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EFFECTS OF THE ECCENTRIC TOOL AND SOURCE MISMATCH ON ACOUTIC DIPOLE LOGGING

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EFFECTS OF THE ECCENTRIC TOOL AND SOURCE MISMATCH ON ACOUTIC...

2013全国压电和声波理论及器件技术研讨会

作者： Yuan-yuan CHEN Hao CHEN Xiao HE xiu-ming wang Institute of Acoustics Chinese Academy of Sciences

Tool deviation is frequently encountered in sonic logging,especially in an inclined *** the effects of the eccentric tool and mismatched dipole source need to be *** the present study we assumed that the dipole source is composed of two point sources with different amplitudes and is located at an off-axis *** computed the waveform responses of receiver arrays using the real axis integration（RAI）*** eccentric mismatched dipole source can produce non-dipole modes in addition to the pure dipole *** to the comparisons,the monopole mode is the strongest wavelet in the full wave signals while the source is mismatched and *** amplitude increases with increasing mismatch level as well as the tool deviation inside the *** both the in-line and cross-line responses vary as eccentricity orientation changes in the borehole.

关键词： Eccentric tool Real axis integration Dipole mode Monopole mode In-line receivers

ANALYSES ON DISPERSIONS AND EXCITATIONS OF SYMMETRIC GUIDED WAVES IN A FLUID-FILLED CYLINDRICAL SHELL

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ANALYSES ON DISPERSIONS AND EXCITATIONS OF SYMMETRIC GUIDED ...

2012全国压电和声波理论及器件技术研讨会

作者： Xi-qiang LI Hao CHEN Xiao HE xiu-ming wang State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of Sciences

To develop a new calibration standard of acoustic logging,we studied the wave propagation in a fluid-filled cylindrical shell with outside traction-free boundary *** obtained the phase- and group- velocity dispersions as well as the excitation spectrum *** results show that when the frequency of source becomes higher and reaches in the "plateau" range,the first-arrival wave is just the mode with "plateau" *** the source frequency is in a range between two "plateaus",the first-arrival wave is nearly the sum of two modes which have almost the same excitation intensities and group ***,the average phase velocity of the two modes is very close to the "plateau" *** a phenomenon can be used for the cahbration of sonic logging tools.

关键词： Calibration pit Guided wave Symmetric mode Dispersion Excitation spectrum

Therapeutic effects of Lingguizhugan decoction in a rat model of high-fat diet-induced insulin resistance

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World Journal of Diabetes 2024年第6期15卷 1291-1298页

作者： Xiao-ming Liu Shi-Qing Yuan Ying Ning Shi-Jia Nie Xu-Qiong wang Hong-Yi Jia xiu-Li Zheng Department of Basic Medicine School of Basic Medicine Chengdu University of Traditional Chinese MedicineChengdu 611137Sichuan ProvinceChina Department of Clinical Medicine Chengdu University of Traditional Chinese MedicineChengdu 610072Sichuan ProvinceChina

BACKGROUND Lingguizhugan(LGZG)decoction is a widely used classic Chinese medicine formula that was recently shown to improve high-fat diet(HFD)-induced insulin resistance(IR)in animal *** To assess the therapeutic effect of LGZG decoction on HFD-induced IR and explore the potential underlying *** To establish an IR rat model,a 12-wk HFD was administered,followed by a 4-wk treatment with *** determination of IR status was achieved through the use of biochemical tests and oral glucose tolerance *** a targeted metabolomics platform to analyze changes in serum metabolites,quantitative real-time PCR(qRT-PCR)was used to assess the gene expression of the ribosomal protein S6 kinase beta 1(S6K1).RESULTS In IR rats,LGZG decreased body weight and indices of hepatic *** effectively controlled blood glucose and food intake while protecting islet *** analysis revealed significant differences between the HFD and HFDLGZG *** intervention reduced branched-chain amino acid *** of IR-related metabolites such as tryptophan,alanine,taurine,and asparagine decreased *** may be linked to amino acids due to the contemporaneous increase in S6K1 expression,as shown by *** Our study strongly suggests that LGZG decoction reduces HFD-induced *** may activate S6K1 via metabolic *** findings lay the groundwork for the potential of LGZG as an IR treatment.

