bluuebunny/crossref_metadata_2025_split huggingface dataset:
Review and experimental study on performance improvement of split air conditioner by reducing inlet air temperature to the ODU
Authors: Dwivedi S , Shah B A 
Published: December 2020

AbstractSplit Air Conditioners (ACs) are more commonly use now a days in residential and commercial buildings for achieving thermal comfort in all seasons. Split ACs works on well-known VCR (Vapour Compression Refrigeration) cycle. Split ACs used more in summer season and due to high outside temperature condenser pressure in a VCR cycle and ultimately result in to high electricity consumption. One of the way to reduce energy consumption of Split ACs and increase cooling capacity is reduce air temperature entering to the condenser in ODU using evaporative cooling principle. In this paper detailed review have been carried out for the improvement of split air conditioner performance and experimental study conducted on Split AC (0.8 TR cooling capacity) with and without evaporative cooling pad at ODU. Evaporative cooling pad material and thickness have been varied to analyse their effects on cooling capacity and coefficient of performance (COP) of Split AC. Out of the PVC, Grass and Cellulose cooling pad of same thickness 150 mm, cellulose cooling pad at ODU of Split AC results about 2 bar reduction in condenser pressure and 1.5 KWH energy saving for 10 hours of operation in a day. Split AC with 100 mm thick cooling pad of cellulose material at ODU results in to approximately 16% increase in overall COP, 10.8 % increase in cooling capacity and 4.6 % reduction in power consumption and at 32°C DBT and about 35% RH outdoor weather condition.
Design of Antilock Braking System Based on Wheel Slip Estimation
Authors: Dankan Gowda V , Ramesha M , Sridhara S B , Naveena Pai G , Patil Sachin Kumar 
Published: December 2020

Abstract
The goal in this research is to develop a brand new ABS set of rules the use of doubtlessly available statistics approximately wheel forces. A novel ABS set of rules that uses both force and wheel slip measurements for manipulate is designed. In this study, a new integrated Nonlinear tracking Control (NTC) is evolved that includes the dynamic evaluation of hydraulic braking systems. A longitudinal dynamic behaviour of vehicle model under straight manoeuvre is simulated, which includes the angular wheel speed, vehicle velocity, wheel slip variation, brake pressure modulation and stopping distance. Mathematical modelling of Vehicle Braking System has been carried out in simulink, which employs a car pitch optimization using nonlinear control, when vehicle undergoes a surprising acceleration/deceleration and for the duration of panic braking scenario.
Spray dried nano oxide ceramics for free flowing plasma spray coating powders and battery material processing
Authors: Bhattacharjee Sushmit , Srivastava Yashdeep , Reghu VR , Ramaswamy Parvati 
Published: December 2020

Abstract
Advanced materials are widely used in electronics, aerospace and automobile industry devices and also in substances synthesized for food, medical and pharmaceutical industries. The quality of the base material powder has high influence on the resulting material body (the product) which goes into the manufacture of the device. To name a few (a) flowable ceramic powders from agglomerated nano ceramic powders for plasma spray coatings with the right sprayable powder characteristics (b) advanced graphene encapsulated nano ceramic oxide powders with uniform conductive coating layers as promising electrodes in Li-Ion batteries, (c) advanced bio-ceramic oxides such as hydroxy-apatite ceramic materials with right amounts of moisture, density and composition consistency as bone and dental implants in bio-ceramics research are examples. Among the many processing methods to achieve the base powders from nano ceramic raw materials the most capable and efficient is ‘Spray Drying’ which results in powders with high purity with well-defined properties. Complex composite by spray drying is achieved where the ‘matrix host’ material is encapsulated by the ‘guest layer’ with special properties. This paper illustrates results pertaining to experimentation via spray drying and microscopic investigation by using SEM associated with EDS on (a) Yttria stabilized zirconia plasma sprayable powders for Thermal Barrier Coatings application and (b) nano yttria stabilized zirconia incorporated into microns sized alumina powders for enhanced densification, to understand the significant role of process parameters on uniformity and consistency of the spray dried products. Information based on review on spray dried Li-ion battery materials is also included.
Esterification glycerol (by product in biodiesel production) with oleic acid using mordenite natural zeolite as catalyst: study of reaction temperature and catalyst loading effect
Authors: Nindya C C S , Anggara D R , Nuryoto  , Teguh K 
Published: December 2020

