Results 21 to 30 of about 1,524,745 (161)

Spatiotemporal Pattern Evolution and Driving Mechanisms of World Botanical Gardens Over Five Centuries

Integrative Conservation, Volume 5, Issue 3, Page 255-267, September 2026.
This study presents a comprehensive review of the 500‐year spatiotemporal evolution of global botanical gardens, identifying three major development stages—initial exploration (1543–1699), steady expansion (1700–1899), and rapid proliferation (1900–2020)—with six distinct sub‐stages. We propose a tripartite driving framework grounded in colonial botany
Shidong Li, Guangzhen Shi, Qingwei Li
wiley   +1 more source

Machine Learning‐Driven Discovery and Experimental Validation of Effective Precursor Additives in Perovskite Solar Cells

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Rationally selection of precursor additives during perovskite crystallization is essential for obtaining high‐quality films and achieving high‐performance perovskite solar cells (PSCs). However, the discovery and optimization of effective additives still rely heavily on time‐consuming and costly trial‐and‐error experiments.
Zhimin Feng, Kuo Wang, Di Huang, Jiangtao Wu, Ruicheng Li, Yi Huang, Bin Fan, Jiaojiao Liang, Xueping Wu, Dan Li, Jaemin Kong, Yang Zhang, Juan Meng   +12 more
wiley   +1 more source

Multi‐Objective Collaborative Process Optimization Based on Deep Learning of Laser In Situ Forging Additive Manufacturing Ti‐6Al‐4V

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Aiming at the problems of insufficient forming quality and poor surface performance in the preparation of Ti‐6Al‐4V alloy by laser powder bed fusion (LPBF), this study proposed a laser in situ forging additive manufacturing (LIF‐AM) technology, which integrates LPBF with femtosecond laser in situ shock forging and realizes defect control and ...
Peng He, Yuming Huang, Wenhe Wang, Chao Wang, Yi Zhang, Min Huang, Shulun Yu, Haocheng Liu, Xinlei Pan, Lu Wang, Liucheng Zhou   +10 more
wiley   +1 more source

Toward a New Generation of AI‐Enabled Wearable Sensors

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Wearable sensors have emerged as important platforms for noninvasive, real‐time, and continuous monitoring of physiological information, with growing applications in personalized healthcare, human‐machine interfaces (HMIs), and robotic empowerment.
Tianqi Yang, Hang Zhu, Zhihui Pan, Jiawei Yang, Yi Liu, Wenqing Yan, Hossam Haick, Yan Wang   +7 more
wiley   +1 more source

Flexible, Robust Transparent Conductive Films With Excellent Electromagnetic Shielding Properties

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Transparent conductive films (TCFs) are indispensable components for next‐generation wearable electronics, intelligent robots, and electromagnetic interference (EMI) shielding devices. However, the fabrication of conventional random metallic mesh suffers from an inherent trade‐off between “randomness and controllability”.
Shanghao Lu, Longxia Yang, Faling Li, Yuping Duan, Changhui Mao, Haicheng Wang   +5 more
wiley   +1 more source

The Formation and Hardening Mechanisms of Multiscale Gradient Structures Tailoring by Explosive Hardening and Annealing in Commercially Pure Titanium

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Gradient structures (GS) introduced by plastic deformation have been shown to effectively enhance the surface properties of metallic materials. However, the GS fabricated by existing methods often suffers from limited hardening depth and limited control over the GS layer, which constrain their engineering applications.
Yansong Guo, Lisha Deng, Zheng Tian, Shuqin Zhang, Gangting Wang, Pengwan Chen   +5 more
wiley   +1 more source

全参数全约束优化对钢筋混凝土框架结构设计的造价分析 [PDF]

, 2008
目前的优化设计一般是将参数简化为一维问题或多维问题,或为全参数优化设计,但约束条件不够充分.针对这些不足,本文建立了更全面的符合工程设计的全参数全约束优化设计模型,利用MATLAB中的fmincon函数进行寻优计算,它可以同各种结构设计软件链接进行参数优化,如本文算例采用了中国建筑设计研究院开发的PKPM软件中已有的内力计算功能.最后,通过算例将各参数对造价影响程度进行分析比较,得出了定性及定量的结论,优化后的结构造价降低显著.与当前的钢筋混凝土框架结构优化设计相比,本文具有较强的实用性 ...
杨建林, 叶伟斌, 王景文
core  

High‐Throughput Development of Advanced Metallic Glasses via Compositionally Graded Thin‐Film Combinatorial Strategy

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Advanced metallic glasses, leveraging their ultrahigh strength, excellent corrosion resistance, superior soft magnetic properties and good biocompatibility, have gradually become indispensable strategic cornerstones in critical fields such as aerospace, electronic information and energy power. This unique combination of properties enables them
Yizhou Liu, Yebei Wang, Jinning Xie, Meichen Jian, Yunhe Gao, Yue Huang, Yan Li, Wenlin Liu, Fu Xu, Juntao Huo, Junqiang Wang, Meng Gao   +11 more
wiley   +1 more source

基于有限元和神经网络方法对220kV盆式绝缘子屏蔽罩结构优化设计

Dianci bileiqi, 2017
针对GIS中盆式绝缘子,提出了一种优化其屏蔽罩结构参数的方法。这种方法首先运用有限元方法对盆式绝缘子建立模型,并进行电场计算,然后以此确定了盆式绝缘子屏蔽罩结构优化目标;在此基础上,引入神经网络算法,利用BP神经网络拟合了屏蔽罩各结构参数与优化目标之间的关系,对屏蔽罩的结构参数进行了优化设计,得到最优结构参数,克服了传统穷举法计算量大、消耗时间长的缺点。实验结果表明,安装优化后的屏蔽罩,可以大大降低盆式绝缘子沿面最大场强,有效改善盆式绝缘子沿面电场不均匀程度。
淡淑恒, 吴娜, 姜腾, 李昊东, 高鹏, 朱锋, 王洪信   +6 more
doaj  

Prospective external validation of ADNEX and RMI for estimating risk of malignancy in adnexal masses in general gynecological settings: Danish multicenter study

Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 256-269, August 2026.
ABSTRACT Objectives The primary aims of this study were to validate externally the diagnostic performance of the Assessment of Different NEoplasias in the adneXa (ADNEX) model for distinguishing between malignant and benign adnexal masses, when used by non‐expert ultrasound examiners in general gynecological settings with a low prevalence of ovarian ...
I. M. Dueholm Hjorth, B. H. Bech, A. Ledger, C. Møller, T. Van den Bosch, O. Mogensen, Collaborators, R. Al Taie, C. Blach Kristensen, M. Lundegaard Iversen, P. Bor, M. Stentebjerg   +11 more
wiley   +1 more source