检索结果-内蒙古大学图书馆

Evaluating factors influencing community readiness for post-mining environmental development strategies

Journal of Environmental Management 2024年 366卷 121823页

作者： Sutrisno, Agung Dwi Lee, Chun-Hung Suhardono, Sapta Suryawan, I Wayan Koko Department of Mining Engineering Institut Teknologi Nasional Jl. Babarsari Caturtunggal Depok Sleman Yogyakarta55281 Indonesia Department of Natural Resources and Environmental Studies College of Environmental Studies and Oceanography National Dong Hwa University Hualien97401 Taiwan Environmental Sciences Study Program Faculty of Mathematics and Natural Sciences Universitas Sebelas Maret Surakarta57126 Indonesia Department of Environmental Engineering Faculty of Infrastructure Planning Universitas Pertamina Jalan Sinabung II Terusan Simprug Jakarta12220 Indonesia

This research delves into the complex factors that affect how ready a community is to embrace new environmental development strategies, which could significantly change the region's social and economic fabric. Using a structured questionnaire, exploratory factor analysis and logistic regression analysis, the study assesses how corporate practices in resource management, environmental governance, efforts to enhance community capabilities, and various demographic factors influence the community's willingness to adapt to change. Despite its intentions to benefit both the mining operations and the community, corporate resource management appears to have a paradoxical impact on the community's willingness to pursue new environmental paths. This negative impact can be attributed to the dependency it creates. Effective corporate resource management can lead to a community becoming heavily reliant on the stability and benefits provided by the mining company. This dependency fosters a sense of security and satisfaction with the status quo, making community members less inclined to explore or support new and potentially disruptive environmental strategies. The stability provided by the mine's resource management practices may inadvertently anchor the community to existing economic structures, reducing their impetus to seek alternative livelihoods or adapt to new socioeconomic conditions. However, it is essential to consider the limitations of this finding. One limitation is the potential bias in community perceptions, where immediate benefits from corporate resource management overshadow long-term considerations for sustainable development. Additionally, the context-specific nature of this study means that these findings may not be universally applicable to all mining communities. © 2024 Elsevier Ltd

关键词： Mining

来源：评论

学校读者我要写书评

暂无评论

Feasible tar cleaning method of producer gas from palm kernel shell and mahogany fruit shell gasification

引用

Materials Today: Proceedings 2022年 63卷 S237-S243页

作者： Pranolo, Sunu Herwi Waluyo, Joko Paryanto Susanti, Ari Diana Permana, Rizky Bagas Erwanda, Irvan Delayaski, Nuzila Alhaq, A'laa 'Izzuddin Putro, Firman Asto Chemical Engineering Study Program Faculty of Engineering Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta57126 Indonesia Chemical Engineering Diploma 3 Vocational School Universitas Sebelas Maret Jl. Kolonel Sutarto 150K Surakarta57126 Indonesia

Palm kernel shells and mahogany fruit shells are technically possible to be converted into producer gas by means of air gasification process for several purposes, such as fuel gas, liquid fuels, or chemicals processes after specific treatments. Tar as the most significant impurity in the producer gas should be minimized to prevent blockage or chocking in the downstream flow of the system and to produce high purity gas. This research examines producer gas cleaning system which consists of scrubber, elutriator pipe, and shell-and-tube heat exchanger to produce low tar content producer gas in a fixed-bed gasifier using both feedstocks. This system is coupled with a fixed-bed gasifier using air as gasifying agent at feedstock capacity of 25 kg/h. It is found that gasification of palm kernel shell produced more tar at 92.67 ppm compared with mahogany fruit shell at 26.87 ppm. Furthermore, this system demonstrated high performance in reducing tar content in producer gas up to value of 8.67 ppm and 10.00 ppm for palm kernel shell and mahogany fruit shell gasification respectively. © 2022

关键词： Fruits

来源：评论

学校读者我要写书评

暂无评论

The behavior of cold-formed steel in trusses for withstand earthquake

引用

AIP Conference Proceedings 2024年第1期2838卷

作者： Reinhard Hermawan Lasut Henki Wibowo Ashadi Magister Program of Civil Engineering Faculty of Engineering Universitas Indonesia Depok Jawa Barat Indonesia 16424 Lecturer at Civil Engineering Faculty of Engineering Universitas Indonesia Depok Jawa Barat Indonesia 16424

