Search

Rural natural disasters are a key control point for rural revitalization. Rural natural disaster management faces the following challenges: high frequency of disasters and significant damage; there are many investment projects and large funds for prevention and control, but the efficiency is low; lack of systematic and long-term mechanisms. In this context, the vulnerability perspective is introduced, combined with the dual vulnerability characteristics of natural and social factors in rural areas of Wulin Mountain, to deeply analyze the reasons behind the difficulties in rural natural disaster management, finally, the strategies of constructing “ three systems”, implementing “ three cultivations”, and adhering to “three combinations” to advance the strategic layout, strengthen the awareness of ecological crisis, and improve disaster response capabilities are proposed. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of World Nuclear Geoscience is the property of World Nuclear Geoscience Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

As a fundamental component and foundational principle of emergency management, safety production is both intrinsically related to and distinct from the broader concept of emergency management. The fields of emergency response and safety have emerged as significant focal points within the academic community. Prior to this study, numerous scholars have conducted research at various levels on these two subjects. This paper offers an analytical examination of the prevailing research trends and cutting-edge developments in the domain of safety production and emergency management over the past decade, from 2014 to 2023. Employing CiteSpace, the study generates visual representations of keyword co-occurrence, thematic clustering, and the emergence of networked relationships for the three pivotal terms: safety production, emergency management, and their intersection. The empirical data reveal that the primary research focus within safety production is centered on safety management, while in the realm of emergency management, the spotlight falls on public safety. A substantial interconnection between the two domains is evident, particularly within the contexts of big data analytics and the development of intelligent infrastructure. Future research endeavors are anticipated to place greater emphasis on the integration and exchange within the artificial intelligence industry, which presents a more diverse and expansive scope than the traditional research areas of safety production and emergency management. [ABSTRACT FROM AUTHOR]

Flowers and fruits collected from the two major apple varieties ('Gala' and 'Fuji') grown in Ningxia during the bud, full-bloom, fruiting and young fruit setting stages were used as test material for the cryogenic treatments, and then the freezing rates of the ovaries under different cryogenic treatments were counted and analyzed. The Logistic equations established for the 20%, 50% and 80% freeze rates were set as the indicators of light, moderate and severe frost damage, respectively. The daily minimum temperature data collected in 19 meteorological stations from 1981 to 2022 were used to analyze the scope, frequency, intensity, and risk characteristics of disaster--causing factors of frost occurrence in Ningxia from the point of view of climatic disaster, by the means of mathematical statistics and spatial analysis. The classification of frost risk was completed by analyzing the difference in risk of late frost damage to apples in various regions of Ningxia, based on a combination of the vulnerability index and the exposure index of the affected