检索结果-南通市图书馆

Arthroscopic treatment of iliopsoas tendinitis after total hip arthroplasty with acetabular cup malposition: Two case reports

引用

World Journal of Clinical Cases 2020年第21期8卷 5326-5333页

作者： Heejae Won Kwang-Hwan kim Jae-Wook Jung shin-yoon kim Seung-Hoon Baek Department of Orthopedic Surgery School of MedicineKyungpook National UniversityKyungpook National University Hospital130 Dongdeok-roJung-GuDaegu 41944South Korea

BACKGROUND Optimal treatment for iliopsoas tendinitis after total hip arthroplasty(THA)with cup malposition,iliopsoas release alone or with cup revision,is controversial,particularly in young,active ***,arthroscopic iliopsoas tendon(IPT)release in these patients has been rarely described,and midterm effects of this procedure on THA longevity and groin pain recurrence remain *** performed arthroscopic IPT release after THA and report midterm outcomes in two young patients with acetabular cup *** SUMMARY In the two patients,groin pain started early after *** examination revealed nonspecific findings,and laboratory tests showed no evidence of *** and computed tomography showed reduced acetabular component anteversion angle and anterior cup prominence of more than 16 *** therapeutic diagnosis,ultrasonography-guided lidocaine with steroid was injected into the IPT *** both patients,groin pain improved initially but worsened after a few ***,the patients underwent arthroscopic IPT release under spinal *** revealed synovitis with fibrous tissues around the IPT and various lesions related to the implants after *** tenotomy and debridement with biopsy were performed;histopathologic studies showed chronic inflammation with synovial *** patients were encouraged to start walking immediately after surgery,and they returned to complete daily function early after *** experienced no recurrence of groin pain or any implant-related problems 5 years *** Arthroscopic IPT release for cup malposition produced excellent midterm outcomes without recurrence of groin pain and implant-related problems.

关键词： Iliopsoas tendinitis Total hip arthroplasty Cup malposition Arthroscopy Tenotomy Case report

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

Surgical strategy of the treatment of atypical femoral fractures

引用

World Journal of Orthopedics 2023年第5期14卷 302-311页

作者： Bum-Jin Shim Heejae Won shin-yoon kim Seung-Hoon Baek Department of Orthopedic Surgery Kyungpook National University Chilgok HospitalDaegu 41404South Korea Department of Orthopedic Surgery Kyungpook National UniversityCollege of MedincineDaegu 41944South Korea Department of Orthopedic Surgery Kyungpook National University HospitalKyungpook National UniversityCollege of MedincineDaegu 41944South Korea

The atypical femoral fracture(AFF)has been attracting significant attention because of its increasing incidence;additionally,its treatment is challenging from biological and mechanical *** surgery is often required to manage complete AFFs,clear guidelines for the surgical treatment of AFFs are currently *** reviewed and described the surgical treatment of AFFs and the surveillance of the contralateral *** complete AFFs,cephalomedullary intramedullary nailing spanning the entire length of the femur can be *** surgical techniques to overcome the femoral bowing common in AFFs include a lateral entry point,external rotation of the nail,and the use of a nail with a small radius of curvature,or a contralateral *** the case of a narrow medullary canal,severe femoral bowing,or pre-existing implants,plate fixation may be considered as an *** incomplete AFFs,prophylactic fixation depends on several risk factors,such as a subtrochanteric location,presence of a radiolucent line,functional pain,and condition of the contralateral femur;the same surgical principles as those in complete AFFs can be ***,once AFF is diagnosed,clinicians should recognize the increased risk of contralateral AFFs,and close surveillance of the contralateral femur is recommended.

关键词： Atypical femoral fracture Surgical treatment Surveillance Contralateral femur Femoral bowing

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

Does proximal femoral nail antirotation achieve better outcome than previous-generation proximal femoral nail?

