Search Results - (unity OR units)-using frequency

A new wide-band double-negative metamaterial for C- and S-band applications by Hossain, M.I., Faruque, M.R.I., Islam, M.T., Ullah, M.H.

“…Four different unit cells with varying design parameters are analyzed to evaluate the effects of the unit-cell size on the resonance frequencies of the metamaterial. …”
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To study the effect of capacitor, resistor and pre-scalar unit towards frequency counter / Gabreal Johnny Gabil by Gabil, Gabreal Johnny

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On convergence of the foreign exchange market: some empirical evidence based on time and frequency-domain analysis by Baharumshah, Ahmad Zubaidi, Tan, Hui Boon

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Model predictive control of bidirectional isolated DC-DC converter for energy conversion system by Akter P., Uddin M., Mekhilef S., Tan N.M.L., Akagi H.

“…Cost functions; DC transformers; Electric load flow; Electric power factor; Energy conversion; Energy transfer; High frequency transformers; HVDC power transmission; MATLAB; Model predictive control; Power control; Predictive control systems; Reactive power; Voltage control; Bidirectional DC-DC converters; Bidirectional isolated dc-dc converter; Energy conversion systems; Full-bridge dc-dc converters; Power conversion systems; Predictive control; Predictive control algorithm; Unity power factor; DC-DC converters…”

Design and analysis of frequecy selective surface by Audu, Babagana

“…The Frequency Selective Surface (FSS) is a two-dimensional periodic array of planar arrays made up of metal patches or aperture units. …”
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Integrated Circuit Design of a Power Management Unit for Radio Frequency Identification Transponder by Saraswathi Rajasandaran

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WATER WAVE AND ENERGY GENERATOR by MOHAMED YOUSUFF, FARWIZAH

“…Piezoelectric unit create energy through adding mass and by varying frequencies. …”
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Electrically enhanced graphene-metal plasmonic antenna for infrared sensing by Ullah, Z., Nawi, I., Witjaksono, G., Tansu, N., Khattak, M.I., Junaid, M., Usman, F.

“…Moreover, the dynamic tuning of the resonance frequency and optical absorption is achieved by increasing the chemical potential of graphene layers through gate voltage. …”
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Modular structured multilevel inverter as active power filter with unified constant-frequency integration control by Lim, Pei Yi

“…The proposed configuration of MSMI APF with UCI control will be able to achieve unity power factor correction and low Total Harmonic Distortion (THD). …”
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A mutual coupled concentric crossed-Line split ring resonator (CCSRR) based epsilon negative (ENG) metamaterial for Tri-band microwave applications by Shahidul Islam M., Islam M.T., Mohd Sahar N., Rmili H., Amin N., Chowdhury M.E.H.

“…The proposed CCSRR unit cell structure exhibits epsilon negative characteristics in the frequency ranges of 6.53 GHz to 6.96 GHz, 10.63 GHz to 10.91 GHz, and 13.37 GHz to 13.40 GHz. …”

DNA mismatch repair and CD133-marked cancer stem cells in colorectal carcinoma by Cheah, Phaik Leng, Li, Jing, Looi, Lai Meng, Teoh, Kean Hooi, Ong, Diana Bee Lan, Arends, Mark J.

“…When stratified according to MMR status, dMMR cases showed a lower frequency of CD133 expression (42.9%) and CD133 score (mean ± SD D 2.5 ± 3.6 units) compared with pMMR tumors on the right (frequency D 84.6%; mean score ± SD D 9.2 ± 5.0 units) as well as pMMR tumors on the left (frequency D 90.0%; mean score ± SD D 9.6 ± 5.3 units) (p < 0:05). …”
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Parents' role in cultural socialisation of ethnic groups in Malaysia by Ting, Su Hie

“…The results showed that the students reported relatively higher frequency of socially acceptable aspects of cultural socialisation than "negative aspects". …”
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Effect Of Channel Length Variation On Analog And RF Performance Of Junctionless Double Gate Vertical Mosfet by Salehuddin, Fauziyah, Roslan, Ameer Farhan, Kaharudin, Khairil Ezwan, Mohd Zain, Anis Suhaila

“…On the other hand, the unity gain cut-off frequency (fT) and the gain-band-width product (GBW) tremendously improved by ~93% and ~74% respectively as the channel length of the device is scaled from 12 nm to 9 nm.…”
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Resonance frequency estimation in series-to-series inductive power transfer by Adam, Ismail, Alanazi, Meshari D, Khan, Sheroz, Yaacob, Mashkuri, Nordin, Anis Nurashikin, Mansor, Hasmah, Habaebi, Mohamed Hadi

“…The setup includes a display unit and multiple input switches for manually adjusting frequency settings, as well as activating and deactivating the DC-to-AC converter in 10Hz, 100Hz, and 1kHz frequency steps. …”
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Optimizing Air Handling Unit Induction Motor Frequency Predictions: Evaluating and Advancing Forecasting Techniques with a Modified Chen's Fuzzy Time Series Model by Yaddarabullah, Alviando, Yoga, Lestari, Dewi, Aedah, Abd Rahman, Saad, Amna

“…The purpose of this study is to introduce a novel approach to predict induction motor frequency adjustments in Air Handling Units (AHU). …”
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High frequency H-bridge inverter circuit for induction heaing rice cooker by Ishak @ A. Manap, Zulkarnain

“…This thesis describes the development of high frequency controller unit with H-bridge inverter circuit for induction heating rice cooker. …”
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Effect of wind energy unit availability on power system adequacy by Kadhem, Athraa Ali, Abdul Wahab, Noor Izzri, Aris, Ishak, Jasni, Jasronita, Abdalla, Ahmed N.

“…The output power from the WECS may also get affected by the unavailability of wind generating units for a considerable period of time. The impact of wind turbine units on the reliability of power generating systems and operating reserves is explained in this paper, while considering wind power units that are frequently unavailable and for a considerable amount of time. …”
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Improving gain of ultra-wideband planar antennas: A grounded frequency-selective surface reflector by Al Gburi, Ahmed Jamal Abdullah, Zakaria, Zahriladha, Alhassoon, Khaled, Mohd Ibrahim, Imran, Jamil Alsayaydeh, Jamil Abedalrahim

“…This paper introduces a method to enhance the gain of ultra-wideband (UWB) planar antennas by employing a grounded frequency-selective surface (FSS) as a reflector. The grounded FSS reflector comprises square patch structures (SPSs) of unit cells with a complete ground plane. …”
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Dynamic absorption enhancement and equivalent resonant circuit modeling of tunable graphene-metal hybrid antenna by Ullah, Z., Nawi, I., Witjaksono, G., Tansu, N., Khattak, M.I., Junaid, M., Siddiqui, M.A., Magsi, S.A.

“…However, low optical absorption hinders its potential applications, and their performance is limited due to fixed resonance frequency. In this article, a novel gate tunable graphene-metal hybrid plasmonic antenna with stacking configuration is proposed and investigated to achieve tunable performance over a broad range of frequencies with enhanced absorption characteristics. …”
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Easily deployable, multi-functional low frequency FS radar network / Nur Emileen Abd Rashid … [et al.] by Abd Rashid, Nur Emileen, Othman, Kama Azura, Ismail Khan, Zuhani, Zakaria, Nor Ayu Zalina

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