345 research outputs found
Scymnus (Parapullus) Yang
No full textSubgenus Parapullus Yang Scymnus (Parapullus) was established by Yang (1978) for a Taiwanese species: S. secula Yang, and two additional Palearctic species have been assigned to this subgenus (Pang and Yu 1993). The new species described here resembles S. (Parapullus) alishanensis Pang and Yu, but is separated from it by the median piece of tegmen narrowing gradually to a pointed tip in ventral view, and by the finely punctate first abdominal sternite. The new species also resembles the European S. (Parapullus) abietis (Paykull), but in the latter the lateral lobes of the tegmen are narrower and slightly shorter than the median piece of the tegmen. Scymnus (Parapullus) tsugae Yu and Yao, new species (Fig. 8) Description. Male. Length 2.40 mm, width 1.35 mm. Form oval, moderately convex dorsum moderately convex. Color brown, except head and legs yellowish brown, elytra reddish brown. Interocular distance less than 1/2 head width. Innerocular margins arcuate. Frons weakly convex, finely punctate. Anterior margin of clypeus very weakly incurvate. Antenna 10segmented, proportions as illustrated (Fig. 8f). Maxillary palpus terminal segment widest at middle; inner, shorter lateral side slightly shorter than basal thickness, distal side strongly oblique. Pronotum with punctation similar to head. Elytral punctation distinctly coarser, pubescence arranged in weak Sform. Prosternal carinae moderately separated, slightly convergent anteriorly. Postcoxal line of first abdominal sternite incomplete, reaching 6/7 sternite length, enclosed area finely punctate, smooth near line. Hind margin of fifth abdominal sternite nearly truncate; apex of sixth slightly incurvate. Genitalia: Sipho (Fig. 8a) moderately stout with welldeveloped siphonal processes; apex of sipho simple, without distinct appendix. Tegmen (Fig. 8b, c) moderately stout; median piece slightly narrowed at base, converging gradually apically to a pointed tip in ventral aspect. Lateral lobes shorter than median piece, about 2/3 length of median piece, each lateral lobe apex with two groups of nearly uniform setae oriented in different directions (Fig. 8b, e). Distribution. China (Yunnan). Type Series. Holotype: (Ƌ), Yunnan: Lijiang: (26.8 N, 100.2 E), IV1996 (BAAF). Paratype: (1 Ƌ, same data as holotype) (CAF). Etymology. The name refers to the plant on which it was found, Tsuga spp.Published as part of Yu, Guoyue, Montgomery, Michael E. & Yao, Defu, 2000, Lady Beetles (Coleoptera: Coccinellidae) From Chinese Hemlocks Infested With The Hemlock Woolly Adelgid, Adelges Tsugae Annand (Homoptera: Adelgidae), pp. 154-199 in The Coleopterists Bulletin 54 (2) on pages 167-169, DOI: 10.1649/0010-065X(2000)054[0154:LBCCFC]2.0.CO;
Comparison analysis for classification algorithm in data mining and the study of model use
No full textNeoserica lucidifrons Ahrens 2003
No full textNeoserica (s. str.) lucidifrons Ahrens, 2003 Material examined 1 ♂ ‘ Guilin, Huangkeng, Jianyang, Fujian, 17.IV.1960, 290– 310 m, leg. Pu Fuji’ (IZAS), 1 ♀ ‘ Guilin, Huangkeng, Jianyang, Fujian, 11.IV. 1960, 270 m, leg. Ma Chenglin’ (IZAS), 1 ♀ ‘ Dazhulan-Xianfengling, Huangkeng, Jianyang, Fujian, 2. V.1960, 950– 1170 m, leg. Ma Chenglin’ (IZAS), 1 ♂, 2 ♀♀ ‘ Defu, Napo, Guangxi, 18.VI.2000, 1350 m, leg. Li Wenzhu’ (IZAS), 1 ♂ ‘ Defu, Napo, Guangxi, 18.VI.2000, leg. Zhu Chaodong’ (IZAS), 1 ♂ ‘ San’ gang, Mt. Wuyishan, Fujian, 16–28.V.2004, leg. Yuan Caixia, Li Jing’ (HBUM), 8 ex. ‘ China-Guangdong, Daqjao env., 1000– 1200 m, 24°54 ʹ N– 113°01 ʹ E, 1.–3.v.2002, Dr. R. Fencl lgt.’ (CP). Remarks This species was known only from its type locality in northern Vietnam; it is recorded here for the first time from China.Published as part of Liu, Wan-Gang, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2015, New species and records of the Neoserica (sensu stricto) group (Coleoptera: Scarabaeidae: Sericini), pp. 2379-2395 in Journal of Natural History 49 (39) on pages 2392-2393, DOI: 10.1080/00222933.2015.1034208, http://zenodo.org/record/400014
PERENCANAAN KONSTRUKSI MESIN DUPLIKAT KUNCI
No full textIrvan. 2023. Perencanaan Konstruksi Mesin Duplikat Kunci. Laporan Tugas Akhir. Institut Teknologi Nasional Malang. Fakultas Teknologi Industri. Teknik Mesin Diploma Tiga. Dosen Pembimbing : Dr. Aladin Eko Purkuncoro, ST., MT.
