检索结果-内蒙古大学图书馆

Evaluating the effect of roof type variations on the quality of rainwater runoff for rainwater harvesting development

引用

AIP Conference Proceedings 2020年第1期2230卷

作者： Nike Dwi Wahyuningsih Nyoman Suwartha Djoko M. Hartono Mochamad Adhiraga Pratama 1Environmental Engineering Study Program Department of Civil Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok Depok 16424 Indonesia

Rainwater harvesting is the local collection of rainwater and its storage using various technologies, with the aim of using it to meet water needs in human activities. The factors that affect the quality of rainwater runoff in the rainwater harvesting system are the rainwater harvesting components and external factors, such as climatological conditions that include the intensity of rainfall and dry days. This study aims to analyze the quality of rainwater runoff from various types of roof, the influencing factors, and the potential utilization of rainwater runoff in residential–industrial areas. Three types of full-scale roofs—asbestos, clay tile, and galvanized zinc—were observed. Rainwater runoff was sampled from each type of roof using a composite method. The Mann–Whitney test and Spearman's correlation coefficient were used to determine the significance of the factors that influenced the quality of the rainwater runoff and the relationships of each factor to the quality of rainwater runoff, respectively. The results revealed that internal factors, such as type of roofing material and slope of the roof, have a significant influence on the quality of rainwater runoff, while a high intensity of rainfall and long dry periods, as external factors, caused higher concentrations of contaminants in rainwater runoff. Though some parameters of rainwater runoff met quality standards, it is recommended that a simple water treatment unit be installed to ensure clean water for sanitation needs.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Analysis of erosion and sedimentation in predicting the life time of the Cieunteung Retention Basin

引用

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

作者： Rieva Septianita Rakhmat Yusuf Mardiani Civil Engineering Undergraduate Study Program Education University of Indonesia Bandung 40154 Indonesia Civil Engineering Study Program Education University of Indonesia Bandung 40154 Indonesia

The high rates of erosion and sedimentation as the impacts of changes in land use cause the problem of sedimentation. The aim of this research is to analyse erosion and sedimentation in the Upper Citarum sub-basin, which will impact the life time of the Cieunteung retention basin. The SWAT model was used to simulate the hydrological process and erosion mechanism by using the formula of MUSLE. Based on the results of simulation data, the highest average erosion equalled 1, 094 tons/ha/year in 2013 while the lowest average erosion equalled 71.16 tons/ha/year in 2009. The results of SWAT model calibration in 2008-2018 were R2 = 0.89 and NS = 0.95, which means the model performance is categorized as very good. The simulation results showed the anticipative indicators of watershed disaster, as the erosion hazard index in terms of land cover and the coefficient of river regime in terms of water availability, have a very close relationship and positive correlation with the average of R2 = 0.8. The incoming sediment to the Cieunteung retention basin is 105, 418 ton/year or 72, 551.961 m3/year. By using sediment trap efficiency with a value of 4.37%, this research estimated that the dead storage capacity of 113, 670.3 m3 will be filled with sediments in 35.87 years. Furthermore, the long-term retention basin conservation effort by land terracing can reduce total sediments by 22% to 81, 948 tons in 2018, and thus the life time of the Cieunteung retention basin becomes 46.15 years.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Corrigendum to "Evidence of the dominant role of particle size in controlling the dynamic adsorption breakthrough behavior of gaseous benzene in a microporous carbon bed system" [Chem. Eng. J. 427 (2022) 130977] (Chemical engineering Journal (2022) 427, (S1385894721025614), (10.1016/***.2021.130977))

引用

Chemical engineering Journal 2025年 516卷

作者： Ha, Seung-Ho Younis, Sherif A. Vikrant, Kumar Szulejko, Jan E. Kim, Ki-Hyun Department of Civil and Environmental Engineering Hanyang University 222 Wangsimni-Ro Seoul04763 Korea Republic of Analysis and Evaluation Department Egyptian Petroleum Research Institute Nasr City Cairo11727 Egypt Nanobiotechnology Program Faculty of Nanotechnology for Postgraduate Studies Cairo University Sheikh Zayed Branch Campus Sheikh Zayed City PO Giza12588 Egypt

