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288 results on '"Liu, Haikun"'

27. 36‐4: Analysis of Halo Improvement Factors of Mini‐LED Backlit Display Based on Visual Sensitivity.

Author

He, Nailong, Zhang, Yuning, Hu, Chenhao, Wang, Wei, Liu, Joan, Zhuang, Jiaqing, and Liu, Haikun

Subjects
HALOS (Meteorology), LED displays, VISUAL perception, INDEPENDENT variables
Abstract

According to the characteristics of the halo phenomenon of Mini‐LED partition backlit LCD display, we measure the luminance and distribution of the halo by using the measurement method established before, and further analyze the influencing factors. Based on the hardware characteristics of this type of display, we extract three factors that affect the intensity of the halo, which are the luminance of the display area, the native contrast of the display panel and the number or size of the backlight partition. We designed and carried out the halo visual perception evaluation experiment according to the influencing factors of the halo, and further established the halo sensitivity model, which took the width and luminance of the halo as independent variables, and the predicted value of the halo was highly correlated with the evaluation value (R 2 >0.90). Finally, we analyzed the influence trend of various factors on the intensity of the halo through the established model, and proposed a hardware‐based halo improvement scheme. At the same time, the model also helped to establish the evaluation standard of the halo. [ABSTRACT FROM AUTHOR]

Published
2024
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40. Climate warming could free cold‐adapted trees from C‐conservative allocation strategy of storage over growth.

Author

Zhou, Quan, Shi, Hang, He, Rui, Liu, Haikun, Zhu, Wenting, Wu, Shengjun, Zhang, Quanfa, and Dang, Haishan

Subjects
GLOBAL warming, CARBON cycle, PHOTOSYNTHETIC rates, LEAF area, HIGH temperatures, WOOD preservatives
Abstract

Carbon allocation has been fundamental for long‐lived trees to survive cold stress at their upper elevation range limit. Although carbon allocation between non‐structural carbohydrate (NSC) storage and structural growth is well‐documented, it still remains unclear how ongoing climate warming influences these processes, particularly whether these two processes will shift in parallel or respond divergently to warming. Using a combination of an in situ downward‐transplant warming experiment and an ex situ chamber warming treatment, we investigated how subalpine fir trees at their upper elevation limit coordinated carbon allocation priority among different sinks (e.g., NSC storage and structural growth) at whole‐tree level in response to elevated temperature. We found that transplanted individuals from the upper elevation limit to lower elevations generally induced an increase in specific leaf area, but there was no detected evidence of warming effect on leaf‐level saturated photosynthetic rates. Additionally, our results challenged the expectation that climate warming will accelerate structural carbon accumulation while maintaining NSC constant. Instead, individuals favored allocating available carbon to NSC storage over structural growth after 1 year of warming, despite the amplification in total biomass encouraged by both in situ and ex situ experimental warming. Unexpectedly, continued warming drove a regime shift in carbon allocation priority, which was manifested in the increase of NSC storage in synchrony to structural growth enhancement. These findings imply that climate warming would release trees at their cold edge from C‐conservative allocation strategy of storage over structural growth. Thus, understanding the strategical regulation of the carbon allocation priority and the distinctive function of carbon sink components is of great implication for predicting tree fate in the future climate warming. [ABSTRACT FROM AUTHOR]

Published
2024
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44. MorphStream: Scalable Processing of Transactions over Streams on Multicores

Author

Mao, Yancan, Zhao, Jianjun, Yang, Zhonghao, Zhang, Shuhao, Liu, Haikun, and Markl, Volker

Subjects
Computer Science - Databases, Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

Transactional Stream Processing Engines (TSPEs) form the backbone of modern stream applications handling shared mutable states. Yet, the full potential of these systems, specifically in exploiting parallelism and implementing dynamic scheduling strategies, is largely unexplored. We present MorphStream, a TSPE designed to optimize parallelism and performance for transactional stream processing on multicores. Through a unique three-stage execution paradigm (i.e., planning, scheduling, and execution), MorphStream enables dynamic scheduling and parallel processing in TSPEs. Our experiment showcased MorphStream outperforms current TSPEs across various scenarios and offers support for windowed state transactions and non-deterministic state access, demonstrating its potential for broad applicability.

Published
2023

46. Glioblastoma epigenome profiling identifies SOX10 as a master regulator of molecular tumour subtype

Author

Wu, Yonghe, Fletcher, Michael, Gu, Zuguang, Wang, Qi, Costa, Barbara, Bertoni, Anna, Man, Ka-Hou, Schlotter, Magdalena, Felsberg, Jörg, Mangei, Jasmin, Barbus, Martje, Gaupel, Ann-Christin, Wang, Wei, Weiss, Tobias, Eils, Roland, Weller, Michael, Liu, Haikun, Reifenberger, Guido, Korshunov, Andrey, Angel, Peter, Lichter, Peter, Herrmann, Carl, and Radlwimmer, Bernhard

Published
2020
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