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| 1 | Precise nanomedicine for intelligent therapy of cancer显示文摘Precise nanomedicine has been extensively explored for efficient cancer imaging and targeted cancer therapy, as evidenced by a few breakthroughs in their preclinical and clinical explorations. Here, we demonstrate the recent advances of intelligent cancer nanomedicine, and discuss the comprehensive understanding of their structure-function relationship for smart and efficient cancer nanomedicine including various imaging and therapeutic applications, as well as nanotoxicity. In particular, a few emerging strategies that have advanced cancer nanomedicine are also highlighted as the emerging focus such as tumor imprisonment, supramolecular chemotherapy, and DNA nanorobot. The challenge and outlook of some scientific and engineering issues are also discussed in future development. We wish to highlight these new progress of precise nanomedicine with the ultimate goal to inspire more successful explorations of intelligent nanoparticles for future clinical translations. | Huabing Chen Zhanjun Gu Hongwei An Chunying Chen Jie Chen Ran Cui Siqin Chen Weihai Chen Xuesi Chen Xiaoyuan Chen Zhuo Chen Baoquan Ding Qian Dong Qin Fan Ting Fu Dayong Hou Qiao Jiang Hengte Ke Xiqun Jiang Gang Liu Suping Li Tianyu Li Zhuang Liu Guangjun Nie Muhammad Ovais Daiwen Pang Nasha Qiu Youqing Shen Huayu Tian Chao Wang Hao Wang Ziqi Wang Huaping Xu Jiang-Fei Xu Xiangliang Yang Shuang Zhu Xianchuang Zheng Xianzheng Zhang Yanbing Zhao Weihong Tan Xi Zhang Yuliang Zhao | 2018 | Science China Chemistry2018,61,12: | 19 |
| 2 | Geochronology, Geochemistry and Sr-Nd-Pb-Hf Isotopes of No. I Complex from the Shitoukengde Ni–Cu Sulfide Deposit in the Eastern Kunlun Orogen, Western China: Implications for the Magmatic Source, Geodynamic Setting and Genesis显示文摘The Shitoukengde Ni-Cu deposit, located in the Eastern Kunlun Orogen, comprises three mafic–ultramafic complexes, with the No. I complex hosting six Ni-Cu orebodies found recently. The deposit is hosted in the small ultramafic bodies intruding Proterozoic metamorphic rocks. Complexes at Shitoukengde contain all kinds of mafic-ultramafic rocks, and olivine websterite and pyroxene peridotite are the most important Ni-Cu-hosted rocks. Zircon U-Pb dating suggests that the Shitoukengde Ni-Cu deposit formed in late Silurian(426–422 Ma), and their zircons have εHf(t) values of-9.4 to 5.9 with the older T_(DM1) ages(0.80–1.42 Ga). Mafic-ultramafic rocks from the No. I complex show the similar rare earth and trace element patterns, which are enriched in light rare earth elements and large ion lithophile elements(e.g., K, Rb, Th) and depleted in heavy rare earth elements and high field strength elements(e.g., Ta, Nb, Zr, Ti). Sulfides from the deposit have the slightly higher δ^(34)S values of 1.9–4.3‰ than the mantle(0 ± 2‰). The major and trace element characteristics, and Sr-Nd-Pb and Hf, S isotopes indicate that their parental magmas originated from a metasomatised, asthenospheric mantle source which had previously been modified by subduction-related fluids, and experienced significant crustal contamination both in the magma chamber and during ascent triggering S oversaturation by addition of S and Si, that resulted in the deposition and enrichment of sulfides. Combined with the tectonic evolution, we suggest that the Shitoukengde Ni-Cu deposit formed in the post-collisional, extensional regime related to the subducted oceanic slab break-off after the Wanbaogou oceanic basalt plateau collaged northward to the Qaidam Block in late Silurian. | LI Liang SUN Fengyue LI Bile LI Shijin CHEN Guangjun WANG Wei YAN Jiaming ZHAO Tuofei DONG Jun ZHANG Dexin | 2018 | Acta Geologica Sinica(English Edition)2018,92,1: | 10 |
