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Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： Mingming Zhang Hanyu wu Qi Chen Jiaxin Yang Bonan Liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

NIR photothermal enhancement to achieve high-efficiency nitrogen reduction to ammonia by polyoxometalates@Fe-polydopamine

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Nano Research 2025年第1期18卷 118-128页

作者： Xiaofei Chen Lixin wu Feng Bai Key Laboratory for Special Functional Materials of Ministry of Education National&Local Joint Engineering Research Center for High-Efficiency Display and Lighting TechnologySchool of Nanoscience and Materials EngineeringHenan UniversityKaifeng 475004China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China

The development of atmospheric pressure N_(2)reduction to NH_(3)is attracting much attention in green chemistry,yet it is still a challenge to obtain satisfactory activity under mild ***,an efficient near-infrared(NIR)photothermal catalysis reduction of N_(2)constitutes an occurrence is *** or without V-substitute polyoxometalates(POMs)loaded on the surface of Fechelated polydopamine(Fe-PDA)photothermal support through the electrostatic interactions,NIR photothermal catalysts POMs@Fe-PDA are *** induction of“FeV”cofactor facilitates electron transfer between V(V)/V(IV)&Fe(III)/Fe(II)and N_(2),thereby activating N_(2)*** synergy between the catalytic activity of V-POMs and the local NIR photothermal effect of Fe-PDA dramatically enhances N_(2)***,PMo_(10)V_(2)@Fe-PDA exhibits a significantly enhanced NH_(3)production rate of 181.1μmol·LN^(-1)with a turnover frequency of 1006.1 mmol·MN^(-1)·hN^(-1)under 808 nm NIR laser radiation,being the highest values reported at atmospheric *** expect that this work could provide an alternative approach for photothermal catalysis N_(2)reduction under mild conditions.

关键词： polyoxometalate near-infrared photothermal catalysis N_(2)reduction mild condition

Brain-derived neurotrophic factor plays with TRiC:focus on synaptic dysfunction in Huntington’s disease

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Neural Regeneration Research 2025年第10期20卷 2919-2920页

作者： Yingli Gu Kijung Sung Chengbiao wu Department of Neurosciences University of California San DiegoLa JollaCAUSA

Brain-derived neurotrophic factor(BDNF)exerts pleiotropic effects on brain processes including psychiatric disorders,aging,neurodegeneration,and metabolic homeostasis.A simple PubMed search using the key word“BDNF,”to date,yields over 33,000 *** fundamental biology to potential therapeutic applications,BDNF has clearly garnered extensive and significant attention in the field of neurobiology research.

关键词： Huntington homeostasis therapeutic

Studies on Antineoplastic Effect by Adjusting Ratios of Targeted-ligand and Antitumor Drug

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Chinese Journal of Polymer Science 2014年第5期32卷 540-550页

作者： hua Guo Cheng-ling Yang Wei Wang Yu-kun wu Quan-yong Lai 袁直 Key Laboratory of Functional Polymer Materials Ministry of Education Institute of Polymer Chemistry Nankai University and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)

A series of drug delivery systems based on a sodium alginate derivative were prepared by mixing glycyrrhetinic acid （GA） and doxorubicin （DOX） conjugates at different ratios. GA （a liver-targeting ligand） and DOX （an antitumor drug） were both conjugated to oligomeric glycol monomethyl ether-modified sodium alginate （ALG-mOEG） for prolonged duration of action. These NP-based delivery systems exhibited active cell uptake and cytotoxicity in vitro and liver-targeted distribution and anti-tumor activity in vivo. In addition, nanoparticles with a 1：1 （W：W） ratio of GA-ALG-mOEG and DOX-ALG-mOEG （NPs-3） showed the highest cellular uptake and cytotoxicity in vitro and liver-targeted distribution and anti-tumor activity in vivo. Specifically, when mixed nanoparticles defined as NPs-3 were injected in mice, liver DOX concentration reached 61.9 μg/g 3 h after injection, and AUC0-∞ and t1/2 of DOX in liver reached 4744.9 μg·h/g and 49.5 h, respectively. In addition, mice receiving a single injection of NPs-3 exhibited much slower tumor growth （88.37% reduction in tumor weight） 16 days after injection compared with placebo. These results indicate that effective cancer treatment may be developed using mixed NP delivery systems with appropriate ratio of targeted ligand and drug.

关键词： Sodium alginate derivative Drug delivery Targeted-ligand Antitumor drug Antineoplastic effect.

Multivariate Curve Resolution Combined with On-line Infrared Spectroscopy for Researching the Synthesis Mechanism of 3,4-Bis（4 ＇-aminofurazano-3 ＇） fu roxa n

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Chemical Research in Chinese Universities 2013年第4期29卷 759-764页

作者： wu Nan SUN kun-lun LIU Yu YANG Xiao-feng LI hua Institute of Analytical Science College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China

3,4-Bis（4＇-aminofurazano-3＇）furoxan（DATF）, one of a new generation of high energy density materials, shows lots of interesting properties such as lower sensitivity, excellent thermal stability and superior detonation perfor- mance in chemistry and physics. In this paper, on-line infrared（IR） spectroscopy was used to monitor the synthesis process of DATF. The concentration profiles and IR spectra of the components were determined by analyzing the IR data via principal component analysis（PCA）, evolving factor analysis（EFA） and multivariate curve resolution-alternating least squares（MCR-ALS）. The geometric configurations of reactant, intermediates and product were optimized with the density functional theory（DFT） at B3LYP/6-3 l＋G（d, p） level. Their vibrational frequencies and IR spectra were obtained on the basis of vibrational analysis. The result obtained by the chemometric resolution methods agreed well with that obtained by quantum chemical calculation method, which demonstrated the reliability of the proposed chemometric resolution methods. The unstable intermediate 3-amino-4-oxycyanofurazan（AOF） was confirmed via comparing the IR spectra resloved by chemometric resolution methods with those calculated by B3LYP/6-3 l＋G（d,p） and analyzed by MCR-ALS. Finally, the possible synthesis mechanism of DATF was deduced by analyzing the above IR spectra.

