Subjects -> ENERGY (Total: 414 journals)
    - ELECTRICAL ENERGY (12 journals)
    - ENERGY (252 journals)
    - ENERGY: GENERAL (7 journals)
    - NUCLEAR ENERGY (40 journals)
    - PETROLEUM AND GAS (58 journals)
    - RENEWABLE ENERGY (45 journals)

ENERGY (252 journals)                  1 2 | Last

Showing 1 - 200 of 406 Journals sorted by number of followers
IET Power Electronics     Open Access   (Followers: 76)
Energy Policy     Partially Free   (Followers: 73)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 50)
IEEE Transactions on Power Systems     Hybrid Journal   (Followers: 45)
Energy     Partially Free   (Followers: 40)
IEEE Power and Energy     Full-text available via subscription   (Followers: 36)
Journal of Physical Chemistry C     Hybrid Journal   (Followers: 36)
Solar Energy Materials and Solar Cells     Hybrid Journal   (Followers: 29)
Advances in Natural Sciences : Nanoscience and Nanotechnology     Open Access   (Followers: 28)
Energy & Fuels     Hybrid Journal   (Followers: 27)
Nature Energy     Hybrid Journal   (Followers: 27)
Applied Energy     Partially Free   (Followers: 26)
Energy & Environment     Hybrid Journal   (Followers: 24)
International Journal of Alternative Propulsion     Hybrid Journal   (Followers: 23)
Energy and Power Engineering     Open Access   (Followers: 23)
International Journal of Turbomachinery, Propulsion and Power     Open Access   (Followers: 23)
Advances in High Energy Physics     Open Access   (Followers: 23)
Applied Solar Energy     Hybrid Journal   (Followers: 20)
Water International     Hybrid Journal   (Followers: 19)
Energy Materials : Materials Science and Engineering for Energy Systems     Hybrid Journal   (Followers: 19)
Solar Energy     Hybrid Journal   (Followers: 19)
International Journal of Hydrogen Energy     Partially Free   (Followers: 19)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 19)
Energy and Power     Open Access   (Followers: 18)
Journal of Solar Energy Engineering     Full-text available via subscription   (Followers: 18)
Canadian Water Resources Journal     Hybrid Journal   (Followers: 18)
Advances in Energy and Power     Open Access   (Followers: 16)
Nuclear Engineering and Design     Hybrid Journal   (Followers: 16)
IEEE Transactions on Energy Conversion     Hybrid Journal   (Followers: 16)
Progress in Energy and Combustion Science     Hybrid Journal   (Followers: 15)
Energy Conversion and Management     Hybrid Journal   (Followers: 15)
International Journal of Thermodynamics     Open Access   (Followers: 15)
Energy, Sustainability and Society     Open Access   (Followers: 15)
Energy Journal The     Hybrid Journal   (Followers: 14)
Energy and Environment Research     Open Access   (Followers: 13)
Surface Science Reports     Full-text available via subscription   (Followers: 13)
Economics and Policy of Energy and the Environment     Full-text available via subscription   (Followers: 13)
Waste Management     Hybrid Journal   (Followers: 13)
International Journal of Sustainable Energy     Hybrid Journal   (Followers: 12)
Energy and Buildings     Hybrid Journal   (Followers: 12)
Energy Systems     Hybrid Journal   (Followers: 11)
Energy Research & Social Science     Full-text available via subscription   (Followers: 11)
Oil and Gas Journal     Full-text available via subscription   (Followers: 11)
Advances in Building Energy Research     Hybrid Journal   (Followers: 11)
Journal of Solar Energy     Open Access   (Followers: 11)
Biofuels     Hybrid Journal   (Followers: 11)
Energy Science and Technology     Open Access   (Followers: 10)
Annual Review of Resource Economics     Full-text available via subscription   (Followers: 10)
Innovations : Technology, Governance, Globalization     Hybrid Journal   (Followers: 10)
Archives of Thermodynamics     Open Access   (Followers: 10)
IEEE Transactions on Nuclear Science     Hybrid Journal   (Followers: 10)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 10)
Journal of Ocean and Climate     Open Access   (Followers: 9)
Energy Efficiency     Hybrid Journal   (Followers: 9)
Journal of Modern Power Systems and Clean Energy     Open Access   (Followers: 9)
International Journal of Green Energy     Hybrid Journal   (Followers: 8)
Energy Strategy Reviews     Open Access   (Followers: 8)
International Journal of Electric and Hybrid Vehicles     Hybrid Journal   (Followers: 8)
International Journal of Energy Research     Hybrid Journal   (Followers: 8)
International Journal of Global Energy Issues     Hybrid Journal   (Followers: 8)
Batteries     Open Access   (Followers: 8)
Wiley Interdisciplinary Reviews : Energy and Environment     Hybrid Journal   (Followers: 8)
Journal of Renewable Energy     Open Access   (Followers: 8)
International Journal of Energy and Power     Open Access   (Followers: 8)
CERN courier. International journal of high energy physics     Free   (Followers: 8)
Environmental Progress & Sustainable Energy     Hybrid Journal   (Followers: 7)
Applied Nanoscience     Open Access   (Followers: 7)
Energy and Environment Focus     Free   (Followers: 7)
American Journal of Energy Research     Open Access   (Followers: 7)
Annals of Nuclear Energy     Hybrid Journal   (Followers: 7)
Fuel and Energy Abstracts     Full-text available via subscription   (Followers: 7)
Structural Control and Health Monitoring     Hybrid Journal   (Followers: 6)
Energy Science & Engineering     Open Access   (Followers: 6)
Energy Prices and Taxes     Full-text available via subscription   (Followers: 6)
Materials for Renewable and Sustainable Energy     Open Access   (Followers: 6)
Energy Reports     Open Access   (Followers: 5)
Joule     Hybrid Journal   (Followers: 5)
Computational Water, Energy, and Environmental Engineering     Open Access   (Followers: 5)
Energy Technology     Partially Free   (Followers: 5)
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 5)
Journal of Energy & Natural Resources Law     Hybrid Journal   (Followers: 5)
Frontiers in Energy Research     Open Access   (Followers: 5)
Batteries & Supercaps     Hybrid Journal   (Followers: 5)
International Journal of Sustainable Energy Planning and Management     Open Access   (Followers: 5)
Atomic Energy     Hybrid Journal   (Followers: 5)
Energy and Environmental Engineering     Open Access   (Followers: 5)
Geothermal Energy     Open Access   (Followers: 5)
Energy Studies Review     Open Access   (Followers: 5)
Journal of Energy Technologies and Policy     Open Access   (Followers: 5)
Energy Storage Materials     Full-text available via subscription   (Followers: 5)
Carbon Management     Hybrid Journal   (Followers: 5)
Journal of Nano Energy and Power Research     Full-text available via subscription   (Followers: 4)
Journal of Energy, Environment & Carbon Credits     Full-text available via subscription   (Followers: 4)
American Journal of Energy and Environment     Open Access   (Followers: 4)
International Journal of Applied Power Engineering     Open Access   (Followers: 4)
Journal of International Energy Policy     Open Access   (Followers: 4)
International Journal of Nuclear Energy Science and Technology     Hybrid Journal   (Followers: 4)
