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| 1 | Significant Improvement of Cotton Verticillium Wilt Resistance by Manipulating the Expression of Gastrodia Anlffungal Proteins显示文摘 | Yiqin Wang Chengzhen Liang Shenjie Wu Xueyan Zhang Jiuyou Tang Guijiang Jian Gaili Jiao Fuguang Li Chengcai Chu | 2016 | Molecular Plant2016，9，10： | 8 |
| 2 | Highly efficient pure white polymer light-emitting devices based on poly(N-vinylcarbazole) doped with blue and red phosphorescent dyes显示文摘Efficient white-polymer-light-emitting devices (WPLEDs) have been fabricated with a single emitting layer containing a hole-transporting host polymer,poly(N-vinylcarbzole),and an electron-transporting auxiliary,1,3-bis[(4-tert-butylphenyl)-1,3,4-oxadiazolyl]-phenylene,codoped with two phosphorescent dyes:Iridium(III)bis (2-(4,6-difluorophenyl)-pyridinato-N,C2') picolinate (FIrpic) and home-made Ir-G2 for blue and red emission,respectively.With the structure of ITO/PEDOT:PSS 4083(40 nm)/emission layer(80 nm)/Ba(4 nm)/Al(120 nm),the device showed a maximal luminous efficiency (LE) of 13.5 cd A-1(corresponding to an external quantum efficiency (EQE) of 6.8%),and a peak power efficiency (PE) of 6.5 lm W-1 at 6.0 V.Meanwhile,the device exhibited pure white emission with Commission Internationale de l'Eclairage (CIE) coordinates of (0.34,0.35) at a current density of 12 mA cm-2,which is very close to the equi-energy white point with CIE coordinates of (0.33,0.33).The device performance can be further optimized when more balanced hole/electron injection is achieved by incorporating a lower conducting type anode buffer layer (PEDOT:PSS) and incorporating poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorenene)-alt-2,7-(9,9-dioctyfluorene)] (PFN) as an electron injection layer at the cathode.The optimized device showed an LE of 24.6 cd A-1 (with an EQE of 14.1%),while the peak power efficiency reached 12.66 lm W-1.Moreover,the WPLEDs showed good electroluminescence (EL) stability over a wide range of operating current density and luminance. | HU SuJun ZOU JianHua ZHOU GuiJiang LI DongYun WU HongBin SU ShiJian WONG Wai-Yeung YANG Wei PENG JunBiao CAO Yong | 2011 | Science China Chemistry2011，54，4： | 4 |
| 3 | Effect of boronizing temperature and time on microstructure and abrasion wear resistance of Cr12Mn2V2 high chromium cast iron显示文摘 | Chunmin Li Baoluo Shen Guijiang Li Chao Yang | 2008 | Surface & Coatings Technology2008，，24： | 1 |
| 4 | Microstructure and hardness investigation of 17-4PH stainless steel by laser quenching显示文摘 | CHEN ZHAOYUN ZHOU GUIJIANG CHEN ZHON- GHUA | 2012 | Material Science and Engineering A2012，，534： | 1 |
| 5 | Using machine learning to improve the accuracy of genomic prediction of reproduction traits in pigs显示文摘Background:Recently,machine learning(ML)has become attractive in genomic prediction,but its superiority in genomic prediction over conventional(ss)GBLUP methods and the choice of optimal ML methods need to be investigated.Results:In this study,2566 Chinese Yorkshire pigs with reproduction trait records were genotyped with the GenoBaits Porcine SNP 50 K and PorcineSNP50 panels.Four ML methods,including support vector regression(SVR),kernel ridge regression(KRR),random forest(RF)and Adaboost.R2 were implemented.Through 20 replicates of fivefold cross-validation(CV)and one prediction for younger individuals,the utility of ML methods in genomic prediction was explored.In CV,compared with genomic BLUP(GBLUP),single-step GBLUP(ssGBLUP)and the Bayesian method BayesHE,ML methods significantly outperformed these conventional methods.ML methods improved the genomic prediction accuracy of GBLUP,ssGBLUP,and BayesHE by 19.3%,15.0% and 20.8%,respectively.In addition,ML methods yielded smaller mean squared error(MSE)and mean absolute error(MAE)in all scenarios.ssGBLUP yielded an improvement of 3.8% on average in accuracy compared to that of GBLUP,and the accuracy of BayesHE was close to that of GBLUP.In genomic prediction of younger individuals,RF and Adaboost.R2_KRR performed better than GBLUP and BayesHE,while ssGBLUP performed comparably with RF,and ssGBLUP yielded slightly higher accuracy and lower MSE than Adaboost.R2_KRR in the prediction of total number of piglets born,while for number of piglets born alive,Adaboost.R2_KRR performed significantly better than ssGBLUP.Among ML methods,Adaboost.R2_KRR consistently performed well in our study.Our findings also demonstrated that optimal hyperparameters are useful for ML methods.After tuning hyperparameters in CV and in predicting genomic outcomes of younger individuals,the average improvement was 14.3% and 21.8% over those using default hyperparameters,respectively.Conclusion:Our findings demonstrated that ML methods had better overall prediction performance than conventional genomic selection methods,and could be new options for genomic prediction.Among ML methods,Adaboost.R2_KRR consistently performed well in our study,and tuning hyperparameters is necessary for ML methods.The optimal hyperparameters depend on the character of traits,datasets etc. | Xue Wang Shaolei Shi Guijiang Wang Wenxue Luo Xia Wei Ao Qiu Fei Luo Xiangdong Ding | 2022 | Journal of Animal Science and Biotechnology2022，13，5： | 1 |