| 3 | Influencing factors of the neurodevelopment of high-risk infants显示文摘Background High-risk infants refer to newborns exposed to high-risk factors in the prenatal, natal or postnatal period. High-risk infants are at high risk of developmental retardation, and early identification of developmental abnormalities plays a vital role in improving high-risk infants' quality of life.Aims To describe the neurodevelopment of high-risk infants aged less than 1 year old, and to analyse the incidences and influencing factors of neurodevelopmental abnormalities in order to provide a basis for neurodevelopment monitoring and management of highrisk infants.Methods High-risk infants born between January 2016 and December 2016 in the maternity and infant health hospitals of three districts in Shanghai were followed up.The Gesell Developmental Scale was used to assess the neurodevelopmental level at the time of recruitment(0-2 months) and at 9 months. Univariate and multivariate analyses of the influencing factors were conducted.Results 484 high-risk infants(male 51 %, female 49%)with an average gestation age of 36.5±2.2 weeks were recruited. At the time of recruitment, the average age was2.1(0.8) months, and the developmental quotient(DQ)scores of full-term high-risk infants in motor(t=3.542,p=0.001), cognitive(t=3.125, p=0.002), language(t=3.189, p=0.002) and social(t=3.316, p=0.001) areas were higher than those of preterm infants. The incidences of developmental abnormalities of full-term high-risk infants in motor(χ~2 =9.452, p=0.002), cognitive(χ~2=6.258, p=0.012), language(χ~2 =12.319, p =0.001) and social(χ~2 =6.811, p=0.009) areas were lower than the preterm infants. At 9 months, there was no difference in the DQ scores and incidences of developmental abnormalities in four areas between full-term and preterm high-risk infants, and the incidence of developmental abnormalities was around 10%.Conclusion The incidence of neurodevelopmental abnormalities in high-risk infants aged less than 1 year old is high. Preterm birth and parental bad habits are significant factors affecting the neurodevelopment.Monitoring and early interventions help to improve highrisk infants' neurodevelopment. | Yuan Tian Chuncao Zhang Guangjun Yu Xiangying Hu Zheng Pu Liyu Ma | 2018 | General Psychiatry2018,31,6: | 6 |
| 4 | Review of Chinese atmospheric science research over the past 70 years: Climate and climate change显示文摘Climate and climate change have always been a research focus of atmospheric sciences. This paper summaries research efforts, achievements and international contributions of the Chinese scientific community on climate and climate change over the past 70 years. The review is based on papers published officially in national or international scientific journals,and is organized to cover six aspects:(1) general climate studies;(2) impact of the Qinghai-Tibetan Plateau;(3) impact of the East Asian monsoon;(4) influences of teleconnection oscillation and westerlies;(5) climate dynamics and development of climate models;and(6) climate change. It is, however, to be noted that the present review can not be considered as an exhaustive one, since there is a huge body of literature in the field. | Jianping HUANG Wen CHEN Zhiping WEN Guangjun ZHANG Zhaoxin LI Zhiyan ZUO Qingyun ZHAO | 2019 | Science China Earth Sciences2019,62,10: | 6 |
| 5 | Global Calibration Method of Multi-sensor Vision System Using Skew Laser Lines显示文摘Multi-sensor vision system plays an important role in the 3D measurement of large objects.However,due to the widely distribution of sensors,the problem of lacking common fields of view(FOV) arises frequently,which makes the global calibration of the vision system quite difficult.The primary existing solution relies on large-scale surveying equipments,which is ponderous and inconvenient for field calibrations.In this paper,a global calibration method of multi-sensor vision system is proposed and investigated.The proposed method utilizes pairs of skew laser lines,which are generated by a group of laser pointers,as the calibration objects.Each pair of skew laser lines provides a unique coordinate system in space which can be reconstructed in certain vision sensor's coordinates by using a planar pattern.Then the geometries of sensors are computed under rigid transformation constrains by taking coordinates of each skew lines pair as the intermediary.The method is applied on both visual cameras with synthetic data and a real two-camera vision system;results show the validity and good performance.The prime contribution of this paper is taking skew laser lines as the global calibration objects,which makes the method simple and flexible.The method need no expensive equipments and can be used in large-scale calibration. | LIU Qianzhe SUN Junhua LIU Zhen ZHANG Guangjun | 2012 | Chinese Journal of Mechanical Engineering2012,25,2: | 6 |