The authors regret the discrepancies and inaccuracies in the numbering and captions of several figures in the published article. This corrigendum aims to address and correct these issues. The misaligned numbers are first found in Figs. 3 to 6 to result in a mismatch with their descriptions in the text. Additionally, Fig. 7 is not shown in the final published version, although it was provided by the authors in the original manuscript accepted by the Chemical engineering Journal (Manuscript Number: CEJ-D-21-06678_R1). These errors were discovered during the evaluation of the paper for citation. The absence of Fig. 7 and the misalignment in Figs. 3, 4, 5, and 6 can significantly disrupt the logical flow of data presentation. In light of these issues, a meticulous correction process was undertaken to ensure the accurate presentation of our research findings. The corrections are detailed below, aimed at restoring the scientific rigor and coherence of the article. The authors would like to apologise for any inconvenience caused. [1] Corrigendum for the misaligned captions of Figs. 3, 4, 5, and 6". Due to a misalignment in figure captions in the published article, the caption for the deconvoluted XPS spectra in Fig. 3 was incorrectly replaced with that of Fig. 4. This caused a sequential shift in subsequent captions and the omission of Fig. 7 in the final version, as listed below in Table 1. [2] Adjustment of the related text To correct this sequential misalignment issue, the following corrections for the captions of Figs. 3, 4, 5, and 6 should be considered. Based on the above corrective action in Figs. 3 through 7 captions. Fig. 3, which pertains to XPS analysis, should be cited in the last paragraph of Section 3.1, "Physicochemical Characteristics of AC." The inaccurately cited Figs. 3 and 4 in Section 3.2, "Adsorption Breakthrough (BT) Analysis" should be replaced with the correct citation of Figs. 4 and 5, respectively (according to Table 1 above). Additionally, the i

关键词：

来源：评论

学校读者我要写书评

暂无评论

Vibration problem due to railway loading

引用

IOP Conference Series: Earth and Environmental Science 2021年第1期739卷

作者： F Alami L Afriani Faculty of Engineering University of Lampung Bandar Lampung Indonesia Postgraduated Student of Study Program of Environmental Science University of Lampung Bandar Lampung Indonesia

Train is one of transportation mode is increasingly polular in Indonesia nowdays, although in developed countries this transportation has long been a very advanced mode of mass transportation. Problems due to railroad tracks adjacent to densely populated settlements cannot be avoided. Problems such as noise levels can interfere with the health and comfort of the environment, vibrations in the surrounding environment due to passing trains cause some damage to civilian buildings such as residents' houses and high rise buildings as well. This field study shows the potential problem due to mass train loading (Babaranjang) in Bandar Lampung.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The Indonesia high-speed train traveler preference analysis (case study: Jakarta-Bandung)

引用

AIP Conference Proceedings 2020年第1期2227卷

作者： Tri Tjahjono Andyka Kusuma Nuryani Tinumbia Ahmad Septiawan 1Department of Civil Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok Indonesia 2Study Program of Civil Engineering Faculty of Engineering Universitas Pancasila Serengseng Sawah South Jakarta Indonesia

This study assesses the potential passenger preference of the High-Speed Train infrastructure, which connects Jakarta – Bandung. The study aims to understand the potential HST passenger travel characteristics, which is important in predicting the HST demand. This study conducts a roadside interview using a stated preference methodology for several transport modes passenger serving Jakarta-Bandung, namely; private vehicle, train, intercity bus and paratransit. Moreover, the study extends in observing the short trip passenger preference. The analysis defines that the preferred fares are 300.000 (20 USD), which is increased compared to 2016 studies. The forecasting results of the demand for fast trains based on the probability of modal transfers amounted to 54,764 passengers per day with details of the number of trips Jakarta-Bandung was 27,005 while the Bandung-Jakarta trip was 27,759. The results for a significant difference between the total daily trips of Bandung-Jakarta and Jakarta-Bandung have already been seen since the initial statistical analysis where according to survey data, people who travelled Bandung-Jakarta were more elastic compared to Jakarta-Bandung trips. This finding shows clearly that the passenger traffic vehicle capitulates with the current road traffic highway conditions. Note that they are more uncertainty in condition on road traffic in comparison to the railway passenger. In more details, sensitivity analysis indicates that the passenger from Jakarta is more comfortable to shift using the HST compared to the passenger from Bandung. There is an indication that the Jakarta people have a higher value of time as they have a higher preference to shift toward faster transport mode compared to Bandung people. This information is also useful for operation policy, including ticketing differentiation based on the travel time period and travel origin-destination.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The effect of using asbuton with used waste diesel oil on the stability of the porus asphalt mix with hot mix cold laid method

引用

IOP Conference Series: Materials Science and engineering 2021年第1期1088卷

作者： Sri Gusty Erniati Yosis Infrastructure and Environmental Engineering Postgraduate Program Fajar University Makassar Indonesia. Civil Engineering Engineering Faculty Fajar University Makassar Indonesia Postgraduate Student Infrastructure and Environmental Engineering Fajar University Makassar Indonesia.

