Results 31 to 40 of about 2,770,785 (296)

Tracing metal footprints via global renewable power value chains

Nature Communications, 2023
The globally booming renewable power industry has stimulated an unprecedented interest in metals as key infrastructure components. Many economies with different endowments and levels of technology participate in various production stages and cultivate ...
Rao Fu, Kun Peng, Peng Wang, Honglin Zhong, Bin Chen, Pengfei Zhang, Yiyi Zhang, Dongyang Chen, Xi Liu, Kuishuang Feng, Jiashuo Li   +10 more
doaj   +1 more source

Comparison of Physicochemical Properties of Two Types of Polyepichlorohydrin-Based Anion Exchange Membranes for Reverse Electrodialysis

Membranes, 2022
The development of the most effective, suitable and economic ion-exchange membranes is crucial for reverse electrodialysis (RED)—the most widely studied process to harvest salinity gradient energy from mixing seawater and river water.
Ezgi Karakoç, Enver Güler
doaj   +1 more source

Boosting capacitive blue-energy and desalination devices with waste heat

, 2014
We show that sustainably harvesting 'blue' energy from the spontaneous mixing process of fresh and salty water can be boosted by varying the water temperature during a capacitive mixing process.
Härtel, Andreas, Janssen, Mathijs, van Roij, René   +2 more
core   +1 more source

Blue Energy

Revista Internacional de Educação, Saúde e Ambiente, 2019
RESUMO A protecção do meio ambiente é uma preocupação de todos nós. As energias renováveis, tem um papel fundamental na redução dos efeitos estufa. Uma das grandes problemáticas encontrada nas energias renováveis além dos custos altos associado é a variabilidade e a intermitência.
openaire   +1 more source

Double‐Dipole Induced by Incorporating Nitrogen‐Bromine Hybrid Cathode Interlayers Leads to Suppressed Current Leakage and Enhanced Charge Extraction in Non‐Fullerene Organic Solar Cells

Advanced Science, 2023
The cathode interlayer plays a vital role in organic solar cells, which can modify the work function of electrodes, lower the electron extraction barriers, smooth the surface of the active layer, and remove solvent residuals.
Yangchao Zheng, Jingjing Zhao, Huanpeng Liang, Zhenmin Zhao, Zhipeng Kan   +4 more
doaj   +1 more source

Concepts and Misconceptions Concerning the Influence of Divalent Ions on the Performance of Reverse Electrodialysis Using Natural Waters

Membranes, 2023
Divalent ions have a negative effect on the obtained power and efficiency of the reverse electrodialysis (RED) process when using natural waters. These effects can largely be attributed to the interaction between the various ions and the membranes ...
Joost Veerman
doaj   +1 more source

Oscillating non-singular relativistic spherical model [PDF]

, 1999
A particular choice of the time function in the recently presented spherical solution by Dadhich [1] leads to a singularity free cosmological model which oscillates between two regular states.
Dadhich, Naresh, Raychaudhuri, A. K.
core   +2 more sources

Effect of Co-Existing Ions on Salinity Gradient Power Generation by Reverse Electrodialysis Using Different Ion Exchange Membrane Pairs

Membranes, 2022
This study investigates the influence of co-existing ions on the salinity gradient power generation performance of the reverse electrodialysis (RED) using three different commercial ion exchange membrane pairs.
Tuğçe Zeynep Kaya, Esra Altıok, Enver Güler, Nalan Kabay   +3 more
doaj   +1 more source

A Large Blue Shift of the Biexciton State in Tellurium Doped CdSe Colloidal Quantum Dots

, 2008
The exciton-exciton interaction energy of Tellurium doped CdSe colloidal quantum dots is experimentally investigated. The dots exhibit a strong Coulomb repulsion between the two excitons, which results in a huge measured biexciton blue shift of up to 300
Franzl T., Fujisawa J.-I., Klimov V. I., Klimov V. I., Nag A., Norris D. J., Norris D. J., Oron D., Oron D., Piryatinski A., Pradhan N., Pradhan N., Sungjee K., Woggon U., Zeng Q.   +14 more
core   +2 more sources

Entropy of Contracting Universe in Cyclic Cosmology [PDF]

, 2007
Following up a recent proposal \cite{BF} for a cyclic model based on phantom dark energy, we examine the content of the contracting universe (cu) and its entropy $S_{cu}$. We find that beyond dark energy the universe contains on average zero or at most a
LAURIS BAUM, PAUL H. FRAMPTON, Tolman R. C.   +2 more
core   +4 more sources