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Spatio-temporal changes in the Rishikesh agglomeration, Uttarakhand, India 印度北阿坎德邦瑞诗凯什城市群的时空变化
Q4 Engineering Pub Date : 2023-07-15 DOI: 10.25303/1608da055066
H. Naithani, Vikram Sharma, S Kumar, S. Tiwari, Ibrar Liaqat, Parvendra Kumar, T. Jayal
Rishikesh is one of the fastest growing urban agglomerations in Uttarakhand state of India. Being a religious and historical city, it attracts millions of tourists across the globe, hence a huge pressure is created over the limited land space. To tackle the pressure of tourists and satisfying the increasing demand of the space resulted into the expansion of urban area of Rishikesh. The study deals with the spatio-temporal changes occurred in the city of Rishikesh. The urban land use and land cover changes are analysed with the help of geographic information system. The analysis of satellite data (Landsat series MSS, TM, ETM + and OLI science 1972-2020) reflects that the settlement growth was quite unplanned. The haphazard growth of city resulted into the reduction of agriculture land. Various hotspots of settlement growth were noticed in study region. The town has limitation to growth because the town is enclosed by forests and holy river Ganga. There is urgent need to check city’s carrying capacity, high concentration of settlements and to maintain the concept of sustainable development.
瑞诗凯什是印度北阿坎德邦发展最快的城市群之一。作为一个宗教和历史名城,它吸引了数百万来自世界各地的游客,因此对有限的土地空间造成了巨大的压力。为了应对游客的压力和满足日益增长的空间需求,里希凯什城市面积不断扩大。研究了瑞诗凯什市的时空变化。利用地理信息系统对城市土地利用和土地覆盖变化进行了分析。卫星数据分析(Landsat系列MSS、TM、ETM +和OLI科学1972-2020)表明,定居点的增长是无计划的。城市的无序发展导致了农业用地的减少。研究区存在不同的聚落增长热点。由于被森林和神圣的恒河包围,该镇的发展受到限制。城市承载能力、聚落集中度高、可持续发展理念等问题亟待解决。
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引用次数: 0
Integrated Coastal Vulnerability Assessment: A Study of Karnataka, India 海岸脆弱性综合评估:对印度卡纳塔克邦的研究
Q4 Engineering Pub Date : 2023-06-15 DOI: 10.25303/1607da018030
D. Naik, P. Kunte
Coastal regions are changing due to environmental pressures and anthropogenic impacts such as coastal development and planning, ultimately becoming sensitive to unpredicted natural and manmade calamities. The scientific assessment requires an understanding of the relative vulnerability of the coast across a region, and, for this purpose, vulnerability indices are often used. This study is an integrated coastal vulnerability index for the Karnataka coastline, incorporating both physical variables and socio-economic indicators. To study the overall vulnerability of a region at the taluka level using the typical physical variables characterizing coastal vulnerability e.g. historical shoreline change, rate of relative sea-level change, coastal regional elevation, coastal slope, mean tidal range, significant wave height and geomorphology. Physical indicators are then combined with the outcomes of an assessment of socio-economic vulnerability developed using population and tourist density and education as indicators like human development index (HDI), composite taluka development index (CTDI) and urban development index (UDI), resulting in a more holistic assessment of vulnerability. The resulting vulnerability map describes the taluka as most vulnerable to physical indicators and also provides information on the nature of vulnerability in terms of its physical and socio-economic components intending to inform adaptation decision-making.
