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Roles of the ocular pressure, pressure-sensitive ion channel, and elasticity in pressure-induced retinal diseases

Neural Regeneration Research 2021年第1期16卷 68-72页

作者： ji-jie Pang Department of Ophthalmology Baylor College of MedicineHoustonTXUSA

The intraocular pressure inside the human eye maintains 10–21 mmHg above the atmospheric *** of intraocular pressure is highly correlated with the retinopathy in glaucoma,and changes in the exterior pressure during mountain hiking,air traveling,and diving may also induce vision decline and *** pathophysiological mechanism of these pressure-induced retinal disorders has not been completely *** neurons express pressure-sensitive channels intrinsically sensitive to pressure and membrane stretch,such as the transient receptor potential channel(TRP)family permeable to Ca^2+and Na^+and the two-pore domain K channel *** data have shown that pressure excites the primate retinal bipolar cell by opening TRP vanilloid 4 to mediate transient depolarizing currents,and TRP vanilloid 4 agonists enhance the membrane excitability of primate retinal ganglion *** eyeball wall is constructed primarily by the sclera and cornea of low elasticity,and the flow rate of the aqueous humor and intraocular pressure both fluctuate,but the mathematical relationship between the ocular elasticity,aqueous humor volume,and intraocular pressure has not been *** review will briefly review recent literature on the pressure-related retinal pathophysiology in glaucoma and other pressure-induced retinal disorders,the elasticity of ocular tissues,and pressure-sensitive cation channels in retinal *** data support the global volume and the elasticity and thickness of the sclera and cornea as variables to affect the intraocular pressure level like the volume of the aqueous *** results also suggest some potential routes for TRPs to mediate retinal ganglion cell dysfunction:TRP opening upon intraocular pressure elevation and membrane stretch,enhancing glutamate release from bipolar cells,increasing intracellular Na^+,Ca^2+concentration in retinal ganglion cells and extracellular glutamate concentration,inactivating voltage-ga

关键词： glaucoma ocular elasticity patch-clamp pressure-sensitive ion channel retina retinal bipolar cell retinal ganglion cell TRP

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Application of Exp-Function Method to Discrete Nonlinear Schrdinger Lattice Equation with Symbolic Computation

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Communications in Theoretical Physics 2008年第12期50卷 1279-1282页

作者： ji jie College of Statistics and Mathematics Zhejiang Gongshang University Hangzhou 310018 China

In this paper, we present an extended Exp-function method to differential-difference equation（s）. With the help of symbolic computation, we solve discrete nonlinear Schrodinger lattice as an example, and obtain a se... 详细信息

关键词： Exp-function solutions discrete nonlinear SchrSdinger lattice equation

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A method of determining flame radiation fraction induced by interaction burning of tri-symmetric propane fires in open space based on weighted multi-point source model

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Frontiers in Energy 2022年第6期16卷 1017-1026页

作者： jie ji Junrui DUAN Huaxian WAN State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026China Institute of Advanced Technology University of Science and Technology of ChinaHefei 230088China

The interaction of multiple fires may lead to a higher flame height and more intense radiation flux than a single fire,which increases the possibility of flame spread and risks to the *** were conducted using three burners with identical heat release rates(HRRs)and propane as the fuel at various *** results show that flames change from non-merging to merging as the spacing decreases,which result in a complex evolution of flame height and merging point *** facilitate the analysis,a novel merging criterion based on the dimensionless spacing S/z_(c) was *** non-merging flames(S/z_(c)>0.368),the flame height is almost identical to a single fire;for merging flames(S/z_(c)≤0.368),based on the relationship between thermal buoyancy B and thrust P(the pressure difference between the inside and outside of the flame),a quantitative analysis of the flame height,merging point height,and air entrainment was formed,and the calculated merging flame heights show a good agreement with the measured experimental ***,the multi-point source model was further improved,and radiation fraction of propane was *** data obtained in this study would play an important role in calculating the external radiation of propane fire.

