Existence of Multiple Solutions for Second-Order Problem with Stieltjes Integral Boundary Condition by Qing-Qing Hu, Baoqiang Yan

“…Firstly, a novel space is established and proved to be Hilbert one. Secondly, based on the above work, we obtain the existence of multiple solutions for our problem. …”
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Aeroelasticity in Turbomachines: Some Aspects of the Effect of Coupling Modeling and Blade Material Changes by François Moyroud, Georges Jacquet-Richardet, Torsten H. Fransson

“…On the other hand, the second, based on an eigenvalue approach, considers the feedback effect of the fluid on the structure. …”
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Synchronization of a Class of Chaotic Systems with Different Dimensions by Jiming Zheng, Juan Li

“…Firstly, the definition of synchronization of chaotic systems with different dimensions is introduced. Secondly, based on Lyapunov stability theorem and adaptive control method, an adaptive feedback hybrid controller and parameter adaptive laws are designed to realize synchronization of uncertain chaotic systems with different dimensions. …”
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Current development of satellite communications technology by GAN Zhong-min, ZHANG Geng-xin

“…A summary and review about some hot points in current satellite communications technology was given.Firstly,the associated concept and developments of broadband satellite communication were introduced,then the main technical issues that need to be solved was proposed,and examples of the typical application were given.Secondly,based on the introduction of current developments about mobile satellite communication,the characteristics and key technology were studied.Finally,the basic concept of space communication network was introduced,the network composition and individual function were given,and some new technology that need to be developed was analized.…”
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Methane Adsorption on Shale: Insights from Experiments and a Simplified Local Density Model by Luo Zuo, Yupu Wang, Wei Guo, Wei Xiong, Shusheng Gao, Zhiming Hu, Shen Rui

“…We herein present a method for predicting adsorption isotherms of methane on shale using the simplified local density (SLD) theory: First, the adsorption isotherms of methane on shale samples were measured and then its adsorption on illite, illite/smectite mixed layer, chlorite, type I, type II and type III kerogen was described with the SLD theory. Second, based on the SLD parameters obtained from adsorption data on kerogen, clay minerals and the composition of the studied shale, we predicted adsorption capacity of the shale using a linear combination of the adsorption capacities of the pure substances weighted by their relative abundance.…”
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Obrazy rodziców w poradnikach dla nauczycieli. Raport z badań wstępnych by Beata Adrjan

“…The conducted analysis also shows two approaches to building relationships between teachers and parents: first based on a strategy of conflict and confrontation with parents, and second based on a positive attitude towards parents and a joint work of teachers and parents for the benefit of children. …”
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Joint estimation of target time delay and Doppler frequency in passive radar system by ANGPeng W, IUTian-shuang Q, IJing-chun L, ANHai-feng T

“…A novel method of joint estimation of time delay and Doppler shift in passive radar system based on short-time fractional Fourier transform (STFRFT) was proposed.Firstly,the mathematical expression of the STFRFT time-frequency resolution was studied for the quantitative comparison.Secondly,based on the projection envelops of STFRFT,a new method to estimate the time delay and Doppler shift was put forward.Finally,the factors related with the estimation precision such as signal-to-noise ratio (SNR),parameters of Gaussian window were analyzed.The simulation results demonstrate that compared with the CAF based method,proposed method can get precise time delay and Doppler shift estimations with higher probability.…”
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Tasking planning based on task splitting and merging in relay satellite network by Run-zi LIU, Min SHENG, Cheng-yuan TANG, Jian-dong LI, Kai DU, Yong-an YANG

“…To handle the low planning efficiency of the tasks with too long or too short service time,a task planning scheme was proposed based on task splitting and merging for relay satellite systems.First,a task splitting and merging was developed to transfer the task requirements of user to task units which could be planned with high efficiency.Secondly,based on the parallel machine scheduling model,the optimization problem of the task unit planning to maximize the number of completed tasks in the network was built.Further,a heuristic polynomial time scheduling algorithm was proposed.Simulation results show that compared to the traditional scheme,the task planning scheme perform better in terms of completed task number,resource utilization and fairness.…”
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Structural Parameter Analysis and Optimization of Six-link Double-crank Slider Mechanism of Stamping Machine by Liu Shanmin, Wu Ziyue, Liu Shanzeng

“…Firstly,the kinematics of the six-link double-crank slider mechanism is deduced,and the function expression of each structural parameter is obtained. Secondly,based on the proposed optimization design mathematical model and MATLAB software,the optimization design,kinematics simulation analysis and kinematic characteristics of the six-link double crank slider mechanism are carried out. …”
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Less Conservative Stability Criteria for Neutral Type Neural Networks with Mixed Time-Varying Delays by Kaibo Shi, Hong Zhu, Shouming Zhong, Yong Zeng, Yuping Zhang, Li Liang

“…Firstly, some new delay-dependent stability results are obtained by employing the more general partitioning approach and generalizing the famous Jensen inequality. Secondly, based on a new type of Lyapunov-Krasovskii functional with the cross terms of variables, less conservative stability criteria are proposed in terms of linear matrix inequalities (LMIs). …”
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Global Asymptotic Almost Periodic Synchronization of Clifford-Valued CNNs with Discrete Delays by Yongkun Li, Jianglian Xiang

