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Cornwall-Jackiw-Tomboulis Effective Potential for Quark Propagator in Real-Time Thermal Field Theory and Landau Gauge

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Communications in Theoretical Physics 2005年第5X期44卷 879-882页

作者： ZHOU bang-Rong College of Physical Science Graduate School of the Chinese Academy of Sciences Beijing 100049 ChinaCCAST (World Laboratory) P.O. Box 8730 Beijing 100080 China

We complete the derivation of the Cornwall-Jackiw-Tomboulis effective potentiM for quark propagator at finite temperature and finite quark chemical potential in the real-time formalism of thermal field theory and in Landau gauge. In the approximation that the function A（p^2） in inverse quark propagator is replaced by unity, by means of the running gauge coupling and the quark mass function invariant under the renormalization group in zero temperature Quantum Chromadynamics （QCD）, we obtain a calculable expression for the thermal effective potential, which will be a useful means to research chiral phase transition in QCD in the real-time formalism.

关键词： CJT effective potential real-time thermal field theory QCD quark propagator Landau gauge

Oxide Layers on(0001) Plane of Zircaloy-4 After Corrosion at 360 °C in Lithiated Aqueous Solution

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Acta Metallurgica Sinica(English Letters) 2015年第6期28卷 748-757页

作者： Shao-Qiu Gou bang-Xin Zhou Mei-Yi Yao Jian-Chao Peng Chuan-Ming Chen Qiang Li jin-Long Zhang Institute of Materials Shanghai University Laboratory for Microstructures Shanghai University

The microstructures of the oxide layers formed on near （0001） plane of Zircaloy-4 were investigated by autoclave tests at 360 ℃ in lithiated aqueous solution. Oxygen-rich regions with hcp structure were observed at the undulating O/M interface, and the inner surface morphology of the oxide layers formed on （0001） was only concave- convex. Monoclinic, tetragonal and cubic phases and a kind of zirconium sub-oxide with bcc structure were detected in the oxide layer near the metal matrix. This zirconium sub-oxide layer had a coherent relationship with a-Zr matrix, and the growth direction of the zirconium sub-oxide layer was nearly parallel to the [0001] direction of a-Zr regardless of the orientation of metal matrix. The orientations scattering of columnar grains formed on near （0001） plane differ from that formed on near （1010） plane.

关键词： Zircaloy-4 (0001) plane Oxide/metal interfaces Microstructure Oxygen-rich regions Zirconium sub-oxide

Reyanning Mixture on Asymptomatic or Mild SARS-CoV-2 Infection in Children and Adolescents:A Randomized Controlled Trial

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Chinese Journal of Integrative Medicine 2023年第10期29卷 867-874页

作者： XU Xiang-ru ZHOU Shuang jin Guo-qiang WU Hong-ze LI jin-hua ZHOU jing PENG Wei ZHANG Wen SUN Ding FANG bang-jiang Department of Emergency Longhua Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai200032China Acupuncture and Massage College Shanghai University of Traditional Chinese MedicineShanghai201203China Department of Health Management The First Affiliated Hospital of Nanchang UniversityNanchang330006China Jiangxi Provincial Traditional Chinese Medicine Nephropathy Clinical Research Center Jiujiang Hospital of Traditional Chinese MedicineJiujiangJiangxi Province332099China Department of Respiratory and Critical Care Medicine The First Affiliated Hospital of Nanchang UniversityNanchang330006China Institute of Critical Care Shanghai University of Traditional Chinese MedicineShanghai200032China

Objective: To assess the effect and safety of Reyanning Mixture(RYN) in treating asymptomatic or mild severe acute respiratory syndrome coronavirus 2(SARS-Co V-2) infection in children and adolescents. Methods: This is a prospective, open-label, randomized control ed trial. Patients aged 1–17 years and diagnosed with asymptomatic or mild coronavirus disease-2019(COVID-19) were assigned to an intervention group(RYN plus standard care) and a control group(standard care) according to a randomization list. The primary outcomes were SARS-Co V-2 negative conversion time. Secondary outcomes included negative conversion rate on days 3 and 7, hospital length of stay, symptom relief rate, new-onset symptoms of asymptomatic infected patients, and progressive disease rate. The cycle threshold(Ct) values of ORF1ab or N genes were also tested. Results: A total of 214 patients in the intervention group and 217 in the control group were analyzed. The SARS-CoV-2 negative conversion time was significantly shortened in the intervention group [5 days(interquartile range(IQR): 5–6) vs. 7 days(IQR: 6–7), P0.05). Symptoms of cough were significantly improved(82.2% vs. 70.0%, P=0.02) and wheezing was significantly reduced(0.7% vs. 12.9%, P<0.01) in the intervention group compared with the control group. During the trial, no disease progression or serious adverse events were reported. Conclusion: Add

关键词： coronavirus diseases-2019 severe acute respiratory syndrome coronavirus 2 Omicron children Reyanning Mixture randomized controlled trial Chinese medicine

