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A kinetic study and factor analysis of solar thermochemical membrane reactors for syngas production

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Science China Technological Sciences 2025年第1期 207-221页

作者： Jiaxin XING Chao XU Xiangyu SUN Xin XIA Fei jin Qiongqiong jiang Jiale GAO Key Laboratory of Power Station Energy Transfer Conversion and System of MOE School of Energy Power and Mechanical EngineeringNorth China Electric Power University Department of Chemistry University College London School of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyState Ethnic Affairs CommissionNorth Minzu University

Solar thermochemical conversion technologies are promising for effectively utilizing solar energy by capturing the full spectrum of solar radiation. To overcome the challenges of low energy conversion efficiency and intermittency faced by solar thermochemical conversion, these technologies can be effectively integrated with membrane reactor technology. Although the performance of solar thermochemical membrane reactors has been experimentally tested, the chemical reactions and oxygen transport mechanisms during the energy conversion process remain poorly understood. This study introduces a resistance network model to elucidate the interactions between interfacial reactions and bulk diffusion during simultaneous oxidationreduction reactions on both sides of the membrane. We analyzed the oxygen flux of the membrane reactor under various operating conditions using this model to identify the reaction/transport-limiting side of the overall process. The most effective solar membrane reactor configuration utilizes natural gas and CO2, facilitating clean conversion of fossil fuels with significant advantages in fuel production and energy efficiency. Introducing CH4lowers the overall reaction temperature, maintains low oxygen partial pressure on the sweep side, and produces a synthesis gas with a 2:1 H2/CO molar ratio. Finally, a sensitivity analysis was used to explore the relationship between overall fuel production performance and operational parameters,highlighting the critical role of this research in enhancing the reaction and transport performance of membrane reactors and advancing the development of solar-driven thermochemical fuel production technologies.

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Sky location of massive black hole binaries in the foreground of Galactic white dwarf binaries

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 97-108页

作者： Pan Guo Hong-Bo jin Cong-Feng Qiao Yue-Liang Wu The International Centre for Theoretical Physics Asia-Pacific University of Chinese Academy of Sciences The School of Physical Sciences University of Chinese Academy of Sciences Institute for Frontiers in Astronomy and Astrophysics Beijing Normal University National Astronomical Observatories Chinese Academy of Sciences Institute of Theoretical Physics Chinese Academy of Sciences

For space-based gravitational wave （GW） detection,the main noise source for massive black hole binaries （MBHBs） is attributed to approximately 10～7double white dwarf binaries in the *** a GW source,the amplitude of the detector response,recorded by a space-based gravitational wave detector,exhibits a modulation effect with a year period when observing the source from various orbital *** the adverse conditions mentioned above,where there is a strong foreground noise and annual modulation in the signals,we employed the wavelet transform and the strong-amplitude relevant orbital position search methods,which allows the weak MBHB sources to achieve higher locating *** detail,for two MBHB sources of lower intensity,the precision of luminosity distance,represented by the ratio ?DL/DLat the 95%confidence level,is enhanced by factors of ～*** angular resolutions,denoted by??s,are enhanced by a factor of ～*** improvements increase the number of detectable GW sources,facilitate multi-messenger follow-up observations and provide constraints on the cosmological constant.

关键词： space-based gravitational wave detection gravitational waves massive black hole binaries

Effects of Ag layers on the SiO2/FePt thin films deposited by magnetron sputtering

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Rare Metals 2008年第1期27卷 13-17页

作者： FAN Jiuping XU Xiaohong WANG Fang jiang Fengxian TIAN Baoqiang jin tao School of Chemistry and Materials Science Shanxi Normal University Linfen 041004 China

The effects of Ag layers with different locations and thicknesses on the structural and magnetic property of SiO2/FePt multilayer films were *** non-magnetic Ag layer plays an important role in inducing（001） orientation and ordering of FePt grains,as well as the SiO2-doping reducing the grain size and the magnetic exchange coupling between *** the 10 nm Ag layer is moved from the bottom to the top of the SiO2/FePt multilayer film,the coercivity gradually decreases;the largest difference between the out-of-plane coercivity and the in-plane one is obtained in the sample of [SiO2（2 nm）/FePt（3 nm）]3/Ag（10 nm）/[SiO2（2 nm）/FePt（3 nm）]***,the location of Ag layers was fixed and the thickness was *** XRD curves suggest that the intensity of the（001） peak becomes the strongest with the addition of 10 nm Ag layers.

