202 research outputs found
Pseudohesperus sparsipunctatus Li & Zhou 2011, SP. NOV.
No full text<i>PSEUDOHESPERUS SPARSIPUNCTATUS</i> LI & ZHOU SP. NOV. (FIG. 28A–I) <p> <i>Type material:</i> Holotype: ♂, China: Zhejiang: Linan: Shunxi (30°12′N, 119°34′E), 400 m asl, 9.viii.2008,</p> <p>Zhou Yulingzi collected (IZ-CAS); Paratypes: 4 ♂♂, 6 ♀♀, same data as holotype (IZ-CAS).</p> <p> <i>Description:</i> Head and pronotum black, shining. Antennae black-brown, with antennomeres I–III to various extent reddish-brown, antennomere XI or antennomeres X–XI sometimes reddish-brown. Elytra black with posterior margin markedly reddish-brown. Scutellum black. Abdomen black with strongly iridescent lustre. Mandibles, maxillary and labial palpi, and legs reddish-brown.</p> <p>Body 8.98–9.80 mm long (HPL: 2.69–2.94 mm). Head of rounded quadrangular shape, 0.98–1.22 mm long, 1.31–1.55 mm wide, distinctly wider than long (HW: HL = 1.23–1.33). Tempora 0.25–0.33 mm long, almost evenly rounded, sparsely and coarsely punctate; eyes very large, moderately prominent, 0.49– 0.57 mm long, 1.75–2.33 times as long as tempora. Lateral portions of head with scattered, large setiferous punctuation; vertex largely impunctate. Entire head without microsculpture. Antennae long, antennomere I very long, thickened towards apex, antennomere III much longer than antennomere II, following antennomeres gradually decreasing in length, but all longer than wide, antennomere XI obliquely truncated.</p> <p>Pronotum slightly narrowed anteriad, 1.47– 1.63 mm long, 1.47–1.71 mm wide, slightly wider than head (PW: HW = 1.10–1.19); each side of broad impunctate midline with 12–15 scatter punctures, sometimes eight to ten punctures forming an irregular, dorsal row, disc without microsculpture.</p> <p>Elytra 1.80–2.04 mm long, 2.04–2.37 mm wide, along sides 1.16–1.25 times as long as pronotum, densely and finely punctate, punctures separated by one to two times their diameter. Scutellum large, triangular, densely and finely punctate, and pubescent.</p> <p>Abdomen a little narrowed behind, widest 1.80– 1.96 mm, densely and finely punctate, punctures separated by two to three times their diameter at base on tergites III–V and punctures separated by less than one puncture diameter at base on tergites VI–VII, punctation gradually becoming sparser toward apex of each tergite; tergites III–V with two basal carinae, elevated area between basal carinae densely and coarsely punctate.</p> <p>Male: Tergite VIII with arcuate apex. Sternite VIII with moderately wide, obtusely triangular medioapical emargination, partly filled by semimembranous extension (Fig. 28F). Genital segment with stylus of tergite IX simple, densely setose apically (Fig. 28G). Sternite IX with asymmetrical basal portion, apex deeply emarginate, each lobe prolong, forming modified rod-like extensions (Fig. 28H). Tergite X triangular, inconspicuously emarginate at apex, with variable number of apical setae (Fig. 28I).</p> <p>Aedeagus with median lobe distinctly exceeding paramere, narrowed into obtusely rounded apex (Fig. 28A); in lateral view, apical portion of median lobe slightly dilated (Fig. 28B); paramere widened at subapical portion, narrowed into obtusely pointed apex, face adjacent to median lobe with peg setae irregularly arranged along apical portion of paramere (Fig. 28C, D).</p> <p>Female: Sternite VIII with arcuate apex, lacking medioapical emargination. Genital segment with second gonocoxites moderately long, each with minute stylus bearing two long apical setae. Tergite X subtruncated at apex (Fig. 28E).</p> <p> <i>Etymology:</i> The specific epithet is derived from a combination of the Latin words <i>spars-</i> (sparse) and <i>punct-</i> (puncture), and refers to the sparse punctation on the pronotum.</p> <p> <i>Distribution:</i> At present only known from China (Zhejiang).</p> <p> <i>Remarks:</i> <i>Pseudohesperus sparsipunctatus</i> Li & Zhou sp. nov. is closely related to <i>P.</i> cf. <i>eustilbus</i> (Kraatz, 1859). <i>Pseudohesperus sparsipunctatus</i> Li & Zhou sp. nov. differs from <i>P. eustilbus</i> by distinctly sparser punctures on pronotum, much wider paramere, and larger number of peg setae on underside of paramere.</p>Published as part of <i>Li, Liang & Zhou, Hong-Zhang, 2011, Revision and phylogenetic assessment of the rove beetle genus Pseudohesperus Hayashi, with broad reference to the subtribe Philonthina (Coleoptera: Staphylinidae: Staphylinini), pp. 679-722 in Zoological Journal of the Linnean Society 163 (3)</i> on pages 712-714, DOI: 10.1111/j.1096-3642.2011.00731.x, <a href="http://zenodo.org/record/5442095">http://zenodo.org/record/5442095</a>
Eccoptolonthus fuyuensis Fei & Zhou 2021, sp. nov.