The use of steel in the construction sector in Indonesia requires engineers and practitioners to develop efficient construction technology. One of the steels widely used is cold-formed steel (CSF). Cold-formed steel material is more often used for roof trusses or trusses. The failure of the roof truss structure, the cause is often errors in the calculation analysis, and the cross-section is bent, especially the upper and lower rods installed continuously. The vertical bar spacing affects the buckling length that carries the compressive load in the truss structure. If the buckling size is too long, local buckling will occur, which causes problems in the strength of the frame so that structural failure can *** modeling analysis uses a truss structure with a truss configuration, shortened buckling length, and modeling angle. The frame model uses parallel trusses 10 meters in length. Shorten the buckling length with L/3 and L/4 spans with vertical bar height 0.5m and 3m. The angles used in the model analysis are 15° and 20°. The cross-sectional shapeand configuration of the truss must be appropriately calculated so that the truss can withstand the loads acting on the structure. The analysis results with a bending length of L/4 than L/3 can reduce the deflection and internal forces in the truss.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Health risk assessment of soil contamination with heavy metals in a child care center co-located in vicinity to small scale industrial area: Case study of Thailand

引用

Case Studies in Chemical and Environmental engineering 2024年 9卷

作者： Simatupang, Cathleen Ariella Santhaweesuk, Kanitthika Strezov, Vladimir Pongkiatkul, Prapat Boontanon, Narin Jindal, Ranjna Boontanon, Suwanna Kitpati Graduate Program in Environmental and Water Resources Engineering Department of Civil and Environmental Engineering Faculty of Engineering Mahidol University Nakhon Pathom 73170 Thailand School of Natural Sciences Faculty of Science and Engineering Macquarie University 2109 NSW Australia Department of Environmental Engineering King Mongkut's University of Technology Thonburi Bangkok 10800 Thailand Faculty of Environment and Resource Studies Mahidol University Nakhon Pathom 73170 Thailand Environmental Engineering and Management Program Department of Energy Environment and Climate Change School of Environment and Resources Development Asian Institute of Technology Pathumthani 12120 Thailand Graduate School of Global Environmental Studies Kyoto University Yoshida Sakyo-Ku Kyoto 606-8501 Japan

Environmental impacts of small scale industries are still not well investigated, especially for estates where multiple small scale industries are clustered causing cumulative effects potentially impacting most vulnerable groups. This study aimed to investigate the concentrations of heavy metals (Mn, Fe, Ni, Cu, Pb, Al, Zn, and Cr) and the metalloid (As) in surface soils near the intensely active small-scale industrial area in Thailand, assess the contamination levels in the co-located child care center, and estimate potential human health risks from exposure to the heavy metals. Surface soil heavy metal(loid) elements were evaluated across a background area, area near main roads, a small-scale industrial area, and a child care centre. The concentrations of Al were found be the highest at all investigation sites, with the most elevated concentrations observed in the small-scale industrial area. The concentration of Pb in the industrial area reached 1176 mg/kg, exceeding the national standard and acceptable limit. Moreover, the contamination level for Cu, Pb, and Zn in the industrial area imply a considerable risk with enrichment factor EF > 40, and geo-accumulation index Igeo ≥5. Heavy metal levels (Ni, Cu, Pb) in the soil near the road and the child care center were similar, suggesting shared contamination sources. Conversely, Al, Zn, As, and Cr in the child care center had slightly higher concentrations than near the road but lower than the small-scale industrial area, indicating potential industrial influence on metal levels within the child care center. The principal component analysis showed Mn and Fe distributed in the background, while As, Pb, Ni, Cu, Al, Zn, and Cr accumulated in the small-scale industrial area. The findings indicate that small-scale industrial activities contribute to elevated levels of heavy metals in the soil, particularly within the child care center, posing significant ingestion risks, especially for children (HI > 1). Implementing conta

关键词： Children Contamination sources Environmental impact PCA Surface soil

来源：评论

学校读者我要写书评

暂无评论

Sustainable flexible pavement base stabilization with pozzolanic materials incorporating sodium hydroxide and asphalt emulsion

Transportation Engineering

引用

Transportation engineering 2021年 6卷

作者： Bualuang, Thanon Jitsangiam, Peerapong Tanchaisawat, Tawatchai Graduate Program in Civil Engineering Department of Civil Engineering Faculty of Engineering Chiang Mai University Huay Kaew Road MuangChiang Mai50200 Thailand Center of Excellence in Natural Disaster Management Department of Civil Engineering Faculty of Engineering Chiang Mai University Huay Kaew Road MuangChiang Mai50200 Thailand

