3,028 research outputs found
Fine-Grained Multi-Class Object Counting
No full textMany animal species in the wild are at the risk of extinction. To deal with this situation, ecologists have monitored the population changes of endangered species. However, the current wildlife monitoring method is extremely laborious as the animals are counted manually. Automated counting of animals by species can facilitate this work and further renew the ways for ecological studies. However, to the best of our knowledge, few works and publicly available datasets have been proposed on multi-class object counting which is applicable to counting several animal species. In this paper, we propose a fine-grained multi-class object counting dataset, named KRGRUIDAE, which contains endangered red-crowned crane and white-naped crane in the family Gruidae. We also propose a specialized network for multi-class object counting and line segment density maps, and show their effectiveness by comparing results of existing crowd counting methods on the KR-GRUIDAE dataset
Franny Choi, 41st Annual ODU Literary Festival
No full textFranny Choi is a queer, Korean-American poet, playwright, teacher, organizer, pottymouth, GryffinClaw, and general overachiever. She is the author of Floating, Brilliant, Gone (2014), and a chapbook, Death by Sex Machine (2017). She has received awards from the Poetry Foundation and the Helen Zell Writers Program, as well as fellowships from the Vermont Studio Center and the Rhode Island State Council on the Arts. Her poems have appeared in journals including Poetry magazine, American Poetry Review, New England Review, and her work has been featured by the Huffington Post, PBS NewsHour, and Angry Asian Man
Vertically Integrated In-Sensor Processing System Based on Three-Dimensional Reservoir for Artificial Tactile System
No full textNext-generation artificial tactile systems demand seamless integration with neuromorphic architectures to support on-edge computation and high-fidelity sensory signal processing. Despite significant advancements, current research remains predominantly focused on optimizing individual sensor elements, and systems utilizing single neuromorphic components encounter inherent limitations in enhancing overall functionality. Here, we present a vertically integrated in-sensor processing platform, which combines a three-dimensional antiferroelectric field-effect transistor (AFEFET) device with an aluminum nitride (AlN) piezoelectric sensor. This innovative architecture leverages a Zr-rich, leaky antiferroelectric HZO film-a novel material for physical reservoir computing (PRC) devices capable of responding to external stimuli within the microsecond-to-millisecond range. We further demonstrate the 3D AFEFET's adaptability by tuning its discharge current via structural modifications, enabling sophisticated multilayered processing. As an integrated in-sensor processing unit, the 3D AFEFET and AlN sensor array surpass a comparable 2D configuration in both pattern recognition and information density. Our findings showcase a pioneering prototype for future artificial tactile systems, demonstrating the transformative potential of 3D AFEFET PRC devices for advanced neuromorphic applications.
Experimental Analysis and Mathematical Modeling of Program Efficiency in Gate-Side Injection Type FeFETs Depending on the Gate Interlayer
No full textWe experimentally analyze the incremental step pulse programming (ISPP) characteristics of gate-side injection type MIFIS FeFETs, which feature a metal - gate interlayer (G.IL) - ferroelectrics - channel interlayer (Ch.IL) - Si stack, with a focus on the role of the G.IL. We also propose a mathematical model considering ferroelectric (FE) switching behavior. MIFIS FeFETs have recently garnered attention due to their ability to achieve lower program (PGM) voltages and wider memory windows (MWs) compared to typical channel-side injection type charge trap flash (CTF) devices, thanks to the injection of charges (Q(it)') from the gate and polarization switching dynamics. However, guidelines on the influence of the G.IL on ISPP characteristics and endurance, critical for NAND cell, are lacking. Here, we experimentally investigate the impact of the G.IL on the ISPP slope of MIFIS FeFETs and, through mathematical modeling, propose a G.IL design to optimize MIFIS FeFET performance. Furthermore, we analyze the degradation of endurance characteristics depending on the type of G.IL, suggesting that the excessive Q(it) injected from the Ch.IL, together with polarization pinning, contributes to overall endurance degradation. Lastly, we demonstrate that by utilizing a low-kappa SiO2 G.IL (6 nm), a MW of 6.5 V and an ISPP slope greater than 3 can be achieved. Our MIFIS FeFET also exhibits disturbance immunity even at voltages exceeding 14 V, which is critical in preventing V-th shifts during various disturbances. Our research and model can provide valuable guidelines for the study of gate-injection type FeFET, which are actively being explored as next-generation NAND Flash memory technologies.
