45 research outputs found

    Tri-level Unified Framework for Human Gait Analysis

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    There are several applications that can be related to multimedia content analysis. Considering video as one of the prominent forms of multimedia content, this paper presents analysis of human walking motion (gait) found in video sequences by using promising strategy of integrating techniques from data fusion and computer vision. To provide solutions to the challenges in human gait analysis a unified framework is proposed comprising of three different levels: data level, feature descriptor level and decision level. The three levels perform specific tasks assigned to them. At the data level, features are extracted from input video sequences for minimal representation. At the feature descriptor level, features from minimal representation are rearranged to build a feature descriptor and finally at decision level meaningful interpretations are performed. For analysing human walking motion found in video sequences, initially, moving silhouettes are extracted using background subtraction for minimal representation at the data level. The extracted silhouettes are then represented in a common representation in a spatial form followed by correlation analysis and a feature descriptor is developed with minimum interest points at the feature descriptor level. Finally, interpretation of normal gait poses and transition poses are made at the decision level.Keywords:Multimedia content; Data Fusion; Unified Framework; Background Subtraction;Correlation; Feature Descriptor; interpretation of Gaits

    Erythema annulare centrifugum: a case report

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    Erythema annulare centrifugum (EAC) is a rare cutaneous disease characterized by polycyclic lesion simulating urticarial papules that enlarge centrifugally with central clearing and trailing scales. .  It is classified as a reactive erythema and has been associated with various underlying conditions, including malignancies. Diagnosis is established on history, clinical features, and supporting examination. No treatment seems to be effective for this disease and there is still a lack of consensus regarding the best approach. Current choices are focused on treating the underlying subjective complaints. We reported a case of erythema annulare centrifugum in a 49 year old female patient

    In silico characterisation of novel rice transcripts differentially expressed in phosphorus dificient conditions suggests a role of these transcripts in multiple abiotic stresses

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    Phosphorus deficiency adversely affects crop productivity. The mechanism of tolerance in plants is not well understood. The current study successfully annotated a set of highly significant (Log2 RPKM ≥3) nine novel sequences up-regulated in P deficient condition identified from a low P tolerant rice genotype. Sequence annotation identified two transcripts (Os01g37260 and Os02g11060) carrying known domains, F-box and WD, respectively. Multiple Expectation maximization for Motif Elicitation (MEME) revealed presence of conserved domains like D[LP][HY][CL]D[CM][DT]C[AP][DQ][IQ]C, [EH][DN]HN[HS] [ER][FY][EP]I[HN]H which might play a role in phosphorus deficiency tolerance. Analysis of the upstream regions indicated presence of stress responsive elements like E Box, ABRE, and MYBCORE suggesting regulation of the novel transcripts by DNA binding. Protein localization prediction tool suggests that these novel proteins might be targeted to nucleus, chloroplast and cell wall. Transcripts Os02g03640 and Os02g10250 revealed potential target sites for microRNA binding suggesting role of novel miRNAs in low phosphorus response. Our analysis suggests that an F-box protein, Os01g37260 (OSFBx14) might be a promising candidate gene playing a role in multiple abiotic stresses including P deficiency

    Improving the Optical and Thermoelectric Properties of Cs2InAgCl6 with Substitutional Doping: A DFT Insight

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    New generation Indium based lead-free Cs2InAgCl6 is a promising halide material in photovoltaic applications due to its good air stability and non-toxic behavior. But its wide band gap (>3 eV) is not suitable for solar spectrum and hence reducing the photoelectronic efficiency for device applications. Here we report a significant band gap reduction from 3.3 eV to 0.6 eV by substitutional doping and its effect on opto-electronic and opto-thermoelectric properties from first-principles study. The results predict that Sn/Pb and Ga & Cu co-doping enhance the density of states significantly near the valence band maximum (VBM) and thus reduce the band gap by shifting the VBM upward while the alkali-metals (K/Rb) slightly increase the band gap. A strong absorption peak near Shockley-Queisser limit is observed in co-doped case while in Sn/Pb-doped case, we notice a peak in the middle of the visible region of solar spectrum. The nature of band gap is indirect with Cu-Ga/Pb/Sn doping with a significant reduction in the band gap. We observe a significant increase in the power factor (PF) (2.03 mW/mK2) for n-type carrier in Pb-dpoing, which is ~3.5 times higher than the pristine case (0.6 mW/mK2) at 500 K

