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Integrated impacts of climate change on glacier tourism

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Advances in Climate Change Research 2019年第2期10卷 71-79页

作者： WANG Shi-Jin ZHOU lan-yue State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou 730000 China University of Chinese Academy of Sciences Beijing 100000 China

Glacier tourism is an important type of nature-based tourism with great global potential. However, glacial landscapes and environments are seriously affected by global warming. This study used a scoping review method to explore integrated impacts of climate change on glaciers from the academic literature. All reviewed literature included a wide range of both research and non-research-based data or information. All literature was reviewed by summarizing findings of relevant research. It showed that climate warming has led to rapid melting and retreat of glacier landscapes, which has resulted in a huge impact on economic and social systems. The findings indicated that some glacial landscapes are declining in aesthetics or attractiveness while some landscapes face the prospect of sustained decline or even disappearance. This not only affects glacial cultural appreciation or mountain residents' beliefs, but increases the difficulty in entering and experiencing glaciers. Some points of tourism even face the risk of glacial disaster. Rapid glacial retreat or even disappearance will bring a loss of tourism revenues. At present, it is urgent to anticipate and adapt to these integrated impacts. In short, this study provides a general review of the impacts of climate change on glacial tourism and also some references for the adaptation of future glacial tourism to climate change.

关键词： Climate change Glacier tourism Integrated impacts

Duplication of 19q (13.2-13.31) associated with comitant esotropia: A case report

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World Journal of Clinical Cases 2021年第20期9卷 5526-5534页

作者： yue-lan Feng Ning-Dong Li Department of Ophthalmology National Center for Children's HealthBeijing Children’s HospitalCapital Medical UniversityBeijing 100045China Department of Ophthalmology First Hospital Affiliated to Baotou Medical CollegeBaotou 014010Inner Mongolia Autonomous RegionChina

BACKGROUND Comitant esotropia is the most common form of *** is caused by heterogeneous environmental and genetic risk *** pure duplication of the long arm of chromosome 19 is a rare *** 8 patients with partial trisomy of the long arm of chromosome 19q have been reported to ***,we describe a girl with pure duplication of 19q,who was diagnosed with congenital esotropia,microcephaly,and gallbladder *** SUMMARY The patient was diagnosed with esotropia when she was *** Krimsky method showed+50 prism diopters in the primary gaze *** additional abnormal findings were observed following slit lamp and fundus examination,but the features of the full-field electroretinogram showed a decreased amplitude and increased implicit *** resonance imaging showed ventriculomegaly with thinning of the corpus callosum and splenium in her brain.A 4.42 Mb mosaic duplication within 19q13.2-q13.31 region(chr19:39,343,725 to 43,762,586)was detected by microarray comparative genomic *** Strabismus is reported in many live borns with pure duplication of *** important clinical characteristic indicates that the candidate genes fundamental for this phenotype may be narrowed to genes within the 19q13.3-q13.31 *** were two candidate genes observed that may contribute to the comitant esotropia phenotype,namely XRCC1(19:43,543,311)and SMG9(19:43,727,991).

关键词： Duplication 19q Esotropia Strabismus XRCC1 SMG9 Case report

Generation of non-integer high-order harmonics and significant enhancement of harmonic intensity

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Chinese Physics B 2021年第4期30卷 221-225页

作者： Chang-Long Xia yue-yue lan Xiang-Yang Miao College of Physics and Information Engineering Shanxi Normal UniversityLinfen 041004China Key Laboratory of Spectral Measurement and Analysis of Shanxi Province Shanxi Normal UniversityLinfen 041004China

High-order harmonics from helium atom in the orthogonally two-color(OTC) laser field are investigated by solving the two-dimensional time-dependent Schrodinger ***-integer high-order harmonics are obtained in some ratio of frequencies of two *** odd and even harmonics from atoms could be separated in two components by adjusting the ratio of frequencies in OTC scheme,and the resolution of harmonics is improved at the same *** physical mechanism is explained by the periodicity of *** the same intensity of the incident laser,the intensity of the high-order harmonics from the OTC field scheme is improved by three orders of magnitude compared to the monochromatic laser field scheme.A theoretical scheme is provided for experimentally achieving improving energy resolution and separation of pure odd and even harmonics in ***,we provide a means for improving harmonic intensity.

