Search results for: Guang Deng

Items from 1 to 20 out of 105 results

article

Two-factor ANOVA of SSH and RNA-seq analysis reveal development-associated Pi-starvation genes in oilseed rape

Zhong-Wei Zhang, Ling-Yang Feng, Jian-Hui Wang, Yu-Fan Fu, more

Planta > 2019 > 250 > 4 > 1073-1088

Main conclusion The 5-leaf-stage rape seedlings were more insensitive to Pi starvation than that of the 3-leaf-stage plants, which may be attributed to the higher expression levels of ethylene signaling and sugar-metabolism genes in more mature seedlings. Abstract Traditional suppression subtractive hybridization (SSH) and RNA-Seq usually screen out thousands of differentially expressed genes. However,...

article

Classification of image distortion based on the generalized Benford’s law

Hussein Al-Bandawi, Guang Deng

Multimedia Tools and Applications > 2019 > 78 > 18 > 25611- 25628

Distortion classification is an important step in blind image quality assessment. In this paper, a new image distortion classification algorithm is presented. Classification is based on features extracted from the distribution of the first digit of transform coefficients of the image. The generalized Benford’s law is used to model the distribution. The discrete cosine transform with three different...

article

Various adaptations of meadow forage grasses in response to temperature changes on the Qinghai–Tibet Plateau, China

Chao Zhang, Da-Wei Zhang, Xing-Guang Deng, Zhi-Hui Tian, more

Plant Growth Regulation > 2019 > 88 > 2 > 181-193

Global warming is considered a pivotal environmental factor influencing the growth of meadow forage grasses and the balance of alpine meadow ecosystems, especially on the Qinghai–Tibet Plateau. The objective of this study was to evaluate the adaptability of introducing and restoring forage grass species on the Hongyuan prairie in response to temperature changes. Based on the analysis of photosynthetic...

article

Structure extraction of images using anisotropic diffusion with directional second neighbour derivative operator

Mukhalad Al-nasrawi, Guang Deng, Waseem Waheed

Multimedia Tools and Applications > 2019 > 78 > 5 > 6385-6407

The aim of structure extraction is to decompose an image into prominent structures and textures. In this paper, we present a new structure extraction method which has two main steps. First, high-frequency components due to the texture information in the original image are alleviated by a pre-smoothing filter. The result is then processed by a new anisotropic diffusion algorithm which uses a second...

article

Nitric oxide as a signaling molecule in brassinosteroid‐mediated virus resistance to Cucumber mosaic virus in Arabidopsis thaliana

Li‐Juan Zou, Xing‐Guang Deng, Li‐e Zhang, Tong Zhu, more

Physiologia Plantarum > 163 > 2 > 196 - 210

Brassinosteroids (BRs) are growth‐promoting plant hormones that play a crucial role in biotic stress responses. Here, we found that BR treatment increased nitric oxide (NO) accumulation, and a significant reduction of virus accumulation in Arabidopsis thaliana. However, the plants pre‐treated with NO scavenger [2‐(4‐carboxyphenyl)‐4,4,5,5‐tetramethyl‐imidazoline‐1‐1‐oxyl‐3‐oxide (PTIO)] or nitrate...

article

Fast Kernel Smoothing by a Low-Rank Approximation of the Kernel Toeplitz Matrix

Guang Deng, Jonathan H. Manton, Song Wang

Journal of Mathematical Imaging and Vision > 2018 > 60 > 8 > 1181-1195

Kernel smoothing methods, including the bilateral filter, are commonly used in data processing/modeling and edge-aware image smoothing. Due to their nonlinear nature, these filters require significant computational time. In this paper, we address this problem by studying a practical case in which the data to be processed are integers. The basic idea is to use eigendecomposition to approximate the...

article

Storage of C, N, and P affected by afforestation with Salix cupularis in an alpine semiarid desert ecosystem

Yu‐Fu Hu, Xiang‐Yang Shu, Jia He, Yu‐Lin Zhang, more

Land Degradation & Development > 29 > 1 > 188 - 198

Few systemic assessments have evaluated the success of these afforestation programs in alpine semiarid desert ecosystems in the Qinghai‐Tibet Plateau. In this study, we investigated the influences of three Salix cupularis plantation age classes (6, 18, and 34 years) on the carbon (C), nitrogen (N), and phosphorus (P) storages and stoichiometry of the soil–plant ecosystem. The consequences of S. cupularis...

article

Photocatalytic Cr(VI) reduction and organic-pollutant degradation in a stable 2D coordination polymer

