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746 results on '"Metya A"'

1. Impact of Nutrients and Suspended Particulate Matter on Phytoplankton Chlorophyll-a Biomass, in the Estuary of Kendal, Indonesia

Author

Elis Indrayanti, Lilik Maslukah, Metya Astariningrum, and Muhammad Zainuri

Subjects
chlorophyll a, water quality, kendal estuary, Ecology, QH540-549.5
Abstract

The Kendal River estuary receives nutrient input from various community activities from the surrounding waters and will indirectly affect the physical and biological quality parameters of the waters. Phytoplankton biomass is a parameter of biological quality, which can be measured based on the concentration of chlorophyll-a, while suspended particulate matter is a parameter of its physical quality. The purpose of this study was to determine the spatial distribution of nutrients and suspended particulate matter and their effect on chlorophyll-a in the Kendal River Estuary. This research was conducted in November 2017. Sampling was carried out at 12 stations representing river, coastal and high seas areas. Chlorophyll-a and nutrients N & P, were measured based on the spectrometric method and SPM using the gravimetric method. Spatial distribution of each parameter using kriging interpolation with ArcGIS. The results showed that chlorophyll-a, nitrate, phosphate, and SPM had a similar spatial distribution pattern, which was high in the estuary area and decreased in concentration towards the sea. The results of the multiple linear regression model analysis between chlorophyll-a on nutrients and SPM followed the formula [chl-a] = -11275 + 5.249 [NO3-] + 6.987 [PO42-] + 0.004 [TSS], with a coefficient of determination (R2) of 0.76 . The most influential water quality is phosphate, followed by nitrate and TSS. Based on the chlorophyll-a value, Muara Kendal is categorized as eutrophic.

Published
2022
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2. Degrees of the Wasserstein Distance to Small Toric Models

Author

DePaul, Greg, Hoşten, Serkan, Metya, Nilava, and Nometa, Ikenna

Subjects
Mathematics - Algebraic Geometry, Mathematics - Statistics Theory, 62R01, 13P15, 13P25, 14J26, 14M25, 14Q20
Abstract

The study of the closest point(s) on a statistical model from a given distribution in the probability simplex with respect to a fixed Wasserstein metric gives rise to a polyhedral norm distance optimization problem. There are two components to the complexity of determining the Wasserstein distance from a data point to a model. One is the combinatorial complexity that is governed by the combinatorics of the Lipschitz polytope of the finite metric to be used. Another is the algebraic complexity, which is governed by the polar degrees of the Zariski closure of the model. We find formulas for the polar degrees of rational normal scrolls and graphical models whose underlying graphs are star trees. Also, the polar degrees of the graphical models with four binary random variables where the graphs are a path on four vertices and the four-cycle, as well as for small, no-three-way interaction models, were computed. We investigate the algebraic degree of computing the Wasserstein distance to a small subset of these models. It was observed that this algebraic degree is typically smaller than the corresponding polar degree., Comment: 22 pages, 6 figures, 3 tables

Published
2024

7. Elucidating refractive index sensitivity on subradiant, superradiant, and fano resonance modes in single palladium-coated gold nanorods

Author

Metya Indah Firmanti and Ji Won Ha

Subjects
AuNRs@Pd, Fano resonance, Inflection point, Localized surface plasmon resonance, Refractive index sensitivity, Medicine, Science
Abstract

Abstract Herein, we investigated the distinctive scattering properties exhibited by single gold nanorods coated with palladium (AuNRs@Pd), with variations in the Pd shell thicknesses and morphologies. AuNRs@Pd were synthesized through bottom-up epitaxial Pd growth using two different concentrations of Pd precursor. These single AuNRs@Pd displayed the characteristic of subradiant and superradiant localized surface plasmon resonance peaks, characterized by a noticeable gap marked by a Fano dip. We revealed the effect of local refractive index (RI) on the subradiant and superradiant peak energies, as well as the Fano dip in the scattering spectra of AuNRs@Pd with different Pd shell thicknesses. We demonstrated the applicability of the inflection points (IFs) method on detecting peaks and dip changes across different RIs. Thin AuNRs@Pd1mM displayed more pronounced sensitivity to peak shifts in response to variations in local RIs compared to thick AuNRs@Pd2mM. In contrast, thick AuNRs@Pd2mM exhibited greater sensitivity to changes in curvature near the subradiant and superradiant peak energies rather than peak shift sensitivity across different local RIs. Moreover, the Fano dip shift was more noticeable in thick AuNRs@Pd2mM compared to thin AuNRs@Pd1mM across different local RIs. Therefore, we provided new insight into the RI sensitivity on subradiant, superradiant, and Fano resonance modes in single AuNRs@Pd.

