bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis on Rotational Speed and Material of Twist Drill to Its Worn and Burr Formation in Drilling Ti-6Al-4V
Authors: Aisyah Iis Siti , Rama Randika , Murjito  , Sudarman  , Suprianto Herry 
Published: April 2020

Abstract
Ti-6Al-4V is a material that is mostly used in aerospace. In this industry, especially on stabilizer horizontal structure, minimizing burrs height is important, These structures are assembled and drilled. To be economically viable, it is preferred to minimized or even removed burr during drilling process. Aerospace industry needs to drill component in an operation without reprocessing (disassembled, deburred, and fastened). Burr will lead to distortion of work piece dimension, damage to subsurface, and make difficult to handling and assembling of part. Burr occurs during machining because of inoptimum choice of material, tool, and cutting speed. This research uses experimental method by variating rotational speed and material and type of twist drill to find the optimum choice of the parameter and tool for drilling process of Ti-6Al-4V. The quality of drilling process was measured by the height of burr and wear on the tool. The result shows that the lowest burr is 0,085 mm by using HSS-Co twist drill in 500 rpm of speed. The use of HSS-Ti and HSS-Co in high speed will cause chipping worn. Therefore, it is unsuitable to minimize the burr height.
Light intensity design as a fishing tool on liftnet, with pulse width modulation system based on microcontroller
Authors: Sumardi  , Wisudo Sugeng Hari , Mawardi Wazir , Baskoro Mulyono S 
Published: April 2020

Abstract
Fishing can be done in various ways, including by utilizing lights as fishing tools. The lights used for fishing tools are varied, ranging from torch lights, pressure paraffin lamp, fluorescent lamps (TL, PL, SL, CFL), mercury, and various types of led. However, light transition between one colors to another often scares the fish, driving them out of catchable area shocked by the color change. One solution to address this problem is by smoothly switching the color of the lamp using Pulse Width Modulation (PWM) system on the microcontroller. The color used are the lamp with basic colors of red, green and blue. With power capacity of 50Watt/12Volt, this lamp is classified as High Power Led (HPL) lamp. The light can be free- adjusted, where each lamp can be turned on by its own light or can also be turned on in combination. It can slowly be switch on from an off position to maximum and also can be dimmed from maximum to off. Thus the intensity of the light can be controlled. The HPL and control sections were created separately. Tools and materials used are consist of push-button, microcontroller, optocoupler, mosfet and Red, Green and Blue HPL, Radio-meter (ILT5000 Research Radiometer), Voltmeter, and Amperemeter. The method used was experimental in both laboratory and field. The result of research is in the form of RGB HPL lamp which can be adjusted through control system, such as adjusment for each lamp, or light combination with smooth color transition. Thus, when this technology is applied as fishing tool in liftnet fishing, the targeted fish would still remain on catchable area.
Size effect on shear stress of concrete beam without coarse aggregate
Authors: Christianto Daniel , Makarim Chaidir Anwar , Tavio  , Liucius Yenny U. 
Published: April 2020

Abstract
In this paper, an experimental of size effect on shear stress of concrete beam without coarse aggregate is described, where concrete beams without using transverse reinforcement and using longitudinal reinforcement with a maximum ratio. The study explains the size effect of shear stress that can be bears by concrete beams with shear arm ratio a/d 2.744. The test object in this research is cylinder with diameter 100 mm and height 200 mm and beam with variations of height 60 mm, 90 mm, 120 mm, 150 mm, and 180 mm with width 60 mm and length 1100 mm. From the test results of the compressive strength test, compressive strength of concrete between 58.51 MPa to 99.8 MPa. Based on shear strength test, diagonal tension failure and shear tension failure occurred on the beam. The test results show that the shear stress is size dependent. The shear stress will decrease with rising height of the beam. The pattern of changes in shear stress value due to changes in beam height resembles the results of previous studies by Kani (1967).
Product Quality Control with Six Sigma and Preventive Maintenance
Authors: Pardiyono Ragil , Indrayani Rina 
Published: April 2020

