检索结果-南通市图书馆

Interface Design and Functional Optimization of Chinese Learning Apps Based on User Experience

在线全文

学校读者我要写书评

暂无评论

教育技术与创新 2024年第2期6卷 59-78页

作者： qihui Hong Jialing hu Nianxiu Fang School of International Education Wenzhou UniversityChina

This research paper investigates the interface design and functional optimization of Chinese learning apps through the lens of user experience.With the increasing popularity of Chinese language learning apps in the era of rapid mobile internet development,users'demands for enhanced interface design and interaction experience have grown significantly.The study aims to explore the influence of user feedback on the design and functionality of Chinese learning apps,proposing optimization strategies to improve user experience and learning outcomes.By conducting a comprehensive literature review,utilizing methods such as surveys and user interviews for data collection,and analyzing user feedback,this research identifies existing issues in the interface design and interaction experience of Chinese learning apps.The results present user opinions,feedback analysis,identified problems,improvement directions,and specific optimization strategies.The study discusses the potential impact of these optimization strategies on enhancing user experience and learning outcomes,compares findings with previous research,addresses limitations,and suggests future research directions.In conclusion,this research contributes to enriching the design theory of Chinese learning apps,offering practical optimization recommendations for developers,and supporting the continuous advancement of Chinese language learning apps.

关键词： Chinese Learning Apps User Experience Interface Design Functional Optimization

Growth and aggregation micromorphology of natural gas hydrate particles near gas-liquid interface under stirring condition

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2021年第12期34卷 65-77页

作者： qihui hu Xiaoyu Wang Wuchang Wang Yuxing Li Shuai Liu Shandong Key Laboratory of Oil-Gas Storage and Transportation Safety College of Pipeline and Civil EngineeringChina University of PetroleumQingdao 266580China State Key Laboratory of Natural Gas Hydrates Beijing 100028China Research Institute of Experiment and Detection Petro China Xinjiang Oilfield CompanyKaramay 834000China

To investigate the morphological evolution of the whole growth and aggregation processes of hydrate crystals near the gas–liquid interface,we used a high-pressure visual reactor with high-speed camera to capture the micromorphology of hydrate particles in a natural gas+pure water system with pressure from 2.6 to 3.6 MPa and sub-cooling from 4.7 to 6.23C.The results showed that under low sub-cooling conditions,the amount and size of particles increased first and then decreased in the range of 0–330 lm,and the small particles always dominated.These particles can be roughly classified into two categories:planar flake particles and polyhedral solid particles.Then,the concept of maximum growth dominant particle size was proposed to distinguish the morphological boundary of growth and aggregation.In addition,the micro model was established to better reflect the effects of particle formation process and evolution mechanism near the gas–liquid interface under stirring condition.The results of this study can provide a guidance for flow assurance in multiphase pipeline.

关键词： Natural gas hydrate Growth Aggregation Gas-liquid interface Micromorphology Physical model

An experimental study on the choked flow characteristics of CO_(2) pipelines in various phases

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2021年第4期34卷 17-26页

作者： Yuxing Li Shuaiwei Gu Datong Zhang qihui hu Lin Teng Cailin Wang Shandong Provincial Key Laboratory of Oil&Gas Storage and Transportation Security China University of Petroleum(East China)Qingdao 266555China Department of Energy and Power Engineering Tsinghua UniversityBeijing 100084China

High pressure pipeline transportation has been an established technology for economically transporting large amounts of CO_(2).However,there are still issues and associated risks that have to be effectively addressed and adequately understood.It is well known that a strong JouleThomson Cooling effect can occur when pressurized CO_(2) flows through a choke valve.Thus,to investigate the choking characteristics especially the temperature drop of high pressure CO_(2),a new laboratory scale experimental setup(total length of 14.85 m and the inner diameter of 15 mm)was constructed.Steady choked flow and transient choked flow tests were carried out respectively for pressurized CO_(2) in various initial phases.The phase transitions and temperature drop characteristics were then studied following the choked flow and the results show that the phase transitions in steady choked flow differs significantly from that in transient choked flow.For transient choked flow of various initial phases,all the flows downstream would transfer from single phase to gas-liquid twophase flow.Furthermore,the effect of water on transient choked flow of supercritical CO_(2) pipeline was investigated,and the phenomena of solid particles deposition was captured which was paramount importance of ensuring the safety operation of CO_(2)pipelines when throttling by the choke valves.

