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China Accelerating Development of Two Large Reusable Rocket Models
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《International Journal of Plant Engineering and Management》 2024年第1期63-64,共2页
BEIJING,March 12(Xinhua)——China′s development of both 4⁃meter⁃diameter and 5⁃meter⁃diameter reusable rockets is being accelerated,with their inaugural flights scheduled for 2025 and 2026,respectively.The manufactur... BEIJING,March 12(Xinhua)——China′s development of both 4⁃meter⁃diameter and 5⁃meter⁃diameter reusable rockets is being accelerated,with their inaugural flights scheduled for 2025 and 2026,respectively.The manufacturing of these two new large reusable launching vehicle models is a response to growing demand in the commercial space market,said the China Aerospace Science and Technology Corporation. 展开更多
关键词 ROCKET usable scheduled
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Estimating Usable-Security Through Hesitant Fuzzy Linguistic Term Sets Based Technique
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作者 Abdulaziz Attaallah Raees Ahmad Khan 《Computers, Materials & Continua》 SCIE EI 2022年第3期5683-5705,共23页
The apparent contradiction between usability and security has been discussed in the literature for several years.This continuous trade-off requires be acknowledging and handling whenever security solutions are introdu... The apparent contradiction between usability and security has been discussed in the literature for several years.This continuous trade-off requires be acknowledging and handling whenever security solutions are introduced.However,some progressive analysts point out that present security solutions are usually very difficult for several users,and they have expressed a willingness to simplify the security product user experience.Usable security is still mostly unexplored territory in computer science.Which we are all aware with security and usability on many levels,usable security has received little operational attention.Companies have recently focused primarily on usable security.As consumers prefer to discard unsatisfactory solutions,attaining well-balanced degrees of both is a prerequisite for adequate security.Usability should be examined from the viewpoint of security to be properly assessed.The aim of this research study is to explore and discuss universally accepted and solutionindependent factors influencing the perceived usable-security of institutional websites.An integrated Hesitant Fuzzy Linguistic term sets based technique was chosen as the methodology,and the experts and academicians opinion were collected.The use of predetermined selection criteria resulted in the compilation of statistical findings and were used to determine the usable-security of five different instituational websites. 展开更多
关键词 usable security ACCESSIBILITY expert evaluation usability criteria fuzzy logic
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All Weather-Usable Wearable Dual Energy Harvester for Outdoor Sustainable Operation
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作者 Yeongju Jung Jiyong Ahn +7 位作者 Ji-Seok Kim Junhyuk Bang Minwoo Kim Seongmin Jeong Jinwoo Lee Seonggeun Han Il-Kwon Oh Seung Hwan Ko 《SusMat》 2025年第1期159-170,共12页
Sustainable power sources for outdoor wearable electronics are essential for the continuous operation of wearable devices.However,the current lack of engineering design that can harvest energy regardless of weather co... Sustainable power sources for outdoor wearable electronics are essential for the continuous operation of wearable devices.However,the current lack of engineering design that can harvest energy regardless of weather conditions presents a significant challenge.In this regard,this study introduces a wearable,breathable all-weather usable dual energy harvester(AWuDEH)that can seamlessly generate electrical energy regardless of weather conditions.In this study,the AWuDEH integrated with the thermoelectric generator and the droplet-based electricity generator is demonstrated.The AWuDEH,especially engineered with a bi-functional top substrate for radiative cooling and electrification,achieves sustainable energy harvesting outdoors,thereby addressing the conventional challenge associated with the necessity for separate energy harvesters tailored to outdoor usage contingent on weather conditions.The device reaches a maximum power output of 14.6μW cm^(-2)under simulated sunny conditions and generates a much more enhanced thermoelectric power of 74.78μW cm^(-2)and a droplet-based electric power of 256.25 mW m^(-2)in rainy conditions.As proof,this study developed self-powered wearable electronics capable of acquiring physiological signals in simulated outdoor scenarios.This study presents a promising advancement in wearable technology,offering a potent solution for sustainable energy harvesting independent of weather conditions. 展开更多
