Results 31 to 40 of about 17,777 (118)

The Hour that Never Comes and the Time that Remains

open access: yesJournal of Analytical Psychology, Volume 71, Issue 1, Page 123-143, February 2026.
Abstract This essay proposes a symbolic and clinical investigation of psychic temporality through two archetypal experiences of time: the hour that never comes and the time that remains. Drawing on analytical psychology, trauma theory and aesthetic philosophy, text explores how certain forms of suffering resist chronological resolution and persist as ...
Daniel Françoli Yago
wiley   +1 more source

ZnO的相变和热力学性质的第一性原理研究

open access: yes四川大学学报. 自然科学版, 2011
利用基于密度泛函理论的第一性原理计算方法研究了ZnO的相变和热力学性质.我们发现ZnO由wurtzite结构到NaCl结构的相变压在10.9 GPa左右,和实验值以及其他的理论计算值符合的很好.我们还成功地研究了ZnO的热力学性质,其中包括ZnO的热容和德拜温度.
倪玉凤, 周晓林, 逯来玉, 刘科
doaj  

In Situ Fabrication of Sulfate‐Grafted Mo‐Doped NiOOH for Electrocatalytic Methanol Oxidation Coupled With Hydrogen Production at Industrial‐Level Current Density

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Developing efficient and sustainable energy conversion technologies is crucial for addressing the global energy and environmental challenges. As a promising clean energy conversion strategy, the electrocatalytic methanol oxidation coupled with cathodic hydrogen production provides a pivotal path to solve the above problems.
Tao Chen   +4 more
wiley   +1 more source

絮凝-Fenton试剂法对1,2,4-酸氧体废水预处理的实验研究

open access: yesGongye shui chuli, 2008
采用二次絮凝-Fenton试剂法对1,2,4-酸氧体废水进行预处理,确定了最佳处理条件。两次絮凝均投加CaO和FeSO4.7H2O作为絮凝剂,第一次絮凝时,絮凝过程中出现浆状体,直接抽滤。第二次絮凝,絮凝沉降明显。通过两次絮凝COD从原水的17 511 mg/L降至4 020.9 mg/L。Fenton试剂处理时,利用二次絮凝出水和原水调节pH,处理后COD降至605.2 mg/L。使后续处理具有较大的可行性。
谭世语, 黄映如
doaj  

Dynamic Phase Transformation Mechanisms in Ti48Al5Nb2Cr0.6Re0.1C Alloy With Heterogeneous Layered Microstructure

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Introducing solid‐state phase transformations into the design of heterogeneous structures is considered an effective strategy for simultaneously optimizing both microstructure and mechanical properties. This study investigates the thermodynamic and kinetic mechanisms of the γ → α transformation in Ti48Al5Nb2Cr0.6Re0.1C alloy under different ...
Ke‐Xuan Li   +6 more
wiley   +1 more source

分子基磁体Mn[N(CN)2]2电子结构的第一性原理研究

open access: yes四川大学学报. 自然科学版, 2011
采用基于密度泛函理论(DFT)的第一性原理全电子势线性缀加平面波方法(FP-LAPW),对Mn[N(CN)2]2的电子结构进行了理论研究,结果表明Mn[N(CN)2]2具有稳定的铁磁基态,是一种直接带隙的磁性半导体材料,带隙宽度为0.85 eV,分子中Mn的3d轨道对整个分子态密度的贡献最大,分子磁矩主要来源于Mn离子.
黄海铭, 罗时军, 李文胜
doaj  

Constructing Serrated Boride Composite Layer for Enhancing Wear Resistance of Ti6Al4V Alloy

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Appropriate configuration combined with strong interface bonding is the essential requirement for developing high wear‐resistant coatings. Herein, based on the powder‐pack boriding process, the properties of Ti6Al4V alloy are effectively improved by constructing a serrate tribological boride composite layer.
Ying Wu   +9 more
wiley   +1 more source

高压下金属钼弹性性质的第一性原理计算

open access: yes四川大学学报. 自然科学版, 2013
本文利用基于密度泛函理论框架下的广义梯度近似(GGA)方法,研究了过渡金属钼的晶体结构和弹性性质.零压下,计算所得的晶格常数(a=3.153)与实验值非常接近.与实验值比较,采用GGA+U(U=1.5,2,2.5eV)的方法,计算得到的晶格常数a不如GGA的计算结果.此外,我们利用广义梯度近似(GGA)方法计算了钼的弹性性质,得到零压下钼的弹性常数分别为C11=449.7GPa,C12=169.7GPa,C44=96.2GPa,与实验值符合得很好 ...
孟睿英, 徐平胜, 吕明邦, 傅敏
doaj  

In Situ Uniform Lithium Enrichment for Dense, High‐Performance LLZO Solid Electrolytes

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT A major challenge in garnet‐type Li7La3Zr2O12 (LLZO) system all‐solid‐state electrolytes is the high porosity that typically remains after sintering, which compromises ionic conductivity and degrades battery cycling performance. To address this, we propose an innovative strategy to achieve uniform lithium enrichment on the surface of ...
Yi‐Yang Xiao   +8 more
wiley   +1 more source

N掺杂p型ZnSe电子结构的第一性原理计算

open access: yes四川大学学报. 自然科学版, 2009
采用基于密度泛函理论(DFT)的第一性原理全电子势线性缀加平面波方法(FPLAPW),对 N 掺杂 ZnSe 晶体的几何结构进行了优化,从理论上给出了 N 掺杂 ZnSe 晶体结构参数并对中心 Zn 原子近邻和次近邻位 N 掺杂前后总态密度及分态密度进行了对比分析,讨论了不同 Se 位 N 掺杂对 ZnSe 晶体性能的影响,在次近邻掺杂中,晶体表现出更为优良的半导体性质.
李宗宝, 王霞
doaj  

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