bluuebunny/crossref_metadata_2025 huggingface dataset:
Justification of the need for forming a frame of mutually complimentary industrial innovation centers in the ultracontinental core of the Eurasian space
Authors: Krasnoyarova B A , Krotov A V
Published: January 2021

Growing disagreements between major actors of world politics and economy have aggravated the conflict between leading competing states and caused expansion of geopolitical and geo-economic rivalry. Living conditions of the population of territories located in the most vulnerable places of the Earth, including ultra-continental cores in the countries of the former “socialist camp” (USSR, China, Mongolia) are sharply deteriorating. Creation of a frame-type network model based on the new industrial innovation centers could contribute to the development of these areas. Such centers should pool and reasonably direct available resources to the most competitive and called-for economy sectors capable to provide the best performance of end-use products output. Along with already recognized subnational leaders, agglomerations of Barnaul, Irkutsk, the Tashkent-Shimkent and Rubtsovsk-Semey transboundary industrial hubs, Jiuquan city district of Gansu province are proposed as nodes for the future development of the study space. The prospects for the Rubtsovsk-Semey hub are demonstrated in more detail. Each core of macro-regional development should have its own polymodal specialization bound as to the world economy as to the interests of Eurasian central countries that enables to mutually complement and strengthen these territories. It is emphasized that the joint strategy of development will ensure a full-fledged economic breakthrough in the ultra-continental Eurasian space.
Ecological status and postagrogenic transformation of landscapes (a case study of the Republic of Buryatia)
Authors: Belozertseva I A , Ekimovskaya O A , Sizykh A P , Atutova Zh V , Shekhovtsov A I
Published: January 2021

For the first time, the Buryatia Republic has been given a comprehensive environmental and economic assessment of post-agricultural landscapes and the desirability of returning them to agricultural circulation. Detailed geobotanical descriptions are carried out and the structural-dynamic organization features of plant communities are established, the stages of restoration succession are analyzed. Agrochemical and agrophysical studies of the soils of deposits were carried out. The characteristic is given to the features of overgrowing of post-agrarian landscapes with trees and shrubs and the state of protective forest belts. For the first time for the Buryatia Republic, the place of fallow lands in the landscape hierarchy has been identified. An original map «Use of the lands of South-Western Transbaikalia», reflecting the territorial differentiation of fallow lands, was compiled. For one of the key areas of the study, an original map was compiled «Anthropogenic and spontaneous (natural) transformations of the geosystems of the Tunkinsky depression». For the first time, an economic model has been created for the Buryatia Republic for the contribution of individual agricultural sectors to gross domestic product. The model reflects the significance of each type of product and the appropriateness of its production on post-agricultural landscapes if they return to agricultural circulation. Sociological studies of business entities on the subject of their readiness to enter into agricultural circulation and reclaim fallow lands were carried out.
Current state of vegetation of the dried bottom of the Aral Sea
Authors: Shomurodov Kh , Rakhimova T , Adilov B , Beshko N , Karimov F , Polvonov F
Published: January 2021

The rate of regression of the coastal line of Aral Sea has been revealed for the period from 1965 to 2019 with 5-year intervals. The primary communities and their succession determined by the landform, lithology, depth and salinity of groundwater have been studied. According to the TSAVI index, the dried bottom of the Aral Sea is classified as follows: the water surface, swamps, salt marshes, puffed solonchaks, areas suitable for vegetation, areas with very low, low, medium, high and very high aboveground biomass territories. The correlation between the shrinking of the sea and the formation of vegetation with very low, low, medium and high biomass territories are revealed. A map of the vegetation of the western part of dried bottom of the Aral Sea has been created with 27 plant communities belonging to 4 types of vegetation. Six salt-tolerant species perspective for the fixation of shifting sands of dried bottom of the Aral Sea were selected from the native flora. A high tolerance to sand deflation was revealed in Salsola richterii and Calligonum caput-medusae.
Current dynamics of aeolian processes in the mountain-basin relief of Russia and Mongolia (Lake Baikal basin)
Authors: Vladimirov I N , Vyrkin V B , Kobylkin D V , Sofronov A P
Published: January 2021

The paper deals with the study of the modern dynamics of aeolian processes within the mountain-basin relief of the Khubsugul region of Northern Mongolia and Southwestern Transbaikalia of Russia as exemplified by three key sections of the transboundary region united by the Selenga river basin. These studies are intended to reveal the nature of the development of aeolian massifs of different morphology and location in order to assess the ecological and geographic potential of various territories of the Lake Baikal basin. The study was carried out with a wide use of geomorphological, geobotanical, comparative-geographical methods, as well as the latest methods of remote sensing using unmanned aerial vehicles with the construction of orthophotomaps of aeolian massifs and three-dimensional models of overflying territories. Three key areas-on the eastern coast of Khubsugul, the valley of the Uure-Gol river in the Eastern Khubsugul region and at the western end of the Malkhan ridge (Mankhan-Elysu stow), differing from each other in many natural parameters, are assessed geomorphologically and geobotanically and their comparative geographical analysis was carried out. The current state of the studied sand massifs is estimated by the nature of the dynamics of aeolian processes and a preliminary forecast of their development is briefly given considering the intensity of the existing pasture load and its possible activation by analyzing the structure of the vegetation cover.
Probabilistic seismic hazard map analysis for Aceh Tenggara district and microzonation for Kutacane city
Authors: Irwandi I. , Muksin Umar , Asrillah  , Simanjuntak Andrean V H , Asrurifak
Published: January 2021

