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KUKA youBot Integration with LabVIEW for Industrial Application
Achal Agarwal,Rajat Gupta,Vinayak Agarwal,Vijayant Saini 보안공학연구지원센터 2016 International Journal of Smart Home Vol.10 No.6
In this paper, we are going to explore how we have successfully implemented the interaction of KUKA youBot with LabVIEW using NI hardware C-RIO 9025, ether CAT cable and VGA cable. KUKA has recently launched a major research and development effort towards designing a mobile manipulation platform. We have been able to control the movement of all the five axis of youBot and gripper control. With the help of VGA cable we were able to establish connection between the youBot and PC to align youBot in its “open arm position”. Real time motion of youBot is achieved using C-RIO that is real-time embedded controller.
Abhishek Srivastava,Rajat Mahajan,Ankur Nanda,Geetanjali Nanda,Nirajana Mishra,Vijayant Kanagaraju,Sahil Batra,Harvinder Singh Chhabra 대한척추외과학회 2017 Asian Spine Journal Vol.11 No.5
Study Design: A retrospective computed tomography (CT)‒based morphometric study of 84 C1pedicles in an Indian population focusing on critical morphometric dimensions vis-a-vis C1 pedicle screw placement Purpose: To determine the feasibility of C1 pedicle screw placement in an Indian population and propose a novel classification system for the same. Overview of Literature: At present, C1 pedicle screws are rarely used, and very few studies have focused on the feasibility of pedicle screw placement in terms of racial, gender, and ethnic variations in anatomical structures. There are no CT-based data on C1 pedicles that assess the feasibility of pedicle screw placement in the Indian population. Methods: We measured C1 pedicle diameter on CT coronal scan images of 42 adult patients. Extramedullary height (EMH) and intramedullary height (IMH) were measured. We examined the differences between the right and left atlas pedicles and compared measures between males and females. These data were analyzed using significance tests. Based on the results, we propose a novel classification system, which we believe will help in determining the feasibility of C1 pedicle screw placement. Results: Forty-two adult patients (84 pedicles) were examined. Average EMH and IMH were 4.48±0.91 and 0.86±0.77, respectively. Approximately, 32% of the C1 pedicles had bone thicknesses of <4 mm, 49% had IMH of <1 mm, and 38% had no pedicles. The average thickness in women was 4.21±0.93 mm, which was significantly thinner than that in men (4.73±0.81 mm, p =0.004). Right and left pedicles were not significantly different. Conclusions: Our data indicate that approximately one-third of the Indian population may not be suitable candidates for C1 pedicle screw placement. Caution should be exercised while placing type 1B and type 2 pedicles based on our proposed classification system.
Meshless local Petrov-Galerkin method for rotating Rayleigh beam
Vijay Panchore 국제구조공학회 2022 Structural Engineering and Mechanics, An Int'l Jou Vol.81 No.5
In this work, the free vibration problem of a rotating Rayleigh beam is solved using the meshless Petrov-Galerkin method which is a truly meshless method. The Rayleigh beam includes rotatory inertia in addition to Euler-Bernoulli beam theory. The radial basis functions, which satisfy the Kronecker delta property, are used for the interpolation. The essential boundary conditions can be easily applied with radial basis functions. The results are obtained using six nodes within a subdomain. The results accurately match with the published literature. Also, the results with Euler-Bernoulli are obtained to compare the change in higher natural frequencies with change in the slenderness ratio (√ 0 2 / 0). The mass and stiffness matrices are derived where we get two stiffness matrices for the node and boundary respectively. The non-dimensional form is discussed as well.
Prospective F-18 FDOPA PET Imaging Study in Human PD
Vijay Dhawan,Martin H Niethammer,Martin L Lesser,Karalyn N Pappas,Matthew Hellman,Toni M Fitzpatrick,David Bjelke,Jaskirat Singh,Loreta M Quatarolo,Yoon Young Choi,Alice Oh,David Eidelberg,Thomas Chal 대한핵의학회 2022 핵의학 분자영상 Vol.56 No.3
Purpose We present the findings of our final prospective study submitted to the U.S. Food and Drug Administration (FDA) for New Drug Application (NDA) approval for the use of 3,4-dihydroxy-6-[18F]fluoro-L-phenylalanine (F-18 FDOPA) positron emission tomography (PET) imaging for Parkinson’s disease (PD). The primary aim was to determine the sensitivity, specificity, and predictive values of F-18 FDOPA PET in parkinsonian patients with respect to clinical standard-oftruth (SOT). Secondary outcomes included the inter-rater reliability, and correlation of quantitative measures for PET with dopaminergic status. Methods In 68 parkinsonian subjects, F-18 FDOPA PET scan from 80 to 100 min was acquired following a CT scan. Scan images were presented to one expert in F-18 FDOPA image interpretation and two physicians with prior experience in I-123 FPCIT single-photon emission computed tomography image interpretation. Fifty-six subjects completed the study with a followup for SOT determination. Image readers were blind to the clinical/quantitative data; SOT clinician was blind to the image data. Results For 47 of the 56 patients, SOT was in agreement with the PET scan results. For nine patients, SOT suggested dopaminergic deficit, whereas the imaging showed normal uptake. The specificity and positive predictive values are 91% and 92%, respectively, suggesting high probability that those who test positive by the PET scan truly have dopaminergic degeneration. The sensitivity was 73%. Inter-rater agreement was 0.6–0.8 between the different readers. Conclusion Our prospective study demonstrates high specificity and moderate sensitivity of F-18 FDOPA PET for PD. We received NDA approval in October 2019.
