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USTER launched five value modules for the Quality Management Platform at ITMA
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《China Textile》 2019年第7期26-26,共1页
At ITMA, five “Value Modules” for USTER QUALITY EXPERT were launched, after successful testing by customers around the globe. These modules gave spinners an objective and accurate view of the entire spinning process... At ITMA, five “Value Modules” for USTER QUALITY EXPERT were launched, after successful testing by customers around the globe. These modules gave spinners an objective and accurate view of the entire spinning process, leading to higher yields and consistent quality:“Managing a textile mill with quality in mind” in practice. 展开更多
关键词 USTER valuE moduleS Management PlATFORM
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A NOTE ON SAMPLE PATH PROPERTIES OF l^p-VALUED GAUSSIAN PROCESSES 被引量:4
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作者 Wei Qicai Chen Liyuan 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2000年第4期461-469,共9页
The a.s.sample path properties for l p valued Gaussian processes with stationary increments under some more general conditions are established.
关键词 l p valued Gaussian processes stationary increments moduli of continuity.
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The miR164-TaNAC14 module regulates root development and abiotic-stress tolerance in wheat seedlings 被引量:6
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作者 CHI Qing DU Lin-ying +6 位作者 MA Wen NIU Ruo-yu WU Bao-wei GUO Li-jian MA Meng LIU Xiang-li ZHAO Hui-xian 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2023年第4期981-998,共18页
Previous studies have revealed the miR164 family and the miR164-targeted NAC transcription factor genes in rice(Oryza sativa)and Arabidopsis that play versatile roles in developmental processes and stress responses.In... Previous studies have revealed the miR164 family and the miR164-targeted NAC transcription factor genes in rice(Oryza sativa)and Arabidopsis that play versatile roles in developmental processes and stress responses.In wheat(Triticum aestivum L.),we found nine genetic loci of tae-miR164(tae-MIR164 a to i)producing two mature sequences that downregulate the expression of three newly identified target genes of TaNACs(TaNAC1,TaNAC11,and TaNAC14)by the cleavage of the respective mRNAs.Overexpression of tae-miR164 or one of its target genes(TaNAC14)demonstrated that the miR164-TaNAC14 module greatly affects root growth and development and stress(drought and salinity)tolerance in wheat seedlings,and TaNAC14 promotes root growth and development in wheat seedlings and enhances drought tolerance,while tae-miR164 inhibits root development and reduces drought and salinity tolerance by downregulating the expression of TaNAC14.These findings identify the miR164-TaNAC14 module as well as other taemiR164-regulated genes which can serve as new genetic resources for stress-resistance wheat breeding. 展开更多
关键词 Triticum aestivum l. tae-miR164 miR164-targeted TaNACs miR164-TaNAC14 module growth and development abiotic-stress tolerance
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APPROXIMATION ANALYSES FOR FUZZY VALUED FUNCTIONS IN L_1(μ)-NORM BY REGULAR FUZZY NEURAL NETWORKS 被引量:4
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作者 Liu Puyin (Dept. of System Eng. and Math., National Univ. of Defence Tech., Changsha 410073) 《Journal of Electronics(China)》 2000年第2期132-138,共7页
By defining fuzzy valued simple functions and giving L1(μ) approximations of fuzzy valued integrably bounded functions by such simple functions, the paper analyses by L1(μ)-norm the approximation capability of four-... By defining fuzzy valued simple functions and giving L1(μ) approximations of fuzzy valued integrably bounded functions by such simple functions, the paper analyses by L1(μ)-norm the approximation capability of four-layer feedforward regular fuzzy neural networks to the fuzzy valued integrably bounded function F : Rn → FcO(R). That is, if the transfer functionσ: R→R is non-polynomial and integrable function on each finite interval, F may be innorm approximated by fuzzy valued functions defined as to anydegree of accuracy. Finally some real examples demonstrate the conclusions. 展开更多
关键词 FUZZY valued simple function REGUlAR FUZZY neural network l1(μ) APPROXIMATION Universal approximator
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About Moore-Sm ith Convergence on l-Module 被引量:1
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作者 袁俭 徐扬 《Chinese Quarterly Journal of Mathematics》 CSCD 1998年第4期35-40, ,共6页
In this paper,we first defined an important concept of convergence on l * module,which is a double lattice ordered algebraic sturcture,then discussed the properties about the convergence,finally built up a topology na... In this paper,we first defined an important concept of convergence on l * module,which is a double lattice ordered algebraic sturcture,then discussed the properties about the convergence,finally built up a topology named l * topology. 展开更多
关键词 l %MUl% module lATTICE net lattice converge l %MUl% topology
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Unintentional modulation evaluation in time domain and frequency domain 被引量:1
