bluuebunny/crossref_metadata_2025_split huggingface dataset:
GIS-based Analysis of Distribution and Development Characteristics of Landslide Hazards in the Bailong River Basin
Authors: Jiarui MAO , Tiefeng LI 
Published: November 2020

Abstract
The Bailong River Basin is one of the most landslide prone areas in China. Based on landslide interpretations from field investigations and high-precision remote sensing images, the influencing factors, distribution rules, and development characteristics of landslides in this region are examined using the powerful spatial analysis capability of the ArcGIS platform. This study identifies the following major influencing factors and provides corresponding conclusions. (1) Fault and tectonic activities: landslides in the study area are distributed mainly in the vicinity of the large and secondary fault zones (< 10 km) and in areas with high peak acceleration and seismic intensity (with a peak motion acceleration of 0.3 g and seismic intensity of a VIII-degree area). (2) Hydrological conditions: the closer to the river (an area of < 200 m), the higher the likelihood of a landslide to occur. Landslide density is highest in areas with substantial short-term rainfall (maximum rainfall amount within 30 min shows the highest correlation with landslides). (3) Topographic parameters of slopes: landslides are distributed mostly on sunny slopes (facing south, southwest, and southeast), gentle slopes (with an incline of approximately 15°–30°), and high mountain areas (with an elevation of approximately 1000–2000 m). (4) Vegetation: areas with low FC coverage (approximately 10%–45%) are prone to landslides, which are distributed mainly in grasslands and cultivated lands. (5) Human engineering activities: densely populated areas (urban areas) and both sides of roads (approximately 0–200 m from a road) are prone to landslides. Overall, landslides are sudden, periodic, synchronous, and occur in groups. The research results have certain reference value for hazard prevention and mitigation in the Bailong River Basin area.
A novel index to evaluate CO2-induced wellbore cement degradation in CO2 rich environment
Authors: Zhang L W , Miao X X , Wang Y , Cheng X W , Ellett K , Gan M G , Fu X J , Liu S N , Li X C 
Published: November 2020

Abstract
A new index named CT-derived carbonation index is proposed to evaluate CO2-induced cement degradation in CO2-rich corrosive environment. This index is obtained by conducting CT scanning of cement samples before and after exposure to CO2, calculating grayscale difference and applying an algorithm to correlate grayscale with CaCO3 content. To demonstrate how to calculate the carbonation index, a CO2-cement interaction experiment along with X-ray computed micro-tomography characterization of a cement sample before and after exposure to CO2 was carried out to investigate the degree of cement carbonation. CO2 was dissolved in 1 wt% NaCl solution under a CO2 partial pressure of 17 MPa and a temperature of 63 °C. The carbonate shell in the cement sample was segmented from the grayscale difference images and the average penetration depth of the carbonate shell was obtained. The carbonation index was then calculated as the ratio of the average penetration depth of the carbonate shell to the radius of the sample, divided by the reaction time. In this study, the carbonation index of the cement sample exposed to CO2 for 14 days was 0.01 day−1. Based on the results in this study and other studies, a carbonation index of 0.05 day−1 or above corresponds to heavy degradation of cement by CO2.
Anti-floatation design test and simulation study of large LNG underground storage tanks
Authors: Li K W , ZHOU B , Xie X Y , Ma X F , Jin G L 
Published: November 2020

Abstract
With the changes in China’s energy demand, the proportion of liquefied natural gas (LNG) is expected to account for 10% of the country’s total energy resources by 2020; thus, the demand for large storage tanks has become urgent. However, all LNG storage tanks in China are located aboveground, with no precedent set for fully- or semi-underground storage tank implementation. Therefore, the present study analyzes the displacement and pore water pressure characteristics of underground LNG storage tanks under anti-floatation conditions based on the construction of a 250,000 kL underground storage tank that is 91 m in diameter and 42 m in depth. Centrifuge tests were conducted to explore the development laws of displacement and pore water pressure of the bottom plate under different load conditions for fully- and semi-underground tanks. The displacement response of the tank under the flotage condition clearly exhibited three-stage characteristics, that is, the safe, dangerous, and failure stages. The development laws of each stage were then summarized, analyzed, and explained by numerical and analytical calculations to provide a theoretical basis for storage tank design and anti-floatation monitoring.
Study on Underground Logistics System Planning in the Jinan Prior Zone
Authors: Lu B , Zhang MX 
Published: November 2020

