Results 51 to 60 of about 24,424 (315)

The Ionization Structure of Planetary Nebulae [PDF]

Symposium - International Astronomical Union, 1993
Ground-based and satellite spectrophotometric observations of emission-line intensities over the spectral range 1400–7200 Å have been made in 5 or more positions in a total of 9 planetary nebulae.
openaire   +1 more source

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

Advanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre, Margherita Bernardeschi, Matteo Battaglini, Gianni Ciofani   +3 more
wiley   +1 more source

Phase-Space Structure for Narrow Planetary Rings

, 2004
17 pages, 6 low-resolution ps figures (some in colour)
Benet, Luis, Merlo, Olivier
openaire   +3 more sources

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

Advanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song, Peiqi Niu, Wenxi Gu, Chun Lam Clement Chan, Jiuhong Yi, Xu Liu, Peng Tan, Chon In Haydn Cheong, Qingwen Guan, Dan Fang, Bingpu Zhou, Zi Liang Wu, Ji Liu, Yan Yan Shery Huang, Iek Man Lei   +14 more
wiley   +1 more source

Design and Motion Analysis of a Planetary Gear Type Power Coupling Device Used in HEV

Jixie chuandong, 2017
Based on the power system parameters of a certain type Hybrid Electric Vehicle（ HEV）,a planetary gear type power coupling device is designed for power transmission structure which can meet the requirement of power.
Gao Aiyun, Tian Songwen
doaj  

Improving Porosity Calculation Methods and Proposing a New Model Universally Applicable to Large- and Medium-sized Planetary Objects

The Astrophysical Journal
Our work was aimed at the improvement of two main already existing methods of porosity calculation on a planetary scale in order to expand these methods to be applicable to exoplanetary interiors. In addition to implementing some improvements in the used
Imre Kisvárdai, Ákos Kereszturi
doaj   +1 more source

Parametric Design and Motion Simulation Analysis of Non-circular Gear Planetary Gear Train

Jixie chuandong, 2021
Non-circular gear planetary gear train is the core component of non-circular gear hydraulic motor， and its pitch curve design is the key to the overall structure design.
Yongping Liu, Xingwen Fu, Yongqiao Wei, Dawei Li   +3 more
doaj  

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

The radial structure of planetary bodies formed by the streaming instability

, 2021
R.G. Visser, Joanna Drążkowska, C. Dominik   +2 more
openalex   +1 more source

Building like a Coral—Parallelized, Multiscale Biofabrication

Advanced Materials, EarlyView.
Corals build stiff, strong, and inherently circular skeletal materials under resource‐ and energy‐limited conditions—offering blueprints for transformative materials. We synthesize the current understanding of coral biomineralization and reframe coral growth as a multiscale, parallelized biofabrication process.
Asma Rehman, Marta Peña Fernández, Kristina K. Beck, Gavin L. Foster, Sebastian J. Hennige, Uwe Wolfram   +5 more
wiley   +1 more source