关键词： flame interaction air entrainment flame height multi-point source model thermal radiation

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Asymmetric flow effect in a horizontal natural ventilated tunnel with different aspect ratios under the influence of longitudinal fire locations

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Building Simulation 2021年第4期14卷 1311-1323页

作者： Longxing Yu Huaxian Wan jie ji State Key Laboratory of Fire Science University of Science and Technology of ChinaJinZhai Road 96HefeiAnhui230026China College of Environment and Resources Fuzhou UniversityXueyuan Road 2FuzhouFujian350116China

This paper has analyzed the asymmetric flow effect of fire-induced thermal flow in a horizontal tunnel under the natural ventilation condition by conducting large eddy simulations (LES). The key objective is to reveal and to have a better understanding of the asymmetric flow effect caused by the upstream and downstream tunnel length difference. The mechanism behind it can be explained based on the conservation of mass and dynamic force analysis on the smoke and fresh air. The strength of the asymmetric flow effect is characterized by the mass flow rate of the induced longitudinal flow (net mass flow rate of a cross-section). An empirical correlation to predict the induced longitudinal mass flow rate is proposed. Furthermore, the law of smoke and air flow distribution within a horizontal tunnel is established. The proportion of smoke (or air) flowing out (or coming in) through the opening increase (or decrease) linearly with the increasing distance between that opening to the fire location. The variation of the air flow with the longitudinal fire location in a tunnel is more sensitive than the smoke flow. Results have shown that as the fire approaches the tunnel exit from the middle of the tunnel, the smoke spilling out through this opening is reduced from 50% to 40%, while the fresh air incoming from this opening is increased from 50% to 100% and vice versa.

关键词： asymmetric flow effect fire location thermal flow smoke tunnel fire CFD

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Algebraic Method for Constructing Exact Discrete Soliton Solutions of Toda and mKdV Lattices

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Communications in Theoretical Physics 2008年第6期49卷 1407-1409页

作者： WANG Jun-Min ji jie School of Information Henan University of Finance and Economics Zhengzhou 450002 China College of Statistics and Mathematics Zhejiang Gongshang University Hangzhou 310018 China

In this paper, with the aid of symbolic computation, we present a new method for constructing soliton solutions to nonlinear differentiM-difference equations. And we successfully solve Toda and mKdV lattice.

关键词： soliton solutions differential-difference equation

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A New 4×4 AKNS Spectral Problem and Its Associated Integrable Decomposition of the AKNS Equation

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Chinese Annals of Mathematics,Series B 2008年第2期29卷 147-154页

作者： jie ji Haihua LU Yuqing LIU College of Statistics ＆ Computing Science Zhejiang Gongshang University Hangzhou 310018 China Personnel Office Nantong University Nantong 226019 Jiangsu China Department of Mathematics Shanghai University Shanghai 200444 China Department of Information Science Jiangsu Polytechnic University Changzhou 213016 Jiangsu China

A new approach to construct a new 4×4 matrix spectral problem from a normal 2×2 matrix spectral problem is *** spectral problem is discussed as an *** isospectral evolution equation of the new 4×4 matrix spectral problem is nothing but the famous AKNS equation *** the aid of the binary nonlino earization method,the authors get new integrable decompositions of the AKNS equation. In this process,the r-matrix is used to get the result.

关键词： Spectral problem Integrable decomposition r-matrix

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Experimental and Comparison Study on Two Solar Dish Systems with a High Concentration Ratio

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Journal of Thermal Science 2019年第6期28卷 1205-1211页

作者： CHEN Haifei LI Guiqiang YANG jie ZHANG Fuwei LIANG Ming ji jie School of Petroleum Engineering Changzhou UniversityChangzhou 213164China School of Engineering University of HullHull HU67RXUK Department of Thermal Science and Energy Engineering University of Science and Technology of ChinaHefei 230026China

Two high concentrating solar systems have been established with dish concentrator and plane-mirrors array *** the paper,the thermal performance has been experimentally studied with jet water cooling device and flat microchannel water-cooled *** experimental results show that the maximum surface temperature difference of the dish concentrating system is greater than 20°C,while the plane-mirrors array system is lower than 4°*** indicates that the plane-mirrors array concentrator has better *** the concentration ratio increases,the electrical efficiency of the concentrating photovoltaic system gradually *** the concentration ratio is 200,the electrical efficiency of the photovoltaic system is 25%.The concentration ratio of 500 times or less is considered to be a suitable value,and then the electrical efficiency can still exceed 20%.It is found that the plane-mirrors array solar system is more suitable for the photovoltaic system than dish type system,which is only suitable for thermal power generation system.