Abstract
In the heterogeneous system, reaction temperature and catalyst loading are very affected to the fluid diffusivities and molecular interaction in the active sites of catalyst. Theoritically, increasing both of them ensued to increases the chemical reaction rate. The aim of this research was to know how the effect of reaction temperature and catalyst loading to reaction rate in esterification of oleic acid with glycerol, based on oleic acid conversion result. The experiments were Carried out in a batch reactor by the reaction temperature from 160 to 200°C, catalyst loading of 0.5 to 2 wt% of solution, the reactants glycerol ratio of 3 mole / mole of oleic acid, reaction time of 80 minutes, agitation speed of 600 rpm, and mordernite natural zeolite as a catalyst. Observation result Showed that increasing the reaction temperature and catalyst loading were Accompanying by increases of oleic acid conversion. The highest conversion to reach at reaction temperature of 200°C and a catalyst loading of 2 wt% that was 75.09%.
Metallurgical performance of column and mechanical flotation as a rougher circuit in sphalerite ore flotation with %solid and frother dose variation
Authors: Oediyani S , Muttaqin A , Haryono D , Suwandana R F 
Published: December 2020

Abstract
Column flotation is commonly used in cleaner circuits at the ore beneficiacy industry. However, this research wants to apply the column to the rougher circuit as an alternative to the mechanical flotation due to its energy efficiency which is 80% more efficient. This research was conducted using column and mechanical flotation cells to observe their metallurgical performance as a rougher circuit. The feed is sphalerite ore at size -140+230# with variables of % solid 7.5;10; 12.5; 15 and doses of frother 20;30;40; and 50ppm. Reagents used include OrePrep, Potassium Amyl Xanthate 500g/ton, copper sulfate 500g/ton, and soda ash 500g/ton. Flotation process is carried out 5 minutes for conditioning and 10 minutes for aeration. The results obtained the recovery value and grade. The results from the experiment, it can be concluded that the recovery obtained by mechanical is superior, and for column flotation grade is superior. In the variation of solid percent and frother dose, recovery increases to the maximum point and then decreases because no signifant effect after maximum point. The recommended variables for mechanical flotation are 12.5 solid% and 50ppm frother dose, because the recovery worth 75.462%. For column flotation, 15% and 40ppm, obtain the highest recovery 53.439%.
Monitoring and controlling electricity consumption using Wemos D1 Mini and smartphone
Authors: Suryono Wiwid , Setiyo Prabowo Achmad , Suhanto  , Mu’ti Sazali Abdul 
Published: December 2020

Abstract
The purpose of this study is utilizing the system that can monitor and control electricity consumption using a smartphone remotely. Finding in this study related monitoring and controlling electricity consumption using wemos D1 Mini and blynk app on a smartphone is quite effective. The electricity consumption information is displayed on LCD of wemos D1 mini and blynk app on a smartphone in the form of voltage, ampere, watt, and frequency. This device has two control function namely local mode and remote mode. Using local mode will generate output load turned on by switch and using remote mode will generate output load activated via blynk app on a smartphone.
Development of leaf spring design in large vehicles made from material type 65 si7 using static analysis with reverse engineering
Authors: Nazaruddin N , Zainuri F , Prasetya S , Siregar R , Heryana G , Adhitya M , Sumarsono DA 
Published: December 2020

