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3rd Annual Applied Science and engineering Conference, AASEC 2018

作者： Fadhly, N. Matondang, R. Department of Civil Engineering Engineering Faculty Syiah Kuala University Darussalam Banda Aceh Indonesia Doctoral Program in Regional Planning University of North Sumatra Indonesia

The occurrence of spatial and road network changes, increased traffic volume approaching road capacity, causing congestion due to urban sprawl phenomena as well as lack of public facilities and social facilities. From this background problem considered to be solved by a concept that is Transit Oriented Development (TOD), concept of transportation development in co-operation with spatial. The TOD concept can eliminate urban sprawl, which transforms urban sprawl into a compact city area. Pull model are obtained from the results of the analysis is, Oi = -37,126 + 58,723 X9 + 17,968X2, where road performance, land use, the coefficient indicates the number of additional trip generation. Trips pull obtained by model Dd = -20,351 + 30,903X2 where only one significant variable causing attraction of land use that is dominant. With concept of TOD, the model obtained is Oi = 32.180 + 0.002X7-7.017X3 where travel and distance travel costs indicate the number of additional trips generation, the generation will decrease over the base year. Objects obtained with the model Dd = 48.474-0.671X11 + 0, 003X7-9,299X3, meaning travel attraction in the absence of population density, travel expenses, and travel distance, then travel appeal that occurs on 48 journeys influenced by variable population density and distance travel will decrease, it can be interpreted this independent variables can influence the drag on the concept of Banda Aceh City and TOD can be applied in the city of Banda Aceh. © Published under licence by IOP Publishing Ltd.

关键词： Land use

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Qualitative comparative analysis (QCA): Multi-variables and small samples research approach (case study: Indonesia’s Megaprojects)

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AIP Conference Proceedings 2020年第1期2217卷

作者： Retno Wulan Damayanti Budi Hartono Andi Rahadiyan Wijaya 1Doctoral Study Program of Industrial Engineering Department of Mechanical and Industrial Engineering Gadjah Mada University Yogyakarta Indonesia 2Industrial Engineering Study Program Sebelas Maret University Surakarta Indonesia

This paper aims to provide an overview of what a Qualitative Comparative Analysis (QCA) method is, its differences with the classical methods, the principles, and the QCA types. Literature studies and Indonesia megaproject case study is used to explain the concept of the QCA method. A comprehensive discussion of this paper produces a concise description of the QCA method that has the potential to be used to study multivariable research with small sample size. This study also succeeded in formulating a framework that can be used as a guide for researchers in determining when to use the QCA method.

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Analysis of Crude Palm Oil Supply Chain using Food Supply Chain Network (FSCN): A Case Study

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IOP Conference Series: Materials Science and engineering 2020年第1期1003卷

作者： Nazaruddin Matondang Juliza Hidayati Buchari Erik Permana Arifin Jeffrey Panama Industrial Engineering Master and Doctoral Study Program Faculty of Engineering Universitas Sumatera Utara Department of Industrial Engineering Faculty of Engineering Universitas Sumatera Utara

Palm oil industry is one of the leading industrial sectors in Indonesia. In order to fulfill CPO demand as well as increasing of CPO sales, a research to analyse the supply chain flow of CPO was conducted. This research was conducted in ABC company, which is a privately owned business entity engaged in oil palm plantations located in South Tapanuli Regency, Indonesia. Analysis of supply chain had been done by using Food Supply Chain Network (FSCN) to define the integration of key business processes provided by original suppliers that provide products, services, and information from end users to customers and other stakeholders. Result of this research clearly defined the supply chain process with a clear flow of material, information and finance. The key process of CPO supply chain is the distribution of raw materials of CPO, namely fresh fruit bunches (FFB) which were collected from privately owned oil palm plantations and nearby community gardens, then processed in mills, deliver to storage tank, and export to customers. Analysis of this case study provided a clear description of CPO supply chain and may let further researchers to easily examine the potential risks at each stages and actors of CPO supply chain.

