Multi‐Mode Reconfigurable DNA‐Based Chemical Reaction Circuits for Soft Matter Computing and Control

2021 ◽  
Author(s):  
Qian Tang ◽  
Wei Lai ◽  
Peipei Wang ◽  
Xiewei Xiong ◽  
Mingshu Xiao ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Soft Matter ◽  
And Control ◽  
Multi Mode

Multi‐Mode Reconfigurable DNA‐Based Chemical Reaction Circuits for Soft Matter Computing and Control

2021 ◽  
Author(s):  
Qian Tang ◽  
Wei Lai ◽  
Peipei Wang ◽  
Xiewei Xiong ◽  
Mingshu Xiao ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Soft Matter ◽  
And Control ◽  
Multi Mode

scholarly journals Production of cold formaldehyde molecules for study and control of chemical reaction dynamics with hydroxyl radicals

2006 ◽  
Vol 73 (6) ◽  
Author(s):  
Eric R. Hudson ◽  
Christopher Ticknor ◽  
Brian C. Sawyer ◽  
Craig A. Taatjes ◽  
H. J. Lewandowski ◽  
...  
Keyword(s):  
Hydroxyl Radicals ◽  
Chemical Reaction ◽  
Reaction Dynamics ◽  
Chemical Reaction Dynamics ◽  
And Control

scholarly journals Grip on complexity in chemical reaction networks

2017 ◽  
Vol 13 ◽  
pp. 1486-1497 ◽  
Author(s):  
Albert S Y Wong ◽  
Wilhelm T S Huck
Keyword(s):  
Complex Networks ◽  
Chemical Reaction ◽  
Biological Networks ◽  
Chemical Reaction Networks ◽  
Living Systems ◽  
Reaction Networks ◽  
Natural Systems ◽  
Systems Chemistry ◽  
Single Chemical ◽  
And Control

A new discipline of “systems chemistry” is emerging, which aims to capture the complexity observed in natural systems within a synthetic chemical framework. Living systems rely on complex networks of chemical reactions to control the concentration of molecules in space and time. Despite the enormous complexity in biological networks, it is possible to identify network motifs that lead to functional outputs such as bistability or oscillations. To truly understand how living systems function, we need a complete understanding of how chemical reaction networks (CRNs) create function. We propose the development of a bottom-up approach to design and construct CRNs where we can follow the influence of single chemical entities on the properties of the network as a whole. Ultimately, this approach should allow us to not only understand such complex networks but also to guide and control their behavior.

scholarly journals Study on Roller-Walker – Multi-mode Steering Control and Self-Contained Locomotion –

2000 ◽  
Vol 12 (5) ◽  
pp. 559-566 ◽  
Author(s):  
Gen Endo ◽  
◽  
Shigeo Hirose
Keyword(s):  
Control System ◽  
Mobile Robot ◽  
Constant Velocity ◽  
Control Method ◽  
Light Weight ◽  
Steering Control ◽  
Rugged Terrain ◽  
Hybrid Function ◽  
And Control ◽  
Multi Mode

We have proposed a new leg-wheel hybrid mobile robot named ""Roller-Walker"". Roller-Walker is a vehicle with a special foot mechanism, which changes to a sole in walking mode and a passive wheel in skating mode. On rugged terrain the vehicle walks in leg mode, and on level or comparatively smooth terrain the vehicle makes wheeled locomotion by roller-skating using the passive wheels. The characteristics of Roller-Walker are: 1) it has a hybrid function but it is light-weight, 2) it has the potential capability to exhibit high terrain adaptability in skating mode if the control method for roller-wolfing is fully investigated in the future. In this paper, the 4 leg trajectory of straight Roller-Walk is optimized in order to achieve maximum constant velocity. Also steering roller-walk control method is proposed. It is obtained by the expansion of the straight roller-walk trajectory theory adding an offset to the swinging motion. This steering method resembles that of a car. The control system was modified into an untethered system, and control experiments were performed. The realization of the steering motion was verified by them.

Origin and Control of Kinetic and Thermodynamic Hysteresis in Clustering of Gold Nanoparticles

2020 ◽  
Author(s):  
Joscha Kruse ◽  
Stefan Merkens ◽  
Andrey Chuvilin ◽  
Marek Grzelczak
Keyword(s):  
Gold Nanoparticles ◽  
Dynamic Systems ◽  
Soft Matter ◽  
Fine Tuning ◽  
Biological Processes ◽  
Kinetic Rate ◽  
Rate Dependent ◽  
Experimental Parameters ◽  
The Difference ◽  
And Control

Hysteresis is an essential attribute of many solid-state devices and biological processes, yet it is often overlooked in colloidal and soft-matter dynamic systems. Herein we show that gold nanoparticles can remain dispersed or aggregated at the same temperature depending on the trajectory of applied stimulus, featuring hysteretic behaviour. Aided by real-time analytics and fine tuning of experimental parameters, such as salt concentration, nanoparticle diameter and surface potential, we disentangled kinetic (rate-dependent) and thermodynamic (rate-independent) component of hysteresis in cyclic clustering of nanoparticles. The hysteresis originates from the difference in the aggregation and disassembly temperatures. Our findings enrich the repertoire of experimental framework suitable for study life-like features on purely synthetic settings.