QJE-STD-18-253.R2-Supplementary_Material – Supplemental material for Development and assessment of the Korean Author Recognition Test
No full textSupplemental material, QJE-STD-18-253.R2-Supplementary_Material for Development and assessment of the Korean Author Recognition Test by Hyosun Lee, Eunjin Seong, Wonil Choi and Matthew W Lowder in Quarterly Journal of Experimental Psychology</p
From the Margins to the Forefront: Tillie Olsen's Mediation as Figure and Author
No full text45 pg.Tillie Olsen's life experiences and self-identification as a working class woman provide a strong basis for analyzing her fiction as partly autobiographical. As she wrote, she developed her position as a recognized and award winning author into that of a literary mediator for socially marginalized subjects, actively working to represent certain conditions of exclusion due to social, racial, economic, and sexual factors during the 1970's and 1980's. Through analysis of her fiction and non-fiction texts, her use of modernist writing techniques, her purpose as a writer, and her impact on the literary canon, it becomes possible to see how she has altered the literary landscape and has made those who suffer exclusion visible and legible.Advisor(s): Choi, Helen . Committee Member(s): Marshik, Celia.Stony Brook University Libraries. SBU Graduate School in Department of English. Charles Taber (Dean of Graduate School)
Replicating “Predicting the present with Google trends” by Hyunyoung Choi and Hal Varian (The Economic Record, 2012)
No full textIn this note, the author describes different ways one could try to replicate Choi and Varian (Predicting the present with Google trends, The Economic Record, 2012)
Replicating "Predicting the present with Google trends" by Hyunyoung Choi and Hal Varian (The Economic Record, 2012)
No full textIn this note, the author describes different ways one could try to replicate Choi and Varian (Predicting the present with Google trends, The Economic Record, 2012)
Replicating “Predicting the present with Google trends” by Hyunyoung Choi and Hal Varian (The Economic Record, 2012)
No full textIn this note, the author describes different ways one could try to replicate Choi and Varian (Predicting the present with Google trends, The Economic Record, 2012)
Volucella thompsoni Choi & Ôhara & Han 2006, n.sp.
No full textVolucella thompsoni n.sp. (Figs. 1A–I, 5A–D) Volucella matsumurai Han et Choi, 2001: 125, 206 (as new name of V. pellucens var. japonica Matsumura, 1916), misidentification (see Remarks of V. pellucens tabanoides). Diagnosis This species can be readily distinguished from other members of the Volucella pellucens group by its longer abdominal tergite 2 (longer than tergite 3, or at most 2.4x wider than long; Figs. 5A, C). Males can be further differentiated by their basoflagellomeres in lateral view slightly constricted in middle (Fig. 1C) and the surstyli greatly shortened in lateral view (Figs. 1G, H). Description Measurements and Ratios. Body length 11–16mm; wing length 11–13.8mm; antennal length 0.92–1.26mm; wingmesonotum ratio 2.46–2.89; eye ratio 0.51–0.59; eye contiguityvertex ratio 0.44–0.59; eye contiguityfrons ratio 0.4–0.57; basoflagellomere ratio 2–2.57; vein R 4+5 ratio 0.26–0.3; vein M ratio 0.48–0.56; fore tibiabasotarsomere ratio 2.25–2.6; 2nd tergite ratio 2–2.39; 2nd tergitescutellum ratio 1.64–1.95. Male. Head (Figs. 1A–C) yellow brown ground color with dark brown to black vertical triangle, postocular orbit, posteroventral portion of face, and gena; face yellow brown pilose with varying size of black macula posteroventrally; ventral portion of face distinctly protrude with more or less pointed apex; gena shiny black with short yellow setulae; lunule shiny yellow brown; frons yellow brown with black and yellow setulae mixed; eyes holoptic, dense pilose; antenna almost entirely yellow brown