| 6 | From Green Super Rice to green agriculture:Reaping the promise of functional genomics research显示文摘Producing sufficient food with finite resources to feed the growing global population while having a smaller impact on the environment has always been a great challenge.Here,we review the concept and practices of Green Super Rice(GSR)that have led to a paradigm shift in goals for crop genetic improvement and models of food production for promoting sustainable agriculture.The momentous achievements and global deliveries of GSR have been fueled by the integration of abundant genetic resources,functional gene discoveries,and innovative breeding techniques with precise gene and whole-genome selection and efficient agronomic management to promote resource-saving,environmentally friendly crop production systems.We also provide perspectives on new horizons in genomic breeding technologies geared toward delivering green and nutritious crop varieties to further enhance the development of green agricul-ture and better nourish the world population. | Sibin Yu Jauhar Ali Shaochuan Zhou Guangjun Ren Huaan Xie Jianlong Xu Xinqiao Yu Fasong Zhou Shaobing Peng Liangyong Ma Dingyang Yuan Zefu Li Dazhou Chen Ruifeng Zheng Zhigang Zhao Chengcai Chu Aiqing You Yu Wei Susong Zhu Qiongyao Gu Guangcun He Shigui Li Guifu Liu Changhua Liu Chaopu Zhang Jinghua Xiao Lijun Luo Zhikang Li Qifa Zhang | 2022 | Molecular Plant2022,15,1: | 6 |
| 7 | Effects of the Fhb1 gene on Fusarium head blight resistance and agronomic traits of winter wheat显示文摘The gene Fhb1 has been used in many countries to improve wheat Fusarium head blight(FHB) resistance. To make better use of this gene in the Yellow-Huai River Valleys Winter Wheat Zone(YHWZ), the most important wheat-producing region of China, it is desirable to elucidate its effects on FHB resistance and agronomic traits in different genetic backgrounds. Based on a diagnostic marker for Fhb1, six BC2 populations were developed by crossing dwarf-male-sterile(DMS)-Zhoumai 16 to three Fhb1 donors(Ningmai 9, Ningmai 13, and Jianyang 84) and backcrossing to Zhoumai 16 and Zhoumai16’s derivative cultivars(Lunxuan 136 and Lunxuan 13) using marker-assisted backcross breeding. The progenies were assessed for FHB resistance and major agronomic traits.The Fhb1 alleles were identified using the gene-specific molecular marker. The plants with the Fhb1-resistant genotype(Fhb1-R) in these populations showed significantly fewer infected spikelets than those with the Fhb1-susceptible genotype(Fhb1-S). When Lunxuan 136 was used as the recurrent parent, Fhb1-R plants showed significantly fewer infected spikelets per spike than Fhb1-R plants produced using Lunxuan 13 as the recurrent parent, indicating that the genetic backgrounds of Fhb1 influence the expression of FHB resistance. Fhb1-R plants from the DMS-Zhoumai 16/Ningmai 9//Zhoumai 16/3/Lunxuan 136 population showed the highest FHB resistance among the six populations and a significantly higher level of FHB resistance than the moderately susceptible control Huaimai 20. No significant phenotypic differences between Fhb1-R and Fhb1-S plants were observed for the eight agronomic traits investigated. These results suggest that it is feasible to improve FHB resistance of winter wheat withoutreducing yield potential by introgressing Fhb1 resistance allele into FHB-susceptible cultivars in the YHWZ. | Teng Li Hongjun Zhang Yiwen Huang Zhenqi Su Yun Deng Hongwei Liu Chunyan Mai Guangjun Yu Huili Li Liqiang Yu Tongquan Zhu Li Yang Hongjie Li Yang Zhou | 2019 | The Crop Journal2019,7,6: | 6 |
