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| 1 | XA23 Is an Executor R Protein and Confers Broad-Spectrum Disease Resistance in Rice显示文摘 | Chunlian Wang Xiaoping Zhang Yinglun Fan Ying Gao Qinlong Zhu Chongke Zheng Tengfei Qin Yanqiang Li Jinying Che Mingwei Zhang Bing Yang Yaoguang Liu Kaijun Zhao | 2015 | Molecular Plant2015，8，2： | 55 |
| 2 | Comparison of three evapotranspiration models with eddy covariance measurements for a Populus euphratica Oliv.forest in an arid region of northwestern China显示文摘The accurate estimation of evapotranspiration(ET) in arid regions is important for improving the water use efficiency of vegetation. Based on successive observations from May to October of 2014, we estimated the ET of a Populus euphratica Oliv. forest during the growing season in an extremely arid region using the PM(Penman-Monteith), SW(Shuttleworth-Wallace) and SSW(an improved canopy transpiration model) models. Estimated ET values were compared with those of the eddy covariance measurements. Results indicated that the actual ET of the P. euphratica forest was always overestimated by the PM model. The accuracy of the SW model was higher than that of the PM model. However, some data were not easily obtained because of the complicated structure of the SW model. The newly proposed SSW model gave the most accurate ET values, and its accuracy was higher at hourly than at daily time scale. In conclusion, the SSW model is more suitable for sparse vegetation system at large scales in extremely arid regions. | GAO Guanlong ZHANG Xiaoyou YU Tengfei LIU Bing | 2016 | Journal of Arid Land2016，8，1： | 12 |
| 3 | Ages, Trace Elements and Hf-Isotopic Compositions of Zircons from Claystones around the Permian-Triassic Boundary in the Zunyi Section, South China: Implications for Nature and Tectonic Setting of the Volcanism显示文摘证据的成长身体证明二叠三叠纪的边界(PTB ) 附近的那个火山作用可能在触发 PermianTriassic (PTr ) 是关键的集体扑灭。因此,在华南的 PTB 附近的灰床可以在这个事件上带信息。三暴烈的灰层,改变了到泥土,在在 Zunyi 节的 PTB 床上的 outcropped,贵州省,西南中国。从这三张灰床的锆石谷物的 U-Pb 年龄,踪迹元素,和 Hf 同位素作文用 LA-ICPMS 和 LA-MC-ICPMS 被分析。锆石主要除了二 inherited/xenocrystic 锆石(939 和 2 325 妈) 是在起源(241-279 妈) 的 magmatic。这些 magmatic 锆石的年龄显示发生在中间附近的 magmatism 的三个事件 -- 晚二叠的边界(~ 261.5 妈, MLPB ) , Wuchiapingian-Changhsingian 边界(~ 254.5 妈, WCB ) ,并且 PTB (~ 250.5 妈) 分别地。MLPB 和 WCB 附近的 magmatism 的开始的二个事件可以被归因于 magmatic 继承或重新免职。所有 magmatic 锆石分享类似的踪迹元素和 Hf 同位素作文。他们有 Y, Hf, Th 和 U 内容和 Nb/Ta 比率典型地代表从硅的计算碱的岩浆的锆石。这些锆石也与 -11.4 的 Hf (t) 价值展出充实的 Hf 同位素作文到 +0.2,它建议三个 magmatic 事件涉及大陆人外壳融化。更多的充实的 Hf 同位素作文(床 ZY13 的 Hf (t)=-11.4--4.8)(~ 250.5 妈) 在岩浆暗示古老的外壳的材料的更多的输入。magmatic 锆石的 Hf 同位素和踪迹元素作文的集成建议 magmatism 的这三个事件可以由于 Palaeo-Tethys 海洋的闭合沿着会聚的大陆边缘发生在或在西南的华南附近。 | Qiuling Gao Zhong-Qiang Chen Ning Zhang William L.Griffin Wenchen Xia Guoqing Wang Tengfei Jiang Xuefei Xia Suzanne Y.O'Reilly | 2015 | Journal of Earth Science2015，26，6： | 8 |
| 4 | Evapotranspiration of a Populus euphratica forest during the growing season in an extremely arid region of northwest China using the Shuttleworth–Wallace model显示文摘Thus far, measurements and estimations of actual evapotranspiration(ET) in extremely arid areas are still insufficient. Based on successive observations from June–September 2014, we simulated ET of a Populus euphratica Oliv. forest during the growing season in an extremely arid region of northwest China using the Shuttleworth–Wallace(S–W) model. Simulated ET values were compared to those of the eddy-covariance(EC) method on a 1 h interval. With a root mean square error(RMSE),relative error(RE) and mean absolute error(MAE) of0.192, 3.100 and 0.165 mm h-1, respectively, model performance was not satisfactory. In particular, on days with strong winds(Sep. 11–13), deviations between simulated and observed ET values increased to 0.275, 0.878 and0.251 mm h-1, RMSE, RE and MAE respectively. These values were significantly greater than those in other study periods and were most likely owing to sharp increases in wind speed. As a result, there were substantial advective effects, which is not consistent with the assumption of the S–W model that there are no advective effects or mesoscale circulation patterns induced by surface discontinuities. | Guanlong Gao Xiaoyou Zhang Tengfei Yu | 2016 | Journal of Forestry Research2016，27，4： | 6 |
