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高校思政教育数字化发展的困境与解决途径探讨

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大学（思政教研） 2024年第9期 7-10页

作者：李卓航华东师范大学上海200062

以大数据、云计算、物联网和人工智能为代表的数字化技术在新时代迅猛发展,对经济、科技等领域产生了深远影响,也在教育领域催生了全面数字化转型的趋势。在高校思政教育中引入数字化技术可以更好地适应多样化的培养目标,以培养学生的... 详细信息

以大数据、云计算、物联网和人工智能为代表的数字化技术在新时代迅猛发展,对经济、科技等领域产生了深远影响,也在教育领域催生了全面数字化转型的趋势。在高校思政教育中引入数字化技术可以更好地适应多样化的培养目标,以培养学生的创新能力、综合素养和社会责任感。然而,思政教育数字化发展过程中也面临一些困境,如数字化教学资源应用不足、思政课教师信息技术教学能力不足、数字化保障机制有待完善等。解决这些问题需要充分运用数字技术、提升教师素养、建立健全的保障机制,以推动高校思政教育数字化高效发展。

关键词：教师素养思政教育数字化发展数字赋能

Adaptive leader-following attitude consensus of multiple rigid body systems with resilience to communication link faults

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Science China(Information Sciences) 2023年第10期66卷 319-320页

作者： Housheng SU zhuohang li Key Laboratory of Imaging Processing and Intelligence Control School of Artifcial Intelligence and Automation Huazhong University of Science and Technology

Distributed coordination in multi-agent systems has been widely utilized in attitude alignment of spacecraft and cooperative control of unmanned vehicles, which has attracted extensive attention from biology, physics, and engineering researchers [1]. With the growing complexity of tasks, an increase in space missions and engineering projects needs to be completed by the cooperative operation of multi-spacecraft or multi-robot systems.

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山地城镇洪涝滑坡灾害韧性评估研究

防灾减灾工程学报 2024年第4期44卷 751-761页

作者：文海家钱龙李卓航黄俊豪重庆大学土木工程学院重庆400045 山地城镇建设新技术教育部重点实验室(重庆大学) 重庆400045

为实现对山地城镇灾害韧性的有效评估,以受洪灾-滑坡灾害链影响的中国典型山地城镇重庆市主城都市区为研究区,基于城市灾害韧性的内涵特征和作用机理,结合“压力-状态-响应”模型的因果逻辑,在多源数据收集分析的基础上,构建承载洪涝、... 详细信息

为实现对山地城镇灾害韧性的有效评估,以受洪灾-滑坡灾害链影响的中国典型山地城镇重庆市主城都市区为研究区,基于城市灾害韧性的内涵特征和作用机理,结合“压力-状态-响应”模型的因果逻辑,在多源数据收集分析的基础上,构建承载洪涝、滑坡灾害韧性评估指标体系。采用机器学习方法评估滑坡压力韧性,采用主客观组合权重分析及VIKOR法评估洪涝压力韧性和状态-响应韧性,采用秩和比综合评价法构建综合韧性评估模型,度量城市灾害韧性水平,划分韧性等级,分析评估结果。结果表明:(1)研究区西部与西北部滑坡压力韧性高,中部滑坡压力韧性处于中等水平,南部与东北部滑坡压力韧性低;(2)研究区中部洪涝压力韧性水平较低,而研究区东部和西部洪涝压力韧性普遍较高,整体呈现外圈高内圈低的态势,其中位于研究区东南部的南川区是洪涝压力韧性最高的区;(3)重庆市核心城区的渝中区是状态-响应韧性最高的区,整体的状态-响应韧性空间分布呈现出一种明显的中心至外围递减趋势;(4)综合韧性的空间分布没有明显的特征,但研究区普遍存在一个行政区会出现多种不同韧性等级的情况,体现了各阶段韧性发展的不平衡。

关键词：城市韧性洪涝灾害滑坡灾害 “压力-状态-响应”模型

斜跨位经皮肾镜手术的临床探索及上尿路结石微创治疗的整体策略 (“大家泌尿网”观看手术视频)

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现代泌尿外科杂志 2024年第6期29卷 477-480,491页

作者：许可慰李卓航吴至楷中山大学孙逸仙纪念医院泌尿外科广东广州510000

经皮肾镜碎石取石术(PCNL)是治疗复杂性肾结石的一线手段,可在多种体位下被实施。斜跨位是一种灵活便利、安全有效的体位,可在该单一体位下联合经皮肾镜与逆行入路手术,因此适用于治疗复杂性肾结石。本文回顾了斜跨位PCNL的诞生、特点... 详细信息

