Log in

Relevant bibliographies by topics / Structural-positional number / Journal articles

To see the other types of publications on this topic, follow the link: Structural-positional number.

Journal articles on the topic 'Structural-positional number'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Structural-positional number.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Thavikulwat, Precha. "Recipes for Structural Fairness in Games." Simulation & Gaming 48, no. 5 (2017): 670–94. http://dx.doi.org/10.1177/1046878117719549.

Full text

Abstract:

Background. Although fairness is central to society and to games that are taken seriously, the structural aspect of fairness has not been addressed as a problem of games. Aim. To resolve the problem of structural fairness in multi-player, multi-episodic games, especially for business games that are transaction based, where sales result from individual transactions rather than from formulae that aggregate and allocate modeled-market demand. Method. Mathematics and examples are used to clarify positions, present proofs, and show application. Argument. Structural fairness is of three kinds: posit

APA, Harvard, Vancouver, ISO, and other styles

2

Hanahara, Kazuyuki, and Kaori Yamada. "Evaluation of Disassembling Process Inference Based on Positional Relations Matrix." Applied Sciences 15, no. 9 (2025): 4736. https://doi.org/10.3390/app15094736.

Full text

Abstract:

Disassembling is an important process in the maintenance, reparation, and disposal of mechanical as well as structural systems. More often than not, however, disassembling processes are not prepared in advance; we need to organize the disassembling process based on the obtained arrangement information of the constituent parts of the system. In this study, we deal with a disassembling process inference based on the positional relations matrix. On the basis of the positional relations matrix, the geometrical constraints among the parts can be expressed in a general form. The developed disassembl

APA, Harvard, Vancouver, ISO, and other styles

3

Barannik, Vladimir, Sergii Shulgin, Valerii Kozlovskyi, et al. "Method of recurrent truncated-positional coding video segments in uneven diagonal space." Radioelectronic and Computer Systems, no. 2 (May 25, 2023): 129–42. http://dx.doi.org/10.32620/reks.2023.2.11.

Full text

Abstract:

The subject of research in this article is methods of encoding transformed video segments to reduce their bit volume without loss of information integrity. The goal is to develop a technology for coding uneven diagonal sequences under the conditions of their arbitrary positioning in the transformant. Task: to justify the approach of creating new methods of encoding video segments, considering the features of the combinatorial configuration of transformants; to create a method of formatting the coordinate system of spectral components in an uneven diagonal direction; to develop a method of enco

APA, Harvard, Vancouver, ISO, and other styles

4

Wang, Carol Jian, and Meryl Nan Wang. "Marking Algorithms in Permutation Tableaux and Transformations on Linked Partitions." Mathematics 13, no. 8 (2025): 1335. https://doi.org/10.3390/math13081335.

Full text

Abstract:

In this paper, we focus on the internal structural characteristics of permutation tableaux and their correspondence with linked partitions. We begin by introducing new statistics for permutation tableaux, designed to thoroughly describe various positional relationships among the topmost 1s and the rightmost restricted 0s. Subsequently, we develop two marking algorithms for permutation tableaux, each from the perspective of columns and rows. Additionally, we introduce tugging and rebound transformations, which elucidate the generative relationship from original partitions to linked partitions.

APA, Harvard, Vancouver, ISO, and other styles

5

Grierosu, Irena Cristina, Iuliana Magdalena Starcea, Wael Jalloul, et al. "Particularities in the “Oldie but Goldie” Tc-99m DMSA Renography: A Retrospective Reference Centre Overview of 931 Children." Diagnostics 15, no. 8 (2025): 1025. https://doi.org/10.3390/diagnostics15081025.

Full text

Abstract:

Background/Objectives: The Tc-99m dimercaptosuccinic acid (DMSA) renal scan clearly images the renal cortex, highlighting functional tissue areas and indicating regions of renal scarring, infection, malformations, or other types of renal damage. To enhance the management of paediatric cases involving renal malformations and to reduce the incidence of chronic and progressive kidney diseases in “future adults”, our study aims to identify and categorise various renal anomalies. Methods: This has been achieved by analysing the Tc-99m DMSA renal scans of a large cohort of 931 children diagnosed wit

APA, Harvard, Vancouver, ISO, and other styles

6

Müller, C., M. Kadler, R. Ojha, et al. "TANAMI: Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry." Astronomy & Astrophysics 610 (February 2018): A1. http://dx.doi.org/10.1051/0004-6361/201731455.

Full text

Abstract:

Context. TANAMI is a multiwavelength program monitoring active galactic nuclei (AGN) south of − 30° declination including high-resolution very long baseline interferometry (VLBI) imaging, radio, optical/UV, X-ray, and γ-ray studies. We have previously published first-epoch8.4 GHz VLBI images of the parsec-scale structure of the initial sample. In this paper, we present images of 39 additional sources. The full sample comprises most of the radio- and γ-ray brightest AGN in the southern quarter of the sky, overlapping with the region from which high-energy (> 100 TeV) neutrino events have bee

APA, Harvard, Vancouver, ISO, and other styles

7

Barannik, V., S. Shulgin, D. Barannik, and R. Onyshchenko. "DYNAMIC ENCODING OF THE TRANSFORMER VIDEO IMAGES WITH REFINEMENT OF THE BASE SYSTEM." Information and communication technologies, electronic engineering 2, no. 2 (2022): 1–11. http://dx.doi.org/10.23939/ictee2022.02.001.

