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Pedagogic Content Knowledge (PCK) is very important for teachers because it shows teacher understanding of science knowledge and pedagogical knowledge. PCK covers the knowledge of content and pedagogy such as teaching knowledge (the subject knowledge and their belief in that, and how to teach it), curriculum...

Many buildings were built using zinc roofs in North Sulawesi province, Indonesia, there is more than 92 percent of buildings with zinc roofs. Buildings in humid tropical climates often face the problem of excessive heat due to the solar radiation accumulates, especially on roofs that can propagate into...

Accurate mining of customer requirements (CR) can better improve the design of e-commerce products, and the Kano model is an approach to quantify CR satisfaction. Yet related parameters are mainly obtained by questionnaires. This study preliminarily extracts CR from online comment data by keyword frequency...

The air quality in Jakarta is a critical issue affecting public health and the environment. High levels of air pollution can lead to various health problems, including respiratory issues, cardiovascular diseases, and other health disorders. This study aims to predict air pollution levels in Jakarta using...

Since 1990, due to Mongolia’s transition to a free market economy, the migration of the population to cities, especially to the capital, has rapidly increased. As a result, urban lands are expanding, forest use around the cities is becoming more chaotic, and the impact of urbanization on forests is increasing....

The magnetic levitation technique is introduced into the wind yaw system to reduce the yaw power. Permanent magnet in the nacelle and stator winding in tower are designed to suspend the nacelle. And the wind yaw structure including the disc motor rotor and variable speed gear is proposed to drive suspension...

In this study an experimental investigation was carried out on a turbocharger with variable nozzle turbine (VNT) and exhaust gas recirculation (EGR) system reducing emissions of a direct injection diesel engine. In the EGR system, the exhaust gas was tapped off before the turbine, cooled, and mixed with...

All industries including the government organizations have to follows the Occupational Safety and Health Act (OSHA) 1994 which required the employers to perform minimum duties to ensure the safety, health and welfare of their workers, and joint the responsibilities between employer and employees. With...

The human health risk assessment associated to the human exposure to polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and metals for the population living near a hazardous waste landfill (HWL) in Catalonia (Spain) is here presented. In summer of 2009 and 2010, two monitoring campaigns were...

State of the research about the technology of solar energy with LHTS Latent Heat Thermal Storage at home and abroad was firstly introduced, and a fresh air system with solar energy and LHTS was then introduced. After that the fuzzy control system of fresh air temperature was studied. Firstly, a mathematical...

In recent years, single photon detection technology has made a breakthrough in the field of medical imaging, and promoted the development of high sensitivity, low noise and high-resolution imaging systems. A new type of single photon detector (SPD) based on superconducting materials, wide band gap semiconductors...

A latitude-longitude positioning-method has been developed to determine the location of air-borne SAR(Synthetic Aperture Radar) imagery without GCPs(Ground Control Points) based on the F.Leberl Model by using GPS(Global Positioning System)/INS(Inertial Navigation System) system and errors caused by the...

The effect of moderate altitude on human thermal regulation and heat loss may influence human thermal sensation and comfort. This paper aims to clarify this effect and its impact on thermal sensation. Experiments were conducted in a decompression chamber where the air parameters were controllable. Barometric...

The serious accident is usually accompanied by combustion and explosion of premixed combustible gases in petrochemical industry. The local combustion flame that occurs in the gas pipe will accelerate the propagation and may become to a detonation. The flame propagation characteristics of premixed methane/air...

This study aims to reduce NOx emission by optimizing the secondary air system of the boiler using computational modeling and simulation. The shredded EFB is introduced in the inclined bed with primary air supply from the bottom of the bed. FLUENT Ver. 15.0 computational software is used to simulate the...

This review article provides an overview of the prevalent problem of air pollution in metropolitan and urban areas, emphasizing the imperative for innovative technologies to mitigate pollutants. It explores the application of photo-catalytic technology, utilizing nanoparticles such as meal oxides, to...