关键词： CO^(2)pipeline Steady choked flow Transient choked flow Water Temperature drop

在线全文

学校读者我要写书评

暂无评论

海水江崖纹在服装中的创新运用研究

西部皮革 2024年第1期46卷 99-101页

作者：胡其慧杨楠青岛恒星科技学院

海水江崖纹是中国传统纹样之一，是明清时期统治者或官员服装边缘处的辅助纹样。文章基于将海水江崖纹运用在服装设计中，通过查阅文献、分类汇总和对比等方法，分析了海水江崖纹的起源与发展及其在清朝顶峰时期不同阶段的山石、水纹、... 详细信息

海水江崖纹是中国传统纹样之一，是明清时期统治者或官员服装边缘处的辅助纹样。文章基于将海水江崖纹运用在服装设计中，通过查阅文献、分类汇总和对比等方法，分析了海水江崖纹的起源与发展及其在清朝顶峰时期不同阶段的山石、水纹、色彩的特征，阐述了海水江崖纹具有独特的外观、精致的艺术效果以及深厚的文化内涵，以期为当代的时装设计提供借鉴与参考。

关键词：中国风创新纹样服装设计

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

金融素养对大学生创业意愿的影响

科技创业月刊 2024年第2期37卷 41-45页

作者：陈雪胡剑冰朱启慧深圳大学管理学院广东深圳518060

基于三元交互理论与班杜拉社会学习理论,探讨金融素养对大学生创业意愿的影响,以及角色榜样与高校创业环境的调节作用。通过问卷量表搜集创业意愿,以及基本金融知识检测衡量金融素养,以此数据构建分层广义线性模型。研究结果显示:金融... 详细信息

基于三元交互理论与班杜拉社会学习理论,探讨金融素养对大学生创业意愿的影响,以及角色榜样与高校创业环境的调节作用。通过问卷量表搜集创业意愿,以及基本金融知识检测衡量金融素养,以此数据构建分层广义线性模型。研究结果显示:金融素养对于大学生创业意愿具有显著正向影响;高校创业环境起正向调节作用;角色榜样的调节作用不显著。从财务与金融视角探索了金融素养与角色榜样以及高校教育环境的交互作用,拓展了对高校大学生创业意愿的研究。

关键词：金融素养大学生创业意愿高校创业环境角色榜样分层广义线性模型

机器人辅助手术系统和腹腔镜手术切除胆总管囊肿疗效的Meta分析

在线全文

学校读者我要写书评

暂无评论

中华消化外科杂志 2024年第2期23卷 289-296页

作者：郭恬汇胡启辉陈聪陶锐何津彤王继兴黄真豪重庆医科大学附属璧山医院全科医学重庆402760 重庆医科大学附属璧山医院肝胆外科重庆402760

胆总管囊肿是一种非常罕见的先天性胆管异常。早期进行囊肿切除术和肝空肠Roux‑en‑Y吻合术是外科治疗该病的首选方式。随着快速康复外科的发展,腹腔镜手术有效减少了胆道并发症及创口感染发生率等,但其仍未满足人们对手术微创的要求。... 详细信息

胆总管囊肿是一种非常罕见的先天性胆管异常。早期进行囊肿切除术和肝空肠Roux‑en‑Y吻合术是外科治疗该病的首选方式。随着快速康复外科的发展,腹腔镜手术有效减少了胆道并发症及创口感染发生率等,但其仍未满足人们对手术微创的要求。机器人手术系统因其清晰的手术视野及灵活的机械臂可以提高手术精准度及外科医师的操作性。笔者查阅国内外相关文献,采用Meta分析评价机器人手术系统与腹腔镜手术治疗胆总管囊肿的疗效。

关键词：胆总管囊肿腹腔镜检查机器人手术系统疗效 Meta分析

含杂质超临界CO_(2)输送管道停输再启动瞬态特性研究

在线全文

学校读者我要写书评

暂无评论

中国安全生产科学技术 2024年第5期20卷 43-49页

作者：苗青殷布泽王鑫聂超飞李玉星李其抚胡其会国家石油天然气管网集团有限公司科学技术研究总院分公司河北廊坊065000 中国石油大学(华东)储运与建筑工程学院山东青岛266500 中国石油技术开发有限公司北京100020

为研究超临界CO_(2)管道停输后管内温度压力和相态变化规律,以国内某CO_(2)管道为研究对象,利用OLGA软件开展停输再启动瞬态数值模拟,探究不同工况及工质对管道停输再启动过程的影响。研究结果表明:在保证相态不变且下游用户流量不变的... 详细信息

为研究超临界CO_(2)管道停输后管内温度压力和相态变化规律,以国内某CO_(2)管道为研究对象,利用OLGA软件开展停输再启动瞬态数值模拟,探究不同工况及工质对管道停输再启动过程的影响。研究结果表明:在保证相态不变且下游用户流量不变的情况下,流量越大,最大停输时间越短,且管道中前部和管道高点较其他位置先出现相变;在相同工况下,H_(2)和N_(2)等非极性杂质的存在会使CO_(2)的相包线向上移动,最大停输时间减少;而H_(2)S和CO等极性杂质的存在会使CO_(2)的相包线向下移动,最大停输时间增加;停输再启动过程中,如果所含杂质的密度小于纯CO_(2)的密度,则含有该类型杂质的管道恢复稳定运行状态所需时间短于纯CO_(2)工质管道。研究结果可为相关单位制定CO_(2)管道设计方案和安全停输预案提供参考。