关键词 all-weather usable droplet-based electricity generator hybrid architecture outdoor sustainable operation thermoelectric generator
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Chinese Society of Clinical Oncology Non-small Cell Lung Cancer(CSCO NSCLC)guidelines in 2024:key update on the management of early and locally advanced NSCLC
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作者 Siyuan Chen Zhijie Wang Boyang Sun 《Cancer Biology & Medicine》 2025年第3期191-196,共6页
The Chinese Society of Clinical Oncology Non-small Cell Lung Cancer(CSCO NSCLC)guidelines were first published in 2016,ranking among the earliest-released guidelines within the CSCO series.In 2020 the CSCO published s... The Chinese Society of Clinical Oncology Non-small Cell Lung Cancer(CSCO NSCLC)guidelines were first published in 2016,ranking among the earliest-released guidelines within the CSCO series.In 2020 the CSCO published separate guidelines for NSCLC and small cell lung cancer(SCLC)for the first time to improve clinical usability. 展开更多
关键词 improve clinical usability Clinical Usability Chinese Society Clinical Oncology Non Small Cell Lung Cancer Update CSCO NSCLC Guidelines Early NSCLC Locally Advanced NSCLC
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Acceptability and impact of computerised cognitive training on mental health and cognitive skills in schizophrenia:a double-blind controlled trial
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作者 Elahe Fathi Azar Hooshang Mirzaie +1 位作者 Samaneh Hosseinzadeh Hojjat Allah Haghgoo 《General Psychiatry》 2025年第2期113-122,共10页
Background Schizophrenia is characterised by pervasive cognitive deficits that significantly impair daily functioning and quality of life.Pharmacological treatments have limited efficacy in addressing these deficits,h... Background Schizophrenia is characterised by pervasive cognitive deficits that significantly impair daily functioning and quality of life.Pharmacological treatments have limited efficacy in addressing these deficits,highlighting the need for adjunctive interventions like computerised cognitive training(CCT).Aims This study aimed to evaluate the effects of a 30-session CCT programme on mental well-being and cognitive performance in individuals with schizophrenia.Additionally,it assessed the usability and acceptability of CCT in this population.Methods A double-blind,randomised clinical trial was conducted with 54 participants assigned to intervention and control groups.Cognitive and mental health outcomes were assessed using validated tools such as the Depression Anxiety Stress Scale 21,the Warwick-Edinburgh Mental Wellbeing Scale and the Cambridge Neuropsychological Test Automated Battery.Usability was measured with the System Usability Scale(SUS).Assessments were conducted at baseline,post-intervention and 3 months post-follow-up.Results The CCT intervention significantly improved mental well-being,reduced stress and enhanced working memory(paired associate learning,spatial working memory and spatial span)compared with controls.However,no significant effects were observed for anxiety,depression or executive function.Usability scores were high(SUS=83.51),and compliance rates were strong(92.7%),indicating favourable participant engagement.Conclusion CCT demonstrated potential as an adjunctive treatment for schizophrenia,with significant improvements in targeted cognitive and mental health domains.The high usability and compliance rates support its feasibility for broader implementation.Further research is needed to optimise protocols and explore long-term benefits.CCT offers a promising approach to addressing mental health and cognitive challenges in schizophrenia,particularly for stress and working memory.Its usability and acceptability suggest it could be seamlessly integrated into clinical practice. 展开更多
关键词 cognitive deficits usability computerised cognitive training cct aims SCHIZOPHRENIA cognitive performance ACCEPTABILITY computerized cognitive training mental well being
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Evaluating the impact of virtual reality on reducing restrictive practices in psychiatric wards
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作者 Akpoveta Eguono Deborah Uchenna Esther Okpete Haewon Byeon 《World Journal of Psychiatry》 2025年第2期268-273,共6页
