188 research outputs found
Perbandingan Kapasitas Kolom Beton Bertulang Berdasarkan Variasi Bentuk Sengkang dengan Analisis Finite Element Method
Columns are one of the structural elements that greatly influence the behaviour of the structure. Columns are capable of holding axial compression loads and transmitting them to the structural elements below. Column capacity can be increased by the confinement of lateral reinforcement/stirrup. The stirrups function to maintain the compressive strength capacity of the concrete column before and after spalling. Advances in software technology have had a very significant impact on the development of structural element analysis methods, including software based on the Finite Element Method (FEM), Abaqus/CAE Student Edition. It can also simplify several laboratory research of Civil Engineering into a simulation. However, in simulation practice, parameters in the form of material data are needed as input. To get the same behaviour between the test object and the simulation, convergent parameters are needed. The parameters to be analyzed are CDP (Concrete Damage Plasticity) plastic parameters. While the simulation for loading, shape of the test object, and placement refers to the results of previous studies. The reinforced concrete column test model used consists of 5 (five) different variations of stirrups. The results of the simulation show that reinforced concrete columns with stirrups provide support in the form of shear force capacity that can maintain the value of the axial compressive strength capacity. From the five existing test models, it was obtained that the increase in the value of the axial compressive strength capacity of the column due to the variation of stirrups for column B, column C, column D, and column E to column A (without stirrups) were 115%, 120%, 121%, and 119% consecutively. The output values from the analysis include the diagrams of axial force and displacement, column interaction diagrams, and material stress-strain diagram
Penerapan Activity Based Costing System Dalam Perhitungan Profitabilitas Produk Pada Ud. Niaga Bakti
The Charge imposition of factory overhead based on traditional systems often cause distorted costs. One of efforts to overcome these distortions fees is with charging the costs factory overhead by the activity based costing. The use of activity based costing can also help companies that produce many products in determining the level of profitability. Profitability indicates whether an enterprise has good prospects in the future for the company's survival. This research is a quantitative descriptive research conducted at UD NIAGA BAKTI engaged in the processing of tuna fish PETIS in Pamekasan located in the village of Konang, Subdistrict of Galis, Regency of Pamekasan. The type of data used in this research is quantitative data obtained by direct observation and Interview. This techniques of research analysis calculates and compares the products profitability of PETIS by using traditional cost systems and costing system based activity. The results of this research indicates that there are differences in the principal cost of production and profitability UD NIAGA BAKTI by using activity based costing compared Traditional Cost Systems
Investigation of Electron Contamination on Flattened and Unflattened Varian Clinac iX 6X and 15X Photon Beam Based on Monte Carlo Simulation
The aim of this study was to characterize electron contamination of a flattened (FF) and an unflattened (FFF) Varian Clinac iX 6X and 15X photon beams using Monte Carlo (MC) simulation. EGSnrc MC technique was used to model the flattened and unflattened head and simulate dose distribution of 6X and 15X of FF and FFF photon beam in water phantom. The materials and geometrical data of FF linac were provided by Tan Tock Seng Hospital (TTSH) Singapore. The FFF linac was modeled by removing the flattening filter component in the FF linac. Phase space files were scored after flattening filter and in the phantom surface. The phsp files were analyzed to characterize the particles produced by the linac head using BEAMDP. The contaminants contribute around 1 % and 2 % in the phsp1 for flattened and unflattened beams, respectively. The photons are scattered in small-angle in the range of 0 β 4o. The contaminant electron contributes up to one hundredth compared to the photons. The increase of field area affects the increase in contaminants and penumbra width due to the increasing number of particle scattered out of the field area. The unflattened beam affects the increase in the number of electron contamination and surface dose. The penumbra width of the flattened beams was smaller than the unflattened beams for the same field size and energy
Mitigating Silent Data Corruptions In Integer Matrix Products: Toward Reliable Multimedia Computing On Unreliable Hardware
The generic matrix multiply (GEMM) routine comprises the compute and memory-intensive part of many information retrieval, machine learning and object recognition systems that process integer inputs. Therefore, it is of paramount importance to ensure that integer GEMM computations remain robust to silent data corruptions (SDCs), which stem from accidental voltage or frequency overscaling, or other hardware non-idealities. In this paper, we introduce a new method for SDC mitigation based on the concept of numerical packing. The key difference between our approach and all existing methods is the production of redundant results within the numerical representation of the outputs, rather than as a separate set of checksums. Importantly, unlike well-known algorithm-based fault tolerance (ABFT) approaches for GEMM, the proposed approach can reliably detect the locations of the vast majority of all possible SDCs in the results of GEMM computations. An experimental investigation of voltage-scaled integer GEMM computations for visual descriptor matching within state-of-the art image and video retrieval algorithms running on an Intel i7- 4578U 3GHz processor shows that SDC mitigation based on numerical packing leads to comparable or lower execution and energy-consumption overhead in comparison to all other alternatives
