Search results for: Bo Peng

Items from 1 to 20 out of 713 results

article

Mild Ring Contractions of Cyclobutanols to Cyclopropyl Ketones via Hypervalent Iodine Oxidation

Yan Sun, Xin Huang, Xiaojin Li, Fan Luo, more

Advanced Synthesis & Catalysis > 360 > 6 > 1082 - 1087

An iodine‐mediated oxidative ring contraction of cyclobutanols has been developed. The reaction allows the synthesis of a wide range of aryl cyclopropyl ketones under mild and eco‐friendly conditions. A variety of functional groups including aromatic or alkyl halides, ethers, esters, ketones, alkenes, and even aldehydes are nicely tolerated in the reaction. This is in contrast with traditional synthetic...

article

Multiple Dolomitization and Fluid Flow Events in the Precambrian Dengying Formation of Sichuan Basin, Southwestern China

Bo PENG, Zongxing LI, Guorong LI, Chenglin LIU, more

Acta Geologica Sinica ‐ English Edition > 92 > 1 > 311 - 332

The Precambrian Dengying Formation is a set of large‐scale, extensively dolomitized, carbonate reservoirs occurring within the Sichuan Basin. Petrographic and geochemical studies reveal dolomitization was a direct result of precipitation by chemically distinct fluids occurring at different times and at different intensities. Based on this evidence, dolomitization and multiple fluid flow events are...

article

Glutamate synthase MoGlt1‐mediated glutamate homeostasis is important for autophagy, virulence and conidiation in the rice blast fungus

Wei Zhou, Wei Shi, Xiao‐Wen Xu, Zhi‐Gang Li, more

Molecular Plant Pathology > 19 > 3 > 564 - 578

Glutamate homeostasis plays a vital role in central nitrogen metabolism and coordinates several key metabolic functions. However, its function in fungal pathogenesis and development has not been investigated in detail. In this study, we identified and characterized a glutamate synthase gene MoGLT1 in the rice blast fungus Magnaporthe oryzae that was important to glutamate homeostasis. MoGLT1 was constitutively...

article

Image Forensics Based on Planar Contact Constraints of 3D Objects

Bo Peng, Wei Wang, Jing Dong, Tieniu Tan

IEEE Transactions on Information Forensics and Security > 2018 > 13 > 2 > 377 - 392

Standing objects on planar surfaces are common to see in images, e.g., people on the ground. For most objects to stay stable on the plane, planar contact is a necessary requirement. However, 2D image splicing usually disregards this physical constraint of 3D world, leading to a potential artifact of object not attached to the plane. This paper is the first attempt to use the contact constraint of...

article

Geochemistry of major and trace elements in sediments from inlets of the Xiangjiang and Yuanjiang River to Dongting Lake, China

Xiaohong Fang, Bo Peng, Kun Zhang, Dengzhi Zeng, more

Environmental Earth Sciences > 2018 > 77 > 2 > 1-16

Concentrations of major and trace elements in sediments from the Xiangjiang and Yuanjiang River inlets to Dongting Lake (China) were analyzed using XRF and ICP-MS methods, respectively. The results show that sediments from both rivers show comparable major element compositions and a similar distribution of high strength field elements (Zr, Hf, Nb, Ta, Th and U), large ion lithophile elements (Ba,...

article

Dendritic and Core–Shell–Corona Mesoporous Sister Nanospheres from Polymer–Surfactant–Silica Self‐Entanglement

Kun Zhang, Tai‐Qun Yang, Bing‐Qian Shan, Peng‐Cheng Liu, more

Chemistry – A European Journal > 24 > 2 > 478 - 486

Mesoporous nanospheres are highly regarded for their applications in nanomedicine, optical devices, batteries, nanofiltration, and heterogeneous catalysis. In the last field, the dendritic morphology, which favors molecular diffusion, is a very important morphology known for silica, but not yet for carbon. A one‐pot, easy, and scalable co‐sol–gel route by using the triphasic resol–surfactant–silica...

article

Region-based image segmentation evaluation via perceptual pooling strategies

Bo Peng, Macmillan Simfukwe, Tianrui Li

Machine Vision and Applications > 2018 > 29 > 3 > 477-488

Image segmentation is an essential step for many computer vision tasks. Evaluating the quality of image segmentations becomes indispensable for choosing an appropriate output of the image segmentation algorithms. To quantitatively evaluate the segmentation quality, various evaluation measures have been proposed to produce a quality map, and a spatial pooling algorithm is followed to combine the quality...

article

Danshen extract circumvents drug resistance and represses cell growth in human oral cancer cells

Cheng-Yu Yang, Cheng-Chih Hsieh, Chih-Kung Lin, Chun-Shu Lin, more

BMC Complementary and Alternative Medicine > 2017 > 17 > 1 > 1-8

Background Danshen is a common traditional Chinese medicine used to treat neoplastic and chronic inflammatory diseases in China. However, the effects of Danshen on human oral cancer cells remain relatively unknown. This study investigated the antiproliferative effects of a Danshen extract on human oral cancer SAS, SCC25, OEC-M1, and KB drug-resistant cell lines and elucidated the possible underlying...