For the sustainable viewpoint in the road construction sector, fly ash (FA) as one of the potential industrial by-products for recycling would be on finding its alternative utilization. In this study, FA and hydrated lime (HL) as the pozzolanic materials were improved using the sodium hydroxide in a solid form (NaOH) and the asphalt emulsion (AE) for being a road base stabilizer. Effects of additional NaOH and AE into the FA-HL binder were investigated through mechanical properties, structural formation, and durability. study results revealed that using NaOH increased the compressive strength but decreased the workability of the FA-HL binder. Since NaOH stimulated the FA-HL binder to fabricate cementitious products as N-A-S-H gels. The addition of AE in the FA-HL binder with NaOH could prolong the hardening process, indicating the retardation on the structural formation of pozzolanic reaction and polymerization. Besides, NaOH and AE as the FA-HL treated base material additives had an insignificant effect on the compaction characteristic. Using NaOH and AE into the FA-HL treated base material could develop proficient bearing strength and durability in the wet-dry deterioration. According to these experiments, adding NaOH and AE into the FA-HL binder for road base stabilization can reach the minimum criteria of the flexible pavement base. Eventually, the pozzolanic materials essentially require the extra additives for a new road base stabilization based on eco-friendliness. © 2021 The Author(s)

关键词： Stabilization

来源：评论

学校读者我要写书评

暂无评论

Methylcellulose-AgNPs-oat hydrogel as a wound dressing for burn wound

引用

AIP Conference Proceedings 2024年第1期3047卷

作者： Prihartini Widiyanti Firza Siswanto Biomedical Engineering Study Program Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia Physics Study Program Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia

Based on the RISKESDAS in 2018 the prevalence of burns reached 1,3% of the total population of Indonesia and basen on WHO there were 195,000 cases of deaths due to burns every year. One clinical treatment for burns is to use hydrogels as wound dressing. Hydrogel wound dressing functions to absorb wound exudates, by keeping the wound moist. This study was conducted to determine the effect of adding oat extrac to the hydrogel methylcellulose-AgNPs. Hydrogel methylcellulose-AgNPs are mixed with oat extract, with an oat extract concentration of 0 wt%, 0.5 wt%, 1 wt%, 1.5 wt%, and 2 wt%. The characterization carried out included XRD crystallinity test and SEM morphology test for the characterization of AgNPs, and it was found that 10.2% of AgNPs were formed and evenly distributed AgNPs. In addition, characterization of hydrogel wound dressing was carried out which included antibacterial test, cytotoxicity test, swelling test, and antioxidant test. From the results of the analysis it was found that the best variable methylcellulose-AgNPs-oat hydrogel was a sample with an oat concentration of 2 wt%, which had a clear zone diameter of 10.35 mm and was sensitive to bacteria, had a% viability of 2.206%, a swelling value of 71, 7%, and has an antioxidant value of 95%. It shows that the addition of oats can increase the cell viability because oats are antioxidants, so they can counteract the free radicals produced by AgNPs, but the addition of oats increases sensitivity to bacteria because oats also function as antibacterial. Samples with oats of 2 wt% have the best characterization even though they have not met the standard wound dressing.

关键词：

来源：评论

学校读者我要写书评

暂无评论

On the influence of silica nanoparticles for enhanced oil recovery (EOR)

引用

AIP Conference Proceedings 2024年第1期3073卷

作者： Sarah Dampang Muhammad Mufti Azis Ahmad Tawfiequrrahman Yuliansyah Suryo Purwono Department of Chemical Engineering Faculty of Engineering Universitas Gadjah Mada Yogyakarta 55281 Indonesia Study Program of Chemical Engineering Faculty of Engineering Universitas Singaperbangsa Karawang 41361 Jawa Barat Indonesia Professional Engineering Program Faculty of Engineering Universitas Gadjah Mada Yogyakarta 55281 Indonesia

Utilization of nanoparticles in oil and gas sector has gained a significant interest. Silica nanoparticles is often considered as a promising chemical to improve the Enhanced Oil Recovery (EOR) process. The objective of this work was to provide a mini review to address the effect of silica nanoparticles addition in a chemical EOR. In this work, we have reviewed the influence of nanoparticles to reduce Interfacial Surface tension (IFT), to alter wettability, to reduce oil viscosity, to improve fluid rheology, and to alter structural disjoining pressure. We expect that this review may provide a useful guidelines for the development of silica nanoparticles in Indonesia.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Landslide disaster risk identification on national roads in West Java Province