Abstract
PT. X is a garment company in Cimahi, West Java which consists of four departments, namely texturizing, twisting, weaving and dyeing printing. Research focused weaving department with identifying the cause of the defect with six sigma method Define, Measure, Analyze, and Improve. Based on the identification issue using the steps define, measure and analyze known that the causes of defective products is declining performance nozzle and pump components resulting in less water pressure or excess. In addition, not component replacement for a worn shedding motion so that a malfunction of kamran. Therefore, the purpose of this study was to schedule preventive maintenance on spare nozzle, pump and kamran. Improve these problems by creating a preventive maintenance schedule by age replacement method. Based on the results obtained scheduling data processing component replacement on the machine water jet loom is; (1) The components of the pump will be replaced every 150 days, (2) Components kamran 71 days and (3) Components nozzle 82 days.
Water level measurements at the cikupa pandeglang bantendam using fuzzy sugenowith microcontroler-based ultrasonik sensor
Authors: Yunita Ayu Mira , Wardah Neli Nailul , Sugiarto Agung , Susanti ErviNurafliyan , Sujai Lili , Rizky Robby 
Published: April 2020

Abstract
This cikupa dam is very useful so that irrigation in the fields is not too much, one of the officers’ negligence in the rainy season was forgetting to close the door of the dam which resulted in flooding in the area of rice fields. If a large flood occurs, this will result in the possibility of crop failure. Therefore, a tool was made in the form of a water level measurement tool using an ultrasonic sensor with Fuzzy Sugeno method.The existence of this logic is expected to increase the accuracy of water level measurements as the scope of research writing. The results obtained in this study are accurate water level measurement models. By the research of ultrasonic sensors using the Fuzzy Sugeno method, it is expected that the dam guard will get a warning sound to close the door of the dam. The conclusion obtained is that by using the Fuzzy Sugeno method the calculation of accuracy can be more maximal.
Flexural Capacity Predictions and Comparisons of GFRP Reinforced Beams
Authors: Tavio  , Rafani Muhammad , Putu Raka I Gusti , Ratnasari Vita 
Published: April 2020

Abstract
The use of concrete material in construction always requires steel bars as reinforcement, particularly to resist the tensile stresses occurred in concrete. This is because concrete has very low tensile strength. However, the use of reinforcing steel creates another issue, namely its durability against corrosion. This paper discusses the use of GRP reinforcement as a replacement to steel reinforcement particularly when it is used in the aggressive environmental zones. GFRP has the advantage of being a corrosion resistance, it is not like the steel. Different failure mechanisms are also found between steel and GFRP. The steel yields first prior to failure, but not with the GFRP since they remains almost elastic until failure. This is due to the difference between the properties of the steel and GFRP materials, thus this issue leads to the difference in both flexural design procedures. This paper studies the comparison of the theoretical flexural strength design of various codes worldwide as well as several methods for predicting the flexural capacity of beams proposed by various researchers. Various percentages of flexural reinforcement possibly used in beams are discussed and compared. Some of the codes used for comparisons include the FIB Bulletin 40, ECP 208-2005, ACI 440.1R-15, and CSA 806-12.

A post-publication change was made to this article on 20 Apr 2020 to correct the author names.
Comparison of airfoil performance for 120 cm diameter of LLBC-Based Low Speed Wind Turbine
Authors: Setiawan Agus , Al Gifari Muhammad Maris , Hamidah Ida 
Published: April 2020

Abstract
The development of wind turbine attracts more attention as a renewable energy. Layer Laminated Bamboo Composite (LLBC) is a prospective material for rotor blades of low speed wind turbine. Airfoil S834 is commonly used for blade of low speed wind turbine. But there are other airfoils that can be considered, namely S835, S809 and NACA 0012. This research addresses which airfoil shows the best performance for low speed wind turbine. The blade material for wind turbine is LLBC (Laminated Layer Bamboo Composite) which is combination of Gombong Bamboo and Standard Resin. The blade has incidence angle 16° and twist angle 16°, respectively. The four blade configurations were compared with the standard blade using ANSYS CFX simulation. The simulation was carried out with 7,9 million elements, frozen rotor as model for interface between static mesh and rotated mesh. The simulations resulted that S834 airfoil showed the best performance as indicated by the highest power generated.
Coffee Peeling Machine Design
Authors: Indrayani Rina , Sumarta Dewi Mulyasari , Hermawanto Agus Rahmat 
Published: April 2020

