检索结果-南通市图书馆

Correction method for moderate and severe degrees of hallux valgus associated with transfer metatarsalgia

World Journal of Orthopedics 2024年第3期15卷 238-246页

作者： Amangasy Zhanaspayev Nurlan Bokembayev Marat Zhanaspayev Aidos Tlemissov sabina Aubakirova alexander Prokazyuk Department of Traumatology and Orthopaedics The National Scientific Center of Traumatology and Orthopaedics Named after Academician Batpenov NDAstana 010000Kazakhstan Department of Traumatology and Paediatric surgery Non-Commercial Joint-Stock Company“Semey Medical University”Semey 071400Kazakhstan Department of Habilitation and Rehabilitation Center of Habilitation and Rehabilitation of Persons with Disabilities of the Abai RegionSemey 071400Kazakhstan Department of Anaesthesiology and Resuscitation Center of Nuclear Medicine and OncologySemey 071400Kazakhstan

BACKGROUND Hallux valgus(HV)is a common foot deformity that manifests with increasing age,especially in *** associated foot pain causes impaired gait and decreases quality of *** and severe HV is a deformity that is charac-terized by the involvement of lesser rays and requires complex surgical *** this study,we attempted to develop a procedure for this *** To analyse the treatment results of patients who underwent simultaneous surgical correction of all parts of a static forefoot *** We conducted a prospective clinical trial between 2016 and 2021 in which 30 feet with moderate or severe HV associated with Tailor’s bunion and metatarsalgia were surgically treated via a new method involving surgical correction of all associated *** method included a modified Lapidus procedure,M2M3 tarsometatarsal arthrodesis,intermetatarsal fusion of the M4 and M5 bases,and the use of an original external fixation apparatus to enhance correction ***,postoperative,and final follow-up radiographic data and American Orthopaedic Foot and Ankle society(AOFAs)scores were compared,and P valuessidered to indicate statistical *** The study included 28 females(93.3%)and 2 males feet(6.7%),20(66.7%)of whom had a moderate degree of HV and 10(33.3%)of whom had severe deformity.M2 and M3 metatarsalgia was observed in 21 feet,and 9 feet experienced pain only at *** mean follow-up duration was 11 *** patients had good correction of the HV angle[preoperative median,36.5 degrees,interquartile range(IQR):30-45;postoperative median,10 degrees,IQR:8.8-10;follow-up median,11.5 degrees,IQR:10-14;Psalgia was resolved in most patients(30 vs 5).There was a clinically negligible decrease in the corrected angles at the final follow-up,and the overall AOFAs score was significantly better(median,65 points,IQR:53.8-70;vs 80 points,IQR:75-85;PsION The developed me

关键词： Hallux valgus Metatarsalgia Tailor’s bunion Lapidus procedure Proximal metatarsal osteotomy splayfoot

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Determination of Thermal Properties of Unsmooth si Nanowires

引用

Chinese Physics Letters 2024年第1期41卷 51-56页

作者：刘世贤 alexander A.Barinov 訚菲 Vladimir I.Khvesyuk Department of Thermophysics Bauman Moscow State Technical UniversityMoscow 105005Russian Federation

We estimate the thermal properties of unsmooth si nanowires,considering key factors such as size(diameter),surface texture(roughness)and quantum size effects(phonon states)at different *** nanowires with a diameter of less than 20 nm,we highlight the importance of quantum size effects in heat capacity calculations,using dispersion relations derived from the modified frequency equation for the elasticity of a *** thermal conductivities of nanowires with diameters of 37,56,and 115nm are predicted using the Fuchs–sondheimer model and soffer’s specular ***,the roughness parameters are chosen to reflect the technological characteristics of the real *** findings reveal that surface texture plays a significant role in thermal conductivity,particularly in the realm of ballistic heat transfer within *** study provides practical recommendations for developing new thermal management materials.

