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1D-2D nanohybrid-based textile strain sensor to boost multiscale deformative motion sensing performance

Nano Research 2022年第9期15卷 8398-8409页

作者： Xiaoting Li Keng Huat Koh Jiaqi Xue Chun Ho So Na Xiao chung tin King Wai Chiu Lai Department of Biomedical Engineering City University of Hong KongKowloon TongHong KongChina

The development of strain sensors with both superior sensitivity(gauge factor(GF)>100)and broad strain-sensing range(>50%strain)is still a grand ***,which demonstrate significant structural deformation under microscale motion,are required to offer high *** connection of materials upon large-scale motion is demanded to widen strainsensing ***,it is hard to achieve both features ***,we design a crepe roll structure-inspired textile yarn-based strain sensor with one-dimensional(1D)-two-dimensional(2D)nanohybrid strain-sensing sheath,which possesses superior *** ultrastretchable strain sensor exhibits a wide and stable strain-sensing range from microscale to large-scale(0.01%–125%),and superior sensitivity(GF of 139.6 and 198.8 at 0.01%and 125%,respectively)*** strain sensor is structurally constructed by a superelastic 1D-structured core elastomer polyurethane yarn(PUY),a novel high conductive crepe roll-structured(CRS)1D-2D nanohybrid multilayer sheath which assembled by 1D nanomaterials silver nanowires(AgNWs)working as bridges to connect adjacent layers and 2D nanomaterials graphene nanoplates(GNPs)offering brittle lamellar structure,and a thin polydopamine(PDA)wrapping layer providing protection in exterior *** the stretching/deformation process,microcracks originate and propagate in the GNPs lamellar structure enable resistance to change significantly,while AgNWs bridge adjacent GNPs to accommodate applied stress partially and boost *** 1D crepe roll structure-inspired strain sensor demonstrates multifunctionality in multiscale deformative motion detection,such as respiratory motions of Sprague–Dawleyw rat,flexible digital display,and proprioception of multi-joint finger bending and antagonistic flexion/extension motions of its flexible continuum body.

关键词： crepe roll-inspired multifunctional yarn strain sensor one-dimensional silver nanowires/two-dimensional graphene nanoplates(1D AgNWs/2D GNPs)nanohybrid multi-scale motion detection e-textiles tactile sensing proprioception of the endoscopic robot

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Enhanced Fluorescence of Organic and Polymeric compounds with Quinoline Ring

Enhanced Fluorescence of Organic and Polymeric compounds wit...

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2010年两岸三地高分子液晶态与超分子有序结构学术研讨会（暨第十一次全国高分子液晶态与超分子有序结构学术论文报告会）

作者： Jin-Long Hong,chung-tin Lai Department of Materials and Optoelectrical Science,National Sun Yat-Sen University, Kaohsiung 80424

Effect of aggregation-induced emissions(AIE) of several organic and polymeric materials containing quinoline ring were characterized with the purpose to evaluate its relationship with the extent of restricted intramolecular rotation(RIR).Three methodologies were used to generate RIR,which directly leads to enhanced fluorescence:1) Internally hindering the intamolecular rotation by bulky substituent: Bulky quinoline substituent was used as one of the rotors linked to the central stator in

关键词： Aggregation-induced emission restricted intramolecular rotation quinoline tetraphenylthiophene block copolymer micelle

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Steroid for chronic subdural hematoma? A prospective phase IIB pilot randomized controlled trial on the use of dexamethasone with surgical drainage for the reduction of recurrence with reoperation

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Chinese Neurosurgical Journal 2015年第1期1卷 -页

作者： David Yuen chung Chan tin Fung David Sun Wai Sang Poon Division of Neurosurgery Department of Surgery Prince of Wales HospitalThe Chinese University of Hong Kong 30-32 Ngan Shing Street Shatin NTHong Kong

