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Ultra-stable Eu^(3+)-doped CsPbCl_(2)Br_(1) perovskite quantum dots glass for optical temperature sensing 被引量:12
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作者 yanxia yu Guangzhan Shao +4 位作者 Ling Ding Huiling Zhang Xiaojuan Liang Jianping Liu Weidong Xiang 《Journal of Rare Earths》 SCIE EI CAS CSCD 2021年第12期1497-1505,I0002,共10页
In this work,Eu^(3+)-doped CsPbCl_(2)Br_(1) in borosilicate glass was successfully synthesized by the melt quenching annealing technique and crystallization method.This work reports a novel Eu^(3+)-doped CsPbCl_(2)Br_... In this work,Eu^(3+)-doped CsPbCl_(2)Br_(1) in borosilicate glass was successfully synthesized by the melt quenching annealing technique and crystallization method.This work reports a novel Eu^(3+)-doped CsPbCl_(2)Br_(1) perovskite quantum dots(QDs)glass with high sensitivity for optical temperature sensing.The relation of fluorescence intensity ratio(FIR)with the temperature was studied in the temperature range of 80-440 K.Notably,the maximum absolute temperature sensitivity(Sa)and relative temperature sensitivity(Sr)of Eu^(3+)-doped CsPbCl_(2)Br_(1) perovskite QDs glass can reach as high as 0.0315 K-1 and3.097%/K,respectively.Meanwhile,Eu^(3+)-doped CsPbCl_(2)Br_(1) QDs glass demonstrates good water resistance,excellent thermal and cold cycling stability performance,The Eu^(3+)-doped QDs glass materials can bring inspiration to the future exploration of rare earth ion-doped QDs glass material on the application of optical temperature sensing in the future. 展开更多
关键词 Eu^(3+)-doped CsPbCl_(2)Br_(1)quantum dots GLASS Optical temperature sensing Stability Rare earths
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Robust YAG:Ce single crystal for ultra-high efficiency laser lighting 被引量:9
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作者 Yaqian Zhang Jianming Liu +6 位作者 yujie Zhang Haisheng Yang yanxia yu Qingyun He Xiaojuan Liang Yongfu Liu Weidong Xiang 《Journal of Rare Earths》 SCIE EI CAS CSCD 2022年第5期717-724,I0002,共9页
At present,solid-state laser-driven lighting fabricated with blue laser diode(LD)and phosphor has been greatly developed in high-power lighting applications.The major obstacle is the luminescence saturation threshold ... At present,solid-state laser-driven lighting fabricated with blue laser diode(LD)and phosphor has been greatly developed in high-power lighting applications.The major obstacle is the luminescence saturation threshold of the fluorescence conversion material(YAG:Ce).In this work,we successfully prepared a series of high-quality and robust YAG:Ce single crystals.With high quantum efficiency(QE=92%),regular crystal structure and high thermal conductivity,the single-crystal has excellent ability to deal with high radiation flux and thermal accumulation generated by high power.Matching the single-crystal with the laser,the luminous efficiency up to 274 lm/W and saturation threshold of 12 W/mm^(2) were obtained.In addition,the influence of Ce doping concentration and sample processing conditions on the indicators in laser-driven white lighting was systematically studied.The results are of great significance and are believed to promote the development of solid-state laser-driven lighting. 展开更多
关键词 YAG:Ce SINGLE-CRYSTAL Laser diodes Luminous efficiency Saturation threshold Rare earths
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Genome-wide analyses of nonsyndromic cleft lip with or without palate identify 20 new risk loci in the Chinese Han population 被引量:1
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作者 Bao Li Liang Yong +17 位作者 Yafen yu Yanqin yu Qi Zhen Huiyao Ge Yiwen Mao Weiwei Chen yanxia yu Yirui Wang Zhuo Li Wencheng Fan Chang Zhang Xia Hu Ruixue Zhang Lu Cao Hao Liu Zhuan Bian Miao He Liangdan Sun 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2022年第9期903-905,共3页
