85,311 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Mekonglema Zhao & Li 2020
No full textGenus Mekonglema Zhao & Li, 2020 Type species. Mekonglema bailang Zhao & Li, 2020 from China.Published as part of Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3) on page 240, DOI: 10.11865/zs.2022303, http://zenodo.org/record/717585
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Raw data of Zhao et al., 2022, Geoderma
No full textRaw data associated with Zhao et al., 2022, Geoderma. Any use of the data set should be approved by the corresponding author Kai Yue at "[email protected]".</p
Milema Zhao & Li 2022, gen. nov.
No full textMilema Zhao & Li, gen. nov. Type species. Milema nuichua Zhao & Li, sp. nov. Diagnosis. This genus can be distinguished from Telema by the following characters: the ratio of the length of embolus/carapace 0.25–0.30 (vs. 0.50–0.65), the presence of a prolateral cymbial apophysis (vs. absence), belt-shaped tibial glands (vs. plate-shaped), the ratio of the length of embolus/bulb 0.38–1.10 (vs. smaller than 0.32); spermatheca sac-like or globular (vs. cane shaped). Description. Total length 0.90–1.15 in male, 0.95–1.20 in female. Carapace 0.40–0.51 long, Carapace pear shaped, pale or dark brown. Six eyes encircled by black or absent. Tibia I 0.52–0.94. Leg formula 1243, leg glands belt shaped. Abdomen blue or for males, bulb small relative to carapace, the length ratio of bulb/carapace 0.25–0.30. Length of cymbium> femur> tibia> patella; cymbial apophysis present prolaterally. Distribution. Southern Vietnam and Southern Thailand. Etymology. The generic name is a combination of the first two letters of millet (referring to the small size) and the latter four letters of Telema (type genus of the family); feminine in gender. Species included. Milema lorkor Zhao & Li, sp. nov., Milema nuichua Zhao & Li, sp. nov. and Milema sai Zhao & Li, sp. nov. Biology. Habitats of this genus are diverse. The type species, M. nuichua Zhao & Li, sp. nov. inhabits leaf litter; M. sai Zhao & Li, sp. nov. is found at cave entrances; and M. lorkor Zhao & Li, sp. nov. is found deep in caves. These spiders have particular morphological characters adapting to their diverse habitats.Published as part of Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3) on page 245, DOI: 10.11865/zs.2022303, http://zenodo.org/record/717585
Burmalema Zhao & Li 2022, gen. nov.
No full textBurmalema Zhao & Li, gen. nov. Type species. Burmalema shan Zhao & Li, sp. nov. Diagnosis. The new genus resembles Telema Simon, 1882 by lacking a cymbial apophysis, but it can be distinguished by the following: belt-shaped tibial glands (vs. plate-shaped); ratio of embolus/bulb lengths ca. 0.80 (vs. less than 0.42), and twisted embolus (vs. triangular or nearly needle-shaped); females can be distinguished by the L-shaped endogyne with long and sclerotized tubes (vs. cane shaped, with membranous tubes). The new genus can be distinguished from all the other genera of Telemidae by the absence of a cymbial apophysis (vs. presence). Description. Total length 1.25–1.53, carapace 0.52–0.90 long. Eyes vestigial. Carapace, sternum, endites, labium and legs light brown. Endites longer than wide; labium wider than long. Tibia I 0.90–1.00. Leg formula 1243. In male, length of cymbium> femur> tibia> patella; prolateral cymbial apophysis absent; embolus spiraled and long relative to bulb. Endogyne simple, with tube inside, expended distally. Distribution. Myanmar. Etymology. The generic name is derived from “ Burma ”, referring the name of type locality, Myanmar, and “-lema” is a convention from Telema, the type genus of the family; feminine in gender. Species included. Burmalema shan sp. nov.Published as part of Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3) on page 238, DOI: 10.11865/zs.2022303, http://zenodo.org/record/717585
Figure 45. Milema nuichua Zhao & Li in Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia
No full textFigure 45. Milema nuichua Zhao & Li, sp. nov., paratype female. A. Habitus, dorsal view; B. Habitus, ventral view; C. Endogyne, lateral view. Abbreviations: S—spermatheca. Scale bars: A–B = 0.2 mm; C = 0.05 mm.Published as part of Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3) on page 250, DOI: 10.11865/zs.2022303, http://zenodo.org/record/717585
Milema nuichua Zhao & Li 2022, sp. nov.
