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Mechanisms of vacuolar phosphate efflux supporting soybean root hair growth in response to phosphate deficiency

Journal of Integrative Plant Biology 2024年第9期66卷 1983-1999页

作者： Zhong Shan yanli chu Guangfang Sun Rui Chen Jun Yan Qiwei He Yingna Liu Bin Wang Mingda Luan Wenzhi Lan School of Life Sciences Nanjing UniversityNanjing 210023China Institute of Future Agriculture Northwest A&F UniversityYangling 712100China

Phosphorus is an essential macronutrient for plant growth and *** response to phosphate(Pi)deficiency,plants rapidly produce a substitutive amount of root hairs;however,the mechanisms underlying Pi supply for root hair growth remain ***,we observed that soybean(Glycine max)plants maintain a consistent level of Pi within root hairs even under external Pi *** therefore investigated the role of vacuole-stored Pi,a major Pi reservoir in plant cells,in supporting root hair growth under Pi-deficient *** findings indicated that two vacuolar Pi efflux(VPE)transporters,GmVPE1 and GmVPE2,remobilize vacuolar stored Pi to sustain cytosolic Pi content in root hair *** analysis showed that double mutants of GmVPE1 and GmVPE2 exhibited reduced root hair growth under low Pi ***,GmVPE1 and GmVPE2 were highly expressed in root hairs,with their expression levels significantly upregulated by low Pi *** analysis revealed that GmRSL2(ROOT HAIR DEFECTIVE 6-like 2),a transcription factor involved in root hair morphogenesis,directly binds to the promoter regions of GmVPE1 and GmVPE2,and promotes their expressions under low Pi ***,mutants lacking both GmRSL2 and its homolog GmRSL3 exhibited impaired root hair growth under low Pi stress,which was rescued by overexpressing either GmVPE1 or *** together,our study has identified a module comprising vacuolar Pi exporters and transcription factors responsible for remobilizing vacuolar Pi to support root hair growth in response to Pi deficiency in soybean.

关键词： mineral deficiency remobilization root remodeling transcriptional regulation

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Water Vapor Motion Signal Extraction from FY-2E Longwave Infrared Window Images for Cloud-free Regions:The Temporal Difference Technique

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Advances in Atmospheric Sciences 2014年第6期31卷 1386-1394页

作者： YANG Lu WANG Zhenhui chu yanli ZHAO Hang TANG Min Beijing Meteorological Office (Da Xing) Collaborative Innovation Center on the Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science & Technology School of Atmospheric Physics Nanjing University of Information Science & Technology Institute of Urban Meteorology China Meteorological Administration

The aim of this study is to calculate the low-level atmospheric motion vectors （AMVs） in clear areas with FY-2E IR2 window （11.59-12.79 μm） channel imagery,where the traditional cloud motion wind technique fails.A new tracer selection procedure,which we call the temporal difference technique,is demonstrated in this *** technique makes it possible to infer low-level wind by tracking features in the moisture pattern that appear as brightness temperature （TB） differences between consecutive sequences of 30-min-interval FY-2E IR2 images over cloud-free *** TB difference corresponding to a 10％ change in water vapor density is computed with the Moderate Resolution Atmospheric Transmission （MODTRAN4） radiative transfer *** total contribution from each of the 10 layers is analyzed under four typical atmospheric conditions：tropical,midlatitude summer,***,and midlatitude *** peak level of the water vapor weighting function for the four typical atmospheres is assigned as a specific height to the TB ＂wind＂.This technique is valid over cloudfree ocean *** proposed algorithm exhibits encouraging statistical results in terms of vector difference （VD）,speed bias （BIAS）,mean vector difference （MVD）,standard deviation （SD）,and root-mean-square error （RMSE）,when compared with the wind field of NCEP reanalysis data and rawinsonde observations.

关键词： atmospheric motion vector clear sky radiative transfer temporal difference technique

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A polyimide cathode with superior stability and rate capability for lithium-ion batteries

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Nano Research 2019年第6期12卷 1355-1360页

作者： Jianghui Zhao Tuo Kang yanli chu Peng Chen Feng Jin Yanbin Shen Liwei Chen School of Nano Technology and Nano Bionics University of Science and Technology of ChinaHefei 230026China i-Lab CAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123Chin School of Chemistry and Chemical Engineering Shanghai Jiaotong UniversityShanghai 200240China

Organic-based electrode materials for lithium-ion batteries (LIBs) are promising due to their high theoretical capacity,structure versatility and environmental ***,the poor intrinsic electric conductivity of most polymers results in slow reaction kinetics and hinders their application as electrode materials for LIBs.A binder-free self-supporting organic electrode with excellent redox kinetics is herein demonstrated via in situ polymerization of a uniform thin polyimide (PI) layer on a porous and highly conductive carbonized nanofiber (CNF) *** PI active material in the porous PI@CNF film has large physical contact area with both the CNF and the electrolyte thus obtains superior electronic and ionic *** a result,the PI@CNF cathode exhibits a discharge capacity of 170 mAh·g^-1 at 1 C (175 mA·g^-1),remarkable rate-performance (70.5% of 0.5 C capacity can be obtained at a 100 C discharge rate),and superior cycling stability with 81.3% capacity retention after 1,000 cycles at 1 *** but not least,a four-electron transfer redox process of the PI polymer was realized for the first time thanks to the excellent redox kinetics of the PI@CNF electrode,showing a discharge capacity exceeding 300 mAh·g^-1 at a current of 175 mA·g^-1.

