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Performance of Forearm FMG and sEMG for Estimating Elbow, Forearm and Wrist Positions

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Journal of Bionic Engineering 2017年第2期14卷 284-295页

作者： Zhen Gang Xiao carlo Menon Menrva Research Group Schools of Mechatronic Systems Engineering and Engineering Science Simon Fraser University British Columbia V3T0A3 Canada

The ability to track upper extremity movement during activity of daily living has the potential to facilitate the recovery of individuals with neurological or physical injuries. Hence, the use of Surface Electromyography （sEMG） signals to predict upper extremity movement is an area of interest in the research community. A less established technique, Force Myography （FMG）, which uses force sensors to detect forearm muscle contraction patterns, is also able to detect some movements of the arm. This paper investigates the comparative performance of sEMG and FMG when predicting wrist, forearm and elbow positions using signals extracted from the forearm only. Support Vector Machine （SVM） and Linear Discriminant Analysis （LDA） classifiers were used to evaluate the prediction performance of both FMG and sEMG data. Ten healthy volunteers participated in this study. Under a cross validation across a repetition evaluation scheme, the SVM classifier obtained averaged accuracies of 84.3%, 82.4% and 71.0%, respectively, for predicting elbow, forearm and wrist positions using FMG; while sEMG yielded 75.4%, 83.4% and 92.4% accuracies for predicting the same respective positions. The accuracies obtained using SVM are slightly, but statistical significantly, higher than the ones obtained using LDA. However, the trends on the classification performances between FMG and sEMG are consistent. These results also indicate that the forearm FMG pattern is highly influenced by the change of elbow position, while the forearm sEMG is less subjected to the change. Overall, both forearm FMG and sEMG techniques provide abundant information that can be utilized for tracking the upper extremity movements.

关键词： Surface Electromyography (sEMG) Force Myography (FMG) classification limb movement activity monitoring,upper extremity

DEM Numerical Simulation of Abrasive Wear Characteristics of a Bioinspired Ridged Surface

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Journal of Bionic Engineering 2010年第2期7卷 175-181页

作者： Mohammad Almagzoub Mohammad carlo Menon Key Laboratory of Bionic Engineering Jilin University College of Biological and Agricultural Engineering Jilin University MENRVA Group Simon Fraser University

This paper presents numerical investigations into a ridged surface whose design is inspired by the geometry of a Farrer’*** objective of the performed research is to assess if the proposed Bioinspired Ridged Surface (BRS) can potentiallyimprove wear resistance of soil-engaging components used in agricultural machinery and to validate numerical simulationsperformed using software based on the Discrete Element Method (DEM).The wear performance of the BRS is experimentallydetermined and also compared with a conventional flat *** size of soil particles and relative velocities between theabrasive sand and the testing surfaces are *** results show that the numerical simulations are in agreement withthe experimental results and support the hypothesis that abrasive wear is greatly reduced by substituting a conventional flatsurface with the BRS.

关键词： bioinspired ridged surface abrasive wear numerical simulation Discrete Element Method (DEM)

Closing the THz gap with Dirac semimetals

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Light(Science & Applications) 2022年第6期11卷 1011-1012页

作者： carlo Rizza Alessandro Molle University of L'Aquila Department of Physical and Chemical Sciences1-67100 L'AquilaItaly Consiglio Nazionale delle Ricerche(CNR) Istituto per la Microelettronica e Microsistemi(IMM)unit of Agrate Brianzavia C.Olivetti 220864 Agrate BrianzaItaly

High-performance THz photodetection is unprecedentedly accessed by integrating a topological Dirac(Weyl)semimetal in a carefully designed antenna at deep-subwavelength scales.

关键词： Dirac semi integrating

The association of type and number of high-risk criteria with cancer-specific mortality in prostate cancer patients treated with radical prostatectomy

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Current Urology 2024年第2期18卷 128-132页

