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Phylogeny,character evolution,and classification of Selaginellaceae(lycophytes)

Plant Diversity 2023年第6期45卷 630-684页

作者： Xin-mao zhou Li-Bing Zhang School of Ecology and Environmental Science Yunnan UniversityKunming 650504YunnanChina Missouri Botanical Garden 4344 Shaw BlvdSt.LouisMissouri 63110USA Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041SichuanChina

Selaginella is the largest and most taxonomically complex genus in *** fact that over 750 species are currently treated in a single genus makes Selaginellales/Selaginellaceae unique in *** we assembled a dataset of six existing and newly sampled plastid and nuclear loci with a total of 684 accessions(74%increase of the earlier largest sampling)representing ca.300 species to infer a new *** evolution of 10 morphological characters is studied in the new phylogenetic *** major results include:(1)the nuclear and plastid phylogenies are congruent with each other and combined analysis well resolved and strongly supported the relationships of all but two major clades;(2)the Sinensis group is resolved as sister to *** with strong support in two of the three analyses;(3)most morphological characters are highly homoplasious but some characters alone or combinations of characters well define the major clades in the family;and(4)an infrafamilial classification of Selaginellaceae is proposed and the currently defined Selaginella *** split into seven subfamilies(corresponding to the current six subgenera t the Sinensis group)and 19 genera(the major diagnosable clades)with nine new species-poor *** support the conservation of Selaginella with a new type,***,to minimize nomenclatural *** provide a key to subfamilies and genera,images illustrating their morphology,their morphological and geographical synopses,a list of constituent species,and necessary new *** new classification will hopefully facilitate communication,promote further studies,and help conservation.

关键词： Generic classification Homoplasy Lycophyte phylogeny Megaspore types Microspores Nuclear 18S and 26S genes

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Theoretical and experimental study of surface texturing with laser machining

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Advances in Manufacturing 2021年第4期9卷 538-557页

作者： Ya-zhou mao Jian-Xi Yang Jin-Chen Ji School of Mechatronics Engineering Henan University of Science and TechnologyLuoyang 471003HenanPeople’s Republic of China School of Mechanical and Mechatronic Engineering University of Technology SydneySydneyNSW 2007Australia

To explore the forming process and mechanism of the surface texture of laser micropits,this paper presents the thermal model of laser machining based on the Neumann boundary conditions and an investigation on the effects of various parameters on the *** surface profile and quality of the formed micropits were analyzed using NanoFocus 3D equipment through a design of experiment(DOE).The results showed that more intense melting and splashing occurred with higher power density and narrower pulse ***,the compressive stress is an important indicator of the damage effects,and the circumferential thermal stress is the primary factor influencing the diameter *** the process of laser machining,not only did oxides such as CuO and ZnO generate,the energy distribution also tended to decrease gradually from region#1 to region#3 based on an energy dispersive spectrometer(EDS)*** factors significantly affecting the surface quality of the micropit surface texture are the energy and pulse *** relationship between taper angle and energy is appropriately *** on the formation process and mechanism of the surface texture of laser micropits provides important guidance for precision machining.

关键词： Laser machining Thermal stress damage Surface texturing Design of experiment(DOE) Micropit

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Strict Feasibility of Variational Inequalities in Reflexive Banach Spaces

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Acta Mathematica Sinica,English Series 2007年第3期23卷 563-570页

作者： Yi Ran HE Xiu Zhen mao Mi zhou Department of Mathematics Sichuan Normal University Chengdu 610068 P. R. China

Strict feasibility is proved to be an equivalent characterization of （dual） variational inequalities having a nonempty bounded solution set, provided the mappings involved are stably properly quasimonotone. This generalizes an earlier result from finite-dimensional Euclidean spaces to infinitedimensional reflexive Banach spaces. Moreover, the monotonicity-type assumptions are also mildly relaxed.

关键词： variational inequalities well-positioned sets barrier cone strict feasibility stably properly quasimonotone

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In vitro and in vivo antibacterial activity of graphene oxidemodified porous TiO_(2) coatings under 808-nm light irradiation

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Rare Metals 2022年第2期41卷 540-545页

作者： mao-zhou Chai Mei-Wen An Xiang-Yu Zhang Paul-KChu College of Biomedical Engineering Taiyuan University of TechnologyTaiyuan 030024China Laboratory of Biomaterial Surfaces&Interfaces Institute of New Carbon MaterialsTaiyuan University of TechnologyTaiyuan 030024China Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair Department of OrthopedicsSecond Hospital of Shanxi Medical UniversityTaiyuan 030024China Department of Physics Department of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongKowloonHong Kong 999077China