| 5 | Discrimination of False Negative Results in RT-PCR Detection of SARS-CoV-2 RNAs in Clinical Specimens by Using an Internal Reference显示文摘Reverse transcription-polymerase chain reaction(RT-PCR)is an essential method for specific diagnosis of SARS-CoV-2 infection.Unfortunately,false negative test results are often reported.In this study,we attempted to determine the principal causes leading to false negative results of RT-PCR detection of SARS-CoV-2 RNAs in respiratory tract specimens.Multiple sputum and throat swab specimens from 161 confirmed COVID-19 patients were tested with a commercialfluorescent RT-PCR kit targeting the ORF1 ab and N regions of SARS-CoV-2 genome.The RNA level of a cellular housekeeping gene ribonuclease P/MRP subunit p30(RPP30)in these specimens was also assessed by RT-PCR.Data for a total of 1052 samples were retrospectively re-analyzed and a strong association between positive results in SARS-CoV-2 RNA tests and high level of RPP30 RNA in respiratory tract specimens was revealed.By using the ROC-AUC analysis,we identified Ct cutoff values for RPP30 RT-PCR which predicted false negative results for SARS-CoV-2 RT-PCR with high sensitivity(95.03%–95.26%)and specificity(83.72%–98.55%)for respective combination of specimen type and ampli-fication reaction.Using these Ct cutoff values,false negative results could be reliably identified.Therefore,the presence of cellular materials,likely infected host cells,are essential for correct SARS-CoV-2 RNA detection by RT-PCR in patient specimens.RPP30 could serve as an indicator for cellular content,or a surrogate indicator for specimen quality.In addition,our results demonstrated that false negativity accounted for a vast majority of contradicting results in SARS-CoV-2 RNA test by RT-PCR. | Yafei Zhang Changtai Wang Mingfeng Han Jun Ye Yong Gao Zhongping Liu Tengfei He Tuantuan Li Mengyuan Xu Luping Zhou Guizhou Zou Mengji Lu Zhenhua Zhang | 2020 | Virologica Sinica2020，35，6： | 5 |
| 6 | Deep feature extraction and motion representation for satellite video scene classification显示文摘Satellite video scene classification(SVSC)is an advanced topic in the remote sensing field,which refers to determine the video scene categories from satellite videos.SVSC is an important and fundamental step for satellite video analysis and understanding,which provides priors for the presence of objects and dynamic events.In this paper,a two-stage framework is proposed to extract spatial features and motion features for SVSC.More specifically,the first stage is designed to extract spatial features for satellite videos.Representative frames are firstly selected based on the blur detection and spatial activity of satellite videos.Then the fine-tuned visual geometry group network(VGG-Net)is transferred to extract spatial features based on spatial content.The second stage is designed to build motion representation for satellite videos.The motion representation of moving targets in satellite videos is first built by the second temporal principal component of principal component analysis(PCA).Second,features from the first fully connected layer of VGG-Net are used as high-level spatial representation for moving targets.Third,a small network of long and short term memory(LSTM)is further designed for encoding temporal information.Two-stage features respectively characterize spatial and temporal patterns of satellite scenes,which are finally fused for SVSC.A satellite video dataset is built for video scene classification,including 7209 video segments and covering 8 scene categories.These satellite videos are from Jilin-1 satellites and Urthecast.The experimental results show the efficiency of our proposed framework for SVSC. | Yanfeng GU Huan LIU Tengfei WANG Shengyang LI Guoming GAO | 2020 | Science China(Information Sciences)2020，63，4： | 4 |
