|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effects of lanthanum nitrate on growth and chlorophyll fluorescence characteristics of Alternanthera philoxeroides under perchlorate stress显示文摘为了在 Alternanthera philoxeroides (市场) 上调查外长的镧(La ) 的效果,在高氯酸盐应力,在生长的变化和生理的参数下面的 Griseb 在控制条件下面在解决方案文化实验被调查。La (NO3 ) 的不同集中 3 在我们的学习被使用。0.1 和 0.5 mg/L La3+ 在 A 上减轻了高氯酸盐的抑制效果,这被显示出。philoxeroides,包括的相对生长收益,不同器官的干燥重量,叶区域和根活动。并且 La3+ 包括高氯酸盐应力导致的 Fv/Fm, Fv/Fm, PSII 和 ETR 在相对叶绿素内容和叶绿素荧光参数阻止了衰落。而且, 0.5 mg/L La3+ 显示出最佳的止痛剂效果,当过量 La3+(5.0 mg/L ) 在应力上导致了 synergistic 效果时。关联分析揭示了在索引和叶绿素荧光参数,根活动和相对叶绿素满足的生长之间的一种重要积极关系(p < 0.05 ) 。结果建议 La3+ 的适当集中能有效地减轻生长抑制和 A 的损害。高氯酸盐应力引起的 philoxeroides,和 La3+ 的止痛剂效果可能被改进根活动完成,维持叶绿素内容并且支持 A 的 photosystem II 的光化学的效率。在高氯酸盐应力下面的 philoxeroides。 | XIE Yinfeng CAI Xianlei LIU Weilong TAO Gongsheng CHEN Qian ZHANG Qiang | 2013 | Journal of Rare Earths2013，31，8： | 11 |
| 2 | Long-term Traffic Volume Prediction Based on K-means Gaussian Interval Type-2 Fuzzy Sets显示文摘This paper uses Gaussian interval type-2 fuzzy se theory on historical traffic volume data processing to obtain a 24-hour prediction of traffic volume with high precision. A K-means clustering method is used in this paper to get 5 minutes traffic volume variation as input data for the Gaussian interval type-2 fuzzy sets which can reflect the distribution of historical traffic volume in one statistical period. Moreover, the cluster with the largest collection of data obtained by K-means clustering method is calculated to get the key parameters of type-2 fuzzy sets, mean and standard deviation of the Gaussian membership function.Using the range of data as the input of Gaussian interval type-2 fuzzy sets leads to the range of traffic volume forecasting output with the ability of describing the possible range of the traffic volume as well as the traffic volume prediction data with high accuracy. The simulation results show that the average relative error is reduced to 8% based on the combined K-means Gaussian interval type-2 fuzzy sets forecasting method. The fluctuation range in terms of an upper and a lower forecasting traffic volume completely envelopes the actual traffic volume and reproduces the fluctuation range of traffic flow. | Runmei Li Yinfeng Huang Jian Wang | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，6： | 8 |
| 3 | Molecular characterization and m RNA expression of ribosomal protein L8 in Rana nigromaculata during development and under exposure to hormones显示文摘Like Xenopus laevis, some species of the Rana genus are also used to study endocrine disrupting chemicals(EDCs). Although ribosomal protein L8(rpl8) is the most-used reference gene for analyzing gene expression by quantitative reverse transcription polymerase chain reaction in Rana, its suitability as the reference gene has never been validated in any species of the Rana genus. We characterized rpl8 c DNA in Rana nigromaculata, a promising native species in East Asia for assaying endocrine disrupting effects. We found that the rpl8 c DNA consisted of919 bp and encoded 257 amino acids, exhibiting high identities of amino acid sequence with known rpl8 in other Rana species. Then, we examined the stability of m RNA expression during development. Compared with elongation factor 1 alpha 1, another common housekeeping gene, neither stage-specific nor tissue-specific expression of the rpl8 gene was found in all tissues examined(brain, liver, intestine, tail, testis and ovary) during R. nigromaculata development. Finally, we investigated rpl8 expression under exposure to hormones. No change in rpl8 m RNA expression was found under exposure to thyroid hormone(T4) and estrogen(estradiol), whereas expression of the corresponding biomarker genes was induced.Our results show that rpl8 is an appropriate reference gene for analyzing gene expression by quantitative reverse transcription polymerase chain reaction for assaying EDCs using R. nigromaculata, and might also provide support for using rpl8 as a reference gene in other Rana species due to the high conservation of rpl8 among the Rana genus. | Qinqin Lou Shan Cao Wei Xu Yinfeng Zhang Zhanfen Qin Wuji Wei | 2014 | Journal of Environmental Sciences2014，26，11： | 6 |