关键词： polyimide carbonized nanofibers organic electrode material rate capability lithium-ion batteries

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Evaluation and Correction of Ground-Based Microwave Radiometer Observations Based on NCEP-FNL Data

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Atmospheric and Climate Sciences 2019年第2期9卷 229-242页

作者： Qing Li Ming Wei Zhenhui Wang yanli chu Lina Ma Nanjing University of Information Science & Technology Nanjing China

Consistency between the brightness temperatures observed with a ground-based microwave radiometer and the brightness temperatures computed by forward modeling is important in many different data applications. Using the National Centers for Environmental Prediction-Final Operational Global Analysis (NCEP-FNL) dataset as a reference, the brightness temperature was obtained through the radiation transfer model for forward calculation. The problem of segmented features in long time of observational data from ground-based microwave radiometers (the so-called “jumping problem”) was identified. By analyzing the deviation and correlation between the observational bright temperature data and the forward calculated data under clear sky conditions, a revised scheme is proposed for the bright temperature observational data. Data obtained with a ground-based microwave radiometer in Beijing from January 1, 2010 to December 31, 2011 around the date of liquid nitrogen calibration show that the correlation between the observed brightness temperatures and the forward computed brightness temperatures is better after correction, especially at 28 and 30 GHz. The “jumping” problem in the observational data for the brightness temperature is eliminated after correction and the time continuity of the observational data and its consistency with the forward calculated data based on the NCEP-FNL dataset are improved. The proposed correction scheme can be used both for real-time data quality control and to improve the accuracy of historical datasets obtained with poorly calibrated microwave radiometers or radiometers working in polluted environments.

关键词： Atmospheric Remote Sensing Data Correction Forward Model Regression

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Application of WRF 3DVar to a high-resolution model over Beijing area

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Research in Cold and Arid Regions 2009年第2期1卷 135-142页

作者： ShuiYong Fan YRGuo Ming Chen JiQin Zhong yanli chu WWang XYHuang Yingchun Wang YHKuo Institute of Urban Meteorology Beijing 100089China. National Center for Atmospheric Research PO.Box 3000BoulderCO 80307USA.

To improve the weather forecasting over the Beijing area for the 2008 Olympic Games,a triple-nested(27/9/3km) WRFVar/WRF system with 3-h update cycle was *** have been done for a convective event that occurred on August 1,*** results showed that the high-resolution rapid update cycle gave a good precipitation forecast;the tunings of background error statistics(BES) and observation-error statistics in WRFVar improved the skill of the precipitation forecast;the BES for the fine domain(3 km) obtained by interpolation from its parent domain(9 km) can be used in 3 km WRFVar as a reasonable *** user can now save a great deal of work related to the derivation of the fine mesh BES from the forecast over a period of time;the rapid update cycle with 3-h frequency has satisfied the forecast,and the update cycle with 1-h frequency was not necessary.

关键词： Beijing area WRFVar WRF model high resolution rapid update cycle

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THE VIBRATIONAL BEHAVIOR OF A ROTOR SYSTEM WITH A TRANSVERSE CRACK ON THE SHAFT

THE VIBRATIONAL BEHAVIOR OF A ROTOR SYSTEM WITH A TRANSVERSE...

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The Second International Conference on Dynamics Vibration and Control

作者： yanli Lin and Fulei chu Department of Precision Instruments and Mechanology Tsinghua University Beijing 100084 China

＜正＞In a rotor system, a transverse crack on the shaft will take on distinct vibrational behavior during the rotating process. This may be helpful for detecting the existence of the crack. For the purpose of investigating the problem more clearly, we take the Jeffcott rotor model, with a disk on the middle of the shaft, a transverse crack adjacent to the disk. While the shaft rotating, the crack will change from opening to closing. This directly leads to the stiffness terms changing with time and

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Observation on anisotropy in moisture distribution with GPS during the passage of a squall line

Observation on anisotropy in moisture distribution with GPS ...

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2011年海峡两岸气象科学技术研讨会

作者： yanli chu Chaolin Zhang YingHwa Kuo John Braun Hongyan Liu Jingjiang Zhang Ju Li Constellation Observing System for Meteorology Ionosphere ＆ Climate（COSMIC） University Corporation for Atmospheric Research（UCAR）!BoulderColoradoUSA

＜正＞Slant water vapor（SWV） measurements from a ground-based global positioning system（GPS） instrument can provide accurate,high temporal-resolution and multi-directional water vapor information for moisture variation *** this study,the preliminary comparison for GPS SWV measurements against water vapor radiometer（WVR） shows that GPS SWV measurements are *** compared vertical SWV（VSWV） observations against precipitable water vapor（PWV） measurements from a GPS receiver located at the south of Beijing（54511 station） during the passage of a squall *** found that VSWV observations display more variations than PWV measurements in moisture *** also compared the temporal difference of VSWV observations between individual GPS *** found obvious spatial anisotropy in moisture distribution during the passage of the squall *** results suggest that SWV observations are very valuable in the analysis and construction of accurate moisture distribution.

