scholarly journals Exploring the electrochromic properties of poly(thieno[3,2-b]thiophene)s decorated with electron-deficient side groups

2017 ◽  
Vol 8 (4) ◽  
pp. 769-784 ◽  
Author(s):  
Shan Shao ◽  
Jingjing Shi ◽  
Imran Murtaza ◽  
Panpan Xu ◽  
Yaowu He ◽  
...  
Keyword(s):  
Response Time ◽  
Electrochromic Properties ◽  
Electrochromic Polymers ◽  
The Stability

Electron-deficient cyanophenyl side groups decrease the response time and drastically improve the stability of electrochromic polymers.

scholarly journals Synthesis and characterization of novel donor–acceptor type electrochromic polymers containing diketopyrrolopyrrole as an acceptor and propylenedioxythiophene or indacenodithiophene as a donor

RSC Advances ◽  
2018 ◽  
Vol 8 (41) ◽  
pp. 23119-23129 ◽  
Author(s):  
Xinfeng Cheng ◽  
Xiuping Ju ◽  
Hongmei Du ◽  
Yan Zhang ◽  
Jinsheng Zhao ◽  
...  
Keyword(s):  
Response Time ◽  
Fast Response ◽  
Synthesis And Characterization ◽  
Electrochromic Properties ◽  
Fast Response Time ◽  
Electrochromic Polymers ◽  
Donor Acceptor ◽  
Conjugated Copolymers

Three novel D–A type conjugated copolymers were prepared, illustrating excellent electrochromic properties, such as desirable color switches, high optical contrasts, fast response time, and high color efficiency.

scholarly journals То the synchronous work of pulsed sources of seismic waves

2019 ◽  
pp. 75-79
Author(s):  
S. P. Ekomasov
Keyword(s):  
Control System ◽  
Response Time ◽  
Half Space ◽  
Seismic Waves ◽  
Time Interval ◽  
Shock Interaction ◽  
Seismic Efficiency ◽  
Pulse Type ◽  
The Stability ◽  
The Moment

Researches have been made with the use of a hydropneumatic source of seismic waves. This source on the realized efforts of the shock interaction with a soil half-space considerably exceeds all known designs of radiators (sources) of pulse type. In this regard it shows higher seismic efficiency. The most important characteristic of the work of the pulse sources of seismic waves is a stability of the response time — a time interval from the moment of giving of a signal for producing of the blow until the very blow. Only with the achievement of the necessary stability the work in the mode of grouping of sources and accumulation of signals is possible. Features of the formation of response time of a hydropneumatic source are given. The analysis of the assessment of the parameters of synchronism of the pulse sources is made by a modem control system of their work. An influence of the rigidity of the soil on the assessment of stability of the response time and synchronism is shown. The system of the assessment of the stability used in the existing pulse sources at its application does not reflect the actual stability of response time in the radiators possessing a big force of blow.

scholarly journals Synthesis and characterization of novel donor–acceptor type neutral green electrochromic polymers containing an indolo[3,2-b]carbazole donor and diketopyrrolopyrrole acceptor

RSC Advances ◽  
2018 ◽  
Vol 8 (38) ◽  
pp. 21252-21264 ◽  
Author(s):  
Yan Zhang ◽  
Lingqian Kong ◽  
Xiuping Ju ◽  
Hongmei Du ◽  
Jinsheng Zhao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Conjugated Polymers ◽  
Band Gaps ◽  
Synthesis And Characterization ◽  
Electrochromic Properties ◽  
Electrochromic Polymers ◽  
Donor Acceptor

Two novel neutral green D–A type conjugated polymers were synthesized, illustrating satisfactory electrochromic properties, such as low band gaps, desirable color switches, excellent solubility and favorable thermal stability.

Synthesis and electrochromic properties of electrochromic polymers based on propylenedioxythiophene, diketopyrrolopyrrole and benzodithiophene units

2019 ◽  
Vol 64 ◽  
pp. 223-235 ◽  
Author(s):  
Xiaoli Liu ◽  
Lingqian Kong ◽  
Hongmei Du ◽  
Yan Zhang ◽  
Jinsheng Zhao ◽  
...  
Keyword(s):  
Electrochromic Properties ◽  
Electrochromic Polymers

A Caculation Method of Wave-Maker Mechanical Parameters Based on Matlab and Excel

2013 ◽  
Vol 391 ◽  
pp. 82-85
Author(s):  
Shou Jun Wang ◽  
Li Bo Yang
Keyword(s):  
Response Time ◽  
Mechanical Parameters ◽  
Basic Work ◽  
Time Requirements ◽  
Wave Maker ◽  
The Stability

Wave-maker mechanical parameters play an important role in the stability of the wave systems. Accurate mechanical parameters are the key part and basic work in the design and analysis of one wave-maker. In order to meet the strength, stiffness and response time requirements, its necessary to have its stress analysed before, which is meaningful to the design of the wave-maker. According to this situation, a caculation method of wave-maker mechanical parameters based on Matlab and Excel is introduced in this paper.

