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Quantitative estimation of sediment erosion and accretion processes in a micro-tidal coast

International Journal of sediment Research 2014年第2期29卷 218-231页

作者： G.Udhaba DORA V.sanil KUMAR P.VINAYARAJ c.s.philip G.JOHNsON csIR-National Institute of Oceanography GoaIndia.Senior Research Fellow.Mr. csIR-National Institute of Oceanography GoaIndia.Senior Principal Scientist.Dr. csIR-National Institute of Oceanography GoaIndia.Project Assistant.Mr.

spatio-temporal cross-shore profiles and textural characteristics are the key parameters for understanding dynamics of the inter-tidal sedimentary *** study describes short-term dynamics of the inter-tidal sedimentary environment at beaches along the micro-tidal *** a correlation is estimated in cross-shore morphodynamics and textural characteristics of surface *** sedimentary environment is examined for a complete annual cycle using monthly collected cross-shore profiles and sediment *** Devbag beach(northern side) and Ravindranath Tagore beach(southern side) at the Kali river mouth,Karwar,west coast of India are characterized from extremely gentle to average slope,and broadly composed of unimodal *** sedimentary environment is significantly composed of textures having fine to medium sand,well to moderately sorted,fine to coarse skewed,and platykurtic to leptokurtic in *** the annual cycle a reversal pattern is observed between the two adjacent beaches,where a slower rate of sediment accretion is observed at Devbag beach while Ravindranath Tagore beach exhibited *** beach dynamics along with the propagation of south-west(sW) and south-west-west(sWW) waves towards the coast significantly exhibit a dominance of northward sediment transport with the existence of a northerly alongshore *** addition,the study reveals that an eroded beach may not be significantly identified composed of coarse *** poor correlation in morpho-sedimentary characteristics reveals the prediction of grain characteristics based on beach profile and vice-versa is unrealistic.

关键词： cross shore profile Beach volume Grain size distribution Textural characteristics wave Kali estuary

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Liver transplantation as an alternative for the treatment of neuroendocrine liver metastasis: Appraisal of the current evidence

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Hepatobiliary & Pancreatic Diseases International 2024年第2期23卷 146-153页

作者： philip c.Muller Matthias Pfister Dilmurodjon Eshmuminov Kuno Lehmann Department of surgery and Transplantation University Hospital ZurichRämistrasse 100Zurich CH-8091Switzerland

Background:Liver transplantation(LT)for neuroendocrine liver metastases(NELM)is still in *** comparing LT with liver resection(LR)for NELM are scarce,as patient selection is heterogeneous and experience is *** goal of this review was to provide a critical analysis of the evidence on LT versus LR in the treatment of *** sources:A scoping literature search on LT and LR for NELM was performed with PubMed,including English articles up to March ***:International guidelines recommend LR for NELM in resectable,well-differentiated tumors in the absence of extrahepatic metastatic disease with superior results of LR compared to systemic or liver-directed *** liver surgery has extended resectability criteria whilst entailing increased perioperative risk and short disease-free *** highly selected patients(based on the Milan criteria)with unresectable NELM,oncologic results of LT are *** factors include tumor biology(G1/G2)and burden,waiting time for LT,patient age and extrahepatic *** on low-level evi-dence,LT for low-grade NELM within the Milan criteria resulted in improved disease-free survival and overall survival compared to *** benefits of LT were lost in patients beyond the Milan ***:With adherence to strict selection criteria especially tumor biology,LT for NELM is becoming a valuable option providing oncologic benefits compared to *** evidence suggests even stricter selection criteria with regard to tumor biology.