引用

World Journal of Orthopedics 2020年第11期11卷 483-491页

作者： Seung-Hoon Baek Seunggil Baek Heejae Won Jee-Wook yoon Chul-Hee Jung shin-yoon kim Department of Orthopedic Surgery Kyungpook National University HospitalDaegu 41944South Korea Department of Orthopedic Surgery School of MedicineKyungpook National UniversityDaegu 41944South Korea Department of Orthopedic Surgery Goodssen HospitalDaegu 42010South Korea

BACKGROUND There are few studies in the literature comparing the clinical outcomes and radiographic results of proximal femoral nail(PFN)and proximal femoral nail antirotation(PFNA)for pertrochanteric femoral fracture(PFF)in elderly *** To evaluate both clinical and radiographic outcomes after fixation with PFN and PFNA in an elderly patient *** One hundred fifty-eight patients older than 65 years with PFF who underwent fixation with either PFN or PFNA were ***-three patients underwent fixation with PFN,whereas 85 were fixed with *** mean follow-up was 2.4 years(range,1-7 years).Clinical outcome was measured in terms of operation time,postoperative function at each follow-up visit,and mortality within one *** evaluation included reduction quality after surgery,Cleveland Index,tip-apex distance(TAD),union rate,time to union,and sliding distance of the screw or *** including nonunion,screw cutout,infection,osteonecrosis of the femoral head,and implant breakage were also *** Postoperative function was more satisfactory in patients who underwent PFNA than in those who underwent PFN(P=0.033).Radiologically,the sliding difference was greater in PFN than in PFNA patients(6.1 and 3.2 mm,respectively,P=0.036).The rate of screw cutout was higher in the PFN group;eight for PFN(11.0%)and two for PFNA patients(2.4%,P=0.027).There were no differences between the two groups in terms of operation time,mortality rate at one year after the operation,adequacy of reduction,Cleveland Index,TAD,union rate,time to union,nonunion,infection,osteonecrosis,or implant *** Elderly patients with PFF who underwent PFNA using a helical blade demonstrated better clinical and radiographic outcomes as measured by clinical score and sliding distance compared with patients who underwent PFN.

关键词： Pertrochanteric fracture Proximal femoral nail Proximal femoral nail antirotation Sliding distance Cutout Outcome

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

股骨头坏死塌陷的预测：改良Kerboul法在MRI上的应用

引用

骨科动态 2007年第1期3卷 9-14页

作者： YONG-CHAN HA WOON HWAJUNG JANG-R.AK kim NAK HOON SEONG shin-yoon kim KYUNG-HOI KOO 陈云苏（译）不详上海第六人民医院骨科 200233

背景：在MRI上测量相加坏死角度可预测股骨头坏死致髋关节塌陷的危险性。方法：对连续33例37髋患者的早期骨坏死的髋关节进行研究。采用改良Kerboul等方法，测量正中冠状位和正中矢状位MRI上（非前后位和侧位X线片）骨坏死累及股骨头表... 详细信息

背景：在MRI上测量相加坏死角度可预测股骨头坏死致髋关节塌陷的危险性。方法：对连续33例37髋患者的早期骨坏死的髋关节进行研究。采用改良Kerboul等方法，测量正中冠状位和正中矢状位MRI上（非前后位和侧位X线片）骨坏死累及股骨头表面的弧度，计算两角度之和。基于计算的相加坏死角度的度数，将髋关节分为四组：1级（〈200°），2级（200°-249°），3级（250°-299°），4级（≥300°在初始评估后，患者被随机分入髓芯减压组或非手术组进行治疗，同时接受正规随访直至股骨头出现塌陷或至少观察5年。结果：7例4级的髋关节和16例3级的髋关节在36个月出现了股骨头塌陷。9例2级的髋关节中的6例出现塌陷，5例1级的髋关节均未出现塌陷（10g-rank检验，p〈0．01）。研究期间，4例相加坏死角度≤190。（低风险组）的髋关节无1例出现塌陷，25例相加坏死角度≥240°（高风险组）的髋关节均出现塌陷，8例相加坏死角度界于190°-240°（中风险组）的髋关节中有4例（50％）出现塌陷。结论：使用MRI扫描代替X线片测量Kerboul相加坏死角度评估股骨头坏死致髋关节塌陷的可能性是一种好的方法。可信水平：预后性研究，上级。进一步可信度参见作者介绍。

关键词：股骨头坏死塌陷 MRI扫描改良预测 X线片测量早期骨坏死髋关节关节塌陷

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

Synaptic a-Si:H/a-Ga_(2)O_(3) phototransistor inspired by the phototaxis behavior of organisms with all-optical and all-electrical stimulation modes

