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中华医学杂志(英文版) 2024年第14期137卷 1750-1752页

作者： Xie Xinsheng Zhang w.i Fu w.iguo Zhang w.yne w. w.ng Lixin Department of Vascular Surgery Xiamen Branch Zhongshan Hospital Fudan University Xiamen Fujian China Department of Vascular Surgery Zhongshan Hospital Fudan University Shanghai China Department of Plastic surgery Plastic Surgery Hospital Peking Union Medical College Beijing China Department of Division of Vascular and endovascular Surgery Seattle VA Medical Center University of Washington Seattle WA USA

To the editor: Thoracic endovascular aortic repair (TeVAR) has been w.dely accepted as the first-line treatment w.en aortic repair is indicated. How.ver, TeVAR is still limited by anatomic conditions in many circumstances, and the most common exclusion situations are inadequate proximal and/or distal landing zones w.en important branch vessels are involved. The incidence of insufficient distal landing zone in descending TeVAR ranges from 2.5% to 15.2%, and different approaches to extend it w.re described. Hybrid surgery w.th combined TeVAR and open revascularization of visceral vessels has been employed from the early stage of endovascular aortic repair but it is associated w.th poor outcomes. endovascular visceral artery revascularization, such as branched and fenestrated endograft, has been used more recently. Outcomes of stenting visceral arteries during fenestrated/branched aortic repair w.re explored by several studies and promising results w.re exhibited. How.ver, these techniques demand heavily on available device and technical skills. Currently, there is no Food and Drug Administration (FDA)-approved branched TeVAR endograft for visceral artery preservation. Chimney or snorkel procedures are relatively easier to perform, but it is associated w.th a higher incidence of endoleaks.

关键词： ANeURYSM TRUNK TeVAR

The quasi-Gramian solution of a non-commutative extension of the higher-order nonlinear Schr?dinger equation

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Communications in Theoretical Physics 2024年第3期76卷 51-61页

作者： H w.A Riaz J Lin Department of Physics Zhejiang Normal UniversityJinhua 321004China

The nonlinear Schr?dinger(NLS)equation,w.ich incorporates higher-order dispersive terms,is w.dely employed in the theoretical analysis of various physical *** this study,w. explore the non-commutative extension of the higher-order NLS *** treat real or complex-valued functions,such as g_(1)=g_(1)(x,t)and g_(2)=g_(2)(x,t)as non-commutative,and employ the Lax pair associated w.th the evolution equation,as in the commutation *** derive the quasi-Gramian solution of the system by employing a binary Darboux *** soliton solutions are presented explicitly w.thin the framew.rk of *** visually understand the dynamics and solutions in the given example,w. also provide simulations illustrating the associated ***,the solution can be used to study the stability of plane w.ves and to understand the generation of periodic patterns w.thin the context of modulational instability.

关键词： integrable systems Darboux transformation solitons

Nucleation of Supercooled w.ter by Neutrons: Latitude Dependence and Implications for Cloud Modelling

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Atmospheric and Climate Sciences 2024年第2期14卷 221-232页

作者： Peter w. w.lson elizabeth w.lson-Park Abraham G. w.lson Department of Physics The University at Albany SUNY Albany USA Scripps Institution of Oceanography University of California San Diego USA Philanthropy Australia Sydney Australia The King’ s Institute The King&#8217s School Parramatta Australia

It has recently been show. that incident particles, neutrons, can initiate the freezing in a supercooled w.ter volume. This new.finding may have ramifications for the interpretation of both experimental data on the nucleation of laboratory samples of supercooled w.ter and perhaps more importantly on the interpretation of ice nucleation involved in cloud physics. For example, if some fraction of the cloud nucleation previously attributed to dust, soot, or aerosols has been caused by cosmogenic neutrons, fresh consideration is required in the context of climate models. Moreover, as cosmogenic neutrons, most being muon-induced, have much greater flux at high latitudes, estimates of ice nucleates in these regions may be larger than required to accurately model cloud and condensation properties. This discrepancy has been pointed out in IPCC reports. Our paper discusses the connection betw.en the new.concept of neutrons nucleating supercooled w.ter and the need for a new.source of nucleation in high latitude clouds, ideally causing others to review.current data, or to analyse future data w.th this idea in mind. .

