检索结果-内蒙古大学图书馆

4th International Conference on Electronic and Electrical engineering and Intelligent System, ICE3IS 2024

作者： Nurcahyadi, Teddy Blum, Christian Universitas Muhammadiyah Yogyakarta Mechanical Engineering Study Program Engineering Faculty Yogyakarta Indonesia Institut d'Investigació en Intel·ligència Artificial Consejo Superior de Investigaciones Científicas Barcelona Spain

ISBN: (纸本)9798350378368

Job shop scheduling methods are among the earliest optimization techniques that have been well-studied since 1950s. This fact reflects the prevalence of job shop scheduling problems in our daily lives, and hence, the importance of methods and tools needed to solve them. Human civilization has been evolving rapidly in the last several decades, presenting more difficult scheduling problems and the need to solve them efficiently. This article assesses the existing problems and optimization techniques in job shop scheduling. Furthermore, current and future challenges in this area are highlighted. © 2024 IEEE.

关键词： Job shop scheduling

来源：评论

学校读者我要写书评

暂无评论

Current advances in bioethanol synthesis from lignocellulosic biomass: sustainable methods, technological developments, and challenges

引用

Journal of Umm Al-Qura University for Applied Sciences 2025年 1-18页

作者： Novia, Novia Melwita, Elda Jannah, Asyeni Miftahul Selpiana, Selpiana Yandriani, Yandriani Afrah, Bazlina Dawami Rendana, Muhammad Department of Chemical Engineering Faculty of Engineering Universitas Sriwijaya Jl. Raya Palembang-Prabumulih KM 32 Inderalaya Sumatera Selatan Ogan Ilir 30662 Indonesia Master Program of Environmental Management Graduate School Universitas Sriwijaya Jl. Padang Selasa 524 Bukit Besar Sumatera Selatan Palembang 30139 Indonesia Doctoral Program Faculty of Engineering Universitas Sriwijaya South Sumatra Palembang 30139 Indonesia

Bioethanol production from lignocellulosic biomass has become an economical and environmentally friendly substitute to current petroleum-based fuels. This is due to its ability to decrease carbon dioxide emissions and make use of plentiful natural resources. Current advances in this area concentrate on improving the effectiveness and expandability of the conversion procedures by using inventive pretreatment approaches, enhanced enzyme compositions, and refined fermentation technologies. Consolidated bioprocessing (CBP) and utilizing genetically modified microbes have expedited the decomposition of intricate biomass complexes and enhanced overall productivity. Furthermore, process intensification developments, such as the adoption of hybrid reactors and continuous production systems, have considerably decreased production expenses and energy usage. Nevertheless, there are still obstacles to overcome, including the raw materials inconsistency, the demand for efficient recovery and purifying techniques, and the financial viability of extensive processes. This study examines the latest developments in bioethanol production from lignocellulosic biomass. It focuses on ecological approaches, technical advancements, and the main obstacles that need to be overcome to exploit its promise as a biofuel fully. This review primarily focused on outcomes documented in the last five years from 2019 to 2024. The first segment of this work focuses on the second-generation bioethanol production process, which includes: the properties and composition of lignocellulosic biomass, pretreatment, enzymatic saccharification, and fermentation. The subsequent portion of this paper examines a techno-economic analysis, the obstacles and the prospective technology outlook. It finishes by discussing findings from research fields that haven't been investigated yet, besides the obstacles faced in bioethanol manufacturing methods. © The Author(s) 2025.

关键词： Bioethanol Enzymatic hydrolysis Fermentation Lignocellulosic biomass Pretreatment

来源：评论

学校读者我要写书评

暂无评论

Application of the K-Medoids Clustering Model and Borda Decision Group in Viewing Flood Area Groupings in North Aceh Regency

Application of the K-Medoids Clustering Model and Borda Deci...

引用

Artificial Intelligence and Image Processing (IWAIIP), International Workshop on

作者： Wahyu Fuadi Ilham Sahputra Dedi Fariadi Agustinar Informatics Engineering Study Program Faculty of Engineering Universitas Malikussaleh Lhokseumawe Indonesia Information Systems Study Program Faculty of Engineering Universitas Malikussaleh Lhokseumawe Indonesia Electrical Engineering Study Program Faculty of Engineering Universitas Malikussaleh Lhokseumawe Indonesia

