176 research outputs found
Pendidikan Sebagai Institusi Sosial
: Education and society cannot be separated; education takes place in society while the existence and the quality of society's life were determined by the level of education experienced. As a social institution, education grows and develops in society without knowing the level of culture, whether in traditional or modern society. Along with the development of society, raise also a demand to agencies and social institutions, a set of norms that revolve around a basic need in people's lives, including education. Thus, educational institutions are born as social institutions, from kindergarten, elementary, junior high, high school, and higher education
Autonomous Attitude Control of a Quadcopter Unmanned Aerial Vehicle (UAV)
This paper discusses on the development of autonomous attitude control of a quadcopter unmanned aerial vehicle (UAV). The Quadcopter system is modeled using state-space equations and simulated in MATLAB/SIMULINK. The paper describes the controller design method for automatic attitude control of UAV to enable the system to operate based on the task of the navigation unit. To be specific, the PID controller is designed to control and stabilize quadcopter attitude. Then Quadcopter acceleration control system will be designed. This system is designed by combining the attitude control on Quadcopter rigid body with acceleration control Quadcopter movement. Through the obtained results, the proposed PID controller managed to control the acceleration of quadcopter well
Manajemen Konflik Pada Organisasi Sekolah Dalam Meningkatka Kinerja Guru Min Bener Kelipah Kecamatan Bener Kelipah Kabupaten Bener Meriah
: Conflict is the portion that can not be separated from human life. Since humans recognize real life then the conflict has been with humans. School as a gathering place for humans can not be separated from the problems of conflict, so that the conflict there were feeling lucky and some are feeling dirugikan.Manajemen conflict of school personnel seek to direct the difference into sameness of thought, of be peace and the ultimate goal of this research is to understand how conflict management in organizations can improve the performance of school teachers Kelipah MIN Bener Bener Kelipah District of the central highlands. The method used is descriptive method with qualitative approach. Data collection techniques used in this study were interviews, observation, and study documentation. The data analysis techniques with data reduction, data display and making conclusions and verification. That is the subject of this research is the principal, deputy principal and teacher. results showed that: (1) The causes of conflict in the MIN Bener Kelipah is the understanding of teachers and principals about the concept of false conflicts, pressure, feeling aggrieved, oppressed, abused, role conflict and welfare of teachers. (2) The positive impact caused by conflict tehadap teacher performance: is the creation of discipline, increased teacher performance, increasing the quality of the formation of character education respect others. mature attitude and togetherness. While the negative impacts of conflict is the creation of groups within the school organization, the opposition, the decline in teacher performance, stress or crazy. (3) The strategy of conflict control done is: Understanding teachers\u27 economic, social, emotional, psychological, character and character approaches and sanctions (4) barriers to overcome conflicts also often perceived namely: doubt in conflict resolution, the more senior age familial nature , emotional, cultural and social status. Recommendations from this study, using constructive management style, encouraging equal participation and maintain a positive relationship for the duration of the conflict, which creates an atmosphere kondusip for school personnel
Flame propagation and burning rates of methane-air mixtures using schlieren photography
Different methodology have been shown to produce different results for Markstein length and laminar burning velocity of methane-air mixture. This study attempts to determine the aforesaid parameters using the newly developed closed vessel combustion chamber with Schlieren photography. Markstein length and burning rate of methane-air mixture was determined under the initial pressure of 1 atm, temperature range of 298-302K and equivalence ratio range of 0.7-1.3. Experiments were performed in a centrally ignited 29.16L cylindrical constant volume combustion chamber. Ignition energy was set at 25mJ for each experiment. The images of spherically expanding flame were recorded using Schlieren photography technique at a speed of 2000 frame per second. Analysis of the flame area yield flame radii from which the flame speed and stretch rate could be obtained. These parameters would allow the determination of Markstein length and burning rate of the flame. Results show that Markstein length magnitude increases proportionally with equivalence ratio with a magnitude ranging from 0.125cm to 0.245cm. Maximum burning rate occurs at equivalence ratio of 1.1 with a magnitude of 0.366 m/s. Flame of each equivalence ratio also exhibits fluctuation arising from acoustic disturbance. This disturbance becomes more apparent at higher equivalence ratio
Aluminum toxicity in acid sulfate soil alleviated with biogenic liming composites of blood cockle shell and palm kernel shell
Low crop yield from acid sulfate soil was caused by high concentrations of aluminum and iron in soil. Aluminum ion which cause root injury at root region inhibits the uptake of the nutrients by the root and lead to nutrient deficiency. Ground magnesium limestones can beapplied to overcome this problem but incurred more production cost. Biogenic liming agent from blood cockle shell and/or palm kernel shell are more cost effective and provide the essential element i.e. calcium. This study evaluate phase-association of Al in acid sulfate soil remediated using biogenic composites liming material using selective sequential extraction analysis. Biogenic liming composites were characterized for pH, proximate analysis and elemental composition. High ratio of BCS in composite retained Al in the residual form about 91.33%. Amelioration of soil with 100% PKS did not give significant reduction of the exchangeable Al.Keywords: soil remediation; phytotoxicity; abiotic stress; calcination; alkalinity
Waste management: a qualitative study exploring the perception of flood waste management among the community of Pasir Mas
The purpose of this paper is to examine the 2014 post-flood waste management in affected area. For this purpose, Pasir Mas in Kelantan was chosen as the sample area and interviews were conducted with the residents. The interviews aim to gather information about post-flood waste produced, sources of the waste, actions taken by the residents and related authorities bodies to clear the waste, impact of the waste on their living surroundings and health, and assistance needed to manage the waste. A total of 39 respondents consisted of 20 men and 19 women were selected at random for focus group discussion. These respondents represent persons of age 25 years old and above, local and whose living quarters have been affected by the flood. The large volume of mud left by the flood has been identified by the participants as the main source of the post-flood waste. In addition, good cooperation between government agencies and the residents is important to speed up the waste clearing works. However, residents are in much needed support, awareness and education about the impact of long due waste clearing on their health and living environment
The design of IPT system for multiple kitchen appliances using class E LCCL circuit
Since many years ago, kitchen appliances are powered up by cable connected. This create a troublesome case as wire might tangle together and cause kitchen table messy. Due to this, wireless power technology (WPT) is introduced as its ability is to transmit power to load without physical contact. This leads to cordless solution better in safety as the product can be completely seal, highly expandable power range. This work focuses on the design of WPT based on inductive approach to power up multiple kitchen appliances. The selection of inductive approach over its partners capacitive and acoustic is mainly due to high power efficiency. Class E inverter is proposed here to convert the DC to AC current to drive the inductive link. A 1 MHz operating frequency is used. To ensure the circuit is robust with load variations, an LCCL impedance matching is proposed. This solution is table to maintain the output power if there is a slight change in load impedance. Finally, the developed prototype is able to supply 50V utput which can achieve power transmission up to 81.76%
A New Class of Dual-mode Substrate Integrated Waveguide (SIW) Filter with Two Metalized Posts
This paper presents the investigation and characterization of dual-mode Substrate Integrated Waveguide (SIW) filter with two metalized posts on the cavity to reduce the overall volume of RF front-end subsystems. By introducing two vertical metalized posts and two diagonal metalized posts in dual-mode SIW filter, both SIW filters show different flow of Electromagnetics (EM) can be identify from the E-fields. In order to compare which dual-mode SIW filter gives the better performance, the designs are simulated at centre frequency 2 GHz using CST Studio Suite software and the results are validate through measurement. The measurement shows a good agreement with the simulated results. This design is suitable for any integration microwave system where the reduced complexity of the design and cost as well as weight is very important for the wireless communication
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