Abstract
Coffee is a commodity crop that has an important role in economic activities in Indonesia. Coffee is also one of Indonesia’s export commodities are quite important as a producer of foreign exchange in addition to oil and gas. In addition to the export opportunities increasingly open, the coffee market in the country is still enough of a major of this research is to produce a coffee peeling machine design and to know how to work the coffee peeling machine. Coffee peeling machines is expected to help farmers in the harvest with a maximum peeling and effective in use. With the existence of this machine can work in accordance hopes accordance with the wishes of farmers, as well as to increase the selling price is higher. In this study are analysing the problem, conceptualizing the design, manufacture schematic function block diagram, load calculation, material selection, until finally get a working drawing. The design method described with the design method used in the coffee peeling machines or machine depulper and the method is called the method of French design. Skin peeler machine coffee made with a capacity of 370 kg / h, using the prime mover’s gasoline engine with a power of 5.5 Hp and rotation can be changed as desired change from 1400 up to 4500 rpm. Round to be changed by prime movers’ belt - puly with a ratio of 1: 5. While the engine has the dimensions of length, width and Height of each is 727 x 457 x 1110 mm with a weight of 103 kg.
Decision Support System for Determining the Quality of Salt in Sumenep Madura-Indonesia
Authors: Khozaimi Ach. , Pramudita Yoga Dwitya , Rochman Eka Mala Sari , Rachmad Aeri 
Published: April 2020

Abstract
Salt is one of Indonesia’s major commodities. However, the quality of industrial salt in Indonesia is still an obstacle, so the need for industrial salt still relies on imported salt, especially from Australia. Quality improvement is done through purification using the recrystallization method. The use of a method that is still simple results in the salt being produced still has an as-is quality. Quality is shown from the appearance of salt physically and chemically. Good salt is shown by the crystal form which is smooth and has clear white color. Therefore, good knowledge of salt quality must be known early, in addition to being able to meet the Indonesian National Standard (SNI),in this way salt farmers will more easily improve the quality of salt produced and can differentiate salt designation based on its quality category. This study takes the theme of how to make decisions to determine the quality of salt, so that a decision support system will be built to assist in determining good salt quality by using the Simple Additive Weighting (SAW) method. This method can support the decision making of salt quality determination based on the weight of each attribute. Morever, the total score of the end result can produce a good alternative decision in accordance with specified criteria, so that it will produce salt quality.
The communal salt farmer ventures grouping strategy in Sumenep District using the P-Median method to minimize transport distance in food supply chain network.
Authors: Akhmad Sabarudin , Arendra Anis , Mu’alim  , Hidayat Rachmad 
Published: April 2020

Abstract
Advance research has successfully shown that the farmers grouping in the supply chain network can reduce the total distance of commodity transport. The purpose of this study is to group the communal salt farmer ventures (KUGAR) in Sumenep District to minimize the total transport distance of salt commodities in the food supply chain network. Location coordinates and salt production capacity of each communal salt ventures are required to be able to calculate the total transport distance. Site survey was conducted for each communal salt ventures to mark locations on the Google map and record production capacity. Using the Google map API the distance data between communal salt ventures is collected and built distance matrix from one origin venture to another destination venture. The communal salt ventures grouping is done by the P-Median method. The experiment was conducted with an alternative of 2 groups, 3 groups, 4 groups. Total minimum transport distances as low as 127.82 km are achieved with 4 groupings. The first group was centered at Asapok Angin venture in the village of Pragaan Laok, the sub-district of Pragaan with 13 ventures member. The second group was centered at Mekar Jaya venture in Karanganyar village, Kalianget sub-district with 41 ventures member. The third group was centered at Usaha Bersama VII venture in the village of Gersik Putih, Gapura sub-district with 16 ventures member. The fourth group was centered at Persada Indah VII venture in the village of Kertasada, the Kalianget sub-district with 20 ventures member.
Effect of Supportive-Educative System of Activity Daily Living (ADL) In Heart Failure Patients
Authors: Purnamawati DA , Arofiati F , Relawati A 
Published: April 2020

