Pub Date : 2023-11-06DOI: 10.1007/s43538-023-00214-5
Wagesh Kamal Bajre, Vinit Srivastava, Gopesh K. Bajre, Zainab Mufarreh Elqahtani, M. S. Al-Buriahi, Rahul Vaish, Bharat Singh Rajpurohit
Paper-based electronic devices, known as “papertronics”, have gained attention recently for their ease of fabrication, economic viability, biodegradability, and versatility in flexible electronics. However, sophisticated graphite deposition methods limit their development. This study presents a simple, fast, and inexpensive fabrication method for a tunable, hand-drawn papertronic strain sensor. A real-time resistance monitoring system was developed for the pencil-on-paper (PoP) strain sensor fabrication. The sensor's resistance was also controlled through sodium chloride (NaCl) impregnation and its performance was evaluated by variations in paper substrate and graphite source through different commercially available pencils. Results showed that NaCl-treated sensors had relative resistance change values of 120–160% compared to untreated samples with 20–40% relative resistance change values.
{"title":"Calligraphic pencil-on-paper strain sensors","authors":"Wagesh Kamal Bajre, Vinit Srivastava, Gopesh K. Bajre, Zainab Mufarreh Elqahtani, M. S. Al-Buriahi, Rahul Vaish, Bharat Singh Rajpurohit","doi":"10.1007/s43538-023-00214-5","DOIUrl":"https://doi.org/10.1007/s43538-023-00214-5","url":null,"abstract":"Paper-based electronic devices, known as “papertronics”, have gained attention recently for their ease of fabrication, economic viability, biodegradability, and versatility in flexible electronics. However, sophisticated graphite deposition methods limit their development. This study presents a simple, fast, and inexpensive fabrication method for a tunable, hand-drawn papertronic strain sensor. A real-time resistance monitoring system was developed for the pencil-on-paper (PoP) strain sensor fabrication. The sensor's resistance was also controlled through sodium chloride (NaCl) impregnation and its performance was evaluated by variations in paper substrate and graphite source through different commercially available pencils. Results showed that NaCl-treated sensors had relative resistance change values of 120–160% compared to untreated samples with 20–40% relative resistance change values.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"1 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135589221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-03DOI: 10.1007/s43538-023-00213-6
Navneet Kaur Sandhu, G. P. S. Dhillon, Avtar Singh, Pritpal Singh
Eucalyptus clones respond differentially under variable moisture regimes with considerable differences in net primary production due to changed rates of photosynthesis which eventually influence plant growth attributes due to change in stomatal conductance and transpiration rate. We studied the growth attributes of five different Eucalyptus clones (PE-17, C-2045, PE-11, PE-1 and C-413) in response to varying moisture regimes viz. optimal (100% Cumulative Pan Evaporation; CPE100), sub-optimal (75% CPE; CPE75) and super-optimal (125 and 150% CPE; CPE125/150). Plant establishment under CPE100 resulted in significantly (p < 0.05) higher plant height (by ~ 8.9%), collar diameter (by ~ 9.3%) and number of branches plant−1 (by ~ 63.6%) at 90 days after their establishment, compared with those established under CPE75. Conversely, there was a non-significant (p < 0.05) difference in number of roots plant−1 as well as root length of Eucalyptus clones at 120 days after establishment under CPE75 and CPE100. However, these root growth attributes were significantly decreased under super-optimal moisture (CPE125-150; by ~ 30.2 to 37.5% for number of roots plant−1 and ~ 15.0 to 17.6% for root length) as compared to those under optimal moisture regime (CPE100). Regardless of the moisture regimes, PE-1 clone has significantly higher collar diameter, number of branches/roots plant−1, and dry branches + leaves and roots biomass, compared with other clones. The CPE100 helped increase the net primary production significantly in different components viz. dry biomass of branches + leaves (by ~ 25.1%), stems (by ~ 24.1%) and roots (by ~ 32.2%), compared with CPE75. The branches + leaves biomass of Eucalyptus was significantly related to the stems biomass (0.9096**; p < 0.01). The rate of photosynthesis was significantly decreased by ~ 56.6 to 80.6% under super-optimal (CPE125-150), compared with under optimal (CPE100) moisture regime. Similarly, the stomatal conductance was decreased by ~ 46.5 to 71.8% under CPE125–150 than CPW100. The stomatal conductance increased with increased rates of photosynthetic activity (R2 = 0.888), regardless of the clone and moisture regime. The transpiration rate of Eucalyptus clones was increased by ~ 58.2% under CPE100 than under CPE75, but was decreased significantly (by ~ 34.9 to 79.6%) with increase in moisture regime from CPE100 to CPE125–150. Therefore, it can be concluded these Eucalyptus clones has considerable potential for increased productivity at CPE100; although PE-1 outperformed based on growth attributes and rates of photosynthesis, transpiration and stomatal conductance to yield higher net primary production.
