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| 1 | Optimization of dewatering schemes for a deep foundation pit near the Yangtze River, China显示文摘A deep foundation pit constructed for an underground transportation hub was excavated near the Yangtze River. Among the strata, there are two confined aquifers, between which lies an aquiclude that is partially missing. To guarantee the safety of pit excavation, the piezometric head of the upper confined aquifer, where the pit bottom is located, should be 1 m below the pit bottom, while that of the lower confined aquifer should be dewatered down to a safe water level to avoid uplift problem. The Yangtze River levee is notably close to the pit, and its deformation caused by dewatering should be controlled. A pumping test was performed to obtain the hydraulic conductivity of the upper confined aquifer. The average value of the hydraulic conductivity obtained from analytical calculation is 20.45 m/d, which is larger than the values from numerical simulation(horizontal hydraulic conductivity K_H = 16 m/d and vertical hydraulic conductivity K_V = S m/d). The difference between K_H and K_V indicates the anisotropy of the aquifer. Two dewatering schemes were designed for the construction and simulated by the numerical models for comparison purposes. The results show that though the first scheme could meet the dewatering requirements, the largest accumulated settlement and differential settlement would be94.64 mm and 3.3‰, respectively, greatly exceeding the limited values. Meanwhile, the second scheme,in which the bottoms of the waterproof curtains in ramp B and the river side of ramp A are installed at a deeper elevation of-28 m above sea level, and 27 recharge wells are set along the levee, can control the deformation of the levee significantly. | Yang You Changhong Yan Baotian Xu Shi Liu Canhui Che | 2018 | Journal of Rock Mechanics and Geotechnical Engineering2018，10，3： | 3 |
| 2 | Microstructures and properties of silver-based contact material fabricated by hot extrusion of internal oxidized Ag–Sn–Sb alloy powders显示文摘 | Canhui Xu Danqing Yi Chunping Wu Huiqun Liu Weizhou Li | 2012 | Materials Science & Engineering A2012，，： | 1 |
| 3 | Microstructures and properties of silver-based contact material fabricated by hot extrusion of internal oxidized Ag–Sn–Sb alloy powders显示文摘 | Canhui Xu Danqing Yi Chunping Wu Huiqun Liu Weizhou Li | 2012 | Materials Science & Engineering A2012，，： | 1 |
| 4 | Comparison of physicochemical properties of starches from seed and rhizome of lotus显示文摘 | Jianmin Man Jinwen Cai Canhui Cai Bin Xu Huyin Huai Cunxu Wei | 2012 | Carbohydrate Polymers2012，，2： | 1 |
| 5 | Aerogels from quaternary ammonium-functionalized cellulose nanofibers for rapid removal of Cr(VI) from water显示文摘 | Xu He Long Cheng Yaru Wang Jiangqi Zhao Wei Zhang Canhui Lu | 2014 | Carbohydrate Polymers2014，，： | 1 |
| 6 | Microstructures and properties of silver-based contact material fabricated by hot extrusion of internal oxidized Ag-Sn-Sb alloy powders显示文摘 | Xu Canhui Yi Danqing Wu Chunping | 2012 | Materials Science and Engineering A2012，538，： | 1 |
| 7 | Phase separation in plants:New insights into cellular compartmentalization显示文摘A fundamental challenge for cells is how to coordinate various biochemical reactions in space and time. To achieve spatiotemporal control, cells have developed organelles that are surrounded by lipid bilayer membranes. Further, membraneless compartmentalization, a process induced by dynamic physical association of biomolecules through phase transition offers another efficient mechanism for intracellular organization. While our understanding of phase separation was predominantly dependent on yeast and animal models, recent findings have provided compelling evidence for emerging roles of phase separation in plants. In this review, we first provide an overview of the current knowledge of phase separation, including its definition, biophysical principles, molecular features and regulatory mechanisms. Then we summarize plant-specific phase separation phenomena and describe their functions in plant biological processes in great detail. Moreover, we propose that phase separation is an evolutionarily conserved and efficient mechanism for cellular compartmentalization which allows for distinct metabolic processes and signaling pathways, and is especially beneficial for the sessile lifestyle of plants to quickly and efficiently respond to the changing environment. | Xiumei Xu Canhui Zheng Dandan Lu Chun‐Peng Song Lixin Zhang | 2021 | Journal of Integrative Plant Biology2021，63，11： | 1 |
| 8 | Application of highlight removal and multivariate image analysis to color measurement of flotation bubble images显示文摘 | YANG Chunhua XU Canhui GUI Weihua | 2009 | International Journal of Image Systems and Technology2009，19，4： | 1 |
