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Neural Regeneration Research 2022年第9期17卷 1955-1956页

作者： Jianli Hu li-qing jin Michael E.Selzer Shriners Hospitals Pediatric Research Center(Center for Neural Repair and Rehabilitation) Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPAUSA Department of Neurology Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPAUSA

Background:Failure of axon regeneration after spinal cord injury(SCI)underlies the paralysis that so profoundly affects patients’quality of *** factors are involved in the regeneration *** sulfate proteoglycans(CSPGs),normal constituents of the perineuronal nets in central nervous system(CNS),are secreted at the injury site and initially were thought to act as a purely physical *** the past decade,the receptor-like protein tyrosine phosphatases,protein tyrosine phosphatase sigma(PTPσ),and leukocyte common antigen-related phosphatase(LAR),have been identified as transmembrane receptors for *** two receptors for myelin-associated growth inhibitors,Nogo receptors 1 and 3(NgR1 and NgR3)also have been found to bind with CSPGs(Sharma et al.,2012).These findings suggest that CSPGs inhibit regeneration by interacting with these receptors,initiating downstream inhibitory signaling(Figure 1).

关键词： paralysis injury leukocyte

Small World Properties Generated by a New Algorithm Under Same Degree of All Nodes

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Communications in Theoretical Physics 2006年第5期45卷 950-954页

作者： li Yong FANG jin-qing liU Qiang liANG Yong China Institute of Atomic Energy P.O. Box 275-81 Beijing 102413 China

Based on the model of the same degree of all nodes we proposed before, a new algorithm, the so-called “spread all over vertices” （SAV） algorithm, is proposed for generating small-world properties from a regular ring lattices. During randomly rewiring connections the SAV is used to keep the unchanged number of links. Comparing the SAV algorithm with the Watts-Strogatz model and the “spread all over boundaries” algorithm, three methods can have the same topological properties of the small world networks. These results offer diverse formation of small world networks. It is helpful to the research of some applications for dynamics of mutual oscillator inside nodes and interacting automata associated with networks.

关键词： small world network the same degree of all nodes in the network “spread all over vertices”algorithm average shortest path length average clustering coefficient

Case Report:Congenital spinal intradural arachnoid cyst associated with intrathoracic meningocele in a child

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第6期11卷 429-432页

作者： Zheng-xi RAO jin li Si-qing HANG Chao YOU Department of Neurosurgery West China Hospital Siehuan University Chengdu 610041 China

Congenital spinal intradural arachnoid cyst associated with intrathoracic meningocele is very *** report a case in a 9-year-old Chinese boy who presented with a two-week history of progressive paraparesis and gait *** resonance imaging revealed that a dorsal intradural extramedullary cystic lesion extended from T1 to T5 and compressed the spinal cord.A left lateral intrathoracic meningocele pouch was found incidentally at the level of *** arachnoid cyst as well as meningocele was removed and the spinal cord compression was *** cyst was confirmed by histological *** patient recovered well *** is the second report of such a case in the world according to the available *** take-home message for our case is that the surgical approach should be individualized,depending on the size and location.

关键词： Spinal intradural arachnoid cyst Intrathoracic meningocele Spinal cord compression Surgical treatment

Time-domain dynamic constitutive model suitable for mucky soil site seismic response

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Earthquake Engineering and Engineering Vibration 2024年第1期23卷 1-13页

作者： Dong qing Chen Su jin liguo Zhou Zhenghua li Xiaojun Architectural Engineering Institute Huaiyin Institute of TechnologyHuai’an 223600China Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of TechnologyBeijing 100020China Institute of Geophysics China Earthquake AdministrationBeijing 100089China College of Transportation Science and Engineering Nanjing Tech UniversityNanjing 211816China

Soil nonlinear behavior displays noticeable effects on the site seismic *** study proposes a new functional expression of the skeleton curve to replace the hyperbolic skeleton *** integrating shear modulus and combining the dynamic skeleton curve and the damping degradation coefficient,the constitutive equation of the logarithmic dynamic skeleton can be obtained,which considers the damping effect in a soil dynamics *** on the finite difference method and the multi-transmitting boundary condition,a 1D site seismic response analysis program called Soilresp1D has been developed herein and used to analyze the time-domain seismic response in three types of *** the same time,this study also provides numerical simulation results based on the hyperbolic constitutive model and the equivalent linear *** results verify the rationality of the new soil dynamic constitutive *** can analyze the mucky soil site nonlinear seismic response,reflecting the deformation characteristics and damping effect of the silty *** hysteresis loop area is more extensive,and the residual strain is evident.