Published
2024
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8. Probabilistic Evaluation of Liquefaction Potential Using Multivariate Adaptive Regression Splines

Author

Kumar, Ranjan, Metya, Subhadeep, Bhattacharya, Gautam, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Jose, Babu T., editor, Sahoo, Dipak Kumar, editor, Oommen, Thomas, editor, Muthukkumaran, Kasinathan, editor, Chandrakaran, S., editor, and Santhosh Kumar, T. G., editor

Published
2024
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9. Numerical Simulation to Predict Critical Hotspot Temperature in Blast Furnace Blowpipe to Avoid Industrial Hazard

Author

Usha, Y., Tewary, Suman, Ghosh, Arpita, Dutta, Chandan, Metya, Avijit K., Palit Sagar, S., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Ghose, Bikash, editor, Mulaveesala, Ravibabu, editor, and Mylavarapu, Phani, editor

Published
2024
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11. Numerical Analysis of Reinforced Ring Foundation Subjected to Eccentric-Inclined Loading

Author

Kumar, Kishan, Metya, Subhadeep, Bhattacharya, Gautam, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Jose, Babu T., editor, Sahoo, Dipak Kumar, editor, Shin, Eun Chul, editor, Choudhury, Deepankar, editor, Joseph, Anil, editor, and Pai, Rahul R., editor

Published
2024
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15. Modulation of the strength of weak S–H⋯O hydrogen-bond: Spectroscopic study of the complexes of 2-flurothiophenol with methanol and ethanol.

Author

Metya, Surajit, Roy, Supravat, Mandal, Sourav, Huang, Qian-Rui, Kuo, Jer-Lai, and Das, Aloke

Subjects
*ATOMS in molecules theory, *NATURAL orbitals, *ETHANOL, *HYDROGEN bonding, *SULFHYDRYL group, *PROTON affinity
Abstract

Spectroscopic exploration of sulfur-centered hydrogen bonding involving a thiol group (S–H) as the hydrogen bond donor is scarce in the literature. Herein, we have investigated 1:1 complexes of 2-fluorothiophenol (2-FTP) with methanol (MeOH) and ethanol (EtOH) in the gas phase to examine the physical characteristics and strength of the S–H⋯O hydrogen bond. Structures, conformations, and the strength of the S–H⋯O interaction are investigated by measuring the electronic and Infrared (IR) spectra of the two complexes employing resonant two-photon ionization, UV–UV hole-burning, and IR–UV double resonance spectroscopic techniques combined with quantum chemical calculations. Three conformers of 2-FTP⋯MeOH and two conformers of 2-FTP⋯EtOH have been detected in the experiment. A comparison of the IR spectra obtained from the experiment with those of the low-energy conformers of 2-FTP⋯MeOH and 2-FTP⋯EtOH predicted from the theory confirms that all the observed conformers of the two complexes are primarily S–H⋯O hydrogen bonded. The IR red-shifts found in the S–H stretching frequencies in 2-FTP⋯MeOH and 2-FTP⋯EtOH concerning that in 2-FTP are ∼76 and ∼88 cm−1, respectively, which are much larger than that was reported earlier in the 2-FTP⋯H2O complex (30 cm−1). The strength and physical nature of different noncovalent interactions, including the S–H⋯O hydrogen bond existing in the complexes, are further analyzed using natural bond orbital analysis, quantum theory of atoms in molecules, and localized molecular orbital-energy decomposition analysis. The current investigation reveals that the S–H⋯O hydrogen bond can be strengthened by judicial choices of the hydrogen bond acceptors of higher proton affinities. [ABSTRACT FROM AUTHOR]

Published
2024
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16. Effect of Creep Exposure on Material Behaviours

Author

Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, Mitra, Amitava, Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, and Mitra, Amitava

Published
2023
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17. Micrographs Description

Author

Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, Mitra, Amitava, Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, and Mitra, Amitava

Published
2023
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18. Creep Testing Under Different Conditions

Author

Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, Mitra, Amitava, Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, and Mitra, Amitava

Published
2023
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26. Summing up

Author

Chowdhury, Robin, primary, Bhattacharya, Gautam, additional, and Metya, Subhadeep, additional

Published
2023
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33. Metallurgy of P22 Steel

Author

Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, Mitra, Amitava, Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, and Mitra, Amitava

Published
2023
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34. As-Received Pipe Details

Author

Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, Mitra, Amitava, Roy, Rajat K., Das, Anil K., Metya, Avijit Kumar, Mondal, Avijit, Panda, Ashis Kumar, Ghosh, M., Chand, Satish, Sagar, Sarmishtha Palit, Das, Swapan Kumar, Chhabra, Amit, Jaganathan, Swaminathan, and Mitra, Amitava

