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Fuzzy BCC-algebra and Fuzzy BCC-ideal
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作者 张小红 《纯粹数学与应用数学》 CSCD 1999年第2期77-78,76,共3页
引入FUZZYBCC-代数、FUZZYBCC-理想的概念,讨论了它们的性质,从而将FUZZYBCK-代数的有关结果推广到BCC-代数上.
关键词 BCC-代数 FUZZY BCC-代数 FUZZY BCC-理想 模糊BCC-代数 模糊BCC-理想
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磁共振3D-IDEAL-IQ技术定量评估2型糖尿病大腿肌肉脂肪浸润 被引量:1
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作者 王昊雷 严俊 +4 位作者 朱红丽 杞天付 高超 黄益龙 何波 《放射学实践》 CSCD 北大核心 2023年第5期604-609,共6页
目的:采用MRI定量技术3D-IDEAL-IQ分析2型糖尿病(T2DM)患者与健康志愿者之间的大腿肌间、肌内脂肪浸润含量差异,并分析其分布情况。方法:搜集确诊为T2DM的男性患者23例,女性患者20例(T2DM组),招募年龄、性别相匹配的健康志愿者40例(对照... 目的:采用MRI定量技术3D-IDEAL-IQ分析2型糖尿病(T2DM)患者与健康志愿者之间的大腿肌间、肌内脂肪浸润含量差异,并分析其分布情况。方法:搜集确诊为T2DM的男性患者23例,女性患者20例(T2DM组),招募年龄、性别相匹配的健康志愿者40例(对照组,男20例,女20例)。对所有受试者进行大腿中段的MRI检查,分别测量皮下脂肪面积和肌肉区域间脂肪面积,通过各肌肉脂肪分数计算肌肉内的脂肪面积及单纯肌肉面积。再根据人体解剖学分区将肌肉分群,分别计算各肌群的肌肉内脂肪面积及纯肌肉面积。结果:T2DM组的皮下脂肪面积(P=0.004)、肌肉区域间的脂肪面积(P<0.001)、肌内脂肪面积(P<0.001)绝对值均大于对照组;T2DM组的肌内脂肪面积相对值较对照组大(P<0.001),单纯肌肉面积相对值较对照组小(P=0.044),并且大腿前外侧群肌肉减少更为显著(P=0.003)。结论:3D-IDEAL-IQ定量技术可以用于评价T2DM患者大腿肌间和肌内脂肪浸润含量和分布;T2DM患者大腿骨骼肌的脂肪及肌肉的比率较健康人群产生变化,脂肪沉积更明显,肌肉含量更少,且前外侧群的肌肉受累较严重。 展开更多
关键词 2型糖尿病 IDEAL-IQ技术 磁共振成像 骨骼肌 脂肪浸润 脂肪定量
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Fuzzy dot ideals and fuzzy dot H-ideals of BCH-algebras 被引量:4
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作者 PENG Jia-yin Key Laboratory of Numerical Simulation of Sichuan Province,Neijiang 641112,China Dept.of Math.,Neijiang Teachers College,Neijiang 641112,China. 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2008年第1期101-106,共6页
The notions of fuzzy dot ideals and fuzzy dot H-ideals in BCH-algebras are introduced, several appropriate examples are provided, and their some properties are investigated. The relations among fuzzy ideal, fuzzy H-id... The notions of fuzzy dot ideals and fuzzy dot H-ideals in BCH-algebras are introduced, several appropriate examples are provided, and their some properties are investigated. The relations among fuzzy ideal, fuzzy H-ideal, fuzzy dot ideal and fuzzy dot H-ideals in BCH- algebras are discussed, several equivalent depictions of fuzzy dot ideal are obtained. How to deal with the homomorphic image and inverse image of fuzzy dot ideals (fuzzy dot H-ideals) are studied. The relations between a fuzzy dot ideal (fuzzy dot H-ideal) in BCH-algebras and a fuzzy dot ideal (fuzzy dot H-ideal) in the product algebra of BCH-algebras are given. 展开更多
关键词 BCH-ALGEBRA fuzzy (dot) ideal fuzzy (dot) H-ideal homomorphism.
