scholarly journals Application of Wireless Power Transmission Led Lighting System in Propagation of Chrysanthemum and Strawberry

2016 ◽  
Vol 34 (4) ◽  
pp. 617-630
Author(s):  
N.B. NAM ◽  
N.P. HUY ◽  
V.Q. LUAN ◽  
H.T. TUNG ◽  
D.T. NHUT
Keyword(s):  
Power Transmission ◽  
Dry Weight ◽  
Fluorescent Light ◽  
Portable Devices ◽  
Lighting System ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Light Emitting ◽  
Led Lighting

ABSTRACT Wireless power transmission has been recently used to charge batteries in portable devices. This is the first study to combine this technology with light-emitting diodes (WPT-LP) for plant tissue culture application. We also present the comparison of the in vitro growth of chrysanthemum and strawberry plantlets under the new LED lighting system; LED - Uni-Pack (LP) system; LED tube and fluorescent light (FL). The results showed that fresh weight (1.42 g), dry weight (118.67 mg), plant height (5.68 cm), leaf area (3.59 cm2) and chlorophyll content (47.9 μg g-1) of chrysanthemum plantlets under the WPT-LP system were higher than those under FL and LED tube. Similar results were also recorded on the strawberry plantlets. Our results suggested that utilizing WPT-LP system saves the culture space considerably compared with the conventional downward lighting system with fluorescent lamps. The results also indicated that the subsequent growth and development of chrysanthemum and strawberry plantlets derived from WPT-LP system were either equal to or better than those from LP system under LED tube or FL.

Three-phase receiving coil of wireless power transmission system for gastrointestinal robot

2017 ◽  
Vol 31 (32) ◽  
pp. 1750277 ◽  
Author(s):  
Z. W. Jia ◽  
T. Jiang ◽  
Y. Liu
Keyword(s):  
Power Transmission ◽  
Asynchronous Motor ◽  
Animal Experiments ◽  
Transmission Efficiency ◽  
Transmission System ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Power Transmission System ◽  
Three Phase

Power shortage is the bottleneck for the wide application of gastrointestinal (GI) robot. Owing to the limited volume and free change of orientation of the receiving set in GI trace, the optimal of receiving set is the key point to promote the transmission efficiency of wireless power transmission system. A new type of receiving set, similar to the winding of three-phase asynchronous motor, is presented and compared with the original three-dimensional orthogonal coil. Considering the given volume and the space utilization ratio, the three-phase and the three-orthogonal ones are the parameters which are optimized and compared. Both the transmission efficiency and stability are analyzed and verified by in vitro experiments. Animal experiments show that the new one could provide at least 420 mW power in volume of [Formula: see text] with a uniformity of 78.3% for the GI robot.

A method for improving the wireless power transmission efficiency of an endoscopic capsule based on electromagnetic localization and synthesis of magnetic field vector

2010 ◽  
Vol 224 (7) ◽  
pp. 1463-1471 ◽  
Author(s):  
H Li ◽  
G Yan ◽  
P Gao
Keyword(s):  
Magnetic Field ◽  
Power Transmission ◽  
Field Vector ◽  
Magnetic Field Vector ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Electromagnetic Localization ◽  
Endoscopic Capsule

The method of wireless power transmission is an important method in powering wireless medical devices in vivo, but the efficiency is still low, especially when the devices move freely in random positions and orientations. Aiming at powering an endoscopic capsule, a method for improving efficiency of wireless power transmission is proposed, which is based on electromagnetic localization and synthesis of magnetic field vector. By analysing the model and experimenting in vitro, the proposed method is verified, which can improve the efficiency of the wireless power transmission because of accurate localization of the capsule and synthesis of magnetic field vector.

scholarly journals A Working Model for Mobile Charging using Wireless Power Transmission

2018 ◽  
Vol 7 (3.12) ◽  
pp. 584 ◽  
Author(s):  
I Joe Louis Paul ◽  
S Sasirekha ◽  
D Naveen Kumar D ◽  
P S. Revanth
Keyword(s):  
Power Systems ◽  
Power Transmission ◽  
Electronic Devices ◽  
Digital Camera ◽  
Personal Digital Assistant ◽  
Battery Life ◽  
Portable Devices ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Long Run

Portable electronic devices are very popular nowadays. Almost all portable devices are battery powered, meaning that eventually, they all must be recharged–using the wired chargers currently being used. As the usage of these portable electronic devices is increasing, the demands for longer battery life are also increasing. These batteries need to be recharged or replaced periodically. It is a hassle to charge or change the battery after a while, especially when there is no power outlet around. Now instead of plugging in a cell phone, Personal Digital Assistant (PDA), digital camera, voice recorder, mp3 player or laptop to recharge it, it could receive its power wirelessly. The technology for Wireless Power Transmission or Wireless Power Transfer or Transmission (WPT) is in the forefront of electronic development. WPT systems are designed to transmit power without using wires more efficient than transmitting it while using wires. There could be large number of applications for wireless power systems. Hence, in this work, a wireless battery charger has been proposed for mobile phone charging which is expected to eliminate all the hassles with today’s battery technology. The advantage of this device is that it can wirelessly charge up the batteries which can save time and money in a long run for the general public. 

Data Transmission Using Original Coils in Resonant Wireless Power Transmission

2011 ◽  
Vol E94-B (11) ◽  
pp. 3172-3174 ◽  
Author(s):  
Takashi MARUYAMA ◽  
Tatsuya SHIMIZU ◽  
Mamoru AKIMOTO ◽  
Kazuki MARUTA
Keyword(s):  
Data Transmission ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission
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