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Artykuły w czasopismach na temat „Spherical chain”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Lee, C.-C., and J. M. Hervé. "Discontinuously Movable Seven-Link Mechanisms Via Group-Algebraic Approach." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 219, no. 6 (2005): 577–87. http://dx.doi.org/10.1243/095440605x31436.

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Combining planar and spherical 4R chains generates three kinds of new discontinuously movable (DM) seven-link mechanisms. The mobility analysis is based on algebraic concepts of set theory. These mechanisms are called hybrid planar-spherical 7R, hybrid spherical-spherical 7R, and hybrid planar-planar 6RIP DM mechanisms. Their discontinuous mobility is explained employing the Lie group algebraic properties of the displacement set. Moreover, the same given spatial arrangement of joints can be linked in two ways constituting two distinct chains, which have a quite different mobility. One chain ha

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2

Yang, Shuo, Bin Wu, Xiucheng Liu, Mingzhi Li, Heying Wang, and Cunfu He. "Piezoelectric Impact Energy Harvester Based on the Composite Spherical Particle Chain for Self-Powered Sensors." Sensors 21, no. 9 (2021): 3151. http://dx.doi.org/10.3390/s21093151.

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In this study, a novel piezoelectric energy harvester (PEH) based on the array composite spherical particle chain was constructed and explored in detail through simulation and experimental verification. The power test of the PEH based on array composite particle chains in the self-powered system was realized. Firstly, the model of PEH based on the composite spherical particle chain was constructed to theoretically realize the collection, transformation, and storage of impact energy, and the advantages of a composite particle chain in the field of piezoelectric energy harvesting were verified.

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3

Korpinar, Talat. "Geometric magnetic phase for timelike spherical optical ferromagnetic model." International Journal of Geometric Methods in Modern Physics 18, no. 07 (2021): 2150099. http://dx.doi.org/10.1142/s0219887821500997.

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In this paper, we give some constructions for the applications of optical magnetic Heisenberg spherical ferromagnetic chain of T - timelike magnetic particle by spherical de Sitter frame in de Sitter space. This aim may be concluded by well-known de Sitter frame or a new alternative spherical frame with an optical magnetic spherical Heisenberg ferromagnetic chain. Moreover, we achieve total magnetic phases of T - timelike magnetic particle evolutions. Finally, we obtain some numerical modeling of optical magnetic spherical Heisenberg ferromagnetic flows.

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4

Pavlenko, Sophia A., Daniil E. Larin, and Elena N. Govorun. "Self-assembly of hydrophobic–amphiphilic diblock copolymers in solution." Journal of Physics: Condensed Matter 34, no. 12 (2022): 125001. http://dx.doi.org/10.1088/1361-648x/ac462c.

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Abstract Thermoresponsive polymers are usually characterized by a locally amphiphilic chain structure and their self-assembly in solution is controlled, in particular, by the surface activity of the monomer units or side chains. We theoretically study the condensed state of a single diblock copolymer molecule consisting of a hydrophobic block and amphiphilic block with hydrophobic groups in the backbone and pendant polar groups. The equilibrium parameters of the polymer globules of different shapes are determined using the mean-field approach to determine the most favorable structure. Morpholo

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5

Jackson, George, and Keith E. Gubbins. "Mixtures of associating spherical and chain molecules." Pure and Applied Chemistry 61, no. 6 (1989): 1021–26. http://dx.doi.org/10.1351/pac198961061021.

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6

Procházka, Karel, and Zuzana Limpouchová. "Tethered Chains in Concave Volumes. A Monte Carlo Study." Collection of Czechoslovak Chemical Communications 59, no. 10 (1994): 2166–89. http://dx.doi.org/10.1135/cccc19942166.

