Synthesis of reusable and renewable microporous organic networks for the removal of halogenated contaminants

2021 ◽  
pp. 127485
Author(s):  
Yi-Xuan Wang ◽  
Yuan-Yuan Cui ◽  
Yan Zhang ◽  
Cheng-Xiong Yang
Keyword(s):  
2021 ◽  
Author(s):  
Luis David Rosales-Vazquez ◽  
Alejandro Dorazco-González ◽  
Victor Sanchez-Mendieta

Optical sensors with high sensitivity and selectivity, as important analytical tools for chemical and environmental research, can be accomplished by straightforward synthesis of luminescent one-, two- and three-dimensional Zn(II) and...


2009 ◽  
Vol 9 (7) ◽  
pp. 3006-3010 ◽  
Author(s):  
Łukasz Jaremko ◽  
Alexander M. Kirillov ◽  
Piotr Smoleński ◽  
Armando J. L. Pombeiro

Nanoscale ◽  
2015 ◽  
Vol 7 (45) ◽  
pp. 18923-18927 ◽  
Author(s):  
Hwa Seob Choi ◽  
Hyung Joon Jeon ◽  
Jung Hoon Choi ◽  
Gyu-Heon Lee ◽  
Jeung Ku Kang

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3091 ◽  
Author(s):  
Pedro Ponce ◽  
J. Antonio Rosales ◽  
Arturo Molina ◽  
Hiram Ponce ◽  
Brian MacCleery

Electric direct-current (DC) drives based on DC motor are extremely important in the manufacturing process, so it must be crucial to increase their performance when they are working on load disturbances or the DC motor’s parameters change. Usually, several load torque suddenly appears when electric drives are operating in a speed closed-loop, so robust controllers are required to keep the speed high-performance. One of the most well-known robust strategies is the sliding mode controller (SMC), which works under discontinue operation. This controller can handle disturbances and variations in the plant’s parameters, so the controller has robust performance. Nevertheless, it has some disadvantages (chattering). Therefore, this paper proposed a fuzzy logic controller (FLC) that includes an artificial organic network for adjusting the command signal of the SMC. The proposed controller gives a smooth signal that decrements the chattering in the SMC. The stability condition that is based on Lyapunov of the DC motor is driven is evaluated; besides, the stability margins are calculated. The proposed controller is designed using co-simulation and a real testbed since co-simulation is an extremely useful tool in academia and industry allows to move from co-simulation to real implementation in short period of time. Moreover, there are several universities and industries that adopt co-simulation as the main step to design prototypes. Thus, engineering students and designers are able to achieve excellent results when they design rapid and functional prototypes. For instance, co-simulation based on Multisim leads to design directly printed circuit boards so engineering students or designers could swiftly get an experimental DC drive. The experimental results using this platform show excellent DC-drive performance when the load torque disturbances are suddenly applied to the system. As a result, the proposed controller based on fuzzy artificial organic and SMC allows for adjusting the command signal that improves the dynamic response in DC drives. The experimental response using the sliding-mode controller with fuzzy artificial organic networks is compared against an auto-tuning, Proportional-Integral-Derivative (PID), which is a conventional controller. The PID controller is the most implemented controller in several industries, so this proposal can contribute to improving manufacturing applications, such as micro-computer numerical control (CNC) machines. Moreover, the proposed robust controller achieves a superior-speed response under the whole tested scenarios. Finally, the presented design methodology based on co-simulation could be used by universities and industry for validating and implementing advanced control systems in DC drives.


2017 ◽  
Vol 54 (2) ◽  
pp. 190-206
Author(s):  
Helle Schulz Bildsøe ◽  
Ulla Rahbek

In the novel Tokyo Cancelled (2005), Rana Dasgupta explores the contemporary age of globalization as a time of chaotic change. Tokyo Cancelled is composed as a story cycle of 13 tales. This article focuses on one of these tales in particular, “The Changeling”. “The Changeling” relates the tumultuous experiences of Bernard, who is a changeling and archetypal stranger in the pestilence-ridden city of contemporary Paris. The article explores the juxtaposition of systemic and organic networks as the central trope through which Dasgupta explores change and connectivities in a global twenty-first-century moment. We argue that the story presents a process of symbolic transformation whereby the national capital changes into a global city. This change signifies a shift from a national towards a planetary perspective. “The Changeling” comprises at least two different kinds of networks which converge and conflate into one overarching web that is the metropolis: there is a systemic network of control materialized in Montparnasse graveyard and an organic network out of control manifested in a community garden where people congregate to tell stories. Indeed, Dasgupta revisits Benjaminian storytelling as a global networking practice which, while locally contextualized in an impromptu garden in Paris, hints at an awareness of worldwide connectivity.


Polyhedron ◽  
2019 ◽  
Vol 162 ◽  
pp. 186-191
Author(s):  
Xiuli Wang ◽  
Jiahuan Liu ◽  
Xiang Wang ◽  
Guocheng Liu ◽  
Hongyan Lin

2015 ◽  
Vol 61 (4) ◽  
pp. 454-462 ◽  
Author(s):  
Laisa C. P. Costa ◽  
Jan Rabaey ◽  
Adam Wolisz ◽  
Max Rosan ◽  
Marcelo K. Zuffo

Sign in / Sign up

Export Citation Format

Share Document