| 8 | Convective high-speed flow and field-aligned high-speed flows explored by TC-1显示文摘From June 1, 2004 to October 31, 2006, a total 465 high-speed flow events are observed by the TC-1 satellite in the near-Earth region (?13 RE < x < ?9 RE, |Y |<10 RE, |Z|<5 RE). Based on the angle between the flow and the magnetic field, the high-speed flow events are further divided into two types, that is, field-aligned high-speed flow (FAHF) in the plasma sheet boundary and convective bursty bulk flow (BBF) in the center plasma sheet. Among the total 465 high-speed flow events, there are 371 FAHFs, and 94 BBFs. The CHF are mainly concentrated in the plasma sheet, the intersection angle between the flow and the magnetic field is larger, the magnetic field intensity is relatively weak. The FHF are mainly distributed near the boundary layer of the plasma sheet, the intersection angle between the flow and magnetic field is smaller, and the magnetic field intensity is relatively strong. The convective BBFs have an important effect on the substorm. | ZHANG LingQian LIU ZhenXing MA ZhiWei W. BAUMJOHANN M.W. DUNLOP WANG GuangJun WANG Xiao H. REME C. CARR | 2008 | Chinese Science Bulletin2008,53,15: | 5 |
| 9 | Platelet membrane-based and tumor-associated platelet- targeted drug delivery systems for cancer therapy显示文摘Platelets have long been known to play critical roles in hemostasis by clumping and clotting blood vessel injuries.Recent experimental evidence strongly indicates that platelets can also interact with tumor cells by direct binding or secreting cytokines.For example,platelets have been shown to protect circulating cancer cells in blood circulation and to promote tumor metastasis.In-depth understanding of the role of platelets in cancer progression and metastasis provides promising approaches for platelet biomimetic drug delivery systems and functional platelet-targeting strategies for effective cancer treatment.This review highlights recent progresses in platelet membrane-based drug delivery and unique strategies that target tumor-associated platelets for cancer therapy. The paper also discusses future development opportunities and challenges encountered for clinical translation. | Yinlong Zhang Guangna Liu Jingyan Wei Guangjun Nie | 2018 | Frontiers of Medicine2018,12,6: | 4 |
| 10 | An ultra-low power output capacitor-less low-dropout regulator with slew-rate-enhanced circuit显示文摘An ultra-low power output-capacitorless low-dropout(LDO) regulator with a slew-rate-enhanced(SRE)circuit is introduced. The increased slew rate is achieved by sensing the transient output voltage of the LDO and then charging(or discharging) the gate capacitor quickly. In addition, a buffer with ultra-low output impedance is presented to improve line and load regulations. This design is fabricated by SMIC 0.18 μm CMOS technology. Experimental results show that, the proposed LDO regulator only consumes an ultra-low quiescent current of 1.2 μA.The output current range is from 10 μA to 200 m A and the corresponding variation of output voltage is less than 40 m V. Moreover, the measured line regulation and load regulation are 15.38 m V/V and 0.4 m V/m A respectively. | Xin Cheng Yu Zhang Guangjun Xie Yizhong Yang Zhang Zhang | 2018 | Journal of Semiconductors2018,39,3: | 4 |
| 11 | Towards intelligent design optimization: Progress and challenge of design optimization theories and technologies for plastic forming显示文摘Plastic forming is one of enabling and fundamental technologies in advanced manufacturing chains. Design optimization is a critical way to improve the performance of the forming system, exploit the advantages of high productivity, high product quality, low production cost and short time to market and develop precise, accurate, green, and intelligent(smart) plastic forming technology. However, plastic forming is quite complicated, relating to multi-physics field coupling,multi-factor influence, multi-defect constraint, and triple nonlinear, etc., and the design optimization for plastic forming involves multi-objective, multi-parameter, multi-constraint, nonlinear,high-dimensionality, non-continuity, time-varying, and uncertainty, etc. Therefore, how to achieve accurate and efficient design optimization of products, equipment, tools/dies, and processing as well as materials characterization has always been the research frontier and focus in the field of engineering and manufacturing. In recent years, with the rapid development of computing science, data science and internet of things(Io T), the theories and technologies of design optimization have attracted more and more attention, and developed rapidly in forming process. Accordingly, this