Results 81 to 90 of about 270,629 (333)

Heat and moisture transport characteristics in permafrost embankment under seasonal rainfall

Frontiers in Earth Science
The Tibetan Plateau has exhibited a discernible trend towards increased precipitation over the past 50 years. However, previous research predominantly focused on thermal stability of permafrost without the consideration of water flux boundary conditions,
Zhanxu Wang, Laifa Wang, Xinyan Wang, Feng Ming   +3 more
doaj   +1 more source

Agar‐Based Optical Sensing System With a Phosphorescent Grid Pattern for Measuring Stress Distributions of Root Growth Using the Sampling Moiré Method

Advanced Materials Technologies, EarlyView.
This paper presents an agar medium with a phosphorescent grid pattern that measures the stress distribution generated by growing plant roots. Using phosphorescence, the system optically separates the grid pattern from the root and extracts the grid deformation.
Gakuto Kagawa, Hidetoshi Takahashi
wiley   +1 more source

Numerical study of the effect of soil texture and land use distribution on the convective precipitation

Hungarian Geographical Bulletin, 2015
In this study the Weather Research Model is used to analyse the sensitivity of convection to soil texture and land use distribution based on a heavy precipitation event.
Júlia Göndöcs, Hajnalka Breuer, Ákos Horváth, Ferenc Ács, Kálmán Rajkai   +4 more
doaj   +1 more source

Biodegradable Wireless Soil Urea Sensor Using Metamaterial Perfect Absorber for Distributed Deployment in Precision Agriculture

Advanced Materials Technologies, EarlyView.
In this study, we propose a biodegradable wireless soil urea sensor for precision agriculture. The sensor's electromagnetic response varies depending on the urea concentration, allowing the measurement of relative soil urea concentrations by analyzing the time‐transient electromagnetic response.
Yu Tanaami, Ken Sakabe, Tetsuya Yarimizo, Yasutaka Murakami, Tetsuo Kan, Hiroaki Onoe   +5 more
wiley   +1 more source

Effects of Irrigation and Straw Mulching on Microclimate Characteristics and Water Use Efficiency of Winter Wheat in North Chinas

Plant Production Science, 2008
In North China, irrigation is required to obtain a high yield from winter wheat; this results in rapid aquifer depletion. The primary objective of this study was to investigate the influencing mechanisms of irrigation and straw mulching in preserving the
Quanqi Li, Yuhai Chen, Liu Mengyu, Xunbo Zhou, Songlie Yu, Baodi Dong   +5 more
doaj   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

The microclimatology of Antarctic soils

, 2013
An understanding of the microclimatology of the ice free areas in Antarctica is needed to better quantify the impacts of human activities on this fragile environment and to help monitor global climate change processes.
MacCulloch, Roger James Lee
core  

The Evaluation and Effects of Soil Heat Flux on Ground Surface Heat Balance.

Journal of Japan Society of Hydrology and Water Resources, 1999
地中伝熱量が地表面熱収支に及ぼす影響に関する詳細な研究はこれまでほとんど行われていない.本研究では,まず北見工業大学内にある寒地気象観測露場(以下,露場と呼ぶ)における実測データを用いて地温および地中伝熱量の実用的計算法について検討した.この実用的計算法は,土壌熱特性値を近似的に一定と扱えるz-t平面の半無限場において,比較的簡単な初期条件と境界条件のもとに熱伝導方程式の解析解を求めることに特徴がある.その結果,境界条件と初期条件を実測値に基づいて与えた場合,地温の計算値は地表面境界条件より初期条件の影響を強く受け,深さ方向に一定の値を与えた場合より,3次式を用いた方が計算精度が良かった.一方,地中伝熱量の計算値は地表面境界条件の影響を強く受け,区分的一定より区分的線形とする方が計算精度が高かった ...
KOJIMA, Masahiro, SADO, Kimiteru, NAKAO, Takashi   +2 more
openaire   +2 more sources

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Toward a consistency cross-check of eddy covariance flux–based and biometric estimates of ecosystem carbon balance [PDF]

, 2009
Quantification of an ecosystem's carbon balance and its components is pivotal for understanding both ecosystem functioning and global cycling. Several methods are being applied in parallel to estimate the different components of the CO2 balance. However,
Schulze, E., Janssens, I.A., Schulze, E.D., Linder, S.K., Schulze, E.-D., Janssens, I., Goulden, Michael L., Reichstein, M., Kutsch, W.L., Papale, D., Saunders, M., Law, B. E., Matteucci, G, Kutsch, Werner L., Moors, E., Munger, J. W., Schulze, Ernst-Detlef, Pilegaard, Kim, Janssens, Ivan, Falge, E., Janssens, I. A., Munger, J.W., Janssens, Ivan A., Moors, E.; id_orcid, Law, B., Kutsch, W., Munger, J. William, Moors, E. J., Law, Beverly E., Luyssaert, Sebastiaan, Pilegaard, K., Dragoni, D., Granier, A., Linder, S., Kutch, W.L., Falge, E.M., Schulze, E. D., Goulden, M. L., Falge, E. M., Luyssaert, S.; id_orcid, Munger, J., Luyssaert, S., Law, B.E., Goulden, M., Moors, E.J., Kutsch, W. L., Goulden, M.L., Matteucci, G.   +47 more
core   +1 more source