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Heteroatom tuning in agarose derived carbon aerogel for enhanced potassium ion multiple energy storage

Carbon Energy 2024年第3期6卷 239-254页

作者： Kaijun Xie Xin Liu Haolin Li Long Fang Kai Xia Dongjiang Yang Yihui Zou Xiaodong Zhang State Key Laboratory of Bio-fibers and Eco-textiles Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological TextilesInstitute of Marine Biobased MaterialsCollege of Chemistry and Chemical EngineeringCollege of Environmental Science and EngineeringQingdao UniversityQingdaoChina

The incorporation of heteroatoms into carbon aerogels(CAs)can lead to structural distortions and changes in active sites due to their smaller size and electronegativity compared to pure ***,the evolution of the electronic structure from single-atom doping to heteroatom codoping in CAs has not yet been thoroughly investigated,and the impact of codoping on potassium ion(K+)storage and diffusion pathways as electrode material remains *** this study,experimental and theoretical simulations were conducted to demonstrate that heteroatom codoping,composed of multiple heteroatoms(O/N/B)with different properties,has the potential to improve the electrical properties and stability of CAs compared to single-atom *** states near the Fermi level have revealed that doping with O/N/B generates a greater number of active centers on adjacent carbon atoms than doping with O and O/N *** a result of synergy with enhanced wetting ability(contact angle of 9.26°)derived from amino groups and hierarchical porous structure,ON-CA has the most optimized adsorption capacity(−1.62 eV)and diffusion barrier(0.12 eV)of K^(+).The optimal pathway of K^(+)in ON-CA is along the carbon ring with N or O *** K^(+)storage material for supercapacitors and ion batteries,it shows an outstanding specific capacity and capacitance,electrochemical stability,and rate ***,the assembled symmetrical K^(+)supercapacitor demonstrates an energy density of 51.8 Wh kg^(−1),an ultrahigh power density of 443Wkg^(−1),and outstanding cycling stability(maintaining 83.3%after 10,000 cycles in 1M KPF6 organic electrolyte).This research provides valuable insights into the design of highperformance potassium ion storage materials.

关键词： agarose carbon aerogels O/N/B codoping potassium-ion battery potassium-ion supercapacitor

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BIFURCATION OF THE NORTH EQUATORIAL CURRENT DERIVED FROM ALTIMETRY IN THE PACIFIC OCEAN

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Journal of Hydrodynamics 2006年第5期18卷 620-626页

作者： WANG Qing-ye HU Dun-xin Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Graduate School of the Chinese Academy of sciences Beijing 100039 China

The gridded （1/3°＊1/3°） altimetry data from October 1992 through December 2004 were analyzed to study the seasonal and interannual variabilities of the bifurcation of the North Equatorial Current （NEC） at the surface in the western North Pacific Ocean. Calculations show that on annual average the bifurcation occurs at about 13.4°N at the surface. The geostrophic flow derived from Sea Surface Height （SSH） data shows that the southernmost latitude of the NEC bifurcation at the surface is about 12.9°N in June and the northernmost latitude is about 14.1°N in December. Correlation analyses between the bifurcation latitude and the Southern Oscillation Index （SOl） suggest that the bifurcation latitude is highly correlated with the E1 Nino/Southern Oscillation （ENSO） events. During the E1 Nino years the bifurcation of the NEC takes place at higher latitudes and vice versa.

关键词： bifurcation of the North Equatorial Current altimetry data Pacific Ocean North Equatorial Current (NEC),E1 Nino/Southern Oscillation (ENSO) events

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Functions and mechanisms of protein lysine butyrylation(Kbu):Therapeutic implications in human diseases

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Genes & Diseases 2023年第6期10卷 2479-2490页

作者： Qianqian Xue Yanyan Yang Hong Li Xiaoxin Li Lu Zou Tianxiang Li Huibo Ma Hongzhao Qi Jianxun Wang Tao Yu Institute for Translational Medicine The Affiliated Hospital of Qingdao UniversityQingdaoShandong 266000China Department of Immunology School of Basic MedicineQingdao UniversityQingdaoShandong 266021China Clinical Laboratory Central Laboratory.The Affiliated Qingdao Hiser Hospital of Qingdao UniversityQingdaoShandong 266000China Department of Vascular Surgery The Affiliated Hospital of Qingdao UniversityQingdaoShandong 266000China Department of Cardiac Ultrasound The Affiliated Hospital of Qingdao UniversityQingdaoShandong 266000China

