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| 1 | 基于SPOT遥感数据的甘蔗叶面积指数反演和产量估算显示文摘利用SPOT遥感数据进行甘蔗叶面积指数LAI反演,建立最佳NDVI-LAI反演模型,同时结合不同生育期甘蔗叶面积指数的时序变化规律,建立各生育期甘蔗叶面积指数LAI与产量的相关关系,得到甘蔗叶面积指数LAI-产量最佳估产模型。在验证甘蔗叶面积指数LAI的基础上,利用遥感反演的甘蔗叶面积指数LAI进行甘蔗单产估算。结果表明:甘蔗叶面积指数LAI与NDVI之间存在显著的正相关关系,全生育期二者的相关性最高,以二次函数模型拟合效果最佳,决定系数R2为0.842 9。将遥感数据反演得到的平均叶面积指数LAI数据代入甘蔗叶面积LAI-产量模型得到全县平均单产,与统计数据相比,相对误差仅为2.6%。说明该模型具有较好的估产效果,可以为甘蔗区域估产提供重要参考。 | 何亚娟 潘学标 裴志远 马尚杰 Heather McNirn Jiali Shang | 2013 | 农业机械学报2013，44，5： | 36 |
| 2 | Comparison of light absorption and oxidative potential of biodiesel/diesel and chemicals/diesel blends soot particles显示文摘Soot particles,mainly coming from fuel combustion,affect climate forcing through absorbing light and also result in adverse human health outcomes.Though biodiesel or additives blending with diesel was considered environmentally friendly,the understanding on absorbing and oxidative capacity of soot emitted from them are still unclear.The watersoluble organic carbon(WSOC)content,surface chemical structure,light absorption and oxidative potential(OPDTT)of soot from biodiesel/diesel and chemicals/diesel blends were investigated utilizing total organic carbon analyzer,X-ray photoelectron spectrometer,ultraviolet–visible spectrophotometry and dithiothreitol(DTT)assay.The differences and correlations between soot properties were statistically analyzed.Chemicals/diesel blends soot owned significantly higher WSOC content,ratio of mass absorbing efficiency(MAE)in250 and 365 nm(E2/E3),OPDTT,and higher surface carbonyl content.Coconut biodiesel/diesel blends soot contained evidently higher aromatic carbon–oxygen single bond(ArC–O)content,and higher MAE365.The individual comparison of biodiesel/diesel blends showed20%coconut biodiesel blend owned the lowest WSOC,E2/E3 and OPDTT,while highest ArC–O and MAE365,representing strongest absorbing properties.Association analysis showed OPDTTwas significantly positively correlated with WSOC.Further,the evident negative correlation between MAE365 and OPDTT was observed.Our results showed coconut biodiesel/diesel blends soot induced lower levels of oxidative potential,whereas absorption of light was higher,which have far reaching consequences on climate forcing.Therefore,it is important to evaluate the balance point between light-absorbing properties and oxidative potential,under the wide use of biodiesel. | Yu Kuang Yi Guo Jiaqi Chai Jing Shang Jiali Zhu Svetlana Stevanovic Zoran Ristovski | 2020 | Journal of Environmental Sciences2020，32，1： | 2 |
| 3 | Detecting winter canola(Brassica napus) phenological stages using an improved shape-model method based on time-series UAV spectral data显示文摘Accurate information about phenological stages is essential for canola field management practices such as irrigation, fertilization, and harvesting. Previous studies in canola phenology monitoring focused mainly on the flowering stage, using its apparent structure features and colors. Additional phenological stages have been largely overlooked. The objective of this study was to improve a shape-model method(SMM) for extracting winter canola phenological stages from time-series top-of-canopy reflectance images collected by an unmanned aerial vehicle(UAV). The transformation equation of the SMM was refined to account for the multi-peak features of the temporal dynamics of three vegetation indices(VIs)(NDVI, EVI, and CI). An experiment with various seeding scenarios was conducted, including four different seeding dates and three seeding densities. Three mathematical functions: asymmetric Gaussian function(AGF), Fourier function, and double logistic function, were employed to fit timeseries vegetation indices to extract information about phenological stages. The refined SMM effectively estimated the phenological stages of canola, with a minimum root mean square error(RMSE) of 3.7 days for all phenological stages. The AGF function provided the best fitting performance, as it captured multiple peaks in the growth dynamics characteristics for all seeding date scenarios using four scaling parameters. For the three selected VIs, CIred-edgeachieved the greatest accuracy in estimating the phenological stage dates. This study demonstrates the high potential of the refined SMM for estimating winter canola phenology. | Chao Zhang Zi’ang Xie Jiali Shang Jiangui Liu Taifeng Dong Min Tang Shaoyuan Feng Huanjie Cai | 2022 | The Crop Journal2022，10，5： | 1 |
| 4 | Impact of intensity variability of the Asian summer monsoon anticyclone on the chemical distribution in the upper troposphere and lower stratosphere显示文摘亚洲夏季风期,平流层-对流层物质交换过程能显著影响上对流层下平流层化学成分的浓度变化和空间分布.然而,亚洲夏季风反气旋强度的季节内变化对其内部和周围地区化学成分水平分布的影响尚不清楚.本文将亚洲夏季风反气旋划分为季节内强周期和弱周期,发现当亚洲夏季风反气旋更强时,100 hPa O_(3)低值区的面积更大,O_(3)浓度更低.但是这种影响主要体现在6月份,7,8月的O_(3)水平分布还受东南亚地区深对流的影响.这些结果表明亚洲夏季风反气旋强度和深对流的季节内变化可以显著影响亚洲夏季风期上对流层下平流层的化学分布. | Kecheng Peng Jiali Luo Jiayi Mu Xiaoqun Cao Hongying Tian Lin Shang Yanan Guo | 2022 | Atmospheric and Oceanic Science Letters2022，15，3： | 0 |
