8 research outputs found
Performance Evaluation of Multi Controller Software Defined Network Architecture on Mininet
No full textWearable Mask for Real-Time Tracking of Physiological Parameters During Athletic Training
No full textThis research aims to develop a wearable mask capable of measuring oxygen intake during sports activities. The mask incorporates various sensors to monitor heart rate, oxygen intake levels, blood oxygen levels, and body temperature. The MAX30100 sensor was used for heart rate and blood oxygen (SpO2) monitoring, while the combination of the MQ-135 gas sensor and the MPX5010DP pressure sensor was utilized for detecting oxygen intake levels. An NTC thermistor was employed for body temperature measurement. The Arduino Mega 2560 microcontroller was utilized for data processing and sensor interaction. The mask was tested in different activity states such as idle, walking, exercising, and running to collect real-time data. Results indicate that the mask accurately measured oxygen intake and other vital parameters. The collected data was processed and displayed on a 16x2 LCD with an I2C module, facilitating easy tracking of metrics over time. This innovation holds significant potential for athletic training by offering personalized insights into respiratory performance, enhancing training efficacy, and reducing the risk of overexertion. Overall, it improves the performance of athletes
Wearable Mask for Real-Time Tracking of Physiological Parameters During Athletic Training
No full textThis research aims to develop a wearable mask capable of measuring oxygen intake during sports activities. The mask incorporates various sensors to monitor heart rate, oxygen intake levels, blood oxygen levels, and body temperature. The MAX30100 sensor was used for heart rate and blood oxygen (SpO2) monitoring, while the combination of the MQ-135 gas sensor and the MPX5010DP pressure sensor was utilized for detecting oxygen intake levels. An NTC thermistor was employed for body temperature measurement. The Arduino Mega 2560 microcontroller was utilized for data processing and sensor interaction. The mask was tested in different activity states such as idle, walking, exercising, and running to collect real-time data. Results indicate that the mask accurately measured oxygen intake and other vital parameters. The collected data was processed and displayed on a 16x2 LCD with an I2C module, facilitating easy tracking of metrics over time. This innovation holds significant potential for athletic training by offering personalized insights into respiratory performance, enhancing training efficacy, and reducing the risk of overexertion. Overall, it improves the performance of athletes
Computational methods to locate and reconstruct genes for complexity reduction in comparative genomics
No full textDiscovering the functions of proteins in living organisms is an important tool for understanding cellular processes. The source data for such analysis are commonly the peptide sequences. Most common algorithms used to compare a pair of nucleotide sequence are Global alignment algorithm (Needleman-Wunch algorithm) or local alignment algorithm (Smith-Waterman algorithm). Analysis of these algorithms show that time complexity required to the above mentioned algorithms is O(mn) and space complexity required is O(mn), where m is size of one sequence and n is size of the other sequence. This is one of the major bottlenecks as most of the sequences are very large. The proposed Coding Region Sequence Analysis(CRSA) algorithm presents a method to reduce both time and space complexity by meaningfully reducing the size of sequences by removing not so significant exons using wavelet transforms. DSP techniques supply a strong basis for regions identification with three-base periodicity. © Springer-Verlag 2011
Jackfruit Seed-Derived Nanoporous Carbons as the Electrode Material for Supercapacitors
No full textHierarchically porous activated carbon materials from agro-waste, Jackfruit seeds are prepared by a chemical activation method involving the treatment with zinc chloride (ZnCl2) at different temperatures (600–1000 °C). The electrochemical supercapacitance performances of the prepared materials were studied in an aqueous electrolyte (1 M sulfuric acid, H2SO4) in a three-electrode system. Jackfruit seed carbons display nanoporous structures consisting of both micro- and mesopore architectures and they are amorphous in nature and also contain oxygenated surface functional groups, as confirmed by powder X-ray diffraction (pXRD), Raman scattering, and Fourier-transformed infrared (FTIR) spectroscopy, respectively. The surface areas and pore volumes were found to be 1216.0 to 1340.4 m2·g−1 and 0.804 to 1.144 cm3·g−1, respectively, demonstrating the better surface textural properties compared to the commercial activated carbons. Due to the high surface area, large pore volume, and well developed hierarchical micro- and mesoporosity, the optimal sample achieved a high specific capacitance of 292.2 F·g−1 at 5 mV·s−1 and 261.3 F·g−1 at 1 A·g−1 followed by outstanding high rate capability. The electrode sustained 71.6% capacity retention at a high current density of 20 A·g−1. Furthermore, the electrode displayed exceptional cycling stability with small capacitance loss (0.6%) even after 10,000 charging–discharging cycles, suggesting that Jackfruit seed would have potential in low-cost and scalable production of nanoporous carbon materials for supercapacitors applications
High-Performance Supercapacitor Materials Based on Hierarchically Porous Carbons Derived from Artocarpus heterophyllus Seed
No full textHigh-surface
area and large porosity carbon materials with hierarchically
porous structures are the preferred electrode materials for high-energy
density supercapacitors. In this contribution, we report the preparation
of ultrahigh surface area nanoporous carbon materials with hierarchically
micro- and mesopore structures from Artocarpus heterophyllus (Jackfruit) seed. This involves a potassium hydroxide (KOH) activation
method conducted at higher temperatures (600–1000 °C).
The resulting amorphous carbon materials display outstanding performance
as electrodes in electrical double-layer capacitors with an aqueous
electrolyte (1 M H2SO4), which is due to their
partially graphitic structures, ultrahigh surface areas of ca. 2104.3
m2 g–1, and large pore volumes of ca.
1.386 cm3 g–1. Electrodes prepared from
the material with optimal textural parameters lead to a high specific
capacitance of 323.8 F g–1 at 1 A g–1 and sustained 53.7% capacitance retention at a high current density
of 50 A g–1, demonstrating the high rate performance
of the electrode. The experimental results suggested fast diffusion
of the electrolyte ions near the surface of the electrode, which was
verified using molecular simulations. The simulations verified that
the electrolyte enters the pores, thereby increasing the capacitance
but reducing the charge rate compared to nonporous electrodes. Additionally,
an exceptionally long cycle stability was observed with 97% of the
capacitance retained after 10,000 charge–discharge cycles.
The results show the considerable probability of Jackfruit-seed-derived
hierarchically porous carbons as the electrode materials for high-performance
supercapacitor applications
<em>Nelumbo nucifera</em> Seed–Derived Nitrogen-Doped Hierarchically Porous Carbons as Electrode Materials for High-Performance Supercapacitors
No full textBiomass-derived activated carbon materials with hierarchically nanoporous structures containing nitrogen functionalities show excellent electrochemical performances and are explored extensively in energy storage and conversion applications. Here, we report the electrochemical supercapacitance performances of the nitrogen-doped activated carbon materials with an ultrahigh surface area prepared by the potassium hydroxide (KOH) activation of the Nelumbo nucifera (Lotus) seed in an aqueous electrolyte solution (1 M sulfuric acid: H2SO4) in a three-electrode cell. The specific surface areas and pore volumes of Lotus-seed–derived carbon materials carbonized at a different temperatures, from 600 to 1000 °C, are found in the range of 1059.6 to 2489.6 m2 g−1 and 0.819 to 2.384 cm3 g−1, respectively. The carbons are amorphous materials with a partial graphitic structure with a maximum of 3.28 atom% nitrogen content and possess hierarchically micro- and mesoporous structures. The supercapacitor electrode prepared from the best sample showed excellent electrical double-layer capacitor performance, and the electrode achieved a high specific capacitance of ca. 379.2 F g−1 at 1 A g−1 current density. Additionally, the electrode shows a high rate performance, sustaining 65.9% capacitance retention at a high current density of 50 A g−1, followed by an extraordinary long cycle life without any capacitance loss after 10,000 subsequent charging/discharging cycles. The electrochemical results demonstrate that Nelumbo nucifera seed–derived hierarchically porous carbon with nitrogen functionality would have a significant probability as an electrical double-layer capacitor electrode material for the high-performance supercapacitor applications
