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计算机基础课程虚拟教学组织的构建与实施

武汉轻工大学学报 2024年第4期43卷 108-113页

作者：刘光蓉周红汪靖王月慧刘亚南武汉轻工大学数学与计算机学院武汉430023 武汉轻工大学机械工程学院武汉430023 武汉轻工大学硒科学与工程现代产业学院武汉430023 武汉轻工大学马克思主义学院武汉430023

面对“四新”时代计算机基础课程教育改革对教师带来的挑战,以计算机基础课程为例探索了基于虚拟教研室的基层教学组织创新,实现“以学生为中心”的教育理念和校内校外“协同育人”的目标。与校内非计算机专业的专职教师合作,形成校内... 详细信息

面对“四新”时代计算机基础课程教育改革对教师带来的挑战,以计算机基础课程为例探索了基于虚拟教研室的基层教学组织创新,实现“以学生为中心”的教育理念和校内校外“协同育人”的目标。与校内非计算机专业的专职教师合作,形成校内虚拟教研室组织,打破学科壁垒,落实立德树人;利用高校虚拟教研室平台,与校外同行计算机基础课教师和平台的教师社区形成校外虚拟教研室组织,进行跨校园、跨区域的线上线下交流与合作,实现教学资源和信息的共享共建,推进线上线下教学模式改革,实施多元化教学评价。基于虚拟教研室的创新探索有效促进了基层教研组织教师在计算机基础课程中专业化教学能力的提高和教学效果的增强。

关键词：虚拟教研室计算机基础课程基层教研组织协同育人

Recent progress in electrospun nanofibers and their applications in heavy metal wastewater treatment

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Frontiers of Chemical Science and Engineering 2023年第3期17卷 249-275页

作者： Xizi Xu He Lv Mingxin Zhang Menglong Wang Yangjian Zhou yanan liu Deng-Guang Yu School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China Shanghai Engineering Technology Research Center for High-Performance Medical Device Materials Shanghai 200093China

Novel adsorbents with a simple preparation process and large capacity for removing highly toxic and nondegradable heavy metals from water have drawn the attention of *** nanofiber membranes usually have the advantages of large specific surface areas and high porosity and allowing flexible control and easy *** membranes show remarkable application potential in the field of heavy metal wastewater *** this paper,the electrospinning technologies,process types,and the structures and types of nanofibers that can be prepared are reviewed,and the relationships among process,structure and properties are *** one hand,based on the different components of electrospun nanofibers,the use of organic,inorganic and organic−inorganic nanofiber membrane adsorbents in heavy metal wastewater treatment are introduced,and their advantages and future development are summarized and *** the other hand,based on the microstructure and overall structure of the nanofiber membrane,the recent progresses of electrospun functional membranes for heavy metal removal are reviewed,and the advantages of different structures for applications are ***,this study lays the foundation for future research aiming to provide more novel structured adsorbents.

关键词： electrospinning heavy metal adsorption nanostructure wastewater

Splicing of Receptor-Like Kinase-Encoding SNC4 and CERK1 is Regulated by Two Conserved Splicing Factors that Are Required for Plant Immunity

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Molecular Plant 2014年第12期7卷 1766-1775页

作者： Zhibin Zhang yanan liu Pingtao Ding Yan Li Qing Kong Yuelin Zhang Department of Botany University of British Columbia Vancouver Canada V6T 1Z4 National Institute of Biological Sciences Zhongguancun Life Science Park Beijing People's Republic of China 102206

Plant immune receptors belonging to the receptor-like kinase （RLK） family play important roles in the recog- nition of microbial pathogens and activation of downstream defense responses. The Arabidopsis mutant snc4-1D con- tains a gain-of-function mutation in the RLK SNC4 （SUPPRESSOR OF NPRI-1, CONSTITUTIVE4）, which leads to constitutive activation of defense responses. Analysis of suppressor mutants of snc4-1D identified two conserved splicing factors, SUA （SUPPRESSOR OF ABI3-5） and RSN2 （REQUIRED FOR SNC4-1D 2）, that are required for the constitutive defense responses in snc4-1D. In sua and rsn2 mutants, SNC4 splicing is altered and the amount of 5NC4 transcripts is reduced. Further analysis showed that SUA and RSN2 are also required for the proper splicing of CERK1 （CHITIN ELICITOR RECEPTOR KINASE1）, which encodes another RLK that functions as a receptor for chitin. In sua and rsn2 mutants, induction of reactive oxygen species by chitin is reduced and the non-pathogenic bacteria Pseudomonas syringae pv. tomato DC3OOOhrcC grows to higher titers than in wild-type plants. Our study suggests that pre-mRNA splicing plays important roles in the regulation of plant immunity mediated by the RLKs SNC4 and CERK1.

关键词： plant immunity receptor-like kinase alternative splicing SUA RSN2 SNC4 CERK1.