Background: Chronic subdural hematoma is a common neurosurgical condition especially in the aging *** hole for drainage is an effective treatment, yet recurrence is reported at 8 to 22 ％ worldwide, and 1-year mortality rates could be as high as 32 ％.Our previous study on the use of dexamethasone as a primary nonsurgical treatment showed good response in selected group of *** study aims to assess the efficacy of dexamethasone with surgical drainage in the reduction of recurrence requiring ***: From October 2000 to September 2006, patients with chronic subdural hematoma admitted to the Prince of Wales Hospital, The Chinese University of Hong Kong, were randomized to surgical drainage with steroid versus surgical drainage *** primary endpoint was symptomatic recurrence requiring ***: Two hundred forty-eight patients were recruited and consented for the randomization during the study *** hundred twenty-two received both surgery and steroid (the intervention arm) while 126 received surgery only (the control arm).The recurrence rate requiring reoperation was 6.6 ％ (8/122) and 13.5 ％ (17/126),respectively (p =0.109).There was no significant difference in complications such as chest infection (p =0.201) or wound infection (p =0.987).Favorable outcome (Glasgow Outcome Score 4-5) was 104/122 (85.2 ％) in the intervention group versus 105/126 (83.3 ％) in the control group, respectively (p =0.811).Based on the recurrence rate in our study, we generate a potential sample size of at least 594 patients (type Ⅰ error =5 ％, power =80 ％,two-sided test) to detect a significant ***, brief summary, and potential implications: In this prospective pilot phase IIB randomized controlled study, steroid with surgical drainage had a lower recurrence with reoperation though statistically *** was safe with no significant difference in complication *** pilot study generates a potential sample s

关键词： Chronic subdural hematoma Steroid Burr hole for drainage

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Virtual reality based multiple life skill training for intellectual disability:A multicenter randomized controlled trial

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Engineered Regeneration 2022年第2期3卷 121-130页

作者： James chung-Wai Cheung Ming Ni Andy Yiu-Chau Tam Tim tin-Chun Chan Alyssa Ka-Yan Cheung Ocean Yu-Hong Tsang Chi-Bun Yip Wing-Kai Lam Duo Wai-Chi Wong Department of Biomedical Engineering Faculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China Research Institute for Smart Ageing The Hong Kong Polytechnic UniversityHong Kong 999077China Jockey Club Smart Ageing Hub Department of Biomedical EngineeringFaculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China Department of Orthopaedics Pudong New Area People’s Hospital Affiliated to Shanghai Jiaotong UniversityShanghai 201299China Social Service Department Yan Chai HospitalHong Kong 999077China C2 Innovations and Research Limited Hong Kong 999077China Department of Kinesiology Shenyang Sport UniversityShenyang 110102China Sports Information and External Affairs Centre Hong Kong Sports InstituteHong Kong 999077China

Life skill-based training is essential for intellectual disabled individuals to regain autonomy and social *** reality(VR)could deliver a nascent application that is more engaging and *** objective of this study was to evaluate the training effects of the VR-based multiple life skill training program on life skill perfor-mance,self-efficacy,memory,cognitive and behavioral functions via a multicenter randomized controlled trial.A total of 145 intellectual disabled participants were recruited for a randomized controlled trial with three in-tervention arms:VR(n=42);traditional(n=53);and control(n=50).The life skill tasks for the interventions included 1)grocery shopping,2)cooking,and 3)kitchen *** measures were performance scores for the three tasks,self-efficacy scale,digit span score,and Frontal Assessment Battery score,graded by blinded ***-after effects of each group were evaluated using separated Wilcoxon Signed-rank *** sig-nificantly improved cooking,cleaning performance,and memory span,while traditional training significantly improved shopping,cooking,and cleaning *** generalized estimating equation evaluated effects between groups adjusted for age,gender and intelligence quotient(IQ).VR had significantly larger improvement effects in cooking and cleaning than the control group and memory span compared to traditional training and controls *** appeared to be a significant confounder on the training *** work may consider developing artificial intelligence to customize programs depending on IQ level.

关键词： Mental retardation Intellectual development X-reality Immersive rehabilitation Metaverse

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Association between smoking,pancreatic insulin secretion and insulin resistance in Chinese subjects with or without glucose intolerance

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Chinese Medical Journal 2007年第24期120卷 2233-2237页

作者： KO Gary tin-Choi TONG Peter Chun-Yip SO Wing-Yee COCKRAM Clive S. CHAN Juliana chung-Ngor Hong Kong Institute of Diabetes and Obesity Hong Kong China Department of Medicine and Therapeutics Chinese University of Hong Kong Prince of Wales Hospital Shatin N.T. Hong KongChina

