检索结果-内蒙古大学图书馆

Updating conceptual model of Ciwidey-Patuha geothermal using dynamic numerical model

IOP Conference Series: Earth and Environmental Science 2019年第1期254卷

作者： Ali Ashat Heru Berian Pratama Ryuichi Itoi Department of Earth Resources Engineering Faculty of Engineering Kyushu Univ. Fukuoka 819-0395 Japan. Geothermal Engineering Study Program Institut Teknologi Bandung Indonesia Jl. Ganesha No.10 Bandung West Java Indonesia.

A study of Ciwidey-Patuha geothermal field using TOUGH2 reservoir simulation has been conducted. The purpose of this study is to verify and update previous Ciwidey-Patuha conceptual models. The numerical model of vapour-dominated reservoir with steam zone underlying liquid reservoir is constructed based on detail reservoir characterization from geoscience and well data. The reservoir boundary is defined based on TCH (temperature core hole) wells. The distribution of porosity, pressure, temperature and steam saturation are assessed. The model is validated by matching downhole data on pressure and temperature during exploration stage. Then for exploitation stage, the model is validated using reservoir pressure.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An overview of the down-scaling values of physical and social vulnerability parameters for tsunami disaster at the city level - a case study of Banda Aceh

引用

IOP Conference Series. Earth and Environmental Science 2019年第1期273卷 012030-012030页

作者： Sugiarti, A S Meilianda, E Fatimah, E Graduate Program of Disasters Science Syiah Kuala University Banda Aceh 23111 Tsunami and Disaster Mitigation Research Center (TDMRC )Syiah Kuala University Banda Aceh 23233 Indonesia Civil Engineering Department Faculty of Engineering Syiah Kuala University Banda Aceh 23111 Indonesia Civil Engineering Department Faculty of Engineering Syiah Kuala University Banda Aceh 23111 Indonesia

The Indian Ocean earthquake and tsunami occurred on December 26, 2004, has been one of the deadliest disasters in modern history. Banda Aceh City is one of the severely affected cities by the disaster. Many of the casualties were due to lack of knowledge in the community about the disaster and preparedness in facing the disaster. Now, after more than 10 years since the deadly disaster, the Indonesian government has created disaster risk maps for the provincial level and utilizing some of the provincial level parameters to create a district-or city-level risk maps. The purpose of this study was to analyze the dynamics of physical and social vulnerabilities at the district level over the last 10 years and to evaluate the sensitivity of the disaster vulnerability values by down-scaling the parameter values to the district or city level. This study is using Geographic Information System (GIS), which spatial data are encompassing the infrastructure, housings and the growth of population at risk up to the year 2017. The results reveal the remarkable distribution of risk levels at each investigated village. The physical vulnerability is valued moderately in Banda Aceh city about 54% whereby Gampong Laksana at Kuta Alam sub-district are among the highest vulnerability areas (0.933). As for the social vulnerability is valued high in Banda Aceh city, the highest vulnerable areas are located in Punge Ujong at Meuraxa sub-district (0.833). Overall, the vulnerability parameter value for a tsunami disaster in Banda Aceh city remains high, particularly at those villages located very close to the sea. More mitigation effort should, therefore, be reinforced at those highly risky coastal areas.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Traceability implementation based on RFID at agro-industry: A review

引用

IOP Conference Series: Earth and Environmental Science 2019年第1期230卷

作者： D K Hadi P B Santoso Sucipto Department of Agro-industrial Technology Faculty of Agricultural Technology Universitas Brawijaya Malang Indonesia Study Program of Industrial Engineering Faculty of Engineering Universitas Brawijaya Malang Indonesia Halal-Qualified Industry Development (Hal-Q ID) Universitas Brawijaya Malang Indonesia

Information system technology in the agroindustries sector has been developed. One of these is system of traceability based on Radio Frequency Identification (RFID). Before RFID developed identification information of agro-products using a barcode system. Currently RFID implementation in the agro-industry sector to identify product information safety quality tracking and control of the environment is still very limited. In fact RFID implementation petrified decision makers to make a quick decision to directly monitor the movement of agro products through the data or interface with a computer program. This review discusses the development of RFID system in agro-industry. The implementation of RFID for product safety and quality. To implement RFID technology for tracking. The ability of RFID sensor to control the environment around the product. Testing the accuracy of RFID system in the agro-industry. Output application of RFID in the agro-industry is the identification data and a better selection of products to meet the standards and minimize elimination and return of products in global trade.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Assessing Seismic Performance of Moment Resisting Frame and Frame-shear Wall System Using Seismic Fragility Curve

