Results 71 to 80 of about 106,245 (282)

How can children and young people have a voice in urban treescapes?

People and Nature, EarlyView.
Abstract Scientific understanding of climate change has, to date, failed to result in sufficient action. This paper proposes that a deficit model of top‐down learning and dissemination in relation to public engagement with science may be part of the problem, particularly when considering the attitudes, values and empowerment of children and young ...
Simon Carr, Abi Hackett, Kate Pahl, Samyia Ambreen, Khawla Badwan, Elizabeth Curtis, Susannah Gill, Ambika Kapoor, Peter Lawrence, Johan Siebers, Jan White   +10 more
wiley   +1 more source

VSB-30 sounding rocket: history of flight performance [PDF]

Journal of Aerospace Technology and Management, 2011
The VSB-30 vehicle is a two-stage, unguided, rail launched sounding rocket, consisting of two solid propellant motors, payload, with recovery and service system.
Wolfgang Jung, Francisco Carlos Parquet Bizarria, Alexandre Nogueira Barbosa, Sidney Servulo Cunha Yamanaka, Alexandre Garcia, Frank Scheuerpflug   +5 more
doaj  

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

Polymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani, Shengwei Sun, Erik Sundén, Diana Bernin, Per‐Olof Syrén   +4 more
wiley   +1 more source

Study of Recovery System Performance of a Sounding Rocket using Launching Tests [PDF]

فصلنامه علوم و فناوری فضایی, 2014
According to the importance of knowing aerodynamic parameters of parachutes used as recovery system of a sounding rocket, some launching tests were conducted to achieve the acceptable reliability.
F. RasiMarzabadi, R. Meshkani, H. Pouryavi, M. A. Farsi, M. Ebrahimi   +4 more
doaj  

Just be the parent

Journal of Hospital Medicine, EarlyView.
Andrew S. Kern‐Goldberger
wiley   +1 more source

From settler gardens to digital naturalists: human aesthetic preferences and land use changes facilitate the biogeographical expansion of a wild plant–virus interaction

PLANTS, PEOPLE, PLANET, EarlyView.
Anthropogenic facilitation of wild plants based on aesthetic preferences for particular traits can change the biogeography and ecology of natural communities. We use a mixed‐methods socioecological approach to characterize the ways in which humans interact with a common, widely distributed plant and a generalist viral symbiont that induces an ...
Elizabeth M. Lombardi, Jasmine S. Peters, Juan Pablo Jordán, Alison G. Power   +3 more
wiley   +1 more source

Screening Surface Modifications to Benzene to Improve Solubility in Hydroxyl‐Terminated Polybutadiene (HTPB)—A DFT Demonstration

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT The objective of this paper is to demonstrate the advantage of computationally pre‐screening surface‐modifying material candidates, using density functional theory (DFT), to inform experimental synthesis and formulation efforts. This demonstration focuses on improving the solubility of benzene‐based materials in hydroxyl‐terminated ...
Samantha E. Knoth
wiley   +1 more source

Development of Ozone Detector for Ksr-Iii and Preliminary Test Results [PDF]

Journal of Astronomy and Space Sciences, 2000
KARI (Korea Aerospace Research Institute) has measured the ozone density profiles over the Korean Peninsular since the launch of the Korean Sounding Rocket-I (KSR-I) in 1993.
Seung-Hyun Hwang, Jhoon Kim, Jun Kyu Kim, Soo Jin Lee, Jeong Joo Park, Gwang Rae Cho   +5 more
doaj  

Dual Sounding Rocket and C/NOFS Satellite Observations of DC Electric Fields and Plasma Density in the Equatorial E- and F-Region Ionosphere at Sunset. [PDF]

J Geophys Res Space Phys, 2022
Pfaff R, Kudeki E, Freudenreich H, Rowland D, Larsen M, Klenzing J.   +5 more
europepmc   +1 more source

Direct Measurement of Explosive Impulse From Contact to the Ultra‐Near Field

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Measurement of impulse from explosive charges in contact and ultra‐near‐field regimes remains poorly characterised due to the short duration of loading, high strain rates, and the difficulty of obtaining direct momentum‐based measurements.
R. Alford, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source