Fu-Xue Wang, Xiao-Hong Yi, Chong-Chen Wang, Ji-Guang Deng

Chinese Journal of Catalysis > 2017 > 38 > 12 > 2141-2149

A new coordination polymer, Zn(bpy)L (BUC-21), (H₂L = cis-1,3-dibenzyl-2-imidazolidone-4,5-°dicarboxylic acid, bpy = 4,4′-bipyridine), has been synthesized under hydrothermal conditions, and characterized by single-crystal X-ray analysis, Fourier transform infrared spectroscopy, thermogravimetric analyses, CNH elemental analysis and UV-Vis diffuse reflectance spectroscopy. BUC-21 exhibited an excellent...

article

Edge-aware smoothing through adaptive interpolation

Mukhalad Al-nasrawi, Guang Deng, Ba Thai

Signal, Image and Video Processing > 2018 > 12 > 2 > 347-354

The goal of edge-aware filtering is to smooth out small-scale structures while preserving large object boundaries. A fundamental idea to design such filters is to avoid smoothing across strong edges. In this paper, we explore a new approach which iteratively adds the edge information back to a smoothed image. We study the smoothed image as the starting point of the iteration and the optimal stopping...

article

Gastric cancer‐derived exosomes promote peritoneal metastasis by destroying the mesothelial barrier

Guang Deng, Jinglei Qu, Ye Zhang, Xiaofang Che, more

FEBS Letters > 591 > 14 > 2167 - 2179

An intact mesothelium serves as a protective barrier to inhibit peritoneal carcinomatosis. Cancer‐derived exosomes can mediate directional tumor metastasis; however, little is known about whether gastric cancer‐derived exosomes will destroy the mesothelial barrier and promote peritoneal dissemination. Here, we demonstrate that gastric cancer‐derived exosomes facilitate peritoneal metastasis by causing...

article

Semi-guided bilateral filter

Ba Thai, Mukhalad Al-nasrawi, Guang Deng, Zhuo Su

IET Image Processing > 2017 > 11 > 7 > 512 - 521

The bilateral filter (BF) is a non-linear filter that spatially smooths images with awareness of large structures such as edges. The level of smoothness applied to a pixel is constrained by a photometric weight, which can be obtained from the same image to be filtered (in case of the original BF) or from a guided image (in case of the joint/cross BF). In this study, the authors propose a new filter...

article

Changes in soil organic carbon and its active fractions in different desertification stages of alpine-cold grassland in the eastern Qinghai–Tibet Plateau

Yu-Fu Hu, Shuang-Long Jiang, Shu Yuan, Liang-Ji Deng, more

Environmental Earth Sciences > 2017 > 76 > 9 > 1-15

In recent years, the desertification of alpine-cold grasslands has become increasingly serious in the Qinghai–Tibet Plateau in China, but it has not received the same amount of attention as has desertification in (semi)arid areas. Little is thus known about the change in soil organic carbon (SOC) during alpine-cold grassland desertification. To quantify the impacts of desertification on vegetation,...

article

High-order generalized screen propagator migration based on particle swarm optimization

Run He, Jia-Chun You, Bin Liu, Yan-Chun Wang, more

Applied Geophysics > 2017 > 14 > 1 > 64-72

Various migration methods have been proposed to image high-angle geological structures and media with strong lateral velocity variations; however, the problems of low precision and high computational cost remain unresolved. To describe the seismic wave propagation in media with lateral velocity variations and to image high-angle structures, we propose the generalized screen propagator based on particle...

article

Celastrol, produced by Tripterygium wilfordii Hook F. enhances defense response in cucumber seedlings against diverse environmental stresses

Li-jun Zhu, Xing-guang Deng, Li-juan Zou, Peng-xu Li, more

Journal of Plant Biology > 2017 > 60 > 1 > 82-92

Celastrol is an active triterpenoid compound isolated from Tripterygium wilfordii Hook F.. Many reports have highlighted that celastrol is an effective, safe and desirable approach to the treatment of cancers. However, their biological function during environmental stresses in plants is rarely reported. In the present study, the effects of celastrol on the tolerance against high light (HL), polyethylene...

article

Guided Wavelet Shrinkage for Edge-Aware Smoothing

Guang Deng

IEEE Transactions on Image Processing > 2017 > 26 > 2 > 900 - 914

Edge-aware smoothing has been extensively studied due to its wide range of applications in computer vision and graphics. Most published works have been focused on formulating the smoothing problem in the spatial domain. In this paper, we propose a new edge-aware smoothing framework called guided wavelet shrinkage (GWS), which is formulated in the wavelet domain as a maximum a posterior estimation...

article

A partial Hadamard transform approach to the design of cancelable fingerprint templates containing binary biometric representations