引用

Nano Research 2024年第8期17卷 7631-7642页

作者： Youngbin yoon Youngki kim Soowon Choi Jungdae Kwon Myunghun shin School of Electronics and Information Engineering Korea Aerospace UniversityGoyang10540Republic of Korea Nano Materials Division Korea Institute of Materials ScienceChangwon 51508Republic of Korea Department of Materials Science and Engineering Pusan National UniversityBusan 46241Republic of Korea

To improve neuromorphic computing performance,neuromorphic system components should mimic the behaviors of organic *** this study,a synaptic a-Si:H/a-Ga_(2)O_(3)phototransistor featuring all-optical and-electrical emulation is fabricated in a manner advantageous for complementary metal-oxide-semiconductor process *** phototransistor exhibits excitatory and inhibitory synaptic behaviors under stimulation by both optical and electrical *** mimics several essential synaptic functions,including excitatory postsynaptic current,inhibitory postsynaptic current,short-term memory,long-term memory,pairedpulse facilitation,and spike-timing-dependent *** optical and electrical modulation mechanisms are confirmed to arise from the a-Si:H/a-Ga_(2)O_(3) heterojunction structure and interface effects,and the device is shown to operate at low power in both optical and electrical *** all-optical weight modulation function is applied to the wavelength-differential behavior response of zebrafish,successfully mimicking the color perception process of the ***,to verify the translation of the optoelectrical-derived synaptic behaviors of the phototransistor into artificial neuromorphic computation,handwritten digit image recognition of the Modified National Institute of Standards and Technology dataset is performed by a convolutional neural network,with a demonstrated average learning accuracy of 98.46%.These findings verify the applicability of the synaptic a-Si:H/a-Ga_(2)O_(3) phototransistor in neuromorphic computing.

关键词： synaptic phototransistor artificial synapse phototaxis neuromorphic computing interface charge state optoelectronic synaptic device

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

Analysis of Feature Importance and Interpretation for Malware Classification

引用

Computers, Materials & Continua 2020年第12期65卷 1891-1904页

作者： Dong-Wook kim Gun-yoon shin Myung-Mook Han Department of Computer Engineering Gachon UniversitySungnam-si13120Korea Department of Software Gachon UniversitySungnam-si13120Korea

This study was conducted to enable prompt classification of malware,which was becoming increasingly *** do this,we analyzed the important features of malware and the relative importance of selected features according to a learning model to assess how those important features were ***,the analysis features were extracted using Cuckoo Sandbox,an open-source malware analysis tool,then the features were divided into five categories using the extracted *** 804 extracted features were reduced by 70%after selecting only the most suitable ones for malware classification using a learning model-based feature selection method called the recursive feature ***,these important features were *** level of contribution from each one was assessed by the Random Forest classifier *** results showed that System call features were mostly *** the end,it was possible to accurately identify the malware type using only 36 to 76 features for each of the four types of malware with the most analysis samples *** were the Trojan,Adware,Downloader,and Backdoor malware.

关键词： Recursive feature elimination model interpretability feature importance malware classification

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

A Unified Buffering Management with Set Divisible Cache for PCM Main Memory

引用

Journal of Computer Science & Technology 2016年第1期31卷 137-146页

作者： Mei-Ying Bian Su-Kyung yoon Jeong-Geun kim Sangjae Nam shin-Dug kim Department of Computer Science Yonsei University Seoul 120-749 Korea

This research proposes a phase-change memory （PCM） based main memory system with an effective combi- nation of a superblock-based adaptive buffering structure and its associated set divisible last-level cache （LLC）. To achieve high performance similar to that of dynamic random-access memory （DRAM） based main memory, the superblock-based adaptive buffer （SABU） is comprised of dual DRAM buffers, i.e., an aggressive superblock-based pre-fetching buffer （SBPB） and an adaptive sub-block reusing buffer （SBRB）, and a set divisible LLC based on a cache space optimization scheme. According to our experiment, the longer PCM access latency can typically be hidden using our proposed SABU, which can significantly reduce the number of writes over the PCM main memory by 26.44%. The SABU approach can reduce PCM access latency up to 0.43 times, compared with conventional DRAM main memory. Meanwhile, the average memory energy consumption can be reduced by 19.7%.