The abundant availability of Asbuton in Indonesia should be proportional to the percentage of its use, however, in the implementation of pavement works, it is still dominated by petroleum asphalt, the price of which tends to be higher than the Asbuton. If you look at the elements in Asbuton, namely minerals and bitumen, it should be superior to petroleum asphalt. One of the factors where the use of Asbuton is not optimal is that the stability value of the mixture using Asbuton is still low compared to the mixture using petroleum asphalt. So this research aims to analyze the stability value of the porous asphalt mixture using Asbuton and waste oil as a rejuvenating agent with hot mix cold laid method. The research method was carried out by carrying out test objects with variations in Asbuton content of 5%, 5.5% and 6% with variations in fuel wastage rate of 0%, 2%, 3% and 4%. The total number of test objects is 36 samples. Then the Marshall test was tested to determine its stability value. The results obtained based on the test results are the highest average stability value at the variation of the levels of Asbuton 6%, 5.5% and 5% respectively 1295.3 Kg with 4% waste oil content; 1238 Kg with 3% used oil; and 773 kg with a waste oil content of 2%. Adding the Asbuton content increases the stability value; however, the level of used oil in the best results still varies. It can therefore be concluded that the highest stability value of a hollow asphalt mixture using an Asbuton content of 6% and a waste oil content of 4% with a value of 1295.3 Kg, meets the specification of the Road engineering Association of Malaysia (REAM).

关键词：

来源：评论

学校读者我要写书评

暂无评论

Influence of bioadmixture dosage on mechanical and self-healing properties of cement paste containing incinerated sugarcane press mud

引用

Cleaner engineering and Technology 2025年 27卷

作者： Zerlinda Mara Ditta Peerawat Laohana Nantawat Tanapongpisit Wittawat Saenrang Sophon Boonlue Darunee Kaewpikul Vanchai Sata Prinya Chindaprasirt Jindarat Ekprasert Bioscience and Bioinnovation for Sustainability Program Department of Integrated Science Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand School of Physics Institute of Science Suranaree University of Technology Nakhon Ratchasima 30000 Thailand Center of Excellence in Advanced Functional Materials School of Physics Suranaree University of Technology Nakhon Ratchasima 30000 Thailand Department of Microbiology Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand Sustainable Infrastructure Research and Development Center Department of Civil Engineering Faculty of Engineering Khon Kaen University Khon Kaen 40002 Thailand Academy of Science Royal Society of Thailand Dusit Bangkok Thailand

The cement industry is one of the major sources of greenhouse gas. Replacing cement with alternative materials such as incinerated sugarcane press mud (IWFC) is promising for reducing CO 2 emissions, but the quality of materials is diminished. This research then aims to investigate the influence of bioadmixture, calcifying bacteria Lysinibacillus sp. WH, at three bacterial dosage concentrations (10 8 , 10 9 , and 10 10 CFU/mL) on microstructural development and mechanical enhancement of Portland cement paste and cement pastes containing varied ratios of IWFC. The results show that the bacterial concentration of 10 10 CFU/mL effectively enhances mechanical characteristics of IWFC-cement pastes, while lower concentration is more favorable to Portland cement paste (P). Here, we are the first to provide evidence that the properties of cement paste composites comparable to Portland cement paste can be achieved even when the IWFC is replaced with cement as high as 20 % by weight together with the incorporation of calcifying bacteria. Moreover, IWFC-cement pastes with high bacterial concentration of 10 10 CFU/mL exhibit the fastest self-healing ability within two weeks. The regained strength after healing is >85 % in all composite specimens. Overall, this work provides an effective method to develop durable and eco-friendly cement.