关键词： Liver transplantation Neuroendocrine liver metastases Liver resection selection criteria Tumor biology

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Dynamic Event-Triggered consensus control for Input constrained Multi-Agent systems With a Designable Minimum Inter-Event Time

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IEEE/cAA Journal of Automatica sinica 2024年第3期11卷 649-660页

作者： Meilin Li Yue Long Tieshan Li Hongjing Liang c.L.philip chen the school of Automation Engineering University of Electronic Science and Technology of ChinaChengdu 611731China IEEE the Yangtze Delta Region Institute University of Electronic Science and Technology of ChinaHuzhou 313000 the Laboratory of Electromagnetic space cognition and Intelligent control Beijing 100089China the school of computer science and Engineering South China University of TechnologyGuangzhou 510006

This paper investigates the consensus control of multi-agent systems(MAss) with constrained input using the dynamic event-triggered mechanism(ETM).consider the MAss with small-scale networks where a centralized dynamic ETM with global information of the MAss is first ***,a distributed dynamic ETM which only uses local information is developed for the MAss with large-scale *** is shown that the semi-global consensus of the MAss can be achieved by the designed bounded control protocol where the Zeno phenomenon is eliminated by a designable minimum inter-event *** addition,it is easier to find a trade-off between the convergence rate and the minimum inter-event time by an adjustable ***,the results are extended to regional consensus of the MAss with the bounded control *** simulations show the effectiveness of the proposed approach.

关键词： constrained input designable minimum inter-event time directed communication topology dynamic event-triggered mechanism MAss consensus control

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Adaptive neural network control of a 2-DOF helicopter system considering input constraints and global prescribed performance

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science china(Information sciences) 2024年第7期67卷 224-239页

作者： Zhijia ZHAO Jiale WU Zhijie LIU We HE c.L.philip cHEN school of Mechanical and Electrical Engineering Guangzhou University school of Intelligence science and Technology and Key Laboratory of Intelligent Bionic Unmanned systems of Ministry of Education University of Science and Technology Beijing school of computer science and Engineering South China University of Technology Pazhou Lab

In this study, an adaptive neural network(NN) control is proposed for nonlinear two-degree-offreedom(2-DOF) helicopter systems considering the input constraints and global prescribed ***, radial basis function NN(RBFNN) is employed to estimate the unknown dynamics of the helicopter system. second, a smooth nonaffine function is exploited to approximate and address nonlinear constraint functions. subsequently, a new prescribed function is proposed, and an original constrained error is transformed into an equivalent unconstrained error using the error transformation and barrier function transformation methods. The analysis of the established Lyapunov function proves that the controlled system is globally uniformly bounded. Finally, the simulation and experimental results on a constructed Quanser's test platform verify the rationality and feasibility of the proposed control.

关键词： adaptive NN control 2-DOF helicopter global prescribed performance input constraints

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Light-deformable microrobots shape up for the biological obstacle course

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Light(science & Applications) 2024年第5期13卷 803-805页

作者： philip Wijesinghe centre of Biophotonics SUPASchool of Physics and AstronomyUniversity of St AndrewsNorth HaughSt AndrewsFife KY169SSUK

Euglena gracilis microalga has been transformed into a soft bio-microrobot with light-controlled motion and deformation that can address diverse bio-challenges,such as drug delivery,diseased cell removal,and photodyna... 详细信息

关键词： Euglena transformed obstacle

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MicroRNAs as potential biomarkers for diagnosis of attention deficit hyperactivity disorder

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Neural Regeneration Research 2024年第3期19卷 557-562页

作者： Bridget Martinez philip V.Peplow Department of Pharmacology University of Nevada-RenoRenoUSA Department of Medicine University of Nevada-RenoRenoUSA Department of Anatomy University of OtagoDunedinNew Zealand

Inappropriate levels of hyperactivity,impulsivity,and inattention characterize attention deficit hyperactivity disorder,a common childhood-onset neuropsychiatric *** cognitive function and learning ability of children with attention deficit hyperactivity disorder are affected,and these symptoms may persist to adulthood if they are not *** diagnosis of attention deficit hyperactivity disorder is only based on symptoms and objective tests for attention deficit hyperactivity disorder are *** for attention deficit hyperactivity disorder in children include medications,behavior therapy,counseling,and education services which can relieve many of the symptoms of attention deficit hyperactivity disorder but cannot cure *** is a need for a molecular biomarker to distinguish attention deficit hyperactivity disorder from healthy subjects and other neurological conditions,which would allow for an earlier and more accurate diagnosis and appropriate treatment to be *** expression of microRNAs is connected to brain development and disease and could provide novel biomarkers for the diagnosis and prognosis of attention deficit hyperactivity *** recent studies reviewed had performed microRNA profiling in whole blood,white blood cells,blood plasma,and blood serum of children with attention deficit hyperactivity disorder.A large number of microRNAs were dysregulated when compared to healthy controls and with some overlap between individual *** the studies that had included a validation set of patients and controls,potential candidate biomarkers for attention deficit hyperactivity disorder in children could be miR-140-3p,let-7g-5p,-30e-5p,-223-3p,-142-5p,-486-5p,-151a-3p,-151a-5p,and-126-5p in total white blood cells,and miR-4516,-6090,-4763-3p,-4281,-4466,-101-3p,-130a-3p,-138-5p,-195-5p,and-106b-5p in blood *** studies are warranted with children and adults with attention deficit hyperactivity disorder,and