paper first introduced the framework of design optimization for plastic forming. Then, focusing on the key problems of design optimization, such as numerical model and optimization algorithm,this paper summarized the research progress on the development and application of the theories and technologies about design optimization in forming process, including deterministic and uncertain optimization. Moreover, the applicability of various modeling methods and optimization algorithms was elaborated in solving the design optimization problems of plastic forming. Finally, considering the development trends of forming technology, this paper discusses some challenges of design optimization that may need to be solved and faced in forming process. | Heng LI Jingchao YANG Guangyao CHEN Xin LIU Zhao ZHANG Guangjun LI Wenhui LIU | 2021 | Chinese Journal of Aeronautics2021,34,2: | 4 |
| 12 | The recent progress of wide bandgap donor polymers towards non-fullerene organic solar cells显示文摘This review summarized the recent progress of highly efficient wide bandgap(WBG) donor polymers and their applications in non-fullerene polymer solar cells(NF-PSCs). A brief introduction of the background of WBG donor polymer developments was given. Then the research progress of the reported WBG donor polymers by classification of D-type and DààA type molecular backbones was reviewed. The resulting structure-property correlations of the WBG donor polymers were also discussed to highlight the importance of chemical modifications, which have promoted the great progress of NF-PSC field. Finally,an outlook for future innovations of WBG donor polymers and their NF-PSCs was provided. | Xiaopeng Xu Guangjun Zhang Ying Li Qiang Peng | 2019 | Chinese Chemical Letters2019,30,4: | 4 |
| 13 | Microstructure and properties of in situ synthesized TiB_2+WC reinforced composite coatings显示文摘Nickel-based composite coatings reinforced by in situ synthesized TiB2 and WC particles were deposited on stainless steel by laser cladding, and their microstructure and mechanical properties were investigated. The results show that the coatings are mainly composed of γ-Ni cellular dendrites and dispersed spherical/strip/network shaped TiB2 and equiaxial WC particles. The initial WC particles are dissolved to become fine and mostly dispersed within γ-Ni cellular dendrites. The coating prepared at a special laser energy of 0.225 kJ·mm-2 is uniform, continuous, and free of pores and cracks. With the decrease in special energy density, TiB2 phase changes from fine spherical particles which cluster together to strip shape with different morphologies and further crystallizes to form network structure, and the dispersion zone also gradually changes from intragranular to intergranular phase. The coating possesses a higher microhardness compared with the substrate, and it has a good metallurgical bond with the substrate and excellent cracking resistance. | LI Jun ZHANG Huiying LI Wenge ZHANG Guangjun | 2008 | Rare Metals2008,27,5: | 3 |
| 14 | Attenuation ofβ-Amyloid Toxicity In Vitro and In Vivo by Accelerated Aggregation显示文摘Accumulation and aggregation of β-amyloid(Aβ) peptides result in neuronal death, leading to cognitive dysfunction in Alzheimer's disease. The self-assembled Aβ molecules form various intermediate aggregates including oligomers that are more toxic to neurons than the mature aggregates, including fibrils. Thus, one strategy to alleviate Aβ toxicity is to facilitate the conversion of Aβ intermediates to larger aggregates such as fibrils. In this study, we designed a peptide named A3 that significantly enhanced the formation of amorphous aggregates of Aβ by accelerating the aggregation kinetics. Thioflavin T fluorescence experiments revealed an accelerated aggregation of Aβ monomers, accompanying reduced Aβ cytotoxicity. Transgenic Caenorhabditis elegans over-expressing amyloid precursor protein exhibited paralysis due to the accumulation of Aβ oligomers, and this phenotype was attenuated by feeding the animals with A3 peptide. These findings suggest that the Aβ aggregation-promotion effect can potentially be useful for developing strategies to reduce Aβ toxicity. | Aihua Yang Chenxuan Wang Baomin Song Wendi Zhang Yuanyuan Guo Rong Yang Guangjun Nie Yanlian Yang Chen Wang | 2017 | Neuroscience Bulletin2017,33,4: | 3 |