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作者 Liting SUN Xiang WANG Zhitao HUANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2022年第4期376-389,共14页
With the development of wireless communication technology, the electromagnetic environment has become more and more complex. Conventional signal identification methods are difficult to accurately identify illegal devi... With the development of wireless communication technology, the electromagnetic environment has become more and more complex. Conventional signal identification methods are difficult to accurately identify illegal devices. However, electromagnetic signals have an unavoidable device-specific characteristic unintentionally generated by a transmitter, appearing in the form of an Un Intentional Modulation(UIM), namely Radio Frequency Fingerprint(RFF). RFFs can be used to uniquely identify an emitter to match a received signal with its source. In this paper, the authors propose a novel RFF scheme to separate UIM part from the original signals from the time and frequency domain, and then utilize non-Gaussian measuring tools to extract a set of dimensionreduced secondary features. Additionally, Singular Value Reconstruction(SVR) is developed to extract UIM in the frequency spectrum. In time domain, a curve-fitting residual method is proposed to extract the UIM on the estimated instantaneous phase based on Maximum Likelihood Estimator(MLE). Various aspects of the proposed method are evaluated, including identification accuracy under various Signal-to-Noise Ratio(SNR) conditions, energy relationships between the UIM and the whole signal, and sensitivity to training set size. Compared with other methods, experimental results based on real-world signals prove that the proposed method has remarkable performance and high practicability. 展开更多
关键词 Instantaneous phase estimation Pattern recognition Radio Frequency Fingerprint(RFF) Singular value Decomposition(SVD) Un Intentional modulation(UIM)
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Essential cellular modules for the proliferation of the primitive cell 被引量:1
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作者 Koichi Higashi Yoshikazu Kawai +2 位作者 Tomoya Baba Ken Kurokawa Taku Oshima 《Geoscience Frontiers》 SCIE CAS CSCD 2018年第4期1155-1161,共7页
Bacteria appeared early in the evolution of cellular life on planet Earth, and therefore the universally essential genes or biological pathways found across bacterial domains may represent fundamental genetic or cellu... Bacteria appeared early in the evolution of cellular life on planet Earth, and therefore the universally essential genes or biological pathways found across bacterial domains may represent fundamental genetic or cellular systems used in early life. The essential genes and the minimal gene set required to support bacterial life have recently been experimentally and computationally identified. It is, however,still hard to estimate the ancient genes present in primitive cells compared to the essential genes in contemporary bacteria, because we do not know how ancestral primitive cells lived and proliferated, and therefore cannot directly evaluate the essentiality of the genes in ancestral primitive cells. The cell wall is normally essential for bacterial proliferation and cellular division of walled bacterial cells is normally highly controlled by the essential FtsZ cell division machinery. But, bacteria are capable of reverting to their cell wall deficient ancestral form, called the "L-form". Unlike "normal" cells, L-forms divide by a simple physical mechanism based on the effects of membrane dynamics, suggesting a mode of primitive proliferation before the appearance of the cell wall. In this review, we summarize the experimental and computational investigations of minimal gene sets and discuss the minimal cellular modules required to support the proliferation of primitive cells, based on L-form proliferation. 展开更多
关键词 l-FORM Essential genes Minimal gene set KEGG module BACTERIA
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Extended l*-Module
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作者 NIU Yu-qi MENG Xiao-ran YUAN Jian 《Chinese Quarterly Journal of Mathematics》 CSCD 2010年第3期390-398,共9页
Theory of uncertainty reasoning base on l-module of true value field,in this paper,an extended l-module was proposed,some properties and lattice measure were discussed,then the lattice integral on l-module was gained.
关键词 true value field l%MUl%-module lattice measure lattice integral
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CONTINUITY OF l^2-VALUED TWO-PARAMETER ORNSTEIN UHLENBECK PROCESSES
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作者 Wen JiweiDept. of Math.,Zhejiang Univ.(Xixi Campus),Hangzhou 310028. 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2001年第4期423-429,共7页
Let {Y (t);t= (t 1,t 2)≥0}={X k(t 1,t 2);t 1≥0,t 2≥0} ∞ k=1 be a sequence of two parameter Ornstein Uhlenbeck processes (OUP 2) with coefficients α k>0,β k>0 . A Fernique type in... Let {Y (t);t= (t 1,t 2)≥0}={X k(t 1,t 2);t 1≥0,t 2≥0} ∞ k=1 be a sequence of two parameter Ornstein Uhlenbeck processes (OUP 2) with coefficients α k>0,β k>0 . A Fernique type inequality is established and the sufficient condition for a.s. l 2 continuity of Y(·) is studied by means of the inequality. 展开更多
关键词 l 2 valued two parameter Ornstein Uhlenbeck processes Fernique type inequality continuity.
