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A Traceable Capability-based Access Control for IoT

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Computers, Materials & Continua 2022年第9期72卷 4967-4982页

作者： Chao Li Fan Li Cheng Huang Lihua Yin tianjie luo Bin Wang Cyberspace Institute of Advanced Technology Guangzhou UniversityGuangzhou510700China PCL Research Center of Cyberspace Security Peng Cheng LaboratoryShenzhen518052China Department of Electrical and Computer Engineering University of WaterlooWaterlooN2L 3G1Canada College of Electrical Engineering Zhejiang UniversityHangzhou310058China

Delegation mechanism in Internet of Things(IoT)allows users to share some of their permissions with ***-based delegation solutions require that only the user who has registered in the cloud can be delegated *** is not convenient when a permission is delegated to a large number of temporarily ***,some works like CapBAC delegate permissions locally in an offline ***,this is difficult to revoke and modify the offline delegated *** this work,we propose a traceable capability-based access control approach(TCAC)that can revoke and modify permissions by tracking the trajectories of permissions *** define a time capability tree(TCT)that can automatically extract permissions trajectories,and we also design a new capability token to improve the permission verification,revocation and modification *** experiment results show that TCAC has less token verification and revocation/modification time than those of CapBAC and *** can discover 73.3%unvisited users in the case of delegating and accessing *** provides more information about the permissions delegation relationships,and opens up new possibilities to guarantee the global security in IoT delegation *** the best of our knowledge,TCAC is the first work to capture the unvisited permissions.

关键词： IoT access control permission delegation delegation trajectory capability revocation capability modification

A Material Identification Approach Based on Wi-Fi Signal

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Computers, Materials & Continua 2021年第12期69卷 3383-3397页

作者： Chao Li Fan Li Wei Du Lihua Yin Bin Wang Chonghua Wang tianjie luo Cyberspace Institute of Advanced Technology Guangzhou UniversityGuangzhou510700China PCL Research Center of Cyberspace Security Peng Cheng LaboratoryShenzhen518052China Department of Computer Science and Computer Engineering University of ArkansasFayetteville72701USA College of Electrical Engineering Zhejiang UniversityHangzhou310058China China Industrial Control Systems Cyber Emergency Response Team Beijing100040China

Material identification is a technology that can help to identify the type of target *** approaches depend on expensive instruments,complicated pre-treatments and professional *** is difficult to find a substantial yet effective material identification method to meet the daily use *** this paper,we introduce a Wi-Fi-signal based material identification approach by measuring the amplitude ratio and phase difference as the key features in the material classifier,which can significantly reduce the cost and guarantee a high level *** practical measurement of WiFi based material identification,these two features are commonly interrupted by the software/hardware noise of the channel state information(CSI).To eliminate the inherent noise of CSI,we design a denoising method based on the antenna array of the commercial off-the-shelf(COTS)Wi-Fi *** that,the amplitude ratios and phase differences can be more stably utilized to classify the *** implement our system and evaluate its ability to identify materials in indoor *** result shows that our system can identify 10 commonly seen liquids with an average accuracy of 98.8%.It can also identify similar liquids with an overall accuracy higher than 95%,such as various concentrations of salt water.

关键词： Internet of Things Wi-Fi signal channel state information material identification noise elimination

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吐烟花的组织培养

中国农学通报 2011年第16期27卷 99-103页

作者：王雪兵罗天杰于旭东罗灿吴繁花海南大学园艺园林学院海南儋州571737 海南大学农学院海南儋州571737 海南大学热带作物种质资源保护与开发利用教育部重点实验室海南儋州571737

以吐烟花茎段为试验材料,研究其表面消毒方法和不同激素配比的培养基对吐烟花愈伤组织诱导、丛生芽扩繁以及幼苗生根的影响。研究结果表明,外植体表面消毒以70%酒精消毒15s,无菌水漂洗1次,0.1%升汞浸泡6min,无菌水漂洗1次后,再用0.1%升... 详细信息

以吐烟花茎段为试验材料,研究其表面消毒方法和不同激素配比的培养基对吐烟花愈伤组织诱导、丛生芽扩繁以及幼苗生根的影响。研究结果表明,外植体表面消毒以70%酒精消毒15s,无菌水漂洗1次,0.1%升汞浸泡6min,无菌水漂洗1次后,再用0.1%升汞浸泡6min,无菌水漂洗4次的效果最佳;同时筛选出吐烟花植株再生的较好激素浓度配比的培养基:MS+3.5mg/L6-BA+0.1mg/LNAA适合愈伤组织诱导,MS+2.0mg/L6-BA+0.1mg/LNAA对丛生芽诱导与扩繁效果较好,MS+0.3mg/LNAA有利于生根,移栽成活率达91%,且植株生长良好。

