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Quantification and timing of porosity evolution in tight sand gas reservoirs:an example from the Middle Jurassic Shaximiao Formation,western Sichuan,China

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Petroleum Science 2015年第2期12卷 207-217页

作者： Zheng-Xiang Lü su-juan ye Xiang Yang Rong Li Yuan-Hua Qing State Key Laboratory of Oil and Gas Reservoir Geology &Exploitation Chengdu University of Technology Exploration and Production Research Institute Sinopec Southwest Chengdu Institute of Geology and Mineral Resources PetroChina Tarim Oilfield Company

The diagenesis and porosity evolution of the Middle Jurassic Shaximiao sandstones were analyzed based on petrographic observations, X-ray diffractometry, scanning electron microscopy observations, carbon and oxygen stable isotope geochemistry, fluid inclusion mi- crothermometry, and thermal and burial history modeling results. The point count data show that secondary pores （av. 5.5 %） are more abundant than primary pores （av. 3.7 %） and are thus the dominant pore type in the Shaximiao sandstones. Analysis of porosity evolution indicates that alteration of sandstones mainly occurred during two paragenetic stages. Mechanical compaction and cementa- tion by early chlorite, calcite, and quartz typically decrease the depositional porosity （40.9 %） by an average of 37.2 %, leaving porosity of 3.7 % after stage I （〈85 ℃, 175-145 Ma）. The original intergranular porosity loss due to compaction is calculated to be 29.3 %, suggesting that mechanical compaction is the most significant diagenetic process in primary porosity destruction. Stage II can be further divided into two sub-stages （Stage IIa and Stage IIb）. Stage IIa （85-120 ℃, 145-125 Ma） is characterized by late dissolution, which enhanced porosity by 8.8 %, and the porosity increased from 3.7 % to 12.5 %. During stage IIb （〉120 ℃, 125-0 Ma）, the precipitation of late chlorite, calcite, quartz, and kaolinite destroyed 3.3 % porosity, leaving porosity of 9.2 % in the rock today.

关键词： Diagenesis Porosity evolution -Tight gas sandstones Jurassic Western Sichuan

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Triggerable Mutually Amplified Signal Probe Based SERS Microfluidics Platform for the Efficient Enrichment and Quantitative Detection of miRNA

Triggerable Mutually Amplified Signal Probe Based SERS Micro...

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第十一届全国化学生物学学术会议

作者： Xingxiang Wang Zhen-xing Wang Na Zhang Xun Liu Meng-lei Wang su-juan ye Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOE Qingdao University of Science and Technology

Sensitive detection of microRNAs（miRNAs） that serve as a disease marker could advance the diagnosis and treatment of *** methods used for quantitative detection of miRNAs,such as PCR-based approaches or the hybridization chain reaction,have presented challenges due to the complicated and time consuming-procedures that are *** this manuscript,a simple triggerable mutually amplified signal（TMAS） probe was designed and enriched within the center of a microfluidic chip and then used for one-step quantitative detection of microRNAs via surface enhanced Raman scattering（SERS） ***,many mutually amplified double strands are produced via an enzyme-free target strand displacement recycling reaction initiated by the target miRNA,that result in the generation of an enhanced SERS ***,microfluidic chips that utilize alternating current（AC） electrokinetic flow technology produce efficient mixing and rapid concentration to improve the DNA hybridization rate and further enhance the SERS signal *** method enables the sensitive and rapid detection of miR-21 in human breast cancer cells within 30 min with a detection limit of 2.33 *** with traditional methods,this novel method overcomes the shortcomings resulting from complex operations,and has the advantages of high sensitivity,short assay time,and reduced sample usage.

关键词： AC electrokinetics gold nanoparticles microRNAs microfluidic chip SERS

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A surface engineering strategy for the stabilization of zinc metal anodes with montmorillonite layers toward long-life rechargeable aqueous zinc ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 94-105页

作者： Wenbo Wang Ruifeng Xu Xu Zhang Peiyu Wang Bao Yang Bingjun Yang juan Yang Kailimai su Pengjun Ma Yanan Deng Xianfeng Fan Wanjun Chen Key Laboratory for Electronic Materials College of Electrical Engineering Northwest Minzu University Resource Chemistry and Energy Materials Research Center State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Institute for Materials and Processes School of Engineering University of Edinburgh

Rechargeable aqueous zinc-ion batteries （AZIBs） exhibit appreciable potential in the domain of electrochemical energy ***,there are serious challenges for AZIBs,for instance zinc dendrite growth,hydrogen evolution reaction （HER）,and corrosion side ***,we propose a surface engineering modification strategy for coating the montmorillonite （MMT） layer onto the surface of the Zn anode to tackle these issues,thereby achieving high cycling stability for rechargeable *** results reveal that the MMT layer on the surface of the Zn anode is able to provide ordered zincophilic channels for zinc ions migration,facilitating the reaction kinetics of zinc *** functional theory（DFT） calculations and water contact angle （CA） tests prove that MMT@Zn anode exhibits superior adsorption capacity for Zn2+and better hydrophobicity than the bare Zn anode,thereby achieving excellent cycling ***,the MMT@Zn||MMT@Zn symmetric cell holds the stable cycling over 5600 h at 0.5 mA cm-2and 0.125 m A h cm-2,even exceeding 1800 h long cycling under harsh conditions of 5 m A cm-2and 1.25 m A h *** MMT@Zn||V2O5full cell reaches over 3000 cycles at 2 A g-1with excellent rate ***,this surface engineering modification strategy for enhancing the electrochemical performance of AZIBs represents a promising application.