Abstract
University of Indonesia Electric Bus was first developed using Hino R260 chassis. For further development, especially to fill out local content, it must be carried out engineering of its components. One of which will be discussed in this paper is the spring component. Reverse Engineering method is used to redesign in such a way. Measurement of the existing leaf springs in the chassis is done. The dimensions and number of leaf springs for the front and rear wheels of the chassis are produced. With CAD software and finite element analysis, a static analysis is performed on each of these springs. Front axle leaf spring arrangement consists of 8 spring sheets with dimensions of width 80 mm and thickness of 10 mm with stratified length. Rear axle leaf spring arrangement consists of 5 spring springs with dimensions of 90 mm width and 12 mm thickness with evenly distributed length. The theoretical stress on the front leaf springs is 512.74 MPa and finite element analysis is 531.5 MPa. The theoretical stress behind the leaf spring which occurs is 721.67 MPa and elemental analysis up to 728.4 MPa. The material for both of these springs is chosen is 65 si7 or SUP9.
Camshaft modification on gasoline single cylinder engine to increase engine performance
Authors: Sudrajad Agung , Yusuf Yusvardi , Prasetyo Irwan 
Published: December 2020

Abstract
Motorcycle is the main transportation in urban and rural areas nowadays. Many users have not satisfied with performance of standard manufactured. The objective of this research is to improve motorcycle performance by modifying the camshaft duration. The research was conducted at Combustion Laboratory of Department of Mechanical Engineering Faculty of Engineering. The standard of camshaft duration is intake valve 221° LSA, 96.75° and exhaust valve 202° LSA 84°. The first modification camshaft is intake valve 235° LSA 100.5° and exhaust valve 235° LSA 102.5°. Second modification camshaft is intake valve 260° LSA 104° and exhaust valve 260° LSA 107°. The results of experiment show the good engine performance was in the second modification. Increased of torque are 19.182% and 22.902% for the first and second modification respectively. Moreover, increased of power are 7.378% and 13.45% for the first and second modification respectively.
Characteristics of aluminium AC4B reinforced with nano -SiC composites through stir casting methods
Authors: Fitri T N , Narottama W , Zulfia A 
Published: December 2020

Abstract
Aluminium with a composition of 7-10% Silicon (Si), 2-4% Copper (Cu) is a matrix used by adding Nano SiC reinforcement particles with variations of 0.25; 0.3; 0.4%Vf with the purpose of making bullet-proof materials that have high toughness, impact resistance, and good strength. In this study, fabricated composites used a stir casting process to produce superior mechanical properties which was caused by the bond between an effective matrix and reinforcement particles. Besides, the addition of Nano SiC reinforcement particles, it was also followed by adding 5%wt Magnesium (Mg) as a wetting agent, 0.04%wt Strontium (Sr) as modifier agent, and 0.15%wt Al-5Ti-1B as a grain refining agent. Fabricated composite specimens will be carried out several tests to determine mechanical properties such as density, porosity, hardness, tensile strength, impact resistance, and ballistic test. The result of the test will be compared to the results of that without the addition of reinforcement particles. Then, using the Optical Microscope (OM), Scanning Electron Microscope (SEM), Dispersive X-Ray Spectroscopy (EDX), and X-Ray Diffraction (XRD) to analyse the dispersion of reinforcement particles in the selected alloy matrix.
Selection of supplier for the evaluation of procurement of special chemical using entropy method and topsis in xyz company
Authors: Wijaya E R , Rudianto  
Published: December 2020

Abstract
In the process of procuring special materials, the company has more than one supplier for each item of goods, at XYZ companies selecting suppliers through process evaluation. In the evaluation process the supplier is chosen only based on the lowest price offered by the supplier, these criteria have not been able to ensure the selected supplier can meet other criteria such as quality, transportation system and so on. This study aims to determine whether the criteria that have the highest weight value in the selection of suppliers and to find out the best supplier in the purchase of special materials XYZ companies. In this study, the Entropy and TOPSIS methods are used to analyse the data.. Entropy method is used to calculate the weight of each criterion and alternatives, while the TOPSIS method is used to rank suppliers. The results showed that the criterion that had the highest weighting value in the selection of special material suppliers in the special material purchasing section of XYZ company was the criterion C3 and C12 with positive ideal solution value 0,0380 and 0,0389. Whereas the best supplier for PT XYZ’s special material purchasing department is supplier E with a preference value of 0.5517.
The manufacturing technology optimisation model: the crucial contribution of industrial mass-training in improving company performance
Authors: Sukarma L. , Hendra Franka , Effendi Riki , Mohamad E. 
Published: December 2020