由于环境压力和沿海开发和规划等人为影响,沿海地区正在发生变化,最终对无法预测的自然和人为灾害变得敏感。科学评估需要了解整个地区海岸的相对脆弱性,为此,经常使用脆弱性指数。这项研究是卡纳塔克邦海岸线的综合海岸脆弱性指数,包括物理变量和社会经济指标。利用表征海岸脆弱性的典型物理变量,如历史海岸线变化、相对海平面变化率、海岸区域海拔、海岸坡度、平均潮差、显著波高和地貌,研究塔卢卡水平的区域整体脆弱性。然后,将实物指标与社会经济脆弱性评估的结果相结合,利用人口和旅游密度以及教育作为人类发展指数、综合塔卢卡发展指数和城市发展指数等指标,对脆弱性进行更全面的评估。由此产生的脆弱性地图将塔鲁卡描述为最容易受到物理指标的影响,并从其物理和社会经济组成部分提供了关于脆弱性性质的信息,旨在为适应决策提供信息。
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引用次数: 0
Fostering Social Entrepreneurial Resilience: A Pathway towards Integrated Disaster Risk Management 培育社会创业韧性:迈向综合灾害风险管理之路
Q4 Engineering Pub Date : 2023-06-15 DOI: 10.25303/1607da050053
Vipul D Nakum, S. Divi, Apoorva Patel
Social entrepreneurship (SE) has gained recognition as a key driver of the economy significantly contributing to innovation and inclusive growth. It is increasingly seen as a practical and effective solution to address a range of physical, social, economic and environmental challenges. Its role has also been critical in groundbreaking innovations toward sustainable development. Disaster risk management (DRM) planning is crucial for building resilience in the entrepreneurial ecosystem as SEs are highly vulnerable to the impacts of disasters, particularly in absence of DRM planning. This study explores the impact of disasters on SE and argues for the need for integrating DRM approaches to enhance the resilience of SE in line with the priorities of the Sendai Framework for Disaster Risk Reduction 2015-2030. Despite India's strong performance in terms of supportive business start-up ecosystems, vulnerability to natural disasters and poor preparedness pose significant challenges to its development efforts. There is a need for greater attention to be paid to DRM planning in the SE sector in order to build resilience and ensure the long-term sustainability of SE initiatives.
社会创业(SE)已被公认为经济的关键驱动力,对创新和包容性增长做出了重大贡献。它越来越被视为应对一系列物理、社会、经济和环境挑战的切实有效的解决方案。它在实现可持续发展的突破性创新方面也发挥了关键作用。灾害风险管理(DRM)规划对于在创业生态系统中建立抵御能力至关重要,因为社会企业极易受到灾害的影响,特别是在没有DRM规划的情况下。本研究探讨了灾害对SE的影响,并认为有必要根据2015-2030年仙台减少灾害风险框架的优先事项,整合DRM方法,以提高SE的抵御能力。尽管印度在支持创业的生态系统方面表现强劲,但易受自然灾害影响和准备不足对其发展努力构成了重大挑战。有必要更加重视SE部门的DRM规划,以建立弹性并确保SE举措的长期可持续性。
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引用次数: 0
Preliminary study on Strait of Malacca Tide Wave Characteristic from AIS Data Mining AIS数据挖掘对马六甲海峡潮波特征的初步研究
Q4 Engineering Pub Date : 2023-06-15 DOI: 10.25303/1607da0107
M. Mustaffa, Aini Nazli Ahmad, Shaharudin Ahmad
In this study, advanced data mining techniques and Automatic Identification System (AIS) data were used to examine the tidal and wave dynamics of the Strait of Malacca. This strait has been an important commercial route for centuries, connecting the Indian Ocean to the South China Sea and the Pacific Ocean. It is located between Sumatra Island's east coast and Peninsular Malaysia's west coast, with the Strait of Singapore at its southeast end. The study's initial findings indicate a strong correlation between the distance of ships' coordinates and the timing of the tide, which is mainly influenced by the harmonic motion of the sun and the moon. Through AIS data mining and analysis, this study demonstrates the potential for predicting sea heights during tidal events. These results could be further explored in future research. Overall, this study offers valuable insights into the intricate tidal and wave dynamics of the world's longest strait and highlights the promise of AIS data mining for advancing our knowledge of oceanic phenomena. The research outcomes could potentially facilitate the development of more precise and effective methods for forecasting sea heights and predicting other marine processes.
