Fifteen novices completed a Zentangle task while their brain activity was measured with electroencephalography (EEG) and their concentration emotional state, stress, and anxiety levels were evaluated with questionnair...
详细信息
Fifteen novices completed a Zentangle task while their brain activity was measured with electroencephalography (EEG) and their concentration emotional state, stress, and anxiety levels were evaluated with questionnair...
Fifteen novices completed a Zentangle task while their brain activity was measured with electroencephalography (EEG) and their concentration emotional state, stress, and anxiety levels were evaluated with questionnaires. The study found increased activity in theta, alpha, beta, and gamma ranges associated with relaxation, focus, and mental activity. Participants reported improved concentration, emotional state, and reduced stress and anxiety levels after completing the task, suggesting the potential of Zentangle to enhance cognitive and emotional well-being.
The proposed antenna with a size of 90 mm x 90 mm, and the ground portion is 64 mm x 64 mm, which material is FR4 glass epoxy substrate with the thickness of 1.6 mm, relative permittivity of 4.3 and loss tangent of 0....
详细信息
ISBN:
(数字)9789463968119
ISBN:
(纸本)9798350359497
The proposed antenna with a size of 90 mm x 90 mm, and the ground portion is 64 mm x 64 mm, which material is FR4 glass epoxy substrate with the thickness of 1.6 mm, relative permittivity of 4.3 and loss tangent of 0.023, consists of four modifieddipole elements and four power dividers, as shown in Figure. 1. For the multi-band and broadband operation, three dipole antennas were shunted to be a dipole element. The electrical-length of the dipole element can be determined from the one quarter-wave length at the 2.45 GHz, 5.5 GHz and 6.525 GHz, for covering 2400 MHz-2500 MHz, 5150 MHz-5850 MHz and 5925 MHz-7125 MHz. In order to operates in various modes such as normal mode and axial mode, the modified four port triple-band microstrip series power divider was designed. In normal mode, it radiates horizontally polarized waves where as in axial mode, it radiates circularly polarized waves. The radiated patterns of the proposed antenna as shown in Figure. 2. The features of the proposed antenna are shown in the Table I. Impressive radiated gains and efficiencies are obtained.
Vehicles are one kind of human’s transport tools that can carry us to anywhere. Safety is an important issue for vehicle applications. Tire is an important element of the vehicle, because the vehicle only has four po...
详细信息
ISBN:
(纸本)9781665447324
Vehicles are one kind of human’s transport tools that can carry us to anywhere. Safety is an important issue for vehicle applications. Tire is an important element of the vehicle, because the vehicle only has four points connect on the road through tires. Many accidents are caused the tire problems. There are more and more researches in intelligent tire base on safety issues. Tire pressure monitor system (TPMS) can be called an application of intelligent tires that are currently a very popular tire monitoring device, it provides pressure and temperature information for drivers. The information can let drivers understand their tire’s status through simple information. Not only pressure and temperature can affect safety, but also tire’s use mileage. The tire wear has some relation to safety. The mileage has been defined by tire spec. The different tires have different specs and the tire wear status cannot be defined clearly. The wear status is hard to get that is because the vehicle condition, use scenario and situation are complicated. drivers can’t understand how many miles did the tire use and what status the tire. This paper proposed a method to estimate and monitor tire mileage and wear base on simple sensors. G-sensor and hall sensors are common sensors in applications. The method will use these simple sensors to implement the method. drivers can accord information to evaluate the tire status anddecide the timing to replace the tire. It can help drivers to increase safety during the drive and provide a solution to support intelligent tire function.
Background: A dual-function phantom designed to quantify the apparent diffusion coefficient (AdC) in different fat contents (FCs) and glass beaddensities (GBds) to simulate the human tissues has not been documented y...
详细信息
Background: A dual-function phantom designed to quantify the apparent diffusion coefficient (AdC) in different fat contents (FCs) and glass beaddensities (GBds) to simulate the human tissues has not been documented yet. We propose a dual-function phantom to quantify the FC and to measure the AdC at different FCs anddifferent GBds. Methods: A fat-containing diffusion phantom comprised by 30 glass-bead-containing fat-water emulsions consisting of six different FCs (0, 10, 20, 30, 40, and 50%) multiplied by five different GBds (0, 0.1, 0.25, 0.5, and 1.0 g/50 mL). The FC and AdC were measured by the “iterative decomposition of water and fat with echo asymmetry and least squares estimation-IQ,” IdEAL-IQ, and single-shot echo-planar diffusion-weighted imaging, SS-EP-dWI, sequences, respectively. Linear regression analysis was used to evaluate the relationship among the fat fraction (FF) measured by IdEAL-IQ, GBd, and AdC. Results: The AdC was significantly, negatively, and linearly associated with the FF (the linear slope ranged from -0.005 to -0.017, R2 = 0.925 to 0.986, all p < 0.001). The slope of the linear relationship between the AdC and the FF, however, varied among different GBds (the higher the GBd, the lower the slope). AdCs among emulsions across different GBds and FFs were overlapped. Emulsions with low GBds plus high FFs shared a same lower AdC range with those with median or high GBds plus median or lower FFs. Conclusions: A novel dual-function phantom simulating the human tissues allowed to quantify the influence of FC and GBd on AdC. Relevance statement: The study developed an innovative dual-function MRI phantom to explore the impact of FC on AdC variation that can affect clinical results. The results revealed the superimposed effect on FF and GBddensity on AdC measurements. Key points: • A dual-function phantom made of glass beaddensity (GBd) and fat fraction (FF) emulsion has been developed. • Apparent diffusion coefficient (AdC) values
Background: To evaluate the effect of the weighting of input imaging combo and AdC threshold on the performance of the U-Net and to find an optimized input imaging combo and AdC threshold in segmenting acute ischemic ...