No full text5. Eccoptolonthus fuyuensis Fei & Zhou, sp. nov. (Figs. 7A–G, 8A–F) Type materials. Holotype. ♂, China: Zhejiang: Linan: Tianmu mountain (30º2006′ N, 119º2654′ E), 400 m, 28.VI.2009, collected by Wu Jie (IZ-CAS). Description. Length: BL= 7.19 mm (HPL= 2.21 mm). Length of different body parts: HW= 1.15 mm, HL= 0.95 mm (HW= HL= 1.25); ELL= 0.22 mm, TL= 0.17 mm; PL= 1.26 mm, PW= 1.16 mm (PW: HW= 1.10); EL= 1.66 mm, EW= 1.60 mm; AW= 1.50 mm. Head black with slightly iridescent lustre. Pronotum dark reddish-brown. Antennae with antennomere I dark brown, apical-half of antennomere II–III dark brown, basal-half of antennomere II–III black, antennomere IV–V dark brown; due to damage, characters of apical segments unknown. Elytra black with suture and posterior margin markedly reddish-brown. Scutellum dark reddish-brown. Abdomen black with strongly iridescent lustre, posterior margin of each tergite narrowly reddish-brown. Mandibles and labrum reddish-brown, III, IV segments of maxillary and labial palpi yellowish-brown, base part of maxillary palpi reddish-brown. Profemur and mesofemur yellowishbrown, metafemur dark reddish-brown, tarsomere I dark brown, tarsi II–IV yellowish-brown, tarsi V yellow. Head of subquadrate shape, subparallel-sided, obtusely rounded at basal angles, slightly wider than long. Tempora almost evenly rounded, moderately and coarsely punctate; eyes large slightly convex, about 1.29 times as long as tempora. Dorsal surface of head with moderately numerous, large setiferous punctures, becoming sparser toward vertex; vertex largely impunctate. Entire head with distinct and dense microsculpture of transverse waves. Antennae long, antennomere I about two times as long as antennomere III, distinctly thickened towards apex, antennomere III about 1.25 times as long as antennomere II, following antennomeres gradually decreasing in length, but antennomere IV–V distinctly longer than wide; due to damage, characteristics of other antennomeres unknown. Pronotum approximate rectangular, slightly convex, posterior angles markedly rounded, pronotum almost as wide as head, parallel-sided; punctation moderate and fine, punctures separated by three to five times their diameter, narrowly impunctate along midline, the punctures approximately equal in size, microsculpture similar to that on head. Elytra about 1.3 times as along as pronotum, about 1.37 times as wide as pronotum; scutellum large, triangular; elytra and scutellum densely and finely punctate, punctures separated by one to two times their diameter, punctures much finer than those on head and pronotum. Abdomen wide, narrowing towards apex, densely and finely punctate, punctures separated by two to three times their diameter; tergites III–V with two basal lines, elevated area between basal lines more sparsely punctate; punctation of basal portion of all tergites coarser than that on elytra, becoming sparser towards posterior margin of each tergite. Surface between punctures without microsculpture. Male: Sternite VIII moderately wide, approximate trapezoid, with obtusely triangular medioapical emargination (Figs. 7F, 8E). Genital segment with stylus of tergite IX simple, densely setae apically, and bearing two longer and stronger setae in the middle of tergite IX (Figs. 7G, 8F). Sternite IX with asymmetrical basal portion, apex deeply emarginate, with rod-like extensions (Figs. 7D, 8C). Tergite X approximately trapezoid with slightly triangular emargination (Figs. 7E, 8D). Aedeagus in ventral view with median lobe almost as wide as paramere, slightly expanded in the middle and narrowed into truncate apex, middle part of paramere narrowed, apex of paramere approximately circular, with dense peg setae irregularly arranged along apical portion of paramere (Figs. 7B, 8A); in lateral view, apical portion moderately bent ventrally, paramere elongate, apical-half of