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Journal of Mountain Science 2022年第8期19卷 2202-2213页

作者： bao fang QIU Jian School of Architecture Southwest Jiaotong UniversityChengdu 611756China China Railway Eryuan Engineering Group Co. Ltd.Chengdu 610031China

Identifying the ecological vulnerability of the sensitive and fragile ecosystem of the Ya’anQamdo section along the southern route of the Sichuan-Tibet transport corridor is of paramount importance to reduce environmental damage resulting from infrastructure *** paper divided the Ya’an-Qamdo transport section into 22subzones according to their ecological environment *** on the vulnerability evaluation model established by the fuzzy matter-element analysis method,the eight main assessment indicators of ecological vulnerability were windstorm,rainstorm,snowstorm,extreme temperature,extreme air pressure,geological hazard,natural conditions,and social *** rating and ranking of vulnerability in each subzone were based on the weight of the judgment *** processes were used to verify the rationality of both the indicators themselves and their *** results of this study show that subzone 9,located in the subalpine cold and humid forest and scrubland zone,is the most vulnerable,and subzone 1,located in the low-to mid-land warm and humid forest zone,is the least *** conclusion of the study suggests that targeted measures of ecological protection should be formulated before development and construction of major transportation *** should evade the most vulnerable areas,and in-depth research on ecological restoration should be carried out in low-to midvulnerability areas so that the ecological environment along the route can be protected effectively for sustainable economic and social development.

关键词： Ecosystem Vulnerability Subzone Sichuan-Tibet transportation corridor

Continuous versus bolus cardiac output monitoring during orthotopic liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2008年第2期7卷 138-144页

作者： bao, fang-Ping Wu, Jian Zhejiang Univ Sch Med Dept Anesthesiol Affiliated Hosp 1 Hangzhou 310003 Zhejiang Peoples R China

BACKGROUND: Cardiac output monitoring is important for critical patients. This study aimed to determine the delayed response of continuous cardiac output (CCO) thermodilution measurement, whether CCO and bolus cardiac output (BCO) thermodilution agree sufficiently to be used interchangeably, and whether CCO monitoring is reliable for patients undergoing liver transplantation. METHODS: Thirteen patients undergoing liver transplantation without veno-venous bypass were studied (37-66 years old, weight 46-75 kg). Continuous and bolus thermodilution measurements were performed at predefined time points using an 'Opti-Q' SvO(2)/CCO monitor (Abbott Laboratories, North Chicago, IL, USA). Bias and 95% limits of agreement were calculated according to Bland and Altman analysis. The limits of agreement by which two methods are judged to be interchangeable were defined in advance as +/-(13%X BCO(mean)) L/min. The repeatability and relative error of CCO, and the differences between CCO and the mean of the two measurements were calculated. RESULTS: Cardiac output measurements yielded 196 data pairs with ranges of 1.9 to 17.9 L/min for CCO and 2.1 to 18.3 L/min for BCO. The response time of CCO was delayed in the early phases after caval clamping and after reperfusion. At most of the measurement points, bias and 95% limits of agreement were -0.18 +/- 1.91 L/min. 95% limits of agreement did not fall within the predetermined limits of agreement of +/- 1.14 L/min. The repeatability coefficient of CCO was 0.36 L/min and the relative error was 4.6 +/- 4.7%. The mean difference between CCO and the average of the two methods was -0.09 L/min (0.49 L/min). CONCLUSIONS: In patients undergoing liver transplantation, the delayed response of CCO limits its application during the early phases after caval clamping and after reperfusion of the graft. The two methods are not interchangeable even in hemodynamic stability. Continuous thermodilution monitoring, however, is reliable or acceptable for c

关键词： cardiac output thermodilution anesthesia liver transplantation

Active set strategy of optimized extreme learning machine

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Chinese Science Bulletin 2014年第31期59卷 4152-4160页

作者： Xiao-Jian Ding bao-fang Chang Science and Technology on Information Systems Engineering Laboratory School of Computer and Information Engineering Henan Normal University

Extreme learning machine(ELM)has been introduced as a simple and efficient learning approach for regression and classification *** the optimization point of view,optimized ELM is equivalent to SVM,but with less constraints in the optimization formulation and random ELM *** paper introduces an active set based optimized ELM approach to solve bound constrained optimization problem in a straightforward way,which operates on a small working set of variables at each ***,the constrained problem can be eventually solved by an unconstrained algorithm,and this enables us to establish a global convergence *** approach requires less time for quadratic programming solving and provides better generalization *** addition,the proposed approach with much smaller number of nonbound support values is significantly faster than SVM with active set strategy for large training data set.