No full textMilema nuichua Zhao & Li, sp. nov. (Figs 44–45) Diagnosis. This species resembles M. sai Zhao & Li, sp. nov., but can be distinguished by the following characters: the distal tibia is wider than the basal cymbium of male palp, the irregular bulb as shown in Figs 44C–D (vs. nearly ellipsoidal), tip of embolus sclerotized (vs. membranous); spermatheca membranous with no tube inside (vs. many membranous tubes and one sclerotized tube). Description. Male (holotype, Fig. 44A). Total length 0.90. Carapace 0.40 long, 0.36 wide. Abdomen 0.50 long, 0.40 wide. Carapace brown. Six eyes ringed with black, clypeus height 0.12. Chelicerae, legs, labium, and endites light brown. Leg measurements: I 2.06 (0.63, 0.16, 0.56, 0.40, 0.31), II 1.72 (0.49, 0.12, 0.48, 0.32, 0.31), III 1.38 (0.44, 0.12, 0.35, 0.24, 0.23), IV 1.43 (0.41, 0.12, 0.40, 0.25, 0.25). Abdomen dark blue. Palp (Figs 44B–D). Tibia 2.28 times longer than patella, cymbium 1.63 times longer than tibia, length of cymbial apophysis as wide as cymbial base; bulb shaped as shown in Figs 44C–D, curved dorso-medially; embolus as shown in Figs 44B–D, short relative to bulb, sclerotized distally. Female (IZCAS-Ar43306, Figs 45A–B). Total length 0.95. Carapace 0.52 long, 0.44 wide. Abdomen 0.44 long, 0.48 wide. Six eyes ringed with black, clypeus height 0.10. Carapace brown with black radial stripes. Sternum, endites and labium dark brown, legs yellow marked by brown dots. Leg measurements: I 1.78 (0.52, 0.12, 0.52, 0.31, 0.31), II 1.51 (0.44, 0.12, 0.40, 0.27, 0.28), III 1.16 (0.31, 0.12, 0.28, 0.23, 0.22), IV 1.48 (0.47, 0.12, 0.38, 0.27, 0.24). Abdomen brown. Genitalia (Fig. 45C). Endogyne sac-like without tube, short relative to epigyne. Material examined. Holotype ♂ (IZCAS-Ar43308), Vietnam: Ninh Thuan, Nui Chua National Park, leaf litter (11.7261°N, 109.1856°E, elev. 70 m), 30 August 2015, Q. Zhao, Y. Li leg. Paratypes. 1♂ 2♀ (IZCAS-Ar43309–Ar43311), same data as holotype. Distribution. Known only from the type locality. Etymology. The specific name is a noun in apposition taken from the type locality.Published as part of Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3) on pages 245-246, DOI: 10.11865/zs.2022303, http://zenodo.org/record/717585
Rawdata for Zhao et al., 2023 Journal of Hydrology
No full textRaw data for Zhao et al., 2023, Journal of Hydrology</p
Experimental measurement of combustion instabilities in Rijke-Zhao tubes
No full textThis project aims to investigate the onset and selection of combustion-excited oscillations in uniquely configured combustion systems through experimental approaches such as thermal imaging and flow visualization. The insights gained on the behavior of such combustion systems can be used in future researches to develop control methodologies to minimize and eliminate combustion instability, or to improve efficiencies in applications such as industrial dryers and engine systems. In this paper, the theoretical concept of pulse combustion will also be explained and demonstrated.
The experimental set-up consists of Rijke-Zhao tubes of various configurations, being placed vertically above a flame. The Rijke-Zhao tubes are made of quartz and they are Y-shaped, with configurations varying in terms of the branch lengths and angles. High speed camera at 20 frames per second (fps) was used to capture flow motion within the quartz tubes, while infrared camera was used to display the temperature distribution. To measure the pressure field within the tube, two arrays of microphones were strategically positioned along the upper branches. Finally, a flow anemometer and a K-type thermocouple were used to measure the flow velocity and flow temperature at the ends of the branches respectively. The results gathered were tabulated and analyzed.Bachelor of Engineering (Aerospace Engineering
- …