Journal of Photochemistry and Photobiology B: Biology     Hybrid Journal   (Followers: 4)
ACS Energy Letters     Hybrid Journal   (Followers: 4)
International Journal of Sustainable Engineering     Hybrid Journal   (Followers: 4)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 4)
Development of Energy Science     Open Access   (Followers: 4)
ACS Applied Energy Materials     Hybrid Journal   (Followers: 4)
Journal of Energy Storage     Full-text available via subscription   (Followers: 4)
Strategic Planning for Energy and the Environment     Hybrid Journal   (Followers: 4)
Sustainable Energy, Grids and Networks     Hybrid Journal   (Followers: 4)
Frontiers in Energy     Hybrid Journal   (Followers: 4)
Protection and Control of Modern Power Systems     Open Access   (Followers: 3)
Foundations and Trends® in Renewable Energy     Full-text available via subscription   (Followers: 3)
Functional Materials Letters     Hybrid Journal   (Followers: 3)
Power Technology and Engineering     Hybrid Journal   (Followers: 3)
Dams and Reservoirs     Hybrid Journal   (Followers: 3)
Journal of Energy, Mechanical, Material and Manufacturing Engineering     Open Access   (Followers: 3)
Journal of Energy Chemistry     Full-text available via subscription   (Followers: 3)
Journal of Photochemistry and Photobiology C: Photochemistry Reviews     Full-text available via subscription   (Followers: 3)
Energy and Emission Control Technologies     Open Access   (Followers: 3)
International Journal of Energy and Environmental Engineering     Open Access   (Followers: 3)
Wind Energy     Hybrid Journal   (Followers: 3)
International Journal of Energy and Statistics     Hybrid Journal   (Followers: 3)
Distributed Generation & Alternative Energy Journal     Hybrid Journal   (Followers: 3)
Science and Technology of Nuclear Installations     Open Access   (Followers: 3)
Journal of Photochemistry and Photobiology A: Chemistry     Hybrid Journal   (Followers: 3)
Journal of Power and Energy Engineering     Open Access   (Followers: 2)
Sustainable Energy     Open Access   (Followers: 2)
Clean Energy     Open Access   (Followers: 2)
Energy Technology & Policy     Open Access   (Followers: 2)
Green Energy & Environment     Open Access   (Followers: 2)
Materials Today Energy     Hybrid Journal   (Followers: 2)
Energy Storage     Hybrid Journal   (Followers: 2)
Journal of Technology Innovations in Renewable Energy     Hybrid Journal   (Followers: 2)
Journal of Ocean Engineering and Marine Energy     Hybrid Journal   (Followers: 2)
International Journal of Smart Grid and Green Communications     Hybrid Journal   (Followers: 2)
IET Smart Grid     Open Access   (Followers: 2)
Carbon Resources Conversion     Open Access   (Followers: 2)
Advanced Materials Technologies     Hybrid Journal   (Followers: 2)
Journal of Energy     Open Access   (Followers: 2)
International Journal of Nuclear Knowledge Management     Hybrid Journal   (Followers: 2)
Proceedings of the Institution of Civil Engineers - Energy     Hybrid Journal   (Followers: 2)
EPJ Photovoltaics     Open Access   (Followers: 2)
International Journal of Clean Coal and Energy     Open Access   (Followers: 2)
Progress in Nuclear Energy     Hybrid Journal   (Followers: 2)
Journal of Fusion Energy     Hybrid Journal   (Followers: 2)
Gcb Bioenergy     Open Access   (Followers: 2)
Science and Technology for Energy Transition     Open Access   (Followers: 2)
Journal of Energy in Southern Africa     Open Access   (Followers: 2)
Journal of Alternate Energy Sources & Technologies     Full-text available via subscription   (Followers: 2)
Journal of Nuclear Energy Science & Power Generation Technology     Hybrid Journal   (Followers: 2)
Sustainable Energy & Fuels     Hybrid Journal   (Followers: 1)
International Journal of Energy and Smart Grid     Open Access   (Followers: 1)
International Journal of Nuclear Hydrogen Production and Applications     Hybrid Journal   (Followers: 1)
Clean Technologies     Open Access   (Followers: 1)
Energy Conversion and Management : X     Open Access   (Followers: 1)
IET Energy Systems Integration     Open Access   (Followers: 1)
Radioprotection     Hybrid Journal   (Followers: 1)
Electricity Journal     Hybrid Journal   (Followers: 1)
International Journal of Nuclear Desalination     Hybrid Journal   (Followers: 1)
Michigan Journal of Sustainability     Open Access   (Followers: 1)
Clefs CEA     Full-text available via subscription   (Followers: 1)
Journal of Computational Multiphase Flows     Open Access   (Followers: 1)
International Journal of Power and Energy Conversion     Hybrid Journal   (Followers: 1)
Technology Audit and Production Reserves     Open Access   (Followers: 1)
International Journal of Coal Science & Technology     Open Access   (Followers: 1)
Nigerian Journal of Technological Research     Full-text available via subscription   (Followers: 1)
Open Journal of Energy Efficiency     Open Access   (Followers: 1)
Asian Bulletin of Energy Economics and Technology     Open Access   (Followers: 1)
Biofuel Research Journal     Open Access   (Followers: 1)
International Journal of Energy and Water Resources     Hybrid Journal  
BioPhysical Economics and Resource Quality     Hybrid Journal  
Geomechanics and Geophysics for Geo-Energy and Geo-Resources     Hybrid Journal  
Energy, Ecology and Environment     Hybrid Journal  
Technology and Economics of Smart Grids and Sustainable Energy     Hybrid Journal  
BMC Energy     Open Access  
Journal of Energy and Environment Technology of Graduate School Siam Technology College     Open Access  
Global Energy Interconnection     Open Access  
Journal of Energy Systems     Open Access  
International Journal of Energy & Engineering Sciences     Open Access  
Turkish Journal of Energy Policy     Open Access  
Energy Informatics     Open Access  
Global Challenges     Open Access  
High Voltage     Open Access  
Geomechanics for Energy and the Environment     Full-text available via subscription  
ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations     Open Access  
Sustainable Energy Technologies and Assessments     Full-text available via subscription  
Journal of China Coal Society     Open Access  
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Universal Journal of Applied Science     Open Access  
Ingeniería Energética     Open Access  
E3S Web of Conferences     Open Access  
Washington and Lee Journal of Energy, Climate, and the Environment     Open Access  
Journal of Sustainable Bioenergy Systems     Full-text available via subscription  
International Journal of Ambient Energy     Hybrid Journal  
CT&F - Ciencia, Tecnología y Futuro     Open Access  
Multequina     Open Access  
Natural Resources     Open Access  
South Pacific Journal of Natural and Applied Sciences     Hybrid Journal  
Chain Reaction     Full-text available via subscription  
Wind Engineering     Hybrid Journal  
Nuclear Data Sheets     Full-text available via subscription  
Global Energy Law and Sustainability     Hybrid Journal  
International Journal of Nuclear Governance, Economy and Ecology     Hybrid Journal  