关键词： Evolving factor analysis(EFA) Multivariate curve resolution-alternating least square(MCR-ALS) On-line infrared spectrum Quantum chemical calculation method Synthesis mechanism

A Control Algorithm Derived from Immune Principle

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Journal of China University of Mining and Technology 2006年第3期16卷 344-348页

作者： LIU Jian-hua YAN De-kun wu Li-bo School oflnformation and Electrical Engineering China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China Department of Mathematics Linyi Normal University Linyi Shandong 276005 China

Artificial immune systems (AIS) are biologically inspired problem solvers having been successfully applied in many fields. A controller was designed according to the interactive mechanism between immune molecules. Multiform antigens were constructed and corresponding antibodies designed. The concept of “antibiotic” is presented, whose features and injection time as well as construction method discussed. Based on biological immune mechanism, some fuzzy rules are summarized and used in constructing the controller. The result shows that this controller is simple in structure and can be easily computed, so it is suitable for real time control. The control variable can change adaptively according to the error and its change tendency. Therefore the controller is very flexible and can be directly used in controlling some nonlinear plants. To test the validity of the algorithm, two simulation examples are given, one is linear, and the other is nonlinear. The Simulation results indicate that the control performance of this algorithm is better than that of the conventional PID.

关键词： artificial immune system control antigen antibody antibiotic

Intra-day variability of BL Lacertae from 2016 to 2018

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Research in Astronomy and Astrophysics 2021年第10期21卷 187-196页

作者： Tian Li Jiang-hua wu Nan-kun Meng Yan Dai Xiao-Yuan Zhang Department of Astronomy Beijing Normal UniversityBeijing 100875China

We monitored BL Lacertae in the B,V,R and I bands for 14 nights during the period of *** source showed significant intra-day variability on 12 *** performed color-magnitude analysis and found that the source exhibited bluer-when-brighter *** bluer-when-brighter behavior is at least partly caused by the larger variation amplitude at shorter *** variations at different wavelengths are correlated well and show no inter-band time lag.

关键词： galaxies:active BL Lacertae objects:individual:BL Lacertae galaxies:photometry

Neuronal regulated cell death in aging-related neurodegenerative diseases:key pathways and therapeutic potentials

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Neural Regeneration Research 2025年第8期20卷 2245-2263页

作者： Run Song Shiyi Yin Jiannan wu Junqiang Yan Department of Neurology The First Affiliated HospitalCollege of Clinical Medicine of Henan University of Science and TechnologyLuoyangHenan ProvinceChina Neuromolecular Biology Laboratory The First Affiliated HospitalCollege of Clinical Medicine of Henan University of Science and TechnologyLuoyangHenan ProvinceChina

Regulated cell death(such as apoptosis,necroptosis,pyroptosis,autophagy,cuproptosis,ferroptosis,disulfidptosis)involves complex signaling pathways and molecular effectors,and has been proven to be an important regulatory mechanism for regulating neuronal aging and ***,excessive activation of regulated cell death may lead to the progression of aging-related *** review summarizes recent advances in the understanding of seven forms of regulated cell death in age-related ***,the newly identified ferroptosis and cuproptosis have been implicated in the risk of cognitive impairment and neurodegenerative *** forms of cell death exacerbate disease progression by promoting inflammation,oxidative stress,and pathological protein *** review also provides an overview of key signaling pathways and crosstalk mechanisms among these regulated cell death forms,with a focus on ferroptosis,cuproptosis,and *** instance,FDX1 directly induces cuproptosis by regulating copper ion valency and dihydrolipoamide S-acetyltransferase aggregation,while copper mediates glutathione peroxidase 4 degradation,enhancing ferroptosis ***,inhibiting the Xc-transport system to prevent ferroptosis can increase disulfide formation and shift the NADP^(+)/NADPH ratio,transitioning ferroptosis to *** insights help to uncover the potential connections among these novel regulated cell death forms and differentiate them from traditional regulated cell death *** conclusion,identifying key targets and their crosstalk points among various regulated cell death pathways may aid in developing specific biomarkers to reverse the aging clock and treat age-related neurodegenerative conditions.

关键词： apoptosis autophagy cuproptosis disulfidptosis ferroptosis necroptosis neurodegenerative disease neurological aging diseases PANoptosis pyroptosis

A privacy-preserving group encryption scheme with identity exposure

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Frontiers of Computer Science 2022年第5期16卷 237-238页

作者： Chuan-kun wu School of Information Science and Engineering Linyi UniversityLinyi 276000China

1 Introduction At the end of December 2019,a new kind of contagious disease known as COVID-19 was found and spread *** event reflects that early whistleblowing is ***,the fear of potential over-responsibility could cause hesitation of some discoverers of potential critical events to blow the whistle at the earliest possible *** is noticed that,to set up a platform accepting anonymous messages from public as whistleblowing messages is not a good approach,because there might be a considerable amount of *** way to achieve this property is the anonymous authentication mechanism,such as group signature[1]and ring signature[2].However,whistleblowing with privacy protection has more security requirements that cannot be provided by group signatures and ring signatures.

关键词： signature preserving scheme