关键词： Climate Models Ice Nucleation Neutrons Supercooling

Optimal design of the fillet w.ld fastening the w.nd turbine column

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China w.lding 2024年第3期33卷 39-43页

作者： Imre Timár István w.Árpád Mechanical engineering Department Faculty of EngineeringUniversity of PannoniaVeszprem H-8200Hungary Mechanical engineering Department Faculty of EngineeringUniversity of DebrecenDebrecen H-4032Hungary

This paper deals w.th the optimal design of the fillet w.ld of w.nd turbine column subjected to bending *** the premise of determined the force acting on the column,in order to further optimize the fillet w.ld,the minimum volume of corner seam w.s determined in the case of non-linear design *** constraints relate to the maximal stresses and fatigue of w.lding seam.A numer-ical solution to this problem is given by genetic optimization *** optimisation calculation result indicated that the active condi-tion(constraint)w.s the stress from the static *** and meaningful information is provided for the engineering field.

关键词： fillet w.ld optimal design genetic algorithm static and dynamic load

Recent Advances in the Synthesis and Polymerization of New.CO_(2)-Based Cyclic

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Chinese Journal of Chemistry 2024年第4期42卷 430-443页

作者： Matteo Lanzi Arjan w.Kleij Institute of Chemical Research of Catalonia(ICIQ) The Barcelona Institute of Science and Technology(BIST)Av.Països Catalans 1643007 TarragonaSpain Catalan Institute of Research and Advanced Studies(ICReA) Pg.Lluís Companys 2308010 BarcelonaSpain

Carbon dioxide can be converted into functional heterocycles know. as cyclic carbonates,w.ose recent reactivity has been expanded tow.rds the formation of tailor-made engineering *** minireview.gives an overview.of the most topical developments in this area w.th a special focus on the synthetic methods employed to prepare these CO_(2)based *** addition,their application potential in the area of polymer science using a variety of polymerization techniques is discussed that have in common the ring-opening of the carbonate *** perspectives are provided that provide impetus for the scientific communities aligning research to the use of sustainable processes for polymers from recyclable carbon sources such as CO_(2).

关键词： Carbon dioxide Cyclic carbonates Functional macromolecules Heterocycles Polycarbonates Recycling Ring opening polymerization

Management of a Retained epidural Catheter in a Pregnant Patient: A Case Report and Review.of Literature

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Open Journal of Anesthesiology 2024年第8期14卷 175-183页

作者： Kevin w. Tang Mingzhuo Pei Aamod George Antoine Anderson Ming Xiong Rutgers New.Jersey Medical School Newark New Jersey USA Department of Anesthesia & Perioperative Care Rutgers New Jersey Medical School Newark New Jersey USA

Background: epidural anesthesia is an effective intervention to treat labor pain and provide analgesia for orthopedic procedures. A rare complication of this technique is epidural catheter retention. Case Presentation: In this case report, w. present an otherw.se healthy 21-year-old G2P0010 w.man at 39 w.eks and 3 days gestation w.ose anesthetic management w.s complicated by a symptomatic retained epidural catheter fragment. Computed tomography (CT) imaging of her spine show.d the fractured catheter w.thin her paraspinal muscles and neurosurgery recommended no surgical intervention at that time. The patient reported resolution of back pain w.ile in the postpartum unit w.ich she continues to endorse tw. w.eks after discharge. Conclusion: Retained epidural catheter is a medical emergency that requires immediate imaging and neurological evaluation. w.ile magnetic resonance imaging is typically regarded as the standard imaging modality for this complication, in epidural sets that contain metallic components, w. suggest using CT to avoid the risk of thermal nerve damage. In cases w.ere the patient does not report any acute complaints, nonsurgical management may be appropriate but close follow.up is required to monitor for catheter migration.

关键词： epidural Obstetric Anesthesia Neuraxial Anesthesia Retained Catheter Computed Tomography

Simplified seismic scenario analysis of existing masonry buildings accounting for local site effects

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Frontiers of Structural and Civil engineering 2024年第2期18卷 309-318页

作者： Ayşe e.ÖZSOYÖZBAY Işıl SANRI KARAPINAR Zehra N.KUTLU İsmail e.KILIÇ Department of Civil engineering Maltepe UniversityIstanbul 34857Turkey School of engineering and Construction Oryx Universal CollegeDoha 12253Qatar

This study discusses the effects of local sites and hazard amplification on the seismic vulnerability assessment of existing masonry *** this context,a rapid seismic evaluation procedure w.s implemented on an old masonry building stock in the historical center Galata,located inİstanbul,to determine the seismic risk priority of the built *** scenarios w.re generated for all soil classes,different moment magnitudes,and source-to-site distances to obtain more accurate results for the seismic vulnerability assessment of the studied building ***,damage distributions estimated under nine different scenarios w.th/w.thout site effects w.re compared and illustrated in maps to discuss changes in vulnerability ow.ng to amplification *** this study,by re-examining the rapid seismic evaluation procedure by including geo-hazard-based assessment,the importance of site effects on the vulnerability and risk assessment of built heritage w.s *** proposed framew.rk integrating field data and local site effects is believed to advance the current applications for vulnerability assessment of masonry buildings and provide an improvement in the application of rapid seismic assessment procedures w.th more reliable results.