引用

Procedia engineering 2017年 171卷 1069-1076页

作者： Linda Astriana Senot Sangadji Edy Purwanto S.A. Kristiawan Civil Engineering Department Faculty of Engineering Universitas Sebelas Maret Surakarta Indonesia SMARTQuake research group (Center of study on Earthquake Engineering) Civil Engineering Department Faculty of Engineering Universitas Sebelas Maret Surakarta Indonesia

Explosive population and economic development in the city has forced engineer to design and build more vertical buildings. In order to be resilient in earthquake prone region, these tall buildings have to achieve a specific level of performance under earthquake loading. A comprehensive methodology for assessing the seismic performance is required which can be attained by developing structural fragility function of the structure. Fragility curves is a probabilistic function relating damage level (engineering demand parameter) with intensity measure, i.e. spectral acceleration. This paper investigates the seismic performance of moment resisting frame as compared to frame-wall system of structures. The structural response of fully deterministic structural models was, then, analyzed employing nonlinear pushover analysis yielding capacity spectrums. For each capacity spectrum in every building system, the damage states were defined, whereas average inter-story drift values for each damage state were converted into corresponding amount of spectral acceleration leading to the development of fragility curves. The paper is concluded by carrying out evaluation of the damage state based on HAZUS-MH MR5 and ATC-40.

关键词： Seismic Performance Fragility Curve Nonlinear Pushover Analysis

来源：评论

学校读者我要写书评

暂无评论

Modelling 2D water table and soil moisture distribution in a field installed with sub surface drainage

引用

IOP Conference Series: Earth and Environmental Science 2021年第1期622卷

作者： S K Saptomo C Arif W B Suwarno Rudiyanto M Askari Hiroshi Matsuda Koremasa Tamura Youichi Inoue B I Setiawan Department of Civil and Environmental Engineering IPB University Bogor Indonesia 16680 Department of Agronomy and Horticulture IPB University Bogor Indonesia 16680 Program of Crop Science Faculty of Fisheries and Food Science Universiti Malaysia Terengganu Malaysia 21300 Tanah Makmur Berhad (TMB) Ladang Tanah Makmur Lembah Klau Peti Surat 23 Raub Pahang Malaysia 25200 Yamaguchi University Ube Yamaguchi Japan 755-8611 Kyowa Kensetsu Kogyo Co. Ltd Hagi Yamaguchi Japan 758-0061

The present study is part of the development of an environment-friendly water management system based on sub surface drainage technology. It is aimed at creating a multipurpose farmland with expectation of increase in both benefits and productivity. Sub-surface drainage pipes which are installed inside mole-drain, functions as water channel that flows water into the drainage channel. Simulation was run using a 2D numerical soil water flow model based on Richard's equation. It integrates varying soil textures with aim of figuring the optimum setting of sub-drains in response to soil textures. The depth of sub-drain was established at 40cm beneath the surface for all conditions as it is the current installation available in Indonesia. Our simulation shows the variation of soil moisture and pressure over distance, time and different textures under specified spacing of sub-surface installation.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Preparation Of Superhydrophobic Zinc Oxide Nanorods Coating On Stainless Steel Via Chemical Bath Deposition

引用

IOP Conference Series: Materials Science and engineering 2019年第1期547卷

作者： Ahmad Nuruddin Brian Yuliarto Santi Kurniasih Henry Setiyanto Aditianto Ramelan Engineering Physics Research Group Faculty of Industrial Technology Institut Teknologi Bandung Bandung 40132 Indonesia Materials Engineering Study Program Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung Jalan Ganesha 10 Bandung 40132 Indonesia Analytical Chemistry Research Group Faculty of Mathematics and Sciences Institut Teknologi Bandung Bandung 40132 Indonesia