        1 2 | Last

Similar Journals
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Applied Nanoscience
Number of Followers: 7  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2190-5509 - ISSN (Online) 2190-5517
Published by SpringerOpen Homepage  [228 journals]
  • Study of electronic and optical properties of quantum dots

    • Abstract: Abstract Shape-dependent electronic and optical properties of quantum dots (QD’s) have been simulated using the particle in a box concept and solving 3D Schrodinger equation by employing Quantum Dot Lab Software. Effect of the shape of equal sized QDs on its optical properties like absorption and its dependency on the incident angle of light and temperature of surroundings is largely unexplored. Isovolumic calculations of energy states of GaAs and InP QDs were carried out for different geometrical shapes. Out of various shapes considered, those with cylindrical shape were found to possess high energy eigenstates whereas cuboid shape associated themselves with the lowest energy eigenstates. However, with an increase in their volume, the value of corresponding energy eigenstates decreased in consonance with the other findings. Optical absorption properties of these systems were also studied as a function of temperature and incident angle of polarization in ‘temperature sweeping’ mode and ‘angle sweeping’ mode, respectively. The percentage increase in absorption was found to be largest for InP cuboid-shaped QDs. And also independent of any change in the incident angle. Our findings are very significant in increasing the efficiency of solar cells and improving the performance of optoelectronic devices such as lasers and photodetectors.
      PubDate: 2022-05-16
       
  • Cattaneo–Christov-based study of AL2O3–Cu/EG Casson hybrid nanofluid
           flow past a lubricated surface with cross diffusion and thermal
           radiation