Tuberculosis cases continue to increase, so in eliminating TB cases, the right way must be sought and have high leverage. Stopping airborne transmission is an action that can be done quickly. This research has developed a prototype of a “room neutralizer”, which can kill microorganisms in the air. The...

Electric vehicles are increasingly in demand as an environmentally friendly solution to reducing air pollution. Reliable and efficient energy storage is critical to running electric vehicles to work optimally. With supercapacitors as a buffer in the lead-acid battery energy storage system, it can provide...

The practicality of the blended learning model to increase cadets’ activeness at Makassar Aviation Polytechnic is very effective. The model can be used as an alternative learning model to fulfill learning development and improve cadets’ competencies. The development of the learning model in this research...

Conveyor-belt hot-air drying equipment was developed and used in this study to investigate the feasibility of new heat-efficiency-improvement technology. This novel technology reduces the amount of heat generated by the heater in the new hot-air drying furnace. Sludge sample types A and B used in the...

Mathematical models of dynamics of pressure swing adsorption processes for the separation of synthesis gas (into hydrogen, carbon dioxide and carbon monoxide) and air (into oxygen, nitrogen and argon) have been developed. The models allow calculating the profiles of component concentrations and temperature...

For the long-span roof structures which have relatively low frequency and light mass, the vibration property under the action of fluctuating wind is significantly influenced by the added mass and aerodynamic damping. Since the influence can be reflected by the change of structural frequency and damping...

The operational effectiveness of naval gun's anti-air besides related to naval gun weapon system, also to a large extent under the influence of firing command decision making. How to reasonable use of naval gun weapon system's anti-air, we need to empty for naval gun firing command decision making problems...

The paper presents a new magnetic levitation spherical driving joint. It analyses the theory of air-gap magnetic of the driving joint and the mechanism of the generation of the magnetic levitation force and electromagnetic torque which based on the principle of reluctance motor. The mathematical model...

Settlement and housing development is the main activity in arranging the spatial layout of Palangkaraya, focusing mainly on the small-type house like type-36. Most of the type-36 housings planned by the developer are on peatland. Indonesia’s Public Housing Minister states that the type-36 house is appropriate...

COVID-19 is caused by Coronavirus which has been previously linked with 2012 SARS disease. This is an RNA virus. Highly contagious is nature; spreads by air droplet and contact. It needs both air and contact precautions. Interventions to prevent its spread have been tried which includes social distancing,...

The COVID-19 pandemic has changed more than just tourism, air travel and related industries. All industries have felt the change, leading to the term new normality. Significant changes have also taken place in the field of higher education. First of all, in connection with the transition to distance...

The problem in this research is the provision of agility training in improving soccer dribbling skills. This study aims to determine the effect of agility training on dribbling skills on SSB SerojaJambu Air Bukittinggi players. The method used in this research is an experiment. Sampling using a purposive...

High levels of unhealthy Air Pollution Index (API) can severely impact human health and the environment. Thus, effective preparation for such risk events relies on precise estimation of unhealthy API levels. This study proposes the Generalized Pareto Distribution (GPD) Method based on the Bayesian framework...

Establishment of Ministry of Tourism and Creative Economy at national level and the Department of Tourism in each region, the Indonesian government has focused on tourism. Through Government Regulation on Spatial Planning of the National Park, the Indonesian government announced ten tourism sites in...

With the development of air freight, the emergence of specialized freight airports, the gradual increase of full-freight airlines. The full-freight network has a great influence on the development of air freight, so it is necessary to carry out a more comprehensive analysis of the air full-freight network....

4.0 industrial revolution era has changed the character of the work, creating new jobs, and grow the creative industries. One problem faced by people with disabilities is the limited employment opportunities due to some limitations. Although the government has issued a regulation on equal rights, but...

Based on the construction experience of the undergraduate course in equipment purchasing management of Air Force Engineering University, which is "General Quality Characteristics and Management of Equipment", the current situation of the course was analyzed, and the teaching objectives and orientation,...

