Results 41 to 50 of about 50,477 (287)

Dielectric spectroscopy of plant protoplasts

Biophysical Journal, 1992
The relative permittivity and conductivity of the mesophyll protoplasts isolated from Brassica campestris leaves and Tulipa gesneriana petals were measured over a frequency range from 1kHz to 500 MHz.These protoplasts showed a broad dielectric dispersion, which was composed of three subdispersions, termed beta(1)-, beta(2)-, and beta(3)-dispersion in ...
Asami, Koji, Yamaguchi, Tohru
openaire   +2 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Dielectric spectroscopy of CuInSe2 single crystals

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2016
The results of high-frequency dielectric measurements with obtained α-CuInSe2 single crystals provided an opportunity to determine the mechanisms of dielectric losses and charge transport, and also to evaluate the density of states at the Fermi level ...
S.N. Mustafaeva
doaj   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Bioimpedance spectroscopy of breast phantoms

Journal of Electrical Bioimpedance
This article is devoted to the study of the possibility of detecting breast tumors, which can be used for early diagnostics of breast cancer, by the dielectric impedance spectroscopy method.
Kuzmin Andrey, Baranov Viktor
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Detecting adulteration in mustard oil using low-frequency dielectric spectroscopy

Research in Agricultural Engineering
This paper presents a dielectric spectroscopy approach for analysing the quality of food products. This study aimed to detect the adulteration in mustard oil using dielectric spectroscopy in the 1 to 10 MHz frequency range at a temperature of 30 to 50 °C.
Venkatesh Mishra, Satyendra Pratap Singh, Sumit Kaur Bhatia, Vishal Singh Chandel, Rajiv Manohar   +4 more
doaj   +1 more source

Non-linear dielectric spectroscopy of microbiological suspensions

BioMedical Engineering OnLine, 2009
Background Non-linear dielectric spectroscopy (NLDS) of microorganism was characterized by the generation of harmonics in the polarization current when a microorganism suspension was exposed to a sinusoidal electric field.
Felice Carmelo J, Treo Ernesto F
doaj   +1 more source

Phase structure, bond traits, and intrinsic dielectric response of NiTa2O6–TiO2 microwave dielectric ceramics investigated by bond theory and vibrational spectroscopy

Journal of Materials Research and Technology, 2023
The present work reports the synthesis and structure-property of a tri-rutile Ni0.5Ti0.5TaO4 microwave dielectric ceramic. It is found that the Ni0.5Ti0.5TaO4 ceramic belongs to the solid solution of tetragonal tri-rutile NiTa2O6.
Hongyu Yang, Liang Chai, Chengzhi Xu, Zhimin Li, Zhichao Hu, Mengjiang Xing, Enzhu Li   +6 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source