Song Wang, Guang Deng, Jiankun Hu

Pattern Recognition > 2017 > 61 > C > 447-458

As an important biometric template protection technique, cancelable biometrics provides enhanced security for biometric-based authentication. Representing biometric information in binary form is useful in biometric template protection because it offers simplicity in feature representation and provides benefits in matching and storage. Therefore, it is no surprise that cancelable biometrics often exploits...

article

The Role of Photoreceptors in Response to Cucumber Mosaic Virus in Arabidopsis thaliana

Xue Zhou, Tong Zhu, Li-Sha Zhu, Shi-Shuai Luo, more

Journal of Plant Growth Regulation > 2017 > 36 > 2 > 257-270

It is well known that light is involved in the plant immunity system. However, the mechanisms by which photoreceptors interfere with plant resistance to viruses remain largely unclear. In this study, we explored the defense response systems in different photoreceptor-defective mutants after cucumber mosaic virus (CMV) inoculation. We monitored the physiological and molecular changes of these mutants...

article

Microstructure and Properties of Cu Coating Fabricated onto Diamond-Cu Substrate by Low-Temperature HVOF Process

Min Liu, Kun Yang, Chun-ming Deng, Chang-guang Deng, more

Journal of Thermal Spray Technology > 2016 > 25 > 8 > 1516-1525

Diamond-Cu composites have been considered to be the next generation of electronic packing materials. One of the key stumbles for such an application is the joining problem between diamond-Cu composites and other materials due to the poor wettability of the diamond particles in the composites. In order to overcome this hurdle, pure Cu powder was thermally sprayed onto diamond-Cu substrate by low-temperature...

chapter

Constrained Smoothness Cost in Markov Random Field Based Stereo Matching

Ba Thai, Mukhalad Al-nasrawi, Guang Deng, Robert Ross, more

2016 International Conference on Digital Image Computing: Techniques and Applications (DICTA) > 1 - 5

2016 International Conference on Digital Image Computing: Techniques and Applications (DICTA)

Stereo matching is the process of finding disparity map between a pair of stereo images. Markov Random Field (MRF) model has been used in stereo matching algorithms in which the goal is to minimize total data, smoothness and occlusion cost. Recent MRF based stereo matching algorithms assign the same smoothness cost to adjacent pixels which is not effective at objects boundaries. In this paper, we...

article

A fast white balance algorithm based on pixel greyness

Ba Thai, Guang Deng, Robert Ross

Signal, Image and Video Processing > 2017 > 11 > 3 > 525-532

The goal of automatic white balance (AWB) is to maintain colour constancy of an image by removing colour cast caused by un-canonical illuminant. In this paper, we address two limitations associated with a class of AWB algorithms and propose a technique to estimate the illuminant which takes into consideration the internal illumination and all pixels of the image. The estimate is calculated by a weighted...

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INFONA - science communication portal

Search results for: Guang Deng

Two-factor ANOVA of SSH and RNA-seq analysis reveal development-associated Pi-starvation genes in oilseed rape

Classification of image distortion based on the generalized Benford’s law

Various adaptations of meadow forage grasses in response to temperature changes on the Qinghai–Tibet Plateau, China

Structure extraction of images using anisotropic diffusion with directional second neighbour derivative operator

Nitric oxide as a signaling molecule in brassinosteroid‐mediated virus resistance to Cucumber mosaic virus in Arabidopsis thaliana

Fast Kernel Smoothing by a Low-Rank Approximation of the Kernel Toeplitz Matrix

Storage of C, N, and P affected by afforestation with Salix cupularis in an alpine semiarid desert ecosystem

Photocatalytic Cr(VI) reduction and organic-pollutant degradation in a stable 2D coordination polymer

Edge-aware smoothing through adaptive interpolation

Gastric cancer‐derived exosomes promote peritoneal metastasis by destroying the mesothelial barrier

Semi-guided bilateral filter

Changes in soil organic carbon and its active fractions in different desertification stages of alpine-cold grassland in the eastern Qinghai–Tibet Plateau

High-order generalized screen propagator migration based on particle swarm optimization

Celastrol, produced by Tripterygium wilfordii Hook F. enhances defense response in cucumber seedlings against diverse environmental stresses

Guided Wavelet Shrinkage for Edge-Aware Smoothing

A partial Hadamard transform approach to the design of cancelable fingerprint templates containing binary biometric representations

The Role of Photoreceptors in Response to Cucumber Mosaic Virus in Arabidopsis thaliana

Microstructure and Properties of Cu Coating Fabricated onto Diamond-Cu Substrate by Low-Temperature HVOF Process

Constrained Smoothness Cost in Markov Random Field Based Stereo Matching

A fast white balance algorithm based on pixel greyness

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