Jurnal Ilmiah Poli Rekayasa
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Modifikasi Sistem Transmisi pada Mesin Pencacah Sampah/Limbah Plastik dengan Sistem Crusher dan Silinder Pemotong Tipe Reel
Full text linkAn increasing number of plastic waste, but can be recycled into other products in the form of granules before further processing into a grain pellets and injection molding processes to produce products such as buckets, plates, bottles and others. To be processed into the required form of granules of plastic thrasher. Even so small plastic recycling industry is still constrained within a plastic enumeration process because the machine used his ability was not maximal.The purpose of this study is a modification of the transmission system thrasher plastic crusher system and cylinder-type cutter reel and technical evaluation. This study was conducted over two years, the first year the design and manufacture of machinery, the second year is the technical evaluation of the engine, improved engine performance. From the results of the study year I found some weaknesses machines namely, 1) the machine is often hampered by the transmission belt on the motor shaft with shaft reducer as drive unit crusher often slip when a large load, 2) transmission gears hipoid of the motor shaft with shaft type unit reel get a great friction and cause the sound very noisy. To improve the performance of the engine of the transmission system needs to be fixed.From the results of the design redesign the engine in the second year, namely, the installation of a connector axle of the motor shaft with shaft-type knife reel player. Axle used is commonly used in car axle Carry. Likewise, the transmission system between the motor shaft to the reducer as a successor to the rotation axis of the blade type crusher players use the chain sprocket to avoid slip on a rotating shaft. The results of performance testing crusher machine on lap 75 RPM and cylinder-type reel cutters 1450 RPM, engine capacity ± 130 kg / h on the cylinder type crusher and the reel-type cylinder engine capacity of ± 165 kg / h at an aperture sieve Ø 1,5 cm, with uniformity of grain 85%
Perancangan dan Implementasi Aplikasi Verifikasi SNMPTN di Universitas Andalas Berbasis Android dan PHP MYSQL
Full text linkVerification of entri exam as SNMPTN is an activity to confirm the data in schools which have been registered before at the University of Andalas. At the time of verification, the verification team still carries the paper to verify the data. Where as in times those are now many applications can facilitate the users. So to create verification application to facilitate the verification team to input data - verification of data and can be sent directly from the results of the verification data into the application server. This application only accessible for the verifier team, because this application an account to access it. Andalas University entri exam verification applications will be built using the Android programming language, PHP and MySql
Simulasi Numerik pada Rectangular Cylinder dekat Dinding yang mengunakan Diffuser dan tanpa Diffuser dengan Mengunakan K Model
Full text linkRectangular Cylinder with a rectangular cross section is also used as a building, the architectural features of the building, the internal flow geometry, and beam. In addition, flow around Rectangular Cylinder can produce local instability and can lead to global instability. Diffuser can work for both conditions by reducing the drag force and increase down force. Diffuser is designed to change the fluid kinetic energy into potential energy in the form of pressure. The increase in pressure that occurs in the diffuser will generate a positive pressure gradient or also called adverse pressure gradient (APG). In this case Rectangular Cylinder that use Diffuser And Without Diffuser at Re 1 x 106 obtained graphs of: (a) Drag Coefficient (Cd) (b) Lift Coefficient (Cl) and (c) Velocity contour in the area of mid span numerically using the software Fluent 6.3.26 with k ε- turbulence models that Standard are two-dimensional (2D). On the Cylinder Rectangular diffuser values obtained using 1:36 Cd and Cl -0.81 and Rectangular Cylinder without diffuser obtained value Cd Cl 0:47 and 1:53, clearly visible on the use Rectangular Cylinder diffuser turns diffuser provides greater Cd and Cl negative or increase down force. The treatment is to eliminate the other side upper corner on the front of a quarter circle with r = 0.1, this produces a different contour velocity when compared experiment this treatment capable of eliminating reattached flow on the upper side area
Model Epidemi Seir dengan Insidensi Standar
Full text linkIn this paper, it will be studied stability for a SEIR epidemic model with infectious force in latent, infected and immune period with standard incidence. From the model it will be found investigated the existence and uniqueness solution of points its equilibrium. Existence solution of points equilibrium proved by show its differential equations system of equilibrium continue, and uniqueness solution of points equilibrium proved by show its differential equation system of equilibrium differentiable continue