详细信息
作者:
Abhishek KumarR. dhanuskodiR. KaliappanK. NandakumarAbhishek Kumar teaches design philosophies at Anant National University
Ahmedabad. He earned his Ph.D in Management from Pondicherry University. He is an Economics graduate from Calcutta University and MBA from BIM Trichy. He has published more than 20 articles in reputed international journals has authored two books written articles and columns for newspapers and is quoted on issues related to leadership and marketing by various media platforms. His research work comprises construction of brand personality scale for media aesthetics and phenomenological design. His recent publications are on philosophy of a photograph hermeneutic reality of product and on philosophy of intimate spaces. R. Dhanuskodi has nearly 40 years of R&D experience at BHEL
India in technical areas applicable for thermal power plants. He is a life member of The Institution of Engineers (India) and The Combustion Institute. He has won two BHEL’s Excel awards under the best author category for technical papers. He has visited France Netherlands and Germany under Indo-Europe Clean Coal Development Program. He has guided 42 UG PG and PhD project works. He holds 11 patents 40 copyrights and 2 design registrations. He has presented papers in 20 conferences and published in 10 national and international journals. R. Kaliappan completed his bachelors in electrical and electronics engineering and Masters in Computer Science. He has 36 years of research experience in different fields of power generation and power plant subsystems such as heat transfer studies on boiler circulation
efficiency improvements of boiler subsystems product improvements/ enhancements and setting up test facilities for research studies. He has published a number of technical papers on MHD power generation and heat transfer studies in various national and international journals. He has more than 25 patents and copyrights on products development related to power boilers. He has won BHEL’S gold medal for product development for Smart Wall Blowing system. K. Nandakumar
This paper proposes a patch antenna for Radio Frequency Identification (RFId) applications in the 900 MHz (902-928 MHz) Ultra High Frequency (UHF) band. To achieve optimal impedance matching and 10-dB operating bandwi...
详细信息
ISBN:
(纸本)9781479985449
This paper proposes a patch antenna for Radio Frequency Identification (RFId) applications in the 900 MHz (902-928 MHz) Ultra High Frequency (UHF) band. To achieve optimal impedance matching and 10-dB operating bandwidth at the desired band, the L-shaped probe feed technique is employed as the feeding mechanism of the proposed antenna. In this case, a semi-circular parasitic patch and a slit are loaded into the main radiating triangular patch, so that good circularly polarized (CP) radiation can be generated from the proposed patch antenna. Here, 10-dB impedance bandwidth and 3-dB AR bandwidth of 19.88% (847-1034 MHz) and 4.3% (891-930 MHz) are achieved. Furthermore, stable gain variation of approximately 7 dBic is also exhibited across the desired RFId UHF band.
Four novel ideas are proposed in this paper to integrate an active RFId tag with thermal convection angular accelerometer on an engineering plastic substrate, thus the device is a wireless sensor. The first innovative...
详细信息
Four novel ideas are proposed in this paper to integrate an active RFId tag with thermal convection angular accelerometer on an engineering plastic substrate,thus the device is a wireless *** first innovative idea is ...
详细信息
Four novel ideas are proposed in this paper to integrate an active RFId tag with thermal convection angular accelerometer on an engineering plastic substrate,thus the device is a wireless *** first innovative idea is that this device is without any movable parts,so it is very *** second new idea is that it is made on an engineering plastic substrate,such as polyimide,the thermal conductivity is much lower than silicon,so it can save more power and very useful for mobile *** third new idea is that the xenon gas is applied in the chamber for heat convection instead of CO used in the traditional thermal convection *** dioxide can produce oxidation effect to the heater and thermal sensors,while the inert gas xenon will *** fourth new idea is the most powerful one to integrate with an active RFId tag on the same substrate,thus it is very useful for mobile operation,and is very easy for usage and *** one considers sensitivity as the first priority,then choose the floating structure(233°C/(rad/s)).On the other hand,if the response speed is the requirement,then the non-floating structure is better(70μs).
暂无评论