Post-translational modifications(PTM)are covalent modifications of proteins or peptides caused by proteolytic cleavage or the attachment of moieties to one or more amino *** play essential roles in biological function and regulation and have been linked with several *** of protein acylation(Kac),a type of PTM,are known to induce epigenetic regulatory processes that promote various ***,an increasing number of studies focusing on acylation modifications are being ***(Kbu)is a new acylation process found in animals and *** has been recently linked to the onset and progression of several diseases,such as cancer,cardiovascular diseases,diabetes,and vascular ***,the mode of action of certain drugs used in the treatment of lymphoma and colon cancer is based on the regulation of butyrylation levels,suggesting that butyrylation may play a therapeutic role in these *** addition,butyrylation is also commonly involved in rice gene expression and thus plays an important role in the growth,development,and metabolism of *** tools and analytical methods that could be utilized for the prediction and detection of lysine butyrylation have also been *** study reviews the potential role of histone Kbu,as well as the mechanisms underlying this *** also summarizes various enzymes and analytical methods associated with Kbu,with the goal of providing new insights into the role of Kbu in gene regulation and diseases.

关键词： Butyrylation Gene regulation Histone Post-translational modification Target treatment

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Application of machine learning algorithm for predicting gestational diabetes mellitus in early pregnancy

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Frontiers of Nursing 2021年第3期8卷 209-221页

作者： Li-Li Wei Yue-Shuai Pan Yan Zhang Kai Chen Hao-Yu Wang Jing-Yuan Wang Department of Nursing The Affiliated Hospital of Qingdao UniversityQingdaoShandong 266003China Intensive Care Unit The Affiliated Hospital of Qingdao UniversityQingdaoShandong 266003China Research Institute for Mathematics and Interdisciplinary sciences Qingdao University of Science and TechnologyQingdaoShandong 266061China Department of Critical Care and Respiratory Medicine The Affiliated Hospital of Qingdao UniversityQingdaoShandong 266003China

Objective:To study the application of a machine learning algorithm for predicting gestational diabetes mellitus(GDM)in early ***:This study identified indicators related to GDM through a literature review and expert *** women who had attended medical institutions for an antenatal examination from November 2017 to August 2018 were selected for analysis,and the collected indicators were retrospectively *** on Python,the indicators were classified and modeled using a random forest regression algorithm,and the performance of the prediction model was ***:We obtained 4806 analyzable data from 1625 pregnant *** these,3265 samples with all 67 indicators were used to establish data set F1;4806 samples with 38 identical indicators were used to establish data set *** of F1 and F2 was used for training the random forest *** overall predictive accuracy of the F1 model was 93.10%,area under the receiver operating characteristic curve(AUC)was 0.66,and the predictive accuracy of GDM-positive cases was 37.10%.The corresponding values for the F2 model were 88.70%,0.87,and 79.44%.The results thus showed that the F2 prediction model performed better than the F1 *** explore the impact of sacrificial indicators on GDM prediction,the F3 data set was established using 3265 samples(F1)with 38 indicators(F2).After training,the overall predictive accuracy of the F3 model was 91.60%,AUC was 0.58,and the predictive accuracy of positive cases was 15.85%.Conclusions:In this study,a model for predicting GDM with several input variables(e.g.,physical examination,past history,personal history,family history,and laboratory indicators)was established using a random forest regression *** trained prediction model exhibited a good performance and is valuable as a reference for predicting GDM in women at an early stage of *** addition,there are cer tain requirements for the propor tions of negative and posi

关键词： early prediction gestational diabetes mellitus machine learning algorithm random forest regression

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Broadband and high efficiency metal multi-layer dielectric grating based on non-quarter-wave coatings as a reflective mirror

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Chinese Physics B 2012年第9期21卷 353-358页

作者：张文飞孔伟金云茂金刘均海孙欣 College of Physics science Qingdao University Key Laboratory of Photonics Materials and technology in Universities of Shandong(qingdao University)

This article deals with designing a broadband and high efficiency metal multi-layer dielectric grating （MMDG） used to compress and stretch an ultrashort laser pulse. The diffraction characteristics of the IVIMDG are analysed by using the rigorous coupled-wave method. The multi-layer dielectric used as the reflective mirror is made up of non- quarter-wave coatings. Taking the diffraction efficiency of the -1 order as the value of merit function, the parameters such as groove depth, residual thickness, duty cycle, and reflective mirror are optimized to obtain broadband and high diffraction efficiency. The optimized MMDG shows an ultra-broadband working spectrum with the average efficiency exceeding 97% over 160 nm wavelength centred at 1053 nm and TE polarization. The optimized MMDG should be useful for chirped pulse amplification.