关键词： adults attention deficit hyperactivity disorder biomarkers blood plasma blood serum children microRNA total white blood cells whole blood

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MicroRNAs as potential biomarkers for diagnosis of schizophrenia and influence of antipsychotic treatment

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Neural Regeneration Research 2024年第7期19卷 1523-1531页

作者： Bridget Martinez philip V.Peplow Department of Pharmacology University of Nevada-RenoRenoNVUSA Department of Medicine University of Nevada-RenoRenoNVUSA Department of Anatomy University of OtagoDunedinNew Zealand

chara cterized by positive symptoms(such as changes in behavior or thoughts,including delusions and hallu cinations),negative symptoms(such as apathy,anhedonia,and social withdrawal),and cognitive impairments,schizophrenia is a chro nic,severe,and disabling mental disorder with late adolescence or early adulthood onset,Antipsychotics are the most commonly used drugs to treat schizophrenia,but those currently in use do not fully reverse all three types of symptoms characte rizing this *** is frequently misdiagnosed,resulting in a delay of or inappropriate *** expression of microRNAs is connected to brain development and disease and could provide novel biomarkers for the diagnosis and prognosis of *** recent studies reviewed included microRNA profiling in blood-and urine-based materials and nervous tissue mate *** the studies that had validated the preliminary findings,potential candidate biomarkers for schizophrenia in adults could be miR-22-3p,-30e-5p,-92a-3p,-148b-5p,-181a-3p,-181a-5p,-181b-5p,-199 b-5p,-137 in whole blood,and miR-130b,-193a-3p in blood *** treatment of schizophrenia patients was found to modulate the expression of certain microRNAs including miR-130b,-193a-3p,-132,-195,-30e,-432 in blood *** studies are warranted with adolescents and young adults having schizophrenia and consideration should be given to using animal models of the disorder to investigate the effect of suppressing or overexpressing specific microRNAs.

关键词： antipsychotics biomarkers blood exosomes blood plasma brain tissue exosomes brain tissues leukocytes microRNAs neural stem cells olfactory neuroepithelium schizophrenia whole blood

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Empirical Wavelet Transform Based Method for Identification and Analysis of sub-synchronous Oscillation Modes Using PMU Data

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Journal of Modern Power systems and clean Energy 2024年第1期12卷 34-40页

作者： Joice G.philip Jaesung Jung Ahmet Onen the Department of Energy systems Research Ajou UniversitySuwonSouth Korea the Department of Electrical and Electronic Engineering Abdullah Gul UniversityKayseri38080Turkey the Department of Electrical and computer Engineering College of EngineeringSultan Qaboos UniversityAl-KhoudMuscatOman

This paper proposes an empirical wavelet transform(EWT)based method for identification and analysis of sub-synchronous oscillation(ssO)modes in the power system using phasor measurement unit(PMU)*** phasors from PMUs are preprocessed to check for the presence of *** the presence is established,the signal is decomposed using EWT and the parameters of the mono-components are estimated through Yoshida *** superiority of the proposed method is tested using test signals with known parameters and simulated using actual ssO signals from the Hami Power Grid in Northwest *** show the effectiveness of the proposed EWT-Yoshida method in detecting the ssO and estimating its parameters.