This manuscript critically evaluates the randomized controlled trial(RCT)conducted by Phiri et al,which assessed the effectiveness of virtual reality(VR)training for psychiatric staff in reducing restrictive practices... This manuscript critically evaluates the randomized controlled trial(RCT)conducted by Phiri et al,which assessed the effectiveness of virtual reality(VR)training for psychiatric staff in reducing restrictive practices(RPs).Specifically,this RCT investigated the impact of VR on the handling of aggressive patients by psychiatric staff compared to traditional training methods.Despite significant reductions in perceived discrimination in the VR group,there were no major improvements in self-efficacy or anxiety levels.The system usability scale rated the VR platform highly,but it did not consistently outperform traditional training methods.Indeed,the study shows the potential for VR to reduce RPs,although fluctuations in RP rates suggest that external factors,such as staff turnover,influenced the outcomes.This manuscript evaluates the study’s methodology,results,and broader implications for mental health training.Additionally,it highlights the need for more comprehensive research to establish VR as a standard tool for psychiatric staff education,focusing on patient care outcomes and real-world applicability.Finally,this study explores future research di-rections,technological improvements,and the potential impact of policies that could enhance the integration of VR in clinical training. 展开更多
关键词 Virtual reality Restrictive practices Psychiatric wards De-escalation techniques Staff training Generalized anxiety disorder System usability scale Burnout prevention
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Research on Serious Game Design for Children’s Food and Agriculture Education
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作者 Tingting Xie Na Qi 《Journal of Contemporary Educational Research》 2025年第10期389-397,共9页
This study takes children as the research subjects to explore the rationality of integrating food and agriculture education with serious games,thereby consolidating children’s agricultural knowledge,fostering agricul... This study takes children as the research subjects to explore the rationality of integrating food and agriculture education with serious games,thereby consolidating children’s agricultural knowledge,fostering agricultural skills,and developing healthy eating habits.Based on the game mechanics of serious games,combined with children’s cognitive and behavioral characteristics,this study identifies the core indicators of food and agriculture education,refines them into specific design elements,constructs a serious game design model for children’s food and agriculture education,and conducts usability evaluation through the design of corresponding game interfaces.The contextual and incentive properties of serious game mechanics are crucial factors in enhancing children’s acquisition of food and agriculture knowledge,skills,and healthy eating habits.The game design integrating food and agriculture education with serious games can significantly improve the level of children’s food and agriculture education,and has important guiding value for promoting the design and development of children’s educational games. 展开更多
关键词 Food and agriculture education Serious games for children Interface design Usability study
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Wuhan Tongusable in Huangshi
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作者 Gao Ximing 《Changjiang Weekly》 2022年第17期4-4,共1页
Starting April 27,the Wuhan Tong public transit card can be used in urban Huangshi,Daye,and Yangxin to take buses.The Wuhan Tong card service also covers the following cities within the Wuhan City Cluster:Ezhou,Xiaoga... Starting April 27,the Wuhan Tong public transit card can be used in urban Huangshi,Daye,and Yangxin to take buses.The Wuhan Tong card service also covers the following cities within the Wuhan City Cluster:Ezhou,Xiaogan,Tianmen,Xiantao,Anlu,Yingcheng,and Hanchuan. 展开更多
关键词 WUHAN SERVICE usable
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Virtual reality for preoperative patient education: Impact on satisfaction, usability, and burnout from the perspective of new nurses 被引量:3
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作者 Jiyoung Kim Donghyun Kim +1 位作者 Sang-Ha Oh Hyeokjae Kwon 《World Journal of Clinical Cases》 SCIE 2024年第28期6204-6216,共13页
BACKGROUND Traditional paper-based preoperative patient education is a struggle for new nurses and requires extensive training.In this situation,virtual reality technology can help the new nurses.Despite its potential... BACKGROUND Traditional paper-based preoperative patient education is a struggle for new nurses and requires extensive training.In this situation,virtual reality technology can help the new nurses.Despite its potential benefits,there are studies on patient satisfaction but there is limited information on the usability of virtual reality(VR)technology for new nurses in giving preoperative education to patients.AIM To investigate the impact on satisfaction,usability,and burnout of a system using VR technology in preoperative patient education.METHODS The study involved 20 nurses from the plastic surgery ward and 80 patients admitted between April and May 2019.Each nurse taught four patients:Two using traditional verbal education and two using virtual reality.The System Usability Scale,After-Scenario Questionnaire,and Maslach Burnout Inventory(MBI)were employed to evaluate the impact of these education methods.RESULTS The VR education groups showed a statistically higher satisfaction than the traditional verbal education groups.Among the three subscales of the MBI,emotional exhaustion and personal accomplishment improved statistically significantly.VR was also better in terms of usability.CONCLUSION This study suggests VR enhances usability and reduces burnout in nurses,but further research is needed to assess its impact on depersonalization and objective measures like stress and heart rate. 展开更多