{"title":"Effect of artificially simulated moisture regimes on growth attributes of different Eucalyptus clones in sub-tropics of north-western India","authors":"Navneet Kaur Sandhu, G. P. S. Dhillon, Avtar Singh, Pritpal Singh","doi":"10.1007/s43538-023-00213-6","DOIUrl":"https://doi.org/10.1007/s43538-023-00213-6","url":null,"abstract":"Eucalyptus clones respond differentially under variable moisture regimes with considerable differences in net primary production due to changed rates of photosynthesis which eventually influence plant growth attributes due to change in stomatal conductance and transpiration rate. We studied the growth attributes of five different Eucalyptus clones (PE-17, C-2045, PE-11, PE-1 and C-413) in response to varying moisture regimes viz. optimal (100% Cumulative Pan Evaporation; CPE100), sub-optimal (75% CPE; CPE75) and super-optimal (125 and 150% CPE; CPE125/150). Plant establishment under CPE100 resulted in significantly (p < 0.05) higher plant height (by ~ 8.9%), collar diameter (by ~ 9.3%) and number of branches plant−1 (by ~ 63.6%) at 90 days after their establishment, compared with those established under CPE75. Conversely, there was a non-significant (p < 0.05) difference in number of roots plant−1 as well as root length of Eucalyptus clones at 120 days after establishment under CPE75 and CPE100. However, these root growth attributes were significantly decreased under super-optimal moisture (CPE125-150; by ~ 30.2 to 37.5% for number of roots plant−1 and ~ 15.0 to 17.6% for root length) as compared to those under optimal moisture regime (CPE100). Regardless of the moisture regimes, PE-1 clone has significantly higher collar diameter, number of branches/roots plant−1, and dry branches + leaves and roots biomass, compared with other clones. The CPE100 helped increase the net primary production significantly in different components viz. dry biomass of branches + leaves (by ~ 25.1%), stems (by ~ 24.1%) and roots (by ~ 32.2%), compared with CPE75. The branches + leaves biomass of Eucalyptus was significantly related to the stems biomass (0.9096**; p < 0.01). The rate of photosynthesis was significantly decreased by ~ 56.6 to 80.6% under super-optimal (CPE125-150), compared with under optimal (CPE100) moisture regime. Similarly, the stomatal conductance was decreased by ~ 46.5 to 71.8% under CPE125–150 than CPW100. The stomatal conductance increased with increased rates of photosynthetic activity (R2 = 0.888), regardless of the clone and moisture regime. The transpiration rate of Eucalyptus clones was increased by ~ 58.2% under CPE100 than under CPE75, but was decreased significantly (by ~ 34.9 to 79.6%) with increase in moisture regime from CPE100 to CPE125–150. Therefore, it can be concluded these Eucalyptus clones has considerable potential for increased productivity at CPE100; although PE-1 outperformed based on growth attributes and rates of photosynthesis, transpiration and stomatal conductance to yield higher net primary production.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"12 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135818343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-12DOI: 10.1007/s43538-023-00212-7
Peng Weng, Hongyu Hui, Yang Zou
The emergence of finite element model modification techniques has made it possible to use numerical theoretical analysis techniques to achieve the assessment of the bearing capacity of two problems in practical engineering. Therefore, an improved scheme of finite element model based on the response surface method is proposed, which is optimized by GA algorithm and verified. The experimental results show that the mid-span deformation and strain of the beam under static load are below 5%. Under different static responses, the deformation amplitude is within the set range of concrete structure failure, and has high sensitivity. The precision of response surface equation under different static responses is above 0.99, the highest is 0.9996, which shows the good fitting accuracy of the model. The calculated results of the two optimal methods are in good agreement with the measured results, and the deviation comparison values are within 10%, the lowest is 1.1%. It can identify the concentrated parts of the concrete beam, which is basically consistent with the actual results. In summary, the improved finite element model of response surface can be used to better judge the stress status of concrete beams. Through optimization such as genetic algorithms, the damage identification rate of structures can be effectively improved, which is of great significance in practical engineering applications.
