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Journal of Integrative Agriculture 2018年第12期17卷 2683-2693页

作者： ZHANG Kun CHEN Bai-hong HAO Yan YANG rui wang Yu-an Horticulture College Gansu Agricultural UniversityLanzhou 730070P.R.China Institute of Fruit and Floriculture Research Gansu Academy of Agricultural SciencesLanzhou 730070P.R.China

Heat stress occurs frequently in energy-saving sunlight greenhouses(ESSG) at the late growth stage. Three-year delayed cultivation(DC) of the Red Globe cultivar of Vitis vinifera L. was used to clarify the physiological mechanisms of short-term heat stress on PSII and subsequent recovery from heat stress. By November, the photosynthetic function had declined and the fall in transpiration rate(E) with heating time increased the possibility of heat damage. In July, the most obvious increase was in the relative variable fluorescence at J point at 40°C, and in November it changed to K point. The 5 min of heat treatment resulted in a significant increase of the relative variable fluorescence at 0.3 ms(W), and after 10 min of heat treatment, the number of reactive centres per excited cross section(RC/CS), probability that a trapped exciton moves an electron into the electron transport chain beyond Q–(at t=0)(Ψ) and quantum yield of electron transport at t=0(φ) decreased significantly(P<0.05), suggesting that the reaction centre, donor and acceptor side of photosystem II(PSII) were all significantly inhibited(P<0.05) and that the thermal stability of the photosynthetic mechanism was reduced. The inhibition of energy fluxes for senescent leaves in November was earlier and more pronounced than that for healthy leaves, which did not recover from heat stress of more than 15 min after 2 h recovery at room temperature.

关键词： short-term heat stress leaf senescence chlorophyll a fluorescence arid desert region delayed cultivation

Effect of slag composition on steel cleanliness in interstitial-free steel

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Journal of Iron and Steel Research International 2017年第6期24卷 579-585页

作者： rui wang Yan-ping Bao Yi-hong Li Tai-quan Li Di Chen State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing School of Materials Science and Engineering Taiyuan University of Science and Technology Handan Iron & Steel Group Co. Ltd.of HBIS

Ladle slag affects steel cleanliness at the end of the Ruhrstahl-Hereaeus （RH） and holding process. The relationship between composition of ladle slag, total oxygen （TO） and inclusions was investigated using X ray fluorescence （XRF）, infrared absorption, and SEM＋ EDS methods. The results indicate that TO in steel at the end of RH increases linearly with increasing FeO content in slag. TO is lower when wcao/ wAl2O3 （C/A）=I. 5--2.0 than that of C/A= 1.0--1.4 under an approximate content of FeO. During the holding process, irregular Al2O3 inclusions are newly generated due to slag reoxidation. Additionally, Al2O3 Ti, O inclusions are newly generated in the steel when the content of FeO is higher. By combining experimental and thermodynamic calculation results, it is determined that the slag has a good melting property within the zone of C/A= 1.2 1.8 and adsorption capacity of Al2O3 when the content of SiO2 in slag is controlled at 4~ 6%. The increase in the C/A ratio and the decrease of FeO content in slag can slow down the reoxidation rate：

关键词： IF steelLadle slagReoxidationInclusionHolding process

Strong and tough chitin hydrogel constructed by dehydration and rehydration strategy

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Nano Research 2024年第9期17卷 8192-8199页

作者： rui-rui Liu Li-Bo Mao Shu-hong Yu Division of Nanomaterials and Chemistry Hefei National Research Center for Physical Sciences at the MicroscaleDepartment of ChemistryInstitute of Biomimetic Materials and ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

