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Analysing free way diverging risks using high-resolution trajectory data based on conflict prediction models

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Transportation Safety and environment 2024年第1期6卷 8-21页

作者： Ye li Sani Dalhatu Chen yuan School of Traffic and Transportation engineering Central South UniversityChangshaHunan 410075P.R.China Department of Computer Science City University of Hong KongKowloonHong Kong 999077P.R.China.

This study aims to develop a reliable safety evaluation model for diverging vehicles and investigates the impact of the surrounding traffic environment on freeway diverging ***-resolution trajectory data from three sites in the Netherlands(Delft,Ter-Heide and Zonzeel)were employed for the risk *** regression(LR),support vector machine(SVM),random forest(RF),extreme randomize trees(eT),adaptive boosting(Adaboost),extreme gradient boosting(XGboost)and multilayer perceptron(MLP),were developed for safety *** result showed that MLP outperforms the other models for diverging risk prediction over all the indicators,conflict thresholds and *** matrix,shapely addictive explanation(SHAP),and LR algorithms were further adopted to interpret the influence of the surrounding *** indicates that an increase in traffic density,subject vehicle(SV)lateral speed,the distance of SV from ramp nose and SV length would increase the diverging *** the same time,an increase in leading vehicle speed and space headway would decrease diverging ***,spatial analysis was also conducted to explore the stability of identified traffic features regarding the impact on the diverging risk across the sites.

关键词： diverging risk,machine learning shapely addictive explanation(SHAP) linear regression(LR) extended time-to-collision(TeT) time-integrated time-to-collision(TIT)

Topology design and graph embedding for decentralized federated learning

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Intelligent and Converged Networks 2024年第2期5卷 100-115页

作者： yubin Duan Xiuqi li Jie Wu Department of Computer and Information Sciences Temple UniversityPhiladelphiaPA 19122USA

Federated learning has been widely employed in many applications to protect the data privacy of participating *** the dataset is decentralized among training devices in federated learning,the model parameters are usually stored in a centralized *** federated learning is easy to implement;however,a centralized scheme causes a communication bottleneck at the central server,which may significantly slow down the training *** improve training efficiency,we investigate the decentralized federated learning *** decentralized scheme has become feasible with the rapid development of device-to-device communication techniques under ***,the convergence rate of learning models in the decentralized scheme depends on the network topology *** propose optimizing the topology design to improve training efficiency for decentralized federated learning,which is a non-trivial problem,especially when considering data *** this paper,we first demonstrate the advantage of hypercube topology and present a hypercube graph construction method to reduce data heterogeneity by carefully selecting neighbors of each training device—a process that resembles classic graph *** addition,we propose a heuristic method for generating torus ***,we have explored the communication patterns in hypercube topology and propose a sequential synchronization scheme to reduce communication cost during training.A batch synchronization scheme is presented to fine-tune the communication pattern for hypercube *** on real-world datasets show that our proposed graph construction methods can accelerate the training process,and our sequential synchronization scheme can significantly reduce the overall communication traffic during training.

关键词： data heterogeneity decentralized federated learning graph embedding network topology

Straw interlayer improves sunflower root growth: evidence from moisture and salt migration and the microbial community in saline-alkali soil

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Journal of Integrative Agriculture 2024年第11期23卷 3870-3881页

作者： Mengmeng Chen Guoli Wang yupeng Jing Jie Zhou Jiashen Song Fangdi Chang Ru yu Jing Wang Weini Wang Xia Sun Hongyuan Zhang yuyi li State Key Laboratory of efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences College of Agriculture Nanjing Agricultural University Ordos Agriculture and Animal Husbandry ecology and Resource Protection Center

