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Short-wave infrared continuous-variable quantum key distribution over satellite-to-submarine channels

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Chinese Physics B 2022年第6期31卷 211-220页

作者： Qingquan Peng Qin Liao hai Zhong Junkai Hu ying guo School of Automation Central South UniversityChangsha 410083China College of Computer Science and Electronic Engineering Hunan UniversityChangsha 410082China School of Computer Science Beijing University of Posts and TelecommunicationsBeijing 100876China

The trans-media transmission of quantum pulse is one of means of free-space transmission which can be applied in continuous-variable quantum key distribution(CVQKD)*** traditional implementations for atmospheric channels,the 1500-to-1600-nm pulse is regarded as an ideal quantum pulse ***,the underwater transmission of this pulses tends to suffer from severe attenuation,which inevitably deteriorates the security of the whole CVQKD *** this paper,we propose an alternative scheme for implementations of CVQKD over satellite-to-submarine *** estimate the parameters of the trans-media channels,involving atmosphere,sea surface and seawater and find that the shortwave infrared performs well in the above *** 450-nm pulse is used for generations of quantum signal carriers to accomplish quantum communications through atmosphere,sea surface and seawater *** simulations show that the proposed scheme can achieve the transmission distance of 600 *** addition,we demonstrate that non-Gaussian operations can further lengthen its maximal transmission distance,which contributes to the establishment of practical global quantum networks.

关键词： continuous-variable quantum key distribution(CVQKD) short-wave infrared satellite-to-submarine

China-India: Ties that Bind

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China Today 2025年第1期74卷 59-61页

作者： guo QING 不详

From international student to professor,Tripathi Mani shares his thoughts on Chinese and Indian cultures and the beneficial exchanges between *** Vivek Mani first learned about China from bedtime stories told by his father,a Sanskrit teacher in rural Bihar,a state in east *** of the stories were about the Chinese monk Xuanzang’s adventures during his long journey to India to find Buddhist *** kindled the young boy’s interest in China and the desire to visit it one day.

关键词： India Indian desire

Sequence-activated chemiluminescence probes: programmable illumination for high-contrast in vivo sensing and imaging

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Science China Chemistry 2025年第01期 26-34页

作者： Yutao Zhang Juan Li Wei-Hong Zhu Zhiqian guo Shanghai Key Laboratory of Functional Materials Chemistry Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry and Molecular Engineering East China University of Science and Technology State Key Laboratory of Bioreactor Engineering Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell MetabolismEast China University of Science & Technology

Sequence-activated chemiluminescence(CL) technique offers a unique approach to detecting specific biomolecules or cellular events with high sensitivity and spatial resolution. The fundamental principle behind sequence-activated CL probes involves tailoring highly-controllable CL signals in response to specific sequences or events of interest, thus enabling high-contrast signals under complex physiological conditions. This sequential activation could be triggered by enzymes, reactive oxygen species(ROS), biothiols or changes in the microenvironment. These unique sequence-activated CL probes bestow several advantages, including minimal background, deep-tissue penetration, and the ability of non-invasive or minimally invasive detection. The sequence-activated CL techniques represent a significant advancement in molecular imaging and diagnostics. In this mini-review, we focus on the latest developments in sequential CL probes, addressing the technical challenges and discussing the future trajectory by harnessing CL signaling and molecular recognition.

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Hybrid linear amplifier-involved detection for continuous variable quantum key distribution with thermal states

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Chinese Physics B 2020年第5期29卷 132-141页

作者： Yu-Qian He Yun Mao hai Zhong Duang Huang ying guo School of Automation Central South UniversityChangsha 410083China School of Computer Science and Engineering Central South UniversityChangsha 410083China

Continuous-variable quantum key distribution(CVQKD)can be integrated with thermal states for short-distance wireless quantum ***,its performance is usually restricted with the practical thermal *** propose a method to improve the security threshold of thermal-state(TS)CVQKD by employing a heralded hybrid linear amplifier(HLA)at the *** find the effect of thermal noise on the HLA-involved scheme in near-and-mid infrared band or terahertz band for direct and reverse *** simulations show that the HLA-involved scheme can compensate for the detriment of thermal noise and hence increase the security threshold of *** near-and-mid infrared band,security threshold can be extended by 2.1 dB in channel loss for direct reconciliation and 1.6 dB for reverse reconciliation,whereas in terahertz band,security threshold can be slightly enhanced for the gain parameter less than 1 due to the rise in thermal noise.

关键词： continuous-variable quantum key distribution thermal state hybrid linear amplifier

The deposition of asphaltenes under high-temperature and highpressure (HTHP) conditions

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Petroleum Science 2023年第1期20卷 611-618页

作者： Rui-ying Xiong Ji-Xiang guo Wyclif Kiyingi hai-Xia Xu Xin-Peng Wu Unconventional Petroleum Research Institute China University of PetroleumBeijing102249China Petroleum Engineering Research Institute of Tarim Oilfield China National Petroleum CorporationXinjiang84100China

In this work,the factors affecting asphaltenes deposition in high-temperature and high-pressure wells were studied using backscattered light and PVT equipment customized to suit the well *** an examination of the intensity of backscattered light,it was revealed that there exists a linear relationship between temperature and asphaltene precipitation within a specific temperature *** this range,a decrease in temperature tends to accelerate asphaltene ***,the impacts of pressure and gas-oil ratio are more *** pressure depletion induces the asphaltenes to precipitate out of the solution,followed by the formation of flocs below the bubble *** addition,an increase in the gas-oil ratio causes a more severe asphaltene deposition,shifting the location of asphaltenes to deep well sections.

