Results 41 to 50 of about 7,541,874 (198)

Risk and driving factors of surface water eutrophication in the black soil region of northeast China: a study based on a novel water quality simulation method

Ecological Indicators
Excessive nitrogen and phosphorus pollution, coupled with severe climate change, has significantly intensified surface water eutrophication on a global scale.
Ziyue Zhao, Xuemei Liu, Yanfeng Wu, Peng Qi, Yexiang Yu, Jingxuan Sun, Qingsong Zhang, Guangxin Zhang, Changlei Dai   +8 more
doaj   +1 more source

Fast Cut Back Thermal Power Plant Load Rejection and Black Start Field Test Analysis

Energies, 2014
Fast and reliable black start plays a key role in improving the ability of the power system to resist the risk of large-scale blackouts. For a black start with high voltage and long-distance transmission lines, it is much easier to cause phenomena such ...
Kaiwen Zeng, Jinyu Wen, Longpeng Ma, Shijie Cheng, En Lu, Ning Wang   +5 more
doaj   +1 more source

Sermon by Reverend Black, Hand and Heart of God, 1960

, 1960
Service and sermon by Reverend Black at Mount Zion First Baptist Church, "Hand and Heart of God Which is the Power and Love of God." Listening notes: beginning to 5:49 minutes: song and prayer, Reverend Black; 5:50 to 15:35 minutes: song; 15:36 to ...
Black, Claude William (1916-2009); Mount Zion First Baptist Church (San Antonio, Tex.);
core   +1 more source

‘The Radical Black Colour’. On the Semantics of the Black Colour in Anarchist Discourse

Слово.ру: балтийский акцент, 2017
The subject of this paper is the semantics of the colour black in anarchism. The author analyses the sociocultural and ontological aspects of the colour black as a symbol of anarchist criticism of power and the state.
Martynov M.
doaj   +1 more source

Two-Stage Black-Start Optimization for Power Systems with Multi-Energy Microgrid as a Black-Start Unit

Shanghai Jiaotong Daxue xuebao
To reduce the losses caused by major power outages in power systems, a two-stage optimization method for black start of power systems is proposed using a multi-energy microgrid (MEMG) as a black-start source.
ZHU Yongqing, CHEN Changming, LI Qingsheng, LI Zhen, ZHANG Zhaofeng, LIN Zhenzhi
doaj   +1 more source

Black Religion and Black Power: The Nation of Islam’s Internationalism

Genealogy, 2019
The Nation of Islam’s influence has extended beyond the United States. This Black American Muslim movement has used the intersection of race and religion to construct a blueprint of liberation that has bonded people of African descent throughout ...
Bayyinah S. Jeffries
doaj   +1 more source

Tree on power line

, 1960
Caption: "Bear Mtn Dist. Tree on power poles broke line to start Collins fire. 11/21/60." Stamped: "Black Hills N. F. Pactola R. D.

core  

Mine site power plant

, 1988
Caption: "Mine Site - Power Plant. Note: Exhaust Stack (prc). Black Hills NF, Custer District. R-02, 08-88.
Grove, Keith L.
core  

Black Market International Proposal [PDF]

, 2002
Proposal from Black Market International offering two performance options.

core  

Living and Working Safely Around High-Voltage Power Lines. [PDF]

, 1998
High-voltage transmission lines can be just as safe as the electrical wiring in the homes--or just as dangerous. The crucial factor is ourselves: they must learn to behave safely around them.
United States. Bonneville Power Administration.
core   +1 more source