Full text

Abstract:

This article creates a method of dynamic encodiofng the sequence of video segments based on the adaptive update of the system fundamentals the structural positional basis. In this case, the processing of part of the components is carried out in one pass. It is shown that it is necessary to take into account new patterns that are inherent in the sequence of transformed segments. It is argued that the elimination of structural redundancy creates the conditions for additional reduction in the bit volume. It is substantiated that the increase in the volume of digital representation compressed vide

APA, Harvard, Vancouver, ISO, and other styles

8

Chen, Xiaoqi, Zhanlong Qu, Yuxi Wang, et al. "Prediction of Spectral Response for Explosion Separation Based on DeepONet." Aerospace 12, no. 4 (2025): 310. https://doi.org/10.3390/aerospace12040310.

Full text

Abstract:

Strong shock waves generated during the pyrotechnic separation process of aerospace vehicles can cause high-frequency damage or even structural failure to the vehicle’s structure. Existing structural designs for shock attenuation typically rely on shock response spectra methods, which require multiple finite element calculations to determine the optimal geometric parameters, leading to relatively low efficiency. In this work, we propose a spectral response prediction method for spacecraft structures using the Deep Operator Network (DeepONet). This method preserves the physical relationships be

APA, Harvard, Vancouver, ISO, and other styles

9

Florence, Alastair J., Norman Shankland, Kenneth Shankland, et al. "Solving molecular crystal structures from laboratory X-ray powder diffraction data withDASH: the state of the art and challenges." Journal of Applied Crystallography 38, no. 2 (2005): 249–59. http://dx.doi.org/10.1107/s0021889804032662.

Full text

Abstract:

The crystal structures of 35 molecular compounds have been redetermined from laboratory monochromatic capillary transmission X-ray powder diffraction data using the simulated-annealing approach embodied within theDASHstructure solution package. The compounds represent industrially relevant areas (pharmaceuticals; metal coordination compounds; nonlinear optical materials; dyes) in which the research groups in this multi-centre study are active. The molecules were specifically selected to form a series within which the degree of structural complexity (i.e. degrees of freedom in the global optimi

APA, Harvard, Vancouver, ISO, and other styles

10

Kunch, Zoriana. "UKRAINIAN LANGUAGE MEANS OF EUPHONY AND MODERN LANGUAGE PRACTICE." Theory and Practice of Teaching Ukrainian as a Foreign Language, no. 15 (May 1, 2021): 154–61. http://dx.doi.org/10.30970/ufl.2021.15.3292.

Full text

Abstract:

The article examines the problem of compliance with the norms of positional alternation of vowels and consonants “у” and “в” which is relevant for modern Ukrainian linguistics, in order to achieve euphonomy in the Ukrainian language. Based on the textbook “Local lore: theory and practice” (Kyiv: Center for Educational Literature, 2012. 528 p.) we have analyzed 378 examples of the use of prepositions-prefixes “у” and “в” (euphonems), separated by the method of continuous selection from the first 55 pages of the publication. The normative ones turned out to be 314 examples, which is 83.1%, erron

APA, Harvard, Vancouver, ISO, and other styles

11

Dahiphale, Varsha Prabhakar, Mangesh Santram Selukar, Geetanjali Bhagawanrao Sudke, and Promod Raghunath Kulkarni. "Incomplete ascent of left kidney with non rotation-a rare congenital anomaly." National Journal of Clinical Anatomy 05, no. 04 (2016): 237–40. http://dx.doi.org/10.1055/s-0039-3401619.

Full text

Abstract:

AbstractAnomalies of the urinary system form a significant portion of the congenital malformation as a whole. Anomalies of kidney have been frequently reported. Anomalies may occur in number, position, shape, size and rotation ofkidney. Structural, positional and vascular anomalies are the most frequently reported. Rotational anomalies form a rare entity not cited in most of the embryology text books. Now a days knowledge of variations in kidney position, rotation and variations in renal vessels are becoming more important due to gradual increase in interventional radiological procedures, urol

APA, Harvard, Vancouver, ISO, and other styles

12

Barannik, Vladimir, Serhii Sidchenko, Dmitriy Barannik, Andrii Yermachenkov, Maksym Savchuk, and Gennady Pris. "Video images compression method based on floating positional coding with an unequal codograms length." Radioelectronic and Computer Systems, no. 1 (March 7, 2023): 134–46. http://dx.doi.org/10.32620/reks.2023.1.11.

Full text

Abstract:

The subject of research in the article are the video images compression and encryption processes during the critically important objects managing process. The goal is to develop a method for compressing video images based on floating positional coding with an uneven codegrams length to simultaneously ensure information reliability and confidentiality during its transmission with a given time delay. Objectives: analyzing existing approaches to ensuring the video images confidentiality; development a method for compressing video images based on floating positional coding with an uneven codegrams

APA, Harvard, Vancouver, ISO, and other styles

13

Ferri, Fabio, Maria Chiara Bossuto, Pietro Anzini, et al. "Site-occupancy factors in the Debye scattering equation. A theoretical discussion on significance and correctness." Acta Crystallographica Section A Foundations and Advances 79, no. 6 (2023): 587–96. http://dx.doi.org/10.1107/s2053273323008446.

