45,254 research outputs found
Deep learning-based real-time damage assessment of lithium-ion batteries under dynamic impact
No full textLithium-ion batteries are widely used in diverse applications due to their high energy density and long service life. However, minor mechanical impacts during operation often induce hidden internal damage, creating safety and performance risks. If such damage is not addressed promptly, it can lead to fire, explosion, or other severe consequences. This study presents a real-time lithium-ion battery (LIB) damage detection and assessment method based on a deep learning framework that integrates acoustic emission (AE) techniques, convolutional neural networks (CNN), and long short-term memory networks (LSTM). A drop-weight impact test rig is designed to simulate low-velocity mechanical impacts and to collect AE signals across multiple impact energy levels. Signal pre-processing, including Savitzky-Golay smoothing, normalization, and Gaussian noise-based data augmentation, enhances model robustness. The proposed CNN-BiLSTM model achieves an average accuracy of 95 % in classifying four damage levels. Furthermore, electrochemical performance characterization, including internal resistance and capacity decay after cycling, validates the reliability of the AE-based classification results. This approach provides a feasible, non-destructive, and intelligent solution for monitoring the health status of lithium-ion batteries under dynamic mechanical impacts, contributing to improved safety and extended service life.
FIGURE 1 in The valid publication of the name Malus leiocalyca (Rosaceae)
No full textFIGURE 1. The holotype of Malus leiocalyca S.Z. Huang in Ku & Li (1990).Published as part of Deng, Yunfei, 2023, The valid publication of the name Malus leiocalyca (Rosaceae), pp. 85-88 in Phytotaxa 594 (1) on page 86, DOI: 10.11646/phytotaxa.594.1.9, http://zenodo.org/record/786898
Assessment of Self-Archiving in Institutional Repositories: Depositorship and Full-Text Availability
No full textThis research evaluates the success of open access self-archiving in several well-known institutional repositories. Two assessment factors have been applied to examine the current practice of self-archiving: depositorship and the availability of full text. This research discovers that the rate of author self-archiving is low and that the majority of documents have been deposited by a librarian or administrative staff. Similarly, the rate of full-text availability is relatively low, except for Australian repositories. By identifying different practices of self-archiving, repository managers can create new strategies for the operation of their repositories and the development of archiving policies
sj-pdf-1-epb-10.1177_2399808321998713 - Supplemental material for Quantitative evidence for leapfrogging in urban growth
No full textSupplemental material, sj-pdf-1-epb-10.1177_2399808321998713 for Quantitative evidence for leapfrogging in urban growth by Manon Glockmann, Yunfei Li, Tobia Lakes, Jürgen P Kropp and Diego Rybski in Environment and Planning B: Urban Analytics and City Science</p
Clematis jinzhaiensis Xue & Wang 1986
No full textClematis jinzhaiensis Xue & Wang (1986: 406). Type:— China. Anhui: Jinzhai, alt. 1500 m, 20 September 1982, Z.W. Xue 21 (holotype:AIB lost); same locality, alt. 800 m, 24 September 1981, J.Z. Shao 0120 (lectotype designated by Li et al. 2015: PE [PE00029910]). = Clematis lasiandra Maximowicz (1876: 213).Published as part of Deng, Yunfei, 2021, Notes on the typification of the name Clematis jinzhaiensis (Ranunculaceae), pp. 261-262 in Phytotaxa 528 (4) on page 261, DOI: 10.11646/phytotaxa.528.4.5, http://zenodo.org/record/579490
Li-Promoted La<sub><i>x</i></sub>Sr<sub>2–<i>x</i></sub>FeO<sub>4−δ</sub> Core–Shell Redox Catalysts for Oxidative Dehydrogenation of Ethane under a Cyclic Redox Scheme
No full textChemical
looping oxidative dehydrogenation (CL-ODH) of ethane utilizes
a transition metal oxide based oxygen carrier, also known as a redox
catalyst, to convert ethane into ethylene under an autothermal cyclic
redox scheme. The current study investigates a Li-promoted LaxSr2–xFeO4−δ (LaSrFe) redox catalyst for CL-ODH reactions.