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Monte Carlo study of tethered chain conformations in spherical cavities was performed in a relatively broad range of average segment densities (i.e. numbers of tethered chains with increasing length in the sphere). Simulations were performed on a tetrahedral lattice using (i) an equilibrated self-avoiding walk for systems containing a single tethered chain with increasing length, and (ii) a simultaneous self-avoiding walk of many tethered chains in the spherical cavity together with equilibration of the system which was performed by a modified algorithm similar to that of Siepmann and Frenkel.

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7

Li, Wanyue, and Xinyue Yu. "An integrated T-spherical fuzzy GLDS method for evaluating resiliency in the food supply chain." Computer and Decision Making: An International Journal 2 (March 4, 2025): 482–94. https://doi.org/10.59543/comdem.v2i.13877.

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A resilient food supply chain is vital for maintaining the stability and efficiency of food distribution systems. This study introduces a novel approach that integrates a T-spherical fuzzy set with the Group Linear Distance System (GLDS) method to evaluate resiliency in the food supply chain. The T-spherical fuzzy set is utilized to handle the food supply chain’s uncertainties and vagueness in assessing resiliency factors, such as farmers, processors, wholesalers, supermarkets, and small retailers. The TSF-GLDS method is integrated with the PWA operator and using entropy measurement, the signi

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8

Gonzalez-Tovar, Enrique, and Marcelo Lozada-Cassou. "The spherical double layer: a hypernetted chain mean spherical approximation calculation for a model spherical colloid particle." Journal of Physical Chemistry 93, no. 9 (1989): 3761–68. http://dx.doi.org/10.1021/j100346a076.

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9

Singh, Himanshi, Debes Ray, Joachim Kohlbrecher, and Vinod K. Aswal. "Interaction of nanoparticles with non-spherical micelles and bilayers." Journal of Applied Physics 131, no. 15 (2022): 154701. http://dx.doi.org/10.1063/5.0084795.

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Interaction of different-sized anionic silica nanoparticles with non-spherical micelles and bilayers of non-ionic surfactant C12E10 has been studied by small-angle neutron scattering (SANS). The non-ionic surfactant C12E10 in aqueous solution self-assembles to form core–shell spherical micelles. Different means (temperature, salts, and alcohols) have been examined to induce the structural transition of micelles from spherical to non-spherical and bilayer formation. The dehydration from micellar shell leads to such transition in the cases of increasing temperature and selective salt (e.g., KF).

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10

Chu, Chia-Cheng, and Pai-Yi Hsiao. "Expansion of Single Chains Released from a Spherical Cavity." Polymers 15, no. 1 (2022): 198. http://dx.doi.org/10.3390/polym15010198.

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A two-stage model is developed to explain the phenomena of chain expansion, released from a confining cavity. In the first stage, the chain is assumed to expand as a sphere, while in the second stage it expands like a coil. The kinetic equations for the variation of chain size are derived in the two stages by balancing the rate of the free energy change with the rate of the energy dissipation. Langevin dynamics simulations are then performed to examine the theory. We find that the expansion process is dominated by the second stage and the evolution of chain size follows, mainly, the predicted

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11

Galki, Vladislav D., and Olga V. Pochinka. "Spherical flow diagram with finite hyperbolic chain-recurrent set." Zhurnal Srednevolzhskogo Matematicheskogo Obshchestva 24, no. 2 (2022): 132–40. http://dx.doi.org/10.15507/2079-6900.24.202202.132-140.

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In this paper, authors examine flows with a finite hyperbolic chain-recurrent set without heteroclinic intersections on arbitrary closed n-manifolds. For such flows, the existence of a dual attractor and a repeller is proved. These points are separated by a (n−1)-dimensional sphere, which is secant for wandering trajectories in a complement to attractor and repeller. The study of the flow dynamics makes it possible to obtain a topological invariant, called a spherical flow scheme, consisting of multi-dimensional spheres that are the intersections of a secant sphere with invariant saddle manifo

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12

Gavrielov, N., A. Leviatan, and F. Iachello. "Intertwined quantum phase transitions in the Zr chain." EPJ Web of Conferences 223 (2019): 01021. http://dx.doi.org/10.1051/epjconf/201922301021.