The Aceh Tenggara (Southeast Aceh) District, especially Kutacane, is located along with the main GSF (Great Sumatra Fault) system and the Tripa segment in particular based on seismic hazard map of Indonesia 2017. Therefore, the seismic hazard map needs to be updated based on the recent seismotectonic information and the latest active fault investigations. This paper discusses the updated seismic hazard map for the Aceh Tenggara district. In seismic hazard calculation, input source definition including fault characteristics, subduction zone, and seismicity background. Ground Motion Prediction Equation (GMPE) is used by the Indonesian official seismic hazard map 2017 to compute the hazard curve of strong ground shaking. Probability exceeding 2% and 10% for 50 years is chosen to calculate PGA (Peak Ground Acceleration) map on bedrock. On the other hand, Kutacane is located on a younger alluvium basin in the Holocene epoch thus site sediment amplification effect is taken into account in the microzonation calculations (local scale). The geomorphological slope is used to estimate the Vs30 distribution map. The site amplification is calculated based on PGA value on bedrock and Vs30 value on each site location. The Probabilistic Seismic Hazard Analysis (PSHA) is applied to produce seismic hazard maps as also used since many scientists and engineers in Indonesia although for critical infrastructure Neo-Deterministic Seismic Hazard Analysis (NDSHA) is suggested to be applied. The newly updated seismic hazard map can be used for the reference of infrastructure development in order to reduce the risk of disaster.
Developing land capability to reduce land degradation and disaster incident in Bendo Watershed, Banyuwangi
Authors: Bachri Syamsul , Sumarmi  , Irawan Listyo Yudha , Fathoni Mohammad Naufal , Fawaid Ahmad Mufti , Nuraini Sismi Gusty , Utomo Kresno Sastro Bangun , Aldianto Yulius Eka
Published: January 2021

Land degradation have caused decline in land productivity and triggering landslide incident in Bendo Watershed. This area has been selected as study area which represent characteristic upland area of the region. The research examines land capability analysis in order to reduce land degradation and disaster incidents and for sustainable use of land resources. The geomorphology approach was used along with sixteen of landform unit as unit sample. Further, artificial neural network models were used to classify land capabilities. Network architecture 10-8-1 was used on classification process due to the lowest error value factors. The findings of the study present that 20, 46% of Bendo watershed are prone to land degradation. Physical characteristic within area are contributing increasing land degradation. The capability classes of Bendo watershed ranges from class II to class VII. The upstream areas have erosion and intensive landslides as its limited factors, hence tend to have poor land capability classes. While the middle to downstream areas of Bendo watershed have better land capability classes with more diverse land use recommendations.
Development of calibrated tsunami evacuation models through real-world collected data: The case study of Coquimbo-La Serena, Chile
Authors: León Jorge , Mas Erick , Catalán Patricio A , Moya Luis , Gubler Alejandra , Koshimura Shunichi , Cienfuegos Rodrigo
Published: January 2021

Evacuation is considered the most important and effective method to save human lives in case of a tsunami. In recent years, significant efforts have been carried out to examine evacuation through computer-based models; nevertheless, challenges remain on examining the accuracy of these models in simulating real-world populations’ behavior. Along these lines, this paper uses a large call detail records (CDR) database to examine populations’ behaviors during a Mw 6.7 earthquake and tsunami evacuation in Coquimbo-La Serena, Chile, on January 19, 2019, and compare its outcomes with an agent-based model for the same case study. Results show partial correspondences between the model and the real-world data. While cell phone users’ rapid response to the emergency resembles the model’s assumption of rapid departures (alongside the rough evacuation direction), the evacuation rate of people in vulnerable areas significantly differs from the ‘total compliance’ (i.e. 100% evacuation rate) assumption of the model, which might lead to large human casualties in case of a real emergency.
A comparative analysis of empirical and analytical tsunami fragility functions for buildings in Tumaco, Colombia
Authors: Paez-Ramirez Juan , Lizarazo Juan , Medina Sergio , Rivas Miguel , Luna Patricia , Mas Erick , Koshimura Shunichi
Published: January 2021

