The wind is air that moves from a high-pressure area to a low-pressure area. Indonesia has the potential of winds that have speeds ranging from 2 m/s to 6 m/s which blow for a period of 6 hours/day. Many researchers have examined what kinds of problems are in the context of wind turbine energy generation. This study discusses the effect of wind speed and variations in the number of turbine blades on the power generated by horizontal wind turbines to rotate generators, case studies on the coast of Banda Aceh. The windmill used is a horizontal turbine propeller type with 5, 6 and 7 blade variations and made from Meranti wood. Electricity data retrieval is done by pairing the generator, so that the data taken in this measurement is in the form of wind speed data (m/s), speed of rotation of the wheel shaft and generator shaft, and generator voltage (V) and electric current generated. Data collection is carried out for 6 days at 3-9 m/s wind speed. The results showed that for wind speeds below 5 m/s it is more ideal to use a small number of turbines and for wind speeds greater than 7 m/s it is better to use a turbine blade with a large number of blades.

The public and non public company have the same goals in adjusting their technology and system for competition. The performance measurement is one way to control the company to achieve their vision and mission. This research aims to determine whether or not the performance of a government institution in Aceh is according to their standard. The first step is identify the problems using the Balanced Scorecard method, with four perspectives, namely financial, customer, internal business processes, and growth and learning. The result shows that there are 18 Key Performance Indicators (KPI). The next step is to calculate the values of each indicators. Finally, the result is compared with the KPI standard. The final result shows that the lowest value of indicator in 2017 is the simple work procedures with a score of 47 and a final score of 0.015. Meanwhile, the highest value of indicator in 2017 is the budget utilisation with a score of 124 and the final score of 0.245. Overall, the Disperindagkop has a very low value of 13% which means the condition is very bad. Therefore, the company needs further improvements to increase their overall performance value.

No abstract

Cutting Styrofoam manually will result in inaccurate cutting and dissimilar shape. To upgrade the quality of the product, a Styrofoam cutting machine which can cut automatically is needed. Thus, the aim of this research is to create a Styrofoam cutting machine using CNC 2 Axis Wire Cutter which can cut the material according to the CAD drawing module, and accelerate the cutting process. The control system of the machine uses the Arduino UNO microcontroller. The cutting process is performed by sending G-Code file to the microcontroller through the Universal G-Code Sender software. Afterwards, the microcontroller sends a signal to activate the stepper motor, and it is generated actuator movement according to the drawing in G-code file. The optimal Styrofoam cutting resulted by using CNC Wire Cutter with 0.2 mm nickel wire, 220oC, and 2 cm thickness.

No abstract