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L-fuzzy h-ideals with Operators in Hemirings 被引量:5
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作者 詹建明 DAVVAZ Bijan 《Northeastern Mathematical Journal》 CSCD 2007年第1期1-14,共14页
The notions of M-hemirings and L-fuzzy left h-ideals with operators in M-hemirings are introduced, and some properties are investigated. Given an L-fuzzy left h-ideal with operators, a new L-fuzzy left h-ideal with op... The notions of M-hemirings and L-fuzzy left h-ideals with operators in M-hemirings are introduced, and some properties are investigated. Given an L-fuzzy left h-ideal with operators, a new L-fuzzy left h-ideal with operators is established. Using a collection of left M-h-ideals, L-fuzzy left h-ideals with operators are constructed. Moreover, the concept of M-Notherian M-hemiring is introduced and its characterization is given. 展开更多
关键词 M-hemiring M-L-fuzzy left h-ideal Left M-h-ideal M-Notherian
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3D LAVA-FLEX和2D T_(1)WI-IDEAL序列在鼻咽癌MRI增强扫描中的应用对比
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作者 彭莉 陈韵彬 +3 位作者 郑德春 钟婧 肖友平 林怡菲 《医学理论与实践》 2022年第8期1280-1283,1268,共5页
目的:通过对比鼻咽癌患者3D LAVA-FLEX和2D T1WI-IDEAL MRI增强扫描序列的图像质量、对病灶的显示能力以及序列的诊断价值,评估3D LAVA-FLEX序列在分期扫描中的应用价值。方法:2020年7—11月连续对30例就诊于我院的鼻咽癌初诊患者进行... 目的:通过对比鼻咽癌患者3D LAVA-FLEX和2D T1WI-IDEAL MRI增强扫描序列的图像质量、对病灶的显示能力以及序列的诊断价值,评估3D LAVA-FLEX序列在分期扫描中的应用价值。方法:2020年7—11月连续对30例就诊于我院的鼻咽癌初诊患者进行磁共振检查。鼻咽颈部平扫后,注射0.2mmol/kg的钆喷酸葡胺,进行2D T_(1)WI-IDEAL序列和3D LAVA-FLEX序列增强扫描。比较两个增强序列的总体图像质量等主客观指标。结果:2D T_(1)WI-IDEAL与3D LAVA-FLEX总体图像质量评分没有统计学差异(P=0.366),LAVA-FLEX(3.1分)的伪影少于T_(1)WI-IDEAL(2.57分)(P<0.001),LAVA-FLEX(3分)的肿瘤显示效果优于T_(1)WI-IDEAL(2分)(P<0.001),LAVA-FLEX肌肉脂肪对比度、原发灶脂肪对比度及转移淋巴结脂肪对比度(0.69、0.83、0.81)均优于T_(1)WI-IDEAL(0.42、0.62、0.58)(P<0.001),两序列的信噪比(SNR)肿瘤及SNR肌肉差异均没有统计学意义(P=0.926,P=0.141),但是对于两个序列脂肪抑制均匀度的评价,主观和客观评价都表明T_(1)WI-IDEAL优于LAVA-FLEX(P<0.001)。结论:3D LAVA-FLEX序列可以作为鼻咽癌分期磁共振扫描的首选增强序列。 展开更多
关键词 鼻咽癌 3.0T 磁共振 增强 3D LAVA-FLEX 2D T_(1)WI-ideal
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Bipolar Valued Fuzzy α-Ideal of BF-Algebra 被引量:1
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作者 Shanmugavelu Sabarinathan David C. Kumar Prakasam Muralikrishna 《Circuits and Systems》 2016年第10期3054-3062,共10页
In the mathematical applications, ideal concepts are involved. They have been studied and analyzed in various ways. Already ideal and α-ideal concepts were discussed in BF-algebras. In this paper the idea of bipolar ... In the mathematical applications, ideal concepts are involved. They have been studied and analyzed in various ways. Already ideal and α-ideal concepts were discussed in BF-algebras. In this paper the idea of bipolar valued fuzzy α-ideal of BF algebra is proposed. The relationship between bipolar valued fuzzy ideal and bipolar valued fuzzy α-ideal is studied. Some interesting results are also discussed. 展开更多
关键词 BF-Algebra IDEAL Bipolar Valued Fuzzy Ideal Bipolar Valued Fuzzy α-ideal
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Characterizations of Hemirings by the Properties of Their <i>k</i>-Ideals
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作者 Muhammad Shabir Rukhshanda Anjum 《Applied Mathematics》 2013年第5期753-768,共16页
In this paper we characterize those hemirings for which each k-ideal is idempotent. We also characterize those hemirings for which each fuzzy k-ideal is idempotent. The space of prime k-ideals (fuzzy k-prime k-ideals)... In this paper we characterize those hemirings for which each k-ideal is idempotent. We also characterize those hemirings for which each fuzzy k-ideal is idempotent. The space of prime k-ideals (fuzzy k-prime k-ideals) is topologized. 展开更多
关键词 Hemiring Fuzzy k-ideal IDEMPOTENT k-ideals Prime IDEALS SEMIPRIME IDEALS
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Confinement Effect and Diameter Effect on the Non-ideal Detonation Parameters of Small Charge
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作者 徐新春 焦清介 +1 位作者 金兆鑫 杨贵丽 《Journal of Beijing Institute of Technology》 EI CAS 2010年第4期399-404,共6页