As a renewable,biocompatible,biodegradable soft material,chitin hydrogels have better advantages in stability,antibacterial activity,antifouling,cost,immunogenicity,and so on than most polymer ***,compared with other widely used polymer hydrogels with high strength and toughness,the practical applications of chitin-based hydrogels have been limited by their weak mechanical properties,such as cartilage repair and meniscus ***,we present the design and fabrication of chitin hydrogels with excellent mechanical strength and toughness by a dehydration and rehydration *** sequential dehydration and rehydration processes,the crystalline domains in the chitin hydrogels can be properly *** optimized crystallinity,the elastic modulus of the chitin hydrogels exceeds all previously reported values,and the fracture toughness is even comparable to some synthetic polymer hydrogels,while maintaining a high-water-content of about 80 wt.%.At the same water content,the mechanical properties of the chitin hydrogels are positively correlated with the hydrogel crystallinity,which proves that the change of mechanical properties of hydrogels is not simply dependent on weight *** hydrogels can be further strengthened by incorporating other biopolymers that are intrinsically weak,which makes the hydrogels promising for applications in fields such as cartilage repair and meniscus ***,the hydrogels enable loading and release of water-soluble and poorly water-soluble *** highly extendable strengthening and toughening strategy of chitin and chitin-based biopolymer hydrogels paves the way for their widely applications.

关键词： chitin hydrogel crystallinity rehydration chemical transformation strong and tough

Modeling of Liquid Level and Bubble Behavior in Vacuum Chamber of RH Process

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Journal of Iron and Steel Research International 2016年第4期23卷 305-313页

作者： Yi-hong LI Yan-ping BAO rui wang Min wang Qing-xue HUANG Yu-gui LI Shanxi Provincal Key Laboratory of Metallurgical Device Design Theory and Technology School of Materials Science and EngineeringTaiyuan University of Science and Technology State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing

In the Ruhrstahl-Heraeus （RH） refining process, liquid steel flow pattern in a ladle is controlled by the fluid flow behavior in the vacuum chamber. Potassium chloride solution and NaOH solution saturated with CO2 were respectively used as a tracer to investigate the liquid and gas flow behaviors in the vacuum chamber. Principal compo nent and comparative analysis were made to show the factors controlling mixing and circulation flow rate. The liquid level and bubble behavior in the vacuum chamber greatly affect fluid flow in RH process. Experiments were performed to investigate the effects of liquid steel level, gas flow rate, bubble residence time, and gas injection mode on mixing, decarburization, and void fraction. The results indicate that the mixing process can be divided into three regions： the flow rate affected zone, the concentration gradient-affected zone, and their combination. The liquid steel level in the vacuum chamber of 300 mm is a critical point in the decarburization transition. For liquid level lower than 300 mm, liquid steel circulation controls decarburization, while for liquid level higher than 300mm, bubble behavior is the main controlling factor. During the RH process, it is recommended to use the concentrated bubble injection mode for low gas flow rates and the uniform bubble injection mode for high gas flow rates.

关键词： RH process liquid level vacuum chamber bubble behavior bubble residence time gas injection mode

Numerical study on catalytic combustion of methane with ozone using Pd-exchanged zeolite X

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Science China Chemistry 2015年第5期58卷 899-904页

作者： rui Wu Rong Chen hong wang Zhibin wang Xun Zhu Qiang Liao Kwansan Hui Kwunnam Hui Key Laboratory of Low-Grade Energy Utilization Technologies and Systems Chongqing University Institute of Engineering Thermophysics Chongqing University School of Energy and Power Engineering University of Shanghai for Science and Technology Department of Mechanical Convergence Engineering Hanyang University School of Materials Science and Engineering Pusan National University

A steady-state ID macro-homogeneous model is developed to illustrate the combustion process of methane with ozone in the reactor composed of Pd-exchanged zeolite X. The model is validated by comparing the predicted results with the measured data. The methane conversion increases with decreasing the inlet methane concentration and gas space velocity and increasing the inlet ozone concentration and temperature. As the reactor length reduces, the methane conversion varies little if the reactor is too long but decreases when the reactor is too short. Therefore, the reactor should he properly designed to balance costs and the methane-conversion efficiency.