关键词：吐烟花组织培养诱导培养扩繁培养

针刀配合清热除湿化瘀汤治疗慢性盆腔炎疗效观察

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广西中医药 2023年第6期46卷 23-25页

作者：罗添杰谢建荣林娜龙岩人民医院福建龙岩364000

目的:观察针刀配合清热除湿化瘀汤治疗慢性盆腔炎效果。方法:纳入湿热瘀结型慢性盆腔炎患者60例,随机分为两组。对照组30例给予常规治疗。观察组30例在常规治疗基础上,实施针刀配合清热除湿化瘀汤治疗。治疗4周后比较两组中医证候积分... 详细信息

目的:观察针刀配合清热除湿化瘀汤治疗慢性盆腔炎效果。方法:纳入湿热瘀结型慢性盆腔炎患者60例,随机分为两组。对照组30例给予常规治疗。观察组30例在常规治疗基础上,实施针刀配合清热除湿化瘀汤治疗。治疗4周后比较两组中医证候积分及临床疗效。结果:观察组总有效率为96.67%,对照组为76.67%,差异有显著意义(P<0.05);治疗后两组中医证候积分均下降,且观察组低于对照组(P<0.05)。结论:加用针刀配合清热除湿化瘀汤治疗慢性盆腔炎能显著改善症状,提高疗效。

关键词：慢性盆腔炎针刀清热除湿化瘀汤中西医结合疗法

黄芪桂枝五物汤熏洗治疗桡骨远端骨折的效果评价

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中国卫生标准管理 2024年第11期15卷 131-134页

作者：温弘成罗添杰陈巧玲福建省龙岩人民医院骨伤科福建龙岩364000

目的探讨黄芪桂枝五物汤为代表的温和法中药熏洗治疗桡骨远端骨折的效果评价。方法选取福建省龙岩人民医院2020年4月—2023年4月收治的桡骨远端骨折患者120例,按照不同康复干预方法分为对照组与观察组,各60例。对照组给予常规治疗及康... 详细信息

目的探讨黄芪桂枝五物汤为代表的温和法中药熏洗治疗桡骨远端骨折的效果评价。方法选取福建省龙岩人民医院2020年4月—2023年4月收治的桡骨远端骨折患者120例,按照不同康复干预方法分为对照组与观察组,各60例。对照组给予常规治疗及康复干预,观察组在对照组基础上加用以黄芪桂枝五物汤为代表的温和法中药熏洗,对比2组中医证候积分、临床相关指标、腕关节功能评分及日常生活能力评分。结果观察组康复治疗后的肢体困难、神情、肿胀、疼痛以及烦恼易怒评分分别为(1.08±0.33)分、(0.98±0.33)分、(1.03±0.30)分、(0.91±0.22)分、(1.12±0.33)分,观察组疼痛缓解时间、肿胀消失时间、住院时间、骨折愈合时间分别为(2.11±0.64)d、(1.87±0.41)d、(5.80±1.21)d、(2.75±0.90)月,观察组康复治疗后腕关节功能评分、日常生活能力评分分别为(85.85±5.30)分、(86.45±6.31)分,观察组康复治疗后与对照组康复治疗后相比各中医证评分较低,各临床症状消失时间均较短,腕关节功能评分及日常生活能力评分也升高,差异有统计学意义(P<0.05)。结论在常规治疗及康复干预基础上加用中药熏洗治疗能够有效改善桡骨远端骨折的临床症状及体征,提高患者的腕功能以及日常生活能力,预后表现更好。

关键词：黄芪桂枝五物汤温和法中药熏洗桡骨远端骨折腕功能日常生活能力预后

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广州燃气集团数智化生产运营体系的实践探索

中国建设信息化 2023年第19期 55-62页

作者：罗天杰赖文福何焱辉喻大明广州燃气集团有限公司

中国城镇燃气行业历经多年的发展,燃气安全已成为城市安全生命线的重要组成部分。广州燃气集团通过建设数智化生产运营体系,积极探索与数字化、智能化要素深度融合的城镇燃气行业生产运营解决方案,实现高效协同的数字化管理、动态全面... 详细信息

中国城镇燃气行业历经多年的发展,燃气安全已成为城市安全生命线的重要组成部分。广州燃气集团通过建设数智化生产运营体系,积极探索与数字化、智能化要素深度融合的城镇燃气行业生产运营解决方案,实现高效协同的数字化管理、动态全面的可视化展现、科学准确的智能化决策,从而提高运营管控智能化和精细化水平,用数智赋能提升广州“新城建”和“智慧燃气”建设水平。

关键词：新城建智慧燃气 BIM 人工智能

古溪针刀联合“木龙四神煎”加减治疗膝关节骨性关节炎的临床研究

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中国医学创新 2024年第26期21卷 53-57页

作者：罗添杰谢建荣赖华祯曹小妍龙岩人民医院骨伤科福建龙岩364000

目的:探究古溪针刀联合“木龙四神煎”加减治疗膝关节骨性关节炎(knee osteoarthritis,KOA)的临床效果。方法:按照随机数字表法将2023年7月1日—2024年3月1日在龙岩人民医院接受治疗的80例KOA患者分为对照组(n=40,西药常规治疗)与观察组... 详细信息