关键词 Virtual reality Preoperative care Patient education BURNOUT USABILITY SATISFACTION Prospective studies
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Enhancing preoperative patient education through virtual reality:A leap forward in nursing practice 被引量:1
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作者 Mainak Roy 《World Journal of Clinical Cases》 SCIE 2024年第34期6744-6747,共4页
Integration of virtual reality(VR)technology into preoperative patient education has shown potential to improve nursing practice.The study by Kim et al examines the impact of VR on nurse satisfaction,usability,and bur... Integration of virtual reality(VR)technology into preoperative patient education has shown potential to improve nursing practice.The study by Kim et al examines the impact of VR on nurse satisfaction,usability,and burnout.A prospective study involving 20 nurses and 80 patients was conducted,comparing traditional paper-based education with VR-based education in the plastic surgery ward at Chungnam National University Hospital.Findings demonstrated that VR significantly enhanced satisfaction and usability among nurses,while also reducing emotional exhaustion,a critical factor in nurse burnout.Consistency in education quality was also improved,ensuring uniform patient care.These results underscore the importance of VR in reducing the stress of repetitive tasks,improving job satisfaction,and potentially enhancing nurse retention.Future research should explore the broader applications of VR in healthcare and address the logistical challenges of integrating this technology into routine clinical practice.The study by Kim et al highlights VR’s transformative potential in preoperative education for both patients and healthcare providers. 展开更多
关键词 Virtual reality Preoperative education Nurse satisfaction USABILITY BURNOUT
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Authenticated Digital Currency Redaction with Stronger Privacy and Usability
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作者 Tang Yongli Li Ying +2 位作者 Zhao Zongqu Li Yuanhong Guo Rui 《China Communications》 SCIE CSCD 2024年第6期219-236,共18页
With the promotion of digital currency,how to effectively solve the authenticity,privacy and usability of digital currency issuance has been a key problem.Redactable signature scheme(RSS)can provide the verification o... With the promotion of digital currency,how to effectively solve the authenticity,privacy and usability of digital currency issuance has been a key problem.Redactable signature scheme(RSS)can provide the verification of the integrity and source of the generated sub-documents and solve the privacy problem in digital currency by removing blocks from the signed documents.Unfortunately,it has not realized the consolidation of signed documents,which can not solve the problem of merging two digital currencies.Now,we introduce the concept of weight based on the threshold secret sharing scheme(TSSS)and present a redactable signature scheme with merge algorithm(RSS-MA)using the quasi-commutative accumulator.Our scheme can reduce the communication overhead by utilizing the merge algorithm when transmitting multiple digital currency signatures.Furthermore,this can effectively hide the scale of users’private monetary assets and the number of transactions between users.While meeting the three properties of digital currency issuance,in order to ensure the availability of digital currency after redacting,editors shall not remove the relevant identification information block form digital currency.Finally,our security proof and the analysis of efficiency show that RSS-MA greatly improves the communication and computation efficiency when transmitting multiple signatures. 展开更多
关键词 authenticity verification digital currency privacy protection RSS-MA TSSS USABILITY
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Enhancing Fire Safety in Commercial Vehicles: Assessing the Efficacy and Advantages of Exploding Fire Extinguishing Balls
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作者 Paul W. Ford 《Journal of Transportation Technologies》 2024年第4期521-548,共28页
