Multidirectional Structures Research Articles

КОРПОРАТИВНЕ ВОЛОНТЕРСТВО В КОНТЕКСТІ СОЦІАЛЬНОЇ ВІДПОВІДАЛЬНОСТІ БІЗНЕСУ

he volunteering essence and its types were considered in the article. Defined, the multidirectional structures and multifunctionality of volunteering allow us to confirm its economic, environment and social value is being increased. In this work was discovered the connection between country’s economic growth which basic evaluating ratio serves as the gross national income per capita and population proportion that participated in volunteer activities. The Pearson correlation coefficient was calculated using two investigated indicators by the instance of 12 Europe countries in 2019. We gained a next result: rxy= 0,9475 it demonstrates an essential impact of citizen volunteering on economic increment. The mathematical economic model had been developed to concretise the correlation between investigated indicators. In the article was defined close and direct dependency between the economic indicator and the proportion of participated volunteers: the more people were being involved in volunteering activities, the more GNI per capita was being increasd. We defined that corporate volunteering was the most crucial part of business social responsibility. There were analysed the realization of main corporate volunteering activities in Ukraine, which of them at the present stage are blood donation, parks cleaning, gardening, medical organisation financial assistanse, ATO fighters support, the care of cancer-affected children. Employee volunteering advantages for different social entities such as business, employees and communities were determined. Corporate volunteering practises enhance company image and provide their stable competitive market through the improvong process of employee loyalty, rising the quantity of external stakeholders’ positive responses about a company, the increasing level of employee ethical conduct, motivation, team spirit, and initiative.

Demolding improvement for multidirectional nanostructures by nanoimprint lithography

Nanoimprint lithography (NIL) is one of the most promising nanofabrication techniques. Soft NIL has inherent advantages for conformal contact and uneven substrates. The demolding process of soft NIL is critical for obtaining high-fidelity replicas, especially of multidirectional nanostructures. In this paper, a demolding device for soft NIL is proposed to separate the polymer replica from the mold vertically and improve its quality. The finite element method was used to simulate the demolding process and calculate the developed stresses. The results demonstrated that no undesired plastic deformation was generated by the proposed demolding device. Successful fabrication of high-fidelity nanograting patterns verified the ability of the demolding device to improve the demolding quality of high-aspect-ratio and multidirectional structures fabricated by soft NIL.

Wavelet-like selective representations of multidirectional structures: a mammography case

The subject of this paper is selective representation of informative texture directionality in sparse domain of four verified multiscale transforms: contourlets, curvelets, tensor and complex wavelets. Directionality of linear or piecewise linear structures is a fundamental property in recognition of anatomical structures, i.e. separating the brain regions, directional characteristics of small coronary arteries. Another important example is spicule extraction in mammograms which is based on directional analysis of malignant spiculated lesions. The originality of the proposed experiments lies in optimization of multiscale wavelet-like representations to differentiate multidirectional structures of architectural distortions and spiculated masses in low-contrast noisy mammograms. For that purpose, the applied method consists in proposed phantom-based normalization and defined assessment criteria of directional information activity. The directional activity including both measures of angular resolution and angular selectivity was determined relative to increased background density and noise simulating reduced perceptibility of the analyzed objects. A numerically modeled phantom of multidirectional linear structures was used to assess subjectively and objectively the efficiency of nonlinear approximation for radially diverging spicule-like structures. Size and distribution of the structures simulates essential nature of spiculated signs of breast cancer. Basing on the experimental results, the complex wavelet domain was concluded to be the most effective tool to uniquely represent relevant information in the form of multidirectional piecewise linear structures in low-contrast noisy mammograms.

Three-dimensional flower-like Co(OH)2 microspheres of nanoflakes/nanorods assembled on nickel foam as binder-free electrodes for High performance supercapacitors

Three-dimensional (3D) flower-like Co(OH)2 microspheres based on nanoflakes/nanorods are successfully assembled on nickel foam by a one-step hydrothermal method. The as-obtained Co(OH)2/Ni foam composites exhibit multidirectional structures with tertiary nanorods (0.5–1.2µm in length, 25–40nm in diameter) growing on the secondary nanoflakes (10µm in diameter) and forming a highly dense film on the Ni foam. The composites display superior supercapacitor performance with high specific capacitance (1350Fg−1 and 10.4Fcm−2 at 30mAcm−2) and excellent rate capability, suggesting its promising application as an efficient electrode for electrochemical capacitors.

消除水下激光图像混合噪音的软形态滤波算法

Besides the adoption of range-gated to eliminate the backscatter,another way to advance the performance of underwater laser imaging is denoising of the images.Soft-morphological was introduced based on the analysis of the characteristic of noise in the underwater laser range-gated images.The multidirectional structures and polarized soft transformation were designed to build a OC filter.Discrete DE algorithm was used to search the best value of repletion degree aiming at the speckle index and edge energy.The experiments show that the proposed algorithm is robust because of the ability to filter the noise and protect the edge at the same time.When compared to Lee filter and nonlinear weighted averaging multidirectional generalized morphological filter,the performance of the proposed algorithm which is universal at a certain extent is better.

Evolution of 3-dimensional tectonics in the lithosphere and metallogenesis of the Yanshan intracontinental orogenic belt, China

The Yanshan intracontinental orogenic belt of Northern China developed on the Archean-Paleoproterozoic cratonic basement is evidently different from those related to geosyncline closure, marginal subduction or collision of lithospheric plates. Three superstages of tectonic evolution of the lithosphere have been distinguished: (1) Superstage of cratonic basement (3800-1800 Ma) mainly consisting of the Archean-Paleoproterozoic metamorphic rock series with Luliangian movement occurred at the end of Paleoproterozoic, causing formation of the united Sino-Korea craton (with Yanshan as one of its northern parts). (2) Superstage of aulacogen and cratonic cover (1800-250 Ma) with wide rifting and fault subsidence, followed by depression and sedimentation on stable cratonic basement in Late Neoproterozoic-Paleozoic. (3) Superstage of the Meso-Cenozoic intracontinental orogenesis (250-0 Ma) began in Indosinian (Triassic) period, via Yanshanian (Jurassic-Cretaceous) period until Himalayan (Cenozoic) period. Each of the three superstages of tectonic evolution of the lithosphere was connected with different type of metallogenesis. Based on interpretation of geological and geophysical data in an area essentially between 35°∼50°N and 105°∼35°E, a 3-layer type of lithospheric structure has been distinguished in the Yanshan intracontinental orogenic belt. This 3-layer type consists of different tectonic framework at different depths, from crustal surface via whole crust to the lithospheric mantle. The lithospheric mantle is dominated by the NNE to N-S trending structures resulted from rheologic adjustment of upper mantle rocks due to interaction between Eurasia and the Pacific plates. structures with the The whole crust is dominated by the E-W, NE-NNE and associated NW-NNW trending structures with the E-W trending structural system often formed much earlier than the other structural systems. The NE-NNE structures formed in Mesozoic-Cenozoic, belonging to Pacific tectonic domain. And the NNW faults extend to deep crust, mainly formed in the Cenozoic and are often related to Himalayan continental rifting. The surface of the crust is characterized by multi-directional structures (E-W, N-S, NE, NEE, NNE, NW, NWW, The and tectonic rings on background of scissor-shaped tectonic frameworks, caused by complicated deformational processes of different periods, connected with tectonic upward propagation of fractures from deeper levels. A prominent relationship has been found in the control of ore clusters of gold and multi-metal associations by intersections of the east-west fracture zones with the NE-trending structures of Mesozoic metallogeny, revealed by density isolines of ore deposit distribution.