240,547 research outputs found
Frequency domain iterative feedforward/feedback tuning for MIMO ANVC
No full textA new iterative feedback/feed-forward tuning (IFFT) method is presented for multiple-input multiple-output (MIMO) control systems that relies on efficient computation of the negative gradient of the controller cost function in the frequency domain. The iterative method is using only one experiment per iteration and it is therefore suitable for realtime implementation for periodic adjustment of the controller. The primary target application area of the presented method is self-tuning feedback control in active noise and vibration control (ANVC)
Simulation results of 3D ETS (Episodic Tremor and Slow-slip) asperity-in-matrix model using QDYN earthquake simulator
No full textThis data set contains simulation results of 3D ETS asperity-in-matrix model of Matlab .mat files for
Luo, Y., and Liu, Z. (2021) Fault Zone Heterogeneities Explain Depth-dependent Pattern and Evolution of Slow Earthquakes in Cascadia, Nature Communications.
It is generated by QDYN earthquake simulator (https://github.com/ydluo/qdyn Luo, Y., Ampuero, J. P., Galvez, P., Van den Ende, M., and Idini, B. (2017). QDYN: a Quasi-DYNamic earthquake simulator (v1. 1). Zenodo.(doi: 10.5281/zenodo. 322459).)
1. Uniform Model (10 years, dense output, Uniform_model/)
2. Binary (Bi-modular) Model (4 years, Binary_model/)
3. Linear Model (40 years, dense output, Linear_model/)
4. Comparison of asperity distributions (asp_patttern/):
4.1 (asp_patttern/tri/) - hexagon pattern asperity distribution
4.2 (asp_patttern/sqr/) - rectangular pattern asperity distribution
4.2 (asp_patttern/rnd/) - random asperity distribution
File format: (see details in documents of QDYN)
p - model settings
ot0, ot3d: timeseries outputs
ox0, ox3d: snapshot outputs<br
Frequency domain iterative feedforward/feedback tuning for MIMO ANVC
No full textA new gradient estimation method is proposed that relies on efficient computation of the negative gradient of the average linear quadratic cost function completely in the frequency domain. Based on the proposed theory, a new iterative tuning method is developed to solve linear multi-input multi-output Active Noise/Vibration Control problems. Compared with published iterative tuning methods, the new method has the added advantage that the number of experiments per iteration is reduced to one. Combined with the other advantage of relativelysimple controller structures, the method is suitable for real-time implementation as an adaptive controlle
The Luo Yi: Memoirs of Miss Luo
No full textMy senior project, The Luo Yi: The Memoirs of Miss Luo, is a creative narration based on my China journals. The seven chapters of The Luo Yi cover the time period of January through March 1993, during which I performed in a traditional opera variety show and became acquainted with its professional singers, traveled to the countryside to film a television short about the Spring Festival, and worked for a joint-venture dinner theater. The thesis of my project became an inquiry into the meaning and nature of self and society; it raises specific philosophical questions concerning nationality, tradition and modernization, human relationships, and economics on global and personal levels
Dryopteris jiucaipingensis (Dryopteridaceae), a New Species in Dryopteris sect. Hirtipedes from Guizhou, China
No full textA new fern species, Dryopteris jiucaipingensis P. S. Wang, Q. Luo & Li Bing Zhang (Dryopteris Adans., sect. Hirtipedes Fraser-Jenk.; Dryopteridaceae), is described and illustrated from northwestern Guizhou, China. Dryopteris jiucaipingensis is most similar to D. lunanensis (Christ) C. Chr., but the former taxon has light brown rachis scales and occurs in alpine regions (at an elevation of 2580 m), while the latter has nearly black rachis scales and is found in montane and lowland areas (below 900 m)
Bidirectional Luo Converter Fed Switched Reluctance Motor
No full textThe present work aims at designing and modelling of a bidirectional DC-DC LUO converter for driving a Switched Reluctance Motor. LUO converters are new series of DC/DC Converters that have very low ripple of voltage and current and have output wave with high quality, high power density and high transfer voltage gain and don’t have circuit elements parasitic limits of traditional converters. LUO converters have very high voltage transfer gains in geometric progression on stage by-stage. A C- Dump converter is used to drive the SRM drive. The present design aims at improving the efficiency of the Switched Reluctance Motor drive system by the incorporation of the bidirectional DC-DC LUO converter between the electrical source and the drive system. http://dx.doi.org/10.11591/telkomnika.v12i12.6883
Volutellonectria asiana J. Luo, X. M. Zhang & W. Y. Zhuang 2012, sp. nov.