Laponite:a promising nanomaterial to formulate high-performance water-based drilling fluids

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Petroleum Science 2021年第2期18卷 579-590页

作者： Xian-Bin Huang jin-Sheng Sun Yi Huang bang-Chuan Yan Xiao-Dong Dong Fan Liu Ren Wang Key Laboratory of Unconventional Oil and Gas Development China University of Petroleum(East ChinaMinistry of Education)Qingdao266580ShandongPeople’s Republic of China School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongPeople’s Republic of China Zhanjiang Branch of China National Offshore Oil Corporation Limited Zhanjiang524057GuangdongChina CNPC Engineering Technology R&D Company Limited Beijing102206People’s Republic of China

High-performance water-based drilling fluids(HPWBFs)are essential to wellbore stability in shale gas exploration and *** is a synthetic hectorite clay composed of disk-shaped *** paper analyzed the application potential of laponite in HPWBFs by evaluating its shale inhibition,plugging and lubrication *** inhibition performance was studied by linear swelling test and shale recovery *** performance was analyzed by nitrogen adsorption experiment and scanning electron microscope(SEM)*** pressure lubricity test was used to evaluate the lubrication *** results show that laponite has good shale inhibition property,which is better than commonly used shale inhibitors,such as polyamine and *** can effectively plug shale *** considerably decreases the surface area and pore volume of shale,and SEM results show that it can reduce the porosity of shale and form a seamless *** is beneficial to increase lubricating property of drilling fluid by enhancing the drill pipes/wellbore interface smoothness and isolating the direct contact between wellbore and drill ***,laponite can reduce the fluid loss *** to mechanism analysis,the good performance of laponite nanoparticles is mainly attributed to the disk-like nanostructure and the charged surfaces.

关键词： Laponite Nanoparticles High performance Drilling fluid Shale gas

Studies on diversity of higher fungi in Yunnan, southwestern China:A review

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Plant Diversity 2018年第4期40卷 165-171页

作者： bang Feng Zhuliang Yang Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of Botany Chinese Academy of Sciences

Yunnan is exceedingly rich in higher fungi(Ascomycota and Basidiomycota). Given that the number of fungi(including lichens) occurring in a given area is, as Hawksworth suggested, roughly six times that of local vascular plants, a total of approximately 104,000 fungal species would be expected in ***, to date only about 6000 fungal species, including roughly 3000 species of higher fungi, have been reported from the province. Although studies on Yunnan's fungi started in the late nineteenth century, significant progress has been made only in the last forty-five years. Over the first twenty-five years of this period, studies on fungal diversity in this area have largely been about taxonomy based on morphological characters and partially on geographical distribution. Over the past twenty years, the combination of both morphological and molecular phylogenetic approaches has become the preferred method to help understand the diversity and evolution of higher fungi. This review focuses on our current knowledge of how geological, geographical, and ecological factors may have contributed to the diversity patterns of higher fungi in Yunnan. Based on this knowledge, three aspects for future studies are suggested.

关键词： Ascomycota Basidiomycota Biogeography Evolution Fungal diversity Yunnan

Effective operation and performance improvement methods for OMTP BONDI-based mobile Web widget resources

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Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第10期12卷 787-799页

作者： Jiwoong bang Daewon KIM Department of Computer Science Dankook University Department of Multimedia Engineering Dankook University

The Open Mobile Terminal Platform (OMTP) is a global forum made by telecommunications providers to promote user-oriented mobile services and data businesses. Devised by OMTP, BONDI is a browser-based application or a mobile Web run-time platform to help widgets make good use of the functions of mobile devices in a secure way. BONDI enables applications programmed with Web standard technologies such as HTML, JavaScript, CSS, and AJAX to reach the internal functions of mobile devices. Since BONDI, which is not just a simple network application, can reach the internal resources of devices in standard ways, it enables the application and widgets to be developed regardless of the operating system (OS) or platform. Web browser-based widgets are vulnerable to the network environment, and their execution speed can be slowed as the operations of the widgets or applications become heavy. Compared with the native widgets inside the device, however, those Web widgets will be continuously used thanks to the user-friendly simple interface and the faster speed in using Web resources. This study deals with a method to effectively operate and manage the resources of OMTP BONDI Web widget and provides improved results based on running performance evaluation experiments. The experiments were carried out to improve the entire operating time by enhancing the module-loading speed. In this regard, only indispensable modules were allowed to be loaded while the BONDI widget was underway. For this purpose, the widget resource list, which can make the operating speed of the BONDI widget faster, was redefined while a widget cache was employed. In addition, the widget box, a management tool for removed widgets, was devised to store temporarily idle widgets.

