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A widely used nonionic surfactant with desired functional groups as aqueous electrolyte additives for stabilizing Zn anode

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Rare Metals 2024年第8期43卷 3692-3701页

作者： Yue-Xian Song Xiao-Feng Wang Cai-Bin Liu Kai-Xuan Guo Xu-huan Guo Xiao-Bin Zhong Yao-Hui Zhang Kai Wang Hui-juan Guo Li-Xin Zhang Jun-Fei Liang School of Energy and Power Engineering North University of ChinaTaiyuan 030051China Key Laboratory of Green Chemical Process of Ministry of Education Hubei Key Laboratory of Novel Chemical Reactor and Green Chemical TechnologySchool of Chemical Engineering and PharmacyWuhan Institute of TechnologyWuhan 430073China Shanxi Provincial Key Laboratory for High Performance Battery Materials and Devices Taiyuan 030051China

Aqueous Zn-ion batteries(AZIBs) have emerged as potential candidates for Li-ion batteries due to their intrinsic safety and high ***,metallic Zn anodes encounter dendrite growth and water-induced corrosion,rendering poor stability and severe irreversibility at the electrode/electrolyte interface during *** stabilize the Zn anode,we report a low-cost and effective nonionic surfactant,Tween-20 polymer,as an electrolyte additive for *** Tween-20,sequential oxyethylene groups tended to be preferentially adsorbed on the Zn electrode to form a shielding layer for regulating uniform Zn ***,the hydrophobic hendecyl chains prevented H_(2)O-induced corrosion on the Zn anode *** from the desired functional groups,when only trace amounts of Tween-20(0.050 g·L^(-1)) were used,the Zn anode displayed good cycling stability over 2170 h at10 mA·cm^(-2) and a high average Coulombic efficiency of98.94% over 1000 *** Tween-20 polymer can also be effectively employed in MnO_(2)/Zn full *** their toxicity,price and amount of usage,these surfactant additives provide a promising strategy for realizing the stability and reversibility of high-performance Zn anodes.

关键词： Zn anode Dendrite growth Tween-20 polymer Surfactant additive Aqueous electrolyte

Safety and efficacy of a low frame rate protocol for percutaneous coronary intervention for chronic total occlusions

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Chinese Medical Journal 2021年第10期134卷 1215-1217页

作者： Ming-huan Fu Yuan-Yuan Pan Xue-Fei Tao juan Du Biao Cheng Department of Geriatric Cardiology Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuan 610072China

Chronic total occlusion(CTO)is the complete obstruction of a coronary artery for>3 months,combined with thrombolysis in myocardial infarction(TIMI)flow grade *** coronary intervention(PCI)is widely used to treat CTO but is less used than coronary artery bypass graft surgery(CABG).[1]However,PCI for CTO may increase the exposure of patients and operating physicians to radiation compared with non-CTO PCIs,[2]and higher radiation exposure is linked to long-term adverse outcomes.[3]PCI operators are exposed to significantly less radiation than patients during each procedure;however,repeated exposure during a lifetime may cause health ***,reducing the exposure of PCI cardiologists to radiation without compromising the surgical success rate and clinical outcomes of patients is crucial.A low frame rate(LFR)protocol and/or selective fluoroscopy image storage decreases the exposure of PCI operators and patients to radiation during *** objective of this study is to evaluate the safety and efficacy of an LFR protocol for managing CTO patients.

关键词： coronary occlusion bypass

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中国生猪生产布局变迁的经济学分析

经济地理 2017年第8期37卷 129-136,215页

作者：王欢乔娟中国农业大学经济管理学院中国北京100083

基于2000—2014年省级面板数据,运用生产集中度和区域重心分析法综合考察生猪生产布局变迁轨迹和特征,从空间效应的角度,采用空间计量经济模型实证分析生猪生产布局变迁的经济学成因。研究表明,生猪生产区域呈现出向东向北移动的演变趋... 详细信息