| 15 | Reconstruction of linkage maps in the distorted segregation populations of backcross, doubled haploid and recombinant inbred lines显示文摘Non-Mendelian segregation of markers, known as distorted segregation, is a common biological phenomenon. Although segregation distortion affects the estimation of map distances and the results of quantitative trait loci (QTL) mapping, the effects of distorted markers are often ignored in the construction of linkage maps and in QTL mapping. Recently, we have developed a multipoint method via a Hidden Markov chain method to reconstruct linkage maps in an F2 population that corrects for bias of map distances between distorted markers. In this article, the method is extended to cover backcross, doubled haploid and recombinant inbred line (RIL) populations. The results from simulated experiments show that: (1) the degree that two linked segregation distortion loci (SDL) affect the estimation of map distances increases as SDL heritability and interval length between adjacent markers increase, whereas sample size has little effect on the bias; (2) two linked SDL result in the underesti- mation of linkage distances for most cases, overestimation for an additive model with opposite additive effects, and unbiased estimation for an epistatic model with negative additive-by-additive effects; (3) the proposed method can obtain the unbiased estimation of linkage distance. This new method was applied to a rice RIL population with severely distorted segregation to reconstruct the linkage maps, and a bootstrap method was used to obtain 95% confidence intervals of map distances. The results from real data analysis further demonstrate the utility of our method, which provides a foundation for the inheritance analysis of quantitative and viability traits. | ZHU ChengSong WANG FuHua WANG JianFei LI GuangJun ZHANG HongSheng ZHANG YuanMing | 2007 | Chinese Science Bulletin2007,52,12: | 3 |
| 16 | Sensitivity of Fusarium graminearum to Carbendazim and Prochloraz显示文摘[Objective]The paper was to understand the resistance of Fusarium graminearum to carbendazim and prochloraz in the main wheat producing areas in Hubei Province.[Method] Totally 350 F. graminearum strains isolated in 2014 were determined to clear their sensitivity to carbendazim and prochloraz. [Result]All isolates were sensitive to carbendazim and prochloraz in Hubei Province,and carbendazim was still valuable in controlling Fusarium head blight. The control effect of prochloraz was better than that of carbendazim,and the combination of prochloraz and carbendazim at the proportion of 1∶ 7 received the best control effect.[Conclusion]Combination of chemical agents will occupy a more and more important position in future prevention and control against Fusarium head blight. | Ma Dongfang Huang Shi Zhang Peng Sun Cai Huang Wendi Li Guangjun Zhang Changqing Fang Zhengwu | 2017 | Plant Diseases and Pests2017,8,1: | 2 |
| 17 | A Physical Layer Algorithm for Estimation of Number of Tags in UHF RFID Anti-Collision Design显示文摘A priori knowledge of the number of tags is crucial for anti-collision protocols in slotted UHF RFID systems.The number of tags is used to decide optimal frame length in dynamic frame slotted ALOHA(DFSA)and to adjust access probability in random access protocols.Conventional researches estimate the number of tags in MAC layer based on statistics of empty slots,collided slots and successful slots.Usually,a collision detection algorithm is employed to determine types of time slots.Only three types are distinguished because of lack of ability to detect the number of tags in single time slot.In this paper,a physical layer algorithm is proposed to detect the number of tags in a collided slot.Mean shift algorithm is utilized,and some properties of backscatter signals are investigated.Simulation results verify the effectiveness of the proposed solution in terms of low estimation error with a high SNR range,outperforming the existing MAC layer approaches. | Zhong Huang Jian Su Guangjun Wen Wenxian Zheng Chu Chu Yijun Zhang Yibo Zhang | 2019 | Computers, Materials & Continua2019,,7: | 2 |