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Role of mitophagy in spinal cord ischemia-reperfusion injury
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作者 Yanni Duan Fengguang Yang +7 位作者 Yibao Zhang Mingtao Zhang Yujun Shi Yun Lang Hongli Sun Xin Wang Hongyun Jin Xuewen Kang 《Neural Regeneration Research》 2026年第2期598-611,共14页
Spinal cord ischemia-reperfusion injury,a severe form of spinal cord damage,can lead to sensory and motor dysfunction.This injury often occurs after traumatic events,spinal cord surgeries,or thoracoabdominal aortic su... Spinal cord ischemia-reperfusion injury,a severe form of spinal cord damage,can lead to sensory and motor dysfunction.This injury often occurs after traumatic events,spinal cord surgeries,or thoracoabdominal aortic surgeries.The unpredictable nature of this condition,combined with limited treatment options,poses a significant burden on patients,their families,and society.Spinal cord ischemia-reperfusion injury leads to reduced neuronal regenerative capacity and complex pathological processes.In contrast,mitophagy is crucial for degrading damaged mitochondria,thereby supporting neuronal metabolism and energy supply.However,while moderate mitophagy can be beneficial in the context of spinal cord ischemia-reperfusion injury,excessive mitophagy may be detrimental.Therefore,this review aims to investigate the potential mechanisms and regulators of mitophagy involved in the pathological processes of spinal cord ischemia-reperfusion injury.The goal is to provide a comprehensive understanding of recent advancements in mitophagy related to spinal cord ischemia-reperfusion injury and clarify its potential clinical applications. 展开更多
关键词 BNIP3 BNIP3l/NIX FUNDC1 MECHANISM MITOCHONDRIA MITOPHAGY modulators PARKIN PINK1 spinal cord ischemia-reperfusion injury
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一种L波段双模高功率小型化收发组件的设计
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作者 兰宝岩 王富康 《通信与信息技术》 2026年第1期36-39,共4页
针对有源相控阵雷达系统对高功率收发组件轻量化、小型化的应用需求,设计了一款L波段双模高功率小型化收发组件。通过采用双模功放技术,将高功率低占空比、低功率高占空比的两个发射通道合并为一个发射通道,从电路原理上实现了收发组件... 针对有源相控阵雷达系统对高功率收发组件轻量化、小型化的应用需求,设计了一款L波段双模高功率小型化收发组件。通过采用双模功放技术,将高功率低占空比、低功率高占空比的两个发射通道合并为一个发射通道,从电路原理上实现了收发组件的小型化与轻量化。并通过微组装电路和芯片化电路技术,实现了本振功分与放大、功率放大、低噪声放大、滤波、电源调制、功率检测等功能电路的高密度集成。电路测试及热仿真结果表明,组件在工作频带内满足发射功率、接收噪声系数等指标要求,且具备良好的散热设计,收发组件尺寸仅为115mm×30mm×16mm,重量小于120g。 展开更多
关键词 收发组件 l波段 小型化 双模 热设计
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2-D Direction-of-arrival Estimation of Real-valued Sources
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作者 顾建峰 魏平 《Journal of Electronic Science and Technology of China》 2006年第3期265-268,共4页
A new method is presented to estimate two-dimensional (2-D) Direction-of-Arrival (DOA) angles of narrowband real-valued signals impinging on a L-shape Arrays(LA). The basic idea of the proposed method is to incr... A new method is presented to estimate two-dimensional (2-D) Direction-of-Arrival (DOA) angles of narrowband real-valued signals impinging on a L-shape Arrays(LA). The basic idea of the proposed method is to increase both the effective aperture size and the number of sensors by employing the conjugate invariance property of real-valued signals. Thus, the proposed method can provide a more precise DOA and detect more signals than the Cross-Correlation Matrix Method (CCMM). Numerical simulation results are presented to support the theory. 展开更多
关键词 real-valued signals Direction of Arrival (DOA) l-shape Arrays lA)
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Modularity,module reintegration and industry landscape remaking
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作者 李晓华 《China Economist》 2010年第5期119-128,共10页