| 7 | Alternate binding modes of anti-CRISPR viral suppressors AcrF1/2 to Csy surveillance complex revealed by cryo-EM structures显示文摘抗菌素编码 anti-CRISPR suppressors 抵抗他们的细菌的主人的 CRISPR/Cas 免疫,因此便于他们的幸存和复制。以前的研究显示出那二编码噬菌体的 anti-CRISPR 蛋白质, AcrF1 和 AcrF2,如果由由 Csy 监视建筑群阻止目标 DNA 识别的 Pseudomonas aeruginosa 的 CRISPR/Cas 系统,而是精确位于下面机制是未知的,压制类型。这里我们在场 Csy 建筑群一定的 AcrF1/2 的结构由 cryo 他们决定了单个粒子的重建。由结构的分析,我们发现 AcrF1 由防碍在 DNA 目标海滨和 crRNA 分隔符之间的基础配对禁止 Csy 建筑群的目标 DNA 识别。另外,当个别地工作或与 AcrF2 合作时, AcrF1 的多重拷贝与不同模式绑在 Csy 建筑群,它可能排除通过不同机制有约束力的目标 DNA。和以前的报告,我们为二 anti-CRISPR suppressors, AcrF1 和 AcrF2 提供一种全面工作情形,它由指向 Csy 监视建筑群的沉默 CRISPR/Cas 免疫。 | Ruchao Peng Ying Xu Tengfei Zhu Ningning Li Jianxun Qi Yan Chai Min Wu Xinzheng Zhang Yi Shi Peiyi Wang Jiawei Wang Ning Gao George Fu Gao | 2017 | Cell Research2017，27，7： | 3 |
| 8 | Enhancing oxygen evolution reaction by cationic surfactants显示文摘Oxygen evolution reaction is critical for water splitting or metal-air batteries,but previous research mainly focuses on electrode material or structure optimization.Herein,we demonstrate that surfactant modification of a NiFe layered double hydroxide (LDH) array electrode,one of the best catalysts for oxygen evolution reaction (OER),could achieve superaerophobic surface with balanced surface charges,affording fast mass transfer,quick gas release,and boosted OER performance.The assembled surfactants on the electrode surface are responsible for lowering the bubble adhesive force (~ 1.03 μN) and corresponding fast release of small bubbles generated during OER.In addition,the bipolar nature of the hexadecyl trimethyl ammonium bromide (CTAB) molecule lead to bilayer assembly of the surfactants with the polar ends facing the electrode surface and the electrolyte,resulting in neutralized charges on the electrode surface.As a result,OH-transfer was facilitated and OER performance was enhanced.With the modified superaerophobic surface and balanced surface charge,NiFe LDHs-CTAB nanostructured electrode showed ultrahigh current density increase (9.39 mA(mV·cm^2)),2.3 times higher than that for conventional NiFe LDH nanoarray electrode),dramatically fast gas release,and excellent durability.The introduction of surfactants to construct under-water superaerophobic electrode with in-time repelling ability to the as-formed gas bubbles may open up a new pathway for designing efficient electrodes for gas evolution systems with potentially practical application in the near future. | Qixian Xie Daojin Zhou Pengsong Li Zhao Cai Tianhui Xie Tengfei Gao Ruida Chen Yun Kuang Xiaoming Sun | 2019 | Nano Research2019，12，9： | 3 |
| 9 | Natural variations of ZmSRO1d modulate the trade-off between drought resistance and yield by affecting ZmRBOHC-mediated stomatal ROS production in maize显示文摘While crop yields have historically increased,drought resistance has become a major concern in the context of global climate change.The trade-off between crop yield and drought resistance is a common phenomenon;however,the underlying molecular modulators remain undetermined.Through genome-wide association study,we revealed that three non-synonymous variants in a drought-resistant allele of ZmSRO1d-R resulted in plasma membrane localization and enhanced mono-ADP-ribosyltransferase activity of ZmSRO1d toward ZmRBOHC,which increased reactive oxygen species(ROS)levels in guard cells and promoted stomatal closure.ZmSRO1d-R enhanced