关键词： surface engineering strategy Montmorillonite layer Protection mechanism of Zn anode Cycling stability Aqueous zinc ion batteries

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Bullous pemphigoid associated with acquired hemophilia A: A case report

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World Journal of Clinical Cases 2025年第4期13卷 28-33页

作者： su-ye Hu Meng-Can Li Zi-Jia Hao Xu-Ya Chai Pei-Sai Li Yang Liu Li-Xia Liu Ying Xu Pan-Pan Yang Ling-E Li Department of Dermatology Shijiazhuang Traditional Chinese Medicine HospitalShijiazhuang 050051Hebei ProvinceChina Graduate School Hebei University of Traditional Chinese MedicineShijiazhuang 050051Hebei ProvinceChina Department of Pathology Shijiazhuang Traditional Chinese Medicine HospitalShijiazhuang 050051Hebei ProvinceChina

BACKGROUND Acquired hemophilia A (AHA) is a rare and potentially severe bleeding disordercaused by circulating autoantibodies against factor Ⅷ (FⅧ). In approximately50% of the patients, the condition is associated with autoimmune diseases,cancers, medication use, pregnancy, and the post-partum period. Bullous pemphigoid(BP) is a chronic autoimmune subepidermal blistering disease associatedwith tissue-bound and circulating autoantibodies against BP antigens 180 (BP180)and 230 (BP230). AHA-associated BP has a high mortality rate;hence, the understandingof this disease must *** suMMARY A 69-year-old man presented with erythema, blisters, blood blisters, and crustsaccompanied by severe pruritus for more than 20 days, and ecchymosis andswelling on his left upper arm for 3 days. Pathological examination revealed asubepidermal blister that contained eosinophils. Laboratory tests showed that theBP180 autoantibody levels had increased, isolated activated partial thromboplastintime was notably prolonged (115.6 s), and coagulation FⅧ activity wasextremely low (< 1.0%). Furthermore, the FⅧ inhibitor titer had greatlyincreased (59.2 Bethesda units). Therefore, the patient was diagnosed as having BP associated with AHA, prescribed 0.05% topical halometasone cream, and transferred to a higher-level hospitalfor effective treatment;however, he died after 2 *** AHA associated BP is rare, dangerous, and has a high mortality rate. Therefore, its timely diagnosis and effectivetreatment are necessary.

关键词： Bullous pemphigoid Acquired hemophilia A Acquired hemophilia A FactorⅧ Case report

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Synthesis and Characterization ofN-(2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosyl)-thiocarbamic-4-hydroxy-benzoyl Hydrazine Dihydrate

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Chemical Research in Chinese Universities 2005年第5期21卷 545-548页

作者： ZHANG Shu-sheng ye su-juan LI Xue-mei GU Shan-shan LIU Qing College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China

A new complex of N-（ 2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl ） -thiocarbamic 4-hydroxy-benzoyl hydrazine dihydrate, C22 H27 N3 O10S · 2H2 O, was synthesized and its structure was determined by X-ray crystallography and TG/DTG methods. The compound belongs to the orthorhombic system, which crystallizes in space group P212121 , with a = 1. 0275 （ 3 ）, b = 1. 3419 （4）, c = 2. 0234 （ 6 ）, V = 2. 7899 （ 16 ） nm^3, and Z = 4. The hexopyranosyl ring adopts a ^4C1 conformation. All the substituents are at equatorial positions. The molecules are linked into a three-dimensional framework via intermolecular interactions. Atoms O5 and O9 show oositional disorders.

关键词： N-(2,3,4,6-Tetra-O-aeetyl-β-D-glueopyranose Synthesis Crystal structure Characterization

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Preparation of hysteresis-free flexible perovskite solar cells via interfacial modification

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Journal of Materials Science & Technology 2021年第2期61卷 213-220页

作者： Xiaofang ye Hongkun Cai Jian su Jingtao Yang Jian Ni juan Li Jianjun Zhang Department of Electronic Science and Technology College of Electronic Information and Optical EngineeringNankai UniversityTianjin300350China Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin300350China

In recent years, flexible perovskite solar cells have received extensive attention and rapid development due to their advantages of lightweight, portability, wearability and applications in near-space. However,due to the limitations of their preparation process and other factors, high-efficiency and large-area flexible perovskite solar cells still have a lot of room for development. In our work, a flexible perovskite solar cell(PEN/ITO/Sn O2/KCl/Cs0.05(MA0.17 FA0.83)0.95 Pb(I0.83 Br0.17)3/spiro/Au) was prepared using a low temperature(no higher than 100°C) solution process, and the device with the highest efficiency of 16.16%was obtained by adjusting the concentration of the KCl modified layer. Meanwhile, the efficiency of the large area(1 cm2) flexible solar cell was higher than 13%. At the same time, the passivation of the KCl interface modification layer inhibits the formation of the defect states, which reduced the surface recombination of the perovskite and improved the carrier transport performance, and the hysteresis effect of the device was also reduced accordingly.