A straw interlayer added to soil can effectively reduce soil salinity effects on plant growth, however, the effects of soil moisture, salt and microbial community composition on plant growth under a straw interlayer are unclear. A rhizobox study was conducted to investigate the role of straw interlayer thickness on soil moisture, salt migration, microbial community composition, as well as root growth in sunflower. The study included four treatments: Control(no straw interlayer); S3(straw interlayer of 3.0 cm); S5(straw interlayer of 5.0 cm); S7(straw interlayer of 7.0 cm). Straw interlayer treatments increased soil moisture by 8.2–11.0% after irrigation and decreased soil salt content after the bud stage in 0–40 cm soil. Total root length, total root surface area, average root diameter, total root volume and the number of root tips of sunflower plants were higher under straw interlayer treatments than in the control, and were the highest under the S5 treatment. This stimulated root growth was ascribed to the higher abundance of Chloroflexi and Verrucomicrobia bacteria in soil with a straw interlayer, which was increased by 55.7 and 54.7%, respectively,in the S5 treatment. Addition of a straw interlayer of 5 cm thickness is a practical and environmentally feasible approach for improving sunflower root growth in saline-alkali soil.

关键词： saline-alkali soil rhizobox soil water soil salt content bacterial community

electroacupuncture targeting the immune system to alleviate sepsis

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Acupuncture and Herbal Medicine 2024年第1期4卷 56-67页

作者： Mengyue Fang yuye Lan Man li Chennan li Bin Xu Yan Ma Sulukkana Noiprasert Xianghong Jing lingling yu Tongji Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina School of Basic Medicine Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Key Laboratory of Integrated Acupuncture and Medicine Research of Ministry of education Nanjing University of Chinese MedicineNanjingChina Wuhan No.1 Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina School of Integrative Medicine Mae Fah Luang UniversityChiangraiThailand Institute of Acupuncture and Moxibustion China Academy of Chinese Medical SciencesBeijingChina Institute of Integrated Traditional Chinese and Western Medicine Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

Sepsis is a life-threatening inflammatory syndrome with high morbidity and mortality ***,options for sepsis are still limited to general treatment in intensive care units(ICUs),and effective therapies that improve sepsis survival are *** disturbances play a vital role in the pathology of sepsis and are associated with protracted inflammation,susceptibility to infections,and ***,many investigators have focused on the potential benefits of immunomodulation therapy for ***(eA)has been practiced in clinics for many years and has shown advantages in treating infectious *** the last few decades,our understanding of the efficacy and mechanisms of eA in sepsis has undergone considerable *** searched the literature regarding“CNKI,Wan Fang Data,VIP Database,PubMed,and Ingenta Connect”from 2010 to 2023,using the keywords“sepsis”“septic”and“electroacupuncture”and 336 sources were ***,we included 82 studies that targeted the immune system to determine eA’s anti-inflammatory and immunomodulatory effects on *** this review,we found that eA has clinical benefits in relieving septic inflammation,improving immune function,and attenuating related multi-organ injury through several mechanisms,such as activation of the cholinergic anti-inflammatory pathway(CAP),vagaladrenal axis,inhibition of the nuclear factor Kappa-B(NF-κB)signaling pathway,signal transducers and activators of transcription(STAT)signaling pathway,and improvement of immune cell ***,eA may be a promising complementary therapy for sepsis *** also expect these data will contribute to further studies on eA in sepsis.

关键词： Cholinergic anti-inflammatory pathway electroacupuncture Nuclear factor Kappa-B Sepsis Signal transducers and activators of transcription Vagal-adrenal axis

Prediction of hepatic artery occlusion after liver transplantation by ultrasound characteristics and clinical risk factors

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World Journal of Radiology 2024年第6期16卷 196-202页

作者： yu-Ting Lai Yi Chen Tai-Shi Fang Zhi-Yan li Ning-Bo Zhao Department of Ultrasound National Clinical Research Centre for Infectious DiseasesThe Third People’s Hospital of ShenzhenThe Second Hospital Affiliated with the Southern University of Science and TechnologyShenzhen 518112Guangdong ProvinceChina Department of liver Surgery National Clinical Research Centre for Infectious DiseasesThe Third People’s Hospital of ShenzhenThe Second Hospital Affiliated with the Southern University of Science and TechnologyShenzhen 518112Guangdong ProvinceChina