    • Abstract: Abstract Casson fluid possesses yield stress and has great importance in biomechanics and polymer processing industries. In the present study, a mathematical model is presented to Cattaneo–Christov-based study on the heat and mass transfer, as well as entropy generation analysis of a thermal system in the presence of the Casson hybrid nanofluid over lubricated surfaces at a stagnation point. A power-law (shear-thinning) fluid is utilized for lubrication. Implementing the continuity of velocity and shear stress of Casson and power-law fluids creates interfacial conditions. We also incorporated thermal radiation effects and a uniform transverse magnetic field in the present study. The similarity techniques are used to reduce the governing nonlinear partial differential equation to a set of the ordinary differential equation. For the numerical solution of the considered problem, we have used MATLAB-based Bvp4c method. The results are presented for hybrid alumina-copper/ethylene glycol (Al2O3–Cu/EG) nanofluid. The computed results are original, and it has been noticed that the present results have excellent agreement with the results of the previous extending literature. It has been observed that the Nusselt number or heat transfer rate of hybrid nanofluid flow is better as compared to nanofluid flow.
      PubDate: 2022-05-16
       
  • Highly efficient removal of malachite green from water by ZnO/NiO/CeO2
           nanocomposite

    • Abstract: Abstract In this study, a kind of ZnO/NiO/CeO2 nanocomposite constructed by solution method was adopted to remove malachite green (MG) dye from water. The nanocomposite was characterized by Zeta potential, SEM, TEM, FTIR, XRD, XPS and BET analysis. The results indicate that ZnO/NiO/CeO2 has hierarchical porous structure containing micropores, mesopores and macropores. Through the study of the adsorption process, the adsorption performance of ZnO/NiO/CeO2 was evaluated systematically. The adsorption conditions such as initial concentration of dye, pH value and adsorption time were considered, and the equilibrium adsorption and kinetic were described by different isotherm and kinetics models. We demonstrate that ZnO/NiO/CeO2 composite displays preferential adsorption performance to cationic dye MG with great adsorption capacity of 7600 mg g−1. The ZnO/NiO/CeO2 nanocomposite displays highest removal rate when pH is 7, with adsorption time of 60 min at room temperature. The pseudo-second-order kinetic and Langmuir isothermal models are well applied to the adsorption process of MG on ZnO/NiO/CeO2. The adsorbent can be recycled for four times and maintain good adsorption performance all the time.
      PubDate: 2022-05-14
       
  • Fabrication of a novel nano-biosensor for efficient colorimetric
           determination of uric acid

    • Abstract: Abstract In this study, a novel nano-biosensor for uric acid detection has been designed and fabricated by embedding uricase into a copper nanozyme, which possessed outstanding peroxidase-like activity and could efficiently mimic horseradish peroxidase (HRP). After optimizing the preparation conditions and characterization, we successfully applied the nano-biosensor to detect uric acid levels. The equation of linear regression was prescribed as y = 0.0064x + 0.3299, while its correlation coefficient is 0.9886. The colorimetric sensor exhibited a linear response range over 1–50 μM and a relatively low limit of detection (LOD) of 0.6 µM. The nano-biosensor has the advantages of easy preparation, good reusability and excellent storage stability, while this one-step colorimetric method is simple to be operated and has high selectivity for detection of the uric acid levels in actual human samples.
      PubDate: 2022-05-12
       
  • Optimization of inversion mode and junctionless nanowire MOSFET for
           improved sensitivity to process induced variability

    • Abstract: Abstract With the scaling of MOSFET devices, study of process variations on the electrical performance of the device has become more important. Also, there is a need to reduce this process induced variability as this can further lead to instability in circuit performance of the device. This paper presents assessment and optimization of process induced variability in Inversion mode and Junctionless Nanowire MOSFET. Process parameters such as channel length, nanowire radius, oxide thickness, and channel doping are considered to estimate the performance degradation. Among all process parameters, nanowire radius results in maximum variability and oxide thickness results in minimum variability for both the devices. Junctionless Nanowire MOSFET has shown more sensitivity to threshold voltage variability as compared to conventional type. Also, using high-k dielectric, device can be optimized to have better sensitivity against process variations.
      PubDate: 2022-05-06
       
  • Superhydrophobic ZnO-Au nanocomposite over polydimethylsiloxane tubes for
           efficient photocatalytic dye degradation

    • Abstract: Abstract Among various dyes used in textile industries, rhodamine (Rh) dyes are concomitant with neurotoxic effects along with the other assortment of human diseases upon exposure. This work proposes a facile fabrication approach of a polymeric functional platform for rhodamine B (Rh-B) degradation. Herein, ZnO-Au nanohybrid wires have been synthesized with robust microfabrication approaches over the PDMS tubes. These structures have been well characterized with the help of a Field Emission Scanning Electron Microscope and contact angle goniometer. ZnO-Au hybrid wire increased the contact angle on the surface of the tube to 154.5° leading to a superhydrophobic surface. These structures are ~ 2–10 µm in length and width varying from ~ 100–200 nm. These synthetic nanocomposites are successfully tested for photocatalytic applications and evaluated the photocatalytic characteristics of ZnO nanowires and ZnO-Au hybrid wires. The super hydrophobicity of the resulting structure paved the way for its use in "self-cleaning" water treatment systems. It was confirmed that by producing a ZnO-Au hybrid wire, the Rh-B dye degradation time was shortened from ~ 610 min to ~ 330 min with a low-power UV light source. Therefore it can be concluded that the developed ZnO-Au hybrid wire showed a faster photocatalytic response in degrading detrimental dye in comparison to the ZnO nanowire.
      PubDate: 2022-05-06
       
  • Photocatalytic reaction of composite of TiO2 hydrothermally coated on
           (Cu-doped Sr4Al14O25:Eu2+,Dy3+) phosphor