关键词： Empirical wavelet transform(EWT) sub-synchronous oscillation Prony-based method Yoshida algorithm variational mode decomposition phasor measurement unit(PMU)

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saliency-guided meta-hallucinator for few-shot learning

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science china(Information sciences) 2024年第10期67卷 189-210页

作者： Hongguang ZHANG chun LIU Jiandong WANG Linru MA Piotr KONIUsZ philip H.s.TORR Lin YANG systems Engineering Institute Academy of Military Sciences Data61 Commonwealth Scientific and Industrial Research Organisation Australian National University Oxford University

Learning novel object concepts from limited samples remains a considerable challenge in deep learning. The main directions for improving the few-shot learning models include(i) designing a stronger backbone,(ii) designing a powerful(dynamic) meta-classifier, and(iii) using a larger pre-training set obtained by generating or hallucinating additional samples from the small scale dataset. In this paper, we focus on item(iii) and present a novel meta-hallucination strategy. Presently, most image generators are based on a generative network(i.e., GAN) that generates new samples from the captured distribution of images. However, such networks require numerous annotated samples for training. In contrast, we propose a novel saliency-based end-to-end meta-hallucinator, where a saliency detector produces foregrounds and backgrounds of support images. such images are fed into a two-stream network to hallucinate feature samples directly in the feature space by mixing foreground and background feature samples. Then, we propose several novel mixing strategies that improve the quality and diversity of hallucinated feature ***, as not all saliency maps are meaningful or high quality, we further introduce a meta-hallucination controller that decides which foreground feature samples should participate in mixing with backgrounds. To our knowledge, we are the first to leverage saliency detection for few-shot learning. Our proposed network achieves state-of-the-art results on publicly available few-shot image classification and anomaly detection benchmarks, and outperforms competing sample mixing strategies such as the so-called Manifold Mixup.

关键词： few-shot learning saliency detection object recognition anomaly detection computer vision

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Geochemistry and depositional environment of fuchsite quartzites from sargur Group,western Dharwar craton,India

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Acta Geochimica 2024年第3期43卷 555-570页

作者： c.s.sindhuja G.Harshitha c.Manikyamba K.s.V.subramanyam csIR(council of scientific and Industrial Research)-National Geophysical Research Institute(NGRI) Uppal RoadHyderabad 500007India

Meso-Neoarchean fuchsite quartzites are present in different stratigraphic positions of Dharwar craton including the oldest(~3.3 Ga)sargur Group of western Dharwar *** present study deals with the petro-graphic and geochemical characteristics of the fuchsite quartzites from the Ghattihosahalli belt to evaluate their genesis,depositional setting and the enigma involved in the ancient sedimentation *** major mineral assemblages include quartz,fuchsite,and feldspars along with accessory kyanite and *** geochemical com-positions are characterized by high siO_(2),Al_(2)O_(3),low MgO,caO,strongly enriched cr(1326–6899 ppm),Ba(1165–3653 ppm),sr(46–210 ppm),V(107–868 ppm)and Zn(11–158 ppm)contents compared to the upper continental crust(Ucc).The Ucc normalized rare earth element(REE)patterns are characterized by depleted light REE[(La/sm)Ucc=0.33–0.95]compared to heavy REE[(Gd/Yb)_(Ucc)=0.42–1.65]with conspicuous positive Eu-anomalies(Eu/Eu^(*)=1.35–18.27)characteristic of hydrothermal solutions evidenced through the interlayered *** overall major and trace element systematics reflect a combined mafic-felsic provenance and suggest their deposition at a passive continental margin *** comprehensivefield,petrographic,and geo-chemical studies indicate that these quartzites are infiltrated by cr-richfluids released during high-grade metamorphism of associated ultramafic *** sargur and the subse-quent Dharwar orogeny amalgamated diverse lithounits from different tectonic settings,possibly leading to the release of cr-richfluids and the formation of fuchsite quartzite during or after the *** sug-gest a pre-existing stable crust prior to the sargur Group and the link between orogenic events and various mineral deposits in the Dharwar craton.

关键词： Dharwar craton Ghattihosahalli Fuchsite quartzite Provenance Depositional setting

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