| 4 | Characterization of glucose-6-phosphate dehydrogenase deficiency and identification of a novel haplotype 487G>A/IVS5-612(G>C) in the Achang population of southwestern China显示文摘The prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency and its gene mutations were studied in the Achang population from Lianghe County in Southwestern China. We found that 7.31% (19 of 260) males and 4.35% (10 of 230) females had G6PD deficiency. The molecular analysis of G6PD gene exons 2―13 was performed by a PCR-DHPLC-Sequencing or PCR-Sequencing. Sixteen inde-pendent subjects with G6PD Mahidol (487G>A) and the new polymorphism IVS5-612 (G>C), which combined into a novel haplotype, were identified accounting for 84.2% (16/19). And 100% Achang G6PD Mahidol were linked to the IVS5-612 C. The percentage of G6PD Mahidol in the Achang group is close to that in the Myanmar population (91.3% 73/80), which implies that there are some gene flows between Achang and Myanmar populations. Interestingly, G6PD Canton (1376G>T) and G6PD Kaiping (1388G>A), which were the most common G6PD variants from other ethnic groups in China, were not found in this Achang group, suggesting that there are different G6PD mutation profiles in the Achang group and other ethnic groups in China. Our findings appear to be the first documented report on the G6PD genetics of the AChang people, which will provide important clues to the Achang ethnic group origin and will help prevention and treatment of malaria in this area. | YANG YinFeng, ZHU YueChun, LI DanYi, LI ZhiGang, Lü HuiRu, WU Jing, TANG Jing & TONG ShuFen Department of Biochemistry, Faculty of Basic Medicine, Kunming University of Medical Sciences, Kunming 650031, China These authors contributed equally to this work | 2007 | Science China(Life Sciences)2007，50，4： | 6 |
| 5 | Optimizing Mechanical Properties of AlCoCrFeNiTi_x High-Entropy Alloys by Tailoring Microstructures显示文摘The effects of Ti addtions and the heat treatment on the mechanical properties of AlCoCrFeNiTix (x = 0, 0.2, 0.3, 0.4 and 0.5) high-entropy alloys (HEAs) were studied. The results show that the dendrite phase with a body-centered-cubic (bcc) structure transforms into the interdendrite phase with a new bcc structure. With the increase of the Ti contents and heat-treatment temperature, the average hardness and yield strengths are greatly improved, and the highest hardness and yielding strength are 583 HV and 2.07 GPa, respectively in the investigated HEA system. The as-cast and annealed HEAs exhibit excellent mechanical properties, combining with high yielding strength and plasticity. The solid solution strengthening mechanism of Ti additions is responsible for the strengthening effect of AlCoCrFeNiTix HEAs. | Yinfeng WANG Shengguo MA Xiaohua CHEN Juyan SHI Yong ZHANG Junwei QIAO | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，3： | 6 |
| 6 | Precise output loads control of load-diffusion components with topology optimization显示文摘The purpose of this paper is to present a novel topology optimization approach to control precisely the output loads under static loads and harmonic excitations.We introduce the Artificial Bar Element(ABE)at the designated output positions,where the output loads are equivalently measured and constrained with the nodal displacements of ABE.Optimization model is then formulated considering the output load constraints as well as the minimization of strain energy and dynamic displacement responses respectively under the static and dynamic conditions.The influences of the ABEs stiffness,different material usages of the design domain,widths of the output loads constraint intervals and variation ratios of output loads are discussed in detail.The proposed method is verified with several numerical examples with clear and reasonable load transfer paths. | Yinfeng CAO Xiaojun GU Jihong ZHU Weihong ZHANG | 2020 | Chinese Journal of Aeronautics2020，33，3： | 5 |
| 7 | On consistency of the weighted arithmetical mean complex judgement matrix显示文摘The weighted arithmetical mean complex judgement matrix (WAMCJM) is the most common method for aggregating group opinions,but it has a shortcoming,namely the WAMCJM of the perfectly consistent judgement matrices given by experts canot guarantee its perfect consistency.An upper bound of the WAMCJM's consistency is presented.Simultaneously,a compatibility index of judging the aggregating extent of group opinions is also introduced.The WAMCJM is of acceptable consistency and is proved provided the compatibilities of all judgement matrices given by experts are smaller than the threshold value of acceptable consistency.These conclusions are important to group decision making. | Dong Yucheng Xu Yinfeng Ding Lili | 2007 | Journal of Systems Engineering and Electronics2007，18，3： | 4 |