关键词： grating broadband non-quarter-wave coatings

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Enhanced charge extraction for all-inorganic perovskite solar cells by graphene oxide quantum dots modified TiO_(2)layer

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Frontiers of Chemical science and Engineering 2023年第5期17卷 516-524页

作者： Yili Liu Guoliang Che Weizhong Cui Beili Pang Qiong Sun Liyan Yu Lifeng Dong College of Materials science and Engineering Qingdao University of Science and TechnologyQingdao 266042China Department of Physics Hamline UniversitySt.PaulMN 55104USA

All-inorganic cesium lead bromide(CsPbBr_(3))perovskite solar cells have been attracting growing interest due to superior performance stability and low ***,low light absorbance and large charge recombination at TiO_(2)/CsPbBr_(3)interface or within CsPbBr_(3)film still prevent further performance ***,we report devices with high power conversion efficiency(9.16%)by introducing graphene oxide quantum dots(GOQDs)between TiO_(2)and perovskite *** recombination of interfacial radiation can be effectively restrained due to enhanced charge transfer *** with C-rich active sites can involve in crystallization and fill within the CsPbBr_(3)perovskite film as functional semiconductor *** work provides a promising strategy to optimize the crystallization process and boost charge extraction at the surface/interface optoelectronic properties of perovskites for high efficient and low-cost solar cells.

关键词： all inorganic perovskite solar cells graphene oxide quantum dots high performance stability

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Lactate metabolism in human health and disease

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Signal Transduction and Targeted Therapy 2022年第10期7卷 3687-3708页

作者： Xiaolu Li Yanyan Yang Bei Zhang Xiaotong Lin Xiuxiu Fu Yi An Yulin Zou Jian-Xun Wang Zhibin Wang Tao Yu Center for Regenerative Medicine Institute for Translational MedicineThe Affiliated Hospital of Qingdao University Department of Cardiac Ultrasound The Affiliated Hospital of Qingdao UniversityNo.16 Jiangsu RoadQingdao 266000China Department of Immunology School of Basic MedicineQingdao UniversityQingdao 266071China Department of Respiratory Medicine Qingdao Municipal HospitalQingdao 266011China Department of Cardiology The Affiliated Hospital of Qingdao UniversityNo.1677 Wutaishan RoadQingdao 266555China

The current understanding of lactate extends from its origins as a byproduct of glycolysis to its role in tumor metabolism,as identified by studies on the Warburg *** lactate shuttle hypothesis suggests that lactate plays an important role as a bridging signaling molecule that coordinates signaling among different cells,organs and *** is a posttranslational modification initially reported by Professor Yingming Zhao’s research group in *** studies confirmed that lactylation is a vital component of lactate function and is involved in tumor proliferation,neural excitation,inflammation and other biological *** indispensable substance for various physiological cellular functions,lactate plays a regulatory role in different aspects of energy metabolism and signal ***,a comprehensive review and summary of lactate is presented to clarify the role of lactate in disease and to provide a reference and direction for future *** review offers a systematic overview of lactate homeostasis and its roles in physiological and pathological processes,as well as a comprehensive overview of the effects of lactylation in various diseases,particularly inflammation and cancer.

关键词： metabolism inflammation organs

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Synchronization clusters located on epileptic onset zones in neocortical epilepsy

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Acta Epileptologica 2022年第4期5卷 233-241页

作者： Yanping Sun Yuqiang Song Hongjin Ren Haifang Zhu Yanning Wang Xiaoli Li Wenjing Yan Yuping Wang Department of Neurology Xuanwu HospitalCapital Medical UniversityBeijing100053China Department of Neurology The Affiliated Hospital of Qingdao UniversityQingdao266003China Faculty of Information Engineering and Automation Kunming University of Science and TechnologyKunming650500China School of science Yanshan UniversityQinhuangdao066004China State Key Laboratory of Cognitive Neuroscience and Learning Beijing Normal UniversityBeijing100875China

Background Brain function is thought to rely on complex interactions of dynamic neural systems,which depend on the integrity of structural and functional *** epilepsy is considered to result from excessive focal synchronization in the *** analysis of multichannel electrocorticography(ECoG)contributes to the understanding of and orientation of *** aim of this study was to explore the synchronization in multichannel ECoG recordings from patients with neocortical epilepsy and characterize neural activity inside and outside the onset *** Four patients with neocortical epilepsy,who became seizure-free for more than 1 year after surgery guided by ECoG monitoring,were included in this *** data recorded during pre-surgical evaluation were *** in phase and amplitude of different frequency bands between ECoG channels was analyzed using *** generated 100 surrogate data from the original ECoG data using Amplitude Adjusted Fourier Transform to calculate the enhanced *** relationship between synchronization characteristics and seizure onset zone was *** We found synchronization clusters in the 14–30 Hz and 30–80 Hz bands around the onset areas during both interictal and the beginning of ictal periods in all four *** The enhanced-synchronization clusters play a central role in epilepsy,and may activate the onset areas and contribute to the spreading of epileptiform activity.