    Effect of Indigenous Plant Extracts on the Incidence of <em>Scirpophaga incertulas</em> (Walker) (Lepidoptera: Pyralidae) in <em>Kharif </em>Rice Ecosystem

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    494-500The field evaluation was carried out to determine the efficacy of the plant extracts of eight plant species viz; Vitex trifolia (L.), Melia azedarach (L.), Acorus calamus (L.), Ageratum conyzoides (L.), Artemisia nilagirica (C. B. Clarke), Jatropha gossypifolia (L.), Kegelia pinnata (Dc.) and Lantana camara (L.) with cow-urine and commercial biopesticide Multineem against Sirpophaga incertulas on KD 2-6-3 variety of rice during Kharif season (2012-2013) in Manipur. Cow-urine + J. gossypifolia and Cow-urine + A. nilagirica extracts @7500ml/ha were recorded the least DH (0.97%) and WEH (0.87%) infestations, respectively. However, the highest DH (2.15%) and WEH (2.16%) were recorded from the plot treated with Cow-urine + K. pinnata extract@7500ml/ha over the control plots (4.94% of DH and 3.20% of WEH). The maximum grain yield (6.58 t/ha) was harvested from the plot treated with Cow-urine + A. nilagirica extract with highest cost benefit ratio (1:35.69). However, Multineem (Azadirachtin 300ppm) showed as lowest benefit (1:7.32) because of its less effectiveness and extra cost of insecticide. The bioactivity of A. nilagirica, J. gossypifolia and M. azedarach@7500ml/ha with cow-urine gave more benefit than the commercial plant product against S. incertulas and may be recommended at the agro-climatic conditions of Manipur

    Sufficient optimality conditions and duality for nonsmooth multiobjective optimization problems via higher order strong convexity

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    In this paper, we define some new generalizations of strongly convex functions of order m for locally Lipschitz functions using Clarke subdifferential. Suitable examples illustrating the non emptiness of the newly defined classes of functions and their relationships with classical notions of pseudoconvexity and quasiconvexity are provided. These generalizations are then employed to establish sufficient optimality conditions for a nonsmooth multiobjective optimization problem involving support functions of compact convex sets. Furthermore, we formulate a mixed type dual model for the primal problem and establish weak and strong duality theorems using the notion of strict efficiency of order m. The results presented in this paper extend and unify several known results from the literature to a more general class of functions as well as optimization problems

    In silico

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    Not AvailablePotato digging with improved diggers having high effective field capacities and higher digging efficiency was carried out, ensuring total losses within permissible limit. Light weight, single row animal drawn improved digger was developed and evaluated in terraces for harvesting tubers. The performance of the digger was also compared with power tiller mounted digger and traditional digging methods prevailing in the region. Light weight animal drawn potato digger was tested at average speed of 1.72 km/h at 120 mm depth of operation. Digging efficiency and field efficiency were 93% and 88% respectively. Effective field capacity and cost of operation were 0.030 ha/h and Rs 1250/ha. Labour requirement was 34 man-h/ha excluding 150 h for picking of potato after harvest which showed a saving of 38.25% in labour and 60.93% in cost of digging (including picking of potato) over traditional digging by kudal /spade in terraces. Physical damage to dug out tuber was about 1% as compared to 4.6% in power tiller mounted digger and 0.8% in manual digging. Effective field capacity of power tiller mounted potato digger of 300 mm size was 0.055 ha/h and its field efficiency and digging efficiency were 82% and 89.8% respectively. The cost of operation with improved digger was Rs 1250/ha as compared to Rs 3200/ha by manual method and Rs 1875/ha using power tiller mounted digger.Not Availabl
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