Solar photovoltaic (PV) systems operate during long time periods and produce a vast number of data. Traditional data collection employs a manual method with conventional instruments such as multimeters and thermocouples, which is a time-consuming process. Automatic-sensor based data acquisition (DAQ)...

Heat exchanger has wide use in many application such as in food industries, chemical, transportation, and refrigeration and air conditioning. Fan coil unit (FCU), one class of heat exchanger which is heat transfer occur by chilled water flowing across a series of finned tube bank for decreasing the air...

The purposes of this research was to investigate and analyze the effect of fluid flow variation to the performances of tube and fins radiator type. The research was done experimentally to analyze the heat transfer rate and the effectiveness of the radiator. The experiment research was carried out in...

This progress report contains about the achievement of the implementation of the program of research in the development of teaching materials in the form of an integrated jobsheet. The second stage of the development will be done in 2018 with the goal to find: 1) the evaluation result from the expert,...

As natural refrigerant, carbon dioxide has excellent thermo physics, safe, nontoxic and cheap. This reason causes the CO2 becomes the best refrigerant alternatives. However, CO2 refrigeration system still has relatively low performance when operate in hot environment temperature. This study aims is to...

This study focuses on development of corn-oil ester and tap water mixtures as novel solid-liquid phase change material (PCM) candidates for low temperature refrigeration applications with product temperature between -20 °C and -10 °C. Thermal properties of both tap water and its mixture with corn-oil...

As a family of heat pipe, oscillating heat pipe (OHP) has many additional unique operating parameters. This paper examined the characteristic of temperature evolution from start-up until dry-out stage of an OHP with extra-long dimension using methanol as the working fluid. The temperature evolutions...

Integrated management and control in the field of technology and communication is an awareness of the importance of the role of information systems and technology in supporting operational activities and services in an organization and government agency. This study will discuss the evaluation of the...

The rapid development of information technology, especially in the information systems area, has brought an easy to implement efficient work. Today, the most company still performs their business process manually, such as in conducting reseller search and assessing the performance of resellers tasks...

Laboratory management must be taken seriously and regularly, such as recording items in and out, students who enter to do scheduled lab work or free practicum and lecturer activities in conducting research can be recorded in a system. For this reason, an information system is needed to handle the recording...

CryptoCurrency has now spread its development as a medium of exchange and as a commodity that is traded 24 hours nonstop on various exchanges throughout the world. The basic nature of trading on cryptocurrency is how to obtain the lowest buying/price point and how to sell it at a higher price. This paper...

Video game industry has been steadily growing as a lucrative entertainment business for decades. Alongside the growth, consumer’s demand for bigger video games with more contents to explore and enjoy has also been on the rise. The demand naturally translates to higher development cost to developers of...

Traveling sales problem (TSP) is one of the classical optimization problems and NP-complete. The Challenge in implementing TSP is how to determine the shortest distance from a traveling route of N cities where each N city visited precisely once at time. In this paper, we attempt to analyze the completion...

Marketing methods for selling software have experienced many changes. In-app Purchase Method (IAP) is one of the breakthrough solutions in selling a freemium software, where users can download and use the application for free, but there are premium features that must be paid. One of the challenges on...

Accurate sales forecasting is needed by all companies, including by small and medium garment enterprises to be used in financial management. Accurate sales forecasting will make better inventory management, which indirectly gives benefit to the company. Limitation of human in forecasting sales without...

This study aims to design and build a software to help micro and small business in making financial statements. The built software is a combination of web-based and mobile-based. Mobile-based software allows businesses to register financial transactions in various places and require relatively little...

The purpose of this study was to determine the stages of creating a group tourist monitoring application using Firebase Realtime Database. Foreign tourists tend to visit Bali in groups and choose tour packages offered by the travel. During a tour at a tourist site, tourists are often too far away from...

Humans create systems that must support human achievement in the use of new application technologies to the user capabilities, and characteristics of the technology can be used optimally for the accomplishment of objectives. Availability of a support system is recognized as an essential aspect which...

Security is an essential aspect of information, especially in a network that is connected to the internet. Threats from inside or outside often disrupt network security. Telegram is a cross-platform messaging system that centers on the security and privacy of security and privacy of the wearer. The problem...

PPTP (Point-to-Point Tunneling Protocol) is a network protocol used in the implementation of Virtual Private Networks (VPN). PPTP uses a client-server design that operates at Layer 2 of the OSI model. Network administrators require the existence of performance testing Point to point protocol and VPN...

The Internet is a human connector with the virtual world. The number of internet users who access the data resulted in a density of data traffic resulting in inhibition of human work processes, therefore required action Load balancing as a technique to balance traffic data, spread through links, and...

The infrastructure management of information technology in the university is needed and started from the planning to the implementation. It is done so that the business processes of the university can run optimally. There were five stages in this research. Firstly, it was the data collection. The next...

Maize is one of the items in agriculture sub-sector food crops, which has a high-level carbohydrate and substitutes for other food sources besides rice. Maize has its superiority that all of its product’s yield can be utilized, starting from seeds, leaves, skin and even maize cobs can be used. East Java...

The aim of the study was to describe the effectiveness of online-based applied physics learning using interactive digital teaching materials. This type of research is quasi-experiment using time-series design. Effectiveness seen of four dimensions of knowledge and student response, Learning is a manipulation...

This research is descriptive research. The research aimed to analyze the learning result after using Basic Physics I teaching material to the First Semester Students of Physics Department in Unmus(University of Musamus). The subject of the research is 31 first semester students of Physics Education Department....

One of the keys to successful implementation of information technology within an organization is the willingness to accept technology among users. An evaluation process needs to be done to know the success and acceptance of a technology. An E-learning information system has been used since 2016 for the...

This study aimed at investigating effectiveness of Learning Centre (LC) to improve Darmasiswa students’ Indonesian competence. LC was designed as a site where students were able to learn grammar of Indonesian autonomously. It was developed as students found it difficult to study grammar in cooperation...

This evaluation study aims to determine the profile of the implementation of learning programs in PNB in terms of components: 1) context, 2) input, 3) process, 4) products, and 5) linkages of learning program products with context, input and process components. The study was conducted at the Bali State...

Lecture Scheduling Problems are very complex problems, where the core of the scheduling is how to schedule several components consisting of students, lecturers, space, time, and courses by taking into account certain limitations and constraints. The aim to be achieved is to apply the Tabu Search Metaheuristic...