Background There are studies suggesting smoking may increase the risk of type 2 diabetes. Effects of smoking on insulin secretion and insulin resistance （IR） are, however, controversial. Methods This is a cross-sectional study. Since there were very few smokers among Hong Kong Chinese women, only men （n=-1068） were analyzed in this report. Fasting and 2-hour plasma glucose and insulin were measured. Insulinogenic index as well as beta-cell function and IR based on homeostatic model assessment （HOMA） by computer model （HOMA Calculator v2.2） were calculated. Results Of the 1068 men, 147 had newly diagnosed diabetes, 131 newly diagnosed impaired glucose tolerance （IGT） and 790 were non-diabetic normal controls. Smokers had similar fasting and 2-hour insulin levels, insulinogenic index and HOMA derived beta-cell function as compared to non-smokers in the groups with diabetes, IGT or normal oral glucose tolerance test （OGTT）. IR was also similar between smokers, ex-smokers and non-smokers in those with normal OGTT. In men with IGT or diabetes, after adjustment for age and body mass index, smokers were more insulin resistant as compared to non-smokers （IR, IGT： 1.59±1.07 vs 1.03±0.54, P〈0.05; diabetes： 1.96±1.36 vs 1.06±0.45, P〈0.01）. With Logistic regression analysis, comparing smokers and non-smokers, IR was independently associated with smoking （odds ratio （95% C/）, IGT： 2.23 （1.05, 4.71）; diabetes： 3.92 （1.22, 12.58））. None of the other insulin parameters enter into the model among those with normal OGTT or comparing ex-smokers and non-smoker or smokers and ex-smokers. Conclusions In Chinese men, smoking did not show any direct association with insulin levels and pancreatic insulin secretion. Smoking men with IGT or diabetes appeared more insulin resistant than their non-smoking counterparts.

关键词： smoking diabetes mellitus insulin Chinese

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A Network Signal Timing Design Bilevel Optimization Model with Traveler Trip-Chain Route Choice Behavior Consideration

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Journal of Traffic and Transportation Engineering 2017年第4期5卷 203-216页

作者： chung-Yung Wang Kuo-Chi Yen Shou-Ren Hu Chih-Peng Chu Ya-tin Jhuang Department of Logistics Management National Defense University Taipei City 112 Taiwan R.O.C. Department of Transportation and Communication Management Science National Cheng Kung University Tainan City 701Taiwan R. O. C. " Department of Business Administration National Dong Hwa University Hualien City 9 74 Taiwan R.O.C.

This study proposed a bilevel optimization model for the network signal timing design problem by considering the linkflows reflected by the trip-chain route choice behaviors of road users. The bilevel programming model is formulated based on theinteractions between signal timing control and trip-chain behavior, and a solution algorithm by combining variational inequalitysensitivity analysis, the generalized inverse matrix method, and a gradient projection approach revised for trip-chain user equilibriumis developed for the transportation design problem. The performance of the developed model framework was verified throughnumerical analysis under different test scenarios.

关键词： Signal timing design, bilevel programming model, trip-chain user equilibrium.

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Initial Experience on Robot-assisted Radical Prostatectomy

Initial Experience on Robot-assisted Radical Prostatectomy

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第十七届全国泌尿外科学术会议

作者： To Kim chung Ma Wai Kit Chu tin Yu Liu Pak Ling Chan Wai Hee Yiu Ming Kwong Division of Urology Department of SurgeryPrincess Margaret Hospital

Purpose To report our initial experience on robot-assisted radical prostatectomy. Materials and methods Da Vinci S Surgical System was installed in our center in June 2009.46 consecutive patients with prostate cancer who

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Silver nanowires with semiconducting ligands for low- temperature transparent conductors

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Nano Research 2016年第2期9卷 392-400页

作者： Brion Bob Ariella Machness Tze-Bin Song Huanping Zhou Choong-Heui chung Yang Yang Department of Materials Science and Engineering and California NanoSystems Institute University of California Los Angeles LosAngeles CA 90025 USA Department of Materials Science and Engineering Hanbat National University Daejeon 305-719 Republic of Korea

Metal nanowire networks represent a promising candidate for the rapid fabrication of transparent electrodes with high transmission and low sheet-resistance values at very low deposition temperatures. A commonly encountered challenge in the formation of conductive nanowire electrodes is establishing high-quality electronic contact between nanowires to facilitate long-range current transport through the network. A new system involving nanowire ligand removal and replacement with a semiconducting sol-gel tin oxide matrix has enabled the fabrication of high-performance transparent electrodes at dramatically reduced temperatures with minimal need for post-deposition treatment.

