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Automatic Discontinuity Classification of Wind-turbine Blades Using A-scan-based Convolutional Neural Network

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journal of Modern Power Systems and Clean Energy 2021年第1期9卷 210-218页

作者： jiyeon Choung Sun lim Seung Hwan lim Su Chung Chi Mun Ho Nam Korea Electronics Technology Institute 401-402Bucheon Technopark655Pyeongcheon-roWonmi-guBucheon-siGyeonggi-do 14502Korea Sam Yong Inspection Engineering Co.Ltd.

Recent development trends in wind power generation have increased the importance of the safe operation of wind-turbine blades(WTBs). To realize this objective, it is essential to inspect WTBs for any defects before they are placed into operation. However, conventional methods of fault inspection in WTBs can be rather difficult to implement, since complex curvatures that characterize the WTB structures must ensure accurate and reliable inspection. Moreover, it is considered useful if inspection results can be objectively and consistently classified and analyzed by an automated system and not by the subjective judgment of an inspector. To address this concern,the construction of a pressure-and shape-adaptive phased-array ultrasonic testing platform, which is controlled by a nanoengine operation system to inspect WTBs for internal defects, has been presented in this paper. An automatic classifier has been designed to detect discontinuities in WTBs by using an A-scanimaging-based convolutional neural network(CNN). The proposed CNN classifier design demonstrates a classification accuracy of nearly 99%. Results of the study demonstrate that the proposed CNN classifier is capable of automatically classifying the discontinuities of WTB with high accuracy, all of which could be considered as defect candidates.

关键词： Wind-turbine blade(WTB) blade inspection platform convolutional neural network(CNN) discontinuity phased-array ultrasonic testing(PAUT) A-scan

Investigating seed mineral composition in Korean landrace maize(Zea mays L.) and its kernel texture specificity

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journal of Integrative Agriculture 2019年第9期18卷 1996-2005页

作者： Sooyeon lim Gibum Yi Department of Plant Science Plant Genomics and Breeding Institute/Research Institute of Agriculture and Life Sciences Seoul National University

Mineral malnutrition affects billions of people all over the world and biofortification of staple crops provides a potential way to alleviate dietary mineral *** example,nutritional quality is an important breeding target for fresh waxy maize(Zea mays L.),which is widely consumed in Asian *** improvement of mineral composition will require comprehensive profiling of the mineral composition of maize varieties and an understanding of the capacity for maize grains to accumulate ***,using inductively coupled plasma absorption emission spectrometry,we quantified 12 minerals from the seeds of 47 maize varieties,including 25 Korean *** also compared the mineral contents in varieties with different seed starch profiles:waxy maize(which contains 100%amylopectin),dent maize(roughly 75%amylopectin and 25%amylose),and flint maize(similar to dent maize).The amounts of potassium,phosphorus,and sulfur were correlated with seed texture,waxy maize having higher amounts of phosphorus and potassium than dent maize and lower amounts of sulfur than flint maize or dent *** addition,a positive relationship was detected between the amount of phosphorus and that of potassium,magnesium,and *** results provide information on maize seed mineral composition and indicate that it could be affected by starch ***,the landraces that exhibit high mineral contents could be used as germplasm materials for breeding programs aimed at producing biofortified maize cultivars.

关键词： micronutrient macronutrient biofortification maize aleurone endosperm

Molecular mechanisms regulating expression and function of transcription regulator “inhibitor of differentiation 3”

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Acta Pharmacologica Sinica 2005年第12期26卷 1409-1420页

作者： Robert Wai-sui lim 65212 USA Department of Medical Pharmacology and Physiology University of Missouri-Columbia

The transcription factor antagonist inhibitor of differentiation 3(Id3)has beenimplicated in many diverse developmental,physiological and *** expression and function is subjected to many levels of *** review summarizes the current understanding of these mecha-nisms and describes how they might be related to the diverse functions that havebeen attributed to the Id3 *** understanding of these mechanismsshould provide insights towards the development of therapeutic approaches tovarious diseases,including cancer and atherogenesis.

关键词： gene expression regulation inhibitor of differentiation 3 protein transcription factors neoplasm

Towards Interference-Aware ZigBee Transmissions in Heterogeneous Wireless Networks

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Computers, Materials & Continua 2021年第1期66卷 751-765页

作者： Sangsoon lim Sanghyun Seo Department of Computer Engineering Sungkyul UniversityAnyangSouth Korea School of Computer Art Chung-ang UniversityAnseongSouth Korea

Cross-technology interference(CTI)from diverse wireless networks such as ZigBee,Bluetooth,and Wi-Fi has become a severe problem in the 2.4 GHz Industrial Scientific and Medical(ISM)***,low power and lossy networks are vulnerable to the signal interferences from other aggressive wireless networks when they perform low power operations to conserve the energy *** paper presents CoSense,which accurately detects ZigBee signals with a reliable signal correlation scheme in the presence of the *** key concept of CoSense is to reduce false wake-ups of low power listening(LPL)by identifying the pre-defined ZigBee *** scheme is robust in the coexistence environment of diverse wireless technologies since the signal correlation works well in bad wireless channel *** achieves standard compliance and transparency without any hardware and firmware *** have implemented CoSense on the Universal Software Radio Peripheral(USRP)platform to verify its *** experimental exploration reveals that CoSense significantly reduces the false-positive and false-negative rate under typical setting and the additional overhead is *** results show that our scheme saves much energy by up to 63%in dynamic network interference scenarios where low-power ZigBee transmissions are overwhelmed by strong Wi-Fi signal interferences.

