The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
High voltage SF6 circuit breaker must meet the breaking requirement for large short-circuit current, and ensure absence of breakdown after breaking small current. A 126kV high voltage SF6 circuit breaker was used as the research object in this paper. Based on the calculation results of non-equilibrium arc plasma material parameters, the distribution of pressure, temperature and density were calculated...
With the wide application of Lithium-ion (Li-ion) batteries in electric vehicles and unmanned aerial vehicles (UAVs), it is becoming more important and urgent to estimate the battery state to extend the operation range of electric vehicles or UAVs. Existing state of charge (SOC) estimation methods are highly model-based, which are difficult to be implemented in different scenarios. In this paper,...
The endovascular surgery benefits patients due to the miniature wound and fast healing, but to achieve this kind of goal need the doctor with superb skill in order to not made damage to the patients. A training system is desperately in need. The training system is cooperated with VR simulator system, which could simulate the movement of the catheter. To get the novice surgeons get trained, a controlling...
In teleoperated robot-assisted catheter intervenetional surgery, haptic feedback allows the interventionalist to perceive the remote contact force between the catheter and blood vessel. In this research, the haptic feedback in axial direction has been provided to the operator in master site to guide the remote catheter insertion. A remote catheter navigation system was presented, and the MR (Magnetorheological)...
A robotically assisted catheterization system can obviously reduce the radiation exposure to the surgeon and lesson the fatigue caused by standing for long time in protective clothing. However, few designs have taken the collision protection function of a catheter manipulator into consideration. Additionally, limited research has been conducted in the damage of the clamping mechanism to the catheter...
In this paper, a constant conversion factor PI is proposed for retrieval of Precipitable Water Vapor (PWV) from Global Positioning System (GPS) signal delay in Tropical region. The factor PI is calculated using water-vapor weighted mean temperature (Tm). For Tropical region, Tm doesn't vary much and thus range of PI values is also small. Therefore, using the data obtained from 5 different sites of...
In this paper, gaseous attenuation along a Ka-band slant path link is investigated and analyzed for the tropical country of Singapore. The signal is chosen at a frequency of 18.9 GHz with an elevation angle 44.5°. In order to estimate the gaseous attenuation along this slant path, Recommendation ITU-R P.676-10 model is applied. Four-year gaseous attenuation is processed and analyzed. The results show...
In recent years, the introduction of VR/AR technologies has drawn great attention from all over the world. Such technologies have been applied to multiple fields, including automotive telematics and culture creatives. As part of culture industry, cultural inheritance may also be significantly stimulated by technology integration, including regional and international culture renaissance as well as...
The “joint assignment” is a creative bachelor education project for Biomedical Engineering (BME) in Shanghai University (SHU), China. The objective of this project is to improve students' capabilities in design thinking and teamwork through practices in the process of the design and development of complex medical product. As the first step, a pilot project “design and development of intelligent nursing...
The navigation of a mobile robot is a central problem in robotics research. A smart wearable device called Google Glass provides a new way to achieve the human and machine interaction. This paper presents a navigation strategy for NAO humanoid robot via head gestures based on global and local live videos displayed on a Google Glass. We develop a module to establish connection from the Google Glass...
We prepared CuInSe2 nanowire (NW) arrays in an electrolyte at temperatures ranging from 272 K to 318 K by using pulse electrodeposition techniques and an anodized aluminum oxide template. We photographed the detailed microstructures of CuInSe2 nanowire arrays with high-resolution transmission electron microscopy (HRTEM); the images showed the polycrystalline nature of the CuInSe2 nanowires made in...
This study develops a vehicular platoon control system (VPCS) based on the combination of car-following model and leader-follower model under connected environment. In particular, first, a three-level framework including information collection, information processing and information release is proposed to design the control strategy. Then, the car-following model is used to capture the characteristics...
In this paper, we present a novel wearable flexible supercapacitor with the conductive carbon-nanotube (CNT)/fabric electrode and PVA/H3PO4 solid-state electrolyte, which is cost-effective and can be easily mass produced. Two kinds of fabric as the electrode substrates, cotton knitting fabric and polyester-fiber knitting fabric, are used for comparison respectively. The flexible fabric-based supercapacitors...
This paper reports a novel multi-functional self-powered pressure sensor with hierarchical wrinkle structure which is able to detect pressure as well as harvest the mechanical energy. Due to the utilization of hierarchical wrinkle structure, the device shows high sensitivity of 2.0 kPa-1 with the excellent response performance of 0.15 ms (rise-time) and 0.7 ms (release-time), respectively. In addition,...
This paper reports a novel active body motion sensor with PDMS-AgNWs structure, which is not only highly sensitive to detect body static gestures by strain-resistance response, but also self-powered to recognize both body and prosthesis motion based on triboelectrification and electrostatic induction synchronously for the first time. By attaching the sensor on human skin or robot surface directly,...
This work presents a self-powered liquid flow and bubble detection sensor based on the effect of contact-electrification between liquid and solid interface. Charge is driven by the electrostatic induction to flow across outer load without power supply. Single-step fluorocarbon plasma treated PDMS with wrinkle pattern is employed to contact with liquid, which could enhance the electric performance...
This work reports a novel stretchable thin-film generator based on electrification for effectively harvesting body motion energy. It has two working modes, the folding mode and the contact-separation (C-S) mode, under the same circuit connection. Electrospinning PU nanofibers are employed to integrate electrodes, making it not only flexible but also highly stretchable up to 100%. Micro-patterned PDMS...
In this paper, we report a large-area, microporous polydimethylsiloxane (M-PDMS) membrane with maximum enhancement of fracture strain by 210% over the bulk PDMS (B-PDMS) film. The three-dimensional microporous structures, which contributes to the stretchability enhancement by underlying physical analysis, are fabricated by removing monodisperse polystyrene (PS) sphere arrays in PDMS matrix. Integrated...
In this paper, we present a novel fabrication for freestanding solid-state micro-supercapacitor (MSC) with interdigital carbon nanotube (CNT)/nanofibers electrode layer, gold current collector and the solid-state electrolyte-substrate, which, for the first time, combines electrolyte transferring with laser patterning process. With the in-planar electrode and electrolyte-substrate layout, the dimension...
The casualties caused by emergencies increased rapidly in recent years, more and more scholars began to make an intensive study of this field. From the subjective judgment to objective measurement it is a new attempt to use the visualization software to study the knowledge base, development context and recent research with the downloaded data from the database such as "Web of Science". Based...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.