An expanding model of the confinement of non-ideal detonation of small charge is established on the basis of the nozzle theory.Making use of the expanding model,the analytic relationship of small charge detonation vel... An expanding model of the confinement of non-ideal detonation of small charge is established on the basis of the nozzle theory.Making use of the expanding model,the analytic relationship of small charge detonation velocity and the semi-empirical relationship of detonation pressure that both change with charge diameter and confinement condition are established.The detonation velocity and pressure of small charges are calculated and experimentally verified,and the detonation velocity deviation is less than 7% while the detonation pressure deviation is less than 9%. 展开更多
关键词 explosion mechanics non-ideal detonation small charge diameter effect the nozzle theory
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Pseudoelastic effect in autoparametric non-ideal vibrating system with SMA spring
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作者 Danuta Sado Marek Pietrzakowski Krzysztof Gajos 《Theoretical & Applied Mechanics Letters》 CAS 2012年第4期69-74,共6页
In this paper a three degrees of freedom autoparametric system with limited power supply is investigated numerically. The system consists of the body, which is hung on a spring and a damper, and two pendulums connecte... In this paper a three degrees of freedom autoparametric system with limited power supply is investigated numerically. The system consists of the body, which is hung on a spring and a damper, and two pendulums connected by shape memory alloy (SMA) spring. Shape memory alloys have ability to change their material properties with temperature. A polynomial constitutive model is assumed to describe the behavior of the SMA spring. The non-ideal source of power adds one degree of freedom, so the system has four degrees of freedom. The equations of motion have been solved numerically and pseudoelastic effects associated with the martensitic phase transformation are studied. It is shown that in this type system one mode of vibrations might excite or damp another mode, and that except different kinds of periodic vibrations there may also appear chaotic vibrations. For the identification of the responses of the system's various techniques, including chaos techniques such as bifurcation diagrams and time histories, power spectral densities, Poincare maps and exponents of Lyapunov may be used. 展开更多
关键词 autoparametric vibrations non-ideal system shape memory alloy CHAOS
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Fuzzy Foldness of P-Ideals in BCI-Algebras
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作者 Mahasin A. Ahmed 《Journal of Applied Mathematics and Physics》 2020年第10期2129-2141,共13页
This paper aims to introduce new notions of (fuzzy) n-fold P-ideals and (fuzzy) n-fold weak P-ideals in BCI-algebras, and investigate several properties of the foldness theory of P-ideals in BCI-algebras. Finally, we ... This paper aims to introduce new notions of (fuzzy) n-fold P-ideals and (fuzzy) n-fold weak P-ideals in BCI-algebras, and investigate several properties of the foldness theory of P-ideals in BCI-algebras. Finally, we construct a computer-program for studying the foldness theory of P-ideals in BCI-algebras. 展开更多
关键词 BCK/BCI Algebras P-ideals of BCI-Algebras Fuzzy P-ideal of BCI-Algebra Fuzzypoint (Fuzzy) n-Fold P-ideals (Fuzzy) n-Fold Weak P-ideals
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Ordered Semigroups Characterized by Their Intuitionistic Fuzzy Generalized Bi-ideals
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作者 Muhammad Shabir Asghar Khan 《模糊系统与数学》 CSCD 北大核心 2009年第5期56-64,共9页
In this paper,we define intuitionistic fuzzy generalized bi-ideals in ordered semigroups and characterize regular and left weakly regular ordered semigroups in terms of intuitionistic fuzzy generalized bi-ideals.