Liquid crystal templating as an approach to spatially and temporally organise soft matter

2017 ◽  
Vol 46 (19) ◽  
pp. 5935-5949 ◽  
Author(s):  
Pim van der Asdonk ◽  
Paul H. J. Kouwer
Keyword(s):  
Liquid Crystal ◽  
Soft Matter ◽  
Length Scales ◽  
Multiple Length Scales ◽  
And Control ◽  
Liquid Crystal Templating

Liquid crystal templating: an emerging technique to organise and control soft matter at multiple length scales.

Analysis and Control of Multi-Mode Axial Flow Compression System Models1

1999 ◽  
Vol 122 (3) ◽  
pp. 393-401 ◽  
Author(s):  
MingQing Xiao ◽  
Tamer Bas¸ar
Keyword(s):  
Closed Loop ◽  
Controller Design ◽  
Axial Flow ◽  
Pressure Rise ◽  
Open Loop ◽  
Rotating Stall ◽  
Flow Compression ◽  
The Right ◽  
And Control ◽  
Multi Mode

The paper studies the behavior of multi-mode systems of the Moore-Greitzer model. Its main result is the existence of a parameterized nonlinear state feedback controller which stabilizes the system to the right of the peak of the compressor characteristic. In this process, a rotating stall envelope surface is discovered, and it is shown that the controller design achieves the tasks of preventing the closed-loop system from entering either rotating stall or surge, and making the closed-loop pressure rise coefficient be able to approach its maximum. Numerical simulations of the open-loop and closed-loop models are presented to illustrate the analysis and the results. [S0022-0434(00)00803-0]

scholarly journals A multi-mode filtering technique to assure real-time data sharing in information and control system

2002 ◽  
Vol 122 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Katsumi Kawano ◽  
Shigetoshi Sameshima ◽  
Yoshiaki Adachi ◽  
Norihisa Komoda
Keyword(s):  
Control System ◽  
Real Time ◽  
Data Sharing ◽  
Time Data ◽  
Real Time Data ◽  
Filtering Technique ◽  
And Control ◽  
Multi Mode

Design of a Hybrid Aerial Robot with Multi-Mode Structural Efficiency and Optimized Mid-Air Transition

2019 ◽  
Vol 07 (04) ◽  
pp. 195-213 ◽  
Author(s):  
Jun En Low ◽  
Danial Sufiyan ◽  
Luke Soe Thura Win ◽  
Gim Song Soh ◽  
Shaohui Foong
Keyword(s):  
Robot Design ◽  
Propulsion Systems ◽  
Structural Efficiency ◽  
Flight Mode ◽  
Aerial Robot ◽  
Aerial Vehicle ◽  
Mode Characteristics ◽  
And Control ◽  
Aerodynamic Surfaces ◽  
Multi Mode

In this paper, we explore a novel multi-mode hybrid Unmanned Aerial Vehicle (UAV). We combine a tailless fixed-wing with a dual-wing monocopter such that the craft’s propulsion systems and aerodynamic surfaces are fully utilized in both a horizontal cruising mode and a vertical hovering mode. This maximizes the structural efficiency across the flight envelope, thereby reducing drag and unused mass while airborne in either flight mode. This UAV is also designed such that the transition between the two flight modes can be executed in mid-air, using only its existing flight actuators and sensors — there are no transition specific actuators. Using two prototypes, the foundational design and control of the system is established; the first explores the hovering mode characteristics of the unique dual-wing monocopter configuration, while the second explores the full multi-mode capabilities of the combined platform. In addition to analytical simulations, the prototypes are experimentally evaluated and assessed to demonstrate the feasibility, viability and potential of this multi-mode aerial robot design.

Multi-Mode Flight Control Simulation of UAV Based on Stateflow and GUI

2012 ◽  
Vol 241-244 ◽  
pp. 1545-1549
Author(s):  
Ning Zhang ◽  
Hua Wei Chen ◽  
Kai Yu Qin
Keyword(s):  
Remote Control ◽  
Simulation Model ◽  
Flight Control ◽  
Control Law ◽  
Control Logic ◽  
Control Instruction ◽  
And Control ◽  
Designing Method ◽  
Multi Mode ◽  
Navigation Strategies

Considering a UAV has different flight control modes, such as remote control instruction flight and auto-navigation flight, this paper uses modular designing method to describe the overall structure of simulation model, and based on the way of loading waypoint, focuses on discussing the control logic of auto-navigation flight. Furthermore, according to the flight control logic of UAV, the simulation model was built by using Stateflow, and combining with Matlab GUI, the remote control instruction was realized. The simulation results in the auto-navigation flight can effectually verify the correctness of the design of flight navigation strategies and control law. It is practical to build the simulation environment by using Stateflow and GUI technology.

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