The importance of the K-Medoid model in viewing disaster-prone areas in each sub-district in North Aceh. The advantage of the k-medoid model results is that it has better cluster centers than other models. The novelty of this research is the cluster results are assessed by each decision maker using the Borda group model in providing flood disaster assistance or areas that are a priority for handling, which are included in the flood-prone cluster. Therefore, this research is important because it can be used to identify areas most severely affected by flooding. This research aims to analyze and identify the impact of flood hazards based on grouping and decision-making using the Borda group model in each sub-district in North Aceh. The results of the k-medoids model show 3 clusters that can see potential areas for flood disasters, namely very vulnerable. There are six sub-districts. For the k-medoids results, ten sub-districts are vulnerable. Lastly, the safe zones are 11 sub-districts. This research’s k-medoid model analysis is more precise in seeing clusters of places that are potentially affected by flooding based on spatial maps of their nearest neighboring areas. The percentage of each cluster is as follows: Cluster 1 is 4%, Cluster 2 is 55%, and Cluster 3 is 41%. The k-medoid model provided this result after three iterations, with a closeness difference of 1.594510537. The results of the Borda model group research can be used as a recommendation for the areas that receive the highest priority in disaster management.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Influence of multitasking-induced mental workload on electrodermal activity and human cortisol 15

Influence of multitasking-induced mental workload on electro...

引用

15th Biomedical engineering International Conference, BMEiCON 2023

作者： Pidech, Jutamas Neubert, Manida Swangnetr Chuchuen, Oranat Khon Kaen University Faculty of Engineering Biomedical Engineering Program Khon Kaen Thailand Chulalongkorn University Faculty of Engineering Department of Industrial Engineering Bangkok Thailand Chulalongkorn University Human-Robot Collaboration and Systems Integration Research Unit Bangkok Thailand Khon Kaen University Faculty of Engineering Department of Chemical Engineering Khon Khon Kaen Thailand

ISBN: (纸本)9798350345247

Current work environments have undergone a noticeable shift towards higher cognitive demands and increased involvement in multitask performance. It has therefore become crucial to investigate the levels of mental workload experienced by operators. Simulated cognitive multitasking, with varying workload intensity, duration and work order, was tested in 18 volunteers to determine its impact on task performance, perceived workload, galvanic skin response;GSR, and cortisol levels in sweat and saliva. The results showed that as workload intensity increased, there was a concurrent increase in perceived workload and a significant negative impact on task performance. As time progressed, there was a notable increase in performance. Differences in GSR can be observed based on time on task and order of stressor levels delivered to the participants. Preliminary results of cortisol levels in sweat and saliva showed distinct trends in relation to workload intensity. © 2023 IEEE.

关键词： Multitasking

来源：评论

学校读者我要写书评

暂无评论

Entropy-Based Analysis of Electromyography Signal Complexity During Flexion of the Flexor Carpi Radialis Muscle Under Varied Load Conditions 4th

Entropy-Based Analysis of Electromyography Signal Complexity...

引用

4th International Conference on Electronics, Biomedical engineering, and Health Informatics, ICEBEHI 2023

作者： Katherine Putra, Alfian Pramudita Kurniawan, Angeline Shane Istiqomah, Dezy Zahrotul Sholihah, Nisa’ul Al-Salehi, Khalid Ali Salem Ain, Khusnul Sapuan, Imam Andarini, Esti Biomedical Engineering Master Program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya60115 Indonesia Biomedical Engineering Study program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia School of Nursing Southern Medical University Guangdong Guangzhou510515 China

ISBN: (纸本)9789819714629

The motor impairments that stroke patients experience as a primary contributor to death and disability also impact their quality of life. Due to its characteristics as complex muscle signals, the Electromyograph (EMG) signal may be one of the markers in rehabilitation and a substitute that may be used to judge the success of rehabilitation. This study aims to analyze the complexity of EMG signals originating from the flexion of the flexor carpi radialis muscle with various weights indicating the rehabilitation state. It is important to monitor the progress of rehabilitation, and it can be done by using complexity analysis. The complexity of the EMG is examined in this work utilizing entropy measurement, namely Approximate Entropy (ApEn), Sample Entropy (SampEn), and Fuzzy Approximate Entropy (fApEn). We concentrated on the flexor carpi radialis muscle using flexion–extension exercises and varying the weight load. This study’s results indicate differences in the complexity of the EMG signal in the flexor carpi radialis when performing flexion–extension movements. Three differences showed a correlation based on the value of ApEN, SampEn, and fApEn. Complexity Analysis using fApEn showed the best correlation at R = 0.9966, which can be used to evaluate the rehabilitation process. The increase in weight was followed by the increase of the fApEn value, indicating that the value can be used to evaluate the rehabilitation process. The use of complexity analysis of EMG signal from flexion movement in flexor carpi radialis with various weights can be used to indicate the progress in the rehabilitation process. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Entropy

来源：评论

学校读者我要写书评

暂无评论

Application of Microbially Induced Calcite Precipitation for Slope Stabilization: A Review 7th

Application of Microbially Induced Calcite Precipitation for...

