检索结果-南通市图书馆

Chinese Medical Journal 2022年第15期135卷 1876-1877页

作者： jong seok lee Sang Dong Kim Department of Surgery Division of Vascular and Transplant SurgeryCollege of MedicineThe Catholic University of KoreaSeoul 06591Korea

To the Editor:A 71-year-old male patient was referred for incidentally delayed type Ib_endoleak_on computed tomographic angiography(CTA).He had been performed endovascular abdominal aortic aneurysm repair(EVAR)with the Zenith(Cook Inc,Bloomington,IN,USA)stent-grafts for right common iliac artery(CIA)aneurysm with a diameter of 4.4 cm at 17 months ago.

关键词： anatomy aneurysm abdominal

Tyrosine-mediated analog resistive switching for artificial neural networks

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第1期16卷 858-864页

作者： Min-Kyu Song seok Daniel Namgung Hojung lee Jeong Hyun Yoon Young-Woong Song Kang Hee Cho Yoon-Sik lee jong-seok lee Ki Tae Nam Jang-Yeon Kwon School of Integrated Technology Yonsei UniversityIncheon 21983Republic of Korea Department of Mechanical Engineering Massachusetts Institute of TechnologyMA 02139USA Research Laboratory of Electronics Massachusetts Institute of TechnologyMA 02139USA Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Soft Foundry Seoul National UniversitySeoul 08826Republic of Korea School of Chemical and Biological Engineering Seoul National UniversitySeoul 08826Republic of Korea

The fourth industrial revolution indispensably brings explosive data processing and storage;thus,a new computing paradigm based on artificial intelligence-enabling device structure is urgently required.Memristors have received considerable attention in this regard because of their ability to process and store data at the same location.However,fundamental problems with abrupt switching characteristics limit their practical application.To address this problem,we utilized the concept of metaplasticity inspired by biosystems and observed gradual switching in the peptide-based memristor at high proton conductivity.An unexpectedly high slope value>1.7 in the logI–V curve at low voltage(≤400 mV)was considered the main origin,and it might arise from the modulatory response of proton ions on the threshold of Ag ion migration in the peptide film.With the obtained gradual switching property at high proton conductivity,the device showed significantly increased accuracy of image recognition(~82.5%).We believe that such a demonstration not only contributes to the practical application of neuromorphic devices but also expands the bioinspired functional synthetic platform.

关键词： artificial synapse neuromorphic computing proton conductor peptide materials artificial neural network

Humidity-induced synaptic plasticity of ZnO artificial synapses using peptide insulator for neuromorphic computing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2022年第24期119卷 150-155页

作者： Min-Kyu Song Hojung lee Jeong Hyun Yoon Young-Woong Song seok Daniel Namgung Taehoon Sung Yoon-Sik lee jong-seok lee Ki Tae Nam Jang-Yeon Kwon School of Integrated Technology Yonsei UniversityIncheon 21983South Korea Department of Materials Science and Engineering Seoul National UniversitySeoul 08826South Korea Soft Foundry Seoul National UniversitySeoul 08826South Korea School of Chemical and Biological Engineering Seoul National UniversitySeoul 08826South Korea

Neuromorphic devices inspired by the human brain have attracted significant attention because of their excellent ability for cognitive and parallel computing.This study presents ZnO-based artificial synapses with peptide insulators for the electrical emulation of biological synapses.We demonstrated the dynamic responses of the device under various environmental conditions.The proton-conducting property of the tyrosine-rich peptide enables time-dependent responses under ambient conditions such that various aspects of synaptic behaviors are emulated by the devices.The transition from short-term memory to longterm memory is achieved via electrochemical doping of ZnO by protons.Furthermore,we demonstrate an image classification simulation using a multi-layer perceptron model to evaluate the potential of the device for use in neuromorphic computing.The neural network based on our device achieved a recognition accuracy of 87.47% for the MNIST handwritten digit images.This work proposes a novel device platform inspired by biosystems for brain-mimetic hardware systems.

