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Study of Soil-Water Characteristic Curve Using Microscopic Spherical Particle Model

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Pedosphere 2012年第1期22卷 103-111页

作者： YANG Song LU ting-hao Key Laboratory for Geomechanics and Embankment Engineering of Ministry of Education Hohai UniversityNanjing210098(China) Geotechnical Research Institute Hohai UniversityNanjing 210098(China)

When variations occur in the water content or dry bulk density of soil,the contact angle hysteresis will affect the soil-water characteristic curve(SWCC).The occurrence of the contact angle hysteresis can be divided into slipping and *** is difficult to determine the effect of pinning existence on SWCC by *** this study,the effect of contact angle hysteresis on SWCC was analyzed either in the case of no variations in soil dry bulk density with changes in soil water content or no variations in soil water content with changes in soil dry bulk *** both cases,soil particles were simplified to the spherical particle *** on the geometrically mechanic relationship between the particles and connecting liquid bridges,a physical model for predicting the SWCC was derived from the spherical particle *** parameters made the model applicable to various soils,that is,the cohesive soil was considered as micron-sized spherical *** the simulations on SWCC test data of sand,silt,clay,and swelling soil,it was confirmed that the physical model possessed good reliability and ***,the analysis of rationality of contact angle was performed based on the basic assumptions of the model.

关键词： connecting liquid bridge contact angle hysteresis dry bulk density physical model

Theoretical Exploration of the Isotopic Effect on Nuclear Dynamics in Coulomb Explosion

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Chinese Physics Letters 2013年第6期30卷 80-84页

作者： SHI hao-ting MIAO Xiang-Yang College of Physics and Information Engineering Shanxi Normal UniversityLinfen 041004

The isotopic effect on nuclear dynamics in Coulomb explosion for various initial vibrational states of H_(2)^(+) and HD+in intense laser(80 fs,800 nm,I=6.8×10^(13)W/cm^(2)) is theoretically investigated by numerically solving the time-dependent Schrodinger *** calculated results confirm that the effect we discussed by paying close attention to the comparative analysis of peak locations in the nuclear kinetic-energy-release spectra largely depends on the selection of the initial vibrational ***,it is the special isotope effect case about the vibrational state v=5 that has been studied in *** also discuss the time-dependent spectrum atυ=7,which can reveal the difference in nuclear wavepacket motion between H_(2)^(+) and HD+in the time region in which charge-resonance enhanced ionization takes place.

关键词： equation. vibrational intense

Ionization Channels of the Molecular Ion H^(+)_(2) in Intense Laser Field

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Chinese Physics Letters 2013年第11期30卷 71-75页

作者： MIAO Xiang-Yang SHI hao-ting College of Physics and Information Engineering Shanxi Normal UniversityLinfen 041004

Ionization channels of the molecular ion H^(+)_(2) for various initial vibrational states in intense laser field(80 fs,800 nm,I=6.8×10^(13) W/cm^(2))are theoretically investigated by numerically solving the time-dependent Schrödinger *** results confirm that the channels largely depend on the selection of initial vibrational states by analyzing the variations of peak locations in the nuclear initial kinetic-energy-release ***,the selection of the ionization channels is sensitive to the wavelength of the laser *** addition,time-dependent competition between direct multi-photon ionization and charge-resonance-enhanced ionization are is discussed.

关键词： spectra ionization Ionization

STRUCTURE AND PROPERTIES OF PHOSPHROUS-CONTAINING POLY(ARYLETHER KETONE)WITH BISPHENOL-A MOIETY

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Chinese Journal of Polymer Science 2007年第6期25卷 651-655页

作者： Kai-jun Li Xiao-ting Chen hao Sun Xu-dong Tang College of Material Science ＆ Chemical Engineering Tianjin University of Science ＆ Techology Tianjin 300457 China

A phosphrous-containing poly（aryl ether ketone） was synthesized derived from bisphenol-A and bis[4-（4- fluorobenzoyl）phenyl] phenyl phosphine oxide （FPPPO） by nucleophilic substitution reaction. The structure of the polymer was characterized by FT-IR, ^1H-NMR and ^31p-NMR. The thermal property of the PAEK was measured by DSC and TGA. The glass transition temperature （Tg） of the polymer was 205℃, and the 5% weight loss temperature under nitrogen was 475℃. Good solubility of the polymer in organic solvents, such as N-methylpyrrolidone, dimethylformamide, dimethylacetamide, dimethylsulfoxide and chloroalkanes was observed, flexible film was obtained from the polymer＇s CH2Cl2 solution. The limiting oxygen index （LOI） of the PAEK was 40, which indicated that organic phosphorus moiety can offer good flame retardant property to the polymer.