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Sizing of a sustainable condensation system for the production of sweet water through the use of photovoltaic panels in La Mesa de los Santos, Santander, Colombia

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IOP Conference Series: Materials Science and engineering 2021年第1期1154卷

作者： B E Tarazona-Romero A-J Rodriguez Nieves C L Sandoval-Rodriguez J G Ascanio-Villabona M-A Duran-Sarmiento A-D Rincon-Quintero Automation and Control Energy Systems Research Group (GISEAC) Faculty of Natural Sciences and Engineering Electromechanical engineering Unidades Tecnologicas de Santander (UTS) Student Street No 9-82 680005 Bucaramanga Colombia Energy in Building research group (ENEDI) Doctoral Program in Energy Efficiency and Sustainability in Engineering and Architecture Department of Machines and Thermal Engines University of the Basque Country (UPV / EHU) Engineer Torres Quevedo Square 1 48013 Bilbao BI Spain Doctoral Program in Electronic and Communications Department of Communications Engineering University of the Basque Country UPV/EHU 48013 Bilbao Spain

The objective of the project is to carry out the dimensioning of a photovoltaic system that allows its integration with a condensation system for the production of fresh water in isolated areas (Rural), in such a way that a sustainable condensation application capable of producing water is generated. sweet to supply small groups of inhabitants in areas where the basic supply of liquid is deficient. The study area is the Department of Santander, Colombia, specifically in the Municipality of los Santos and the area known as Mesa de los Santos, in which difficult geographical conditions are presented such as: altitude of 1650 meters above sea level and deficiency in aquifers. The methodological development proposes the analysis of the meteorological conditions of the area, the identification, selection and dimensioning of the condensing system and the photovoltaic system through the amp-hour method and the software system advisor model (SAM). Additionally, a CAD model is developed to obtain the complete schematization of the model and carry out a simulation process to analyze the behavior of the integration of the aforementioned systems. Finally, a techno-economic analysis of the proposed system is carried out.

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Implementation of a prototype water electrolysis system as an alternative to produce hydrogen

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IOP Conference Series: Materials Science and engineering 2021年第1期1154卷

作者： B E Tarazona-Romero C L Sandoval-Rodriguez J G Ascanio-Villabona A Quintero-Ruiz R E Páez-Castro O A Acosta-Cárdenas Automation and Control Energy Systems Research Group (GISEAC) Faculty of Natural Sciences and Engineering Electromechanical engineering Unidades Tecnologicas de Santander (UTS) Student Street No 9-82 680005 Bucaramanga Colombia Energy in Building research group (ENEDI) Doctoral Program in Energy Efficiency and Sustainability in Engineering and Architecture Department of Machines and Thermal Engines University of the Basque Country (UPV / EHU) Engineer Torres Quevedo Square 1 48013 Bilbao BI Spain Doctoral Program in Electronic and Communications Department of Communications Engineering University of the Basque Country UPV/EHU 48013 Bilbao Spain

The objective of the development of the prototype or scale model of production of hydrogen and oxygen through the electrolysis process of water is to generate an alternative with a sustainable approach, which proposes the supply or source of energy initially with a direct current power source. replaceable in the future by a photovoltaic solar system. For the development of the prototype, it began with the academic compilation of information, then the model was made in CAD, followed by the need to integrate an electronic control system and a mechanical system to obtain the final model, materials were selected and used premises for the development of the two systems, the electronic and physical schematization was carried out, chaired by the assembly and field experimentation. It is important to highlight that the constructed scale model generates hydrogen and oxygen with a low current consumption and a constant voltage, the maximum point of gas generation is the maximum point of energy consumption and its relationship is almost linear.

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Model of rainfall erosion index for predicting the potential erosion rate by using a rainfall simulator

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IOP Conference Series: Earth and Environmental Science 2020年第1期437卷

作者： Erni Yulianti Lily Montarcih Limantara Ery Suhartanto Very Dermawan Doctoral Program Department of Civil Engineering Brawijaya University Water Resources Engineering Department Faculty of Engineering Universitas Brawijaya Malang 65145 Indonesia

