Many researches related students’ perception towards assessment types, assessment tasks and classroom assessment environment, but related perception of assessment approach (assessment of learning, assessment for learning, and assessment as learning) seldom be done. The aim of this research was describe...

The purpose of this research was produce carbohydrate metabolism student worksheet based on valid and effective inquiry. Validity of student worksheet was gained by validation sheet instrument, and the effectiveness was obtained from study result completeness and student’s response to student worksheet....

The research aim was to describe geoscience project design to improve students’ conception and research skill in geoscience. This research was conducted to undergraduate physics student at one of the state university of education in Bandung-Indonesia. The total subject were 34 students and divided into...

Overtime is defined as work carried out by employees, on the basis of orders from superiors, which exceeds normal working hours on weekdays, or work carried out on employees' weekly rest days or official holidays. The time and overtime pay are already regulated in Law Number 13 year 2003 concerning Employment,...

Indonesia is an agricultural country. Agricultural land still extends throughout the archipelago. In modern times, there are many agricultural lands that have been done with machine tools, like the rice paddy hand tractor. Hand tractors are widely used in rural or inland rice fields. Its function is...

The mobile robot is one of the Unmanned Vehicle that belongs to Unmanned Ground Vehicle (UGV) which has the ability to be remotely controlled. The advancement in navigation has enabled new opportunity to send the UGV to explore new area or disaster mitigation. The path is set with the help of digital...

The aim of research was to be aware stability of supercapacitor capacitance for 50 cycles. Supercapacitor device in this research was fabrication into sandwich form, that consist a pair of activated carbon/10 wt% PVDF electrode separated with hydrogel polymer. Furthermore do characterization using cyclic...

Every year the population in Indonesia is increasing so that the electricity needs needed will also be greater. Considering that environmentally friendly electrical energy generation is needed, solar cells are the right choice. Today many have used and developed solar cells as PLTS (Solar Power Plants)....

The Extra High Voltage Air Line (SUTET) is a transmission line conductor with a voltage of 500kV which aims to deliver electrical energy from the plant to the load center, so that electrical energy can be efficiently discharged. The gap between the distant towers and the different tower construction...

Unmanned Aerial Vehicle (UAV) has many uses, including aerial photography, aerial mapping and monitoring activities. Quadcopter is a type of UAV that uses four rotors. The speed of each rotor has a considerable influence on the movement. The quadcopter movement can be done in this research, namely the...

The use of wireless or wireless communication technology is currently growing rapidly. To establish a wireless communication device, an antenna is needed to send and receive electromagnetic waves or signals during the data transmission process. In this research we undertook simulation, fabrication, parameter...

Arm manipulator is one type of robot that is widely applied in the industrial world. Robots of this type are commonly used to help people in the hard work, dangerous or repetitive work. The needs of industrial machine in Indonesia have been increasing based on industrial development that has been increasing...

Changes in load on electric power systems are unavoidable at all times. But the increase in load that is not accompanied by additional capacity will cause the system to operate abnormally. The normal or abnormal condition of the power system leads to electrical voltage problems. Excessive reactive power...

Flood disasters are usually caused by the rising of sea water and high rainfall resulting in high water discharge. One way to reduce the impact of losses caused by standing water is to measure the height of the water discharge. An ultrasonic sensor that is based on a microcontroller can be used to measure...

Drip irrigation can be applied in greenhouse farming system, which small amounts of water and fertilizer can be feed uniformly to the crop root zone. In this work, an IoT-based drip irrigation monitoring and controlling strategy for greenhouse farming systems is proposed. It aims to automatically control...

Generally, there are two approaches to software development, traditional and agile. Traditional is heavy and well documented, agile is light and less documentation. Personal Extreme Programming (PXP) is one of the agile approaches that iterative, more flexible and responsive to changes. This research...

In general, the vehicle number plate detection system in an image should be able to overcome two problems, first how to determine the position of the vehicle number plate or which vehicle number plate is on an image and the second how big is the plate. A number of vehicle license plate detection methods...

Document retrieval aims to find documents in a collection of unstructured text to meet the needs of user information. The search engine was required in the document retrieval system to perform the entire process automatically, starting from the processing of document text in the collection, feature selection,...

Selection technique is one of the genetic operator in genetic algorithm (GA). Define the best selection technique is critical in order to get the optimum solution for certain problem. The purpose of this study was to compare 3 selection technique in high school scheduling problem using distributed GA...

This paper discusses the application of copper pulsating heat pipe as passive thermal management on solar cell panel. In this study, an analysis of 30 Wp polycrystalline solar panel surface temperature with heat pipe is discussed. A 1000 W halogen lamp is used to illuminate and heat the solar panel indoor...