关键词： non-integer high-order harmonic generation the orthogonally two-color laser field the enhancement of harmonic intensity

One-step modification method of a superhydrophobic surface for excellent antibacterial capability

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Friction 2023年第4期11卷 524-537页

作者： Ling lan yue-lan DI Hai-dou WANG Yan-fei HUANG Li-na ZHU Xu-hang LI School of Engineering and Technology China University of Geosciences(Beijing)Beijing 100083China National Key Laboratory for Remanufacturing Academy of Army Armored ForcesBeijing 100072China National Engineering Research Center for Remanufacturing Army Academy of Armored ForcesBeijing 100072China

In this study,micro/nanostructures are fabricated on the surface of 3Cr13 stainless steel via laser etching,and a superhydrophobic coating with silver nanoparticles(AgNPs)is prepared by utilizing the reduction–adsorption properties of polydopamine(PDA).We investigate the effect of soaking time from the“one-step method”on the reduction of nano-Ag,surface wettability,and antibacterial *** electron microscopy is performed to analyze the distribution of nano-Ag on the surface,whereas X-ray energy dispersive spectroscopy and X-ray photoelectron spectroscopy are used to analyze the crystal structures and chemical compositions of different *** deposited with PDA on their surface are soaked in a 1H,1H,2H,2H-perfluorodecyltriethoxysilane water–alcohol solution containing AgNO3 for 3 ***,a“one-step method”is used to prepare low-adhesion superhydrophobic surfaces containing *** immersion progresses,more AgNPs are deposited onto the *** with the polished surface,the samples prepared via the“one-step method”show significant antibacterial properties against both gram-negative Escherichia coli and gram-positive Staphylococcus *** antibacterial properties of the surface improve as immersion progresses.

关键词： laser etching one-step modification polydopamine(PDA)processing silver nanoparticles(AgNPs) antibacterial superhydrophobic coating

Changes in thermal comfortable condition in the Qinghai‒Tibet Plateau from 1979 to 2020

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Advances in Climate Change Research 2022年第5期13卷 666-675页

作者： lan-yue ZHOU Jirgen SCHMUDE Pan-Mao ZHAI Qian WANG Department of Geography Ludwig-Maximilians-University(LMU)Munich 80331Germany State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China

Qinghai‒Tibet Plateau(QTP)is one of the most sensitive regions to climate change in the *** a result,people in the QTP are more likely to be sensitively affected by climate change than those in other regions,particularly in the poverty *** the Universal Thermal Climate Index(UTCI)derived from ERA5 and population data,changes in annual thermal comfort condition and population under such condition in the QTP are systematically *** results reveal that there is considerable regional heterogeneity in the distribution of UTCI and the number of comfortable days(CDs),mainly due to the complex geographic *** most areas of the QTP,the increase in UTCI leads to an increased number of comfortable *** distribution and temporal change in the number of comfortable days are found to be principally related to *** areas within altitudes of 3000–4500 m,the number of comfortable days increases by up to 6 d per decade,which is faster than that in higher elevation areas above 4500 *** also indicate that thermal comfortable condition has improved in areas of 2500–5000 m(medium to high altitude),particularly in spring and *** research indicates that population distribution also shows a regional clustering feature,with the majority of residents residing in cities and their vicinities,where a higher number of comfortable days were *** areas with a greater number of comfortable days have experienced a more significant increase in population under thermal comfortable *** implies that climate change more likely has a large influence on population in the *** findings are expected to enhance tourism development and the assessment of the impact on the living *** findings can be helpful for optimizing of tourism development and better understanding how climate change affects population distribution.