PUF-Based Key Distribution in Wireless Sensor Networks

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Computers, Materials & Continua 2020年第8期64卷 1261-1280页

作者： Zheng Zhang yanan liu Qinyuan Zuo Lein Harn Shuo Qiu Yuan Cheng Jinling Institute of Technology Nanjing211169China Department of Computer Science Electrical Engineering University of MissouriKansas64110USA

Physical Unclonable Functions(PUFs)can be seen as kind of hardware one-way functions,who are easily fabricated but difficult to clone,duplicate or ***,PUFs with unclonable and unpredictable properties are welcome to be applied in designing lightweight cryptography *** this paper,a Basic Key Distribution Scheme(Basic-KDS)based on PUFs is firstly ***,by employing different deployment modes,a Random Deployment Key Distribution Scheme(RD-KDS)and a Grouping Deployment Key Distribution Scheme(GD-KDS)are further proposed based on the Basic-KDS for large scale wireless sensor *** our proposals,a sensor is not pre-distributed with any keys but will generate one by the embedded PUF when receiving a challenge from the gateway,which provides perfect resilience against sensor capture ***,the unclonable and unpredictable properties of PUF guarantee the key uniqueness and two-way *** and experiment results show that our proposals have better performances in improving the resilience,secure-connectivity,and efficiency as compared to other schemes.

关键词： Key distribution physical unclonable functions PUF wireless sensor networks deployment mode

Experimental and numerical research on squat silo and large size horizontal warehouse during quasi-steady-state storage

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International Journal of Agricultural and Biological Engineering 2016年第6期9卷 214-222页

作者： Ren Guangyue liu yanan Peng Wei Duan Xu Zhang Ledao College of Food and Bioengineering Henan University of Science&TechnologyLuoyang 471023China

Traditional method to prevent stored grain from deterioration is to control grain temperature.A three dimensional(3-D)numerical model was established to study the temperature variation in outdoor squat silo and large size horizontal warehouse at *** this research,porous media model and solar radiation model were *** and experimental results showed that grain temperature was influenced by temperature of wall,height of grain and the distance between grain and the *** changes dramatically at the top layer of grain heap due to solar radiation and heat convection at air *** of grain close to wall increased with the increasing of ambient *** model established in this research is suitable for predicting grain temperature in outdoor squat silo and large size horizontal warehouse.

关键词： squat silo large size horizontal warehouse porous media model solar radiation model three dimensional numerical model grain temperature quasi-steady-state storage

Towards Public Integrity Audition for Cloud-IoT Data Based on Blockchain

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Computer Systems Science & Engineering 2022年第6期41卷 1129-1142页

作者： Hao Yan yanan liu Shuo Qiu Shengzhou Hu Weijian Zhang Jinyue Xia School of Network Security Jinling Institute of TechnologyNanjing211169China Fujian Provincial Key Laboratory of Network Security and Cryptology Fujian Normal UniversityFuzhou350007China Department of Mathematics and Computer Science Gannan Normal UniversityGanzhou341000China Network Security and Information Office Hohai UniversityNanjing210098China International Business Machines Corporation(IBM) New YorkNYUSA

With the rapidly developing of Internet of Things (IoT), the volume ofdata generated by IoT systems is increasing quickly. To release the pressure ofdata management and storage, more and more enterprises and individuals preferto integrate cloud service with IoT systems, in which the IoT data can be outsourced to cloud server. Since cloud service provider (CSP) is not fully trusted,a variety of methods have been proposed to deal with the problem of data integritychecking. In traditional data integrity audition schemes, the task of data auditing isusually performed by Third Party Auditor (TPA) which is assumed to be ***, in real-life TPA is not trusted as people thought. Therefore, theseschemes suffer from the underlying problem of single-point failure. Moreover,most of the traditional schemes are designed by RSA or bilinear map techniqueswhich consume heavy computation and communication cost. To overcome theseshortcomings, we propose a novel data integrity checking scheme for cloud-IoTdata based on blockchain technique and homomorphic hash. In our scheme, thetags of all data blocks are computed by a homomorphic hash function and storedin blockchain. Moreover, each step within the process of data integrity checking issigned by the performer, and the signatures are stored in blockchain through smartcontracts. As a result, each behavior for data integrity checking in our scheme canbe traced and audited which improves the security of the scheme greatly. Furthermore, batch-audition for multiple data challenges is also supported in our *** formalize the system model of our scheme and give the concrete *** performance analyses demonstrate that our proposed scheme is efficientand practical without the trust-assumption of TPA.