关键词： silver nanowires sol-gel transparent electrodes nanocomposites

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Dietary analysis of the House Swift(Apus nipalensis)in Hong Kong using prey DNA in faecal samples

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Avian Research 2021年第1期12卷 86-101页

作者： Chun ting chung Hok Sze Wong Man Long Kwok Qi Meng King Ming Chan School of Life Sciences The Chinese University of Hong KongSha Tin 999077N.TChina Swift and Swallow Research Group The Hong Kong Bird Watching Society7CV Ga Building532 Castle Peak RoadLai Chi KokKowloonHong Kong 999077China

Background:To understand the dietary composition of the highly aerial swift(Apodidae),ecologists conventionally depend on the morphological identification of prey items from food boluses or stomach contents,but these techniques are often invasive,require expertise in identification,and often cannot produce accurate identifications at the species ***:DNA barcoding was used to analyse the dietary composition of House Swifts(Apus nipalensis)in Hong Kong,*** samples from five different colonial nest sites were collected between 2019 and *** used universal primers to amplify a region of the cytochrome C oxidase gene from prey DNA in the faecal samples for identification ***:Ten different orders and 44 families from three different classes of Arthropoda were identified in the collected faecal ***,Hemiptera and Diptera were the most prevalent groups of prey found in the *** in the dietary composition of House Swifts during the breeding(April to September)and nonbreeding(October to March)season were also ***,particularly ants(Formicidae),were predominant in the diet during the breeding season,whereas Diptera and Hemiptera were predominant during the non-breeding ***:The prey groups identified in this study were similar to those identified in a previous study of the diet of House Swift,which also suggests a possible role of House Swifts in reducing the numbers of local insect *** study demonstrates the usefulness of applying molecular tools for the dietary analysis of aerial *** local forested areas may be crucial for the maintenance of House Swift population.

关键词： Diet DNA barcoding House swift Urbanisation threat

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Treatment of functional dyspepsia with sertraline:A double-blind randomized placebo-controlled pilot study

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World Journal of Gastroenterology 2012年第42期18卷 6127-6133页

作者： Victoria PY Tan tin K Cheung Wai M Wong Roberta Pang Benjamin CY Wong Department of Medicine University of Hong KongQueen Marry HospitalHong KongChina

AIM:To evaluate sertraline,a selective serotonin reuptake inhibitor in the treatment of patients with functional ***:Consecutive tertiary hospital patients with a clinical diagnosis of functional dyspepsia(FD) according to the Rome Ⅱ criteria with a Hong Kong dyspepsia index(HKDI) of greater than 16 were *** commenced enrolment prior to the inception of the Rome Ⅲ criteria for functional *** patients were ethnic Chinese,had a normal upper endoscopy and were Helicobacter pylori negative prior to *** patients were randomized to receive sertraline 50 mg or placebo daily for 8 *** symptom scores,quality of life,hospital anxiety and depression(HAD) scale and global symptom relief were evaluated before,during and after *** effects were monitored during and after ***:A total of 193 patients were randomized in the intention to treat(ITT),and 150 patients were included in the per protocol(PP) *** both the ITT and PP,there was no difference in the primary outcome of global dyspepsia symptoms between the sertraline and placebo groups at week *** the ITT analysis,98 and 95 patients were randomized to the sertraline and placebo groups respectively.A total of 43 patients withdrew from the study(22.3%) by week 8,with 23 of the 24 drop-outs in the sertraline group occurring prior to week 4(95.8%).In contrast,in the placebo arm,11 of 19 patients dropped out by week 4(57.9%).Utilizing the last response carried forward to account for the drop-outs,there were no differences between the sertraline and placebo groups at baseline in terms of the HKDI,HKDI 26.08 ± 6.19 vs 26.70 ± 5.89,P = 0.433;and at week 8,HKDI 22.41 ± 6.36 vs 23.25 ± 7.30,P = 0.352 *** the PP analysis,74 and 76 patients were randomized to the sertraline and placebo groups *** baseline,there were no statistically significant differences between the sertraline and placebo groups,HKDI 25.83 ± 6.313 vs 27.19 ±

关键词： Dyspepsia Chinese Gastrointestinal diseases Drug therapy Sertraline Selective serotonin reuptake inhibitors

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