ABSTRACT Rotary friction welding is a type of welding that belongs to the solis state type where welding does not require filling material to perform welding. This study aimed to measure the mechanical power of the rotary friction welding machine drive engine, before welding, during welding, and after welding using a strain gauge sensor attached to the stretch rod, for motor speed measured…
ABSTRAK Ethylene is one of the most important petrochemical substances and it’s uses as raw material for various products. The last products made with ethylene include food packaging, toys, food containers, bottles, pipes, antifreeze, carpets, insulation, household appliances, etc. Chemicals made from ethylene to produce end products such as polyethylene, ethylene dichloride, ethylene ox…
This research is motivated by the importance of learning design and planning. The results of interviews with math teachers at various high schools in Kampar Regency about teaching materials showed that teachers did not develop teaching materials independently due to various factors, including the teacher's habit of using conventional teaching methods. The teacher makes learning resources o…
Abstract. This research aims to produce a prototype of a uniform circular motion learning media based on Arduino Uno microcontroller. The research design uses the Research and Development (R&D) method by using the 4D model which includes: (1) define, (2) design, (3) develop, and (4) disseminate. This research was conducted only at the design stage. The results showed that the accuracy of t…
This research goals to analyze the effect of income levels, financial literacy, and use of social media on teacher consumptive behavior. This type of research is descriptive quantitative research, this research was conducted in Sabak Auh District, Siak Regency. The type of data used is primary data in the form of questionnaires and secondary data, namely civil servant salary amprah and addi…
ABSTRAK Life in the modern era like today is a life that is very dependent on the availability of energy. With the availability of energy, humans can create technology that alleviates human work. Unfortunately human dependence on energy is increasing and if overexplored it will have an impact on the energy crisis. The rise of energy saving campaigns by the government requires all people to…
Ferroelectric is an electronic material especially dielectric, which polarizes spontaneously and has the ability to change the direction of its internal electricity. Applications of ferroelectric films use the dielectric, pyroelectric and electrooptic properties characteristic of ferroelectric materials. Some of the most important electronic applications of ferroelectric film include: non-v…
The koa game is a popular game in Kamang Hilir sub-district, especially in Koto Panjang village. Koa games are a wealth of local culture that should be used in learning about nature and encourage the growth of social interaction in society. This game is usually performed by men.s minang to fill spare time or an event to gather together and sometimes this game is also played when there are tradi…
Rubber fiber concrete is one form of innovation to utilize used tire waste as a supporting material for the concrete mixture because it has a high elasticity value, so it is expected to change the properties of concrete which tend to be stiff. The growth rate continues to increase every year resulting in an increase in the volume of road capacity. Therefore, the government continues to improve …
Exploitation of Child Labor in Indonesia refers more to the situation in the form of a lack of matters relating to the fulfillment of primary needs, such as clothing, food and shelter. This poverty problem affects many things, including unemployment, crime, and no less important poverty has an impact on the deprivation of children's rights. The observed environmental aspects of exploitation are…
The background of this research is the implementation of flood prevention by TAGANA Riau Province. In the process they are not only working alone, but also assisted by several other organizations such as BPBD Riau Province, PMI Riau Province, the Scout Movement and also the community. The research method that I use is qualitative. This is a research procedure to produce descriptive data (words)…
Flood disaster is an event that has an impact on the environment and cannot be predicted when it happens, but if high rainfall usually often results in flooding. As a result of flooding can be seen from various aspects, such as the environmental, social, health to the economic aspects that are very influential for humans in their lives (Kusuma et al, 2010). One example of the flood disaster tha…
ABSTRACT Soft soils have instability problems that cannot be tolerated, so when a construction is to be built, the soft soil has to go through several methods of soil repair. One of them is by giving a load above the ground to increase the pressure of pore water in the soil, so that the water that fills the pore space on the ground out so that it causes the volume of pores in the soil to s…
After going through a long process, in March 2019, Jakarta resident have Mass Rapid Transit (MRT) as a modern mass transportation mode. The presence of the MRT planned since 1986 is expected to be one of the solution to dealing with the heavy traffic in Jakarta that seemed impossible to handle. The problems that followed is MRT passenger behaviour is not prepared with all the regulations that m…
This study aims to describe the effect of resilience and social support on the optimism of the head of PAUD in Tampan District, Pekanbaru City. The background of the problem in this study is that the head of PAUD in Tampan District, Pekanbaru City does not have high or sufficient optimism such as feeling inferior, nervous, lazy, afraid and others which can be an obstacle for the head of PAUD in…
This study aims to determine the effect of the degree of openness of economic , inflation and interest rates on the exchange rate in Indonesia from 2001-2018. This study uses independent variables consisting of the degree of economic openness, inflation, and interest rates with the dependent variable, namely the dollar exchange rate against the rupiah. The data used in this study are annua…
Pulau Sarak Village has a clean water source known as Sikumbang Springs. The Sikumbang Springs is exploited by the community as a source of clean water for the drinking water business to meet the household water needs of the people of Pulau Sarak Village as well as those from areas outside of Pulau Sarak Village such as Air Tiris, Bangkinang and Pekanbaru. In 2019 the number of drinking wa…
Many studies about concrete have been carried out to obtain alternative discoveries, various ways have been done to produce concrete with better quality, one of which is the use of synthesis in concrete with the addition of graphane for all applications with variations in the addition of a few layers of graphane with the high-shear method liquid exfoliation. This study aims to determine the…
Personal branding is a communication process about personality, abilities, values, behavior, achievements, uniqueness that creates a positive impression or perception from society and will always be an identity that others will remember about someone. Personal branding contains messages that will build other people's perceptions of someone. Representation means interpreting something that is de…
Environmental carrying capacity with the other methods has been used by other countries especially developed countries. One of method was based on ecosystem services which developed by MEA in 2005. This approach looked environmental carrying capacity through benefits that people could get on it. In the other hand, environmental carrying capacity based on ecosystem service could integrated …