with black setulae; basoflagellomere 2.1–2.6x longer than wide, slightly constricted in middle. Thorax (Figs. 5A, B) with black setae and dense black to yellow brown setulae; 4–6 notopleurals, 4–5 supraalars, 4–5 postalars; 4–6 prescutellars; 4–7 marginal scutellars; 3–5 anepisternals; scutum smooth, shiny black with brown to dark brown lateral margins; postpronotum pale yellow with yellow brown setulae; notopleuron smooth, shiny dark brown with yellow brown and black setulae mixed; scutellum smooth, shiny brown densely with short black setulae; pleural and sternal sclerites short pubescent; anterior anepisternum black with long yellow brown setulae; posterior anepisternum black with yellow brown and black setulae mixed; katepisternum black, mostly with long black setulae; anterior anepimeron shiny black with long black setulae; posterior anepimeron brownish black without any setulae; katepimeron brown to dark brown with yellow setulae; meron dark brown with few setulae posteriorly; metasternum black with long black setulae ventrally; katatergite dark brown with black setulae; anatergite dark brown without setulae. Wing (Fig. 5A) hyaline with broad discal and anterior apical dark brown maculae; narrow areas along veins M 1, dmcu, CuA 1, and CuA 2 dark brown; wing surface microtrichose except for bare areas in anterior half of cell BM and anal lobe, and anterior 2/3 of cell CuP; 3–7 setulae along vein RS; calypter pale yellow, short pubescent with long plumose marginal hairs, lengths of hairs vary but longest one about 1/3 as long as halter; halter pale to yellow brown. Legs almost entirely black except basal 1/3–1/2 of fore and midtibiae dark brown; densely covered with black setulae. Abdomen (Figs. 5A, B) 1.3–1.7x longer than wide; tergite 1 shiny dark brown with yellow brown setulae; tergite 2 ivory white medially with narrow yellow brown longitudinal stripe, densely with pale setulae; tergites 3 and 4 shiny black with black setulae; sternite 1 black with yellow brown setulae; sternite 2 ivory white with pale setulae; sternite 3 anteriorly ivory white and posteriorly black; sternite 4 black with black setulae. Genitalia (Figs. 1G–I) dark brown in ground color; epandrium roughly square in lateral view; cercus yellow brown with yellow brown setulae, short, truncated in lateral view, surstylus greatly reduced with sharp posteromedial projection in lateral view, posterodorsally with inward directed 3–4 black teeth; hypandrium ventrally with whitish membrane; superior lobe basally with small triangular membranous area, single hooklike, curved downward; aedeagus pale yellow, largely membranous, and apically swollen. Female. Similar to male except for: frons almost entirely yellow brown; eyes (Figs. 1D–F) dichoptic; basoflagellomere transversely elliptic (1.9–2.3x longer than wide) without medial constriction; scutum with more extensive brownish portion than in male (Figs. 5A vs. C). Type materials Holotype Male, KOREA: Gangwondo: Wonjusi: Panbumyeon, Mt. Baegunsan, 28.VI.2000, D.S. Choi & S.K. Kim. Paratypes: KOREA: Chungcheongbukdo: Jecheonsi: Songgyeri, Jeolgol, 29. VI.1997, H.Y. Han et al., 1♂, 2♀, Chungcheongnamdo: Boryeongsi: Cheongnamyeon, Mt. Oseosan, 20.VII.1999, H.Y. Han et al., 1♀, Gangwondo: Wonjusi: Heungeopmyeon, Yonsei Univ. Campus, 3.VIII.1999, D.S. Choi, 1♀; ditto, 16.VII.2003, H.W. Byun, 1♀; ditto, 22. VI.2004, H.W. Byun, 1♀; ditto, 5.VII.2004, D.S. Choi et al., 3♀; Panbumyeon, Mt. Baegunsan, 21.VII.1998, D.S. Choi & S.K. Kim, 1♂, Yeongwolgun: Yeongwoleup, Mt. Taehwasan, 9. VI.2001, D.S. Choi & S.K. Kim, 1♂, Gyeonggido: Seongnamsi: Namhansanseong, 17.VIII.1993, S.J. Park, 1♀, Yangpyeonggun: Yongmunmyeon, Mt. Yongmunsan, 30.VII.1998, H.W. Byun et al., 1♀, Gyeongsangbukdo: Yeongjusi: Sunheungmyeon, Mt. Sobaeksan, 11. VI.2004, H.W. Byun et al., 1♂, Gyeongsangnamdo: Goseonggun: Yeonghyeonmyeon, Bongrimri, 