-
21
Eel and Grouper Optimizer improvement three-stage algorithm for photovoltaic MPPT
Published 2025-03-01“…Photovoltaic power generation system is extremely sensitive to the change of illumination, when it is obscured by dust, cloud shadows, etc., it will produce a power voltage characteristic curve with multi-peak characteristics, and the traditional Maximum Power Point Tracking (MPPT) technology will fall into the local optimal solution when it meets multiple peaks. …”
Get full text
Article -
22
‘Why is it that a photograph always looks clear and sharp, — not at all like a Turner?’ John Ruskin & Perceptual Aberration
Published 2020-06-01“…Photography either exaggerates shadows, or loses detail in the lights . . . and misses certain of the utmost subtleties of natural effect (which are often the things that Turner has chiefly aimed at,) while it renders subtleties of form which no human hand could achieve’. …”
Get full text
Article -
23
Pulmonary cavernous hemangioma: a case report
Published 2025-01-01“…In summary, the thoracic surgeon could not rule out the possibility of lung malignant tumors and chose to proceed with surgical excision to secure a conclusive diagnosis. …”
Get full text
Article -
24
Robust Identification of Vegetation Change Using Shapelet-Based Temporal Segmentation of Landsat Time-Series Stacks: A Case Study in the Qilian Mountains
Published 2025-01-01“…A temporal sliding window-based anomaly checking procedure is applied to the annual maximum composite of spectral vegetation indices in the growing season to remove the unmasked clouds, cloud shadows, and other temporary changes. Then, an iterative shapelet searching algorithm is performed on each given time series trajectory to filter out all atypical subseries. …”
Get full text
Article -
25
Optimized Design of 3D Spatial Images Based on Kalman Filter Equation
Published 2021-01-01“…This paper takes the advantageous ability of Kalman filter equation as a means to jointly realize the accurate and reliable extraction of 3D spatial information and carries out the research work from the extraction of 3D spatial position information from multisource remote sensing optical stereo image pairs, recovery of 3D spatial structure information, and joint extraction of 3D spatial information with optimal topological structure constraints, respectively. …”
Get full text
Article -
26
Relationship between Tectonism and Composition and Pore Characteristics of Shale Reservoirs
Published 2020-01-01“…It is the presence of pressure shadows around the rigid grains that can resist tectonic extrusion and protect some organic pores. …”
Get full text
Article -
27
DETERMINATION OF GRANULOMETRIC COMPOSITION OF PULVERIZED COAL BY AUTOMATED SYSTEM
Published 2015-08-01“…The method of granulometric composition determination of dry powders by a shadow method in the automated system of determination of quantitative structure is described. …”
Get full text
Article -
28
METHODS OF REVEALING OF DISCONTINUITY FLAWS AND CONTROL OF THE CAST IRONS STRUCTURE USING BODY AND HEAD WAVES
Published 2004-11-01“…The new principle schemas of ultrasonic measurings, constructions of acoustic transformers are presented and their analysis is carried out. The results of investigation of influence of graphite form on speed of ultrasound are given and also some peculiarities the surface und subsurface faults reveal by shadow way.…”
Get full text
Article -
29
Activities of Detective Units in the National Police of Ukraine: Current Status and Perspectives
Published 2021-07-01“…However, there are also positive points: first of all, several thousand private detective agencies and private detectives must come out of the shadow, pay taxes, report to the police about criminal offenses that are being prepared or committed, provide intelligence, etc. …”
Get full text
Article -
30
Tracking Outflow Using Line Locking (TOLL). II. Large Line-locking Web Identified in Quasar J151352+085555
Published 2025-01-01“…A preliminary statistical analysis demonstrates that the shadowed clouds tend to have similar ionization states compared to the shadowing ones. …”
Get full text
Article -
31
Influence of Geometry and Boundary Conditions in Area of the Cohesion between Materials on the Reflection of an Ultrasonic Beam. Part 2. Features of Experimental Simulation
Published 2021-12-01“…The aim of the work was to experimentally simulate ultrasonic scattering by samples of proposed defect simulator designs with discretely and smoothly varying boundary conditions correlating with the phase response of longitudinal waves during their interaction with the defect boundary of contacting materials.A brief analysis of some methods and means for experimental simulation of the volume and surface wave scattering at the interfaces of contacting materials as applied to improvement of method of detection of poorly detectable adhesion defects of materials proposed earlier was carried out. For this purpose an immersion installation working in the shadow mode and allowing for simulation the spatial fields of scattered longitudinal waves at inhomogeneous or defective adhesion boundaries was developed and constructed. …”
Get full text
Article -
32
Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links
Published 2014-01-01“…Many authors model the path loss of the VMISO link as though the elements in the virtual antenna array are colocated, even though they are spread out. In this paper, we show that the spreading causes a signal-to-noise-ratio (SNR) penalty of up to 3 dB. …”
Get full text
Article -
33
Une transition économique inattendue : vers le « cupidalisme » ?