引用

AIP Conference Proceedings 2024年第1期2838卷

作者： Christman Ayomi Dita Rarasati Civil Engineering Program Faculty of Civil Engineering University of Indonesia Jalan Margonda Raya Depok Jawa Barat 1624 Indonesia

Geographical and geological areas in Indonesia are prone to disasters. West Java Province itself is in an area with a moderate to a high level of disaster risk in 2015 – 2018. Based on recorded data, the highest type of disaster in West Java Province was landslides as many as 3,232 times in 2020. The improper maintenance treatment taken after the disaster is often felt rushed so that the distresses will occur again at the same spot. Hence re-treatment is needed, which requires higher construction costs. For this reason, it is necessary to conduct a study of disaster risk. The research focuses on the natural disaster risk of landslides that impact roads and bridges on national highways in West Java Province. By obtaining disaster-prone locations, it is hoped that appropriate technical recommendations can be given to reduce the impact of disasters. The research method used is conducting a literature study, collecting primary data through field surveys, and collecting secondary data through relevant agencies. The risk index analysis was carried out using the Analysis Hierarchy Process (AHP) method. The weighting of factors and indicators was obtained based on survey results from expert respondents. Of the five factors analyzed, it was found that the hazard factor was the most dominant in the risk of landslides. The risk level of landslides on national roads in West Java Province is clarified into three classes, which 61 sections (63%) are in the low-risk group, 27 sections (27%) are in the moderate risk level, and nine sections (9%) are in the high-risk level.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Multi-Stakeholder Collaboration for the Provision of Public Open Space (Case of Taman Indonesia Kaya, Semarang) 1

Multi-Stakeholder Collaboration for the Provision of Public ...

引用

1st International Conference on Urban Design and Planning, ICUDEP 2019

作者： Aswad, W.O.S.J. Damayanti, M. Urban and Regional Planning Study Program Faculty of Engineering Diponegoro University Semarang Indonesia Department Urban Dan Regional Planning Faculty of Engineering Diponegoro University Semarang Indonesia

Budget constraints are a common problem in Indonesian cities to provide attractive and attractive public open space. There is a need for cooperation between all parties, not only the government but also the private sector and society. These conditions encourage the Semarang City government to increase stakeholder collaboration in the provision of public green open space, one of which is in the development of Taman Indonesia Kaya. The purpose of this study is to examine the model of the collaboration process, the involvement and role of each stakeholder and the sustainability of collaboration. This study uses descriptive qualitative methods, data collection using observations and interviews on each stakeholder element, namely government, private and public. The results show that the collaboration process model starts from face to face dialogue, trust building, commitment to the process, shared understanding between stakeholders until the realization of attractive and attractive public green open space development. However, the sustainability of collaboration is a big challenge going forward. The structure of cooperation is not yet supported by clear institutional design, so that government courage and innovation are needed to determine the form of structural governance in collaborative management of public green open space. Collaboration should be carried out over the long term and use a networked administrative organization model so that the network that is built is in an administrative entity. The model is expected to create efficiency management and support the sustainability of collaboration. © Published under licence by IOP Publishing Ltd.