| 6 | Develop ment and implementation of an integrated quality information system-a China experience显示文摘 | Xiaoqing Tang Guijiang Duan Kwai-Sang Chin | 2007 | International Journal of Advanced Manufacturing Technology2007，，32： | 1 |
| 7 | Asymmetric Tris-Heteroleptic Cyclometalated Phosphorescent Iridium(III)Complexes:An Emerging Class of Metallophosphors显示文摘CONSPECTUS:The rapid developments of cutting-edge research on photofunctional organic semiconductor materials are greatly promoting the progress of science and technology.As one of the most important organic semiconductor materials,phosphorescent iridium(III)complexes are a promising class of organometallic emitters because of their rich emissive excited states together with excellent chemical stability,which have been widely used in various fields,such as organic electroluminescence,solar cells,photo-catalysis,biosensing,bioimaging,cancer therapy,etc.The exploration of highly efficient phosphorescent iridium(III)complexes showing various structural features is blooming quickly.In general,the traditional iridium(III)phosphors usually contain at least two identical cyclometalating bidentate ligands.These iridophosphors with two identical bidentate ligands are termed as the bis-heteroleptic complex Ir((L1)2L2),where L denotes the free ligand or the deprotonated form of the free ligand.Those with three identical ligands are called homoleptic complex Ir(L)3.Recently,the iridium(III)complexes Ir(L1L2L3)supported by three different(cyclometalating)ligands are emerging as a novel and interesting category of phosphors.This class of iridophosphors usually refers to tris-heteroleptic cyclometalated phosphorescent iridium(III)complexes,and they usually show the asymmetry in their molecular structures.Compared with the case for the traditional iridium(III)phosphors,the independent ligand control provides tris-heteroleptic iridium(III)phosphors with more flexible molecular design/synthesis and excited-state fine-tuning ability,thereby resulting in more rich and appealing excited states and potential multifunctional applications.In this Account,we will highlight our recent efforts on the asymmetric tris-heteroleptic cyclometalated iridium(III)phosphors including the molecular design strategies,chemical synthesis,excited-state tuning,and structure−property relationships as well as their applications,especially in organic electroluminescence.Specifically,the molecular design of tris-heteroleptic iridium(III)phosphors focuses on the independent ligand design including the following three aspects:(1)the substituent functionalization engineering(SFE);(2)the ligand skeleton engineering(LSE);(3)the double metalation engineering(DME).For SFE,we mainly introduce the substituent based on the main-group element into the ligand of iridophosphors and also investigate the influence of the substituent position on the emissive excited states of iridophosphors.For instance,the main-group elements show unique electronic effects,which could contribute to the manipulation of the photoelectric properties of complexes(e.g.,balanced charge transport ability,improved utilization of excitons,etc.).For LSE,different types of aromatic skeleton or various lengths ofπconjugation of the ligands are also examined for the effective tuning of their excited states.For DME,the type and spatial orientation of the bridging/franking ligand will be considered.At the same time,the related optoelectronic applications(e.g.,electroluminescence,optical power limiting,etc.)of this novel class of versatile iridophosphors are also discussed.Finally,we give some perspectives on this fascinating topic and also try to provide some potential research opportunities based on the current stage of asymmetric tris-heteroleptic cyclometalated phosphorescent iridium(III)complexes.It is believed that the emerging asymmetric tris-heteroleptic cyclometalated iridophosphors will open an important avenue for designing novel metallophosphor-based materials with tunable and appealing photophysical properties,thus offering new probabilities for potential multifunctional applications. | Peng Tao Xingqiang Lü Guijiang Zhou Wai-Yeung Wong | 2022 | Accounts of Materials Research2022，3，8： | 1 |