| 9 | Strengthening poly(2-hydroxyethyl methacrylate) hydrogels using biochars and hydrophobic aggregations显示文摘As the first version of synthetic hydrogel,poly(2-hydroxyethyl methacrylate)hydrogels have found broad applications.However,their poor mechanical performances have been longstanding hurdles for practical deployments.Herein,we report on strengthening the poly(2-hydroxyethyl methacrylate)hydro-gels with biochar nanoparticles and hydrophobic aggregations,which are induced by solvent exchange and reinforced by freeze-thaw.Both the vast anchoring points on the multifunc-tional surfaces of the biochar nanoparticles and the aggregates formed between poly(2-hydroxyethyl methacrylate)chains engender strong and dissipative physical crosslinks.The result-ing hydrogels exhibit marked mechanical properties,encom-passing high stretchability~7,high fracture toughness~1360 J m−2,high elastic modulus~180 kPa,low friction coefficient~0.2,self-recovery,and non-swellability.Furthermore,we demonstrate the versatility of the proposed strategy by using water/ionic liquid binary solvent as the sol-vent system,Laponite as the nano-reinforcement,and dryanneal as the hydrophobic aggregation enhancer to synthesize mechanically robust hydrogels.Poly(2-hydroxyethyl methacry-late)hydrogels of superior mechanical properties are expected to enable previously inaccessible applications in biomedicine and engineering. | Ping Zhang Ziyi Xu Zhiying Wu Ping Xu Canhui Yang | 2022 | International Journal of Smart and Nano Materials2022，13，4： | 1 |
| 10 | Controllable Ni/NiO interface engineering on N-doped carbon spheres for boosted alkaline water-to-hydrogen conversion by urea electrolysis显示文摘Interface engineering has gradually attracted substantial research interest in constructing active bifunctional catalysts toward urea electrolysis.The fundamental understanding of the crystallinity transition of the components on both sides of the interface is extremely significant for realizing controllable construction of catalysts through interface engineering,but it still remains a challenge.Herein,the Ni/NiO heterogenous nanoparticles are successfully fabricated on the porous N-doped carbon spheres by a facile hydrothermal and subsequent pyrolysis strategy.And for the first time we show the experimental observation that the Ni/NiO interface can be fine-tuned via simply tailoring the heating rate during pyrolysis process,in which the crystalline/amorphous or crystalline/crystalline Ni/NiO heterostructure is deliberately constructed on the porous N-doped carbon spheres(named as CA-Ni/NiO@NCS or CC-Ni/NiO@NCS,respectively).By taking advantage of the unique porous architecture and the synergistic effect between crystalline Ni and amorphous NiO,the well-designed CA-Ni/NiO@NCS displays more remarkable urea oxidation reaction(UOR)and hydrogen evolution reaction(HER)activity than its crystalline/crystalline counterpart of CC-Ni/NiO@NCS.Particularly,the whole assembled two-electrode electrolytic cell using the elaborate CANi/NiO@NCS both as the anode and cathode can realize the current density of 10 mA·cm^(−2)at a super low voltage of 1.475 V(264 mV less than that of pure water electrolysis),as well as remarkable prolonged stability over 63 h.Besides,the H_(2)evolution driven by an AA battery and a commercial solar cell is also studied to enlighten practical applications for the future. | Xiujuan Xu Xianbiao Hou Puyu Du Canhui Zhang Shucong Zhang Huanlei Wang Arafat Toghan Minghua Huang | 2022 | Nano Research2022，15，8： | 0 |
| 11 | The DELLA-ABI4-HY5 module integrates light and gibberellin signals to regulate hypocotyl elongation显示文摘Plant growth is coordinately controlled by various environmental and hormonal signals,of which light and gibberellin(GA)signals are two critical factors with opposite effects on hypocotyl elongation.Although interactions between the light and GA signaling pathways have been studied extensively,the detailed regulatory mechanism of their direct crosstalk in hypocotyl elongation remains to be fully clarified.Previously,we reported that ABA INSENSITIVE 4(ABI4)controls hypocotyl elongation through its regulation of cellelongation-related genes,but whether it is also involved in GA signaling to promote hypocotyl elongation is unknown.In this study,we showthat promotion of hypocotyl elongation by GA is dependent on ABI4 activation.DELLAs interact directly with ABI4 and inhibit its DNA-binding activity.In turn,ABI4 combined with ELONGATED HYPOCOTYL 5(HY5),a key positive factor in light signaling,feedback regulates the expression of the GA2ox GA catabolism genes and thus modulates GA levels.Taken together,our results suggest that the DELLA-ABI4-HY5 module may serve as a molecular link that integrates GA and light signals to control hypocotyl elongation. | Haibo Xiong Dandan Lu Zhiyuan Li Jianghao Wu Xin Ning Weijun Lin Zechen Bai Canhui Zheng Yang Sun Wei Chi Lixin Zhang Xiumei Xu | 2023 | Plant Communications2023，4，5： | 0 |
