472 research outputs found
Phlugiolopsis breviproceris Zheng & Shi & Chang 2023, sp. nov.
No full textPhlugiolopsis breviproceris sp. nov., Chinese name ÑẊṘAE (Fig. 2) Description. Male. Body small. Fastigium verticis conical, apex rounded, with a longitudinal sulcus on dorsal surface. Eyes nearly globular, slightly protruding forward. Apical segment of maxillary palpus nearly as long as subapical one, apical area inflated. Pronotum slightly elongate backwards, anterior margin almost straight, posterior margin rounded; lateral lobe longer than deep, humeral sinus reduced. Most parts of tegmina concealed beneath pronotum, terminals not surpassing posterior margin of pronotum, apices rounded; hind wings absent. All femora without spines on ventral surfaces. Fore coxa with 1 spine; fore tibia with 5 inner and 6 outer spines on ventral surface; tibial tympana open on both sides, long oval. Middle tibia with 4 spines on inner margin and 5 spines on outer margin of ventral surface. Genicular lobes of hind femur with apices rounded; hind tibia with 21–25 spines on both sides of dorsal surface separately, bearing 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs. Posterior margin of tenth abdominal tergite shallowly concave. Cercus robust at base, gradually narrowing, apex rounded; dorsal surface with an obtuse short process at base (Fig. 2D, arrow); subbasal area with a digital process on ventral surface (Fig. 2D, arrow), which slightly curved forward near middle area, apex rounded. Basal area of subgenital plate (Fig. 2F) broad, which split in midline, posterior margin protruding backwards; styli comparatively long, positioned on subapex of subgenital plate. Female. Unknown. Coloration. Body yellowish brown. Eyes brown. Dorsal area of head with 4 longitudinal dark brown stripes. Scape and pedicel brown, lamellar uplift on internal margin of antennal socket blackish brown, flagellum with annulate black annulate stripes. Disc of pronotum with a broad longitudinal brown stripe, posterior half slightly expanded. With pinniform brown stripes on outer surface of hind femur, genicular lobes black. Tibial spines brown. Trasi blackish brown. Abdomen dark brown. Material examined. Holotype: ♁, Laoshan, Malipo, Yunnan, 30 July, 2021, coll. Qi Guo and Yanhao Duan, Paratypes: 2♁, Laoshan, Malipo, Yunnan, 30 July, 2021, coll. Qi Guo and Yanhao Duan. Other specimens: 4♁, Laoshan, Malipo, Yunnan, 30 July, 2021, coll. Qi Guo and Yanhao Duan; 1♁, Gula, Funing, Yunnan, 19 July, 2021, coll. Qi Guo and Yanhao Duan; 1♁, Daweishan, Pingbian, Yunnan, 8 August, 2021, coll. Qi Guo and Yanhao Duan. Measurements (mm). Body: ♁5.8–7.2; pronotum: ♁3.2–3.6; tegmen: ♁1.3–1.4; hind femur: ♁7.5–7.8. Discussion. The new species resembles Phlugiolopsis circolobosis Bian, Shi & Chang, 2013, but differs in: male cercus of new species robust, apex rounded, with an obtuse short process on dorsal surface at base. Etymology. The name of new species is derived from male cercus with a short process at base, from Latin ‘brev -’ (short) and ‘procer -’ (process). Distribution. China (Yunnan).Published as part of Zheng, Mengjia, Shi, Fuming & Chang, Yanlin, 2023, Two new species of the genus Phlugiolopsis (Tettigoniidae: Meconematinae) and the male description of Phlugiolopsis circolobosis Bian, Shi & Chang, 2013 from Yunnan, China, pp. 67-74 in Zootaxa 5296 (1) on pages 70-71, DOI: 10.11646/zootaxa.5296.1.6, http://zenodo.org/record/797020
Phlugiolopsis circolobosis Bian, Shi & Chang 2013