“…Since Clifford algebra is a unital associative algebra and its multiplication is noncommutative, to overcome the difficulty of the noncommutativity of the multiplication of Clifford numbers, we first decompose the considered Clifford-valued neural network into 2m2n real-valued systems. Second, based on the Banach fixed point theorem, we establish the existence and uniqueness of almost periodic solutions of the considered neural networks. …”
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Design and Analysis of Collaborative Unmanned Surface-Aerial Vehicle Cruise Systems by Man Zhu, Yuan-Qiao Wen

“…First, we build a collaborative model consisting of the cruise vehicles and communication, detection, and command-and-control networks for the USV-UAV. Second, based on an analysis of the problems faced by collaborative USV-UAV systems, we establish a model to evaluate the effectiveness of such synergistic cruises. …”
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Architecture modeling of satellite Internet simulation platform based on MBSE by LI Hongguang, LIU Yaoqi, ZHOU Yiqing, SHI Jinglin

“…Firstly, a DV-MBSE and an integration verification architecture with external software were proposed. Secondly, based on MBSE methodology, the requirements analysis, functional decomposition and interaction structure modeling of the top architecture of the satellite Internet simulation platform were carried out. …”
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High capacity cross layer optimization strategy for multi-hop wireless network with interference management by Lei SHI, Jiang-hong HAN, Yi SHI, Zhen-chun WEI

“…A high-throughput cross-layer optimization strategy based on the interference management for the multi-hop multi-base-station wireless network environment was proposed.In the physical layer the successive interference cancella-tion was used to realize the interference management.In the up layers,first the Voronoi algorithm was used to achieve the zoning,second based on the min-hop algorithm,the initial link allocation and multi-hop routing scheme was established,third optimize the scheme based on the multi-time-slot allocating or multi-hop routing,and at last try to find a better strategy in each iteration.Theoretical analysis shows that the strategy has a polynomial time complexity,and the simula-tion results show that the entire network throughput has a 2 to 5 fold increase by using interference management.…”
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Research of Wavelet Neural Network State Degradation Prediction of Rolling Bearing New Time Domain Index by Li Wenfeng, Xu Aiqiang, Sun Jijie, Fan Fuqin

“…The sensitivity of time domain index of fault is analyzed based on size of bearing fatigue damage and number of local damage. Secondly,based on the traditional time domain index,two more sensitive time domain index ‘TALAF ’and ‘THIKAT ’is searched. …”
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Stiffness Analysis of a New Low Coupling 3T1R Asymmetrical Parallel Mechanism by Xu Zhengxiao, Wu Guanglei, Shen Huiping

“…Firstly, the topological structure of the mechanism is described. Secondly, based on the virtual spring method, the stiffness model of each branch is established and its stiffness matrix is solved. …”
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Design and Kinetic Analysis of the Parallel Mechanism for Sorting and Transmitting of Automobile Parts by Ju Tao, Shen Huiping, Li Tao

“…Firstly, based on the topological design theory and method of azimuth characteristic equation, a two-degree-of-freedom 1T1R parallel mechanism is designed and analyzed. Secondly, based on the topological characteristic kinematics method, the positive symbolic position solution of the mechanism is solved. …”
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Verifiable multi-keyword search scheme based on improved Merkle-Tree authentication method by Youliang TIAN, Qin LUO

“…Aiming at the problem that the result verification method in the searchable encryption scheme was complicated,the search cost was high and the efficiency was low,it was difficult to meet the requirements of efficient verification and security of multi-keyword search results,a multi-keyword search scheme based on the improved Merkle-Tree authentication method was proposed.Firstly,a multi-keyword searchable algorithm was built to achieve efficient and accurate multi-keyword search by the bilinear mapping.Secondly,based on the improved Merkle-Tree authentication method of Bawa,the verification and dynamic update algorithm of the search scheme was constructed to reduce the calculation cost of the classic MHT to prevent the efficient verification and update of illegal operations such as data tampering,deletion,and forgery.Under the decision-type linear hypothesis and CDH hypothesis,the proof scheme meets the indistinguishability and unforgeability of ciphertext.…”
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Autopilot Design Method for the Blended Missile Based on Model Predictive Control by Baoqing Yang, Yuyu Zhao

“…Firstly, the nonlinear model of blended missiles is reduced into a piecewise affine (PWA) model according to the aerodynamics properties. Secondly, based on the equivalence between the PWA model and mixed logical dynamical (MLD) model, the MLD model of blended missiles is proposed taking into account the on-off constraints of lateral pulse jets. …”
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Competency in network use as a resource for citizenship: implications for the digital divide by Jääskeläinen, Pirkko; Savolainen, Reijo

“…First, the concept of network competency is discussed. Second, based on an empirical case study conducted in Finland, perceived network competency is explored as a resource for autonomous and participatory citizenship. …”
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