apple. The results showed that the late frost damage to 'Gala' and 'Fuji' apple in Ningxia often occurred between 20 April and 10 May during the flowering and fruit setting period. The high-risk areas of late frost damage to 'Gala' and 'Fuji' apple were mainly located in the south-central areas close to the mountain ranges, among which Jingyuan, Xiji, and Longde were the highest risk areas, with a risk index of Hi>0.3. The suitable areas for apple cultivation were mainly in Pingluo, the southeastern part of Yinchuan, the Litong district of Wuzhong, the western part of Linwu, and parts of Zhongwei city, with an exposure index of 0.7-1.0. The high risk areas for 'Gala' were located in the western part of Lingwu, the western part of Shapotou, and the central parts of Zhongning county in the northern Ningxia, and Xiji county and Longde county in the southern Ningxia. The high risk area for Fuji was located in the western part of Lingwu, Xiji county and most part of Longde county. Unsuitable areas for 'Gala' and 'Fuji' apple were mainly located along the Helan, Luoshan, Nanhua and Liupan mountain areas. In terms of frost resistance, Gala apple is stronger than 'Fuji' apple, and the resistance of 'Gala' apple is decreasing as the phenology evolves, since the phenological phase of 'Gala' is earlier than that of 'Fuji' apple. According to the frost damage zoning maps, 'Gala' is in higher risk than 'Fuji'. The zoning results reflected the actual distribution of late frost risk for 'Gala' and 'Fuji' apple cultivated in Ningxia. The zoning map is providing a scientific baseline for the proper distribution of apply cultivation as well as for the disaster prevention and mitigation in Ningxia. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Rapid urbanization has led to changes in land use patterns and runoff characteristics, resulting in frequent urban waterlogging problems. Predicting the future land use changes and exploring the evolution of urban waterlogging risk can provide reference basis for improving urban disaster prevention and reduction planning. This article takes Nanjing as an example and uses the FLUS model to predict the land use patterns in 2030. Combining the MaxEnt model and risk assessment index system, the main influencing factors of urban waterlogging risk and their contributions are identified. Moreover, the waterlogging risk pattern and its evolution under the land use scenarios are analyzed. The results indicate that: (1) The main characteristics of land use changes in Nanjing are a decrease in cropland and an increase in construction land. It is estimated that the cropland area in Nanjing will decrease by about 2.6% and construction land will increase by about 4.81% between 2020 and 2030; (2) Indicators such as land use type and distance from roads have a high contribution rate to the distribution of waterlogging risk in Nanjing, while indicators such as the number of days with daily precipitation exceeding 50mm and total precipitation have significant importance. (3) The proportion of high-risk areas in Nanjing in 2010, 2020, and 2030 was 4.77%, 5.37%, and 5.94%, respectively. The high-risk areas are mainly distributed in the central urban areas along the Yangtze River, with the high-risk areas in Gulou District, Qinhuai District, and Xuanwu District accounting for over 50% of the total in 2030; (4) With the change of land use pattern, there is a 23.36% probability that medium-high-risk areas will be transformed into high-risk areas, and a 21.74% probability that medium-risk areas will be transformed into higher risk areas. Overall, the risk level shows an increasing trend. [ABSTRACT FROM AUTHOR]