基于2000—2014年省级面板数据,运用生产集中度和区域重心分析法综合考察生猪生产布局变迁轨迹和特征,从空间效应的角度,采用空间计量经济模型实证分析生猪生产布局变迁的经济学成因。研究表明,生猪生产区域呈现出向东向北移动的演变趋势;地区间生猪生产具有空间相关性,生猪产业存在空间集聚现象;资源禀赋、技术水平、交通通达性的直接效应对生猪生产起到促进作用,相邻地区和本地区的劳动力教育水平和价格预期共同影响本地区生猪生产,畜牧业比较优势的挤出效应因非农就业机会的间接效应得到缓解,环境规制对本地区生猪生产有抑制作用。

关键词：生猪生产布局变迁空间效应中国

Retro-labyrinthine Lesion Site Detected by Galvanic Vestibular Stimulation Elicited Vestibular-evoked Myogenic Potentials in Patients with Auditory Neuropathy

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Current Medical Science 2021年第4期41卷 695-704页

作者： Zi-chen CHEN Yu-zhong ZHANG huan-di ZHAO Xinyu WEI Toshihisa Murofushi juan HU Ying CHENG Fei-yun CHEN Xin-da XU Min XU Qing ZHANG Department of Otorhinolaryngology Headand Neck SurgerySecond Affiliated Hospital of Xi’an Jiaotong University School of MedicineXi’an710000China Department of Otorhinolaryngology-Head and Neck Surgery Xinhua HospitalShanghai Jiaotong University School of MedicineShanghai200082China Shanghai Jiaotong University School of Medicine Ear Institute Shanghai200082China Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases Shanghai200082China Department of Otolaryngology Teikyo University School of Medicine Mizonokuchi HospitalKawasaki213-0001Japan Department of Otorhinolaryngology Affiliated Ophthalmology and Otolaryngology Hospital of Fudan UniversityShanghai200082China

Objective Auditory neuropathy(AN)is a unique pattern of hearing loss with preservation of hair cell *** condition is characterized by the presence of otoacoustic emissions(OAE)or cochlear microphonic(CM)responses with severe abnormalities of the auditory brainstem response(ABR).The vestibular branches of the VIII cranial nerve and the structures innervated by it can also be ***,the precise lesion sites in the vestibular system are not well characterized in patients with *** The air-conducted sound(ACS)vestibular-evoked myogenic potentials(VEMPs)and galvanic vestibular stimuli(GVS)-VEMPs were examined in 14 patients with *** On examination of VEMPs(n=14,28 ears),the absent rates of ACS-cervical VEMP(cVEMP),ACS-ocular VEMP(oVEMP),GVS-cVEMP,GVS-oVEMP and caloric test were 92.9%(26/28),85.7%(24/28),67.9%(19/28),53.6%(15/28),and 61.5%(8/13),*** functions of the saccule,inferior vestibular nerve,utricle,superior vestibular nerve,and horizontal semicircular canal were found in 25.0%(7/28),67.9%(19/28),32.1%(9/28),53.6%(15/28)and 61.5%(8/13)patients,*** comparing the elicited VEMPs parameters of AN patients with those of normal controls,both ACS-VEMPs and GVS-VEMPs showed abnormal results in AN patients(such as,lower presence rates,elevated thresholds,prolonged latencies,and decreased amplitudes).Conclusion The study suggested that patients with AN often have concomitant vestibular ***-labyrinthine lesions were more frequently observed in this ***-VEMPs combined with ACS-VEMPs may help identify the lesion sites and facilitate detection of areas of vestibular dysfunction in these patients.