关键词： Poly(aryl ether ketone) Bis[4-(4-fluorobenzoyl)phenyl] phenyl phosphine oxide (FPPPO) Nucleophilic substitution reaction Bisphenol-A.

Preparation of quasi-isotropic thermal conductive composites by interconnecting spherical alumina and 2D boron nitride flakes

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Rare Metals 2023年第4期42卷 1283-1293页

作者： hao-ting Niu Yi Zhang Guang Xiao Xu-Hua He Ya-Gang Yao National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210093China

Achieving thermal management composite material with isotropic thermal dissipation property by using an environmentally friendly and efficient method is one of the most challenging techniques as a traditional approach tending to form a horizontally arranged network within the polymer matrix or the preparation steps which are unduly *** presented here is a closestack thermally conductive three-dimensional(3D)hybrid network structure prepared by a simple and green strategy that intercalating the modified aluminum oxide(m-Al_(2)O_(3))spheres of different sizes into the modified two-dimensional(2D)boron nitride(m-h-BN)*** effective 3D network is created by the multi-dimensional fillers through volume exclusion and synergistic *** m-h-BN flakes facilitate in-plane heat transfer,while the variously sized m-Al_(2)O_(3)spheres insert into the gaps between adjacent m-h-BN flakes,which is conducive to the heat transfer in the out-of-plane ***,strong interactions between the m-Al_(2)O_(3)and m-h-BN promote the effective heat flux inside the 3D hybrid network *** 3D hybrid composite displays favorable quasi-isotropic heat dissipation property(through-plane thermal conductivity of 2.2 W·m^(-1)·K^(-1)and in-plane thermal conductivity of 11.6 W·m^(-1)·K^(-1))in comparison with the single-filler ***,the hybrid-filler composite has excellent mechanical properties and thermal *** efficient heat dissipation capacity of the hybrid composite is further confirmed by a finite element simulation,which indicates that the sphere-flake hybrid structure possesses a higher thermal conductivity and faster thermal response performance than the single-filler *** composite material has great potential in meeting the needs of emerging and advancing power systems.

关键词： Boron nitride flake Aluminum oxide Thermal management Volume exclusion effect Three-dimensional(3D)hybrid network

STUDIES ON THE STEREO-AND ENANTIOSELECTIVE SYNTHESIS OF 11.12-EPOXYSARCOPHYTOL-A,11,12-EPOXYSARCOPHYTOL-A ACETATE AND 11,12-EPOXYCEMBRENE-C.-SYNTHESIS OF 5,9,13-TRIMETHYL-2-ISOPROPYL-12(S),12(S)-EPOXY-14

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Chinese Chemical Letters 1995年第3期6卷 189-192页

作者： Xiang Jun YUE ting hao Li Yu Lin Li State Key Laboratory of Applied Organic Chemistry and Institute of Organic Chemistry Lanzhou UniversityLanzhou 730000 Teaching and Research Section of Chemistry Nanjing Forestry UniverstyNanjing 210037

An efficient Synthesis of 5, 9, 13-trimethy1-2-isopropyl-12(S),13 (S)-epoxy-14-bromo-2 (Z), 4 (E). 8 (E)-tetradecatrienenitrile,a key intermediate in the synthesis of antitumor cembranoids including 11,12-epoxy-sarcophytol-A,11,12-epoxysarcophytol-A acetate and 11,12-epoxycembrene-C,was first describedthrough seven step sequence in-32% overall yield from E,E-farnesol.

关键词： 2?

The thermal stability of dispersion-strengthened tungsten as plasma-facing materials:a short review

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Tungsten 2019年第3期1卷 187-197页

作者： Tao Zhang Zhuoming Xie Junfeng Yang ting hao Changsong Liu School of Physics and Electronic Engineering GuangZhou UniversityGuangzhou 510006China Institute of Solid State Physics Chinese Academy of SciencesHefei 230031China

One key challenge for the development of fusion energy is plasma-facing ***-based materials are promising candidates for plasma-facing components(PFCs)in the magnetic confinement nuclear fusion reactors because of their high melt temperature,high-thermal conductivity,high-thermal load resistance,low tritium retention,and low sputtering *** fusion reactors,PFCs are exposed to high-thermal flux,because there are some transient events such as plasma disruptions,edge-localized modes,and vertical displacement events(VDEs).Especially,in VDEs,a heat flux of 10-100 MW m−2 with duration of milliseconds-to-several seconds can induce recrystallization and then change the microstructure of tungsten-based plasma-facing materials,leading to instability of ***,a significant degradation of material properties is caused such as a reduction of mechanical strength and fracture toughness,a rise in the ductile-to-brittle-transition tempera-ture well,and decrease of irradiation/high-thermal load ***,many efforts were devoted to improve the thermal stability of tungsten-based materials as high as possible,such as oxide dispersion strengthening,carbide dispersion strengthening,and K bubbles dispersion ***,the thermal stabilities of various dispersion-strengthened tungsten materials are reviewed by evaluating their recrystallization temperature and the corresponding hardness *** addition,the possible development trends are proposed.