本研究采用先进的数据挖掘技术和自动识别系统(AIS)数据对马六甲海峡的潮汐和波浪动力学进行了研究。几个世纪以来,这条海峡一直是连接印度洋、南中国海和太平洋的重要商业路线。它位于苏门答腊岛东海岸和马来西亚半岛西海岸之间,东南端有新加坡海峡。这项研究的初步发现表明,船只坐标的距离与潮汐时间之间有很强的相关性,而潮汐时间主要受到太阳和月亮和谐运动的影响。通过AIS数据挖掘和分析,本研究展示了在潮汐事件期间预测海平面高度的潜力。这些结果可以在未来的研究中进一步探索。总的来说,这项研究为了解世界上最长海峡复杂的潮汐和波浪动力学提供了宝贵的见解,并强调了AIS数据挖掘对提高我们对海洋现象的认识的前景。研究结果可能有助于开发更精确有效的方法来预测海平面高度和预测其他海洋过程。
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引用次数: 0
Design of blast pattern with perimeter controls for use in poor ground conditions 恶劣地面条件下使用的带周边控制的爆破模式设计
Q4 Engineering Pub Date : 2023-06-15 DOI: 10.25303/1607da08017
Ashley Ruvimbo Sabao, Frank Kwachara Ngoroyemoto Tapiwa, Zvinashe Garwe, R. Verma
This study contains research information on how to counter adverse results (over break, dilution and reduced safety) when conducting blasting operations using Mimosa mine in Zvishavane as a case study. Two perimeter blasting techniques were incorporated into the original blasting pattern used at the mine in order to analyse their effect on blasting operations as compared to the original pattern. To achieve this, a trial blast of each blasting pattern was carried out and the resulting mining heights, dilution and number of bolts replaced to improve safety were recorded and analysed. These results indicated that using perimeter blasting as a method of controlling a blast was capable of minimizing or possibly eliminating some of the negative effects of blasting in poor ground conditions. Further analysis was carried out between the two perimeter blasting techniques and it was concluded that smooth wall blasting was the best method to use in blasting in poor ground conditions. This was as a result of its low drilling times as well as cheaper drilling cost as compared to line drilling.
本研究以Zvishavane的Mimosa矿为例,研究了如何应对爆破作业时的不利结果(过度破碎、稀释和降低安全性)。将两种周界爆破技术纳入矿山原有爆破模式,对比分析两种周界爆破技术对爆破作业的影响。为了实现这一目标,对每种爆破方式进行了一次试爆,并记录和分析了由此产生的开采高度、稀释和更换螺栓的数量,以提高安全性。这些结果表明,使用周界爆破作为控制爆破的方法能够最大限度地减少或可能消除在恶劣地面条件下爆破的一些负面影响。通过对两种周长爆破技术的对比分析,得出光面爆破是较差地基条件下的最佳爆破方法。这是因为它的钻井时间较短,钻井成本较低。
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引用次数: 0
Comparative insights of Land Subsidence in Coastal Zones for Japan and Indonesia 日本和印度尼西亚海岸带地面沉降的比较研究
Q4 Engineering Pub Date : 2023-06-15 DOI: 10.25303/1607da054058
Rizka Nuzula Rachma Tia, Hendrotoro Seputro Koestoer Raldi, C. -
Worldwide coastal cities face growing threats from environmental factors such as land subsidence. This study compares the policies implemented by the Tokyo and Semarang Governments to address the issue of land subsidence. The study aims to analyze the condition of land subsidence in the two cities and to identify successful adaptation patterns that can serve as a reference for other coastal cities facing similar issues. The method used in this study is a literature review of references that discuss land subsidence and related policies. The findings indicate that the Tokyo government has successfully tackled the problem of excessive groundwater pumping which is the leading cause of land subsidence and reconstructed the coastal areas that were prone to flooding due to subsidence. The Semarang government has implemented Regional Government plans to address the issue, but floods still inundate many coastal areas and many communities are still affected. Therefore, there is a need to strengthen embankments and coastal construction to prevent flooding along the entire Semarang coast. A more comprehensive approach and long-term planning are necessary to manage land subsidence risks effectively. The study's findings provide insights that can help other coastal cities to address the issue and mitigate its impacts.