Full text

Abstract:

The Debye scattering equation (DSE) [Debye (1915). Ann. Phys. 351, 809–823] is widely used for analyzing total scattering data of nanocrystalline materials in reciprocal space. In its modified form (MDSE) [Cervellino et al. (2010). J. Appl. Cryst. 43, 1543–1547], it includes contributions from uncorrelated thermal agitation terms and, for defective crystalline nanoparticles (NPs), average site-occupancy factors (s.o.f.'s). The s.o.f.'s were introduced heuristically and no theoretical demonstration was provided. This paper presents in detail such a demonstration, corrects a glitch present in th

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Zhichen, Tao Chen, Yuyan Cao, Wenqiang Fan, Honghao Wang, and Wenpan Wang. "The Optimization Design of a Lightweight 2 m SiC Mirror for Ground-Based Telescopes." Photonics 11, no. 6 (2024): 581. http://dx.doi.org/10.3390/photonics11060581.

Full text

Abstract:

The weight of the primary mirror increases as the aperture of ground-based telescopes increases, making it more challenging to maintain the positional stability and surface accuracy of the solid primary mirror. Consequently, a 2 m lightweight silicon carbide (SiC) mirror and an optimization method were proposed in this study. The relationship between the gravitational deformation of the mirror and its thickness and number of supports was derived based on force analysis of the mirror; the thickness of the mirror and the appropriate number of supports were obtained as initial parameters for opti

APA, Harvard, Vancouver, ISO, and other styles

15

McFadden, Diane C., Bettina C. Fries, Fang Wang, and Arturo Casadevall. "Capsule Structural Heterogeneity and Antigenic Variation in Cryptococcus neoformans." Eukaryotic Cell 6, no. 8 (2007): 1464–73. http://dx.doi.org/10.1128/ec.00162-07.

Full text

Abstract:

ABSTRACT Cryptococcus neoformans is a human pathogenic fungus with a capsule composed primarily of glucuronoxylomannan (GXM) that is important for virulence. Current views of GXM structure postulate a polymer composed of repeating mannose trisaccharide motifs bearing a single β(1,2) glucuronic acid with variable xylose and O-acetyl substitutions to form six triads. GXM from different strains is notoriously variable in triad composition, but it is not known if the polymer consists of one or more motif-repeating units. We investigated the polymeric organization of GXM by using mass spectrometry

APA, Harvard, Vancouver, ISO, and other styles

16

Stjernfelt, Frederik. "The ontology of espionage in reality and fiction: A case study on iconicity." Sign Systems Studies 31, no. 1 (2003): 133–62. http://dx.doi.org/10.12697/sss.2003.31.1.05.

Full text

Abstract:

A basic form of iconicity in literature is the correspondence between basic conceptual schemata in literary semantics on the one hand and in factual treatments on the other. The semantics of a subject like espionage is argued to be dependent on the ontology of the field in question, with reference to the English philosopher Barry Smith’s “fallibilistic apriorism”. This article outlines such an ontology, on the basis of A. J. Greimas’s semiotics and Carl Schmitt’s philosophy of state, claiming that the semantics of espionage involves politology and narratology on an equal footing. The spy’s “po

APA, Harvard, Vancouver, ISO, and other styles

17

Souza, Luiz Antonio Farani de, Emerson Vitor Castelani, Wesley Vagner Inês Shirabayashi, Angelo Aliano Filho, and Roberto Dalledone Machado. "Trusses Nonlinear Problems Solution with Numerical Methods of Cubic Convergence Order." Tema (São Carlos) 19, no. 1 (2018): 161. http://dx.doi.org/10.5540/tema.2018.019.01.161.

Full text

Abstract:

A large part of the numerical procedures for obtaining the equilibrium path or load-displacement curve of structural problems with nonlinear behavior is based on the Newton-Raphson iterative scheme, to which is coupled the path-following methods. This paper presents new algorithms based on Potra-Pták, Chebyshev and super-Halley methods combined with the Linear Arc-Length path-following method. The main motivation for using these methods is the cubic order convergence. To elucidate the potential of our approach, we present an analysis of space and plane trusses problems with geometric nonlinear

APA, Harvard, Vancouver, ISO, and other styles

18

Chen, Yulong, Gang Rao, and Jiahao Yuan. "Optimal design and simulation of beam rib structure." Journal of Physics: Conference Series 3009, no. 1 (2025): 012045. https://doi.org/10.1088/1742-6596/3009/1/012045.

Full text

Abstract:

Abstract Regarding the optimization issue of the rib plate structure in machine tool beams, this paper addresses the irregularities and difficulties in processing associated with the optimization results of the rib plate structure in machine tool beam topology optimization. A method is proposed that can effectively optimize the design of the rib plate structure in machine tool beams. Firstly, the structural characteristics of the topological model were analyzed. The key characteristic parameters required for the structural formation of the stiffeners were found, such as the thickness of the st

APA, Harvard, Vancouver, ISO, and other styles

19

Godizova, Z. I., and M. D. Burceva. "Analytical adjectives in the modern Russian: systemic-functional features." Vestnik of Samara University. History, pedagogics, philology 30, no. 2 (2024): 97–104. http://dx.doi.org/10.18287/2542-0445-2024-30-2-97-104.

Full text

Abstract:

The article identifies and describes the analytical adjectives in the modern Russian and their structural and functional features (grammatical, spelling, positional, functional-semantic). Methods of continuous sampling, observation, description, analogy, classification and quantitative were implemented in the course of the study. Data of the National Corpus of the Russian Language (newspaper, main corpus and social media corpus) as well as data of Yandex.ru search engine provided the main language material of the research. The article represents a brief review of scientific research on analyti

APA, Harvard, Vancouver, ISO, and other styles

20

Vakakis, Alexander F. "Nonlinear Mode Localization in Systems Governed by Partial Differential Equations." Applied Mechanics Reviews 49, no. 2 (1996): 87–99. http://dx.doi.org/10.1115/1.3101890.