| 5 | IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI显示文摘The antifungal effectiveness of extracts of five medicinal plant species was determined.The inhibitory activity of extracts of Eucalyptus tereticornis,Xanthium sibiricum,Artemisia argyi,Tupistra chinensis and Pyrola calliantha were evaluated against the mycelial growth of the plant pathogenic fungi Aspergillus niger,Botrytis cinerea,Penicillium digitatum,P.expansum,P.italicum and Rhizopus stolonifer.All plant extracts were prepared at 60°C using solvents(either water,50%ethanol(v/v),95%ethanol(v/v),ethyl acetate or petroleum ether).Fungicidal effects of all plants tested were confirmed.Different extracts from the same plant species gave different degrees of inhibition.All aqueous extracts had weak or no activity on all fungi tested.Ethyl acetate and 95%ethanol extracts from T.chinensis rhizomes gave greater inhibition and a broader spectrum inhibition than the other extracts.T.chinensis may have potential as a new natural fungicide and may be used for the preservation of agricultural and forestry products such as fruits and vegetables. | Shufeng YAO Jiali XU Haibo ZHANG Hong GAO Shibin SHANG Dan WANG | 2021 | Frontiers of Agricultural Science and Engineering2021，8，4： | 0 |
| 6 | Prevalence and risk factors for minimal hepatic encephalopathy in cirrhotic patients with different etiologies显示文摘Aims:Minimal hepatic encephalopathy(MHE)significantly affects the prognosis of patients with cirrhosis.This study was performed to determine whether there is a difference in the prevalence of MHE among patients with cirrhosis of different etiologies and whether the etiology directly influences the occurrence of MHE.Methods:This multicenter,cross-sectional study enrolled 1879 patients with confirmed cirrhosis at 40 hospitals from October 25,2021,to January 10,2023(Trial registration:https://clinicaltrials.gov/[NCT05140837]).The patients'demographics,etiologies of cirrhosis,and laboratory test results were collected.The psychometric hepatic encephalopathy score(PHES)was determined in all patients to screen for MHE.Multivariate logistic analyses were performed to identify the risk factors for MHE.Results:In total,736 patients with cirrhosis were analyzed.The prevalence of MHE was 42.0%(n=309).The primary etiology among all patients was hepatitis B virus(HBV)-related cirrhosis(71.9%[529/736]).The prevalence of MHE was significantly higher in patients with alcoholic cirrhosis(57.1%[40/70])than in those with HBV-related cirrhosis(40.6%[215/529],p=0.009)or hepatitis C virus(HCV)-related cirrhosis(38.2%[26/68],p=0.026).Age(odds ratio[OR],1.042;95%confidence interval[CI],1.024-1.059;p<0.001),duration of education(OR,0.935;95%CI,0.899-0.971;p=0.001),etiology(OR,1.740;95%CI,1.028-2.945;p=0.039),and high MELD-Na scores(OR,1.038;95%CI,1.009-1.067;p=0.009)were independent risk factors for MHE.When patients with cirrhosis of different etiologies were analyzed separately,the results showed that age(OR,1.035;95%CI,1.014-1.057;p=0.001)and duration of education(OR,0.924;95%CI,0.883-0.966;p=0.001)were risk factors for MHE among patients with HBV-related cirrhosis,whereas age(OR,1.138;95%CI,1.033-1.254;p=0.009)and creatinine concentration(OR,16.487;95%CI,1.113-244.160;p=0.042)were risk factors for MHE in patients with HCV-related cirrhosis.No risk factors for MHE were found in patients with autoimmune cirrhosis.For patients with alcoholic cirrhosis,the platelet count(OR,1.014;95%CI,1.000-1.027;p=0.045)was a risk factor for MHE.The PHES subtest results were inconsistent among patients who had MHE with cirrhosis of different etiologies.Patients with HBV-related cirrhosis performed better on Number Connection Test B and the serial dotting test than those with alcoholic cirrhosis(p=0.007 and p<0.001),better on Number Connection Test B than those with HCV-related cirrhosis(p=0.020),and better on the line tracing test than those with autoimmune cirrhosis(p=0.037).Conclusion:The etiology of cirrhosis affected the prevalence of MHE and risk factors for MHE.The domains of major cognitive impairment varied among patients with cirrhosis of different etiologies.Further studies are required to verify these findings. | Xiaoyan Li Shanghao Liu Huiling Xiang Qingge Zhang Ying Guo Hongmei Zu Jing Wang Jiaojian Lv Xiaoning Zhang Fanping Meng Jiahuan Li Jie Li Yangzhen Bianba Jia Shang Guo Zhang Fei Liu Zhaowei Tong Chuang Lei Wei Ye Qiaohua Yang Ningning Wang Ying Song Wei Fu Ziyue Li Yanjing Gao Yongping Zhang Jiafang Chen Caiyun Wu Qi Zheng Fang Wang Jiali Yu Lianjie Lin Chuanlong Yang Xiaoting Yang Xiaomin Ye Xiangmei Wang Xuelan Zhao Xiaolong Qi Fusheng Wang Junliang Fu | 2023 | Portal Hypertension & Cirrhosis2023，2，4： | 0 |
