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  • SAGE Publications  (9)
  • 1
    Online Resource
    Online Resource
    Bionic Optimization Based Stability and Congestion Aware Routing Algorithm for Airborne Highly Dynamic Network
    SAGE Publications ; 2016
    In:  International Journal of Distributed Sensor Networks Vol. 12, No. 3 ( 2016-03-01), p. 8242497-
    Details
    In: International Journal of Distributed Sensor Networks, SAGE Publications, Vol. 12, No. 3 ( 2016-03-01), p. 8242497-
    Abstract: Airborne highly dynamic ad hoc UAV network has features of high node mobility, fast changing network topology, and complex application environment. The performance of traditional routing algorithms is so poor over aspects such as end to end delay, data packet delivery ratio, and routing overhead that they cannot provide efficient communication for multi-UAVs carrying out missions synergistically. A bionic optimization based stability and congestion aware routing algorithm—BSCAR algorithm—is proposed to solve these problems. This algorithm integrates biological behavior and dynamic source routing algorithm, which can sense the congestion level of routes and the stability of routes. Ant colony optimization algorithm and the mathematical model of Physarum's behavior exert effort in the process of route discovery and maintenance. The level of pheromone in routes is chosen as a standard to choose route and calculated by the mathematical model of Physarum's behavior. A new volatilization mechanism of pheromone is also introduced into the algorithm. Meanwhile, the algorithm can make adjustment to the variance of UAV formation to prevent the compromise of the network performance. The simulation results show that the BSCAR algorithm has superiority over traditional algorithms and it is dependable in battlefield environment.
    Type of Medium: Online Resource
    ISSN: 1550-1477 , 1550-1477
    URL: Article
    DOI: 10.1155/2016/8242497
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
    detail.hit.zdb_id: 2192922-1
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  • 2
    Online Resource
    Online Resource
    Group multiple lags consensus of fractional-order nonlinear leader-following multi-agent systems via adaptive control
    SAGE Publications ; 2019
    In:  Transactions of the Institute of Measurement and Control Vol. 41, No. 5 ( 2019-03), p. 1313-1322
    Details
    In: Transactions of the Institute of Measurement and Control, SAGE Publications, Vol. 41, No. 5 ( 2019-03), p. 1313-1322
    Abstract: In this paper, group multiple lags consensus of fractional-order leader-following multi-agent systems with nonlinear dynamics are investigated, in which two kinds of lag consensus are considered. One is said to be outergroup lag consensus, which means that different group leaders reach lag consensus. The other one is called innergroup lag consensus, that is to say, the followers will reach lag consensus with their own group leader. Based on Mittag–Leffler stability for fractional-order systems, algebraic graph theory, a class of novel control protocols is designed and the corresponding sufficient conditions are derived to guarantee the achievement of group multiple lags consensus. Furthermore, considering parametric uncertainties, an adaptive control technology is employed to solve the group multiple lags consensus for fractional order multi-agent systems, and the corresponding adaptive control protocols and sufficient conditions are proposed. Finally, numerical simulations are given to demonstrate the effectiveness of the obtained results.
    Type of Medium: Online Resource
    ISSN: 0142-3312 , 1477-0369
    URL: Article
    DOI: 10.1177/0142331218777570
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2025882-3
    SSG: 3,2
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  • 3
    Online Resource
    Online Resource
    Neutrophil/lymphocyte, platelet/lymphocyte and monocyte/lymphocyte ratios in schizophrenia
    SAGE Publications ; 2022
    In:  Australasian Psychiatry Vol. 30, No. 1 ( 2022-02), p. 95-99
    Details
    In: Australasian Psychiatry, SAGE Publications, Vol. 30, No. 1 ( 2022-02), p. 95-99
    Abstract: Neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), and platelet-to-lymphocyte ratio (PLR) have been used as markers of inflammation in mental illness. However, these indices have not been widely used in schizophrenia research in Chinese participants. Our aim was to use these ratios to explore the relationship between schizophrenia and inflammation. Methods: In this retrospective cross-sectional study, we collected total blood cell counts of 549 patients with schizophrenia and 930 healthy controls at Beijing Huilongguan Hospital in October 2019. We analyzed the subjects’ platelet, lymphocyte, monocyte, and neutrophil counts; compared the calculated NLR, MLR, and PLR between patients and healthy controls; and evaluated the correlations with age and gender. Results: Platelet and lymphocyte counts were significantly lower, while NLR and MLR were significantly higher, in patients with schizophrenia compared to healthy controls. Additionally, monocyte count, lymphocyte count, MLR, and NLR were different between male and female subjects. Conclusion: This study supports the inflammatory hypothesis of schizophrenia in the Chinese population.
