Yu‐Hui Wu

South China Institute Of Environmental Sciences

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Zhong‐Ning Chen

Chinese Academy of Sciences

Li-Yi Zhang

Fudan University Shanghai Cancer Center

Jun Ni

Dalian University of Technology

Xu Zhang

Gansu Agricultural University

Lin‐Xi Shi

Fujian Institute of Research on the Structure of Matter

Vigor Yang

Georgia Institute of Technology

Yuesuo Yang

Jilin University

Hui‐Min Wen

Zhejiang University of Technology

Ying Lü

Hunan Agricultural University

Nan Qiu

Scripps Research Institute

Cooperative Institutions

Chinese Academy of Sciences

Jilin University

Jiangxi University of Science and Technology

Fujian Institute of Research on the Structure of Matter

University of Chinese Academy of Sciences

Zhejiang University

Xi'an Jiaotong University

China University of Petroleum, East China

Changchun University of Science and Technology

Central South University

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Applications of Optimal Stochastic Control Designs to a Ground-Based Tracking System

American Control Conference (1989)

Yu‐Hui Wu

The use of linear-quadratic stochastic control designs for a ground-based tracking system is investigated. The design approach is motivated by the facts that: (i) the power spectral density of the atmospheric turbulence-induced tilt is known, and can be accurately modeled; and (ii) the angular anisoplanatism effect can be expressed in terms of its temporal correlation. The former generates a stochastic dynamic model that best describes the atmospheric turbulence-induced tilt, and the latter introduces a future state or a delay state depending upon the problem formulation. It is demonstrated that how a design philosophy, taking into account the above available information in its control design, can lead to a closed-loop system with a better tracking performance. For a simple case study, the analysis shows that with the proposed control design, the system could track a much weaker target (has at least 2.5 times less brightness) as compared to the system using the classical control design.

Tracking (education)

Stochastic control

10.23919/acc.1989.4790440

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MCM-41 immobilized 12-silicotungstic acid mesoporous materials: Structural and catalytic properties for esterification of levulinic acid and oleic acid

Journal of the Taiwan Institute of Chemical Engineers (2016)

Ya Chen Xiaoli Zhang Maomao Dong Yu‐Hui Wu Guangping Zheng

Silicotungstic acid

Levulinic acid

Keggin structure

MCM-41

10.1016/j.jtice.2015.12.005

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Citations (50)

Vapor‐ and Mechanical‐Grinding‐Triggered Color and Luminescence Switches for Bis(σ‐fluorophenylacetylide) Platinum(II) Complexes

Chemistry - A European Journal (2011)

Jun Ni Xu Zhang Yu‐Hui Wu Li‐Yi Zhang Zhong‐Ning Chen

Abstract Square‐planar bis(σ‐fluorophenylacetylide) platinum(II) complexes [Pt(Me 3 SiCCbpyCC‐SiMe 3 )(CCC 6 H 4 F) 2 ] (CCC 6 H 4 F‐2 for 2 , CCC 6 H 4 F‐3 for 3 , and CCC 6 H 4 F‐4 for 4 ; Me 3 SiCCbpyCCSiMe 3 =5,5′‐bis(trimethylsilylethynyl)‐2,2′‐bipyridine) were prepared and were characterized by spectroscopic and luminescence studies, and X‐ray crystallography. The color and luminescence of crystalline complex 3 is specifically sensitive to CHCl 3 vapor to afford 140–180 nm of luminescence vapochromic redshift, which is useful for specific detection of CHCl 3 vapor. Complex 4 displays selective luminescence vapochromic properties to CH 2 Cl 2 and CHCl 3 vapors with a luminescence vapochromic shift response of ca. 150–200 nm. Interestingly, complexes 2 – 4 exhibit reversible, and naked‐eye perceivable, mechanical stimuli‐responsive color and luminescence changes. When solid species 2 – 4 are crushed gently or ground, the crystalline state is converted to an amorphous phase. Meanwhile, bright yellow‐orange luminescence in the crystalline species is converted to dark red under UV light irradiation with 100–160 nm of mechanochromic shift response. A vapochromic or mechanochromic cycle was monitored by dynamic variations in emission spectra and X‐ray diffraction (XRD) patterns. The halohydrocarbon vapor‐ or mechanical‐grinding‐triggered color and luminescence switches are most likely correlated to a shorted intermolecular Pt–Pt distance as that revealed in vapochromic species 4⋅ 0.5 CH 2 Cl 2 by X‐ray crystallography, thus leading to an increased contribution from intermolecular Pt–Pt interaction as demonstrated by DTF computational studies.