全球沿海城市面临着来自地面沉降等环境因素的日益严重的威胁。本研究比较了东京和三宝垄政府为解决地面沉降问题而实施的政策。本研究旨在分析这两个城市的地面沉降状况,并确定成功的适应模式,为其他面临类似问题的沿海城市提供参考。本研究中使用的方法是对讨论地面沉降和相关政策的参考文献的文献综述。调查结果表明,东京政府已成功解决了导致地面沉降的主要原因地下水过度抽取的问题,并重建了因沉降而容易发生洪水的沿海地区。三宝垄政府已经实施了地区政府的计划来解决这个问题,但洪水仍然淹没了许多沿海地区,许多社区仍然受到影响。因此,有必要加强堤防和海岸建设,以防止整个三宝垄海岸发生洪水。需要采取更全面的方法和长期规划来有效管理地面沉降风险。这项研究的发现提供了一些见解,可以帮助其他沿海城市解决这一问题并减轻其影响。
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引用次数: 0
The effect of vertical aspect ratio of RC Structures on the Performance Levels using Pushover Analysis 用推覆分析研究钢筋混凝土结构竖向纵横比对性能水平的影响
Q4 Engineering Pub Date : 2023-06-15 DOI: 10.25303/1607da042049
W. Mushina, H. Alewi, J. Mushina
The effect of earthquakes in the present date had special attention in the evaluating process of the damage degree or collapse in the structures. It needs clear indications for evaluating the adequacy for existing buildings. To reduce the severe damage and stability loss, more preparations are required for safe buildings. During the earthquake, the building behaviors critically depend on building size, shape and the geometry. The pushover method is classified as nonlinear type and it is becoming a common tool used to evaluate the seismic performance for new and existing structures. The study shows the effect of building height to plan length ratio (height/length) on the base shear force, displacement, performance point and plastic hinge formation. Four buildings were compared with same seismic conditions Ca and Cv equal to 0.4, the plans of vertical aspect ratio of 0.5,1, 1.5 and 2 with plan dimension 18 m × 18 m having same area of 324 m2. The results show a proportional value of displacement against height, while the base shear force has nearly close values for different height with small increments. The behaviors of hinges mean that the building height increments make the building be more flexible and had more energy absorption.
目前,在结构损伤程度或倒塌程度的评估过程中,地震的影响尤为突出。它需要明确的指示来评估现有建筑的适当性。为了减少严重的破坏和稳定性损失,需要为安全建筑做更多的准备。在地震期间,建筑物的行为主要取决于建筑物的大小、形状和几何形状。pushover方法被归类为非线性类型,它正成为评估新结构和现有结构抗震性能的常用工具。研究表明,建筑高度与平面长度之比(高度/长度)对基底剪力、位移、性能点和塑性铰形成的影响。对四栋建筑在相同地震条件下进行了比较,Ca和Cv分别为0.4,竖向纵横比分别为0.5、1、1.5和2,平面尺寸为18m×18m,面积为324m2。结果表明,位移与高度成正比,而基底剪力在不同高度下几乎接近,增量较小。铰链的行为意味着建筑高度的增加使建筑更加灵活,并具有更多的能量吸收。
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引用次数: 0
Performance measures of frequency ratio, weight of evidence and AHP models for flood risk assessment of Panchganga river basin (PRB), Kolhapur (India) 印度Kolhapur Panchganga河流域(PRB)洪水风险评估的频率比、证据权重和AHP模型的性能测量
Q4 Engineering Pub Date : 2023-06-15 DOI: 10.25303/1607da031041
P. N. Pusdekar, Dr. Sanjay Vasant Dudul
Flood events are the most common and frequent natural disasters causing enormous loss to property and life worldwide. In this study, the Panchganga River Basin (PRB) was selected for flood susceptibility mapping using the frequency ratio (FR), weight of evidence (WoE) and Analytical Hierarchy Process (AHP) model with remote sensing and GIS based approach. For this, a flood inventory with 224 historic flood locations was prepared using Google Earth Engine. About 75% of flood locations were randomly selected for training and 25% for testing purposes. The flood susceptibility map prepared using FR, WoE and AHP model was classified into five zones such as very high, high, moderate, low risk and safe zone using ArcGIS software. The receiver operating characteristic (ROC) curves were plotted with area under curve (AUC) of 89.27%, 87.34% and 80.60% for FR, WoE and AHP models respectively. The present study will help people near Panchganga river to move to a safer place during flooding. The flood risk zone maps are extremely helpful in infrastructural developments, town planning and civil protection.