关键词： Artificial synapse Neuromorphic computing Oxide semiconductor Proton conductor Artificial neural network

E2E-BPF microscope:extended depth-of-field microscopy using learning-based implementation of binary phase filter and image deconvolution

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2023年第12期12卷 2610-2623页

作者： Baekcheon Seong Woovin Kim Younghun Kim Kyung-A Hyun Hyo-Il Jung jong-seok lee Jeonghoon Yoo Chulmin Joo Department of Mechanical Engineering Yonsei UniversitySeoul 03722Republic of Korea The DABOM Inc Seoul 03722Republic of Korea School of Integrated Technology Yonsei UniversityIncheon 21983Republic of Korea

Several image-based biomedical diagnoses require high-resolution imaging capabilities at large spatial scales.However,conventional microscopes exhibit an inherent trade-off between depth-of-field(DoF)and spatial resolution,and thus require objects to be refocused at each lateral location,which is time consuming.Here,we present a computational imaging platform,termed E2E-BPF microscope,which enables large-area,high-resolution imaging of large-scale objects without serial refocusing.This method involves a physics-incorporated,deep-learned design of binary phase filter(BPF)and jointly optimized deconvolution neural network,which altogether produces high-resolution,high-contrast images over extended depth ranges.We demonstrate the method through numerical simulations and experiments with fluorescently labeled beads,cells and tissue section,and present high-resolution imaging capability over a 15.5-fold larger DoF than the conventional microscope.Our method provides highly effective and scalable strategy for DoF-extended optical imaging system,and is expected to find numerous applications in rapid image-based diagnosis,optical vision,and metrology.

关键词： image diagnosis binary

Surgical Management of Symptomatic Adventitial Cystic Disease of the Popliteal Artery as a Cause of Deep Vein Thrombosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2018年第17期131卷 2141-2142页

作者： jong seok lee Jeong Kye Hwang Sun Cheol Park Sang Dong Kim Department of Surgery Division Medical Detachment Ministry of National Defense Gangwon-do 24151 Korea Department of Surgery Division of-Vascular and Transplant Surgery College of Medicine The Catholic University of Korea Seoul 06591 Korea

To the Editor： A 67-year-old female was referred for persisted swelling in right leg despite of anticoagulation during 2 months for deep vein thrombosis （DVT） of the right popliteal vein （PV）. Initial duplex ultrasonography of local clinic at 2 months ago showed the acute DVT of right PV with thrombus and dilated vein [Figure 1a].

关键词：

Erratum to:Tyrosine-mediated analog resistive switching for artificial neural networks

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第8期16卷 11543-11543页

Gastric cancer patients at high-risk of having synchronous cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2006年第16期12卷 2588-2592页

作者： Jun Ho lee Ja Seong Bae Keun Won Ryu jong seok lee Sook Ryun Park Chan Gyoo Kim Myoung Cheorl Kook Il Ju Choi Young Woo Kim Jae-Gahb Park Jae-Moon Bae Research Institute & Hospital National Cancer Center809 Madul-dongIlsandong-guGoyang-siGyeonggi-do411-769Korea

瞄准：识别病人与一在胃的癌症病人之中有同步癌症高风险。方法：我们回顾地在国家癌症中心分析了未来的胃的癌症数据库，从 2000 年 12 月的朝鲜到 2004 年 12 月。有没有同步癌症的病人的同步癌症和那些的病人的 clinicopathological... 详细信息

