Science Discovery最新文献

{"title":"Discovery Science: 24th International Conference, DS 2021, Halifax, NS, Canada, October 11–13, 2021, Proceedings","authors":"C. Damke, E. Hüllermeier","doi":"10.1007/978-3-030-88942-5","DOIUrl":"https://doi.org/10.1007/978-3-030-88942-5","url":null,"abstract":"","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86418946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Discussion on the Installation of Safety Action Failure Warning System in the Power Supply System of Beijing Winter Olympic Games","authors":"Guo Chunping","doi":"10.11648/J.SD.20210902.14","DOIUrl":"https://doi.org/10.11648/J.SD.20210902.14","url":null,"abstract":"The 2022 Beijing Winter Olympic Games is the first Winter Olympic Games that China has applied to host. It not only symbolizes the strength of China's sports cause, but also shows the strength of China's national strength. In order to ensure a safe and reliable power supply for the Beijing Winter Olympics, this paper analyzes the possible shortcomings of anti-violation in\"three protection\", \"throw protection\", technical standards of the power supply system of Beijing 2022 Winter Olympic Games, listed the fire accident lessons of Ice and Snow Museum of Taitai mountain in Taiyuan, and puts forward the method of the Winter Olympic Games to make up the\"short board of anti-violation\". For example, adding action failure warning system to the powe rsupply system, working with technical experts, making up the short board of anti-violation to prevent and resolving the professional risks of illegal electrical. At the same time, the paper puts forward some technical ideas to prevent the violation of regulations, which will add a layer of insurance for the power guarantee and safe electricity consumption of the Winter Olympic Games.","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"72 1","pages":"43"},"PeriodicalIF":0.0,"publicationDate":"2021-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86342136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring and Analysis of Drug Resistance of Yersinia in Fresh Meat","authors":"L. Guihua, Z. Weiyu, H. Xin, Gong Yunwei","doi":"10.11648/J.SD.20210902.12","DOIUrl":"https://doi.org/10.11648/J.SD.20210902.12","url":null,"abstract":"Objective To monitor the drug resistance status of yersinia isolates from fresh meat, grasp the drug resistance spectrum and trend of Yersinia isolates in Our province, and provide important reference data for guiding the rational application of antibiotics in human clinical practice and controlling the spread of drug resistant strains. Methods A total of 600 pieces of fresh pork, beef and chicken were collected from several farmers' markets and supermarkets in Changchun every month for 15 months from August 18th to October 19th. 80 strains of Yersinia strains were detected, and MIC concentrations of drug resistance were detected by microbroth dilution with 15 antibiotic sensitive plates. Results 80 strains of Yersinia strains were counted. The total drug resistance rate of Yersinia pestis was 98.8%, and cefazolin (CFZ) had the highest drug resistance rate of 92.5.% (74/80). Erythromycin (ERY) was followed by 58.8% (47/80). Ampicillin (AMP) 57.5% (46/80); Naproxil acid (NAL) and cefoxitin (CFX) were 28.8 (23/80) and were somewhat resistant to other antibiotics. But all strains were sensitive to imipenem (IMP) and gentamicin (GEN). There were 28 strains with multiple drug resistance, accounting for 35.4% (28/79). Conclusion There are multiple antibiotic resistance in Yersinia strains in this monitoring, and the multiple drug resistance is serious and the resistance spectrum is diverse. In order to ensure food safety and human health, great attention should be paid to and enhanced drug resistance monitoring of Yersinia.","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82888906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Safety Assessment of Rigid Frame Cantilever Construction Based on Matter-Element and Extension","authors":"Zhu Qinghua, Tian Zhongchu","doi":"10.11648/J.SD.20210902.13","DOIUrl":"https://doi.org/10.11648/J.SD.20210902.13","url":null,"abstract":"In order to effectively evaluate the safety status of the cantilever construction of a large-span rigid frame bridge, this paper takes a four-span rigid frame bridge as the engineering background, selects the failure probability of the cantilever construction, the natural environment, the cantilever construction operation, and the management level as the evaluation factors and divides the possibility level into Five levels, an extension model is established to evaluate the cantilever construction of the bridge. This paper first uses fuzzy comprehensive evaluation to quantify the natural environment and cantilever construction technology, then calculates the failure probability of the bridge cantilever construction based on Monte Carlo theory, and finally scores according to the management level of the management system. Invite relevant experts to obtain the weight set of each evaluation factor through the 1-9 scale method, and use