The current platform design standards for disaster prevention and rescue evacuation are formulated for trains equipped with door steps. However, the design standards for the width, height and location of emergency rescue station platforms are critical in determining the time and efficiency of evacuating passengers from trains involved in accidents to safety areas. For modern high-speed trains, the higher cabin floors and the limited number of door steps result in longer evacuation times and pose secondary safety risks, which require urgent resolution. This study first investigated the current design practices for emergency rescue station platforms and identified issues in the existing standards. Based on actual emergency drills conducted by railway companies, it then conducted an in-depth study of platform design standards for tunnel emergency rescue stations. Five design schemes were presented : "Existing Platform + Train With Door Steps", "Non-Intrusive High Platforms", "Non-Intrusive Medium-High Platforms", "Modified Clearance High Platforms" and "High Platforms with Flip Boards". The advantages and disadvantages of each proposal were analyzed in detail and compared. In the end, the paper recommended the "Modified Clearance High Platform" and the " High Platform with Flip Boards" as the most suitable designs. These recommendations serve as a basis for revising the railway tunnel disaster prevention and evacuation standards and provide valuable insights for the development of comprehensive emergency rescue engineering standards for railway tunnels in China. [ABSTRACT FROM AUTHOR]

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Wildland Fire Science is the property of Journal of Wildland Fire Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objectives: On August 3, 2024, a catastrophic flash flood and debris flow devastated Ridi Village in Guzan Town, Kangding City, Sichuan Province. This disaster led to the collapse of a bridge on the Yakang Expressway between the Ridi No. 1 and No. 2 tunnels and destroyed several homes in the village, resulting in 23 people missing and 4 confirmed fatalities. Methods: To gather critical information and support emergency rescue operations, an in-depth analysis of the Ridi Gully debris flow was conducted using drone aerial photography and on-site investigations. The study examined the formation processes and underlying causes of the debris flow, with key dynamic parameters being calculated. These data were then used to simulate the dynamic evolution of debris flow using FLO-2D software, and the verification accuracy (Ω) of simulation results reached 1.65. Results: The findings suggested that the debris flow was primarily triggered by internal factors, including the steep terrain of the watershed, the presence of weathered and fractured granite, and the abundance of loose material within the gully. External factors such as recent temperature increases, which accelerated snow and ice melt, along with sustained rainfall, created the conditions necessary for the debris flow to occur. The flow transported approximately 58×104 m³ of solid material, with the largest boulders measuring up to 6 m in diameter, while most ranged between 20 cm and 1 m. The flow velocity exceeded 8 m/s, and the impact force of individual boulders was over 500 kilonewtons, with the total impact force in the flow path surpassing 100 tons, resulting in significant destructive power. Conclusions: Critical insights into the formation and mechanics of the Ridi Gully debris flow offer valuable guidance for emergency response and disaster mitigation in regions with similar geological hazards in the mountainous areas of southwestern China. [ABSTRACT FROM AUTHOR]

To explore the influence of wind speed, wind direction, and jet diameter on the temperature rise of petrochemical equipment under the action of jet fire, this article uses fire dynamics simulation tool (FDS) software to conduct a systematic numerical simulation study on the temperature rise of petrochemical equipment under the action of jet fire. The results show that when the injection diameter is less than 0.15 m, the temperature rise rate of the device increases rapidly with the increase of the injection diameter. When the injection diameter is greater than 0.2 m, the temperature rise rate of the device slows down with the increase of the injection diameter. The temperature rise rate of the pet, rochemical device is exponentially related to the injection diameter. Both wind speed and direction have a significant impact on the peak temperature and temperature rise rate of petrochemical equipment. The temperature rise rate of petrochemical equipment exhibits a cubic function relationship with in, creasing wind speed. As the wind speed increases, the peak temperature of the device gradually de, creases and the decrease amplitude gradually increases. As the angle between the wind direction and the flame increases, the peak temperature of the petrochemical device gradually decreases and the de, crease amplitude gradually decreases. A quantitative calculation formula for temperature rise of petro, chemical plants under the action of jet fire was established. This model enables quantitative calculation of the change in temperature of petrochemical equipment over time due to the effect of jet fire, provi, ding data support for safety management and emergency response management [ABSTRACT FROM AUTHOR]

Copyright of Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agriculturae Zhejiangensis is the property of Acta Agriculturae Zhejiangensis Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of New Architecture is the property of New Architecture Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Mining Magazine is the property of China Mining Magazine Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The snow disasters in the Ili region of Xinjiang, China, have led to significant economic and social impacts, mainly through reduced agricultural production and ecosystem damage. To quantify and evaluate the impact of snow disasters in this region, this study analyzed 95 snow disaster events that occurred between 1990 and 2020. A disaster loss index was calculated using selected indicators, dimensionless processing, and weight assignment. The severity of snow disasters was categorized into four levels (mild, moderate, severe, and extreme) using the percentile method. The key findings are as follows: (1) Snow disasters in the Ili region exhibited a bimodal distribution, with peak occurrences in November and January-February, aligning with the region's seasonal climatic characteristics. Since 2014, the frequency of snow disasters has notably decreased. (2) Mild snow disasters were the most frequent, accounting for 49.4% of events, while moderate, severe, and extreme snow disasters represented 23.2%, 24.2%, and 5.0%, respectively. (3) The most severe disaster losses were observed in Nilka County, followed by Xinyuan County and Yining County, whereas Zhaosu County was the least affected. (4) Key meteorological factors influencing snow disasters, including cumulative snowfall, maximum snow depth, minimum temperature, and snowfall duration, displayed regional variations. Areas with high snow disaster incidence had higher mean values of maximum snow depth compared to other regions. This study provides a scientific foundation for risk assessment and management of snow disasters in the Ili region. [ABSTRACT FROM AUTHOR]