    Type of Medium: Online Resource
    ISSN: 1039-8562 , 1440-1665
    URL: Article
    DOI: 10.1177/10398562211022753
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2003737-5
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  • 4
    Online Resource
    Online Resource
    Sedimentology and geochemistry of Middle–Upper Permian in northwestern Turpan–Hami Basin, China: Implication for depositional environments and petroleum geology
    SAGE Publications ; 2018
    In:  Energy Exploration & Exploitation Vol. 36, No. 4 ( 2018-07), p. 910-941
    Details
    In: Energy Exploration & Exploitation, SAGE Publications, Vol. 36, No. 4 ( 2018-07), p. 910-941
    Abstract: Studies have found that the Permian is another important stratum for petroleum exploration except the Jurassic coal measures within Turpan–Hami Basin recently. However, the knowledge of the depositional environments and its petroleum geological significances during the Middle–Late Permian is still limited. Based on the analysis about the sedimentological features of the outcrop and the geochemical characteristics of mudstones from the Middle Permian Taerlang Formation and Upper Permian Quanzijie Formation in the Taoshuyuanzi profile, northwest Turpan–Hami Basin, this paper makes a detailed discussion on the Middle–Late Permian paleoenvironment and its petroleum geological significances. The Middle–Upper Permian delta–lacustrine depositional system was characterized by complex vertical lithofacies assemblages, which were primarily influenced by tectonism and frequent lake-level variations in this area. The Taerlang Formation showed a significant lake transgression trend, whereas the regressive trend of the Quanzijie Formation was relatively weaker. The provenance of Taerlang and Quanzijie Formations was derived from the rift shoulder (Bogda Mountain area now) to the north and might be composed of a mixture of andesite and felsic volcanic source rocks. The Lower Taerlang Formation was deposited in a relatively hot–dry climate, whereas the Upper Taerlang and Quanzijie Formations were deposited in a relatively humid climate. During the Middle–Late Permian, this area belonged to an overall semi-saline water depositional environment. The paleosalinity values showed stepwise decreases from the Lower Taerlang Formation to the Upper Quanzijie Formation, which was influenced by the changes of paleoclimate in this region. During the Middle–Late Permian, the study area was in an overall anoxic depositional environment. The paleoenvironment with humid climate, lower paleosalinity, anoxic condition, and semi-deep to deep water during the deposition of the Upper Taerlang Formation was suitable for the accumulation of mudstones with higher TOC values.
    Type of Medium: Online Resource
    ISSN: 0144-5987 , 2048-4054
    URL: Article
    DOI: 10.1177/0144598718779100
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2026571-2
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  • 5
    Online Resource
    Online Resource
    Effect of Scientific Collaboration on Interdisciplinarity in Climate Change From a Scientometric Perspective
    SAGE Publications ; 2024
    In:  Sage Open Vol. 14, No. 2 ( 2024-04)
    Details
    In: Sage Open, SAGE Publications, Vol. 14, No. 2 ( 2024-04)
    Abstract: Plain Language Summary This study focus on how scientific collaboration affects interdisciplinarity of cited references in the field of climate change. The combined methods ( t test, Tukey’s post- hoc test, effect size, propensity score matching, and OLS regression analysis) were applied to reveal the effect of the levels and types of collaboration on interdisciplinarity. We found that research collaboration at the author and country/region levels significantly positive affected the disciplinary number of references and the integrated interdisciplinarity (named DIV), however, these effects were limited. Moreover, the more departments the coauthors came from, the more the interdisciplinarity was, but the less evenness the distribution of subject categories was. In addition, at author, institution and country/region levels, scientific collaboration has a negative effect on the balance of cited references. This study could provide valuable information to facilitate cross-disciplinary collaboration in climate change.
    Type of Medium: Online Resource
    ISSN: 2158-2440 , 2158-2440
    URL: Article
    DOI: 10.1177/21582440241241852
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2024
    detail.hit.zdb_id: 2628279-3
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  • 6
    Online Resource
    Online Resource
    Experimental study on the seismic performance of composite columns with an ultra-high-strength concrete-filled steel tube core
    SAGE Publications ; 2020
    In:  Advances in Structural Engineering Vol. 23, No. 4 ( 2020-03), p. 794-809
    Details
    In: Advances in Structural Engineering, SAGE Publications, Vol. 23, No. 4 ( 2020-03), p. 794-809
    Abstract: The ultra-high-strength concrete-encased concrete-filled steel tube column consists of a concrete-filled steel tube core and a rectangle-shaped reinforced concrete encasement. This article presents the seismic performance analysis of ultra-high-strength concrete-encased concrete-filled steel tube columns subjected to cyclic loading. Based on the measured load-lateral displacement hysteresis curves of six ultra-high-strength concrete-encased concrete-filled steel tube columns and two conventional RC columns, the seismic behaviours, such as the ductility, energy dissipation, stiffness and load-bearing capacity, were analysed. The effects of the arrangement of the stirrups and the layout of the prestressed steel strips on the seismic performance of the composite columns were critically examined. The test results indicated that the ductility and energy dissipation performance of the ultra-high-strength concrete-encased concrete-filled steel tube columns were increased by 74.8% and 162.7%, respectively, compared with the conventional columns. The configuration of the prestressed steel strip increased the ductility of the composite column by 28.9%–63% and increased the energy consumption performance by 160.2%–263.3%. By reducing the stirrup spacing and using prestressed steel strips, the concrete-filled steel tube core columns could be effectively confined, leading to a great enhancement in ductility, energy dissipation, stiffness and load-bearing capacity.