目的:探究古溪针刀联合“木龙四神煎”加减治疗膝关节骨性关节炎(knee osteoarthritis,KOA)的临床效果。方法:按照随机数字表法将2023年7月1日—2024年3月1日在龙岩人民医院接受治疗的80例KOA患者分为对照组(n=40,西药常规治疗)与观察组(n=40,古溪针刀联合“木龙四神煎”加减治疗)。观察两组膝关节功能、疼痛程度及临床疗效,并记录不良反应发生情况。结果:治疗前,两组膝关节功能评分比较,差异均无统计学意义(P>0.05);治疗后,与对照组比,观察组膝关节功能评分均高,差异均有统计学意义(P0.05)。结论:KOA患者采用古溪针刀联合“木龙四神煎”加减治疗可有效改善膝关节功能,缓解关节疼痛症状,疗效确切,且治疗安全性较高。

关键词：古溪针刀木龙四神煎膝关节骨性关节炎膝关节功能

The discovery of surface runoff in the megadunes of Badain Jaran Desert,China,and its significance

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Science China Earth Sciences 2017年第4期60卷 707-719页

作者： ZHAO JingBo MA YanDong luo XiaoQing YUE DaPeng SHAO tianjie DONG ZhiBao College of Tourism and Environmental Science Shaanxi Normal University State Key Laboratory of Loess and Quaternary Geology Environmental Institute of EarthChinese Academy of Sciences

The Badain Jaran Desert exhibits the greatest difference in altitude of all of the world's *** the slopes of megadunes in the desert,there are physical and chemical deposits produced by surface *** addition,we have observed rarely-seen infiltration-excess surface runoff in the megadune depressions as well as spring streams at the base of *** used electron microscopy,energy spectrum analysis,infiltration experiments,moisture content determinations and grain-size analysis to study the mineral and chemical composition of the runoff precipitates,and grain-size of the deposits associated with the runoff,together with the hydrological balance in the megadune area,and the atmospheric precipitation mechanism responsible for groundwater recharge and for supplying water to *** observations of shallow runoff and infiltration-excess surface runoff indicate the occurrence of strong and effective precipitation in summer,which would provide an important source for groundwater *** lines of evidence,such as the physical and chemical deposits resulting from shallow subsurface runoff,spring streams,infiltration-excess runoff,and gravity capillary water with a moisture content of 3-6%,demonstrate that precipitation reaches the base of the megadunes through infiltration and subsequently becomes *** chemical deposits,such as newly-formed calcite and gypsum,and gray-black physical deposits,as well as different stages in the development of fan-shaped landforms resulting from shallow subsurface runoff,indicate that groundwater recharge in the area is the result of long-term precipitation,rather than intermittent individual major rainfall *** sand layers with a low infiltration capacity lead to subsurface runoff emerging at the ground *** factors play an important role in maintaining a positive water balance and in replenishing groundwater via rainfall:effective rainfall as a water source,the high infiltration capacity of

关键词： Bedmap-2 Seafloor topography Iceberg grounding Antarctica

四黄散外敷辅助改良夹板外固定治疗小儿桡骨远端骨折的效果观察

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中国药物滥用防治杂志 2023年第12期29卷 2236-2239页

作者：温弘成王玉祥谢建荣陈巧玲罗添杰龙岩人民医院骨伤科福建龙岩364000

目的:探讨改良夹板外固定联合四黄散治疗小儿桡骨远端骨折的应用效果。方法:选取2022年7月—2023年10月于福建省龙岩市龙岩人民医院骨伤科门诊及住院诊治的60例桡骨远端骨折患儿为研究对象,采用随机数字表法分为对照组(n=30)和联合组(n=... 详细信息

目的:探讨改良夹板外固定联合四黄散治疗小儿桡骨远端骨折的应用效果。方法:选取2022年7月—2023年10月于福建省龙岩市龙岩人民医院骨伤科门诊及住院诊治的60例桡骨远端骨折患儿为研究对象,采用随机数字表法分为对照组(n=30)和联合组(n=30)。对照组采用改良夹板外固定治疗,联合组采用改良夹板外固定联合四黄散外敷治疗。比较两组患肢疼痛评分、腕部肿胀程度、腕关节功能优良率及不良事件发生率。结果:两组治疗后1d、7d的VAS评分均低于治疗前,且联合组低于对照组,差异有统计学意义(P<0.05);两组治疗后1周、2周患肢周径差均低于治疗前,且联合组低于对照组,差异有统计学意义(P<0.05);治疗结束后1个月,联合组优良率为96.67%,高于对照组的73.33%,差异有统计学意义(P<0.05);两组患者均未出现水泡、手麻木及压疮等不良事件。结论:改良夹板外固定联合四黄散外敷在小儿桡骨远端骨折中的应用效果良好,有效降低了夹板固定期间患肢腕部组织肿胀、疼痛,促进骨折愈合及功能恢复,治疗安全有效。

关键词：小儿桡骨远端骨折改良夹板外固定四黄散肿胀疼痛