关键词： seismic response time-domain dynamic constitutive model logarithmic dynamic skeleton dampening effect mucky soil

Influence of pressure disturbance wave on dynamic response characteristics of liquid film seal for multiphase pump

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Petroleum Science 2024年第3期21卷 2048-2065页

作者： qing-Ping li jin-Ya Zhang Jia-Xiang Zhang Yong-Xue Zhang CNOOC Research Institute Company limited Beijing100028China State Key Laboratory of Natural Gas Hydrate Beijing100028China College of Mechanical and Transportation Engineering China University of PetroleumBeijing2249China

Slug flow or high GVF(Gas Volume Fraction)conditions can cause pressure disturbance waves and alternating loads at the boundary of mechanical seals for multiphase pumps,endangering the safety of multiphase pump *** mechanical seal model is simplified by using periodic boundary conditions and numerical calculations are carried out based on the Zwart-Gerber-Belamri cavitation ***(User Define Function)programs such as structural dynamics equations,alternating load equations,and pressure disturbance equations are embedded in numerical calculations,and the dynamic response characteristics of mechanical seal are studied using layered dynamic mesh *** results show that when the pressure disturbance occurs at the inlet,as the amplitude and period of the disturbance increase,the film thickness gradually *** the fundamental reason for the hysteresis of the film thickness change is that the pressure in the high-pressure area cannot be restored in a timely *** maximum value of leakage and the minimum value of axial velocity are independent of the disturbance period and determined by the disturbance *** mutual interference between enhanced waves does not have a significant impact on the film thickness,while the front wave in the attenuated wave has a promoting effect on the subsequent film thickness changes,and the fluctuation of the liquid film cavitation rate and axial velocity under the attenuated wave condition deviates from the initial *** with pressure disturbance conditions,alternating load conditions have a more significant impact on film thickness and *** actual operation,it is necessary to avoid alternating load conditions in multiphase pump mechanical seals.

关键词： Multiphase pump liquid film seal Pressure disturbance wave Dynamic response characteristics

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麦类壳多胞斑点病菌的快速检测方法研究

安徽农业科学 2024年第18期52卷 118-119,132页

作者：李金庆王英超邵秀玲季蕾张静尹伟力青岛海关技术中心山东青岛266109 烟台海关技术中心山东烟台264000 临沂科技职业学院山东临沂276000

利用麦类壳多胞斑点病菌β-tubulin一段保守基因序列,设计特异性引物进行麦类壳多胞斑点病菌的检测,并进行特异性与灵敏度验证。结果显示,该方法特异性强,灵敏度可达5 pg/μL,适合于麦类壳多胞斑点病菌的快速检测。

关键词： β-tubulin基因麦类壳多胞斑点病菌特异性灵敏度

Effects of interactions between arbuscular mycorrhizal fungi and bacteria on the growth of Lotus corniculatus L.:From the perspective of regulating rhizosphere fungal community

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Pedosphere 2024年第2期34卷 411-423页

作者： qing ZHANG jin CHEN Yingyue li Tao HUANG Kailing XIE jing ZHOU Xiaoyu li Schools of life Sciences Anhui Agricultural UniversityHefei 230036China National Engineering Laboratory of Crop Stress Resistance Breeding Anhui Agricultural UniversityHefei 230036China Anhui Province Key Laboratory of Crop Biology Anhui Agricultural UniversityHefei 230036China

Arbuscular mycorrhizal fungi(AMF)provide essential nutrients to crops and are affected by ***-solubilizing bacteria(PSB),nitrogen-fixing bacteria(NFB),and AMF have mutually beneficial relationships with plants,but the effects of their interactions on plant growth by regulating rhizosphere fungal community have not been sufficiently *** this study,a greenhouse pot experiment was conducted to investigate the interactions between AMF and bacteria(PSB and NFB)on the growth of Lotus corniculatus ***,the role of rhizosphere fungal community in the growth of Lotus corniculatus *** explored using Illumina MiSeq high-throughput *** results showed that combined inoculation of AMF with PSB and NFB increased plant biomass,plant height,and fungal colonization *** richness,complexity,and stability of rhizosphere fungal community also increased after combined inoculation of AMF with PSB and/or NFB,particularly with *** addition,combined inoculation of AMF with PSB and NFB enriched the abundance of beneficial microorganisms,with Chaetomium and Humicola showing the greatest *** structural equation model showed that the interactions of AMF with PSB and NFB promoted plant growth by affecting fungal network structure and soil enzyme activities involved in carbon,nitrogen,and phosphorus *** findings provide evidence for the effects of interactions of AMF with PSB and NFB on rhizosphere fungal community and plant growth.

关键词： colonization intensity colonization rate combined inoculation enzyme activity network structure nitrogen-fixing bacteria phosphatesolubilizing bacteria

Microstructural Evolutions and Mechanical Properties of Energetic Al_(1) (TiZrNbTaMoCr)_(15) High-Entropy Alloys

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Acta Metallurgica Sinica(English Letters) 2024年第4期37卷 620-632页

作者： Xuan-Hong Cai Zhen-Hua Wang Ben Niu jin-Feng li qing Wang Show authors Key Laboratory of Materials Modification By Laser Ion and Electron Beams(Ministry of Education)Engineering Research Center of High Entropy Alloy Materials(Liaoning Province)School of Materials Science and EngineeringDalian University of TechnologyDalian116024China Institute of Materials China Academy of Engineering PhysicsMianyang621908China

