Results 51 to 60 of about 23,320 (232)
Rare Metals, EarlyView.ABSTRACT Organic‐inorganic metal halide perovskite solar cells (PSCs) are promising for photovoltaics due to their excellent optoelectronic properties. However, achieving high efficiency and stability remains challenging, mainly due to defects and energy losses at the electron transport layer (ETL)/perovskite interface.
Jiahui Jin +8 more
wiley +1 more source
Erosion corrosion behavior of AISI 304/316 stainless steel [PDF]
, 2016 304/316不锈钢以其良好的抗腐蚀性能和机械性能而得到广泛应用，尤其是在核电行业。然而，在其应用中存在着冲蚀磨损，腐蚀磨损，应力腐蚀开裂和高温氧化等问题。本文研究了304/316不锈钢两相射流冲蚀磨损行为，在NaCl、HCl和NaOH中的腐蚀磨损行为，在实验室模拟压水堆条件下的应力腐蚀开裂和高温氧化腐蚀行为。 （1）本文通过两相高速射流对304/316不锈钢的冲蚀实验，通过失重法和材料表面形貌、结构和成分微观分析，研究材料冲蚀磨损失效过程以及冲蚀机理分析 ...
周芳
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A High Capacity‐Long Cycling Concurrent Strategy of Ti3C2/MgH2 for Lithium Storage
Rare Metals, EarlyView.ABSTRACT The excellent electrical conductivity and superior cycling stability render Ti3C2 MXene a promising Li ion battery anode. Nevertheless, the practical implementation of Ti3C2 MXene in commercial applications faces significant challenges, predominantly due to the low specific capacity.
Tingting Xu +9 more
wiley +1 more source
Transition metal compounds and alloys: A first-principles investigation [PDF]
, 2015 含过渡金属的化合物与合金在数据存储、光催化和能量存储与转换等领域有重要的应用，主要得益于其特定的电子结构、力学性能等性质。本论文利用基于密度泛函理论的第一性原理计算方法，选取特定的研究体系，系统地探索了过渡金属化合物与合金的电子结构（第三章）、内部原子扩散（第四章）、力学性能（第五章）以及压力与温度对其性质的影响（第六章）。 为了研究缺陷和掺杂对过渡金属氧化物电子结构的调制，我们以SrZrO3为研究对象，首先研究了内部含有有序氧空位和部分无序氧空位体系的电子结构。计算结果表明 ...
郭忠路
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Rare Metals, EarlyView.ABSTRACT Organic‐inorganic hybrid perovskites (OIHPs) with white‐light emission have significant potential in solid‐state lighting and display due to the designable structure and excellent luminescent properties. However, OIHPs are prone to damage during bending due to the brittleness of crystals, which limits their application in the field of flexible
Jinyu Xu +8 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2013 近年来,我国对医学生的培养,主要按照全球医学教育最低基本要求,包括职业价值、态度、行为和伦理,医学科学基础知识,沟通技能,临床技能,群体健康和卫生系统,信息管理,批判性思维和研究等7大领域[1],重视学生的临床实践能力、终身学习能力、创新能力、职业素质的培养[2 ...
周汉建 +7 more
doaj
Rare Metals, EarlyView.ABSTRACT CoP has become a research hotspot for supercapacitor electrode materials because of its considerable theoretical capacitance and metalloid nature, but its commercial application remains hampered by structural instability and sluggish ion kinetics.
Gaoliang Wang +8 more
wiley +1 more source
Theoritical investigations of phase stability, elastic and thermodynamic properties of γ’ phase in Co-X (X:Al, V) based superalloys [PDF]
, 2016 Ni基高温合金是航空航天领域应用最广的高温材料。随着国防科技的发展，新一代的航空航天飞机对发动机涡轮叶片材料的承温能力提出更高的要求。然而Ni基高温合金受熔点的限制，其服役温度很难进一步提高。寻找下一代高温合金成为国内外研究机构的关注焦点。最近，研究者们陆续在Co-Al基和Co-V基合金中发现与Ni3Al类似的γ’析出强化相，由此掀起了新型钴基高温合金的研究热潮。作为新型Co基高温合金中的关键强化相，γ’相的结构稳定性和弹性性质直接决定了Co基高温合金的综合力学性能 ...
邓斌
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Advances in Elemene Nanodelivery Systems: From Material Design to Disease Treatment
Rare Metals, EarlyView.ABSTRACT Elemene (ELE) is a bioactive sesquiterpenoid extracted from traditional Chinese herbs, demonstrating broad‐spectrum antitumor, anti‐inflammatory, and analgesic properties with significant therapeutic potential. However, its clinical utility is constrained by inherent physicochemical limitations, including volatility and hydrophobicity, which ...
Xiao Wang +9 more
wiley +1 more source
Experimental investigation of Phase Equilibria of Partial Ternary systems with Rhenium [PDF]
, 2016 摘要 镍基高温合金具有高强度、优良的耐热性和良好的耐腐蚀性，被广泛应用于航空航天、国防军事、核能等重要领域。迄今为止，镍基高温合金的添加元素达到了十多种，熔点高、原子半径大的元素如Co，Re，Ru，Mo，W等的添加，能起到很好的固溶强化作用，改善高温力学性能。然而高熔点元素的过量添加导致拓扑密排相的产生，降低镍基高温合金的疲劳寿命、塑性、韧性等力学性能。相图作为合金设计的基础，能够很好的指导镍基高温合金的成分设计。然而，由于Re，Ru，W等元素价格贵，熔点高，对其进行实验研究比较困难。截至目前，由Co ...
杨晓锋
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