22 research outputs found

    Prediction and Judgmental Adjustments of Supply-Chain Planning in Festive Season

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    For a robust performance Shipping costs planning in festive seasons is given the input data as free from trends season-of-year effects etc Seasonal forecasting for supplychain planning with past few years of similar data impact shipping costs Additionally during a festive season of the year unbiased and accurate prediction of shipment load plays a major role in bringing up sales Time-series forecasting methods can be useful to remove traditional fluctuations due to gap in months-of-year of festivals We describe exponential smoothing techniques and trend fitting methods and compare the predictive accuracy The accuracy is compared using rootmean square error and median absolute deviation The exponential smoothing shows changing behavior with increased data size and data item values The data is compared with and without tuning the seasonal effects due to festive seaso

    Development and Validation of Physical Education Awareness Instrument (Pea-I)

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    Research Background: The importance of physical education in the development of young children has long been recognized. Despite this, there is a lack of a standardized instrument to accurately measure awareness of physical education among this demographic. The absence of such a tool hampers our understanding of children's perceptions and the impact of physical education on their overall well-being. Purpose: The primary objective of this study is to develop and validate the Physical Education Awareness Instrument (PEA-I) to assess young children's awareness of physical education. Through rigorous statistical techniques, including factor analysis and reliability assessment, the study seeks to establish the validity and reliability of the newly developed instrument. Materials and Methodology: The study involved 817 participants, randomly divided into two groups. The researchers utilized the expectation-maximization (EM) algorithm to handle potential missing values, although none were found in the collected responses. The first half of the sample (N = 317) underwent exploratory factor analysis (EFA) using IBM SPSS 26 for Windows. Latent root criteria and the Kaiser-Meyer-Olkin (KMO) index determined the optimal number of factors, indicating significant adequacy for principal component analysis (PCA). The EFA revealed a one-factor scale, with nine items demonstrating strong internal consistency (Cronbach's alpha ranged from 0.740 to 0.796). Statistical Procedure: Following the EFA, confirmatory factor analysis (CFA) was conducted on the second half of the sample using AMOS 23. All items in the CFA met the standard criterion, confirming the instrument's acceptable factor validity. The (PEA-I) exhibited good reliability and validity, establishing it as a robust tool to assess young children's awareness of physical education.  Results: The results solidify the PEA-I as a valid and reliable measure of physical education awareness among young children. Its factor loadings, internal consistency, and factor validity indicate its effectiveness in assessing individuals' perceived awareness of physical education accurately. Conclusion and practical implication: The (PEA-I) has practical implications, serving as a valuable tool for identifying individuals' awareness of physical education and evaluating the effectiveness of physical education programs. Its potential to aid policymakers, physical educators, and health professionals is significant, as it emphasizes the importance of physical education in overall well-being and advocates for its inclusion as a compulsory subject in schools. This study contributes substantially to the field, underscoring the significance of physical education in fostering healthier lifestyles and well-rounded individuals. The findings highlight the need for increased awareness and the positive impact of physical education on youth development, shaping the discourse on its promotion among policymakers, educators, and health professionals

    Design and Development of Automatic Operated Seeds Sowing Machine

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    The area of agriculture is so wide, therefore this field requires the advance technologies in the process of sowing, cropping, cutting. This advancement in technology will not affect the quality of soil and increase the efficiency of getting crop. During the seed sowing process the feeding of seed as well as fertilizer is pour. Now a days the availability of labor is a major problem faced by farmer. We demonstrate that the easy method for seed sowing. In this work we replace complicated gear system by hall effect sensor for easier and costlier seed sowing and also reduce a need of labor. The Hall Effect sensor convert rotation into distance for which seed sowing at particular distance. Also there is adjustable system for sowing at different distance. By using this machine the sowing can be done row by row and distance will maintain. So this machine reduces their efforts and reduces the cost of seed sowing process with great efficiency and accuracy with reducement in labor requirement

    Glutamine supplementation and renal health

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    Gemstone Team JuicedTeam Juiced designed a multi-faceted research project surrounding the potential risk of college students using protein supplements developing kidney disease. Survey research showed that participants taking protein supplements were ingesting double the recommended allowance based on literature values for average American dietary protein intake. Participants predisposed to kidney disease were no less likely to take protein supplements. Kidney cell modeling showed the molecular response to glutamine, an important protein building block. A significant increase in the gene expression of low-density lipoprotein receptor and two sclerotic markers was found in response to glutamine exposure. Gene expression was time- and dose-dependent. Enzymatic degradation and high performance liquid chromatography showed that three popular protein supplements contained more glutamine than stated by the manufacturers