While LaSrFe without Li promoter exhibits low ethylene selectivity,
addition of Li leads to high selectivity/yield and good regenerability.
Up to 61% ethane conversion and 90% ethylene selectivity are achieved
with Li-promoted LaSrFe. Further characterization indicates that the
Li-promoted LaSrFe redox catalyst consists of LiFeO2 (disordered
rock salt) and LaSrFe (Ruddlesden–Popper) phases. Moreover,
the surface of the redox catalysts is enriched with Li cations. It
is also determined the LaSrFe phase contributes to oxygen storage
and donation, whereas the activity and selectivity of the redox catalysts
are modified by the Li promoter: while oxygen for the CL-ODH reaction
is supplied from the lattice of the LaSrFe phase, the enrichment of
Li cations on the surface increases the resistance for O2– diffusion from the bulk and its subsequent evolution into electrophilic
oxygen species on the surface. The nonselective nature of the surface
oxygen species and the inhibition effects of Li promoter on O2– diffusion are further confirmed by pulse experiments.
On the basis of such findings, it is concluded that Li-promoted LaxSr2–xFeO4−δ is an effective redox catalyst for ethane
ODH in the absence of gaseous oxygen. Moreover, the selectivity of
the redox catalysts can be enhanced by the alkali metal oxide promoters
Information Literacy and Librarian-Faculty Collaboration: A Model for Success:
No full textIn the age of information explosion and technological advancement, issues of information storage, organization, access, and evaluation have become necessarily important in our societies. Addressing issues of information literacy and designing how they can be best integrated in students' learning process are of critical importance. Library professionals in the United States, particularly in the academia, have realized the importance of information literacy and have attempted in various ways to address these issues. The ultimate goal is to make information literacy an integral part of the academic curriculum, thus helping students to succeed not only during their years in college but also for their lifelong career choices. This article will look at ways of how information literacy can best be incorporated into students' academic experience, and how this process can make students' learning meaningful and successful. Specifically, the author will examine the model of librarian-faculty collaboration in integrating information literacy into the curriculum, as demonstrated in the Ohio Five Colleges' Information Literacy Program.Publisher version of this article is available at: http://www.white-clouds.com/iclc/cliej/cl24.ht
Urban canopy parameterization data for urban climate simulation using CCLM/DCEP and hourly 2m temperature output
No full textThis dataset includes artificial/scenario Urban Canopy Parameterization (UCP) data for urban climate modelling with COSMO-CLM/DCEP and the hourly 2-meter temperature output of the corresponding simulations. Each simulation has a resolution of 0.009 degree (~1km) and covers a domain of around 300x300km centred at Berlin area. The temperature output covers a 1-week heatwave event which lasted from 1st to 7th of August 2003. All the simulations are driven by the same lateral boundary climate data down-scaled from ERA-Interim data, and the purpose of the work is to study the influence of urban morphology on urban heat island effect. UCP files are created using R package (https://github.com/sebschub/dcepucp) by incorporating designed scenarios (varying urban forms) of detailed urban street canyon structures which include urban fraction, street canyon orientation, building width, street canyon width and building height distribution. The details about the generation of the UCP dataset and conducted simulations can be found in Li Y, Schubert S, Rybski D, Kropp JP (2020): Urban Form and Heat. Nature Communications
Translingual adaptations: Asian works in late nineteenth- and early twentieth- century French literature
No full textThis dissertation rethinks an important genre of world literature overlooked by previous scholars, namely, creative adaptations of Eastern works by Western authors based on received translations. Specifically, my dissertation focuses on how three major nineteenth- and twentieth-century French authors—Théophile Gautier, Stéphane Mallarmé, and Victor Segalen—adapted Sanskrit, Chinese, and Tibetan works into mainstream French literature. In a broader sense, my work reads these adaptations as significant contributions to world literature. My approach consists of closely comparing the adaptations with the previous translations on which Gautier, Mallarmé, and Segalen based their retellings, and against the source