    • Abstract: Abstract Sr4Al14O25:Eu2+,Dy3+ phosphor powder support for TiO2 catalyst was synthesized by a solution combustion method and thermally treated in N2-H2 reducing atmosphere. To investigate the effect of Cu transition metal ion on phosphor, varying amounts of copper (II) nitrate trihydrate solution were impregnated on Sr4Al14O25:Eu2+,Dy3+ powder. TiO2-sol was hydrothermally coated on the Cu-doped Sr4Al14O25:Eu2+,Dy3+ phosphor powder at 2-, 4-, 6-, and 8-h reaction times. The major X-ray diffraction peaks of the as-synthesized Sr4Al14O25:Eu2+,Dy3+ phosphor support were preserved even after Cu doping and TiO2 hydrothermal coating. Scanning electron microscopy (SEM) images revealed the growth of interconnected nano flakes with Cu addition, which were destroyed by longer reaction times. Methylene blue solution and toluene vapor were used for testing the photocatalytic properties of the TiO2 hydrothermally coated Cu-doped Sr4Al14O25:Eu2+,Dy3+ phosphor composites. The most outstanding photocatalytic reactions under both ultraviolet and visible light were exhibited by 0.062 M Cu phosphor coated with TiO2 for 4 h by hydrothermal reaction. This superior photocatalytic reaction was attributed to a dense nano flake morphology with higher specific surface area compared with 8-h hydrothermally and sol–gel coated samples. Thus, more active sites and a lower energy band imparted by Cu doping improved the light sensitization and electron–hole separation efficiencies.
      PubDate: 2022-05-06
       
  • Fabrication of FePt nanowires through pulsed electrodeposition into
           nanoporous alumina templates

    • Abstract: Abstract One-dimensional magnetic nanostructures have been emerging as promising nanomaterials for biomedical applications. Among those types of nanoarchitectures, FePt nanowires are particularly interesting; since they are highly biocompatible and chemically inert, their magnetic properties can be tuned by controlling not only the atomic ratio of the two elements in the alloy structure but also the nanowire’s dimensions, and they have a high magnetic anisotropy. In this work, we report the fabrication of such nanostructures through pulsed electrodeposition into nanoporous aluminium oxide templates. Using this approach, we were able to control the composition of the produced nanoarchitectures by adjusting the thickness of the barrier layer, which is located at the bottom of the template, and the current density applied during the electrodeposition process. The obtained nanostructures exhibited a heterogeneous length distribution when Pt was present. Moreover, their magnetic characterization revealed an increase of the magnetic hysteresis, coercivity, remanence, and saturation field as the Fe atomic percent got higher. Furthermore, hysteresis loops of FePt nanowire arrays were simulated and compared with the experimental measurements. Such comparison suggested that the nanostructures with Pt in their composition might have different stoichiometries along their length.
      PubDate: 2022-05-06
       
  • Antibacterial effects of copper oxide nanoparticles against E. coli
           induced infection in broilers

    • Abstract: Abstract Nanoparticles are emerging as a substitute to antibiotics to mitigate antimicrobial resistance. To check the in-vivo antibacterial activity of CuO-nanoparticles against E. coli-induced infection, 90 day-old birds were kept under similar condition for first 18 days during brooding phase. Then were randomly divided into six groups (control negative, control positive, colistin, CuO-NPs 20, 30 and 40 mg/kg) with 15 birds in each group. All the birds except the negative control group were given infection with 0.2 ml E. coli inoculum having a suspension concentration of 107 CFU/ml through Intramuscular route. After the appearance of clinical signs, respective treatments were given for 6 days. Five birds were slaughtered after 7 days post-infection and other five birds were slaughtered at 11th day post infection. The live and carcass weight of the bird were recorded on each sampling. The blood samples were collected and serum was separated to perform the immune parameters at the time of slaughtering. Histopathological samples (spleen, bursa and thymus) were also taken and fixed in 10% neutral buffered formalin. The results indicated that the relative weight of spleen was significantly improved in the CuO-NPs treated groups as compared to control group. The antibody response against ND and sheep RBC’s showed non-significant difference from control positive group. The nanoparticles treated groups showed significantly (P < 0.05) improved phagocytic and lymphoproliferative responses. The gross and histopathological studies revealed significant (P < 0.05) improvement in treatment groups than control positive group with a non-significant difference from control negative group. The group treated with CuO-NPs 40 mg/kg showed almost similar results as that of antibiotic treated group. It was concluded that CuO-NPs had antibacterial affect and can be used as an antibiotic substitute against colibacillosis.
      PubDate: 2022-05-06
       
  • Probabilistic investigation of temperature-dependent vibrational behavior
           of hetero-nanotubes

    • Abstract: Abstract The present report outlines a probabilistic investigation of the temperature-dependent resonant frequency of various BNNT and CNT-based hetero-junctions and Van der Waals (VdW) heterostructures. Prior to performing the extensive atomistic simulations, the vibrational response of pristine SWCNT is validated by the values reported in the past literature. The responses determined in the present study are found in agreement (error within ≈ ± 8%) with the published literature. With the sufficient confidence in the results obtained by MD simulations, the further detailed analysis is carried out. In the preliminary analysis, the vibrational behaviour of the considered heterostructures is evaluated by taking into account the degree of heterogeneity, boundary conditions, and the inherent strain percentage in the system. To address the limitations of the heterostructures’ fracture and elastic behaviour, the structures are subjected to uniaxial tensile deformation, with the mechanical behaviour of the structures assessed based on the degree of heterogeneity. It is noticed that, the VdW heterostructures with the outer wall BNNT (10, 10) and inner wall CNT (5, 5) results in a slightly better (3%) resonant frequency than the DWCNT. The VdW heterogeneity has a positive impact on the failure strain of the structures; however, the fracture strength and Young’s modulus reduce drastically under the influence of the VdW heterogeneity. Following the preliminary analysis, the influence of stochastic variations in the temperature on the vibrational behavior of different hetero-nanotubes is assessed. In this regard, the artificial neural network (ANN) model is integrated with the random sampling-based MD simulations to characterize the temperature-dependent resonant frequencies of hetero-junctions and VdW heterostructures. The proposed machine learning-based framework performs the complete characterization of temperature-dependent resonant frequency of the considered heterostructures, which would otherwise remain unexplored due to the exorbitant nature of performing large-scale molecular dynamics simulations.
      PubDate: 2022-05-03
       