Fire incidents in commercial vehicles pose significant risks to passengers, drivers, and cargo. Traditional fire extinguishing systems, while effective, may have limitations in terms of response time, coverage, and hu... Fire incidents in commercial vehicles pose significant risks to passengers, drivers, and cargo. Traditional fire extinguishing systems, while effective, may have limitations in terms of response time, coverage, and human intervention [1]. This study investigates the efficacy of a novel fire suppression technology—the Exploding Fire Extinguishing Ball (EFEB) —as an alternative and complementary fire safety solution for commercial vehicles. The research employs a multidisciplinary approach, encompassing engineering, materials science, fire safety, and human factors analysis. A systematic literature review establishes a comprehensive understanding of existing fire suppression technologies, including EFEBs. Subsequently, this study analyzes the unique features of EFEBs, such as automatic activation, as well as manual activation upon exposure to fire, and their potential to provide rapid, localized, and autonomous fire suppression. The study presents original experimental investigations to assess the performance and effectiveness of EFEBs in various fire scenarios representative of commercial vehicles. Experiments include controlled fires in confined spaces and dynamic simulations to emulate real-world fire incidents. Data on activation times, extinguishing capability, and coverage area are collected and analyzed to compare the efficacy of EFEBs with traditional fire extinguishing methods. Furthermore, this research shows the practical aspects of implementing EFEBs in commercial vehicles. A feasibility study examines the integration challenges, cost-benefit analysis, and potential regulatory implications. The study also addresses the impact of EFEBs on vehicle weight, stability, and overall safety. Human factors and user acceptance are crucial elements in adopting new safety technologies. Therefore, this research utilizes an experimental design to assess the performance and effectiveness of EFEBs in various fire scenarios representative of commercial vehicles. This dissertation presents original controlled experiments to emulate real-world fire incidents, including controlled fires in confined spaces and dynamic simulations. The experimental approach ensures rigorous evaluation and objective insights into EFEBs’ potential as an autonomous fire suppression system for commercial vehicles. This includes the perspectives of drivers, passengers, fleet operators, insurance agencies, and regulatory bodies. Factors influencing trust, perceived safety, and willingness to adopt EFEBs are analyzed to provide insights into the successful integration of this technology. The findings of this research will contribute to the knowledge of fire safety technology and expand the understanding of the applicability of EFEBs in commercial vehicles. 展开更多
关键词 Exploding Fire Extinguishing Balls Commercial Vehicles Fire Suppression Fire Safety Technology Human Factors Usability Feasibility Study
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Evaluating Methods of Visual Assistance for Workers to Improve Quality and Usability in Individualized Kitchen Cabinet Assembly
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作者 Albert Eff Michael S. J. Walter 《Journal of Computer and Communications》 2024年第2期156-172,共17页
In times of digitalisation, visual assistance systems in assembly are increasingly important. The design of these assembly systems needs to be highly complex to meet the requirements. Due to the increasing number of v... In times of digitalisation, visual assistance systems in assembly are increasingly important. The design of these assembly systems needs to be highly complex to meet the requirements. Due to the increasing number of variants in production processes, as well as shorter innovation and product life cycles, assistance systems should improve quality and reduce complexity of assembly processes. However, many large kitchen manufacturers still assemble kitchen cabinets manually, due to the high variety of components, such as rails and fittings. This paper focuses on the analysis and evaluation of virtual assistance systems to improve quality and usability in individualised kitchen cabinet assembly processes at a large German manufacturer. A solution is identified and detailed. 展开更多
关键词 Digitalisation Assembly Process Visual Assistance USABILITY Human-Centred Assembly Design
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DAVSS:Development of Mobile Application for Documenting and Assessing Domestic Violence
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作者 Faiqah Hafidzah Halim Nor Aimuni Md Rashid Noor Azhana Abdul Majid 《Journal of Artificial Intelligence and Technology》 2024年第4期279-287,共9页