No full textVolutellonectria asiana J. Luo, X.M. Zhang & W.Y. Zhuang, sp. nov. FIGS.2A− B, 3A− H MycoBank MB561607 Etymology. The specific epithet refers to the locality of the fungus. Ascomata on old sporodochia or thin basal stromata, perithecial, solitary or 2−5 in a group, superficial, obpyriform, 110−210 µm high, 85−190 µm diam, with a small and red papilla, not collapsing or laterally collapsing when dry, red-orange when fresh and orange to red-orange when dry, turning dark red in 3% KOH and orange-yellow in lactic acid, smooth. Ascomatal wall 7.5−12 µm thick, of two layers; outer layer 6−9.5 µm thick, cells angular, 4−7.5 × 2.5−5 µm, cell wall 0.5−1.5µm thick; inner layer 1.5−3.5 µm thick, cells flattened, 5−11 × 1−2 µm, cell wall 0.5−1 µm thick. Asci subcylindrical to clavate, 8-spored, with an apical ring, 35−47 × 4−6 µm (n = 50). Ascospores subfusoid, uniseptate, not constricted at the septum, hyaline, smooth, irregularly biseriate, 9.5−15 × 2−3 µm (n = 50). Sporodochia solitary or gregarious on substrate, usually stipitate, with a small basal stroma, 75−145 µm diam. Seta arising from sporodochial base and surrounding the conidiophores, 175−325 µm long, 3−5.5 µm wide at base, tapering to a round apex, 1−4-septate, smooth, hyaline, walls 0.5−1.5 µm thick. Conidiophores branched, 2540 µm long, 2−3 µm wide at base, closely aggregated. Conidiogenous cells in whorls of 2−4, adpressed, straight, cylindrical, slightly tapering towards the tip, 6.5−13 µm long, 1.5−2.5 µm wide at base, 0.5−1.5 µm near aperture (n = 50). Conidia rod-shaped, distally rounded, with a median displaced hilum, straight, 1-celled, hyaline, smooth, 4−8.5 × 1.5−2.5 µm (n = 50). Colonies on PDA 3 cm diam after 5 d in the dark at 24 C, pale pinkish cinnamon, surface velvety, aerial mycelium white to yellowish, reverse light pinkish cinnamon. Colonies on (CMD) reaching 2.5 cm diam after 5 d in the dark at 24 C, pale pinkish buff, surface felty, aerial mycelium absent to sparse, reverse light buff. Conidiophores simple, unbranched, erect, septate. Conidiogenous cells cylindrical, slightly tapering towards the tip, 15−52 µm long, 1−1.5 µm wide at base, 0.51 µm near aperture (n = 50). Conidia subellipsoid to subfusoid, distally rounded, with a median displaced hilum, straight, 1-celled, hyaline, smooth, 4−11.5 × 1.5− 2.5 µm (n = 50). Sporodochia not observed. Holotype. CHINA. HAINAN, Bawanling, 1100 m, on leaves of a palm, 6 July 2000, Zhuang W. Y., Wu W. P. and Zhang X. M., H17, HMAS 76861, ex type culture HMAS 188475. Paratype. Thailand. Saraburi, Khao Yai National Park, Phaedeodai, 1100 m, on Pandanus sp., 12 August 1997, Samuels G. J . and Chaverri P., 8410, BPI 745740. Notes. Volutellonectria asiana is most similar to V. consors in having red-orange and obpyriform perithecia with a red papilla, subcylindrical to clavate asci with an apical ring, hyaline ascospores with a smooth surface, smooth-walled sporodochial setae, 1-celled conidia, and light-colored colonies. V. consors, however, differs in having larger perithecia 210−270 µm high and 150−220 µm diam, a hairy perithecial surface, thicker perithecial walls 15−25 µm thick, somewhat longer asci 40−55 µm long, wider ascospores 3− 4 µm wide, ellipsoid conidia, and red sclerotia formed in culture (Samuels 1977). Our molecular data also support the establishment of V. asiana as a new species (FIG. 1). The two isolates are grouped together with high statistical support (1.00 BIPP; 100% BP) and separated from the morphologically similar species, V. consors.Published as part of Luo, Jing & Zhuang, Wen-Ying, 2012, Volutellonectria (Ascomycota, Fungi), a new genus with Volutella anamorphs, pp. 1-10 in Phytotaxa 44 on pages 5-6, DOI: 10.11646/phytotaxa.44.1.1, http://zenodo.org/record/489498
Crossodonthina bidentata Luo & Chen, 2009, sp. nov.
