Results 31 to 40 of about 82,173 (281)

Review and Analysis of Key Techniques in Marine Sediment Sampling

Chinese Journal of Mechanical Engineering, 2020
Deep-sea sediment is extremely important in marine scientific research, such as that concerning marine geology and microbial communities. The research findings are closely related to the in-situ information of the sediment.
Shudong He, Youduo Peng, Yongping Jin, Buyan Wan, Guangping Liu   +4 more
doaj   +1 more source

Landscape patterns of carbon fluxes in natural and disturbed ice-wedge-polygon tundra

Arctic, Antarctic, and Alpine Research
The degradation of ice-rich permafrost ecosystems due to climate change and infrastructure development strongly impacts carbon exchange dynamics in tundra landscapes.
Anja Kade, Donald A. Walker, Martha K. Raynolds, Amy L. Breen, Olivia M. Hobgood   +4 more
doaj   +1 more source

Semantic Segmentation Deep Learning for Extracting Surface Mine Extents from Historic Topographic Maps

Remote Sensing, 2020
Historic topographic maps, which are georeferenced and made publicly available by the United States Geological Survey (USGS) and the National Map’s Historical Topographic Map Collection (HTMC), are a valuable source of historic land cover and land use ...
Aaron E. Maxwell, Michelle S. Bester, Luis A. Guillen, Christopher A. Ramezan, Dennis J. Carpinello, Yiting Fan, Faith M. Hartley, Shannon M. Maynard, Jaimee L. Pyron   +8 more
doaj   +1 more source

Evaluation of Minnesota Geographic Classifications Based on Caddisfly (Trichoptera) Data [PDF]

, 2018
The ability to partition the variation of faunal assemblages into homogenous units valuable for biomonitoring is referred to as classification strength (CS). In this study, the CSs of three types of geographic classifications: watershed basin, ecological
Houghton, David C
core   +3 more sources

Using photovoice to understand community perceptions of firearm risks and protective factors among Asian Americans

American Journal of Community Psychology, EarlyView.
Abstract This study used photovoice methodology to explore Asian Americans' perspectives on the root causes and protective factors of firearm violence in their communities. Photovoice provided a participatory platform for community members to document lived experiences and identify priorities for change.
Tsu‐Yin Wu, Szu‐Hsien Chen, Xining Yang, Ken Resnicow, Hsing‐Fang Hsieh   +4 more
wiley   +1 more source

Combining satellite images with national forest inventory measurements for monitoring post-disturbance forest height growth

Frontiers in Remote Sensing
Introduction: The knowledge about forest growth, influenced by factors such as tree species, tree age, and environmental conditions, is a key for future forest preservation.
Agnès Pellissier-Tanon, Philippe Ciais, Martin Schwartz, Ibrahim Fayad, Ibrahim Fayad, Yidi Xu, François Ritter, Aurélien de Truchis, Jean-Michel Leban   +8 more
doaj   +1 more source

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir, Abderrahim Benzaouia, Said Kounbach, Abdelghani Laamaoui, Said Laassiri, Khalil El‐Hami, Rachid Benhida   +6 more
wiley   +1 more source

Problems associated with implementation of bioengineering in hill road construction in Nepal

Journal of Engineering and Applied Science, 2023
The landslide disaster, feeble geology, rapid deforestation, poor drainage system, and increase in mechanical strain have weakened the Krishna Bhir slope, Prithvi Highway, Dhading, Nepal.
Prashant Shah, Khetraj Dahal
doaj   +1 more source

Disturbance in the North Island of New Zealand: A case study using floodplain cores from the Coromandel to determine anthropogenic disturbance : A thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Geography Massey University, New Zealand [PDF]

, 2016
It is well documented that following human occupation of a region, the surrounding environment may undergo drastic changes through vegetation pattern alterations, displacement of fauna, alteration of sedimentation and fluvial regimes, and changes to the ...
Fox, Elizabeth Grace
core  

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun   +8 more
wiley   +1 more source