The stearic acid modified zinc oxide nanorod surface was coated with a stainless steel substrate to improve the contact angle and the sliding angle. Facilitated through ZnO seeding on the substrate, the ZnO nanorod was deposited via chemical bath deposition at different precursor concentrations. The surface hydrophobicity was modified by varying concentrations of stearic acid at and submmersion time. The contact angle was investigated in relation to the surface microstructure and modification. Results indicate that the density of ZnO nanorods on the substrate surface and stearic acid coverage are prerequisites for improving surface hydrophobicity. Superhydrophobic properties with a contact angle of 162° was obtained for ZnO deposited with 35 mM zinc nitrate and submerged in 8 mM stearic acid for 36 h, which allowed 5 μL water droplets to slide at 3.8°.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Sea level rise impact on mangrove growth and development in Coral Triangle Ecoregion Southeast, Indonesia

引用

IOP Conference Series: Materials Science and engineering 2020年第1期797卷

作者： Kangkuso Analuddin Andi Septiana Jamili Idin Sahidin Usman Rianse Sahadev Sharma Kazuo Nadaoka Eka Diaz Anjani Department of Biotechnology Faculty of Mathematics and Natural Sciences Universitas Haluoleo 93232 Kendari Sulawesi Tenggara INDONESIA Study Program of Biology Faculty of Mathematics and Natural Sciences Universitas Haluoleo 93232 Kendari Sulawesi Tenggara INDONESIA Faculty of Pharmacy Universitas Haluoleo 93232 Kendari Sulawesi Tenggara INDONESIA Faculty of Agriculture Universitas Haluoleo 93232 Kendari Sulawesi Tenggara INDONESIA Institute of Ocean and Earth Sciences University of Malaya MALAYSIA Graduate School of Transdisiplinary Sciences and Engineering Tokyo Institute of Technology Tokyo JAPAN

The mangroves are among the most at-risk coastal ecosystems, which are especially vulnerable to sea-level rise. This study aimed to know the growth capacity and biochemical defense of mangrove seedlings of Rhizophora mucronata under different sea water logging at experimental condition in Kendari bay, Southeast Sulawesi, Indonesia. Results showed that maximum leaf area, intrinsic rate increase of leaf area and relative growth rate (RGR) of height of the R. mucronata seedlings were significantly higher at treatment of 45 cm from the ground than other treatments, whereas RGR of diameter was the higher at treatment of 30 cm from the ground. Meanwhile, half expansion period leaf area was almost similar for all treatment. However, the carbon and nitrogen ratio in leaves of R. mucronata seedlings was significantly higher at seawater logging of 0 cm from the ground. The flavonoid and vitamin C concentrations in R. mucronata seedlings were higher at higher level inundation indicating protective role of these compounds under seawater logging stress.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Impact of latex coagulant various from rubber industry in South Sumatera

引用

AIP Conference Proceedings 2021年第1期2344卷

作者： Ferly Oktriyedi Muhammad Hatta Dahlan Irfannuddin Ngudiantoro 1Study Program of Environmental Science Sriwijaya University Jl. Raya Palembang - Prabumulih Km. 32 North Indralaya Ogan Ilir South Sumatera 30662 Indonesia 2Faculty of Engineering Sriwijaya University Jl. Raya Palembang - Prabumulih Km. 32 North Indralaya Ogan Ilir South Sumatera 30662 Indonesia 3Faculty of Medicine Sriwijaya University Jl. Raya Palembang - Prabumulih Km. 32 North Indralaya Ogan Ilir South Sumatera 30662 Indonesia 4Faculty of Mathematics and Natural Science Sriwijaya University Jl. Raya Palembang - Prabumulih Km. 32 North Indralaya Ogan Ilir South Sumatera 30662 Indonesia

Rubber commodity is one of the superior commodities in South Sumatra. The main problem of the rubber industry that remains unsolved is that the product has a low quality due to poor handling of its raw material. Most farmers, in South Sumatera, often uses coagulant that are not recommended, namely sulfuric acid or para vinegar, alum, TSP fertilizer, a combination of para and alum vinegar, and others such as yam, and tempe washing water. Para vinegar, TSP fertilizer, alum and pineapple/ pineapple juice are acidic which cause smells of ammonia and sulfides. The liquid waste generated in the material process pollutes the environment if it is not properly intervened. Material handling in a rubber factory causes several illnesses for workers. However, the correlation of pollutants with these illnesses are not yet and become the focal point of this report.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Retracted: Design of Decision Support System Determination of Inventory Inventory Using Single Exponential Smoothing Forecasting Method

Retracted: Design of Decision Support System Determination o...