plant drought resilience and protected grain yields under drought conditions,but it led to yield drag under favorable conditions.In contrast,loss-of-function mutants of ZmRBOHC showed remarkably increased yields under well-watered conditions,whereas they showed compromised drought resistance.Interestingly,by analyzing 189 teosinte accessions,we found that the ZmSRO1d-R allele was present in teosinte but was selected against during maize domestication and modern breeding.Collectively,our work suggests that the allele frequency reduction of ZmSRO1d-R in breeding programs may have compromised maize drought resistance while increased yields.Therefore,introduction of the ZmSRO1d-R allele into modern maize cultivars would contribute to food security under drought stress caused by global climate change. | Huajian Gao Junjun Cui Shengxue Liu Shuhui Wang Yongyan Lian Yunting Bai Tengfei Zhu Haohao Wu Yijie Wang Shiping Yang Xuefeng Li Junhong Zhuang Limei Chen Zhizhong Gong Feng Qin | 2022 | Molecular Plant2022，15，10： | 2 |
| 10 | Highly efficient and stable solar-powered desalination by tungsten carbide nanoarray film with sandwich wettability显示文摘Solar-powered desalination is a promising way to resolve the worldwide water crisis for its low con- sumption and simple facility. Considering the fragility and aggregations of traditional materials, which may decrease efficiency, we herein introduce a robust tungsten carbide (WC) nanoarray film as a stable and efficient photothermal material, whose absorption is over 97.5% throughout almost the whole solar spectrum range (220–2200 nm) due to nanoarray structure and thus enhanced localized surface plasmon resonance. Besides, for the first time, we modified the film with sandwich wettability. It accelerates evap- oration by reducing water’s reflection of light, enlarging hydrophobic-hydrophilic boundaries, and depressing heat dissipation. Combining high absorption with unique wettability, the WC nanoarray film offers high solar-to-vapor efficiency of 90.8% and produces drinking water at the rate of (1.06 ± 0.10) kg m^(-2)h^(-1)from man-made seawater and (0.98 ± 0.18) kg m^(-2)h^(-1)from heavy metal sewage under one sun (AM 1.5) while 98% performance remains after 1 h×100 times’ reutilization. | Nana Han Kai Liu Xinping Zhang Meng Wang Pan Du Zhaohui Huang Daojin Zhou Qian Zhang Tengfei Gao Yin Jia Liang Luo Jianjun Wang Xiaoming Sun | 2019 | Science Bulletin2019，64，6： | 2 |
| 11 | On the room-temperature tensile deformation behavior of a cast dual-phase high-entropy alloy CrFeCoNiAl_(0.7)显示文摘The microstructure and room-temperature tensile deformation behavior of the cast CrFeCoNiAl0.7 high-entropy alloy(HEA)were studied in details.The cast HEA consisted of a dual-phase structure of 77.3 vol.%face-centered-cubic(FCC)phase plus 22.7 vol.%B2 phase,and exhibited excellent room-temperature tensile properties with a high yield strength of 876 MPa,ultimate tensile strength of 1198 MPa and a relatively large elongation to fracture of~9%.Dislocations gliding in the FCC phase governed the plastic deformation at the early stage of room-temperature tensile,and disordered dislocations were to form dislocation walls as the deformation proceeded.With further increase in strain to a high level,the stacking faults were generated through the dissociation of the geometrically necessary dislocations,serving as the potential heterogeneous nucleation sites for the deformation twins. | Qiang Wang Liangcai Zeng Tengfei Gao Hui Du Xinwang Liu | 2021 | Journal of Materials Science & Technology2021，，28： | 2 |