Full text

Abstract:

The concept of nonlinear normal mode (NNM) is used to study localized oscillations in certain classes of oscillators governed by nonlinear partial differential equations. NNMs are synchronous free oscillations during which all positional coordinates of the system reach their extreme values or pass through the equilibrium position at the same instant of time. Although such motions can be regarded as nonlinear analogs of the linear normal modes of classical vibration theory, not all NNMs are analytic continuations of linear ones. Continuous systems of finite and infinite spatial extent are consi

APA, Harvard, Vancouver, ISO, and other styles

21

Pashchenko, Tetyana, Andrii Kalenskyi, and Nataliia Kalashnik. "RELEVANT TECHNOLOGIES FOR DEVELOPING READINESS OF TEACHING STAFF FOR THE STANDARDIZATION OF JUNIOR SPECIALISTS’ TRAINING." Науковий вісник Інституту професійно-технічної освіти НАПН України Професійна педагогіка, no. 2(19) (November 25, 2019): 74–79. http://dx.doi.org/10.32835/2223-5752.2019.19.74-79.

Full text

Abstract:

Relevance: Professional training quality of prospective junior specialists mainly relies on teaching staff competence in professional training standards in colleges and technical schools. Aim: The aim of this article is to determine the ways of implementing educational technologies to develop teaching staff competence in junior specialists’ training standards. Methods: A number of theoretical methods were used in this research including the analysis and the synthesis (to identify the current issue research level), summary (to make conclusions and recommendations). Results: Th

APA, Harvard, Vancouver, ISO, and other styles

22

Furka, A., and W. D. Bennett. "Combinatorial Libraries by Portioning and Mixing." Combinatorial Chemistry & High Throughput Screening 2, no. 2 (1999): 105–22. http://dx.doi.org/10.2174/1386207302666220203194028.

Full text

Abstract:

Abstract: Combinatorial chemistry - due to its radically new synthetic methods - can be considered a forerunner of chemistry in the next century. One of the most important methods is the portioning-mixing (split-mix) synthesis which embodies the combinatorial principle. It is easily realized. Both manual and automatic devices have been described. Some features that contribute to its popularity include: it produces all possible structural combinations of the monomers, it has outstanding productivity, it leads to the formation of individual compounds in nearly equimolar quantities (affected by s

APA, Harvard, Vancouver, ISO, and other styles

23

Udayangani, Herath Mudiyanselage Imali Maheshika, Ginigal Godage Harindu Ginigal Godage Harindu, Virajini Uthayakumar, Lokuappu Kuttige Nadeesha Premathilaka, and Ekanayake Mudiyanselage Udagedara Chandra Kumari Herath. "Radiographic Evaluation of Developmental Dental Anomalies in Children Attending Dental Hospital Peradeniya-Sri Lanka." International Journal of Oral and Dental Health 10, no. 2 (2024): 1–7. https://doi.org/10.23937/2469-5734/1510167.

Full text

Abstract:

Introduction: Developmental dental anomalies are changes in the dental structure. These anomalies include the changes in shape, size, number, tissue structure, and position of teeth. Dental panoramic radiograph remains the gold standard for the early detection of such anomalies. Aim: The aim of this study was to assess developmental dental anomalies on dental panoramic radiographs of patients aged 6-18 years attending the Dental Hospital Peradeniya, Sri Lanka. Methods: All the dental panoramic radiographs of children aged 6 to 18 years, taken by the Department of Radiology, Dental Hospital Per

APA, Harvard, Vancouver, ISO, and other styles

24

Armah, Nii Abekah Akwetey, and Hubert Azoda Koffi. "Temperature Dependence on Structural Properties of Liquid Phase Synthesized ZnO." Advanced Nano Research 6, no. 1 (2023): 11–28. http://dx.doi.org/10.21467/anr.6.1.11-28.

Full text

Abstract:

Transparent conducting oxide material, ZnO nanoparticles has been synthesized using inexpensive and eco-friendly synthesis procedures with less or environmental pollutants and no liquid waste products. The effect of the temperatures on the structural properties for the synthesized ZnO nanocrystals has been investigated. In this study, we report an easy, low-cost, re-producible method for synthesizing ZnO nanoparticles by means of the liquid phase method. The ZnO nanocrystals were synthesized using the wet chemical route and the effect of temperature variation on the structural properties of in

APA, Harvard, Vancouver, ISO, and other styles

25

Podwórny, Jacek. "XRD Based Methods of Investigation the Order - Disorder Transformation in the Spinel Structure - A Comparative Study." Solid State Phenomena 203-204 (June 2013): 129–32. http://dx.doi.org/10.4028/www.scientific.net/ssp.203-204.129.

Full text

Abstract:

Three synthetic and stoichiometric 2:3 type spinels (Fd3m symmetry): MgAl2O4, MgFe2O4, NiAl2O4 with a different initial structural order in cation sublattice were investigated. Investigations by means of high temperature XRPD method at temperatures ranging from 25°C to 1100°C were carried out. Diffraction patterns at each temperature in isothermal conditions were measured. For each tested spinel changes in several temperature-dependent parameters were measured: oxygen positional parameter u(T), cell edge a0(T), cation site occupancies Occ(T) in tetrahedral and octahedral positions and a cation

APA, Harvard, Vancouver, ISO, and other styles

26

Chakoumakos, Bryan. "Atomic Motion in Crystals from Neutron Diffraction Experiments." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1094. http://dx.doi.org/10.1107/s2053273314089050.