经皮肾镜碎石取石术(PCNL)是治疗复杂性肾结石的一线手段,可在多种体位下被实施。斜跨位是一种灵活便利、安全有效的体位,可在该单一体位下联合经皮肾镜与逆行入路手术,因此适用于治疗复杂性肾结石。本文回顾了斜跨位PCNL的诞生、特点与优势,及其在复杂性肾结石治疗上的应用,并以此为基础,进一步提出了上尿路结石整体微创治疗策略。

关键词：经皮肾镜碎石取石术斜跨位上尿路结石复杂性肾结石

智能控压控温软镜系统联合超脉冲光纤铥激光在上尿路结石治疗中的应用

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中华泌尿外科杂志 2024年第7期45卷 527-531页

作者：吴至楷刘成杨江华李卓航赖聪于浩许可慰中山大学孙逸仙纪念医院泌尿外科广州510120

目的评价智能控压控温软镜系统联合超脉冲光纤激光用于上尿路结石治疗的有效性和安全性。方法回顾性分析2024年2一4月于中山大学孙逸仙纪念医院行智能控压控温软镜系统联合超脉冲光纤激光碎石术的13例上尿路结石患者的临床资料。男7例,... 详细信息

目的评价智能控压控温软镜系统联合超脉冲光纤激光用于上尿路结石治疗的有效性和安全性。方法回顾性分析2024年2一4月于中山大学孙逸仙纪念医院行智能控压控温软镜系统联合超脉冲光纤激光碎石术的13例上尿路结石患者的临床资料。男7例,女6例;年龄(46±10)岁;结石累积直径(25.8±13.3)mm;肾下盏结石7例(53.8%),合并输尿管结石3例(23.1%)。术前尿培养阳性者4例(30.8%),尿常规白细胞>100个/μl者6例(46.2%)。对术前合并感染的患者根据药敏试验结果选用敏感抗菌药物治疗。智能控压控温软镜系统联合超脉冲光纤激光碎石术中参数设置:激光功率设置为45W(1.5J×30Hz,0.3J×150Hz),肾盂内压力阈值设置为30 mmHg(1mmHg=0.133kPa),温度阈值为43℃。术后留置双J管2~4周。结果13例均顺利完成手术,手术中位时间30(25,90)min。13例术中平均肾盂内压力范围为8~24mmHg,平均肾孟内温度25~34℃。1例患者术后出现发热(38℃),2例因术后疼痛需镇痛治疗,无其他术中、术后并发症。术后住院时间为(1.5±0.8)d。术后1个月评估结石清除率为84.6%(11/13)。结论智能控压控温软镜系统联合超脉冲光纤激光可有效控制肾盂内压及温度,结石清除率高,并发症发生率较低,是治疗上尿路结石安全、有效的方法。

关键词：尿路结石输尿管软镜肾盂内压力肾盂内温度光纤铥激光

Field measurement of the impact of natural ventilation and portable air cleaners on indoor air quality in three occupant states

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Energy and Built Environment 2023年第5期4卷 601-613页

作者： Haiguo Yin zhuohang li Xinping Zhai Yuxuan Ning Le Gao Haihang Cui Zhenjun Ma Angui li School of Building Services Science and Engineering Xi’an University of Architecture and TechnologyXi’anShaanxi 710055China The Key Lab of Plateau Building and Eco-community in Qinghai XiningQinghai 810008China Qinghai Building and Materials Research Co. LtdXiningQinghai 810008China Qingdao Municipal Engineering Design Research Institute QingdaoShandong 266000China Sustainable Buildings Research Centre University of WollongongNSW 2522Australia

Natural ventilation(NV)has been considered a simple and effective method of ***,the intro-duction of NV does not achieve better indoor air quality(IAQ)when the outdoor atmospheric environment is ***,portable air cleaners(PACs)are increasing in use in recent years,but their effectiveness is highly dependent on the residents’habits.A typical residence in Xi’an,China was selected to examine the effects of the use of NV alone and the use of NV and PACs together on IAQ in the three occupant states,i.e.,unoc-cupied,sleeping and ***,such as temperature,relative humidity,CO_(2),and PM_(2.5)concentration were measured when changing the window opening and the position of the *** results showed that in the unoccupied state,opening the inner door can promote a more uniform thermal and humid *** the sleeping state,the I/O ratio of the PM_(2.5)concentration was the lowest when the window opening of the bedroom was 1/2 or 3/4,with a mean value of *** the leisure state,only using NV,when the purification rate reaches 90%,the mean purification time of each window opening in the living room is 87.5 *** mean purification time was reduced to 25 min when both NV and PAC were *** on-site purification efficiencies were 91.0%and 94.5%,when the window opening was 1/2(i.e.,the PAC was placed in the center of the room)and 3/4(i.e.,the PAC was placed away from the outer window),respectively.