关键词： catalytic combustion methane conversion porous medium ozone

R2R3-type Lo MYB21 affects jasmonate-regulated development and dehiscence of anthers in lily(Lilium oriental hybrids)

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Horticultural Plant Journal 2024年第1期10卷 239-251页

作者： Zheng Tong Tingting Dong Qiuhua Li rui wang Junna He Bo hong Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Sciences&Hainan Institute for Tropical Agricultural ResourcesHaikouHainan 571101China Beijing Key Laboratory of Development and Quality Control of Ornamental Crops Department of Ornamental HorticultureChina Agricultural UniversityBeijing 100193China Beijing Garden Expo Management Center Beijing 100072China

Lilies are widely cultivated for cut flowers,but their large anthers carry a considerable amount of colored pollen that is dispersed *** the molecular mechanism of anther development and dehiscence could help solve this ***21,encoding a putative R2R3v-myb avian myeloblastosis viral oncogene homolog(MYB)transcription factor,was identified from oriental lilies(Lilium‘Siberia’).Real-time quantitative PCR analysis showed that LoMYB21 was mainly expressed in the anther,filament and stigma and had high expression during the late stages of lily anther ***21 had transactivation activity and was located in the nucleus through yeast one-hybrid assays and transient expression in Nicotiana *** of LoMYB21 by virus-induced gene silencing(VIGS)in Lilium‘Siberia’led to anther indehiscence and reduced the expression of genes related to Jasmonate acid(JA)biosynthesis and signal *** of LoMYB21 in DEX::LoMYB21 transgenic Arabidopsis caused procumbent inflorescences that became infertile,accompanied by higher expression of JA biosynthetic and signaling *** results demonstrated that JA content and signaling were abnormal in silenced lily and transgenic LoMYB21 Arabidopsis,which affected anther *** study indicated that LoMYB21 could regulate lily anther dehiscence through JA biosynthesis and signaling during the late stages of anther development.

关键词： Lilium LoMYB21 Anther dehiscence Jasmonate acid

Catalytic mechanism of manganese ions and visible light on chalcopyrite bioleaching in the presence of Acidithiobacillus ferrooxidans

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Chinese Journal of Chemical Engineering 2022年第1期35卷 457-465页

作者： Chunxiao Zhao Baojun Yang rui Liao Maoxin hong Shichao Yu Jun wang Guanzhou Qiu Key Laboratory of Biohydrometallurgy of Ministry of Education School of Minerals Processing&BioengineeringCentral South UniversityChangsha 410083China

The bioleaching of chalcopyrite is low cost and environmentally friendly,but the leaching rate is *** explore the mechanism of chalcopyrite bioleaching and improve its leaching rate,the effect and mechanism of manganese ions(Mn^(2+))and visible light on chalcopyrite mediated by Acidithiobacillus ferrooxidans(***)were *** experiments showed that when both Mn^(2+)and visible light were present,the copper extraction was 14.38%higher than that of the control system(without Mn^(2+)and visible light).Moreover,visible light and Mn^(2+)promoted the growth of *** electron microscopy(SEM)and energy dispersive spectrometer(EDS)analysis revealed that Mn^(2+)promoted the formation of extracellular polymeric substance(EPS)on the surface of chalcopyrite,changed the morphology of ***,enhanced the adsorption of bacteria on chalcopyrite surface with light illumination,and thus promoted the bioleaching of ***–vis absorbance spectra indicated that Mn^(2+)promoted the response of chalcopyrite to visible light and enhanced the catalytic effect of visible light on chalcopyrite *** on X-ray photoelectron spectroscopy(XPS),the relevant sulfur speciation of chalcopyrite before and after bioleaching were analyzed and the results revealed that visible light and Mn^(2+)promoted chalcopyrite bioleaching by reducing the formation of passivation layer(S_(n)^(2-)/S0).Investigation into electrochemical results further indicated that Mn^(2+)and visible light improved the electrochemical activity of chalcopyrite,thus increasing the bioleaching rate.

