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| 1 | Efficient improvement of 2.7 μm luminescence of Er^(3+):oxyfluoride glass containing gallium by Yb^(3+) ions codoping显示文摘Mid-infrared laser materials with low phonon energy have significant applications. However, the development of available glass systems for high-power laser gain medium have posed a great challenge.Therefore, we investigated the 2.7 μm spectroscopic properties of Er^(3+)/Yb^(3+) -codoped oxyfluoride glass containing gallium, which were prepared by typically melting and quenching methods. The 2.7 μm luminescence properties of the Er^(3+)/Yb^(3+)-codoped oxyfluoride glass containing gallium were recorded by a 980 nm laser diode. The Judde Ofelt parameters, decay curves, emission cross section, energy transfer efficiency and quantum efficiency were calculated. The maximum emission cross section of YbFGa-0.5 is 1.63 × 10^(-20) cm^2 by 980 nm excitation. The energy transfer efficiency is calculated to be77.8% for the YbFGa-0.5 glass around 2700 nm. The quantum efficiency at 1530 nm is 65.6%. The result reveals that the best doping concentration ratio of Er^(3+):Yb^(3+) ions is 1:0.5, and suggests an effective energy transfer from Yb^(3+) to Er^(3+) ions. | Yapei Peng Xinqiang Yuan Long Zhang Peiguang Yan Wenfei Zhang Shuangchen Ruan | 2019 | Journal of Rare Earths2019，37，5： | 5 |
| 2 | Study on activated carbon derived from sewage sludge for adsorption of gaseous formaldehyde显示文摘 | Qingbo Wen Caiting Li Zhihong Cai Wei Zhang Hongliang Gao Lijun Chen Guangming Zeng Xin Shu Yapei Zhao | 2010 | Bioresource Technology2010，，2： | 1 |
| 3 | Research on the designed emergency passive residual heat removal system during the station blackout scenario for CPRI000 显示文摘 | Mingun Wang Hao Zhao Yapei Zhang | 2010 | Annals of Nuclear Energy2010，45，： | 1 |
| 4 | Block copolymer aggregates with photo-responsive switches: Towards a controllable supramolecular container显示文摘 | Wang Yapei Zhang Meng Moers C et a l | 2009 | Polymer2009，50，20： | 1 |
| 5 | Sunlight-controlled CO_(2) separation resulting from a biomass-based CO_(2) absorber显示文摘Renewable solid sorbents for CO_(2) capture and storage have shown great potentials for the sake of gaseous separation,tail gas treatment,environmental regulation and climate governance.However,current existed preparation and reusability of solid sorbents are generally subject to high energy consumption and complicated procedure.Herein,a light-controlled CO_(2) separation system with high working temperature resulting from natural sawdust combined with polyethyleneimine is fabricated,which involves low energy input and few operating sequences.This system shows a direct and ratiometric response to sunlight illumination by which CO_(2) can be reversibly adsorbed and released.This light-controlled CO_(2) separation process is prospective to become an attractive alternative to traditional alkaline CO_(2) collection method in terms of its convenience and low cost.As a practical demonstration,CO_(2) mixed with N_(2) is successfully separated through this light-controlled carbon capture and storage(CCS) system,which offers great promise for CO_(2) capture and enrichment with applicability across a wide range of scales. | Shiming Zhang Qianhao Pan Yapei Wang | 2022 | Green Energy & Environment2022，7，3： | 1 |
