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Contribution of UNESCO designated sites to the achievement of Sustainable Development Goals

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The Innovation 2022年第3期3卷 3-4页

作者： Lei Luo xinyuan wang Huadong Guo International Research Center of Big Data for Sustainable Development Goals(CBAS) Beijing 100094China Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China International Centre on Space Technologies for Natural and Cultural Heritage(HIST)Under the Auspices of UNESCO Beijing 100094China

UNESCO designated sites(UDSs),including World Heritage Sites(WHSs),Biosphere Reserves(BRs)and Global Geoparks(GGPs),are a collection of focal spots deemed to be holding significant value for sustainable development within diverse environmental,social,and economic contexts.1 However,there is a clear lack of understanding and acknowledgement of UDSs’value and their specific contributions in policy-making related to *** is especially true of the 17 Sustainable Development Goals(SDGs)that are part of the UN’s 2030 Agenda.

关键词： UNESCO Sustainable policy

Remote sensing archaeology: The next century

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The Innovation 2022年第6期3卷 5-6页

作者： Lei Luo xinyuan wang Huadong Guo International Research Center of Big Data for Sustainable Development Goals(CBAS) Beijing 100094China Key Laboratory of Digital Earth Science Aerospace Information Research Institute(AIR)Chinese Academy of Sciences(CAS)Beijing 100094China International Centre on Space Technologies for Natural and Cultural Heritage(HIST)Under the Auspices of UNESCO Beijing 100094China

THE SCIENCE OF REMOTE SENSING ARCHAEOLOGY The science of remote sensing archaeology(RSA)is a traditional yet innovative sub-discipline of archaeology that studies how to use general remote sensing technology to capture and interpret the characteristics of data taken from physical remains related to human activities,then using these findings to understand human history and *** theoretical and practical basis for aerial photography archaeology,the principle behind RSA,was first described by Crawford in 1923.

关键词： Remote arch innovative

Nerve regeneration following implantation of axotomized nerves pretreated with gamma radiation

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Neural Regeneration Research 2008年第10期3卷 1121-1123页

作者： xinyuan wang Dehai Chang Shihua Xie Chunming Han Jinsheng Sheng Center of Orthopedics ancl Trauma Tenth Hospital of Lanzhou Military Area Command of Chinese PLA Wuwei 733000 Gansu Province China

BACKGROUND： It has been shown that irradiation to the neurolemma can reduce immuuogenicity. However, it is still poorly understood whether the degenerated nerve can affect peripheral nerve regeneration OBJECTIVE： To observe the effect of radiation-damaged nerve transplantation on functional recovery of the peripheral nerve. DESIGN, TIME AND SETTING： Self-control animal trial was performed at the Experimental Center of Orthopedics, Tangdu Hospital of Fourth Military Medical University from January to October 2005. MATERIALS： Fifty-four healthy, Chinese rabbits, irrespective of gender, were randomly divided into experimental （n = 36） and control （n = 18） groups. A 60 Co Y -radiation machine and NDI-200 nerve electromyograph were provided by the Experimental Center of Orthopedics, Tangdu Hospital of Fourth Military Medical University. METHODS： A median incision was made in the posterior right thigh of rabbits after abdominal anesthesia. A 30-mm segment of sciatic nerve was excised from the inferior margin of the piriform muscle to the tibiofibular intersection. The sciatic nerve in the experimental group was sterilely radiated with 350 Gy for 9.5 minutes. The damaged nerve segment was then re-transplanted. In the control group, the sciatic nerve was re-transplanted directly following excision. Nerve conduction velocity was determined at 4, 6, and 8 months post-surgery. MAIN OUTCOME MEASURES： Functional assessments, such as gait, nutritional status of skin on dorsum of foot, toe spreading reflex, and foot holding, were made between 1 and 180 days post-surgery. The common peroneal nerve and tibial nerve reflexes under clamping were observed at 4, 6, and 8 months post-surgery to evaluate functional restoration of the peripheral nerve. Electromyogram was performed to observe nerve conduction velocity. RESULTS： From postoperative days 1 to 26, the limbs that were transplanted with irradiated nerve exhibited dragged walking, foot drop, sole ulcers, depilation, self-induced i

关键词： axotomized nerve gamma radiation re-transplantation toe-spreading reflex

Study on the Microscopic Network Model of PVA Hydrogel Based on the Tensile Behavior

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Acta Mechanica Solida Sinica 2019年第5期32卷 663-674页

作者： Kejia Xu Liqun Tang Yongrou Zhang Rong Ding xinyuan wang Dafei Huang Jiansheng Lin School of Civil Engineering and Transportation South China University of TechnologyGuangzhouChina Guangdong Institute of Intelligent Manufacturing GuangzhouChina

Hydrogel is an emerging material widely used in the biological *** tensile properties of hydrogel mainly depend on its polymer network,but due to the complex microstructure of the network,some properties of the hydrogel have yet to be qua nt itatively *** this article,we built a three-dimensional random fiber net work to characterize the micros tructure of a *** fibers were simplified as elastic beams,and the cross-links were regarded as"hinges."Combined with the macroscopic experimental results,the influence of the change of fiber length and the relationship between the polymer content and the cross-link density were *** model was verified by the quasi-static tensile test results of real PVA hydrogel materials with different fiber *** results show that the model can well match the tensile stress-strain curve and tensile strength of the PVA hydrogels with different fiber *** change in micros true ture of the fiber network induces nonlinear behaviors,and although the cross-link number increases with the increase in polymer content,the cross-link density(per unit PVA chain length)of the PVA hydrogel slightly decreases as the content increases.