Full text

Abstract:

Static or dynamic disorder in crystals causes a decrease in the Bragg peak intensity, and given sufficient number of Bragg peaks over an extended Q-range, atomic displacement parameters (ADPs) can be refined that quantify the intensity reduction due to the mean square displacements of atoms about their average positions. It is becoming increasingly apparent that ADPs constitute equally important structural information as atom positions and site occupancies. Unusual, yet accurately determined, ADPs can provide telltale clues to interesting physical phenomena, e.g., approach of phase transitions

APA, Harvard, Vancouver, ISO, and other styles

27

Nakamura, Hirohiko, Sachiko Takahashi, Koji Inaka, and Hiroaki Tanaka. "Semi-empirical model to estimate ideal conditions for the growth of large protein crystals." Acta Crystallographica Section D Structural Biology 76, no. 12 (2020): 1174–83. http://dx.doi.org/10.1107/s205979832001445x.

Full text

Abstract:

A large high-quality crystal is required to specify the positions of H atoms in neutron structural analysis. Consequently, several methods have been proposed for obtaining such large crystals, and theoretical considerations for growing them have been presented. However, further investigation is required to obtain a numerical model that can provide quantitative experimental conditions for obtaining a single large crystal. In the case of protein crystallization experiments, the amount of sample is often limited. Therefore, it is more realistic to make a rough estimation from a small number of ex

APA, Harvard, Vancouver, ISO, and other styles

28

Ma, Nan, Stephen Monk, and David Cheneler. "Modelling and Analysis of the Spital Branched Flexure-Hinge Adjustable-Stiffness Continuum Robot." Robotics 11, no. 5 (2022): 97. http://dx.doi.org/10.3390/robotics11050097.

Full text

Abstract:

Continuum robots are increasingly being used in industrial and medical applications due to their high number of degrees of freedom (DoF), large workspace and their ability to operate dexterously. However, the positional accuracy of conventional continuum robots with a backbone structure is usually low due to the low stiffness of the often-lengthy driving cables/tendons. Here, this problem has been solved by integrating additional mechanisms with adjustable stiffness within the continuum robot to improve its stiffness and mechanical performance, thus enabling it to be operated with high accurac

APA, Harvard, Vancouver, ISO, and other styles

29

Lansing, Alexis J., and Vincent R. Franceschi. "The paraveinal mesophyll: a specialized path for intermediary transfer of assimilates in legume leaves." Functional Plant Biology 27, no. 9 (2000): 757. http://dx.doi.org/10.1071/pp99167.

Full text

Abstract:

This paper originates from a presentation at the International Conference on Assimilate Transport and Partitioning, Newcastle, NSW, August 1999 The distance between sites of synthesis of assimilates and the site of phloem loading can be large, and specialized leaf cell layers such as the paraveinal mesophyll (PVM) might act to enhance the efficiency of transport. A number of techniques were used to analyse PVM of legume leaves with respect to a hypothesized function in transfer of assimilates between tissues. Of 39 legume species examined, PVM was found in 22. Leaves of all PVM-containing spec

APA, Harvard, Vancouver, ISO, and other styles

30

Zinatullina, A. E. "Structural features of explant cells in vivo and morphogenic callus formation in vitro (Review)." Biomics 13, no. 1 (2021): 8–19. http://dx.doi.org/10.31301/2221-6197.bmcs.2021-2.

Full text

Abstract:

Morphogenic callus is an integrated system that is formed in vitro from an explant both exogenously (as a result of proliferation of surface cells of various tissues) and endogenously (in the depth of these tissues), initially consisting of homogeneous meristematic cells, which are gradually transformed into groups of heterogeneous morphogenetically competent cells. Under optimal conditions of further in vitro cultivation the potencies of such cells are realized by various pathways of morphogenesis, including the formation of full-fledged regenerated plants, which is the goal of a number of bi

APA, Harvard, Vancouver, ISO, and other styles

31

Alaci, Stelian, Ioan Doroftei, Florina-Carmen Ciornei, Ionut-Cristian Romanu, and Ioan Alexandru Doroftei. "The Kinematics of a Bipod R2RR Coupling between Two Non-Coplanar Shafts." Mathematics 10, no. 16 (2022): 2898. http://dx.doi.org/10.3390/math10162898.

Full text

Abstract:

The paper presents a new solution for motion transmission between two shafts with non-intersecting axes. The structural considerations fundament the existence in the structure of the mechanism of three revolute pairs and a bipod contact. Compared to classical solutions, where linkages with cylindrical pairs are used, our solution proposes a kinematical chain also containing higher pairs. Due to the presence of a higher pair, the transmission is much simpler, the number of elements decreases, and as a consequence, the kinematical study is straightforward. Regardless, the classical analysis of l

APA, Harvard, Vancouver, ISO, and other styles

32

NES, W. David, Wenxu ZHOU, Allen L. DENNIS, et al. "Purification, characterization and catalytic properties of human sterol 8-isomerase." Biochemical Journal 367, no. 3 (2002): 587–99. http://dx.doi.org/10.1042/bj20020551.

