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Electrochemically activated nickel-cobalt double hydroxide for aqueous ammonium-zinc hybrid battery

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Nano Research 2023年第2期16卷 2495-2501页

作者： Qing Pan Peng Hei Yu Song Jianming Meng Chang liu xiao-xia liu Department of Chemistry Northeastern UniversityShenyang 110819China National Frontiers Science Center for Industrial Intelligence and Systems Optimization Northeastern UniversityShenyang 110819China Key Laboratory of Data Analytics and Optimization for Smart Industry(Northeastern University) Ministry of EducationShenyang 110819China

Aqueous rechargeable ammonium-ion(NH^(4+))batteries(AAIBs)with ammonium ions as charge carriers possess many advantages,yet the relatively low discharge capacities(e.g.,<200 mAh·g^(−1))of the reported NH_(4)^(+)host materials hinder the development of ***,we study the NH_(4)^(+)storage properties of an electrochemically activated NiCo double hydroxide(A-NiCo-DH)in neutral ammonium acetate electrolyte for the first *** activation process extracts the interlayer anions(NO3from the host material,providing additional cation accommodation sites for charge *** introduced H vacancies in A-−)NiCo-DH could activate the O sites,leading to the enhanced cation adsorption capability for the ***,A-NiCo-DH exhibits a high discharge capacity of 280.6 mAh·g^(−1)at 0.72 A·g^(−1)with good rate *** studies suggest A-NiCo-DH experiences a NH4+/H+coinsertion mechanism.A NH4+-Zn hybrid cell is assembled using A-NiCo-DH as the cathode and Zn foil as the anode,*** device delivers an energy density of 306 Wh·kg^(−1)at the power density of 745.8 W·kg^(−1)(based on the active mass of A-NiCo-DH).This work provides a new NH_(4)^(+)storage material and would push forward the development of aqueous NH4+-based batteries.

关键词： Ni-Co double hydroxide electrochemical activation charge storage mechanism high capacity ammonium-ion battery

Morph-specific differences in metabolism related to flight in the wing-dimorphic Aphis gossypii

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Insect Science 2010年第6期17卷 527-534页

作者： Sheng-Li Shi xiao-xia liu Qing-Wen Zhang Zhang-Wu Zhao Department of Entomology College of Agriculture and Biotechnology China Agricultural University Beijing China Institute of Food Crops Yunnan Academy of Agricultural Sciences Kunming China

The cotton aphid, Aphis gossypii Glover, is a wing-dimorphic species, which causes globally important agricultural losses. In this present study, we compared the biochemical basis of wing polymorphism in A. gossypii with respect to trade-off of energy resources, including glycogen, trehalose, lipids （total lipid, triglyceride and phospholipid）, free fatty acids, and soluble protein between dispersal and reproduction morphs during the wing-bud nymph and adulthood. Total lipid, triglyceride and free fatty acids were significantly higher in winged versus wingless morphs at 12 h of adulthood, the period during which alates are able to fly. By contrast, the wingless morph contained more glycogen than the winged morph from the 4th nymphal stage to adulthood. Trehalose content in the wingless morph was also higher than that in the winged morph during the 3rd and 4th nymphal stages, but vice versa at 12 h of adulthood. Finally, soluble protein content increased from nymphs to adults and was higher during adulthood in aptera versus alate. Whole-body water content in 12-h adults was significantly higher in apterae than that in alatae. These results indicate significant physiological differences between morphs related to specialization for flight.

关键词： Aphis gossypii, lipids, proteins trade-off, wing dimorphism

Daily expression of two circadian clock genes in compound eyes of Helicoverpa armigera: evidence for peripheral tissue circadian timing

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Insect Science 2019年第2期26卷 217-228页

作者： Shuo Yan Yan-Jun liu Jia-Lin Zhu Wei-Na Cui Xin-Fang Zhang Yu-Hui Yang xiao-Ming liu Qing-Wen Zhang xiao-xia liu Department of Entomology China Agricultural University Beijing China National Agricultural Technology Extension and Service Center Beijing China Beijing Entry-Exit Inspection and Quarantine Bureau Beijing China Zoucheng Plant Protection Station Zoucheng Shandong Province China Changli Institute of Pomology Hebei Academy of Agriculture and Forestry Sciences Changli Hebei Province China