关键词： Tungsten Plasma-facing materials Thermal stability Dispersion strengthening

Extracellular CIRP dysregulates macrophage bacterial phagocytosis in sepsis

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Cellular & Molecular Immunology 2023年第1期20卷 80-93页

作者： Mian Zhou Monowar Aziz hao-ting Yen Gaifeng Ma Atsushi Murao Ping Wang Center for Immunology and Inflammation The Feinstein Institutes for Medical ResearchManhassetNYUSA Departments of Surgery and Molecular Medicine Zucker School of Medicine at Hofstra/NorthwellManhassetNYUSA

In sepsis, macrophage bacterial phagocytosis is impaired, but the mechanism is not well elucidated. Extracellular cold-inducible RNA-binding protein (eCIRP) is a damage-associated molecular pattern that causes inflammation. However, whether eCIRP regulates macrophage bacterial phagocytosis is unknown. Here, we reported that the bacterial loads in the blood and peritoneal fluid were decreased in CIRP^(−/−) mice and anti-eCIRP Ab-treated mice after sepsis. Increased eCIRP levels were correlated with decreased bacterial clearance in septic mice. CIRP−/− mice showed a marked increase in survival after sepsis. Recombinant murine CIRP (rmCIRP) significantly decreased the phagocytosis of bacteria by macrophages in vivo and in vitro. rmCIRP decreased the protein expression of actin-binding proteins, ARP2, and p-cofilin in macrophages. rmCIRP significantly downregulated the protein expression of βPIX, a Rac1 activator. We further demonstrated that STAT3 and βPIX formed a complex following rmCIRP treatment, preventing βPIX from activating Rac1. We also found that eCIRP-induced STAT3 phosphorylation was required for eCIRP’s action in actin remodeling. Inhibition of STAT3 phosphorylation prevented the formation of the STAT3-βPIX complex, restoring ARP2 and p-cofilin expression and membrane protrusion in rmCIRP-treated macrophages. The STAT3 inhibitor stattic rescued the macrophage phagocytic dysfunction induced by rmCIRP. Thus, we identified a novel mechanism of macrophage phagocytic dysfunction caused by eCIRP, which provides a new therapeutic target to ameliorate sepsis.

关键词： βPIX eCIRP Macrophage Phagocytosis Rac1 STAT3

Comparison of surgical intervention with functional treatment for acute ruptures of lateral ankle ligmant:a meta-analysis

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Asian Pacific Journal of Tropical Medicine 2012年第5期5卷 396-401页

作者： Zeng-Tao hao Yu-Xia Ma ting hao Wei Feng Ji-Hong Wang Dong-Sheng Fan Shu-Zheng Wen The Second Affiliated Hospital Inner Mongolia Medical College Women and Children Hospita of Inner Mongolia

Objective:To compare the effect of surgical intervention on functional ***: By searching the MEDLINE(1966 to October 2011),EMBASE(1980 to October 2011),the Chinese Biomedical Database Databases(1980 to October 2011),a total of 9 related RCT studies comparing surgical intervention with functional treatment were included in our *** software was taken to analyze the ***:These 9 studies Involved a total of 1 268 mostly young adults,including 580 patients with surgical treatment and 688 patients with functional *** results showed the stability of ankle activity in surgical treatment group was better than that in functional treatment group,with the OR and 95%CI of 0.72(0.52-0.99).No significant difference was found in the recurrence of the surgical and functional ***, the movement disorder in the surgical treatment suggested increased risk than that in functional group,with the OR and 95%CI of 2 39(0.98-5.85).Surgical group found more complication than the function group,such as deep vein thrombosis,deep venous thrombosis,tenderness of scar and sensory ***:In conclusion,our finding showed that surgical treatment could gain better efficacy than functional treatment,but may bring more ***,further large sample size RCT is warranted.

关键词： Acute ruptures Lateral ankle ligmant Surgical treatment Functional treatment