BACKGROUND Hepatic artery occlusion(HAO)after liver transplantation(LT)is a devastating complication,resulting in early graft loss and reduced overall ***-sound is an established assessment method for HAO in patients following LT,especially those with complex hepatic artery *** We retrospectively analyzed the ultrasound characteristics and the clinic risk factors associated with HAO in 400 adult LT patients who were enrolled and treated at the Third People's Hospital of Shenzhen between November 2016 and July *** patients diagnosed with acute HAO(A-HAO)by surgery and fifteen diagnosed with chronic HAO(C-HAO)were included.A control group of 33 patients without HAO complications during the same period were randomly selected using a random number *** patients underwent an ultrasono-graphy *** including resistance index(RI),peak systolic velocity(PSV),and portal vein velocity(PVV)were compared across the ***,basic clinical data were collected for all patients,including gender,age,primary diagnosis,D-dimer concentration,total operation time,cold ischemia time,hot ischemia time,intraoperative blood loss and transfusion,intraoperative urine volume,infusion,model for end-stage liver disease(MeLD)score,and whether complex hepatic artery reconstructions were ***,risk factors influencing HAO formation after LT were *** Compared to the non-HAO group,PVV and RI were higher in the A-HAO group,while PSV was ***,both PSV and RI were lower in the C-HAO group compared to the non-HAO *** proportion of patients undergoing complex hepatic artery reconstructions and the gamma-glutamyltransferase(GGT)level before occlusion were significantly higher in the A-HAO group compared to the non-HAO ***,there were no distinct differences between the two groups in D-dimer,MeLD score,pre-occlusion alanine transaminase and aspartate transaminase levels,or intrao

关键词： Hepatic artery occlusion Ultrasonography Diagnostic performance Risk factors liver transplantation

In situ photocatalytically enhanced thermogalvanic cells for electricity and hydrogen production

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Chinese Journal of Structural Chemistry 2024年第1期43卷 1-2页

作者： Tianhao li Wenguang Tu Zhigang Zou School of Science and engineering The Chinese University of Hong KongShenzhenGuangdong518172PR China

Converting low-grade thermal energy into electricity through ther-mogalvanic cells offers a promising approach to addressing environ-mental challenges[1].However,thermogalvanic cells face obstacles,due to limited thermopower,connected to differences in solvent-dependent entropy(ΔS)among redox anions and varying concentration ratios(ΔC)between hot and cold sides[2,3].A typical strategy to enhance the thermopower involves the improvement ofΔS of the redox ***-fortunately,ΔC tends to approach zero spontaneously due to the ther-modynamic instability and redox ion ***,the challenge is to maintain significantΔC for both redox ions and unravel the intricate modulation mechanisms[4].

关键词： redox maintain entropy

中国成为世界重要教育中心:何以必要、何以可能与何以可为

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新疆师范大学学报（哲学社会科学版） 2024年第1期45卷 127-138页

作者：周洪宇李宇阳华中师范大学教育学院湖北武汉430079 国家教育治理研究院湖北武汉430079

纵观文艺复兴以来的世界历史,世界教育中心的形成与转移皆有迹可循——意大利、英国、法国、德国、美国先后成为世界教育中心。成为世界重要教育中心,既是我国教育发展的宏伟目标与重要归宿,又是以中国式教育现代化助推中华民族伟大复... 详细信息

