Results 11 to 20 of about 888 (150)

Mattering and parental presence in systemic therapy using nonviolent resistance: The utilization of imaginary methods

open access: yesFamily Process, Volume 61, Issue 2, Page 507-519, June 2022., 2022
An empowered sense of “self” is crucial for emotional well‐being and positive relationships. Certain family interaction patterns can disrupt the adult's sense of “mattering” to the child, eroding their perceived self‐efficacy. Mattering can be understood as a felt sense of relational agency which is necessary for experiencing one's interactions as ...
Willem Beckers   +2 more
wiley   +1 more source

Comparison of Infiltration Capacity Between Grassland of Different Time Lengths of Abandonment and Sea Buckthorn Land in Inner Mongolia [PDF]

open access: yes, 2023
[Objective] The effect of different vegetation covers on soil infiltration capacity in Inner Mongolia was analyzed in order to provide a theoretical basis for ecological restoration and vegetation allocation of the region.
Cheng Shuai   +5 more
core   +1 more source

Research on the Preparation and Properties of Ln2TiO5 (Ln =Tb、Dy、Tm)Gray Control Rod [PDF]

open access: yes, 2015
灰控制棒作为核反应堆堆芯内重要组件,可以在不改变硼酸浓度的条件下实现每日跟踪负荷运行,使得硼处理系统得到简化,增加了核电安全。基于前期对多种材料进行燃耗分析和核特性评估所获得的几种满足灰棒功能需求的候选元素方案,本论文采用混粉、球磨、冷等静压成型与烧结的工艺制备出了三种核电堆芯灰控制棒用候选材料钛酸铽(Tb2TiO5)、钛酸镝(Dy2TiO5)和钛酸铥(Tm2TiO5)芯块。采用现代材料分析方法对三种混合粉的体在机械球磨过程中的细化、固溶、纳米晶化与非晶化进行了观察、分析与表征 ...
王珂
core  

Enhanced Low‐Frequency Microwave Absorption and Corrosion Resistance of FeSiAl Using Low‐Melting‐Point Glass Phase Coatings

open access: yesRare Metals, EarlyView.
ABSTRACT This study developed a FeSiAl@LMPGP composite material to address the demand for low‐frequency electromagnetic absorption. Through controllable heat treatment, FeSiAl particles and PbO nanoparticles self‐assembled into a high‐density Mott–Schottky heterointerface structure, which exhibited a significant built‐in electric field (BIEF) effect ...
Yuqi Wang   +5 more
wiley   +1 more source

Cu‐Enhanced Medium‐Entropy TiZrCoCrMo Alloys: Balancing Superior Antibacterial and Osteogenic Properties for Orthopedic Implants

open access: yesRare Metals, EarlyView.
ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu   +9 more
wiley   +1 more source

川西高寒山地灌丛草甸土壤抗蚀性研究

open access: yesShuitu Baochi Xuebao, 2020
以康定折多山高寒山地灌丛草甸土壤为研究对象,采用野外调查与室内分析相结合的方法,运用主成分分析法对土壤抗蚀性进行综合评价,以期探讨不同海拔和坡向土壤理化性质及抗蚀性差异。结果表明:(1)淋溶层土壤理化性质的变化剧烈程度高于淀积层土壤,且这种变化不受海拔和坡向的影响,不同坡向间土壤的性质差异主要受气候因素主导;(2)土壤各理化性质指标之间以及土壤理化性质与抗蚀性之间有明显的相关性,其中土壤抗蚀性受团聚体含量及稳定性的影响最大;(3)研究区土壤抗蚀性的大小顺序为3 800 m半阳坡 > 4 200 m半阴坡
吕宸   +6 more
doaj  

工程扰动对黄土抗蚀性与抗冲性的影响

open access: yesShuitu Baochi Xuebao, 2021
为研究工程扰动对黄土抗蚀性和抗冲性的影响,以兰州市城关区北山为研究区,选取1年填方样地(T1a)、5年填方样地(T5a)、7年挖方样地(W7a)和天然草地(C)4个样地采集原状土样,在室内使用干筛—湿筛法测定土壤团聚体相关指标研究土壤抗蚀性,用抗冲槽研究土壤抗冲性,并分析了影响土壤抗蚀性和抗冲性的因素。结果表明,各样地表层(0—10 cm)土壤水稳性团聚体的平均质量直径(MWDw)和>0.25 mm团聚体占比(w(δ>0.25)w)表现为C>W7a>T5a>T1a,土壤团聚体破坏率(PAD)表现为T1a>
王龙   +4 more
doaj  

Coral‐Like Yolk–Shell‐Structured CoNi@Void@C Microspheres for Enhanced Microwave Absorption, Photothermal, Anti‐Corrosion, and Radiation Shielding Properties

open access: yesRare Metals, EarlyView.
ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu   +8 more
wiley   +1 more source

林型和微立地类型及其土壤性质对土壤抗侵蚀能力的影响

open access: yesShuitu Baochi Xuebao, 2020
采用原状土冲刷水槽法和静水崩解法测定土壤抗冲性和抗蚀性,以云冷杉红松林(PA)和椴树红松林(TP)的林隙和郁闭林分为对照,分析了小兴安岭地区2种林型由掘根倒木形成的不同丘和坑微立地类型及其土壤性质对土壤抗冲性和抗蚀性的影响,旨在揭示它们与土壤抗侵蚀能力的关系。结果表明:在2种林型下由掘根倒木形成的丘和坑微立地上,土壤砂粒含量均较高,其抗侵蚀能力均较弱,而对照却相反;2种林型下丘和坑微立地的土壤容重均与土壤抗冲性和抗蚀性呈无显著的负相关(P>0.05),而PA对照的土壤容重与它们均呈不显著正相关(P>0 ...
兰航宇   +5 more
doaj  

Study on Preparation and Corrosion Resistance of HPC [PDF]

open access: yes, 2010
钢筋锈蚀引起混凝土结构过早失效的问题,已成为当今国内外土木工程界的研究热点。特别是沿海及近海地区的混凝土结构,由于遭受海水中氯离子的侵蚀作用,钢筋锈蚀问题尤为严重,由此已造成巨大的社会经济损失。现代高性能混凝土技术为解决这一问题开辟了一条新的途径。高性能混凝土是按耐久性设计的混凝土,由于具有低水胶比,有致密的结构和低渗透性,因此能够抵抗外部侵蚀介质的侵入,从而实现高耐久目标。 本文首先系统地分析了海洋环境条件下氯离子引起混凝土结构中钢筋锈蚀的机理。氯离子通过扩散作用、毛细管作用、渗透作用 ...
宋明辉
core  

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