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Novel AR-based interface for human-robot interaction and visualization

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Advances in Manufacturing 2014年第4期2卷 275-288页

作者： H.c.Fang S.K.Ong A.Y.c.Nee department of Mechanical Engineering Faculty of EngineeringNational University of Singapore9 Engineering Drive 1Singapore 117576Singapore

Intuitive and efficient interfaces for human- robot interaction （HRI） have been a challenging issue in robotics as it is essential for the prevalence of robots supporting humans in key areas of activities. this paper presents a novel augmented reality （AR） based interface to facilitate human-virtual robot interaction. A number of human-virtual robot interaction methods have been for- mulated and implemented with respect to the various types of operations needed in different robotic applications. A Euclidean distance-based method is developed to assist the users in the interaction with the virtual robot and the spatial entities in an AR environment. A monitor-based visualization mode is adopted as it enables the users to perceive the virtual contents associated with different interaction methods, and the virtual content augmented in the real environment is informative and useful to the users during their interaction with the virtual robot. case researches are presented to demonstrate the successful implementation of the AR-based HRI interface in planning robot pick-and-place operations and path following operations.

关键词： Human-robot interaction (HRI) Human-robot interface Augmented reality (AR)

Radiolarian and Planktic Foraminifera Biostratigraphy of the Early Albian Organic Rich Beds of Fahdene Formation,Northern tunisia

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Journal of Earth Science 2014年第1期25卷 45-63页

作者： M Ben Fadhel t Zouaghi A Amri M Ben Youssef département de Géologie Faculté des Sciences de Gafsa-Campus Universitaire Sidi Ahmed Zarrouk–2112 département des Géoressources CERTE–Technopole de Borj Cédria

the lower part of Fahdene Formation outcropping in northeastern tunisia is repre- sented by pelagic sequences and characterized by an important siliciclastic fraction that includes ra- diolarian and organic-rich beds of Allam Member. Litho-biostratigraphic analysis based on planktic foraminifera and radiolaria shows that deposition of organic-rich beds of Allam Member is confined to the Microhedbergella rischi Zone through the lower part of ticinella primula Zone. Age diagnostic radiolaria recovered from these beds has been identified to constrain a direct age of black shale depo- sition. the assemblages can be correlated with the radiolarian biochronozone U.A.10-11 indicating an Early Albian to early Middle Albian in age. Radiolarian assemblages composed of species characteris- tic of U.A.10 biochronozone （A. montisserei, d. gracilis） are associated with radiolarian taxa belonging to costata Zone （U.A.9 Pseudoeucyrtis hanni and thanarla pseudodecora）, which can be correlated with dercourt Member in the Ionian Zone and Paquier level of the Vocontian Basin （southeast of France）. Biostratigraphic and abundance curves analysis has demonstrated significant diversification of cryptocephalic Nassellaria and Archaeodictyomitrae, probably adapted to eutrophic conditions that characterized the Aptian-Albian transition. Ecological conditions may have governed the stratigraphic range of many cosmopolitan taxa （i.e., Pseudodictyomitrae lodogaensis） compared with stratigraphic distributions schemes reported from other domains. the timing of black shales deposition was dia- chronic due to local geodynamic conditions and upwelling currents distribution. the Allam black shales are correlative with the oceanic anoxic event OAElb which is characterized by the widespread of supraregionnally organic-rich beds in the Mediterranean tethys basins across the Aptian-Albian transition.

关键词： northeastern tunisia Albian Allam Member black shale radiolaria planktic foraminifera.

detection and classification of diabetic Retinopathy Using dcNN and BSN Models

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computers, Materials & continua 2022年第7期72卷 597-609页

作者： S.Sudha A.Srinivasan t.Gayathri devi department of EcE SRCSASTRA Deemed UniversityKumbakonamIndia

diabetes is associated with many complications that could lead to *** retinopathy,a complication of diabetes,is difficult to diagnose and may lead to vision *** identification of micro features in fundus images for the diagnosis of dR is a complex and challenging task for *** clinical testing involves complex procedures and is timeconsuming,an automated system would help ophthalmologists to detect dR and administer treatment in a timelymanner so that blindness can be *** research works have focused on image processing algorithms,or neural networks,or signal processing techniques alone to detect diabetic ***,we aimed to develop a novel integrated approach to increase the accuracy of *** approach utilized both convolutional neural networks and signal processing *** this proposed method,the biological electro retinogram(ERG)sensor network(BSN)and deep convolution neural network(dcNN)were developed to detect and classify *** the BSN system,electrodes were used to record ERGsignal,which was preprocessed to be *** was performed in the frequency domain by the application of fast Fourier transform(FFt)and mel frequency cepstral coefficients(MFccs)were *** neural network(ANN)classifier was used to classify the signals of eyes with dR and normal ***,fundus images were captured using a fundus camera,and these were used as the input for dcNN-based *** dcNN consisted of many layers to facilitate the extraction of features and classification of fundus images into normal images,non-proliferative dR(NPdR)or earlystage dR images,and proliferative dR(PdR)or advanced-stage dR ***,it classifiedNPdRaccording tomicroaneurysms,hemorrhages,cotton wool spots,and exudates,and the presence of new blood vessels indicated *** accuracy,sensitivity,and specificity of the ANNclassifier were found to be 94%,95%,and 93%,***

关键词： deep convolution neural network artificial neural network nonproliferative diabetic retinopathy biological ERG sensor network

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Money as a mediational tool and children's life world

1980年

作者：（英）d.t. 沃德黄敬宜译

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Money as a mediational tool and children's life world

Humidity sensitive organic field effect transistor

第十届全国心理学学术大会

作者： tAKAHASHI,Noboru. tAKEO,K. YAMAMOtO,t. PIAN,c. SAtO,t. Osaka Kyoiku University Kashiwara 582-8582 Japan

Money has played a central role as an economic tool in modern consumer society;people could get what they need by using money in their socio-economic activity. Money is a psychological tool in Vygotskian sense;money mediates a subject who has desire for possessing goods and goods as an object of his/her desire. People in each culture form social relationships with others by using money (e.g., selling, buying, giving, borrowing, and so on). the structure of human relationships, which is different in each culture, influences the way to use money.