Published 2013-12-01“…Originating in post-communist economies in transition asset grabbing has spread throughout the global economy through public assets transferred to private owners (privatisations), predatory real assets stripping by finance, the emergence of shadow finance (of which shadow banking), namely in all the black holes of global finance (tax and judiciary havens). …”
Get full text
Article -
34
Successful Outcome in Posttraumatic Superficial Femoral Artery Pseudoaneurysm following Distal Femur Fracture
Published 2023-01-01“…Hence, we advocate to look out for vascular injury in distal femur fractures at a delayed presentation.…”
Get full text
Article -
35
SCOP qui peut !
Published 2022-12-01“…In the shadow of the 1968s, the 1980s was a period rich in workers' experiences that are still little known. …”
Get full text
Article -
36
Measurement and modeling of indoor off-body channel in the 9.5~10.5 GHz band
Published 2022-06-01“…In order to explore the wireless propagation characteristics of high-frequency indoor off-body channel, off-body channel measurements were carried out on multiple typical indoor scenes in the 9.5~10.5 GHz frequency band.In terms of large-scale fading, through studying the path loss, it is found that the human body occlusion factor has a sine function relationship with the rotation angle, and a negative exponential relationship with the distance between the receiver and transmitter.Therefore, a new type of off-body channel loss model related to distance and angle was established, and the accuracy and applicability of the new model was proved based on the shadow fading.In terms of small-scale fading, by analyzing the linear correlation between path loss and root mean square (RMS) delay spread, a new type of RMS delay spreading model related to distance and angle was obtained.It proves that the greater the distance between the antenna at the transceiver end and the occlusion factor caused by the rotation of the human body, the more severe the path loss and multipath fading.The new channel model can be used to design the off-body link of the internet of things environment body area network (BAN), providing a theoretical and practical basis for the future design of indoor wireless communication systems.…”
Get full text
Article -
37
Corruption as a Problem of Political Theory and Political Practice
Published 2015-12-01“…The article gives the evolution of the term "corruption", pointing out current aspects of the term. The article provides positive and negative results of corruption, gives resume. …”
Get full text
Article -
38
Modeling Simultaneous Multiple Fracturing Using the Combined Finite-Discrete Element Method
Published 2018-01-01“…Several tests are carried out to validate the application of FDEM-Fluid in hydraulic fracturing simulation. …”
Get full text
Article -
39
To the problem of optimization of criteria for evaluating the effectiveness of providing the national security of the State
Published 2022-03-01“…It has been argued that the evaluation of the effectiveness of Ukrainian national security is the activities of authorized entities carried out in the prescribed manner, which aims to establish the extent to which measures implemented by the state in the relevant direction, as well as related financial, material technical and human costs, meet the goal. …”
Get full text
Article -
40
The Performance of a New Heuristic Approach for Tracking Maximum Power of PV Systems
Published 2022-01-01“…This paper presents a new heuristic method for maximum power point tracking (MPPT) in PV systems under normal and shadowing situations. The proposed method is a modification of the original queen honey bee migration (QHBM) to shorten the computation time for the maximum power point (MPP) in PV systems. …”
Get full text
Article