10.1002/chem.201002752

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CCDC 766485: Experimental Crystal Structure Determination

The Cambridge Structural Database (2010)

Jun Ni Yu‐Hui Wu Xu Zhang Bin Li Li-Yi Zhang

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/cctqlbf

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CCDC 780460: Experimental Crystal Structure Determination

The Cambridge Structural Database (2012)

Jun Ni Xu Zhang Nan Qiu Yu‐Hui Wu Li-Yi Zhang

10.5517/ccv6449

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Study of Sulfidated Nano-Zero-Valent Iron for the Simultaneous Stabilization of Arsenic and Cadmium: Mechanisms and Implications

JianXiong Xie H. X. Wei Mengqiang Sun Ling Huang Jie Zhong

Download This Paper Open PDF in Browser Add Paper to My Library Share: Permalink Using these links will ensure access to this page indefinitely Copy URL Copy DOI

Zerovalent iron

Zero (linguistics)

10.2139/ssrn.4752221

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Selective propylene epoxidation in liquid phase using highly dispersed Nb catalysts incorporated in mesoporous silicates

Chinese Journal of Chemical Engineering (2018)

Wenjuan Yan Yu‐Hui Wu Xiang Feng Chaohe Yang Xin Jin

Propylene oxide

Propylene carbonate

10.1016/j.cjche.2018.03.001

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Deciphering the Synergistic Influence of Bacterial Proliferation and EPS Secretion on Soil Water Dynamics

Research Square (Research Square) (2024)

Qiandan Wang Shengtao Li Ying Lü Min Shi Yu‐Hui Wu

Abstract Bio-clogging is critical to the efficiency of soil aquifer treatment. Herein, utilized a percolation recharge device to investigate dynamic changes in biofilm and the corresponding response changes of three typical hydraulic properties of media within the percolation column. The results revealed that the biofilm exhibited a five-stage growth morphology: bacterial stage, colony stage, biofilm with filamentous EPS stage, biofilm with mesh EPS stage, and dense biofilm stage. The hydraulic conductivity exhibited nonuniform decay across five stages: initial fluctuation period, swiftly declining period, accelerated declining period, gently decreasing period, and equilibrium stabilizing period. Both bacteria and EPS contribute to the attenuation of the infiltration properties. Due to its hydrophilic nature, EPS played a more prominent role in storing and dispersing water. As such, significant changes in water holding capacity and material transport mechanism occurred at EPS secretion onset. From 0-18h, bacterial colonisation enhanced water-holding capacity somewhat, whereas the hydraulic dispersion coefficient gradually rose. After 18 hours, a substantial amount of extracellular polymers were produced, considerably enhanced water-holding capacity and altered medium migration from convection to dispersion.

Dynamics

Bacterial growth

10.21203/rs.3.rs-3977223/v1

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Theoretical studies on the spectroscopic properties and the substituent effects of pyridyl triazole Os(II) complexes

Science in China Series B Chemistry (2009)

Yu‐Hui Wu Xin Zhou Hong‐Xing Zhang

Triazole

Dichloromethane

1,2,4-Triazole

10.1007/s11426-009-0071-6

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Visible-Light-Driven Photocatalysts of Metal–Organic Frameworks Derived from Multi-Carboxylic Acid and Imidazole-Based Spacer

Crystal Growth & Design (2012)

Li−Li Wen Jinbo Zhao Kangle Lv Yu‐Hui Wu Kejian Deng

Five new metal–organic frameworks [M(btec)0.5(bimb)]n (1) (M = Co (1), Ni (2), Cu (3), Zn (4)) and [Cd(btec)0.5(bimb)0.5]n (5), were obtained by reactions of the conjugated 1,2,4,5-benzenetetracarboxylic acid (H4btec) and 4,4′-bis(1-imidazolyl)biphenyl (bimb) with corresponding metal salts under hydrothermal conditions, respectively. MOFs 1-5 show different structures and topologies: compounds 1 and 4 are isomorphic, which possess typical PtS 3D nets; compound 2, 3 and 5 exhibit 2D layer structure, NbO 3D network and (4,6)-connected 3D binodal topology, respectively. Notably, compounds 1, 2, and 5 represent the rare example of MOFs-based visible-light-driven photocatalysts and show good stability toward photocatalysis. Furthermore, compound 5 is photocatalytically more active than 1 and 2 because of the relatively narrower band gap calculated from LMCT transitions. In addition, the formation rate of •OH radicals on compound 5/H2O interface via photocatalytic reactions is much higher than that of 1 and 2, implying that the formation rate of •OH radicals during photocatalysis is in agreement with photocatalytic activity and the formation rate of •OH radicals is an important factor influencing photocatalytic performance.

Imidazole

Biphenyl

Visible spectrum

10.1021/cg2016512

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Citations (217)