  • Formulation and development of water-based fragrance from patchouli
           essential oils using nonionic surfactant

    • Abstract: Abstract The fragrance market is versatile and consumers need newer and safer alternatives with advancements in science and technology. Few products claim water-based fragrances available in the market, but the contents of the product are unspecified, with opaque and dense appearance. This gave rise to the idea of transparent water-based fragrance formulation using essential oil. A detailed trial study with a different type of emulsifier from the tweens and spans category was used along with a new and green emulsifier of interest, methoxy-methyl butanol (MMB), with 8% concentration and water concentration kept as high as 81%. Patchouli oil was used as it has tenacity, woody characteristics and easy availability. Water-based nano-emulsions were prepared with the help of ultrasound method for the formation of smaller droplet size with uniform distribution. Droplet size, polydispersity index (PDI), volume distribution, pH, specific gravity, odor profile, patch tests were applied to characterize as-prepared water-based nano-emulsion. The droplet size of MMB-based emulsion is in the range of 24.1–46 nm and PDI values are close to zero that is 0.062. Both the values remained within close range over 4 weeks and as prescribed in the nano-emulsion domain. pH too remained in the range 4–5 compared to other emulsifier-based emulsion whose diameter size and other parameter values changed over bigger differences. MMB-based nano-emulsion formation is comparatively transparent, stable and fragrant in comparison to tween and span-based emulsions as emphasized by characterization results and odor profile. MMB-based nano-emulsion was applied in standard products such as the incense stick, whereas a nine-pointer hedonic rating scale for sensory evaluation is used and fragrance’s shelf life acceptability is studied at three different temperatures. However, this study opens up the possibility of forming various essential oils and MMB nano emulation for their different potential applications, including in fragrances.
      PubDate: 2022-05-02
       
  • Tuning magnetic properties of cobalt ferrite nanoparticles by hematite
           amount

    • Abstract: Abstract Cobalt ferrite nanoparticles were produced using two different preparation methods: the conventional solid-state synthesis and the chemical co-precipitation. The initial proposal was to analyze the preparation route influence on magnetic and structural properties of the resulting samples. In the solid-state reaction, a heat treatment at 1200 °C for 4 h was alternated with grinding to increase the method efficiency. On the other hand, the synthesis by chemical co-precipitation was performed with different flow by adding the alkaline solution (NaOH). The preparations were performed at 4 different flow regimes: by the abrupt addition of alkaline solution and by a continuous flow at 0.05 ml/s, 1.2 ml/s and 2.0 ml/s. Finally, the resulting powder from each sample was divided into 4 equal parts and heat-treated at 600 °C for different times: 0 h (untreated), 5 h, 10 h and 20 h. Using X-ray diffraction, two crystalline phases were identified (cobalt ferrite and hematite) and the corresponding average crystal size was calculated. Magnetic measurements were performed as a function of the applied magnetic field at 5 K and at 300 K resulting in great differences if compared the studied samples. The magnetizations as a function of temperature with a constant applied field at field-cooled and zero field-cooled regimes were performed for better understanding of resulting materials. Thus, magnetic measurements were efficient and highly sensitive to detect secondary-phase effects in magnetic compounds.
      PubDate: 2022-05-01
       
  • Optimized power generation in solar using carbon substrate for reduced
           greenhouse gas effect

    • Abstract: Abstract Traditionally, power is produced through non-renewable energy sources which has a major drawback of greenhouse gas emission effecting the climatic conditions and ozone layer. In this paper, carbon substrate-deposited solar cell for improved power generation in reducing greenhouse gas effects are discussed with various analysis. Poly-crystalline solar cells are etched with carbon substrate for analysis. The same are compared with silicon carbide-etched solar cells. Scanning electron microscopy (SEM) analysis is carried out to show the variations in the cell structure. Electrical analysis is also carried out to show the performance difference in voltage and overall efficiency of the cell.
      PubDate: 2022-05-01
       
  • Green TiO2–ZnO nanocomposite stimulator for the growth of Solanum
           lycopersicum in aquaculture

