Results 91 to 100 of about 38,586 (315)
Relationship between DCT-II, DCT-VI, and DST-VII transforms [PDF]
2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013 Discrete Sine Transforms of type VII (DST-VII) have recently received considerable interest in video coding. In this paper, we show that there exists a direct connection between DST-VII and DCT-II transforms, allowing their joint computation for certain transform sizes. This connection also yields fast algorithms for constructing DCT-VI and DCT-VII.
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Advanced Science, EarlyView.Ovarian macrophage depletion reverses OHSS resistance in estrildid finches and exacerbates OHSS symptoms in rats. Activating macrophage GPR183 alleviates OHSS by reducing pro‐inflammatory factors, increasing immunomodulatory molecules, remodeling CD44/SDC4‐mediated communication, and restoring immune homeostasis.
Xiaofei Yan +11 more
wiley +1 more source
Image encryption using enhanced DCT transform for frequency domain applications [PDF]
MATEC Web of Conferencesimproving system performance and reliability. Key leaks and inadequate key strength are common issues with numerical global key models and public block cipher algorithms that use pseudo-random numbers.
Ganesh Bande +5 more
doaj +1 more source
Exploring DCT Implementations [PDF]
, 1998 The Discrete Cosine Transform (DCT) is used in the MPEG and JPEG compression standards. Thus, the DCT component has stringent timing requirements. The high performance which is required cannot be achieved by a sequential implementation of the algorithm ...
Aggarwal, Gaurav +3 more
core
Advanced Science, EarlyView.IGF2BP1‐mediated m6A stabilization sustains SMC1A expression, enabling cohesin‐associated chromatin regulation of Nestin in hepatocellular carcinoma. This work reveals an epitranscriptomic‐chromatin‐cytoskeletal regulatory axis linked to malignant phenotypes and identifies SMC1A as a biologically relevant vulnerability in HCC.
Zhenxiang Peng +7 more
wiley +1 more source
Xenogeneic Mitochondrial Transplantation Improves Selected Age‐Associated Phenotypes in Mice
Advanced Science, EarlyView.Yak‐derived xenogeneic mitochondrial transplantation improves selected age‐associated phenotypes in mice, enhances mitochondrial functional readouts, and engages host mitochondrial quality‐control pathways. Broad tissue biodistribution, increased ATP production and mtDNA copy number, reduced ROS levels and dysfunctional mitochondria, improved motility ...
Wenpeng Li +5 more
wiley +1 more source
Advanced Science, EarlyView.This study utilized alloy micro‐galvanic coupling design to regulate the release of essential elements, thereby programming immune responses and promoting regeneration. The sacrificial anodic process of Zn‐0.8Mg reduced Zn2+ release compared to the “large cathode‐small anode” coupling of Zn‐0.8Fe.
Chaoyang Sun +14 more
wiley +1 more source
An Efficient Lossless ROI Image Compression Using Wavelet-Based Modified Region Growing Algorithm
Journal of Intelligent Systems, 2018 Nowadays, medical imaging and telemedicine are increasingly being utilized on a huge scale. The expanding interest in storing and sending medical images brings a lack of adequate memory spaces and transmission bandwidth.
Sreenivasulu P., Varadarajan S.
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DCT/IDCT-based interpolation for channel estimation in OFDM systems(OFDM系统DCT/IDCT插值信道估计算法)
Zhejiang Daxue xuebao. Lixue ban, 2008 导频辅助信道估计是OFDM系统常用的信道估计算法，本文研究基于变换域的导频辅助信道估计算法.在DFT插值法的基础上，提出了基于离散余弦变换(DCT)的信道估计方法.仿真结果表明，该插值算法的MSE和SER性能优于DFT方法.与MMSE算法相比，该插值算法计算复杂度低，易于物理实现.
JINNing(金宁) +2 more
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Initial experience of DCTs [PDF]
British Dental Journal, 2020 Mehdizadeh, R. +5 more
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