关键词： Epilepsy Synchronization clusters ECoG Seizure onset areas

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CRISPR/Cas9 therapeutics:progress and prospects

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Signal Transduction and Targeted Therapy 2023年第2期8卷 558-580页

作者： Tianxiang Li Yanyan Yang Hongzhao Qi Weigang Cui Lin Zhang Xiuxiu Fu Xiangqin He Meixin Liu Pei-feng Li Tao Yu Institute for Translational Medicine The Affiliated Hospital of Qingdao UniversityNo.38 Dengzhou Road266021QingdaoPeople’s Republic of China Department of Immunology School of Basic MedicineQingdao University266021QingdaoPeople’s Republic of China Department of Cardiology People’s Hospital of RizhaoNo.126 Taian Road276827RizhaoPeople’s Republic of China Department of Microbiology Linyi Center for Disease Control and Prevention276000LinyiPeople’s Republic of China Department of Cardiac Ultrasound The Affiliated Hospital of Qingdao University266000QingdaoPeople’s Republic of China

Clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 9(Cas9)gene-editing technology is the ideal tool of the future for treating diseases by permanently correcting deleterious base mutations or disrupting disease-causing genes with great precision and efficiency.A variety of efficient Cas9 variants and derivatives have been developed to cope with the complex genomic changes that occur during ***,strategies to effectively deliver the CRISPR system to diseased cells in vivo are currently lacking,and nonviral vectors with target recognition functions may be the focus of future *** and physiological changes resulting from disease onset are expected to serve as identifying factors for targeted delivery or targets for gene *** are both varied and complex,and the choice of appropriate gene-editing methods and delivery vectors for different diseases is ***,there are still many potential challenges identified when targeting delivery of CRISPR/Cas9 technology for disease *** paper reviews the current developments in three aspects,namely,gene-editing type,delivery vector,and disease ***,this paper summarizes successful examples of clinical trials and finally describes possible problems associated with current CRISPR applications.

关键词： CRISPR/Cas9 editing delivery

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N,P-codoped porous carbon derived from chitosan with hierarchical N-enriched structure and ultra-high specific surface Area toward high-performance supercapacitors

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Journal of Materials science & technology 2021年第29期88卷 45-55页

作者： Xipeng Xin Na Song Ruiming Jia Bingnan Wang Hongzhou Dong Shuai Ma Lina Sui Yingjie Chen Qian Zhang Lifeng Dong Liyan Yu College of Materials science and Engineering Qingdao University of Science and TechnologyQingdao266042China School of Mathematics and Physics Qingdao University of Science and TechnologyQingdao266042China

In this work,a facile"carbonization-activation"strategy is developed to synthesize N,P-codoped hierarchical porous *** acid is innovatively introduced during the hydrothermal process to achieve in-situ P doping as well as create abundant pores,and the employment of sodamide is of vital importance to simultaneously serve as activating agent and N-source to succeed a high-level N ***,the obtained samples exhibit a unique three-dimensional hierarchical structure with an ultra-high specific surface area(3646 m^(2)g^(-1))and ultra-high N-doping level(9.81 at.%).Computational analyses confirm that N,P co-doping and higher N content can enhance active sites and widen potential differences of carbon materials to improve their *** as-prepared carbon materials demonstrate superior electrochemical performances,such as an ultra-high capacitance of 586 Fg^(-1)at 1 Ag^(-1),a superior rate capability of 409 Fg^(-1)at 20 Ag^(-1),and excellent long-term stability of 97%capacitance retention after10,000 cycles in 6 M ***,an assembled symmetric supercapacitor delivers a high energy density of 28.1 Wh kg^(-1)at the power density of 450 W kg^(-1)in 1 M Na_(2)SO_(4),demonstrating a great potential for applications in supercapacitors.

关键词： facile and cost-effective strategy Ultra-high specific surface area High-level heteroatoms doping High specific capacitance

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