| 6 | Channel measurements and models for high-speed train wireless communication systems in tunnel scenarios: a survey显示文摘The rapid developments of high-speed trains(HSTs) introduce new challenges to HST wireless communication systems. Realistic HST channel models play a critical role in designing and evaluating HST communication systems. Due to the length limitation, bounding of tunnel itself, and waveguide effect, channel characteristics in tunnel scenarios are very different from those in other HST scenarios. Therefore, accurate tunnel channel models considering both large-scale and small-scale fading characteristics are essential for HST communication systems. Moreover, certain characteristics of tunnel channels have not been investigated sufficiently. This article provides a comprehensive review of the measurement campaigns in tunnels and presents some tunnel channel models using various modeling methods. Finally, future directions in HST tunnel channel measurements and modeling are discussed. | Yu LIU Ammar GHAZAL Cheng-Xiang WANG Xiaohu GE Yang YANG Yapei ZHANG | 2017 | Science China(Information Sciences)2017，60，10： | 1 |
| 7 | Macrophage-targeted single walled carbon nanotubes stimulate phagocytosis via pH-dependent drug release显示文摘Atherosclerotic cardiovascular disease is the leading cause of mortality in the world.A driving feature of atherosclerotic plaque formation is dysfunctional efferocytosis.Because the“don’t eat me”molecule CD47 is upregulated in atherosclerotic plaque cores,CD47-blocking strategies can stimulate the efferocytic clearance of apoptotic cells and thereby help prevent the progression of plaque buildup.However,these therapies are generally costly and,in clinical and murine trials,they have resulted in side effects including anemia and reticulocytosis.Here,we developed and characterized an intracellular phagocytosis-stimulating treatment in the CD47-SIRPαpathway.We loaded a novel monocyte/macrophage-selective nanoparticle carrier system with a small molecule enzymatic inhibitor that is released in a pH-dependent manner to stimulate macrophage efferocytosis of apoptotic cell debris via the CD47-SIRPαsignaling pathway.We demonstrated that single-walled carbon nanotubes(SWNTs)can selectively deliver tyrosine phosphatase inhibitor 1(TPI)intracellularly to macrophages,which potently stimulates efferocytosis,and chemically characterized the nanocarrier.Thus,SWNT-delivered TPI can stimulate macrophage efferocytosis,with the potential to reduce or prevent atherosclerotic disease. | Yapei Zhang Jianqin Ye Niloufar Hosseini-Nassab Alyssa Flores Irina Kalashnikova Sesha Lakshmi Paluri Mozhgan Lotfi Nicholas J.Leeper Bryan Ronain Smith | 2021 | Nano Research2021，14，3： | 1 |
| 8 | A Theoretical CHF Model for Downward Facing Surfaces and Gaps under Saturated Boiling显示文摘 | Yu Hongxing Zhang Yapei Su Guanghui | 2012 | International Journal of Multiphase Flow2012，45，： | 1 |
| 9 | Study on activated carbon derived from sewage sludge for adsorption of gaseous formaldehyde显示文摘 | Qingbo Wen Caiting Li Zhihong Cai Wei Zhang Hongliang Gao Lijun Chen Guangming Zeng Xin Shu Yapei Zhao | 2010 | Bioresource Technology2010，，2： | 1 |
| 10 | Water-soluble nanocrystalline cellulose films with highly transparent and oxygen barrier properties显示文摘 | Cheng Shaoling Zhang Yapei Ch Ruitao Yang Jinliang Jiang Xingyu | 2016 | Nanoscale2016，8，2： | 1 |
| 11 | Study on activated carbon derived from sewage sludge for adsorption of gaseous formaldehyde 显示文摘 | Qingbo Wen Caiting Li Zhihong Cai Wei Zhang Hongliang Gao Lijun Chen Guangming Zeng Xin Shu Yapei Zhao | 2011 | Bioresource Technology2011，102，2： | 1 |