article

An analysis on intersectional collaboration on non-communicable chronic disease prevention and control in China: a cross-sectional survey on main officials of community health service institutions

Xing-ming Li, Alon Rasooly, Bo Peng, JianWang, more

BMC Health Services Research > 2017 > 17 > 1 > 1-10

Background Our study aimed to design a tool of evaluating intersectional collaboration on Non-communicable Chronic Disease (NCD) prevention and control, and further to understand the current status of intersectional collaboration in community health service institutions of China. Methods We surveyed 444 main officials of community health service institutions in Beijing, Tianjin, Hubei and Ningxia...

article

Non-central zone 3D sound field reproduction for multichannel system

Song Wang, Cong Zhang, Bo Peng, Heng Wang, more

Wuhan University Journal of Natural Sciences > 2017 > 22 > 6 > 498-502

The 22.2 multichannel system and its simplified system with 10-channel and 8-channel have been proposed, which brings people 3D listening experience. But these systems could only accurately reproduce sound field at a central listening point which is called sweetspot. In order to solve this problem, this paper proposes a non-central zone sound field reproduction method PVMDZ(particle velocity matching...

article

Sophora subprosrate polysaccharide inhibited cytokine/chemokine secretion via suppression of histone acetylation modification and NF-κb activation in PCV2 infected swine alveolar macrophage

Jian Yang, Hong-Lian Tan, Li-Yuan Gu, Man-Ling Song, more

International Journal of Biological Macromolecules > 2017 > 104 > Part A > 900-908

In the present study, effect of Sophora subprosrate polysaccharide on PCV2 infection-induced inflammation and histone acetylation modification in swine alveolar macrophage 3D4/2 cells was described for the first time. The relationship between histone acetylation modifications and inflammation response was investigated. The results showed that PCV2 infection induced inflammation by promoting the secretion...

article

Hydrogen-Rich Saline Ameliorates Hepatic Ischemia-Reperfusion Injury Through Regulation of Endoplasmic Reticulum Stress and Apoptosis

Zhiyuan Lu, Yanzhu Lin, Bo Peng, Zhen Bao, more

Digestive Diseases and Sciences > 2017 > 62 > 12 > 3479-3486

Objective To evaluate the effect of hydrogen-rich saline (HS) on hepatic ischemia-reperfusion (I/R) injury. Methods Forty rats were randomly allocated into five groups: one sham group (control group), one group treated with 20 min of ischemia and normal saline (NS; I/R1 + NS group), one group treated with 20 min of ischemia and HS (I/R1 + HS group), one group treated with 60 min of ischemia and...

chapter

Correlation between optical return loss and transmission fringe amplitude in high-index-contrast waveguides

Chi Xiong, Yves Martin, Marwan Khater, Jason S. Orcutt, more

2017 Conference on Lasers and Electro-Optics (CLEO) > 1 - 2

2017 Conference on Lasers and Electro-Optics (CLEO)

We present a phenomenological model correlating optical return loss and amplitude of fringes in transmission spectrum due to distributed backscattering in high-index-contrast waveguides. The model is validated experimentally using four different waveguide cross sections.

article

An advanced analytical neuro–space mapping technique with sensitivity analysis for transistor modeling

Lin Zhu, Kaihua Liu, Wenyuan Liu, Qi‐jun Zhang, more

International Journal of Numerical Modelling: Electronic Networks, Devices... > 30 > 6 > n/a - n/a

This paper presents an advanced analytical neuro–space mapping (neuro‐SM) technique for accurate and efficient modeling of transistor devices. This is an improvement over the existing neuro‐SM, which aims to use neural networks to map a given approximate device model towards an accurate model. The proposed neuro‐SM retains the ability of the existing neuro‐SM in modifying the voltage relationship...

article

Characterization of textural, rheological, thermal, microstructural, and water mobility in wheat flour dough and bread affected by trehalose

Bo Peng, Youqian Li, Shiyong Ding, Jun Yang

Food Chemistry > 2017 > 233 > Complete > 369-377

The study aims to elucidate the effects of trehalose on the mechanical, thermal, and rheological properties of wheat flour dough and water distribution in bread. Texture profile analysis, DSC, farinograph, extensograph, and frequency sweep were applied in dough. The results from SEM revealed that the gluten film became less notable with the presence of trehalose. The kinetics of staling process, low-field...

article

Comprehensive Genomic Characterization of Upper Tract Urothelial Carcinoma

Tyler J. Moss, Yuan Qi, Liu Xi, Bo Peng, more

European Urology > 2017 > 72 > 4 > 641-649

Upper urinary tract urothelial cancer (UTUC) may have unique etiologic and genomic factors compared to bladder cancer.To characterize the genomic landscape of UTUC and provide insights into its biology using comprehensive integrated genomic analyses.We collected 31 untreated snap-frozen UTUC samples from two institutions and carried out whole-exome sequencing (WES) of DNA, RNA sequencing (RNAseq),...

