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We report a flexible self-generated triboelectric microfluidic sensor based on liquid-solid triboelectrification and electrostatic induction mechanism. The flexible microfluidic sensor can be conformally attached on curved surfaces and work under two sensing modes - triboelectric single electrode mode and interdigital (IDT) electrode mode. The microfluidic sensor has linear force sensing range up...
Idea Graph is a core component of Idea Discovery, which discovers idea by converting unstructured data into a scenario graph. Since the scenario graph is complex and heterogeneous, the layouts generated by general graph layout algorithms can't well support human cognition. To tackle this issue, a novel graph layout algorithm named CiFDAL is proposed, which is a hybrid of circular layout algorithm...
In this paper, coupled analysis of a parallel-connected FLNG and LNG carrier system is carried out in time domain method, taking into account of the hydrodynamic interaction between the two vessels, as well as the mechanical interaction between the vessels, moorings, hawsers and fenders. The allowable safe range of side-by-side offloading operation is derived by considering the check of two vessels'...
A simple and cost-effective approach of using contact-electrification effect to convert mechanical energy due to breathing motion into electric energy is demonstrated. A triboelectric generator (TG) is fabricated by using two polymer films made of materials with distinct triboelectric characteristics, with metal electrode deposited on the non-contact side of each film. The TG is housed in a substrate...
The locomotion performances of a quadruped robot with compliant feet based on closed-chain mechanism legs are presented. The legs of this quadruped robot were made up of six-bar linkage mechanism with one degree of freedom. And a special foot trajectory could be gained through kinematic analysis and optimum design of the six-bar linkage mechanism. In order to reduce the impact force of quadruped robot's...
A new process for making SU-8 neural probe with fluidic channels and gold electrodes based on multi-layered thin parylene and SU-8 is presented here. This approach can realize a thin 15 µm gap between electrode surface and neural cells. The thin gap will help to enhance the neural signal acquisition. Fluidic testing and mechanical testing are conducted to ensure the device reliability.
Some organic compounds were proven to exist on the failed electrical contacts on the printed circuit boards in mobile phones. They mixed with both the dust particles and wear debris to cause contact failure under fretting conditions. The bonding function of organic compounds to particles and the influencing factors were analyzed theoretically. As one of the organic compounds found on the contaminated...
this article talks about the mechanism of frost heave and thawing subsidence damage to buildings, then analyzed the main factors and some different prevention measure, so it is helpful to design and construction.
Dust particles can cause serious failure of electrical contacts. Designing and building a proper test system to simulate exposure to dust particles is an urgent need. To choose the appropriate materials to act as artificial dust particles is one of the major processes. Based on the previous analysis of dust collected indoors from west of Beijing and contaminated particles on the failed contacts of...
This paper design the active suspension considering four connected subsystems- mechanical subsystem, control subsystem, electronic subsystem and hydraulic subsystem. Electrodydraustatics actuator (EHA) which is widely used in Power-By-Wire (PBW) system is applied to active suspension in this article instead of traditional hydraulic valve components. After the modeling,the active suspension fuzzy PID...
To suppress the vibration of a semi-active suspension with four magneto-rheological dampers, a new two-layer control strategy is put forward. The upper layer provides the desired forces of four MR dampers according to the optimal control of the full-vehicle suspension, while the lower layer applies the input voltages to MR dampers to make their forces to approximate the desired forces, through the...
It is extremely difficult to describe the direct and inverse model of the Magneto-rheological (MR) damper, because an MR damper has strong nonlinearity between inputs and output. The paper presents a novel way to model these two models by using the universal approximation of neuro-fuzzy system. Two different neuron-fuzzy systems are designed to identify the direct and inverse model on the basis of...
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