In order to study the aerodynamic performance of the quadrotor with different rotor spacings in hover, experiments were performed together with numerical simulations.For experimental study, an experimental platform was designed to measure the thrust and power consumption of the quadrotor with different rotor spacings (L/R = 2.2, 2.6, 3.0, 3.2, 3.6,
The formation of the Jakarta Bandung Mega-Urban Region (JBMUR) has created a rapidly urbanized corridor, the JBMUR south conurbation corridor.Due to its geographical location, the expansion process in the JBMUR south conurbation corridor has caused significant social, economic, and environmental problems.This study explores and quantifies Snowmobil
Bali cattle is very popular Indonesian local beef related to their status in community living process of farmers in Indonesia, especially as providers of meat and exotic animal.Bali cattle were able to adapt the limited environment and becoming local livestock that existed until recently.In our early study by microsatellites showed that Bali cattle
The planetary roller screw mechanism is used in the aeronautics industry for electro-mechanical actuators application.It transforms a rotational movement into a translation movement, and it is designed for heavy loads.The main components are made of martensitic stainless steel, and lubricated with grease.Like most usual rolling mechanisms, smearing
Dentin dysplasias form a rare group of hereditary dentin malformations Disk characterized clinically by normal appearing crowns but extreme mobility of teeth due to defective root formation.Both deciduous and permanent teeth may be affected.Delayed eruption and malocclusion may be associated features.This disorder is broadly classified into two typ