| 8 | Dynamic Behaviors of Axially Moving Viscoelastic Plate with Varying Thickness显示文摘Structural components of varying thickness draw increasing attention these days due to economy and light-weight considerations. In view of the absence of research in vibration analysis of viscoelastic plate with varying thickness, this study devotes to investigate the dynamic behaviors of axially moving viscoelastic plate with varying thickness. Based on the thin plate theory and the two-dimensional viscoelastic differential constitutive relation, the differential equation of motion of the axially moving viscoelastic rectangular plate is derived, the plate constituted by Kelvin-Voigt model has linearly varying thickness in the y-direction. The dimensionless complex frequencies of axially moving viscoelastic plate with four edges simply supported are calculated by the differential quadrature method, curves of real parts and imaginary parts of the first three-order dimensionless complex frequencies versus dimensionless moving speed are obtained, the effects of the aspect ratio, thickness ratio, the dimensionless moving speed and delay time on the dynamic behaviors of the axially moving viscoelastic rectangular plate with varying thickness are analyzed. When other parameters keep constant, with the decrease of thickness ratio, the real parts of the first three-order natural frequencies decrease, and the critical divergence speeds of various modes decrease too, moreover, whether the delay time is large or small, the frequencies are all complex numbers. | ZHOU Yinfeng WANG Zhongmin | 2009 | Chinese Journal of Mechanical Engineering2009，22，2： | 4 |
| 9 | A screening assay for thyroid hormone signaling disruption based on thyroid hormone-response gene expression analysis in the frog Pelophylax nigromaculatus显示文摘Amphibian metamorphosis provides a wonderful model to study the thyroid hormone(TH)signaling disrupting activity of environmental chemicals, with Xenopus laevis as the most commonly used species. This study aimed to establish a rapid and sensitive screening assay based on TH-response gene expression analysis using Pelophylax nigromaculatus, a native frog species distributed widely in East Asia, especially in China. To achieve this, five candidate TH-response genes that were sensitive to T3 induction were chosen as molecular markers, and T3 induction was determined as 0.2 nmol/L T3 exposure for 48 hr. The developed assay can detect the agonistic activity of T3 with a lowest observed effective concentration of 0.001 nmol/L and EC50 at around 0.118–1.229 nmol/L, exhibiting comparable or higher sensitivity than previously reported assays. We further validated the efficiency of the developed assay by detecting the TH signaling disrupting activity of tetrabromobisphenol A(TBBPA), a known TH signaling disruptor. In accordance with previous reports, we found a weak TH agonistic activity for TBBPA in the absence of T3,whereas a TH antagonistic activity was found for TBBPA at higher concentrations in the presence of T3, showing that the P. nigromaculatus assay is effective for detecting TH signaling disrupting activity. Importantly, we observed non-monotonic dose-dependent disrupting activity of TBBPA in the presence of T3, which is difficult to detect with in vitro reporter gene assays. Overall, the developed P. nigromaculatus assay can be used to screen TH signaling disrupting activity of environmental chemicals with high sensitivity. | Yinfeng Zhang Yuanyuan Li Zhanfen Qin Huili Wang Jianzhong Li | 2015 | Journal of Environmental Sciences2015，27，8： | 4 |