No full textCrossodonthina bidentata, sp. nov. Figures 1–14, Tables 1–3 Type material. Holotype: female, China, Zhejiang Province, Tianmu Mountain (alt. 1200–1500m, 30 o 18 ’– 20 ’ N, 119 o 26 ’– 28 ’ E), 14 -IV-05, collection number C 9248, collected by Chen Jian-xiu, Luo Yongzheng and other students. Paratypes: 11 females, 5 males, and 2 juveniles; 1 female, alt. 339m, 12 -IV-05, collection number C 9242; 1 female and 1 male, alt. 340–700m, 15 -IV-05, collection number C 9245; 8 females and 1 juvenile besides 6 specimens in alcohol, alt. 1020–1220m, 14 -IV-05, collection number C 9249; other data as holotype. All deposited in the School of Life Science, Nanjing University, China. Description. Body length. Up to 2.2mm. Color. Red while living and wholly white in alcohol. Head. Head hypognathous. Eyes 2 + 2, unpigmented and separated from each other (Fig. 1). Ratio of antenna to head as 1:1.3–1.9. Ant. III & IV dorsally fused. Length ratio of antennal segments as I: II: (III + IV) = 1: 0.7–0.9: 1.6–2.4. Ant. I and II respectively with 9 and 11 setae. Ant. III with 18 common setae. Ant. III organ consisting of 5 sensory setae, including sgd, sgv, ms and 2 strongly curved rods in separate pits. Ant IV apical bulb trilobed, dorsal chaetotaxy as 8 S, i, 12 mou and or (Figs. 3, 4 & 5). Buccal cone weakly developed. Labrum truncate and granulated, setal formula as 2 / 5, 2 (Fig. 6). Labium with 2 x and 3 setae (A, C, D) on proximal part of palp, 4 (E, F, G, f) on submentum and 4 (b, c, d, e) on mentum (after Massoud 1967) (Fig. 7). Mandible elongate, consisting of 2 subequal prominent basal teeth and 3 curved rami. Upper ramus small, feather-like and densely with thin and simple (rarely bifurcated) setae; mid ramus as flagellum, subequal to upper ramus in length; lower ramus large, 3–4 times as long as upper two, having 2 densely fringed lamellae, marginal setae on lamellae bi- to multi-furcated (rarely simple), setae thin on upper (dorsal) lamella and thick on lower (ventral) lamella (Fig. 8). Maxillary head consisting of 2 stylets, inner one with 2 minute apical teeth, outer one branched apically (Fig. 9). Cephalic tubercles and chaetotaxy. Dorsal central area with 6 separate tubercles and 21 setae; tubercle Cl with 4 setae (2 F, 2 G), 2 An each with 4 setae (B, C, D, E), Fr with 3 setae (O, 2 A), and 2 Oc each with 3 setae (Oca, Ocm, Ocp). Dorsal posterior area with 4 separate tubercles and 8 setae totally; 2 Di each with 1 seta (Di 1) and 2 De each with 3 setae (De 1, De 2, Di 2). Dorsal lateral area with 3 tubercles fused and 15 (16) setae totally; Dl, L and So respectively represented by 6, 4 and 5 (6) setae (Fig. 1 and Table 1). Ventral side respectively with 6 and 8 setae in internal (Vi) and external (Ve) areas (Fig. 7). Tubercle Number of setae Types of setae Names of setae Cl 2 M F, F Body tubercles and chaetotaxy. Tubercles rounded. Th. I with 3 + 3 tubercles (Di, De, Dl). Th. II-Abd. IV respectively with 4 + 4 tubercles (Di, De, Dl, L). Abd. V with 5 tubercles; 2 Di fused, De and Dl fused, 2 L separate and ventrally situated. Abd. VI with 1 + 1 tubercles. Sensory seta (s) and sensory microseta (ms) formula as 2 +ms, 2 / 1, 1, 1, 1, 1 (Figs 1 & 2 and Table 2). Each anal valve (Av) with 3 