Results 111 to 120 of about 142,213 (242)

Modified approach to estimating daily methane emissions of dairy cows by measuring filtered eructations during milking

Landbauforschung, 2019
The aim of this study was to compare metrics for quantifying enteric methane (CH4) emissions from individual cows during milking using frequent spot measurements and peak analysis methods.
Bell, Matt. J., Garnsworthy, Phil, Mallis, Dimitris, Eckard, Richard, Moate, Peter, Yan, Tianhai   +5 more
doaj   +1 more source

Underway CH4 measurements during POSEIDON cruise POS348

, 2008
Coastal upwelling regions have been identified as sites of enhanced CH4 emissions to the atmosphere. The coastal upwelling area off Mauritania (NW Africa) is one of the most biologically productive regions of the world's ocean but its CH4 emissions have ...
Bange, Hermann W, Hermann Werner Bange (7882481), Annette Kock (6969365), Gebhardt, Sarah, Kock, Annette, Sarah Gebhardt (8004359)   +5 more
core   +1 more source

Fate of methane in canals draining tropical peatlands

Nature Communications
Tropical wetlands and freshwaters are major contributors to the growing atmospheric methane (CH4) burden. Extensive peatland drainage has lowered CH4 emissions from peat soils in Southeast Asia, but the canals draining these peatlands may be hotspots of ...
Clarice R. Perryman, Jennifer C. Bowen, Julie Shahan, Desi Silviani P.A.B, Erin Dayanti, Yulita Andriyani, Adibtya Asyhari, Adi Gangga, Nisa Novita, Gusti Z. Anshari, Alison M. Hoyt   +10 more
doaj   +1 more source

Perovskite CsPbI3 Nanocrystal and Nanowire Incorporated G‐C3N4 Nanosheets for CO2 Reduction and NO Removal

Advanced Science, EarlyView.
CsPbI3 nanostructures integrated with g‐C3N4 formed S‐scheme heterojunctions enabling efficient photocatalytic CO2 reduction and NO abatement. The g‐C3N4/CsPbI3 nanowires achieved a CO production rate of 4.6 µmol g−1 h−1, while nanocrystal composites delivered 69.5% NO removal with only 5.0% NO2 selectivity, driven by highly energetic charge carriers ...
Xiao Zhang, San Ping Jiang
wiley   +1 more source

Impact of land-use changes on the methanotrophic community structure [PDF]

Methane (CH4) is one of the most potent greenhouse gases and its increasing concentration in the Earth’s atmosphere is linked to today’s global warming. The types of land and land-use have an impact on net CH4 fluxes, e.g.
Nazaries, Loïc
core  

Comparative study of the dry reforming of methane on fluidised aerogel and xerogel Ni/Al2O3 catalysts

The xerogel and aerogel Ni(20 wt %)/Al2O3 catalysts were prepared through incipient-wetness-impregnation and co-precipitation-supercritical drying (CP-SCD), respectively.
Liao, Xin, Zhao, Yongxiang, Jiang, Zheng
core   +1 more source

Coral‐Biomimetic Structured Organic Electro‐Oxidations With Exceptional High‐Current Catalytic Performance

Advanced Science, EarlyView.
A strategy for energy‐efficient hydrogen production coupled with biomass valorization via organic electrooxidation reactions is reported. A bio‐inspired multiscale coral‐like heterostructure catalyst delivers record‐breaking OEOR performance enabled by a dual‐copper synergistic Cu+/Cu2+–Ni mechanism, establishing a universal architectural and ...
Chaoqun Pei, Tao Zhang, Congrui Yang, Yutao Tan, Zhengjie Chen, Yuyang Qian, Xiaoyu Wu, Xiaodi Liu, Xiong Liang, Jie Dong, Yongbin Guo, Haibo Ke, Wenqing Ruan, Zhenxuan Zhang, Tao Feng, Jing Peng, Jiang Ma, Baoan Sun   +17 more
wiley   +1 more source

Role of Future Climate Change, Air Pollution Control and Methane Mitigation in Driving Hydroxyl Radical (OH) and Methane Lifetime

Geophysical Research Letters
The hydroxyl radical (OH) determines the atmospheric lifetime of many pollutants like methane (CH4). This study isolates climate change, air pollution control and CH4 mitigation effects on OH concentrations ([OH]) and CH4 lifetime, by analyzing Coupled ...
G. Chua, V. Naik, L. W. Horowitz
doaj   +1 more source

Ion‐Gating Reservoir Computing for Preprocessing‐Free Speech Recognition from Throat Vibrations

Advanced Electronic Materials, EarlyView.
This work presents a throat‐mounted mechanoelectric sensor integrated with an ion‐gel/graphene reservoir device for on‐device speech recognition. The system converts raw biomechanical vibrations into rich nonlinear current dynamics, enabling efficient classification through a simple linear readout. The approach highlights a compact and tunable physical‐
Daiki Nishioka, Akito Tateyama, Hina Kitano, Takashi Nakanishi, Kazuya Terabe, Takashi Tsuchiya   +5 more
wiley   +1 more source

Multiscale Carbon‐Integrated Silicon Anode for Stable Cycling Under Practical Lithium‐Ion Battery Conditions

Advanced Energy Materials, EarlyView.
To overcome silicon anode instability, a hierarchical silicon/carbon composite fabricated from industrial waste via a scalable milling process is demonstrated. In‐depth post‐mortem analysis reveals how functional carbons—a CNT network and graphene shell—synergistically suppress degradation. This robust design delivers outstanding stability in practical
Young‐Ro Lee, Seong Chul Hong, Kyoungoh Kim, Jooha Park, Jihyeon Kim, Byungwook Kang, Youngsu Kim, Chaelin Lee, Soogyeong Son, Byungmo Cho, Junhyung Kim, Sang‐Gil Woo, Gwan‐Hyoung Lee, Kisuk Kang   +13 more
wiley   +1 more source