检索结果-内蒙古大学图书馆

Forecasting Private Vehicle Ownership and It Effect to Public Transportation Planning in Banda Aceh, Indonesia

IOP Conference Series: Materials Science and engineering 2020年第1期917卷

作者： Ruslan Ruslan Sugiarto Sugiarto Renni Anggraini Sofyan M Saleh Doctoral Program School of Engineering Universitas Syiah Kuala Banda Aceh Indonesia 23111 Department of Civil Engineering Universitas Syiah Kuala Banda Aceh 23111 Indonesia.

This paper analyses trends in private vehicle ownership in developing countries, namely in Indonesia. In the last few years private vehicle ownership has increased very sharply in line with economic growth, rapid urbanization growth, significant population growth and ineffective and efficient transportation system services. In 2011, Indonesia's population had reached more than 240 million people, more than 17 million private vehicles and more than 11 million drivers. As usual, income has become a major factor influencing private vehicle ownership. However, population growth also affects ownership of the number of private vehicles. Besides other factors such as government policies, vehicle financing, household characteristics and travel behaviour. Therefore this paper tries to analyse the level of income and the level of population growth and also other factors that affect vehicle ownership in Indonesia, especially in the western part of Indonesia, the city of Banda Aceh. The city of Banda Aceh is located in the westernmost region of the archipelago, a city that is growing after the earthquake and Tsunami. Banda Aceh city has population more than 223.446 in 2010 and increase 10 per cent for the last five years. Private vehicle mode ownership is related to negative impact as well as congestions, accidents, unavailability of parking lots, noise, health problem, pollutions and other problem. Seeing the many negative effects of increasing the number of private vehicle ownership so that it becomes an arduous task for policy makers. The results of the study show that there is a strong relationship between income growth and population growth with the level of private vehicle ownership..

关键词：

来源：评论

学校读者我要写书评

暂无评论

Predicting online item-choice behavior: A shape-restricted regression approach

arXiv

引用

arXiv 2020年

作者： Nishimura, Naoki Sukegawa, Noriyoshi Takano, Yuichi Iwanaga, Jiro Graduate School of Systems and Information Engineering University of Tsukuba Ibaraki305-8577 Japan Recruit Lifestyle Co. Ltd. Tokyo100-6640 Japan Department of Information and Computer Technology Tokyo University of Science Tokyo125-8585 Faculty of Engineering Information and Systems University of Tsukuba Ibaraki305-8577 Doctoral Program in Policy and Planning Sciences University of Tsukuba Ibaraki305-8577 Erdos Inc. Kanagawa222-0033

This paper examines the relationship between user pageview (PV) histories and their item-choice behavior on an e-commerce website. We focus on PV sequences, which represent time series of the number of PVs for each user-item pair. We propose a shape-restricted optimization model that accurately estimates item-choice probabilities for all possible PV sequences. This model imposes monotonicity constraints on item-choice probabilities by exploiting partial orders for PV sequences, according to the recency and frequency of a user's previous PVs. To improve the computational efficiency of our optimization model, we devise efficient algorithms for eliminating all redundant constraints according to the transitivity of the partial orders. Experimental results using real-world clickstream data demonstrate that our method achieves higher prediction performance than that of a state-of-the-art optimization model and common machine learning methods. Copyright © 2020, The Authors. All rights reserved.

关键词： Graph theory

来源：评论

学校读者我要写书评

暂无评论

Implementation of Apriori Algorithm for Analysis of Consumer Purchase Patterns 1

Implementation of Apriori Algorithm for Analysis of Consumer...

