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Genus: Phrurotimpus Chamberlin & Ivie, 1935 Type species: Herpyllus alarius Hentz, 1847

Phrurotimpus daliensis sp. n. (kff提ůfl) Figs 1–4, 10 Type material. Holotype ♂: CHINA: Yunnan Province: Dali Bai Autonomous Prefecture, Fengyi Town (25°35′26.61″N, 100°18′8.57″E), 2026 m elev., 15.VII.2021, leg. Yannan Mu. Paratypes: 10♂ 33♀, same data as holotype. Etymology. The specific name is derived from the type locality; adjective. Diagnosis. This new species can be distinguished from P. baoshanensis sp. n. by 1) RTA wider than in the latter species, and the distance between the RTA and cymbium smaller than P. baoshanensis sp. n.; 2) bursa triangular and positioned above the spermathecae, and separated by about half the diameter of spermathecae (vs close in P. baoshanensis sp. n.); 3) spermathecae large and round as opposed to small and oval in P. baoshanensis sp. n.. Description. Male (Holotype): total length 1.74, carapace 0.85 long, 0.69 wide; abdomen 0.89 long, 0.55 wide. Eye sizes and interdistances:AME 0.06, ALE 0.06, PME 0.05, PLE 0.05; AME–AME 0.03, AME–ALE 0.01, ALE– ALE 0.14, PME–PME 0.04, PME–PLE 0.03, PLE–PLE 0.20, ALE–PLE 0.04. EAW 0.27, CRW 0.37, EAW/CRW 0.73, CRW/CW 0.54. MOA 0.15 long, anterior width 0.14, posterior width 0.14. CH 0.07, CH /AME 1.17. Labium 0.08 long, 0.14 wide. Sternum 0.57 long, 0.44 wide. Carapace oval, dark in color, with several slight lighter bands either side of fovea (Figs 1A, 2A); middle of carapace with sparse iridescent scales, margin of carapace with ring of iridescent scales (Fig. 2C). Sternum gray, without pattern. Abdomen darker than carapace, large dorsal scutum covering most of dorsum, with iridescent scales on side and behind dorsal scutum (Fig. 2B). All femora and patella black, tibiae I–IV black with white tip except tibia III yellow, all metatarsi and tarsi yellowish without markings (Fig. 3). Palp as in Figs 4A–D. Femur without apophysis, swollen ventrally at middle parts, without setae. Patella and tibia short, cymbium longer than femur. Tibia with single large retrolateral apophysis and small dorsal apophysis. Tegulum narrower than cymbium, sperm duct two times longer than tegulum and half as wide as tegulum, curved as S-shaped in prolateral view. Embolus short, directed retrodistally. Conductor membranous, triangular. Female: One paratype: total length 2.34, carapace 1.05 long, 0.83 wide; abdomen 1.29 long, 0.83 wide. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.06, PLE 0.06; AME – AME 0.04, AME – ALE 0.01, ALE – ALE 0.17, PME – PME 0.05, PME – PLE 0.03, PLE – PLE 0.23, ALE – PLE 0.05. EAW 0.33, CRW 0.46, EAW / CRW 0.72, CRW / CW 0.55. MOA 0.18 long, anterior width 0.16, posterior width 0.17. CH 0.09, CH / AME 1.50. Labium 0.10 long, 0.17 wide. Sternum 0.69 long, 0.41 wide. Other characters as for male, except larger body size, broad band with dense iridescent scales posterior to eye area, and without dorsal scutum on abdomen (Fig. 2E–F). Epigyne as in Fig. 4E–H. Copulatory openings large, situated medially, separated by about 2.5 times spermathecae diameter. Copulatory ducts short, thick. Bursa triangular, semi-transparent. Connecting tube between bursae and spermathecae thinner than copulatory ducts. Spermathecae round, separated by more than half their width. Fertilization ducts located on dorsal side of spermathecae. Measurement of legs: Distribution. China (Yunnan Province), Published as part of Mu, Yannan, Lin, Xuanyu & Zhang, Feng, 2022, First records of the genus Phrurotimpus Chamberlin & Ivie, 1935 from China with two new species and one new combination (Araneae: Phrurolithidae), pp. 565-576 in Zootaxa 5124 (5) on pages 566-570, DOI: 10.11646/zootaxa.5124.5.5, http://zenodo.org/record/6417080

