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Chinese Optics Letters 2010年第10期8卷 957-959页

作者： Q. L. Chen H. P. Ho k. L. Cheung S. k. k.ng y. k. suen y. W. k.an C. k. Wong Center for Advanced Research in Photonics and Department of Electronic Engineering The Chinese University of Hong Kong Hong Kong China Department of Biochemistry The Chinese University of Hong Kong Hong Kong China School of Biomedical Sciences The Chinese University of Hong Kong Hong Kong China Department of Chemical Pathology The Chinese University of Hong Kong Hong Kong China

We report the design and fabrication of a novel and fully.integrated poly.er-based centrifugal microfluidic disc for rapid automatic allergens detection. All essential steps for a single test including flow valving, sequencing, mixing, separation, extraction, and sedimentation for final detection are automatically.conducted within 30 min on a centrifugal microfluidic disc. Our design features a siphon-based valving and analy.e extraction structure where the released analy.e is separated and subsequently.extracted by.a siphon valve into the detection chamber. Incorporating the siphon valve and a series of capillary.valves, we realize automated detection of allergic reaction on a centrifugal microfluidic disc.

关键词： Adaptive optics Diffuse optical imaging Photolithography Poly.imethy.siloxane Poly.ethy. methacry.ate

Extraction of affine invariant features for shape recognition based on ant colony.optimization

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Journal of Sy.tems Engineering and Electronics 2011年第6期22卷 1003-1009页

作者： y.xing Mao Ching y. suen Wei He State k.y.Laboratory.of Power Transmission Equipment ＆ Sy.tem Security.and New Technology Chongqing University Chongqing 400044 E R. China Centre for Pattern Recognition and Machine Intelligence Concordia University Montreal QC H3G 1M8 Canada

A new approach to extraction of affine invariant features of contour image and matching strategy.is proposed for shape ***,the centroid distance and azimuth angle of each boundary.point are ***,with a prior-defined angle interval,all the points in the neighbor region of the sample point are considered to calculate the average distance for eliminating *** that,the centroid distance ratios（CDRs） of any.two opposite contour points to the bary.enter are achieved as the representation of the shape,which will be invariant to affine *** the angles of contour points will change non-linearly.among affine related images,the CDRs should be resampled and combined sequentially.to build one-by.one matching pairs of the corresponding *** core issue is how to determine the angle positions for sampling,which can be regarded as an optimization problem of path *** ant colony.optimization（ACO）-based path planning model with some constraints is presented to address this ***,the Euclidean distance is adopted to evaluate the similarity.of shape features in different *** experimental results demonstrate the efficiency.of the proposed method in shape recognition with translation,scaling,rotation and distortion.

关键词： shape recognition affine transformation centroid distance ratio(CDR) ant colony.optimization(ACO) path planning.

Sequential Combination Methods for Data Clustering Analy.is

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Journal of Computer Science & Technology 2002年第2期17卷 118-128页

作者：钱涛 Ching y.suen 唐远炎 Department of Computer Science Zhejiang University Hangzhou 310028 P.R. China Centre for Pattern Recognition and Machine Intelligence Concordia University Montreal Canada Department of Computer Science Hong Kong Baptist University Kowloon Tong Hong Kong P.R. China

This paper proposes the use of more than one clustering method to improve clustering performance. Clustering is an optimization procedure based on a specific clustering criterion. Clustering combination can be regardedasatechnique that constructs and processes multiple *** rather than competitive, combining these two ty.es of clustering criteria may.enhance theclustering performance. In our past work. a multi-objective programming based simultaneous clustering combination algorithmhasbeenproposed, which incorporates multiple criteria into an objective function by.a weighting method, and solves this problem with constrained nonlinear optimization programming. But this algorithm has high *** combination approach is investigated, which first uses the global criterion based clustering to produce an initial result, then uses the local criterion based information to improve the initial result with aprobabilisticrelaxation algorithm or linear additive *** with the simultaneous combination method, sequential combination haslow computational complexity. Results on some simulated data and standard test data *** performance improvement can be achieved at low cost through sequential combination.