No full text<i>Phlugiolopsis circolobosis</i> Bian, Shi & Chang, 2013 <p>(Fig. 3)</p> <p> <i>Phlugiolopsis circolobosis</i> Bian, Shi & Chang, 2013. <i>Zootaxa</i>, 3701: 163.</p> <p>Type specimen: female; type locality: Daweishan, Pingbian, Yunnan, China; location of type specimen: Museum of Hebei University.</p> <p> <b>Supplementary description.</b> Male. Body small. Fastigium verticis conical, apex rounded, furrowed dorsally. Eyes nearly globular, slightly protruding forward. Apical segment and subapical one of maxillary palpus subequal in length, apex slightly inflated.</p> <p>Pronotum slightly elongate backwards, anterior margin slightly prominent, posterior margin rounded; lateral lobe longer than high, humeral sinus absent. Most parts of tegmina concealed beneath pronotum, apices not surpassing posterior margin of pronotum, apices rounded; hind wings absent.</p> <p>All femora unarmed ventrally. Fore coxa with 1 spine; fore tibia with 5 spines on inner margin and 6 spines on outer margin of ventral surface; tibial tympana open on both sides, long oval. Middle tibia with 4 spines on inner side and 5 spines on outer side of ventral surface. Hind femur with genicular lobes apically rounded; hind tibia with 24–28 spines on both sides of dorsal surface separately, with 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs.</p> <p>Tenth abdominal tergite lightly concave in posterior margin. Cercus robust at base, gradually narrowing, apex acute; dorsal surface with a long and narrow lamellar process at base (Fig. 3C), apical area slightly curved ventrad, tip rounded; ventral surface with a digital process near base (Fig. 3E), apical half slightly curved forward, apex rounded. Basal area of subgenital plate broad, which split in the midline, lateral margins subparallel, posterior margin protruding backwards; styli long on ventral surface of subapex of subgenital plate.</p> <p>Female. Posterior margin of tenth abdominal tergite split. Subgenital plate slightly concave at base, lateral margins slightly expanded in basal half, moderately curved dorsad, medial carina distinct in apical half, posterior margin concave, the lateral lobes with apices rounded.</p> <p> <b>Coloration.</b> Body yellowish brown. Eyes brown. Dorsum of head with 4 longitudinal dark brown stripes. Scape and pedicel brown, lamellar uplift on internal margin of antennal socket blackish brown, flagellum with sparse annulate black stripes. Pronotal disc with a broad longitudinal brown stripe, posterior half slightly expanded, outer margins dark brown. With pinniform brown stripes on outer surface of hind femur, genicular lobes black. Tibial spines brown. Trasi blackish brown. Abdomen dark brown.</p> <p> <b>Material examined.</b> Holotype: ♀, Daweishan, Pingbian, Yunnan, 24 August, 1990, coll. Xiaohong Ou. Other specimens: 9♁ 13♀, Daweishan, Pingbian, Yunnan, 8 August, 2021, coll. Qi Guo and Yanhao Duan; 3♀, Daweishan, Pingbian, Yunnan, 19 July, 2022, coll. Hao Xu, Qi Guo and Mengjia Zheng; 1♁ 1♀, Daweishan, Pingbian, Yunnan, 20 July, 2022, coll. Hao Xu, Qi Guo and Mengjia Zheng; 1♁ 2♀, Daweishan, Pingbian, Yunnan, 23 July, 2022, coll. Hao Xu, Qi Guo and Mengjia Zheng; 1♁ 2♀, Daweishan, Pingbian, Yunnan, 24 July, 2022, coll. Hao Xu, Qi Guo and Mengjia Zheng; 1♀, Gula, Funing, Yunnan, 19 July, 2021, coll. Qi Guo and Yanhao Duan; 1♁ 1♀, Xiaojie, Wenshan, Yunnan, 23 July, 2021, coll. Qi Guo and Yanhao Duan; 1♀, Gulinqing, Maguan, Yunnan, 1 August, 2022, coll. Hao Xu, Qi Guo and Mengjia Zheng.</p> <p> <b>Measurements (mm).</b> Body: ♁5.2–7.6, ♀ 9.2–10.2; pronotum: ♁3.2–3.6, ♀ 3.3–3.6; tegmen: ♁1.1–1.3, ♀ 1.4– 1.6; hind femur: ♁8.5–9, ♀ 8.7–9.3; ovipositor: 6.3–6.7.</p> <p> <b>Discussion.</b> The species <i>Phlugiolopsis circolobosis</i> Bian, Shi & Chang, 2013 was described from a single female. We collected members of both sexes of this species from type locality and adjacent localities in recent years. In this paper the male is described for the first time.</p> <p> <b>Distribution.</b> China (Yunnan).</p>Published as part of <i>Zheng, Mengjia, Shi, Fuming & Chang, Yanlin, 2023, Two new species of the genus Phlugiolopsis (Tettigoniidae: Meconematinae) and the male description of Phlugiolopsis circolobosis Bian, Shi & Chang, 2013 from Yunnan, China, pp. 67-74 in Zootaxa 5296 (1)</i> on pages 71-73, DOI: 10.11646/zootaxa.5296.1.6, <a href="http://zenodo.org/record/7970209">http://zenodo.org/record/7970209</a>
