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18021
Abnormal traffic detection method based on multi-scale attention feature enhancement
Published 2024-11-01“…Secondly, Dense-CNN and a multi-scale attention feature extraction network were employed to extract local and global features of the traffic data. Finally, a feature enhancement network was used to increase the distinctiveness and expressiveness of local and global features, which were then fused using a weighted fusion approach to achieve abnormal traffic detection. …”
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18022
A molecular toolkit for heterologous protein secretion across Bacteroides species
Published 2024-11-01“…To increase titers and enable flexible control of protein secretion, we develop a strong, self-contained, inducible expression circuit. Finally, we validate the functionality of our secretion carriers in vivo in a mouse model. …”
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18023
ERBB4 selectively amplifies TGF-β pro-metastatic responses
Published 2025-02-01“…Here, we report that ERBB4, a member of the ERBB receptor tyrosine kinase family, specifically promotes TGF-β′s metastatic response but not its anti-growth response. …”
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18024
Intelligent Boarding Modelling and Evaluation: A Simulation-Based Approach
Published 2021-01-01“…Secondly, we put forward a deterministic queue-ordered boarding method to improve it. Finally, we simulated and applied the strategy to a narrow-body aircraft A320 and a wide-body A380, both representative for their type of airplanes. …”
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18025
Time-frequency image and high-order spectrum characteristics based radar signal recognition
Published 2022-02-01“…Aiming at improving the accuracy of radar signal recognition under a low signal-to-noise ratio, a radar signal recognition algorithm based both on time-frequency image and high-order spectrum feature was proposed.Firstly, the time-frequency image was obtained by Choi-Williams distribution (CWD) transform, based on which the time-frequency image was preprocessed and the texture features were extracted by gray level co-occurrence matrix (GLCM) in sequence.Meanwhile, the symmetrical holder coefficient was used to extract the high-order spectral features of the signal.Then, the texture features and high-order spectrum features were form a new set of joint feature vectors.Finally, with the proposed feature vector the classification and recognition of radar signals were implemented by a support vector machine.The algorithm was verified on the data set with eight typical radar signals.Experimental results show that the recognition accuracy of different radar signals can achieve higher than 90% when the signal-to-noise ratio is -8 dB.…”
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18026
La comunità debole: cohousing tra utopia sociale e mercato capitalistico
Published 2014-04-01“…Among these, the absence of a political vision wider and more general, an ambiguous relationship with the marketing and the logic of capitalist market and, finally, a reminder at times casual to cultural values, symbols and discourses which refer to a logic of "good time past" and a now-lost "community spirit". …”
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18027
Recent advances in the biosynthesis of polysaccharide-based antimicrobial glycoconjugate vaccines
Published 2025-01-01“…It is based on three key aspects: the selection of oligosaccharyltransferase (OST), the use of different vaccine carrier proteins, and the enhancement of key concentrations in the uridine diphosphate (UDP)-sugar supply. Finally, the review highlights technical challenges and discusses future directions for the recombinant synthesis of glycoconjugate vaccines.…”
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18028
Rolling Bearing Diagnosis Based on Adaptive Probabilistic PCA and the Enhanced Morphological Filter
Published 2020-01-01“…To solve this problem, a parameter adaptive PPCA method based on grasshopper optimization algorithm (GOA) is proposed. Finally, combining the advantages of the above algorithms, a comprehensive rolling bearing fault diagnosis method named APPCA-EMDF is proposed in this paper. …”
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18029
Orígenes del feminismo en el Ecuador. Antología de Ana María Goetschel, compiladora
Published 2007-05-01“… La presente antología recoge una serie de escritos de mujeres que sentaron las bases del feminismo en Ecuador, desde finales del siglo XIX hasta mediados del XX. Una de sus principales riquezas es de tipo metodológico: consiste en el trabajo histórico de recopilación que está detrás de este esfuerzo, y que va más allá de las historiografías tradicionales, orientándonos hacia una sensibilidad y necesidad por acopiar la producción de las mujeres. …”
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18030
Research of the Combined Trajectory Planning of Descartes Space and Joint Space
Published 2017-01-01“…Through the closed loop vector method,kinematics equation is established and the space trajectory is fitted based B spline function model,the motion curve of the joint space planning and the motion curve of Descartes space planning and the motion curve of combined space planning are obtained. Finally,through the prototype,the test verification is carried out. …”
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18031
