Results 51 to 60 of about 1,012,162 (260)

Determinants of Food Insecurity among Households in Addis Ababa City, Ethiopia [PDF]

Interdisciplinary Description of Complex Systems, 2012
Even though there is long-held belief that urban populations are better off, or even favoured than rural populations, the recent food and financial crises have highlighted the problem of urban food insecurity in developing countries.
Girma Gezimu Gebre
doaj  

Structural Power Composites Based on High Mass Loading Zn‐Ion Hybrid Supercapacitors with Metal Mesh Current Collectors and Aramid Nanofiber/Glass Fiber Composite Electrolytes

Advanced Functional Materials, EarlyView.
A multifunctional structural power composite is developed by integrating high‐mass‐loading Zn‐ion hybrid supercapacitors with metal mesh current collectors and aramid nanofiber‐based composite electrolytes, enabling simultaneous load‐bearing capability and enhanced areal energy storage.
Yuseung Choi, Gilyong Shin, Hoyeon Lee, Eun Jae Nam, Byeong Jun So, Sungryul Yun, Fu‐Kuo Chang, Jei Gyeong Jeon, Tae June Kang   +8 more
wiley   +1 more source

Outdoor activity and walking for leisure in the COVID-19 era: their correlates and mutual relationship

Journal of Asian Architecture and Building Engineering
The pandemic has changed daily urban life, including leisure activities and travel patterns. Although several studies have tracked changes in leisure and travel behavior due to the pandemic, few have analyzed the effects of COVID-19 preventive behavior ...
Tsolmon Bayarsaikhan, Moon-Hyun Kim, Tae-Hyoung Tommy Gim   +2 more
doaj   +1 more source

A Miniaturized Autonomous Thermomagnetic Generator

Advanced Functional Materials, EarlyView.
Micro, autonomous and high power thermomagnetic generator operating between a heat dissipator and a processor. ABSTRACT Thermomagnetic generators (TMG) are promising devices for converting low‐grade waste heat into electricity. Self‐actuation using permanent magnets is the key to autonomy.
Morgan Almanza, Doan Nguyen Ba, Nesrine Belkadi, Erika Fontana, Jean‐Eudes Duvauchelle, Sukhendu Sadhukhan, Loïc Becerra, Thibaut Devillers, Massimiliano Marangolo, Fabien Parrain, Nora M. Dempsey, Martino LoBue   +11 more
wiley   +1 more source

Sub‐City Scale Hourly Air Quality Forecasting by Combining Models, Satellite Observations, and Ground Measurements

Earth and Space Science, 2021
While multiple information sources exist concerning surface‐level air pollution, no individual source simultaneously provides large‐scale spatial coverage, fine spatial and temporal resolution, and high accuracy.
C. Malings, K. E. Knowland, C. A. Keller, S. E. Cohn   +3 more
doaj   +1 more source

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source

Investigation of Persistent Luminescence of Strontium Aluminate in Polymer Films for Passive Daytime Radiative Cooling Application

Advanced Materials Interfaces, EarlyView.
Persistent Luminescence of doped SrAl2O4:Eu2+, Dy3+ formulated in polymer matrices is a promising solution to be integrated in building envelopes for enhancing Passive Daytime Radiative Cooling. ABSTRACT Persistent Luminescent (PersL) materials have found applications in several fields; their integration into passive daytime radiative cooling systems ...
Roberto Bondi, Francesco Marchini, Giulia Quaglia, Claudia Fabiani, Anna Laura Pisello, Loredana Latterini   +5 more
wiley   +1 more source

Do Drivers of Labor Force Participation Differ for Male and Female in the Rural and Urban Labor Markets in India?

The Journal of Indian and Asian Studies
The labor force participation rate of women in India has decreased despite economic growth, which has limited the advancement of their rights unlike in most other countries.
WONBIN PARK
doaj   +1 more source

A U‐shaped Microfluidic Platform for Culturing Vascularized Colorectal Cancer Spheroids Reveals Tumor–Endothelial Crosstalk and Invasion‐Associated Remodeling

Advanced Materials Technologies, EarlyView.
A closed U‐shaped microfluidic platform symmetrically embeds a single, size‐controlled HT29 colorectal cancer spheroid within a GFP‐HUVEC‐laden fibrin matrix. HT29 spheroids are associated with hyper‐branched endothelial network remodeling, while vascularized co‐culture is accompanied by anisotropic protrusive growth and EMT‐like marker changes in the ...
G. Cretti, M. Ballerini, A. Mantegazza, P. Occhetta, M. Rasponi   +4 more
wiley   +1 more source

Urban robotics and responsible urban innovation [PDF]

Ethics and Information Technology, 2018
AbstractRobots are leaving factories and entering urban spaces. In this paper, I will explore how we can integrate robots of various types into the urban landscape. I will distinguish between two perspectives: (1) the responsible design and use of urban robots and (2) robots as part of responsible urban innovations. The first viewpoint considers issues
openaire   +3 more sources