关键词： Sustainable development

来源：评论

学校读者我要写书评

暂无评论

Technology Roadmap for Flexible Sensors

引用

ACS NANO 2023年第6期17卷 5211-5295页

作者： Luo, Yifei Abidian, Mohammad Reza Ahn, Jong-Hyun Akinwande, Deji Andrews, Anne M. Antonietti, Markus Bao, Zhenan Berggren, Magnus Berkey, Christopher A. Bettinger, Christopher John Chen, Jun Chen, Peng Cheng, Wenlong Cheng, Xu Choi, Seon-Jin Chortos, Alex Dagdeviren, Canan Dauskardt, Reinhold H. Di, Chong-an Dickey, Michael D. Duan, Xiangfeng Facchetti, Antonio Fan, Zhiyong Fang, Yin Feng, Jianyou Feng, Xue Gao, Huajian Gao, Wei Gong, Xiwen Guo, Chuan Fei Guo, Xiaojun Hartel, Martin C. He, Zihan Ho, John S. Hu, Youfan Huang, Qiyao Huang, Yu Huo, Fengwei Hussain, Muhammad M. Javey, Ali Jeong, Unyong Jiang, Chen Jiang, Xingyu Kang, Jiheong Karnaushenko, Daniil Khademhosseini, Ali Kim, Dae-Hyeong Kim, Il-Doo Kireev, Dmitry Kong, Lingxuan Lee, Chengkuo Lee, Nae-Eung Lee, Pooi See Lee, Tae-Woo Li, Fengyu Li, Jinxing Liang, Cuiyuan Lim, Chwee Teck Lin, Yuanjing Lipomi, Darren J. Liu, Jia Liu, Kai Liu, Nan Liu, Ren Liu, Yuxin Liu, Yuxuan Liu, Zhiyuan Liu, Zhuangjian Loh, Xian Jun Lu, Nanshu Lv, Zhisheng Magdassi, Shlomo Malliaras, George G. Matsuhisa, Naoji Nathan, Arokia Niu, Simiao Pan, Jieming Pang, Changhyun Pei, Qibing Peng, Huisheng Qi, Dianpeng Ren, Huaying Rogers, John A. Rowe, Aaron Schmidt, Oliver G. Sekitani, Tsuyoshi Seo, Dae-Gyo Shen, Guozhen Sheng, Xing Shi, Qiongfeng Someya, Takao Song, Yanlin Stavrinidou, Eleni Su, Meng Sun, Xuemei Takei, Kuniharu Tao, Xiao-Ming Tee, Benjamin C. K. Thean, Aaron Voon-Yew Trung, Tran Quang Wan, Changjin Wang, Huiliang Wang, Joseph Wang, Ming Wang, Sihong Wang, Ting Wang, Zhong Lin Weiss, Paul S. Wen, Hanqi Xu, Sheng Xu, Tailin Yan, Hongping Yan, Xuzhou Yang, Hui Yang, Le Yang, Shuaijian Yin, Lan Yu, Cunjiang Yu, Guihua Yu, Jing Yu, Shu-Hong Yu, Xinge Zamburg, Evgeny Zhang, Haixia Zhang, Xiangyu Zhang, Xiaosheng Zhang, Xueji Zhang, Yihui Zhang, Yu Zhao, Siyuan Zhao, Xuanhe Zheng, Yuanjin Zheng, Yu-Qing Zheng, Zijian Zhou, Tao Zhu, Bowen Zhu, Ming Zhu, Rong Zhu, Yangzhi Zhu, Yong Zou, Guijin Chen, Xiaodong 08-03 Innovis Singapore 138634 Republic of Singapore Innovative Centre for Flexible Devices (iFLEX) School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore Department of Biomedical Engineering University of Houston Houston Texas 77024 United States School of Electrical and Electronic Engineering Yonsei University Seoul 03722 Republic of Korea Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78712 United States Microelectronics Research Center The University of Texas at Austin Austin Texas 78758 United States Department of Chemistry and Biochemistry California NanoSystems Institute and Department of Psychiatry and Biobehavioral Sciences Semel Institute for Neuroscience and Human Behavior and Hatos Center for Neuropharmacology University of California Los Angeles Los Angeles California 90095 United States Colloid Chemistry Department Max Planck Institute of Colloids and Interfaces 14476 Potsdam Germany Department of Chemical Engineering Stanford University Stanford California 94305 United States Laboratory of Organic Electronics Department of Science and Technology Campus Norrköping Linköping University 83 Linköping Sweden Wallenberg Initiative Materials Science for Sustainability (WISE) and Wallenberg Wood Science Center (WWSC) SE-100 44 Stockholm Sweden Department of Materials Science and Engineering Stanford University Stanford California 94301 United States Department of Biomedical Engineering and Department of Materials Science and Engineering Carnegie Mellon University Pittsburgh Pennsylvania 15213 United States Department of Bioengineering University of California Los Angeles Los Angeles California 90095 United States School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore 637457 Singapore Nanobionics Group Department of Chemical and Biological Engineering Monash University Clayton Australia 3800 Monash

Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitations of conventional rigid counterparts. Despite rapid advancement in bench-side research over the last decade, the market adoption of flexible sensors remains limited. To ease and to expedite their deployment, here, we identify bottlenecks hindering the maturation of flexible sensors and propose promising solutions. We first analyze continued...challenges in achieving satisfactory sensing performance for real-world applications and then summarize issues in compatible sensor-biology interfaces, followed by brief discussions on powering and connecting sensor networks. Issues en route to commercialization and for sustainable growth of the sector are also analyzed, highlighting environmental concerns and emphasizing nontechnical issues such as business, regulatory, and ethical considerations. Additionally, we look at future intelligent flexible sensors. In proposing a comprehensive roadmap, we hope to steer research efforts towards common goals and to guide coordinated development strategies from disparate communities. Through such collaborative

关键词： soft materials mechanics engineering flexible electronics conformable sensors bioelectronics human-machine interfaces body area sensor networks technology translation sustainable electronics

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：