In the process of learning electrical installations, practical activities are very important to be carried out so that students have the skills. Affective domain is one aspect of learning. This affective domain affects individual activities in learning activities including the practice of electrical...

There are two variants of processed coffee, there are brewed coffee and instant coffee . Each coffee have their own consumers. The difference of consumer preference on coffee consumption led to research idea about factors that affecting consumer preference on coffee consumption. This research was conducted...

Increased consumption of meat consumers supports consumer patterns including consumption of processed meat. The purposes of this study are (1) Identifying consumer characteristics of several packaged meatball products in the study area (2) Analyzing consumer ratings based on the performance of the packaged...

The aims of this study was a) to analyze the factors that affect the performance of production of white cigarette industry, b) analyze the factors that affect the performance of the consumption and c) simulate, if the government a tax increase of 5 percent or 20 percent of the performance of the industry....

Development of agrotourism in unirversities are still rare in Indonesia, including in East Java, especially in Surabaya. National Development University "Veteran" (UPN "Veteran") East Java, especially the Faculty of Agriculture is one of the universities in Surabaya that plans to develop agro-tourism...

That HET is considered too low to absorp farmer’s rice so that rice processing industry becomes farmer’s choice to sell rice and their product become choice on middle and upper class consumer, especially urban society. This research was conducted to analyze the HET policy by forecasting on rice price...

The research aimed ad analyzing and evaluating the banking service quality in East Java. The research to know the service standard which is suitable for the customer's desire and arranges an improvement priority of service quality that should be given to the customers. The method used to measure quality...

The measurement of banking service quality was done by Fuzzy servqual method. Service quality used five dimensions contained in servqual was tangible, reliability, responsiveness, assurance, emphaty. The results of this study indicated that the gap value of the five dimensions had a negative value. It...

Sota communities mostly depend on local agricultural income. The purpose of this research is to know the role of business in the field of livestock to social level (welfare) in Sota District community in environmentally border area. The method used is a survey using questionnaires to 90 respondents selected...

Vocational Blended Learning (VBL) has been applied in Information Systems Management courses at one of the vocational colleges in Indonesia. This research objective was to measure student learning result after going through the learning process with the VBL model. The research was conducted using descriptive...

The e-servicescape as a valuable variable in the development of the digital industry needs more attention to be explored to improve the organizational performance so that this research uses e-servicescape as the main variable. This study attempts to explore the mobile-based online shopping in Indonesia...

The objective of the study was to examine production performance with probiotic use in a feed with an addition of spices as an environmentally friendly catfish culitivation engineering by measuring growth based on looking at SGR (Specific Growth Rate), FCR (Feed Conversion Ratio), PR (Protein Retention)...

This study aims to analyze the factors that influence the environment in the effort to develop the processed cocoa industry and the efforts made to encourage the development of the East Java processed cocoa industry. The basic method used was descriptive quantitative and qualitative descriptive with...

This research aims to find the influence of the insole in the shoe for the patient who suffered from disorders of the feet. Diabetic patients generally experience a disruption in the feet. This disorder is a stabbing pain when the patient performs activities. The patient is asked to use footwear Ankle...

To fulfill customer satisfaction, the company must have strategies for managing services properly. The strategies are meant that can affect customer satisfaction, image, and loyalty. Public lack of confidence in the Lion Super Indo Company caused by services is still not good enough. Complaints that...

The design stage is the greatest stage in determining quality of a product and production process cost. Manufacturers have to apply the concept of supporting the optimization of raw material to produce good quality products at competitive prices. Modularization is an approach to simplify complex products...

Material handling can be done with the help of equipment or manually with various methods or working positions. One of the real work which we seen everyday is material handling from warehouse to truck with using stairs, where we don’t know how to use slope angle by right so that it can result high productivity....

Concrete iron produced by PT. Hanil Jaya Steel still has product defects in the form of line defects, village defects, nguping defects and flattened tip defects of 3.22%. The company wants to control the quality of this concrete iron, thereby reducing product defects. This study aims to determine the...

One of the determinant factors in work productivity is an employee. An employee who feels comfortable with his work activities can increase productivity. In implementing the comfort for the employees, it is necessary to pay attention to the work position or posture which is ergonomic. this is because...

Partial Least Square is a more flexible SEM (Structural Equation Modelling) method because it does not assume normally distributed data such as CB-SEM. PLS can also be applied to reflective and formative models with smaller sample quantities. In this study, PLS serves as a predictor to look for variable...