关键词： Global Positioning System water vapor radiometer slant water vapor precipitable water vapor squall line

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基于缨帽变换的农田洪水淹没范围遥感信息提取

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武汉大学学报（信息科学版） 2019年第10期44卷 1560-1566页

作者：陈超何新月傅姣琪褚衍丽浙江海洋大学海洋科学与技术学院浙江舟山316022 浙江海洋大学经济与管理学院浙江舟山316022

针对灾后水中悬浮物质增多和高含水量农作物导致常规水体信息提取方法精度较低的问题,提出了一种基于缨帽变换的农田洪水淹没范围遥感信息提取方法。首先,对灾前、灾后遥感图像进行辐射定标和大气校正。其次,通过缨帽变换获取绿度分量... 详细信息

针对灾后水中悬浮物质增多和高含水量农作物导致常规水体信息提取方法精度较低的问题,提出了一种基于缨帽变换的农田洪水淹没范围遥感信息提取方法。首先,对灾前、灾后遥感图像进行辐射定标和大气校正。其次,通过缨帽变换获取绿度分量和湿度分量;然后,利用最大类间方差法对湿度分量进行分割,结合绿度分量提取水体信息;最后,叠加农田矢量数据,确定农田洪水淹没范围。以湖南省岳阳市及其附近区域为研究区,从定性和定量两个方面对方法进行精度评价。结果表明,该方法所得结果边界清晰,范围准确,生产者精度和用户精度分别为0.97和0.90。该研究能够为农田灾损评估、洪涝灾害动态监测提供参考。

关键词：缨帽变换洪水淹没范围农田精度评价

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基于卫星遥感技术的区域经济发展模型构建

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国土资源遥感 2020年第2期32卷 226-232页

作者：古海玲陈超芦莹褚衍丽浙江海洋大学海洋科学与技术学院舟山316022 浙江海洋大学经济与管理学院舟山316022

针对区域经济发展调查中传统方法费时费力、数据缺乏客观性的问题,从区域经济发展引起地球表面形态变化的角度出发,借助卫星遥感技术优势,构建模型,以便更加客观、真实地了解区域经济发展形势。首先,基于卫星遥感数据,获取不同时相地球... 详细信息

针对区域经济发展调查中传统方法费时费力、数据缺乏客观性的问题,从区域经济发展引起地球表面形态变化的角度出发,借助卫星遥感技术优势,构建模型,以便更加客观、真实地了解区域经济发展形势。首先,基于卫星遥感数据,获取不同时相地球表面形态变化和土地利用信息;其次,分析各土地利用类型与各区域经济指标之间的相关性,优选敏感因子;然后,结合社会调查数据,构建区域经济发展模型;最后,进行精度评价,以验证模型的有效性和适用性。以舟山群岛为例的研究结果表明,建设用地面积是与各经济指标相关性最强的敏感因子,与国内生产总值(gross domestic product,GDP)、第一产业总值(primary industry product,PIP)、第二产业总值(secondary industry product,SIP)和第三产业总值(tertiary industry product,TIP)的相关系数分别为0.9591,0.9390,0.9546和0.9573;遥感数据与社会调查数据相结合的区域经济发展模型简单清晰,精度较高,平均决定系数R^2为0.9795。本研究为区域经济发展预测和经济数据纠偏提供了一种新思路,为观测区域经济活动及其影响提供了一种新途径,对于了解区域经济发展,调整和修正统计数据具有实用意义。

关键词：土地利用与覆被变化卫星遥感技术区域经济发展模型构建舟山群岛

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老工业基地企业遗址改造公园成功案例

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现代农业研究 2018年第3期24卷 100-101页

作者：楚彦莉哈尔滨市香坊区中国亭园管理处 150001

哈尔滨劳动公园园内以得天独厚的丰富森林资源为特色,保留原有的起伏多变的地貌和具有改善生态环境的植被,美丽的人工湖环绕着丛林与绿地,宽阔的广场和平坦的道路错落有致的分布于园内,再现原有林地的自然风貌,是哈尔滨市区难得的生态... 详细信息

哈尔滨劳动公园园内以得天独厚的丰富森林资源为特色,保留原有的起伏多变的地貌和具有改善生态环境的植被,美丽的人工湖环绕着丛林与绿地,宽阔的广场和平坦的道路错落有致的分布于园内,再现原有林地的自然风貌,是哈尔滨市区难得的生态园林公园。

关键词：老工业基地遗址改造公园

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