scholarly journals Improving Long-Term Anode Stability in Capacitive Deionization Using Asymmetric Electrode Mass Ratios

2021 ◽  
Author(s):  
Yazeed Algurainy ◽  
Douglas F. Call
Keyword(s):  
Capacitive Deionization ◽  
Electrode Mass ◽  
Mass Ratios

scholarly journals Two Contact Binaries with Mass Ratios Close to the Minimum Mass Ratio

2021 ◽  
Vol 922 (2) ◽  
pp. 122
Author(s):  
Kai Li ◽  
Qi-Qi Xia ◽  
Chun-Hwey Kim ◽  
Shao-Ming Hu ◽  
Di-Fu Guo ◽  
...  
Keyword(s):  
Gyration Radius ◽  
Mass Ratio ◽  
Mass Ratios ◽  
Contact Binaries ◽  
Contact Binary ◽  
Low Mass ◽  
Ratio Limit ◽  
Low Mass Ratio ◽  
Diagram Analysis

Abstract The cutoff mass ratio is under debate for contact binaries. In this paper, we present the investigation of two contact binaries with mass ratios close to the low mass ratio limit. It is found that the mass ratios of VSX J082700.8+462850 (hereafter J082700) and 1SWASP J132829.37+555246.1 (hereafter J132829) are both less than 0.1 (q ∼ 0.055 for J082700 and q ∼ 0.089 for J132829). J082700 is a shallow contact binary with a contact degree of ∼19%, and J132829 is a deep contact system with a fill-out factor of ∼70%. The O − C diagram analysis indicated that the two systems manifested long-term period decreases. In addition, J082700 exhibits a cyclic modulation which is more likely resulting from the Applegate mechanism. In order to explore the properties of extremely low mass ratio contact binaries (ELMRCBs), we carried out a statistical analysis on contact binaries with mass ratios of q ≲ 0.1 and discovered that the values of J spin/J orb of three systems are greater than 1/3. Two possible explanations can interpret this phenomenon. One explanation is that some physical processes, unknown to date, are not considered when Hut presented the dynamic stability criterion. The other explanation is that the dimensionless gyration radius (k) should be smaller than the value we used (k 2 = 0.06). We also found that the formation of ELMRCBs possibly has two channels. The study of evolutionary states of ELMRCBs reveals that their evolutionary states are similar with those of normal W UMa contact binaries.

Optimization of the voltage window for long-term capacitive deionization stability

Desalination ◽  
2017 ◽  
Vol 424 ◽  
pp. 53-61 ◽  
Author(s):  
Ding Lu ◽  
Wangfeng Cai ◽  
Yan Wang
Keyword(s):  
Capacitive Deionization

Investigation of the long-term desalination performance of membrane capacitive deionization at the presence of organic foulants

Chemosphere ◽  
2018 ◽  
Vol 193 ◽  
pp. 989-997 ◽  
Author(s):  
Lin Chen ◽  
Chengyi Wang ◽  
Shanshan Liu ◽  
Qinzheng Hu ◽  
Liang Zhu ◽  
...  
Keyword(s):  
Capacitive Deionization

A newly synthesized highly stable Ag/N-carbon electrode for enhanced desalination by capacitive deionization

2020 ◽  
Vol 7 (10) ◽  
pp. 3007-3019
Author(s):  
Yingjie He ◽  
Lei Huang ◽  
Yixian Zhao ◽  
Weichun Yang ◽  
Taixu Hao ◽  
...  
Keyword(s):  
Carbon Electrode ◽  
Capacitive Deionization

A new Ag@C electrode with Ag–Nx structure was synthesized, which exhibits a high Cl− electrosorption capacity of 75.3 mg g−1 and long-term recycling stability in CDI processes.

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