引用

1st International Conference on Computer Science and Applied Mathematic, ICCSAM 2018

作者： Panjaitan, Suprianto Sulindawaty Amin, Muhammad Lindawati, Sri Watrianthos, Ronal Sihotang, Hengki Tamando Sinaga, Bosker Teknik Informatika STMIK Pelita Nusantara Medan Sumatera Utara Indonesia Faculty of Computer Science and Information Technology Universitas Sumatera Utara Medan Indonesia Program Doctoral Vocational Technology Education Postgraduate Engineering Faculty Padang State University Padang West Sumatera Indonesia Manajemen Informatika AMIK Logika Sumatera Utara Indonesia Manajemen Informatika AMIK Labuhan Batu Sumatera Utara Indonesia

Consumer purchasing patterns are a form of purchases made by consumers, whether someone or a lot of people to get the desired item by making a purchase transaction. One characteristic of the purchase pattern is the existence of acquiring something through exchanging money. This study aims to create an application that is used in determining consumer purchasing patterns by applying a priori algorithms and using Visual Basic 2010 as a tool for determining consumer purchase patterns. This application uses a priori algorithm calculation method where the sample consumer purchase data will be sorted and calculated by providing the value of the minium support and configuration parameters and based on the results of confidence the largest number of conclusions such as: can be used as information for determining sales, the application of a priori algorithms can provide information pattern combination item set from consumer purchase data that is with support above 15% and confidence above 50% on item set. © Published under licence by IOP Publishing Ltd.

关键词： Condensed matter physics

来源：评论

学校读者我要写书评

暂无评论

A Comparison Study of Modulation Techniques of Data Communication for HST in CBTC Systems

A Comparison Study of Modulation Techniques of Data Communic...

引用

International Conference on Instrumentation Control and Automation (ICA)

作者： Selvi Lukman Yul Yunazwin Nazaruddin Endra Joelianto Doctoral Program of Engineering Physics Faculty of Industrial Technology Institut Teknologi Bandung Bandung Indonesia Instrumentation and Control Research Group Institut Teknologi Bandung National Center for Suistanable Transportation Technology Bandung Indonesia

This paper presents a comparison study of modulation techniques of data communication in Communication-Based Train Control (CBTC) Systems applied to HST for Jakarta-Bandung. The signalling system is the most crucial part of HST as the center of operation control. CBTC systems are the next generation of signalling technology that adopts the integration of equipment on trains and land base by using wireless communication to collect position information and control signals from trains. The systems can reduce wayside equipment significantly and facilitate other advantages such as high traffic densities and the adoption of single-driver or unmanned trains. The general-purpose 2.4 GHz band usage, which is appropriate for many different regions. The CBTC system has also been made robust enough to prevent signal interferences from other wireless users and reliable for any mission-critical situations. However, LTE-R wireless communication supports more advanced broadband applications to help public safety and railway organizations compared to GSM-R. The ability of Long Term Evolution (LTE) wireless communications has been undoubtedly chosen by the leading professional mobile radio communication which faster supports mission-critical voice and broadband services in the future. GMSK modulation (Gaussian Minimum Shift Keying) is proven as an effective form of modulation for GSM-R. Signal transmission phases in the GMSK scheme are continuous and being smoothed by a Gaussian filter. Meanwhile, QPSK (Quadrature Phase Shift Keying) is a suitable modulation scheme for LTE-R. In QPSK, dual information bits are combined into a symbol which is immediately modulated by nominating one within the four possible carrier phase shift states without using another carrier frequency. In the implementation, the selection of the modulation techniques is based on the required specifications and affordability of the infrastructures.

关键词： Phase shift keying Long Term Evolution OFDM Rail transportation GSM

来源：评论

学校读者我要写书评

暂无评论

Develop learning methods imr (integrated material realistic) alternative mathematics learning during a pandemic

引用

Journal of Physics: Conference Series 2021年第4期1918卷

作者： I.M. Rusmana Zainuri Wardono A.L Nulhakim Doctoral Program Universitas Negeri Semarang Indonesia Department of Mathematic Education Faculty of Mathematics and Natural Science Universitas Indraprasta PGRI Jakarta Indonesia Department of Mathematic Education Faculty of Mathematics and Natural Science Universitas Negeri Semarang Indonesia Department of Informatics Engineering Faculty of Engineering and Computer Science Universitas Indraprasta PGRI Jakarta Indonesia

The learning methods used by teachers in schools in Serang City are very ineffective, especially during the pandemic. This is because not integrated content of material in one subject with other subjects. Never mind between subjects, sometimes the material is not well integrated. The purpose of this study is to provide an alternative learning method during a pandemic, namely a method that integrates material with the realities of life which is abbreviated as IMR (Integrated Realistic Material). The method in this research is Research and Development (RnD) with the ADDIE model. In making this learning method according to the stages from the ADDIE study. The results of this study are in the form of learning methods that are integrated with the realities of life during the pandemic.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Biodegradation of COD in Household Wastewater with Aerobic Biofilm Technology by Adding Sediment Drainage Sewerage 2

Biodegradation of COD in Household Wastewater with Aerobic B...