This paper presents the development and evaluation of the Domestic Abuse and Violence Support System(DAVSS),a mobile application designed to address domestic violence issues in Malaysia.DAVSS integrates the essential ... This paper presents the development and evaluation of the Domestic Abuse and Violence Support System(DAVSS),a mobile application designed to address domestic violence issues in Malaysia.DAVSS integrates the essential 27-DASH(Danger Assessment for Separation and Harassment)questionnaire to assess the severity of domestic violence situations.The project follows the phased approach of the Waterfall Model,encompassing requirements,analysis,design,development,and testing stages.Usability testing was conducted to evaluate the DAVSS application,revealing overall user satisfaction.However,this assessment relied primarily on frequency analysis,prompting consideration for enhanced reliability through alternative measurement methods such as median and standard deviation approaches.The DAVSS application’s Danger Assessment Test(DAT)algorithm,built upon the 27-DASH questions,represents a significant aspect of the system.Future work includes the validation of this rule-based algorithm using expert evaluation,potentially through Delphi techniques.Given the absence of dedicated domestic abuse mobile applications in Malaysia,DAVSS promises several advantages.It empowers victims to report incidents,locate shelters for protection,and facilitates shelter access through QR code integration.In conclusion,as domestic violence remains a pressing concern requiring increased support,the DAVSS mobile application emerges as a vital system that offers assistance to victims while breaking down barriers that may silence their voices. 展开更多
关键词 DASH domestic abuse domestic violence mobile application usability testing
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A Study on UI Design Analysis From the Perspective of Cognitive Psychology for Improving Usability of Airline Service Apps
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作者 Xuan Fu Euitai Jung 《Psychology Research》 2024年第12期345-358,共14页
The rapid advancement of the Fourth Industrial Revolution and the widespread adoption of contactless environments have transformed the aviation industry,with mobile applications emerging as pivotal tools for enhancing... The rapid advancement of the Fourth Industrial Revolution and the widespread adoption of contactless environments have transformed the aviation industry,with mobile applications emerging as pivotal tools for enhancing user experience.Despite their increasing prevalence,usability challenges persist due to inadequacies in human-centered interface design.This study addresses these issues by analyzing key interface elements-layout,navigation,color,and buttons—of airline service apps through the lens of cognitive psychology.Drawing on principles such as the Gestalt principle of continuity,Hick's Law,the Aesthetic-Usability Effect,and the Von Restorff Effect,the research identifies existing usability challenges and proposes targeted design improvements to enhance user interaction and satisfaction.Through a detailed case study of the UMETRIP app,the study integrates cognitive psychology concepts to offer actionable recommendations for improving layout clarity,simplifying navigation,ensuring color consistency,and enhancing button recognition.This approach fosters a more intuitive,user-centered interaction between humans and airline service apps,ultimately contributing to the optimization of digital experiences.However,further empirical validation is necessary to refine the proposed solutions.It is anticipated that these findings will inform the future development of user-centered interface designs in the airline industry and beyond. 展开更多
关键词 Cognitive Psychology Mobile Application Design Airline Service Apps User Interface Usability Optimizatio
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Two-dimensional physical habitat modeling of effects of habitat structures on urban stream restoration 被引量:12
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作者 Dongkyun IM Hyeongsik KANG 《Water Science and Engineering》 EI CAS 2011年第4期386-395,共10页
River corridors, even if highly modified or degraded, still provide important habitats for numerous biological species, and carry high aesthetic and economic values. One of the keys to urban stream restoration is reco... River corridors, even if highly modified or degraded, still provide important habitats for numerous biological species, and carry high aesthetic and economic values. One of the keys to urban stream restoration is recovery and maintenance of ecological flows sufficient to sustain aquatic ecosystems. In this study, the Hongje Stream in the Seoul metropolitan area of Korea was selected for evaluating a physically-based habitat with and without habitat structures. The potential value of the aquatic habitat was evaluated by a weighted usable area (WUA) using River2D, a two-dimensional hydraulic model. The habitat suitability for Zacco platypus in the Hongje Stream was simulated with and without habitat structures. The computed WUA values for the boulder, spur dike, and riffle increased by about 2%, 7%, and 131%, respectively, after their construction. Also, the three habitat structures, especially the riffle, can contribute to increasing hydraulic heterogeneity and enhancing habitat diversity. 展开更多
