3,066 research outputs found
Haemaphysalis anomaloceraea Teng, 1984 in Teng and Cui 1984
No full text6. Haemaphysalis anomaloceraea Teng, 1984 in Teng and Cui (1984b). An Oriental species whose hosts are unknown. M: Teng and Cui (1984b) F: unknown N: unknown L: unknown Redescription M: Teng and Jiang (1991) Note: Camicas et al. (1998) list Haemaphysalis anomaloceraea as a synonym of Haemaphysalis shimoga, while Kolonin (2009) treats Haemaphysalis anomaloceraea and Haemaphysalis shimoga as synonyms of Haemaphysalis taiwana.Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on page 149, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Haemaphysalis qinghaiensis Teng 1980
No full text132. Haemaphysalis qinghaiensis Teng, 1980b. An Oriental and Palearctic species, all of whose parasitic stages have been found on Artiodactyla: Bovidae, Perissodactyla: Equidae, and Lagomorpha: Leporidae. Haemaphysalis qinghaiensis is a very rare parasite of humans. M: Teng (1980b) F: Teng (1980b) N: Teng and Cui (1984a) L: Teng and Cui (1984a) Redescriptions M: Teng and Jiang (1991), Chen et al. (2014) F: Teng and Jiang (1991), Chen et al. (2014) N: Teng and Jiang (1991), Chen et al. (2014) L: Teng and Jiang (1991), Chen et al. (2014) Note: Camicas et al. (1998) state that Haemaphysalis qinghaiensis (as Haemaphysalis quinghaiensis) is an Oriental species; however, several records in Teng and Jiang (1991) are from Palearctic localities in China.Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on pages 188-189, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Haemaphysalis anomaloceraea Teng 1984
No full text6. Haemaphysalis anomaloceraea Teng, 1984 in Teng & Cui (1984). Oriental: 1) China (south) (Chen et al. 2010). Camicas et al. (1998) listed Haemaphysalis anomaloceraea as a synonym of Haemaphysalis shimoga, while Kolonin (2009) treated these names as synonyms of Haemaphysalis taiwana. Guglielmone et al. (2010 b, 2014) considered Haemaphysalis anomaloceraea valid, pending a decision concerning the positions of Camicas et al. (1998) and Kolonin (2009). However, the situation remains unchanged and Haemaphysalis anomaloceraea is treated as valid here. Zhao et al. (2021) did not list Haemaphysalis anomaloceraea as a Chinese tick.Published as part of Guglielmone, Alberto A., Nava, Santiago & Robbins, Richard G., 2023, Geographic distribution of the hard ticks (Acari: Ixodida: Ixodidae) of the world by countries and territories, pp. 1-274 in Zootaxa 5251 (1) on page 78, DOI: 10.11646/zootaxa.5251.1.1, http://zenodo.org/record/770419
Experimental study on the effects of compressor rotational speed on surge characteristics: Spatial and temporal frequencies
No full textSurge is a significant concern in compression systems utilizing turbo-compressors as the core component, as it induces violent fluctuations in pressure and flow rate, which can potentially damage the mechanical structure. Surge characteristics can be categorized into temporal and spatial frequencies. This paper presents an experimental study of surge's temporal and spatial frequencies in both a subsonic axial compressor and a subsonic centrifugal compressor setup. A key finding of the study is the distinction between surge's spatial and temporal frequencies. The surge spatial frequency is defined as the number of surge cycles per rotor rotation (1 rad), rather than per unit time (1 s). The experimental results yield two novel conclusions: (1) surge spatial frequency is insensitive to compressor rotational speed in the experimental setups used, whereas surge temporal frequency is sensitive; (2) the surge temporal frequency exhibits a quasi-linear relationship with the compressor rotational speed across both compressor setups. The repeated observations in the two rigs suggest that this quasi-linear relationship is not an isolated occurrence. A supplementary experiment, however, disproves the universality of the quasi-linear relationship across all compressor setups. To the authors' knowledge, this is the first study to analyze surge spatial frequency, report the quasi-linear relationship, and confirm its existence in this class of compression systems
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Novel fuzzy logic controllers with self-tuning capability
No full textTwo controllers which extend the PD+I fuzzy logic controller to deal with the plant having time varying nonlinear dynamics are proposed. The adaptation ability of the first self tuning PD+I fuzzy logic controller (STPD+I_31) is achieved by adjusting the output scaling factor automatically thereby contributing to significant improvement in performance. Second controller (STPD+I_9) is the simplified version of STPD+I_31 which is designed under the imposed constraint that allows only minimum number of rules in the rule bases. The proposed controllers are compared with two classical nonlinear controllers: the pole placement self tuning PID controller and sliding mode controller. All the controllers are applied to the two-links revolute robot for the tracking control. The tracking performance of STPD+I_31 and STPD+I_9 are much better than the pole placement self tuning PID controller during high speed motions while the performance are comparable at low and medium speed. In addition, STPD+I_31 and STPD+I_9 outperform sliding mode controller using same method of comparison study
Underlying slip/twinning activities of Mg-xGd alloys investigated by modified lattice rotation analysis
No full textThe inconsistencies regarding the fundamental correlation between Gd content and slip (twinning) activities of Mg alloys appeal further investigations. However, the traditional slip dislocations analysis by TEM is time-consuming, and that by SEM/EBSD cannot recognize the partial slip modes. These urge a more efficient and comprehensive approach to easily distinguish all potential slip modes occurred concurrently in alloy matrix. Here we report a modified lattice rotation analysis that can distinguish all slip systems and provide statistical results for slip activities in Mg alloy matrix. Using this method, the high ductility of Mg-Gd alloy ascribed to the enhanced non-basal slips, cross-slip, and postponed twinning activities by Gd addition is quantitatively clarified
Division and Unity: The History and Historiography of the Pennsylvania Constitution
No full textAbout the author:
Wen Li Teng is pursuing a double major in History and Political Science at the University of Chicago
The Menkaure Triad, Numerical Thinking, and Divine Configurations in Ancient Egypt
No full textAbout the Author
Formerly an undergraduate at the University of California, Los Angeles, Wen Li Teng is a transfer student at the University of Chicago. Wen Li is currently pursuing a major in History
Civilization and Nature: A Reading of Ancient Texts
No full textAbout the Author
Hailing from Singapore, Wen Li Teng is a first-year student at the University of California, Los Angeles. She intends to declare a major in History
The Advances in Conversion Techniques in Triboelectric Energy Harvesting: A Review
No full textA triboelectric nanogenerator (TENG) is a new transducer utilizing contact electrification and electrostatic induction to transform mechanical energy into electric energy. Due to its high energy density and flexibility, it can be employed to make electronic devices self-powered by harvesting ambient mechanical energy in many application scenarios, such as biomedical devices, wearable electronics, and Internet-of-Things (IoT) sensors. However, due to the time-varying and low internal capacitance of a TENG, it is challenging to extract electrical energy from it. Hence, good power conversion techniques are crucial in TENG energy harvesting systems. Currently, studies on dedicated integrated power conversion techniques are very limited. Due to the exponentially increasing research interests in TENG, a comprehensive study on the TENG energy harvesting system, emphasizing integrated-circuit (IC) power conversion techniques, is urgently needed. This paper summarizes and compares the state-of-the-art triboelectric energy harvesting systems, focusing on different power conversion techniques for output power enhancement. Some techniques, which have been widely used in other relevant energy harvesting systems, are also mentioned to inspire innovative design strategies for TENG systems.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic Components, Technology and MaterialsElectronic Instrumentatio
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