Donor–acceptor type polymers containing the 2,3-bis(2-pyridyl)-5,8-dibromoquinoxaline acceptor and different thiophene donors: electrochemical, spectroelectrochemistry and electrochromic properties

2016 ◽  
Vol 40 (3) ◽  
pp. 2178-2188 ◽  
Author(s):  
Shuang Chen ◽  
Di Zhang ◽  
Min Wang ◽  
Lingqian Kong ◽  
Jinsheng Zhao
Keyword(s):  
Response Time ◽  
Fast Response ◽  
Electrochromic Properties ◽  
Fast Response Time ◽  
Donor Acceptor

Three D–A type polymers were prepared, which showed desirable color switches, high optical contrasts, fast response time, and high color efficiency.

The Proposal of Ensuring the Protection of Handicapped Inhabitants of Smart House

2012 ◽  
Vol 256-259 ◽  
pp. 2962-2966 ◽  
Author(s):  
Peter Hamernik ◽  
Pavol Tanuska
Keyword(s):  
Boundary Conditions ◽  
Response Time ◽  
Healthy Person ◽  
Protection System ◽  
Smart Systems ◽  
Active Elements ◽  
Handicapped People ◽  
Smart House ◽  
The Stability ◽  
Conditions Of Stability

Smart houses are currently gaining in the development of smart systems. One of the development areas are smart systems for handicapped people. This article is devoted to handicapped inhabitants of smart house with Alzheimer's disease associated with dementia. It compares the stability of a healthy person with handicapped inhabitant, under which determine the boundary conditions of stability. It describes the proposal of starting protection system before falling backward, and needed response time of active elements.

Highly stable hybrid selenophene-3,4-ethylenedioxythiophene as electrically conducting and electrochromic polymers

2014 ◽  
Vol 5 (17) ◽  
pp. 4896-4908 ◽  
Author(s):  
Baoyang Lu ◽  
Shijie Zhen ◽  
Shimin Zhang ◽  
Jingkun Xu ◽  
Guoqun Zhao
Keyword(s):  
Stille Coupling ◽  
Hybrid Polymers ◽  
Electrochromic Properties ◽  
Electrically Conducting ◽  
Electrochromic Polymers ◽  
Stable Hybrid

A family of four novel selenophene–EDOT oligomers were synthesized using Stille coupling and electropolymerized to form highly stable conducting hybrid polymers with excellent electrochromic properties.

Open discussion

1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti
Keyword(s):  
Buenos Aires ◽  
Large Mass ◽  
List Type ◽  
Common Phenomenon ◽  
Open Discussion ◽  
The Stability ◽  
Ring Nebulae

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.

Symmetric Multistep Methods Revisited: II. Numerical Experiments

1999 ◽  
Vol 173 ◽  
pp. 309-314 ◽  
Author(s):  
T. Fukushima
Keyword(s):  
Multistep Methods ◽  
Computational Time ◽  
Integration Time ◽  
Implicit Methods ◽  
Symmetric Methods ◽  
Celestial Bodies ◽  
The Stability ◽  
Predictor Corrector ◽  
Symmetric Multistep Methods ◽  
Integration Errors

AbstractBy using the stability condition and general formulas developed by Fukushima (1998 = Paper I) we discovered that, just as in the case of the explicit symmetric multistep methods (Quinlan and Tremaine, 1990), when integrating orbital motions of celestial bodies, the implicit symmetric multistep methods used in the predictor-corrector manner lead to integration errors in position which grow linearly with the integration time if the stepsizes adopted are sufficiently small and if the number of corrections is sufficiently large, say two or three. We confirmed also that the symmetric methods (explicit or implicit) would produce the stepsize-dependent instabilities/resonances, which was discovered by A. Toomre in 1991 and confirmed by G.D. Quinlan for some high order explicit methods. Although the implicit methods require twice or more computational time for the same stepsize than the explicit symmetric ones do, they seem to be preferable since they reduce these undesirable features significantly.

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