关键词： Lingguizhugan decoction High-fat diet-induced insulin resistance Amino acid metabolism S6K1

A Tri-Salt Composite Electrolyte with Temperature Switch Function for Intelligently Temperature-Controlled Lithium Batteries

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ENERGY & ENVIRONMENTAL MATERIALS 2024年第6期7卷 84-93页

作者： Fu, Ende wang, Huimin Zhang, Yating Xiao, Zhenxue Zheng, xiu Hao, Shuai Gao, Xueping Nankai Univ Inst New Energy Mat Chem Sch Mat Sci & Engn Tianjin 300350 Peoples R China

The intense research of lithium-ion batteries has been motivated by their successful applications in mobile devices and electronic vehicles. The emerging of intelligent control in kinds of devices brings new requirements for battery systems. The high-energy lithium batteries are expected to respond or react under different environmental conditions. In this work, a tri-salt composite electrolyte is designed with a temperature switch function for intelligently temperature-controlled lithium batteries. Specifically, the halide Li3YBr6 together with LiTFSI and LiNO3 works as active fillers in a low-melting-point polymer matrix (polyethyleneglycol dimethyl ether (PEGDME) and polyethylene oxide (PEO)), which is further filled into the pre-lithiated alumina fiber skeleton. Above 60 degrees C, the composite electrolyte exists in the liquid state and fully contacts with the working electrodes on the liquid-solid interface, effectively minimizing the interfacial resistance and leading to high discharge capacity in the cell. The electrolyte is changed into a solid state below 30 degrees C so that the ionic conductivity is significantly reduced and the interface resistance is increased dramatically on the solid-solid interface. Therefore, by simply adjusting the temperature, the cell can be turned "ON" or "OFF" intentionally. This novel function of the composite electrolyte has enlightening significance in developing intelligently temperature-controlled lithium batteries. A tri-salt composite electrolyte is developed by adding Li3YBr6, LiTFSI, and LiNO3 into PEGDME/PEO. It reversibly transforms between solid and liquid through adjusting the temperature, with lithium-ion conductivity and interfacial contact dramatically changed. Correspondingly, the cells are blocked or conductive as turning "off" and "on" reversibly and flexibly. This switch function shows great potential for developing intelligently temperature-controlled lithium batteries. image

关键词： composite electrolyte halide electrolyte low melting point solid-state battery temperature switch function SOLID POLYMER ELECTROLYTES IONIC-CONDUCTIVITY RECENT PROGRESS COMPATIBILITY INTERFACE NANOWIRES CATHODE SIO2

Multi-endpoint assays reveal more severe toxicity induced by chloraminated effluent organic matter than chloraminated natural organic matter

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Journal of Environmental Sciences 2024年第1期135卷 310-317页

作者： Hai-Yan wang De-xiu Wu Ye Du Xiao-Tong Lv Qian-Yuan Wu State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Environmental Protection Key Laboratory of Microorganism Application and Risk Control Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental SafetyTsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China College of Architecture and Environment Sichuan UniversityChengdu 610000China

Disinfection by chloramination produces toxic byproducts and the difference in toxicity of reclaimed and drinking water treated by chloramination remains *** study investigated cytotoxic effects at the same concentrations of dissolved organic matter and showed that chloraminated effluent organic matter(EfOM)induced 1.7 times higher cytotoxicity than chloraminated natural organic matter(NOM)applied to simulate drinking *** EfOM induced more reactive nitrogen species than chloraminated NOM,and chloraminated EfOM and NOM induced similar and higher levels of reactive oxygen species than the negative control,***,intracellular macromolecule damage indicated by DNA/RNA damage marker 8–hydroxy-(deoxy)guanosine and the intracellular protein carbonyl concentration induced by chloraminated EfOM was higher and slightly more than that induced by chloraminated NOM,*** data were consistent with the effects on cell physiological *** cycle arrest mainly occurred in G2 phase by chloraminated EfOM and *** apoptotic cells,which could return to normal,increased upon exposure to high concentrations of chloraminated EfOM and ***,necrotic cells were significantly increased from 0.5%to 2.5%when the concentration increased from 20-to 60-fold chloraminated EfOM,but were not obviously changed by chloraminated *** results indicated that the comprehensive intracellular changes induced by toxic substances in chloraminated EfOM were more irreversible and induced more cell death than chloraminated NOM.

