Results 1 to 10 of about 161 (78)
Study of Efficiency Fractal Optical Modulator for insulator material by testing modulation transfer function [PDF]
مجلة علوم ذي قار, 2019 Chopper is an important component in optical system. It represents a device, which changes the angle between the coordinate and vision lines of the target for the electrical signal. The chopper modulates the optical signal by a frequency dependent on the
Mohammed L. Jabbar +1 more
doaj +9 more sources
A novel approach to the classification of terrestrial drainage networks based on deep learning and preliminary results on solar system bodies. [PDF]
Sci Rep, 2021 Several approaches were proposed to describe the geomorphology of drainage networks and the abiotic/biotic factors determining their morphology. There is an intrinsic complexity of the explicit qualification of the morphological variations in response to
Donadio C +5 more
europepmc +3 more sources
Dynamic Friction-Slip Model Based on Contact Theory
Machines, 2022 In ultra-precision positioning equipment, the positioning accuracy is affected by the friction characteristics, especially the pre-slip stage. At present, the research on friction mainly includes contact theory and the dynamic friction process.
Hui Wang +3 more
doaj +1 more source
Application of Homogenized Load‐Bearing Ring Hypothesis in Roadway Supporting
Shock and Vibration, Volume 2022, Issue 1, 2022., 2022 Artificial support system takes advantages of self‐bearing capacity of surrounding rock mass in roadway support, which is one of the important supporting ideas in modern times. The implementation way of an artificial support system is worthy of deep investigation.
Quntao Zhang +10 more
wiley +1 more source
New Phytologist, Volume 232, Issue 3, Page 973-1122, November 2021., 2021 Summary In the context of a recent massive increase in research on plant root functions and their impact on the environment, root ecologists currently face many important challenges to keep on generating cutting‐edge, meaningful and integrated knowledge.
Grégoire T. Freschet +39 more
wiley +1 more source
Digital Microscopy Assessment of Angiogenesis in Different Breast Cancer Compartments
BioMed Research International, Volume 2013, Issue 1, 2013., 2013 Background/Aim. Tumour angiogenesis defined by microvessel density (MVD) is generally accepted as a prognostic factor in breast cancer. However, due to variability of measurement systems and cutoffs, it is questionable to date whether it contributes to predictive outline.
Anca Haisan +7 more
wiley +1 more source
Computational and Mathematical Methods in Medicine, Volume 2012, Issue 1, 2012., 2012 Fractal dimension analysis (FDA) is modern mathematical method widely used to describing of complex and chaotic shapes when classic methods fail. The main aim of this study was evaluating the influence of photodynamic therapy (PDT) with cystein proteases inhibitors (CPI) on the number and morphology of blood vessels inside tumor and on increase of ...
Kamil Jurczyszyn +3 more
wiley +1 more source
Human development IV: The Living Cell has Information‐Directed Self‐Organisation
The Scientific World Journal, Volume 6, Issue 1, Page 1132-1138, 2006., 2006 In this paper, restricted to describe the ontogenesis of the cell, we discuss the processing of DNA through RNA to proteins and argue that this process is not able to transfer the information necessary to organize the proteins in the cell, but only to transfer the information necessary to form the shape of the proteins.
Søren Ventegodt +6 more
wiley +1 more source
A New Design of Fractal Optical Modulation
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017 In this paper it was designed a new fractal optical modulation by using a new iteration of fractal function, the result was analyzed by MTF evaluation, and it compared with results of normal optical modulation.
A. A . Mohammad +2 more
doaj
Down to the Bone: A Novel Bio-Inspired Design Concept. [PDF]
Materials (Basel), 2021 Buccino F +7 more
europepmc +1 more source