| 10 | Advanced optimization of gas turbine aero-engine transient performance using linkage-learning genetic algorithm:PartⅡ,optimization in flight mission and controller gains correlation development显示文摘PartⅠhas illustrated the procedures to apply the Linkage Learning Genetic Algorithm(LLGA)in Gas Turbine Engine(GTE)controller gains tuning and generated the optimization results for runway conditions from idle to takeoff.However,the total pressure and temperature of the engine inlet vary as the changing of altitude and Mach number,which would lead to the variation in fuel flow supply regulation.As a result,the optimized gains in runway might not be suitable for other flight conditions.In order to maintain the optimal control performance,the GTE controller gains should be adjusted according to the flight conditions.This paper extends the application of the LLGA method to other flight conditions and then simulates a complete flight mission with different gains and weather condition configurations.For this purpose,the control parameters in the Simulink model of the GTE controller are first corrected by the weather condition in altitude.Then,a typical flight mission is defined and divided into different flight segments based on the altitude and Mach number configuration.One representative point is selected from each segment as the datum point for optimization process.After this step,the LLGA method is used to find the best gains combinations for different flight conditions and the differences in optimization effects for different flight conditions are analyzed subsequently.The simulation results show that the optimization effect of the control performance of each flight condition is dependent on the value of(θδ)~(1/2)and the optimal K_(pla)in some flight conditions is approximately equal to p hd times of the Kplavalue in sea level standard condition.Finally,the complete flight mission is simulated with different gains and weather condition configurations.The simulation results show that the engine performance has been greatly improved after optimization by LLGA in the transient state and the high altitude conditions.In other steady states,the optimization effect is not very obvious. | Yinfeng LIU Soheil JAFARI Theoklis NIKOLAIDIS | 2021 | Chinese Journal of Aeronautics2021，34，4： | 3 |
| 11 | Molecular characterization and developmental expression patterns of thyroid hormone receptors(TRs) and their responsiveness to TR agonist and antagonist in Rana nigromaculata显示文摘Considering some advantages of Rana nigromaculata as an experimental species, we propose that this species, like Xenopus laevis, could be used to assay thyroid hormone(TH) signaling disrupting actions. To validate the utilizability of R. nigromaculata, we investigated the responsiveness of R. nigromaculata to a TH receptor(TR) agonist(T3) and antagonist(amiodarone) by analyzing expression, based on characterizing TR cDNA and developmental expression patterns. With high levels of identity with the corresponding genes in X. laevis, both TRα and TRβ in R. nigromaculata exhibited roughly similar developmental expression patterns to those of X. laevis, in spite of some species-specific differences. Both TRα and TRβ expression had greater changes in the liver and intestine than in the tail and brain during metamorphosis. T3 exposure for 2 days induced more dramatic increases of TRβ expression in stage 27 than in stage34 tadpoles but not in stage 42 tadpoles, showing that the responsiveness of R. nigromaculata to TH decreased with development and disappeared at the onset of metamorphic climax.Corresponding to greater changes of TRβ expression in the liver and intestine than in the tail and brain during metamorphosis, the liver and intestine had higher responsiveness to exogenous T3 than the tail and brain. Amiodarone inhibited T3-induced TRβ expression. Our results show that R. nigromaculata can be used as a model species for assaying TH signaling disrupting actions by analyzing TRβ expression, and intestine tissues at stage 27 are ideal test materials due to high responsiveness and easy accessibility. | Qinqin Lou Yinfeng Zhang Dongkai Ren Haiming Xu Yaxian Zhao Zhanfen Qin Wuji Wei | 2014 | Journal of Environmental Sciences2014，26，10： | 3 |