Objective To conduct hazard vulnerability analysis(HVA) in a blood bank, aimed to identify high-risk events and optimize emergency management measures. Methods The risk event evaluation index system was established by referring to the Kaiser model and the situation of Guangzhou Blood Center, and risk events were ranked by risk matrix and Borda count. Results The top five events with the highest risk values identified by Kaiser model were information system emergencies (39.61%), extreme weather (38.03%), major public sentiment (37.86%), public health events (37.37%) and policy changes (37.24%). The results of risk matrix and Borda count revealed 1 extremely high-risk indicator as information system emergency, 5 high-risk indicators with the highest risk being major public sentiment, 11 medium-risk indicators with the highest risk being major medical disputes and 1 low-risk indicator as external fires. Conclusion Conducting HVA in combination with the actual situation of blood banks can effectively identify high-risk events and provide theoretical basis for improving emergency management measures.

Using CLDAS products, the European Centre for Medium-Range Weather Forecasts high resolution model (ECMWF_HR), Global/Regional assimilation and prediction system-Global Forecast System (GRAPES_ GFS) and the data of the national meteorological center forecast (SCMOC) were analyzed for identifying the occurrence and intensity of heat damage under the condition of 1-3d, 1-5d and 1-7d in advance during the early rice booting maturity period in the middle and lower reaches of the Yangtze river from 2021 to 2023. The results showed that: (1) for the identification effect on the occurrence of heat damage, SCMOC products had better identification effect, with the probability of detection (POD) greater than 0.6 for each prediction period. The TS score between 0.49 to 0.59. The POD of GRAPES_GFS product was also greater than 0.6, but the false alarm rate (FAR) was greater than 0.3, with the TS score of 0.45 to 0.52. The ECWMF_HR product had the worst discriminative effect, with POD less than 0.4 and TS score less than 0.3. (2) For the identification effect of heat damage intensity, the value of accumulated heat damage of SCMOC products and CLDAS products were the closest, with the correlation coefficient (Cor) greater than 0.6. The root mean square error (RMSE) increased the forecast period, with values of 1.57℃·d, 2.57℃·d, and 3.43℃·d, respectively. GRAPES_GFS product had a strong forecast for most of Hubei and northern Jiangxi, while the forecast for central and southern Hunan was significantly weak. The Cor of GRAPES_GFS product with the CLDAS product was about 0.06 lower than that of the SCMOC product, and the RMSE was about 0.4℃·d higher. The Cor of ECMWF_HR products and CLDAS products was less than 0.4 in each forecast period, and the RMSE was 0.5℃·d to 1.0℃·d higher than that of the SCMOC products. (3) For the heat damage in different years, SCMOC and GRAPES_GFS products had good identification effect in 2022 and 2023, but the former had better identification effect in 2021. The ECMWF_HR product showed a significant weak forecast for the occurrence and intensity of heat damage in the study area from 2021 to 2023. In summary, the SCMOC prediction product has better identification effect on the heat damage of early rice in the middle and lower reaches of the Yangtze River, which can provide reference to carry out disaster prevention and reduction work on the heat damage of early rice. [ABSTRACT FROM AUTHOR]