关键词： auditory neuropathy vestibular-evoked myogenic potentials galvanic vestibular stimulation air-conducted sound

Optimal timing for the oral administration of DaCheng-Qi decoction based on the pharmacokinetic and pharmacodynamic targeting of the pancreas in rats with acute pancreatitis

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World Journal of Gastroenterology 2017年第39期23卷 7098-7109页

作者： Yu-Mei Zhang Lin Zhu Xian-Lin Zhao huan Chen Hong-Xin Kang Jian-Lei Zhao Mei-Hua Wan juan Li Lv Zhu Wen-Fu Tang Department of Integrative Medicine West China Hospital Sichuan University Digestive System Department Sichuan Integrative Medicine Hospital Department of Integrative Medicine Chengdu Integrated TCM and Western Medicine Hospital Department of Pharmacology School of Preclinical and Forensic Medicine West China Medical Center Sichuan University

AIM To identify the optimal oral dosing time of Da-Cheng-Qi decoction(DCQD) in rats with acute pancreatitis(AP) based on the pharmacokinetic and pharmacodynamic *** First, 24 male Sprague-Dawley rats were divided into a sham-operated group [NG(a)] and three model groups [4 h G(a), 12 h G(a) and 24 h G(a)]. The NG(a) and model groups were administered DCQD(10 g/***) intragastrically at 4 h, 4 h, 12 h and 24 h, respectively, after AP models induced by 3% sodium taurocholate. Plasma samples were collected from the tails at 10 min, 20 min, 40 min, 1 h, 2 h, 4 h, 8 h, 12 h and 24 h after a single dosing with DCQD. Plasma and pancreatic tissue concentrations of the major components of DCQD were determined by high-performance liquid chromatography tandem mass spectroscopy. The pharmacokinetic parameters and serum amylase were detected and compared. Second, rats were divided into a sham-operated group [NG(b)] and three treatment groups [4 h G(b), 12 h G(b) and 24 h G(b)] with three corresponding control groups [MG(b)s]. Blood and pancreatic tissues were collected 24 h after a single dosing with DCQD. Serum amylase, inflammatory cytokines and pathological scores of pancreatic tissues were detected and *** The concentrations of emodin, naringin, honokiol, naringenin, aloe-emodin, chrysophanol and rheochrysidin in the 12 h G(a) group were higher than those in the 4 h G(a) group in the pancreatic tissues(P < 0.05). The area under the plasma concentration-time curve from time 0 to the time of the last measurable concentration values(AUC0→t) for rhein, chrysophanol, magnolol and naringin in the 12 h G(a) group were larger than those in the 4 h G(a) or 24 h G(a) groups. The 12 h G(a) group had a higher Cmax than the other two model groups. The IL-10 levels in the 12 h G(b) and 24 h G(b) groups were higher than in the MG(b)s(96.55 ± 7.84 vs 77.46 ± 7.42, 251.22 ± 16.15 vs 99.72 ± 4.7 respectively, P < 0.05), while in the 24 h G(b) group, the IL-10 leve

关键词： Da-Cheng-Qi decoction Acute pancreatitis Pharmacokinetics Oral dosing time Pharmacodynamics

基于Green-Ampt模型的变水头积水入渗模型建立及其参数求解

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水利学报 2010年第1期40卷 61-67页

作者：马娟娟孙西欢郭向红太原理工大学永利科学与工程学院山西太原030024

通过对变水头积水入渗物理机制的分析,将入渗水头对入渗的影响归结为对表面饱和导水率的影响,基于Green-Ampt入渗模型,引用了湿润区的平均含水率的概念,并考虑了湿润区平均含水率随入渗时间的变化,建立了具有物理意义的3种变水头积水入... 详细信息

通过对变水头积水入渗物理机制的分析,将入渗水头对入渗的影响归结为对表面饱和导水率的影响,基于Green-Ampt入渗模型,引用了湿润区的平均含水率的概念,并考虑了湿润区平均含水率随入渗时间的变化,建立了具有物理意义的3种变水头积水入渗模型,分析了利用入渗率-累积入渗量及入渗率-真实湿润锋图形获得模型参数的求解方法。通过室内试验,得到了湿润区的平均含水率与入渗时间之间呈乘幂函数变化的规律。利用实测资料对模型及其参数求解的方法进行检验,结果表明所建立的3种模型是正确的,求解参数的方法合理。