Circadian clock genes in peripheral tissues usually play an important role in regulating the circadian rhythms. Light is the most important environmental signal for synchronizing endogenous rhythms with the daily light-dark cycle, and compound eyes are known as the principal circadian photoreceptor for photic entrainment in most moths. However, there is little evidence for circadian timing in compound eyes. In the current study, we isolated the timeless gene, designated Ha-tim (GenBank accession number: KM233162), from the cotton bo 11 worm Helicoverpa armigera. Ha-tim and period (Haper) showed low messenger RNA levels in the compound eyes compared to the other tested adult organs. Ha-tim and Ha-per transcript levels were dependent on an endogenous rhythm that fluctuated over a daily cycle in the compound eyes and heads. The cycles of Hatim and Ha-per transcript levels followed similar time courses, and identical expression patterns of the two genes were observed in the compound eyes and heads. Ha-tim and Ha-per were dowregulated in the compound eyes after light exposure, copulation and starvation. These results indicated that Ha-tim and Ha-per transcript levels were regulated by endogenous and exogenous factors. Our study helped to improve our understanding of the circadian clock machinery in compound eyes and other peripheral tissues.

关键词： circadian clock compound eye photoreceptor period timeless rhythm

Impact of transgenic Bacillus thuringiensis cotton on a non-target pest Tetranychus spp. in northern China

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Insect Science 2006年第4期13卷 279-286页

作者： xiao-MU MA xiao-xia liu QING-WEN ZHANG JI-JUN LI AI-MIN REN College of Agronomy and Biotechnology China Agricultural University Beijing Handan Academy of Agriculture Science Handan Hebei China

Field studies were carried out to evaluate the effect of two transgenic cotton varieties （SGK321 carrying CryIA ＋ CpTI and DP99B carrying CryIAc） and the conventional variety （shiyuan321-parental line of SGK321） on spider mites, Tetranychus spp. from 2002 to 2004. In 2002, this experiment included three treatments： Bt cotton field （SGK321） treated with acaricides against spider mites, untreated non-Bt cotton field （Shiyuan321）, and untreated Bt cotton field （SGK321）. In 2003-2004, there are four types of treatments after a new transgenic Bt cotton variety, DP99B （non-chemical control）, was added into the experiments. The results showed that there were no significant difference in densities of spider mites among Bt without acaricides and non-Bt without acaricides cotton fields, nor was there a significant difference in damage of spider mites to cotton among these treatments （P 〉 0.1）. However, there are significant differences （P 〈 0.05） in densities of spider mites and damage caused by spider mites between cotton fields with and without acaricides. Acaricide significantly reduced the densities of spider mites in Bt cotton （P 〈 0.05）. These results suggest that Bt cotton has no effect on spider mites populations. However, spider mites have the potential for severe damage in Bt cotton fields. Acaricides are essential tools in controlling cotton spider mites in northern China.

关键词： acaricide Bt cotton non-target Tetranychus spp.

Potential dependence in electrocatalysis: a theoretical perspective

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Science China Chemistry 2025年第1期68卷 21-25页

作者： Leyu liu Zhaoming xia Zeyu Wang Yinjuan Chen Hai xiao Department of Chemistry Tsinghua University Fundamental Science Center of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou University

Electrocatalysis is a key technology for the new energy era and sustainable development, serving as the interface for interconversion of electrical and chemical energies, which spans a wide spectrum of applications in sustainable energy and environmental engineering. Electrocatalytic reactions including electrochemical CO2reduction reaction （eCO2RR）, hydrogen evolution reaction （HER）, and oxygen evolution/reduction reactions （OER/ORR）, hold essential promise for renewable energy technologies as well as complement the biogeochemical carbon and oxygen cycles.

