<p>Cerita atau dongeng merupakan suatu tindakan atau cara yang bijak dan cerdas untuk mendidik dan menasehati anak. Dongeng dapat memberikan efek pemuasan terhadap kebutuhan akan imajinasi dan fantasi anak. Anak akan lebih asyik dalam menyimak dongeng yang berisi nasihat adan ajaran atau didikan. Keinginan dan sikap-sikap positif tersebut tentu akan berdampak pada perkembangan pribadi anak usia dini. Dampak metode bercerita atau mendongeng bagi guru akan memiliki sikap-sikap positif seperti berpikir kritis, memiliki rasa tanggung jawab, lebih waspada terhadap praktek pembelajarannya sendiri. Lebih berhati-hati terhadap metode, persepsi, pemahaman dan keseluruhan pendekatan dalam pembelajarannya. Mampu untuk mengantarkan guru untuk lebih professional, berwawasan luas dan mampu memberi kontribusi terhadap perkembangan ilmu pengetahuan.</p>
The lack of wind speed capacity and the emission of photons from sunlight are the problem in a hybrid system of photovoltaic (PV) panels and wind turbines. To overcome this shortcoming, the incremental conductance (IC) algorithm is applied that could control the converter work cycle and the switching of the buck boost therefore maximum efficiency of maximum power point tracking (MPPT) is reached. The operation of the PV-wind hybrid system, consisting of a 100 W PV array device and a 400 W wind subsystem, 12 V/100 Ah battery energy storage and LED, the PV-wind system requires a hybrid controller for battery charging and usage and load lamp and it’s conducted in experimental setup. The experimental has shown that an average increase in power generated was 38.8% compared to a single system of PV panels or a single wind turbine sub-system. Therefore, the potential opportunities for increasing power production in the tropics wheather could be carried out and applied with this model.
<p><em>In the electric power system, the transmission system is a pathway to transmit electrical energy from the generator to the substation or from the substation to another substation which allows power losses and large voltage drops if the transmission length is relatively far and the overload is very high. affect the reliability of the transmission system. Analysis of power losses and voltage drop on the 150 KV high voltage transmission system at the Pati substation to the Jekulo substation. The analysis was carried out by conducting a survey at the research location then doing manual calculations and calculations using ETAP 12.6.0 software. The research method used was that the researcher collected voltage and current data at 10.00 and 19.00 WIB in one month and the transmission system supporting equipment specifications to be simulated in ETAP 12.6.0 from Pati and Jekulo substations in order to make comparisons between manual calculations and ETAP. 12.6.0.The conclusion of this study is the calculation of power losses manual calculation and simulation of ETAP 12.6.0 has a difference of 2.5% with the value of manual calculation power losses of 685.5 KW and the power losses from The simulation results reached 266.6 KW and the calculation of the presentation of power losses in the transmission line of GI Pati - GI Jekulo reached 6.8% exceeding the service percentage variation limit due to losses according to SPLN No. 72 of 1987 a maximum of 5% at least -10%.</em></p>
<p><em>This article reviews the optimization of energy generated by solar panels using MPPT. The need for increased power that </em><br /><em>can be done using MPPT with the P&O algorithm that goes to the load is proven because of the addition of influencing factors.</em><br /><em>MPPT A technique for keeping solar panels working. to stay within the Maximum Power point (MPP) area. MPP is a point</em><br /><em>or point in the VI curve or VP curve in the solar panel where the solar panel works at maximum efficiency and releases</em><br /><em>maximum power. The P&O algorithm is used to keep the MPPT power out panel always in the MPP area by changing the</em><br /><em>voltage value before MPPT and after the MPPT Comparison of the results of modeling with the use of techniques developed</em><br /><em>and special computer programs that have shown satisfactory results. Through comparison of the output power that comes out</em><br /><em>of the solar panel using MPPT 16.86406 W and without using MPPT of 13.63239 or experiencing an increase of 23%.</em></p>
There are many of food processing of raw materials are still using a separate tools of coconut grater and squeezer, which causes a long production process. Basically the grater machines on the market only can be used to scrape away the coconut meat. While the tool for extracting the coconut milk is still using coconut sieve and squeezed by hand. The Research initiated with a survey into traditional markets and entrepreneurs of coconut grater services around Semarang. The survey aimed to identify the tools used in the market and the needs of potential users. The survey obtained data of customer’s need that will be used as a reference for developing the concept of making tools. Anthropometric data needed to design the dimensions of the tool, with the purpose of the tool made will be ergonomics and comfortable to be used by the operator. Grater and Squeezer of Coconut Milk Tool which designed has dimensions of 105 cm height and 74 cm width. It has parts: the framework, grater, bleeder screw, motor, gear box, water container, and a pulley / wheel.
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