Published
2023
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36. Probabilistic Slope Stability Analysis of Bioreactor Landfills

Author

Goel, Ankit, Metya, Subhadeep, Bhattacharya, Gautam, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Muthukkumaran, Kasinathan, editor, Umashankar, Balunaini, editor, and Pitchumani, N. Kumar, editor

Published
2023
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37. Analysis for Cost Optimized EO Design of a Reversible Boolean Function Using MZIs

Author

Awasthi, Shashank, Chowdhury, Barnali, Jalil, Muhammad Arif, Ali, Jalil, Yupapin, Preecha, Metya, Sanjeev Kumar, Majumder, Alak, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tiwari, Manish, editor, Ismail, Yaseera, editor, Verma, Karan, editor, and Garg, Amit Kumar, editor

Published
2023
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38. Evolution of TDM-PON to WDM-PON Using Downstream MSK and Remodulated Upstream ASK

Author

Sarkar, Debanjan, Metya, Sanjeev Kumar, Nagaraj, Subramanyam, Anand Prem, P. K., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tiwari, Manish, editor, Ismail, Yaseera, editor, Verma, Karan, editor, and Garg, Amit Kumar, editor

Published
2023
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42. One-Dimensional-Convolutional Neural Network (1D-CNN) Based Reliability Analysis of Foundation Over Cavity Incorporating the Effect of Simulated Noise

Author

Kumar Shubham, Subhadeep Metya, Abdhesh Kumar Sinha, and Ravindran Gobinath

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

This paper presents a thorough reliability assessment of cavity foundation systems involving the generation of 272 datasets using Plaxis 2D automation. The parameters were systematically varied across feasible ranges, and Sobol-based sensitivity analysis identified the negligible influence of the soil modulus of elasticity (E) on subsequent reliability analyses. A robust 1D-CNN surrogate model was developed to predict the critical foundation responses by integrating Gaussian white noise to simulate real-world uncertainties. A log transformation with 1,000 bootstrap samples was chosen for resampling non-normally distributed data. This study employed a novel approach utilising 1D-CNN regressor models for bearing capacity (BC) prediction, achieving promising results with R2 values of 0.953 and 0.945 for BC in the training and testing phases, respectively. Bootstrapping resampling facilitates reliability analysis preparation and ensures robustness in handling complex data. Simulated noise varied with specific variance (p) from 0.01 to 0.5, allowing the examination of model efficacy under varying noise levels. Both the Monte Carlo Simulation (MCS) and first-order reliability method (FORM) were employed, revealing a reliability index (β) of 2.046 for FORM and 2.066 for MCS. This indicates a 0.976% increase in β and a 75% increase in the probability of failure transitioning from FORM to MCS, underscoring the model’s sensitivity to analytical methods.

Published
2024
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43. Seismic Response of Soil-Like Material in MSW Landfill Using Equivalent Linear Approach

Author

Shubham, Kumar, Prashad, Durgesh, Metya, Subhadeep, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Choudhary, Awdhesh Kumar, editor, Mondal, Somenath, editor, Metya, Subhadeep, editor, and Babu, G. L. Sivakumar, editor

Published
2022
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47. Microstructure Atlas of P91 Steel

Author

Roy, Rajat K., primary, Das, Anil K., additional, Metya, Avijit Kumar, additional, Mondal, Avijit, additional, Panda, Ashis Kumar, additional, Ghosh, M., additional, Chand, Satish, additional, Sagar, Sarmishtha Palit, additional, Das, Swapan Kumar, additional, Chhabra, Amit, additional, Jaganathan, Swaminathan, additional, and Mitra, Amitava, additional

Published
2023
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48. MZI-Based Electro-optic Reversible XNOR/XOR Derived from Modified Fredkin Gate

Author

Awasthi, Shashank, Kumar Metya, Sanjeev, Majumder, Alak, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Gupta, Deepak, editor, Goswami, Rajat Subhra, editor, Banerjee, Subhasish, editor, Tanveer, M., editor, and Pachori, Ram Bilas, editor

Published
2022
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49. Reliability Analysis of Settlement of a Foundation Resting Over a Circular Void

Author

Shubham, Kumar, Metya, Subhadeep, Bhattacharya, Gautam, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Satyanarayana Reddy, C. N. V., editor, Krishna, A. Murali, editor, and Satyam, Neelima, editor

Published
2022
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50. A Comparative Study on Commonly Used Methods for Calculating Bearing Capacity in Shallow Foundation

Author

Patwardhan, Kartikeya, Metya, Subhadeep, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Biswas, Sabyasachi, editor, Metya, Subhadeep, editor, Kumar, Sanjay, editor, and Samui, Pijush, editor

Published
2021
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