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Recent developments in self-powered smart chemical sensors for wearable electronics

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Nano Research 2021年第11期14卷 3669-3689页

作者： Aaryashree Surjit sahoo Pravin Walke Saroj Kumar Nayak Chandra Sekhar Rout Dattatray J.Late Shibaura Institute of Technology Koto-CityTokyo135-8548Japan School of Basic Sciences Indian Institute of Technology BhubaneswarJatniOdisha752050India National Centre for Nanosciences and Nanotechnology University of MumbaiMumbaiMaharashtra400098India Centre for Nano and Material Sciences Jain UniversityRamanagaramBangalore562112India Centre for Nanoscience&Nanotechnology Amity University MaharashtraMumbai-Pune ExpresswayBhatanPost—SomathnePanvelMaharashtra410206India

The next generation of electronics technology is purely going to be based on wearable sensing systems. Wearable electronic sensors that can operate in a continuous and sustainable manner without the need of an external power sources, are essential for portable and mobile electronic applications. In this review article, the recent progress and advantages of wearable self-powered smart chemical sensors systems for wearable electronics are presented. An overview of various modes of energy conversion and storage technologies for self-powered devices is provided. Self-powered chemical sensors (SPCS) systems with integrated energy units are then discussed, separated as solar cell-based SPCS, triboelectric nano-generators based SPCS, piezoelectric nano-generators based SPCS, energy storage device based SPCS, and thermal energy-based SPCS. Finally, the outlook on future prospects of wearable chemical sensors in self-powered sensing systems is addressed.

关键词： chemical sensors self-powered wearable electronics smart sensors

Mathematical Morphology-Based Artificial Technique for Renewable Power Application

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Computers, Materials & Continua 2021年第11期69卷 1851-1875页

作者： Buddhadeva sahoo Sangram Keshari Routray Pravat Kumar Rout Mohammed M.Alhaider Department of Electrical Engineering Siksha‘O’Anusandhan UniversityOdisha751030India Department of Electrical Electronics Engineering Siksha‘O’Anusandhan UniversityOdisha751030India College of Engineering at Wadi Addawaser Prince Sattam bin Abdulaziz University11991Saudi Arabia

This paper suggests a combined novel control strategy for DFIG based wind power systems(WPS)under both nonlinear and unbalanced load *** combined control approach is designed by coordinating the machine side converter(MSC)and the load side converter(LSC)control *** proposed MSC control approach is designed by using a model predictive control(MPC)approach to generate appropriate real and reactive *** MSC controller selects an appropriate rotor voltage vector by using a minimized optimization cost function for the converter *** shows its superiority by eliminating the requirement of transformation,switching table,and the PWM *** proposed MSC reduces the cost,complexity,and computational burden of the *** the other hand,the LSC control approach is designed by using a mathematical morphological technique(MMT)for appropriate DC component *** to the appropriate DC-component extraction,the WPS can compensate the harmonics during both steady and dynamic ***,the LSC controller also provides active power filter operation even under the shutdown of WPS *** verify the applicability of coordinated control operation,the WPS-based microgrid system is tested under various test *** proposed WPS is designed by using a MATLAB/Simulink software.

关键词： Model predictive control mathematical morphological technique power quality power reliability wind power system sensitive load

Genetic Relationship and Structure Analysis of Root Growth Angle for Improvement of Drought Avoidance in Early and Mid-Early Maturing Rice Genotypes

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Rice science 2020年第2期27卷 124-132页

作者： Elssa PANDIT Rajendra Kumar PANDA Auromeera sahoo Dipti Ranjan PANI Sharat Kumar PRADHAN Crop Improvement Division ICAR-National Rice Research InstituteCuttackOdisha 753006India Orissa University of Agriculture&Technology Bhubaneswar 751003India ICAR-National Bureau of Plant Genetic Resource Base Center National Rice Research InstituteCuttackOdisha 753006India

Deeper rooting 1(Dro1)and Deeper rooting 2(Dro2)are the QTLs that contribute considerably to root growth angle assisting in deeper rooting of rice *** the present study,a set of 348 genotypes were shortlisted from rice germplasm based on root angle *** results of the germplasm lines under drought stress identified 25 drought tolerant donor lines based on leaf rolling,leaf drying,spikelet fertility and single plant yield.A panel containing 101 genotypes was constituted based on screening results and genotyped using Dro1 and Dro2 *** software categorized the genotypes into four sub-populations with different fixation index values for root growth *** clustering analysis and principal coordinate analysis could differentiate the genotypes with or without deeper rooting *** dendrogram constructed based on the molecular screening for deep rooting QTLs showed clear distinction between the rainfed upland cultivars and irrigated *** genotypes,namely Dular,Tepiboro,Surjamukhi,Bamawpyan,N22,Dinorado,Karni,Kusuma,Bowdel,Lalsankari and Laxmikajal,possessed both the QTLs,whereas 67 genotypes possessed only *** average angle of Dro positive genotypes ranged from 82.7°to 89.7°.These genotypes possessing the deeper rooting QTLs can be taken as donor lines to be used in marker-assisted breeding programs.

