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| 1 | The molecular mechanism of photodynamic therapy to fibrosis:Regulation on the pyridinoline cross-link formation in collagen显示文摘Fibrotic processes in tissues are characterised by an excessive accumulation of collagen containing increased levels of pyridinoline cross-links,which has been taken as an important criterion to diagnose the fibrosis.Hypocrellin B(HB) is a natural photosensitizer with excellent photodynamic activity but very low dark-toxicity.In the current work,main purpose was to clarify if photodynamic action of HB could be applied to regulating the level of pyridinoline cross-link in collagen.To use gelatin as a model collagen,it was observed that the pyridinoline cross-link formation was effectively degraded by HB photodynamic action in the gelatin,suggesting the level of pyridinoline cross-link formation in collagen may be photodynamically regulated to a normal level.Furthermore,mechanism of the photodynamic action of HB was studied. | ZHANG JuCheng1,2,LIU Wei1,2,YI ZhongZhou1,2,CHEN Rui1,2,LI Ying1,2 & MIN Yong1,2 1 Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province,Honghe University,Mengzi 661100,China 2 School of Science,Honghe University,Mengzi 661100,China | 2009 | Chinese Science Bulletin2009，54，13： | 2 |
| 2 | Projection of Heat Injury to Single-Cropping Rice in the Middle and Lower Reaches of the Yangtze River, China under Future Global Warming Scenarios显示文摘Based on simulation results from the 16 CMIP5 model runs under three Representative Concentration Pathways(RCP2.6, RCP4.5, and RCP8.5) in combination with the recent five years of growth-stage data from agrometeorological observation stations in the middle and lower reaches of the Yangtze River, changes in heat injury and spatial distribution patterns of single-cropping rice in China during the early(2016–35), middle(2046–65), and late(2080–99) 21 st century were projected by using quantitative estimations. Relative to the reference period(1986–2005), the occurrence probabilities of heat injury to single-cropping rice under different RCP scenarios increased significantly, showing a trend of mild > moderate > severe. The occurrence probabilities increased with time and predicted emissions, especially the average and maximum occurrence probabilities, which were ~48% and ~80%,respectively, in the late 21 st century under the RCP8.5 scenario. The spatial patterns of the occurrence probabilities at each level of heat injury to single-cropping rice did not change, remaining high in the middle planting region and low in the east. The high-value areas were mainly in central Anhui and southeastern Hubei provinces, and the areas extended to the northwest and northeast of the cultivation area over time. Under the RCP2.6, RCP4.5, and RCP8.5 scenarios, the total area of heat injury to single-cropping rice showed a significant linear increasing trend of 7.4 × 10~3, 19.9× 10~3, and 35.3 × 10~3 ha yr^(–1), respectively, from 2016 to 2099, and the areas of heat injury were greatest in the late21 st century, accounting for ~25%, ~40%, and ~59% of the cultivation area. | Xiaomin LYU Guangsheng ZHOU Mengzi ZHOU Li ZHOU Yuhe JI | 2019 | Journal of Meteorological Research2019，33，2： | 1 |
| 3 | Optically transparent graphene-based cognitive metasurface for adaptive frequency manipulation显示文摘Optically transparent microwave absorbing metasurfaces have shown great potential and are needed in multiple applications environments containing optical windows owing to their ability to reduce backscattering electromagnetic(EM)signals while keeping continuous optical observation.Meanwhile,they are also required to have adaptive EM manipulation capability to cope with complex and capricious EM environments.As a general approach,distributed circuit components,including positive-intrinsic-negative diodes and varactors and sensing components,are integrated with passive absorbing metasurfaces to realize adaptive control of microwave absorption.However,these circuit elements generally require bulky electrical wires and complex control circuits to regulate the operating state,resulting in the absorbing structures being optically opaque.Hence,it is a great challenge to realize self-operating absorbers while maintaining optical transparency.Here,we report an optically transparent cognitive metasurface made of patterned graphene sandwich structures and a radio frequency detector,which can achieve adaptive frequency manipulation to match incident EM waves.As a proof-of-principle application example,we realize a closed-loop automatic absorber system prototype of the proposed graphene metasurface with self-adaptive frequency variation,without any human intervention.The approach may facilitate other adaptive metadevices in microwave regime with high-level recognition and manipulation and,more generally,promote the development of intelligent stealth technologies. | MINGYANG GENG XIAOLU YANG HAO CHEN XINZHI BO MENGZI LI ZHENGUO LIU WEIBING LU | 2023 | Photonics Research2023，11，1： | 0 |
| 4 | Effects of Milling Methods on Rice Flour Properties and Rice Product Quality:A Review显示文摘High-quality rice flour is the foundation for the production of various rice-based products.Milling is an essential step in obtaining rice flour,during which significant changes occur in the physicochemical and quality characteristics of the flour.Although rice flour obtained through mainstream wet milling methods exhibits superior quality,low production efficiency and wastewater discharge limit the development of the industry.Dry milling,on the other hand,conserves water resources,but adversely affects flour performance due to excessive heat generation.As an emerging powder-making technique,semi-dry milling offers a promising solution by enhancing flour quality and reducing environmental impact.This is achieved by minimizing soaking time through hot air treatment while reducing mechanical energy consumption to reach saturated water absorption levels.However,continuous production remains a challenge.This comprehensive review summarizes the effects of various milling technologies on rice flour properties and product qualities.It also discusses key control indicators and technical considerations for rice flour processing equipment and processes. | TIAN Yu SUN Jing LI Jiaxin WANG Aixia NIE Mengzi GONG Xue WANG Lili LIU Liya WANG Fengzhong TONG Litao | 2024 | Rice science2024，31，1： | 0 |
| 5 | Reflections on China's Periphery Strategy显示文摘Over the past few years,along with the changing situation in China’s periphery,regional mechanisms and forums have been consolidating.The region’s economy remains the most dynamic in the world,while economic interdependence and integration is growing,regional integration is progressing,linked by common interests.However,conflict will | Fu Mengzi Li Hongli | 2013 | Contemporary International Relations2013，23，6： | 0 |
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