Full text

Abstract:

CHO2, encoding human sterol 8-isomerase (hSI), was introduced into plasmids pYX213 or pET23a. The resulting native protein was overexpressed in erg2 yeast cells and purified to apparent homogeneity. The enzyme exhibited a Km of 50μM and a turnover number of 0.423s-1 for zymosterol, an isoelectric point of 7.70, a native molecular mass of 107000Da and was tetrameric. The structural features of zymosterol provided optimal substrate acceptability. Biomimetic studies of acid-catalysed isomerization of zymosterol resulted in formation of cholest-8(14)-enol, whereas the enzyme-generated product was

APA, Harvard, Vancouver, ISO, and other styles

33

Sinanoglou, Vassilia J., Irini F. Strati, Sotirios M. Bratakos, Charalampos Proestos, Panagiotis Zoumpoulakis, and Sofia Miniadis-Meimaroglou. "On the Combined Application of Iatroscan TLC-FID and GC-FID to Identify Total, Neutral, and Polar Lipids and Their Fatty Acids Extracted from Foods." ISRN Chromatography 2013 (January 15, 2013): 1–8. http://dx.doi.org/10.1155/2013/859024.

Full text

Abstract:

An efficient separation and quantification of the individual neutral and polar lipid classes and their constituent fatty acids was achieved by the combination of two different detection techniques: Iatroscan TLC-FID and GC-FID. The solvent composition and ratio of development system, the sample size, the fidelity, and precision were tested in order to estimate the effectiveness of separation of individual neutral and polar lipid classes and the quantitative reproducibility of the Iatroscan TLC-FID technique. GC-FID method, with a high-quality capillary column, allowed sensitive and reproducibl

APA, Harvard, Vancouver, ISO, and other styles

34

Krasnobayev, Victor, Serhii Koshman, Serhii Nikolsky, and Dmytro Kovalchuk. "MATHEMATICAL MODEL OF COMPUTER SYSTEM RELIABILITY IN RESIDUAL CLASSES." Advanced Information Systems 6, no. 4 (2022): 19–24. http://dx.doi.org/10.20998/2522-9052.2022.4.03.

Full text

Abstract:

The subject of the article is the construction of a mathematical model of the reliability of a computer system (CS) that operates in a system of residual classes (RNS). This mathematical model is based on the use of structural sliding reservation. The purpose of the article is to increase the reliability of the CS, which operates in the system of residual classes, as well as to calculate and compare the reliability, in terms of the probability of failure-free operation, of the CS in the RNS and the ternary computing system, which operates in the positional binary number system (PBNS). Tasks: t

APA, Harvard, Vancouver, ISO, and other styles

35

Montagne, J., J. Groppe, K. Guillemin, M. A. Krasnow, W. J. Gehring, and M. Affolter. "The Drosophila Serum Response Factor gene is required for the formation of intervein tissue of the wing and is allelic to blistered." Development 122, no. 9 (1996): 2589–97. http://dx.doi.org/10.1242/dev.122.9.2589.

Full text

Abstract:

The adult Drosophila wing is formed by an epithelial sheet, which differentiates into two non-neural tissues, vein or intervein. A large number of genes, many of them encoding components of an EGF-receptor signaling pathway, have previously been shown to be required for differentiation of vein tissue. Much less is known about the molecular control of intervein differentiation. Here we report that the Drosophila homolog of the mammalian Serum Response Factor gene (DSRF), which encodes a MADS-box containing transcriptional regulator, is expressed in the future intervein tissue of wing imaginal d

APA, Harvard, Vancouver, ISO, and other styles

36

Cousley, Richard, Hiroyuki Naora, Minesuke Yokoyama, Minoru Kimura, and Hiroki Otani. "Validity of the HfmTransgenic Mouse as a Model for Hemifacial Microsomia." Cleft Palate-Craniofacial Journal 39, no. 1 (2002): 81–92. http://dx.doi.org/10.1597/1545-1569_2002_039_0081_vothtm_2.0.co_2.

Full text

Abstract:

Objective Our comprehension of hemifacial microsomia (HFM) has been hindered by its diverse phenotype and unclear etiopathogenesis. The conventional view has been that HFM's facial defects result from embryonic hemorrhages in the region of the first and second branchial arches. A more recent model based on a transgenic mutation of a locus termed Hfm (B1 to B3 on chromosome 10) appears to provide an insight into HFM causation. This study investigated the validity of this model by examining the Hfm craniofacial phenotype and histological development of the embryonic head (E13.5 to 17.5). Results

APA, Harvard, Vancouver, ISO, and other styles

37

Puelles, Luis. "Functional Implications of the Prosomeric Brain Model." Biomolecules 14, no. 3 (2024): 331. http://dx.doi.org/10.3390/biom14030331.

Full text

Abstract:

Brain models present a viewpoint on the fundamental structural components of the brain and their mutual organization, generally relative to a particular concept of the brain axis. A model may be based on adult brain structure or on developmental morphogenetic aspects. Brain models usually have functional implications, depending on which functional properties derive from the postulated organization. This essay examines the present scenario about brain models, emphasizing the contrast between columnar or other longitudinal models and transverse subdivisional neuromeric models. In each case, the

APA, Harvard, Vancouver, ISO, and other styles

38

Koshman, Serhii, Victor Krasnobayev, Serhii Nikolsky, and Dmytro Kovalchuk. "THE STRUCTURE OF THE COMPUTER SYSTEM IN THE RESIDUAL CLASSES." Advanced Information Systems 7, no. 2 (2023): 41–48. http://dx.doi.org/10.20998/2522-9052.2023.2.06.