the goodness evaluation method in the matter-element extension method for evaluation. The results show that the safety assessment result of the cantilever construction of the bridge is a medium risk, which provides a reliable basis for predicting and avoiding risks. Based on the matter-element extension method, the rigid frame cantilever construction safety assessment takes into account the uncertainty and ambiguity of failure, and more objectively reflects the safety status of the cantilever construction during the construction period. The calculation results of different safety evaluation models are compared with the results of this paper, which verifies the feasibility and effectiveness of the matter-element extension theory applied to the safety evaluation of cantilever construction.","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82762030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Meta-analysis of the External Treatment of Traditional Chinese Medicine for Granulomatous Mastitis","authors":"Liang Hongyi, Chen Hanhan","doi":"10.11648/J.SD.20210901.14","DOIUrl":"https://doi.org/10.11648/J.SD.20210901.14","url":null,"abstract":"Objective: to systematically evaluate the clinical efficacy of external treatment of granulomatous mastitis (including clinical efficiency and the change of mass size). Methods: the computer was used to search CNKI, Wanfang database, VIP net, CBM, PubMed and Embase, and it was used to search and select the clinical randomized controlled trials of treating granulomatous mastitis by external treatment of traditional Chinese medicine, the retrieval time limit was from the establishment of the database to December 2020, and the key words were granulomatous mastitis, external treatment of traditional Chinese medicine. After selecting literatures, extracting datas and evaluating the risk of bias included in the study, the data included in the study were analyzed by RevMan5.3 software. Results: Seven clinical randomized controlled trials were included and 600 patients met the inclusion criteria. Seven of the trials were effective observations, and four of them were tumor size observations. There were 310 cases in the experimental group and 290 cases in the control group. All the included documents were Chinese literature. The results of the study showed that the effective rate of the experimental group (combined with the external treatment of traditional Chinese medicine) for granulomatous mastitis was 95.9%, which was significantly higher than that of the control group (without the external treatment of traditional Chinese medicine). The effective rate was 82.8% [95% CI (1.02, 1.22), Z=2.41, P=0.02<0.05]. The experimental group (combined with the external treatment of traditional Chinese medicine) had a significantly higher degree of the tumor size recovery than the control group (without the external treatment of traditional Chinese medicine) [95% CI (-2.05, -1.83), Z=34.91, P<0.00001]. Conclusion: the external treatment of granulomatous mastitis had a good clinical effect. It not only improved the clinical efficiency, but also effectively reduced the size of breast mass, which was worthy of clinical promotion. However, due to the low quality of clinical trials, further verification was needed.","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88339561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of Interference Effect of Wind Pressure on Roof of Multi-storey Residential Buildings","authors":"X. Luan, Peng Huang","doi":"10.11648/J.SD.20210901.13","DOIUrl":"https://doi.org/10.11648/J.SD.20210901.13","url":null,"abstract":"In this paper, a series of wind tunnel experiments were carried out on the rigid model of 5-6 storey residential buildings to study the influence of the location, spacing and wind direction of the buildings on the roof wind pressure of multi-storey residential buildings. The test results show that the maximum average wind pressure and extreme negative wind pressure of a single building occur in the roof ridge area at the corner and both ends of the roof, taking a multi-storey building with length × width × height of 60m×12m×20m as an example. For the buildings with three rows and three columns, when the building is located at the corner, the most unfavorable wind direction is 30°, 210°, and 330°. The most unfavorable extreme value of negative wind pressure is -8.72. The negative wind pressure coefficient of the most unfavorable extreme value of the building roof at the corner position and the middle position of the first row decreased with the length-width ratio and the spacing increased. The negative wind pressure coefficient of the most unfavorable extreme value of the building roof at the edge and middle of the second row did not change significantly with the increase of length-width ratio but increased with the increase of space. In the corner area of the roof, the interference factor of the corner position and the middle position of the first row decreased with the space, while the interference factor of the edge position and the middle position of the second row increased