The intent of this research is to investigate the rainfall erosion index that has the highest correlation to the surface runoff volume and the amount of soil erosion. In addition, the aim of this research is to determine the effective rainfall erosion index to predict soil erosion based on observations. This research was conducted in a hydrology laboratory by using a rainfall simulator. The three methods that were used for analysing rainfall erosion were the formulas of EI30 by Bols, Utomo, and Lenvain. The result is expected to become a consideration in selecting the model of rainfall erosion index due to the rainfall factor as the input of soil erosion prediction. This research provides a temporary hypothesis for obtaining the value of the rain erosivity index with a different value from previous studies with EI30, which leads to the latest model for estimating and predicting from the Bols equation. Based on this research, the rain erosivity index was obtained with a predicting value and final equation of EI30 = 5.128 x (Rain)1.26 x (Days)0.47 x (Maxp)0.53 x (High)0.61 with the explained value from research analysis being EI30 = 5.128 x (50.002)1.35 x (23)0.47 x (622)0.53 x (12)0.61. Analysis was then performed with trial and error, and the conclusion of this research is a high rain erosivity index.

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Text data labeling process for semi-supervised learning modeling

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AIP Conference Proceedings 2024年第1期3165卷

作者： Ahmad Abdul Chamid Widowati Widowati Retno Kusumaningrum Doctoral Program in Information Systems School of Postgraduate Studies Diponegoro University Jl. Prof Sudarto S.H. Tembalang Semarang 50275 Indonesia Department of Informatics Engineering Faculty of Engineering Muria Kudus University Jl. Lingkar Utara UMK Gondangmanis Kudus 59327 Indonesia Department of Mathematics Faculty of Science and Mathematics Diponegoro University Jl. Prof Sudarto S.H. Tembalang Semarang 50275 Indonesia Department of Informatics Faculty of Science and Mathematics Diponegoro University Jl. Prof Sudarto S.H. Tembalang Semarang 50275 Indonesia

To develop a semi-supervised learning model, it is necessary to have a little labeled data and a lot of unlabeled data. The data labeling process requires great effort and must involve experts. In the process of labeling text data requires a linguist to do the labeling. In this study using text data in the form of marketplace user reviews, in general the data is still dirty and data preprocessing needs to be done. The data preprocessing techniques applied are normalization, tokenization, stopword removal, and stemming. After the data goes through the preprocessing stage, labeling is carried out by involving more than one linguist. The results of the labeling that have been carried out by linguists will be carried out a consistency test process by applying the Cohen Kappa method. The data that has been labeled by 2 linguists is 820 data, after the consistency test is obtained the delivery aspect with a kappa value of 1, the service aspect with a kappa value of 0.960, the quality aspect with a kappa value of 0.981, the size aspect with a kappa 0.997, the color aspect with a kappa value of 1. Based on the results of the consistency test from the 2 experts for the 5 aspects, consistent results were obtained. So that the data that has been labeled can be used as training data to carry out the process of developing a semi-supervised learning model. A series of labeling processes up to consistency testing will be the main basis for developing a semi-supervised learning model.

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Deep Multi-Scale Residual Learning-based Blocking Artifacts Reduction for Compressed Images

Deep Multi-Scale Residual Learning-based Blocking Artifacts ...

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IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS)

作者： Min-Hui Lin Chia-Hung Yeh Chu-Han Lin Chih-Hsiang Huang Li-Wei Kang Department of Electrical Engineering National Sun Yat-sen University Kaohsiung Taiwan Graduate School of Engineering Science and Technology-Doctoral Program National Yunlin University of Science and Technology Yunlin Taiwan

ISBN: (纸本)9781538678855

Blocking artifact, characterized by visually noticeable changes in pixel values along block boundaries, is a general problem in block-based image/video compression systems. Various post-processing techniques have been proposed to reduce blocking artifacts, but most of them usually introduce excessive blurring or ringing effects. This paper presents a deep learning-based compression artifacts reduction (or deblocking) framework relying on multi-scale residual learning. Recent popular approaches usually train deep models using a per-pixel loss function with explicit image priors for directly producing deblocked images. Instead, we formulate the problem as learning the residuals (or the artifacts) between original and the corresponding compressed images. In our deep model, each input image is down-scaled first with blocking artifacts naturally reduced. Then, the learned SR (super-resolution) convolutional neural network (CNN) will be used to up-sample the down-scaled version. Finally, the up-scaled version (with less artifacts) and the original input are fed into the learned artifact prediction CNN to obtain the estimated blocking artifacts. As a result, the blocking artifacts can be successfully removed by subtracting the predicted artifacts from the input image while preserving most original visual details.