洪水事件是世界范围内最常见、最频繁的自然灾害,造成了巨大的财产和生命损失。在本研究中,选择Panchganga河流域(PRB)进行洪水敏感性绘图,使用频率比(FR)、证据权重(WoE)和层次分析法(AHP)模型,结合遥感和基于GIS的方法。为此,使用谷歌地球引擎编制了一份包含224个历史洪水地点的洪水清单。大约75%的洪水地点被随机选择用于训练,25%用于测试。利用ArcGIS软件,将FR、WoE和AHP模型编制的洪水敏感性图划分为极高、高、中、低风险和安全区五个区域。FR、WoE和AHP模型的受试者工作特性(ROC)曲线的曲线下面积(AUC)分别为89.27%、87.34%和80.60%。目前的研究将帮助Panchganga河附近的人们在洪水期间转移到更安全的地方。洪水风险区地图对基础设施发展、城市规划和公民保护非常有帮助。
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引用次数: 0
Empowering the youth in times of crisis: Analyzing crisis-related activities among the youth of Muntinlupa City, Philippines during typhoons 在危机时期赋予青年权力:分析台风期间菲律宾蒙廷鲁帕市青年的危机相关活动
Q4 Engineering Pub Date : 2023-05-15 DOI: 10.25303/1606da01007
Rudolf Anthony Lacerna, Jerielyn V. Reyes, J. Ancheta
This study attempts to analyze the crisis-related activities among the youth of Muntinlupa City as the basis for a crisis communication management plan which is imperative to minimize the typhoon's impact. The researchers selected six youth representatives from different parts of Muntinlupa City to participate in the conduct of a focused-group discussion. Several themes have emerged before, during and after the typhoon based on their experiences and perspectives of crisis-related activities in the City. For instance, information dissemination on typhoon preparedness, coordination with different local agencies and behavior change communication strategies are the crisis-related activities before the typhoon. Meanwhile, close monitoring of evacuees with the help of local agencies, roving of barangay emergency response team, distribution of relief goods and hot meals, regular information dissemination, provision of informal learning to children and provision of breastfeeding stations are among the crisis-related activities during the typhoon. On the other hand, the crisis-related activities after the typhoon include assessment of devasted areas giving assistance, seeking psychological help, coordination with the health center and post-typhoon information dissemination. These crisis-related activities are good indicators that the youth involvement and participation in Muntinlupa City are active to ensure the safety of their communities during the disaster.
本研究试图分析Muntinlupa市青年中与危机相关的活动,作为制定危机沟通管理计划的基础,该计划对于最大限度地减少台风的影响至关重要。研究人员从Muntinlupa市不同地区选出了六名青年代表,参与了一场重点小组讨论。根据他们对城市危机相关活动的经验和看法,在台风之前、期间和之后出现了几个主题。例如,有关台风防备的信息传播、与不同地方机构的协调以及行为改变沟通策略是台风发生前与危机相关的活动。与此同时,在当地机构的帮助下,密切监测撤离人员,巴兰盖应急小组的流动,分发救援物资和热餐,定期传播信息,为儿童提供非正式学习,并提供母乳喂养站,这些都是台风期间与危机有关的活动。另一方面,台风过后与危机有关的活动包括评估受灾地区提供援助、寻求心理帮助、与卫生中心协调以及传播台风后的信息。这些与危机有关的活动很好地表明,Muntinlupa市的青年参与和参与是积极的,以确保他们社区在灾难期间的安全。
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引用次数: 0
Earthquake Prediction using Convolutional Neural Network 基于卷积神经网络的地震预测
Q4 Engineering Pub Date : 2023-05-15 DOI: 10.25303/1606da45052
G. Singh
Due to natural processes of the earth, some major adverse events can occur like earthquakes, tsunamis, storms, fire storms, dust storms, floods, tornadoes, volcanic eruptions hurricanes etc. which can result into financial, environmental or human losses. An earthquake in a populated area may result into not only extensive damage to property but also to huge casualties and injuries. Thus prediction of earthquake is very necessary to avoid these losses. Convolution Neural Network (CNN) applied to earthquake prediction has been reviewed here.
由于地球的自然过程,一些重大的不利事件可能发生,如地震、海啸、风暴、火灾、沙尘暴、洪水、龙卷风、火山爆发、飓风等,可能导致经济、环境或人类的损失。在人口稠密地区发生地震,不仅会造成广泛的财产损失,而且会造成巨大的人员伤亡。因此,地震预报对于避免这些损失是非常必要的。本文综述了卷积神经网络(CNN)在地震预报中的应用。
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引用次数: 1
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Disaster Advances
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