关键词： OLGA 含杂质CO_(2) 停输再启动安全停输时间

Sensitively detecting antigen of SARS-CoV-2 by NIR-Ⅱ fluorescent nanoparticles

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第8期15卷 7313-7319页

作者： Ruibin hu Tao Liao Yan Ren Wenming Liu Rui Ma Xinyuan Wang qihui Lin Guoxin Wang Yongye Liang Department of Materials Science and Engineering Southern University of Science and Technology of ChinaShenzhen 518055China WWHS Biotech.Inc. Shenzhen 518122China Joint Laboratory for Infectious Disease Prevention and Control Hygienic Section of Longhua Center for Disease Control and PreventionLonghua DistrictShenzhen 518109China

Early detection of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection is an efficient way to prevent the spread of coronavirus disease 2019(COVID-19).Detecting SARS-CoV-2 antigen can be rapid and convenient,but it is still challenging to develop highly sensitive methods for effective diagnosis.Herein,a lateral flow assay(LFA)based on fluorescent nanoparticles emitting in the second near-infrared(NIR-II)window is developed for sensitive detection of SARS-CoV-2 antigen.Benefiting from the NIR-II fluorescence with high penetration and low autofluorescence,such NIR-II based LFA allows enhanced signal-to-background ratio,and the limit of detection is down to 0.01 ng·mL^(−1)of SARS-CoV-2 antigen.In the clinical swab sample tests,the NIR-II LFA outperforms the colloidal gold LFA with higher overall percent agreement with the polymerase chain reaction test.The clinical samples with low antigen concentrations(~0.015–~0.068 ng·mL^(−1))can be successfully detected by the NIR-II LFA,but fail for the colloidal gold LFA.The NIR-II LFA can provide a promising platform for highly sensitive,rapid,and cost-effective method for early diagnosis and mass screening of SARS-CoV-2 infection.

关键词： coronavirus disease 2019(COVID-19) severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) antigen detection the second near-infrared(NIR-II)fluorophores lateral flow assay

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

连续沉降过程中管土相互作用规律

油气储运 2024年第3期43卷 332-341页

作者：刘鹏张宇李玉星范佳林王武昌胡其会黄维和中国石油大学(华东)储运与建筑工程学院·山东省油气储运安全重点实验室山东省青岛市266580 中国石油海洋工程有限公司中国石油天然气股份有限公司

【目的】沉降是埋地管道周边常见的地质灾害,严重时可导致管道失效及破坏。研究连续沉降过程中的管土相互作用规律对于保障沉降灾害下埋地管道的安全具有重要意义。【方法】利用自主设计的连续沉降实验系统开展埋地钢管连续沉降实验,探... 详细信息

【目的】沉降是埋地管道周边常见的地质灾害,严重时可导致管道失效及破坏。研究连续沉降过程中的管土相互作用规律对于保障沉降灾害下埋地管道的安全具有重要意义。【方法】利用自主设计的连续沉降实验系统开展埋地钢管连续沉降实验,探究不同地层土体沉降范围和沉降量下的管土相互作用规律,采用数值模拟方法详细分析了连续沉降过程中的管土相互作用演化过程,并通过非线性多元拟合方法,充分考虑沉降、管道、土体等各项参数,对数值模拟结果进行多元拟合。【结果】随着地层土体沉降量的增加,钢管与周围土体逐渐由协同沉降向非协同沉降演变,管道的力学响应经历了增加、卸载、波动、稳定4个阶段。随着地层土体沉降范围增大,管道与其下方土体完全分离所需的地层沉降量增大。当沉降速度较小时,管道最大应力与沉降量随沉降速度的增加而显著增加;沉降速度超过2×10^(-5) m/s后,管道最大应力与沉降量基本保持不变,但相应的地层沉降量明显增加。此外,拟合得到连续沉降条件下埋地钢管最大Von Mises应力预测模型,其计算误差多在10%以内。【结论】不同沉降阶段下的管道力学响应明显不同,并且沉降过程中的地层土体沉降量、沉降范围、沉降速度变化对于管道的力学响应也具有重要影响。此外,研究得到的连续沉降下埋地钢管最大Von Mises应力预测模型具有较好的预测效果,能够为连续沉降灾害下的埋地管道安全提供重要判定依据。(图19,表4,参24)

关键词：埋地钢管连续沉降力学分析实验研究数值模拟