A mixture of waste cooking oil with diesel fuel there has not been used people to fuel stove the stove. During this time, many people used the oil land on the stove, but the price is very expensive. This study aims to look for materials alternative fuels substitute oil ground to the stove furnace wheelbase. To get the performance of the fuel best eaten do a variety of treatment ratio a mixture …
Pulp industry generally uses wood as raw material for pulp making. The limited number of wood raw materials causes a raw material crisis. Indonesia is a rich country of agricultural and plantation products, one of which is corn. Corn and corncobs contain 44.08% cellulose content that can be used for pulp making. This research uses raw material of corn husk and corn cob. The fixed variables were…
Ink markers are tools that often used for writing on the whiteboard. It's different from chalk, ink markers have high levels of VOC (Volatile Organic Compound) and very harmful to health due to the xylene content in it. One of the chemical constituents in mangosteen peel is tannin. Tannins that contained in mangosteen peel can be processed back into the basic ingredients of ink marker that safe…
The pulp industry generally uses wood as raw material for pulp making. The limited number of wood raw materials causes a raw material crisis. Indonesia is a rich country of agricultural and plantation products, one of which is pineapple leaves. Pineapple leaves contain 71.5% cellulose content that can be used for pulp making. This research uses semi mechanical soda method. The fixed variable of…
Biodiesel is an alternative fuel that is similar to diesel. Previously many biodiesel developed using raw materials of vegetable oil, but for raw materials using animal fat is still not widely developed. One of animal fat that can be used as raw material for making biodiesel is chicken fat. In this study chicken fat will pass through the hydrolysis stage before transesterification into biodiese…
Wrapped oil has not been maximally utilized. The purpose of this research is to utilize cooking oil as fuel mixed with diesel oil with certain ratio. Before the mixture is used as fuel in the furnace stove first, it is treated with a detergent adsorbent. To get the best fuel performance, then treated variation misbah cooking oil : Diesel oil (1:9, 2:8, 3:7, 4:6 and 5:5) treatment ofvariation of…
This final project discusses the retrospective reserve using Weibull distribution. The retrospective reserve is the calculation of reserve based on the total past income minus the total past cost. The calculation of retrospective reserve using Weibull distribution is carried out by determining the life probability of last survivor status using Weibull distribution, life annuity of last surv…
This nal project discusses the combination Green's function and Picard iteration to nd the numerical solution of the third order boundary value problems. Analytically, convergence of the method is proved using the contraction principle. It can be seen from some numerical simulations that the proposed method can be used as an alternative method to solve third order boundary value problems…
This final project discusses the estimator for parameter of inverted exponential distribution. The estimators is obtained by Bayesian statistics under squared error loss function and precautionary loss function. The criteria of the estimators obtained are biased. The value of mean squared error from estimators are obtained by R language simulation. The simulation results show that Bayes es…
This final project discusses a new secant-like method, derived by combining two secant methods, to solve nonlinear equations. This method has order of convergence 2:618 and requires two initial guesses to be applied. Furthermore, the computational results show that the proposed method is superior compared to secant’s method and Newton’s method in obtaining an approximation root. Keywor…
This study aims to analyze (1) Value-based leadership directly affect positively and significantly to the work culture (2) Value-based leadership directly affect positively and significantly to job satisfaction of teachers (3) Working culture directly affect positively and significantly to job satisfaction of teachers (4) value-based leadership and work culture positive and significant direct e…
This final project discusses the estimator for parameter of exponential distribution using Bayesian statistics. Prior distribution used is the extension of Jeffrey’s prior. Bayes estimators are obtained by quadratic loss function and entropy loss function. Bayes estimators under quadratic loss function and entropy loss function are biased estimators. Mean squared errors of Bayes estimato…
This final project discueses the determination of pricing Asian call option by applying variance reduction techniques in Monte Carlo methods. Monte Carlo method is method to approximates the expectation of random variables. Control variates techniques can increase the efficiency of Monte Carlo method in term of variance. One variance reduction techniques include control variates. Implement…
This final project discusses the present value of future benefit and the due life anuity under uniform assumption for the case of multiple decrements using Rendleman–Bartter interest rate model. Interest rate models of Rendleman– Bartter have parameters and to be estimated, where the parameter in the model is estimated using MLE (maximum likelihood estimation) and then followed by …
This final project presents the use of a weight function to derive a new family of eight-order method for finding a simple root of nonlinear equations. Per iteration the method requires three function evaluations and one first derivative function evaluation so that the efficiency index of the method is 1.682. Numerical comparisons using some test functions indicate that the method can be u…
Ink markers are tools that often used for writing on the whiteboard. It's different from chalk, ink markers have high levels of VOC (Volatile Organic Compound) and very harmful to health due to the xylene content in it. One of the chemical constituents in mangosteen peel is tannin. Tannins that contained in mangosteen peel can be processed back into the basic ingredients of ink marker that safe…
The final project discusses the quadratic spline rule to solve quadrature problems. A given function f(x) is interpolated by the interpolation quadratic spline then it is integrated. Computational examples show that the solutions of the quadratic spline rule are better than the comparation rule to approach the exact solution. Keywords: Quadrature, trapezoidal rule, quadratic spline rule
This final project studies Weibull distribution model in survival analysis based on type-II right censored data. Data of the length of time until the occurrence of an event observation are called survival data and statistical procedures for analysis of such data is called survival analysis. The purpose of this study is to obtain the estimate of the parameters implemented in determining the …
This final project discusses iterative methods formed by combining Newton’s method and an iterative method with a correction function that depends on the value of the function and values of the two derivative functions. Ana- lytically it is demonstrated that the proposed method is of order five. Numerical computation shows that the method is comparable with the existing methods in the sa…
Increased plastic waste has a negative impact on the environment if not further processed, Because plastic waste is nonbiodegradable One method that can be used to process plastic waste is pyrolysis method.The purpose of this study was to observe the effect of process variables (temperature and ratio of PP plastic: PS) to yield and characterization of pyrolysed oil produced. the pyrolysis proce…