Results 51 to 60 of about 15,630 (264)

Positive segregation as a function of buoyancy force during steel ingot solidification

Science and Technology of Advanced Materials, 2008
We analyze theoretically and experimentally solute redistribution in the dendritic solidification process and positive segregation during solidification of steel ingots. Positive segregation is mainly caused by liquid flow in the mushy zone.
Zarko Radovic, Nada Jaukovic, Milisav Lalovic and Nebojsa Tadic
doaj  

The dependence of upper ocean gyres on wind and buoyancy forcing

Geoscience Letters, 2022
A series of numerical simulations with different forcing conditions are carried out, to investigate the roles played by buoyancy and wind forcing on the upper ocean gyres, and to contrast the laminar and eddying regimes.
Tongya Liu, Hsien-Wang Ou, Xiaohui Liu, Yu-Kun Qian, Dake Chen   +4 more
doaj   +1 more source

Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment

Advanced Healthcare Materials, EarlyView.
Chitosan‐coated melatonin nanoemulsions (MN) recovered from a sounding rocket mission preserve droplet size and controlled‐release behavior, whereas uncoated nanoemulsions show ageing‐driven droplet growth and increased accessible drug fraction. Simple polymer coatings thus enhance the flight resilience of liquid space medicines under cumulative launch
Modupe Adebowale, Nguyen Van Duc Long, Philip M. Williams, Jens Hauslage, Volker Hessel   +4 more
wiley   +1 more source

Effects of Buoyancy and Surface Roughness on Mechanical Characterization of Shipbuilding Steel by Immersion Instrumented Indentation

Micromachines
To develop the applications of nanoindentation in a liquid environment, a higher requirement has been presented for evaluating measured errors of micromechanical performance, particularly for the immersion indentation.
Xiaoyuan Zhang, Zhongyu Zhao, Zhaoxin Wang, Shuai Li, Chao Sun, Yan Xia, Zhanqiang Liu, Yukui Cai, Bing Wang, Shunbo Wang   +9 more
doaj   +1 more source

Academic Buoyancy in Indonesian Students with Daily Academic Problems: The Roles of Anxiety, Grit, Social Support, and Mediating Self-Efficacy [PDF]

پژوهش‌های کاربردی روانشناختی
This study examined the structural model of academic buoyancy among students experiencing daily academic challenges, focusing on the roles of grit, academic anxiety, social support, and the mediating effect of self-efficacy.
Surahman Surahman, Dedi Kuswandi, Imanuel Hitipeuw, Augusto da Costa   +3 more
doaj   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions

Advanced Materials, EarlyView.
Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng, Yu Xuan Yeoh, Nicholas Yong Wei Foo, Keerthana Radhakrishnan, Guo Zhan Lum   +4 more
wiley   +1 more source

Passive Solar Chimney Ventilation Efficiency in a Single Enclosed Space

Energy Science & Engineering
This study numerically investigates passive solar chimney design with emphasis on the coupled influence of geometric and thermal parameters on air inlet flow.
Jian‐Sheng Huang, Hao‐Hsiang Hsu, Xiang‐Wei Wang, Huei‐Chu Weng, Chung‐Min Hsieh   +4 more
doaj   +1 more source

The Mediating Effect of Academic Buoyancy on the Causal Chains of Online Learning Readiness, Academic Motivation, and Academic Performance

Online Learning
This study aimed to assess students' readiness for online learning, academic motivation, academic buoyancy, academic performance, and these constructs’ direct, indirect, and mediation effects.
GLAIZA MANALOTO
doaj   +1 more source

Lipid Nanoparticle Co‐Delivery of mRNA and a Small Molecule Drug for Oral Cancer Chemoimmunotherapy

Advanced Materials, EarlyView.
Co‐encapsulation of p53 mRNA and the small molecule ciclopirox within a lipid nanoparticle yields an all‐in‐one chemoimmunotherapy for oral squamous cell carcinoma. The platform engages caspase‐driven apoptosis in cancer cells while repolarizing tumor‐associated macrophages, achieving tumor reduction in both p53‐susceptible and p53‐resistant models and
Marshall S. Padilla, Jacqueline J. Li, Qunzhou Zhang, Korey Patwari, Shihong Shi, Hannah M. Yamagata, Ryann A. Joseph, Briyanna N. Hymms, Sridatta V. Teerdhala, Emily Fitzgerald, Ori Z. Chalom, Kushol Gupta, Mohamad‐Gabriel Alameh, Drew Weissman, Anh D. Le, Michael J. Mitchell   +15 more
wiley   +1 more source