Formation of Multicomponent Size-Sorted Assembly Patterns by Tunable Templated Dewetting
No full textSelective and deterministic assembly of particles is fundamentally significant for manufacturing functional devices. However, it is still a challenge to precisely and facilely manipulate particles of different sizes into different assembly patterns. Herein, a method is presented to achieve precise control over the formation of binary or ternary particle size-sorted assemblies. We investigate the assembly process of particles by capillary confinement and show that different size-sorted assemblies of multiple components can be realized by tuning the templated dewetting. By controlling the dewetting direction, receding contact angle, and pillar height of the template, assembly of dual-ring patterns, comet structures, and patterns with component separation are regulated. These structures can be further diversified by tuning the composition of the particles. This approach is general for particle assemblies of different sizes and materials, which will be significant for the fabrication of printed micro/nanohybrid devices.</p
Sinocyrtaspis brachycerca Chang, Bian & Shi 2012
No full textSinocyrtaspis brachycerca Chang, Bian & Shi, 2012 (Fig. 3, Map 1) Sinocyrtaspis brachycercus Chang, Bian & Shi, 2012, Zootaxa, 3495: 85. Holotype: male; type locality: Tianmushan, Linan, Zhejiang; location of type specimen: the Museum of Hebei University. Male of this species was reported by Chang et al. (2012). The original description and photographs are very clear. Description of Female. Anterior margin of pronotum nearly straight while posterior margin arc-shaped (Fig. 3A) and flat at metazona; lateral lobe slightly enlarged at metazona, absent humeral sinus (Fig. 3B). 9th abdominal tergite arc-shaped concave at posterior margin, lateral margins protruding backward (Fig. 3C, D). 10th abdominal tergite prolonged posteriorly, with 1 broad and shallow concavity on posterior margin, lateral lobes roundly triangular, terminals blunt (Fig. 3D). Ovipositor moderately bent dorsad, robust at base, apical half tapering, apex subacute; dorsal and ventral margins smooth, dorsal valvulae slightly longer than ventral ones (Fig. 3F). Subgenital somewhat trapezoidal, basal area faintly broad and arc-shaped concave in the middle, apical area narrow and posterior margin faintly concave (Fig. 3E). Coloration. Body yellowish brown, may be green when alive. Disc of pronotum with a broad longitudinal light brown stripe in the midline, of which becoming darkened at lateral margins. Dorsal surface of abdomen with a longitudinal light brown stripe. Spines of hind tibiae with apices brown. This is the first description of a female of the species. Measurements (mm). Body: ♀ 10.1; pronotum: ♀ 4.1; hind femora: ♀ 8.5–8.7; ovipositor: 5.7. Material examined. Holotype: ♂, Tianmushan, Linan, Zhejiang, China, 1 August, 2011, coll. Liying Guo. Other specimens: 3♂, Xianrending, Tianmushan, Zhejiang, 12 September, 2012, coll. Yuanyuan Lu; 1♂, Qianmutian, Tianmushan, Zhejiang, 12 September, 2012, coll. Yuanyuan Lu; 1♀, Qianmutian, Tianmushan, Zhejiang, 14 September, 2012, coll. Yuanyuan Lu; 2♂, Tianmushan, Linan, Zhejiang, 15 August, 2018, coll. Yujie Dou & Yunxia Zhen; 1♂, Longwangshan, Anji, Zhejiang, 19 August, 2018, coll. Yujie Dou & Yunxia Zhen. Distribution. China (Zhejiang). Discussion. This female can be distinguished from the female of other known species in posterior margin of 10th abdominal tergite with a broad and shallow concavity, lateral lobes roundly triangular, terminals blunt.Published as part of Wang, Tao, Shi, Fuming & Chang, Yanlin, 2019, Revision of the genus Sinocyrtaspis Liu, 2000 (Orthoptera: Tettigoniidae: Meconematinae), pp. 127-138 in Zootaxa 4609 (1) on pages 130-132, DOI: 10.11646/zootaxa.4609.1.5, http://zenodo.org/record/315095