关键词：优化配方学习机有效集策略约束优化问题支持向量机 ELM 学习方法应用程序

Determination of Quality Properties of Soy Sauce by Support Vector Regression Coupled with SW-NIR Spectroscopy

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Chemical Research in Chinese Universities 2011年第3期27卷 385-391页

作者： LIU Tong bao Chun-fang REN Yu-lin College of Chemistry Jilin UniversityChangchun 130021P.R.China Harbin Centre for Disease Control and Prevention Harbin 150056P.R.China

The modern near-infrared(NIR) spectroscopy analysis is a simple, efficient and nondestructive technique, which has been used in chemical analysis in diverse fields. Shortwave NIR spectroscopy is also a rapid, flexible, and cost-effective method to control product quality in food industry. The method of support vector regression coupled with shortwave NIR spectroscopy was explored for the nondestructive quantitative analysis of the important quality parameters of soy sauce, including amino nitrogen content, total acid content, salt content and color ratio. In this study, the support vector regression(SVR) models based on subtractive spectra and positive spectra were found and compared, the results show that the subtractive spectrum was more excellent than the positive spectrum. Meanwhile, R and RSE were determined, respectively, by means of original spectra and pretreated spectra[standard normal variate (SNV), first-derivative and second-derivative], and the corresponding models were successfully established. The best prediction was achieved by a support vector regression model of the first derivative transformed dataset. In addition, the result obtained by the proposed method was compared with that of Partial Least Squares(PLS), which showed that the generalization performance of the classifier based on SVR was much better than that of PLS. The results demonstrate that shortwave NIR spectroscopy combined with SVR is promising for the quality control of soy sauce.

关键词： Shortwave near-infrared spectroscopy Support vector regression Processing Soy sauce

Spin injection in a ferromagnet/resonant tunneling diode heterostructure

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Journal of University of Science and Technology Beijing 2008年第5期15卷 638-643页

作者： Jin bao fang Wan Yu Wang Xiaoguang Xu Yong Jiang School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

The spin transport property of a ferromagnet （FM）/insulator （Ⅰ）/resonant tunneling diode （RTD） heterostructure was studied. The transmission coefficient and spin polarization in a multilayered heterostructure was calculated by a Schrdinger wave equation. An Airy function formalism approach was used to solve this equation. Based on the transfer matrix approach,the transmittivity of the structure was determined as a function of the Feimi energy and other parameters. The result shows that the spin polarization induced by the structure oscillates with the increasing Fermi energy of the FM layer. While the thickness of the RTD is reduced,the resonant peaks become broad. In the heterostructure,the spin polarization reaches as high as 40% and can be easily controlled by the external bias voltage.

关键词： spin injection resonant tunneling diode heterostructure spin polarization

Identification of auxin responsive genes in Arabidopsis by cDNA array

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Chinese Science Bulletin 2002年第7期47卷 548-552页

作者： bao fang Hu Yuxin Li Jiayang Institute of Genetics Chinese Academy of Sciences100101BeijingChina

The plant hormone auxin influences a variety of developmental and physiological processes. But the mechanism of its action is quite unclear. In order to identify and analyze the expression of auxin responsive genes, a cDNA array approach was used to screen for genes with altered expression from Arabidopsis suspension culture after IAA treatment and was identified 50 differentially expressed genes from 13824 cDNA clones. These genes were related to signal transduction, stress responses, senescence, photosynthesis, protein biosynthesis and transportation. The results provide the molecular evidence that auxin influences a variety of physiological processes and pave a way for further investigation of the mechanism of auxin action. Furthermore, we found that the expression of a ClpC (regulation subunit of Clp protease) was repressed by exogenous auxin, but increased in dark-induced senescing leaves. This suggests that ClpC may be a senescence-associated gene and can be regulated by auxin.

关键词： cDNA array auxin responsive genes Arabidopsis thaliana ClpC senescence-associated genes.

Non-Equilibrium Grain-Boundary Segregation of Phosphorus And the Effective Time in Step Cooling Process

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材料热处理学报 2004年第5期25卷 263-266页

作者： LIQing-fen LILi LIUEr-bao CUIXiu-fang LIUDong CHENHong-bin CollegeofMechanicalandElectricalEngineering HarbinEngineeringUniversityHarbinChina

The non-equilibrium grain-boundary segregation of phosphorus in step cooling process in an industrial steel, 12CrlMoV, is studied based on the effective-time-method and compared with that in isothermal holding process. The non-equilibrium grain-boundary segregation concentration of phosphorus was measured with Auger Electron Spectroscopy (AES) and calculated based on the kinetic equations of non-equilibrium grain-boundary segregation. Results show that the calculated result is in good accordance with the experimental observation.