| 12 | Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones(Cannabis sativa L.)显示文摘We investigated the effect of iron oxide nanoparticles(Fe_(3)O_(4)NPs,~17 nm in size)on the phenotype and metabolite changes in hemp(Cannabis sativa L.),an annual crop distributed worldwide.Hemp clones were grown in hydroponic cultures with Fe_(3)O_(4)NPs(50,100,200,or 500 mg/L)for four weeks.TEM and ICP-MS were used to determine Fe_(3)O_(4)NPs uptake and translocation.LC-MS-based metabolomics was employed to explore the deep insight into the effect of Fe_(3)O_(4)NPs on hemp plants.The results revealed that plant growth enhanced gradually with increasing concentrations of given NPs up to 200 mg/L,which improved the fresh weight and dry weight by 36.13%and 74.68%,respectively,compared to the control.Even at a high dose(500 mg/L),Fe_(3)O_(4)NPs promoted plant growth,including increased biomass and tissue length.NPs significantly increased the iron and chlorophyll content in plant tissues Increased catalase activity and reduced hydrogen peroxide content in hemp leaves suggested that the Fe_(3)O_(4)NPs activated the defense system.TEM showed that NPs were abundantly attached to the cell wall and dispersed throughout the root cells.Metabolomics revealed that Fe_(3)O_(4)NPs induced metabolic reprogramming in hemp leaves,including the up-regulation of carbohydrates and organic acids,and down-regulation of antioxidants,especially tetrahydrocannabinol(THC).The significantly up-regulated metabolites,including peonidin and 2-hydroxycinnamic acid,could be involved in photosynthesis in hemp plants.These results demonstrate the potential of Fe_(3)O_(4)NPs for promoting hemp growth and decreasing the THC content at low doses. | Canhui Deng Qing Tang Zemao Yang Zhigang Dai Chaohua Cheng Ying Xu Xiaojun Chen Xiaoyu Zhang Jianguang Su | 2022 | Frontiers of Environmental Science & Engineering2022，16，10： | 0 |
| 13 | Closure technique for the hybrid girder cable stayed bridge of Edong Bridge显示文摘Based on Edong Yangtze River Bridge, which is the second longest hybrid girder cable stayed bridge with 926 m long main span, the influencing factors and crucial techniques of the main span closure method for long span hybrid girder cable stayed bridge are studied. After theoretical analysis, numerical evaluation and practical test, the loading assistant closure method is employed in Edong Yangtze River Bridge. The loading assistant closure method, with better thermal adaptability and less influence on bridge line and the forced status, can meet the requirements of the unstressed state control method. Based on the mentioned advantages, the loading assistant closure method is applicable to long span hybrid girder cable stayed bridges. The conclusion can provide a reference for the further design of the similar bridges. | Liu Minghu Tan Hao Xu GuoPing Zhao Canhui | 2012 | Engineering Sciences2012，10，4： | 0 |
| 14 | HSCA-Net: A Hybrid Spatial-Channel Attention Network in Multiscale Feature Pyramid for Document Layout Analysis显示文摘Document images often contain various page components and complex logical structures,which make document layout analysis task challenging.For most deep learning-based document layout analysis methods,convolutional neural networks(CNNs)are adopted as the feature extraction networks.In this paper,a hybrid spatial-channel attention network(HSCA-Net)is proposed to improve feature extraction capability by introducing attention mechanism to explore more salient properties within document pages.The HSCA-Net consists of spatial attention module(SAM),channel attention module(CAM),and designed lateral attention connection.CAM adaptively adjusts channel feature responses by emphasizing selective information,which depends on the contribution of the features of each channel.SAM guides CNNs to focus on the informative contents and capture global context information among page objects.The lateral attention connection incorporates SAM and CAM into multiscale feature pyramid network,and thus retains original feature information.The effectiveness and adaptability of HSCA-Net are evaluated through multiple experiments on publicly available datasets such as PubLayNet,ICDAR-POD,and Article Regions.Experimental results demonstrate that HSCA-Net achieves state-of-the-art performance on document layout analysis task. | Honghong Zhang Canhui Xu Cao Shi Henyue Bi Yuteng Li Sami Mian | 2023 | Journal of Artificial Intelligence and Technology2023，3，1： | 0 |
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