Results 31 to 40 of about 4,794,485 (241)

Establishment of A Simple and Efficient Agrobacterium-mediated Genetic Transformation System to Chinese Cabbage (Brassica rapa L. ssp. pekinensis)

open access: yesHorticultural Plant Journal, 2021
Chinese cabbage, belonging to Brassica rapa species, is an important vegetable in Eastern Asia. It is well known that Chinese cabbage is quite recalcitrant to genetic transformation and the transgenic frequency is generally low.
Xiaonan Li   +5 more
doaj   +1 more source

A New Frequency Transformer or Frequency Changer

open access: yesProceedings of the Institute of Radio Engineers, 1927
Alternating current having a frequency which is any fractional value of the frequency of a supplied current, can be obtained by means of a triode oscillator. The phenomenon seems to be due to the "attraction" of two nearly equal frequencies occurring in the triode circuit and to the non-linear characteristic of a triode.
openaire   +1 more source

An optical fibre-based frequency dissemination network for Australia

open access: yes, 2011
An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range ...
Luiten, A.   +9 more
core   +1 more source

Local Modal Frequency Improvement with Optimal Stiffener by Constraints Transformation Method

open access: yesApplied Sciences, 2021
Local modal vibration could adversely affect the dynamical environment, which should be considered in the structural design. For the mode switching phenomena, the traditional structural optimization method for problems with specific order of modal ...
Shenyan Chen   +4 more
doaj   +1 more source

Radio Photonic Systems for Measurement of Instantaneous Radio Frequency with Amplitude-phase Modulation of Optical Carrier

open access: yesJournal of Telecommunications and Information Technology, 2016
In this article questions related to the development instantaneous radio frequency measurement system based on application in them original ways of the amplitude-phase modulation transformation of single-frequency optical carrier by a radio signal in ...
Oleg Gennadyevich Morozov   +1 more
doaj   +1 more source

Frequency-resolved microscopic current density analysis of linear and nonlinear optical phenomena in solids

open access: yes, 2023
We perform a frequency-resolved analysis of electron dynamics in solids to obtain microscopic insight into linear and nonlinear optical phenomena. For the analysis, we first compute the electron dynamics under optical electric fields and evaluate the ...
Shunsuke A. Sato (9023654)
core   +1 more source

Bone Mineral Density After Contemporary Treatment for Acute Lymphoblastic Leukaemia: A Matched Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen   +10 more
wiley   +1 more source

Optimized rice transformation protocol for transformation of the blast susceptible Indica rice accession CO39

open access: yesCABI Agriculture and Bioscience, 2022
Background Many rice transformation protocols have been reported, but optimization is still required to ensure efficient transformation of specific rice accessions.
Julian R. Greenwood, Anna N. Glaus
doaj   +1 more source

Chemotherapy for Spinal Cord Intramedullary Pediatric Low‐Grade Glioma—A Systematic Literature Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko   +5 more
wiley   +1 more source

High Frequency Transformers for Solid-State Transformer Applications

open access: yesApplied Sciences, 2023
This paper focuses on the study of the high frequency transformer incorporated in solid- state transformers, specifically on the development of the steps that enable the design of an optimized high frequency transformer and its equivalent model based on the desired characteristics.
Santos, Nuno   +5 more
openaire   +3 more sources

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