关键词： root growth angle Dro1 Dro2 deeper rooting upland rice drought avoidance

Comparative analysis of multi-criteria probabilistic FR and AHP models for forest fire risk(FFR)mapping in Melghat Tiger Reserve(MTR)forest

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Journal of Forestry Research 2020年第2期31卷 565-579页

作者： Narayan Kayet Abhisek Chakrabarty Khanindra Pathak Satiprasad sahoo Tanmoy Dutta Bijoy Krishna Hatai Indian Institute of Technology Kharagpur KharagpurWest BengalIndia Vidyasagar University MidnaporeWest BengalIndia Jadavpur University KolkataWest BengalIndia Odisha Space Application Center BhubaneswarOdishaIndia

A comparative study of Frequency Ratio(FR)and Analytic Hierarchy Process(AHP)models are performed for forest fire risk(FFR)mapping in Melghat Tiger Reserve forest,central *** of FFR depends on various hydrometeorological parameters altitude,slope,aspect,topographic position index,normalized differential vegetation index,rainfall,air temperature,land surface temperature,wind speed,distance to settlements,and distance by road are integrated using a GIS *** results from FR and AHP show similar *** FR model was significantly higher accurate(overall accuracy of 81.3%,kappa statistic 0.78)than the AHP model(overall accuracy 79.3%,kappa statistic 0.75).The FR model total forest fire risk areas were classified into five classes:very low(7.1%),low(22.2%),moderate(32.3%),high(26.9%),and very high(11.5%).The AHP fire risk classes were very low(6.7%),low(21.7%),moderate(34.0%),high(26.7%),and very high(10.9%).Sensitivity analyses were performed for AHP and FR *** results of the two different models are compared and justified concerning the forest fire sample points(Forest Survey of India)and burn images(2010-2016).These results help in designing more effective fire management plans to improve the allocation of resources across a landscape framework.

关键词： Forest fire risk(FFR) Remote sensing GIS FR AHP Sensitivity analysis Validation

Electrical properties of bulk and nano Li_(2)TiO_(3) ceramics:A comparative study

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Journal of Advanced Ceramics 2014年第2期3卷 89-97页

作者： Umasankar DASH Subhanarayan sahoo Paritosh CHAUDHURI S.K.S.PARASHAR Kajal PARASHAR School of Applied Sciences KIIT UniversityBhubaneswar-751024India Department of Electrical and Electronics Engineering Trident Academy of TechnologyBhubaneswar-751024India Institute for Plasma Research BhatGandhinagar-382428India

Nanocrystalline and bulk Li_(2)TiO_(3) having monoclinic structure were prepared by mechanical alloying as well as conventional ceramic *** impedance analysis in the frequency range of 100 Hz-1 MHz over a wide range of temperature(50-500℃)indicates the presence of grain boundary effect along with the bulk *** frequency-dependent conductivity plots exhibit power law dependence,suggesting three types of conduction in the material:low-frequency(100 Hz-1 kHz)conductivity showing long-range translational motion of electrons(frequency independent),mid-frequency(1-10 kHz)conductivity showing short-range hopping of charge carriers and high-frequency(10 kHz-1 MHz)conductivity showing conduction due to localized orientation of hopping *** electrical conductivity measurement of nanocrystalline and bulk Li_(2)TiO_(3) with temperature shows the negative temperature coefficient of resistance(NTCR)*** activation energy(0.77 eV for nano sample and 0.88 eV for bulk sample)study shows the conduction mechanism in both *** low activation energies of the samples suggest the presence of singly ionized oxygen vacancies in the conduction process.

关键词： nanocrystalline complex impedance spectroscopy(CIS) AC conductivity X-ray diffraction(XRD)

Editorial： special issue on “resilient networks： modeling, design, and applications”

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Digital Communications and Networks 2018年第1期4卷 1-2页

作者： Atilla Elci Sambit Bakshi Manmath N. sahoo Department of Computer Science and Engineering National Institute of Technology Rourkela Odisha 769 008 India

The design of resilient networks is of utmost importance today, owing to the wide range of safety-critical applications. Resilient networks try to guarantee an acceptable level of Quality of Service （QoS）, even in cases of challenges and faults in the system. The causes of obstruction in normal system operation range from simple misconfiguration, hardware failures, and software failures to intended attacks and natural disasters.