关键词： nanowires roughness size

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Deformation,structure and potential hazard of a landslide based on InsAR in Banbar county,Xizang(Tibet)

引用

China Geology 2024年第2期7卷 203-221页

作者： Guan-hua Zhao Heng-xing Lan Hui-yong Yin Lang-ping Li alexander strom Wei-feng sun Chao-yang Tian College of Earth science and Engineering Shandong University of Science and TechnologyQingdao 266590China state Key Laboratory of Resources and Environmental Information system Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China school of Geological Engineering and Geomatics Chang’an UniversityXi’an 710054China Key Laboratory of Ecological Geology and Disaster Prevention Ministry of Natural ResourcesXi’an 710054China University of Chinese Academy of sciences Beijing 100049China JsC“Hydroproject Institute” Moscow 125993Russia

The Tibetan Plateau is characterized by complex geological conditions and a relatively fragile ecological *** recent years,there has been continuous development and increased human activity in the Tibetan Plateau region,leading to a rising risk of *** landslide in Banbar County,Xizang(Tibet),have been perturbed by ongoing disturbances from human engineering activities,making it susceptible to instability and displaying distinct *** this study,small baseline subset synthetic aperture radar interferometry(sBAs-InsAR)technology is used to obtain the Line of sight(LOs)deformation velocity field in the study area,and then the slope-orientation deformation field of the landslide is obtained according to the spatial geometric relationship between the satellite’s LOs direction and the ***,the landslide thickness is inverted by applying the mass conservation *** results show that the movement area of the landslide is about 6.57×10^(4)m^(2),and the landslide volume is about 1.45×10^(6)m^(3).The maximum estimated thickness and average thickness of the landslide are 39 m and 22 m,*** thickness estimation results align with the findings from on-site investigation,indicating the applicability of this method to large-scale earth *** deformation rate of the landslide exhibits a notable correlation with temperature variations,with rainfall playing a supportive role in the deformation process and displaying a certain *** activities exert the most substantial influence on the spatial heterogeneity of landslide deformation,leading to the direct impact of several prominent deformation areas due to human ***,utilizing the long short-term memory(LsTM)model to predict landslide displacement,and the forecast results demonstrate the effectiveness of the LsTM model in predicting landslides that are in a continuous development and movement *** landslide is still active,and based

关键词： Landslide InsAR Human activity Deformation structure LsTM model Engineering construction Thickness Neural network Machine learning Prediction and prevention Tibetan Plateau Geological hazards survey engineering

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Improved training framework in a neural network model for disruption prediction and its application on EXL-50

引用

Plasma science and Technology 2024年第5期26卷 29-39页

作者：蔡剑青梁云峰 alexander KNIEPs 齐东凯王二辉向皓明廖亮黄杰阳杰黄佳刘建文 Philipp DREWs 徐帅顾翔高轶琛罗宇李直 the EXL-50 Team Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung-PlasmaphysikPartner of the Trilateral Cluster(TEC)Jülich 52425Germany ENN science and Technology Development Co. LtdLangfang 065001People’s Republic of China

A neural network model with a classical annotation method has been used on the EXL-50tokamak to predict impending ***,the results revealed issues of overfitting and overconfidence in predictions caused by inaccurate *** mitigate these issues,an improved training framework has been *** this approach,soft labels from previous training serve as teachers to supervise the further learning process;this has lead to a significant improvement in predictive model ***,this enhancement is primarily attributed to the coupling effect of the soft labels and correction *** improved training framework introduces an instance-specific label smoothing method,which reflects a more nuanced model assessment on the likelihood of a *** presents a possible solution to effectively address the challenges associated with accurate labeling across different machines.

关键词： neural network disruption soft label EXL-50 tokamak

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Interstitial Doping of snO_(2) Film with Li for Indium-Free Transparent Conductor

引用

Chinese Physics Letters 2024年第3期41卷 140-145页

作者：陈兴谦李昊臻陈伟梅增霞 alexander Azarov Andrej Kuznetsov 杜小龙 Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China songshan Lake Materials Laboratory Dongguan 523808China Department of Physics Centre for Materials Science and NanotechnologyUniversity of OsloP.O.Box 1048BlindernN-0316 OsloNorway Guangdong sinoPrime Technology Co. Ltd.Dongguan 523808China school of Physical sciences University of Chinese Academy of SciencesBeijing 100049China

snO_(2)films exhibit significant potential as cost-effective and high electron mobility substitutes for In_(2)O_(3)*** this study,Li is incorporated into the interstitial site of the snO_(2)lattice resulting in an exceptionally low resistivity of 2.028×10^(-3)Ω·cm along with a high carrier concentration of 1.398×10^(20)cm^(-3)and carrier mobility of 22.02 cm^(2)/V·s.