引用

7th International Conference on Architecture and Civil engineering, ICACE 2023

作者： Farichah, Himatul Hutama, Dio Alif Firmansyah, Yerry Kahaditu Department of Civil Engineering Faculty of Engineering Universitas Pembangunan Nasional "Veteran" Jawa Timur Jalan Rungkut Madya No. 1 Surabaya60294 Indonesia Study Program of Environmental Engineering Department of Biology Faculty of Science and Technology Universitas Airlangga Jalan Dr. Ir. H. Soekarno Surabaya60115 Indonesia

ISBN: (纸本)9789819707508

Microbially induced calcite precipitation (MICP) is an emerging geotechnical improvement technology that has received wide attention from researchers around the world. The applications of MICP in geotechnical field including soil improvement, surface resistance from erosion, coastal protection, and slope stabilization have been investigated by previous researchers. This paper presents a review on application of MICP for slope stabilization. Three subtopics were selected to be discussed: application of native bacteria, modified MICP methods, and field-scale studies. This review reveals that (1) MICP has the potential for slope stabilization;(2) native bacteria are ideal for use in MICP for application in slopes located in regions with variable cold climatic conditions;(3) to improve the effectiveness of MICP for slope stability, traditional MICP needs be modified;(4) MICP appears to have the potential to be one of the future landslide mitigation strategies since it works effectively in the field-scale test. Additionally, the recommended further researches in MICP for slope stabilization are: (1) study on the other types of native bacteria for diverse environmental condition is required;(2) to discover the best slope stabilization method, the combination of MICP and other traditional slope stabilization techniques should be investigated;(3) it is critical to investigate the effectiveness of the MICP technology for slope stabilization under various conditions in the field. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Slope stability

来源：评论

学校读者我要写书评

暂无评论

Novel cubic heterojunction Fe2O3/ZnO composite for the photocatalyst application

引用

Materials Today: Proceedings 2023年 75卷 1-8页

作者： Hemnil, P. Prapawasit, Y. Karthikeyan, V. Wongwuttanasatian, T. Seithtanabutara, V. Energy Engineering Program Faculty of Engineering Khon Kaen University 40002 Thailand Mechanical Engineering Division Khon Kaen University Khon Kaen 40002 Thailand Center for Alternative Energy Research and Development Khon Kaen University Thailand Department of Chemical Division Khon Kaen University Khon Kaen 40002 Thailand

Dye Sensitize Solar Cell (DSSC) gained attention as a replacement for silicon solar cells owing to operational and economic benefits. This study aims to synthesize the Fe2O3/ZnO composites using two different methods;Hydrothermal-calcination (HTC) and Hydrothermal (HT) method. The prepared samples structural properties were analysed using XRD, SEM/EDX, BET, FTIR, and TGA. It was found that the HT-Fe2O3/ZnO composite had a lower crystalline peak with a higher specific area of 34.855 m2/g than HTC-Fe2O3/ZnO composite as the formation of ZnO and Fe2O3 was well hybrid structure via atomic substitution mechanism. The particle characterization of HTC-Fe2O3/ZnO showed that Fe2O3 surrounding ZnO and had the composition of Fe, Zn and O of 16.71 wt%, 62.90 wt% and 20.39 wt%, respectively. HT-Fe2O3/ZnO showed a cubic structure with higher content ot Fe (47.63 wt%), lower content of Zn (34.89 wt%) and O (17.48 wt%). Both composites prepared from HT and HTC methods attained high absorbency in the ultra-violet and visible range, advantageously HT-Fe2O3/ZnO exhibits better absorbance in the visible light range, thus, resulting in a band gap energy is lower to 2.98 eV. Therefore, HT-Fe2O3/ZnO material is recommended for DSSC to achieve higher performance. © 2022 Elsevier Ltd

关键词： Zinc oxide

来源：评论

学校读者我要写书评

暂无评论

Developing a Waste Management Strategy for Reducing Jakarta's Greenhouse Gas Emissions

SSRN

引用

SSRN 2024年

作者： Kristanto, Gabriel Andari Dahlan, Astryd Viandila Sekarsari, Nindi Environmental Engineering Study Program Civil Engineering Departement Engineering Faculty Universitas Indonesia Depok16424 Indonesia

Increasing amount of waste poses substantial environmental issues because poor waste management emits higher greenhouse gas (GHG, contributing to global warming and climate change. As Indonesia's most populous city, Jakarta faces challenges related to waste management. The city generates significant waste daily, with limited resources and funding to manage it *** study aims to analyze GHG emissions from Jakarta's waste sector and design management scenarios to optimize GHG emission reductions. The research examines local factors to determine the most effective scenario for Jakarta from three proposed waste management designs. The findings may serve as a basis for policymaking that promotes low-carbon and climate-resilient regional development. The study demonstrates that integrated waste management can significantly reduce GHG emissions compared to current practices in Jakarta. However, challenges related to policy and legal frameworks, stakeholder engagement, waste facility technologies, and financial resources must be addressed to achieve these reductions. © 2024, The Authors. All rights reserved.