Genus: Phrurotimpus Chamberlin & Ivie, 1935 Type species: Herpyllus alarius Hentz, 1847, Published as part of Mu, Yannan, Lin, Xuanyu & Zhang, Feng, 2022, First records of the genus Phrurotimpus Chamberlin & Ivie, 1935 from China with two new species and one new combination (Araneae: Phrurolithidae), pp. 565-576 in Zootaxa 5124 (5) on page 566, DOI: 10.11646/zootaxa.5124.5.5, http://zenodo.org/record/6417080, {"references":["Hentz, N. M. (1847) Descriptions and figures of the araneides of the United States. Boston Journal of Natural History, 5, 443 - 478."]}

Phrurotimpus lasiolepis (Fu, Chen & Zhang, 2016) comb. nov. Phrurolithus lasiolepis Fu, Chen & Zhang, 2016: 276, figs 3A–I, 4A–E. Remark. As explained in the Introduction, the morphology of this species is consistent with the two species of Phrurotimpus described in this paper, and we therefore transfer this species to the latter genus., Published as part of Mu, Yannan, Lin, Xuanyu & Zhang, Feng, 2022, First records of the genus Phrurotimpus Chamberlin & Ivie, 1935 from China with two new species and one new combination (Araneae: Phrurolithidae), pp. 565-576 in Zootaxa 5124 (5) on page 573, DOI: 10.11646/zootaxa.5124.5.5, http://zenodo.org/record/6417080, {"references":["Fu, L., Chen, H. M. & Zhang, F. (2016) New Phrurolithus species from China (Araneae, Phrurolithidae). Ecologica Montenegrina, 7, 270 - 290. https: // doi. org / 10.37828 / em. 2016.7.5"]}

Phrurotimpus daliensis sp. n. (kff提ůfl) Figs 1–4, 10 Type material. Holotype ♂: CHINA: Yunnan Province: Dali Bai Autonomous Prefecture, Fengyi Town (25°35′26.61″N, 100°18′8.57″E), 2026 m elev., 15.VII.2021, leg. Yannan Mu. Paratypes: 10♂ 33♀, same data as holotype. Etymology. The specific name is derived from the type locality; adjective. Diagnosis. This new species can be distinguished from P. baoshanensis sp. n. by 1) RTA wider than in the latter species, and the distance between the RTA and cymbium smaller than P. baoshanensis sp. n.; 2) bursa triangular and positioned above the spermathecae, and separated by about half the diameter of spermathecae (vs close in P. baoshanensis sp. n.); 3) spermathecae large and round as opposed to small and oval in P. baoshanensis sp. n.. Description. Male (Holotype): total length 1.74, carapace 0.85 long, 0.69 wide; abdomen 0.89 long, 0.55 wide. Eye sizes and interdistances:AME 0.06, ALE 0.06, PME 0.05, PLE 0.05; AME–AME 0.03, AME–ALE 0.01, ALE– ALE 0.14, PME–PME 0.04, PME–PLE 0.03, PLE–PLE 0.20, ALE–PLE 0.04. EAW 0.27, CRW 0.37, EAW/CRW 0.73, CRW/CW 0.54. MOA 0.15 long, anterior width 0.14, posterior width 0.14. CH 0.07, CH /AME 1.17. Labium 0.08 long, 0.14 wide. Sternum 0.57 long, 0.44 wide. Carapace oval, dark in color, with several slight lighter bands either side of fovea (Figs 1A, 2A); middle of carapace with sparse iridescent scales, margin of carapace with ring of iridescent scales (Fig. 2C). Sternum gray, without pattern. Abdomen darker than carapace, large dorsal scutum covering most of dorsum, with iridescent scales on side and behind dorsal scutum (Fig. 2B). All femora and patella black, tibiae I–IV black with white tip except tibia III yellow, all metatarsi and tarsi yellowish without markings (Fig. 3). Palp as in Figs 4A–D. Femur without apophysis, swollen ventrally at middle parts, without setae. Patella and tibia short, cymbium longer than femur. Tibia with single large retrolateral apophysis and small dorsal apophysis. Tegulum narrower than cymbium, sperm duct two times longer than tegulum and half as wide as tegulum, curved as S-shaped in prolateral view. Embolus short, directed retrodistally. Conductor membranous, triangular. Female: One paratype: total length 2.34, carapace 1.05 long, 0.83 wide; abdomen 1.29 long, 0.83 wide. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.06, PLE 0.06; AME – AME 0.04, AME – ALE 0.01, ALE – ALE 0.17, PME – PME 0.05, PME – PLE 0.03, PLE – PLE 0.23, ALE – PLE 0.05. EAW 0.33, CRW 0.46, EAW / CRW 0.72, CRW / CW 0.55. MOA 0.18 long, anterior width 0.16, posterior width 0.17. CH 0.09, CH / AME 1.50. Labium 0.10 long, 0.17 wide. Sternum 0.69 long, 0.41 wide. Other characters as for male, except larger body size, broad band with dense iridescent scales posterior to eye area, and without dorsal scutum on abdomen (Fig. 2E–F). Epigyne as in Fig. 4E–H. Copulatory openings large, situated medially, separated by about 2.5 times spermathecae diameter. Copulatory ducts short, thick. Bursa triangular, semi-transparent. Connecting tube between bursae and spermathecae thinner than copulatory ducts. Spermathecae round, separated by more than half their width. Fertilization ducts located on dorsal side of spermathecae. Measurement of legs: Distribution. China (Yunnan Province)