| 8 | Developing a parameter link-age-based method for searching change propagation paths显示文摘 | YANG Fan DUAN Guijiang | 2012 | Research in Engineering Design2012，23，4： | 1 |
| 9 | Developing a parameter linkage based- method for searching change propagation paths 显示文摘 | YANG Fan DUAN Guijiang | 2012 | Research in Engineering Design2012，23，4： | 1 |
| 10 | Design and synthesis of low dipole moment chromophores:2,6-disubstitute cycloheptimidazoles显示文摘 | Guijiang Zhou Zhou Yang | 2003 | Synthetic Metals2003，137，3： | 1 |
| 11 | Petrographic and geochemical contrasts and environmentally significant trace elements in marine-influenced coal seams, Yanzhou Mining Area, China 显示文摘 | Liu Guijiang Yang Pingyue Peng Zicheng | 2007 | Journal of Asian Earth Science2007，23，4： | 1 |
| 12 | A computer integrated framework for global quality chain man- agement 显示文摘 | CHIN K S DUAN Guijiang TANG Xiaoqing | 2006 | Int J Adv ManufTechnol2006，27，： | 1 |
| 13 | Developming a parameter linkage-based method for searching change propagation paths显示文摘 | YANG Fan DUAN Guijiang | 2012 | Research in Engineering Design2012，23，4： | 1 |
| 14 | A panoramic review and vision on 'integration' for quality management显示文摘 | DUAN Guijiang CHIN K S TANG Xiaoqing | 2002 | The Asia Journal on Quality2002，3，2： | 1 |
| 15 | A panoramic review and vision on 'integration' for quality management显示文摘 | DUAN Guijiang CHIN K S TANG Xiaoqing | 2002 | The Asia Journal on Quality2002，3，2： | 1 |
| 16 | Speciation of organic and inorganic selenium inselenium-enriched rice by graphite furnace atomic absorption spectrometry after cloud point extraction 显示文摘 | Sun Mei Liu Guijiang Wu Qianghua | 2013 | Analytical Methods2013，141，： | 1 |
| 17 | Recent progress and current challenges in phosphorescent white organic light-emitting diodes (WOLEDs)显示文摘 | Guijiang Zhou Wai-Yeung Wong Si Suo | 2011 | Journal of Photochemistry & Photobiology C: Photochemistry Reviews2011，，4： | 1 |
| 18 | Silafluorene moieties as promising building blocks for constructing wide-energy-gap host materials of blue phosphorescent organic light-emitting devices显示文摘In this article, we reported the synthesis and characterization of a novel silafluorene-based host material, 1,3-bis(5-methyl-5Hdibenzo[b,d]silol-5-yl)benzene(Me-DBSi B), for blue phosphorescent organic light-emitting devices(PHOLEDs). The MeDBSi B was constructed by linking 9-methyl-9-silafluorene units to the phenyl framework through the sp3-hybridized silica atom to maintain high singlet and triplet energy, as well as to enhance thermal and photo-stability. The calculated result shows that the phenyl core does not contribute to both the highest occupied molecular orbital and lowest unoccupied molecular orbital. Wide optical energy gap of 4.1 e V was achieved. When the Me-DBSi B was used as the host and iridium(III) bis[(4,6-difluorophenyl)pyridinato-N,C2′]picolate(Firpic) as the guest, a maximum current efficiency was 14.8 cd/A, lower than the counterpart of 1,3-bis(9-carbazolyl)benzene(28 cd/A). The unbalanced barrier for electron and hole injection to host layer may be responsible for low efficiency. Even so, our results show that silafluorene moieties are promising building blocks for constructing wide-energy-gap host materials. | Dongdong Wang Qingqing Liu Yue Yu Yong Wu Xinwen Zhang Hua Dong Lin Ma Guijiang Zhou Bo Jiao Zhaoxin Wu Runfeng Chen | 2015 | Science China Chemistry2015，58，6： | 0 |
| 19 | Microstructures and Mechanical Properties of the TiC/CM247LC Nickel-Based Composite Fabricated by Selective Laser Melting:Effect of Heat Treatment显示文摘In this study,TiC/CM247LC nickel-based composite was successfully prepared by selective laser melting,then was heat treated at a solid solution temperature of 1260℃and different aging temperature of 840℃,870℃,900℃and 930℃respectively.Effects of aging temperatures on the microstructures and mechanical properties were systematically studied.The results show that the microstructures of all the heat treated samples are composed ofγmatrix,carbides andγ′phase.Theγgrains remain a columnar shape after treatments,but the size ofγ′phase grows up gradually with the increasing aging temperature.The composite treated at an aging temperature of 870℃exhibits the best mechanical properties with the tensile strength of 1073 MPa,yield strength of 1004 MPa and elongation of 7.57%.The plastic deformation and strengthening mechanisms of heat treated composite were systematically investigated. | Yuting Lv Yaojie Liu Zhe Zhang Qiang Zhang Hongyao Yu Rui Wang Guangbao Sun Guijiang Wei | 2023 | Acta Metallurgica Sinica(English Letters)2023，36，12： | 0 |
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