La pesca indígena de autoconsumo en Veracruz. Papel en la dieta y división genérica del trabajo by Verónica Vázquez, Lourdes Godínez, María Montes, Margarita Montes, Ana Silvia Ortiz

“…Generalmente los hombres pescan en lagunas y mar, mientras las mujeres comercializan el producto o pescan en esteros, lagunas y rÌos para el autoconsumo. …”
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Study on the Influence of Modified Design on the Dynamic Characteristics of the Helical Gear System by Wang Ruoyi, Yang Jianwei, Wang Jinhai

“…In order to study the dynamic characteristics of helical gears with different modified designs, a pair of standard gears and modified gears are taken as comparative experimental objects, and the dynamics model of a modified helical gear system is established based on Lagrange dynamics. An analytical method is used to solve the time-varying meshing stiffness of a modified helical gear, and the influence of different modification coefficients on the meshing stiffness is analyzed. …”
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Experimental and theoretical study of elastoplastic buckling of cylindrical shells filled with bulk material under the action of a transverse force by V.G. Bazhenov, E.G. Gonik, A.I. Kibets, M.V. Petrov, T.G. Fedorova, I.A. Frolova

“…The defining system of equations has been formulated in the Lagrange variables in a three-dimensional dynamic formulation. …”
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A Bivariate Chebyshev Spectral Collocation Quasilinearization Method for Nonlinear Evolution Parabolic Equations by S. S. Motsa, V. M. Magagula, P. Sibanda

“…The method combines quasilinearisation, the Chebyshev spectral collocation method, and bivariate Lagrange interpolation. In this paper, we use the method to solve several nonlinear evolution equations, such as the modified KdV-Burgers equation, highly nonlinear modified KdV equation, Fisher's equation, Burgers-Fisher equation, Burgers-Huxley equation, and the Fitzhugh-Nagumo equation. …”
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Políticas de educação patrimonial no Sul do Brasil by Rodrigo Manoel Dias da Silva

“…Por fim, realiza uma análise situacional das experiências de dois municípios brasileiros tombados por órgão de patrimônio, Laguna/SC e Antônio Prado/RS, para identificar e compreender essas mudanças nas políticas de educação patrimonial. …”
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Study on the Mechanism of Tooth Breakage Fault in Gear Rotor System Under Load Excitation by Haihan Zhang, Fang Ren, Jinhao Feng

“…Because of the time-varying meshing stiffness of gears and the unbalance of the rotor system， the coupling mathematical model of the gear rotor system is established based on the rotor dynamics and Lagrange equation， and the simulation model is established in Matlab/Simulink. …”
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Coral Reefs: Beyond Mortality? by Charles Sheppard

“…The mortality is patchy of course, depending on currents, location inside or outside lagoons, etc., but it is now possible to swim for over 200 m and see not one remaining living coral or soft coral on some previously rich reefs.…”
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Dynamics Analysis of Self-balancing Mechanism for Wounded-transfer Robot by Chunyan Zhang, Maosheng Li, Xiangyu Liu, Yu Wan

“…The dynamic model of self-balancing compensator is established by Lagrange method. The kinematics and driving force of self-balancing process are simulated and analyzed by Adams simulation software. …”
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Modeling and Analysis of Vehicle Shimmy with Consideration of the Coupling Effects of Vehicle Body by Xiaogao Li, Ning Zhang, Xianjian Jin, Nan Chen

“…Based on the Lagrange equation, a 9-degrees-of-freedom shimmy model with consideration of the coupling effects between the motions of vehicle body and the shimmy of front wheels and a 5-degrees-of-freedom shimmy model ignoring these coupling effects for a vehicle with double-wishbone independent front suspensions are presented here to study the problem of vehicle shimmy. …”
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Analysis of Dynamic Performance for Compound Pendulum Jaw Crusher with Bearing Clearance by Jiang Zhihong, Zhang Chengkun

“…Aiming to the impact of the bearing clearance on the dynamic performance of complex pendulum jaw crushers, a dynamic model of a complex pendulum jaw crusher with bearing clearance is established using the Lagrange multiplier method. Its correctness is verified through experiments, and the effects of different eccentric shaft speeds and clearance values on the dynamic performance of the crusher are analyzed. …”
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Energy efficiency maximization resource allocation algorithm in wireless-powered backscatter communication network by Yongjun XU, Bowen GU, Qianbin CHEN, Jinzhao LIN

“…In order to alleviate the energy consumption problem caused by the increasing number of Internet of things (IoT) nodes,an energy-efficient (EE) maximization based resource allocation algorithm was proposed for multi-carrier wireless-powered backscatter communication network.Firstly,a multivariable and nonlinear resource allocation model was formulated to jointly optimize transmit power,transmission time,reflection coefficient,and energy-harvesting allocation coefficient,where the maximum transmit power constraint of the power station and the minimum harvested energy constraint at the backscatter device were considered.Then,the original non-convex optimization problem was transformed into a convex one which was solved by using Dinkelbach’s method and the variable substitution approach.Furthermore,the analytical solution of the resource allocation problem was obtained based on Lagrange dual theory.Simulation results verify that the proposed algorithm has better EE by comparing it with the existing algorithm under pure backscatter mode and algorithm under the harvested-then-transmit mode.…”
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El retablo de La Visitación de Rafael y su comitente Branconio. Documentos inéditos by Francesco Desideri