The turn-key solution originated by Media Tek Inc.(MTK) changed the degree of handset modularity and sparked therise of "knockoff handsets’’ This paper holds that modularity is not a product of independent evol... The turn-key solution originated by Media Tek Inc.(MTK) changed the degree of handset modularity and sparked therise of "knockoff handsets’’ This paper holds that modularity is not a product of independent evolution and that thechange in the degree of product modularity will lead to a change in the product’s organizational structure.Modulereintegration has reduced the industry’s knowledge barrier and made it possible for a large number of low-tech firms toenter the industry in China.As a result, it has altered the industry’s competitive landscape.Module reintegration can betaken as an important path for industrial upgrade, and the industry regulatory policies shall also be adjusted accordingto the changes in this industry’s characteristics. 展开更多
关键词 modulARITY module REINTEGRATION value CHAIN INDUSTRY lANDSCAPE
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Correlation Analysis of SPAD Value with Chlorophyll Content and Economic Yield Traits of Brassica napus L. 被引量:6
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作者 高建芹 浦惠明 +4 位作者 张洁夫 龙卫华 陈锋 周晓婴 张维 《Agricultural Science & Technology》 CAS 2013年第10期1421-1428,共8页
[Objective] The aim was to compare differences of SPAD value, chloro- phyll content, agronomic characters, economic characters and yield traits to analyze correlation of SPAD value with other indices and establish reg... [Objective] The aim was to compare differences of SPAD value, chloro- phyll content, agronomic characters, economic characters and yield traits to analyze correlation of SPAD value with other indices and establish regression functions. [Method] Based on 34 Brassica napus L. varieties, SPAD value, chlorophyll content, agronomic characters, economic characters and yield traits were measured and re- gression functions were established according to correlations. [Result] SPAD value, chlorophyll content, agronomic and economic characters and yield traits all achieved significant level in differences among 34 varieties. Specifically, SPAD value was of extremely significant correlation with chlorophyll a and b, total chlorophyll and carotenoid, and the correlation from high to low was chl-b〉chl-z〉chl-a〉chl-x. SPAD value was of significantly positive correlation with total pod number per plant, plant height, seed number per pod, yield per plant and harvest yield, and of insignificant correlation with branch point height, effective branch number, pod density of main stem, and pod length. [Conclusion] It is simple and rapid to predict chlorophyll con- tent, economic characters and yields of Brassica napus L. with SPAD value and re- gression functions. 展开更多
关键词 Brassica napus l. SPAD value Chlorophyll content Economic yield Correlation analysis
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MRSA感染重症肺炎患者NLRP3、Caspase-1、TLR4 mRNA水平与病情程度及预后的关联 被引量:2
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作者 王莉莉 李东玲 +2 位作者 张婧岑 黄文龙 孙诗尧 《中华医院感染学杂志》 北大核心 2025年第3期336-340,共5页
目的研究耐甲氧西林金黄色葡萄球菌(MRSA)感染重症肺炎患者核苷酸结合寡聚化结构域样受体蛋白3(NLRP3)、半胱氨酸蛋白酶1(Caspase-1)、Toll样受体4(TLR4)信使核糖核酸(mRNA)水平,并分析各指标与病情程度及预后的关系。方法选取中国医科... 目的研究耐甲氧西林金黄色葡萄球菌(MRSA)感染重症肺炎患者核苷酸结合寡聚化结构域样受体蛋白3(NLRP3)、半胱氨酸蛋白酶1(Caspase-1)、Toll样受体4(TLR4)信使核糖核酸(mRNA)水平,并分析各指标与病情程度及预后的关系。方法选取中国医科大学附属盛京医院2020年6月—2023年6月收治的103例MRSA感染肺炎患者设为MRSA感染组,同期收治的112例常规感染肺炎患者设为非MRSA感染组。统计两组外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA水平,比较不同病情程度MRSA感染肺炎患者及不同预后MRSA感染重症肺炎患者外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA水平。采用受试者工作特征(ROC)曲线分析外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA对MRSA感染重症肺炎患者预后的预测价值。结果MRSA感染组外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA分别为(1.53±0.29)、(2.04±0.49)、(1.04±0.32)高于非MRSA感染组(P<0.05)。重症MRSA感染组外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA水平高于非重症MRSA感染组(P<0.05)。预后不良组外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA分别为(2.47±0.72)、(2.84±0.90)、(1.94±0.63)高于预后良好组(P<0.05)。外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA联合预测MRSA感染重症肺炎患者预后的曲线下面积(AUC)为0.853,高于三者单独检测(P<0.05)。结论随着MRSA感染肺炎患者病情的发生和进展,外周血NLRP3 mRNA、Caspase-1 mRNA、TLR4 mRNA水平升高,且三者联合对MRSA感染重症肺炎患者预后的预测价值较高。 展开更多