Correlation Analysis between Stock Price and Accounting Profit Based on a Vector Autoregressive Model
No full textThe study of accounting profitability was initiated by the famous American scholars Ball and Brown in the 1960s. In recent years, with the continuous development of market economy, the continuous improvement of the accounting legal system and accounting standards for enterprises has promoted the research on accounting profit in capital market in China. Due to the restriction of some objective conditions, there are not many valuable research results on the relationship between accounting earnings and stock price changes, and the research methods suitable for the study of accounting earnings still need to be explored and summarized. The China Securities Regulatory Commission (CSRC) has required listed companies to publish quarterly financial and accounting reports since 2002, and the condition of using the regression analysis method to study the accounting profit of listed companies is available. In this context, this paper designs a vector autoregressive model to study the correlation between stock price and accounting profit. First, combining the literature and the research results of accounting profit at home and abroad, this paper expounds the statistical analysis of accounting profit. Then, this paper analyzes the accounting profitability of listed companies in China from static and dynamic perspectives. Finally, according to the accounting profit status and profitability statistical analysis of accounting information, accounting profit and growth relationship, and accounting profit information and the relationship between stock prices, this paper is concluded. Also, this paper shows how to improve the profitability of listed companies and how can investors effectively use the accounting earnings information of listed companies for stock investment and put forward corresponding policy suggestions
Enterprise Management Decision and Financial Management Based on Dynamic Cost Volume Profit Model
No full textUnder the background of today’s times, the internal and external environment of enterprises is complex and changeable. It is of great significance for the survival and development of enterprises to continuously reduce the business risks and improve the economic benefits of enterprises by adopting scientific decision-making methods. CVP (cost volume profit) analysis is a model established by sorting out variables related to business decisions in enterprise production through mathematical modeling. Based on the interpretation of cost behavior by multiple cost drivers, this paper establishes a dynamic CVP model of traditional CVP analysis, breaks through the limitations of original assumptions, and improves the application value of CVP analysis in practice. The model is applied to the business decision-making and financial management of a case enterprise, and the products with different characteristics of the enterprise are modeled and analyzed, so as to provide targeted improvement suggestions or strategies for the enterprise’s product production decision-making. The research shows that the dynamic CVP model can be used to formulate the financial management strategy to optimize the profits of enterprises, and it can achieve stable profits and development in the market competition
Ultimate load behaviour of welded thin-walled stub columns under combined loading of axial compression and bending
No full textMicroconema arctilamina Duan & Liu & Chang 2022, sp. nov.