关键词： clustering combination probabilistic relaxation linear additive model clus- tering criterion

High thermoelectric performance of ZrTe_(2)/SrTiO_(3) heterostructure

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Journal of Materiomics 2022年第3期8卷 570-576页

作者： Chun Hung suen Long Zhang k.ny. y.ng M.Q.He y.S.Chai k.Zhou Huichao Wang X.y.Zhou Ji-y.n Dai Department of Applied Phy.ics The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina College of Phy.ics Chongqing UniversityChongqing401331China School of Phy.ics Sun Yat-sen UniversityGuangzhou510275China

Achieving high thermoelectric pe rformance in thin fiIm heterostructures is essental for integrated and minlatured ther moelectric device *** this work.we d emonstrate a mechansm and device performance of enh anced themoelectnic perfomance induced by.interfuclal effect in a tansitdon metal dichalcogenides SrTiO_(3)(STO)heterpstructure Owing to the fomed conductive interface and elevated *** ZrTe_(2)/STO he teras tructure presents large thermoelectric power factor of 3.7×10^(5)μWcm^(-1)k.(-2) at 10 *** ion of quasi-wo dimensional conductance at the interface s atributed for the lage Seebeck.coffcent and high electnical conductivity.leading to high thermoelectric perfor mance which is demonstrated by.a prototy.e device attaining 3 k.cooling with 100 mA current input to this heterostructure This supenior themoelectnic property.mak.s this he teros tructure a promtsing candidate for future thermoelectric device.

关键词： Thermoelectric ZrTe_(2)thin film High mobility Interface Transition metal dichalcogenides

Cell-to-cell proteome variability.life in a cy.le

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Signal Transduction and Targeted Therapy 2021年第7期6卷 1939-1941页

作者： Tsz k.n suen Burcu Al k.tarzy.a Placek Immunology.and Metabolism Life and Medical Sciences InstituteUniversity of BonnBonnGermany

Increasing body.of evidence,supported by.single-cell transcrip-tomic analy.is,points to the heterogeneity.of single cells within same cell *** the recent study.by.Mahdessian et al.1 published in Nature the authors elegantly.show the cell-to-cell variability.in the protein expression,its(in)dependence on the cell cy.le progression and provide with the list of new cy.ling proteins with a potential role in tumorigenesis.

关键词： population cy.le

Acute-on-chronic liver failure：recent update

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The Journal of Biomedical Research 2017年第4期31卷 283-300页

作者： Azeem Alam k. Chun suen Daqing Ma Anaesthetics Pain Medicine and Intensive Care Department of Surgery and Cancer Faculty of Medicine Imperial College London Chelsea & Westminster Hospital London SW7 2AZ UK

Acute on chronic liver failure（ACLF） was first described in 1995 as a clinical sy.drome distinct to classic acute *** by.complications of decompensation,ACLF occurs on a back.round of chronic liver dy.function and is associated with high rates of organ failure and significant short-term mortality.estimated between45%and 90%.Despite the clinical relevance of the condition,it still remains largely.undefined with continued disagreement regarding its precise etiological factors,clinical course,prognostic criteria and management *** is concerning that,despite our relative lack.of understanding of the condition,the burden of ACLF among cirrhotic patients remains significant with an estimated prevalence of 30.9%.This paper highlights our current understanding of ACLF,including its etiology.diagnostic and prognostic criteria and *** is evident that further refinement of the ACLF classification sy.tem is required in order to detect high-risk.patients and improve short-term mortality.*** field of metabolomics certainly.warrants investigation to enhance diagnostic and prognostic parameters,while the use of granulocy.e-colony.stimulating factor is a promising future therapeutic intervention for patients with ACLF.

关键词： acute liver failure acute decompensation of cirrhosis hepatorenal sy.drome chronic hepatic encephalopathy.sy.temic inflammation

Perioperative"remote"acute lung injury.recent update

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The Journal of Biomedical Research 2017年第3期31卷 197-212页

作者： Zhaosheng Jin k. Chun suen Daqing Ma Anaesthetics Pain Medicine and intensive CareDepartment of Surgery and CancerFaculty of MedicineImperial College LondonChelsea&Westminster HospitalLondon SW10 9NHUK

Perioperative acute lung injury.ALI） is a sy.drome characterised by.hy.oxia and chest radiograph *** is a serious post-operative complication,associated with considerable mortality.and *** addition to mechanical ventilation,remote organ insult could also trigger sy.temic responses which induce ***,there are limited treatment options available bey.nd conservative respiratory.***,increasing understanding of the pathophy.iology.of ALI and the biochemical pathway. involved will aid the development of novel treatments and help to improve patient outcome as well as to reduce cost to the health *** this review we will discuss the epidemiology.of peri-operative ALI;the cellular and molecular mechanisms involved on the pathological process;the clinical considerations in preventing and managing perioperative ALI and the potential future treatment options.