瞄准：识别病人与一在胃的癌症病人之中有同步癌症高风险。方法：我们回顾地在国家癌症中心分析了未来的胃的癌症数据库，从 2000 年 12 月的朝鲜到 2004 年 12 月。有没有同步癌症的病人的同步癌症和那些的病人的 clinicopathological 特征被比较。Multivariate 分析被执行在胃的癌症病人为同步癌症的存在识别风险因素。结果：在数据库登记的 3291 个胃的癌症病人(3.4%) 中的 111 个有同步癌症。在这 111 个病人之中， 109 有单个同步癌症， 2 个病人有二同步癌症。同步癌症的最普通的形式是颜色表面的癌症(42 个病人， 37.2%) 由肺癌症列在后面(21 个病人， 18.6%) 。Multivariate 分析表明有区分的早胃的癌症的老病人有同步癌症的更高的可能性。结论：在胃的癌症病人的同步癌症不是很少发生的。医生应该试着在胃的癌症病人发现同步癌症，在特别与区分的早胃的癌症老。

关键词：胃癌病理机制结肠癌直肠癌同步机制

The association between C-reactive protein to albumin ratio and 6-month neurological outcome in patients with in-hospital cardiac arrest

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2024年第3期15卷 223-228页

作者： Ji Ho lee Dong Hun lee Byung Kook lee seok Jin Ryu Department of Emergency Medicine Chonnam National University HospitalGwangju 61469Republic of Korea Department of Emergency Medicine Chonnam National University Medical SchoolGwangju 61469Republic of Korea

The global incidence rates of in-hospital cardiac arrest(IHCA)range from1.2 to 9.0 per1,000 hospitalized patients,as per the National Cardiac Arrest Database.[1] While IHCAs tend to exhibit superior 30-day survival rates relative to out-of-hospital cardiac arrests (OHCA) due to situational advantages,such as immediate access to medical personnel and treatments.

关键词： patients cardiac IHC

Extraction of intersecting palm-vein and palmprint features for cancellable identity verification

在线全文

学校读者我要写书评

暂无评论

CAAI Transactions on Intelligence Technology 2024年第1期9卷 69-86页

作者： Jaekwon lee Beom-seok Oh Kar-Ann Toh School of Electrical and Electronic Engineering Yonsei UniversitySeoulRepublic of Korea Department of Applied Artificial Intelligence Seoul National University of Science and TechnologySeoulRepublic of Korea

A novel method based on the cross-modality intersecting features of the palm-vein and the palmprint is proposed for identity verification.Capitalising on the unique geometrical relationship between the two biometric modalities,the cross-modality intersecting points provides a stable set of features for identity verification.To facilitate flexibility in template changes,a template transformation is proposed.While maintaining non-invertibility,the template transformation allows transformation sizes beyond that offered by the con-ventional means.Extensive experiments using three public palm databases are conducted to verify the effectiveness the proposed system for identity recognition.

关键词： biometrics hand vein recognition hand-based biometrics multi-biometrics palmprint recognition

Intelligent structured nanocomposite adhesive for bioelectronics and soft robots

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第2期17卷 534-549页

作者： Yeon Soo lee Min-seok Kim Da Wan Kim Changhyun Pang School of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Mechanical Metrology Group Korea Research Institute of Standards and ScienceDaejeon 34113Republic of Korea Department of Electronic Engineering Korea National University of TransportationChungbuk 27469Republic of Korea Samsung Advanced Institute for Health Sciences and Technology Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea

The remarkable functionality of biological systems in detecting and adapting to various environmental conditions has inspired the design of the latest electronics and robots with advanced features.This review focuses on intelligent bio-inspired strategies for developing soft bioelectronics and robotics that can accommodate nanocomposite adhesives and integrate them into biological surfaces.The underlying principles of the material and structural design of nanocomposite adhesives were investigated for practical applications with excellent functionalities,such as soft skin-attachable health care sensors,highly stretchable adhesive electrodes,switchable adhesion,and untethered soft robotics.In addition,we have discussed recent progress in the development of effective fabrication methods for micro/nanostructures for integration into devices,presenting the current challenges and prospects.

关键词： biomimetics bio-adhesive switchable adhesion bioelectronics nanocomposite soft robotics