Full text

Abstract:

The subject of the article is the formulation and solution of the inverse problem of optimal redundancy in the system of residual classes (RNS) based on the use of the dynamic programming method. The solution of this problem makes it possible to improve the reliability of the operation of computer systems and components (CSC) in the RNS. The purpose of the article is to increase the reliability of the functioning of CSC, which are built on the basis of the use of RNS, without reducing the speed of calculations, as well as to calculate and compare the reliability, in terms of the probability of

APA, Harvard, Vancouver, ISO, and other styles

39

Sharma, V., and RK Shah. "Conventional vestibular function tests vs. butterfly vestibulometry in peripheral vertigo." Nepal Journal of Medical Sciences 3, no. 1 (2014): 31–37. http://dx.doi.org/10.3126/njms.v3i1.10355.

Full text

Abstract:

Background: To perform conventional vestibular function tests & butterfly vestibulometry via electronystagmography (E.N.G.) in patients diagnosed clinically as suffering from peripheral vertigo. To rule out the presence of a central lesion in clinically diagnosed patients of peripheral vertigo. Methods: This is a prospective, cross-sectional, case series study conducted in 50 normal subjects and 138 patients clinically diagnosed as suffering from peripheral vertigo (excluding benign paroxysmal positional vertigo), who were subjected to conventional vestibular function tests &butterfly

APA, Harvard, Vancouver, ISO, and other styles

40

Altmann, Friedrich, Johannes Helm, Martin Pabst, and Johannes Stadlmann. "Introduction of a human- and keyboard-friendly N-glycan nomenclature." Beilstein Journal of Organic Chemistry 20 (March 15, 2024): 607–20. http://dx.doi.org/10.3762/bjoc.20.53.

Full text

Abstract:

In the beginning was the word. But there were no words for N-glycans, at least, no simple words. Next to chemical formulas, the IUPAC code can be regarded as the best, most reliable and yet immediately comprehensible annotation of oligosaccharide structures of any type from any source. When it comes to N-glycans, the venerable IUPAC code has, however, been widely supplanted by highly simplified terms for N-glycans that count the number of antennae or certain components such as galactoses, sialic acids and fucoses and give only limited room for exact structure description. The highly illustrati

APA, Harvard, Vancouver, ISO, and other styles

41

Hill, R. J., and I. C. Madsen. "Data Collection Strategies for Constant Wavelength Rietveld Analysis." Powder Diffraction 2, no. 3 (1987): 146–62. http://dx.doi.org/10.1017/s088571560001263x.

Full text

Abstract:

AbstractIn the Rietveld method for the analysis of powder diffraction data the entire pattern is calculated using a model for the positions of the peaks (the unit cell parameters), their intensities (dependent on the atomic positional and thermal parameters, preferred orientation, etc.) and their widths and shapes, together with a description of the background. The calculated pattern is then compared with the observed step profile, point by point, and the model parameters are adjusted by least-squares methods.In order to ensure the best possible outcome of the refinement, a number of critical

APA, Harvard, Vancouver, ISO, and other styles

42

Biswas, Anushua, and Leelavati Narlikar. "Resolving diverse protein–DNA footprints from exonuclease-based ChIP experiments." Bioinformatics 37, Supplement_1 (2021): i367—i375. http://dx.doi.org/10.1093/bioinformatics/btab274.

Full text

Abstract:

Abstract Motivation High-throughput chromatin immunoprecipitation (ChIP) sequencing-based assays capture genomic regions associated with the profiled transcription factor (TF). ChIP-exo is a modified protocol, which uses lambda exonuclease to digest DNA close to the TF-DNA complex, in order to improve on the positional resolution of the TF-DNA contact. Because the digestion occurs in the 5′–3′ orientation, the protocol produces directional footprints close to the complex, on both sides of the double stranded DNA. Like all ChIP-based methods, ChIP-exo reports a mixture of different regions asso

APA, Harvard, Vancouver, ISO, and other styles

43

Phelan, M. L., R. Sadoul, and M. S. Featherstone. "Functional differences between HOX proteins conferred by two residues in the homeodomain N-terminal arm." Molecular and Cellular Biology 14, no. 8 (1994): 5066–75. http://dx.doi.org/10.1128/mcb.14.8.5066-5075.1994.

Full text

Abstract:

Hox genes encode homeodomain-containing transcriptional regulators that function during development to specify positional identity along embryonic axes. The homeodomain is composed of a flexible N-terminal arm and three alpha helices, and it differentially binds DNA. A number of homeodomains recognize sites containing a TAAT core motif. The product of the murine Hoxd-4 (Hox-4.2) gene functions in a positive autoregulatory fashion in P19 cells that is dependent on two TAAT motifs in the Hoxd-4 promoter. This effect is specific in that murine HOXA-1 (HOX-1.6) is unable to activate transcription

APA, Harvard, Vancouver, ISO, and other styles

44

Demidovskij, Alexander, and Eduard Babkin. "Adapting Neural Turing Machines for linguistic assessments aggregation in neural-symbolic decision support systems." Information and Control Systems, no. 5 (October 26, 2021): 40–50. http://dx.doi.org/10.31799/1684-8853-2021-5-40-50.