| 12 | Preparation of Cordierite-mullite Ceramics for Solar Thermal Storage显示文摘We developed cordierite-mullite composite ceramic materials to package and encapsulate PCM, and presented a preparation process from raw materials of kaolin, talc and alumina. The properties and microstructre of cordierite-mullite composite ceramic were studied. Due to the strengthening effects of mullite, the sample C2(80 wt% of cordierite and 20 wt % of mullite) sintered at 1 420 ℃ possessed excellent physical properties. Determined by X-ray diffraction(XRD), scanning electron microscope(SEM) and energy dispersive spectroscopy(EDS) analysis, cuboid-shaped cordierite crystals and needle-like or long quadrilateral-prism mullite crystals with staggered patterns were found, which endowed the composites preferable mechanical strength. After 30 cycles of thermal shock(room temperature to about 1 100 ℃, air-cooled), the sample presented superior thermal shock resistance, which is suitable to be applied as solar thermal storage materials. | 吴建锋 陆成龙 XU Xiaohong ZHANG Yinfeng | 2019 | Journal of Wuhan University of Technology(Materials Science)2019，34，5： | 2 |
| 13 | Optimization of the T3-induced Xenopus metamorphosis assay for detecting thyroid hormone signaling disruption of chemicals显示文摘T3-induced Xenopus metamorphosis is an ideal model for detecting thyroid hormone(TH)signaling disruption of chemicals. To optimize the T3-induced Xenopus assay and improve its sensitivity and reproducibility, we intend to develop quantitatively morphological endpoints and choose appropriate concentrations and exposure durations for T3 induction.Xenopus laevis at stage 52 were exposed to series of concentrations of T3(0.31–2.5 nmol/L)for 6 days. By comparing morphological changes induced by T3, we propose head area,mouth width, unilateral brain width/brain length, and hindlimb length/snout-vent length as quantitative parameters for characterizing T3-induced morphological changes, with body weight as a parameter for indicating integrated changes. By analyzing time-response curves, we found that following 4-day exposure, T3-induced grossly morphological changes displayed linear concentration–response curves, with moderate morphological changes resulting from 1.25 nmol/L T3 exposure. When using grossly morphological endpoints to detect TH signaling disruption, we propose 4 days as exposure duration of T3, with concentrations close to 1.25 nmol/L as induction concentrations. However, it is appropriate to examine morphological and molecular changes of the intestine on day 2 due to their early response to T3. The quantitative endpoints and T3 induction concentrations and durations we determined would improve the sensitivity and the reproducibility of the T3-induced Xenopus metamorphosis assay. | Xiaofang Yao Xiaoying Chen Yinfeng Zhang Yuanyuan Li Yao Wang Zongming Zheng Zhanfen Qin Qingdong Zhang | 2017 | Journal of Environmental Sciences2017，29，2： | 2 |
| 14 | Advanced optimization of gas turbine aero-engine transient performance using linkage-learning genetic algorithm:PartⅠ,building blocks detection and optimization in runway显示文摘This paper proposes a Linkage Learning Genetic Algorithm(LLGA)based on the messy Genetic Algorithm(mGA)to optimize the Min-Max fuel controller performance in Gas Turbine Engine(GTE).For this purpose,a GTE fuel controller Simulink model based on the Min-Max selection strategy is firstly built.Then,the objective function that considers both performance indices(response time and fuel consumption)and penalty items(fluctuation,tracking error,overspeed and acceleration/deceleration)is established to quantify the controller performance.Next,the task to optimize the fuel controller is converted to find the optimization gains combination that could minimize the objective function while satisfying constraints and limitations.In order to reduce the optimization time and to avoid trapping in the local optimums,two kinds of building block detection methods including lower fitness value method and bigger fitness value change method are proposed to determine the most important bits which have more contribution on fitness value of the chromosomes.Then the procedures to apply LLGA in controller gains tuning are specified stepwise and the optimization results in runway condition are depicted subsequently.Finally,the comparison is made between the LLGA and the simple GA in GTE controller optimization to confirm the effectiveness of the proposed approach.The results show that the LLGA method can get better solution than simple GA within the same iterations or optimization time.The extension applications of the LLGA method in other flight conditions and the complete flight mission simulation will be carried out in partⅡ. | Yinfeng LIU Soheil JAFARI Theoklis NIKOLAIDIS | 2021 | Chinese Journal of Aeronautics2021，34，4： | 2 |