关键词 重症肺炎 耐甲氧西林金黄色葡萄球菌 核苷酸结合寡聚化结构域样受体蛋白3 半胱氨酸蛋白酶1 Toll样受体4 信使核糖核酸 病情程度 预后 预测价值
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Effects of Plant Density on Forage Nutritive Value of Whole Plant Corn 被引量:4
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作者 ZHANGJi-wang HUChang-hao WANGKong-jun DONGShu-ting LIUPeng 《Agricultural Sciences in China》 CAS CSCD 2004年第11期842-848,共7页
In the field experiment, the effects of plant densities (75 000, 112 500 and 150 000 plants ha-1) on forage nutritive value of whole plant corn (WPC) were studied from 1999 to 2001. The results demonstrated that wit... In the field experiment, the effects of plant densities (75 000, 112 500 and 150 000 plants ha-1) on forage nutritive value of whole plant corn (WPC) were studied from 1999 to 2001. The results demonstrated that with the increasing of plant density, the forage matter yield per plant corn decreased significantly, while the fresh matter and dry matter per hectare corn increased significantly, and a higher grains yield was gotten at higher plant densities. Forage nutritive quality of whole plant corn was changed as plant density increased, the crude protein (CP), ether extract (EE), crude fiber (CF), nitrogen free extract (NFE) and general energy (GE) yields increased obviously. Increas- ing plant density reasonably with the application of plant growth regulators could improve plant properties, harvest more forage matter, and enhance forage nutritive value of WPC. 展开更多
关键词 Summer corn(Zey mays l.) Plant density Forage nutritive value
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L吸收边密度计的校准
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作者 张倩慈 康海英 +2 位作者 郑维明 朱海巧 陶苗苗 《化学分析计量》 2025年第6期118-121,共4页
依据L吸收边光谱法的测量原理及用于料液中铀含量测定的特点,建立了L吸收边密度计的校准方法。校准项目包括能量分辨率、测量线性、重复性、元素测量值的相对示值误差及稳定性,对元素测量值的相对示值误差的校准结果进行了不确定度评定... 依据L吸收边光谱法的测量原理及用于料液中铀含量测定的特点,建立了L吸收边密度计的校准方法。校准项目包括能量分辨率、测量线性、重复性、元素测量值的相对示值误差及稳定性,对元素测量值的相对示值误差的校准结果进行了不确定度评定。根据校准示例结果及相关验证,参考计量特性,能量分辨率不大于140 eV,测量线性相关系数大于0.999,重复性优于0.50%,元素测量值的相对示值误差不大于±1.50%,稳定性不大于2.00%。当铀质量浓度为76.01 g/L时,测量重复性为0.20%,元素测量值的相对示值误差为0.68%,稳定性为0.46%。该校准方法为L吸收边密度计法测量后处理料液中铀、钚含量时的溯源技术研究提供参考。 展开更多
关键词 l吸收边光谱仪 校准 能量分辨率 测量线性 重复性 元素测量值的相对示值误差 稳定性 不确定度
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Detection of QTLs with Additive Effects, Epistatic Effects, and QTL × Environment Interactions for Zeleny Sedimentation Value Using a Doubled Haploid Population in Cultivated Wheat 被引量:2
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作者 ZHAO Liang LIU Bin ZHANG Kun-pu TIAN Ji-chun DENG Zhi-ying 《Agricultural Sciences in China》 CAS CSCD 2009年第9期1039-1045,共7页
In order to understand the genetic basis for Zeleny sedimentation value (ZSV) of wheat, a doubled haploid (DH) population Huapei 3 × Yumai 57 (Yumai 57 is superior to Huapei 3 for ZSV), and a linkage map co... In order to understand the genetic basis for Zeleny sedimentation value (ZSV) of wheat, a doubled haploid (DH) population Huapei 3 × Yumai 57 (Yumai 57 is superior to Huapei 3 for ZSV), and a linkage map consisting of 323 marker loci were used to search QTLs for ZSV. This program was based on mixed linear models and allowed simultaneous mapping of additive effect QTLs, epistatic QTLs, and QTL x environment interactions (QEs). The DH population and the parents were evaluated for ZSV in three field trials. Mapping analysis produced a total of 8 QTLs and 2 QEs for ZSV with a single QTL explaining 0.64-14.39% of phenotypic variations. Four additive QTLs, 4 pairs of epistatic QTLs, and two QEs collectively explained 46.11% of the phenotypic variation (PVE). This study provided a precise location of ZSV gene within the Xwmc 93 and GluD1 interval, which was designated as Qzsv-1D. The information obtained in this study should be useful for manipulating the QTLs for ZSV by marker assisted selection (MAS) in wheat breeding programs. 展开更多
关键词 doubled haploid population Zeleny sedimentation value quantitative trait loci (QTls) wheat (Triticum aestivum l.)