Full text

Abstract:

Introduction: The construction of integrated neurosymbolic systems is an urgent and challenging task. Building neurosymbolic decision support systems requires new approaches to represent knowledge about a problem situation and to express symbolic reasoning at the subsymbolic level. Purpose: Development of neural network architectures and methods for effective distributed knowledge representation and subsymbolic reasoning in decision support systems in terms of algorithms for aggregation of fuzzy expert evaluations to select alternative solutions. Methods: Representation of fuzzy and uncertain

APA, Harvard, Vancouver, ISO, and other styles

45

Phelan, M. L., R. Sadoul, and M. S. Featherstone. "Functional differences between HOX proteins conferred by two residues in the homeodomain N-terminal arm." Molecular and Cellular Biology 14, no. 8 (1994): 5066–75. http://dx.doi.org/10.1128/mcb.14.8.5066.

Full text

Abstract:

Hox genes encode homeodomain-containing transcriptional regulators that function during development to specify positional identity along embryonic axes. The homeodomain is composed of a flexible N-terminal arm and three alpha helices, and it differentially binds DNA. A number of homeodomains recognize sites containing a TAAT core motif. The product of the murine Hoxd-4 (Hox-4.2) gene functions in a positive autoregulatory fashion in P19 cells that is dependent on two TAAT motifs in the Hoxd-4 promoter. This effect is specific in that murine HOXA-1 (HOX-1.6) is unable to activate transcription

APA, Harvard, Vancouver, ISO, and other styles

46

Jiang, Pengfei, Fumin Zhuge, Suolin Jing, Zongkai Li, Peng Xiao, and Yuguang Lv. "Roof Water Damage Prediction and Evaluation of Sand-Mud Sedimentary Tectonic Strata." Geofluids 2023 (April 13, 2023): 1–10. http://dx.doi.org/10.1155/2023/2243885.

Full text

Abstract:

The prediction and control of roof water disaster has been one of the key problems in the mining process of coal resources. With the increase of mining depth in the western mining area, the roof caving and communicating to the overlying water-bearing strata have led to an increasing number of roof water inrush accidents and deterioration of production environment of the working face. Aiming at the problem of roof water disaster prediction of sandy-argillaceous structural strata in Shanghaimiao mining area in China, firstly, the mechanical structure model of roof water inrush was built accordin

APA, Harvard, Vancouver, ISO, and other styles

47

Sanko, A. A., V. A. Vetoshkin, and E. L. Ivanovskaya. "A full-scale simulator for research of navigation and filtering algorithms of a strapdown inertial navigation system using the Matlab-Simulink environment." Civil Aviation High Technologies 27, no. 6 (2025): 82–93. https://doi.org/10.26467/2079-0619-2024-27-6-82-93.

Full text

Abstract:

Due to the increasing complexity of aircraft navigation equipment and the growing demands placed on them, there is a need to study and improve existing navigation and filtering algorithms by solving problems of developing full-scale research simulators. The article presents the results of work in the field of creating a full-scale simulator for research of navigation and filtering algorithms for a strapdown inertial navigation system (SINS) comprising: primary navigation data sensors made using microelectromechanical system technology (MEMS), servos and a navigation platform with two-degrees-o

APA, Harvard, Vancouver, ISO, and other styles

48

Elіseev, Yevhen. "METHOD RECONSTRUCTION SEGMENTED VIDEO DATA STREAM BY NORMALIZED DATA SETS IN SPECTRAL-PARAMETRIC SPACE." Information and communication technologies, electronic engineering 5, no. 1 (2025): 55–63. https://doi.org/10.23939/ictee2025.01.055.

Full text

Abstract:

The article shows that depending on the features of applied application, different requirements are put forward for information and technical features and performance characteristics of information and network systems. This motivates the creation of new and improvement of existing video encoding technologies. However, with the development of information technologies, new opportunities are created for their applied application. The requirements for: completeness of video data are growing; analysis of complex video scenes, frames; providing information advantage in the context of cyber confronta

APA, Harvard, Vancouver, ISO, and other styles

49

Haspelmath, Martin. "Explaining the Ditransitive Person-Role Constraint: A usage-based account." Constructions 2 (July 18, 2004): 1–71. https://doi.org/10.5281/zenodo.831408.

Full text

Abstract:

In this paper, I propose a frequency-based explanation of the Ditransitive Person-Role Constraint, a cross-linguistic generalization that can be formulated as follows: “Combinations of bound pronouns with the roles Recipient and Theme are disfavored if the Theme pronoun is first or second person and the Recipient pronoun is third person.” This constraint is well-known from Spanish and other Romance languages: Alicia se lo mostrará. 'Alicia will show it to her.' (3rd theme, 3rd recipient), but * Alicia te le mostrará. '...you to her.' (2nd theme, 3rd recipient). The theoretical literature offer

APA, Harvard, Vancouver, ISO, and other styles

50

Hou, Jinhuan, and Fuqiang Ding. "Design and Analysis of Network Virus Defense System Based on Multimodal Data Mining Technology." Scientific Programming 2022 (January 25, 2022): 1–11. http://dx.doi.org/10.1155/2022/8587906.

Full text

Abstract:

This study analyzes and designs a network security management system based on the K-means algorithm. Through the investigation of network security managers, this article uses structured modeling technology to derive the system’s logical business functions, which are data acquisition function, data analysis function, and post-processing function. This study uses a three-tier architecture to design the system, describes the system data business processing flow, and gives the key flow of the K-means algorithm application. In addition, the system database is designed to provide support for system

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!