纵观文艺复兴以来的世界历史,世界教育中心的形成与转移皆有迹可循——意大利、英国、法国、德国、美国先后成为世界教育中心。成为世界重要教育中心,既是我国教育发展的宏伟目标与重要归宿,又是以中国式教育现代化助推中华民族伟大复兴的需要,更是世界各国人民利益所系。回首历史、立足现在、展望未来,中国教育凤凰涅槃势不可挡。当前,全球创新格局发生明显变化,呈现由欧美地区向亚太地区、由大西洋区域向太平洋区域转移的趋势。我们要抓住历史机遇,在借鉴世界教育中心成功经验的基础上,结合中国本土教育实践,不断提升中国教育的支撑力、贡献力、国际影响力和全球引领力,使中国早日成为世界重要教育中心。

关键词：世界教育中心教育强国中国式教育现代化中国式现代化

Isolation and experimental Study on Bacteriostasis of Bacillus haynesii

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Journal of Clinical and Nursing Research 2024年第7期8卷 219-227页

作者： Jiedan liao Mengbo yu Jiaming li Zhiheng Xie Wanjun Gu Shuzhen Zhou Yi Ma College of Animal Science and Technology Foshan UniversityFoshan 528225Guangdong ProvinceChina Foshan City Nanhai eastern Along Pharmaceutical Co. LtdFoshan 528234Guangdong ProvinceChina Department of Veterinary Medicine College of Coastal Agricultural SciencesGuangdong Ocean UniversityZhanjiang 524088Guangdong ProvinceChina

This experiment aims to isolate and inhibit three bacteria strains to provide candidate strains for the development and application of *** bacterial morphological identification,16S rDNA sequence alignment,and genetic evolution analysis,three strains were identified as Bacillus haynesii,named HP01,HD02,and *** biosurfactant activity tests,C-TAB tests,hemolysis tests,and antibacterial activity analyses,the results showed that all three strains of *** exhibited significant biosurfactant ***,the solutions of the three strains demonstrated a pronounced antibacterial effect on Staphylococcus *** resistance and safety of commonly used drugs were evaluated using the tablet diffusion method and a mouse feeding *** results indicated that the three strains were not resistant to commonly used antibacterial drugs,and the oral bacterial solution was not pathogenic and had high safety in *** study concluded that all three *** strains met the basic conditions for use,with *** HP01 being the most promising candidate.

关键词： Bacillus haynesii Separation identification Antibacterial activity Safety

基于结构化多孔表面定常吸气的圆柱绕流场控制

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工程力学 2024年第6期41卷 30-43页

作者：高东来余海洋陈文礼李惠哈尔滨工业大学土木工程智能防灾减灾工业与信息化部重点实验室黑龙江哈尔滨150090 哈尔滨工业大学智慧基础设施研究中心黑龙江哈尔滨150090 哈尔滨工业大学结构工程灾变与控制教育部重点实验室黑龙江哈尔滨150090

通过风洞试验研究了在雷诺数为10000时圆柱尾流主动流动控制效果,流动控制通过基于结构化多孔表面定常吸气实现,试验工况具有不同的等效吸气系数C_μ。尾流的二维流场测量通过粒子图像测速(PIV)实现,在瞬时流场结果的基础上进行本征正... 详细信息

通过风洞试验研究了在雷诺数为10000时圆柱尾流主动流动控制效果,流动控制通过基于结构化多孔表面定常吸气实现,试验工况具有不同的等效吸气系数C_μ。尾流的二维流场测量通过粒子图像测速(PIV)实现,在瞬时流场结果的基础上进行本征正交分解(POD)得到模态特性、瞬时涡量演变、脉动速度功率谱、时间平均流动特性和阻力系数估计等的分析与对比,评估流动控制效果。试验结果表明:施加流动控制后的流场POD模态能量分布发生变化,旋涡的顺流向能量输运过程得到增强,当C_μ足够大时,旋涡脱落模式发生改变。剪切层沿顺流向延长,上下剪切层之间趋于平行,涡量值得到削弱。脉动速度的主频被削弱,湍流的波动和动量交换效应得到抑制;阻力系数估计值可降至无控圆柱的约11%。

关键词：圆柱绕流流动控制风洞试验粒子图像测速多孔表面