关键词： Residential buildings Indoor air quality Field measurement Natural ventilation Portable air cleaner Occupant states

Gas film/regenerative composite cooling characteristics of the liquid oxygen/liquid methane (LOX/LCH4) rocket engine

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第8期25卷 631-649页

作者： Xinlin liU Jun SUN zhuohang JIANG Qinglian li Peng CHENG Jie SONG Science and Technology on Scramjet Laboratory College of Aerospace Science and EngineeringNational University of Defense TechnologyChangsha 410073China

The thermal protection of rocket engines is a crucial aspect of rocket engine *** this paper,the gas film/regenerative composite cooling of the liquid oxygen/liquid methane(LOX/LCH4)rocket engine thrust chamber was investigated.A gas film/regenerative composite cooling model was developed based on the Grisson gas film cooling efficiency formula and the one-dimensional regenerative cooling *** accuracy of the model was validated through experiments conducted on a 6 kg/s level gas film/regenerative composite cooling thrust ***,key parameters related to heat transfer performance were *** results demonstrate that the model is sufficiently accurate to be used as a preliminary design *** temperature rise error of the coolant,when compared with the experimental results,was found to be less than 10%.Although the pressure drop error is relatively large,the calculated results still provide valuable guidance for heat transfer *** addition,the performance of composite cooling is observed to be superior to regenerative *** the gas film flow rate results in higher cooling efficiency and a lower gas-side wall ***,the position at which the gas film is introduced greatly impacts the cooling *** optimal introduction position for the gas film is determined when the film is introduced from a single row of *** optimal introduction position results in a more uniform wall temperature distribution and reduces the peak ***,it is observed that a double row of holes,when compared to a single row of holes,enhances the cooling effect in the superposition area of the gas film and further lowers the gas-side wall *** results provide a basis for the design of gas film/regenerative composite cooling systems.

关键词： liquid oxygen/liquid methane(LOX/LCH4)rocket engine Gas film cooling Regenerative cooling Heat transfer characteristics

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一种改进的CLTree算法

电信科学 2016年第8期32卷 124-127页

作者：李卓航浙江大学信息与电子工程学院浙江杭州310058

针对聚类算法CLTree精度低、算法效率低的问题,提出了CLTree-R算法,之后将其应用于UCI数据集进行聚类分析。基于Spark平台的特性对数据进行并行处理,加快了算法运行效率。实验结果也表明,使用该算法对官方数据集进行聚类分析时,可以得... 详细信息

针对聚类算法CLTree精度低、算法效率低的问题,提出了CLTree-R算法,之后将其应用于UCI数据集进行聚类分析。基于Spark平台的特性对数据进行并行处理,加快了算法运行效率。实验结果也表明,使用该算法对官方数据集进行聚类分析时,可以得到较为合理的顾客划分。

关键词：聚类 Spark 数据挖掘并行化

DPAL-BERT:A Faster and lighter Question Answering Model

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 771-786页

作者： lirong Yin Lei Wang zhuohang Cai Siyu Lu Ruiyang Wang Ahmed AlSanad Salman A.AlQahtani Xiaobing Chen Zhengtong Yin Xiaolu li Wenfeng Zheng Department of Geography and Anthropology Louisiana State UniversityBaton RougeLA 70803USA School of Automation University of Electronic Science and Technology of ChinaChengdu610054China College of Computer and Information Sciences King Saud UniversityRiyadh11574Saudi Arabia School of Electrical and Computer Engineering Louisiana State UniversityBaton RougeLA 70803USA College of Resources and Environmental Engineering Guizhou UniversityGuiyang550025China School of Geographical Sciences Southwest UniversityChongqing400715China

Recent advancements in natural language processing have given rise to numerous pre-training language models in question-answering ***,with the constant evolution of algorithms,data,and computing power,the increasing size and complexity of these models have led to increased training costs and reduced *** study aims to minimize the inference time of such models while maintaining computational *** also proposes a novel Distillation model for PAL-BERT(DPAL-BERT),specifically,employs knowledge distillation,using the PAL-BERT model as the teacher model to train two student models:DPAL-BERT-Bi and *** research enhances the dataset through techniques such as masking,replacement,and n-gram sampling to optimize knowledge *** experimental results showed that the distilled models greatly outperform models trained from *** addition,although the distilled models exhibit a slight decrease in performance compared to PAL-BERT,they significantly reduce inference time to just 0.25%of the *** demonstrates the effectiveness of the proposed approach in balancing model performance and efficiency.

关键词： DPAL-BERT question answering systems knowledge distillation model compression BERT Bi-directional long short-term memory(BiLSTM) knowledge information transfer PAL-BERT training efficiency natural language processing