leaf model
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Author(s):  
Brad Meyer ◽  
Santosh B. M.

In this chapter, the authors explore the potential for actors across the scholarly publishing industry to increase revenues while decreasing costs by using AI and blockchain to capture and leverage many of the intangible assets continually being generated across the industry. Where these assets bring more value than cost, they are referred to as intellectual capital. Areopa's 4-Leaf Model is used to examine how organisations serving the scholarly publishing industry can gain increased future economic benefit from identifying their intellectual capital and then capturing, storing, and making it re-usable.


2021 ◽  
pp. 1-19
Author(s):  
Sergej Konstantinovich Grigorjev ◽  
Anton Alekseevich Bay ◽  
Dmitri Sergeevich Boykov ◽  
Gennadiy Alekseevich Bagdasarov ◽  
Yulia Sergeevna Sharova

Adaptive Mesh Refinement (AMR) is widely used today as a way to solve problems in the mechanics of continuous media, which makes it possible to increase the accuracy of the solution at an economical cost of computational resources. The paper presents new structures for storing and processing data for octree mesh adaptation in the leaf model paradigm. The current version of the technique implements a set of algorithms focused on applications to cluster-type parallel computing systems: dynamic mesh adaptation, data structure synchronization, and load balancing of the computing complex. The developed toolkit supports the functionality required for the implementation of various numerical models of continuum mechanics. As an example of possible applications, a difference schemes for heat conduction and gas dynamics using the developed AMR technique are discussed. The results of numerical experiments with model problems are presented.


Author(s):  
Vyacheslav Moiseyev

The article gives a definition of the organic form as an infinite-similar and self-similar structure, which is based on the increased unity of the whole and the part - holomereological symmetry. A model of plant forms as organic forms is proposed, which are based on spherocylinders – infinite-similar cylindrical volumes joined with hemispheres at their ends. The data on the golden wurf in the metric of plant stems are presented. The cirrus leaf model in MathCad is briefly described. The problem of the organic form, the form of living organisms, is a long-discussed topic in biology, in particular, in morphology. There is a lot of empirical material relating to the description of a huge variety of biological forms. However, until now, the laws of the organic form and its specificity, in comparison with the forms of inorganic bodies, continue to raise more questions than answers. It is clear that organic forms are special, they have their own laws and types of morphogenesis. But what is the essence of these features, what is the logic of their organization, all this is still largely unclear.


2020 ◽  
Vol 135 ◽  
pp. 113325 ◽  
Author(s):  
Kristof Coussement ◽  
Minh Phan ◽  
Arno De Caigny ◽  
Dries F. Benoit ◽  
Annelies Raes

Author(s):  
O. Scholz ◽  
F. Uhrmann ◽  
A. Wolff ◽  
K. Pieger ◽  
D. Penk

<p><strong>Abstract.</strong> The sugar beet is the primary source of sugar in Europe and large parts of the world. Tools to determine plant traits with high precision and high throughput are required for the breeding process to quantify the effects of genetic and environmental factors on plant development and yield. In this work, we propose a method to gain a limited yet significant set of descriptive parameters for sugar beet plants. Using optical methods, a 3D representation of each plant is generated and subsequently segmented manually. A customized leaf model developed specifically for sugar beet plants then models the leaves, yielding a vector of descriptive parameters for each leaf. The resulting data is then compared to plant assessments of the same plants performed by sugar beet experts in order to evaluate the viability of automatic plant assessment in the sugar beet breeding process.</p>


Agronomy ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 392 ◽  
Author(s):  
Nikolaos Katsoulas ◽  
Cecilia Stanghellini

Models for the evapotranspiration of greenhouse crops are needed both for accurate irrigation and for the simulation or management of the greenhouse climate. For this purpose, several evapotranspiration models have been developed and presented, all based on the Penman–Monteith approach, the “big-leaf” model. So, on the one hand, relatively simple models have been developed for irrigation scheduling purposes, and on the other, “knowledge–mechanistic” models have been developed for climate control purposes. These models differ in the amount of detail about variables, such as stomatal and aerodynamic conductance. The aim of this review paper is to present the variables and parameters affecting greenhouse crop transpiration, and to analyze and discuss the existing models for its simulation. The common sub-models used for the simulation of crop transpiration in greenhouses (aerodynamic and stomatal conductances, and intercepted radiation) are evaluated. The worth of the multilayer models for the simulation of the mass and energy exchanges between crops and air are also analyzed and discussed. Following the presentation of the different models and approaches, it is obvious that the different applications for which these models have been developed entail varying requirements to the models, so that they cannot always be compared. Models developed in different locations (high–low latitudes or for closed or highly ventilated greenhouses) are discussed, and their sensitivity to different parameters is presented.


2018 ◽  
Vol 9 (1) ◽  
pp. 235-238
Author(s):  
Tibor Tóth

Abstract The aim of this research is to find a solution that can contribute to the more widespread use of electric vehicles and, through development, promote the use of renewable energy sources. It aims to eliminate the disadvantages of electric vehicles, such as self-discharge, stationary charging and limited range. The focus is mainly a solar-powered solution, since small solar cells have already been implemented on the commercially available Nissan Leaf model to solve similar problems but with very little or no improvement. Encouraged by this attempt I have engineered a larger, more useful auxiliary solar cell system to improve the range of these vehicles.


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