Orofacial clefts(OFCs),particularly cleft lip with or without cleft palate(CL/P)and cleft palate only(CPO),are among the most common birth defects in humans(Mossey et al.,2009;Dixon et al.,2011).The birth prevalence r... Orofacial clefts(OFCs),particularly cleft lip with or without cleft palate(CL/P)and cleft palate only(CPO),are among the most common birth defects in humans(Mossey et al.,2009;Dixon et al.,2011).The birth prevalence rate of OFCs in China is reported to be as high as 1.66 per thousand newborns. 展开更多
关键词 al. PALATE DIXON
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Promoting ion adsorption and desolvation kinetics enables high capacity and rate capability of stibium anode for advanced alkaline battery
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作者 Peng Zhang Jinhao Xie +3 位作者 Fan Yang Xin Shi yanxia yu Xihong Lu 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2022年第36期60-67,共8页
Stibium(Sb)metal with high theoretic capacity,suitable negative working window and inexpensive nature are promising anode material for advanced aqueous alkaline batteries(AABs).However,the further development of Sb an... Stibium(Sb)metal with high theoretic capacity,suitable negative working window and inexpensive nature are promising anode material for advanced aqueous alkaline batteries(AABs).However,the further development of Sb anode is severely hindered by the low capacity and poor rate capability which is originated from deficient adsorption of[Sb(OH)_(4)]^(-)and its sluggish desolvation kinetics.Herein,a nitrogen doped carbon cages(NCCs)substrate is constructed as high capacity and rate capability anode by promoting the adsorption and following desolvation process of[Sb(OH)_(4)]^(-)via the enhanced attraction toward(OH)-in the solvated[Sb(OH)_(4)]^(-).Consequently,the designed Sb/NCCs anode delivers a high capacity of 627 m Ah g^(-1)with an average 95%Sb utilization,an outstanding coulombic efficiency(CE)of 95%and an impressive lifespan(>110 h).Meanwhile,the Ni_(3)Se_(2)//Sb/NCCs batteries show great capacity retention of 86.7%after 2000 cycles with an areal capacity of 0.52 m Ah cm^(-2).Implementation of the designed anode allows for the construction of Sb-based AABs with enhanced rate capability,energy density and cycling performance. 展开更多
关键词 Aqueous alkaline batteries Stibium anode N-doped carbon Ion adsorption Desolvation kinetics
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Antisense oligonucleotides targeting IRF4 alleviate psoriasis
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作者 yanxia yu Yirui Wang +8 位作者 Weiwei Chen Chang Zhang Zhuo li Jing yu Minhao Wang Can Song Sihao Yan Jiayi Lu Liangdan Sun 《Acta Pharmaceutica Sinica B》 2025年第7期3575-3590,共16页
Interferon regulatory factor 4(IRF4)is a critical transcription factor that governs the differentiation of cluster of differentiation 4^(+)(CD4^(+))T cells.The pathogenesis and progression of psoriasis are primarily a... Interferon regulatory factor 4(IRF4)is a critical transcription factor that governs the differentiation of cluster of differentiation 4^(+)(CD4^(+))T cells.The pathogenesis and progression of psoriasis are primarily attributed to an immune imbalance stemming from the overproduction of interleukin-17A(IL-17A)by T lymphocytes.However,the role of IRF4 in psoriasis remains unexplored.In this study,we found that IRF4 activity is increased in the cutaneous lesions of patients with psoriasis in response to stimulation by IL-23A and IL-1β.This IRF4 elevation heightens its binding to the E1A binding protein p300(EP300)promoter,triggering the transcription of downstream retinoic acid receptor-related orphan receptor-γt(RORγt)and increasing the secretion of IL-17A,thereby establishing the IL-1β/IL-23A–IRF4–EP300–RORC–IL-17A inflammatory cascade in psoriasis.The alleviation of imiquimod(IMQ)-induced psoriatic-like symptoms was achieved through the creation of a Irf4−/−gene deletion mouse model and pharmacological inhibition using antisense oligonucleotides targeted for Irf4.This amelioration was accompanied by a decreased number of IL-17A-producing CD4^(+)T cells in the skin.The findings of this study suggest that IRF4 plays a crucial role in the promotion of inflammation and exacerbation of IMQ-induced psoriasiform dermatitis.Consequently,IRF4 targeting could be a promising therapeutic strategy. 展开更多