The Pacific coast of Colombia has witnessed several tsunami events in the last century. However, the physical damage to structures at the time was not recorded, even when these events have brought overwhelming destruction to coastal communities. This lack of data increases uncertainties when assessing future tsunami impacts. Nonetheless, other regions of the world, which have been also affected by tsunami, have collected damage information that has been used to build empirical tsunami fragility functions. Based on a demand parameter, such as the tsunami inundation depth, a fragility function expresses the probability of building damage. Hence, regions with no recent tsunami damage cannot develop empirical fragility functions since post-disaster damage survey data is not available. One alternative for these regions is to develop analytical fragility functions out of computational nonlinear structural analysis. Reinforced concrete buildings and palafitte houses are selected to perform a comparative analysis of collapse damage assessment expressed in empirical and analytical fragility functions.
Voices from communities relocated to Tacloban North after Typhoon Yolanda
Authors: Maly E , Sakurai A , Aure F , Caintic M C I , Iuchi K
Published: January 2021

Super Typhoon Yolanda caused destruction across the Philippines and devastated communities in Tacloban City on November 8, 2013. Recovery programs in Tacloban City focused on relocating people away from heavily damaged coastal areas to new housing in resettlement sites in Tacloban North. Using an asset-based approach to consider residents’ perceptions and evaluations of their living environments and children’s schooling in these resettlement sites, and with a hypothesis that schools might function as a community asset, this research explored connections between residents’ housing sites and the roles of schools in communities five years after Yolanda. Carried out in February 2019, this research combined interviews with individual households and Focus Group Discussions with residents from four resettlement sites in Tacloban North. Preliminary findings confirmed the existence of various active connections between schools and local communities in resettlement sites, and that residents perceive schools as a community asset. As housing relocation and children’s schooling are connected and have mutual impacts within the lives of families in post-disaster resettlement, findings support the importance of post-disaster coordination of housing and education, especially in cases of relocation and displacement.
Stakeholder Behavior in Disaster Risk Reduction at the Time of Rehabilitation and Reconstruction in Aceh
Authors: Sasaki Daisuke , Iqbal Muhammad , Sofyan Hizir , Nizamuddin Nizamuddin , Affan Muzailin
Published: January 2021

The Sendai Framework for Disaster Risk Reduction, which was adopted at the Third UN World Conference on Disaster Risk Reduction in March 2015, positions understanding disaster risk as one of the four priorities for action. Also, access to disaster risk information is regarded as one of its seven global targets. Furthermore, it is widely recognized that the enhancement of disaster preparedness has great significance for achieving what is termed as “build back better.” The key research question of this study is: how does stakeholder behavior in disaster risk reduction (DRR) differ at the time of rehabilitation and reconstruction in Aceh? Since many different types of stakeholders participated in the rehabilitation and reconstruction process, there might exist some gaps in their behaviors. This study adopts text mining analysis as the methodology to examine the content of publications issued by DRR stakeholders. The authors utilize KH Coder as the analysis software and examine the three major documents, all of which have described the situation of rehabilitation and reconstruction in Aceh during the period from 2005 to 2008. As a result, we found that the Executing Agency of Rehabilitation and Reconstruction for Aceh and Nias (BRR) and the ADB tended to stress similar words in their reports, whereas Oxfam International behaved in a different manner. This may stem from the nature of each organization and, thus, we considered that the existence of coordinators who are well acquainted with every aspect of reconstruction and rehabilitation is much needed.
Affecting factors on perceived usefulness of area-business continuity management: A perspective from employees in industrial areas in Thailand
Authors: Meechang K , Leelawat N , Tang J , Ino E , Kodaka A , Chintanapakdee C , Watanabe K
Published: January 2021

The 2011 Thailand Floods heavily impacted 7 industrial complexes, in which 56.7% were Japanese companies. Many notable companies received severe damage until they had to cease their production. Area Business Continuity Management (Area-BCM) implemented in Thailand stems from this disaster which causes both private and public sectors to think about their business sustainability. The Area-BCM project is an on-going implementation in Thailand aiming to enhance collaboration among stakeholders in industrial areas for coping with upcoming threats. One of the most significant factors before launching a plan is to understand individual attitudes and perceptions pertaining to the Area-BCM project for the best practice, effective and continuous outcomes. This study aims to investigate various factors that affect the perceived usefulness (PU) about implementing Area-BCM. Our proposed research model is developed aligning with the behavioral model and factors influencing flood mitigation consisting of Subjective norms, Experience, Worry about flooding, and Flood hazard knowledge. Questionnaires were distributed to employees in the industrial areas which were flooded in 2011. The developed model was tested by Partial Least Square Structural Equation Modeling (PLS-SEM). The results consequently show that subjective norms and flood hazard knowledge significantly influence perceived usefulness. This can be implied that, in an organization, major thoughts of related people could shape individual perceptions about using a disaster management plan. Moreover, the governmental and local authorities should be a significant force, that helps support plan implementation and educate people about disaster knowledge.
Development of a multilingual educational platform for cross-nation real-time distant interaction in youth disaster preparedness between Indonesia and Japan
Authors: Koesoema A P , Irawan Y S , Egawa S , Ichsan
Published: January 2021