关键词： [SiO2/FePt]5 multilayer perpendicular orientation magnetron sputtering coercivity

Transcriptional proffling between yellow-and black-seeded Brassica napus reveals molecular modulations on flavonoid and fatty acid content

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Journal of Integrative Agriculture 2022年第8期21卷 2211-2226页

作者： RONG Hao YANG Wen-jing XIE tao WANG Yue WANG Xia-qin jiang jin-jin WANG You-ping jiangsu Provincial Key Laboratory of Crop Genetics and Physiology Yangzhou UniversityYangzhou 225009P.R.China Joint International Research Laboratory of Agriculture and Agri-Product Safety Ministry of Education of ChinaYangzhou UniversityYangzhou 225009P.R.China

Brassica napus is an important cash crop broadly grown for the vegetable and oil ***-seeded *** is preferred by breeders due to its improved oil and protein quality,less pigments and lignin compared with the blackseeded *** study compared the differences in flavonoid and fatty acid contents between yellow rapeseed from the progenies of ***-Sinapis alba somatic hybrids and the black-seeded counterpart using RNA-seq *** HPLC-PDA-ESI(-)/MSanalysis,it was found that phenylpropanoids and flavonoids(i.e.,isorhamnetin,epicatechin,kaempferol,and other derivatives)in yellow seed were significantly lower than those in black *** fatty acid(FA)content in yellow rapeseed was higher than that in black rapeseed due to the variation of C16:0,C18:0,C18:1,C18:2,and C18:3 ***-seq analysis of seeds at four and five weeks after flowering(WAF)indicated that differentially expressed genes(DEGs)between black and yellow rapeseeds were enriched in flavonoid and FA biosynthesis,including BnTT3,BnTT4,BnTT18,and ***,genes related to FA biosynthesis,desaturation and elongation(FAD3,LEC1,FUS3,and LPAT2)in yellow seed were up-regulated compared to those in black seed,while genes involved in beta-oxidation cycle(AIM1 and KAT2)of yellow seed were down-regulated compared to those in black *** DEGs related to the variation of flavonoids,phenylpropanoids,and FAs would help improve the knowledge of yellow seed character in *** and promote rapeseed improvement.

关键词： rapeseed gene expression analysis fatty acid composition phenolic content yellow seed

FK506 contributes to peripheral nerve regeneration by inhibiting neuroinflammatory responses and promoting neuron survival

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Neural Regeneration Research 2025年第7期20卷 2108-2115页

作者： Yuhui Kou Zongxue jin Yusong Yuan Bo Ma Wenyong Xie Na Han Department of Trauma and Orthopedics Peking University People’s HospitalBeijingChina National Center for Trauma Medicine Peking University People’s HospitalBeijingChina Key Laboratory of Trauma and Neural Regeneration(Peking University) Ministry of EducationBeijingChina Trauma Medicine Center Peking University People’s HospitalBeijingChina Department of Orthopedics China-Japan Friendship HospitalBeijingChina

FK506(Tacrolimus)is a systemic immunosuppressant approved by the *** and Drug ***506 has been shown to promote peripheral nerve regeneration,however,its precise mechanism of action and its pathways remain *** this study,we established a rat model of sciatic nerve injury and found that FK506 improved the morphology of the injured sciatic nerve,increased the numbers of motor and sensory neurons,reduced inflammatory responses,markedly improved the conduction function of the injured nerve,and promoted motor function *** findings suggest that FK506 promotes peripheral nerve structure recovery and functional regeneration by reducing the intensity of inflammation after neuronal injury and increasing the number of surviving neurons.

关键词： FK506 inflammation motor neurons nerve regeneration neuron peripheral nerve injury sensory neurons

Interaction Mechanism of Nano-silicon Dioxide Modified by Poly（amidoamine） Dendrimers

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Chinese Journal of Chemical Physics 2012年第5期25卷 592-604,I0004页

作者： tao jin Xiao-yu Li College of Material Science and Engineering Shandong University of Science and TechnologyQingdao 265590China College of Material Science and Engineering Beijing University of Chemical TechnologyBeifing100020China

To gain insight into the attachment of =Si^＋（SC） ion （regarded as guest） to the lowest generation, NH2-terminated poly（amidoamine）（PAMAM） dendrimers （regarded as host） in the liquid phase, density functional theory is used to investigate the structures and energetics of the host-guest complex. The effect of solvent on the structures and energetics is also investigated. Various initial configurations of the ion bound to PAMAM are tested, and two stable conformers are found, i.e, types A （=Si^＋ is bound to the amine site） and C （=Si^＋ is bound to the amide site）. Types A and C are the most stable due to the chemical bond formations of Si-N° （amine nitrogen atoms） and Si-O, respectively. The IR spectra for the lowest energy conformers are thoroughly analyzed and compared with the available experimental data.