关键词： Climate change Thermal comfortable condition Universal thermal climate index Population Qinghai‒Tibet Plateau

Selection of right-circular-polarized harmonics from p orbital of neon atom by two-color bicircular laser fields

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Chinese Physics B 2019年第10期28卷 315-320页

作者： Chang-Long Xia yue-yue lan Qian-Qian Li Xiang-Yang Miao College of Physics and Information Engineering Shanxi Normal UniversityLinfen 041004China Key Laboratory of Spectral Measurement and Analysis of Shanxi Province Shanxi Normal UniversityLinfen 041004China

The polarization properties of high-order harmonic generation(HHG) in the two-color circularly polarized laser fields are investigated by numerically solving the two-dimensional time-dependent Schr?dinger equation. By adding a wavelength of 1600-nm right-circular-polarized field to an 800-nm left-circular-polarized field, HHG is simulated from a real model of neon atom with p orbital, but not from a hydrogen-like atom model with s orbital. The orders of 3n + 1 can be selected while the orders of 3n + 2 are suppressed by adjusting the intensities of the two pulses. The physical mechanism is analyzed by time-frequency analysis and semiclassical model.

关键词： high-order harmonic generation circular polarization field polarization selection

Generating large steady-state optomechanical entanglement by the action of Casimir force

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Science China(Physics,Mechanics & Astronomy) 2014年第12期57卷 2276-2284页

作者： NIE Wen Jie lan yue Heng LI Yong ZHU Shi Yao Department of Physics Tsinghua University Beijing Computational Science Research Center Department of Applied Physics East China Jiaotong University

In this paper, we study an optomechanical device consisting of a Fabry-P6rot cavity with two dielectric nanospheres trapped near the cavity mirrors by an external driving laser. In the condition where the distances between the nanospheres and cavity mirrors are small enough, the Casimir force helps the optomechanical coupling to induce a steady-state optomechanical entanglement of the mechanical and optical modes in a certain regime of parameters. We investigate in detail the dependence of the steady- state optomechanical entanglement on external control parameters of the system, i.e., the effective detuning, the pump powers of the cavity, the cavity decay rate and the wavelength of the driving field. It is found that the large steady-state optomechanical entanglement, i.e. EN = 5.76, can be generated with experimentally feasible parameters, i.e. the pump power P = 18.2 μW, the cavity decay rate K = 0.5 MHz and the wavelength of the laser AL=1064 nm, which should be checked by optical measurement.

关键词： optomechanics Casimir effect entanglement

Robust damage warning and healing tracing strategy for anticorrosion coatings on magnesium alloy AZ31enabled by polydopamine fluorophores

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Journal of Materials Science & Technology 2023年第21期152卷 169-180页

作者： Chengbao Liu Li Cheng lan-yue Cui Peimin Hou Bei Qian Rong-Chang Zeng College of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266590China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Marine Coatings Marine Chemical Research InstituteQingdao 266071China College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural UniversityQingdao 266109China

Polymeric coatings are susceptible to microdefects that are difficult to detect thus leading to premature failure of metallic components or even catastrophic *** obtaining considerable progress in damage healing and detecting,it is still challenging for anticorrosion coating to realize warning the damage generation and tracing the healing process *** article validates a robust strategy based on damage-induced fluorescence enhancement effect to visualize dynamic damage-healing processes in anticorrosion coatings on magnesium alloy *** embedding fluorescent poly-dopamine nanoparticles into thermo-responsive epoxy resin,immediate fluorescence was intensified at coating *** electrochemical impedance and salt spray results proved that the prepared coating possessed pronounced healing and corrosion protection capability with near-infrared ***,the healing behavior can be traced and visualized based on the decrease in fluorescence *** work opens a new avenue to monitor the failure and self-healing mechanism of anticorrosion coatings,providing guideline for engineering of next generation smart protection materials.

关键词： Damage warning Healing tracing Corrosion protection Photothermal conversion Coating

Des-gamma-carboxy prothrombin is a promising biomarker of hepatocellular carcinoma and a predictor of complications in patients with chronic liver diseases

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Hepatobiliary & Pancreatic Diseases International 2023年第2期22卷 200-204页

作者： lan-yue Pan Xiao-Meng Hu Peng Han Dao-Feng Yang Department and Institute of Infectious Diseases Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Tuberculosis Ⅳ Ward Wuhan Pulmonary HospitalWuhan 430030China Department of Thoracic Surgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

To the Editor: Although des-gamma-carboxy prothrombin(DCP) is considered a complementary biomarker to alpha-fetoprotein(AFP) in the diagnosis of hepatocellular carcinoma(HCC), its cut-off value has not been recommende... 详细信息

关键词： prothrombin hepatocellular diagnosis