关键词： Blockchain cloud-IoT data integrity checking homomorphic hash function batch audition

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行人安全气囊的专利分析

汽车零部件 2024年第2期 49-51,55页

作者：陶洪敏刘亚楠郑湘南李宇国家知识产权局专利局专利审查协作北京中心北京100160

行人与车辆发生碰撞时,行人安全气囊能够最大限度地降低行人头部、腿部的损伤,是道路交通安全的重要保障。通过对专利文件的检索和分析,介绍了行人安全气囊的专利申请情况、相关技术,探讨了其中的关键创新点和未来发展趋势,为行业的技... 详细信息

行人与车辆发生碰撞时,行人安全气囊能够最大限度地降低行人头部、腿部的损伤,是道路交通安全的重要保障。通过对专利文件的检索和分析,介绍了行人安全气囊的专利申请情况、相关技术,探讨了其中的关键创新点和未来发展趋势,为行业的技术创新提供参考。

关键词：安全气囊专利行人保护碰撞

外周血PTH、CRP表达水平对缺血性脑卒中患者预后的评估价值

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分子诊断与治疗杂志 2024年第7期16卷 1324-1327页

作者：张翠云么蕊陈宏刘雅男秦皇岛市工人医院神经内科河北秦皇岛066200 秦皇岛市工人医院检验科河北秦皇岛066200

目的探究外周血甲状旁腺激素(PTH)、C反应蛋白(CRP)表达水平对缺血性脑卒中患者预后的评估价值。方法以2018年6月至2021年12月秦皇岛市工人医院116例缺血性脑卒中患者为研究对象,根据脑梗死面积将其分为腔隙梗死(49例)、小梗死(44例)... 详细信息

目的探究外周血甲状旁腺激素(PTH)、C反应蛋白(CRP)表达水平对缺血性脑卒中患者预后的评估价值。方法以2018年6月至2021年12月秦皇岛市工人医院116例缺血性脑卒中患者为研究对象,根据脑梗死面积将其分为腔隙梗死(49例)、小梗死(44例)及大梗死(23例),比较不同梗死面积患者外周血PTH、CRP水平,分析其与梗死面积的相关性;根据发病3个月后的改良Rankin量表(mRS)评分将患者分为预后良好组(≤2分)及预后不良组(>2分),分析外周血PTH、CRP水平对患者预后的预测价值及与不良预后发生的关系。结果三组患者PTH、CRP水平比较,大梗死组患者>小梗死组患者>腔隙梗死组患者,差异有统计学意义(P<0.05);外周血PTH、CRP水平与缺血性脑卒中患者梗死面积呈正相关(P<0.05);预后不良组外周血PTH、CRP水平高于预后良好组,差异有统计学意义(P<0.05);外周血PTH、CRP水平联合检测预测患者预后的AUC大于PTH单独检测(P<0.05);PTH≥12.82 ng/L、CRP≥8.16 mg/L提示缺血性脑卒中患者预后不良(P<0.05)。结论缺血性脑卒中患者外周血PTH、CRP水平与梗死面积相关,两者联合检测对患者预后具有评估价值。

关键词：甲状旁腺激素 C反应蛋白缺血性脑卒中

不同品系中华绒螯蟹群体单性化养殖对生长性能及水质的影响

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现代农业科技 2024年第9期 173-177,182页

作者：戴飞刘亚楠庄红根毛辉汪烨江苏诺亚方舟农业科技有限公司江苏常州213147 江苏大胃王网络科技有限公司江苏常州213147

近年来,中华绒螯蟹单性化养殖技术逐渐受到养殖者的青睐,其不同品系单性化养殖技术对环境影响尚不清晰。本研究通过试验比较了中华绒螯蟹早上市新品系、长江蟹这2类群体在雌雄分养和雌雄混养模式下成蟹规格、成活率、增重率、产量等生... 详细信息

近年来,中华绒螯蟹单性化养殖技术逐渐受到养殖者的青睐,其不同品系单性化养殖技术对环境影响尚不清晰。本研究通过试验比较了中华绒螯蟹早上市新品系、长江蟹这2类群体在雌雄分养和雌雄混养模式下成蟹规格、成活率、增重率、产量等生长性能、饵料模式、效益情况和养殖尾水情况。结果表明:长江蟹平均产量明显高于早上市新品系,同一品系内雄蟹组的平均产量均最高,早上市新品系的成活率及增重率普遍低于长江蟹,但在两种品系内不同组别表现不同;以冰鲜鱼为主的饵料模式,不同品系中华绒螯蟹均表现雌蟹组饵料系数最低、饵料转化效率最高,且早上市新品系的雌蟹组优于长江蟹雌蟹组;早上市新品系的平均投入低于长江蟹,且以早上市新品系雌蟹组最低,上市时间早晚的差异导致早上市新品系单价比长江蟹高,平均利润也明显高于长江蟹;中华绒螯蟹不同品系、不同养殖模式下,尾水所有指标均达到DB 32/4043—2021的二级标准,总磷、高锰酸盐指数达到一级标准,两种品系高锰酸盐指数趋势一致,雌蟹组养殖池塘高锰酸盐指数较低。

关键词：中华绒螯蟹品系单性化养殖生长性能水质