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We introduce the notion of intertwined quantum phase transitions (IQPTs), for which a crossing of two configurations coexists with a pronounced shape-evolution of each configuration. A detailed analysis in the framework of the interacting boson model with configuration mixing, provides evidence for this scenario inthe Zr isotopes. The latter exhibit a normal configuration which remains spherical along the chain, but exchanges roles with an intruder configuration, which undergoes first a spherical to prolate-deformed [U(5)→SU(3)] QPT and then a crossover to γ-unstable [SU(3)→SO(6)].

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13

Riaz, Muhammad, Hafiz Muhammad Athar Farid, Dragan Pamucar, and Shaista Tanveer. "Spherical Fuzzy Information Aggregation Based on Aczel–Alsina Operations and Data Analysis for Supply Chain." Mathematical Problems in Engineering 2022 (October 4, 2022): 1–20. http://dx.doi.org/10.1155/2022/9657703.

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Spherical fuzzy sets (SFSs) are often made up of membership, nonmembership, and hesitancy grades, and also have the advantage of accurately representing decision makers (DMs) preferences. This article proposes novel spherical fuzzy aggregation operators (AOs) based on Aczel–Alsina (AA) operations, which offer a lot of advantages when tackling real-world situations. We begin by introducing some new SFS operations, such as the Aczel–Alsina product, the Aczel–Alsina sum, the Aczel–Alsina exponent, and the Aczel–Alsina scalar multiplication. We developed many AOs namely, the “spherical fuzzy Aczel

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14

Aktaş, Buşra, Olgun Durmaz, and Hal˙t Gündoğan. "On Constraint Manifolds of Lorentz Sphere." Analele Universitatii "Ovidius" Constanta - Seria Matematica 28, no. 2 (2020): 15–34. http://dx.doi.org/10.2478/auom-2020-0017.

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AbstractThe expression of the structure equation of a mechanism is significant to present the last position of the mechanism. Moreover, in order to attain the constraint manifold of a chain, we need to constitute the structure equation. In this paper, we determine the structure equations and the constraint manifolds of a spherical open-chain in the Lorentz space. The structure equations of spherical open chain with reference to the causal character of the first link are obtained. Later, the constraint manifolds of the mechanism are determined by means of these equations. The geometric construc

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15

Vella, Dominic, Emmanuel du Pontavice, Cameron L. Hall, and Alain Goriely. "The magneto-elastica : from self-buckling to self-assembly." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 470, no. 2162 (2014): 20130609. http://dx.doi.org/10.1098/rspa.2013.0609.

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Spherical neodymium–iron–boron magnets are permanent magnets that can be assembled into a variety of structures owing to their high magnetic strength. A one-dimensional chain of these magnets responds to mechanical loadings in a manner reminiscent of an elastic rod. We investigate the macroscopic mechanical properties of assemblies of ferromagnetic spheres by considering chains, rings and chiral cylinders of magnets. Based on energy estimates and simple experiments, we introduce an effective magnetic bending stiffness for a chain of magnets and show that, used in conjunction with classic resul

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16

Wilke, Daniel N. "Traction chain networks: Insights beyond force chain networks for non-spherical particle systems." Powder Technology 402 (April 2022): 117362. http://dx.doi.org/10.1016/j.powtec.2022.117362.

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17

Wang, Huiming, and Jianpeng Yang. "Quantifying the equilibrium swelling responses and swelling-induced snap-through of heterogeneous spherical hydrogels." Journal of Intelligent Material Systems and Structures 32, no. 1 (2020): 113–23. http://dx.doi.org/10.1177/1045389x20951247.