| 15 | Biomass-based aligned carbon networks with double-layer construction for tunable electromagnetic shielding with ultra-low reflectivity显示文摘Nowadays,carbon frameworks derived from natural biomaterials have attracted extensive attention for electromagnetic interference(EMI)shielding due to their renewability and affordability.However,it is critical and challenging to achieve effective regulation of shielding effectiveness(SE)as well as weaken the strong EM reflection of highly conductive biomass-based carbon materials.Herein,commercial cotton pads with oriented structure were selected as carbonaceous precursor to fabricate aligned carbon networks by pyrolysis,and the EMI SE of the samples with increased temperature of 800-1000℃ can be accurately controlled in the effective range of~21.7-29.1,~27.7-37.1 and~32.7-43.3 d B with high reflection coefficient of>0.8 by changing the cross-angle between the electric-field direction of incident EM waves and the fiber-orientation direction due to the occurrence of opposite internal electric field.Moreover,the further construction of Salisbury absorber-liked double-layer structure could result in an ultralow reflection coefficient of only~0.06 but enhanced SE variation range up to~38.7-49.3 d B during the adjustment of cross-angle,possibly due to the destructive interference of EM waves in the double-layer carbon networks.This work would provide a simple and effective way for constructing high-performance biomass carbon materials with adjustable EMI shielding and ultra-low reflectivity. | Jiali Chen Da Yi Xichen Jia Guoqing Wang Zhouping Sun Lihua Zhang Yinfeng Liu Bin Shen Wenge Zheng | 2022 | Journal of Materials Science & Technology2022，，8： | 2 |
| 16 | Expression of active recombinant human lactoferrin in the milk of transgenic goats显示文摘 | ZHANG Jie LI Lin CAI Yinfeng | 2008 | Protein Expr Purif2008，57，： | 1 |
| 17 | Preparation and Formation Process of Ni2+Fe3+CO32- LDHs Materials with High Crystallinity and Well-Defined Hexagonal Shapes显示文摘 | Han Yinfeng Li Hongjuan Ma Xiangrong | 2009 | Solid State Sciences2009，11，12： | 1 |
| 18 | Impact of Simultaneous Activities on Frequency Fluctuations:Comprehensive Analyses Based on Real Measurement Data from the FNET/GridEye显示文摘Simultaneous human activities,such as the Super Bowl game,would cause certain impacts on frequency fluctuations in power systems.With the help of FNET/GridEye measurements,this paper aims to give comprehensive analyses on the frequency fluctuations during Super Bowl LIV held on Feb.2,2020,so as to better understand several phenomena caused by simultaneous activities which will help system operations and controls.First,recent developments of the FNET/GridEye are briefly introduced.Second,the frequency fluctuations of the Eastern Interconnection(El),western electricity coordinating council(WECC),and electric reliability council of Texas(ERCOT)power systems during Super Bowl LIV are analyzed.Third,frequency fluctuations of Super Bowl Sunday and ordinary Sundays in 2020 are compared.Finally,the differences of frequency fluctuations among different years during the Super Bowl and their change trends are also given.Furthermore,several possible explanations,including the simultaneity of electricity consumption at the beginning of commercial breaks and the halftime show,the increasing usage of the Internet,and the increasing size of TV screens,are illustrated in detail in this paper. | Shengyuan Liu Shutang You Chujie Zeng Yinfeng Zhao Wenxuan Yao Yilu Liu Zhenzhi Lin | 2021 | CSEE Journal of Power and Energy Systems2021，7，2： | 1 |
| 19 | Reconstruction by Pancreaticogastrostomy versus Pancreaticojejunostomy following Pancreaticoduodenectomy: A Meta-Analysis of Randomized Controlled Trials显示文摘 | YinFeng Shen WenYin Jin Jose G. de la Mora-Levy | 2012 | Gastroenterology Research and Practice2012，，： | 1 |
| 20 | Competitive algorithms problem in probabilistic environments显示文摘 | Xu Weijun | 2004 | Lecture Notes in Computer Science Germany:Springer-Ver lag2004，3174，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员