| 12 | A reactive oxygen species-responsive hydrogel encapsulated with bone marrow derived stem cells promotes repair and regeneration of spinal cord injury显示文摘Spinal cord injury(SCI)is an overwhelming and incurable disabling event accompanied by complicated inflammation-related pathological processes,such as excessive reactive oxygen species(ROS)produced by the infiltrated inflammatory immune cells and released to the extracellular microenvironment,leading to the widespread apoptosis of the neuron cells,glial and oligodendroctyes.In this study,a thioketal-containing and ROS-scavenging hydrogel was prepared for encapsulation of the bone marrow derived mesenchymal stem cells(BMSCs),which promoted the neurogenesis and axon regeneration by scavenging the overproduced ROS and re-building a regenerative microenvironment.The hydrogel could effectively encapsulate BMSCs,and played a remarkable neuroprotective role in vivo by reducing the production of endogenous ROS,attenuating ROS-mediated oxidative damage and downregulating the inflammatory cytokines such as interleukin-1 beta(IL-1β),interleukin-6(IL-6)and tumor necrosis factor-alpha(TNF-α),resulting in a reduced cell apoptosis in the spinal cord tissue.The BMSCs-encapsulated ROS-scavenging hydrogel also reduced the scar formation,and improved the neurogenesis of the spinal cord tissue,and thus distinctly enhanced the motor functional recovery of SCI rats.Our work provides a combinational strategy against ROS-mediated oxidative stress,with potential applications not only in SCI,but also in other central nervous system diseases with similar pathological conditions. | Ziming Li Tengfei Zhao Jie Ding Haochen Gu Qiaoxuan Wang Yifan Wang Deteng Zhang Changyou Gao | 2023 | Bioactive Materials2023，，1： | 2 |
| 13 | Promoting electrochemical conversion of CO2 to formate with rich oxygen vacancies in nanoporous tin oxides显示文摘Defect engineering,especially oxygen vacancies(O-vacancies) introduction into metal oxide materials has been proved to be an effective strategy to manipulate their surface electron exchange processes.However,quantitative investigation of O-vacancies on CO2 electroreduction still remains rather ambiguous.Herein,a series of nanoporous tin oxide(SnOx) materials have been prepared by thermal treatment at various temperatures and reaction conditions.The annealing temperature dependent Ovacancies property of the SnOx was revealed and attributed to the balance tunning of the desorption of oxygen species and the continous oxidation of SnOx.The as-prepared nanoporous SnOx with 300℃treatment was found to be highest O-vacant material and showed an impressive CO2 RR activity and selectivity towards the conversion of CO2 into formic acid(up to 88.6%),and superior HCOOH incomplete current density to other samples.The ideal performance of the O-vacancies rich SnOx-300 material can be ascribed to the high delocalized electron density inducing much enhanced adsorption of CO2 with O binding and benefiting the subsequent reduction with high selectively forming of formic acid. | Tengfei Gao Anuj Kumar Zhicheng Shang Xinxuan Duan Hangchao Wang Shiyuan Wang Shengfu Ji Dongpeng Yan Liang Luo Wen Liu Xiaoming Sun | 2019 | Chinese Chemical Letters2019，30，12： | 2 |
| 14 | Damage evolution of yttria-stabilized zirconia induced by He irradiation显示文摘 | Tengfei Yang Xuejun Huang Yuan Gao Chenxu Wang Yanwen Zhang Jianming Xue Sha Yan Yugang Wang | 2011 | Journal of Nuclear Materials2011，，1： | 1 |
| 15 | Irradiation effects on multilayered W/ZrO 2 film under 4MeV Au ions显示文摘 | Hongwei Wang Yuan Gao Engang Fu Tengfei Yang Jianming Xue Sha Yan Paul K. Chu Yugang Wang | 2014 | 2014 (1-3)2014，，1： | 1 |