关键词：颗粒分离过冷却过程有效时间俄歇电子能谱学

Lattice Boltzmann model for interface capturing of multiphase flows based on Allen–Cahn equation

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Chinese Physics B 2022年第2期31卷 444-452页

作者： He Wang fang-bao Tian Xiang-Dong Liu Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 210096China School of Engineering and Information Technology University of New South WalesCanberraACT 2600Australia College of Electrical Energy and Power EngineeringYangzhou UniversityYangzhou 225127China

A phase-field-based lattice Boltzmann model is proposed for the interface capturing of multi-phase flows based on the conservative Allen–Cahn equation(ACE).By adopting the improved form of a relaxation matrix and an equilibrium distribution function,the time derivative?t(φ)induced by recovering the diffusion term in ACE is *** conducted Chapman–Enskog analysis demonstrates that the correct conservative ACE is *** benchmark cases including Zalesak’s disk rotation,vortex droplet,droplet impact on thin film,and Rayleigh–Taylor instability are investigated to validate the proposed *** numerical results indicate that the proposed model can accurately describe the complex interface deformation.

关键词： lattice Boltzmann method phase field multiphase flow

An IB-LBM study of continuous cell sorting in deterministic lateral displacement arrays

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Acta Mechanica Sinica 2016年第6期32卷 1023-1030页

作者： Qiang Wei Yuan-Qing Xu Xiao-Ying Tang fang-bao Tian School of Life Science Beijing Institute of Technology Key Laboratory of Convergence Medical Engineering System and Healthcare Technology The Ministry of Industry and Information Technology Beijing Institute of Technology School of Engineering and Information Technology University of New South Wales

The deterministic lateral displacement (DLD) is an important method used to sort particles and cells of different sizes. In this paper, the flexible cell sorting with the DLD method is studied by using a numerical model based on the immersed boundary-lattice Boltzmann method (IB-LBM). In this model, the fluid motion is solved by the LBM, and the cell membrane-fluid interaction is modeled with the LBM. The proposed model is validated by simulating the rigid particle sorted with the DLD method, and the results are found in good agreement with those measured in experiments. We first study the effect of flexibility on a single cell and multiple cells continuously going through a DLD device. It is found that the cell flexibility can significantly affect the cell path, which means the flexibility could have significant effects on the continuous cell sorting by the DLD method. The sorting characteristics of white blood cells and red blood cells are further studied by varying the spatial distribution of cylinder arrays and the initial cell-cell distance. The numerical results indicate that a well concentrated cell sorting can be obtained under a proper arrangement of cylinder arrays and a large enough initial cell-cell distance.

关键词： IB-LBM Cell sorting Deterministic lateral displacement

Effect of long-term topical latanoprost medication on conjunctival thickness in patients with glaucoma

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International Journal of Ophthalmology(English edition) 2018年第7期11卷 1158-1162页

作者： Qing-Song Li fang-fang bao Zhen-Yong Zhang Kai Ma Department of Ophthalmology Putuo Hospital Shanghai University of Traditional Chinese Medicine

AIM： To investigate the effect of long-term use of topically administered latanoprost on conjunctival thickness（CT） and conjunctival epithelium thickness（CET） in the patients with glaucoma. METHODS： A series of 106 glaucomatous patients were included. Of the 106 eyes, 55 eyes were treated with latanoprost eye drops once a day（latanoprost group）, while 51 eyes were treated with carteolol hydrochloride eye drops（carteolol group）. All the included patients completed a 2-year follow-up. CT and CET were measured with optical coherence tomography（OCT） in all patients at presentation and at 2-year visit, respectively. Statistical analysis was then performed to compare the change in CT and CET. RESULTS： At presentation, there was no difference in CET（t=0.400, P=0.689） or CT（t=1.14, P=0.259） between the two groups. No significant difference was found in CET（61.65±5.35 μm at baseline, 60.36±6.36 μm at 2-year follow-up, respectively; t=1.977, P=0.0531）, while there was a significant decrease in CT from 201.45±14.99 μm at baseline to 167.81±14.57 μm at 2-year visit（t=14.1407, P〈0.001） in the latanoprost group. At 2-year follow-up, no statistically difference was found in CET（62.24±5.27 μm; t=1.086, P=0.282） or CT（201.23±12.45 μm; t=1.44, P=0.154） compared to it at baseline（CET： 61.23±5.42 μm; CT： 198.76±13.68 μm, respectively） in the carteolol group. CONCLUSION： A significant decrease in conjunctival thickness is found in glaucoma patients treated with long-term topical latanoprost; its potential effect on the outcome of filtration surgery should be considered.

关键词： conjunctival thickness latanoprost glaucoma optical coherence tomography glaucoma surgery