This study was being elucidated in order to understand the performance of water mobilization and transpiration in oil palm tree at the age of 2, 4, and 22 years old respectively. To gain that, we attempt to collect the data in regard with the large of total leaf surface (meter square), description on...

This article describes the Sigulai language, one of the minority languages on the island of Simeleu. Simeulue Island is a district in the province of Aceh, Indonesia. This province has several speech community groups including the Acehnese language which is still strong because it has the widest speech...

Drying the specimens is one of the crucial steps in plant preservation and the process of making Herbarium voucher specimens. This research was conducted to investigate the effect of the drying method on specimens in the laboratory using the standard method (oven) and drying in the field using a novel...

In order to improve the precision of quasi-dimensional model for predicting diesel engine performance, three kinds of air entrainment period in quasi-dimensional model for diesel engine working process is developed in this research. The software MATLAB/Simulink is utilized to build the quasi-dimensional...

Surge is a frequent problem in large axial flow adjustable suction fan. Cause of surge as well as hazard to unit and production was introduced. Pointed out that thermal power after the denitration system transformation, due to changes in the resistance of air and gas systems, so that the whole system...

With the continuous development of China's economic level, the amount of air traffic has improved a lot. More and more airports are constructed or expanded in China. In order to avoid the waste of resources caused by too large-scale planning, prediction for air traffic has occupied a more and more important...

His study is aimed determine the effect of health promotion media regarding food production a good way to increase awareness, inteterst and evalution palm sugar farmers in air meles atas village Rejang Rejang. Quantitative research methods to the design of the Pre posttest control group interventions...

The occurrence of metal corrosion can greatly reduce the air-conditioning efficiency, and even affect the safe and stable operation of equipment in central air-conditioning cooling water circulation system. Adding corrosion inhibitor to cooling water system is currently the most commonly and effective...

Science learning at the elementary school level in Pariaman is currently dominated by the use of lecture methods in delivering material. This study aims to determine the factors that influence the use of lecture methods in science learning in elementary schools. In order to obtain data, a questionnaire...

Combining Unmanned Aerial Vehicles (UAVs) with thermal infrared remote sensing provides a rapid, low-cost, and convenient method for measuring crop canopy temperature, which can be used to infer plant water status. This study utilized UAV remote sensing to capture thermal images of tobacco plants. Through...

Our country has entered the era of whole-process consulting and management after “the Opinions of the General Office of the State Council on Promoting the Sustainable and Healthy Development of the Construction Industry” (No. 19 [2017] of the General Office of the State Council) [1] proposed to cultivate...

Renewable energy still suffers from limitations. One common problem is intermittency. Energy storage technology can help overcome this problem. Compressed Air Energy Storage (CAES) is one of the energy storage technologies that has several advantages. The development of CAES must continue to be developed...

The background of this research is the diversity of cultures in Indonesian Government, cultural heritage including tangible, and not physical (intangible) which occurs because of the long journey of the history of the Indonesian people. and is very important in shaping the values ​​and pride of the nation...

A wing through which fluid flows will form a three-dimensional separation caused by two interacting boundary layers. This separation will result in secondary flow which can be detrimental to airfoil performance. Until now, aircraft often use a slotted type flap that can prevent separation so that it...

The advanced development of airport infrastructure is intended to improve airport services for air flight costumers. Thus, it is compulsory to maintain the sustainability system for service establishment. The purpose of this research is to apply the concept of Spatial Temporal Graph Neural Network (STGNN)...

Knowledge of refrigeration machines, especially Air Conditioners (AC) needs to be taught to master theory in class or Model Problem Base Learning (PBL). The problem that arises is the mastery of knowledge and skills in the form and mechanism of the control system on the latest cooling machines. In addition...

Coconut waste is an abundant biomass that not fully utilized as raw material for producing high added value materials. One of the product that can be made from coconut waste is activated carbon. Activated carbon is an amorphous carbon material with high degree of porosity and an extended surface area....