关键词： memory hierarchy memory structure,cache memory buffer management

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

Unknown Attack Detection:Combining Relabeling and Hybrid Intrusion Detection

引用

Computers, Materials & Continua 2021年第9期68卷 3289-3303页

作者： Gun-yoon shin Dong-Wook kim Sang-Soo kim Myung-Mook Han Department of Computer Engineering Gachon UniversitySungnam-si13120Korea Agency for Defense Development Songpa Seoul05661Korea Department of Software Gachon UniversitySungnam-si13120Korea

Detection of unknown attacks like a zero-day attack is a research field that has long been ***,advances in Machine Learning(ML)and Artificial Intelligence(AI)have led to the emergence of many kinds of attack-generation tools developed using these technologies to evade detection *** detection and misuse detection are the most commonly used techniques for detecting intrusion by unknown *** anomaly detection is adequate for detecting unknown attacks,its disadvantage is the possibility of high false *** detection has low false alarms;its limitation is that it can detect only known *** overcome such limitations,many researchers have proposed a hybrid intrusion detection that integrates these two detection *** method can overcome the limitations of conventional methods and works better in detecting unknown ***,this method does not accurately classify attacks like similar to normal or known ***,we proposed a hybrid intrusion detection to detect unknown attacks similar to normal and known *** anomaly detection,the model was designed to perform normal detection using Fuzzy c-means(FCM)and identify attacks hidden in normal predicted data using *** misuse detection,the model was designed to detect previously known attacks using Classification and Regression Trees(CART)and apply Isolation Forest(iForest)to classify unknown attacks hidden in known *** an experiment result,the application of relabeling improved attack detection accuracy in anomaly detection by approximately 11%and enhanced the performance of unknown attack detection in misuse detection by approximately 10%.

关键词： Unknown attack hybrid intrusion detection fuzzy c-means relabeling CART iForest

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

Authentication mechanism for fast handoff in cdma2000-WiBro interworking

引用

Science China(Information Sciences) 2010年第1期53卷 137-146页

作者： HONG Do Won kim Je yoon shin Sang Uk Electronics and Telecommunications Research Institute Penta Security Systems Inc. Pukyong National University

In this paper, we propose the authentication mechanism for a handoff in cdma2000-WiBro interworking environment. In the interworking environment, the handoff procedure requires the authentication on MS for the access control and the accounting. In the handoff procedure, it is required to perform the EAP-AKA authentication process with cdma2000-HN (home network) because TN (target network) does not have the information for the authentication about MS. This process has relatively long delay. Therefore, the fast handoff authentication mechanism for reducing the long delay in the handoff procedure is needed. Thus this paper proposes the handoff authentication method of using the reactive context transfer and ticket forwarding method, to provide the fast handoff in cdma2000-WiBro interworking environment. The proposed scheme satisfies security requirements on handoff and has the advantage of low signaling overhead in handoff authentication.

关键词： authentication cdma2000 WiBro interworking handoff

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Anomaly Detection Based on Discrete Wavelet Transformation for Insider Threat Classification

引用

Computer Systems Science & Engineering 2023年第7期46卷 153-164页

作者： Dong-Wook kim Gun-yoon shin Myung-Mook Han Department of Computer Engineering Gachon UniversitySeongnam-si13120Korea Department of AI Software Gachon UniversitySeongnam-si13120Korea

Unlike external attacks,insider threats arise from legitimate users who belong to the *** individuals may be a potential threat for hostile behavior depending on their *** insider detection,many intrusion detection systems learn and prevent known scenarios,but because malicious behavior has similar patterns to normal behavior,in reality,these systems can be ***,because insider threats share a feature space similar to normal behavior,identifying them by detecting anomalies has *** study proposes an improved anomaly detection methodology for insider threats that occur in cybersecurity in which a discrete wavelet transformation technique is applied to classify normal *** *** discrete wavelet transformation technique easily discovers new patterns or decomposes synthesized data,making it possible to distinguish between shared *** verify the efficacy of the proposed methodology,experiments were conducted in which normal users and malicious users were classified based on insider threat scenarios provided in Carnegie Mellon University’s Computer Emergency Response Team(CERT)*** experimental results indicate that the proposed methodology with discrete wavelet transformation reduced the false-positive rate by 82%to 98%compared to the case with no wavelet ***,the proposed methodology has high potential for application to similar feature spaces.

关键词： Anomaly detection cybersecurity discrete wavelet transformation insider threat classification

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：