作者： Francesco Chierigo Rocco Simone Flammia GabrieleSorce Benedikt Hoeh Lukas Hohenhorst Andrea Panunzio Zhe Tian Fred Saad Marcus Graefen Michele Gallucci Alberto Briganti Francesco Montorsi Felix K.H.Chun Shahrokh F.Shariat Alessandro Antonelli Giovanni Guano Guglielmo Mantica Marco Borghesi Nazareno Suardi carlo Terrone Pierre I.Karakiewicz Department of Surgical and Diagnostic Integrated Sciences University of GenovaGenovaItaly IRCCS Ospedale Policlinico San Martino GenovaItaly Cancer Prognostics and Health Outcomes Unit Division of UrologyUniversity ofMontréal Health CenterMontréalQuébecCanada Department of Urology IRCCS Policlinico San MartinoGenovaItaly Department of Maternal-Child and Urological Sciences Sapienza Rome UniversityPoliclinico Umberto I HospitalRomeItaly Department of Urology University Hospital FrankfurtFrankfurt am MainGermany Martini-Klinik Prostate Cancer Center University Hospital Hamburg-EppendorfHamburgGermany Department of Urology University of VeronaAzienda Ospedaliera Universitaria Integrata di VeronaVeronaItaly Division of Experimental Oncology/Unit of Urology URIUrological Research InstituteIRCCS San Raffaele Scientific InstituteMilanItaly Department of Urology Comprehensive Cancer CenterMedical University of ViennaViennaAustria Department of Urology Weill Cornell Medical CollegeNew YorkNYUSA Department of Urology University of Texas SouthwesternDallasTXUSA Department of Urology Second Faculty of MedicineCharles UniversityPragueCzech Republic Institute for Urology and Reproductive Health I.M.Sechenov First Moscow State Medical UniversityMoscowRussia Division of Urology Department of Special SurgeryJordan University HospitalThe University of JordanAmmanJordan

Objectives:This study aimed to test the association between of type and number of D'Amico high-risk criteria(DHRCs)with cancer-specific mortality(CSM)in high-risk prostate cancer patients treated with radical *** and methods:In the Surveillance,Epidemiology,and End Results database(2004–2016),we identified 31,281 radical prostatectomy patients with at least 1 DHRC,namely,prostate-specific antigen(PSA)>20 ng/mL(hrPSA),biopsy Gleason Grade Group(hrGGG)score of 4 and 5,or clinical tumor stage≥T3(hrcT).Multivariable Cox regression models and competing risks regression models(adjusting for other cause mortality)tested the association between DHRCs and 5-year ***:Of 31,281 patients,14,394(67%)exclusively harbored hrGGG,3189(15%)harbored hrPSA,and 1781(8.2%)harbored *** 2132 patients(6.8%)harbored a combination of the 2 DHRCs,and 138(0.6%)had all 3 ***-year CSMrates ranged from 0.9%to 3.0%when any individual DHRC was present(hrcT,hrPSA,and hrGGG,in that order),1.6%to 5.9%when 2 DHRCs were present(hrPSA-hrcT,hrcT-hrGGG,and hrPSA-hrGGG,in that order),and 8.1%when all 3 DHRCs were *** regression models and competing risks regression confirmed the independent predictor status of DHRCs for 5-year CSM that was observed in univariable analyses,with hazard ratios from 1.00 to 2.83 for 1 DHRC,2.35 to 5.88 for combinations of 2 DHRCs,and 7.13 for all 3 ***:Within individual DHRCs,hrcT and hrPSA exhibited weaker effects than hrGGG ***,a dose-response effect was identified according to the number of ***,the type and number of DHRCs allow further risk stratification within the high-risk subgroup.

关键词： High risk prostate cancer Radical prostatectomy Cancer-specific mortality Staging SEER

Clinical features and epidemiology of spondyloarthritides associated with inflammatory bowel disease

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World Journal of Gastroenterology 2009年第20期15卷 2449-2455页

作者： carlo Salvarani Walter Fries Rheumatology Unit Department of Interna Medicine Department of Internal Medicine and MedicaTherapy University of Messina

Inflammation of axial and/or peripheral joints is one of the most frequent extra-intestinal manifestations complicating the clinical course and therapeutic approach in inflammatory bowel diseases(IBD).The frequency of these complications seems to be similar for both diseases, Crohn's disease and ulcerative *** associated with IBD belongs to the category of *** involvement ranges from isolated inflammatory back pain to ankylosing spondylitis, whereas peripheral arthritis is noted in pauciarticular and in polyarticular *** radiological involvement of the sacroiliac joints is reported to occur in up to 50% of *** musculoskeletal manifestations such as buttock pain, dactylitis, calcaneal enthesitis, and thoracic pain are frequently underdiagnosed and, consequently, are not treated *** diagnostic approaches and criteria have been proposed over the past 40 years in an attempt to correctly classify and diagnose such *** correct recognition of spondylarthropathies needs an integrated multidisciplinary approach in order to identify common therapeutic strategies, especially in the era of the new biologic therapies.