Abstract
In recent years, logistics demands in Jinan have shown clear growth trends. By 2020, Jinan city has proposed that the volume of express deliveries will reach 800 million packages, with revenue reaching 7 billion CNY. As an innovative logistics system, an underground logistics system (ULS) can provide new developmental ideas for urban logistics in Jinan. Although there are no actual cases of ULS construction projects in the world at present, as a first demonstration area driven by innovation in Jinan City, the Jinan Prior Zone for Replacing Old Growth Drivers with New Ones (Jinan Prior Zone) will be the first to attempt its implementation, thus providing an advanced model for sustainable development of urban logistics around the world. Based on the urban master plan of the Jinan Prior Zone, the logistics plan of Jinan city and other urban subject plans, this study proposes ULS planning for the Jinan Prior Zone, including demand forecasting, logistics architecture, planning principles, construction forms, and short/long term construction plan. The ULS planning will provide small batch, high frequency, and high timeliness for express delivery services in the central area of the Daqiao Group in the Jinan Prior Zone. In the long term, it will serve 500,000 people, with an average daily logistics volume of 1300 tons. This study views the introduction of ULS into the Jinan Prior Zone will both improve the efficiency of logistics and reduce the pressure of ground traffic and improve the level of green logistics, which is of great significance for the promotion of high-quality development of urban logistics.
Deformation-strain field characteristics and fault activities in central Yunnan water diversion project area
Authors: Fu Ping , Yin Jianmin , Ding Xiuli , Liu Yuankun 
Published: November 2020

Abstract
The movement and deformation characteristics of an active fault zone are an important prerequisite for the stability analysis of cross-fault project sites and breaking resistance design research. Based on the global positioning system (GPS) data of the Crustal Movement Observation Network of China, a GPS velocity clustering algorithm to avoid the uncertainties of block division results from geological data is proposed and applied for velocity field analysis of Yunnan province. Using the data of active faults in the central Yunnan water diversion project area and the clustering results along with a block rotation and uniform strain model, the current slip rates of the main fault were obtained by using the difference between the speeds of the same point at the boundary of neighboring blocks. Furthermore, using the 1999–2007, 2009–2013, and 2013–2015 GPS velocity field data as the constraints, the relation between the spatial points and velocities was established based on the least squares collocation theory. The distribution of strain rates in the central Yunnan water diversion project area were resolved by the spherical strain calculation method, and the dynamic variation characteristics were analyzed using regional historical earthquakes and fault properties. The results of this study show that Xiaojinhe–Lijiang and Xiaojiang faults currently have noticeable strike–slip motion. The southern Xiaojinhe–Lijiang and Xiaojiang faults have always been two strong deformation zones, and the extensional deformations in Longpan–Qiaohou, Lijiang–Jianchuan, and Chenghai–Binchuan regions are being enhanced. Xiaojiang fault is the zone with the maximum shear strain rate. These results indicate that the deformation distribution characteristics are closely related to the characteristics of the activity features of the major faults in the region.
Monitoring and Early Warning Technology of Hydrate-induced Submarine Disasters
Authors: Sun Zhiwen , Jia Yonggang , Shan Hongxian , Fan Zhihan , Song Xiaoshuai , Xue Liang , Li Kai 
Published: November 2020

Abstract
With the depletion of fossil energy sources, such as coal and petroleum, natural gas hydrate has been proposed as an alternative energy source. However, the synthesis of natural gas hydrate may cause marine engineering disasters, such as submarine cable breaks and the collapse of sub-sea oil rigs, and even submarine earthquakes, triggering tsunamis and seriously endangering human safety. Hydrate test production monitoring in various countries focuses on the temperature, pressure, and methane concentration near test production wells. Effective observation equipment and methods for the monitoring and early warning of submarine geological hazards are lacking. This paper reviewed the possible geological hazards caused by deep seawater hydrate mining and the monitoring and early warning technologies for deep seawater hydrate mining in various countries and introduced the in-situ Surveying Equipment of Engineering Geology in Complex Deep Sea (SEEGeo). The equipment uses 3D resistivity measurement and data inversion technology, seabed sediment acoustic measurement and data inversion technology, seabed sediment pore water pressure measurement and data inversion technology, and renewable energy seawater-dissolved oxygen battery power supply technology. SEEGeo can realize the in situ, real-time, long-term, effective monitoring and early warning of geological disasters induced by hydrate development. At present, the equipment has conducted two sea trial experiments on the continental slope of the South China Sea, equipped with the “Marine Geology No. 6” scientific research vessel of the Guangzhou Marine Geological Survey and the “Dongfanghong No.3” scientific research vessel of the Ocean University of China, and obtained in situ engineering geological data of the South China Sea.
Rock surface porosity measurement and pore distribution analysis based on hole wall images
Authors: Wang C , Wang C Y , Han Z Q , Wang Y T , Huang Y Q 
Published: November 2020