paramere ellipsoidal, some fine setae on apex. (Figs.7C, 8B). Remarks. Eccoptolonthus fuyuensis Fei & Zhou sp. nov. is most similar to Eccoptolonthus rutiliventris (Sharp, 1874) but can be easily distinguished by the sensory peg setae of paramere uniformly distributed at the apex of paramere; in lateral view, the length of sensory peg setae about 0.25 times as long as width of the paramere (obviously shorter in Eccoptolonthus rutilivenris (Sharp, 1874)); in ventral view, paramere distinctly constricted at middle, this point about 0.36 times as broad as median lobe of aedeagus. Eccoptolonthus fuyuensis Fei & Zhou sp. nov. can be easily distinguished from Eccoptolonthus gastralis (Sharp, 1874) by the following characters: male sternite VIII of Eccoptolonthus fuyuensis Fei & Zhou sp. nov. with a pair of long appendages, (Eccoptolonthus gastralis (Sharp, 1874) without); in ventral view, paramere distinctly constricted at middle. Etymology. The specific epithet refers to the name of the type locality, Fuyu Mountain (Tianmu Mountain was named as Fuyu Mountain in ancient times). Distribution. This species is at present known only from the type locality.Published as part of Fei, Xu-Dong & Zhou, Hong-Zhang, 2021, Revision of Eccoptolonthus Bernhauer (Coleoptera: Staphylininae: Philonthina) with descriptions of four new species from China, pp. 473-498 in Zootaxa 4949 (3) on pages 485-487, DOI: 10.11646/zootaxa.4949.3.3, http://zenodo.org/record/464046
Eccoptolonthus sparsipunctatus
No full text12. <i>Eccoptolonthus sparsipunctatus</i> (Li & Zhou, 2011) <p> Li & Zhou, 2011: 712–714 (<i>Pseudohesperus</i>, type locality: China, Zhejiang); Newton, 2015: 14 (transferred to <i>Eccoptolonthus</i>, catalog); Schülke & Smetana, 2015: 1021 (<i>Eccoptolonthus</i>, catalog); Li, 2019: 425 (<i>Eccoptolonthus,</i> catalog).</p> <p> <b>Materials examined.</b> <b>Holotype:</b> ♂, <b>China</b> <b>:</b> <b>Zhejiang:</b> Linan: Shunxi (30°12’N, 119°34’E), 400 m, 9.VIII.2008, Zhou Yulingzi collected (IZ-CAS); <b>Paratypes:</b> 4 ♂♂, 6 ♀♀, same data as holotype (IZ-CAS).</p> <p> <b>Distribution.</b> China (Zhejiang).</p>Published as part of <i>Fei, Xu-Dong & Zhou, Hong-Zhang, 2021, Revision of Eccoptolonthus Bernhauer (Coleoptera: Staphylininae: Philonthina) with descriptions of four new species from China, pp. 473-498 in Zootaxa 4949 (3)</i> on page 491, DOI: 10.11646/zootaxa.4949.3.3, <a href="http://zenodo.org/record/4640469">http://zenodo.org/record/4640469</a>
The cooperation relationship study on the golden waterway of the Yangtze River and economic development along the Yangtze River
No full textThe 2nd International Conference on Water Resource and Environment (WRE 2016)
No full textTable of contents 01 The eco-toxicological effects of cadmium stress on five ornamental plants Zhouli Liu, Wei Chen, Xingyuan He, Shuai Yu, Weihang Ding 02 Study on the formation and release mechanisms of hydrogen sulfide in Longtan coal mine Jianjun Liu, Yuliang Wu, Kaixiang Fan 03 Coral bleaching in the North Reef of China’s Xisha Islands in 2014 Yuanchao Li, Xinqing Zheng, Shiquan Chen, Haiqun Xie 04 Soil chemical characteristics in a Cunninghamia lanceolata stand suffering from ice-snow damage Jie Li, Zhuomin Wang, Li Xue 05 Diversity of understory vegetation was under a Cunninghamia lanceolata stand suffering from ice-snow damage Zhiyang Lie, Weilong Huang, Tongtong Zhou, Li Xue 06 The effect of water, nitrogen and harvesting time on yield and biomass allocation of Helianthus tuberosus L. Kai Gao, Tiexia Zhu 07 The vertical variation of microbial communities in the sediment of sea cucumber pond Weiteng Mao, Pei Yu, Xinfang Lv, Yunchun Li 08 Indicating significances of alpine plant functional groups to environmental change Peixi Su, Rui Shi 09 Research on the daily CH4 fluxes of soil in summer mangrove community at Yingluogang of Guangxi, China Yong Jiang, Xingbin