International research journal of engineering, IT & scientific research
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Concrete characteristics using aggregate from Nanga Jemah Village, Kapuas Hulu District for rabat beton road
Get PDFThe use of concrete for various building constructions has been widely used, both as a building structure and also for transportation purposes, especially for concrete roads. Nanga Jemah Village is one of the villages located in Boyan District, Kapuas Hulu Regency which has potential in the field of building materials. The use of aggregates originating from Nanga Jemah has often been done, but until now no one has investigated this type of aggregate as a concrete-forming material, especially for the manufacture of concrete rebate roads. The aggregates used in this study are aggregates derived from Nanga Jemah, both fine aggregates and coarse aggregates by comparing the use of commonly used materials. The purpose and objective of this research are to develop the potential of the area in the form of materials originating from the village of Nanga Jemah so that they can be used as concrete-forming materials, especially for the construction of the Rabat Beton road. 
Basic understanding of water flooding as a secondary recovery concept: Literature review
Get PDFThe need for energy and mineral resources is needed for the survival of human life. One of the results of minerals contained in the bowels of the earth is crude oil. Natural resources crude oil is still a top priority for natural resource needs in Indonesia. So it is necessary to explore and exploit crude oil resources. Secondary recovery (water flooding) and tertiary recovery methods are carried out on an oil and gas well to assist the process of producing oil to the surface. Water flooding is a method that is widely used because water is easy to obtain, water supply is quite cheap and mobility is low. Water injection is a second stage recovery method by injecting water into the reservoir so that the remaining oil can be pushed to the production well. Water flooding in its application can show a decreasing trend in production if the efficiency of this method in the reservoir has decreased, therefore after the water flooding recovery method has decreased production, the EOR method as a tertiary recovery method can be applied. 
The rice sort machine design to improve rice granules quality
Get PDFTo produce quality rice, improvement in rice production management must begin at the farmer level (on-farm) by using high-quality seeds and good plant maintenance. Good quality rice is rice grains that don't break or crumble. To urge good quality rice, rice producers usually sort it manually. This method leads to long work processes and low productivity. Efforts to beat this problem are by designing a rice sorting machine which will separate whole rice and broken rice so on lighten the workload, improve rice quality, and increase prices. The results of the study obtained that the look specifications of the rice sieving machine were a). The sieving capacity is 10 kg of rice, the most drive is an electrical motor of 0.25 HP, a V-belt transmission, and an angled iron frame. Machine dimensions: length 120 cm, width 70 cm and height 90 cm). Machine testing the standard of rice grains employing a sorting machine can improve the standard of rice grains by reducing the presence of broken rice (size p=0.30 mm and below) a mean of 0.2 kg for 10 kg of sorted rice or increasing the standard by 1.91%. Machine testing from the ergonomic aspect
The effect of drying temperature and time on the chemical and functional characteristics of couple bean surrounding flour (Vigna unguiculata)
Get PDFCowpea has a high protein value but contains anti-nutritional substances so that the germination process is required. Cowpea sprouts can be processed into flour which is then used as raw material for various processed food products such as instant porridge. This study aimed to examine the chemical and physical characteristics of cowpea sprouted flour due to temperature treatment and drying time. This study used a completely randomized design with a factorial pattern with two treatment factors, namely temperature consisting of 3 levels (50oC, 60oC and 70°C) and drying time factor consisting of 12, 14 and 16 hours. The data obtained were analyzed using variance, if it had a significant effect (P<0.05) followed by the Least Significant Difference (LSD) test. The results showed that the temperature treatment of 70oC and drying time of 16 hours was the best treatment which produced cowpea sprouts flour with a water content of 2.51%, ash content of 4.93%, protein content of 24.52%, fat content of 2.34%, content of carbohydrates 65.71%, crude fiber content 9.36%, wettability 178.76 seconds, kamba density 0.43 g/ml, water absorption index 1.73 mlH2O/g, solubility index 40.60% and color (L) 80.47
Study of the under pass structure in Gatot Subroto – Cokroaminoto Intersection-Roads, Denpasar – Bali
Get PDFDenpasar represent town with amount of most resident in Bali and have tendency will increasingly. This of course will be followed by accelerating development various sector. This condition will be create various of urban problems, among the others problem is jam of traffic, that caused of existence of unbalanced between growth of very fast vehicle (14%) compared to with accretion of new streets which only reaching 3,6% a year. To overcome the problem one of the effort able to be conducted is by improving the quality of street service which have there, especially at critical joint streets and intersection streets, like Gatot Subroto - Cokroaminoto intersection-roads. However progressively is fast of accretion amount of vehicle, this methode will not can give optimal service, so that require to another way of problem solving. Other Arrangement Alternative to solve this jam is with intersection street is not at a piece of, such as which have been applied at Simpang Dewa Ruci. In general, the type of construction is fly over and underpass, but pursuant to experience at Simpang Dewa Ruci, from the social and culture aspect happened deduction of fly over type
Development of cooling condensor shell and tube with cooling tower on the distillation equipment for the making of RHUM beverages
Get PDFDistillation is a method of separating chemicals based on differences in the speed or ease of evaporation (volatility) of the material in distillation, the mixture of substances is boiled so that it evaporates, and this vapor is then cooled back into the form of a liquid. The condenser is a heat exchanger that functions as a medium for the condensation process. Cooling towers are able to lower the water temperature more than equipment that only uses air to dissipate heat. This study aims to observe the temperature of the shell and tube condenser with a cooling tower system on the alcohol content produced in the distillation apparatus. Experimental research method is testing the cooling tower cooling system on the shell and tube condenser for the distillation of rum drinks. The results of the development of a condenser cooling system distillation device with a cooling tower have an average temperature of Tu in 81.3°C and Tu out 41.0ºC in the condenser, the average water flow rate is 46 liters per minute. Meanwhile, the cooling water in the cooling tower has an average temperature of Tw in water 46.6°C and Tw out water 47.5°C. 