[Objective] The aims of this study are to investigate on the evolution of rainstorm events and the sources of water vapor transport in Hefei under the background of urbanization, and to provide scientific basis for local rainstorm forecast and formulation of adaptive disaster prevention and reduction policies. [Methods] Trend analysis, Mann-Kendall non-stationarity test, GIS spatial interpolation and other methods were used to explore the spatiotemporal evolution of rainstorm events in Hefei, on this basis, the characteristics of rainstorm water vapor transport were analyzed based on the backward trajectory HYSPLIT model of Lagrange method. [Results (1) The urban heat island effect showed an upward trend (0.266°C/10a), impervious water surface continued to increase by 4.99%, the large-scale interannual variability of urban- suburban rainstorms had a feature of asymmetry, with an increase in the amount and number of days of urban rainstorms and a decrease in the intensity of rainstorms at a rate of 1.7 mm/(10 ad); and an increase in the intensity of suburban rainstorms at a rate of 1.1 mm/(10 ad); and a decrease in the amount and number of days of rainstorms. The spatial distribution of the large value area of rainstorm intensity extends outward from urban areas. (2) Urbanization had increased the number and extremity of rainstorm events in downwind urban areas, and the urbanization effect was more pronounced in the rapid development phase than in the slow development phase. The contribution of urbanization effects to the rainfall, number of days and intensity of rainstorms was 41.2%, 50.1%. (3) The water vapor transport from the Indian Ocean. the Bay of Bengal to the South China Sea and the Western Pacific accounted for 44%, 64% and 54% of the total water vapor, respectively, and the water vapor mass from the southwest was the main source of water vapor during the rainstorm process because of its low initial height and large specific humidity. [Conclusion] The asymmetry of rainstorm events in the suburbs of Hefei is more significant in the rapid development stage of urbanization. In the future, we should strengthen the research on the mechanism of rainstorm time change under the background of urbanization. [ABSTRACT FROM AUTHOR]

Copyright of Nuclear Safety is the property of Nuclear & Radiation Safety Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The roof of the main coal seam in Tingnan Coal Mine of Binchang Mining Area is a typical thick sandstone aquifer structure, and the multi-dynamic disaster outburst problem of rock burst, water damage and gas. Based on the analysis of the field measured data, two typical disaster chains of 'rock burst-water disaster and rock burst-gas disaster' in Tingnan Coal Mine were obtained. The disaster-causing mechanism of the disaster chain was studied through laboratory tests, and the principle of coordinated prevention and control of disasters was formulated. The coordinated prevention and control methods of roof disasters in extremely thick sandstone aquifers were designed, including two stages of pre-mining and mining, as well as the overall prevention and control of source chain breaking and systematic prevention and control of isolated chain breaking, and were applied in Tingnan Coal Mine. The results show that with the increase of impact amplitude, the ultimate bearing capacity of dynamic damaged coal and rock mass decreases, and the impact leads to the damage and weakening of roof, which communicates with the thick sandstone aquifer. The porosity of sandstone samples after strong impact is 8.23%, which is 34.48% higher than that without impact. The occurrence of rock burst increases the fracture of rock mass and provides a channel for gas escape. Through the cooperative prevention and control technology of roof disaster in extremely thick sandstone aquifer, the average resistance of the support is 35.03 MPa, and there is no obvious stress surge. The water inflow of the working face is stable at 250~280 m³/h, and the methane emission fluctuates at the level of 0.2%. The research can provide basic theoretical support for the prevention and control of multi-dynamic disasters in coal mines in Binchang mining area, help to achieve efficient prevention of coal mine disaster risks, and promote the progress of multi-disaster collaborative prevention and control technology. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Geomechanics is the property of Journal of Geomechanics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Mining Magazine is the property of China Mining Magazine Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Arid Land Geography is the property of Chinese Academy of Sciences, Xinjiang Institute of Ecology & Geography and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

【Objective】The study aims to quantify the impact of tropical cyclone disasters on rice output losses during the harvest period. It seeks to understand the impacts of tropical cyclone disasters on farmers’ livelihoods and food security. The findings would provide data support for mitigating the impacts of tropical cyclones on rice outputs in Guangdong and offer policy recommendations for enhancing comprehensive disaster prevention capabilities.【Method】With the pooled cross-section data from rice farmers in Guangdong Province from 2020 to 2022, the Tobit and 2SLS models were used to analyze household plot-level data, and the impacts of tropical cyclone disasters on rice outputs were estimated at a micro level.【Result】 Tobit model estimates indicate that tropical cyclone disasters significantly cause rice lodging at the 1% significance level, implying that the likelihood of rice lodging increases substantially when tropical cyclones occur. According to the survey data from 2020, 2021, and 2022, lodging rate caused by tropical cyclones accounts for 22.9% of the total lodging rate. For every 10% increase in plot-level rice lodging rate, rice outputs decreases by approximately 2.9%. The impacts of tropical cyclones on rice lodging and outputs vary among different households and plots within the same region, with coastal areas being more severely affected than inland areas.【Conclusion】Tropical cyclones in Guangdong cause rice lodging, which significantly impacts rice outputs and threatens food security. To mitigate the negative effects of tropical cyclones on rice production in Guangdong, the following policy recommendations are proposed: further improvement of farmland water conservancy infrastructure, including expanding the construction of high-standard farmland to ensure the rapid drainage of flood water caused by tropical cyclones; breeding and promoting the flood-tolerant or lodging-resistant rice varieties in coastal areas of Guangdong; effective communication of hazardous climate information and strengthening of tropical cyclone disaster early warning systems; and further enhancement of agricultural insurance policies for grain production, with increased compensation standards and payout levels. [ABSTRACT FROM AUTHOR]