Mesin duplikat kunci sangat diperlukan untuk kebutuhan sehari-hari. Banyak sekali fungsi yang bisa kita dapatkan dengan kita memiliki mesin kunci. Salah satu contohnya adalah kita bisa menggandakan kunci yang kita miliki sehari-hari, apakah kunci rumah, kunci mobil, kunci motor, atau lain sebagainya.
Metode yang diterapkan dalam perancangan konstruksi mesin duplikat kunci ini diawali dengan perancangan konsep, penyajian gambar, dan identifikasi alat dan bahan yang digunakan pada perancangan konstruksi mesin duplikat kunci yang terdiri dari 2 jenis mesin, yaitu : DEFU 339C dan DEFU 238BS.
Mesin duplikat kunci ini dirancang untuk membantu para penduduk menggandakan kunci-kunci baik perkakas maupun kendaraan agar tidak terhambat saat melakukan aktifitas dan menjadi lebih efisiens karena proses pembuatan duplikat kunci ini menggunakan alat yang dirancang dengan memperlihatkan aspek biaya, efisiensi, dan efektivitas. Alat ini menggunakan sumber tenaga dari motor listrik dengan desain konstruksi yang minimalis tetapi dengan biaya produksi alat yang relatif murah dengan produk sejenis yang dijual dipasaran. Proses dimulai dari pemilihan jenis bahan kunci, kemudian bahan kunci dicekam pada mesin duplikat beserta kunci induk dengan bentuk yang sama sehingga presisi dan berfungsi dengan baik
Ontholestes napoensis Yang & Zhou, sp. nov.
No full textOntholestes napoensis Yang & Zhou, sp. nov. (Figs. 1 A–F) Material examined: Holotype: male, CHINA: Guangxi: Napo, Defu (23.2915 N, 105.8051 E), 1350 m, 2000. VI. 13, Jun Chen coll. (IZCAS). Description. Measurements of the holotype: Body length 10.5 mm; HW: 2.30; HL: 1.30; CL: 0.95; PO: 0.15; PW: 2.10; PL: 2.15; EW: 3.00; EL: 2.55; ELS: 1.10. Male. Body relatively small, dull, black, front angles of head and pronotum with scattered short golden pubescence; labrum black with light yellow edge, mandibles and maxillary palps black, clypeus brown; femora black with golden pubescence, tibiae red brown; elytra black with yellow and brown pubescence. Head nearly rectangular (Fig. 1 F), distinctly transversal, slightly wider than pronotum; mandibles slender, eyes big and prominent, occupying almost entire sides of head, their longitudinal diameter five times as long as temporal region. Surface rough and rugose, covered with umbilicate punctures; dosally with black pubescence, mixed with sparse golden pubescence; vertex with very narrow impunctate midline. Antennae short, gradually widening towards apex; 1 st segment longest, 2 nd one third as long as 1 st, 3 rd narrower than, and twice as long as 2 nd, 4–5 th short, 4 th at most 1.5 times as long as broad, 5 th slightly longer than broad, 6–10 th distinctly wider than long, gradually increasing in width towards apex of antenna, last segment distinctly longer than 10 th and longer than wide, subacuminate. Pronotum oblong, slightly longer than wide, and narrower than two elytra together in closed position; widest at level of straight anterior margin, slightly convergent towards rounded posterior angles, concavely narrowed in basal third, posterior margin moderately convex, disc with short impunctate midline of about one third of pronotum length and directly in front of pronotal base; punctation and pubescence similar to those on head. Scutellum triangular, densely covered with black velvety pubescence, with golden pubescence at anterior angles. Elytra subquadrate, slightly dilated posteriad; as long as wide, slightly longer than pronotum; surface densely and finely punctate, with brassy pubescence, mixed with golden pubescence. Abdomen gradually narrowed towards apex, finely and densely punctate; tergites III–V sparsely covered with golden pubescence, each with one pair of black tomentose spots medially; tergites VI and VIII with golden