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998 results on '"Li, C. L."'

20. Influence of body mass index on the clinicopathological features of 13,995 papillary thyroid tumors

Author

Li, C. L., Dionigi, G., Zhao, Y. S., Liang, N., and Sun, H.

Abstract

Purpose: This retrospective study aimed to assess the association between obesity, gender, and specific clinicopathological features in patients with papillary thyroid cancer (PTC) and whether diagnostic ultrasonography (US) is adversely affected by obesity in these patients. Materials and methods: This study retrospectively analyzed 13,995 adult patients with PTC from a single medical center in China. Data stratification was performed to assess the association of obesity with US features and aggressive clinicopathological features in different models according to the World Health Organization Body Mass Index (WHO-BMI) and Chinese BMI classification (CN‐BMI). The odds ratio (OR) of malignant US features and aggressive clinicopathological features was calculated from binary logistic regression models. Results: The BMI, obesity ratio, malignant US features, and aggressive pathological characteristics of males were significantly higher than those of females. After adjusting for confounding factors, the association of obesity with malignant US features and aggressive pathological characteristics was found to be sex-dependent. Next, obesity (WHO-BMI) was found to have an “interfering effect” on the US assessment of PTC (OR = 0.754, 95% CI 0.609–0.932, P= 0.009) in women. Among both sexes, obesity (WHO-BMI) increased the risk of tumor size (ORmale= 1.539 and ORfemale= 1.521) and multifocality (ORmale= 1.659 and ORfemale= 1.449). However, obesity did not increase the risk of capsular invasion or tumor staging in males. The above results are consistent with the CN-BMI. In addition, age was found to have an “interfering effect” on the US evaluation of malignant nodules in both sexes. Conclusion: The results of our study confirm that higher BMI is significantly associated with aggressive clinicopathological features of PTC. Gender differences were present with obesity ratios and aggressive clinicopathological features being significantly higher in men.

Published
2024
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40. Virtual Lanes for Air-Ground Integrated Transportation Systems: Evolution and Key Techniques

Author

Li, C-L, Wang, S, Yue, W-W, Mao, G-Q, and He, X-J

Subjects
Networking & Telecommunications
Abstract

Aiming to break through the development bottleneck of the current autonomous driving industry virtual lanes are proposed to provide an innovative technical solution for future autonomous driving scenarios integrating flying car transportation systems FCTS Virtual lanes develop synergistically with the evolution of autonomous driving stage i e from manned driving to fully intelligent driving and then to the proposed L6 air ground full domain autonomous driving which can finally achieve the air ground integrated transportation systems This paper introduces the application scenarios implementation methods and feasibility analysis of virtual lanes in each development stage by elaborating the state of the art technologies in autonomous driving digital twin internet of things IoT artificial intelligence AI and other fields It has a pioneering inspiration significance for the autonomous driving industry to clarify the overall development trend and key technology orientation in the future 2022 Chinese Institute of Electronics All rights reserved

Published
2022

46. Wavelength selection using diffuse reflectance spectra and machine learning algorithms for tissue differentiation in orthopedic surgery

Author

Li, C. L., Fisher, C. J., Komolibus, K., Grygoryev, K., Burke, R., and Stefan Andersson-Engels

Subjects
Tissue, Optical systems, Diffuse reflectance spectroscopy, Diffuse reflectance, Optical devices development, Genetic algorithms, Computed tomography, Wavelength selection
Abstract

DRS-based measurements of tissue types encountered in orthopedic surgery are utilized to establish a wavelength selection methodology using machine learning techniques, which enables rapid development of clinically translatable optical systems

Published
2022
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50. Structure-controlled valley splitting and anomalous valley Hall effect in Janus VSe2/VSeX (X = S , Te) heterojunctions.

Author

Li, C L, Wang, N B, Hu, G C, Yuan, X B, Ren, J F, and Zhao, X W

Subjects
*ANOMALOUS Hall effect, *HETEROJUNCTIONS, *VALLEYS, *SEMICONDUCTOR switches
Abstract

Ferrovalley materials possess spontaneous valley splitting and anomalous valley Hall effect (AVHE) characteristics, making this an ideal platform for valleytronic information devices. The efficient regulation of valley splitting and the anomalous Hall current is critical for the realization of information coding. In this work, to realize the regulation of valley properties, Janus VSe2/VSeX (X = S, Te) heterojunctions are investigated using first-principles calculations. Spontaneous valley splitting and the AVHE can be achieved in VSe2/VSeX. In addition, the asymmetrical structure, different stacking configurations of heterojunctions, and the intrinsic polarity of the Janus VSeX monolayer can regulate the band alignments, i.e. type-Ⅰ, -Ⅱ, and -Ⅲ band alignments can be realized, and they are accompanied with the switch between semiconductor and metal phases. Moreover, the structure-controlled valley states and AVHE are obtained. When altering the Janus VSeS and VSeTe, the K and K ′ valleys possess contrary characteristics: opposite spin signs and valley splitting occurred. Accordingly, we design a low-power-consumption switch to achieve multistate storage without external field regulation. The results can provide an alternative avenue for spintronics and valleytronics devices. [ABSTRACT FROM AUTHOR]

Published
2023
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