Isolasi Senyawa Flavonoid Ekstrak Biji Pinang Merah (Areca Vestiaria Giseke) Dan Uji Sitotoksiknya Melalui Uji Brine Shirimp Lethality Test (BSLT): Isolation of Flavonoid Compounds of Red Pinang\u27s Seed Extract (Areca Vestiaria Giseke) and Cytotoxic Test by Brine Shirimp Lethality Test (BSLT)
Cytotoxic test is one method to predict the development of compounds that are toxic to the cell that is an absolute requirement for anticancer drugs. The aim of this study is to isolate flavonoids and determine LC50 value of the activity of the Red Pinang seed extract (Areca vestiaria Giseke). Extracts prepared by maceration method using ethanol 96%. Isolation is done through a range of methods includes partitioning using n-hexane, a preliminary test using the color reagent and KLT, isolation by preparative thin layer chromatography, thin layer chromatography multi eluent, UV-Vis spectrophotometer analysis and cytotoxic test isolates. The results showed that isolates flavonoid seed extract of Red Pinang (Areca vestiaria Giseke) has the medium potential of being a cytotoxic agent with LC50 values of 583.445 ppm
Mutu Minyak Jelantah dengan Adsorben Biji Salak (Salacca Zalacca (Gaertn.)Voss) Menggunakan Parameter Bilangan Peroksida dan Asam Lemak Bebas: Quality Of Used Cooking Oil With Snake Fruit (Salacca Zalacca (Gaertn.) Voss) Seed Adsorbent Using Parameters Of Peroxide Value And Free Fatty Acids
Quality of used cooking oil with snake fruit (Salacca zalacca (Gaertn.) Voss) seed adsorbent has been conducted. This study aims to determine the ability of snake fruit seed in reducing peroxide value and free fatty acids in used cooking oil which can improve the quality and extend usage lifespan of the used cooking oil. The oil sampled in this study was packaged cooking oil which is usually used to fry food untill 7th frying. The oil was then neutralized using snake fruit activated charcoal. The test refers to the Indonesian National Standard (SNI) 7709: 2012 as the quality requirements of cooking oil. The results showed that snake fruit activated charcoal can reduce peroxide value as much as 56.18% and free fatty acid 76.04% in the used cooking oil
Determining the Neuron Weights of Fuzzy Neural Networks Using Multi-Populations Particle Swarm Optimization for Rainfall Forecasting
Rainfall trends forecasting is essential for several fields, such as airline and ship management, flood control and agriculture and it can be solved by Fuzzy Neural Networks (FNN) approach. However, one of the challenges in implementing the FNN algorithm is to determine the neuron weights. In comparison to Gradient Descent approach, Particle Swarm Optimization (PSO) has been the common approach used to determine neuron weights that result in a more accurate output. However, one of the weaknesses of PSO approach is it tends to convergence after iteration. To overcome this weakness, this study uses a multi-population mechanism to improve the result of PSO approach. The result shows that FNN optimized by PSO with the multi-population mechanism provided a better result than FNN optimized by standard PSO approach and by Gradient Descent approach. Besides, FNN optimized by PSO with multi-population mechanism is capable to produce a better result than the standard Multi-layer Neural Networks optimized by PSO
Speech Acts Analysis of the Main Character in Shrek Movie Script Analisis (Tindak Tutur Pada Tokoh Utama Di Dalam Naskah Film Shrek)
In the study of language, what people do by saying something is called speech acts. Speech acts is not only found in everyday life but also in the film. This research concerns with speech acts produced by the main character in Shrek movie script. The aims of this research are to describe the types of speech acts and to analyze the most dominant speech acts produced by the main character. Besides, the aim of this research is also to know and describe the purposes of Shrek as the main character to use speech acts. The objects of this research are texts in the form of movie script. Austin\u27s (1962) theory of speech acts is applied in this research as the major theory. The types of research in this study are qualitative and quantitative research. Qualitative research is applied to analyze the data in the form of the text. Quantitative research is used to count the member of speech acts used by Shrek to conclude which types of speech acts is dominantly used. There are 50 utterances to be analyzed. The result of this research shows that the four types of speech acts produced by Shrek are directives, representatives, expressives, and commissives. This study shows that the dominant speech acts used is directives. It reaches 44%. It indicates that Shrek uses directives because he wants to make the hearer do something. Besides, Shrek also wants to be admitted by the people that he is actually a kind ogre
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