Abstract
Fierce global competition, volatile changing market and the spread of advanced manufacturing technology have forced significant changes in the competitive arena of manufacturing industries. This manuscript presents the Manufacturing Technology Optimisation Model, which discusses the crucial role of industrial mass training in improving manufacturing company performance. This model provides insights toward the proper allocation of resources which will bring about optimum condition of improved company performance. Four lessons can be learnt from the model: (a) companies should focus first on improving their capability in effectiveness - doing the right things - before pursuing efficiency and adaptability; (b) the attainment of effectiveness can be accelerated by providing employees with on-the-job mass training on certain practices; (c) companies can continue to pursue the efficiency after they have excellent capability in effectiveness; (d) the pursuit of adaptability may simultaneously advance with that of efficiency, aimed at more responsive to customer requirements. A subsequent paper will demonstrate that selection of appropriate ‘people-based’ practices may accelerate improved company performance.
Fiscal incentive policy for coal downstreaming in Indonesia
Authors: Ragimun  , Rosjadi Imran 
Published: December 2020

Abstract
This study aims to describe the coal downstreaming program which is expected to increase the added value of coal in Indonesia. Increasing the added value of coal such as the gasification project has a strategic role to increase state revenues and foreign exchange and is expected to have implications for increasing development in the region and nationally. The research method used is a quantitative and qualitative approach. The quantitative approach is used the accounting approach and benefit cost analysis (BCA), while the qualitative approach is used in the study of literature and focus group discussions. From the results of the discussions, the Government can provide coal gasification fiscal incentives to pioneering companies with the consideration that this downstreaming program will be able to spur state revenue as well as regional and national economic growth. Besides this downstreaming activities will be able to increase similar activities in Indonesia.
Identify product families using cluster analysis: case study in Passenger Car Radial (PCR) tire product
Authors: Nugrahita Rere , Surjandari Isti 
Published: December 2020

Abstract
Manufacturing companies, such as tire manufactures are facing great challenges to cope with increased product variety which induced by customer demand. This variety lead to higher internal complexity in term of design and production. Thus, variety has to be well-managed in order to guarantee the positive outcome for company. One of the solution is to have a well-structured product family. In this research, products data are partitioned into clusters by applying cluster analysis for mixed-type data based on their general characteristic and component specification. Variants within cluster have similarities in term of characteristics and main product component used in production. By applying k-prototypes algorithm to handle these mixed type data, the data set is clustered and interpreted into eight different clusters using selected variables.
Product recommender system using neural collaborative filtering for marketplace in indonesia
Authors: Faizin Arief , Surjandari Isti 
Published: December 2020

Abstract
Marketplace has the potential growth in Indonesia indicated by the continued increase in the number of customers. However, the marketplace has some limitations to deliver personalized purchasing experience. Recommender system can support marketplace to overcome that limitations so that customer can find items or services based on their preferences. This study propose to develop product recommender system based on Neural Collaborative Filtering (NCF) algorithm. The product recommender system to be built is using implicit feedback data in the form of customer purchase data. Implicit feedback is reliable data for building recommendation system. The results have shown that NCF achieve the best performance and outperforms over the other collaborative filtering methods.
Website library information system design using fast method
Authors: Gunawan A , Wahyuni N , Setiawan H , Katili PB , Azla R 
Published: December 2020

Abstract
This research was conducted at the Department of Industrial Engineering as part of the department at Sultan Ageng Tirtayasa University which has applied information technology to support every academic activity, information media, and services. Likewise the library which is part of the academic facilities in industrial engineering matters. However, in the current condition the library does not have an information system as a form of service improvement and information technology utilization. In service activities and the availability of information in the library it was found that industrial engineering students have not provided information system support, specifically regarding search reference books, and research. A general search for references for this book is handled by the industrial engineering library. Based on this problem, therefore an information system based website will be designed using a CMS (Content Management System) because it can meet the management system, management information system, and present information to users. The information system in this study was designed using the FAST (Framework for Application of System Technique) method in which there is an analysis using PIECES (Performance, Information, Economic, Control, Efficiency and Service) therein. This method provides a model for analyzing and defining user needs, choosing solutions and making an organized system for designing information systems.
A simulation study of radiant chilled ceiling with dedicated outdoor air system for office buildings in Thailand
Authors: Aryal Ashmin , Chaiwiwatworakul Pipat , Chirarattananon Surapong 
Published: December 2020