article

Effects of isopropyl alcohol and acetic acid on surface roughness of Z-cut quartz etched by ammonium bifluoride solution

Zhaoyun Zhang, Wei Su, Bin Tang, Wei Xu, more

IET Micro & Nano Letters > 2017 > 12 > 10 > 781 - 783

Quartz has been widely used in modern microelectromechanical systems (MEMS) industry, and wet etching is one of the primary techniques used for its manufacturation. There are many reported literatures focused on the study of etched profiles or etching rate of quartz, but few on its surface quality. Inspired by the surface quality improved by using additives in the silicon wet etching process, the...

article

Fast Real-Time Causal Linewise Progressive Hyperspectral Anomaly Detection via Cholesky Decomposition

Lifu Zhang, Bo Peng, Feizhou Zhang, Lizhe Wang, more

IEEE Journal of Selected Topics in Applied Earth Observations and Remote... > 2017 > 10 > 10 > 4614 - 4629

Real-time processing of anomaly detection has become one of the most important issues in hyperspectral remote sensing. Due to the fact that most widely used hyperspectral imaging spectrometers work in a pushbroom fashion, it is necessary to process the incoming data line in a causal linewise progressive manner with no future data involved. In this study, we proposed several processes to well improve...

article

Evaluation of Segmentation Quality via Adaptive Composition of Reference Segmentations

Bo Peng, Lei Zhang, Xuanqin Mou, Ming-Hsuan Yang

IEEE Transactions on Pattern Analysis and Machine Intelligence > 2017 > 39 > 10 > 1929 - 1941

Evaluating image segmentation quality is a critical step for generating desirable segmented output and comparing performance of algorithms, among others. However, automatic evaluation of segmented results is inherently challenging since image segmentation is an ill-posed problem. This paper presents a framework to evaluate segmentation quality using multiple labeled segmentations which are considered...

article

Intracellular Delivery of Functional Native Antibodies under Hypoxic Conditions by Using a Biodegradable Silica Nanoquencher

Peiyan Yuan, Hailong Zhang, Linghui Qian, Xin Mao, more

Angewandte Chemie International Edition > 56 > 41 > 12481 - 12485

Antibodies are important biopharmaceuticals, but almost all existing antibody‐based drugs are limited to targeting antigens located at the cell exterior because of the inability of antibodies to enter the cell interior. Available methods for intracellular delivery of antibodies have major shortcomings. Herein, we report an approach to encapsulate native antibodies in a biodegradable silica nanoquencher...

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INFONA - science communication portal

Search results for: Bo Peng

Mild Ring Contractions of Cyclobutanols to Cyclopropyl Ketones via Hypervalent Iodine Oxidation

Multiple Dolomitization and Fluid Flow Events in the Precambrian Dengying Formation of Sichuan Basin, Southwestern China

Glutamate synthase MoGlt1‐mediated glutamate homeostasis is important for autophagy, virulence and conidiation in the rice blast fungus

Image Forensics Based on Planar Contact Constraints of 3D Objects

Geochemistry of major and trace elements in sediments from inlets of the Xiangjiang and Yuanjiang River to Dongting Lake, China

Dendritic and Core–Shell–Corona Mesoporous Sister Nanospheres from Polymer–Surfactant–Silica Self‐Entanglement

Region-based image segmentation evaluation via perceptual pooling strategies

Danshen extract circumvents drug resistance and represses cell growth in human oral cancer cells

An analysis on intersectional collaboration on non-communicable chronic disease prevention and control in China: a cross-sectional survey on main officials of community health service institutions

Non-central zone 3D sound field reproduction for multichannel system

Sophora subprosrate polysaccharide inhibited cytokine/chemokine secretion via suppression of histone acetylation modification and NF-κb activation in PCV2 infected swine alveolar macrophage

Hydrogen-Rich Saline Ameliorates Hepatic Ischemia-Reperfusion Injury Through Regulation of Endoplasmic Reticulum Stress and Apoptosis

Correlation between optical return loss and transmission fringe amplitude in high-index-contrast waveguides

An advanced analytical neuro–space mapping technique with sensitivity analysis for transistor modeling

Characterization of textural, rheological, thermal, microstructural, and water mobility in wheat flour dough and bread affected by trehalose

Comprehensive Genomic Characterization of Upper Tract Urothelial Carcinoma

Effects of isopropyl alcohol and acetic acid on surface roughness of Z-cut quartz etched by ammonium bifluoride solution

Fast Real-Time Causal Linewise Progressive Hyperspectral Anomaly Detection via Cholesky Decomposition

Evaluation of Segmentation Quality via Adaptive Composition of Reference Segmentations

Intracellular Delivery of Functional Native Antibodies under Hypoxic Conditions by Using a Biodegradable Silica Nanoquencher

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