works in Chinese, Sanskrit, and Tibetan. In so doing, I tease out examples of truncation, addition, paraphrase, annotation, and unintentional misreading that befell these Asian works as they traveled across time, space, and cultural spheres. The first chapter traces how the vernacular romance “Heying Lou,” by Chinese writer Li Yu, morphed into Théophile Gautier’s novella “Le Pavillon sur l’eau.” The original story, first rendered into English by John Francis Davis under the name “The Shadow in the Water,” was then further translated into French by Jean-Pierre Abel-Rémusat under the title “L’Ombre dans l’eau,” upon which Gautier later based his “Le Pavillon sur l’eau.” By teasing out each author’s input in this multilayered transmission, I reveal how Gautier at once converged with and diverged from Li Yu by intentionally misinterpreting China and unwittingly recovering some important narrative traits of the “Heying Lou” lost in previous translations. The second chapter deals with Mallarmé’s retelling of the Nalopākhyānam episode of the Sanskrit epic Mahābhārata. Mallarmé based his Nala et Damayantî on Mary Summer’s adaptation of the same name, which in turn vulgarized the French Sanskritist Émile Burnouf’s translation of the Nalopākhyānam titled Nala épisode du Mahâbhârata. Indeed, when adapting Burnouf’s literalist translation, Summer embraced an assimilative approach while injecting much Orientalist cliché. For instance, she eroticized Damayantī’s body and wishfully smoothed out what she thought to be disjointed cuts between scenes in the Sanskrit original. Her systematic recourse to abridgement not only revamped the internal structures of the story, but also weakened the character Damayantī’s image as a fully empowered Indian woman who possessed wits, volition, and rationality. Mallarmé’s poetic license, in contrast, enabled him to go beyond received norms of nineteenth-century popular narratives pertaining to the Orient. First, he singled out elements in the Nalopākhyānam that directly resonated with his own poetic agenda. Second, he relinquished Summer’s pseudorealism, mitigated many Orientalist trappings, and switched to a more symbolic treatment of plot details. Finally, Mallarmé adopted a prose style reminiscent of classical Sanskrit, owing notably to his pursuit of condensation and syntactic ellipsis, his poetics of suggestion, and his tendency to multiply nominal appositives at the expense of finite verbs. In short, although Mallarmé’s stylistic idiosyncrasies are not easy to digest, by “Sanskritizing” his phraseology, so to speak, he effectively transmuted the Nalopākhyānam into a fresh narrative consisting of evocative, highly aestheticized, and rapidly shifting images. The third chapter examines how Segalen interpolated snippets of Chinese classics into his prose poem titled Stèles, while the fourth studies Segalen’s recasting of a small portion of the Tibetan classic Padma bka’ thang in his long poem Thibet. These last two chapters counteract Segalen’s image as a progressive modernist writer invested in East-West intercultural dialogue. By delving deeply into the way Segalen reworked his primary sources both in Stèles and in Thibet, I show that (1) Segalen’s Orientalism was not always his own, but often replicated and amplified that of previous translators; (2) Segalen was not a post-Mallarméan modernist, and his literary stance was not at all revolutionary; and (3) Segalen remained a cultural imperialist at heart who was keen to forge a pedantic, self-centered, and metaphoric Orient that had no room for concrete realities. More specifically, his authorial subjectivity either negated or superimposed itself on his Chinese sources in Stèles, while in Thibet, his ego went so far as to impersonate a valiant male French explorer embarking on the journey of conquering a female Tibet. Although the abstruse intertextuality underpinning Segalen’s Orientalism has thus far spared him from criticism directed at less recondite writers such as Pierre Loti, his appropriation of Chinese ideographs and Tibetan prosody belies a continuation of the Romantic poets’ fancy for the East. Although these foreign elements may indicate Segalen’s inclusiveness for some critics, in reality they function more as marketing gimmicks for readers barely able to verify their authenticity.Ph.D.Includes bibliographical referencesby Yunfei Ba
Quantitative analysis of the roles of IRM cell adhesion molecules in column formation in the fly brain
No full text博士論文 要旨Abstract/本文Full 以下に掲載：Development, Growth and Differentiation 65(1) pp.37-47 2023. Wiley Online Library. 共著者：Yunfei Lee, Miaoxing Wang, Kousuke Imamura, Makoto Sat
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