Small and Medium Industry (SMI) is an industry that drives national economic growth in Indonesia. Its existence makes it as the main industry supporting the activity of manufacturing industries globally. Since the existence of SMIs for the nation’s economy is important, it is necessary to make an effort...

Content Management Systems (CMS) are widely known to provide a simple and practical way to create and administer a web application including e-commerce. A variety of CMSs exist which offer different features needed to develop an e-commerce. Nonetheless, there is limited knowledge on what framework can...

e-Participation is an interesting field capturing how technology can support community empowerment in public decision making. Data Science is also an emerging field that uses methods, processes, algorithms and systems to develop pattern, knowledge and insights from tructured and unstructured data. It...

The production process of a company is very dependent on the availability of raw materials. Raw materials will be available if there are suppliers who send raw materials continuously to the company. As we know that each supplier has difference in price, supply capacity, delivery time and quality of raw...

There were many researches that discussed about performance of Ad hoc on Demand Distance Vector (AODV) in Mobile Ad-hoc Network (MANET). Some of them used mobile velocity and traffic congestion as variables in their observation. This research becomes very important because the writer of this paper was...

Cloud computing is a technology model in which resources such as computer components (processor, memory, network, storage) are no longer real problems, but abstract. One cloud service is Cloud Storage. With Cloud storage facilities, users can store digital data that is kept secret securely via the internet...

Banners are one of the promotional tools. Banners have been printed with digital printing. Banners are usually used as media announcements or conveying aspirations about an activity. Banner is a simplification of billboards. Banners are usually designed in portrait or vertical form. Until now, banner...

Among ASEAN countries, Indonesia is first ranked shrimp producers. Although shrimp from Indonesia is one of the main producers in the ASEAN region, in fact the potential of each province has not been explained in detail, so it needs to be studied further related to shrimp production in every province...

this study is still an initiation stage for implementation in Northern Maluku Archipelago. Because of the characteristics of the archipelago and many black spots in rural area. An alternative research is conducted to overcome technical problems in rural areas of the archipelagoes. One of the alternative...

Bilateral filter is one method of image quality improvement that is nonlinear and adaptive. Bilateral filters combine geometric proximity and color intensity similarity in mathematical calculations. This method has advantages in improving image quality compared to previous methods. Bilateral filters...

Technology for communication in business processes by companies or organizations, in the form of services, is increasingly felt the benefits that ultimately encourage the use of information technology, with a guarantee of good service management becoming a fundamental need. Nowadays the Informatics Engineering...

Displacement of kerosene to Liquefied Petroleum Gas (LPG), giving a positive impact as one of the staples in several respects. Viewed from the increasing demand for gas fuel (Liquefied Petroleum Gas), government through Pertamina launched a system to monitor the process of distribution of liquefied petroleum...

Blood Transfusion Unit (BTU) is a blood bank of Indonesian Red Cross (IRC) which duties are to give service, collect blood donation, store and distribute blood according to the request of people in need. Administration process of BTU Merauke is in trouble due to conventional blood donation data management....

Information needs by the community of Merauke Regency in this era are becoming more complex and diverse. The community needs a quick and easy access to obtain the information needed, one of them is by using a smartphone that is now owned by almost all people in the city of Merauke from various backgrounds....

Government agency is one of the elements supporting the implementation of regional autonomy in any fields applying decentralization tasks. Service offices in Merauke Regency consist of 20 regional agencies, 7 regional technical institutions, 1 regional public hospital, 1 civil service police unit, and...

Generally, if there are several complex criteria, constraints will occur in decision making. The decision making process faces the priority of several alternatives. Sometimes, decision making occurs using mere subjective values. This is not supposed to happen in determining teacher’s quality. Based on...

Research on remediation of chromium and cadmium metal contaminated soil using compost has been carried out. Added compost was 5%, 10%, 15%, 20% and 25% w/w. The study was conducted for 14 days and observed a decrease in the concentration of heavy metals in the soil. Measurement of heavy metal concentrations...

Polyaniline is one of the conductive polymers that can be funcionalized as a sensitive layer on quartz crystal microbalance (QCM). The sensitivity of polyaniline can be enhanced via dedicated its morphology. The plasma oxygen treatment is used to modify the surface of polyaniline coating. The purpose...

Recently many portable devices need electrical energy which instant and high capacity. Lithium-ion battery is one of very popular as mobile electrical energy source for them. This study focused to elaborate the electrical performances of reduced graphene. They were electrical conductivity, cycle performance...