pubescence at anterior angle, tergite VII with golden pubescence along anterior margin. Posterior margin of sternite VIII (Fig. 1 A) deeply and broadly excised medially, densely with long black erect setae; posterior margin of tergite X (Fig. 1 B) almost straight with numerous long black setae; posterior margin of sternite IX (Fig. 1 C) triangularly emarginate medially, with moderately long black setae. Aedeagus (Figs. 1 D–E) moderately sclerotized, almost symmetrical; median lobe elongate, in ventral view moderately constricted with apex sharply pointed; in lateral view apical portion of median lobe bent ventrad, with a small process near apex. Paramere short and stout, about one third as long as median lobe, its apex rounded, with 6 fine setae. Female. Unknown. Distribution. Known only from the type locality in Guangxi, China. Remarks. In habitus the new species is similar to O. murinus (Linné, 1758), but differs from the latter in the shape of head, the colour of antennae and the shape of male genitalia. Etymology. The species is named after the type locality, Napo, in Guangxi Province, China.Published as part of Yang, Zhuo & Zhou, Hong-Zhang, 2012, Review of Chinese species of the genus Ontholestes Ganglbauer, 1895 (Coleoptera: Staphylinidae: Staphylininae) with description of two species new to science, pp. 1-20 in Zootaxa 3191 on pages 3-5, DOI: 10.5281/zenodo.28006
Parapsestis hausmanni Laszlo, Ronkay, Ronkay & Witt 2007
No full textParapsestis hausmanni Laszlo, Ronkay, Ronkay & Witt, 2007 Figs 6, 18, 27. Parapsestis hausmanni Laszlo, Ronkay, Ronkay & Witt, 2007: 237, fig. 191, pl. 27: 10–12. Type-locality: Vietnam, Fan-si-pan. Holotype ♂ (MWM). Material examined. 1 ♂, China, Guangxi, Napo, Defu, 1300 m, 16.VIII. 1998, coll. He Tongli, slide no. Drep- 00591. (IZCAS) Distribution. China (Guangxi), Vietnam. Remarks. This species is recorded from China for the first time.Published as part of Jiang, Nan, Yang, Chao, Xue, Dayong & Han, Hongxiang, 2015, An updated checklist of Thyatirinae (Lepidoptera, Drepanidae) from China, with descriptions of one new species, pp. 1-48 in Zootaxa 3941 (1) on page 34, DOI: 10.11646/zootaxa.3941.1.1, http://zenodo.org/record/28820
Pythamus rufus Wang & Zhang, 2015, sp. n.
No full textPythamus rufus sp. n. (Figs 11–19) Description. Body length (including forewing): ♂, 6.7 mm. Crown (Figs 11, 13) with red markings at lateral carina and submarginal carina. Median longitudinal carina of frontoclypeus is lamellate in upper half (Figs 12, 13). Forewing (Figs 11, 12) brown and translucent, marked with dark chocolate brown stripes in middle and end part, and two white semicircular spots on outer and inner margins respectively. Male pygofer (Fig. 18) posteriorly narrowed along with caudo-ventral margin. Pygofer ventral process (Fig. 18) rather straight, slightly longer than pygofer, with about 5 toothed process distally. Aedeagus (Figs 16, 17) with bilobed apodeme arising from atrium and extended dorsolaterad; shaft recurved dorsally, apex hooked, subapex with a pair of lateral conical processes; gonopore apical. Style (Fig. 19), with footlike apex of apophysis having elongated lateral angle, apodeme apex acute. Subgenital plate (Fig. 15) elongate. Type material. Holotype: ♂ (NWAFU), China, Guangxi Province, Napo Defu Natural Reserve, 1400 m, 7.viii. 2013, Qingquan Xue. Etymology. The specific epithet “ rufus ”, meaning red, refers to the red lateral markings on crown.Published as part of Wang, Yang & Zhang, Yalin, 2015, Two new species in the leafhopper genus Pythamus Melichar (Hemiptera: Cicadellidae: Evacanthinae) from China, pp. 429-436 in Zootaxa 4058 (3) on page 435, DOI: 10.11646/zootaxa.4058.3.9, http://zenodo.org/record/23524
Chaetarthria chenjuni Jia & Yang 2020, sp. nov.