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Effect of infarct location and volume on cognitive dysfunction in elderly patients with acute insular cerebral infarction

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World Journal of Psychiatry 2024年第8期14卷 1190-1198页

作者： Fei-Fei Liang xiao-xia liu Jiang-Hong liu Yang Gao Jian-Guo Dai Zi-Hui Sun Department of Geriatrics Zhangjiakou First Hospital in Hebei ProvinceZhangjiakou 075000Hebei ProvinceChina The Fourth Ward Zhangjiakou Infectious Disease HospitalZhangjiakou 075000Hebei ProvinceChina Department of Hepatobiliary and Pancreatic Surgery Zhangjiakou First Hospital in Hebei ProvinceZhangjiakou 075000Hebei ProvinceChina Department of General Medicine Zhangjiakou First Hospital in Hebei ProvinceZhangjiakou 075000Hebei ProvinceChina

BACKGROUND The aging of the population has become increasingly obvious in recent years,and the incidence of cerebral infarction has shown an increasing trend annually,with high death and disability *** To analyze the effects of infarct location and volume on cognitive dysfunction in elderly patients with acute insular cerebral *** Between January 2020 and December 2023,we treated 98 cases of elderly acute insula,patients with cerebral infarction in the cerebral infarction acute phase(3-4 weeks)and for the course of 6 months in Montreal Cognitive Assessment Scale(MoCA)for screening of ***,58 and 40 patients were placed in the cognitive impairment group and without-cognitive impairment group,*** patients with cerebral infarction,magnetic resonance imaging was used to screen and clearly analyze the MoCA scores of two groups of patients with different infarctions,the relationship between the parts of the infarction volume,and analysis of acute insula cognitive disorder in elderly patients with cerebral RESULTS The number of patients with cognitive impairment in the basal ganglia and thalamus was significantly higher than that without cognitive impairment(P<0.05).The total infarct volume in the cognitive impairment group was higher than that in the non-cognitive impairment group,and the difference was statistically significant(P<0.05).The infarct volumes at different sites in the cognitive impairment group was higher than in the non-cognitive impairment group(P<0.05).In the cognitive impairment group,the infarct volumes in the basal ganglia,thalamus,and mixed lesions were negatively correlated with the total MoCA score,with correlation coefficients of-0.67,-0.73,and-0.77,*** In elderly patients with acute insular infarction,infarction in the basal ganglia,thalamus,and mixed lesions were more likely to lead to cognitive dysfunction than in other areas,and patients with large infarct volumes were more like

关键词： Elderly Acute insular infarction Infarction site Cognitive impairment Infarction volume

Clinical benefit of left atrial appendage closure in octogenarians

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Journal of Geriatric Cardiology 2021年第11期18卷 886-896页

作者： Yamen Mohrez Steffen Gloekler Steffen Schnupp Wasim Allakkis xiao-xia liu Monika Fuerholz Johannes Brachmann Stephan Windecker Stephan Achenbach Bernhard Meier Caroline Kleinecke Department of Cardiology Klinikum CoburgCoburgGermany Cardiovascular Department University Hospital of BernBernSwitzerland Department of Cardiology Klinikum HochrheinWaldshut-TiengenGermany Depart-ment of Cardiology Beijing Anzhen HospitalBeijingChina Department of Cardiology Friedrich-Alexander Uni-versity Erlangen-NuernbergErlangenGermany

OBJECTIVES Whether left atrial appendage closure(LAAC)in octogenarians yield similar net clinical benefit compared to younger patients,was the purpose of the present *** Two real-world LAAC registries,enrolling 744 consecutive Amplatzer and Watchman patients from 2009 to 2018,were retrospectively *** All events are reported per 100 *** hundred and sixty one octogenarians and 483 non-octogenarians with a mean follow-up of 1.7±1.3 and 2.3±1.6 years,and a total of 1,502 patient-years were *** had a higher risk for stroke(CHA2DS2-VASc score:5.2±1.2 vs.4.3±1.7,P<0.0001)and bleeding(HAS-BLED score:3.3±0.8 vs.3.1±1.1,P=0.001).The combined safety endpoint of major periprocedural complications and major bleeding events at follow-up was comparable(30/446,6.7%vs.47/1056,4.4%;hazard ratio[HR]=1.2;95%confidence interval[CI]:0.73−1.98;P=0.48)between the *** efficacy endpoint of all-cause stroke,systemic embolism,and cardiovascular/unexplained death occurred more often in octogenarians(61/446,13.7%vs.80/1056,7.6%;HR=7.0;95%CI:4.53−10.93;P<0.0001).Overall,octogenarians had a lower net clinical benefit,i.e.,the composite of all above mentioned hazards,from LAAC compared to younger patients(82/446,18.4%vs.116/1056,11.0%;HR=4.6;95%CI:3.11−7.0;P<0.0001).Compared to the anticipated stroke rate,the observed rate de-creased by 41%in octogenarians and 53%in *** observed bleeding rate was reduced by 10%octogenarians and 41%*** LAAC can be performed with similar safety in octogenarians as compared to younger *** the long-term,it both reduces stroke and bleeding events,although to a lesser extent than in non-octogenarians.