The present study focuses on investigating the microstructural evolutions and mechanical properties of energetic Al_(1)(TiZrNbTaMoCr)_(15) refractory high-entropy alloys with the different heat treatments at low Al content state. It is found that even with a reduction in the Al content, the strength of these alloys remains unaffected at room temperature and high temperature, while the plasticity improves significantly. In particular, the coherent BCC/B_(2) microstructure with needle-like B_(2) nanoprecipitates dispersed into the BCC matrix is formed in 873 K-aged Al_(1)Ti_(6)Zr_(2)Nb_(3)Ta_(3)Mo_(0.5)Cr_(0.5) alloy. Therefore, this alloy exhibits the highest compression yield strength (σ_(YS) = 1333 and 717 MPa) at room temperature and 1073 K, respectively. After 973 K-aged, the coherent BCC/B_(2) microstructure underwent destabilization, and the B_(2) phase transforms into the brittle Zr5Al3 phase which then coarsens and dominates the microstructure of S3-AlTa_(3) alloy after 1073 K-aged. Moreover, these current alloys exhibit exceptionally high theoretical exothermic enthalpy (ΔH), surpassing 11606 J·g^(−1), which highlights their significant potential as innovative high-performance energetic structural materials.

关键词： Refractory high-entropy alloy Coherent microstructure Mechanical property Exothermic enthalpy

Subscapular Bursa： Anatomy and Magnetic Resonance Appearance

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Chinese Medical Journal 2017年第14期130卷 1739-1740页

作者： Ji-Cheng Gong Na Chen Jia-Fei Chen Zhou Xu Yi WU jin-qing li Kang-Lai Tang Department of Orthopedic Surgery Sports Medicine Center Southwest Hospital Third Military Medical University Chongqing 400038 China Department of Digital Medicine Biomedical Engineering College Third Military Medical University Chongqing 400038 China Department of Radiology Southwest Hospital Third Military Medical University Chongqing 400038 China Department of Radiology 324th Hospital of the PLA Chongqing 400020 China

The definition of the subscapular bursa （SSB） remains *** researcher demonstrated that SSB was a separate pouch.[l] However,others believed that SSB was actually the superior subscapularis recess （SSR）,which is an outpouching of the glenohumeral joint capsule.[4] Whether or not the SSB and SSR are two different bursae must be ***,the fluid in the SSR revealed in magnetic resonance （MR） imaging has been regarded as an indication for a diagnosis of frozen shoulder.[3] Considering that the SSB and SSR are two different structures with a close spatial relationship,recognition of the MR appearance of SSB might have important diagnostic *** purposes of this study were to describe the anatomy of the SSB using a three-dimensional （3D） visualization technique based on the Chinese visible human （CVH） and to explore the MR appearance of the SSB.

关键词： Anatomy Bursa,Magnetic Resonance Imaging Shoulder Joint Synovial Visible Human Project

Effect of an Airbag-selective Portal Vein Blood Arrester on the liver after Hepatectomy:A New Technique for Selective Clamping of the Portal Vein

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Current Medical Science 2024年第2期44卷 380-390页

作者： Ce-xiong FU Xiao-ri QIN jin-song CHEN Jie ZHONG Yu-xu XIE Bi-dan li qing-qing FU Fang li jin-fang ZHENG Department of Hepatobiliary and Pancreatic Surgery Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 570311China University of South China Hengyang 421001China Department of Gastroenterology Gastroenterology Endoscopy CenterHainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 57031lChina Center of Clinical Laboratory Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 570311China Department of Radiology Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 570311China

Objective:A novel technique was explored using an airbag-selective portal vein blood arrester that circumvents the need for an intraoperative assessment of anatomical variations in patients with complex intrahepatic space-occupying ***:Rabbits undergoing hepatectomy were randomly assigned to 4 groups:intermittent portal triad clamping(PTC),intermittent portal vein clamping(PVC),intermittent portal vein blocker with an airbag-selective portal vein blood arrester(APC),and without portal blood occlusion(control).Hepatic ischemia and reperfusion injury were assessed by measuring the 7-day survival rate,blood loss,liver function,hepatic pathology,hepatic inflammatory cytokine infiltration,hepatic malondialdehyde levels,and proliferating cell nuclear antigen ***:liver damage was substantially reduced in the APC and PVC *** APC animals exhibited transaminase levels similar to or less oxidative stress damage and inflammatory hepatocellular injury compared to those exhibited by the PVC *** was significantly higher in the control group than in the other *** APC group had less bleeding than the PVC group because of the avoidance of portal vein skeletonization during ***,more operative time was saved in the APC group than in the PVC ***,the total 7-day survival rate in the APC group was higher than that in the PTC ***:Airbag-selective portal vein blood arresters may help protect against hepatic ischemia and reperfusion injury in rabbits undergoing partial *** technique may also help prevent liver damage in patients requiring hepatectomy.

关键词： hepatectomy portal vein hepatic damage selective clamping