Mu, Yannan, Lin, Xuanyu, Zhang, Feng (2022): First records of the genus Phrurotimpus Chamberlin & Ivie, 1935 from China with two new species and one new combination (Araneae: Phrurolithidae). Zootaxa 5124 (5): 565-576, DOI: https://doi.org/10.11646/zootaxa.5124.5.5

Phrurotimpus lasiolepis (Fu, Chen & Zhang, 2016) comb. nov. Phrurolithus lasiolepis Fu, Chen & Zhang, 2016: 276, figs 3A–I, 4A–E. Remark. As explained in the Introduction, the morphology of this species is consistent with the two species of Phrurotimpus described in this paper, and we therefore transfer this species to the latter genus.

Phrurotimpus baoshanensis sp. n. (保山提ůfl) Figs 5–8 Type material. Holotype ♂: CHINA: Yunnan Province: Baoshan City, Longyang District, Taibao Park (25°07′26.83″N, 99°08′49.28″E), 1849 m elev., 20.VII.2021, leg. Yannan Mu. Paratypes: 7♂ 19♀, same data as holotype. Etymology. The specific name is derived from the type locality; adjective. Diagnosis. This new species is similar to P. lasiolepis comb. n., but can be distinguished by: 1) the thinner and curved conductor; 2) the larger RTA, and the position of the base of the RTA, which extends to the cymbium with a broad gap; 3) the bursa close to each other and more strongly curved, forming a J-shape. Description. Male (Holotype): total length 2.06, carapace 0.97 long, 0.78 wide; abdomen 1.09 long, 0.61 wide. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.05, PLE 0.06; AME–AME 0.03, AME–ALE 0.01, ALE–ALE 0.15, PME–PME 0.05, PME–PLE 0.04, PLE–PLE 0.22, ALE–PLE 0.05. EAW 0.30, CRW 0.38, EAW/ CRW 0.79, CRW/CW 0.49. MOA 0.15 long, anterior width 0.15, posterior width 0.14. CH 0.09, CH /AME 1.50. Labium 0.10 long, 0.14 wide. Sternum 0.62 long, 0.47 wide. Carapace oval, brown in color, with several slightly lighter bands either side of fovea (Fig. 5A, 6A); middle of carapace with sparse iridescent scales, margin of carapace with ring of iridescent scales (Fig. 6C). Sternum mottled gray, without pattern (Fig. 5B). Abdomen black, large dorsal scutum covering most of dorsum, with iridescent scales on side and behind dorsal scutum (Fig. 6B). Femora and patella I–II black, femora and patella III–IV yellow, tibiae I–IV black with white tip except tibia III yellow, all metatarsi and tarsi yellowish without markings, except metatarsus IV black with yellow tip (Fig. 7). Palp as in Figs 8A–D. Femur without apophysis, with asetose swolling ventrally at the middle. Patella and tibia short, cymbium longer than femur. Tibia with single large retrolateral apophysis and small dorsal apophysis; gap to cymbium wider than in P. daliensis sp. nov.. Bulb narrower than cymbium, distinct sperm duct tapering from retrolateral side to prolateral side, S-shaped in prolateral view. Embolus short, spike-shaped. Conductor membranous, triangular. Female (one paratype): total length 2.85, carapace 1.14 long, 0.95 wide; abdomen 1.71 long, 1.12 wide. Eye sizes and interdistances: AME 0.08, ALE 0.08, PME 0.06, PLE 0.07; AME – AME 0.04, AME – ALE 0.01, ALE – ALE 0.18, PME – PME 0.05, PME – PLE 0.04, PLE – PLE 0.25, ALE – PLE 0.05. EAW 0.35, CRW 0.47, EAW / CRW 0.74, CRW / CW 0.49. MOA 0.18 long, anterior width 0.18, posterior width 0.16. CH 0.09, CH / AME 1.13. Labium 0.10 long, 0.19 wide. Sternum 0.77 long, 0.62 wide. Other characters as for male, except larger body size, broad band with more iridescent scales behind of eye area than male and without dorsal scutum on abdomen (Figs 5C–D, 6D–F). Epigyne as in Figs 8E–H. Copulatory openings large, situated medially, separated by about 3 times broader than spermathecae diameter. Copulatory ducts short and thick. Bursa J-shaped. Connecting tubes thinner than CDs. Spermathecae small, oval. Fertilization ducts located at anterior margin of spermathecae. Measurement of legs: Spination of legs: Distribution. China (Yunnan Province), Published as part of Mu, Yannan, Lin, Xuanyu & Zhang, Feng, 2022, First records of the genus Phrurotimpus Chamberlin & Ivie, 1935 from China with two new species and one new combination (Araneae: Phrurolithidae), pp. 565-576 in Zootaxa 5124 (5) on pages 570-572, DOI: 10.11646/zootaxa.5124.5.5, http://zenodo.org/record/6417080