Abstract
This study proposes a method that uses image processing technology to identify, calculate, and analyze the pore structure in hole wall images. First, the R, B, and G components of a hole wall image are adjusted on the basis of an appropriate threshold to eliminate the effects of drilling fluid attached to the hole wall. Second, the hole wall image is converted into an S component image in the HSV color space to distinguish the pores and dark gray texture of the rock. Third, the best segmentation threshold of the S component image is obtained by the maximum interclass variance method, and the threshold is used to binarize the S component image. Finally, mathematical morphological operations are performed on the binary image to eliminate defects. On the basis of the identified pore structure in the hole wall image, the surface porosity of the rock can be calculated, and the pore distribution characteristics can be further analyzed. The results of this work provide ideas for measuring the porosity of deep rocks and analyzing their pore distribution.
Comparison and Selection of Thermal Insulation Materials for RCC Dam Construction in Dry and Cold Valleys at High Altitudes in Tibet
Authors: Xiang Qian , Xiong Tao 
Published: November 2020

Abstract
Effective temperature preservation and moisture retention measures are key techniques in ensuring concrete quality and preventing cracks formation in RCC dams and the concrete surface in the middle reaches of the Yarlung Tsangpo River in dry and cold river valleys. Insulation and moisture retention effect, construction technology, and cost of pasting polystyrene board, spraying foam polyurethane, and rubber plastic sponge insulation membrane on the dam concrete surface were compared and analyzed to determine the thermal insulation material with the best temperature preservation, best moisture retention effect, and high applicability. Finally, the rubber plastic sponge, which matched the trim strip process, was determined as the best insulation material. It features temperature preservation, moisture preservation, no secondary cleaning after removal, good appearance, and high secondary utilization rate. The results of dam overwintering monitoring and uncovering inspection in 2019 showed that the internal and external temperature differences and surface humidity indexes of concrete were within the design index value, and cracks were absent. The purpose of temperature control and crack prevention of dam concrete was achieved, and the material has high application value.
Sustainable Water Demand Management: A Case Study of Singapore’s Accommodation Sector
Authors: Hu Xiao 
Published: November 2020

Abstract
A wide variety of tourist activities rely on natural r10220, esources. One such prominent resource is water, which is not only fundamental for scenic beauty of a landscape, but is also required for promoting and sustaining accommodation environments and water is fast-becoming a scarce natural resource. This study focused sustainable water management and tourism development in the context of accommodation sector, with special attention to the water demand management (WDM) strategies and practices of Singapore - a water-stressed country and a prime tourist destination in the Asia Pacific region. This study found that there exists a water conflict between greater demand for water resource and sustainable tourism development. Singapore’s demand for water far exceeds its naturally occurring supply as the densely populated city-state has no freshwater lakes or aquifers. Management of water demand is necessary to ease this problem. Both pricing and non-pricing mechanisms to control water demand in the accommodation sector were found based on the content analysis, which reflect sustainability principles at tourist destinations. The price mechanisms refer to the potable water pricing structure. Non-pricing mechanisms, such as regulatory mechanisms, engineering instruments and alternate sources of water, as well as public education and community involvement, also play critical roles in the accommodation sector. This holistic approach to managing water resource from a demand perspective requires the support and participation from policy stakeholders from the public, private, and third sectors.
Ventilation Control for the Concentration of Fine Suspended Particulate (PM2.5) by Worship Incense
Authors: Chen Colin W.K. , Chen Yu-Ting 
Published: November 2020

Abstract
This study analyzed indoor fine particles generated by incense burning. The case study was conducted in a small family chapel. Three different designs of the exhaust system were proposed, including the non-control, the overall ventilation, and the local exhaust scenario. We also took into account the actual human behavior to simulate the concentration changes for various situations. The results showed that the scenario with no fine suspended particles (PM2.5) control had the maximum PM2.5 concentration, exceeding the indoor air quality standards in Taiwan. Although the overall ventilation strategy may reduce the concentration, it may also agitate the environment and disperse the pollutants to the entire room, resulting in a hazy smog condition. This might pose additional threat to people spending time indoor. Finally, using local exhaust plan showed the best PM2.5 controlling efficiency among the three scenarios, while its energy consumption was also the most economical. Nevertheless, different forms of the smoke require different designs of ventilation strategy to obtain the highest efficiency, which was also compared and analyzed in this paper.
Investing a Better Future: Education for Sustainable Development as a Means to Strengthen the Environmental Education
Authors: Xu Ping , Luo Faxiang 
Published: November 2020

