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| 1 | Adsorption–desorption behavior of atrazine on agricultural soils in China显示文摘Adsorption and desorption are important processes that affect atrazine transport,transformation,and bioavailability in soils.In this study,the adsorption–desorption characteristics of atrazine in three soils(laterite,paddy soil and alluvial soil) were evaluated using the batch equilibrium method.The results showed that the kinetics of atrazine in soils was completed in two steps:a'fast' adsorption and a 'slow' adsorption and could be well described by pseudo-second-order model.In addition,the adsorption equilibrium isotherms were nonlinear and were well fitted by Freundlich and Langmuir models.It was found that the adsorption data on laterite,and paddy soil were better fitted by the Freundlich model;as for alluvial soil,the Langmuir model described it better.The maximum atrazine sorption capacities ranked as follows:paddy soil > alluvial soil > laterite.Results of thermodynamic calculations indicated that atrazine adsorption on three tested soils was spontaneous and endothermic.The desorption data showed that negative hysteresis occurred.Furthermore,lower solution pH value was conducive to the adsorption of atrazine in soils.The atrazine adsorption in these three tested soils was controlled by physical adsorption,including partition and surface adsorption.At lower equilibrium concentration,the atrazine adsorption process in soils was dominated by surface adsorption;while with the increase of equilibrium concentration,partition was predominant. | Lin Yue ChengJun Ge Dan Feng Huamei Yu Hui Deng Bomin Fu | 2017 | Journal of Environmental Sciences2017，29，7： | 16 |
| 2 | On the Two Successive Supercold Waves Straddling the End of 2020 and the Beginning of 2021显示文摘Two supercold waves straddling 2020 and 2021 successively hit China and caused record-breaking extremely low temperatures.In this study,the distinct features of these two supercold waves are analyzed on the medium-range time scale.The blocking pattern from the Kara Sea to Lake Baikal characterized the first cold wave,while the large-scale tilted ridge and trough over the Asian continent featured the second cold wave.Prior to the cold waves,both the northwest and hyperpolar paths of cold air contributed to a zonally extensive cold air accumulation in the key region of Siberia.This might be the primary reason why strong and extensive supercold waves occur even under the Arctic amplification background.The two cold waves straddling 2020 and 2021 exhibited distinct features:(1)the blocking circulation occurred to the north or the east of the Ural Mountains and was not confined only to the Ural Mountains as it was for the earlier cold waves;(2)the collocation of the Asian blocking pattern and the polar vortex deflection towards East Asia preferred the hyperpolar path of cold air accumulation and the subsequent southward outburst;and(3)both high-and low-frequency processes worked in concert,leading to the very intense cold waves.The cold air advance along the northwest path,which coincides with the southeastward intrusion of the Siberian High(SH)front edge,is associated with the high-frequency process,while the cold air movement along the hyperpolar path,which is close to the eastern edge of the SH,is controlled by the low-frequency process. | Cholaw BUEH Jingbei PENG Dawei LIN Bomin CHEN | 2022 | Advances in Atmospheric Sciences2022，39，4： | 3 |
| 3 | A flexible neural implant with ultrathin substrate for low-invasive brain–computer interface applications显示文摘Implantable brain–computer interface(BCI)devices are an effective tool to decipher fundamental brain mechanisms and treat neural diseases.However,traditional neural implants with rigid or bulky cross-sections cause trauma and decrease the quality of the neuronal signal.Here,we propose a MEMS-fabricated flexible interface device for BCI applications.The microdevice with a thin film substrate can be readily reduced to submicron scale for low-invasive implantation.An elaborate silicon shuttle with an improved structure is designed to reliably implant the flexible device into brain tissue.The flexible substrate is temporarily bonded to the silicon shuttle by polyethylene glycol.On the flexible substrate,eight electrodes with different diameters are distributed evenly for local field potential and neural spike recording,both of which are modified by Pt-black to enhance the charge storage capacity and reduce the impedance.The mechanical and electrochemical characteristics of this interface were investigated in vitro.In vivo,the small cross-section of the device promises reduced trauma,and the neuronal signals can still be recorded one month after implantation,demonstrating the promise of this kind of flexible BCI device as a low-invasive tool for brain–computer communication. | Zhejun Guo Fang Wang Longchun Wang Kejun Tu Chunpeng Jiang Ye Xi Wen Hong Qingda Xu Xiaolin Wang Bin Yang Bomin Sun Zude Lin Jingquan Liu | 2022 | Microsystems & Nanoengineering2022，8，6： | 1 |
| 4 | Influencing factors of hospitalization costs for glaucoma patients under clinical pathway management显示文摘Background:To investigate and analyze the hospitalization costs of inpatients with primary acute angle closure glaucoma(PACG),and to explores the influencing factors of hospitalization cost and to provide reference for specialized hospitals to carry out clinical pathways.Methods:The first page diagnostic data of PACG patients’medical records were collected,and an Excel database was established according to the International Classification of Diseases(ICD-10)code.Statistical analysis of hospitalization data was performed using SPSS 17.0 software.Results:Hospitalization days and clinical pathway which affect the change of the hospitalization cost(P<0.001).Conclusions:Hospitalization day is an important factor affecting the hospitalization cost,reducing unnecessary hospitalization time can control the increase of hospitalization cost. | Bomin Lin Yangchu Li Wei Zhang Xiqing Liao Huiming Xiao Jianming Sun Yanwei Lin Aihua Lin | 2019 | Annals of Eye Science2019，，1： | 0 |
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