    Type of Medium: Online Resource
    ISSN: 1369-4332 , 2048-4011
    URL: Article
    DOI: 10.1177/1369433219879805
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2026561-X
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  • 7
    Online Resource
    Online Resource
    Automated Accident Detection in Intersections via Digital Audio Signal Processing
    SAGE Publications ; 2003
    In:  Transportation Research Record: Journal of the Transportation Research Board Vol. 1840, No. 1 ( 2003-01), p. 186-192
    Details
    In: Transportation Research Record: Journal of the Transportation Research Board, SAGE Publications, Vol. 1840, No. 1 ( 2003-01), p. 186-192
    Abstract: A system for automated traffic accident detection in intersections was designed. The input to the system is a 3-s segment of audio signal. The system can be operated in two modes: the two-class and multiclass modes. The output of the two-class mode is a label of “crash” or “noncrash.” In the multiclass mode of operation, the system identifies crashes as well as several types of noncrash incidents, including normal traffic and construction sounds. The system is composed of three main signal processing stages: feature extraction, feature reduction, and classification. Five methods of feature extraction were investigated and compared; these are based on the discrete wavelet transform, fast Fourier transform, discrete cosine transform, real cepstral transform, and mel frequency cepstral transform. Statistical methods are used for feature optimization and classification. Three types of classifiers are investigated and compared; these are the nearest-mean, maximum-likelihood, and nearest-neighbor methods. The results of the study show that the optimum design uses wavelet-based features in combination with the maximum-likelihood classifier. The system is computationally inexpensive relative to the other methods investigated, and the system consistently results in accident detection accuracies of 95% to 100% when the audio signal has a signal-to-noise-ratio of at least 0 decibels.
    Type of Medium: Online Resource
    ISSN: 0361-1981 , 2169-4052
    URL: Article
    DOI: 10.3141/1840-21
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2003
    detail.hit.zdb_id: 2403378-9
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  • 8
    Online Resource
    Online Resource
    Empty sella and periodic mental symptoms: A report of two cases
    SAGE Publications ; 2022
    In:  Australian & New Zealand Journal of Psychiatry Vol. 56, No. 7 ( 2022-07), p. 866-868
    Details
    In: Australian & New Zealand Journal of Psychiatry, SAGE Publications, Vol. 56, No. 7 ( 2022-07), p. 866-868
    Type of Medium: Online Resource
    ISSN: 0004-8674 , 1440-1614
    URL: Article
    DOI: 10.1177/00048674221078165
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2003849-5
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  • 9
    Online Resource
    Online Resource
    Experimental study on flexural performance of steel-reinforced concrete slim floor beams
    SAGE Publications ; 2019
    In:  Advances in Structural Engineering Vol. 22, No. 11 ( 2019-08), p. 2406-2417
    Details
    In: Advances in Structural Engineering, SAGE Publications, Vol. 22, No. 11 ( 2019-08), p. 2406-2417
    Abstract: In long-span floors, the use of composite slim floor beams can effectively improve the flexural stiffness and flexural capacity of the floor system. In order to strengthen the stiffness of the composite slim floor beams and achieve better fire resistance, an innovative steel-reinforced concrete slim floor beams is presented in this article. To investigate the flexural performance of the steel-reinforced concrete slim floor beams, static loading experiments were carried out on six specimens. The parameters of the test were the height of slim floor beams and the type and size of steel shape in the steel-reinforced concrete slim floor beams. On the basis of the experiment, the bending failure modes, flexural stiffness, and flexural capacity of the steel-reinforced concrete slim floor beams were studied comprehensively. The test results indicated that the steel-reinforced concrete slim floor beams exhibited great flexural capacity, large stiffness, and high ductility. The calculation formulas of flexural stiffness and flexural capacity were also proposed in this article. The analysis of flexural performance of the steel-reinforced concrete slim floor beams can provide a significant foundation for further research.
    Type of Medium: Online Resource
    ISSN: 1369-4332 , 2048-4011
    URL: Article
    DOI: 10.1177/1369433219841917
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2026561-X
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