关键词 模糊数学 模糊系统 系统论 理论
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Body-focused Anxiety in Women: Associations with Internalization of the Thin-ideal, Dieting Frequency, Body Mass Index and Media Effects
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作者 Aileen Pidgeon Rachel A. Harker 《Open Journal of Medical Psychology》 2013年第4期17-24,共8页
Exposure to media that portrays thin women as ideal and attractive can lead to women internalizing the thin ideal, which results in incorporating societal standards of thinness into belief systems. Internalization of ... Exposure to media that portrays thin women as ideal and attractive can lead to women internalizing the thin ideal, which results in incorporating societal standards of thinness into belief systems. Internalization of the thin-ideal is associated with numerous detrimental effects on women, including decreased levels of self-esteem and increased levels of body-focused anxiety, negative emotions and disordered eating. The present study utilized a sample of women (N = 208) aged between 18 and 67 years (M = 29.44, SD = 13.08) to examine the relationship between internalization of the thin- ideal, body-focused anxiety, body mass index (BMI), and dieting frequency. Correlational, regression and mediation analyses conducted on the data showed that internalization of the thin-ideal, BMI and dieting frequency significantly contributed to body-focused anxiety in women. In addition, body-focused anxiety fully mediated the relationship between internalization of the thin-ideal and dieting frequency among women. BMI did not moderate the relationship between internalization of the thin-ideal and body-focused, indicating that women who internalize the thin-ideal are less vulnerable to dieting unless experiencing body-focused anxiety. The results of the current study enhance our understanding of the relationship between internalization of the thin-ideal, body-focused anxiety, BMI, and dieting frequency among women. Clinical implications will be discussed. 展开更多
关键词 Body-focused ANXIETY INTERNALIZATION of the Thin-ideal BMI DIETING
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Investigation of Shock Waves in Non-Ideal Gas under the Action of Magnetic Field
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作者 Kanti Pandey Praveen Prakash Pathak 《Advances in Pure Mathematics》 2017年第10期583-596,共14页
In present paper, certain aspect of shock wave in non-ideal gas, when magnetic field is orthogonal to the trajectories of the gas particles and electrical conductivity is taken to be infinite, is investigated. Conside... In present paper, certain aspect of shock wave in non-ideal gas, when magnetic field is orthogonal to the trajectories of the gas particles and electrical conductivity is taken to be infinite, is investigated. Considering one-dimensional unsteady non-planer motion, basic equations, its general solution and formation of shock-wave, conservation laws and jumps conditions, variation of area of non-uniform cross section and analytical solution of strong non planer shock is obtained. 展开更多
关键词 SHOCK-WAVES NON-ideal GASES Magnetic Field
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基于理想过程模型的探究学习评价——探究学习评价的新思路 被引量:2
