20,50,0) to (150,180.20) for Potassium fertilizer.
Effects of opening dimension in shear wall on the behavior of high-rise building structure due to earthquake load
Authors: Rohman Fathur , Leman Sunarjo 
Published: December 2020

Abstract
The aim of this study is to analyze the effects of opening dimension in shear wall on the behavior of high-rise building structure due to earthquake load. The 20-story building prototype with shear wall placement as core wall with various sizes of opening are analyzed with the help of software MIDAS GEN, using equivalent lateral force and response spectrum method in X and Y direction. The shape of opening is square with width vary from 0.8 m – 1.3 m and height set at 2.2 m. This analysis will discuss structure’s natural time period, core wall distribution between shear wall and frame, lateral deflection, and story drift. The results show that the greater the opening will increase the natural time period by 1.72% and 1.67%, increase lateral deflection by 21.7932% and 23.5964%, and increase story drift by 24.6910% and 29.077% in each direction.