The increasing prevalence and cross-national nature of disasters means countries have much to learn from each other in terms of Disaster Risk Reduction (DRR). However, cross-nation mutual learning are often hindered by distance and language barriers. Japan and Indonesia, as countries with significant similarities and differences in terms of disaster profile, socioeconomic and cultural conditions, embody both the potentials and barriers for mutual learning. To help surmount these barriers, this paper describes the project plan to develop a multilingual educational platform for cross-nation, real-time distant interaction in youth disaster preparedness between Indonesia and Japan. The platform is designed for both mobile and web-based applications, with interfaces in Indonesian, English and Japanese to facilitate language barriers. The design consists of three main elements. First, an interactive assessment module is used to measure knowledge and preparedness. Second, a series of multimedia eLearning modules allow participants to increase their knowledge and capacity in DRR. Finally, a set of gamified educational materials is developed to allow an immersive and collaborative learning experience. To facilitate mutual learning across countries, this module includes an online multiplayer serious game where participants from different countries work together in various disaster simulation scenarios, utilizing skills they learnt from the eLearning modules. The use and implementation of this platform is hoped to increase local DRR capacities and awareness, grow networks of mutual learning among youth in Indonesia and Japan, and add to creative methods for DRR education. Evaluation will also increase knowledge regarding similarities, differences, and potential synergies in DRR across local and cross national levels in Indonesia and Japan.
Student Knowledge about Disaster in Vocational School and High School: Case study in Lombok, Indonesia
Authors: Dwiningrum Siti Irene Astuti , Sumunar Dyah Respati Suryo , Haryanto  , Sitompul Nopita , Setyawan Siti Luzviminda Harum Pratiwi , Sholekhah Ebni , Aswasulasikin  , Nahdi Khirjan
Published: January 2021

Indonesia is one of the disaster-prone countries. Disaster mitigation requires the role of the community. Schools have an important role in providing knowledge about disaster mitigation. The research aims to understand the level of student knowledge about the disaster. The research population were SMA / SMK in Lombok Regency, especially North Lombok, East Lombok and West Lombok. Respondents were students who were from 10 high schools; the total respondent was 779 people. To find out about student knowledge about disasters associated with six aspects, among others: 1) knowledge of disaster risk; 2) student responses to disasters; 3) disaster warning system; 4) disaster information system; 5) Local wisdom; 6) emergency planning. Data was analysed by using percentage calculations illustrated by pie charts. The results of the study concluded that based on the description of the six aspects of the disaster knowledge shows that the average level of the disaster’s knowledge has not reached more than 50% good category. The data means that schools must provide socialization that is more effective and training to students about disaster knowledge. This is very important sufficient knowledge, students and schools will play a greater role in disaster mitigation.
Tsunami evacuation decisions and behaviour: A case study of Pangandaran, Indonesia
Authors: Wargadalam R , Nakanishi H , Vidyattama Y , Black J , Suenaga Y
Published: January 2021

The lack of an effective tsunami warning system is often blamed for the high number of deaths when tsunamis hit Indonesia. However, there are other factors affecting deaths: the scale of the incoming wave; a lack of community awareness of the problem; the lack of preparedness; or the ineffective communications prior and during the evacuation. This paper aims to explore the implicit knowledge of residents’ and to enhance the understanding of tsunami awareness and preparedness associated with tsunami evacuation behaviour in the village of Pangandaran, Indonesia. A field inspection survey and a residents’ questionnaire survey were undertaken. The results show that although there is a high awareness of tsunami hazards from past experiences, advanced evacuation planning is needed to enhance preparedness and reduce tsunami risks. Increasing trust in a tsunami warning, information dissemination, and evacuation drills are required to better manage the community’s evacuation. Uninformed shelter destination and route choice results in potential congestion on the main roads in the middle of the village and this slows evacuation thereby compromising survival rates. Appropriate shelter destinations and route choices need consideration and updating in the community. Promotion of greater resident participation in tsunami exercises is also recommended to raise awareness of the need for designated evacuation plans to be rigorously implemented.
HerStory: Facilitating participatory disaster risk assessment to the single mothers of flood-prone sub-urban poor resettlement housing in the Philippines
Authors: Romero A. , Oponda I. , Saju L. , Octobre A. , Mondano L. , Palero L. , Borres R. , Piñero E. , Perante S. , Sibal E. , Degumbis M. , Cortes J. , Javier Y. , Bernal N. , Daang L.
Published: January 2021