Pemodelan Sistem dengan Metode Neural Network Back Propagation Modeling System Using Neural Network Backpropagation
Full text linkA system can be modeled using mathematical formulation analysis method. Analysis of the system starts from the value of inputs, processes, noise, and output processes. then sought mathematical approach. This method is very complex, especially for some of the processes that have a higher order. In this article the author tries to discuss a method to perform modeling on a system by using Back Propagation Neural Network method.In the neural network method we require the initial data for network training process. Network training process is intended to gain weight. The weight is then identified with a model system. This paper has demonstrated that the modeling system can be done by the method of back propagation neural network
Pelabelan 0-Anti Ajaib dan 2-Anti Ajaib untuk Graf Tangga L
No full textFor a connected graph and a subset of . For a vertex the distance betwen and is . For an ordered k-partition of , the representation of with respect to is The k-partition is a resolving partition if are distinct for every The minimum k for which there is a resolving partition of is the partition dimension of In this paper will shown resolving partition of connected graph order where is a bipartite graph. Then it is shown dimension partition of bipartite graph, are pd(Kst)=n-
Kestabilan Model Epidemi Seir dengan Matriks Hurwitz
Full text linkIn this paper, it will be studied local stability of equilibrium points of a SEIR epidemic model with infectious force in latent, infected and immune period. From the model it will be found investigated the existence and its stability of points its equilibrium by Hurwitz matrices. The local stability of equilibrium points is depending on the value of the basic reproduction number If the disease free equilibrium is local asymptotically stable
Perancangan Sistem Informasi Open Data Pada Industri Kecil dan Menengah Kota Padang Berbasis Web
Full text linkPadang society known as people who have the spirit of entrepreneurship, it is marked by the increasing number of small and medium industries in the city of Padang. Limitations of this information gives the impression of small and medium industries that runs itself. This article will produce a product web-based information system that is open data is the latest in the field of information technology. This information system will as a place for people to obtain information data in the form of products, the location of the small and medium industrial enterprises in the city of Padang. This information system also can be used as a medium for the industry small and medium enterprises in the city of Padang to obtain informatio
Computare Vision Berbasis Camera dan Mini PC untuk Identifikasi Kecacatan Penutup Kemasan Minuman Kaleng
Full text linkVisual inspection becomes an important role when determining the quality of the conditions of production. Manual visual inspection carried out by relying on human senses, especially the eyes, the weakness is perspective and human's perspective may be different from each other, the quality result can be different. Utilization of the camera as a sensor and computer system as a major component of decision-making is the latest technology that is used as an automatic visual inspection replace human tasks. This research aims to make a visual inspection system that utilizes a web camera and mini PC (personal mini computare) Raspberry PI to identify disability packaging beverage cans. The system that is made has been tested to identify defects tin side of the inner surface of the cover packaging of canned drinks without color or silver color. The result is, the system is able to distinguish defective cans and the cans that are not defective with an accuracy of 66, 67%. We hope this research can be developed at a later stage so that automatic a visual inspection can be realized
Pengaruh Tegangan Pompa Bahan Bakar Terhadap Kandungan Emisi Gas Buang
Full text linkCombustion emissions from millions of exhaust coming out every day would cause problems because the impact on the air quality and the problems of chronic diseases when inhaled by humans. This study wants to reveal the influence of variations in electric voltage to the fuel pump exhaust emissions. The study was conducted using an experimental method, using a form of Post-test Only Control Design. The object being tested is a Toyota Avanza 1.3 GM / T. The voltage should be 12 V, the research varying the voltage to the level of 11 V, 10 V and 9 V. The results obtained, when the voltage is 12 V the average emissions of CO and HC 95.5ppm 0.187%. At a voltage of 11 V emissions down to 0.125% CO and HC 62.5ppm. However, when the voltage is 10V and 9V increased emissions. At 10 V variation 0.245% CO and HC 110.8ppm. At 9 V variation 0.303% CO and HC 139.2ppm