Correction algorithm of migration through Doppler cells for space target in bistatic ISAR by Bao-feng GUO, Chao-xuan SHANG, Xin WANG, Jun-tao MA, Jian DONG

“…Aiming at the problem of migration through Doppler cells in bistatic ISAR,based on bistatic ISAR turntable model,the reason of migration through Doppler cells from two aspects of echo model and the relative speed changes of scattered points was analyzed.The correction algorithm was presented based on range cell phase compensation.Firstly,target rotating rate was estimated through the geometrical relationship of bistatic stations and target.Secondly,the algo-rithm divided the echo data into two parts,and then imaging separately,getting two images of different angles of view.And the rotating center was estimated according to the maximum criterion of rotating correlation,which was used to range scaling.The migration through Doppler cells was corrected through phase compensation of each range cell at last.The simulation result show that the method could solve the problem of migration through Doppler cells,and could im-prove the image quality.…”
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Entanglement content of kink excitations by Luca Capizzi, Michele Mazzoni

“…Abstract Quantum one-dimensional systems in their ordered phase admit kinks as elementary excitations above their symmetry-broken vacua. While the scattering properties of the kinks resemble those of quasiparticles, they have distinct locality features that are manifest in their entanglement content. …”
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Direct localization algorithm of the aerial target based on external radiation source by Nan XIA, Danyang GAO, Baohui XING, Yaning WANG

“…In order to improve the accuracy of aerial target location and ensure its concealment, a direct location algo-rithm of the aerial target based on external radiation source was proposed.Fixed broadcast signals were used as transmit-ting sources, and the signals scattered by the aerial targets were received by multiple receivers.A direct relationship be-tween the synchronized multi-dimensional baseband signals and the position coordinates of the target was established, and then the spatial cross-spectrum function and joint matching function were constructed.Through iterative spectral peak search, the positioning results of the aerial target could be optimized, and the impact of direct signals and multipath signals on the ground could be effectively suppressed.Simulation results show that the performance of the proposed al-gorithm is better than that of the traditional two-step localization method and other direct localization methods in the case of low signal-to-noise ratio (SNR), and it can achieve high-precision localization of the three-dimensional mobile target.…”
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Le chêne, le cheval, le bûcheron. Une collection d’écorçoirs des XIXe et XXe siècles au musée des civilisations de l’Europe et de la Méditerranée by Narjys El Alaoui

“…Although the documents concerning their manufacture and use are scarce, brief, scattered and unknown, they have the credit of being sometimes contemporary to the tools, even if we may regret the lack of illustration of the tool in its historical context. …”
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Lanreotide Autogel in the Treatment of Persistent Diarrhea following a Total Colectomy by Patrick Schoeters, Karl De Pooter

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Maira Valley (Piedmont): a territorial laboratory of a new mountain population by Giacomo Pettenati

“…As a consequence, many areas of the valley – previously affected by depopulation and no longer able to serve their functions - repopulated thus countering the process of social and economic marginalization. …”
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Management and sustainability of ground-mounted solar parks requires consideration of vegetation succession as an omnipresent process by Markus Zaplata

“…Understanding succession provides the background for interrelationships, and explains why, in large solar parks, the occurrence of large operational disruptors, such as trees, cannot be sustainably countered with the usual maintenance measures. Woody plants benefit from the thousands of safe sites amongst the modular panel constructions, and softwoods often avoid being cut due to their flexibility, or grow back from their stumps. …”
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Gothic and Quasi-Gothic Aesthetic and the Mise en Abîme in Two Examples of Gay Men’s Life Writing About AIDS by Tomasz BASIUK

“…His interest in himself and others is a form of love, capable of countering the stigmatizing shame, which Thompson struggles to overcome with his Jungian insights.…”
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Analysis of the Russian industry development in the context of import substitution by M. A. Korkin

“…The article is devoted to the study of the effective development of the Russian industry at a difficult stage of countering sanctions and the conditions of import substitution. …”
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Cognitive waveform design for radar-communication transceiver networks by Yu YAO, Yanjie LI, Lenan WU, Pu MIAO, Xiaoyu TANG

“…The system architecture for cognitive radar-communication (CRC) transceiver was proposed.A cognitive waveforms design approach, which is suitable for simultaneously performing both data communication and target detection was presented.This approach aims at estimating target scattering coefficient (TSC) from the radar scene and facilitating high-data-rate communications.In order to minimize the mean square error (MSE) of the TSC, a convex cost function was established.The peak to average power ratio (PAPR)-constrained optimal solution was achieved by applying the Kalman filtering-based strategy to design the set of ultra-wideband (UWB) transmission pulses and embed into them the information data with the M-ary position phase shift keying modulation technique.In addition to theoretical considerations, the simulation results show an improvement in TSC estimation and target detection probability as the number of iterations increases, while still transmitting data rates in the range of several Mbit/s with low bit error rates between CRC transceivers.…”
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DESIGN OF RE-DIRECTIVE CRASH-CUSHION BASED ON COLLISION SAFETY by LEI ZhengBao, CHEN XiaoYong, ZHANG JiaBo