Bio-inertness and post-surgery infection on titanium(Ti)are the main causes of failure of biomedical implants in ***-infrared(NIR)photoactivated antibacterial therapy including photothermal and photodynamic therapies has attracted increasing attention due to the high bactericidal efficiency and little side *** micro-arc oxidation(mao)is an effective method to improve the biological activity of Ti implants,the porous TiO_(2)coatings prepared by mao do not respond to near-infrared(NIR)light to kill bacteria by the photothermal and photodynamic *** this work,graphene oxide(GO)-modified TiO_(2)coatings(TiO_(2)/GO)are prepared on Ti to improve the photothermal and photodynamic ability of the mao *** TiO_(2)/GO coatings exhibit excellent antibacterial activity both in vitro and in vivo against Streptococcus mutans(***)under 808-nm NIR light irradiation due to the synergistic effects rendered by hyperthermia and reactive oxygen species(ROS).The NIR light-responsive antibacterial mao coatings have large potential in combating implant-associated infections in clinical applications.

关键词： Antibacterial activity Graphene oxide(GO) Porous TiO_(2)coating Photo-therapy

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Study on semantic-oriented hybrid indexing strategy of resource metadata in peer-to-peer network

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第1期8卷 88-94页

作者： LIU Zhen zhou mao-wei HUANG Hong-bin LUO Xue-shan College of Information System and Management National University of Defense Technology Changsha 410073 China

Applying ontology to describe resource metadata richly in the peer-to-peer environment has become current research trend. In this semantic peer-to-peer environment, indexing semantic element of resource description to support efficient resource location is a difficult and challenging problem. This paper provided a hybrid indexing architecture, which combines local indexing and global indexing. It uses community strategy and semantic routing strategy to organize key layer metadata element and uses DHT (distributed hash table) to index extensional layer metadata element. Compared with related system, this approach is more efficient in resource location and more scalable.

关键词： Peer-to-peer (P2P) Ontology Metadata Resource indexing

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Air bubble breakup in shear water flows generated by a plug conduit:An experimental investigation

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Journal of Hydrodynamics 2023年第6期35卷 1077-1088页

作者： Han Wu mao-lin zhou Wei-lin Xu Wang-ru Wei Jian-bo Li State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan UniversityChengdu610065China PowerChina Chengdu Engineering Corporation Limited Chengdu610072China

In the context of a sudden contraction plug conduit,the near-wall area experiences a significant shearing effect of water flow,however,the extent to which this shearing effect occurs in bubble-water flow and the related variation mechanisms of air bubble size and number remain *** study employs a model test method to investigate the diffusion process of bubble-water flow in a sudden contraction plug *** size and number of bubbles,as well as their distribution along the shearing section under varying initial air volume conditions,are studied in detail using a high-speed image acquisition *** experimental findings reveal a self-similar relationship between the number and size of bubbles and their cross-sectional distribution over *** bubble number and size vary in three stages,i.e.,quasi-suspension,shearing,and shearing completion *** direction perpendicular to the conduit exhibits peak values in bubble number distribution over the three stages,with peak value location varying with the near-wall *** time progresses,the peak value increases,and a larger initial air volume corresponds to a smaller distance of the peak value location from the *** size of air bubbles near the wall is consistent with the minimum diameter of air bubbles in shear flow and is hardly affected by the initial air *** results aid in comprehending the change law of two-phase water and air flow under a strong shearing effect in the plug conduit,and provide useful insights for hydraulic design in fluid engineering.

关键词： Air-water flows bubble properties air diffusion process plug conduits experimental study

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Experimental Study on Mixed-Mode(Ⅰ–Ⅱ)Fracture Toughness of Freshwater Ice

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Acta Mechanica Solida Sinica 2024年第2期37卷 252-264页

作者： Yaozhong Xu mao zhou Xian Yi Wen Hua Jiuzhou Huang Wenyu Zhang Shiming Dong Key Laboratory of Deep Underground Science and Engineering Ministry of EducationCollege of Architecture and EnvironmentSichuan UniversityChengdu610065China Failure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan Province Sichuan UniversityChengdu610065China China Aerodynamics Research and Development Center/Low Speed Aerodynamics Research Institute Mianyang621000China College of Mechanical and Electrical Engineering Xichang UniversityXichang615000China

In recent years,the issue of aircraft icing has gained widespread *** breaking and detachment of dynamic ice can pose a threat to flight ***,the shedding and fracture mechanisms of dynamic ice are unclear and cannot meet the engineering needs of ice-shedding hazard ***,studying the fracture toughness of ice bodies has extremely important practical *** address this issue,this article uses a centrally cracked Brazilian disk(CCBD)specimen to measure the pure modeⅠtoughness and pure modeⅡfracture toughness of freshwater ice at different loading *** mixed-mode(Ⅰ–Ⅱ)fracture characteristics of ice are discussed,and the experimental results are compared and analyzed with the theoretical values of the generalized maximum tangential stress(GMTS)criterion considering the influence of *** results indicated that as the loading rate increases,the pure modeⅠtoughness and pure modeⅡfracture toughness of freshwater ice decrease,and the fracture toughness of freshwater ice is more sensitive to the loading rate.Ⅰn terms of fracture criteria,the theoretical value of the ratio of pure modeⅡfracture toughness to pure modeⅠfracture toughness based on the GMTS criterion is in good agreement with the experimental value,while the theoretical value based on the maximum tangential stress(MTS)criterion deviates significantly from the experimental value,indicating that the GMTS criterion considering the influence of T-stress can better predict the experimental results.