| 16 | Green‑Solvent Processed Blade‑Coating Organic Solar Cells with an Efficiency Approaching 19%Enabled by Alkyl‑Tailored Acceptors显示文摘Power-conversion-efficiencies(PCEs)of organic solar cells(OSCs)in laboratory,normally processed by spin-coating technology with toxic halogenated solvents,have reached over 19%.However,there is usually a marked PCE drop when the bladecoating and/or green-solvents toward large-scale printing are used instead,which hampers the practical development of OSCs.Here,a new series of N-alkyl-tailored small molecule acceptors named YR-SeNF with a same molecular main backbone are developed by combining selenium-fused central-core and naphthalene-fused endgroup.Thanks to the N-alkyl engineering,NIR-absorbing YR-SeNF series show different crystallinity,packing patterns,and miscibility with polymeric donor.The studies exhibit that the molecular packing,crystallinity,and vertical distribution of active layer morphologies are well optimized by introducing newly designed guest acceptor associated with tailored N-alkyl chains,providing the improved charge transfer dynamics and stability for the PM6:L8-BO:YRSeNF-based OSCs.As a result,a record-high PCE approaching 19%is achieved in the blade-coating OSCs fabricated from a greensolvent o-xylene with high-boiling point.Notably,ternary OSCs offer robust operating stability under maximum-power-point tracking and well-keep>80%of the initial PCEs for even over 400 h.Our alkyl-tailored guest acceptor strategy provides a unique approach to develop green-solvent and blade-coating processed high-efficiency and operating stable OSCs,which paves a way for industrial development. | Hairui Bai Ruijie Ma Wenyan Su Top Archie Dela Pea Tengfei Li Lingxiao Tang Jie Yang Bin Hu Yilin Wang Zhaozhao Bi Yueling Su Qi Wei Qiang Wu Yuwei Duan Yuxiang Li Jiaying Wu Zicheng Ding Xunfan Liao Yinjuan Huang Chao Gao Guanghao Lu Mingjie Li Weiguo Zhu Gang Li Qunping Fan Wei Ma | 2023 | Nano-Micro Letters2023，15，12： | 1 |
| 17 | Improving Dendritic Neuron Model With Dynamic Scale-Free Network-Based Differential Evolution显示文摘Some recent research reports that a dendritic neuron model(DNM)can achieve better performance than traditional artificial neuron networks(ANNs)on classification,prediction,and other problems when its parameters are well-tuned by a learning algorithm.However,the back-propagation algorithm(BP),as a mostly used learning algorithm,intrinsically suffers from defects of slow convergence and easily dropping into local minima.Therefore,more and more research adopts non-BP learning algorithms to train ANNs.In this paper,a dynamic scale-free network-based differential evolution(DSNDE)is developed by considering the demands of convergent speed and the ability to jump out of local minima.The performance of a DSNDE trained DNM is tested on 14 benchmark datasets and a photovoltaic power forecasting problem.Nine meta-heuristic algorithms are applied into comparison,including the champion of the 2017 IEEE Congress on Evolutionary Computation(CEC2017)benchmark competition effective butterfly optimizer with covariance matrix adapted retreat phase(EBOwithCMAR).The experimental results reveal that DSNDE achieves better performance than its peers. | Yang Yu Zhenyu Lei Yirui Wang Tengfei Zhang Chen Peng Shangce Gao | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，1： | 1 |
| 18 | Enriched endoplasmic reticulum-mitochondria interactions result in mitochondrial dysfunction and apoptosis in oocytes from obese mice显示文摘Background: Maternal obesity alters oocytes and subsequent fetal metabolism. An increasing number of studies have shown that the endoplasmic reticulums(ER) or mitochondria have important effects on oocyte quality, but there has been no study of the effect of mitochondria-associated ER membranes(MAMs) on oocyte quality. The present study was designed to assess whether the level of MAM and MAM-related proteins were different in oocytes from obese and control mice.Results: First, oocytes from mice with high-fat-diet(HFD)-induced obesity had higher levels(either greater numbers or a higher proportion for the same numbers) of MAM than oocytes from control mice. The abundance of MAM-related proteins in oocytes from obese