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  Subjects -> PHYSICS (Total: 780 journals)
    - ELECTRICITY AND MAGNETISM (9 journals)
    - MECHANICS (19 journals)
    - NUCLEAR PHYSICS (48 journals)
    - OPTICS (90 journals)
    - PHYSICS (565 journals)
    - SOUND (20 journals)
    - THERMODYNAMICS (29 journals)

PHYSICS (565 journals)                  1 2 3 4 5 6 | Last

Acta Acustica united with Acustica     Full-text available via subscription   (Followers: 7)
Acta Mechanica     Hybrid Journal   (Followers: 16)
Advanced Composite Materials     Hybrid Journal   (Followers: 51)
Advanced Functional Materials     Hybrid Journal   (Followers: 41)
Advanced Materials     Hybrid Journal   (Followers: 227)
Advanced Science Focus     Free   (Followers: 1)
Advances in Condensed Matter Physics     Open Access   (Followers: 6)
Advances in Exploration Geophysics     Full-text available via subscription   (Followers: 3)
Advances in Geophysics     Full-text available via subscription   (Followers: 5)
Advances in High Energy Physics     Open Access   (Followers: 11)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 3)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 14)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 16)
Advances in OptoElectronics     Open Access   (Followers: 3)
Advances In Physics     Hybrid Journal   (Followers: 7)
Advances in Physics Theories and Applications     Open Access   (Followers: 8)
Advances in Remote Sensing     Open Access   (Followers: 10)
AIP Advances     Open Access   (Followers: 5)
AIP Conference Proceedings     Full-text available via subscription   (Followers: 2)
American Journal of Applied Sciences     Open Access   (Followers: 30)
American Journal of Condensed Matter Physics     Open Access   (Followers: 4)
American Journal of Signal Processing     Open Access   (Followers: 9)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 2)
Annalen der Physik     Hybrid Journal   (Followers: 3)
Annales Geophysicae (ANGEO)     Open Access   (Followers: 4)
Annales Henri PoincarĂ©     Hybrid Journal   (Followers: 1)
Annales UMCS, Physica     Open Access  
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 4)
Annals of Physics     Hybrid Journal   (Followers: 3)
Annals of West University of Timisoara - Physics     Open Access  
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 1)
Annual Review of Analytical Chemistry     Full-text available via subscription   (Followers: 9)
Annual Review of Condensed Matter Physics     Full-text available via subscription   (Followers: 1)
Annual Review of Materials Research     Full-text available via subscription   (Followers: 4)
APL Materials     Open Access   (Followers: 6)
Applied Composite Materials     Hybrid Journal   (Followers: 37)
Applied Physics A     Hybrid Journal   (Followers: 10)
Applied Physics Frontier     Open Access   (Followers: 2)
Applied Physics Letters     Hybrid Journal   (Followers: 24)
Applied Physics Research     Open Access   (Followers: 5)
Applied Physics Reviews     Hybrid Journal   (Followers: 9)
Applied Radiation and Isotopes     Hybrid Journal   (Followers: 5)
Applied Remote Sensing Journal     Open Access   (Followers: 11)
Applied Spectroscopy     Full-text available via subscription   (Followers: 16)
Applied Spectroscopy Reviews     Hybrid Journal   (Followers: 3)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (Followers: 3)
Asia Pacific Physics Newsletter     Hybrid Journal  
ASTRA Proceedings     Open Access  
Astronomy & Geophysics     Hybrid Journal   (Followers: 3)
Astrophysical Journal Letters     Full-text available via subscription   (Followers: 3)
Astrophysical Journal Supplement Series     Full-text available via subscription   (Followers: 3)
Atoms     Open Access  
Attention, Perception & Psychophysics     Full-text available via subscription   (Followers: 10)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Axioms     Open Access  
Bangladesh Journal of Medical Physics     Open Access  
Bauphysik     Hybrid Journal   (Followers: 1)
Biomaterials     Hybrid Journal   (Followers: 35)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 16)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 15)
Biophysical Reviews     Hybrid Journal  
Biophysical Reviews and Letters     Hybrid Journal   (Followers: 3)
BMC Biophysics     Open Access   (Followers: 7)
BMC Nuclear Medicine     Open Access   (Followers: 5)
Brazilian Journal of Physics     Hybrid Journal  
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Bulletin of Materials Science     Open Access   (Followers: 41)
Bulletin of the Atomic Scientists     Full-text available via subscription   (Followers: 4)
Bulletin of the Lebedev Physics Institute     Hybrid Journal   (Followers: 1)
Bulletin of the Russian Academy of Sciences: Physics     Hybrid Journal  
Caderno Brasileiro de Ensino de FĂ­sica     Open Access  
Canadian Journal of Physics     Full-text available via subscription   (Followers: 1)
Case Studies in Nondestructive Testing and Evaluation     Open Access  
Cells     Open Access   (Followers: 1)
CERN courier. International journal of high energy physics     Free   (Followers: 1)
Chinese Journal of Astronomy and Astrophysics     Full-text available via subscription   (Followers: 1)
Chinese Journal of Chemical Physics     Hybrid Journal   (Followers: 1)
Chinese Physics B     Full-text available via subscription  
Chinese Physics C     Full-text available via subscription  
Chinese Physics Letters     Full-text available via subscription  
Cogent Physics     Open Access  
Cohesion and Structure     Full-text available via subscription   (Followers: 2)
Colloid Journal     Hybrid Journal   (Followers: 2)
Communications in Computational Physics     Full-text available via subscription  
Communications in Mathematical Physics     Hybrid Journal   (Followers: 2)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 3)
Communications in Theoretical Physics     Full-text available via subscription   (Followers: 1)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 108)
Composites Part B : Engineering     Hybrid Journal   (Followers: 138)
Computational Astrophysics and Cosmology     Open Access  
Computational Condensed Matter     Open Access  
Computational Materials Science     Hybrid Journal   (Followers: 21)
Computational Mathematics and Mathematical Physics     Hybrid Journal   (Followers: 1)
Computational Particle Mechanics     Hybrid Journal  
Computational Science and Discovery     Full-text available via subscription  
Computer Physics Communications     Hybrid Journal   (Followers: 1)
Contemporary Concepts of Condensed Matter Science     Full-text available via subscription  
Contemporary Physics     Hybrid Journal   (Followers: 12)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 3)
Contributions to Plasma Physics     Hybrid Journal   (Followers: 2)