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We employ the finite deformation theory to analyze the inhomogeneous large deformation of a heterogeneous spherical hydrogel subjected to chemo-mechanical loadings. The heterogeneous spherical hydrogel is composed of two concentric spherical hydrogel layers with different material properties. The Gent model is employed for the free energy function of the polymer stretching part in order to tackle the effect of the limiting chain extensibility. The heterogeneous spherical hydrogel is assumed to be perfectly bonded at the interface and is traction free at the external surface. At the internal su

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18

Fang, Hairong, Yuefa Fang, and Ketao Zhang. "Kinematics and workspace analysis of a novel 3-DOF parallel manipulator with virtual symmetric plane." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 3 (2012): 620–29. http://dx.doi.org/10.1177/0954406212462947.

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This article presents a novel 3-DOF parallel manipulator extracted from an origami fold in the context of mechanisms. The parallel manipulator consists of a base, a platform and four chain-legs that connect the platform to base through revolute joints. Each chain-leg contains a closed-loop sub-chain, which is spherical 6R linkage with symmetrical angle lengths. The geometry of the parallel manipulator is revealed according to the configuration design and specifics of the origami fold. This leads to unravelling of the symmetric plane which is determined by the common points of spherical 6R link

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19

Wang, Huiyong, Bo Tan, Hucheng Zhang, and Jianji Wang. "pH triggered self-assembly structural transition of ionic liquids in aqueous solutions: smart use of pH-responsive additives." RSC Advances 5, no. 80 (2015): 65583–90. http://dx.doi.org/10.1039/c5ra12010a.

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The pH responsive fluids consisting of single-chain ionic liquid surfactants [C<sub>n</sub>mim]Br (n = 12, 14) and hydrotropes can reversibly transform from spherical micelles to vesicles then to spherical micelles again with the change of the solution pH value.

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20

GAO XIAO-YUN, LI JIN, HOU DENG-LU, YANG FU-MING, ZHONG XIA-PING, and LUO HE-LIE. "MAGNETIC VISCOSITY OF CHAIN-SPHERICAL Fe ULTRA-FINE PARTICLES." Acta Physica Sinica 42, no. 11 (1993): 1851. http://dx.doi.org/10.7498/aps.42.1851.

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21

Maynard-Benson, Amber, Mariya Alekisch, Alyssa Wall, Eugene J. Billiot, Fereshteh H. Billiot, and Kevin F. Morris. "Characterization of Micelle Formation by the Single Amino Acid-Based Surfactants Undecanoic L-Isoleucine and Undecanoic L-Norleucine in the Presence of Diamine Counterions with Varying Chain Lengths." Colloids and Interfaces 7, no. 2 (2023): 28. http://dx.doi.org/10.3390/colloids7020028.

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The binding of linear diamine counterions with different methylene chain lengths to the amino-acid-based surfactants undecanoic L-isoleucine (und-IL) and undecanoic L-norleucine (und-NL) was investigated with NMR spectroscopy. The counterions studied were 1,2-ethylenediamine, 1,3-diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, and 1,6-diaminohexane. These counterions were all linear diamines with varying spacer chain lengths between the two amine functional groups. The sodium counterion was studied as well. Results showed that when the length of the counterion methylene chain was increa

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22

DONG, SHIJIN, HAITAO ZHANG, XUEJUN CUI, ZHENYING SUI, JIA XU, and HONGYAN WANG. "MESOSCOPIC SIMULATION ON THE PHASE STRUCTURE OF PLURONIC P105 AQUEOUS SOLUTION." Journal of Theoretical and Computational Chemistry 09, no. 04 (2010): 767–83. http://dx.doi.org/10.1142/s0219633610005955.