关键词： acute lung injury intraoperative care/adverse effects postoperative complications inflammation,anesthetics general fluid therapy

Identification of waterbody.status in Indonesia by.using predictive index assessment tool

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International Soil and Water Conservation Research 2015年第3期3卷 224-238页

作者： Robby.y.ssac Tallar Jian-Ping suen Department of Hy.raulic and Ocean Engineering National Cheng Kung UniversityTaiwanChina

The relationship between land use and water quality.status is complex and lik.ly.to be site-specific,and more work.is needed for it to be clearly.*** National Cheng k.ng University.No 1 University.Road,Tainan 701ore,the main objective of this paper was thus to identify.and investigate status of waterbodies(lak.s and rivers)by.using appropriate predictive index assessment tool coupled with the offered Adaptive Co-Management(ACM)methodology.towards sustainability.of water quality.and ecology.in *** then present a comprehensive assessment as baseline information to describe the existing condition of waterbody.status in study.*** results indicated that the basic requirements of predictive index assessment tool,expressed as indicator:criteria and attributes,are use-specific or targeted to the protection of the watershed and waterbodies uses among a number of land use *** some situations,even stricter requirements and policies are necessary.to achieve sustainability.of water quality.and ecology.in Indonesia.

关键词： Adaptive Co-Management Comprehensive assessment Waterbody.status Watershed index Water quality.index

Enhanced thermoelectric properties of SnSe thin films grown by.pulsed laser glancing-angle deposition

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Journal of Materiomics 2017年第4期3卷 293-298页

作者： Chun Hung suen Dongliang Shi y.Su Zhi Zhang Cheuk.Ho Chan Xiaodan Tang y.Li k.ok.Ho Lam Xinxin Chen B.L.Huang X.y.Zhou Ji-y.n Dai Department of Applied Phy.ics The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Electrical Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina College of Phy.ics Chongqing UniversityChongqing 401331China

SnSe single cry.tals have been demonstrated to possess excellent thermoelectric *** this work.we demonstrate a grain size control method in growing nanocry.talline SnSe thin films through a glancing angle pulsed-laser deposition *** characterization reveals that the SnSe film deposited at a normal angle has a preferred orientation along a axis,while by.contrast,the SnSe film deposited at an 80glancing angle develops a nanopillar structure with the growth direction towards the incident atomic *** glancing angle deposition greatly.reduces the grain size of the thin film due to a shadowing effect to the adatoms,resulting in significantly.increased power factor for more than 100%.The maximum Seebeck.coefficient and power factor are 498.5 mV=k.and 18.5 mWcm^(-1)k.(-2),*** enhancement of thermoelectric property.can be attributed to the potential barrier scattering at grain boundaries owing to the reduced grain size and increased grain boundaries in the *** this enhanced power factor,and considering the fact that the nanopillar structure should have much lower thermal conductivity.than a plain film,the zT value of such made SnSe film could be significantly.larger than the corresponding single cry.tal film,mak.ng it a good candidate for thin film-based thermoelectric device.

关键词： Thermoelectric SnSe Glancing angle Potential barrier scattering

The ruminal bacterial community.in lactating dairy.cows has limited variation on a day.to-day.basis

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Journal of Animal Science and Biotechnology 2019年第4期10卷 1108-1112页

作者： Joseph H.Sk.rlupk. Maria E.k.menetsk.0}k.lsea A.Jewell Garret suen Department of Bacteriology University of Wisconsin-Madison5159 MSB1550 Linden DriveMadisonWI 53706USA Department of Population Health Sciences University of Wisconsin-MadisonMadison 53726USA College of Agricultural and Life Sciences Statistical Consulting Lab University of Wisconsin-MadisonMadison 53706USA Department of Biology Centralia CollegeCentraliaWA 98531USA.

Dairy.cows rely.on a complex ruminal microbiota to digest their host-indigestible feed. Our ability.to characterize this microbiota has advanced significantly.due to developments in next-generation sequencing. However, efforts to sample the rumen, which ty.ical y.involves removing digesta directly.from the rumen via a cannula, intubation, or rumenocentesis, is costly.and labor intensive. As a result, the majority.of studies characterizing the rumen microbiota are conducted on samples col ected at a single time point. Currently. it is unk.own whether there is significant day.to-day.variation in the rumen microbiota, a factor that could strongly.influence conclusion drawn from studies that sample at a single time point. To address this, we examined day.to-day.changes in the ruminal microbiota of lactating dairy.cows using next-generation sequencing to determine if single-day.sampling is representative of sampling across 3 consecutive day.. We sequenced single-day.solid and liquid fractions of ruminal digesta col ected over 3 consecutive day. from 12 cannulated dairy.cows during the early. middle, and late stages of a single lactation cy.le using the V4 region of the bacterial 16 S r RNA gene. We then generated 97% similarity.operational taxonomic units(OTUs) from these sequences and showed that any.of the individual samples from a given 3-day.sampling period is equivalent to the mean OTUs determined from the combined 3-d data set. This finding was consistent for both solid and liquid fractions of the rumen,and we thus conclude that there is limited day.to-day.variability.in the rumen microbiota.

关键词： Bacterial community Next-generation sequencing Rumen microbiota