关键词： Freshwater ice Fracture criteria Centrally cracked Brazilian disk(CCBD) Mixed-mode(Ⅰ-Ⅱ) Loading rate

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Current research status of transarterial therapies for hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2024年第9期16卷 3752-3760页

作者： mao-Ting zhou Peng Zhang Qi mao Xiao-Qin Wei Lin Yang Xiao-Ming Zhang Department of Radiology Interventional Medical CenterScience and Technology Innovation CenterThe Affiliated Hospital of North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina School of Medical Imaging North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina

With continuous advancements in interventional radiology,considerable progress has been made in transarterial therapies for hepatocellular carcinoma(HCC)in recent years,and an increasing number of research papers on transarterial therapies for HCC have been *** this editorial,we comment on the article by Ma et al published in the recent issue of the World Journal of Gastrointestinal Oncology:“Efficacy and predictive factors of transarterial chemoembolization combined with lenvatinib plus programmed cell death protein-1 inhibition for unresectable HCC”.We focus specifically on the current research status and future directions of transarterial *** the future,more studies are needed to determine the optimal transarterial local treatment for *** the emergence of checkpoint immunotherapy modalities,it is expected that the results of trials of transarterial local therapy combined with systemic therapy will bring new hope to HCC patients.

关键词： Hepatocellular carcinoma Transarterial therapies Transarterial chemoembolization Hepatic artery infusion chemotherapy Transarterial embolization Transarterial radioembolization

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Role of radiomics in the diagnosis and treatment of gastrointestinal cancer

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World Journal of Gastroenterology 2022年第42期28卷 6002-6016页

作者： Qi mao mao-Ting zhou Zhang-Ping Zhao Ning Liu Lin Yang Xiao-Ming Zhang Department of Radiology Affiliated Hospital of North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina Department of Radiology Panzhihua Central HospitalPanzhihua 617000Sichuan ProvinceChina

Gastrointestinal cancer(GIC)has high morbidity and mortality as one of the main causes of cancer *** risk stratification is critical to guide patient management,but traditional imaging studies have difficulty predicting its biological *** emerging field of radiomics allows the conversion of potential pathophysiological information in existing medical images that cannot be visually recognized into high-dimensional quantitative image *** lesion characterization,therapeutic response evaluation,and survival prediction can be achieved by analyzing the relationships between these features and clinical and genetic *** recent years,the clinical application of radiomics to GIC has increased *** this editorial,we describe the latest progress in the application of radiomics to GIC and discuss the value of its potential clinical applications,as well as its limitations and future directions.

关键词： Gastrointestinal cancer Diagnosis Treatment Radiomics Therapeutic response Hepatocellular carcinoma

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Local hydraulic jump effects on sediment deposition in open-channel flume experiments

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Journal of Hydrodynamics 2023年第2期35卷 268-277页

作者： Shi-hao Fu mao-lin zhou Wei-lin Xu Wang-ru Wei Guo-guang Wang State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan UniversityChengdu610065China

When a river channel is narrow,bifurcated,or intersected,or when extreme weather or geological disasters cause shed rock masses to occupy a river flood channel,local hydraulic jumps may develop in the *** disasters such as landslides,floods,and debris flows occur upstream,will result in large transport rate of large-sized gravel *** particles may be blocked in hydraulic jump areas,causing river channel water depth to *** this study,the effect of local hydraulic jumps on the sediment deposition rate was investigated in flume *** ratio of upstream and downstream Froude numbers,particle size,Sediment supply intensity,and flow discharge all affected the sediment deposition *** increases in the ratio of upstream and downstream Froude numbers,particle size,and sediment supply intensity,the sediment deposition rate *** sediment deposition rate decreased with an increase in flow *** hydraulic conditions and particle properties jointly determined the sediment deposition rate in a hydraulic jump section,and an empirical formula was developed using those parameters to calculate the sediment deposition ***,to identify risks and prevent disasters in mountain rivers,local changes in hydraulic conditions and particle properties need to be jointly evaluated.

关键词： Hydraulic jump sediment deposition particle size upstream/downstream Froude numbers ratio sediment supply intensity flowdischarge

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