Results 61 to 70 of about 14,006 (280)

A comparison with the three-zone model for flow boiling heat transfer in small diameter tubes [PDF]

, 2006
Flow boiling heat transfer experimental results, obtained in two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a as the working fluid, indicate that the local heat transfer coefficient increases with heat flux and is ...
Karayiannis, TG, Kenning, DBR, Shiferaw, D   +2 more
core   +1 more source

Temperature and Farm Labor in Nigeria

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We estimate the impact of temperature shocks on the composition of farm labor in rural Nigeria using a nationally representative household panel survey. Leveraging plausibly exogenous year‐to‐year variation in growing season temperatures, we find that warmer temperatures significantly alter farm labor composition, prompting a substantial shift
Andu Berha
wiley   +1 more source

Tetraaza[7]–[15]helicenes Synthesized by Two‐Step Strategy: Length‐Controlled Chiral π‐Systems Exhibiting Amplified Circularly Polarized Luminescence

Angewandte Chemie, EarlyView.
A modular two‐step strategy provides tetraaza[n]helicenes (n = 7–15) as a homologous series with tunable photophysical and chiroptical properties. Extension beyond n = 11 induces pronounced through‐space π–π interactions, narrowing the energy gap and amplifying circularly polarized luminescence.
Takashi Otani, Yuchen Wu, Kohei Ueda, Yuki Ikeda, Yuna Tada, Natsuna Kinoshita, Takanori Shibata   +6 more
wiley   +2 more sources

Pre-Engagement as Method: An EmbodiMap VR Experience to Explore Lived Experience of People from South Sudanese Refugee Background

International Journal of Qualitative Methods, 2022
This paper discusses the use of pre-engagement as a method to introduce EmbodiMap, a Virtual Reality (VR) tool to a group of South Sudanese refugees in Sydney, Australia.
Lydia Gitau, Gail Kenning, Sophie Burgess, Jill Bennett, Volker Kuchelmeister, Melissa Neidorf, Natasha Ginnivan   +6 more
doaj   +1 more source

Extraction of the Spin Glass Correlation Length

, 1998
The peak of the spin glass relaxation rate, S(t)=d{-M_{TRM}(t,t_w)}/H/{d ln t}, is directly related to the typical value of the free energy barrier which can be explored over experimental time scales. A change in magnetic field H generates an energy E_z={
C. Djurberg, D. Chu, D. S. Fisher, D. S. Fisher, E. Marinari, E. Vincent, E. Vincent, G. G. Kenning, G. G. Wood, G. J. M. Koper, G. Parisi, G. Parisi, G. Parisi, H. Rieger, H. Rieger, J. Hammann, J. Hammann, J. Kisker, J. Mattsson, J. R. de Almeida, J.-O. Andersson, K. Jonason, M. Lederman, M. Ocio, P. Granberg, P. Granberg, P. Nordblad, P. Sibani, P. Sibani, R. Orbach, Y. G. Joh, Y. G. Joh, Y. G. Joh   +32 more
core   +1 more source

The Role of Certifications in Improving Household Food Security Among Peruvian Farmers

Agribusiness, EarlyView.
ABSTRACT Achieving global food security requires sustainable transformations in agri‐food systems. Voluntary Sustainability Standards (VSS) such as Organic and Fairtrade aim to internalize certain social and environmental costs while promoting more equitable value distribution, improved market access, and sustainable production practices.
Lisa‐Marie Schulte, Awudu Abdulai
wiley   +1 more source

Host‐Guest Doping Enables Room Temperature Phosphorescence from Triarylboranes

Angewandte Chemie, EarlyView.
While pure triarylboranes show RTP in annealed PMMA films, they do not in crystalline form, contrary to our previous report. However, crystalline host‐guest triarylborane systems show persistent afterglow up to 8 s even at 1 ppb guest loading. Computations identify triplet‐triplet energy transfer as the mechanism governing this efficient RTP.
Zhu Wu, Katrina Bergmann, Todd B. Marder, Bin Liu, Zachary M. Hudson   +4 more
wiley   +2 more sources

Toward understanding the dimensional crossover of canonical spin-glass thin films

Frontiers in Physics
Spin-glass thin films exhibit many features different from the bulk. The freezing temperatures of spin-glass films are suppressed for reduced thickness and follow the Kenning relation. The dynamics are altered near the vacuum interface.
Qiang Zhai, Raymond L. Orbach
doaj   +1 more source

Comparative morphology of ultimate and walking legs in the centipede Lithobius forficatus (Myriapoda) with functional implications

Zoological Letters, 2019
Background In the context of evolutionary arthopodial transformations, centipede ultimate legs exhibit a plethora of morphological modifications and behavioral adaptations.
Matthes Kenning, Vanessa Schendel, Carsten H. G. Müller, Andy Sombke   +3 more
doaj   +1 more source

ken [PDF]

, 2001
From the beginning, the world of game-playing by machine has been fortunate in attracting contributions from the leading names of computer science. Charles Babbage, Konrad Zuse, Claude Shannon, Alan Turing, John von Neumann, John McCarthy, Alan Newell, Herb Simon and Ken Thompson all come to mind, and each reader will wish to add to this list. Recently,
Haworth, Guy McCrossan, Heinz, Ernst A
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