关键词： HTHP reservoir Asphaltene Aggregation Gas-oil ratio HTHP PVT cell Back-scattered light

DABCO-based ionic liquids:Green and efficient catalysts with a dual catalytic role for aza-Michael addition

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Chinese Chemical Letters 2015年第3期26卷 377-381页

作者： hai-Liang Hou Fang-Li Qiu An-guo ying Song-Lin Xu School of Chemical Engineering and Technology Tianjin University School of Pharmaceutical and Chemical Engineering Taizhou University

Four recoverable and reusable ionic liquids based on 1,4-diazobicyclo[2.2.2]octane（DABCO） have been synthesized to catalyze the aza-Michael addition of secondary amines to a,b-unsaturated *** the catalysts tested,[DABCO-PDO][OAc] was found to be most suitable for the reaction of a wide range of cyclic substrates without any solvent at room temperature,and afford the products in good to excellent yields within an appropriate amount of *** proposed mechanism for the dual activation of the catalyst was supported by experimental results as well as the DFT *** addition,the ionic liquids used can be regenerated and recycled several times without any loss of activity.

关键词： liquids ionic afford unsaturated acrylate catalyze amines reusable recycled carbonyl

Impact of hydrothermal process on the nutrient ingredients of restaurant garbage

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Journal of Environmental Sciences 2006年第5期18卷 1012-1019页

作者： REN Lian-hai NIE Yong-feng LIU Jian-guo JIN Yi-ying Sun Lu Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China Department of Chemical and Environmental Engineering Beijing Technology and Business University Beijing 100037 China Department of Environmental Engineering China Agricultural University Beijing 100094 China

In order to recover the nutrient resource from restaurant garbage, a complete trial with 2 factors on 5 levels of experiments was carried out. The temperature and heating time are the main factors influencing on hydrothermal process （HP） by which improves the degradability and digestibility of the restaurant garbage favorably to make animal feeds or fertilizer. The results showed the variation of protein, saccharide, and oil in the garbage. It showed that protein dissolved and liquefied during hydrothermal process, which made organic nitrogen in solid phase transfer to liquid phase. After heating at 180℃ for 60min, organic nitrogen in liquid phase began to transform into ammonia. It also showed that hydrothermal process could promote the dextrinization, dissolution of the starch and its hydrolysis to reducing sugar, due to that starch in the restaurant garbage decreases and reducing sugar increases. When the temperature reached 140℃, the reducing sugar started to decrease due to chemical reactions. The cellulose was stable at 100-180℃. The floatable oil increased markedly in the hydrothermal process. The suitable condition for de-oil was observed at 160℃ heating for 80 min. Furthermore, the extraction of grease from the solid phase accords with first-order reaction dynamic model.

关键词： restaurant garbage hydrothermal process protein saccharide lipid

Understanding the Separations of Oil/Water Mixtures from Immiscible to Emulsions on Super-wettable Surfaces

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Journal of Bionic Engineering 2016年第1期13卷 1-29页

作者： hai Zhu Zhiguang guo Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei University Wuhan 430062 China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China

As the frequent oil spill accidents happens and large quantities of oily wastewater from all kinds of industries are being discharged, the environment has been seriously polluted and our living areas have been horribly threatened. To deal with these issues, attentions have been aroused on the treatments of the oily wastewater. Recently, numerous superwettable materials have been fabricated. In this review, we summarize the new development of the materials for the separation of oil/water mixtures, mainly including the immiscible and emulsified mixtures. For the separation of immiscible ones, special materials with fixed wettability are firstly detailed, where three types of materials can be classified based on their wettability, i.e. superhydrophobic and superoleophilic materials, superhydrophilic and underwater superoleophobic materials, and superhydrophilic and su- peroleophobic materials. Then, the smart materials with switchable wettabilities responsive to external stimulus, for instance, light, solvent, pH, temperature, and electrical potential, are presented. Meanwhile, the single, dual, and multiple stimu- lus-responsive materials are also described. As for the separation of emulsified oil/water mixtures, the materials for the sepa- ration of water-in-oil （W/O）, oil-in-water （O/W）, and both water-in-oil （W/O） and oil-in-water （O/W） emulsions are sequen- tially introduced. Finally, some challenges are discussed and the outlook in this filed is proposed.

关键词： superwettable immiscible mixtures emulsified mixtures separation materials

Wetting Characterizations of Oilseed Rapes

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Journal of Bionic Engineering 2016年第2期13卷 213-219页

作者： hai Zhu Zhiguang guo Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Key Laboratory for the Green Preparation and Application of Functional Materials (Minisory of Education) Hubei University Wuhan 430062 China State Key Laboratory of Solid Lubrication Lanzhou hlstitute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China

Oilseed rape, widely cultivated all over the world, plays an important role for our daily life due to its high nutritional and economic values. In this paper, for the first time we discuss the surlhce wettability of oilseed rapes with special surface structures. It is found that the fresh rape flowers are superhydrophobic with a low Adhesion Force （AF）, showing the self-cleaning properties similar to lotus leaves. In contrast, the fresh rape leaves also exhibit hydrophobicity but a high AF, which resemble rose petals. Furthermore, we study the effect of storage time on the wetting properties of rape leaves. The high hydrophobicity of rape leaves gradually switches to hydrophilicity. Meanwhile, the AF intensely increases after placement at room temperature for 10 days. This research offers a profound inspiration to artificially fabricate biomimetic materials with high hydrophobicity and different adhesion characterizations.

关键词： oilseed rape wettability adhesion force lotus leaves rose petals biomimetic materials