        1 2 3 4 5 6 | Last

Journal Cover   Advances in Natural Sciences: Nanoscience and Nanotechnology
  [16 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2043-6254 - ISSN (Online) 2043-6262
   Published by Institute of Physics (IOP) Homepage  [70 journals]
  • A 2D analytical cylindrical gate tunnel FET (CG-TFET) model: impact of
           shortest tunneling distance

    • Authors: S Dash; G P Mishra
      First page: 035005
      Abstract: A 2D analytical tunnel field-effect transistor (FET) potential model with cylindrical gate (CG-TFET) based on the solution of Laplace’s equation is proposed. The band-to-band tunneling (BTBT) current is derived by the help of lateral electric field and the shortest tunneling distance. However, the analysis is extended to obtain the subthreshold swing (SS) and transfer characteristics of the device. The dependency of drain current, SS and transconductance on gate voltage and shortest tunneling distance is discussed. Also, the effect of scaling the gate oxide thickness and the cylindrical body diameter on the electrical parameters of the device is analyzed.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-05-14T23:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • Performance analysis of undoped cylindrical gate all around (GAA) MOSFET
           at subthreshold regime

    • Authors: B Jena; K P Pradhan, S Dash, G P Mishra, P K Sahu S K Mohapatra
      First page: 035010
      Abstract: In this work the sensitivity of process parameters like channel length ( L ), channel thickness ( t Si ), and gate work function ( ? M ) on various performance metrics of an undoped cylindrical gate all around (GAA) metal-oxide-semiconductor field effect transistor (MOSFET) are systematically analyzed. Undoped GAA MOSFET is a radical invention as it introduces a new direction for transistor scaling. In conventional MOSFET, generally the channel doping concentration is very high to provide high on-state current, but in contrary it causes random dopant fluctuation and threshold voltage variation. So, the undoped nature of GAA MOSFET solves the above complications. Hence, we have analyzed the electrical characteristics as well as the analog/RF performances of undoped GAA MOSFET through Sentaurus device simulator.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-06-19T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • Effect of chemical functionalization groups on Zr 6 -AzoBDC to enhance H 2
           , CH 4 storage and CO 2 capture: a theoretical investigation