    • Abstract: Abstract The current study is focused on the green synthesis of TiO2–ZnO nanocomposite using Allium sativum leaf extract as a capping and reducing agent. It describes a unique application of green synthesized TiO2–ZnO nanocomposite in the soil-less water culture system that exhibits a significant influence on the germination and growth of Solanum lycopersicum plant. Here, Hogland nutrient solution was employed as a substitute for soil in the water culture system, which is used as the nutrient medium. Different concentrations of green synthesized TiO2–ZnO nanocomposites (10, 20, 30, 50, 100, 200, and 300 mg/L) compared to the control system were applied to investigate the growth of S. lycopersicum. The experimental investigation shows that a particular minimum concentration of the TiO2–ZnO nanocomposites (20 mg/L) in the Hogland nutrient solution shows the overall effective germination and growth for the S. lycopersicum. The synthesized sample was characterized with several spectroscopic and microscopic techniques: XRD, FESEM, EDS, XPS, TEM, BET, Raman, FTIR, and UV–Visible spectroscopy. The XRD pattern ensures the composition of anatase TiO2 and ZnO in the nanocomposite. The calculated average crystallite size 4.58 nm is comparable to the particle sizes (4–13 nm) as indicated by HR-TEM. FESEM displays the spherical shapes of nanostructures. EDS and XPS indicate the Ti, Zn, O as elemental compositions of the nanocomposite. The BET exhibits mesoporous nanostructures with a larger specific surface area of 133.824 m2/g. A larger surface area indicates greater adsorption of nutrients, can act as nutrient carriers, thus stimulates nutrient transportation and influences plants’ growth.
      PubDate: 2022-05-01
       
  • Engineering of combination drug delivery of pH/reduction response
           potential nanocarrier for the treatment of liver cancer

    • Abstract: Abstract Combination cancer therapy may be facilitated using a nanoparticle-based drug delivery system. However, the therapeutic efficiency of cancer nanomedicines is reduced due to poor drug release into the cancer cells. To the treatment of liver malignancy, a PEGylated poly(α-lipoic acid) copolymer with mPEG-αPLA was constructed and exploited as a dual reduction/pH response nanocarrier to delivery of capsaicin (CAP) and doxorubicin (DOX). Due to their self-assembly in an aqueous solution, the mPEG-αPLA amphiphilic polymers could be effectively encapsulated on CAP and DOX to synthesize CAP and DOX co-loaded nanomaterials (CAP/DOX@NPs). After being prepared, the CAP/DOX@NPs released more CAP and DOX in response to reduction and acid stimuli than those left undamaged. According to the results of flow cytometry and confocal laser scanning microscopy, the HepG2 liver cancer cells rapidly absorbed the dual-drug-loaded nanoparticles and released drugs intracellularly. As a result, in HepG2 cells, CAP/DOX@NPs promoted increased cell death and had synergistic therapeutic effects. In biochemical models such as acridine orange and ethidium bromide (AO/EB and nuclear DAPI staining), results were demonstrating the nanoparticles effectively induce apoptosis in HepG2 liver cancer cells. Moreover, in vivo systemic toxicity outcomes shown that the CAP/DOX@NPs could be quickly excreted from the body with no apparent toxicity signs. Overall, these findings demonstrate that the suggested technique for treating liver cancer with a dual-response nanocarrier based on mPEG-αPLA copolymer is promising.
      PubDate: 2022-05-01
       
  • Ecofriendly sustainable synthetized nano-composite for removal of heavy
           metals from aquatic environment

    • Abstract: Abstract The toxicity of heavy metals in the aquatic environment is a serious challenge to the global community. Even at low concentrations, heavy metals have a cumulatively destructive effect on living organisms in the aquatic environment. Biomass wastes have been investigated for heavy metals removal in the published literature; however, the low performance and capacity of the biomass represents a drawback towards effective application. Therefore, in this study, biomass waste such as corn leaves that have low cost is investigated as a precursor for eco-friendly sustainable nanostructured composite. In this research, several experiments have been conducted focusing on upgrading the capacity of the bioresource for removing heavy metals from the aquatic environment. In addition to low-cost biomass material, nanomaterials such as zinc oxide represents an attractive combination for effective removing heavy metals such as iron and nickel ions. Characterization of the synthesized composite material was conducted using XRD–FESEM-mapping and EDX–HRTEM and SAED–Zeta size and Zeta potential. Moreover, studying the efficiency of synthesized nano-composite for heavy metals ions adsorption of iron and nickel ions shows an outstanding increase of performance. The results suggest that adding nanomaterial to biomass matter and obtaining a composite at nanosize, enables the increase of the adsorption efficiency of heavy metals.
      PubDate: 2022-05-01
       
  • Investigation on the performance improvement of household refrigeration
           system using R-134a refrigerant blended with ceria nano additives

    • Abstract: Abstract Household energy consumption increases day by day because of the civilization and luxury life. In case of household refrigerator, the compressor consumes more energy. There is possibility to reduce the compressor work by increasing the heat transfer rate of refrigerant using nano-additives. Hence, the aim of the present work is to improve the performance of the household refrigerator using nano-additive refrigerant. Ceria nanoparticles (CeO2) have the potential to transfer more heat as it has higher thermal conductivity. In this research work, four types of refrigerant were prepared namely R0 (R134a), R1 (R134a + 0.05 vol% CeO2), R2 (R134a + 0.10 vol% CeO2) and R3 (R134a + 0.15 vol% CeO2) and the performance of the household refrigerator was studied using the aforementioned refrigerants. Experimental results showed that the thermal conductivity of R0 improved with the addition of CeO2 and the R3 refrigerant displayed the higher thermal conductivity of 0.057 W/mK. Further, the COP of the refrigeration system was greatly improved when using R3 (R134a + 0.15 vol% CeO2) refrigerant, which is 7.6% greater than the COP of R0 refrigerant. Moreover, the suction and delivery characteristics were enhanced while using CeO2 blended refrigerant. The results show the R3 refrigerant had the lowest compression ratio of 4.4, which was 6.03% lower than the compression ratio of R0 refrigerant. In addition, a significant enhancement in volumetric and isentropic efficiency was observed as 91.53 and 61.98%, respectively.
      PubDate: 2022-05-01
       