引用

2018 Workshop on Multidisciplinary and Its Applications: Applied Mathematics, Computer Science, Information Systems, and Information Technology, WMA-Mathcomtech 2018

作者： Iqbal, Muhammad Abdullah, Dahlan Hartono, H. Erliana, Cut Ita Sriadhi, S. Nurmawati, N. Prasnowo, M Adhi Hasibuan, Abdurrozzaq Iskandar, Akbar Saddhono, Kundharu Abdussakir, A. Musa, Hastuti Setiawan, Muhammad Ikhsan Sagala, Youmeni Siahaan, Rumiris Sinaga, Eka Mayastika Syahputri, Anggraini Milanie, Feby Aspan, Henry Khaddafi, Muammar Department of Computer System Universitas Pembangunan Panca Budi Medan Indonesia Department of Informatics Universitas Malikussaleh Aceh Indonesia Department of Computer Science STMIK IBBI Medan Indonesia Department of Industrial Engineering Universitas Malikussaleh Aceh Indonesia Department of Electrical Engineering Universitas Negeri Medan Indonesia Faculty of Industry Technique University of 45 Surabaya Indonesia Department of Industrial Engineering Universitas Maarif Hasyim Latif Sidoarjo Indonesia Faculty of Engineering Universitas Islam Sumatera UtaraMedan Indonesia Indonesia Informatics Engineering STMIK AKBA Makassar Indonesia Graduate Program Universitas Sebelas Maret Surakarta Indonesia Department of Mathematics Education State Islamic University of Malang Malang Indonesia Department of Mathematics Universitas Muhammadiyah Parepare Indonesia Department of Civil Engineering Narotama University Surabaya Indonesia STIE Bina Karya Tebing Tinggi Indonesia Universitas Pembangunan Panca Budi Medan Indonesia Department of Accounting Universitas Malikussaleh Aceh Indonesia

The development of information and communication technology at this time has touched all sides of life. Almost no side of human life is not touched by this information technology, which is more synonymous with the world of computerization. No exception also with the computerization that is popular in the corporate environment and government agencies. If in ancient times everything was still done manually. However, at this time all leaders and management have realized the importance of this information technology products that can facilitate them in carrying out the day-to-day corporate functions. Decision Making System of goods purchasing is one of the determinants of the accumulation of goods. If the decision is taken right then stockpiling of goods can be avoided. In this thesis the authors designed a web-based system that helps Management in making the decision of the purchase amount of goods. the system was developed by using Microsoft Visual Studio 2010 and using SQL Server database processing applications. The end result of system design is expected to help minimize the accumulation of goods. © Published under licence by IOP Publishing Ltd.

关键词： Decision support systems

来源：评论

学校读者我要写书评

暂无评论

The comparison of optimum heuristic and deterministic scheduling rules for job shop scheduling in the manufacture

引用

IOP Conference Series: Materials Science and engineering 2019年第1期523卷

作者： E Fradinata Z M Kesuma Industrial Engineering Department Syiah Kuala University Banda Aceh Indonesia Statistics Study Program Faculty of Mathematics and Natural Science Syiah Kuala University Banda Aceh Indonesia

There are some types of scheduling problems in the production line of manufacturing. One of the most multiple usages of the operational machine for doing some jobs is job shop scheduling. The implementation of the job shop problem in this study uses the input of random order of eight job numbers. The raw materials for the job numbers to do the process and the five type machines are considered. The machines work in different functions to do the jobs for some materials. The materials have processed the work in process (WIP) before they are sent to the warehouse. The proposed of this study is to find the optimal condition of job shop scheduling heuristic and deterministic rules to minimize the makespan, tardiness with the heuristic and some deterministic rules in the Lekin software. The heuristic methods are General SBRoutine and the DASH (shifting bottleneck). The deterministic use Critical Ratio (CR) Rule, First come First Serve Rule (FCFS), Longest Processing Time (LPT), Shortest Processing Time (SPT), Weighted Shortest Processing Time (WSPT) and Machine Sequence (MS). The result shows that the minimum makespan is FCFS method with 47 minutes, the tardiness is 27, and for the machine no3. It produces the effective percentage of The contras deviation performance among the jobs of DASH, and compare to the FCFS is as follow, DASH, LPT, MS, SPT, WSPT are increasing 4.26%; 31,91%; 8.51%; 4.26% and 12.77% respectively.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：