关键词： high concentration ratio thermal science dish system solar energy

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Characteristics of flame spread over the surface of charring solid combustibles at high altitude

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Chinese Science Bulletin 2009年第11期54卷 1957-1962页

作者： LI jie ji jie ZHANG Ying SUN jinHua State Key Laboratory of Fire Science University of Science and Technology of China Hefei 230026 China

To explore the characteristics of flame spread over the surface of charring solid combustibles at high altitude, the whitewood with uniform texture was chosen to conduct a series of experiments in Lhasa and Hefei, with altitude of 3658 m and 50 m respectively. Several parameters, including the flame height, flame spread rate, flame temperature, surface temperature, were measured on samples with different width and inclinations. A quantitative analysis of flame spread characteristics over sample surface at high altitude was performed. Results showed that, in the environment of lower pressure and oxygen concentration at high altitude, the flame height and flame spread rate over sample surface decreased, but the flame temperature increased slightly. However, with increasing of sample width, the relative difference between the flame spread rates at different altitudes decreased.

关键词：火焰高度传播特性固体燃料表面炭化火焰传播速度高海拔地区高空

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Performance evaluation of a micro turbo-expander for application in low-temperature solar electricity generation

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第3期12卷 207-213页

作者： Gang PEI Yun-zhu LI jing LI jie ji Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China

A micro turbo-expander capable of high working speed was specially manufactured for use in an organic Rankine cycle (ORC).A series of tests were executed to examine the performance of the *** the experiment,the machine was tested under different inlet pressure conditions (0.2-0.5 MPa).Data such as the compressed air pressure,temperatures of the inlet and the outlet,rotational speed,and electric power generation were analyzed to discover underlying *** the test,the rotational speed of the machine reached as high as 54 000 r/min,the peak value of the temperature drop between the inlet and the outlet reached 42 ℃,the maximum electric power generated by the motor-generator attached to the machine reached 630 W,and the efficiency of the machine reached 0.43.

关键词： Turbo-expander Solar Low-temperature Performance evaluation

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Statistical measures of genetic differentiation of populations： Rationales, history and current states

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Current Zoology 2015年第5期61卷 886-897页

作者： Liang MA Ya-jie ji De-Xing ZHANG Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Institute of Applied Mathematics Chinese Academy of Sciences Beijing 100190 China Beijing Institute of Genomics Chinese Academy of Sciences Beijing 100101 China National Center for Mathematics and Interdisciplinary Sciences Chinese Academy of Sciences Beijing 100190 China

Population differentiation is a fundamental process of evolution, and many evolutionary studies, such as population genetics, phylogeography and conservation biology, all require the inference of population differentiation. Recently, there has been a lot of debate over the validity of FST （and its analogue Gsr） as a measure for population genetic differentiation, notably since the proposal of the new index D in 2008. Although several papers reviewed or explored specific features of these statistical measures, a succinct account of this bewildering issue with an overall update appears to be desirable. This is the purpose of the present review. The available statistics generally fall into two categories, represented by Fsv and D, respectively. None of them is perfect in measuring population genetic differentiation. Nevertheless, they each have advantages and are valuable for current re- search. In practice, both indices should be calculated and a comparison of them can generate useful insights into the evolutionary processes that influence population differentiation. FsT （GsT） has some unique irreplaceable characteristics assuring its standing as the default measure for the foreseeable near future. Also, it will continue to serve as the standard for any alternative measures to contrast with. Instead of being anxious about making choice between these indices, one should pay due attention to the equili-brium status and the level of diversity （especially Hs） of the populations, since they largely sway the power of a given statistic to address a specific question. We provide a multi-faceted comparative summary of the various statistics, which can serve as a basic reference for readers to guide their applications [Current Zoology 61 （5）： 886-897, 2015].

关键词： Population structure and subdivision Coefficient of inbreeding Fixation index Gene identity Gene flow Non-equilibrium conditions Heterozygosity FST and selection

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