关键词： PVA hydrogel Micro-model Tensile behavior Fiber network

Mapping of wind energy potential over the Gobi Desert in Northwest China based on multiple sources of data

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Frontiers of Earth Science 2018年第2期12卷 264-279页

作者： Li LI xinyuan wang Lei LUO Yanchuang ZHAO Xin ZONG Nabil BACHAGHA Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital Earth Chinese Academy of Sciences Beijing 100094 China University of Chinese Academy of Sciences Beijing 100049 China International Centre on Space Technologies for Natural and Cultural Heritage Beijing 100094 China

In recent years, wind energy has been a fastgrowing alternative source of electrical power due to its sustainability. In this paper, the wind energy potential over the Gobi Desert in Northwest China is assessed at the patch scale using geographic information systems (GIS). Data on land cover, topography, and administrative boundaries and 11 years (2000‒2010) of wind speed measurements were collected and used to map and estimate the region’s wind energy potential. Based on the results, it was found that continuous regions of geographical potential (GeoP) are located in the middle of the research area (RA), with scattered areas of similar GeoP found in other regions. The results also show that the technical potential (TecP) levels are about 1.72‒2.67 times (2.20 times on average) higher than the actual levels. It was found that the GeoP patches can be divided into four classes: unsuitable regions, suitable regions, more suitable regions, and the most suitable regions. The GeoP estimation shows that 0.41 billion kW of wind energy are potentially available in the RA. The suitable regions account for 25.49%, the more suitable regions 24.45%, and the most suitable regions for more than half of the RA. It is also shown that Xinjiang and Gansu are more suitable for wind power development than Ningxia.

关键词： wind energy alternative energy sustainability Northwest China Gobi Desert

Sensitively detecting antigen of SARS-CoV-2 by NIR-Ⅱ fluorescent nanoparticles

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Nano Research 2022年第8期15卷 7313-7319页

作者： Ruibin Hu Tao Liao Yan Ren Wenming Liu Rui Ma xinyuan wang Qihui Lin Guoxin wang Yongye Liang Department of Materials Science and Engineering Southern University of Science and Technology of ChinaShenzhen 518055China WWHS Biotech.Inc. Shenzhen 518122China Joint Laboratory for Infectious Disease Prevention and Control Hygienic Section of Longhua Center for Disease Control and PreventionLonghua DistrictShenzhen 518109China

Early detection of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection is an efficient way to prevent the spread of coronavirus disease 2019(COVID-19).Detecting SARS-CoV-2 antigen can be rapid and convenient,but it is still challenging to develop highly sensitive methods for effective ***,a lateral flow assay(LFA)based on fluorescent nanoparticles emitting in the second near-infrared(NIR-II)window is developed for sensitive detection of SARS-CoV-2 *** from the NIR-II fluorescence with high penetration and low autofluorescence,such NIR-II based LFA allows enhanced signal-to-background ratio,and the limit of detection is down to 0.01 ng·mL^(−1)of SARS-CoV-2 *** the clinical swab sample tests,the NIR-II LFA outperforms the colloidal gold LFA with higher overall percent agreement with the polymerase chain reaction *** clinical samples with low antigen concentrations(~0.015–~0.068 ng·mL^(−1))can be successfully detected by the NIR-II LFA,but fail for the colloidal gold *** NIR-II LFA can provide a promising platform for highly sensitive,rapid,and cost-effective method for early diagnosis and mass screening of SARS-CoV-2 infection.

关键词： coronavirus disease 2019(COVID-19) severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) antigen detection the second near-infrared(NIR-II)fluorophores lateral flow assay

N and P resorption in a pioneer shrub(Artemisia halodendron) inhabiting severely desertified lands of Northern China

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Journal of Arid Land 2014年第2期6卷 174-185页

作者： YuLin LI Chen JING Wei MAO Duo CUI xinyuan wang XueYong ZHAO Naiman Desertification Research Station Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of Sciences