With the popularization of smart devices and the development of mobile Internet, the elderly have also become one of the user groups of smart phones. Due to the physical and psychological particularity of the elderly, the elderly have poor experience of using smart phones. Therefore, the research group adopts Android native technology, Spring technology and front-end separation technology to design a mobile application of intelligent assistant for the elderly that meets the characteristics and needs of the elderly. The mobile application is designed for human-computer interaction in terms of vision, touch and voice according to the characteristics of the elderly, which is easy for the elderly to use. Practical results show that this mobile application is a quick use tool with good information interaction. Its interactive functions such as information assistance and health reminder based on personalized customization of the elderly can provide them with good information life services and bring convenience to their lives.

With the global impact of COVID-19, online application have received widespread attention. In order to make up for the lack of online shopping for the vendors, technologies such as SpringBoot, Three.js, etc. are used to design the online market system. The system contains five modules: staff management, stall governance, goods track, instant delivery and netflow promotion. Meantime, it adopts a block regionalization sale model to standardize the operation of online stalls efficaciously and make customers have a stronger sense of satisfaction.

Graphene reinforced copper matrix composites (Gr/Cu) were fabricated by electrostatic self-assembly and powder metallurgy. The morphology and structure of graphene oxide, graphene oxide-Cu powders and Gr/Cu composites were characterized by scanning electronic microscopy, transmission electronic microscopy, X-ray diffraction and Raman spectroscopy, respectively. The effects of graphene contents, applied loads and sliding speeds on the tribological behavior of the composites were investigated. The results indicate that the coefficient of friction of the composites decreases first and then increases with increasing the graphene content. The lowest friction coefficient is achieved in 0.3 wt% Gr/Cu composite, which decreases by 65% compared to that of pure copper. The coefficient of friction of the composite does not have significant change with increasing the applied load, however, it increases with increasing the sliding speed. The tribological mechanisms of the composite under different conditions were also investigated.