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The mesoscopic dynamic simulation (MesoDyn) has been carried out to investigate the phase structure and the aggregate properties of triblock copolymers (ethylene oxide)37 (propylene oxide)56 (ethylene oxide)37 (P105) in aqueous solution. A Gaussian chain model is successfully built according to the equivalent chain method and the Flory–Huggins interaction parameters, χ, used for determining the repulsions between different chain segments are computed. Simulation results show that P105 can form several microstructures including spherical micelles, ellipsoid micellar cluster, worm-like micelles,

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23

Gao, Jia, Kun An, Chao Lv, Jingjing Nie, Junting Xu, and Binyang Du. "Self-Assembly of Linear Amphiphilic Pentablock Terpolymer PAAx-PS48-PEO46-PS48-PAAxin Dilute Aqueous Solution." Polymers 12, no. 10 (2020): 2183. http://dx.doi.org/10.3390/polym12102183.

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A series of linear amphiphilic pentablock terpolymer PAAx-b-PS48-b-PEO46-b-PS48-b-PAAx (AxS48O46S48Ax) with various lengths x of the PAA block (x = 15, 40, 60, and 90) were synthesized via a two-step atom transfer radical polymerization (ATRP) using Br-poly(ethylene oxide)-Br (Br-PEO46-Br) as the macroinitiator, styrene (St) as the first monomer, and tert-butyl acrylate (tBA) as the second monomer, followed with the hydrolysis of PtBA blocks. The AxS48O46S48Ax pentablock terpolymers formed micelles in dilute aqueous solution, of which the morphologies were dependent on the length x of the PAA

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24

Karatrantos, Argyrios, Nigel Clarke, Russell J. Composto, and Karen I. Winey. "Polymer conformations in polymer nanocomposites containing spherical nanoparticles." Soft Matter 11, no. 2 (2015): 382–88. http://dx.doi.org/10.1039/c4sm01980f.

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We investigate the effect of various spherical nanoparticles on chain dimensions in polymer melts for high nanoparticle loading which is larger than the percolation threshold, using molecular dynamics simulations.

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25

Buntara Sanjeeva, Kavitha, Claudia Pigliacelli, Lara Gazzera, Valentina Dichiarante, Francesca Baldelli Bombelli, and Pierangelo Metrangolo. "Halogen bond-assisted self-assembly of gold nanoparticles in solution and on a planar surface." Nanoscale 11, no. 39 (2019): 18407–15. http://dx.doi.org/10.1039/c9nr07054k.

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26

Tong, Yu, Xufeng Dong, Min Qi, and Zhanjun Wu. "Influence of chain-like cobalt particles on the properties of magnetorheological elastomers." Smart Materials and Structures 31, no. 3 (2022): 035007. http://dx.doi.org/10.1088/1361-665x/ac4c00.

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Abstract The different pre-structure formed by the particles determine the performance of magnetorheological elastomers (MREs). In this study, spherical cobalt particles with a diameter of 2–5 μm and chain-like cobalt particles (CCPs) composed of spherical particles with a diameter of about 1 μm with a chain length of 10–40 μm were respectively prepared. These two kinds of particles were used to prepared MREs under different orientation magnetic fields. The effects of different chain-like microstructures on the performance of MRE are compared. The dynamic viscoelastic test results of MREs show

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27

Gao, Jie, Ping Tang, Yuliang Yang, and Jeff Z. Y. Chen. "Free energy of a long semiflexible polymer confined in a spherical cavity." Soft Matter 10, no. 26 (2014): 4674–85. http://dx.doi.org/10.1039/c4sm00605d.

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28

Sale, W. S., U. W. Goodenough, and J. E. Heuser. "The substructure of isolated and in situ outer dynein arms of sea urchin sperm flagella." Journal of Cell Biology 101, no. 4 (1985): 1400–1412. http://dx.doi.org/10.1083/jcb.101.4.1400.