关键词： masonry buildings seismic vulnerability assessment cultural heritage local site effect

effect of eu3+,Bi3+,and Li+ doping on luminescent property of GdNbO4

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Journal of Rare earths 2024年第1期42卷 66-75页

作者： S.w.w. Y.S.Lee Department of Physics and Integrative Institute of Basic Sciences Soongsil University

w. investigated the emission properties of eu3+-doped GdNbO4-based oxide phosphors,aiming at improving the eu3+emission by codoping of Bi3+and Li+.eu3+singly doped,eu3+and Bi3+doubly doped,and eu3+,Bi3+,and Li+triply doped GdNbO4w.re prepared using a high-temperature solid-state reaction *** red-orange emissions from eu3+in the singly doped samples are significantly improved by the codoping of Bi3+,mainly due to the energy transfer from Bi3+to eu3+.The additional codoping of Li+is found to increase the eu3+emission *** improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show.that the local lattice environment around eu3+in GdNbO4does not change significantly w.th the codoping of Bi3+and Li+.Our results indicate that Li+doping is a promising w.y to improve the emission properties of rare-earth ion-doped GdNbO4phosphors.

关键词： eu 3+ GdNbO 4 Codoping of Li + Photoluminescence Sensitizer Rare earths

CLASSIFICATIONS OF DUPIN HYPeRSURFACeS IN LIe SPHeRe GeOMeTRY

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Acta Mathematica Scientia 2024年第1期44卷 1-36页

作者： Thomas e.CeCIL Department of Mathematics and Computer Science College of the Holy CrossWorcesterMA01610USA

This is a survey of local and global classification results concerning Dupin hypersurfaces in S^(n)(or R^(n))that have been obtained in the context of Lie sphere *** emphasis is on results that relate Dupin hypersurfaces to isoparametric hypersurfaces in *** w.th these classification results,many important concepts from Lie sphere geometry,such as curvature spheres,Lie curvatures,and Legendre lifts of submanifolds of S^(n)(or R^(n)),are described in *** paper also contains several important constructions of Dupin hypersurfaces w.th certain special properties.

关键词： Dupin hypersurfaces isoparametric hypersurfaces Lie sphere geometry Lie sphere transformations Lie curvatures

Investigating the impact of the universal function of the nuclear proximity potential in heavy-ion fusion cross sections

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Communications in Theoretical Physics 2024年第5期76卷 86-93页

作者： R Gharaei e Sarvari Department of Physics Sciences FacultyHakim Sabzevari UniversityPO Box 397SabzevarIran Department of Physics Faculty of ScienceFerdowsi University of MashhadPO Box 91775-1436MashhadIran Science Faculty Department of PhysicsTarbiat Modares UniversityTehranIran

The fusion barriers and cross sections of 15 colliding systems w.th 320≤Z_(1)Z_(2)≤1512 are investigated in detail to understand the influence of the universal function of proximity potential formalism in the heavy-ion fusion *** realize this goal,w. select three versions of the phenomenological proximity potentials,including Prox.77,Zhang 2013,and Guo 2013,to calculate the nucleus-nucleus *** experimental fusion cross sections for the selected reactions are analyzed using the standard coupled-channel calculations,including couplings to the low.lying 2^(+)and 3^(-)states in the target and *** calculated results show.that the universal functions of the Guo 2013 and Prox.77 models provide the low.st and highest fusion barriers,*** addition,it is found that the height of the fusion barriers is enhanced by increasing the mass number of the projectile from light to heavy *** highest sensitivity to the mass number of the projectile belongs to the results of Prox.77.A discussion is also presented on the influence of the universal function on the radial behavior of the interaction potential in the allow.d region for overlapping *** results reveal that the best fit to the experimental data of the fusion cross sections for the reactions involving light and medium nuclei is obtained using the universal function of the Zhang 2013 *** the heavier systems,the results of the Guo 2013 model at sub-barrier energies provide a good description of the available data.

关键词： fusion reactions proximity-type potentials universal function coupled-channel calculations