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| 1 | Analysis of factors affecting the impurity rate of mechanically-harvested maize grain in China显示文摘The grain impurity rate is an important index for assessing the quality of mechanical maize harvesting.Therefore,it is of great significance to clarify the current situation of maize impurity rate and study the factors that affect the impurity rate in order to promote the development of mechanical maize harvesting technology.From 2012 to 2019,a total of 2504 maize impurity rate measurements were obtained.The results showed that the average impurity rate at maize harvest was 1.18%in China,in which the Huang-Huai-Hai summer maize area was 1.68%,which was significantly higher than the 0.65%in the Northwest spring maize area and 0.77%in the North China spring maize area.There was a significant positive correlation between the impurity rate and the moisture content of the maize harvest.The average moisture content of maize at harvest in Huang-Huai-Hai summer maize area was the highest at 27.55%,which was the main reason for the high impurity rate in this area.When harvesting different varieties with the same moisture content,there were significant differences in the impurity rate between different varieties.The cob hardness of the variety may also affect the impurity rate of maize.Different harvesters and weather conditions during harvesting are also important factors affecting the impurity rate.Therefore,by breeding fast dehydrated varieties and harvesting maize in time,the impurity rate of maize during mechanical harvesting can be effectively reduced. | Zhaofu Huang Jun Xue Bo Ming Keru Wang Ruizhi Xie Peng Hou Shaokun Li | 2020 | International Journal of Agricultural and Biological Engineering2020，13，5： | 1 |
| 2 | Improving harvest efficiency of maize varieties via accumulated temperature in a certain planting area显示文摘The ripening and drying of maize(Zea mays L.)grain are closely related to temperature.In accordance with maize grain drying characteristics,regional accumulated temperature(AT0≥0℃)distribution is of great significance for a rational allocation of maize varieties,thus reducing grain moisture content(MC)to improve maize harvest efficiency.From 2016 to 2018,a multi-site trial was carried out in the spring maize production area of Northeastern China.In this study,under a guaranteed rate of 80%for AT0,this area was divided into 15 accumulated temperature zones(ATZs)with an interval of 100℃ based on climatic data of 78 local weather stations.Then the AT0 demand of different maize varieties during different growth stages was calculated by combining experimental records with the established prediction model of MC,and then,the spatial partition for different types of maize varieties under different MCs was analyzed.The results showed that all the tested varieties could not reach physiological maturity(PM)at ATZs 13-15,hence,where maize planting is risky.With the increasing accumulated temperature demand of different types of maize varieties from planting to PM,to the MC of 25%and to the MC of 20%,the unplantable areas were gradually expanded from south to north while the region where the maize varieties could be harvested under different MCs was also moved southwardly.Additionally,at 1-2 ATZs,it is entirely possible to achieve mechanical kernel harvesting under the MC of 20%,even though the AT0 requirements of the varieties are relatively high.Conclusively,on the grounds of AT0 demand law of maize varieties and heat resource distribution in Northeastern China,the layout optimization for achieving different harvesting scenarios is conducive to providing a basis not only for selecting suitable varieties but also for promoting mechanical kernel harvesting in the spring maize production area of this region. | Zhaofu Huang Liangyu Hou Jun Xue Keru Wang Ruizhi Xie Peng Hou Bo Ming Shaokun Li | 2021 | International Journal of Agricultural and Biological Engineering2021，14，4： | 1 |
| 3 | Ascorbic acid derived carbon dots promote circadian rhythm and contribute to attention deficit hyperactivity disorder显示文摘Attention deficit hyperactivity disorder(ADHD)is one of the most prevalent psychiatric disorders in children,and ADHD patients always display circadian abnormalities.While,the ADHD drugs currently used in clinic have strong side effects,such as psychosis,allergic reactions,and heart problems.Here,we demonstrated carbon dots derived from the ascorbic acid(VCDs)could strongly rescue the hyperactive and impulsive behaviour of a zebrafish ADHD disease model caused by per1b mutation.VCDs prolonged the circadian period of zebrafish for more than half an hour.In addition,the amplitude and circadian phase were also changed.The dopamine level was specifically increased,which may be caused by stimulation of the dopaminergic neuron development in the midbrain.Notably,it was found that the serotonin level was not altered by VCDs treatments.Also,the gene transcriptome effects of VCDs were discussed in present work.Our results provided the dynamic interactions of carbon dots with circadian system and dopamine signaling pathway,which illustrates a potential application of degradable and bio-safe VCDs for the treatment of the attention deficient and hyperactive disorder through circadian intervention. | Jian Huang Yun Wang Zhaomin Zhong Yurong Ma Keru Deng Changhong Liu Hui Huang Yang Liu Xin Ding Zhenhui Kang | 2022 | Nano Research2022，15，9： | 0 |
| 4 | Radiological biomarkers of idiopathic normal pressure hydrocephalus:new approaches for detecting concomitant Alzheimer’s disease and predicting prognosis显示文摘Idiopathic normal pressure hydrocephalus(iNPH)is a clinical syndrome characterized by cognitive decline,gait disturbance,and urinary incontinence.As iNPH often occurs in elderly individuals prone tomany types of comorbidity,a differential diagnosis with other neurodegenerative diseases is crucial,especially Alzheimer’s disease(AD).A growing body of published work provides evidence of radiological methods,including multimodal magnetic resonance imaging and positron emission tomography,which may help noninvasively differentiate iNPH from AD or reveal concurrent AD pathology in vivo.Imaging methods detecting morphological changes,white matter microstructural changes,cerebrospinal fluid circulation,and molecular imaging have been widely applied in iNPH patients.Here,we review radiological biomarkers using different methods in evaluating iNPH pathophysiology and differentiating or detecting concomitant AD,to noninvasively predict the possible outcome postshunt and select candidates for shunt surgery. | Hanlin Cai Yinxi Zou Hui Gao Keru Huang Yu Liu Yuting Cheng Yi Liu Liangxue Zhou Dong Zhou Qin Chen | 2022 | Psychoradiology2022，2，4： | 0 |
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