This article summarizes the major findings of the participatory risk assessment of single mothers of Phase 1k, Kasiglahan Village, Rodriguez, Rizal. Using Participatory Capacities and Vulnerabilities Assessment (PCVA), single mothers gauged their vulnerabilities, capacities and exposure to the hazards in their community. With this, HerStory responds to the challenges of previous studies on disaster risk reduction to have a participatory, inclusive, gender-sensitive and pro-poor perspective in understanding disaster risk. The study was able to provide space and venue to the single mothers to share their own experiences in their own voice.
Social lives of tsunami walls in Japan: Concrete culture, social innovation and coastal communities
Authors: Boret Sébastien Penmellen , Gerster Julia
Published: January 2021

This paper is the beginning of a reflection on the ways in which the Great East Japan Disaster (2011) might have changed people’s perception of seawalls and hard coastal defence in Japan. A highly developed society that is prone to frequent large tsunamis and storm surges, Japan’s spending on physical coastal defence has few equals around the world. The development of sea defence became a priority during the 1960-70s when coastal engineers and related agencies developed national standards. One of the chief strategies has been the edification of seawalls and other hard structures, which today surround more than 40% of Japan’s coastlines. This technological advancement might have created a general sentiment of security and trust in the ability of these coastal structures to protect coastal communities, their infrastructures and their nuclear plants. On March 11 2011, however, this general sense of safety was hardly shaken by a M9 earthquake and its ensuing tsunami taking away the lives of over 15,000 individuals and causing a material loss of over 210 billion dollars. If experts had anticipated such a large earthquake, the height of the tsunami waves and the extent of the damaged suffered along the coast of northeast Japan surpassed even the most pessimistic predictions. Reflecting on the impact of this tragedy, this paper is a first attempt to appreciate whether Japanese people’s perception of and approaches to seawalls and other coastal defences might have changed as a result. The first part of this paper provides a brief analytical overview of the culture of sea defence and its socio-economic significance in Japanese society. The second part examines more specifically the ways in which seawalls might have influenced people’s behaviour during the events of the Great East Japan Earthquake, including their creating a false-sense of security. Finally, the third part focuses on relatively innovative approaches to coastal defence in post-disaster Japan, with a particular focus on a national project known as the Great Forest Wall. Rather than its engineering efficacy, the interest in this project lies in the ways in which the project might inform us of changing people relationships and ideas with coastal defence.
Study on the design evolution of longeval lock since the Ming Dynasty
Authors: Yang Fujuan , Yao Shanliang
Published: January 2021

This paper explores the connotation of longeval lock design since the Ming Dynasty, and shows people's the core value of longeval lock. Firstly, by comparing the difference between Ming, Qing longeval locks and modern longeval locks, the paper analyzes the evolution law of longeval lock, and learns that the form of longeval lock is from complex to visual, material from single advance to diversification, process from natural advance to industrialization, and meaning is also from single advance to diversified evolution conclusion, from which it embodies the core value of longeval lock.
Development and Application of the Sample Support in Transmission Electron Microscopy
Authors: Pan Hengyu
Published: January 2021

Cryogenic electron microscopy is becoming an increasingly popular technology that allows us to observe the molecules in high-resolution details. With this refined way to study the structures in scientific researches, the observation of the molecules will be expected to make improvements. The conventional methods, such as the X-ray crystallography and the nuclear magnetic resonance spectroscopy, provide the basic observation of ground-state molecules and the measurement of various small molecules. But both of them contain flaws discovered in the continuing development process. Therefore, the application of cryo-EM becomes a broader area to explore. In this review, we will give an overall understanding of the cryogenic electron microscopy. We will discuss the intention behind the invention of the cryo-EM and introduce the main workflow of the experiments. In addition, we will discuss the methods to prepare the sample in a well-condition and compare them among different groups of experiments. More importantly, we will discuss the application of the graphene in cryo-EM and evaluate possible improvements in future development.
Analysis of pH and Conductivity Variation Characteristics of Coal Gangue Used inFreeway Subgrade and Its Correlation
Authors: Song Guangyuan , Hui Bing , Cui Yanji , Ran Deqin , Li Yanpei , Zhang Wenjun , Song Haimin , Fan Xiangxi , Meng Lingxiao
Published: January 2021

Coal gangue is a common solid waste in coal mining area, which causes great environmental pollution. Using coal gangue as filling material of highway subgrade can turn waste into treasure. In order to study the greening situation of the road section with coal gangue instead of soil as subgrade filling material, the pH and electrical conductivity (EC) were studied, The electrical conductivity (EC) and pH value of coal gangue used in a highway subgrade test section under different soaking time and initial pH solution were measured, and their change characteristics were analyzed. Both of them increased with the extension of time, and the change trend of EC was more severe. The results of correlation analysis showed that pH and EC were highly positively correlated, and the correlation coefficients were 0.7941, 0.8198 and 0.8639 at initial ph4.1, 5.2 and 6.5, respectively. On the whole, pH is proportional to EC. By mastering the change characteristics and correlation between pH and conductivity of coal gangue under different pH conditions, it can provide certain data and theoretical support for the greening research of coal gangue as subgrade filler.
Numerical analysis of excavation stability of transfer station of Jinan Metro
Authors: Li Hu , Wei Ruchun , Zhu Henghua , Jia Chao , Shang Hao , Wang Xin , Li Shuang , Shi Guoping
Published: January 2021

