Results 21 to 30 of about 92,437 (160)
Multimodal Deep Learning‐Assisted Microstructural Evaluation System for Sintered NdFeB Magnets
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The performance of sintered NdFeB magnets, especially coercivity, is critically determined by their complex microstructure. However, a quantitative microstructural evaluation system (MES) is much needed but has long been missing in the community.
Zihao Wang +8 more
wiley +1 more source
Gongye shui chuli, 2008 采用浊度法检测含有微量细小的分子筛颗粒和金属镍颗粒的悬浮液中微量固体颗粒浓度,并对相关因素的影响进行了研究。结果表明:在实验范围内,悬浮液微细颗粒的浓度与悬浮液浊度成线性关系；对微细颗粒悬浮液,采用d32(Sauter直径)作为平均直径比采用中位直径d50更能反应出粒径因素对浊度的影响。
孟庆功 +3 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT The construction of core–shell grains can enhance the coercivity of Nd2Fe14B magnets. However, it is a significant challenge to elucidate the formation of these core–shell grains particularly regarding the spontaneous core–shell structure in Y‐substituted Nd2Fe14B alloys.
Sining Fan +13 more
wiley +1 more source
Dianci bileiqi, 2013 为今后实现自然积污规律研究和防污的差异化,对污秽颗粒等效简化模型、大气总悬浮颗粒物（TSP）的粒径分布函数、绝缘表面污秽主要化学成分对应TSP的粒径分布进行了综述和分析,认为可以污秽颗粒可等效简化为球体,使用空气动力学粒径衡量其粒径;建立TSP粒径分布函数拟合模型;分析认为化学成分Ca2+、SO42-、Cl-、SiO2、Al2O3在TSP中的粒径主要分布在1.810μm,010μm,1.810μm,30-40μm,40μm50μm的范围内,最后对自然积污规律研究和防污的差异化进行了展望。
李恒真 +5 more
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Bimodal grain structure (BGS) demonstrates significant potential in synergistically optimizing the strength and plasticity of magnesium alloys. Acquiring the desired BGS consequently became a critical challenge. This study took the Mg‐9Gd‐1Zn‐0.5Zr (wt%, VZ91K) alloy as its subject. From the perspective of BGS formation mechanisms, it suggests
Shuai Yuan +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT The commercialization of lithium‐sulfur batteries (LSBs) faces dual challenges of sluggish sulfur redox kinetics and lithium polysulfides (LiPSs) shuttling. Herein, we demonstrate a synergistic strategy combining multidimensional structural confinement with d‐band center modulation to simultaneously suppress LiPSs diffusion and catalyze ...
Shibo Rong +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source
Gongye shui chuli采用颗粒粒径选择压与沉降速率选择压相结合的策略，在120 d内成功培养出白色除磷颗粒污泥，颗粒成熟后在反应器内因粒径分化出现分层，按粒径筛分为R1（<2 mm）、R2（2~4 mm）、R3（4~7 mm）、R4（>7 mm）共4组，考察了白色颗粒污泥的除污效能和理化性质。除污效能实验结果表明，在4组粒径范围内，白色颗粒污泥对COD去除效果均较好；4~7 mm的颗粒污泥对TP的去除率最优，达到99.94%；TN的去除率随着粒径的增大而增大，>7 mm的颗粒污泥对TN的去除率最优，达到82.
徐明煌 +3 more
doaj +2 more sources
Shuitu Baochi Xuebao, 2019 为了解驾校不同微环境地表灰尘中Hg的污染情况，使用测汞仪（Hydra II C）测定了芜湖市区26个驾校全粒径和细粒径灰尘样品中Hg的含量，并进行了统计分析。结果表明：芜湖市区驾校地表全粒径和细粒径灰尘中Hg的平均含量分别为49.36，59.97 ng/g，均低于芜湖市土壤背景值，且全粒径与细粒径灰尘中Hg含量存在极显著性差异（P S弯 > 侧方位停车 > 直角转弯 > 坡道定点，细粒径灰尘则表现出：倒车入库 > S弯 > 侧方位停车 > 坡道定点 > 直角转弯，两者呈现出相似的规律，其中倒车入库 ...
王月 +6 more
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Deep skin infections and dense biofilm barriers caused by Propionibacterium acnes (P. acnes) remain significant challenges in recurrent acne vulgaris, exacerbated by the poor stratum corneum penetration of conventional therapies and rising antibiotic resistance.
Bingran Qi +3 more
wiley +1 more source