关键词： Crohn disease Ankylosing spondylitis Ulcerative colitis Spondylarthropathies Arthritis Enthesopathy

Evaluating rehabilitation interventionsin Parkinson's disease with functional MRI:a promising neuroprotective strategy

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Neural Regeneration Research 2015年第5期10卷 702-703页

作者： carlo Augusto Mallio Bruno Beomonte Zobel carlo Cosimo Quattrocchi Departmental Faculty of Medicine and Surgery Unit of Diagnostic ImagingUniversità Campus Bio-Medico di Roma

Parkinson＇s disease （PD） is a progressive neurodegenerative disorder affecting approximately 10 million people world- wide （Planetta et al., 2014; Zigmond and Smeyne, 2014）. The principal clinical features of PD are bradykinesia, rigidity, tremor at rest and postural instability （Planetta et al., 2014）. It is known that both PD itself and the use of anti-parkinson drugs are associated with several non-motor symptoms such as cognitive impairment, neuropsychiatric disturbances and sleep, autonomic, and sensory disorders （Park and Stacy, 2009; Foster et al., 2014）. The histopathological hallmark of PD is the reduction of dopaminergic cells in the substantia nigra pars compacta, causing dopamine deficiency in spe- cific nuclei of the basal ganglia such as the dorsal striatum （Fearnley and Lees, 1991; Planetta et al., 2014）. The disrup- tion of the dopaminergic system has long been regarded as the major cause of PD; however, it has been shown that a widespread involvement of several non-dopaminergic path- ways also contribute to the clinical manifestations of PD （Park et al., 2014）.

关键词： MRI Evaluating rehabilitation interventionsin Parkinson’s disease with functional MRI

Asymptotic Formulae for Multivariate Kantorovich Type Generalized Sampling Series

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Acta Mathematica Sinica,English Series 2011年第7期27卷 1247-1258页

作者： carlo BARDARO Ilaria MANTELLINI Dipartimento di Matematica e Informatica Universitd di Perugia Via Vanvitelli 1 06123 Perugia Italy

In this paper an asymptotic formula of Voronovskaja type for a multivariate extension of the Kantorovich generalized sampling series is given. Moreover a quantitative version in terms of some moduli of smoothness is established. Finally some particular examples of kernels are discussed, as the Bochner-Riesz kernel and the multivariate splines.

关键词： Voronovskaja-type formula moments multivariate Kantorovich generalized sampling series Peetre K-functional

Recovering Navier–Stokes Equations from Asymptotic Limits of the Boltzmann Gas Mixture Equation

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Communications in Theoretical Physics 2016年第5期65卷 553-562页

作者： carlo Bianca Christian Dogbe Laboratoire de Physique Statistique Ecole Normale Superieure PSL Research University University Paris Diderot Sorbonne Paris-Cite Sorbonne Universites UPMC Univ Paris 06 CNRS Department of Mathematics Universite de Caen Normandie LMNOCNRS

This paper is devoted to the derivation of macroscopic fluid dynamics from the Boltzmann mesoscopic dynamics of a binary mixture of hard-sphere gas *** the hydrodynamics limit is performed by employing different time and space *** paper shows that,depending on the magnitude of the parameters which define the scaling,the macroscopic quantities(number density,mean velocity and local temperature)are solutions of the acoustic equation,the linear incompressible Euler equation and the incompressible Navier–Stokes *** derivation is formally tackled by the recent moment method proposed by[***,et al.,***.63(1991)323]and the results generalize the analysis performed in[***,et al.,*** ***.29(2015)240].

关键词： gas mixtures hydrodynamic limit asymptotic limit fluid equation conservation law

Bioinspired Dry Adhesive Materials and Their Application in Robotics： A Review

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Journal of Bionic Engineering 2016年第2期13卷 181-199页

作者： Yasong Li Jeffrey Krahn carlo Menon MENRVA Research Group School of Engineering Science Simon Fraser University 8888 University Drive Burnaby BC V5A 1S6 Canada

Dry adhesives inspired from climbing animals, such as geckos and spiders, rely on van der Waals forces to attach to the opposing surface. Biological fibrillar dry adhesives have a hierarchical structure closely resembling a tree： the surface of the skin on the animal＇s feet is covered in arrays of slender micro-fibrils, each of which supports arrays of fibrils in submicron dimensions. These nano-meter size fibrils can conform closely to the opposing surfaces to induce van der Waals interaction. Bioinspired dry adhesives have been developed in research laboratories for more than a decade. To mimic the biological fibrillar adhesives, fibrillar structures have been prepared using a variety of materials and geometrical arrangements. In this review article, the mechanism and selected fabrication methods of fibrillar adhesives are summarized for future reference in adhesive development. Robotic applications of these bioinspired adhesives are also introduced in this article. Various successful appli- cations of bioinspired fibrillar adhesives can shed light on developing smart adhesives for use in automation.

关键词： bioinspired gecko adhesive van der Waals forces biomimetic climbing robot bioinspired tape