“… El encargo del retablo de La Visitación de Rafael, conservado en el Museo del Prado, estaba lastrado hasta ahora por profundas lagunas historiográficas a causa de la falta de documentos relativos a él. …”
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Dynamic Modeling and Control of Electromechanical Coupling for Mechanical Elastic Energy Storage System by Yang Yu, Zengqiang Mi

“…The mechanical device of the complex system is considered as a node in generalized coordinate system, the terse nonlinear dynamic model of electromechanical coupling for the electromechanical system is constructed through Lagrange-Maxwell energy method, and the detailed deduction of the mathematical model is presented in the paper. …”
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On an Interpolation Based Spectral Homotopy Analysis Method for PDE Based Unsteady Boundary Layer Flows by S. S. Motsa

“…The proposed approach is based on an innovative idea of seeking solutions that obey a rule of solution expression that is defined in terms of bivariate Lagrange interpolation polynomials. The applicability and effectiveness of the expanded SHAM approach are tested on a non-linear PDE that models the problem of unsteady boundary layer flow caused by an impulsively stretching plate. …”
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A comparative analysis of methods for mapping groundwater pollution hazard: application to the Gallocanta Hydrogeologic Unit (Spain) by José María Orellana Macías, María Jesús Perles Roselló

“…The ultimate goal of the research is to analyse the effectiveness of several groundwater hazard indexes at the Gallocanta Lagoon Basin. To do so, the Hazard Index, the Danger of Contamination Index and the Pollutant Origin and its Surcharge Hydraulically method were applied and compare, and the potentialities and weaknesses of the resulting maps have been analysed. …”
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Resource management in blockchain-enabled heterogeneous edge computing system by Ping ZHANG, Shilin LI, Yiming LIU, Xiaoqi QIN, Xiaodong XU

“…In blockchain-enabled mobile edge computing (BMEC) systems,a new class of blockchain application related computation tasks was introduced to the system.Due to the differences of parallelism among computation tasks,heterogenous computing framework was introduced to suitably split various computation tasks on processors with vastly different processing power to achieve efficient task execution.Under the limited computation and communication resources,a system-wide utility maximization problem by jointly considering heterogeneous processor scheduling,computation and bandwidth resource allocation was formulated as a mixed-integer nonlinear programming problem.To solve the problem efficiently,the formulated problem was transformed into two sub-problems,namely application-driven heterogeneous processor scheduling and joint resource allocation,and a Lagrange-dual based algorithm was proposed.Simulation results show that the proposed scheme can effectively improve the system-wide utility of the BMEC system.…”
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Le littoral du Latium méridional et de la Campanie septentrionale entre le ix e et le iii e s. av. J.‑C. by Laura Déchery

“…The Tyrrhenian streams and winds combined with coastal lagoons generate many possibilities for mooring and shelter during cabotage along the coast. …”
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Subrepresentación política de las mujeres en México 1976-2003. Diputadas del Congreso de la Unión y del Congreso del Estado de Jalisco by Diana Melchor Barrera

“…This perspective allows to observe differences, similarities and inequalities between women and men (Lagarde, 2003: 9), as well as to analyze the social relationships that are based on sexual difference as a field of reproduction of gender inequality (Tepichin, 2016: 76). …”
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Master-Slave Composite Vibration Control of a Mobile Flexible Manipulator via Synchronization Optimization of Observation and Feedback by Jin-yong Ju, Yufei Liu, Honglin Kan, Chunrui Zhang

“…The mobile flexible manipulator system (MFMS), under variable load conditions, is taken as the research object. Based on Lagrange’s principle and the singular perturbation theory, the two-timescale subsystems dynamic models of the MFMS are constructed to set up the system payment function and the Hamiltonian function which correspond to the subsystems states and errors. …”
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Existence of normalized solutions for a Sobolev supercritical Schrödinger equation by Quanqing Li, Zhipeng Yang

“…This paper studies the existence of normalized solutions for the following Schrödinger equation with Sobolev supercritical growth: \begin{document}$ \begin{equation*} \begin{cases} -\Delta u+V(x)u+\lambda u = f(u)+\mu |u|^{p-2}u, \quad &\hbox{in}\;\mathbb{R}^N,\\ \int_{\mathbb{R}^N}|u|^2dx = a^2, \end{cases} \end{equation*} $\end{document} where $ p > 2^*: = \frac{2N}{N-2} $, $ N\geq 3 $, $ a > 0 $, $ \lambda \in \mathbb{R} $ is an unknown Lagrange multiplier, $ V \in C(\mathbb{R}^N, \mathbb{R}) $, $ f $ satisfies weak mass subcritical conditions. …”
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