Study of consumer acceptance toward shredded rendang of smoked catfish(Pangasius hypopthalmus) with using different types of coconut milk was conducted on March-June 2017. This research was aimed to know the level of consumer acceptance toward shredded rendang of smoked catfish (Pangasius hypopthalmus) with using different types of coconut milk. Experimental methode was used in this research, w…
Coast Sakera of Bintan regency of Riau Islands Province has become location implementation research in July 2016, with a goal determine the oil content and the abundance of diatoms in each station and the relationship between oil content with the abundance of diatoms. The survey method was applied in four stations, each station consists of three sampling points. Based on the result, the hinghes…
This study was conducted on May 2016 at Nongsa Beach in Batam City, Riau Islands Province. The purpose of study was to analise the potential of tourism in Nongsa Beach as a marine tourism. The method used in this study is a survey method. The result of the study show that Nongsa Beach has a high potential to serve as a national and international marine ecotourism. This was based on the aspects …
This study aimed to determine the ability of estuary to accommodate the total suspended solids that was derived from household activities, or other events and factors at Nerbit Besar River of Lubuk Gaung Village of Sungai Sembilan Sub-District of Dumai City Riau Province. The results showed that the volume of the estuary during spring tide (Vh) was bigger than the volume of the estuary at low e…
This research was take place in north Rupat island beach, Bengkalis regency Riau province on January 2016. The purpose of this research is to find out the contents of nitrate and phosphate in the water of seagrass ecosystem in north Rupat island and to find out the contents of nitrate and phosphate in the sediment of seagrass ecosystem in north Rupat island as well as to find out the difference…
TSI was a common index for characterizing a lake’s trophic state. This index involving three variables namely chlorophyll-a, Secchi disk and total phosphorus. The average values of TSI of these three parameters will be considered in determining the trophic state in lake. To understand the trophic state of the Diatas Lake, a research was conducted in February – March 2017. There were three s…
The fish mass mortality often occurred in the Maninjau Lake as the oxygen level as well as the carrying capacity of the lake may not be able to support the life of the cultured fish. A research aims to determine carrying capacity of the lake based in dissolved oxygen has been conducted on January to March 2017. There were 4 stations; 2 stations were in the inlet area (Pandan and Sigiran) and 2 …
Phosphate is an important element for determining the fertility of waters and a limiting factor for the growth of phytoplankton. A research aims to understand the vertical profile of phosphate in Diatas Lake was conducted in February - March 2017. Water samples were taken from 3 stations, namely Station 1 (inlet area), Station 2 (in the middle of the lake) and Station 3 (outlet area).The vertic…
There were several methods to understand the trophical state of waters, such as chemical, biological and combination of chemical and biological methods. The combination method, namely the TRIX method is more representative for predicting the trophical state of the water and thus it was used to analyze the trophical state of the Maninjau Lake waters. This research was conducted in Januari – Ma…
The water surface of the dam of the Fisheries and Marine Science Faculty of Riau University is almost covered by Pistia stratiotes and this condition may affect the availability of fish in that area. To understand the types of fish associated with that aquatic plant, a research has been conducted February to March 2017. Based on plant density, there were 3 sampling sites, site 1 (46.19 plants/m…
Dam and streams around the University of Riau is inhabited by many types of aquatic organism, including prawns. Scientific information of those organisms, however, is almost none. To understand the types of freshwater prawns present in that area. A research has been conducted from February to April 2017. Sampling areas were in the dam, pond and streams around the University of Riau. Freshwater …
Pangasius polyuranodon is one of freshwater fishes that inhabit the Siak and Kampar Rivers in Riau. Water qualities in those areas are different. Availabillity of food and the success of reproduction are important factors for the fish existence. To understand the stomach content and reproductive biology of this fish, a study has been conducted from October – December 2016. The fish was sample…
The peat water has low pH and it can be improved by adding bentonite and lime. The use of lime, however, produced relatively large amount of sediment. To understand the effectiveness of combined bentonite and lime in osmofilter paper package to increase the pH and reduce the sediment, a study has been conducted on May- Juni 2016. Combination of 1,7 g bentonite and 1,7 g lime were wrapped using …
A study aims to understand the condition of tofu industry waste water, the effectiveness of stabilization ponds in improving the waste water quality and the effects of discharged waste in the Tarai River, a study has been conducted on September 2016. The tofu waste was obtained from the UD. Dhika Putra tofu industry. Waste water was sampled from the stabilization ponds (3 sampling areas) and in…
This final project discusses a single premium of the whole life insurance using half increasing annuity based on Burr distribution. This calculation of premium is solved by predetermined life probability based on Burr distribution, discount factor using Dothan interest rate model, and single premium of whole life insurance using insurance money payment made at the end of the policy year. K…
This nal project discusses the solutions for a diophantine equation { A + B = C, ABC = Dn, where A, B, C, D, n are positive integers and n ≥ 3. The equations are regard as a generalization of Fermat's equation xn +yn = zn. This is a review of some parts of Cai et al. [Journal of Number Theory, 149 (2015), 33{45]. The solutions are determined by using the concept of greatest common div…
This article discusses a model economic manufacturing quantity in production process that has random variables for item breakdown and machine break down. In machine breakdown, the production has the time breakdown obeying the exponential distribution. The optimal result is obtained when the total inventory cost being in uenced by time is convex function. The procedure of model is ilustrat…
This nal project discusses some identities of Fibonacci and Lucas sequences. Binet's formula of Fibonacci and Lucas sequences are used to prove these identities. Some identities of Fibonacci and Lucas polynomials are also explained. The identities being form from these polynomials are proved by Binet's formula of Fibonacci and Lucas polynomials. This is a review of Singh et al. [Internati…
This final project discusses the use of Adomian decomposition method to solve a class of nonlinear problems which is a review of the article of Cano [ISRN Applied Mathematics 2011 (2011), 1-10]. The discussion begins by solving the initial value problems using Adomian decomposition method to find the approximate solution. The approximate solution obtained in the form of power series is com…
This final project discusses the cubic spline quadrature weights method which is a method to estimating the value of approximation of a function. This final project presents the work of Leung and Quan [Appl. International Journal of Mathematics Education in Science and Technology, 15 (1984), 305-313]. The numerical simulation shows that the cubic spline quadrature weights method has a good…