Design and implementation the stability and direction of hexapod robot motion
Get PDFRobotics technology has developed rapidly and applied to various fields of work that cannot be done by humans. Many forms and types of robots used include the hexapod robot. The purpose of this research is to regulate the direction of the hexapod robot’s motion and be able to avoid obstacles to maintain the stability of its motion using a PID control system. In establishing a good control system, various types of sensors are used, those are ultrasonic and inertial measurement unit sensors. The shape of the hexapod robot is made to be integrated with the robot's legs. Each leg of the robot consists of 3 joints, joined by a servo motor. There are 18 servo motors. Eight ultrasonic sensors are used to detect surrounding objects, run well, and ability to avoid obstacles. The main orientation of the hexapod robot motion is to move forward, but if there are obstacles, it will find a solution to turn using ultrasonic sensors. An inertial measurement unit sensor is used to maintain the robot’s body’s stability
Evaluation of mechanical risks in the labor activities of washing and lubricating vehicles
Get PDFThis research is based on occupational risk factors to Those to which workers are exposed in vehicle washers and lubricators, risk components that correspond to a current problem where working conditions and various risk factors related to work in this type of activity are identified. The same that can generate accidents or occupational diseases. Likewise, the need to take actions aimed at the prevention of this type of risk was seen, whose main objective was to identify, evaluate and propose a prevention plan, research that was carried out on two jobs, using the methodology of: Willian T Fine. Where we proceeded with the direct observation of the jobs, taking photographs and filming, which allowed the application of the method. The results showed high levels of risk in both activities, both washing and lubricating vehicles. This research instructs how primary actions can be carried out aimed at the prevention of occupational risks
Digital transformation in higher education in Vietnam
Get PDFThis paper, which aims to explore (i) what digital transformation means in the higher education context, (ii) what knowledge should faculty members equip themselves with in response to the forthcoming digitalization in their institutions, and (iii) what HEIs should bear in mind in designing professional development programs to support their faculty’s preparation. Based on an exhaustive review of literature, the paper has significant implications for HEIs in getting ready for their imminent digitalization
Eco enzyme production from fruit peel waste and its application as an anti-bacterial and TSS reducing agent
Get PDFThe increasing volume of organic waste in garbage dump facilities will emit methane gas, which is one of the greenhouse gases that cause global warming. By producing eco enzymes from fruit peel and vegetable waste, we can minimize organic waste while also creating beneficial products. In this research, eco-enzyme was produced from papaya, dragon fruit, and orange peel waste mixed with water and molasses. The weight ratio between water, organic compounds, and molasses was 10:3:1. The mixture was fermented for 3 months. The DNS method was used to test enzyme activity; the ASTM 2315:2008 method was used to measure bacteria killing power; and the SNI 06-6989-3-2004 method was used to measure TSS levels in liquid waste.The Eco enzyme product generated from this research has an amylase enzyme activity of 2.15 and a cellulase activity of 1.69. Eco enzyme effectiveness in killing E. coli bacteria reaches 99.95% and P. aeruginosa bacteria at 99.90% with only 20% of eco enzyme concentration within 15 seconds of contact time. The results of liquid waste processing using this eco enzyme show that TSS reduction rate is 65-88% on an initial TSS concentration of 345 ppm