microsetae in both sexes. Genital plate with 12–25 and 31–53 setae respectively in female and male (Fig. 14). Appendices. Chaetotaxy of legs, ventral tube and furcular remnant shown in Table 2. Tibiotarsi I–III respectively with 19, 19, 18 setae. Among setae on each femur and tibiotarsus, 1 ventral seta particularly large. Unguis ventrally with 1 inner tooth, basal granules and medial transverse striae. Unguiculus and tenent hair absent (Fig. 13). Ventral tube anteriorly with 1 + 1 proximal and 3 + 3 distal setae (Fig. 11). Furcula reduced to elliptic area with 5 (6) setae (Fig. 12). Etymology. The name of the new species is derived from Latin bi- and dent- for two teeth because of the two prominent basal teeth on mandible. Terga Legs Di De Dl L Scx Cx Tr Fe T Th. I M M+me M -- 0 3 6 13 19 Th. II M+me+mi M+me+mi+s M+ 2 me+s+ms M+ 2 me 2 7 6 12 19 Th. III M+me+mi M+me+ 2mi +s M+ 2 me+s M+ 2 me 2 8 6 11 18 Terga Sterna Abd. I M+me M+ 2 me+s M+me M+ 2 me VT: 4 Abd. II M+me M+ 2 me+s M+me M+ 2 me Ve: 5 Abd. III M+me M+ 2 me+s M+me M+ 2 me Ve: 4 (5) Fu: 5 (6) Abd. IV M+me M+me+s M+ 2 me 5 M+me Ve: 10 (9) Vl: 5 (4) Abd. V 2 (M+ 2 me) ----------- 2 M+ 2 me+s ----------- 2 M+ 2 me Ag: 3 Vl: 1 Abd. VI ---------------------------- 4 M+ 3 me ----------------------------- Ve: 14 (13) Ecology. Found in leaf litter in deciduous forest. Remarks. The new species is unique in the genus in having tubercles Di fused on Abd. V and in the unusual structure of mandibles and maxillae. The mandible consists of 2 subequal prominent basal teeth, 1 whip-like ramus and 2 densely fringed rami of quite different sizes. The maxilla consists of 2 stylets, inner one with 2 minute apical teeth, outer one branched apically. Additionally, the labral chaetotaxy of the new species is / 5, 2; however, it is / 2, 2 in most species of Lobellini including the genus Crossodonthina. There are 5 (6) setae present on the furcular remnant in the new species, rather than 6 as in C. hainana, 4 as in C. montana and 3 as in most species in the genus, such as C. nipponica (see Yosii 1995), C. koreana, C. formosana, C. alatoserrata, C. tridentiens and C. tiantongshana. The macrosetae (M) are acuminate, very slightly ciliate on distal half and wingless but smooth in C. nipponica, C. koreana, C. formosana and C. hainana, and winged in C. alatoserrata and C. tridentiens. The new species is the third one with 2 + 2 eyes in the genus. It is similar to the 2 + 2 -eyed Chinese species, C. montana and C. hainana, in the Ant. IV with 8 sensory setae, unguis with 1 inner tooth and ventral tube with 4 + 4 setae, and the body dorsal chaetotaxy. However, it is easily distinguished from the latter two by the number of setae on cephalic tubercles Oc, as well as the Di tubercles fused on Abd. V, the structure of mandibles and maxillae, the number of setae on furcular remnant and the morphological feature of macrosetae (M) (Table 3). bidentata, sp. nov. montana hainana Mandible basal teeth 2 1 3Published as part of Luo, Yongzheng & Chen, Jian-Xiu, 2009, A new species of the genus Crossodonthina (Collembola: Neanuridae: Lobellini) from China, pp. 57-63 in Zootaxa 2121 on pages 58-62, DOI: 10.5281/zenodo.18810
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
- …