Abstract
Background: Heart failure is a chronic phase that causes functional damage to the heart due to the many symptoms that occur. The number of symptoms that occur impacts the difficulty in meeting the needs of daily activities. Heart failure requiring proper containment procedures, an intervention can be given pharmacological and non-pharmacological therapy, which one of them supportive-educative system. This system helps patients get health information, and helps in decision making. Objective: To identify the influence of supportive-educative systems on the Daily Living Activity of Heart Failure Patients. Methods: This study used a quasi-experimental method with pre-test and post-test with a control group, a total of 34 patients who had been diagnosed with heart failure using the technique of non-probability, kind consecutive sampling. Overall respondents were divided into two groups chosen by simple random sampling. The intervention group was given treatment supportive - an educative system, while the control group was given basic intervention according to hospital discharge planning for 4 weeks, the first week of intervention (pre-test), the second and third week of observation, the last week of evaluation (post-test). The process that has been done is then tested using Wilcoxon and Paired Samples Test. Results: This study showed there was an increase in Activity Daily Living in the intervention group from the control group, and the results of different tests showed the intervention group was more influential compared to the control group with a τ-value of 0.00. Conclusion: There is no effect of providing a supportive-educative system on Activity Daily Living of heart failure patients.
Comparative Pharmacoeconomy and Effectiveness of Combination Antiplatelet Cost in Patient Ishemic Stroke
Authors: Indriastuti M , Harun N 
Published: April 2020

Abstract
Stroke is one of the number 3 causes of death in Indonesia which is a cerebrovascular disease and is characterized by brain tissue death that occurs due to reduced blood flow and oxygen to the brain. The effect of ischemia is quite rapid because the brain lacks a supply of glucose and has the ability to anaerobic metabolism. The purpose of this study was to obtain a comparative picture of the cost effectiveness of ischemic stroke therapy with three combination therapy groups. This research is a type of descriptive research with retrospective data collection methods from tracking patient medical records and patient drug costs. The research subjects were 126 patients with a diagnosis of ischemic stroke who were hospitalized during January 2018 to June 2019 who met the inclusion criteria and were divided into three groups where the first group (K1) was a group of patients who received a combination of clopidogrel-aspirin antiplatelet, the second group (K2) is a group of patients who receive a combination of DA-clopidogrel-defibrogenating agent and third group (K3) who receive three types of drugs namely, clopidogrel, aspirin and Defibrogenating Agent (D®). Analysis of the effectiveness data in this study was based on the percentage of research subjects who had experienced a decrease in blood pressure during hospitalization. K1 combination therapy reached 67.62% with an average duration of hospitalization of 5.2 days and an average drug cost of Rp 14,063.31. K2 reached 83.33% with an average duration of hospitalization of 4 days and an average drug cost of Rp 117,521. K3 reaches 100% with an average duration of hospitalization of 5.7 days and an average cost of medication Rp 159,048. Second group antiplatelet combination therapy is more cost effective, because the duration of hospitalization is shorter and the target of reducing blood pressure achieved is more optimal.
Rosella (Hibiscuss sabdariffa L) Extract Quality Test for Phase-1 Clinical Trials
Authors: Harun N , Muhtadi  , Nurmalasari A , Haryoto  
Published: April 2020