{"title":"Application of response surface-based finite element model in structural damage identification of concrete beams","authors":"Peng Weng, Hongyu Hui, Yang Zou","doi":"10.1007/s43538-023-00212-7","DOIUrl":"https://doi.org/10.1007/s43538-023-00212-7","url":null,"abstract":"The emergence of finite element model modification techniques has made it possible to use numerical theoretical analysis techniques to achieve the assessment of the bearing capacity of two problems in practical engineering. Therefore, an improved scheme of finite element model based on the response surface method is proposed, which is optimized by GA algorithm and verified. The experimental results show that the mid-span deformation and strain of the beam under static load are below 5%. Under different static responses, the deformation amplitude is within the set range of concrete structure failure, and has high sensitivity. The precision of response surface equation under different static responses is above 0.99, the highest is 0.9996, which shows the good fitting accuracy of the model. The calculated results of the two optimal methods are in good agreement with the measured results, and the deviation comparison values are within 10%, the lowest is 1.1%. It can identify the concentrated parts of the concrete beam, which is basically consistent with the actual results. In summary, the improved finite element model of response surface can be used to better judge the stress status of concrete beams. Through optimization such as genetic algorithms, the damage identification rate of structures can be effectively improved, which is of great significance in practical engineering applications.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135968448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-06DOI: 10.1007/s43538-023-00211-8
Jin Lin
In this study, a constructal design method is used to improve geometry of a Z-shaped cavity, which is established with a solid conducting wall with interior heat generation. This design eliminates energy from the wall by minimizing the heat resistance between the solid body and fin. The optimization is achieved by varying the size of the Z-shaped cavity as well as the ratio between its volume and the rectangular volume while maintaining the remaining geometric parameters constant. Following the validation of the finite element result, various parameters affecting the highest heat created in the system will be examined. Curves and tables will provide explanation regarding the outcomes.
{"title":"Finite element modeling of heat transfer in Z-shaped cavity according to constructal design","authors":"Jin Lin","doi":"10.1007/s43538-023-00211-8","DOIUrl":"https://doi.org/10.1007/s43538-023-00211-8","url":null,"abstract":"In this study, a constructal design method is used to improve geometry of a Z-shaped cavity, which is established with a solid conducting wall with interior heat generation. This design eliminates energy from the wall by minimizing the heat resistance between the solid body and fin. The optimization is achieved by varying the size of the Z-shaped cavity as well as the ratio between its volume and the rectangular volume while maintaining the remaining geometric parameters constant. Following the validation of the finite element result, various parameters affecting the highest heat created in the system will be examined. Curves and tables will provide explanation regarding the outcomes.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135351098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article contains an overview of WIET and the related applications in 6G IoNT. Specifically, to explore the following, we: (i) introduce the 6G network along with the implementation challenges, possible techniques, THz communication and related research challenges, (ii) focus on the WIET architecture, and different energy carrying code words for efficient charging through WIET, (iii) discuss IoNT with techniques proposed for communication of nano-devices, and (iv) conduct a detailed literature review to explore the implicational aspects of the WIET in the 6G nano-network. In addition, we also investigate the expected applications of WIET in the 6G IoNT based devices and discuss the WIET implementation challenges in 6G IoNT for the optimal use of the technology. Lastly, we overview the expected design challenges which may occur during the implementation process, and identify the key research challenges which require timely solutions and which are significant to spur further research in this challenging area. Overall, through this survey, we discuss the possibility to maximize the applications of WIET in 6G IoNT.