关键词 stream restoration physical habitat River2D weighted usable area
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反盗链技术研究 被引量:8
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作者 郑绍辉 周明天 《计算机时代》 2008年第1期58-59,共2页
最近几年互联网上流氓软件盛行,盗链现象日益猖獗,已经危及到许多网站的正常运行。文章提出了几种反盗链解决方案,同时讨论了如何处理反盗链技术和网站可用性的关系。
关键词 盗链(hot-linking) 反盗链 搜索引擎优化(SEO) 流氓软件(rascal software) 网站可用性(website usability)
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Agglomerative Approach for Identification and Elimination of Web Robots from Web Server Logs to Extract Knowledge about Actual Visitors 被引量:1
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作者 Dilip Singh Sisodia Shrish Verma Om Prakash Vyas 《Journal of Data Analysis and Information Processing》 2015年第1期1-10,共10页
In this paper we investigate the effectiveness of ensemble-based learners for web robot session identification from web server logs. We also perform multi fold robot session labeling to improve the performance of lear... In this paper we investigate the effectiveness of ensemble-based learners for web robot session identification from web server logs. We also perform multi fold robot session labeling to improve the performance of learner. We conduct a comparative study for various ensemble methods (Bagging, Boosting, and Voting) with simple classifiers in perspective of classification. We also evaluate the effectiveness of these classifiers (both ensemble and simple) on five different data sets of varying session length. Presently the results of web server log analyzers are not very much reliable because the input log files are highly inflated by sessions of automated web traverse software’s, known as web robots. Presence of web robots access traffic entries in web server log repositories imposes a great challenge to extract any actionable and usable knowledge about browsing behavior of actual visitors. So web robots sessions need accurate and fast detection from web server log repositories to extract knowledge about genuine visitors and to produce correct results of log analyzers. 展开更多
关键词 WEB Robots WEB Server Log REPOSITORIES Ensemble Learning Bagging Boosting and Voting Actionable KNOWLEDGE usable KNOWLEDGE Browsing Behavior GENUINE VISITORS
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三江平原区域水资源分析(五) 被引量:2
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作者 郭大本 魏永霞 王清 《黑龙江大学工程学报》 1998年第1期10-14,共5页
This paper presents the systematic Summation of the investigation and the re-examination results,and the overall analysis of the quntity, quality, distribution, principle and way of development of water resource in Sa... This paper presents the systematic Summation of the investigation and the re-examination results,and the overall analysis of the quntity, quality, distribution, principle and way of development of water resource in Sanjiang plain. 展开更多
关键词 REGIONAL WATER resouree usable quantity ADVANTAGE EVALUATION
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Criterion of aerodynamic performance of large-scale offshore horizontal axis wind turbines
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作者 程兆雪 李仁年 +1 位作者 杨从新 胡文瑞 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2010年第1期13-20,共8页
With the background of offshore wind energy projects, this paper studies aerodynamic performance and geometric characteristics of large capacity wind turbine rotors (1 to 10 MW), and the main characteristic paramete... With the background of offshore wind energy projects, this paper studies aerodynamic performance and geometric characteristics of large capacity wind turbine rotors (1 to 10 MW), and the main characteristic parameters such as the rated wind speed, blade tip speed, and rotor solidity. We show that the essential criterion of a high- performance wind turbine is a highest possible annual usable energy pattern factor and a smallest possible dimension, capturing the maximum wind energy and producing the maximum annual power. The influence of the above-mentioned three parameters on the pattern factor and rotor geometry of wind turbine operated in China's offshore meteoro- logical environment is investigated. The variation patterns of aerodynamic and geometric parameters are obtained, analyzed, and compared with each other. The present method for aerodynamic analysis and its results can form a basis for evaluating aerodynamic performance of large-scale offshore wind turbine rotors. 展开更多
关键词 offshore wind energy project horizontal axis wind turbine rotor aerody-namic design annual usable energy pattern factor power coefficient wind turbine rotor wind turbine blade
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