Results 71 to 80 of about 1,767,928 (381)

Theory‐Guided Design of Non‐Precious Single‐Atom Catalyst for Electrocatalytic Chlorine Evolution

Advanced Functional Materials, EarlyView.
To overcome the reliance on noble metals for the chlorine evolution reaction (CER), we designed a non‐precious single‐atom catalyst (SAC), NiN3O–O. It achieves a low overpotential of 75 mV, 95.8% Cl2 selectivity, and outperforms commercial dimensionally stable anodes (DSAs).
Kai Ma, Longfei Yang, Xiaojin Yang, Chang Zhang, Di Zhang, Linda Zhang, Li Wei, Chenliang Ye, Hao Li, Weijie Yang   +9 more
wiley   +1 more source

FAKTOR-FAKTOR RISIKO PEMAPARAN MERKURI (Hg) TERHADAP PENAMBANG EMAS TRADISIONAL DI DESA KALIREJO, KECAMATAN KOKAP, KABUPATEN KULONPROGO [PDF]

, 2006
Usaha penambangan emas di Desa Kalirejo berlangsung sejak kurang lebih 10 tahun yang lalu. yang dilakukan dengan teknik penambangan emas secara traditional tanpa perencanaan yang baik serta teknik pengolahannya yang mempergunakan Merkuri berpotensi untuk
Suryanto, Rahmad Dwi
core  

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Polarization‐Sensitive Au‐TiO2 Nanopillars for Tailored Plasmonic Enhanced Light‐Driven Reaction Activity

Advanced Optical Materials, EarlyView.
Manipulating the product generation yield is achieved on a model plasmonic resonance‐driven reaction by tuning the nonthermal effects of localized surface plasmonic resonance on an elliptical Au‐TiO2 nanopillar metasurface. Asymmetric configuration of the elliptical nanopillar array governs the polarization‐dependent optical properties redshifting the ...
Ning Lyu, Anjalie Edirisooriya, Zelio Fusco, Dawei Liu, Lan Fu, Fiona J. Beck, Christin David   +6 more
wiley   +1 more source

Current Status and Prospects of Mineral Sorting Technology Research at Home and Abroad [PDF]

E3S Web of Conferences
With the continuous exploitation of mining resources, the grade of selected ores gradually decreases, and the cost of crushing, grinding, and beneficiation gradually increases.
Qin Guanglin, Sun Lianxi, Liu Yunzhi, Zhang Xiaoguang, Jing Xiaolei, Ji Qiang   +5 more
doaj   +1 more source

Improving the Stability of Subsurface Structures in Deep Metal Mines by Stress and Energy Adjustment: A Case Study

Advances in Civil Engineering, 2021
In deep hard-rock mines, the failure of subsurface structures (e.g., tunnels, stopes, and shafts) has been a significant problem affecting mining safety due to the high-stress environment.
Huanxin Liu, Xingquan Liu, Zhuoying Tan, Yang Liu, Guilin Li   +4 more
doaj   +1 more source

Whakaatuhia te hītori o te iwi o Marutuahu me ōna hāpū me nga taonga o te whenua, 1850 ki 1880 = Let the story be told : the iwi of Marutuahu and the discovery of gold, 1850 to 1880 : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Art in History at Massey University, Albany [PDF]

, 2006
This thesis is a study of the interaction between Māori and Pākehā in the Hauraki region during the period 1850 to 1880. It examines the role played by the iwi of Marutuahu: Ngāti Maru, Ngāti Paoa, Ngāti Tamatera, and Ngāti Whanaunga in gold mining in ...
Walsh, Judith Margaret-Mary
core  

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

Environmental pollution produced by gold artisanal mining in the Mapiri river basin, Apolobamba, Bolivia [PDF]

, 2012
Mining activity is very important in Bolivia since colonial times. Today it has been reactivated, especially gold mining, due to rise in metal prices. Artisanal and small-scale mining activities are abundant in the protected area of Apolobamba, near the ...
Alfonso Abella, María Pura, Esbrí, José María, García-Noguero, Eva María, Higueras Higueras, Pablo Leon, Palacios Ubach, Sílvia, Villegas Flores, Karla Stephanie   +5 more
core  

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

Advanced Science, EarlyView.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır, Yuan Fang, Consuelo Contreras, Andrew K. Schulz, Florian Hartmann   +4 more
wiley   +1 more source