The Analysis of morphology, porosity and absorption of Fe3O4 nano particles coated with SiO2-NPs has been carried out; use polyethelen glycol as a core for forming core-shell Fe3O4@ SiO2/PEG. SiO2-NPs is prepared from quartz sand by hydrothermal and coprecipitation methods; Fe3O4-NPs have been prepared...

Engraving of polymer materials using cutting laser is a popular process in some manufacturing industries. This research presents the manufacture of waveguides channels on polymethyl methacrylate (PMMA) substrate using CO2 cutting laser process. The CO2 laser engraving machine has cost effective and takes...

Graphite is a material that has excellent mechanical and thermal properties, as well as a wide application level, especially in the form of nanoparticles. High Energy Milling (HEM) is one of the methods used in the formation of nanoparticles by reducing particle size mechanically. In this research, variation...

In order to develop a new coolant for nuclear and non-nuclear applications, nanoparticles of Al2O3 for nanofluids have been successfully synthesized by solgel method utilizing AlCl3 as precursor and urea as chelating agent. The mole ratio of the AlCl3 and urea was 1:2. The solution was stirred to form...

Among various forms of developed robots, legged robots are often used to overcome problems that cannot be solved by wheeled robots. The often occurred problem while developing this typical robot is about the flexibility and efficiency of the robot movement. In addressing the problem, this research aimed...

This paper presents findings of a qualitative study on efforts to engage elementary school students in small-group and whole-class discussions as part of the process of learning mathematics. Characteristics of the process of facilitating small-group and whole-class discussion are examined, as well as...

This study aimed at exploring middle school mathematics teacher’s views on mathematical literacy and context-based task. Data were collected through questionnaire items filled out by 91 teachers at two districts in East Java province, Indonesia. Data were analyzed by scoring the teacher responses and...

Critical thinking skills are one of the most important life skills in the 21st century, because critical thinking skills can improve intelligence in life skills. Critical Profiles of critical thinking skills and their relationship to students' metacognitive skills are obtained from in-depth problem-based...

In the present paper we discuss dynamics and numeric simulation of prey-predator model with stage structure. Prey populations which is divided into sub populations, one is immature prey and the other is mature prey The focus of the study of the stability of prey predator prey models as well as local...

Higher-Order Thinking skills (HOTs) are needed to form our students to become more critical and creative individuals facing this sophisticated age. Teachers are required to be able to present learning that trains students to reason, think critically and creatively. This article presents the results of...

Impact of climate change is very complex because it occurs in various sector of live such as health, agriculture, forestry and transportation. Extreme weather is one of climate change effect, that is a weather condition or phenomenon above normal that occurs in a particular area with short term duration,...

We often find plants that have similarities in terms of shape and texture. In agriculture if we want to plant a plant species, other plants will be called weeds as they can inhibit plant growth. We can easily classify plants and weeds using image processing. Watermelon plants were the objects of this...

This research aims to describe students' errors based on the Newman procedure in solving narrative questions on whole number reviewed from cognitive style and its causing factors. This was a descriptive qualitative research with the students of fourth grade of SD Negeri 1 Merauke of 2017/2018 served...

The development of science and technology in various parts of the world is influenced by progress in the field of mathematics. Therefore, the countries that ignore mathematics education as a top priority will be left behind from other countries that provide a place for mathematics as an important subject....

This research aimed to produce Lower Secondary Mathematics Teaching Materials with the Scientific Approach Oriented to Problem Solving Ability including Lesson Plan (RPP), Student Working Sheet (LKS), and a valid, practical and effective student Learning Achievement Test (TPB). This type of research...

In today’s world of work, the rate of competition among job-hunters is getting increasingly higher. In addition, some companies want to recruit human resources who have more work skills and knowledge in order to improve their quality and productivity. Both skills and knowledge are necessary regardless...

The application of technology has developed in the field of traffic. The occurrence of traffic violations and an increase in the number of accidents triggered by the speed of vehicles that exceed the maximum limit specified. It especially two-wheeled vehicle or motorbike. The small form of a motorbike...

Intelligent transportation systems are now starting to develop. One aspect of the intelligent transportation support system is how to recognize a vehicle. Vehicle plate recognition is an important function of this system. Plate detection systems have two problems, namely where the plate is located and...

The aim of this research is to compare the gravitational acceleration based on the two different apparatus measurement. That two apparatus are similar, use free fall setting. That difference is in time record method. This gravitational acceleration determined from metal ball fall’s time in a predetermined...

The aim of this research is comparison wood-metal load system (experiment 1) and wood-sand load system (experiment 2) to find the static friction coefficient on wood and the effectiveness of both system. This study used a descriptive quantitative approach by using graphical analysis method, the manipulation...