关键词： Image coding Transform coding Image restoration Discrete cosine transforms Artificial intelligence Image resolution Convolutional neural networks

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Design of eco-friendly fixed bed dryer based on a combination of solar collector and photovoltaic module

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Nature Environment and Pollution Technology 2019年第1期18卷 21-30页

作者： Mardiyani, Siti Asmaniyah Sumarlan, Sumardi Hadi Argo, Bambang Dwi Leksono, Amin Setyo Doctoral Program of Environmental Studies Brawijaya University Jl. Veteran Malang6514 Indonesia Department of Agrotechnology Faculty of Agriculture University of Islam Malang Jl. MT. Haryono 193 Malang65144 Indonesia Department of Agricultural Engineering Faculty of Agricultural Technology Brawijaya University Jl. Veteran Malang65145 Indonesia Department of Biology Faculty of Mathematic and Natural Science Brawijaya University Jl. Veteran Malang65145 Indonesia

A study to develop a convective eco-friendly fixed-bed solar dryer is presented in this article. The aim of this study was to design an efficient eco-friendly fixed bed dryer using solar collector and solar photovoltaic panel with a forced convective system. The design consists of a V-corrugated solar collector, a centrifugal fan, a solar photovoltaic module (100 WP) and a drying unit in the mini-silo model with five layers. The dryer performance test was conducted in September, October, and November 2017 in Malang, East Java, Indonesia. The observation showed that the temperature of the solar collector and the first layer of the drying unit could reach 40-70°C on a sunny day and 30-50°C in cloudy/rainy conditions. The efficiency of the daily collector varied from 20% to 50%. Based on a multiple regression analysis, it showed that some variables (solar intensity, voltage of photovoltaic panel, air speed around the blower, air collector velocity, collector relative humidity, ambient temperature and relative humidity temperature) significantly influenced the collector temperature. The result of drying simulation using red pepper showed that the design has a potential to be used as an eco-friendly fixed bed convective drying. Based on the empirical model, the drying time needed to reach 12% of moisture content (wet basis), respectively, was 5-6 days for the first tray, 8-9 days for the second tray and 9-10 days for the third tray in rainy season. © 2019 Technoscience Publications. All Rights Reserved.

关键词： Air

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The Population Growth and Carrying Capacity in Semarang City 2

The Population Growth and Carrying Capacity in Semarang City

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2nd International Conference on Energy, Environmental and Information System, ICENIS 2017

作者： Hariyanto Hadi, Sudharto P. Buchori, Imam Doctoral Program at Environment Science Post Graduate School Diponegoro University Indonesia Department of Urban Plannung Engineering Faculty Diponegoro University Indonesia

Population growth and development of city activities take some lands to carry them. As a result, land use competition happens among persons, society or sector. Land necessity for settlement, industry, or sector has taken over farm land, therefore farm land has been converted intensively and massively. Chronologically, population growth will cause land necessity increase. Unproductive land, especially farm land will be converted. Furthermore, farm land conversion will cause carrying capacity change. Carrying capacity has certain bio capacity. With the population growth, it will increase resource consumption;on the other side, farm land conversion will decrease carrying capacity. The objective of the study is to know about the influence of population growth towards carrying capacity (bio capacity) in Semarang city. Land consumption per capita is indeed influenced by city population, the higher the population is, the lower the land consumption per capita. With the population growth, it will influence carrying capacity. Carrying capacity here is the ratio of area to population. Analytical descriptive method is applied in the study with all sub-districts in Semarang city as the analysis unit. Population here is sub-district area and population per sub-district in Semarang city. Population growth data period is from 2000 until 2015. Main variables of the study are area per sub-district, population, population growth, carrying capacity. Result of the study shows significant influence of carrying capacity decrease, especially some outskirts in Semarang city. This condition happens because the outskirts in Semarang city tend to have dense population growth. Range of carrying capacity in Semarang city is from 0,007 to 0,117 of 0 to 1. Almost all sub-districts in Semarang city show miserable condition, except Mijen and Tugu. The conclusion of the study is that population will decrease carrying capacity. Therefore, the government should control population growth by paying atten

关键词： Population statistics

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