| 18 | Personalized cancer vaccines from bacteria-derived outer membrane vesicles with antibody-mediated persistent uptake by dendritic cells显示文摘Nanocarriers with intrinsic immune adjuvant properties can activate the innate immune system while delivering tumor antigen,thus efficiently facilitating antitumor adaptive immunity.Bacteria-derived outer membrane vesicles(OMVs)are an excellent candidate due to their abundance of pathogen associated molecular patterns.However,during the uptake of OMVs by dendritic cells(DCs),the interaction between lipopolysaccharide and toll-like receptor 4 induces rapid DC maturation and uptake blockage,a phenomenon we refer to as“maturation-induced uptake obstruction'(MUO).Herein we decorated OMV with the DC-targeting aDEC205 antibody(OMV-DEC),which endowed the nanovaccine with an uptake mechanism termed as 4 | Jie Liang Keman Cheng Yao Li Jiaqi Xu Yiwei Chen Nana Ma Qingqing Feng Fei Zhu Xiaotu Ma Tianjiao Zhang Yale Yue Guangna Liu Xinjing Guo Zhiqiang Chen Xinwei Wang Ruifang Zhao Ying Zhao Jian Shi Xiao Zhao Guangjun Nie | 2022 | Fundamental Research2022,2,1: | 2 |
| 19 | Broadband Cr^(3+)-sensitized upconversion luminescence of LiScSi_(2)O_(6):Cr^(3+)/Er^(3+)显示文摘Broadband sensitization is an effective strategy to enhance the upconversion luminescence(UCL) of lanthanide ions.Herein,novel UC materials LiScSi_(2)O_(6):Cr^(3+)/Er^(3+)(LSS:Cr^(3+)/Er^(3+)) were synthesized by high-temperature solid state reaction and their luminescent properties were investigated.LSS:Cr^(3+)/Er^(3+)has the broadband absorption in the spectral range of 600-800 nm,and meanwhile shows green UC emissions of Er^(3+)upon pumping Cr^(3+) by the 690 nm laser.The UCL of LSS:Cr^(3+)/Er^(3+)belongs to the twophoton process and is attributed to the energy transfer upconversion mechanism.The effects of the Cr^(3+)and Er^(3+)concentration as well as the Yb^(3+)introduction were also studied.LSS:Cr^(3+)/Yb^(3+)/Er^(3+) exhibits the interesting dual-mode UCL,capable of generating the UCL of Cr^(3+) upon pumping Yb^(3+)ions and the UCL of upon pumping Cr^(3+) ions.This research might promote the development of novel broadband Cr^(3+)-sensitized UC materials. | Yu Duan Yanqi Liu Guangjun Zhang Leqi Yao Qiyue Shao | 2021 | Journal of Rare Earths2021,39,10: | 2 |
| 20 | Variation in allelic frequencies at loci associated with kernel weight and their effects on kernel weight-related traits in winter wheat显示文摘Knowledge of allelic frequencies at loci associated with kernel weight and effects on kernel weight-related traits is crucial for yield improvement in wheat. Kernel weight-related traits were evaluated in 200 Chinese winter wheat cultivars(lines) grown at the Xinxiang Experimental Station, Chinese Academy of Agricultural Sciences, Xinxiang in Henan Province, for three consecutive years from 2014 to 2016. Alleles associated with kernel weight at nine loci, TaCKX6-D1, TaCwi-A1, TaCWI-4A, TaGS1a, TaGS5-A1, TaGS3-3A, TaGW2-6A, TaSus2-2B, and TaTGW6-A1, were determined for all cultivars(lines). ANOVA showed that genotypes, years and their interactions had significant effects on thousand-kernel weight(TKW), kernel length(KL) and kernel width(KW). The overall mean frequencies of alleles conferring high and low TKW at the nine loci were 65.9% and 33.4%, with the ranges of 37.0%–85.0% and 13.5%–63.0% for single loci. The frequencies of high-TKW alleles were over 50.0% at eight of the loci. Genotypes at each locus with the high-TKW allele had higher TKW than those with the low-TKW allele. The high-TKW allele Hap-H at the TaSus2-2B locus can be preferably used to increase grain yield due to its high TKW(49.32 g). A total of 18 main allelic combinations(ACs) at nine loci were detected. Three ACs(AC1–AC3) had significantly higher TKW than AC6 with high-TKW alleles at all nine loci even though they contained some low-TKW alleles. This indicated that other loci controlling kernel weight were present in the high-TKW cultivars. This work provides important information for parental selection and marker-assisted selection for breeding. | Teng Li Hongwei Liu Chunyan Mai Guangjun Yu Huili Li Lingzhi Meng Dawei Jian Li Yang Yang Zhou Hongjun Zhang Hongjie Li | 2019 | The Crop Journal2019,7,1: | 2 |