Chen, Shichu liang 10 Beach protection structures in middle and lower reaches of Yangtze River Junfeng Xu 11 Social responsibility management of large dam project with owner as core: an empirical case in China Jiwei Zhu, Zhao Zhai, Linan Zhou, Yun Le, Li Cao 12 The ecological function value assessment analysis of urban waterfront Jiwei Zhu, Ping Lu, Zhiqian Huang, Bei Zhou 13 Mechanism of diurnal osmotic potential changes and adjustment of three Caragana species in different habitats of the Inner Mongolia Plateau Zhirong Zheng, Shihai Lv, Chaoyang Feng 14 Biodiversity of phytoplankton and environmental influences analysis of Longfeng Wetland, China Nan Song, Yan Liu, Xinxin Lu, Yawen Fan 15 The effect of human activities on culturable soil microbes from Yaoquan Mountain in Wudalianchi, China Jianfei Guan, Jihua Wang, Xueping Zhan
Study of tunnel-induced ground settlement using machine learning and remote sensing techniques
No full textIncludes bibliographical references.2022 Summer.Tunnel excavation in urban settings inevitably disturbs the ground and leads to surface settlement. Such tunnel-induced ground subsidence should be limited to a tolerable threshold to avoid affecting aboveground structures. In this research, Machine Learning (ML) techniques are applied to predict tunnel-induced ground subsidence based on in-situ monitoring data collected from the Yuji tunnel project in China. Interferometric Synthetic Aperture Radar (InSAR), a remote sensing technique, is applied to map uneven ground subsidence along the tunnel alignment in the context of twin tunnels in downtown Los Angeles, USA.
Urban tunnel projects are typically constructed within a limited period, leading to small ground monitoring datasets ranging from 10 s to 100s being available to access. The effectiveness of ML application with a small dataset is discussed. Seven widely applied ML models in worldwide tunnel projects are selected and compared, including multiple linear regression, decision tree, random forest, gradient boosting, support vector regression, back-propagation neural network, and permutation importance-based back-propagation neural network models. Results demonstrate the non-linear relation between ground subsidence and correlated parameters. Our study reveals that the RF algorithm outperforms other models with the highest model prediction accuracy (0.9) and best stability/variance (3.02 × 10–27).
ML techniques provide new insight into tunneling excavation from a data-driven perspective. However, engineers desire to produce physically consistent results from ML models. This study proposed a physic-informed machine learning (PIML) framework to fulfill the gap between physics theories and ML architectures, taking advantage of the generalizability of physics-based models and the robustness of data-driven ML models. Physics models and theories were applied to guide input selection and architecture design of a developed voting regressor model formed by three identified well-performing base algorithms, including random forest, gradient boosting and decision tree models. The proposed PIML framework aims to improve ML predicting performance and interpretability.
Datasets for ML analysis are collected from in-situ measurements, which are monitored section to section along the tunnel alignment. In order to have a synoptic view of ground subsidence along the entire tunnel alignment, the InSAR technique is applied to map tunneling-induced ground subsidence that occurred concurrently with the construction of twin tunnels in downtown Los Angeles, USA. The average ground subsidence rate map indicates that the ground settlements along tunnel alignment are unevenly distributed. ML-based parametric analysis reveals that such an uneven subsidence field is geologically sensitive, dominated by the thickness of artificial fill and alluviums above tunnel alignment.