Attack detection model based on stacking ensemble learning for Internet of vehicles
Published 2024-12-01“…Secondly, GBDT was used to evaluate the importance of features and select sample data with important features to build a lightweight classifier. Finally, the <italic>k</italic>-fold cross-validation stacking method was used to reduce the probability of overfitting. …”
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18032
Type Synthesis of Mobile Mechanisms with Multiple Modes based on Single-loop Kinematic Chains
Published 2020-04-01“…Aiming at the functional requirements of mobile mechanisms with multiple modes,a design scheme based on single-loop kinematic chains is proposed.Firstly,according to the single-loop freedom formula,the conditions satisfying the single-loop and can be active are determined,and the combination relationships among the order of the constrained screw system,the number of bars,the number of kinematic pairs and the degree of freedom of the single-loop kinematic chains are obtained.Secondly,based on the screw theory,the geometric conditions of the axis of kinematic pairs under different constrained screw orders are obtained by using the virtual work principle.Taking the R and P pairs as the design units,all the possible combinations of the single-loop kinematic chains under different degrees of freedom are enumerated,and then the constructed single-loop kinematic chains are used as the body or branch to construct a kind of mobile mechanisms with multiple modes.Finally,the steps of type synthesis of mobile mechanisms with multiple modes and some design cases are given,which verifies the feasibility and practicability of the proposed design theory and design method.…”
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18033
Evaluation of chitosan based vaginal bioadhesive gel formulations for antifungal drugs
Published 2014-06-01“…In addition, anticandidal activities of formulations were determined. Finally, vaginal retention of chitosan gels in rats was evaluated by in vivo distribution studies. …”
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18034
Du champ à l’archipel des études énergétiques : quelles frontières pour les recherches francophones et anglophones ?
Published 2022-04-01“…Faced with plural and shifting representations of the "field", I will finally suggest the hypothesis of a multipolar articulation of energy studies, in the shape of an archipelago rather than a field. …”
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18035
Multigranular Uncertain Linguistic Prioritized Aggregation Operators and Their Application to Multiple Criteria Group Decision Making
Published 2013-01-01“…Furthermore, based on the MULPWA and MULPOWA operators, an approach to deal with multiple criteria group decision-making problems under multi-granular uncertain linguistic environments is developed. Finally, a practical example is provided to illustrate the multiple criteria group decision-making process.…”
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18036
A Roller Bearing Fault Diagnosis Method Based on LCD Energy Entropy and ACROA-SVM
Published 2014-01-01“…Third, the energy features extracted from a number of ISCs that contain the most dominant fault information serve as input vectors for the support vector machine classifier. Finally, the ACROA-SVM classifier is proposed to recognize the faulty roller bearing pattern. …”
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18037
Reconstructions of Einstein-Aether Gravity from Ordinary and Entropy-Corrected Versions of Holographic and New Agegraphic Dark Energy Models
Published 2014-01-01“…But for ECHDE and ECNADE, both types of scale factors can accommodate the transition from quintessence to phantom stages; that is, phantom crossing is possible for entropy-corrected terms of HDE and NADE models. Finally, we show that the models are classically unstable.…”
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18038
Characteristics of Wind Load on Spatial Structures with Typical Shapes due to Aerodynamic Geometrical Parameters and Terrain Type
Published 2018-01-01“…Finally, with comparative analyses of the wind pressure distribution of the roofs predicted by CFD under different cases, the effects of shape ratios, especially rise-span ratio, height-span ratio, length-span ratio, and so on, and terrain type on the wind pressure field of typical spatial structures were presented. …”
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18039
Hybrid Model–Data-Driven Radar Jamming Effectiveness Evaluation Method for Accuracy Improvement
Published 2025-01-01“…Secondly, the quality of training data is improved by data cleaning and model correction, after which the hybrid model is realized by training with simulated data and fine-tuning it with real-world data. Finally, the validity of the method is proved by simulation experiments, which show that the method is capable of effectively improving the accuracy of prediction and evaluation, and has good practicability. …”
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18040
Comprendre le changement institutionnel
Published 2014-12-01“…On the other hand, we mobilize the theoretical approach to characterize the first mode stamped as “hydraulicist” and to understand the determinants of its crisis. Finally, we show how the new mode attempts to address the limitations of the previous mode. …”
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