Graphene foam (GF) was synthesized by chemical vapor deposition (CVD) using nickel foam as the template. Then, ZnO nanowire arrays (ZnO NWAs) were grown on the GF by hydrothermal synthesis. Finally, graphene (Gr) was deposited on the ZnO NWAs by CVD to obtain the hybrid of Gr/ZnO NWAs/GF. Due to large specific surface area and outstanding electric conductivity, the hybrid can be used for the determination of folic acid (FA) by cyclic voltammetry and differential pulse voltammetry. The results show that ZnO NWAs are uniformly and vertically grown on the GF and Gr is deposited on the ZnO NWAs. The sensitivity and the measured detection limit of the hybrid for FA in the range of 0–60 μM are 0.18 μA μM− 1 and 1 μM, respectively. The hybrid can accurately detect FA in the presence of uric acid, and the hybrid also shows good reproducibility and stability.

ZnO nanorods and graphene foam were synthesized via hydrothermal synthesis and chemical vapor deposition, respectively. Hybrid of ZnO nanorods and graphene nanosheets was prepared by ultrasonic treatment. The hybrid was sprayed onto the ITO glass. The hybrid was characterized by scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. The electrochemical properties of the hybrid were measured by cyclic voltammetry and differential pulse voltammetry. The results show that the diameter and length of ZnO nanorods are ~ 50 nm and 5 μm, respectively. Graphene nanosheets with high quality are made up of few layers and the sheet size is ~ 2 μm. The sensitivity of the hybrid for detection of uric acid is 0.3 μM μA−1 cm−2 in the range of 5~80 μM. The electrode can accurately detect uric acid in the presence of ascorbic acid. Meanwhile, the electrode also shows good repeatability and stability.

Graphene foam (GF) was fabricated by chemical vapor deposition using nickel foam as the template and the GF was activated by concentrated nitric acid. Polyaniline nanowire arrays (PANI NWAs) were grown on the surface of GF by in-situ polymerization to obtain the PANI NWAs/GF composite. The morphologies and structures of GF and PANI NWAs/GF composite were characterized by scanning electron microscopy, transmission electron microscopy and Raman analysis, respectively. The integration between GF and PANI NWAs shows a synergistic effect. GF provides electrically conductive channels for the PANI NWAs anchored on it, and PANI NWAs with small diameters provide high pseudocapacitance and enhanced electrode specific surface area. The electrode exhibits a high specific capacitance 870 F g−1 at 1 A g−1. Moreover, the electrodes possess an excellent cycle life with 80% capacitance retention after 1000 cycles at 6 A g−1.

CuO was coated on the surface of Al18B4O33 whiskers by hydrothermal synthesis and CuO coated Al18B4O33 whiskers reinforced 6061Al composites with different coating contents were fabricated by squeeze casting. The preparation process and characterizations of the CuO coated Al18B4O33 whiskers were studied. The effects of CuO coating of whiskers on the microstructures, tensile properties and aging behaviors of the composite were investigated. The results showed that a uniform CuO coating of Al18B4O33 whiskers could be prepared by hydrothermal synthesis. CuO reacted with molten 6061Al during squeeze casting and meanwhile a layer of continuous MgAl2O4 formed at the interface. With increasing the contents of CuO coating on whiskers, the ultimate tensile strength of the composite gradually increased. The elongation to fracture of the composite initially increased and later decreased. Impressively, the ultimate tensile strength of the composite could be further improved after T6 heat-treatment. CuO coating of the whiskers could also obviously change the aging behaviors of the composite.

Graphene nanosheets (GNSs) reinforced pure copper matrix composites were prepared by ball-milling and hot-press sintering. The morphologies and structures of GNSs-Cu powders were studied after ball-milling for different time. The effects of the GNSs content on the microstructures, mechanical properties and fracture mechanisms of the composites were also investigated. It is indicated that the GNSs are gradually dispersed into the copper matrix with increasing the ball-milling time and a uniform dispersion is achieved after ball-milling for 5 h. When the content of GNSs in the composite is 0.5 wt%, GNSs distribute randomly in the composite and the interface bonding is good which is benefit to enhance the mechanical properties of composite. With increasing the GNSs contents, the aggregation of GNSs in the composite is apparent, which seriously separates the matrix and results in low mechanical properties. The fracture mechanism of the composites changes from ductile to brittle.