{"title":"Survey on Wireless Information Energy Transfer (WIET) and related applications in 6G Internet of NanoThings (IoNT)","authors":"Sharma, Pragati, Pandya, Rahul Jashvantbhai, Iyer, Sridhar, Sharma, Anubhav","doi":"10.1007/s43538-023-00204-7","DOIUrl":"https://doi.org/10.1007/s43538-023-00204-7","url":null,"abstract":"This article contains an overview of WIET and the related applications in 6G IoNT. Specifically, to explore the following, we: (i) introduce the 6G network along with the implementation challenges, possible techniques, THz communication and related research challenges, (ii) focus on the WIET architecture, and different energy carrying code words for efficient charging through WIET, (iii) discuss IoNT with techniques proposed for communication of nano-devices, and (iv) conduct a detailed literature review to explore the implicational aspects of the WIET in the 6G nano-network. In addition, we also investigate the expected applications of WIET in the 6G IoNT based devices and discuss the WIET implementation challenges in 6G IoNT for the optimal use of the technology. Lastly, we overview the expected design challenges which may occur during the implementation process, and identify the key research challenges which require timely solutions and which are significant to spur further research in this challenging area. Overall, through this survey, we discuss the possibility to maximize the applications of WIET in 6G IoNT.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 10.1007/s43538-023-00210-9
Damilola S. Bodun, Damilola A. Omoboyowa, Joshua F. Adedara, Ezekiel A. Olugbogi, Favour O. Oluwamoroti, Nkechi H. Atasie, Isaac O. Oluwafemi
Breast cancer is a major public health concern worldwide, with a need for effective treatments that have minimal side effects. Flavonoids have been shown to have potential as anticancer agents. In this study, the inhibitory effect of flavonoids from Blighia sapida on the breast cancer target, Extracellular signal-regulated kinase 5 (ERK5) was evaluated. A pharmacophore hypothesis was developed based on the interactions between the target protein and its co-crystallized ligand and then applied to the screening of flavonoids present in B. sapida. The top-ranked flavonoids were identified using molecular docking, MMGBSA, and pharmacokinetics modeling, and their inhibitory activity was determined using density functional theory (DFT) and their pIC50 values. The results showed that Quercetin, Kaempferol, and ( +)-Catechin had higher docking scores and obeyed the Lipinski rule of five, indicating their potential as lead molecules for ERK5 inhibition in breast cancer therapy. The study highlights the potential of flavonoids from B. sapida as promising inhibitors of ERK5 for breast cancer management.
{"title":"Virtual screening of flavonoids from Blighia sapida against ERK5 involved in breast cancer","authors":"Damilola S. Bodun, Damilola A. Omoboyowa, Joshua F. Adedara, Ezekiel A. Olugbogi, Favour O. Oluwamoroti, Nkechi H. Atasie, Isaac O. Oluwafemi","doi":"10.1007/s43538-023-00210-9","DOIUrl":"https://doi.org/10.1007/s43538-023-00210-9","url":null,"abstract":"Breast cancer is a major public health concern worldwide, with a need for effective treatments that have minimal side effects. Flavonoids have been shown to have potential as anticancer agents. In this study, the inhibitory effect of flavonoids from Blighia sapida on the breast cancer target, Extracellular signal-regulated kinase 5 (ERK5) was evaluated. A pharmacophore hypothesis was developed based on the interactions between the target protein and its co-crystallized ligand and then applied to the screening of flavonoids present in B. sapida. The top-ranked flavonoids were identified using molecular docking, MMGBSA, and pharmacokinetics modeling, and their inhibitory activity was determined using density functional theory (DFT) and their pIC50 values. The results showed that Quercetin, Kaempferol, and ( +)-Catechin had higher docking scores and obeyed the Lipinski rule of five, indicating their potential as lead molecules for ERK5 inhibition in breast cancer therapy. The study highlights the potential of flavonoids from B. sapida as promising inhibitors of ERK5 for breast cancer management.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135828301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 10.1007/s43538-023-00206-5
Yang Li, Jianze Liu, Chengjun Chen, Yongqi Wang, Qidong Nie, Fazhan Yang
Many researchers have conducted investigations in the field of gear system vibrations using numerical or approximate methods such as piecewise linearization. It should be noted that the presented methods could not predict some important nonlinear phenomena such as subharmonic responses and chaos. In certain intervals, the system has chaotic behavior, and as a result, intense and unpredictable vibrations are observed. This research deals with the analysis of gear system nonlinear vibrations and the chaos phenomena. The modeling of the gear system backlash approximation is presented using smoothening functions, and then the bifurcation phenomenon and chaos are investigated. For this purpose, the effective parameters as well as the change intervals of these parameters, which cause chaotic behavior in the system, are determined using the bifurcation diagram. The system design is based on these results to avoid chaotic zones.