No full textChaetarthria chenjuni Jia & Yang, sp. nov. (Figs 1–7) Type material. Holotype. male (SYSU), China, Hainan, Wuzhishan Mt., Guanshandian, 18˚53´N, 109˚41´E, elev. 650 m, 21.IV.2012, Yin Ziwei leg. Paratypes (3 spec. IZCAS; 2 spec. NMPC; 2 spec. SHNU; 6 spec. SYSU). 5 spec. same data as holotype; 1 male, 1 female, China, Hainan, Lingshui County, Diaoluoshan Mt., Winding Road, 18˚42´N, 109˚52´E, elev. 600–1000 m, 28.IV.2012, Peng & Dai leg.; 2 females (IZCAS: IOZ(E)20022538, IOZ(E)20022533), China, Guangxi, Napo, Defu, elev. 1440 m, 3.IV.1998, Wenzhu Li leg. (transcribed from Chinese); 1 female (IZCAS: IOZ(E)20022536), locality as above, elev. 1300 m, 14.VIII.1998, Tongli He leg. (transcribed from Chinese); 3 females, China, Guangdong, Shenzhen, Dapeng Peninsula, Getian Village, 22.48157°N, 114.62643°E, 2.VIII.2019, Jia & Mai leg. (transcribed from Chinese). Diagnosis. This new species may be close to C. indica d'Orchymont, 1920. It can be distinguished from C. indica by its labrum black, elytra uniformly black, maxillary palps piceous, ventral surface black, legs black with tarsomeres dark brown, elytra with distinct punctures as well as the systematic punctures, an arrangement otherwise only known from C. saundersi d'Orchymont in the Oriental Region; aedeagus with median lobe broadly rounded apically, without a flagellum arising out of the middle of anterior margin, gonopore oval (Fig. 7). General description. Labrum same colour as clypeus, maxillary palps uniformly dark reddish brown, pronotum with posterior angles dark brown, only slightly lighter than disc, elytra uniformly black. Ventral surface black; legs black, with tarsomeres dark brown. Head and pronotum without punctures. Pronotum without distinct anterior angles, posterior angles acute. Elytra with 4 distinct regular series of punctures, between regular series of punctures with 2 distinct irregular series of punctures, lightly finer than systematic punctures, lateral portion with irregular punctures, coarser than those on disc. Aedeagus with phallobase ca. 1.6× as long as parameres, median lobe broadly rounded apically, without a flagellum, gonopore situated apically. Description. Size and Form. 2.4–2.6 mm. Broadly oval, strongly convex (Fig. 1). Elytra slightly longer than wide. Colour. Dorsum black. Labrum same colour as clypeus or slightly lighter, without lighter anterior margin. Maxillary palps uniformly dark reddish brown. Pronotum with posterior angles dark brown (Jia et al., 2018: fig. 3a), only slightly lighter than disc. Elytra uniformly black (Figs 1, 3). Ventral surface black. Mentum dark brown. Legs black with slightly lighter tarsomeres; epipleura dark brown. Head. Ground punctation on labrum, clypeus and frons undetectable (Fig. 4). Systematic punctures on labrum, frons and clypeus very fine but detectable. Labrum not emarginate anteriorly. Eyes small, slightly protruding, separated by ca. 5.5 × width of one eye. Maxillary palps about a half as long as width of head, apical palpomere almost symmetrical and longer than penultimate (Jia et al., 2018: fig. 3d). Labial palps about one-third as long as width of mentum, apical palpomere conical, shorter than 2nd, 2nd palpomere with numerous long setae on inner and outer face. Antennae 8-segmented, scape almost as long as following antennomeres combined, club loosely segmented. Mentum (Jia et al., 2018: fig. 3d) longer than wide, quadrate, entire anteriorly; with very fine and scattered punctures anteriorly, not punctate medially. Thorax. Pronotum shinning, without distinct anterior angles, lateral margin of anterolateral angle dilated, posterior angles acute (Fig. 6); lateral stria present along entire lateral margin, terminating posteriorly at hind angle. Pronotal ground punctation undetectable, systematic punctures very fine but detectable. Elytra smooth