mice was significantly greater at both the messenger RNA and protein levels, including inositol 1,4,5-trisphosphate receptor, type 1(IP3R1), inositol 1,4,5-trisphosphate receptor,type 2(IP3 R2) and phosphofurin acidic cluster sorting protein 2(PACS-2). Further, there was an increase in mitochondrial Ca^(2+)([Ca^(2+)]_m) which was associated with increased apoptosis and compromised cytoplasmic maturation in oocytes from obese mice. Down-regulation of MAM-related protein IP3R1 in oocytes from obese mice decreased [Ca^(2+)]_mand apoptosis and improved cytoplasmic maturation but did not reduce the overal MAM level. However, down-regulating MAM-related protein PACS-2 in oocytes from obese mice did reduce the level of MAM and [Ca^(2+)]_m, which decreased the rate of apoptosis and improved cytoplasmic maturation of oocytes from obese mice.Conclusions: It is possible that enriched MAM could increase [Ca^(2+)]_m, and this increase has been found to be associated with increased apoptosis and compromised cytoplasmic maturation in oocytes from obese mice. This finding suggests a novel therapeutic target for obesity-induced oocyte defects. | Lihong Zhao Tengfei Lu Lei Gao Xiangwei Fu Shien Zhu Yunpeng Hou | 2018 | Journal of Animal Science and Biotechnology2018，9，1： | 1 |
| 19 | An improved binocular localization method for apple based on fruit detection using deep learning显示文摘Apple picking robot is now being developed as an alternative to hand picking due to a great demand for labor during apple harvest season.Accurate detection and localization of target fruit is necessary for robotic apple picking.Detection accuracy has a great influence on localization results.Although current researches on detection and localization of apples using traditional image algorithms can obtain good results under laboratory conditions,it is difficult to accurately detect and locate objects in natural field with complex environments.With the rapid development of artificial intelligence,accuracy of apple detection based on deep learning has been significantly improved.Therefore,a deep learningbased method was developed to accurately detect and locate the position of fruit.For different localization methods,binocular localization is a widely used localization method for its bionic principle and lower equipment cost.Hence,this paper proposed an improved binocular localization method for apple based on fruit detection using deep learning.First,apples of binocular images were detected by Faster R-CNN.After that,a segmentation based on chromatic aberration and chromatic aberration ratio was applied to segment apple and background pixels in bounding box of detected fruit.Furthermore,template matching with parallel polar line constraint was used to match apples in left and right images.Finally,two feature points on apples were selected to directly calculate three dimensional coordinates of feature points with the binocular localization principle.In this study,Faster R-CNN achieved an AP of 88.12%with an average detection speed of 0.32 s for an image.Meanwhile,standard deviation and localization precision of depth of two feature points on each apple were calculated to evaluate localization.Results showed that the average standard deviation and the average localization precision of 76 groups of datasets were 0.51 cm and 99.64%,respectively.Results indicated that the proposed improved binocular localization method is promising for fruit localization。 | Tengfei Li Wentai Fang Guanao Zhao Fangfang Gao Zhenchao Wu Rui Li Longsheng Fu Jaspreet Dhupia | 2023 | Information Processing in Agriculture2023，10，2： | 1 |
| 20 | An improved keyframe extraction methed based on HSV colour space显示文摘 | ZHONG Q U LIN Lidan GAO Tengfei | 2013 | Journal of Software2013，8，7： | 1 |
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