引用

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

作者： Sumiyati, Sri Purwanto, P. Sutrisno, Endro Sudarno, S. Arthawidya, Jalu Izzudin, Humam Doctoral Program of Environmental Sciences School of Po. Grad. Diponegoro University Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Diponegoro University Semarang Indonesia Department of Environmental Engineering Faculty of Engineering Diponegoro University Semarang Indonesia

Household wastewater contains contaminants that harm the environment. One of the pollutants found COD. If being discharged into the environment directly, COD concentrations exceeding the existing quality standard will disrupt the ecosystem in the receiving water body. One of the technologies that can degrade COD is biofilm technology with honeycomb tube media. This research aims to analyze the decrease of COD concentration present in wastewater household with biofilm technology of honeycomb media. The reactor used in was made of glass with a thickness of 4 mm, a volume of 18 litres and operated continuously. The media used is made of a PVC pipe, cut to 3 cm in size and then glued to one another, forming a honey comb. The results showed that there has been a decrease in COD concentration of household wastewater. © 2018 The Authors, published by EDP Sciences.

关键词： Biodegradation

来源：评论

学校读者我要写书评

暂无评论

Experimental investigation of thermal behavior in an active type solar water heater based on phase change material using solar simulator

引用

AIP Conference Proceedings 2020年第1期2296卷

作者： Muhammad Nadjib Suhanan Joko Waluyo 1Doctoral Study Program Department of Mechanical and Industrial Engineering Faculty of Engineering Gadjah Mada University Yogyakarta Indonesia 2Mechanical Engineering Study Program Faculty of Engineering Universitas Muhammadiyah Yogyakarta Yogyakarta 55183 Indonesia 3Department of Mechanical and Industrial Engineering Faculty of Engineering Gadjah Mada University Yogyakarta Indonesia

The weakness of an outdoor solar water heater (SWH) experiments is the difficulty in determining its thermal behavior. The fluctuation of solar radiation intensity causes the supply of energy received by SWH also fluctuate. The result is that the thermal behavior of the SWH cannot be known for specific parameters. This paper aims to investigate the thermal behavior of an active type SWH containing paraffin wax using the constant heat flux method. A phase change material (PCM) inserted into the capsule. The capsules were arranged in a tank to form a heat exchanger (HE). The thermocouples were mounted both on the waterside and the PCM side. The solar simulator installed on the top of the collector, and the SHW system placed indoors. The heat flux and water flow were set at 1000 W/m2 and 2 LPM, respectively. The temperatures of water and PCM for 143 minutes charging recorded. The data obtained were used to analyze the thermal behavior of water and PCM. The results showed that the average heating rate of water and PCM was 0.227 °C/min and 0.205 °C/min, respectively. The value of this adjacent average heating rate shows that HE has functioned well in removing heat energy from water. The accumulated thermal energy produced was 13.08 MJ. Indoor experiments can reveal the thermal behavior of the SWH-PCM systems.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The Effects of Magnesium Hydroxide (Mg(OH)2) on the Characteristics and Performance of Polyethersulfone Membranes (PES) for Water Treatment

引用

IOP Conference Series: Materials Science and engineering 2020年第1期845卷

作者： U Fathanah I Machdar M. Riza N Arahman M R Lubis F Nurfajrina A Yolanda M Y Wahab Department of Chemical Engineering Faculty of Engineering Universitas Syiah Kuala Darussalam Banda Aceh 23111 Indonesia Doctoral Program School of Engineering Universitas Syiah Kuala Darussalam Banda Aceh 23111 Indonesia