关键词： Flexible solar cells Perovskite KCl NaCl Interfacial modification

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Advances in in-situ characterizations of electrode materials for better supercapacitors

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Journal of Energy Chemistry 2021年第3期30卷 242-253页

作者： Xiaoli su Jianglin ye Yanwu Zhu Hefei National Research Center for Physical Sciences at the Microscale &Department of Materials Science and Engineering&CAS Key Laboratory of Materials for Energy ConversionIf i-ChEMUniversity of Science and Technology of ChinaHefei 230026AnhuiChina

In past decades,the performance of supercapacitors has been greatly improved by rationalizing the electrode materials at the ***,there is still a lack of understanding on how the charges are efficiently stored in the electrodes or transported across the electrolyte/electrode *** it is very challenging to investigate the ion-involved physical and chemical processes with single experiment or computation,combining advanced analytic techniques with electrochemical measurements,i.e.,developing in-situ characterizations,have shown considerable prospect for the better understanding of behaviors of ions in electrodes for ***,we briefly review several typical in-situ techniques and the mechanisms these techniques reveal in charge storage mechanisms specifically in *** strategies for designing better electrode materials are also discussed.

关键词： Electric double layer capacitor Pseudocapacitor In-situ technique Charge storage mechanism

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Fundamental groups, homology equivalences and one-sided h-cobordisms

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Science China Mathematics 2015年第9期58卷 2003-2014页

作者： su Yang ye ShengKui Hua Loo-Keng Key Laboratory of Mathematics Chinese Academy of Sciences Department of Mathematical Sciences Xi'an Jiaotong-Liverpool University

We give a necessary and sufficient condition for the fundamental group homomorphism of a map between CW-complexes(manifolds) to induce partial homology equivalences. As applications, we obtain characterizations of fundamental groups of homology spheres and Moore manifolds. Moreover, a classification of one-sided h-cobordism of manifolds up to diffeomorphisms is obtained, based on Quillen's plus construction with Whitehead torsions.

关键词： Quillen’s plus construction homology equivalence one-sided h-cobordism

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Direct solution for fixed source location using well-posed TDOA and FDOA measurements

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Journal of Systems Engineering and Electronics 2020年第4期31卷 666-673页

作者： LIU Congfeng YUN Jinwei su juan Research Institute of Electronic Countermeasure Xidian UniversityXi’an 710071China

Based on the time differences of arrival(TDOA) and frequency differences of arrival(FDOA) measurements of the given planar stationary radiation source, the joint TDOA/FDOA location algorithm which solves the location of the target directly is proposed. Compared with weighted least squares(WLS) methods,the proposed algorithm is also suitable for well-posed conditions,and gets rid of the dependence on the constraints of Earth's surface. First of all, the solution formulas are expressed by the radial range. Then substitute it into the equation of the radial range to figure out the radial range between the target and the reference station. Finally use the solution expression of the target location to estimate the location of the target accurately. The proposed algorithm solves the problem that WLS methods have a large positioning error when the number of observation stations is not over-determined. Simulation results show the effectiveness of the proposed algorithm, including effectively increasing the positioning accuracy and reducing the number of observatories.

关键词： passive location joint time differences of arrival/frequency differences of arrival(TDOA/FDOA)location direct solution stationary emitter well-posed equations

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Precise drag prediction of airfoil flows by a new algebraic model

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Acta Mechanica Sinica 2020年第1期36卷 35-43页

作者： Meng-juan Xiao Zhen-su She State Key Laboratory for Turbulence and Complex Systems College of EngineeringPeking UniversityBeijing100871China

We report the results of accurate prediction of lift(C L)and drag(C D)coefficients of two typical airfoil flows(NACA0012 and RAE2822)by a new algebraic turbulence model,in which the eddy viscosity is specified by a stress length(SL)function predicted by structural ensemble dynamics(SED)*** accuracy of the prediction of C D with error of a few counts(one count is 10−4)and of C L with error under 1%-2%are uniformly obtained for varying angles of attack(AoA),indicating an order of magnitude improvement of drag prediction accuracy compared to currently used models(typically around 20 to 30 counts).More interestingly,the SED-SL model is distinguished with fewer parameters of clear physical meaning,which quantify underlying turbulent boundary layer(TBL)with a universal multi-layer structure,and is thus promising to be more easily generalizable to complex *** use of the new model for the calibration of flow condition in experiment and the extraction of flow physics from numerical simulation data of aeronautic flows are discussed.

关键词： Lift and drag coefficients Airfoil Flows Stress Length Structural ensemble dynamics

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