Abstract
Radiant chilled ceiling (RCC) integrated with dedicated outdoor air system (DOAS) has been considered as a system offering building occupants a good thermal comfort with energy efficiency. This paper compares three different configurations of RCC and DOAS system in terms of cooling load, room condition and energy consumption. The results from TRNSYS simulation presented that all the configurations could maintain the indoor condition with the Predictive Mean Vote (PMV) value ±0.5 over the office hours 6:00-18:00. The mean radiant temperature of the room was found below the room air temperature which resulted from the low RCC surface temperature of around 19°C. No condensation occurred on the panel during the system operation. The study showed that the RCC with DOAS comprising of cooling coil (CC), round around coil (RC) and enthalpy wheel (EW) is the most energy saving configuration.
Corrosion resistance study of UNS A96110 aluminum alloy in chloride-sulphate solution
Authors: Loto Roland T. 
Published: December 2020

Abstract
Electrochemical analysis of the corrosion resistance of UNS A96110 aluminum alloy (UN6110) in neutral chloride media at 0.5%, 1%, 1.5%, 2%, 2.5%, 3% and 3.5% NaCl concentration, and 3.5% NaCl/sulphuric acid solution at concentrations of 0.00625 M and 0.1 M by potentiodynamic polarization method. UN6110 exhibited lower corrosion in the acid chloride solution compared to the results obtained from the neutral chloride media. The lowest corrosion rate (0.097 mm/y) was obtained from the neutral chloride solution at 0.5% NaCl corresponding to corrosion current density of 8.78 x 10-6 A/cm2 and polarization resistance of 2927 Ω while the highest value 0.344 mm/y was obtained at 3.5% NaCl concentration. Polarization plot showed significant variation at the anodic portion of the polarization plots with visible potential transients on the passivation portion of the plot. The aluminium alloy exhibited passivation reaction mechanisms due to formation and breakdown of the inert protective oxide. Variation of the cathodic polarization plots shows activation controlled reduction reactions. In sulphate-chloride solution, corrosion rate UN6110 significantly increased to 15.855 mm/y at 0.00625 M and 20.017 mm/y 0.1 M. Optical images obtained from the neutral chloride solution showed the presence of large micro corrosion pits and grooves due to the electrochemical action of chlorides. This differs from the images obtain from the acid chloride solution which showed general surface deterioration couple with well-defined micro and macro corrosion pits.
Fabrication of non-woven hybrid natural fiber/poly(lactic acid) composite via prepreg lamination
Authors: Khieomuang J , Thongpin C 
Published: December 2020

Abstract
Hybrid natural fiber-reinforced polylactic acid (PLA) composites were prepared using a prepreg lamination. Two types of the long continuous natural fibers, i.e. sisal fiber (SF) and pineapple leaf fiber (PALF) were used in this work. The SF and PALF were treated using alkalization (NaOH) and then silane coupling agent (APS) to improve the interfacial bonding between fiber and PLA. After the surface treatment, the chemical group on the surface of SF and PALF were analyzed by Fourier transform infrared (FTIR). The FTIR result confirmed that hemicellulose and lignin were removed and also silane was grafted on the fiber surface. The micrographs by scanning electron microscopy (SEM) of the fibers observed morphological change of the fiber surface. The surface treatment improved the thermal stability of fiber as detected by thermogravimetry analyzer (TGA). The tensile strength of single SF and PALF were increased after surface treatment by alkalization and silane, respectively. Moreover, the tensile strength increases as an increase in the fiber length. Thus, the hybrid natural fiber/PLA composites showed high tensile properties compared with SF/PLA, PALF/PLA composites and pure PLA.