关键词： exceptional resistivity substitute

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Cluster Analysis of the Roma-BZCAT Blazars

引用

Research in Astronomy and Astrophysics 2024年第5期24卷 117-139页

作者： Dmitry O.Kudryavtsev Yulia V.sotnikova Vladislav A.stolyarov Timur V.Mufakharov Valery V.Vlasyuk Margarita L.Khabibullina alexander G.Mikhailov Yulia V.Cherepkova special Astrophysical Observatory of the Russian Academy of sciences Nizhny Arkhyz 369167Russia Astrophysics Group Cavendish LaboratoryUniversity of CambridgeCambridge CB3 OHEUK Kazan Federal University 18 Kremlyovskaya StKazan 420008Russia

Based on the collected multiwavelength data, namely in the radio(NVss, FIRsT, RATAN-600), IR(WIsE),optical(Pan-sTARRs), UV(GALEX), and X-ray(ROsAT, swift-XRT) ranges, we have performed a cluster analysis for the blazars of the Roma-BZCAT catalog. Using two machine learning methods, namely a combination of PCA with k-means clustering and Kohonen's self-organizing maps(sOMs), we have constructed an independent classification of the blazars(five classes) and compared the classes with the known Roma-BZCAT classification(FsRQs, BL Lacs, galaxy-dominated BL Lacs, and blazars of an uncertain type) as well as with the high synchrotron peaked(HsP) blazars from the 3HsP catalog and blazars from the TeVCat catalog. The obtained groups demonstrate concordance with the BL Lac/FsRQ classification along with a continuous character of the change in the properties. The group of HsP blazars stands out against the overall distribution. We examine the characteristics of the five groups and demonstrate distinctions in their spectral energy distribution shapes. The effectiveness of the clustering technique for objective analysis of multiparametric arrays of experimental data is demonstrated.

关键词： methods data analysis-galaxies active-(galaxies:)BL Lacertae objects general

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nonlinear Rydberg exciton-polaritons in Cu2O microcavities

引用

Light(science & Applications) 2024年第4期13卷 619-627页

作者： Maxim Makhonin Anthonin Delphan Kok Wee song Paul Walker Tommi Isoniemi Peter Claronino Konstantinos Orfanakis sai Kiran Rajendran Hamid Ohadi Julian Heckötter Marc Assmann Manfred Bayer alexander Tartakovskii Maurice skolnick Oleksandr Kyriienko Dmitry Krizhanovskii Department of Physics and Astronomy University of SheffieldSheffield S37RHUK. Department of Physics and Astronomy University of ExeterStocker RoadExeter EX44PYUK. sUPA School of Physics and AstronomyUniversity of St AndrewsSt Andrews KY169SSUK. Fakultät Physik TU DortmundAugust-Schmidt-Straße 444227 DortmundGermany

Rydberg excitons(analogues of Rydberg atoms in condensed matter systems)are highly excited bound electron-hole states with large Bohr *** interaction between them as well as exciton coupling to light may lead to strong optical nonlinearity,with applications in sensing and quantum information ***,we achieve strong effective photon–photon interactions(Kerr-like optical nonlinearity)via the Rydberg blockade phenomenon and the hybridisation of excitons and photons forming polaritons in a Cu2O-filled *** pulsed resonant excitation polariton resonance frequencies are renormalised due to the reduction of the photon-exciton coupling with increasing exciton *** analysis shows that the Rydberg blockade plays a major role in the experimentally observed scaling of the polariton nonlinearity coefficient as∝n4.4±1.8 for principal quantum numbers up to n=*** high principal quantum numbers studied in a polariton system for the first time are essential for realisation of high Rydberg optical nonlinearities,which paves the way towards quantum optical applications and fundamental studies of strongly correlated photonic(polaritonic)states in a solid state system.

关键词： density Rydberg polar

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Impact of T_(i)/T_(e )ratio on ion transport based on EAsT H-mode plasmas

引用

Plasma science and Technology 2024年第4期26卷 68-78页

作者：刘建文臧庆梁云峰陈佳乐邬潇河 alexander KNIEPs 扈嘉辉金仡飞张斌储宇奇刘海庆吕波段艳敏李妙辉陈颖杰龚先祖 the EAsT Team Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China University of science and Technology of China Hefei 230026People’s Republic of China Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung-PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC)Jülich 52425Germany