关键词： atrial closure younger

Effect of hybrid ratio on friction and wear behavior of AZ91D matrix nanocomposites under oil lubricated conditions

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Transactions of Nonferrous Metals Society of China 2018年第3期28卷 440-450页

作者： xia ZHOU Li LI Dong WEN xiao-xia liu Cheng-wei WU State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering MechanicsFaculty of Vehicle Engineering and MechanicsDalian University of TechnologyDalian 116024China

Friction and wear behavior of AZ91D and its nanocomposites reinforced by different contents of hybrid multi-walled CNTs and nano-SiC particulates under oil lubrication was investigated using a MRS-10P four-ball *** coefficients and wear rates were measured within a load range of 200-1000 N at a spindle rotary speed of 380 r/*** surface morphologies,phase and element compositions were studied by scanning electron microscope(SEM),X-ray diffraction(XRD)and energy dispersive spectroscopy(EDS),*** mechanism of synergistic effect of CNTs and SiC nanoparticles was *** results indicate that the AZ91D nanocomposites show better wear resistance properties and different wear mechanisms compared with *** AZ91D nanocomposites reinforced with 0.5%CNTs and 0.5%nano-SiC have the best tribological *** wear mechanisms for the Mg-based hybrid nanocomposites appear to be a mix-up of micro-ploughing,micro-cutting,slight adhesive wear and delamination.

关键词： magnesium nanocomposites hybrid ratio oil-lubricating sliding wear wear mechanism

Conditioned Medium from Human Umbilical Vein Endothelial Cells Promotes Proliferation,Migration,Invasion and Angiogenesis of Adipose Derived Stem Cells

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Journal of Huazhong University of Science and Technology(Medical Sciences) 2018年第1期38卷 124-130页

作者： Ming-lian LUO xiao-ping liu Fang WANG xiao-xia liu Wei-fang liu Di WU Hui TAO Rong-li WANG Yin ZHAO Jian-wen ZHU Li ZOU Department of Obstetrics and Gynecology Union HospitalTongji Medical CollegeHuazhong University of Science and Technology Department of Obstetrics and Gynecology Wuhan First Hospital

Preeclampsia（PE） is a pregnancy-specific hypertensive complication,closely related to endothelial *** derived stem cells（ADSCs） have the capacity to differentiate into endothelial cells for vascular ***,we hypothesized that induced endothelial differentiation of ADSCs might hold great potential for the treatment of *** this study,the primary ADSCs and human umbilical vein endothelial cells（HUVECs） were isolated by the collagenase digestion *** supernatant of HUVECs was collected from the first generation of ***,ADSCs were divided into two groups：ADSCs alone group and induced ADSCs（i ADSCs） *** i ADSCs group,ADSCs were induced by HUVECs conditioned medium and ADSCs special culture medium at a ratio of 1：1 over a two-week *** order to identify the endothelial characteristics of i ADSCs,CD31 and CD34 were examined by flow *** proliferation,migration,invasion and angiogenesis assays were employed to compare the bioactivity of i ADSCs and ***,The levels of angiogenic related factors including vascular endothelial growth factor（VEGF） and placenta growth factor（Pl GF） were detected by RT-PCR and Western *** showed conditioned medium from HUVECs promoted ADSCs proliferation,migration,invasion and *** addition,the levels of VEGF and Pl GF were significantly enhanced in i ADSCs *** study uncovered the i ADSCs application potential in the therapy and intervention of PE.

关键词： adipose derived stem cells endothelial differentiation angiogenesis preeclampsia