Abstract
The use of rosella extract administered to humans must pass the quality process test. This study is intended to prepare high quality rosella extract preparations based on Good Manufacturing Practice (GMP) which will be used in phase 1 clinical trials, including the standardization of the extract qualitatively, description of the sensory evaluation test, physicochemical, microbiological. The method used in the extraction process performed by solvent extraction method by maceration using ethanol in acidic conditions with a ratio of 4: 1. Determination of anthocyanin levels using the method of determining pH differentiation, to determine levels of flavonoids by using the aluminum chloride method, visual description sensory evaluation, and physicochemical. Then the microbiological test was conducted using the Total Plate Number (ALT) method. Screening shows rosella extract contains flavonoids and anthocyanins. Roselle extract contains anthocyanin at 10,6 mg/L and total flavonoids equivalent to quercetin 1,3 % w/w. The description sensory evaluation tests have a dark red, homogeneous appearance, smell and taste character like rosella. Physicochemical test results showed particle size 0,82 mm, water solubility 14,2%, alcohol solubility 5,6 %, loss on drying at a temperature of 70 °C at 9,8 %, density 0.72 g / ml, pH at 25 °C was 2.62. Rosella Extract free from aflatoxin and metal. The result test of microbiological aerobic plate count is <1,1E+3 cfu/g, Yeast and Mold <1,1E+3 cfu / g, Coliform APM negative, Salmonella sp negative, Shigella negative, Escherichia coli negative, Staphylococcus aureus negative, Pseudomonas aeruginosa negative. Conclusion, the qualitative test results of ethanol extract can be administered as ready-to-use products in phase 1 clinical trials.
Relationship between Bacteriological Quality of Drilled Well Water and the Incidence of Diarrhea among Families
Authors: Banowati Lilis , Aeni Heni Fa’riatul , Herawati Cucu , Ani  
Published: April 2020

Abstract
The morbidity and mortality rates in Indonesia due to diarrhea are still high. Diarrhea can be transmitted through water which is the main media in the transmission of diarrhea. In addition to food and disease vectors, diarrhea can occur if someone consumes drinking water that has been contaminated from its source or polluted during the distribution process to the house. This study aims to determine the relationship between bacteriological quality of drilled well water and the incidence of diarrhea in families. This was an analytic survey study, with cross sectional approach. The populations were the heads of the families who had a drilled well in the family at Wotgali Village as many as 25 people. The sampling technique used total sample method. Data were obtained directly by observation and interview. Secondary data were obtained from Plered Community Health Center in Plered Subdistrict regarding the occurrence of diarrhea, data from the PSDAP Office on the bacteriological quality of drilled well water and population data were obtained from the Wotgali Village office. Analysis of study data included the bacteriological quality of drilled well water that had been examined in the laboratory and compared with the Regulation of Health Minister No.416 Year 1990, and the incidence of diarrhea. Bacteriological quality of drilled well water variable and the incidence of diarrhea variable were analysed using the exact fisher test with a 95% confidence level. The results showed that 17 (85.0%) drilled well did not meet the requirements in the Regulation of Health Minister no.416 Year 1990 regarding bacteriological quality of wellbore water, namely the existence of Escherichia coli. 17 families (68.0%) families had diarrhea in the last 3 months. Fisher exact test result obtained a p-value of 0.001 (0.001 <0.05) so that there was a relationship between the bacteriological qulity of drilled well water and the incidence of diarrhea in families at Wotgali Village, Plered Subdistrict, Cirebon District in 2016.
Identification of development of feasibility assessment for community based water power plant
Authors: Suryadimal  , Ganefri  , Ambiyar  , Jalinus Nizwardi , Rizal Fahmi , Darmayanti Yeasy 
Published: April 2020

Abstract
This study aims to identify technical and non-technical aspects in developing the feasibility assessment of community-based hydropower.The technical aspects consist of the aspects of Hydrology, Civil and Mechanical Electrical and non-technical aspects influenced by economic, socio-cultural and environmental aspects. In identifying the two aspects above exploration of Borg and Gall theory, and related studies in the feasibility assessment commonly used by a team of experts and technical consultants and government standards.The feasibility assessment is strongly influenced by 43.24% of technical and non-technical aspects, the relationship between hydraulics and economic aspects ranges 32.43%, and the influence of social and environmental aspects by 24.32%