Nutrient resorption is an important conservation mechanism for plants to overcome nutrient limitation in the less fertile area of desertifled land. In the semi-arid Horqin Sandy Land of Northern China, the shrub Artemisia ha/odendron usually colonizes into the bare ground of severely desertified land as a pioneer species. It is, therefore, expected that A. ha/odendron will be less dependent on current nutrient uptake through efficient and proficient re- sorption of nutrients. In this study, we found that averaged nitrogen （N） and phosphorus （P） concentrations in se- nesced leaves significantly varied from 12.3 and 1.2 mg/g in the shifting sand dune to 15.9 and 1.9 mg/g in the fixed sand dune, respectively, suggesting that foliar N and P resorption of A. ha/odendron were more proficient in the shifting sand dune. In particular, positive relationships between nutrient concentrations in senesced leaves and soil nutrient availability indicate that A. ha/odendron in infertile habitats is more likely to manage with a low level of nu- trients in senesced leaves, giving this species an advantage in infertile soil. Moreover, foliar N- and P-resorption efficiencies and proficiencies showed limited inter-annual variability although annual precipitation varied greatly among 2007-2009. However, N and P resorption of A. ha/oc/endron were not more efficient and proficient than those previously reported for other shrubs, indicating that the pioneer shrub in sand dune environments does not rely more heavily than other plants on the process of resorption to conserve nutrients. Incomplete resorption of nutrients in A. halodendron suggests that senesced-leaf fall would return litter with high quality to the soil, and thereby would indirectly improve soil nutrient availability. The restoration of desertified land, therefore, may be ac- celerated after A. halodendron pioneers into shifting sand dunes.

关键词： foliar nutrient concentration nutrient-resorption efficiency nutrient-resorption proficiency senesced vs. green leaves desertification soil nutrient availability

High brightness NIR-Ⅱ nanofluorophores based on fused-ring acceptor molecules

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Nano Research 2020年第9期13卷 2570-2575页

作者： Xingfu Zhu Chunchen Liu Zhubin Hu Haile Liu Jiang wang Yang wang xinyuan wang Rui Ma Xiaodong Zhang Haitao Sun Yongye Liang Department of Materials Science and Engineering Shenzhen Key Laboratory of Printed Organic ElectronicSouthern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200062China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China Department of Physics and Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology School of ScienceTianjin UniversityTianjin 300350China

It is challenging to develop molecular fluorophores in the second near-infrared(NIR-Ⅱ)window with long wavelength emission and high brightness,which can improve the performance of biological ***,we report a molecular engineering approach to afford NIR-Ⅱ fluorophores with these merits based on fused-ring acceptor(FRA)*** 3,4-propylenedioxy thiophene(PDOT-C8)is utilized as the bridging donor to replace 3-ethylhexyloxy thiophene(3-EHOT),leading to more than 20 times enhancement of *** nanofluorophores(NFs)based on the optimized CPTIC-4F molecule exhibit an emission peak of 1,110 nm with a fluorescence quantum yield(QY)of 0.39%(QY of IR-26 is 0.050%in dichloroethane as reference)and peak absorption coefficient of 14.5 x 10^4 M^-1·cm^-1 in aqueous solutions,which are significantly higher than those of 3-EHOT based COTIC-4F *** is found that PDOT-C8 can weaken intermolecular aggregation,enhance protection of molecular backbone from water,and decrease backbone distortion,beneficial for the high *** with indocyanine green with same injection dose,CPTIC-4F NFs show 10 times higher signal-to-background ratio for whole body vessels imaging at 1,300 nm long pass filters.

关键词： nanofluorophores fused-ring acceptor propylenedioxy thiophene high brightness second near-infrared(NIR-Ⅱ)biological imaging

Presence of a long nuclear-localization signal sequence in homeodomain transcription factor Nkx 1.2

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Journal of Oceanology and Limnology 2024年第2期42卷 620-626页

作者： Xinyi LI Lihui CHEN xinyuan wang Chen SUN Guangdong JI Guobin HU Zhenhui LIU College of Marine Life Science and Institute of Evolution&Marine Biodiversity Ocean University of ChinaQingdao 266003China Laoshan Laboratory Qingdao 266237China

Homeodomains,a 60-amino acid sequence encoded by 180 nucleotides,are highly conserved DNA-binding motifs that are present in a variety of transcription factors in species ranging from yeast to *** NKX proteins belong to the homeodomain(HD)-containing transcription factor *** play vital roles in the regulation of ***1-2 is one member of the NKX *** present,information about its nuclear localization signal(NLS)sequence is *** studied the NLS sequence of zebrafish Nkx1.2 by introducing sequence changes such as deletion,mutation,and truncation,and identified an NLS motif(QNRRTKWKKQ)that is localized at the C-terminus of the ***,the deletion of two amino acid residues(RR)in this NLS motif prevents Nkx1.2 from entering the nucleus,indicating that the two amino acids are essential for Nkx1.2 nuclear ***,the NLS motif alone is unable to target cytoplasmic protein glutathione S-transferase(GST)to the *** intact homeodomain is necessary for mediating the complete nuclear transport of cytoplasmic *** most nuclear import proteins with short NLS sequences,a long NLS is present in zebrafish *** also demonstrated that the sequences of homeodomain of NKX1.2 are well conserved among different *** study is informative to verify the function of the NKX1.2 protein.

关键词： NKX1.2 NKX protein homeodomain nuclear localization signal(NLS) nuclear transport