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作者 杨开城 窦玲玉 《远程教育杂志》 CSSCI 北大核心 2024年第2期38-44,共7页
在教育情境下,探究学习被定义为旨在达到特定高阶能力目标的学习过程。因此,其评价应侧重于过程取向,而非结果取向。为刻画理想的探究学习过程并保留情境信息,特别是学习目标信息,需对特定的探究学习设计进行理想过程建模,所生成的理想... 在教育情境下,探究学习被定义为旨在达到特定高阶能力目标的学习过程。因此,其评价应侧重于过程取向,而非结果取向。为刻画理想的探究学习过程并保留情境信息,特别是学习目标信息,需对特定的探究学习设计进行理想过程建模,所生成的理想过程模型可作为评价实际发生的探究学习的标尺。探究学习的理想过程建模包括以下五个步骤:(1)完成探究学习的详案设计;(2)绘制探究学习活动所蕴含的知识建模图;(3)具体描述探究学习的整体过程;(4)将探究学习整个过程划分为多个环节,并绘制探究环节图;(5)将所有环节图按照探究学习的一般过程连接成一个整体,形成理想过程模型。对实际发生的探究学习也应进行上述操作,并在完成预处理后,生成探究学习的真实过程模型。通过比较真实过程模型与理想过程模型,找出差异点,依此可以评估实际发生的探究学习。这种评价方法不仅有助于了解探究学习的质量,还能为探究学习设计的改进提供反馈,更为重要的是,它可以使探究学习成为日常教学的一部分。 展开更多
关键词 探究学习 理想过程建模 理想过程模型 探究学习评价
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Subalgebra and LI-Ideal of Lattice Implication Algebras
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作者 吴明慧 徐扬 刘煦 《Journal of Southwest Jiaotong University(English Edition)》 2010年第3期250-253,共4页
First, we reviewed the definitions of lattice implication algebras, lattice implication subalgebras, and LI-ideals, and provided an equivalent definition of LI-ideal. Then we investigated some properties of lattice im... First, we reviewed the definitions of lattice implication algebras, lattice implication subalgebras, and LI-ideals, and provided an equivalent definition of LI-ideal. Then we investigated some properties of lattice implication subalgebra and U-ideal, and found the least lattice implication subalgebra. Finally, the relation between lattice implication subalgebra and LI-ideal is presented. It is proved that no LI-ideals are non-trivial lattice implication subalgebras. 展开更多
关键词 Lattice implication subalgebra Lattice H implication algebra Lukasiewicz implication algebra LI-ideal
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Weighted (<i>λ</i>, <i>μ</i>)-Ideal Statistical Convergence and Strongly Weighted (<i>λ</i>, <i>μ</i>)-Ideal Convergence of Double Sequences of Fuzzy Numbers
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作者 Xue Feng 《Applied Mathematics》 2022年第1期27-36,共10页
The paper aims to investigate different types of weighted ideal statistical convergence and strongly weighted ideal convergence of double sequences of fuzzy numbers. Relations connecting ideal statistical convergence ... The paper aims to investigate different types of weighted ideal statistical convergence and strongly weighted ideal convergence of double sequences of fuzzy numbers. Relations connecting ideal statistical convergence and strongly ideal convergence have been investigated in the environment of the newly defined classes of double sequences of fuzzy numbers. At the same time, we have examined relevant inclusion relations concerning weighted (<i>λ</i>, <i>μ</i>)-ideal statistical convergence and strongly weighted (<i>λ</i>, <i>μ</i>)-ideal convergence of double sequences of fuzzy numbers. Also, some properties of these new sequence spaces are investigated. 展开更多
关键词 Fuzzy Numbers Ideal Statistical Convergence Double Sequences of Fuzzy Numbers WEIGHTED
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计及经济性和低碳性的光储充一体化电站多目标优化配置 被引量:1