Surface water is commonly used as a source of clean water, but increasingly, surface water is contaminated with various foulants. Humic acids (HAs) are a natural organic matter predominant in ground and surface waters. HAs can reduce the quality of water. This study aims to investigate the results adding magnesium hydroxide, or Mg(OH)2, to modify polyethersulfone (PES) membranes by determining the characteristics and performance of the membranes. The mixed-matrix membranes were prepared using PES and various amounts of modified Mg(OH)2 (0%, 1%, and 1.5% wt) as nanoparticle additives. A scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), and water contact-angle analysis were used to characterize the membranes, followed by a membrane performance test (flux, permeability, and selectivity of the membrane) using a dead end ultrafiltration module. It can be concluded that Mg(OH)2 can improve the hydrophilicity of PES membrane with decreasing the water contact angle from 84.2° (pure PES membrane) to 68° (modified membrane), where ultrafiltration membranes with the highest permeability coefficient are obtained at 1.5% wt of Mg(OH)2 with a value of 41.94 L/*** and a rejection percentage of 67.72%.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The Environmental Impact Study of Micro Hydro Power in Pekalongan Indonesia 2

The Environmental Impact Study of Micro Hydro Power in Pekal...

引用

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

作者： Suwarto Hadi, Sudharto P. Hermawan Doctoral Program of Environmental Science School of Postgraduate Studies Diponegoro University Semarang Indonesia Department of Environmental Science Diponegoro University Semarang Indonesia Faculty of Engineering Diponegoro University Semarang Indonesia

Curugmuncar II micro hydro power (MHP) located in Petungkriyono sub district is one of three MHPs installed in Pekalongan district. This study aims to analyze the MHP operation environmental impact. The study used qualitative method, with interviews, observations, and material testing. The data used are primary and secondary data. This research was conducted in Curugmuncar Village, Petungkriyono Subdistrict, Pekalongan Regency, Indonesia. MHP has power capacity of 100 KW with power usage of 50 KW. MHP used by 155 users with load capacity 2 A 220 volt AC. The community more used of lights as the houses and street lighting. The MHP operation had several environmental factors such as: Sociology, technically feasible, hydrology, physical and chemical water quality, ergonomics, economically feasible, irrigation, clean water supply, government policy, and others. The supporting factors sustainability of MHP were sociology, irrigation, ergonomics, clean water supply, physical and chemical water quality, hydrology, and government policy. The inhibiting factors of MHP operation were technically feasible, economically feasible, and government policy. The results showed that the MHP environment requires a professional management system to achieve the MHP sustainability. © 2018 The Authors, published by EDP Sciences.

关键词： Irrigation

来源：评论

学校读者我要写书评

暂无评论

Integration of Local Traditions Bugis-Makassarese: Learning Strategies to Improve Mathematical Communication Skills

引用

Journal of Physics: Conference Series 2021年第1期1808卷

作者： A M I T Asfar A M I A Asfar A Nurannisa Department of Mathematics Education STKIP Muhammadiyah Bone Dg. Pasolong Street No. 62 Watampone Indonesia Doctoral Program in Science Education Universitas Negeri Makassar Bonto Langkasa street Makassar Indonesia Department of Chemical Engineering of State Polytechnic of Ujung Pandang Tamalanrea Makassar Indonesia

Communication skill is of local Bugis-Makasar one of skill needed in mathematical learning in order that the students can solve the problem in social life particularly economic mathematic. Integration of local tradition sipakatau, sipakainge and sipakalebbi consists of philosophy which can increase students' communication skill. The purpose of this study is to find out the improvement of students' communication skill of STKIP Muhammadiyah Bone in using learning strategy of 3S. Design of this study was experimental research Quasi Experimental Design using Nonequivalent Control Group Design. Based on the results of this study can be concluded that the earning strategy of 3S is effective in improving student's communication skill in economic mathematics in STKIP Muhammadiyah Bone not only on students' cognitive side but also affective and psychomotor side.

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：