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Outer-arm dynein from the sperm of the sea urchin S. purpuratus was adsorbed to mica flakes and visualized by the quick-freeze, deep-etch technique. Replicas reveal particles comprised of two globular heads joined by two irregularly shaped stems which make contact along their length. One head is pear-shaped (18.5 X 12.5 nm) and the other is spherical (14.5-nm diam). The stems are decorated by a complex of bead-like subunits. The same two-headed protein is found in the 21S dynein-1 fraction of sucrose gradients. The beta-heavy chain/intermediate chain 1 (beta/IC-1) dynein subfraction, produced

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29

Dutka, Filip, Zbigniew Rozynek, and Marek Napiórkowski. "Continuous and discontinuous transitions between two types of capillary bridges on a beaded chain pulled out from a liquid." Soft Matter 13, no. 27 (2017): 4698–708. http://dx.doi.org/10.1039/c7sm00396j.

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A plot of the height of the chain, at which the morphological transition takes place; it is continuous (discontinuous) when the diameter of the spherical beads is larger (smaller) than the capillary length. The right panel shows the beaded chain pulled out from a liquid with particle suspension.

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30

Wu, Jin Dan, Guo Qiang Cai, and Ji Ping Wang. "Synthesis of N-Alkyl-N,N-Dimethyl Quaternized Chitosan and its Application as Effective Absorbents towards Reactive Dye KN-R." Journal of Nano Research 43 (September 2016): 29–37. http://dx.doi.org/10.4028/www.scientific.net/jnanor.43.29.

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Several types of N-alkyl-N,N-dimethyl quaternized chitosan (QC) derivatives with different alkyl chains were prepared as effective adsorbents towards reactive dye KN-R. QC with long dodecanyl chain was insoluble in neutral solution but could self-assembled into spherical nanoparticles. The effects of degree of quaternization and alkyl chain length on the adsorption properties of KN-R onto QC were investigated. The results showed that a higher degree of quaternization of copolymers led to a higher adsorption capacity. At similar degree of quaternization, QC nanoparticles with longer alkyl chain

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31

Limpouchová, Zuzana, and Karel Procházka. "A Monte Carlo Study of Flexible Polymer Chain Conformations in Restricted Volumes. I. A Model for Insoluble Blocks Conformations in Swollen Cores of Multimolecular Spherical Block Copolymer Micelles." Collection of Czechoslovak Chemical Communications 58, no. 10 (1993): 2290–304. http://dx.doi.org/10.1135/cccc19932290.

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Monte Carlo simulations of chain conformations in a restricted spherical volume at relatively high densities of segments were performed for various numbers of chains, N, and chain lengths (number of segments), L, on a tetrahedral lattice. All chains are randomly end-tethered to the surface of the sphere. A relatively uniform surface density of the tethered ends is guaranteed in our simulations. A simultaneous self-avoiding walk of all chains creates starting conformations for a subsequent equilibration. A modified algorithm similar to that of Siepmann and Frenkel is used for the equilibration

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32

Meyra, Ariel G., Guillermo J. Zarragoicoechea, and Victor A. Kuz. "A magnetosome chain viewed as a bio-elastic magnet." Physical Chemistry Chemical Physics 18, no. 18 (2016): 12768–73. http://dx.doi.org/10.1039/c5cp07795h.

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A magnetosome, in magnetotactic bacteria, can be a magnetite or a greigite nanocrystal with a lipid and protein soft shell. This structure is modelled by a set of electrical dipoles, representing the soft membrane, enclosing a spherical nanoparticle with a centered magnetic dipole.

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33

Wang, Chao, Ying-Cai Chen, Shuang Zhang, Hang-Kai Qi, and Meng-Bo Luo. "Distribution of a polymer chain between two interconnected spherical cavities." Chinese Physics B 29, no. 10 (2020): 108201. http://dx.doi.org/10.1088/1674-1056/abaedc.

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34

Hall, Cameron L., Dominic Vella, and Alain Goriely. "The Mechanics of a Chain or Ring of Spherical Magnets." SIAM Journal on Applied Mathematics 73, no. 6 (2013): 2029–54. http://dx.doi.org/10.1137/120897973.

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35

Jackson, G., W. G. Chapman, and K. E. Gubbins. "Phase equilibria of associating fluids of spherical and chain molecules." International Journal of Thermophysics 9, no. 5 (1988): 769–79. http://dx.doi.org/10.1007/bf00503243.