The influence of the excavating deformation on the surrounding environment should be extremely controlled in the excavation of metro transfer station and it is important to study the stability of excavation. Here we establish three-dimensional finite element models with the fluid-solid coupling effect aimed to perform analysis on the stability of excavation based on the background of the Jinan metro transfer station in this paper. The location is determined through simulation in which the maximum horizontal displacement of diaphragm wall appears as well as the maximum ground surface settlement. The research results can provide useful reference in analysis and calculation for other similar underground engineering excavation and construction design.
Dynamic changes in maize NDVI and its response to drought in Liaoning province from 1998 to 2018
Authors: Ji Ruipeng , Yu Wenying , Wang Qian , Liu Dongming , Feng Rui , Wu Jinwen , Zhang Yushu
Published: January 2021

In order to study the normalized difference vegetation index (NDVI) of maize and its response to drought, this paper analysed the relationship between maize NDVI and drought in Liaoning province. Based on the meteorological data and NDVI data from 1998 to 2018, this paper analysed the spatial and temporal variation of maize NDVI and identified the drought occurrence in the growing season with the evaporative demand drought index (EDDI). The effect of drought disaster on maize NDVI was carried out by comparing maize NDVI and EDDI. The results could provide a basis for drought loss assessment and drought disaster prevention of maize.
Discussion on Ecological Protection Technology of High and Steep Slope of Expressway
Authors: Wei Chungen , Huang Kaicheng , Zhang Nan , Qin Xiaochun , Siddique Aboubakar
Published: January 2021

The construction and development of expressways have played a positive role in promoting regional economic and social development, but the construction process and behaviour have caused disturbance to the original landform and caused various damages to the slope. It is currently reasonable protection of the slope is one of the important works of highway construction. This article takes the Huizhou-Qingyuan section of the Shan-Zhan Expressway as an example, analyses and studies different slope ecology from the three aspects of the slope ecological protection mechanism, the slope ecological protection difficulties and the slope ecological restoration design, combined with the current situation of the slope along the line and the main restoration difficulties. This article studies the principles, forms, characteristics of protection technology, and the design of typical slope ecological restoration. The results show that reasonable ecological protection of slopes according to local conditions can achieve slope protection, prevent soil erosion, restore and improve the local ecological environment, and improve highways. The integration and coordination of road landscape and natural landscape are of great significance to ecological environmental protection and driving safety.
Research status and Prospect of initial damage of rock mass in laboratory
Authors: Liu Cong , Yao Chunling , Zhang Songyuan , Cheng Yong , Nie Qi , Liu Zhennan
Published: January 2021

Rock has experienced hundreds of millions of years of geological activities, and there must be defects of multi genesis, multi type and multi-scale, which often become the core factor limiting the function and safety of rock. In this paper, the initial damage of rock mass is taken as the research object. Based on the literature research, the development process of initial damage of rock mass in the laboratory is summarized. The scale classification, fracture preparation method and fracture observation method of initial damage are described respectively. On this basis, this paper analyzes the problems encountered in the current research of initial damage means, points out the key areas that should be paid attention to in the future, and lays a foundation for the further development of rock mechanics.
Research on Construction of Industrial Environment System of Cross-border E-commerce in Free Trade Zone Based on Geological Environment Assessment Method
Authors: Yang Ning , Wang Chuang , Fu Yijie
Published: January 2021

Based on the regional engineering geological environment conditions, the thesis divides the engineering geological environment evaluation types into single-element evaluation and comprehensive evaluation, and uses analytic hierarchy process and fuzzy mathematical model to carry out comprehensive evaluation of engineering geological environment. On the basis of single-element evaluation, comprehensively analyze the factors that affect the stability of the site, the factors that determine the stability of the foundation, the degree of groundwater impact, and the factors of the drainage conditions of the site. In order to conduct a comprehensive analysis. Finally, combined with the results of single factor evaluation and comprehensive evaluation, it analyses it impact on the cross-border e-commerce industrial environment of the free trade zone.
Research on spatial feature differentiation of basin river network geomorphology based on multifractal algorithm
Authors: Wang Shengwei , Ji Hao , Wang Xin
Published: January 2021