关键词： Biocement Sugar industry waste CaCO 3 -Precipitating bacteria Self-healing ability Calcium carbonate

来源：评论

学校读者我要写书评

暂无评论

Gender Mainstreaming in Drought Disaster Risk Reduction

引用

Journal of Physics: Conference Series 2021年第1期1811卷

作者： Rr M I Retno Susilorini Rusnianti Rambu Lika Sriyana Lintang Jata Angghita Julio Ignatius Sinaga Department of Infrastructure and Environmental Engineering Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Master Program of Environmental and Urban Studies Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Department of Civil Engineering Faculty of Engineering Diponegoro University Semarang

Climate change has affected the whole world and caused disasters, include drought. Since Tana Mbanas village in Central Sumba District is the driest remote area in eastern region of Indonesia, gender inequality has affected in daily life of people in the village instead of other social and environmental problems. This research aimed to evaluate how gender mainstreaming implemented in drought disaster risk reduction in Tana Mbanas village in Central Sumba Regency, East Nusa Tenggara Province. The result of the research is expected to become a mirror that reflects Sumba island gender and development issues. The research took place in Tana Mbanas village in Central Sumba Regency, East Nusa Tenggara Province, and conducted by qualitative method with purposive data sampling. The steps taken in the research were observation, data collecting by questionnaire and in-depth interview to respondents, and literature review. It was reported that Tana Mbanas village people has given water management assistance by village fund, conducting water management counselling, saving water, and harvesting rain systems in every household. This research meets conclusions that: (1) Several programs and planned actions in water supply system and infrastructure development have become initiatives of government agencies of village authorities, BPBD and Public Work Agency of Central Sumba Regency; (2) People demonstrated vulnerability to drought as well as lack of water supply and also water resources; (3) Strong efforts should be conducted to educate people and increase women capacity in coping issues of poverty, drought, and lack of water supply; and (4) Government agencies and other private institutions have to build women capacity as their participation in enhancing gender equality and mainstreaming gender.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The development of the model of influence of sociodemographic characteristics and disaster experience toward household preparedness for facing landslide in Bogor regency

引用

IOP Conference Series: Earth and Environmental Science 2021年第1期708卷

作者： P D Saputra C Rahmawati P Karuniakhalida K S H Purnomo E Larosa Military Building Construction Engineering Study Program Faculty of Military Engineering Indonesia Defense University Bogor Indonesia Industrial Engineering Department Faculty of Industrial Technology Universitas Dirgantara Marsekal Suryadarma Jakarta Indonesia Mathematic for Education Program Faculty of Teacher Training and Education Universitas Riau Riau Indonesia Master of Management Program Universitas Teknologi Yogyakarta Yogyakarta Indonesia Mechanical Engineering Education Faculty of Teacher Training and Education Universitas Negeri Yogyakarta Yogyakarta Indonesia

Indonesia has a high tendency of having landslides. Bogor is one of regency which is very prone to landslide disaster due to high rainfall. Landslides are a very dangerous threat to public safety. The preparedness can build disaster resilient communities that can support the national resilience. Sociodemographic characteristic and disaster experience are determining factors for the success of preparedness. The purpose of this research is to develop a model of the influence of sociodemographic characteristics and disaster experience toward household preparedness for facing landslide. This research is done in Cibadak Village, Sukamakmur Bogor. This research uses a quantitative approach with 100 sample of households. Multiple linear regression technique is used for analyzing the model. The results of the research showed that household preparedness is significantly influenced by sociodemographic characteristics which is education (p = 0.000), meanwhile age, income and the number of family member don't significantly influence. Beside that the household preparedness is also greatly influenced by disaster experience too (p = 0.000). Education influence on household preparedness for facing landslide as much as 38.81% and the disaster experience is 52.85%.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Seismic risk for Sumbawa Island based on seismicity and peak ground acceleration

引用

IOP Conference Series: Earth and Environmental Science 2020年第1期413卷

作者： C B Santoso D S Agustawijaya Postgraduate Study Program in Civil Engineering Universitas Mataram Indonesia Department of Civil Engineering Universitas Mataram Indonesia

Sumbawa Island, West Nusa Tenggara Province, is one of the regions in Indonesia that has a relatively moderate to high seismic activity because the area is flanked by two earthquake sources. These two sources cause an area prone to earthquake hazards. This research aims to determine the seismic risk in Sumbawa Island based on seismicity and Peak Ground Acceleration (PGA) value. The results of Gutenberg-Richter parameters are a-value 7.43 and b-value 0.80 that indicated medium to high categories of seismicity. The PGA value of earthquake events is between 0.001g and 0.203g. The result of this analysis is shown within the probabilistic seismic hazard curve that indicates seismic risk level at Sumbawa Island.

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：