关键词： special issue resilient networks

Gas solid techniques for preparation of pure lanthanum hexaboride

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Rare Metals 2012年第3期31卷 285-289页

作者： Mukherjee A. Gulnar A.K. sahoo D.K. Krishnamurthy N. Materials Group Bhabha Atomic Research Centre Mumbai-400085 India

The processes reported for the preparation of lanthanum hexaboride (LaB6) from lanthanum oxide involve the use of carbon either elemental or in the form of boron carbide or elemental boron itself as reducing agents, fused salts at high temperatures or reactions which require the product boride to be leached out. Each of these techniques either increases the process costs and/or increases chances of contamination in fi-nal product. Pure LaB6 can best be prepared by a reaction which produces a gaseous byproduct. In the present study, such a reaction was successfully used to yield pure lanthanum hexaboride. The process involved mixing of anhydrous lanthanum chloride with aluminium and boron and heating the charges under dynamic argon flow. Lanthanum chloride is known to be highly hygroscopic; hence the process using improperly dehydrated LaCl3 led to the formation of lanthanum oxychloride which does not convert to LaB6 under conditions wherein LaCl3 converts. Not only the formation of AlCl3 but also its continuous removal from the reaction zone is necessary for the success of the process.

关键词： lanthanum oxychloride lanthanum hexaboride aluminium gas-solid

Screening and characterization of extracelluar L-asparaginase producing Bacillus subtilis strain hswx88,isolated from Taptapani hotspring of odisha,India

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Asian Pacific Journal of Tropical Biomedicine 2013年第12期3卷 936-941页

作者： Biswaprakash Pradhan Sashi K Dash Sabuj sahoo Pharmaceutical Biotechnology Division University Department of Pharmaceutical SciencesUtkal University Department of Seed Technology Orissa University of Agriculture and Technology

Objective:To screen and isolate an eco-friendly,u thermophilic and potent L-asparaginase producing bacterium,with novel immunological properties that may obviates hypersensitivity ***:In the present study baclerial strain isolated for extracellular L-asparaginase production from hotspring,identified by morphological,biochemical and physiological tests followed by t6S rDNA technology and the L-asparaginase production ability was tested by both semi quantitative and quantitative enzymatic ***:The bacterial strain was identified as Bacillus sublilis strain hswx88(GenBank Accession Number JQ237656.1).The extracellular enzyme yielding capacity isolate Bacillus subtilis strain hswx88(23.8 IU/mL)was found to be 1.7 and 14.5 limes higher than the reference organism Pectobacterium carotovorum MTCC 1428(14.2 IU/mL)and Bacillus *** 034(1.64 IU/mL).Conclusion:The isolate is eco-friendly and useful to produce bulk quantity of extracellular,thermophilic L-asparaginase for the treatment of various tumor cases and for preparation of acrylamide free fry food preparation.

关键词： L-asparaginase Thermophilic bacteria Bacillus subtilis strain hswx88 16S rDNA

Frequency and temperature dependent electrical characteristics of CaTiO_(3) nano-ceramic prepared by high-energy ball milling

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Journal of Advanced Ceramics 2013年第3期2卷 291-300页

作者： Subhanarayan sahoo Umasankar DASH S.K.S.PARASHAR S.M.ALI School of Electrical Engineering KIIT UniversityBhubaneswar 751024India Center for Nanotechnology KIIT UniversityBhubaneswar 751024India School of Applied Sciences KIIT UniversityBhubaneswar 751024India

Nanocrystalline calcium titanate(CT)ceramic has been synthesized by a combination of solid-state reaction and high-energy ball *** nano-ceramic is characterized by X-ray diffraction(XRD),dielectric study and impedance *** XRD pattern shows single phase ceramic of orthorhombic *** frequency-dependent dielectric study shows that the dielectric constant is maximized at low frequencies and decreases with an increase in *** spectroscopy analyses reveal a non-Debye type relaxation phenomenon.A significant shift in impedance loss peaks toward the higher-frequency side indicates conduction in the material favoring the long-range motion of mobile charge *** grain conduction effect is observed from the complex impedance spectrum by the appearance of one semicircular arc in Nyquist *** is also observed that the resistance decreases with an increase in temperature showing a negative temperature coefficient of resistance(NTCR).Various thermistor parameters have been calculated by fitting with Steinhart-Hart *** modulus plots represent the presence of temperature-dependent electrical relaxation phenomenon with the *** frequency-dependent AC conductivity at different temperatures indicates that the conduction process is thermally *** activation energy has been calculated from an Arrhenius plot of DC conductivity and relaxation frequency.

关键词： high-energy ball milling dielectric study impedance spectroscopy thermistor conductivity