and shining, with 4 distinct regular series of punctures (Fig. 5) between regular series of punctures with a few irregular series of punctures (Fig. 3), lateral portion with irregular punctures that are coarser than those on disc. Sutural stria reaching half of elytral length (Jia et al., 2018: fig. 3c), no series of punctures before sutural stria. Prosternum extremely short, only slightly convex, not carinate. Mesosternum glabrous, slightly concave, with a median, transverse and lightly arcuate ridge at level of anterior mesocoxal margin. Metasternum slightly raised, a little more convex and sparsely pubescent medially. Metepisterna about 4.3× as long as wide, more densely pubescent than metasternum, almost parallel sided except posteriorly, where inner margin bends smoothly towards outer margin. Procoxae densely pubescent, meso- and metacoxae glabrous. Femora with sharply defined tibial grooves on inner face; Femora stout. Pro- and meso-femora densely pubescent except on apical extremity; anterior half of metafemora densely pubescent, posterior half glabrous with some coarse punctures (Jia et al., 2018: fig. 3b), posterodorsal margin densely pubescent. Tibiae slender, hardly flattened. Tarsi with 5 tarsomeres, first metatarsomere shorter than second. Abdomen. Ventrites 1–2 with a large cavity on each side, filled with a hyaline mass supported and covered by a fringe of long stiff yellow setae rising from anterior margin of basal ventrite (Fig. 2); first two ventrites carinate medially. Aedeagus. Aedeagus with phallobase ca. 1.6× as long as parameres; parameres narrowly rounded apically; median lobe distinctly broader than parameres medially, broadly rounded apically, without a flagellum, gonopore situated apically (Fig. 7). Etymology. The species is named after Dr. Jun Chen, a specialist of mites from Institute of Zoology, Chinese Academy of Sciences, Beijing, China, who kindly invited the senior author to examine the specimens in IZCAS. Distribution. China (Hainan, Guangxi, Guangdong).Published as part of Jia, Fenglong, Yang, Zhenming, Jiang, Lu, Chen, Kai & Jiang, Shujiao, 2020, Chaetarthria chenjuni Jia & Yang, sp. nov. (Coleoptera: Hydrophilidae), a new species from China and additional faunistic records, pp. 146-149 in Zoological Systematics 45 (2) on pages 147-149, DOI: 10.11865/zs.202019, http://zenodo.org/record/461721
Multi-agent Coordination Based On Contract Net Protocol
No full textIn multi-agent system, agents need autonomy and collaboration to accomplish a complex task. Contract net protocol (CNP) is coordination mechanism often used in a multi-agent system. Due to the limitations inherent in the conventional CNP, this paper proposes a Norm-based CNP to improve the efficiency and effectiveness of the coordination processes in a multi-agent system. First, a three-dimensional taxonomy of norm is put forward in terms of the hierarchy, type and flexibility of norms. Then a coordination process guided by Norm-based CNP is developed under the taxonomy framework. The new coordination process consists of two principal stages and five sub-divided phases, providing a feasible solution for the optimization of the candidate selection. The merits of dividing the process into two stages are converging coordination process as soon as possible and controlling whole system effectively. In collaborative process, norms ensure to achieve global performance and agents pursuing maximal local performance to achieve satisfied result. Finally a case study is performed to illustrate the real application of the proposed approach.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000273591400089&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Computer Science, Artificial IntelligenceEngineering, Electrical & ElectronicEICPCI-S(ISTP)
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