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36

Fushiki, M. "An anisotropic hypernetted chain approximation for the spherical cell model." Chemical Physics Letters 154, no. 1 (1989): 77–82. http://dx.doi.org/10.1016/0009-2614(89)87441-x.

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37

Demchyshyn, A. B., and P. O. Selyshchev. "Formation of branched structures of swift heavy ions induced tracks." Nuclear Physics and Atomic Energy 12, no. 1 (2011): 78–85. https://doi.org/10.15407/jnpae2011.01.078.

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Formation of the extensive structures from separate tracks depending on the characteristics of projectile beam and on parameters of the swift heavy ions induced tracks are theoretically modeled in this paper. The paper considers tracks like a chain of deal spherical regions; it was assumed that each incident ion creates one such chain. The dependence of the surface area of the sample after exposure and removal of the modified substance from the irradiation dose, and the incidence beam angle of heavy swift ions and from the average distance between one track's spherical parts is found. Calculat

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38

Mamusa, Marianna, Paolo Tempesti, Arianna Bartolini, et al. "Associative properties of poly(ethylene glycol)–poly(vinyl acetate) comb-like graft copolymers in water." Nanoscale 11, no. 14 (2019): 6635–43. http://dx.doi.org/10.1039/c8nr10453k.

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Gubanova, Elizaveta M., and Nikolai A. Usov. "Ferromagnetic resonance spectra of linear magnetosome chains." Beilstein Journal of Nanotechnology 15 (February 5, 2024): 157–67. http://dx.doi.org/10.3762/bjnano.15.15.

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The ferromagnetic resonance (FMR) spectra of oriented and non-oriented assemblies of linear magnetosome chains are calculated by solving the stochastic Landau–Lifshitz equation. The dependence of the shape of the FMR spectrum of a dilute assembly of chains on the particle diameter, the number of particles in a chain, the distance between the centers of neighboring particles, the mutual orientation of the cubic axes of particle anisotropy, and the value of the magnetic damping constant is studied. It is shown that FMR spectra of non-oriented chain assemblies depend on the average particle diame

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Garcia, Elena A., Hanying Luo, Courtney E. Mack, and Margarita Herrera-Alonso. "Effect of side-chain length on solute encapsulation by amphiphilic heterografted brush copolymers." Soft Matter 16, no. 38 (2020): 8871–76. http://dx.doi.org/10.1039/d0sm01190h.

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Pereira, Candida, Jorge Ambrósio, and Amilcar Ramalho. "Contact Mechanics in Cylindrical Clearance Revolute Joints." Applied Mechanics and Materials 365-366 (August 2013): 412–15. http://dx.doi.org/10.4028/www.scientific.net/amm.365-366.412.

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A comparative study concerning the dynamics of chain drives mechanisms is presented in this article. The study compares the dynamic response using the spherical contact model proposed by Lankarani and Nikravesh with a new enhanced cylindrical model developed by the authors to describe the contact phenomenon in cylindrical clearance revolute joints. In the process, the influence of contact parameters and the numerical efficiency of using different contact modeling approaches are evaluated. It is demonstrated that cylindrical contact is stiffer than spherical contact. The spherical model represe

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Zhai, Zhaolan, Xinyan Yan, Zhanqian Song, Shibin Shang, and Xiaoping Rao. "Annular and threadlike wormlike micelles formed by a bio-based surfactant containing an extremely large hydrophobic group." Soft Matter 14, no. 4 (2018): 499–507. http://dx.doi.org/10.1039/c7sm02163a.

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Zhao, Huaixia, Liuyi Li, Jinyun Wang, and Ruihu Wang. "Spherical core–shell magnetic particles constructed by main-chain palladium N-heterocyclic carbenes." Nanoscale 7, no. 8 (2015): 3532–38. http://dx.doi.org/10.1039/c4nr07330d.