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作者 程杉 刘延光 +2 位作者 刘炜炜 王灿 李振兴 《电力工程技术》 北大核心 2024年第4期147-155,共9页
为充分挖掘光储充一体化电站经济效益及碳减排效益,实现站内组成单元合理配置,文中提出一种计及经济性和低碳性的光储充一体化电站多目标优化配置方法。首先,根据充电站内各模块的功能及需求,探究光储充电站中碳排放的来源,建立站内各... 为充分挖掘光储充一体化电站经济效益及碳减排效益,实现站内组成单元合理配置,文中提出一种计及经济性和低碳性的光储充一体化电站多目标优化配置方法。首先,根据充电站内各模块的功能及需求,探究光储充电站中碳排放的来源,建立站内各模块成本、碳排放的数学模型。然后,以系统年投资运行成本和碳排放量最小为目标,使用基于三黑洞捕获策略的多目标粒子群算法,对不同负荷场景下电站各组成模块进行优化配置,得出各场景下电站各组成模块的最优配置方案。对比结果表明,文中所提方法可有效降低规划运行时的成本和碳排放量,提高电站经济及环境效益。最后,采用逼近理想解排序法得出最优场景下的折衷优化方案,可为当前光储充一体化电站的投资建设提供参考。 展开更多
关键词 容量优化配置 车网互动 有序充放电 多目标优化 碳排放 逼近理想解排序法
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Frequency-Concentration Dependence of Optical Activity of a Non-Ideal 1D-Superlattice
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作者 Vladimir V. Rumyantsev Stanislav A Fedorov 《Journal of Modern Physics》 2011年第12期1574-1578,共5页
In the present work the widths of layers constituting the non-ideal superlattice are much bigger then the characteristic scales of space dispersion. In such a case the contribution of individual layers to gyrotropy ca... In the present work the widths of layers constituting the non-ideal superlattice are much bigger then the characteristic scales of space dispersion. In such a case the contribution of individual layers to gyrotropy can be regarded as independed. Thus the corresponding optical quantities can be expressed through the layers’ gyrotropic characteristics. This approach is applied to calculate the specific rotation angle of plane of polarization of light propagating through a nonideal 1D-superlattice, which varies in composition as well as in layers’ width. We carry out numerical calculation of the frequency dispersion of optical activity of a non-ideal superlattice, which includes impurity layers with point defects. 展开更多
关键词 Light PROPAGATION NON-ideal 1D-Superlattice Optical Activity EXCITON REGION of the SPECTRUM
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中华优秀传统文化道德人格境界论及其对大学生人格修养的启示 被引量:1
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作者 高琼 周远 惠彦渊 《现代教育科学》 2024年第3期76-81,共6页
中华优秀传统文化道德人格境界论以天人合一的天道观为基础,以道德修养的层次和境界为依据,将人格分为君子人格和小人人格,并以君子、贤人、圣人为理想的人格境界,主张培育人的道德主体性,树立居仁求义、自强不息、厚德载物、胸怀天下... 中华优秀传统文化道德人格境界论以天人合一的天道观为基础,以道德修养的层次和境界为依据,将人格分为君子人格和小人人格,并以君子、贤人、圣人为理想的人格境界,主张培育人的道德主体性,树立居仁求义、自强不息、厚德载物、胸怀天下的人格境界和担当精神。分析中华优秀传统文化道德人格境界论对新时代大学生人格意识的激发、健全人格的养成、道德自信和担当精神的确立、人格修养的提升以及和谐人际关系的建立均具有重要的理论价值和现实意义。 展开更多
关键词 道德人格境界 理想人格 君子 大学生 人格修养
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关于我国林木育种向智能分子设计育种发展的思考 被引量:2
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作者 康向阳 《北京林业大学学报》 CAS CSCD 北大核心 2024年第3期1-7,共7页
“作物育种4.0”的提出,为我国林木遗传育种指明了向智能分子设计育种发展的前进方向。本文提出了理想品种的概念及其智能设计实现条件,简要综述了我国林木遗传育种研究历史以及存在的问题,并提出了推动我国林木智能分子设计育种的发展... “作物育种4.0”的提出,为我国林木遗传育种指明了向智能分子设计育种发展的前进方向。本文提出了理想品种的概念及其智能设计实现条件,简要综述了我国林木遗传育种研究历史以及存在的问题,并提出了推动我国林木智能分子设计育种的发展对策等。林木遗传育种应该瞄准国家林业重大需求,有组织地选择重要树种系统布局,在推动树种高世代遗传改良及其利用的同时,准备系谱关系清晰的育种资源群体,做到等位变异有迹可循;解析重要性状遗传变异规律及其调控网络,实现基因调控有据可查;建立高效的多组学大数据整合分析以及育种群体构建、亲本选配和后代选择等分子设计育种技术方法体系,保证智能育种有“法”可依等。逐步解决我国林木遗传育种中存在的问题,为实施林木智能设计育种创造理想条件。在每一育种世代品种向理想品种选育的推进过程中,尽可能将智能分子设计育种的最新理论和技术成果应用于育种实践,选育出高产、优质、高抗的当前世代理想品种,满足国家林业发展的现实需要。 展开更多
关键词 林木育种 理想品种 常规育种 智能分子设计育种 育种发展对策
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