Objectives: With the rapid development of the Internet, social media has become an important information source of emergency events. However, there are a lot of duplication, errors and even malicious contents in social media, which need to be effectively classified to provide more accurate information for disaster emergency response. Methods: Deep learning has greatly improved the accuracy and efficiency of text classification. This paper takes earthquake disaster as an example, and builds a multi-label classification model based on bidirectional encoder representation from transformers (BERT) transfer learning. Over 50 000 posts about 5 earthquakes are collected as training samples from SINA Weibo, which is a very popular social media in China. Each sample is manually marked as one or more labels, such as hazards information, loss information, rescue information, public opinion information and useless information. Results: By fine-tune training, the classification accuracies of the proposed model on training dataset and test dataset reach 97% and 92%, respectively. The area under curve score of each label ranges from 0.952 to 0.998. Conclusions: The results prove that the multi-label classification using BERT transfer learning is of high reliability. The proposed model can be applied to the emergency management services for earthquake events, which is beneficial for the rapid disaster rescue and relief. [ABSTRACT FROM AUTHOR]

Objectives: Using satellite video data as a target tracking data source can effectively remedy the problems of fixed angle and a small monitoring range of ground surveillance video, and provide a beneficial supplement for disaster prevention, intelligent transportation, crime tracking and other aspects. However, ground objects in satellite videos are complicated. If the texture, geometry, color and other appearance features of the target are blocked and submerged by other objects, tracking drift or tracking loss will occur in the tracking algorithm. Methods: Based on the fully-convolutional siamese network (SiamFC), this paper proposes an anti-occlusion target tracking algorithm based on satellite video, which can effectively solve the tracking loss problem of moving targets under different cover-up degrees. If the target occlusion degree is low, the forward result obtained by template update network is used as the tracking result of the current frame, and the forward result is set as a new forward template to obtain the changing characteristics of the moving target. If the target is highly obscured, first, the forward result is set as the new backward template, and used to repeatedly track the target in the previous frame. Then, the spatial position prediction module is used to obtain the historical trajectory features of the target and get the trajectory result. Finally, the forward result and the trajectory result are combined to get the tracking result of the current frame based on the bidirectional verification error obtained from the repeated tracking. Results: The proposed algorithm is verified by using typical moving target, aircrafts, ships and vehicles of Jilin-1 satellite video. The results show that the proposed algorithm can provide more accurate tracking results when the target is occluded. The tracking accuracy and success rate reach 76.2% and 78.9%, respectively, and the tracking speed is 33 frame per second. Conclusions: The proposed algorithm can realize the continuous tracking and monitoring of moving targets under occlusion conditions, and can effectively improve the emergency handling ability of intelligent transportation, disaster prevention and relief, wartime monitoring and other aspects in practical application. [ABSTRACT FROM AUTHOR]

Copyright of Remote Sensing for Natural Resources is the property of Remote Sensing for Natural Resources Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Remote Sensing for Natural Resources is the property of Remote Sensing for Natural Resources Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of CT Theory & Applications is the property of Editorial Department of CT Theory & Applications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of World Nuclear Geoscience is the property of World Nuclear Geoscience Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)