Results 141 to 150 of about 2,098,135 (238)
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma +13 more
wiley +1 more source
[Interpretation of National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines in Bone Cancer (Version 2.2026): Updates in diagnosis and treatment strategies for giant cell tumor of bone, osteosarcoma, and Ewing sarcoma]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLi R, He M, Zheng J, Wang Z, Fang B.
europepmc +1 more source
, 2011 一种吡啶和吡啶衍生物加氢制哌啶和哌啶衍生物的催化剂，由主活性组分、助剂和载体三部分组成。主活性组分为过渡金属Pd、Rh、Ni的一种或几种。助剂是Cu、Fe、Co、Ru或/和TiO2等金属或氧化物中一种或几种。载体选用Al2O3、活性炭、ZrO2或SiO2的一种。在固定流床反应器中，在一定的温度和氢气压力和本催化剂的作用下，吡啶和吡啶衍生物可高活性、高选择性地转化为哌啶和哌啶衍生物产品 ...
宁丽丽, 马立新, 丁云杰, 王涛
core
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Cross‐scale assembly of metal (sub) nanoparticles and/or single atoms into millimeter/nanostructured metal monolithic catalysts (Min‐SMCs) is highly appealing for sustainable water cleanup, due to energy‐efficient catalyst recyclability, high infrastructure compatibility, and low metal‐releasing risks.
Jia‐Cheng E. Yang +4 more
wiley +1 more source
[Research progress of electroactivity graphene-based materials in bone repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiKang R, Yuan W, Zhu Y.
europepmc +1 more source
, 2002 传统的观念认为 ,单性动物由于失去了重组机会 ,必然难以适应变化的环境 ,终将绝灭。但是已被发现的近 5 0种单性脊椎动物不仅没有因失去基因的重组和交换而绝灭 ,反而表现出强大的生命力。其有害突变积累和较长的生物演化历程之间的矛盾和在缺乏遗传重组情况下的进化机制是特别引人关注的重大生物学问题。简要论述了单性动物独特的基因组结构、存在历史及其进化途径 (突变、三倍化、异精雌核发育生殖方式和异精效应及生殖方式多样化 )
周莉,桂建芳
core
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
wiley +1 more source
[Interpretation of the Expert Consensus Statement on the Role of Vitamin D in Metabolic Health]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhao Z, Zeng Y.
europepmc +1 more source
, 2016 真核生物的起源是一个根本性的、令人生畏的进化谜题,目前设想的关于"核"起源的流行情景还远谈不上清晰。关于真核生物的起源可谓众说纷纭,有共营模型、自演化模型、病毒性真核生物起源模型和外膜假说,等等。迄今为止,真核演化的动因则鲜有涉及。笔者发现,从原核生物到真核生物,基因组的DNA总量大约增加了3.5个数量级,而这与现代真核生物的DNA压缩比(packing ratio)惊人地一致!这样,仅仅用偶然的吞噬、共生或寄生来解释真核生物的起源,无论如何是难以让人信服的(其实,正是内共生理论将人们引入了歧途 ...
谢平
core
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Bone restoration is often hindered by the spatiotemporal dysregulation of immune and regenerative signals. Conventional bio‐inert implants, providing only passive support, fail to modulate this microenvironment, leading to infections and poor healing.
Zhizhong Sun +8 more
wiley +1 more source