    • Authors: Khung M Trang; Hung Q Pham Nguyen-Nguyen Pham-Tran
      First page: 035011
      Abstract: Grand canonical Monte Carlo (GCMC) simulation combined with the ideal adsorbed solution theory (IAST) and a statistical method were utilized to investigate the effect of functional groups on zirconium oxide based metal-organic frameworks (MOFs) Zr 6 -AzoBDC (Zr 6 A) for the gases (H 2 , CH 4 ) adsorption property and CO 2 /CH 4 selectivity under low pressure. The results showed that phenyl groups containing nitrogen (pyridine, pyrimidine) and thiophene group enhance the gas affinity with MOFs, therefore increasing both gravimetric and volumetric uptake. In addition, this behavior can also cause significantly improved selective capture of CO 2 from CO 2 /CH 4 gas mixtures. Among functional groups studied, the sulfonic acid group can potentially improve CH 4 , CO 2 uptake and H 2 isosteric heat of adsorption. These findings would play a vital role in designing new materi...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-06-19T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • Trace detection of herbicides by SERS technique, using SERS-active
           substrates fabricated from different silver nanostructures deposited
           on silicon

    • Authors: Tran Cao Dao; Truc Quynh Ngan Luong, Tuan Anh Cao, Ngoc Hai Nguyen, Ngoc Minh Kieu, Thi Thuy Luong Van Vu Le
      First page: 035012
      Abstract: In this report we present the initial results of the use of different silver nanostructures deposited on silicon for trace detection of paraquat (a commonly used herbicide) using the surface-enhanced Raman scattering (SERS) effect. More specifically, the SERS-active substrates were fabricated from silver nanoparticles (AgNPs) deposited onto the flat surface of a silicon wafer (AgNPs@Si substrate), as well as on the surface of an obliquely aligned silicon nanowire (SiNW) array (AgNPs@SiNWs substrate), and from silver nanodendrites (AgNDs) deposited onto the flat surface of a silicon wafer (AgNDs@Si substrate). Results showed that with the change of the structure of the SERS-active substrate, higher levels of SERS enhancement have been achieved. Specifically, with the fabricated AgNDs@Si substrate, paraquat concentration as low as 1 ppm can be detected.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-06-19T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • Structural and photoluminescent properties of nanosized BaMgAl 10 O 17 :Eu
           2+ blue-emitting phosphors prepared by sol-gel method

    • Authors: Hao Van Bui; Tu Nguyen, Manh Cuong Nguyen, Trong An Tran, Ha Le Tien, Hao Tam Tong, Thi Kim Lien Nguyen Thanh Huy Pham
      First page: 035013
      Abstract: We report on the photoluminescent properties of Ba 0.9 Eu 0.1 MgAl 10 O 17 (BAM) phosphors in correlation with the host crystalline structures. The phosphors were synthesized by citrate sol-gel process, followed by a sintering and a reduction step, both at elevated temperatures. We found that the phosphors were amorphous when sintered at temperatures below 900 ?C. At 1000 ?C, the crystalline structure was mainly that of BaAl 2 O 4 phase. The BaMgAl 10 O 17 phase appeared at 1100 ?C, and became dominant with increasing temperature. At 1300 ?C, the BaAl 2 O 4 phase almost disappeared, and only BaMgAl 10 O 17 features were found. The luminescent characteristics of the phosphors were closely related to the structures of the host lattice. Under the same reduction conditions, the phosphors sintered at 1000 ?C showed the emission of both Eu 3+ and Eu 2+ . F...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-06-19T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • n-Hexane hydro-isomerization over promoted Pd/HZSM-5 catalysts

    • Authors: Thi Kim Thoa Dao; Cam Loc Luu
      First page: 035014
      Abstract: A series of Pd/HZSM-5 catalysts modified by various metallic species, including Co, Ni, Fe, Re, and Cu, was prepared by sequential impregnation. Contents of Pd and second metals in modified catalysts were 0.8 and 1.0 wt%, respectively. Physico-chemical characteristics of catalysts were investigated by nitrogen physi-sorption (BET), x-ray diffraction (XRD), transmission electron microscopy (TEM), ammonia temperature programmed desorption (NH 3 -TPD), temperature programmed reduction (TPR) and hydrogen pulse chemisorption (HPC). Coke formation was studied by the method of thermogravimetric analysis (TGA). The activities of catalysts in n-hexane isomerization were studied in a micro-flow reactor under atmospheric pressure at 250 ?C, and molar ratio of H 2 : n-hexane of 5.92. It was found that Co, Ni, Fe, and Re additives exhibited geometric and electronic effects toward Pd/HZSM-5 catalyst, leading to an enhancement of its activity and stability. On the contrary, Cu...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-06-19T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • Preparation of gold nanoparticles by microwave heating and application of
           spectroscopy to study conjugate of gold nanoparticles with antibody
           E. coli O157:H7

