Guan Nan Xi

An Acid‐Activatable Fluorescent Probe for Sulfur Dioxide in Traditional Chinese Medicines and Living Cells

Guan Nan Xi, Peitao Zhou, Congting Yu, Fan Zhang et autres

Abstract Excessive sulfur dioxide (SO₂) disturbs physiology of lysosomes causing diseases and threatening human health. A fluorescent probe has been regarded as one of the most attractive approaches, which is compatible with living cells and possesses high sensitivity. However, most of fluorescent …

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Smart materials for light absorptive rewritable paper: Chromic mechanisms and structural design

Guan Nan Xi, Lan Sheng, Sean Xiao‐An Zhang

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“Co‐Stabilization, Fine‐Tuning” Strategy for Highly Stable Coloring of Stimuli‐Responsive Materials and their Hydrochromic Applications

Junli Gao, Songcheng Wang, Tianyou Qin, Guan Nan Xi et autres

Abstract It is of great significance, but extremely challenging, to endow stimulus‐response materials with both excellent dynamic responsiveness and high coloring stability. Herein, a strategy of “co‐stabilization, fine‐tuning” is proposed to address this conundrum by manipulating multiple dynamically competing supramolecular interactions and …

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Water assisted biomimetic synergistic process and its application in water-jet rewritable paper

Guan Nan Xi, Lan Sheng, Jiahui Du, Jinyan Zhang et autres

The colour of water-jet rewritable paper (WJRP) is difficult to be expanded via single hydrochromic molecule, especially black. Here, inspired by the amazing phenomenon of bound-water in cells enabling various biological transformations via facilitating synergistic inter-/intra-molecular proton transfer, we present a simple …

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Compact Conjugated Polymer Dots with Covalently Incorporated Metalloporphyrins for Hypoxia Bioimaging

Xiaofeng Fang, Bo Ju, Zhihe Liu, Fei Wang et autres

Abstract Hypoxia is closely related to multiple diseases, especially in tumors, which increases the aggressiveness and drug resistance of cancer cells. Precise hypoxia imaging is of great significance for cancer diagnosis and the evaluation of therapeutic effects. A kind of hydrophobic polymer …

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Photooxidation of oxazolidine molecular switches: uncovering an intramolecular ionization facilitated cyclization process

Qiaonan Chen, Lan Sheng, Jiahui Du, Guan Nan Xi et autres

Photooxidation of oxazoline (OXA) molecular switches through media-induced intramolecular ionization is reported. The formation of the photooxidation product occurs by attack of the flexible donor group (-CH2CH2OH) to the adjacent C[double bond, length as m-dash]C with 1O2 as the oxidant. The novel …

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Microenvironments induced ring-closing of halide salts of oxazolidines: a rare inverse proton gradient process and its application in water-jet rewritable paper

Wenbin Gao, Tianyou Qin, Guan Nan Xi, Lan Sheng et autres

Ring-closing of ROF + X − generated biomimetic inverse proton gradient was successfully achieved via varying microenvironment for improved performance of water-jet rewritable paper.

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Endowing Hydrochromism to Fluorans via Bioinspired Alteration of Molecular Structures and Microenvironments and Expanding Their Potential for Rewritable Paper

Guan Nan Xi, Lan Sheng, Jiahui Du, Ting Zhang et autres

Interest and effort toward new materials for rewritable paper have increased dramatically because of the exciting advantages for sustainable development and better nature life cycle. Inspired by how nature works within living systems, herein, we have used fluorans, as a concept verification, …

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Smart Grid Control Technology of Multi Diesel Generator Set

Wei You, Lian Hua Wu, Yin Nan Yuan, Guan Nan Xi

In this paper, the application status of diesel generator set and the purpose and advantages and disadvantages of its parallel operation are summarized in brief. Grid connected operation of multi diesel generator are analyzed mainly. The necessary conditions of grid connected operation, …

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Research Status of Key Technologies of Seamless Switching in Micro-Grid

Guan Nan Xi, Wei You, Chuan Xing Wang, Yin Nan Yuan et autres

In allusion to the stability of transferring between grid-connected and off-grid state in micro-grid, this paper introduces the seamless switching technology, analyzes the key technologies of seamless switching and the existing problems, and gets the conclusion about research status of seamless switching.

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Research Progress in Electro-Hydraulic Position Servo Controller

Guan Nan Xi, Jian Li, Chun Ya Sun, Yuan Yuan Zhang et autres

The electro-hydraulic position servo control system is a typical complex nonlinear system. It is difficult in achieving the control which has high quality performance.To overcome the effects of non-linearity, parameter uncertainty, external disturbances and load changes, the design of controller is particularly …

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Research Progress in Natural Frequency Calculation of Heat Exchanger Tube Bundles

Guan Nan Xi, Chao Shi, Shuai Zou, Zi Yang Cheng et autres

Natural frequency in tube bundles is the basis of vibration analysis in the heat exchanger. The calculation methods of the natural frequency are summarized in four type of tube bundles: straight tube, U-bend tube, finned tube and tube-fin. The influence of structure, …

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