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KALYUZHNYI, YU. "Thermodynamics of the polymer mean-spherical ideal chain approximation for a fluid of linear chain molecules." Molecular Physics 94, no. 4 (1998): 735–42. http://dx.doi.org/10.1080/00268979809482366.

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Tian, Yaobin, Yan-An Yao, Wan Ding, and Zhiyuan Xun. "Design and locomotion analysis of a novel deformable mobile robot with worm-like, self-crossing and rolling motion." Robotica 34, no. 9 (2014): 1961–78. http://dx.doi.org/10.1017/s0263574714002689.

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SUMMARYThis paper presents a novel deformable mobile robot with five degrees of freedom (DOFs). The robot contains two equivalent expandable triangular platforms connected by three equivalent chains. Each platform is a regular triangle with a single DOF. Each chain consists of two links and three joints (one spherical joint at the middle of a chain, and one revolute joint at each end of the chain). Through kinematic and locomotion mode analysis, the robot exhibits three motion modes: worm-like, self-crossing, and rolling modes. The worm-like and self-crossing modes can be used for narrow passa

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Hernandez, S., S. Bai, and J. Angeles. "The Design of a Chain of Spherical Stephenson Mechanisms for a Gearless Robotic Pitch-Roll Wrist." Journal of Mechanical Design 128, no. 2 (2005): 422–29. http://dx.doi.org/10.1115/1.2167653.

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Although bevel-gear robotic wrists are widely used in industrial manipulators due to their simple kinematics and low manufacturing cost, their gear trains function under rolling and sliding, the latter bringing about noise and vibration. Sliding is inherent to the straight teeth of the bevel gears of these trains. Moreover, unavoidable backlash introduces unmodeled dynamics, which mars robot performance. To alleviate these drawbacks, a gearless pitch-roll wrist is currently under development for low backlash and high stiffness. The wrist consists of spherical cam-rollers and spherical Stephens

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Tultayev, Baurzhan, Gani Balbayev, Algazy Zhauyt, Aidos Sultan, and Aigerim Mussina. "Kinematic Synthesis of Mechanism for System with a Technical Vision." MATEC Web of Conferences 237 (2018): 03009. http://dx.doi.org/10.1051/matecconf/201823703009.

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A solution to the problem of synthesizing an initial three-dimensional kinematic chain with spherical and rotary kinematic pairs is presented. It is shown that this chain can be used as a structural module for structural-kinematic synthesis of three-dimensional four-link motion generating lever mechanisms by the preset positions of the in-and output links. This paper affects the actual today’s problem of optimal synthesis of spatial link mechanisms. In this regard, the task of developing methods for the synthesis of complex spatial link mechanisms with the desired laws of motion of the input a

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Khadilkar, Mihir R., and Arash Nikoubashman. "Self-assembly of semiflexible polymers confined to thin spherical shells." Soft Matter 14, no. 33 (2018): 6903–11. http://dx.doi.org/10.1039/c8sm01170b.

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The effect of spherical confinement on semiflexible polymers is investigated through simulations as a function of chain stiffness, contour length and shell thickness, exploring the nature of ordering and topological defects.

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Maiti, Binoy, Sankar Maiti, and Priyadarsi De. "Self-assembly of well-defined fatty acid based amphiphilic thermoresponsive random copolymers." RSC Advances 6, no. 23 (2016): 19322–30. http://dx.doi.org/10.1039/c6ra00336b.

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Side-chain stearic acid containing thermoresponsive and crystalline random copolymers are synthesized via RAFT technique, which self-assembled to spherical micellar structures in aqueous solution depending on stearate content in the copolymer.

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Nguyen, Phi-Hung. "Agricultural Supply Chain Risks Evaluation with Spherical Fuzzy Analytic Hierarchy Process." Computers, Materials & Continua 73, no. 2 (2022): 4211–29. http://dx.doi.org/10.32604/cmc.2022.030115.

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