with the space. The variation trend of the middle area of the roof is the same as that of the corner area, but the interference factor is generally small. The interference factor of the wall area is always greater than 1.0.","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80429348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the Good Wind Characteristics over a Large Central City by Laser Radar Measurement","authors":"L. Yuandong, Quan Yong","doi":"10.11648/J.SD.20210901.12","DOIUrl":"https://doi.org/10.11648/J.SD.20210901.12","url":null,"abstract":"In recent years, the process of urbanization in my country has accelerated, the density of buildings in large cities has been increasing, and the height of buildings has also increased, resulting in an increasingly complex wind environment in the city center. An accurate and reasonable description of the characteristics of the wind field within the height of the atmospheric boundary layer in the city center is very important for determining the wind load of the high-rise building structure. This paper uses Windcube 100S Doppler laser wind measurement radar, taking Shanghai as an example, to carry out long-term actual measurement of good wind in the height range of 50m~1200m above Tongji University Wind Engineering Hall and obtain specific and detailed observation data. The time history of wind speed and direction in July and December 2019 is analyzed, and the average wind speed profile and average wind direction profile classified by incoming direction are studied, and the variation law of ground roughness index is obtained. The results show that there is no significant difference in the ground roughness index between different wind directions and seasons. The fitting values of ground roughness index in different directions for heights below 250m are greater than corresponding values for heights above 250m in the same direction, and are greater than the load specification values under class D landforms.","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85549953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Shoppers’ Psychology and Behavior in Public Space of the Commercial Building","authors":"Gong Wendi, Zheng Yan","doi":"10.11648/J.SD.20200806.15","DOIUrl":"https://doi.org/10.11648/J.SD.20200806.15","url":null,"abstract":"In the context of continuous innovation in global business formats, our country's commercial architectural design is always exploring and moving forward at the same time. In this paper, large commercial buildings in Guangzhou and Hong Kong will be selected as research Subjects. The psychological and behavioral patterns of shoppers in the public spaces of these commercial buildings will also be analyzed and studied, which mainly through reading literature and going to the site, and also including questionnaire method. In this process, the psychological needs of shoppers for public space in large commercial buildings will be investigated, along with the behavioral effects of different modes of public space in large commercial buildings on shoppers. To sum up, it is to study the interaction between the psychology and behavior of shoppers and the public space of commercial buildings. Through the conclusion, it is found that the environment and people are always in a complementary relationship, and human psychology and behavior should be the starting point and destination of environmental design. It is hoped that the environment design and human psychology and behavior are studied as a more direct relationship, so as to bring some inspiration to the design of public space in large commercial buildings.","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78082001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Vehicle Scheduling Problem of Multi Warehouse Collaborative Distribution and Its Application","authors":"Kewei Chen, F. Dong, Xusheng Wang, Yuecong Zhu, Xiaomin Chu, K. Hirota","doi":"10.11648/j.sd.20210906.31","DOIUrl":"https://doi.org/10.11648/j.sd.20210906.31","url":null,"abstract":": In the modern society with highly developed logistics, while paying attention to structural and functional strategic layout and global scale services, it is also our ultimate goal to pursue efficient transportation / high-quality logistics services, reduce logistics transportation costs and reduce CO 2 emissions. This paper proposes a new concept of multi warehouse collaborative distribution Vehicle Dispatching Problem (VDP/MD) and its customization","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74193113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inspection and Analysis of Air Quality Forecast Effect by Using 4 Years Data in Ningxia Base on the Newest National Standard","authors":"Shao Jian, Yang Yuanyuan, Chen Min, Du Qingyang","doi":"10.11648/J.SD.20210903.14","DOIUrl":"https://doi.org/10.11648/J.SD.20210903.14","url":null,"abstract":"","PeriodicalId":21652,"journal":{"name":"Science Discovery","volume":"50 1","pages":"108"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88232501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}