Using multi-fractal algorithm to scientifically quantify watershed morphology is one of the hot spots of geomorphology research. In this paper, based on the DEM data of the Northwest China Basin (Daxiahe), the remote sensing images of the Daxia River Basin were processed. The multi-fractal model was used to extract and analyze the multi-fractal characteristics and quantified characteristic parameters of the Daxia River and 7 sub-basins of the river system, and discussed the geomorphic significance of the spatial characteristics of the watershed. The results showed that the multi-fractal spectrum of the watershed was in the shape of a right hook (Δf < 0). The span of the singular index Δa was between 0.860 and 1.160, and the value was relatively small. This indicated that the Daxia River watershed was evenly distributed in most areas, and the water system was not fully developed. The average values of the multi-fractal spectral height difference (Δf) and the singular index distribution range (Δa) from downstream to upstream were increasing (1.184∼1.570) and decreasing (1.160∼0.933) in sequence, which indicated that the proportion of the geomorphic unit with the smallest slope in the watershed increased sequentially from downstream to upstream, and the change of geomorphic shape from upstream to downstream tended to be complicated. This study is of great significance to effectively solve the complex problems in geomorphology and to master the characteristics and laws of various geomorphological phenomena.
Chemical analysis of lake water quality
Authors: He Yiqun
Published: January 2021

Mono Lake is a large salt lake located in the Great Basin of North America. With the change of climatic conditions and diversion scheme, the inflow of fresh water also varies greatly, which makes the content of anionic cation in Mono Lake also changes. We detect the change of material concentration and anion content in Mono Lake by the change of geographical position and water level of Mono Lake. We also compared the content of anions and cations in average spring water and average stream water. Find out the characteristics of the ion content in Mono Lake and try to speculate the reasons. Through the analysis of the relationship between different anions and cations, PH concentration factor and molarity change in ordinary water, and the inference of the cause of their change, the changes of anions and cations composition in mono Lake Water with the change of water level were detected.
Characteristical analysis of tidal and residual currents in the sea area around Tangshan international tourism island
Authors: Yang Jinzhi , Ding Wenping , Cui Jiaxing , Guo Shan
Published: January 2021

For the sea area around Tangshan international tourism island, continuous conservation of ocean current at 3 stations were carried out. The harmonic analysis was conducted based on the measured data. According to the harmonic analysis results, the flow velocity, type, movement form of tidal current and residual current distribution were researched finely. The results show that the sea area was dominated by regular semi-diurnal tidal currents. The movement form of tidal current was reciprocating current, and the trend of residual current presented regional differences. The research had an important practical significance for the resource development and marine engineering construction of the sea area.
Research Status and Future Development Direction of Chinese Sports and Geographical Environment
Authors: Qiu Zhenyu
Published: January 2021

The formation and development of sports events originate from a specific geographical environment. At present, the research on sports and geographical environment in China is relatively weak compared with foreign countries, and the breadth and depth of research are also a certain gap. The related research of the environment is integrated, and the research in this field is mainly concentrated on the following aspects: 1. The impact of the geographical environment on sports, including the relationship between the generation of sports events and the geographical environment, and the geographical environment on the performance of sports competitions Impact, climatic conditions on sports, etc.; 2. The impact of geographic environment on sports participants includes the training methods, methods and physiological functions of athlete groups, and the effects of physical exercisers' physical behavior and physical health; 3. The relationship between sports and environmental protection and other aspects. At the same time, it also made a rough prediction on the future research directions in the field of sports and geographical environment, in order to be able to contribute to the research in this field.
Reliability analysis of numerical simulation of compression of coarse-grained soil foundation
Authors: Bai Xiyu , Zhang Wenxian
Published: January 2021

In order to study the reliability of numerical analysis in the calculation of foundation compression, this paper takes the coarse-grained soil foundation of a project in Milin, Tibet as the research object, uses the mechanical parameters obtained from the large-scale triaxial test and the numerical analysis of ABAQUS software to analyze and compare the compression value and load. It is considered that the load and compression situation in the numerical analysis are relatively reliable, which comprehensively reflect the stress and strain of soil under overlying load. It can be further studied according to the change of boundary conditions in engineering application.
Research on Express Information Extraction Based on Multiple Sequence Labeling Models
Authors: Yu Bihui , Wang Ke
Published: January 2021

With the popularity of online shopping, the logistics industry has developed rapidly. Major logistics companies have greater business needs to improve the efficiency of express sorting centers. Therefore, the technology of optimizing the efficiency of the express sorting system in the logistics industry and reducing the cost of time for customers to fill out express orders has received increasing attention from the society. The research work carried out in this paper is based on deep learning using natural language processing technology to extract express single text information, structured extraction of names and mobile phone numbers and addresses. The main content is that the express information structured extraction system automatically extracts information such as name, telephone, province, city, district, and detailed address. The docking of the express delivery sorting business system will help improve the logistics industry's operational capabilities. In this paper, four sets of sequence labeling models are constructed. Through multiple sets of data evaluation, it is shown that the model based on ERNIE and the learning rate decay strategy using Adam optimizer is superior to the current CNN, RNN, LSTM models. The highest F1 of the model constructed in this paper reaches 0.99473.
An FPGA-Based System for Remote Data Monitoring of Underwater Gravity Measurement
Authors: Liu Yilin , Yu Ruihang , Cao Juliang
Published: January 2021