The dispersion of graphene in copper matrix significantly affects the mechanical and physical properties of graphene reinforced copper matrix composite (Gr/Cu). In our present study, graphene oxide (GO) with the negative charge was prepared by a modified Hummers' method and Cu powders were coated by hexadecyl trimethyl ammonium bromide (CTAB) to obtain the surface positive charge. GO-Cu powders were prepared by electrostatic self-assembly and Gr/Cu composites were fabricated by powder metallurgy. Morphologies of GO-Cu powders, microstructures and tensile fractographs of the Gr/Cu composites were observed. The effect of graphene contents on the mechanical properties and thermal conductivity of the composite were also investigated. The results show that GO with the negative charge is adsorbed on the surface of CTAB coated Cu powders with the positive charge, which realizes the homogeneous dispersion of graphene in the copper matrix composites. With increasing the graphene contents, the ultimate tensile strength and thermal conductivity of Gr/Cu composites initially increase and later decrease. However, the elongation to fracture of the composite gradually decreases.

ZnO was firstly coated on the surface of aluminum borate whiskers (ABOw) by sol–gel. Then, ZnO-coated ABOw was added into soybean slurry to make a preform with low volume fraction and the preform was sintered at high temperatures to obtain a sufficient strength. ABOw reinforced aluminum composite (ABOw/Al) was fabricated by squeeze casting. Interfacial microstructures, tensile properties, and fracture mechanisms of the ABOw/Al composite were investigated. The results show that the coating of ABOw and the addition of soybean sacrificial filler can effectively decrease the volume fraction of whiskers in the composite. The ultimate tensile strength of composite has not changed much with the decrease of whiskers volume fraction in the composite. However, the elongation to fracture of the composite evidently increases and it can reach 11.1% at room temperature.

CuO coating on the surface of aluminum borate whiskers (ABOw) was prepared by hydrothermal synthesis. CuO coated ABOw reinforced 6061Al composite was fabricated by squeeze casting. The preparation process and characterizations of the CuO coated ABOw were investigated. The effects of CuO coating on the interfacial reactions between the whiskers and 6061Al matrix, and tensile properties of the composite in as-cast and after thermal exposure were investigated. The results show that a uniform CuO coating of ABOw is prepared by hydrothermal synthesis. CuO coating of the whiskers reacts with molten 6061Al during squeeze casting, increasing the wettability and tensile properties of as-cast composite. Meanwhile, MgAl 2 O 4 uniformly forms at the interface, which can effectively reduce serious interfacial reactions between the whiskers and Mg in the 6061Al matrix at high temperatures, improving thermal stability of the composite.

Aluminum borate whiskers (ABOw) with or without ZnAl2O4 coating reinforced pure aluminum composites (ABOw/Al, ABOw/ZnAl2O4/Al) were fabricated by squeeze casting. The effects of ZnAl2O4 coating on the compressive behaviors, microstructures, and matrix textures of the composites were investigated at different temperatures and strain rates. The results indicate that the maximum compressive flow stress of the composites almost linearly decreases with the increase in temperature. The maximum compressive flow stress of ABOw/ZnAl2O4/Al composite is higher than that of ABOw/Al composite at the same temperature when the strain rate is larger, however, it is reversed when the strain rate is smaller. It is more serious for the fracture of whiskers in ABOw/ZnAl2O4/Al composite than that in ABOw/Al composite at the high compressive strain rate. However, the average length of whiskers in ABOw/ZnAl2O4/Al composite is larger than that in ABOw/Al composite at the low compressive strain rate. The strong matrix tex...

The development of novel nanomaterials brings new opportunity and challenge for high sensing detection of biomolecules. The authors describe the preparation of 3-dimentional hollow graphene balls (3D HGBs) using nickel nanoparticles (Ni-NPs) as the template. The Ni-NPs were synthesized by chemical reduction of nickel chloride and then graphene was coated onto their surface via carburization and carbonization. After etching Ni-NPs, 3D HGBs with few layers and a typical size of 100 nm were obtained. They were sprayed onto indium tin oxide glass to obtain a working electrode for electrochemical determination of levodopa in the presence of uric acid. Due to the unique hollow porous structure of the 3D HGBs, the electrode exhibits a sensitivity of 0.69 μA·μM−1·cm−2 and a 1 μM limit of detection. It is selective, reproducible and stable. It was applied to the determination of levodopa in spiked human plasma samples and it is of potential use in clinical research.