  • Electrochemical and dynamic mechanical properties of polyurethane
           nanocomposite reinforced with functionalized TiO2–ZrO2 nanoparticles in
           automobile industry

    • Abstract: Abstract Polymer coatings have been widely used in the automobile industry for the corrosion protection of metallic materials. However, the failures of the polymer materials are caused by the extensive exposure of the coated steel to the aggressive electrolytes. To enhance the protective performance of the polymer coatings, functionalized nanoparticles are added to the polymers. The 2-aminothiazole (AT) modified TiO2–ZrO2 nanoparticles examined by Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy/energy-dispersive X-ray analysis (SEM/EDX), transmission electron microscopy (TEM), and X-ray diffractometry (XRD) were added to polyurethane (PU). The synthesized PU–AT/TiO2–ZrO2-coated specimen was studied by scanning electrochemical microscopy (SECM), potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) for their anti-corrosion and mechanical behaviours. EIS studies revealed excellent protection behaviour for the PU–AT/TiO2–ZrO2-coated steel in natural seawater. The coating resistance of the PU–AT/TiO2–ZrO2 nanocomposite was found to be 1970.17 kΩ.cm2, whereas lower coating resistance was observed for the pure polyurethane-coated steel (62.17 kΩ.cm2. It is found that the coating resistance of PU–AT/TiO2–ZrO2 nanocomposite is over 48% higher than that of the PU coating. The measured current by SECM investigation over the PU–AT/TiO2–ZrO2 nanocomposite coating was very low (1.4 nA) in comparison with the PU coating (6.1 nA). The surface morphological studies of the coated steel by SEM/EDX analysis and X-ray diffraction (XRD) analysis revealed that the TiO2–ZrO2 nanoparticles were enriched at the corrosion products which prevented corrosion initiation processes. The enhanced dynamic mechanical properties were noticed for PU–AT/TiO2–ZrO2 coating when the concentration of nanoparticles was 3 wt%. However, there was a decrease in their mechanical properties beyond 3 wt% because of the aggregation of nano-TiO2–ZrO2 particles in the PU matrix. The resulting PU–AT/TiO2–ZrO2 formulation exhibits an excellent hydrophobic behaviour (WCA: 116.9º). Therefore, it was concluded from the investigations that the newly synthesized PU–AT/TiO2–ZrO2 nanocomposite provided excellent barrier, mechanical, and hydrophobic properties due to the addition of AT/TiO2–ZrO2 nanoparticles to the polyurethane which prevented the degradation of materials and helped to prolong the life of the coated steel.
      PubDate: 2022-05-01
       
  • A novel direct-driven triboelectric–electromagnetic hybridized wave
           energy converter for buoy power supply

    • Abstract: Abstract Ocean buoys are the main equipment for obtaining ocean hydrological information. The lack of efficient and reliable power supply is one of the main technical bottlenecks that limit its long-term stable operation. In this paper, the BUOY-41 surface drifting buoy is taken as an application object, and a novel wave energy converter that can be embedded in the buoy is designed. The novel direct-driven triboelectric–electromagnetic hybridized wave energy converter (DTEWEC) mainly includes triboelectric nanogenerator (TENG) unit and electromagnetic generator (EMG) unit. First, the working principles and basic theories of the two generators were explained. Second, the COMSOL software was used to analyze the influence law of DTEWEC’s main structural parameters on power generation performance, and the optimal structural parameters were preliminarily determined. Then, the STAR-CCM+ software was used to analyze the hydrodynamic characteristics of BUOY-41, and its motion response was input to the above two units. Finally, the performance characteristics of DTEWEC under optimal wave conditions were obtained. The results show that the maximum power density of TENG unit can reach 7.68 W/m2, and the maximum power of each phase of EMG unit which has three-phase coil group structure is 59.4 mW, 47.2 mW, and 50.2 mW, respectively. The research in this paper shows that the DTEWEC can be used as a sustainable power supply component of the ocean buoy to realize the autonomous power supply, which can effectively increase the endurance time and operational reliability.
      PubDate: 2022-05-01
       
  • Field-effect BJT: an adaptive and multifunctional nanoscale transistor

    • Abstract: Abstract Nano-electronic integrated circuit technology is exclusively based on MOSFET transistor due to its scalability down to the nanometer range. On the other hand, bipolar junction transistor (BJT), which provides unmatched analog characteristics and frequency response, cannot be scaled to nanometer regime without the loss of transistor action. Here a versatile nanoscale transistor is introduced that provides identical BJT behavior and expands its capabilities. The new transistor uses CMOS fabrication technology and creates BJT’s emitter, base, and collector via electric fields. By allowing carrier modulation during operation, its current gain can be changed at least by several orders of magnitude. This property introduces novel adaptive, variable gain, and programmable analog modules into existing electronic circuit design and manufacturing. Regular BJT behavior in various confiurations are obtained, the common-emitter presented here indicates an ideality factor of 1.09 for forward biased emitter–base diode, a Gummel plot similar to regular BJT, and a current amplification factor that can change by 6 orfers of magnitude by varying gate voltages. A NOT gate version of this device with the critical dimension of 7 nm operates at 730 GHz, and its three-stage ring oscillator exhibits a frequency of 240 GHz. With proper gate biasing, it can also operate as a nanoscale MOSFET, easily alleviating short-channel effects.
      PubDate: 2022-05-01
       
 
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