Considering that underwater gravity measurement has the characteristics of a large amount of data and poor communication conditions, a data transmission link based on FPGA and wireless network is designed. The build of the wireless network could get rid of the dependence on cable and increase the adaptability to the working environment onboard. The multi-level wireless network is easy to expand and the compatibility and extension of equipment are better than the traditional wired transmission by cables, which enables devices to keep safe by working in the room rather than on the deck. In this condition, FPGA (Field Programmable Gate Array) can be used to preprocess the gravimeter data, and process the original miscellaneous data information into a short and effective data frame, which effectively reduces the communication pressure and makes the data transited by wireless network possible. The experiment shows that the design can effectively transmit the effective data collected by the deep-sea gravimeter and display the data in real-time on the remote computer when the mobile network bandwidth is about 1Mbps.
Discussion on efficient exploitation technology of tight glutenite reservoir in Daqing
Authors: Shui Haiyan
Published: January 2021

In XuShen gas field, due to the big lateral change of reservoir, accurately find the glutenite reservoir dessert area is difficult, Reservoir density and physical property is poor. Vertical Wells are the main wells in developed gas Wells, Inconsistent activity appeared in the process of mining action: high Shut-in pressure. low gas well production and poor stable yield ability. In urgent to tackle key problems are capacity breakthrough long-term stable process and techniques of high economic benefit. By carrying dual branch horizontal well development, successfully realized effective use of reservoir and high-efficient development of gas field.
Research on A New Type of Excitation Device Applied to Structural Vibration Modal Identification and Structural Vibration Reduction
Authors: Fan Xinkai
Published: January 2021

In order to reduce the frequency of major safety accidents in the bridge construction process, and to realize the real-time monitoring and accurate monitoring of the bridge construction process, a novel excitation device for vibration modal identification and structural vibration reduction is proposed in this paper. The excitation device mainly takes the rotating eccentric mass actuator as the core, uses the centrifugal force of the rotating mechanism to provide internal excitation to the structure, and has the advantages of easy control, low energy consumption, low cost and so on. The research results show that the exciting device has a wide application prospect in structural vibration modal identification and structural vibration reduction, and can effectively reduce the frequency of major safety accidents in the process of bridge construction.
Construction Technology of Concrete Composite Box-beams Strengthened with Pre-stressed CFRP Sheet
Authors: Long Xincan , Zhou Chuanlin
Published: January 2021

CFRP plate is a new type of material with a serial of advantages such as high tensile strength, small contraction, environmental corrosion resistance and etc. The reinforced technology of CFRP plate not only can effectively improve the bearing capacity of components, stiffness, crack resistance and ductility, but also the original size and weight increase very little. Based on strengthen Xinshu Bridge, the paper introduced in detail the construction process and construction method, which is of great significance for guiding construction.
Additive manufacturing technology and its application in die manufacturing
Authors: Hao Botao , Lin Guomin
Published: January 2021

The increase of material manufacturing because of its direct forming characteristics and is widely used in aerospace, automobile manufacturing, mold manufacturing, medical equipment and other fields, this article, based on the characteristics and advantages of increasing material manufacturing, molding principle to increase material manufacturing technology and process as the research object, analyzes the material manufacturing technology on the accompanying cooling water mold, tire mold and the application of the large mold manufacturing.
Studies on the perspectives of replacing the classic energy plants with Jerusalem artichoke and Sweet Sorghum, analyzing the impact on the conservation of ecosystems
Authors: Nenciu F , Vladut V
Published: January 2021

To accurately predict the impact of various species of plants on environment is a very difficult task, because their characteristics and specificities together with the external conditions of climate and fauna lead to very complicated systems that are difficult to analyze. The paper aims to assess two technical plants that may be used for the production of biofuels, namely Jerusalem artichoke and Sweet sorghum in evaluating fuel production efficiency and the possibility of being regarded as a viable solution for ecosystem conservation.
Electric Vehicles over Contemporary Combustion Engines
Authors: Upadhyay Abhishek , Dalal Mihir , Sanghvi Naman , Singh Vaibhav , Nair Sheeja , Scurtu Ionut Cristian , Dragan Cristian
Published: January 2021

IC engine or internal combustion engine have been dominating the automotive since its inception. Although it seems quite skeptical but the first electric vehicle was developed around 1890 by William Morrison. During early 1900s around 40% of cars were electric, 38% on steam and mere 22% on gasoline. Due to range, capacity and also power produced by electric vehicles made them obsolete. The research paper focuses on how electric vehicles are not only comparable but better than internal combustion engine in many ways. Various studies and Simulink proves that electric vehicle is going to be the future of transportation.