No full textMicroconema arctilamina sp. nov., Chinese name K片小mā (Figs. 1–2) Description. Male. Body small, comparatively stout. Head slightly hypognathous, fastigium verticis conical, apex obtusely rounded, furrowed in the midline. Eyes globular, slightly protruding forwards.Apical segment of maxillary palpus longer than subapical one, apex swollen. Pronotum comparatively long, anterior margin straight, posterior margin obtusely rounded; lateral lobe longer than high, humeral sinus shallow. Thoracic auditory spiracle exposed, nearly peanut-shaped. Tegmen surpassing apex of hind femur, basal area slightly broad, apical area narrowing gradually, apex obtusely rounded; almost stridulatory area of left tegmen covered by pronotum. Hind wing nearly as long as tegmen. Forecoxa with 1 spine. All femora unarmed on ventral surfaces. Internal and external margins of ventral surface of fore tibia with 5 long spines separately, tibial tympana opened on both sides. Middle tibia with 3–6 spines on internal and external margins of ventral surface respectively. Genicular lobes of hind femur with apices obtusely rounded on both sides, hind tibia with 20–22 spines on internal and external margins of dorsal surface respectively, and 2–7 spines on internal and external margins of ventral surface separately, as well as one pair of dorsal apical spurs and two pairs of ventral apical spurs. Tenth abdominal tergite nearly retangular, posterior margin with a pair of inconspicuous tubercles. Cercus long, stout in basal third, with a narrow lamellar extension along dorsal margin and ventral margin respectively on inner surface; middle area conspicuously curved upwards and inwards; two thirds of apical area long cylindrical, inner surface faintly flattened, apex slightly stout. Subgenital plate obviously longer than wide, furrowed in the midline, apical area with nearly quadrate area concave dorsally, posterior margin obtusely rounded. Styli short with apices obtusely rounded, directing downwards, inserted on lateral margins of subapical area of subgenital plate. Female. Appearance is similar to that of male. Lateral area of ninth abdominal tergite slightly broadened backwards, tenth abdominal tergite narrow, split in the centre of posterior margin. Cercus short conical with apex subacute. Epiproct broad and short, posterior margin obtusely rounded. Subgenital plate broad and almost pentagonal, feebly furrowed in the midline, posterior margin emarginate. Ovipositor almost as long as hind femur, basal area slightly robust, then narrowing apically, faintly upcurved; dorsal margin smooth, ventral margin with some small blunt teeth in subapical area, afterwards with a large tooth; apex of dorsal valvula acute and apex of ventral valvula hooked. Coloration. General color yellowish green (probably green when alive). Apex of mandible black. Eyes reddish brown. Area after eyes with a longitudinal yellow stripe separately (but in some specimens discolored). Disc of pronotum with a pair of parallel longitudinal yellow stripes. Apical area of stridulatory area of male left tegmen with a large and irregular black spot. Claw with apex brown. Material examined. Holotype: ♂, Yaoshan, Qiaojia, Yunnan, China, 22 August, 2020, coll. Tao Wang and Qi Guo. Paratypes: 2♂, same data as holotype; 2♀, Dongping, Qiaojia, Yunnan, China, 24 August, 2020, coll. Tao Wang and Qi Guo. Other specimens: 8♂ 7♀, Dongping, Qiaojia, Yunnan, China, 24 August, 2020, coll. Tao Wang and Qi Guo; 9♂ 5♀, same data as holotype. Measurements (mm). Body: ♂ 9.5–10.9, ♀ 12.6–12.9; pronotum: ♂ 3.9–4.5, ♀ 3.5–3.9; tegmen: ♂ 9.2–12.2, ♀ 10.9–13.8; hind femur: ♂ 9.1–9.5, ♀ 10.2–10.5; ovipositor: 11.1–11.4. Etymology. The name of this new species is named for morphology of male cercus, from Latin ‘ arct -’ (narrow) and ‘ lamin -’ (lamellar). Discussion. The new species resembles Microconema clavata (Uvarov, 1933), but it differs from the latter in: male cercus on inner basal area with a narrow lamellar extension on dorsal margin and ventral margin respectively; subgenital plate nearly rectangular, with a median longitudinal furrow distinctly. Ventral margin of ovipositor with some small blunt teeth in subapical area.Published as part of Duan, Yanhao, Liu, Qing & Chang, Yanlin, 2022, One new species of the genus Microconema Liu, 2005 (Orthoptera: Tettigoniidae Meconematinae) from Yunnan, China, pp. 81-86 in Zootaxa 5154 (1) on pages 82-84, DOI: 10.11646/zootaxa.5154.1.5, http://zenodo.org/record/663726
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