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A series of binary mixtures of adipic acid (AA) and erythritol (Ery) were prepared and the thermal properties were investigated in this study. The results showed that a eutectic mixture was formed when the mass ratio of adipic acid and erythritol reached 1:7. The eutectic mixture displayed a melting...

The purpose of this study is to increase the coefficient of performance (COP) of the split air conditioner (SAC) by reducing the compressor work and increasing cooling capacity which can be achieved with a two phase ejector as an expansion device with novel design dual evaporator temperature. Numerical...

-This study aims to develop a higher order thinking skills (HOTS) assessment instrument for learning text review in students class XI of state senior high school 5 Binjai. This type of research is research and development that refers to the development model of Borg And Gall. The development model of...

This study presents the design and construction of a portable cooler box prototype based on green technology, utilizing Bio-PCM from Virgin Coconut Oil (VCO) as a thermal energy storage system. A thermoelectric cooling system is used to achieve high energy efficiency without conventional refrigerants...

The sustainability development is a development that relevant to the present time, with a plan in accordance to national mid-term development plan which are MDGs and SDGs. It is a development by approaching the improvement of the quality of life and prosperity. The aim of this research is to observe...

The aim of this research is to explore the perspectives and contributions of SME owners towards sustainable practices and reducing environmental impacts towards the goal of net zero carbon emissions. This research uses a mirroring approach with 30 semi-structured interviews with culinary SME owners in...

In Bali, there is an alcoholic drink that is traditionally distilled by Balinese villagers. The drink is well known as Arrack Bali distilled from fermented sap of palm flower. The use of traditional distillation equipment makes villagers unable to produce the drink with consistent quality. In fact, the...

The electrical power system comprises a generator, transmission, and distribution components. The substation is part of the electrical transmission system and contains a variety of equipment, including a 150 kV current transformer, which function is to measure electric current and to support protection...

Many waste materials are produced from manufacturing processes, service industries, and municipal solid waste, one of which is plastic waste. Plastic consumption from year to year is increasing uncontrollably. The amount of use is getting higher every year because of the high population density that...

A uniqueness of cooperative enterprise is distinguished principles; user-owner, user-controlled, and user-benefited. In terms of supply chain, this uniqueness should have impact on the business performance as there is almost no asymmetric information among the entities in the supply chain system. This...

Good transportation facilities will make it easier for an existing area to develop further. In order for traffic to flow smoothly and not be hampered, the condition of the infrastructure must always be treated and maintained. Until now, the guidelines used for steel truss bridges are Guideline No: 07/BM/2005...

The need for electricity is increasingly becoming a problem because of limited energy sources so that there are several villages that have not received electricity supply from PLN, one of which is Mallahing Village. The geographical location of the village supports the use of Solar and Bayu Hybrid Power...

This paper is the result of research that discusses how the types of mantras are in each stage of the red brick manufacturing process and how the effects of the Makassar language lexical resonance contained in the mantra text have succeeded in supporting the family economy for the red brick making job...

The Indonesian government has made a policy of work from home and social distancing when the Covid-19 Pandemic occurred until the middle of 2020. This led to the closing of food stall, and frozen food transforms into new products trend in this era. However, many consumers choose to cook at home instead...

In ASEAN countries, human development and level of productivity are still diverse where several countries have achieved higher level of development while the others are still in the middle and low. Human development has three main aspects namely education, health, and the economy and therefore needs...

The rapid development of technology and changes in the industrial era 4.0 is an innovation in monitoring and control over long distances. One example is the Internet of Things. The advantages of IoT are the particular interest to its users, easy installation, and the fact that it can be controlled remotely,...

Prostitution, a business that is synonymous with the black world, is one of the businesses that brings in money quickly. It doesn’t require a lot of capital, just a few bodies that are willing to do business. Prostitution not only has an impact on those who do it, namely the perpetrators and service...

Some agencies in the world warned that the recent flood disaster has been getting worse all over the world. Engineers have studied flooding and its impact with various simulation models. Yet, there is no model considered the best for all estimations of flood disasters in the future. In this paper, the...

This paper focuses on an evaluation of coding violation warned by a static code analysis tool while considering the change history of violation and the authorship of source file. Through an empirical study with data collected from seven open source software projects, the following findings are reported:...

This SMEs in its development has faced numerous problems related to the limitations of workers with high skills (low quality of human resources) and unmotivated employee productive behavior. Unmotivated productive behavior contributes to low employee productivity. Motivating employees to behave productively...

Trademark is an identity of any company. Each trademark contains meaning which can be revealed semiotically from its signs. This research were aimed to find out the semiotic signification process on five famous streetwear trademarks consist of Supreme, Gucci, Bape, Off-White, and Champion, to investigate...

This research article examines self-challenge, self-flexibility, and self-recognition as the first set of variables, and its relationship with entrepreneurial self-efficacy and entrepreneurial intention as the second set of variables. This research was conducted on business-management students at the...

Aquascaping is the art of designing an aquarium that combines water, plants, fish, and decorations to create aesthetic harmony. However, maintaining an aquascape poses several challenges, particularly regarding environmental factors such as unstable water temperature and suboptimal lighting. The ideal...

Nowadays, Ebola epidemic situation is more and more severe and out of control. Taking Sierra Leone as an example, we build a reliable and extensive model to control or at least inhibit the spread of Ebola. We select 16 cities that are affected by Ebola according to the news re¬ports. Taking advantage...

The besoyong mantra in ngumo (farming) activities is a series of ritual activities owned by the Paser indigenous people. This paper aims to describe the besoyong mantra in ngumo activities that have a significant role or function for the Paser indigenous people. The approach used is literary archaeomythology,...

The current research is aimed to trace and find out the ancient coins from Arabic found in the archipelago and their relation to literacy related to the history of the Islamization process and the accelerated development of Islamic civilization in this region. As a preliminary study, this research was...

There was flood event that occurred on January 30th, 2021 in Kuta Mandalika Lombok. There were many infrastructure damages but no injured people were reported. According to information, this January flood is the biggest flood that occurred in Kuta Lombok. The research method consists of is field survey...

Indonesia has a lot of abundant material resources. One of them is the availability of solid wood that can be used for bridge construction. The wood used as a bridge structural element has a 15-20 meters span with class III road loading capacity. However, wood has limited dimensions. Therefore, it is...

The spread of Covid-19 has influenced changes in human behavior and paradigm including in teaching and learning process. The teaching and learning process has now been replaced by E-Learning models which offer flexibility for both teachers and students. Current learning process can be accessed by students...