21. VI.1987, 1♀, Hamyanggun: Macheonmyeon, Mt. Jirisan, Chilson Valley (706m), Malaise trap (70% EtOH), 27. VI –23.VII.2001, D.S. Ku, 1♀; Yeohangmyeon, 31. V.1987, 1♀, Sancheonggun: Samjangmyeon, Naewonsa, 13.VII.1990, D.S. Ku, 2♀, Uljugun: Samnammyeon, Mt. Yeongchuksan, 29. VI.2003, H.Y. Han et al., 1♀, Ulsan: Sangbukmyeon, Mt. Gajisan, 23. VI.1987, 1♀; ditto, 24. VI.1987, J.K. Kim, 1♀; ditto, 27. VI.1989, K.S. Kim, 1♀; ditto, 1.VII.1990, J.E. Park, 1♀; ditto, S.S. Kim, 1♀, Jeollabukdo: Mujugun: Sangbukmyeon, Mt. Deogyusan, 24.VII.1999, K.H. Kang, 1♀. JAPAN: Hokkaido: Kushiro, Lake Mashu (N. crater rim, Akan Nat. Park), 23–24.VII.1980, FC Thompson, 1♂ (USNM); Zenibako, Otaru, 20.VII.1965, T. Kocha, 1♂ (HUS), Zenibako, Otaru, 20.VII.1965, T. Kocha, 1♂ (HUS); Mitsumata, Kamishihoro, Tokachi, 21.VIII.1993, K. Kuromoto, 1♂, 1♀ (TPMT); Obihiro, 14.VIII.1995, H. Inoue, 1♀ (OUHJ); Koibuku Riv., Hidaka, 16.VII.1962, 1♀ (OUHJ); Hokkaido Univ. Exp. Forest, Tomakomai, 19.VIII.1977, K. Ôhara, 3♀ (TPMT); ditto, M. Suwa, 1♀ (TPMT); Ohnuma, Oshima, 30.VIII.1977, M. Yamamoto, 1♀ (TPMT), Honshu: Mt. Hayachine, Iwate Pref., 26.VII.1975, K. Tsuruta, 1♂ (TPMT); Renge Spa, Niigata Pref., 29.VII.1977, K. Baba, 1♀ (TPMT); Japon: Chunzenji (Nikko, Tochigi Pref.,), 22. –7–15, Edme Gallois (HUS), Uenohara, Minakami, Gunma Pref., 10.VIII.1987, N. Tamaki, 1♀ (TPMT); KisoOntake, Nagano Pref., 30.VII.1994, H. Ohishi, 2♀ (TPMT); Mt. Tateshinayama, Nagano Pref., 1.VII.1971, R. & F. Ishikawa, 1♂ (NSMT); Mt. Nyukasayama, Nagano Pref., 13.VII.1980, N. Koda, 1♂ (TPMT); Mt. Mitsutoge, Yamanashi Pref., 31.VII.1981, Y. Kurosawa, 1♀ (NSMT); Gozaishi, Nirasaki, Yamanashi Pref., 3.VIII.1992, H. Ohishi, 2♀ (TPMT); Daibosatu, Enzan, Yamanashi Pref., 19.VIII.1991, H. Ohishi, 1♀ (TPMT); Hirkura, Mie Pref., 9. VI.1991, H. Ohishi, 2♂ (TPMT); Sugitoge, Kyoto City, Kyoto Pref., 25.VII.1992, H. Ohishi, 1♀ (TPMT); Seryo, Kyoto Pref., 12.VIII.1937, T. Kimura, 1♀ (TPMT); Kitayama Riv., Okutamadani, Nara Pref., 26. VI.1994, Keitaro Harusawa, 1♀ (TPMT), Shikoku: Mt. Takashiroyama, Kisawa, Tokushima Pref., 17–18.VII.1994, Kiyoshi Masaki, 1♂, 1♀ (TPMT). Except for the Japanese paratypes (depositories shown in parenthesis), all the other type specimens including the holotype are deposited in YSUW. Distribution Korea, Japan. Biology Unknown. Etymology This species is named after Dr. F. Christian Thompson who contributed a great deal for the systematics of Syrphidae. He initially suggested the study of Volucella to the first author. Remarks We have occasionally found this species mixed with V. pellucens tabanoides specimens under same identification labels in the Korean institutions. These two species superficially resemble each other, but the new species is easily separable by the longer abdominal tergite 2 in both sexes, and much darker vertex in female. Further examination of the male genitalia strongly suggests that this species might not even be closely related to V. pellucens. The male genitalic structures (especially the highly reduced surstyli; Figs. 1G, H) are so unique that we were not able to associate the new species with any other Volucella species. We are currently investigating this matter using both morphological and molecular data (Choi et al., in prep.). Our preliminary analysis based on mitochondrial 16S rRNA and COII gene sequences suggests that V. thompsoni n.sp. might be more closely related to V. nigropicta (the zonaria species group) than the other species of the pellucens species group.Published as part of Choi, Deuk-Soo, Ôhara, Kenji & Han, Ho-Yeon, 2006, Taxonomic notes on the Volucella pellucens species group (Diptera: Syrphidae) with a description of one new species from the Eastern Palaearctic, pp. 1-19 in Zootaxa 1185 on pages 4-8, DOI: 10.11646/zootaxa.1185.1.1, http://zenodo.org/record/492043
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