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Lessons Learnt in The Management of Acute Complications following Liver Injury in Children
Raghunath B. Vasudeva,Bahubali D. Gadgade,Praveena D. Lakshmi 대한외상중환자외과학회 2020 Journal of Acute Care Surgery Vol.10 No.3
Purpose: Liver injuries constitute an important cause of hospital admissions, pediatric morbidity,and sometimes mortality. This study was undertaken to assess the spectrum of pediatric liverinjuries with special emphasis on the management of acute complications. Methods: This retrospective study used data from the Department of Pediatric Surgery, BangaloreMedical College, Bengaluru, India, between March 2013 and March 2019. All children between 1-18years were included in the study (n = 33). Children were assessed with relevance to age, sex, modeof injury, hemodynamic stability at admission, need for blood transfusions, surgery, radiologicalinvestigations, complications, total number of days of stay in hospital, and mortality. Results: There were 27 (81.8%) males and 6 (18.18%) were females. The most common cause forinjury was a road traffic accident (60.6%). The majority (nearly 65%) of pediatric liver injurieswere Grade II and III. There were 4 children who had post traumatic complications including 2pseudoaneurysms, 1 inferior vena cava thrombus, and 1 bile leak with a biloma formation whichwere managed appropriately. Conclusion: Timely and appropriate radiological evaluation is required for assessments ofcomplications. The majority of complications can be managed conservatively, and minimally invasivetechniques like endoscopic retrograde cholangiopancreatography is helpful in the management ofcomplications.
Raghunath, Chaitra,Watson, Layne T.,Jrad, Mohamed,Kapania, Rakesh K.,Kolonay, Raymond M. Techno-Press 2017 Advances in aircraft and spacecraft science Vol.4 No.3
With rapid growth in the complexity of large scale engineering systems, the application of multidisciplinary analysis and design optimization (MDO) in the engineering design process has garnered much attention. MDO addresses the challenge of integrating several different disciplines into the design process. Primary challenges of MDO include computational expense and poor scalability. The introduction of a distributed, collaborative computational environment results in better utilization of available computational resources, reducing the time to solution, and enhancing scalability. SORCER, a Java-based network-centric computing platform, enables analyses and design studies in a distributed collaborative computing environment. Two different optimization algorithms widely used in multidisciplinary engineering design-VTDIRECT95 and QNSTOP-are implemented on a SORCER grid. VTDIRECT95, a Fortran 95 implementation of D. R. Jones' algorithm DIRECT, is a highly parallelizable derivative-free deterministic global optimization algorithm. QNSTOP is a parallel quasi-Newton algorithm for stochastic optimization problems. The purpose of integrating VTDIRECT95 and QNSTOP into the SORCER framework is to provide load balancing among computational resources, resulting in a dynamically scalable process. Further, the federated computing paradigm implemented by SORCER manages distributed services in real time, thereby significantly speeding up the design process. Part 1 covers SORCER and the algorithms, Part 2 presents results for aircraft panel design with curvilinear stiffeners.
Amol D. Shinde,Raghunath Acharya,Annareddy V.R. Reddy 한국원자력학회 2017 Nuclear Engineering and Technology Vol.49 No.3
Background: The chemical characterization of metallic alloys and oxides is conventionally carried out by wet chemical analytical methods and/or instrumental methods. Instrumental neutron activation analysis (INAA) is capable of analyzing samples nondestructively. As a part of a chemical quality control exercise, Zircaloys 2 and 4, nimonic alloy, and zirconium oxide samples were analyzed by two INAA methods. The samples of alloys and oxides were also analyzed by inductively coupled plasma optical emission spectroscopy (ICP-OES) and direct current Arc OES methods, respectively, for quality assurance purposes. The samples are important in various fields including nuclear technology. Methods: Samples were neutron irradiated using nuclear reactors, and the radioactive assay was carried out using high-resolution gamma-ray spectrometry. Major to trace mass fractions were determined using both relative and internal monostandard (IM) NAA methods as well as OES methods. Results: In the case of alloys, compositional analyses as well as concentrations of some trace elements were determined, whereas in the case of zirconium oxides, six trace elements were determined. For method validation, British Chemical Standard (BCS)-certified reference material 310/1 (a nimonic alloy) was analyzed using both relative INAA and IMNAA methods. Conclusion: The results showed that IM-NAA and relative INAA methods can be used for nondestructive chemical quality control of alloys and oxide samples.
Applicability of TOPMODEL in the Catchments of Nepal: Bagmati River Basin
Abinashi Sigdell,전병훈,Raghunath Jha,Dhruba Bhatta,Reda A.I. Abou-Shanab,Veer Raghavulu Sapireddy 한국자원공학회 2011 Geosystem engineering Vol.14 No.4
TOPMODEL was applied to simulate runoff hydrograph in Bagmati River Basin. Digital Elevation Model (DEM), soil, land-use and other spatial data were analyzed using Geographic Information System (GIS). To account for spatial variability of precipitation, climate and land-use, the entire basin was divided into sub-basins and the model was run separately. Other additional computer codes have been developed for computing evapotranspiration and channel routing so as to apply TOPMODEL as a complete hydrological model for medium to large basin. Less sensitive or physically based parameters were directly measured from topographic and soil maps using looked up table, where as more sensitive parameters such as saturated transmissivity [ln(T0)] and exponential decay coefficient (m) to each sub-basin were calibrated by manual iterative method. However, subjective and objective methods were applied to test the goodness of fit of simulated hydrographs to observed hydrographs. The results are satisfactory with Nash efficiency as much as 84.8% in calibration and 82.5% in validation. The results showed annual peak, runoff volume, annual average wet and dry seasons flows simulation using the model were relatively reasonable. Most of the river basins of Nepal are steep to moderately steep sloped, densely vegetated and receives appreciable amount of frequent precipitation and hence TOPMODEL assumptions are valid. The limited available resources used to achieve these results showed that TOPMODEL will be applicable in medium to large spring fed catchments of Nepal.
K.K. Gaayathri,K. Suguna,N. Raghunath Pulipaka 한양대학교 청정에너지연구소 2023 Journal of Ceramic Processing Research Vol.24 No.4
The current work examines the flexural behavioral analysis of structural lightweight concrete (SLWC) beams made ofexpanded clay aggregate (ECA) and its conclusions. Polypropylene (PP) fiber is used in these beams. The investigation tookinto account a total of six beams, of which one specimen was constructed using regular-weight concrete and the other usingSLWC with 20% ECA in place of coarse aggregate. The remaining four beams were constructed using SLWC material withan ECA base that included polypropylene fiber in volume fractions of 0.1%, 0.2%, 0.3%, and 0.4%. Each beam underwenttesting in a loading frame up to 4-point bending.