关键词 IRF4 IL-17A PSORIASIS PATHOGENESIS CD4 IL-23A IL-1β EP300
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华癸中慢生根瘤菌7653R MCHK-3535基因在自生和与紫云英共生中的功能 被引量:3
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作者 于艳霞 佀再勇 +1 位作者 曾小波 李友国 《微生物学报》 CAS CSCD 北大核心 2019年第3期499-509,共11页
【目的】探究Mesorhizobium huakuii 7653R MCHK-3535基因在共生固氮中的功能。【方法】构建MCHK-3535插入失活突变体、超表达和互补菌株,对其进行共生表型鉴定;并测定各菌株的生长曲线、运动性及生物膜形成;利用qRT-PCR方法和组织表达... 【目的】探究Mesorhizobium huakuii 7653R MCHK-3535基因在共生固氮中的功能。【方法】构建MCHK-3535插入失活突变体、超表达和互补菌株,对其进行共生表型鉴定;并测定各菌株的生长曲线、运动性及生物膜形成;利用qRT-PCR方法和组织表达定位分析MCHK-3535在共生过程中的时空表达特征。【结果】与野生型7653R相比,突变体Δ3535达到稳定期的生物量增加,运动性下降,生物膜形成增加。此外,MCHK-3535基因的失活会显著提高紫云英固氮能力和植物地上部分鲜重,但不影响根瘤数量及重量;且互补菌株C3535能部分回补到野生型性状,超表达菌株OV3535均无显著性差异;qRT-PCR和启动子组织表达定位发现,MCHK-3535基因主要在根瘤的侵染区、过渡区及固氮区表达,并且表达持续整个固氮期。【结论】MCHK-3535基因在自生及与紫云英共生过程中发挥重要功能,参与根瘤的正常发育并负向调控固氮酶活性。 展开更多
关键词 生物固氮 华癸中慢生根瘤菌7653R 共生表型 时空表达
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The role of macrophage reprogramming induced by GRA15II,a polypeptide effector molecule of Toxoplasma gondii,in liver diseases in model mice 被引量:3
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作者 Yihong Cai yanxia yu +6 位作者 Yanling Wang yuan Zhang Qingli Luo Li yu Jian Du Deyong Chu Jilong Shen 《Cellular & Molecular Immunology》 SCIE CAS CSCD 2020年第7期788-790,共3页
Toxoplasma gondii is a widespread parasite that may infect nearly all warm-blooded vertebrates.1 As an obligatory intracellular apicomplexan parasite,T.gondii has three different types of secretory organelles,includin... Toxoplasma gondii is a widespread parasite that may infect nearly all warm-blooded vertebrates.1 As an obligatory intracellular apicomplexan parasite,T.gondii has three different types of secretory organelles,including micronemes,rhoptries(ROP),and dense granules(GRAs),during invasion of host cells.2 Initially,the parasite replicates in a variety of host cell types as tachyzoites,especially in macrophages and dendritic cells(DCs). 展开更多
关键词 PARASITE INVASION diseases
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Shape retrieval by using multi-scale anglebased representation and dynamic label propagation
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作者 yanxia yu Danchen Zheng +3 位作者 Liang Zhao Chuang Sun Xiang Li Yan Zhuang 《IET Cyber-Systems and Robotics》 EI 2020年第4期197-204,共8页
To improve the robustness and discrimination power of the triangle-area representation,a novel shape matching method based on multi-scale angle representation is proposed in this study.By analysing the configurations ... To improve the robustness and discrimination power of the triangle-area representation,a novel shape matching method based on multi-scale angle representation is proposed in this study.By analysing the configurations of different sample points from each shape contour,shape descriptors are constructed by using space angles at different scale levels.With the proposed shape representation,the multi-scale information of shape contours is efficiently described,and the dynamic programming is further used to determine the correspondence between samples from different shapes and calculate the shape distance in the feature matching step.Moreover,to improve the shape retrieval results based on pairwise shape distances,the dynamic label propagation is introduced as the post-processing step.Unlike previous distance learning methods learning the database manifold implicitly,the authors method retrieves relative objects on the shortest paths from near to far explicitly,and the underlying structure can be effectively captured.The proposed method tested on different shape databases provides the performances superior to many other methods,and it can be applied to visual data processing and understanding of the internet of things. 展开更多
关键词 REPRESENTATION DYNAMIC MATCHING
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