{"title":"Analyzing the chaos phenomenon and bifurcation in gear systems nonlinear vibration using smoothing function approximation","authors":"Yang Li, Jianze Liu, Chengjun Chen, Yongqi Wang, Qidong Nie, Fazhan Yang","doi":"10.1007/s43538-023-00206-5","DOIUrl":"https://doi.org/10.1007/s43538-023-00206-5","url":null,"abstract":"Many researchers have conducted investigations in the field of gear system vibrations using numerical or approximate methods such as piecewise linearization. It should be noted that the presented methods could not predict some important nonlinear phenomena such as subharmonic responses and chaos. In certain intervals, the system has chaotic behavior, and as a result, intense and unpredictable vibrations are observed. This research deals with the analysis of gear system nonlinear vibrations and the chaos phenomena. The modeling of the gear system backlash approximation is presented using smoothening functions, and then the bifurcation phenomenon and chaos are investigated. For this purpose, the effective parameters as well as the change intervals of these parameters, which cause chaotic behavior in the system, are determined using the bifurcation diagram. The system design is based on these results to avoid chaotic zones.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135895496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-28DOI: 10.1007/s43538-023-00199-1
None Smita, Rishi Dwivedi, Bhaskar Bhowani
The thermo-viscous model for Rayleigh waves in a thermo-orthotropic micropolar structure is a theoretical framework for analysing surface wave behaviour in a material having viscoelastic and thermal properties. The model considers the effect of temperature and viscosity on wave propagation, as well as the material’s micropolar characteristics, which reflect its capacity to blend and rotate. This analytical model can be used to predict the dispersive characteristics of the waves. The effect of numerous thermal parameters, such as specific heat and uniform temperature, has been thoroughly investigated. It is also shown how present work is important in different industries. To represent the nature of wave velocity with respect to wave number, graphs for various conditions such as welded contact, slip boundary, transverse stiffness boundary, and thermal contact conductance have been sketched. This could be a significant study in understanding the behaviour of surface waves in a variety of materials, including polymer composites and several biological tissues.
{"title":"The thermo-viscous model for Rayleigh waves in a thermo-orthotropic micropolar structure","authors":"None Smita, Rishi Dwivedi, Bhaskar Bhowani","doi":"10.1007/s43538-023-00199-1","DOIUrl":"https://doi.org/10.1007/s43538-023-00199-1","url":null,"abstract":"The thermo-viscous model for Rayleigh waves in a thermo-orthotropic micropolar structure is a theoretical framework for analysing surface wave behaviour in a material having viscoelastic and thermal properties. The model considers the effect of temperature and viscosity on wave propagation, as well as the material’s micropolar characteristics, which reflect its capacity to blend and rotate. This analytical model can be used to predict the dispersive characteristics of the waves. The effect of numerous thermal parameters, such as specific heat and uniform temperature, has been thoroughly investigated. It is also shown how present work is important in different industries. To represent the nature of wave velocity with respect to wave number, graphs for various conditions such as welded contact, slip boundary, transverse stiffness boundary, and thermal contact conductance have been sketched. This could be a significant study in understanding the behaviour of surface waves in a variety of materials, including polymer composites and several biological tissues.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135386083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-18DOI: 10.1007/s43538-023-00209-2
Harsh Bhati, Lata Gidwani
The performance of a solar (PV) system with a boost converter using maximum power point tracking (MPPT) control algorithms is studied in this article. The primary goals of the latest renewable energy systems are to harvest the maximum amount of power possible from high-penetration renewable energy sources and to step up the low voltage to the required voltage level with low-power semiconductor switches. Mostly in the current study period, MPPT control technology and power converter are available. This study uses real-time data from the PV system in the area of 25.1383°N, 75.8076°E in India to analyze the boost converter or in this location, there is a change in the maximum power generated in a day due to changes in weather conditions and how much longer we can find the maximum power output due to the fluctuations. The boost converter has less switching loss and voltage stress. The FL-MPPT controller is taken into account while evaluating the effectiveness of the MPPT approach in a PV system, and the findings demonstrate that it provides the best and most steady output.