    • Authors: Vo Ke Thanh Ngo; Hoang Phuong Uyen Nguyen, Trong Phat Huynh, Nguyen Nguyen Pham Tran, Quang Vinh Lam Thanh Dat Huynh
      First page: 035015
      Abstract: Gold nanoparticles (AuNPs) of 15–20 nm size range have attracted attention for producing smart sensing devices as diagnostic tools in biomedical sciences. Citrate capped AuNPs are negatively charged, which can be exploited for electrostatic interactions with some positively charged biomolecules like antibodies. In this paper we describe a method for the low cost synthesis of gold nanoparticles using sodium citrate (Na 3 Ct) reduction in chloroauric acid (HAuCl 4 .3H 2 O) by microwave heating (diameter about 13–15 nm). Gold nanoparticles were functionalized with surface activation by 3-mercaptopropionic acid for attaching antibody. These nanoparticles were then reacted with anti- E. coli O157:H7, using N-hydroxy succinimide (NHS) and carbondimide hydrochloride (EDC) coupling chemistry. The product was characterized with UV-visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy and zeta potential. In addition, the binding of antibody-g...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-07-02T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • Dynamical equation determining plasmon energy spectrum in a metallic slab

    • Authors: Bich Ha Nguyen; Van Hieu Nguyen, Ngoc Hieu Nguyen Van Nham Phan
      First page: 035016
      Abstract: On the basis of general principles of electrodynamics and quantum theory we have elaborated the quantum field theory of plasmons in the plane metallic slab with a finite thickness by applying the functional integral technique. A hermitian scalar field φ was used to describe the collective oscillations of the interacting electron gas in the slab and the effective action functional of the system was established in the harmonic approximation. The fluctuations of this scalar field φ around the background one φ 0 corresponding to the extreme value of the effective action functional are described by the fluctuation field ζ generating the plasmons. The dynamical equation for this fluctuation field was derived. The solution of the dynamical equation would determine the plasmon energy spectrum.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-07-02T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • Impact of biogenic nanoscale metals Fe, Cu, Zn and Se on reproductive LV
           chickens

    • Authors: Quy Khiem Nguyen; Duy Dieu Nguyen, Van Kien Nguyen, Khac Thinh Nguyen, Hoai Chau Nguyen, Xuan Tin Tran, Huu Cuong Nguyen Duc Tien Phung
      First page: 035017
      Abstract: Using biogenic nanoscale metals (Fe, Cu, ZnO, Se) to supplement into diet premix of reproductive LV (a Vietnamese Luong Phuong chicken breed) chickens resulted in certain improvement of poultry farming. The experimental data obtained showed that the farming indices depend mainly on the quantity of nanocrystalline metals which replaced the inorganic mineral component in the feed premix. All four experimental groups with different quantities of the replacement nano component grew and developed normally with livability reaching 91 to 94%, hen’s bodyweight at 38 weeks of age and egg weight ranged from 2.53–2.60 kg/hen and 50.86–51.55 g/egg, respectively. All these farming indices together with laying rate, egg productivity and chick hatchability peaked at group 5 with 25% of nanoscale metals compared to the standard inorganic mineral supplement, while feed consumption was lowest. The results also confirmed that nanocrystalline metals Fe, Cu, ZnO and Se supplemented to chicken feed we...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-07-21T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
  • New method for fabricating nano oxide materials

    • Authors: M El-Hofy; M G El-Roby M Elkhatib
      First page: 035018
      Abstract: Nano Co 3 O 4 has been fabricated by co-precipitation of 0.1 M cobalt chloride with 0.1 M oxalic acid. During precipitation, high-frequency signal (9 V) was applied to the precipitation bath. Three samples were prepared at three different frequencies (0 Hz, 400 KHz, 1 MHz). The samples were dried at 120 °C for 20 h, and then calcined at 700 °C for 5 h to obtain the nano Co 3 O 4 . The prepared samples were investigated via XRD and TEM studies. According to the present data the particle size decreases from about 164 to 80 nm and the width of the particle size distribution decreases to half of its value with increasing frequency from 0 Hz to 1 MHz.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-07-21T00:00:00Z
      Issue No: Vol. 6, No. 3 (2015)
       
 
 
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