Results 51 to 60 of about 7,797 (174)

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Experimental investigation on the dynamic behaviors of UHPFRC after exposure to high temperature [PDF]

, 2019
© 2019 Elsevier Ltd Split Hopkinson pressure bar (SHPB) tests were conducted to experimentally study the dynamic behaviors of ultra-high-performance fiber-reinforced concrete (UHPFRC) after being first exposed to elevated temperatures, followed by ...
Liu, Z, Yang, Y, Liang, X, Wu, C, Xu, S
core   +1 more source

Dynamic Tensile Properties of Clay Bricks [PDF]

, 2021
It is commonly known that materials behave differently under static and dynamic loads. There is still a lack of understanding of dynamic material properties of clay bricks. Our previous study investigated the dynamic compressive properties of clay bricks.
Hao, Hong, Zhang, Xihong, Chiu, Yu-Wen, Yu-Wen Chiu, Xihong Zhang, Hong Hao   +5 more
core   +1 more source

The effect of supplementary cementitious material systems on dynamic compressive properties of ultra-high performance concrete paste [PDF]

, 2022
Supplementary cementitious materials (SCMs) have been widely used to replace cement in UHPC, which benefits to reducing CO2 emissions and declining construction costs.
Yu, Qingliang; id_orcid, Li, Shaohua, Zhuang, W., Yu, Qingliang   +3 more
core   +1 more source

A simple index for assessing cumulative human impacts on mountain lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Mountain lakes are highly sensitive ecosystems and effective sentinels of environmental change, yet the exposure and magnitude of the human footprint remain poorly quantified. In this study, we develop a simple and non‐invasive abiotic index to assess cumulative pressures on mountain lakes. The proposed index integrates eight variables grouped
Clara Sáez, Ignasi Arranz, Guillermo García‐Gómez, Javier Sánchez‐Hernández   +3 more
wiley   +1 more source

Quantifying temporal dynamics of greenhouse gas emissions in lake mesocosms: Deployment of a low‐cost measurement system

Limnology and Oceanography: Methods, EarlyView.
Abstract Greenhouse gas (GHG) emissions from freshwater ecosystems contribute significantly to global carbon budgets, yet they remain poorly constrained due to limited high‐frequency measurements. We tested a low‐cost, high‐frequency GHG measurement system in a long‐term mesocosm experiment in Lemming, Denmark, over a 7‐month period, focusing on CO2 ...
Tuba Bucak, Eti Ester Levi, Claus Melvad, Jianming Deng, Mikhail Mastepanov, Robert Ladwig, Thomas Alexander Davidson   +6 more
wiley   +1 more source

Dynamic compressive properties of metaconcrete material [PDF]

, 2022
Metaconcrete consisting of engineered aggregates is a newly manmade construction material possessing the ability to mitigate stress wave propagation and structural vibration.
Xu, C., Jin, H., Hao, H., Li, Z., Chen, W., Pham, T.M.   +5 more
core   +1 more source

Impact Properties of Recycled Aggregate Concrete with Nanosilica Modification

Advances in Civil Engineering, 2020
The optimal soaking time and nanosilica concentration were chosen by the physical properties of the nanosilica-modified recycled aggregate. Recycled aggregate concrete (RAC) and nanosilica recycled aggregate concrete (SRAC) were fabricated by using ...
Xingguo Wang, Fei Cheng, Yixin Wang, Xianggang Zhang, Haicheng Niu   +4 more
doaj   +1 more source

A framework to evaluate and identify development requirements for land‐surface models at km‐scale resolution: Application to a semi‐arid and mountainous region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This article provides a first evaluation of land‐surface models at the km‐scale resolutions at which they are used in weather and Earth‐system models. At these resolutions, the lateral transfers of water that organize landscapes play an important role in predicting evaporation correctly. Riparian processes and human water management for irrigation need
Jan Polcher, Julie Collignan, Juan Pablo Sierra Perez, Gabriele Arduini, Sophie Bastin, Martin Best, Aaron Boone, Manel Bravo, Francesca Covella, Jasper M. C. Denissen, Cenlin He, Simon Munier, Marc Prange, Elena Shevliakova   +13 more
wiley   +1 more source

Impact Resistance of Rubberized Alkali-Activated Concrete Incorporating Recycled Aggregate and Recycled Steel Fiber

Buildings
Alkali-activated concrete (AAC) features excellent mechanical properties and sustainability. The incorporation of crumb rubber (CR), recycled concrete aggregates (RCAs), and recycled steel fibers (RSFs) can further enhance environmental sustainability ...
Weixian Che, Lei Li, Zhongmin Chen, Donghua Liang, Yongchang Guo   +4 more
doaj   +1 more source