    Improving Fracture Toughness of Tetrafunctional Epoxy with Functionalized 2D Molybdenum Disulfide Nanosheets

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    In this work, improved fracture toughness of tetra-functional epoxy polymer was obtained using two-dimensional (2H polytype) molybdenum disulfide (MoS2) nano-platelets as a filler. Simultaneous in-situ exfoliation and functionalization of MoS2 were achieved in the presence of cetyltrimethylammonium bromide (CTAB) via sonication. The aim was to improve the dispersion of MoS2 nanoplatelets in epoxy and enhance the interfacial interaction between nanoplatelets and epoxy matrix. Epoxy nanocomposites with CTAB functionalized MoS2 (f-MoS2) nanoplatelets, ranging in content from 0.1 wt% up to 1 wt%, were fabricated. Modified MoS2 improved the fracture properties (81%) of tetrafunctional epoxy nanocomposites. The flexural strength and compressive strength improved by 64% and 47%, respectively, with 0.25 wt% loading of f-MoS2 nanoplatelets compared to neat epoxy. The addition of f-MoS2 nanoplatelets enhanced the thermomechanical properties of epoxy. This work demonstrated the potential of organically modified MoS2 nanoplatelets for improving the fracture and thermal behavior of tetrafunctional epoxy nanocomposites

    Tunable CoNi microstructures in flexible multilayered polymer films can shield electromagnetic radiation

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    This paper highlights the outstanding electromagnetic shielding efficiency achieved by constructing layer-wise assembly of polymer films containing CoNi (cobalt-nickel) micro flowers, rods, and microspheres. Following a hydrothermal approach, various CoNi microstructures were synthesized from their metal salt precursors using wet chemistry followed by dispersing them in a PVDF matrix along with conducting multiwalled carbon nanotubes (MWNT) and subsequently hot-compressing them into thin flexible films (of thickness less than 1 mm). Few films were also prepared by dispersing only MWNTs in PVDF to construct a layer-wise assembly following an approach wherein a reflector spacer (PVDF/MWNT composites) is sandwiched between n (n = 0,1,2,3) absorbers (PVDF/CoNi/MWNT composites). The film thickness was adjusted in such a way that the total thickness of each assembly is ca. 0.9 mm. This strategy wherein a reflecting layer is sandwiched between the absorbing layers resulted in an excellent total shielding efficiency (SET) of -41 dB. By careful control of different layers in this layer-wise assembly, we managed to facilitate significant magnetic losses coupled with conducting losses. Therefore, this paper offers a replacement of conventional metallic shields with unique CoNi-based polymer composites for suppressing EM radiation

    Noncovalently Functionalized Tungsten Disulfide Nanosheets for Enhanced Mechanical and Thermal Properties of Epoxy Nanocomposites

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    In the present study, noncovalently functionalized tungsten disulfide (WS<sub>2</sub>) nanosheets were used as a toughening agent for epoxy nanocomposites. WS<sub>2</sub> was modified with branched polyethyleneimine (PEI) to increase the degree of interaction of nanosheets with the epoxy matrix and prevent restacking and agglomeration of the sheets in the epoxy matrix. The functionalization of WS<sub>2</sub> sheets was confirmed through Fourier transform infrared spectroscopy and thermogravimetric analysis. The exfoliation of the bulk WS<sub>2</sub> was confirmed through X-ray diffraction and various microscopic techniques. Epoxy nanocomposites containing up to 1 wt % of WS<sub>2</sub>–PEI nanosheets were fabricated. They showed a remarkable improvement in fracture toughness (<i>K</i><sub>IC</sub>). <i>K</i><sub>IC</sub> increased from 0.94 to 1.72 MPa m<sup>–1/2</sup> for WS<sub>2</sub>–PEI nanosheet loadings as low as 0.25 wt %. Compressive and flexural properties also showed a significant improvement as incorporation of 0.25 wt % of WS<sub>2</sub>–PEI nanosheets resulted in 43 and 65% increase in the compressive and flexural strengths of epoxy nanocomposites, respectively, compared with neat epoxy. Thermal stability and thermomechanical properties of the WS<sub>2</sub>–PEI-modified epoxy also showed a significant improvement. The simultaneous improvement in the mechanical and thermal properties could be attributed to the good dispersion of WS<sub>2</sub>–PEI nanosheets in the matrix, intrinsic high strength and thermal properties of the nanosheets, and improved interaction of the WS<sub>2</sub> nanosheets with the epoxy matrix owing to the presence of PEI molecules on the surface of the WS<sub>2</sub> nanosheets
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