“…Aiming at the current situation that the energy absorbing unit of the re-directive crash-cushion squeezes the corrugated plates on both sides during the collision deformation,causing secondary damage caused by the wavy plate scattering,an "H"type energy absorbing unit configuration is proposed. …”
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5D Hyperchaotic Image Encryption Scheme Based on Fibonacci Q-Matrix by Geeta Biban, Renu Chugh, Anju Panwar, Mohammad Sajid

“…The fortitude of the designed encryption scheme is concluded by countering the algorithm on statistical analysis like histogram analysis, chi-square test, correlation coefficient analysis, information entropy analysis, differential attacks (NPCR, UACI), and NIST suite test. …”
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A historical overview of the Wärğəḥ Muslim community in the Christian highland of Šäwa by Deresse Ayenachew

“…In north Šäwa, the community of Wärğəḥ has established scattered pockets of villages between Däbrä Berhan and Säbäta towns. …”
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Coalescing hardcore-boson condensate states with nonzero momentum by C. H. Zhang, Z. Song

“…The fundamental mechanism behind this phenomenon is uncovered through analyzing the scattering dynamics of many-particle wavepackets at the non-Hermitian boundaries. …”
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Reduction algorithm based on supervised discriminant projection for network security data by Fangfang GUO, Hongwu LYU, Weilin REN, Ruini WANG

“…In response to the problem that for dimensionality reduction, traditional manifold learning algorithm did not consider the raw data category information, and the degree of clustering was generally at a low level, a manifold learning dimensionality reduction algorithm with supervised discriminant projection (SDP) was proposed to improve the dimensionality reduction effects of network security data.On the basis of the nearest neighbor matrix, the label information of the raw data category was exploited to construct a supervised discriminant matrix in order to translate unsupervised popular learning into supervised learning.The target was to find a low dimensional projective space with both maximum global divergence matrix and minimum local divergence matrix, ensuring that the same kind of data was concentrated and heterogeneous data was scattered after dimensionality reduction projection.The experimental results show that the SDP algorithm, compared with the traditional dimensionality reduction algorithms, can effectively remove redundant data with low time complexity.Meanwhile the data after dimensionality reduction is more concentrated, and the heterogeneous samples are more dispersed, suitable for the actual network security data analysis model.…”
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L’enseignement de l’architecture à l’Académie royale de peinture, sculpture et architecture de Toulouse by Marjorie Guillin

“…The surviving documentation concerning the whole institution and any graphic sources are however incomplete and scattered, and thus the aim here is only to take a preliminary look at the case of the training provided in architecture, and to draw some conclusions from this.…”
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The influence and spatial spillover effects of producer services agglomeration on urban green development in China. by Weimin Gong, Chengxin Wang, Dan Men, Ming Zhang, Jian Wang

“…In contrast, the diversification agglomeration level of producer services has demonstrated a consistent upward trajectory, characterized by a spatial distribution that is broadly scattered but concentrated on a smaller scale. Regarding China's urban green development, its efficiency shows a dynamic upward trend and displays characteristics of agglomeration and contiguous development in space. …”
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Construction of cyberspace security course system of comprehensive practice and graded customs clearance by Kai CHEN, Cai FU, Deqing ZOU, Weizhong QIANG, Yongquan CUI, Lansheng HAN

“…The demand of cyberspace security promotes the development of cyberspace security,and the core task of the development of cyberspace security is to train high-quality professionals.In view of the problems existing in the current training of cyberspace security talents,such as scattered knowledge system,lagged professional knowledge,independent course content and insufficient interest in learning,according to the students' learning rules and cognitive process,a top-down approach is adopted to construct the curriculum system,aggregate and refine practical knowledge and skills,and a hierarchical training model of cyberspace security comprehensive practice is put forward.Breaking through the traditional learning assessment mechanism,the customs clearance mode of game is introduced.By setting test barriers for each knowledge and skill point,each training level and final comprehensive training students' ability level is examined in the way of actual customs clearance finally.Therefore,the course system of comprehensive practice and graded customs clearance of cyberspace security is constructed in order to cultivate high-quality cyberspace security professionals.…”
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Les industries de quincaillerie et de ferronnerie décorative dans la région de Tinchebray (Orne) : histoire d'un pôle industriel rural by Monique Le Chêne

“…Ironmongery and decorative metalwork today occupy more than six hundred workers in eleven firms scattered across an area of about five kilometres around the village of Tinchebray in the Orne department. …”
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An Improved DR Algorithm Based on Target Extrapolating in ROIA Cloud Platform by Dong Liu

“…However, as ROIA servers focused on several data centers in cloud computing rather than being scattered in many areas, it will increase in part users' network delays and affect their user experiences in ROIA. …”
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