Abstract
Since the outbreak of the epidemic, the environment education and the education of sustainable development became the mainfocus once again. It is because some citizens lack consciousness of ecological civilization and sustainable development, caused environmental pollution, indiscriminate killing of wild animals, destruction of social public health, injury and sacrifice of people’s physical and mental health, disturbance of urban and rural social life order, etc. The outbreak of the novel coronavirus pneumonia undoubtedly confirmed the urgency of strengthening the global citizens’ education for sustainable development. This serious epidemic related to the sale and consumption of wild animals is a wake-up call again. It is necessary to reexamine the relationship between man and nature and the way of human behavior. Education is the key factor for the implementation of sustainable development. Good health and well-being, and quality education are the third and fourth goal for sustainable development proposed by the United Nations. Through content analysis and case analysis, this paper indicated that teachers’ educational ability for sustainable development is a professional ability that higher education institutes should apply education for sustainable development as a means to strengthen the environmental education. Teachers identify with the concept of sustainable development education and are willing to practice the values of sustainable development in life and educational activities.
An Experimental Study on the Influence of Tibetan Antelope Conservation Documentary on Audience
Authors: Li Yuwei , Yang Bai 
Published: November 2020

Abstract
From the perspective of human activities, survival and development, the documentary on the protection of Tibetan antelope reveals the current situation of the survival crisis of rare and wild Tibetan antelope, and shows the panoramic ecology of the competition between hunters and guardians. This paper uses text analysis, narrative analysis and experimental research methods to explore the ecological view of Tibetan Buddhism reflected in the Tibetan antelope conservation documentary, presents the image creation techniques used by the ecological view and the environmental action force generated by the audience. Through text analysis and research, recorded images show the natural and environmental protection concepts of “all living creatures have spirits” in Tibetan Buddhism, such as worship of nature, protection of life extension, equality of all living beings, prevention of killing and protecting living creatures. It is not difficult to draw the conclusion that the documentary image is based on the premise of non-fiction, and the image theme containing the ecological ethics of Tibetan Buddhism is expressed by means of symbolic narration and detailed narration. Through the experimental research method, combined with the questionnaire survey contents of the experimental subjects, some readers and listeners will increase the awareness of ecological protection and generate the power of environmental action.
Strengthen the Effectiveness of Environnemental Protection through Community Empowerment for Building Corruption-Free Society
Authors: Kulsudjarit Amornrat , Pattaranukrom Phenprapha , Samukkethum Sujitra 
Published: November 2020

Abstract
Environmental protection in the community is an important part of sustainable development. However, the effectiveness of community environmental protection is often affected by corruption, which has compromised the effectiveness. Corruption is a major social problem widely affecting all humanity around the world today. Thailand has also been confronted with the mentioned issue for a long time. Thailand’s Corruption Perception Index (CPI) ranking shows no improvement. As a result, Thailand gives priority to a campaign to become corruption-free society. Particularly, it focuses on the community level as historic grassroots society with the cultural landscape differences in order to strengthen the community’s ability to manage itself in a sustainable manner and to play a major role in the nation’s development. This research study aimed at developing and implementing a system and mechanism including enhancing community participation in the community’s corruption prevention and solution. It focused on creating the community’s practice culture by applying good governance principles in participation, transparency, rule of law and accountability. In this regard, the community committee applied a counterbalance system, particularly in transparency, accurate accounting records of the community’s income and expense including the rule for the disbursement. In addition, the community members were informed about a variety of community activities and encouraged to participate in the mentioned activities. Importantly, to ensure a positive outcome, the relevant government agencies allocating the budget to support the community must closely supervise, monitor and strictly abide by the rule for budget spending so that a system and mechanism can be applied for driving the community to become sustainable and efficient “Corruption Free Community”.1
Green Supply Chain for Electromechanical Engineering of Rail Transit
Authors: Wang Jing 
Published: November 2020

Abstract
Greening of ventilation and air conditioning systems, water supply and drainage systems, and electrical system supply chains in rail transit electrical and mechanical engineering, it can effectively reduce energy consumption and save resources to provide guarantee for the sustainable development of rail transit. This paper studies the long-term construction practice experience of Chengdu Metro in Sichuan Province, Collected and sorted out information and information on key points of energy loss and environmental protection and energy conservation. Apply case studies and survey studies for typical sites, it is concluded that there are still a lot of green space in the supply chain links of the three major systems in the rail transit mechanical and electrical engineering. Develop an optimization plan for reducing consumption in each stage of the ventilation and air conditioning system, Ways to reuse water resources in water supply and drainage systems, Methods and measures for energy saving and environmental protection in electrical systems. The viewpoint of this thesis starts from practice and has practical guiding significance for the green supply chain of rail transit electromechanical engineering. But green environmental protection is an eternal topic for human beings, with the continuous advancement of social economy and science and technology, there will be more in-depth research.