关键词： Cytotoxicity Intracellular active nitrogen/oxygen Intracellular oxidative damage Cell necrosis Reclaimed water

Multiple Normalized Solutions for Nonlinear Biharmonic Schr?dinger Equations in ■with L-Subcritical Growth

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Acta Mathematicae Applicatae Sinica 2024年

作者： Jun wang Li wang Ji-xiu wang Department of Mathematics Sun Yat-sen University College of Science East China Jiaotong University School of Mathematics and Statistics Hubei University of Arts and Science

In this article, we consider the existence of normalized solutions for the following nonlinear biharmonic Schr?dinger equations:■where c, ε > 0, N ≥ 5, λ ∈ R is a Lagrange multiplier and is unknown, h ∈ C（■N, [0, ∞）), f : R → R is continuous function satisfying L2-subcritical growth. When ε is small enough, we get multiple normalized solutions. Moreover, we also obtain orbital stability of the solutions.

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NUMERICAL SIMULATION OF THE 3C SINGLE WELL IMAGING TECHNIQUE

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NUMERICAL SIMULATION OF THE 3C SINGLE WELL IMAGING TECHNIQUE

2015全国压电和声波理论及器件技术研讨会

作者： Hao GONG Hao CHEN Xiao HE Chang SU xiu-ming wang State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of Sciences

The three-dimensional Finite Difference Time Domain（FDTD）method was used to simulate the reflections of the three-component single well *** simulation results proved the efficiency of the SH wave imaging,and also pointed out the potential ***,unlike the transverse components which were commonly used,the axial component was proven to be prominent in the logging data,thus might ease the filtering process.

关键词： Single well imaging Numerical simulation Three-component data

SIMULATION OF 2.5-DIMENSIONAL BOREHOLE ACOUSTIC WAVES WITH CONVOLUTIONAL PERFECTLY MATCHED LAYER

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SIMULATION OF 2.5-DIMENSIONAL BOREHOLE ACOUSTIC WAVES WITH C...

2013全国压电和声波理论及器件技术研讨会

作者： Le LIU Wei-jun LIN Hai-lan ZHANG xiu-ming wang State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of Sciences

A 2.5-dimensional method using the PDE package of the commercial finite element software COMSOL Multiphysics is developed to simulate wave propagation in a *** computation is conducted in the frequency wave-number domain.A convolutional perfectly matched layer is implemented to eliminate the reflections from artificial truncation *** obtained in time domain are in good agreement with analytic solutions in a special model,which proves the validity of the method.A numerical modeling example is presented to illustrate the capabilities of the *** is shown that this method can be used to solve a variety of non-axisymmetric borehole acoustic wave propagation problems.

关键词： Borehole acoustics 2.5-dimensional Non-axisymmetric Finite element method Convolutional PML

A Weighted Flow related to a Trudinger–Moser Functional on Closed Riemann Surface

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Acta Mathematica Sinica,English Series 2024年第9期40卷 2244-2262页

作者： Peng xiu YU School of Mathematics Renmin University of ChinaBeijing 100872P.R.China

In this paper,with(Σ,g)being a closed Riemann surface,we analyze the possible concentration behavior of a heat flow related to the Trudinger–Moser *** obtain a long time existence for the *** along some sequence of times t_(k)→+∞,we can deduce the convergence of the flow in H2(Σ).Furthermore,the limit function is a critical point of the Trudinger–Moser functional under certain constraint.

关键词： Trudinger-Moser inequality global convergence heat flow