{"title":"Real-time weather data analysis by the solar fuzzy logic-based MPPT controller","authors":"Harsh Bhati, Lata Gidwani","doi":"10.1007/s43538-023-00209-2","DOIUrl":"https://doi.org/10.1007/s43538-023-00209-2","url":null,"abstract":"The performance of a solar (PV) system with a boost converter using maximum power point tracking (MPPT) control algorithms is studied in this article. The primary goals of the latest renewable energy systems are to harvest the maximum amount of power possible from high-penetration renewable energy sources and to step up the low voltage to the required voltage level with low-power semiconductor switches. Mostly in the current study period, MPPT control technology and power converter are available. This study uses real-time data from the PV system in the area of 25.1383°N, 75.8076°E in India to analyze the boost converter or in this location, there is a change in the maximum power generated in a day due to changes in weather conditions and how much longer we can find the maximum power output due to the fluctuations. The boost converter has less switching loss and voltage stress. The FL-MPPT controller is taken into account while evaluating the effectiveness of the MPPT approach in a PV system, and the findings demonstrate that it provides the best and most steady output.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135153558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
By avoiding the burning of paddy residue and keeping significant amounts of nutrients in the soil for plants, conservation agricultural equipment like no-till drills can help to reduce air pollution. However, their performance parameters may have long-term effects on the health of tractor operators due to whole-body vibrations. In this study, the effect of selected field parameters on vibrations experienced by the operator, tractor, and spatially modified no-till drill on and off the field has been studied in the time and frequency domain. The depth of operation of drill significantly affected the power of vibrations along the X axis on the tractor whereas, engine speed affected vibrations at frequencies greater than 0.1. Lower depths and higher engine speeds contributed to high power vibrations in the system. All the selected variables for the study affected vibrations on the operator. The agricultural field caused more vibrations on the system, but the presence of straw helped dampen vibrations on the no-till drill.
{"title":"Enhancing conservation seeding techniques: a vibration analysis of spatially modified no-till drill in combine harvested rice fields","authors":"Tarandeep Singh, Aseem Verma, Navneet Kaur, Manjeet Singh","doi":"10.1007/s43538-023-00207-4","DOIUrl":"https://doi.org/10.1007/s43538-023-00207-4","url":null,"abstract":"By avoiding the burning of paddy residue and keeping significant amounts of nutrients in the soil for plants, conservation agricultural equipment like no-till drills can help to reduce air pollution. However, their performance parameters may have long-term effects on the health of tractor operators due to whole-body vibrations. In this study, the effect of selected field parameters on vibrations experienced by the operator, tractor, and spatially modified no-till drill on and off the field has been studied in the time and frequency domain. The depth of operation of drill significantly affected the power of vibrations along the X axis on the tractor whereas, engine speed affected vibrations at frequencies greater than 0.1. Lower depths and higher engine speeds contributed to high power vibrations in the system. All the selected variables for the study affected vibrations on the operator. The agricultural field caused more vibrations on the system, but the presence of straw helped dampen vibrations on the no-till drill.","PeriodicalId":265422,"journal":{"name":"Proceedings of the Indian National Science Academy. Part A, Physical Sciences","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135153564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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