Vijay G Goni,Rajesh Chhabra,Ashok Gupta,Neelam Marwaha,Mandeep S Dhillon,Sudesh Pebam,Nirmal Raj Gopinathan,Shashidhar Bangalore Kantharajanna 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.4
Study Design: Prospective case series. Purpose: To study the safety and feasibility of cotransplantation of bone marrow stem cells and autologous olfactory mucosa in chronic spinal cord injury. Overview of Literature: Stem cell therapies are a novel method in the attempt to restitute heavily damaged tissues. We discuss our experience with this modality in postspinal cord injury paraplegics. Methods: The study includes 9 dorsal spine injury patients with American Spinal Injury Association (ASIA) Impairment Scale (AIS) A neurological impairment who underwent de-tethering of the spinal cord followed by cotransplantation with bone marrow stem cells and an olfactory mucosal graft. Participants were evaluated at the baseline and at 6 monthly intervals. Safety and tolerability were evaluated through the monitoring for adverse events and magnetic resonance imaging evaluation. Efficacy assessment was done through neurological and functional outcome measures. Results: Surgery was tolerated well by all participants. No significant difference in the ASIA score was observed, although differences in the Functional Independence Measure and Modified Ashworth Scale were statistically significant. No significant complication was observed in any of our patients, except for neurogenic pain in one participant. The follow-up magnetic resonance imaging evaluation revealed an increase in the length of myelomalacia in seven participants. Conclusions: The cotransplantation of bone marrow stem cells and olfactory mucosa is a safe, feasible and viable procedure in AIS A participants with thoracic level injuries, as assessed at the 24-month follow-up. No efficacy could be demonstrated. For application, further large-scale multicenter studies are needed.
Quadratic B-spline finite element method for a rotating non-uniform Rayleigh beam
Vijay Panchore,Ranjan Ganguli 국제구조공학회 2017 Structural Engineering and Mechanics, An Int'l Jou Vol.61 No.6
The quadratic B-spline finite element method yields mass and stiffness matrices which are half the size of matrices obtained by the conventional finite element method. We solve the free vibration problem of a rotating Rayleigh beam using the quadratic B-spline finite element method. Rayleigh beam theory includes the rotary inertia effects in addition to the Euler- Bernoulli theory assumptions and presents a good mathematical model for rotating beams. Galerkin's approach is used to obtain the weak form which yields a system of symmetric matrices. Results obtained for the natural frequencies at different rotating speeds show an accurate match with the published results. A comparison with Euler-Bernoulli beam is done to decipher the variations in higher modes of the Rayleigh beam due to the slenderness ratio. The results are obtained for different values of non-uniform parameter ( n ).
Pixel-level image fusion techniques in remote sensing: a review
Vijay Solanky,S. K. Katiyar 대한공간정보학회 2016 Spatial Information Research Vol.24 No.4
In the recent years remote sensing image fusion of satellite images has become a popular tool for analyzing different features presented on satellite images. We have analyzed only pixel-level image fusion techniques in this paper, which integrates a low-resolution multispectral (MS) image and high-resolution panchromatic (PAN) image to produce a more informative image than any of the single image. Generally, a PAN image is having a better spatial resolution, while the MS image is having a better spectral resolution than PAN image, due to this trade-off between MS and PAN image resolutions, it could be difficult to preserve spectral and spatial resolution in a single image without a fusion technique. In this paper, we have reviewed most popular and recent image fusion techniques and implemented them on Cartosat-1, RESOURCESAT-2, LANDSAT-8 data set. Results obtained from each method by visual analysis and quantitative measures indicated that UNB fusion algorithm outperforms other techniques used in this paper.