关键词： Heterogeneous wireless networks interference ZigBee detection energy efficiency low-power listening

Alterations of protein homeostasis in Alzheimer's disease:beyond Procrustean bed of endoplasmic reticulum stress and unfolded protein response

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Neural Regeneration Research 2024年第8期19卷 1645-1646页

作者： Dmitry lim Alexei Verkhratsky Department of Pharmaceutical Sciences Universitàdel Piemonte Orientale“Amedeo Avogadro”NovaraItaly Faculty of Biology Medicine and HealthThe University of ManchesterManchesterUK Achucarro Center for Neuroscience IKERBASQUEBasque Foundation for ScienceBilbaoSpain&Department of NeurosciencesUniversity of the Basque Country UPV/EHU and CIBERNEDLeioaSpain Department of Stem Cell Biology State Research Institute Centre for Innovative MedicineVilniusLithuania Department of Forensic Analytical Toxicology School of Forensic MedicineChina Medical UniversityShenyangLiaoning ProvinceChina

Alzheimer’s disease(AD)is a major age-related form of dementia with a number of cases exponentially growing,causing enormous social and economic impact on individuals and *** hallmarks of AD,evident in postmortem AD brains,include a massive loss of the grey matter in the neocortex,extracellular deposition of amyloid-β(Aβ)in the form of senile plaques and cerebrovascular amyloid angiopathy,and intra-neuronal accumulation of neurofibrillary tangles,formed by hyper-phosphorylated tau protein.

关键词： Alzheimer homeostasis cortex

S-＊w-Principal Ideal Domains

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Algebra Colloquium 2018年第2期25卷 217-224页

作者： Hwankoo Kim jungWook lim Department of Information Security Hoseo University Asan 31499 Republic of Korea Department of Mathematics Kyungpook National University Daegu 41566 Republic of Korea

Let D be an integral domain, ＊a star-operation on D, and S a multiplicative subset of D. We define D to be an S-＊w-principal ideal domain if for each nonzero ideal I of D, there exist an element s ∈ S and a principal ideal （c） of D such that sI （c） In this paper, we study some properties of S-＊w-principal ideal domains. Among other things, we study the local property, the Nagata type theorem, and the Cohen type theorem for S-＊w-principal ideal domains.

关键词： S-*w-principal S-*w-principal ideal domain *-countable type *w-Dedekind domain

钆喷酸增强MR肝胆管期成像在肝细胞癌诊断中的辅助作用

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国际医学放射学杂志 2010年第4期 373-373页

作者： S.S.Ahn M.j.Kim j.S.lim j.Y.Choi 李宁 Department of Radiology Research Institute of Radiological ScienceSeverance HospitalYonsei University College of MedicineShinchon-dong 134Seodaemun-guSeoul 120-752Korea

目的评价钆喷酸增强MR肝胆管期成像在肝细胞癌(HCC)诊断中的辅助作用。材料与方法该回顾性研究得到机构伦理委员会批准,无需知情同意。59例病人共84个HCC行钆喷酸增强MRI检

关键词：肝胆管 HCC 肝细胞癌 MR 辅助作用

LOCAL CREEP EVALUATION OF P92 STEEL WELDMENT BY SMALL PUNCH CREEP TEST

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Acta Mechanica Solida Sinica 2008年第4期21卷 312-317页

作者： Bumjoon Kim Byeongsoo lim School of Mechanical Engineering Sungkyunkwan UniversitySuwon 440-746Korea

The aim of this research is to evaluate the local creep damage of various microstructures such as coarse grained heat affected zone （CGHAZ）, fine grained heat affected zone （FG- HAZ）, intercritical heat affected zone （ICHAZ） known as Type IV region, weld metal, and base metal of P92（9Cr-2W） steel weldment by small punch （SP） creep test at 600~ C. Also, to determine the weakest local part of the weldment, the effect of microstructures on creep rupture behavior in the weldment of P92 steel was studied. From the experimental results, the FGHAZ and Type IV region turned out to be very weak local parts of P92 weldment. Especially, the TYPE IV region showed the greatest displacement rate and had the shortest rupture life with many creep cavities widely spreaded in most of the region.

关键词： conventional creep small punch creep heat affected zone cavity

Antidepressant effects of Radix et Caulis Acanthopanacis Santicosi extracts on rat models with depression in terms of immobile behavior

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journal of Traditional Chinese Medicine 2014年第3期34卷 317-323页

作者： Bhaktaprasad Gaire Dongwook lim Gaire Department of Pharmacology College of Pharmacy and Gachon Institute of Pharmaceutical Sciences Gachon University Incheon 406-799 Republic of Korea Functionality Evaluation Research Group Korea Food Research InstituteSeongnam463-746Republic of Korea

OBjECTIVE: To investigate the antidepressant effects of the Radix et Caulis Acanthopanacis Santicosi extracts in response to the tail suspension test(TST)and forced swim test (FST) in ***:Male Wistar rats (9-week-old) wereorally administered the Radix et Caulis Acanthopanacis Santicosi extracts(30, 100 and 300 mg/kg) daily for 14 consecutive days. Serum corticosterone level was measured by using commercially available *** c-fos immunoreactivity was analyzed using immunohistochemistry ***:The effect of Radix et Caulis Acanthopanacis Santicosi extracts on the immobility time was significantly decreased at high-dose(300 mg/kg)treated group in the TST and FST(47.7%and69.6%,P<0.05), and decreased the hypothalamic-pituitary-adrenal(HPA) axis response to the stress,as in-dicated by an attenuated corticosterone response anddecreasedc-fosimmunoreactivity in the hippocampal and hypothalamic paraventricular nucleus ***:Radix et Caulis Acanthopanacis Santicosi extracts have beneficial effects on depression behaviors and restore both altered c-fos expression and HPA ***, Radix et Caulis Acanthopanacis Santicosi extracts may be a novel agent for the treatmentof stress-related disorders.

关键词： Acanthopanax senticosus Antidepres-sive agents Stress Behavior