关键词：变水头入渗模型 Green—Ampt公式表层饱和导水率湿润区的平均含水率

基于混合遗传算法估计van Genuchten方程参数

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水科学进展 2009年第5期20卷 677-682页

作者：郭向红孙西欢马娟娟太原理工大学水利科学与工程学院山西太原030024

van Genuchten(VG)方程是最常用的土壤水分特征曲线方程,其参数取值的精度直接影响到土壤水分运动方程计算的精度。该文建立了VG方程参数的优化模型,构建遗传算法与Levenberg-Marquardt算法相结合的混合遗传算法对其进行求解,并进行了... 详细信息

van Genuchten(VG)方程是最常用的土壤水分特征曲线方程,其参数取值的精度直接影响到土壤水分运动方程计算的精度。该文建立了VG方程参数的优化模型,构建遗传算法与Levenberg-Marquardt算法相结合的混合遗传算法对其进行求解,并进行了数值试验。结果表明采用混合遗传算法比普通遗传算法不但提高了收敛效率,而且收敛迭代次数也大大减少;采用混合遗传算法估计参数的精度比非线性单纯形法和阻尼最小二乘法要高一些,而且不需要给参数初值。因此,混合遗传算法可以作为估计VG方程参数的一种新方法。

关键词：土壤水分特征曲线 van Genuchten方程混合遗传算法 Levenberg-Marquardt算法

Systematic profiling of SARS-CoV-2-specific IgG epitopes at amino acid resolution

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Cellular & Molecular Immunology 2021年第4期18卷 1067-1069页

作者： huan Qi Ming-liang Ma He-wei Jiang Jian-ya Ling Ling-yun Chen Hai-nan Zhang Dan-yun Lai yang Li Zi-wen Guo Chuan-sheng Hu Shu-juan Guo Qing-feng Meng Yan Ren Xiao yang Wei Wang Jie Zhou Xiao-dong Zhao Hua Li Sheng-ce Tao Shanghai Center for Systems Biomedicine Key Laboratory of Systems Biomedicine(Ministry of Education)Shanghai Jiao Tong UniversityShanghaiChina State Key Laboratory of Microbial Technology Shandong UniversityQingdaoShandongChina BGI Education Center University of Chinese Academy of SciencesShenzhenGuangdongChina State Key laboratory for Oncogenes and Bio-ID Center School of Biomedical EngineeringShanghai Jiao Tong UniversityShanghaiChina BGI-Shenzhen ShenzhenGuangdongChina Foshan Fourth People's Hospital FoshanGuangdongChina Institute of Biophysics Chinese Academy of SciencesBeijingChina

There is a worldwide pandemic of COVID-19 caused by SARS-CoV-2.1 By January 28,2021,more than 100 million cases had been diagnosed,and more than 2 million deaths had been reported(https://***/***).The comprehensive and in-depth elucidation of SARS-CoV-2-specific IgG responses will help us to better understand COVID-19 immunity and facilitate the precise development of neutralizing antibodies and vaccines.

关键词： map. precise neutral

TPACK理论视角下STEM教师的知识结构及其量表的开发与验证

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现代教育技术 2024年第4期34卷 122-131页

作者：刘唤杨晓娟山东师范大学教育学部山东济南250014

STEM教育是落实创新人才培养模式的重要举措,研究STEM教师知识结构,开展STEM教师知识测评,是持续、深入提升STEM教育质量的关键。为此,文章基于TPACK理论模型,通过文献研究、访谈和专家咨询进行STEM教师知识结构理论维度的构建与优化,... 详细信息

STEM教育是落实创新人才培养模式的重要举措,研究STEM教师知识结构,开展STEM教师知识测评,是持续、深入提升STEM教育质量的关键。为此,文章基于TPACK理论模型,通过文献研究、访谈和专家咨询进行STEM教师知识结构理论维度的构建与优化,并通过项目分析、因子分析和信效度检验等步骤,编制STEM教师知识测评量表。研究结果表明,量表具有良好的信效度;量表各题项内部一致性较好,符合拟合接受的标准;量表7个维度彼此之间是相互影响的关系。文章通过研究,期望为测量STEM教师知识水平和促进STEM教师专业成长提供参考。

关键词： TPACK STEM教师知识结构量表开发