关键词： money culture psychological tool children’s life world

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Journal of Semiconductors 2010年第5期31卷 40-44页

作者： I.Murtaza Kh S.Karimov Zubair Ahmad I.Qazi M.Mahroof-tahir t.A.Khan t.Amin Ghulam Ishaq Khan Institute of Engineering Sciences and technology TopiSwabiNWFP23640Pakistan Physical technical Institute of Academy of Sciences Dushanbe 734025Tajikistan St.cloud State University MN 56301-4498USA

this paper reports the experimental results for the humidity dependent properties of an organic field effect *** organic field effect transistor was fabricated on thoroughly cleaned glass substrate,in which the junction between the metal gate and the organic channel plays the role of gate *** films of organic semiconductor copper phthalocynanine（cuPc） and semitransparent Al were deposited in sequence by vacuum thermal evaporation on the glass substrate with preliminarily deposited Ag source and drain *** output and transfer characteristics of the fabricated device were *** effect of humidity on the drain current,drain current-drain voltage relationship, and threshold voltage was *** was observed that humidity has a strong effect on the characteristics of the organic field effect transistor.

关键词： organic field effect transistor cuPc metal-semiconductor Schottky junction humidity sensor

A Novel Application of Multi-Resonant dissipative Elastic Metahousing for Bearings

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Acta Mechanica Solida Sinica 2021年第4期34卷 449-465页

作者： Muhammad c.W.Lim N.S.Vyas department of Architecture and civil Engineering City University of Hong KongKowloonHong Kong SARChina department of Mechanical Engineering Indian Institute of Technology KanpurKanpur208016India

Bearing as an important machine element is widely used for industrial and automotive *** certain operational speed,bearings induce disturbing vibrations and noises that affect machine service life,productivity and passenger comfort in case of vehicle *** elastic metamaterials have caught considerable attention of scientific community due to their effective medium properties and peculiar dynamic characteristics including frequency bandgaps that can be effectively applied to attenuate and control undesirable vibration and *** a substantial amount of theoretical work for effective medium characteristics and dynamic properties of acoustic/elastic metamaterials has been reported,the practical design and application of these composite structures for real-life engineering problems still remain *** present study intends to investigate a potential application of dissipative elastic metamaterials in controlling the bearing-generated vibration and noises over an ultrawide frequency *** study is based on a simple analytical model together with rigorous finite element numerical *** has been established that the dissipative characteristic of resonant system caused by larger material mismatch broadens the local resonance bandgaps beyond the bounding resonance frequency at the cost of wave *** order to achieve broadband vibration and noise control,multi-resonant composite structures are embedded inside the bearing housing in five different *** reported results revealed the presence of broadband wave attenuation zone distributed from 3 to 52 kHz with consideration of material *** bearing-generated vibration and noises lying inside the wave attenuation zone will be *** feasibility study provides a new concept for the design and application of acoustic/elastic metamaterials in the bearing industry to improve machine service life and to enhance productivity and passenger comfo

关键词： Bearing metahousing dissipative elastic metamaterials Frequency Local resonance bandgap Vibration attenuation zone

EXPERIMENt ANd SIMULAtION FOR tHIcK-PLAtE BENdINGBY HIGH FREQUENcY INdUctOR

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Acta Metallurgica Sinica(English Letters) 1998年第6期11卷 449-455页

作者： S.Imatani Y.Okuno t.Inoue Kyoto Univ Kyoto Japan

In order to produce thick plates with complicated curved surface, a prototype bending machine by the use of high frequency inductor was developed. the bending mechanism is based on the localized stresses which are induced from the difference of temperature in thickness by the high frequency inductor. the operating speed and the thickness of plate were examined from the experiment, and the variation of the temperature was measured. Finite element analysis was carried out in the second part based on the experimentally obtained temperature distribution. the so-called Mindlin plate element was used in order to perform the simulation efficiently. the strategy to produce such curved surface in the practical process was discussed and further perspective of the production system was described. (Edited author abstract) 6 Refs.

关键词： plate bending high frequency inductor die-less forming thermoelasto-plastic deformation finite element method

Modal Identification of Offshore Platforms Using Statistical Method Based on ERA

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china Ocean Engineering 2005年第2期19卷 175-184页

作者：王树青李华军 t.takayama coastal and Offshore Research Institute Ocean University of China Qingdao 266071 China Kyoto University Gokasho Uji Kyoto 611-0011 Japan

Identification of modal parameters of a linear structure with output-only measurements has received much attention over the past decades. In the paper, the Natural Excitation technique (NExt) is used for acquisition of the impulse signals from the structural responses. then Eigensystem Realization Algorithm (ERA) is utilized for modal identification. For disregarding the fictitious ‘computational modes', a procedure, Statistically Averaging Modal Frequency Method (SAMFM), is developed to distinguish the true modes from noise modes, and to improve the precision of the identified modal frequencies of the structure. An offshore platform is modeled with the finite element method. the theoretical modal parameters are obtained for a comparison with the identified values. the dynamic responses of the platform under random wave loading are computed for providing the output signals used for identification with ERA. Results of simulation demonstrate that the proposed method can determine the system modal frequency with high precision.

关键词： modal identification eigensystem realization algorithm statistically averaging modal frequency method offshore platform