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6821
Loading dynamics of cold atoms into a hollow-core photonic crystal fiber
Published 2021“…We also study the noise sources that cause heating and a loss of atoms during the process. Our result could be used to design and optimize the loading process of cold atoms into a hollow-core fiber for cold atom experiments.…”
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Journal Article -
6822
Nature in virtual reality improves mood and reduces stress : evidence from young adults and senior citizens
Published 2021“…Consistently, the senior citizen sample reported improved positive affect due to enhanced nature connectedness after the virtual nature walk. Our findings unveil the underlying mechanism of how virtual nature may improve psychological well-being and demonstrated how virtual nature can be used as an intervention to promote mental health.…”
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Journal Article -
6823
Sig2GRN : a software tool linking signaling pathway with gene regulatory network for dynamic simulation
Published 2018“…Then a Boolean model and a thermodynamics-based model are employed to predict the downstream changes in gene expression based on the simulated dynamics of transcription factors in signaling pathways. Results: Our empirical case studies show that the simulation of Sig2GRN can predict changes in gene expression patterns induced by DNA damage signals and drug treatments. …”
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Journal Article -
6824
Objects of Collaboration: Roles and Sequences of Objects in Spanning Knowledge Group Boundaries in Design
Published 2024“…We conducted a two-year ethnography within a turbomachinery design company to understand how professional engineering designers span knowledge group boundaries to advance their designs and design processes. Our findings identify three roles of objects of collaboration: routinizing cross-boundary interaction, translating information across boundaries, and motivating joint negotiation or discovery. …”
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6825
Query lower bounds for log-concave sampling
Published 2024“…Here denotes the condition number of the target distribution. Our proofs rely upon (1) a multiscale construction inspired by work on the Kakeya conjecture in geometric measure theory, and (2) a novel reduction that demonstrates that block Krylov algorithms are optimal for this problem, as well as connections to lower bound techniques based on Wishart matrices developed in the matrix-vector query literature.…”
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6826
Enhanced Li adsorption and diffusion in single-walled silicon nanotubes : an ab initio study
Published 2014“…We calculate Li insertion characteristics in SWSiNTs and compare them with the respective ones in carbon nanotubes (CNTs) and other silicon nanostructures. From our calculations, SWSiNTs show higher reactivity toward the adsorption of Li adatoms than CNTs and Si nanoclusters. …”
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Journal Article -
6827
Design of nanostructured hybrid materials based on carbon and metal oxides for Li ion batteries
Published 2013“…This feature article briefly summarizes our recent research progress on nanostructured hybrids of carbonaceous materials (e.g., amorphous carbon, reduced graphene oxide, and CNT) and metal oxides (e.g., CoO, Fe2O3, V2O5, etc.) in terms of designed synthesis chemistry, understanding the structure-process relationship and development of new types of electrodes.…”
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Journal Article -
6828
Conditional conservatism and debt versus equity financing
Published 2019“…In addition, we find that the positive effect of conservatism on the choice of equity issuance (versus debt issuance) is accentuated when the information asymmetry between the firm and its shareholders is more severe. Overall, our results suggest that conservatism reduces information asymmetry more between firms and shareholders than between firms and debtholders.…”
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Journal Article -
6829
Biosocial risk factors for academic dishonesty : testing a new mediation model in young adults
Published 2020“…Self-control and sensation seeking, but not fearlessness, mediated this relationship in females. To our knowledge, this is the first study to examine a biological risk factor for academic dishonesty. …”
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6830
Lasso environment model combination for robust speech recognition
Published 2013“…We propose to estimate the weights by using Lasso (least absolute shrinkage and selection operator) which imposes an L1 regularization term in the weight estimation problem to shrink some weights to exactly zero. Our study shows that Lasso usually shrinks to zero the weights of those mean supervectors not relevant to the test environment. …”
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Conference Paper -
6831
Bulk α-alumina embedded tapered fiber as Q-switcher in an erbiumdoped fiber laser
Published 2024“…This work reveals a substantial improvement over previously reported Al2O3-SA works with a recorded pulse energy of 150.32 nJ and an estimated damage threshold of beyond 6.75 GW cm−2 incident intensity. Our findings suggest that α-Al2O3-SA has enormous potential as a next generation light-absorbing material for high-energy photonic devices.…”
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6832
A statistical characteristics preserving watermarking scheme for time series databases
Published 2024“…Compared with the existing methods, our method achieves superior robustness and preserves constant statistical properties better.…”
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Journal Article -
6833
High energy and average power femtosecond laser for driving mid-infrared optical parametric amplifiers
Published 2013“…We have developed the first (to our knowledge) femtosecond Tm-fiber-laser-pumped Ho:YAG room-temperature chirped pulse amplifier system delivering scalable multimillijoule, multikilohertz pulses with a bandwidth exceeding 12 nm and average power of 15 W. …”
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Journal Article -
6834
Board financial experience and efficiency-based earnings management in pre- and post-international financial reporting standards
Published 2024“…Using DEA as an innovative adaptation in the accrual-based earnings management model, we aim to provide an accurate measure of earnings management. The results of our panel estimated generalized least square (EGLS) regression models, which account for heteroskedasticity and auto-correlation problems, indicate that the proportion of board of directors with financial and/or accounting experiences reduces earnings management pre-IFRS. …”
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6835
A generalized stereotypical trust model
Published 2013“…Experimental results confirm that our proposed model can more accurately measure the trustworthiness of sellers in simulated e-marketplaces where buyers have limited experience with sellers.…”
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Conference Paper -
6836
Discriminative feature extraction for speech recognition using continuous output codes
Published 2013“…Then, the output coding transformation formulated via a set of linear SVMs projects the sequences of high dimensional vectors into a tractable low-dimensional feature space where the resultant features are well-separated continuous output codes for the subsequent multi-class classification problem. Our experimental results on the TIMIT corpus show that the proposed features achieve 10.5% ASR error rate reduction over the conventional spectral features.…”
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Journal Article -
6837
Borocarbonitride, (BN)x(C)1-x, nanosheet-reinforced polymer nanocomposites for high mechanical performance
Published 2020“…These results are rationalized by recourse to detailed structural characterization, which shows a substantial enhancement in the degree of crystallinity in PVA upon BCN addition, and improved interfacial adhesion between the nanofiller and the polymer matrix via strong intermolecular interactions. Overall, our results show that it is possible to engineer polymer matrix nanocomposites with exceptional mechanical and thermal properties via the addition of a small amount of BCN.…”
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6838
DDA based grouting prediction and linkage between fracture aperture distribution and grouting characteristics
Published 2021“…The observed agreement can be treated as an indirect verification of the robustness of our proposed grouting module. As anticipated, the grouting characteristics are significantly affected by the distribution of fracture apertures and connectivity among fractures around an injection hole, which are controlled by the distribution parameters. …”
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Journal Article -
6839
Prescriptive analytics models for vessel inspection planning in maritime transportation
Published 2024“…A case study using data from the Hong Kong port demonstrates that the estimate-then-optimize models surpass the predict-then-optimize approach, offering solutions closer to the optimal policy. Furthermore, our improved model outperforms existing methods, proving more effective in practical applications.…”
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Journal Article -
6840
Genetic algorithm based deep learning model adaptation for improvising the motor imagery classification
Published 2024“…Results show that the proposed GA-based fine-tuning approach statistically improved the average classification accuracy of the baseline model from 84.46% to 87.29%. More interestingly, our approach shows significant improvement in cases where the performance of the baseline model is poor after fine-tuning using other approaches. …”
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