关键词： Mobile OMTP BONDI Web Widget Resources

Comfort-driven disparity adjustment for stereoscopic video

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Computational Visual Media 2016年第1期2卷 3-17页

作者： Miao Wang Xi-jin Zhang Jun-bang Liang Song-Hai Zhang Ralph R.Martin Department of Computer Science and Technology Tsinghua University Cardiff University

Pixel disparity—the offset of corresponding pixels between left and right views—is a crucial parameter in stereoscopic three-dimensional(S3D)video, as it determines the depth perceived by the human visual system(HVS). Unsuitable pixel disparity distribution throughout an S3 D video may lead to visual discomfort. We present a unified and extensible stereoscopic video disparity adjustment framework which improves the viewing experience for an S3 D video by keeping the perceived 3D appearance as unchanged as possible while minimizing discomfort. We first analyse disparity and motion attributes of S3 D video in general, then derive a wide-ranging visual discomfort metric from existing perceptual comfort models. An objective function based on this metric is used as the basis of a hierarchical optimisation method to find a disparity mapping function for each input video frame. Warping-based disparity manipulation is then applied to the input video to generate the output video, using the desired disparity mappings as constraints. Our comfort metric takes into account disparity range, motion, and stereoscopic window violation; the framework could easily be extended to use further visual comfort models. We demonstrate the power of our approach using both animated cartoons and real S3 D videos.

关键词： stereoscopic video editing video enhancement perceptual visual computing video manipulation

Orbital period correction and light curve modeling of the W-subtype shallow contact binary OW Leo

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Research in Astronomy and Astrophysics 2021年第2期21卷 24-30页

作者： Xiao Zhou Sheng-bang Qian Yunnan Observatories Chinese Academy of Sciences(CAS)Kunming 650216China Key Laboratory of the Structure and Evolution of Celestial Objects Chinese Academy of SciencesKunming 650216China Center for Astronomical Mega-Science Chinese Academy of SciencesBeijing 100101China University of the Chinese Academy of Sciences Beijing 100049China

Orbital period and multi-color light curves’investigation of OW Leo are presented for the first *** orbital period of OW Leo is corrected from P=0.325545 days to P=0.32554052 days in our work,and the observational data from the All-Sky Automated Survey for Super Novae(ASAS-SN)are used to test the newly determined orbital ***,the phased light curves are calculated with the new period and the Wilson-Devinney program is applied to model the light curves,which reveal that OW Leo is a W-subtype shallow contact binary system(q=3.05,f=12.8%).The absolute physical parameters of the two component stars are estimated to be M_(1)=0.31(1)M_(⊙),M_(2)=0.95(3)M_(⊙),R_(1)=0.63(1)R⊙,R_(2)=1.04(1)R_(⊙),L_(1)=0.43(1)L_(⊙)and L_(2)=1.01(2)L_(⊙).The evolutionary status shows that the more massive star is less evolved than the less massive *** Leo has very low metal abundance,which means its formation and evolution are hardly influenced by any additional *** is formed from an initially detached binary system through nuclear evolution and angular momentum loss via magnetic braking,and has passed a very long time of main sequence evolution.

关键词： techniques photometric-binaries eclipsing-stars evolution

Anti-corrosion performance of Si-surface-alloying NdFeB magnets obtained with magnetron sputtering and thermal diffusion

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Journal of Rare Earths 2023年第8期41卷 1203-1210,I0003页

作者： jin Tao bang Liu Pengjie Zhang Guangqing Xu Jun Lv Jun Huang Jian Yan Wei Sun Bingshan Li Dongmei Wang Yucheng Wu School of Materials Science and Engineering Hefei University of TechnologyHefei 230009China BGRIMM Technology Group Co. Ltd.Beijing 102600China National Engineering Research Center for Magnetic Materials Beijing 102600China Key Laboratory of Advanced Functional Materials and Devices of Anhui Province Anhui Provincial International S&T Cooperation Base for Advanced Energy MaterialsHefei University of TechnologyHefei 230009China

Si alloying in the surface layer of NdFeB magnets was realized by thermal diffusion combined with magnetron *** surface composition,phase structure and morphology of NdFeB(S-Si)specimens were characterized by an X-ray diffractometer,an X-ray photoelectron spectrometer and a field emission scanning electron microscope,*** corrosion resistance of bare NdFeB(S-Si)was analyzed by static full immersion corrosion test and electrochemical *** of sputtering and thermal diffusion on the microstructure and corrosion resistance of the surface layer were *** show that surface alloying layer can effectively improve the corrosion resistance of bare NdFeB with the optimized static total immersion corrosion test time in NdFeB(1S-Si)-800 of 36 h,which is much longer than that of the pristine NdFeB(less than 0.5 h).The E_(corr)of NdFeB(1S-Si)-800 positively shifts from-1.05 to-0.92 V,indicating that the corrosion tendency is obviously *** J_(corr)is1.45×10^(-6)A/cm^(2)which is 2 orders of magnitude lower than that of the pristine NdFeB(5.25×10^(-4)A/cm^(2)).The intergranular composite oxides existing in Nd-rich phase contribute to the enhancement of corrosion resistance of Si-surface-alloying NdFeB.

关键词： NdFeB magnets Si surface alloying Magnetron sputtering Thermal diffusion Corrosion resistance Rare earths