| 7 | DNA-Polyelectrolyte Composite Responsive Microparticles for Versatile Chemotherapeutics Cleaning显示文摘Drug therapy is among the most widely used methods in disease treatment.However,there remains a trade-off problem between drug dosage and toxicity.Blood purification by adsorption of excessive drugs during clinical treatment could be a solution for enhancing therapeutic efficacy while maintaining normal body function.Here,inspired by the intrinsic action mechanism of chemotherapeutic agents in targeting DNA in the cell nucleus,we present DNA-polyelectrolyte composite responsive microparticles for chemotherapeutics cleaning.The presence of DNA in the microparticles enabled the adsorption of multiple common chemotherapy drugs.Moreover,the microparticles are endowed with a porous structure and a photothermal-responsive ability,both of which contribute to improved adsorption by enhancing the contact of the microparticles with the drug solution.On the basis of that,the microparticles are integrated into a herringbone-structured microfluidic chip.The fluid mixing capacity and the enhanced drug cleaning efficiency of the microfluidic platform are validated on-chip.These results indicate the value of the DNA-polyelectrolyte composite responsive microparticles for drug capture and blood purification.We believe the microparticle-integrated microfluidic platform could provide a solution for settling the dosage-toxicity trade-off problems in chemotherapy. | Chong Wang Jiali Wang Zhuohao Zhang Qiao Wang Luoran Shang | 2023 | Research2023，，4： | 0 |
| 8 | Spatial relationship-assisted classification from high-resolution remote sensing imagery显示文摘Spatial information remains to be an important topic in geographic information system and in remote sensing fields,and spatial relationships have been increasingly incorporated into the image classification processes.Previous studies have employed multiple occurrences of spatial features(shape,texture,etc.,)to improve classification results.However,less attention has been focused on using higher-level spatial relationships for image classification.In this study,two novel spatial relationships,namely,maximum spatial adjacency(MSA)and directional spatial adjacency(DSA),were proposed to assist in image classification.The proposed methods were implemented to extract buildings,beach,and emergent vegetation land-cover classes according to their spatial relationships with their corresponding reference classes.The promising results obtained from this study suggest that the proposed MSA and DSA spatial relationships can be valuable information in defining rule sets for a more reasonable and accurate classification. | Cheng Qiao Jinfei Wang Jiali Shang Bahram Daneshfar | 2015 | International Journal of Digital Earth2015，8，9： | 0 |
| 9 | HAPNet:a head-aware pedestrian detection network associated with the affinity field显示文摘Pedestrian detection has made great progress with the rapid development of deep learning,but pedestrian detection under occlusion remains a challenge.To solve the occlusion problem,some research endeavors have been carried out based on visible parts,such as the body,but there is still substantial room for improvement due to the introduction of additional calculation.Aiming to improve the detection performance under occlusion,this paper proposes a head-aware pedestrian detection network(HAPNet)by using the inherent structural relationship between the human body and head.The postprocessing stage is redesigned to include a scoring module and an augmented non-maximum suppression(NMS)algorithm.Specifically,HAPNet detects head and body simultaneously through different layers of a feature map.We then propose a head-side affinity model,which can represent the association between the head and body sides.Detection and affinity prediction tasks are implemented through different branches of HAPNet.In the scoring module,the head and body detection scores are fused to match the head-body pairs to improve the detection performance.On this basis,an enhanced NMS algorithm is proposed,which achieves a good balance between reducing false positives and missing detection.The experimental results verify the effectiveness of this method in pedestrian detection under occlusion. | Jiali DING Tie LIU Yun ZHAO Zejian YUAN Yuanyuan SHANG | 2022 | Science China(Information Sciences)2022，65，6： | 0 |
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