关键词： Acidithiobacillus ferrooxidans Mn^(2+) Electrochemistry Catalysis Dissolution

Improving the Initial Coulombic Efficiency of Carbonaceous Materials for Li/Na‑Ion Batteries:Origins,Solutions,and Perspectives

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Electrochemical Energy Reviews 2023年第1期6卷 651-679页

作者： Zheng Tang Siyu Zhou Yuancheng Huang hong wang rui Zhang Qi wang Dan Sun Yougen Tang Haiyan wang Hunan Provincial Key Laboratory of Chemical Power Sources College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083HunanChina

Carbonaceous materials for lithium(Li)/sodium(Na)-ion batteries have attracted significant attention because of their widespread availability,renewable nature,and low *** the past decades,although great efforts have been devoted to developing high-performance carbonaceous materials with high capacity,long life span,and excellent rate capability,the low initial Coulombic efficiency(ICE)of high-capacity carbonaceous materials seriously limits their practical *** methods have been successfully exploited,and a revolutionary impact has been achieved through the utilization of different *** carbonaceous materials possess different ion storage mechanisms,which means that the initial capacity loss may ***,there has rarely been a special review about the origins of and progress in the ICE for carbonaceous materials from the angle of the crystal ***,in this review,the structural differences between and ion storage mechanisms of various carbonaceous materials are first ***,we deduce the correlative factors of low ICE and thereafter summarize the proposed strategies to address these ***,some challenges,perspectives,and future directions on the ICE of carbonaceous materials are *** review will provide deep insights into the challenges of improving the ICE of carbonaceous anodes for high-energy Li/Na-ion batteries,which will greatly contribute to their commercialization process.

关键词： Lithium/sodium-ion batteries Initial Coulombic efficiency Carbonaceous materials Energy storage

HYDRODYNAMIC ANALYSIS OF SUCK-IN PULSED JET IN WELL DRILLING

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Journal of Hydrodynamics 2011年第1期23卷 34-41页

作者： wang rui-he DU Yu-kun NI hong-jian MA Lin College of Petroleum Engineering China University of Petroleum Dongying 257061 China

The development of new drilling methods is important for the exploration and production of oil *** pulsed jet is a drilling technology of high *** article proposes a new concept of suck-in pulsed jet with self-excited oscillation,by which a full use of the hydraulic power can be made in the annular space.A hydrodynamic analysis of suck-in pulsed jet with self-excited oscillation is carried out by numerical simulations and rock-breaking *** is shown that with the jet,a negative pressure zone will be formed in the oscillation cavity to ensure automatic sucking of enough annular fluids and the formation of an efficient pulsed *** rock-breaking and pressure testing results have verified the reliability of the numerical *** research provides a basis for the development of the pulsed jet drilling technology.

关键词： drilling methods numerical simulation pulsed jet rock-breaking suck-in

Advances in phase-sensitive optical time-domain reflectometry

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Opto-Electronic Advances 2022年第3期5卷 25-52,I0001页

作者： Shuaiqi Liu Feihong Yu rui hong Weijie Xu Liyang Shao Feng wang Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518000China Key Laboratory of Intelligent Optical Sensing and Manipulation Ministry of EducationNanjing UniversityNanjing 210023China

Phase-sensitive optical time-domain reflectometry(Φ-OTDR)has attracted numerous attention due to its superior performance in detecting the weak perturbations along the *** on the ultra-sensitivity of light phase to the tiny deformation of optical fiber,Φ-OTDR has been treated as a powerful technique with a wide range of *** is fundamental to extract the phase of scattering light wave accurately and the methods include coherent detection,I/Q demodulation,3 by 3 coupler,dual probe pulses,and so ***,researchers have also made great efforts to improve the performance ofΦ-*** frequency response range,the measurement accuracy,the sensing distance,the spatial resolution,and the accuracy of event discrimination,all have been enhanced by various ***,lots of researches on the applications in various kinds of fields have been carried out,where certain modifications and techniques have been ***,Φ-OTDR remains as a booming technique in both researches and applications.

关键词： optical fiber sensors Ф-OTDR phase demodulation application research