At the EAsT tokamak, the ion temperature(T_(i)) is observed to be clamped around 1.25 keV in electron cyclotron resonance(ECR)-heated plasmas, even at core electron temperatures up to 10 keV(depending on the ECR heating power and the plasma density). This clamping results from the lack of direct ion heating and high levels of turbulence-driven transport. Turbulent transport analysis shows that trapped electron mode and electron temperature gradient-driven modes are the most unstable modes in the core of ECR-heated H-mode plasmas. Nevertheless, recently it was found that the T_(i)/T_(e)ratio can increase further with the fraction of the neutral beam injection(NBI) power, which leads to a higher core ion temperature(Ti0). In NBI heating-dominant H-mode plasmas, the ion temperature gradient-driven modes become the most unstable ***, a strong and broad internal transport barrier(ITB) can form at the plasma core in high-power NBI-heated H-mode plasmas when the T_(i)/T_(e)ratio approaches ~1, which results in steep core Teand Tiprofiles, as well as a peaked neprofile. Power balance analysis shows a weaker Teprofile stiffness after the formation of ITBs in the core plasma region, where Ticlamping is broken,and the core Tican increase further above 2 keV, which is 80% higher than the value of Ticlamping in ECR-heated plasmas. This finding proposes a possible solution to the problem of Ticlamping on EAsT and demonstrates an advanced operational regime with the formation of a strong and broad ITB for future fusion plasmas dominated by electron heating.

关键词： ion temperature clamping transport neutral beam injection stiffness internal transport barrier

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Characteristics of the sOL ion-to-electron temperature ratio on the J-TEXT tokamak with different plasma configurations

引用

Plasma science and Technology 2024年第2期26卷 13-21页

作者：李存凯梁云峰江中和周松华建坤阳杰杨庆虎 alexander KNIEPs Philipp DREWs 徐鑫毛飞越谢伟杨雨桐郭金龙李杨波任正康陈志鹏王能超 the J-TEXT Team International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People's Republic of China Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung—PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC)Julich 52425Germany 不详

Accurate measurement of the average plasma parameters in the edge region,including the temperature and density of electrons and ions,is critical for understanding the characteristics of the scrape-off layer(sOL) and divertor plasma transport in magnetically confined fusion *** the J-TEXT tokamak,a multi-channel retarding field analyzer(RFA) probe has been developed to study average plasma parameters in the edge region under various poloidal divertor and island divertor *** edge radial profile of the ion-to-electron temperature ratio,τ_(i/e),has been determined,which gradually decreases as the sOL ion self-collisionality,v_(sOL)*,*** is broadly consistent with what has been observed previously from various tokamak ***,the comparison of experimental results under different configurations shows that in the poloidal divertor configuration,even under the same v_(sOL)*,τ_(i/e) in the sOL region becomes smaller as the distance from the X-point to the target plate *** the island divertor configuration,τ_(i/e) near the O-point is higher than that near the X-point at the same v_(sOL)*,and both are higher than those in the limiter *** results suggest that the magnetic configuration plays a critical role in the energy distributions between electrons and ions at the plasma boundary.

关键词： ion temperature island divertor poloidal divertor retarding field analyzer(RFA)probe

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Prevalence of Dental Anomalies among Patients Who Report to the Komfo Anokye Teaching Hospital’s Orthodontic Clinic

引用

Open Journal of stomatology 2024年第2期14卷 103-117页

作者： Ama Agyeibea Amuasi Daniel K. sabbah alexander Oti-Achempong Rahman N. Mamah The Department Child Oral Health & Orthodontics School of Medicine and Dentistry College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana The Department of Oral & Maxillofacial sciences School of Medicine and Dentistry College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana

BACKGROUND: Dental anomalies are variations from the established well-known general anatomy and morphology of the tooth as a result of disturbances during tooth formation. They can be developmental, congenital, or acquired and may be localized to a single tooth or involve systemic conditions. AIM: To evaluate the prevalence of dental anomalies in patients who report to the Komfo Anokye Teaching Hospital (KATH) dental clinics. METHOD: A descriptive cross-sectional design was used with a sample size of 92 patients aged 18 or older, obtained through convenience sampling. Data analysis was performed using sPss version 26.0. REsULTs: The study included 92 patients aged 18 to 72 years, with 47.8% males and 52.2% females. Dental anomalies were observed in 51.1% of participants, with a higher prevalence in females (55.3%). The most common anomalies were diastema (48.3%), impacted teeth (22.0%), dilaceration (11.9%), and peg-shaped lateral teeth (6.8%). CONCLUsION: This study highlights the importance of conducting thorough dental examinations to identify and address dental anomalies, which may have implications for treatment. Early detection and correction of these anomalies are crucial to prevent future complications.

关键词： Dental Anomalies Prevalence Impacted Teeth Dilaceration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：