Composite is a combination of materials formed from mixing between two or more of the forming materials. This research aims to determine the effect of variations in fiber length with lengths of 4cm, 6cm, and 8cm with a volume fraction of OPEFB fiber of 30% and NaOH alkaline immersion for 2 hours. The tests carried out were tensile testing using ASTM D3039 and bending testing using ASTM D7264. Based on the study's results with the 30% OPEFB fraction with the highest tensile strength yield, the 8cm fiber length of 13,33 MPa was achieved. Meanwhile, the lowest value was achieved with a length of 4cm of 3,2MPa.

Traffic accidents are terrible scourge that occur in many countries, specially for developing countries where transportation affairs like tangled yarn. Besides functioning as an engine compartment cover, the hood of modern compact SUV can also help to manage the impact energy of a pedestrian’s head in a vehicle-pedestrian impact. This paper presents outer hood design of Esemka R2 that has a potential to improve hood’s ability and also to absorb the impact energy of a pedestrian’s head. The developed method for the design of an outer hood configuration aims to provide a robust design and homogeneous of Head Injury Criterion (HIC) for impact position at WAD 1000 and three different thicknesses (1.25 mm, 1.35 mm & 1.50 mm) of outer hood panel of Esemka R2 compact SUV, taking into consideration the limited space available for deformation. The non-linear Finite Element Analysis (FEA) software (Explicit Dynamics) was used in this research to simulate the testing procedurs of head impact for child pedestrian. The results show that the average of comparison dimensional of outer hood panel of Esemka R2 was 4.89 mm. The minimum of deformation space meet the requirement for HIC value which required obtaining robust and homogeneous head impact performance. Outer hood thickness and materials were identified as the factors to influence the stress and HIC value of the hood. By comparing all outer hood panels, aluminium alloy as the best selected material which has the lowest value is 32.78% for the pedestrian protection.

The reduction of carbon monoxide (CO), unburnthydrocarbon (UHC) emission and fuel consumption on spark-ignition four-stroke engine is continuously attempted. The purposes from this research were to determine the effect of Hydrocarbon Treating System (HTS)  on levels of CO, UHC and fuel consumption. This is an experimental research. Its is conducted by comparing the exhaust pollutant concentration such as carbon monoxide, unburnt hydrocarbon and also fuel consumption between standard engine setting and Hydrocarbon Treating System applied. The research variable are HTS flow rate from Q1 = 0 cc/s (without HTS), Q2 = 1,5 cc/s, Q3 = 2 cc/s, Q4 = 2,5 cc/s, and Q5 = 33 cc/s. The research will be done in three conditions which are low, medium and high rotation. The result showed that Hydrocarbon Threating System decrease fuel consumption up to 19,43% with flow rate Q5 = 3 cc/s, but on the other hand it increase CO emission up to 80.84% with flow rate Q5 = 3 cc/s and UHC emission level up to 124.75% with flow rate Q5 = 3 cc/s from engine standart condition.

Wet noodles are one of the foods that are favored by all people, especially in Indonesia. Wet noodles are made from basic ingredients of wheat flour or wheat flour. So far there have been many innovations of wet noodles with basic ingredients apart from wheat flour. The difference in the basic ingredients and additional ingredients can affect the quality of the noodles. However, it is not yet known whether the effect of the quality of the wet noodles is influenced by the type of flour used, the amount of the basic ingredients, or whether there is an effect of the extracts of other ingredients on the quality of the wet noodles. This is the reason for this research. Thus, this study aims to determine the types and differences in the use of basic ingredients in making wet noodles that can affect the quality of wet noodles. Measurement parameters used are by calculating the level of water absorption. The combination of wheat flour, cassava flour, and seaweed were used in this study. Calculation analysis is performed using the Taguchi method. The Taguchi method is the methodology in the world of Engineering which can be used as a method to measure or improve the quality of a product, as well as minimize costs. Wet noodle making experiments were conducted according to the Taguchi Design of Experiments (DOE) method. The repetition of the experiment was carried out eight times according to the orthogonal array (OA) matrix used. There are 5 control factors and 3 noise factors that are used in this study. Control factors are wheat flour, cassava flour, eggs, salt, and seaweed. Meanwhile, the noise factor is a lot of water, a long time to rest dough, and a long time to steam. ANOVA analysis and mean effect were carried out to find out which factors had the most significant influence on the quality of the noodles.