关键词： Poly(amidoamine) Nano-silicon dioxide Configuration Density functionaltheory

Intramolecular Hydrogen Bond Improved Durability and Kinetics for Zinc‑Organic Batteries

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Nano-Micro Letters 2024年第3期16卷 138-148页

作者： Tianjiang Sun Jun Pan Weijia Zhang Xiaodi jiang Min Cheng Zhengtai Zha Hong jin Fan Zhanliang tao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage CenterCollege of ChemistryNankai UniversityHaihe Laboratory of Sustainable Chemical TransformationsTianjin 300071People’s Republic of China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and EngineeringTongji UniversityShanghai 200092People’s Republic of China

Organic compounds have the advantages of green sustainability and high designability,but their high solubility leads to poor durability of zinc-organic ***,a high-performance quinone-based polymer(H-PNADBQ)material is designed by introducing an intramolecular hydrogen bonding(HB)*** intramolecular HB(C=O⋯N-H)is formed in the reaction of 1,4-benzoquinone and 1,5-naphthalene diamine,which efficiently reduces the H-PNADBQ solubility and enhances its charge transfer in *** situ ultraviolet-visible analysis further reveals the insolubility of H-PNADBQ during the electrochemical cycles,enabling high durability at different current ***,the H-PNADBQ electrode with high loading(10 mg cm^(-2))performs a long cycling life at 125 mA g^(-1)(>290 cycles).The H-PNADBQ also shows high rate capability(137.1 mAh g^(−1)at 25 A g^(−1))due to significantly improved kinetics inducted by intramolecular *** work provides an efficient approach toward insoluble organic electrode materials.

关键词： Zn-organic batteries H-PNADBQ polymer Intramolecular hydrogen bond Reduced solubility Improvedπ-conjugated level

Timed RR-interval Scatter Plots and Reverse Technology

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Current Medical Science 2020年第6期40卷 1191-1202页

作者： jin-tao XIANG Department of Cardiology Remin HospitalWuhan UniversityWuhan 430060China

Lorenz-RR scatter plot has an obvious shortcoming in that it does not indicate the time when the scatter point *** the Lorenz RR scatter plot,one cannot know the time during which the cardiac rhythms take *** occurrence of cardiac rhythms is time-related,time should be introduced to such *** this study,time was used as abscissa and RR interval(the time interval between the previous RR wave and the R wave)as the ordinate and time was compressed into a visually observable length,and thereby a timed RR-interval scatter plot,or t-RR scatter plot,for short,was *** t-RR scatter plot,the patterns were band-shaped or were of linear *** the t-RR plot,the sinus rhythm presented bands of various widths,with the spiculate or burred upper and lower boundaries,having diurnal *** beats showed separate layers(“stratification”),the layer number corresponding the number of *** simple premature beats,the layers were clearly *** parasystole rhythm,the upper and lower bands or layers might become *** arial premature beats,the space or distance between layers *** premature beats presented equal space or distance between *** tachycardia,the lower layer became a“solid”*** atrial fibration,the“stratification”disappeared,presenting thicker or widened layers or bands,with neat lower *** atrial flutter,the layers went parallel,with the layers being evenly separated or some distances being exact multiples of *** second degree atrioventricular block displayed two layers,the lower and upper bands being equally away from the X-axis,presenting a straight line(pacing at a fixed rate)or a thicker or wider bands,with a neat upper boundary(the lowest pacing rate).When the scatter plot presented uncharacteristic patterns or had some scattered points,which rendered diagnosis difficult,a reverse technology could be ***,upon selection of scattered points,they were subje

关键词： electrocardiogram dynamic electrocardiogram review timed RR-interval scatter plot methodology

Strain Engineering for the Kapitza Resistance of the ZrO_(2)/α-Al_(2)O_(3)and YSZ/α-Al_(2)O_(3)Interfaces

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Acta Mechanica Solida Sinica 2022年第1期35卷 101-112页

作者： Yixuan Xue jin-Wu jiang Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200072China

The Kapitza resistance is of fundamental importance for the thermal stability of the interface between the ceramic top coat and the thermal growth oxide layer in the thermal barrier coating structure,which is widely used to protect high-temperature components in current gas turbine *** top coat typically consists of the ZrO_(2)partially stabilized by 8%Y2O3(YSZ),and the main component of the thermal growth oxide isα-Al_(2)O_(3).In this work,the Kapitza resistance is found to be a small value of 0.69 m^(2)K/GW for the YSZ/α-Al_(2)O_(3)interface based on the heat dissipation simulation *** indicates that the localization of thermal energy is rather weak,which is beneficial for the thermal stability of the YSZ/α-Al_(2)O_(3)*** Kapitza resistance can be further reduced to 0.50 m^(2)K/GW by a mechanical or thermal compressive strain of 8%.To explore the underlying mechanism for this strain effect,we analyze the phonon vibration and the microscopic deformation in the interface *** is revealed that the interface becomes denser through the compression-induced twisting of some Al-O_(zr)and A1-O_(Al)chemical bonds in the interface region,which is responsible for the reduction in the Kapitza *** temperature effect and crystal size effect on the Kapitza resistance of the YSZ/α-Al_(2)O_(3)interface are also systematically *** findings shall provide valuable information for further understanding of the thermal conductivity and thermal stability of the thermal barrier coating structures.

关键词： Kapitza resistance Compressive strain Temperature Size