The true using of cosmetics will give so many good effects such as healthy, elastic and younger face, otherwise bad using of cosmetics can cause many problems such as Acne, spot, oily skin and dry skin. This clinical research using nanogold and nanoseaweed was aimed as a solution for negative effect...

This research aims to analyze college students’ misconception on optical concept. Participants were 36 college students of sixth semester from one intact class. College students’ misconception of geometrical optics were measured by a three-tier misconception test. From the data collected we were determined...

This paper present the description of students’ reasoning on physics related to visual representation. This research used descriptive qualitative method. The subjects consist of 25 college students. Given some physics problem with visual representation, students answer it with different reasoning. Students...

Fostering problem solving-skills on prospective science teacher is a challenging task, yet problem-solving skills is needed in 21st century live. The aim of this study is to foster problem solving skill on prospective science teacher through problem-solving tasks on sprint exercise theme. Method of this...

The purpose of this study was to describe the validity of the project based laboratory learning (PjBLL) model to increase science process skills and scientific creativity of students. Collecting data use preliminary research and validation phase of physics learning expert in the focus group discussion....

Oxidation Ditch Algae Reactor (ODAR) is a wastewater treatment reactor utilizing symbiosis between algal cultures and bacteria. ODAR reactors have large circular basin equipped with aerators. Pathogenic Escherichia coli is believed to mostly live in the contaminated area, which it could influence human...

The 2nd generation HDPE Recycle Hot Press machine is the revamps of the first generation machine. The first generation hot press still has many shortcomings that make production results not optimal, such as porosity defects, limited product dimensions and the manual pressing process. The method used...

Machining processes are spent a lot of energy in the manufacturing industry. On the other hand, we understand that energy should be minimum. The purpose of this study is to find the optimal machining parameters that allow the most energy-efficient processes. The study focused on optimization of parametric...

This research aimed to discuss the manufacturing of The Heat Exchanger Cooler Type U-Tube with 2 types of fluid, water as cold fluid and oil as hot fluid, which flew in opposite direction. There were 2 methods which used in this research, the empirical method and the experimental method. The empirical...

hot plate, magnetic stirrer, infrared MLX90614, PID controller

How to build a corn dryer that is not weather dependent yet energy efficient? And how the characteristics of corn dryer?. This research objectives are: Design and develop a dehumidifier heat pump dryer for corn drying. Observing the characteristics of drying time, temperature and humidity of drying air...

The operation of the Water Treatment Plant (WTP) requires electrical energy to drive chemical systems, namely dossing pumps and chemical mixers and lighting lamps. In WTP, most of the gravity systems are located far from settlements and most of the access roads are quite difficult, and there is no electricity...

Renewable energy is environmental-friendly energy compared to the conventional one. Wind energy is a renewable energy having big potential in supporting clean energy revolution in Indonesia. This research aims to calculate the wind energy potential power that can be used as a power plant. The data collection...

Modeling of wind speed characterstic in a particular location is often conducted, one of which is to find out the potential of wind energy in the interest of wind power plants. Of the many probability distributions, the following distributions are distributions that are quite commonly used to model the...

A study was performed on the production of sago pulp composite board and characterization of its mechanical property, i.e. tensile strength test. Sago pulp composite board was made using resin epoxy amplifier. A sago tree can produce 75-85% sago pulp which contains 65.7% starch, 21% lignin, and 20% cellulose....

The thermal condition in lease houses in Merauke is very uncomfortable, one of the causes is that the existence of home furniture that are not well organized in many lease houses causes the circulation of space to be not smooth. With the condition of a narrow house with more and more needs, the need...

Wick must provide in order that heat pipe can be operate in any orientation. Wick provide the driving forces to circulate working fluids. A novel sintered molecular sieve and hybrid molecular sieve-Cu would be use as wick heat pipe. This paper presents the results of investigation on porosity and microstructure...

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...

The copper coating process on multi-walled carbon nanotubes (MWCNT) has been carried out by electroless plating method to improve interfacial bonding between MWCNT and alumininium matrix. The initial step of electroless plating is to pre-treat MWCNT which includes oxidation (hydrophilic treatment), sensitization...

The Balinese people cannot be separated from their cultural and religious customs. The religious procession for Balinese people is conducted to express our gratitude to Ida Sang Hyang Widi Wasa (The Almighty God) for the gift he has given. One of the ceremonial facilities used is tumpeng, and in aseries...

Components in the field of transportation that greatly affect the amount of transportation costs are fuel, tires and maintenance costs. On average, a tire used by commercial vehicles such as a truck, must replace all of six tires every 3 months, with a cost of approximately 1.5 to 2 million rupiah on...