关键词： Greenhouse gas emissions

来源：评论

学校读者我要写书评

暂无评论

Charging–Discharging Characteristics of NaCl–KCl Eutectic Salt in a Thermal Box System 4th

Charging–Discharging Characteristics of NaCl–KCl Eutectic ...

引用

4th International Conference on Experimental and Computational Mechanics in engineering, ICECME 2022

作者： Zulmiardi, Zulmiardi Setiawan, Adi Meriatna, Meriatna Sayuthi, Muhammad Gunawati, Gunawati Riskina, Shafira Putra, Dodi Lesmana Mechanical Engineering Departement Faculty of Engineering Universitas Malikussaleh Jalan Batam Bukit Indah Muara Satu Lhokseumawe24352 Indonesia Chemical Engineering Departement Faculty of Engineering Universitas Malikussaleh Jalan Batam Bukit Indah Muara Satu Lhokseumawe24352 Indonesia Departement Physics Faculty of Mathematics and Natural Sciences Universitas Syiah Kuala Darussalam Banda Aceh23111 Indonesia Magister Program in Renewable Engineering Faculty of Engineering Universitas Malikussaleh Bukit Indah Muara Satu Lhokseumawe24352 Indonesia

ISBN: (纸本)9789819974948

Solar radiation is a varied source of energy, and the mismatch between the availability of these sources and domestic energy demand is a major challenge that must be faced. Energy storage system can be considered as effective solution to overcome the challenge in solar energy utilization. In this work, a thermal box was prepared as energy storage testing apparatus by using a 5W lamp as the heat source located at the center of the box. In the middle of thermal box, the sample of phase change material (PCM) was placed and monitored in order to find out the charging and discharging characteristics. The purpose of this study was to investigate the charging and discharging performance of NaCl–KCl eutectic salt at various ratios. The specific heat capacity and density of all PCM samples were also tested during this investigation. The changes in temperature were observed through type-k thermocouple sensors equipped with data logger. In general, it can be concluded that reducing KCl portion in PCM slightly decreases the specific heat capacity. Experiment results showed that PCM-1 (eutectic salt with 30 wt% NaCl–70 wt% KCl) has the highest specific heat capacity, i.e., 6.93 J/g˚C. The highest rate of charging and discharging was exhibited by PCM-1, highlighting a positive effect of KCl content in eutectic salt. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Sodium chloride

来源：评论

学校读者我要写书评

暂无评论

A low-cost and environmentally-friendly chitosan/spent coffee grounds composite with high photothermal properties for interfacial water evaporation

引用

Journal of Industrial and engineering Chemistry 2023年 126卷 283-291页

作者： Hsieh, Po-Cheng Chen, Yi-Chun Zheng, Nai-Ci Mangindaan, Dave Chien, Hsiu-Wen Department of Chemical and Materials Engineering National Kaohsiung University of Science and Technology Kaohsiung80778 Taiwan Department of Forestry National Chung-Hsing University Taichung40227 Taiwan Professional Engineering Program Department Faculty of Engineering Bina Nusantara University Jakarta11480 Indonesia National Kaohsiung University of Science and Technology Kaohsiung80778 Taiwan

The present study explores the remarkable photothermal properties and potential applications exhibited by melanoidin-enriched spent coffee grounds (SCGs). However, the inherent challenge lies in the substantial particle size of SCGs, leading to rapid sedimentation within the medium and resulting in uneven heat distribution during photothermal analysis. To overcome this obstacle, acid hydrolysis was employed to liquefy the SCGs, allowing their dispersion in water and significantly enhancing their light absorption capacity. The photothermal properties of liquefied SCGs (LSCGs) were analyzed under 808-nm near-infrared (NIR) irradiation and compared with those of SCGs. Remarkably, the photothermal conversion efficiency of the LSCGs was as high as 52%, twice that of SCGs. To further explore their potential, the LSCGs were incorporated into chitosan (CS) to create homogenous and porous CS/LSCGs composites. These low-cost and environmentally friendly CS/LSCGs composites, made entirely from waste materials, demonstrated photothermal properties under NIR irradiation. Notably, they exhibited excellent performance in multiple cycles of water evaporation experiments, achieving an impressive water evaporation efficiency of nearly 90%. © 2023 The Korean Society of Industrial and engineering Chemistry

关键词： Lignocellulose

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：