Results 51 to 60 of about 30,469 (262)

Monitoring Active Volcanoes

Eos, Transactions American Geophysical Union, 1996
Monitoring volcanoes is a surprisingly controversial enterprise. Some volcanologists argue that monitoring promises too much and delivers too little for risk mitigation. They trust only strict land‐use measures (and accompanying high insurance premiums in risky zones) and urge that funds be used for public education and awareness rather than for ...
openaire   +1 more source

Co1/Ru Single‐Atom Alloy Catalyst for Sustainable Polypropylene Hydrogenolysis to Long‐Chain Liquid Products

Advanced Materials, EarlyView.
A titania‐supported Co1/Ru single‐atom alloy catalyst enables efficient polypropylene hydrogenolysis. Ru─Co─Ru motifs maintain Ru activity while suppressing excessive chain scission to gaseous products. Both virgin and waste plastics achieve high, environmentally and economically optimal C11+ liquid yields, supporting sustainable chemical recycling ...
Yuzhen Ge, Yimeng Jin, Alexandra Krestnikova, Sibei Zou, Antonio J. Martín, Gonzalo Guillén‐Gosálbez, Javier Pérez‐Ramírez   +6 more
wiley   +1 more source

Transient Laser‐Shocked Synthesis of Amorphous Layer‐Supported Metal Nanocrystals for Efficient Nitrate Reduction

Advanced Materials, EarlyView.
A general, versatile laser‐shock synthesis process is reported to produce various bimetallic CuNi, CuFe, CuCo, and medium‐entropy CuFeCoNi heterostructures, in which crystalline metal nanoparticles are anchored to amorphous hydroxide supports. During nitrate reduction reaction, the heterostructures undergo dynamic amorphous/crystalline reconstruction ...
Weihua Guo, Jixun Zhang, Siwei Zhang, Yangbo Ma, Yun Song, Jianjun Su, Zihao Li, Yinger Xin, Qiang Zhang, Mingming He, Ruixuan Wang, Rui Xue, Shibo Xi, Ying Wang, Shenlong Zhao, Tao Yang, Zhengxiao Guo, Ben Zhong Tang, Ruquan Ye   +18 more
wiley   +1 more source

A Dual‐Bioresponsive and Programmable Microneedle Matrix as a Bioinspired Coupler for Orchestrating Diabetic Bone Regeneration

Advanced Materials, EarlyView.
This project developed a smart bandage‐like patch (a microneedle array) for repairing diabetic bone damage. It intelligently senses signals from infection and inflammation, then releases its medicines in a specific, timed sequence: first an antibacterial agent, then an anti‐inflammatory agent, and finally growth factors.
Yu Wang, Rui Chen, Yu Chen, Haowen Lu, Yuchen Qian, Zhiheng Gao, Zheming Shen, Xiaofei Zheng, Huilin Yang, Jun Zou, Yusen Qiao   +10 more
wiley   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Pre‐Encoded IFN‐I Sensitivity Exacerbates Memory T Cell Senescence in Solid Tumors

Advanced Science, EarlyView.
Type I interferon (IFN‐I) signaling promotes p21‐dependent cell cycle arrest in senescent tumor‐specific memory T cells, resulting in poor proliferative responses and solid tumor regression during cancer vaccination. Conversely, IFNα/β receptor blockade reinvigorates T cell proliferation to regress solid tumors and is more effective with increasing ...
Andrew Nguyen, Scott R Walsh, Li Deng, Lan Chen, Yonghong Wan   +4 more
wiley   +1 more source

The Effects of Tropospheric Bias on Deformation Monitoring of MT. Guntur using GPS Survey Method

Journal of Mathematical and Fundamental Sciences, 2019
Pemantauan deformasi gunung api yang andal menuntut ketelitian yang tinggi, yaitu sampai level keteliatian mm untuk kasus gunung api yang tengah 'bangkit' kembali. Konsekuensinya adalah kesalahan dan bias yang dapat mengurangi ketelitian dalam penentuan
Hasanuddin Z. Abidin, O. Yolanda, I. Meilano, M.A. Kusuma, D. Muhardi, B. Setyadi, J. Kahar, O.K. Suganda, R. Sukhyar, T. Tanaka   +9 more
doaj  

Volcanic Thunder From Explosive Eruptions at Bogoslof Volcano, Alaska

Geophysical Research Letters, 2018
Lightning often occurs during ash‐producing eruptive activity, and its detection is now being used in volcano monitoring for rapid alerts. We report on infrasonic and sonic recordings of the related, but previously undocumented, phenomenon of volcanic ...
Matthew M. Haney, Alexa R. Van Eaton, John J. Lyons, Rebecca L. Kramer, David Fee, Alexandra M. Iezzi   +5 more
doaj   +1 more source

Monitoring of fumarole discharge and CO2 soil degassing in the Azores: contribution to volcanic surveillance and public health risk assessment

Annals of Geophysics, 2005
Fluid geochemistry monitoring in the Azores involves the regular sampling and analysis of gas discharges from fumaroles and measurements of CO2 diffuse soil gas emissions.
C. Faria, M. Marcos, F. Viveiros, J. L. Gaspar, T. Ferreira, F. Sousa   +5 more
doaj   +1 more source

Geochemical volcano monitoring

The geochemistry of volcanic fluids is increasingly employed at volcano observatories worldwide to assess volcano activity state, and eruption potential. Here, we review the state-of-the-art in the field, with a primary focus on the most recent developments in instrumental gas monitoring that have rendered geochemistry an increasingly effective ...
Alessandro Aiuppa, Mariano Agusto, Patrick Allard, Simon Carn, J. Maarten de Moor, Salvatore Inguaggiato, Agnes Mazot, Yves Moussallam, Patricia Nadeau   +8 more
openaire   +1 more source