| 12 | Convenient preparation of charge-adaptive chitosan nanomedicines for extended blood circulation and accelerated endosomal escape显示文摘在 chitosan nanoparticles (CTS NP ) 的发展的主要妨碍作为有效的药交货泡是他们从血和内涵体陷阱的快速的清理。克服这些问题,一个方便、有希望的模板系统被 poly 装饰开发(甲基丙烯酸)(PMAA ) 到 10-hydroxy 的表面, camptothecin (HCPT ) 装载了 CTS NP (HCPT-CTS/PMAA NP ) 。否定地控告的 PMAA 的存在显著地伸长了的结果表演从 12 ~ 24 h 的 HCPT-CTS NP 的血发行量时间,并且在 vivo 从 30.57 ~ 6.72 mL/h 减少了血清理(Cl ) 。在曲线下面的计算区域(AUC 0-24h) 和终端消除半衰期(HCPT-CTS/PMAA NP 的 t 1/2) 与 HCPT-CTS NP 的那些相比是 4.37 褶层和 2.48 褶层。而且,断然控告的 HCPT-CTS/PMAA NP 由肿瘤触发了酸的微型环境(pH 6.5 ) 在 453 褶层的结果更高细胞的举起比在 pH 的否定地控告的对应物 7.4。另外, HCPT-CTS/PMAA NP 有能力在 pH 为 3 h 与 HepG2 房间在孵化以后经由质子海绵效果逃离 endosomal 陷阱 6.5。一起拿,这些调查结果开创一个方便、便宜,却有效的方法作为在未来与提高的长血循环和 endosomal 逃跑能力开发向量的一个候选人准备 HCPT-CTS/PMAA NP 临床的实验。 | Yapei Zhang Yingying Li Jinlong Ma Xinyu Wang Zhi Yuan Wei Wang | 2018 | Nano Research2018，11，8： | 1 |
| 13 | Quartz types,genesis and their geological significance within the Wufeng-Longmaxi Formation in north-western Hunan,China显示文摘Quartz is an important mineral component in the Late Ordovician–Early Silurian Wufeng-Longmaxi Formation with various forms and sources and has a significant impact on the properties of shale gas reservoirs.In this study,geochemical analysis,scanning electron microscopy(SEM)observation,and rock mechanics testing were performed on shale samples from the Wufeng-Longmaxi Formation in north-western Hunan,South China.Quartz is classified into four types based on morphological features and cathodoluminescence(CL)images under SEM–terrigenous detrital quartz,quartz overgrowths,biogenic skeletal quartz and microquartz.The quartz in Upper Longmaxi Formation is predominantly of terrigenous origin and contains a small amount of quartz formed by clay transformation.The quartz in the Wufeng-Lower Longmaxi Formation is predominantly biogenic.The biogenic quartz has a direct effect on organic matter(OM)abundance,pore structure and brittleness.It is indicated by the positive correlation with TOC content and biogenic Ba content that biogenic quartz-rich strata have high paleoproductivity.The rigid frameworks formed by biogenic quartz during the early diagenesis stage facilitated the preservation of the primary pores.The interparticle pores of biogenic quartz are the space for OM preservation and migration,creating conditions for the development of OM pores.Additionally,the calculated brittleness index(BI)shows a positive correlation with biogenic quartz content,indicating that layers rich in biogenic quartz are more conducive to fracture.Therefore,the Wufeng-Lower Longmaxi Formation has higher OM content,porosity and represents a more favorable exploration and development target. | Ke ZHANG Shuheng TANG Zhaodong XI Yapei YE | 2023 | Frontiers of Earth Science2023，17，2： | 0 |
| 14 | pH-Sensitive assembly/disassembly gold nanoparticles with the potential of tumor diagnosis and treatment显示文摘Due to the ability to combine the separately unique characteristics of assembled and disassembled nanoparticles(NPs), the stimuli-responsive self-assembly of NPs has attracted considerable interest in functional material applications especially biomaterials. Here we demonstrate a facile and versatile approach to regulate the self-assembly process and transition pH of Au NPs by fine-tuning the co-modified pH-responsive compounds and poly(ethylene glycol)(PEG). Importantly the transition pH(ΔpH=0.4) of the system can be predetermined in the range of 8.2–5.8(assembled to disassembled) and 8.2–4.2(disassembled to assembled), which ideally covers the pH of normal tissue, tumor tissue milieu and organelles. The results of fluorescence imaging, Raman spectroscopy and photothermal conversion of the stimuli-responsive Au NPs shows the potential application for tumor specificity theranostics. In a nutshell this study provides a useful toolkit to design tumor-activatable self-assembled NPs with high specificity and universality. | Jinlong Ma Xiaomin Li Zhenpeng Hu Xinyu Wang Yapei Zhang Wei Wang Qiang Wu Zhi Yuan | 2019 | Science China Chemistry2019，62，1： | 0 |
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