Together, these insights may improve the application of ML and InSAR techniques to tunnel-induced ground settlements. Also, this study can serve as a reference for geotechnical engineers to apply ML and InSAR techniques in practical tunnel projects
Hot-carrier-mediated Chemical Processes in Plasmonic Photocatalysis
No full textPlasmonic nanomaterials, featured with high optical cross-section resulted from the induction of the collective oscillation of free electrons in metallic nanostructures, known as localized surface plasmon resonance, by the alternative electromagnetic wave in light, is emerging as a new promising photocatalyst. Hot carriers derived from the non-radiative decay of LSPR are capable in activating chemical bond, in an intrinsically different mechanism from the conventional thermal-driven means, and provide the possibility in achieving chemical transformation in milder conditions with sustainable energy. When further combined with catalytically active materials in a synergic way to form the antenna-reactor complexes, the versatility and efficiency of plasmonic photocatalysts are greatly boosted. In this thesis, I will present four plasmonic photocatalysts, classified into two categories, for three reactions to show the stepwise understanding of the structure-property-function relationship in plasmonic photocatalysts and subsequent improvement in the design of photocatalysts. The first part, including chapters 3 and 4, involves applying monometallic plasmonic nanomaterials in H2 activation. Au and Al nanomaterials, though being inert towards H2 activation if driven thermally, are demonstrated to be active in hydrogen dissociation under light excitation. They both exhibit linear intensity dependence in photocatalytic H2-D2 exchange reaction and H-H bond activated by the electronic transition of initial hot carriers is proposed to be the dominated mechanism. In contrast, Cu nanoparticles exhibit an S-shape intensity dependence in photocatalytic H2-D2 exchange reaction with a more-than-1 external quantum yield of light-to-chemical conversion. The hot carrier multiplication resulted from thermalization of hot carriers through electron-electron scattering plays a crucial role in the Cu system. The rate-determining step (RDS) is believed to be associative desorption of HD, different from the dissociative adsorption of H2/D2 on Au and Al surface, making the transition barrier of hot carriers low and the thermalized hot carriers effective. Next, I designed a new antenna-reactor structure, surface alloy, to incorporate materials with the favorable electronic structure for activation of specific molecules into plasmonic nanomaterials with intent to achieve better usage of hot carriers. Cu-Ru surface alloy was prepared and shows highly efficient photocatalytic activity towards ammonia decomposition reaction, making it feasible for studying the effect of plasmon-mediated hot carriers on the activation barrier of chemical reactions. By carefully tuning the loading ratio of Cu and Ru, I further synthesized single-atom-alloy plasmonic photocatalyst composed of a Cu core antenna with atomically dispersed Ru sites reactor on the surface. This antenna-reactor complex exhibits outstanding coke resistance in methane dry reforming reaction under illumination. Both of the hot carriers and single-atom structure were demonstrated to be essential for the observed stability. This thesis increases the knowledge in the mechanism of hot-carrier-mediated chemical reaction and guides the design of new generation of plasmonic photocatalysts
A Bibliometric Analysis Of Emotional Intelligence And Leadership
No full textThis research aims to conduct a bibliometric analysis of studies on the relationship between emotional intelligence and leadership. The investigation encompasses a compilation of 1136 articles sourced from Scopus, spanning from 1996 to 2023. The data analysis process involved utilizing the VOSviewer software, which facilitated the creation of maps depicting co-authorship and keywords. A combination of descriptive statistics and social network analysis techniques were employed to analyze the data. Within the 1136 articles, 105 author keywords were referenced at least five times. These keywords were subsequently categorized into 11 clusters. The prevalent terms included “training,” “competence,” “job satisfaction,” “self-awareness,” and “organizational citizenship behavior.” An exploration of the temporal aspect of the data revealed that recent scholarly interest has gravitated toward topics such as “higher education,” “job performance,” “leader development,” “soft skill,” and “employee engagement.” This study’s findings suggest potential avenues for further research in the realm of emotional intelligence and leadership. Subsequent researchers might consider conducting studies in these domains to contribute to the evolving knowledge system
A hybrid drought index combining meteorological, hydrological, and agricultural information based on the entropy weight theory
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