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孕妇血清sFt-1l、FGF19和血管内皮功能改变与PE发病风险的关联
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作者 侯祎 唐建芬 +1 位作者 吴蓓娇 朱燕萍 《中国计划生育学杂志》 2025年第6期1415-1419,共5页
目的:探究子痫前期(PE)孕妇血清可溶性Fms样酪氨酸激酶-1(sFlt-1)、成纤维生长因子19(FGF19)水平及血管内皮功能改变与PE发病风险关系。方法:选取2022年7月13日-2024年5月1日本院就诊的PE孕妇60例为观察组,同期产前检查正常妊娠孕妇60... 目的:探究子痫前期(PE)孕妇血清可溶性Fms样酪氨酸激酶-1(sFlt-1)、成纤维生长因子19(FGF19)水平及血管内皮功能改变与PE发病风险关系。方法:选取2022年7月13日-2024年5月1日本院就诊的PE孕妇60例为观察组,同期产前检查正常妊娠孕妇60例为对照组,分析临床资料,比较血清sFlt-1、FGF1水平及血管内皮功能,记录其右侧肱动脉内皮血管扩张(FMD)值,探讨各指标与PE发病关系。结果:观察组收缩压、舒张压、低蛋白血症发生率均高于对照组,25-羟基维生素D325-(OH)D3水平低于对照组,血清sFlt-1(1215.13±78.16 pg/ml)、FGF19(271.41±19.46 ng/L)水平和FMD值(17.13±2.13)%均高于对照组(268.16±25.45 pg/ml、221.12±16.12 ng/L、12.22%±1.58%)(均P<0.05)。行logistic回归分析,孕妇血清sFlt-1、FGF19水平和FMD值升高是PE发生的独立危险因素,且3指标诊断孕妇PE均有较高价值,其受试者工作特征曲线下面积(AUC)值分别为0.881、0.929、0.859。结论:PE孕妇血清sFlt-1、FGF19水平和FMD值均异常升高,且均为PE发生的独立危险因素,并对PE发生均有较高诊断价值,可为临床早期筛查高危人群和实施预防干预提供参考依据。 展开更多
关键词 子痫前期 可溶性Fms样酪氨酸激酶-1 成纤维生长因子19 血管内皮功能 右侧肱动脉内皮血管扩张值 风险因素 诊断价值
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Acid Value Determination and Pre-Esterification of Crude Euphorbia lathyris L. Oil 被引量:1
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作者 Qiuyun Zhang Jinfeng Wu +2 位作者 Peihua Ma Jie Cai Yutao Zhang 《World Journal of Engineering and Technology》 2015年第2期70-75,共6页
There were various problems in the determination of oil acid value of the national standard method, and this paper developed a low cost, simple and effective way to determine the acid value of oil and grease. Furtherm... There were various problems in the determination of oil acid value of the national standard method, and this paper developed a low cost, simple and effective way to determine the acid value of oil and grease. Furthermore, the esterification of high acid Euphorbia lathyris L. oil (ELO) with methanol could be efficiently catalyzed by hydrochloric acid to produce biodiesel, and the influencing factors such as the amount of catalyst, reaction time, reaction temperature and molar ratio of oil to methanol were also studied. Under the optimized conditions with the oil to methanol molar ratio of 1:30 and a reaction temperature of 70℃, 95.8% oil conversion was obtained within 40 min in the presence of only 2.0 wt% of catalyst. Therefore, the low-cost non-edible Euphorbia lathyris L. oil as a raw material had good potential for the synthesis of biodiesel in industry. 展开更多
关键词 Acid value Pre-Esterification EUPHORBIA lathyris l. OIl BIODIESEl
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