24   Artículos

 
en línea
Faris H. Almansour, Geamel H. Alyami and Hussein N. Shaman    
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Jun Li, Hongchao Wang, Simin Li, Liang Chen and Qiqian Dang    
To extract the weak fault features hidden in strong background interference in the event of the early failure of rolling bearings, a two-stage based method is proposed. The broadband noise elimination ability of an adaptive morphological filter (AMF) and... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Juan M. Carrillo and Carlos A. de la Cruz-Blas    
A bootstrapping technique used to increase the intrinsic voltage gain of a bulk-driven MOS transistor is described in this paper. The proposed circuit incorporates a capacitor and a cutoff transistor to be connected to the gate terminal of a bulk-driven ... ver más
Revista: Journal of Low Power Electronics and Applications    Formato: Electrónico

 
en línea
Faroq Razzaz, Saud M. Saeed and Majeed A. S. Alkanhal    
In this paper, ultra-wideband bandpass filters using tapered transmission line resonators are presented. The proposed filters are based on short-circuited tapered transmission line stubs. The use of tapered transmission resonators resulted in a noticeabl... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Nan Zhang, Xiaolong Wang, Chunxi Bao, Bin Wu, Chun-Ping Chen, Zhewang Ma and Geyu Lu    
In this paper, a novel synthetization approach is proposed for filter-integrated wideband impedance transformers (ITs). The original topology consists of N cascaded coupled line sections (CLSs) with 2N characteristic impedance parameters. By analyzing th... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Brandon Rumberg, Spencer Clites, Haifa Abulaiha, Alexander DiLello and David Graham    
Floating-gate (FG) transistors are a primary means of providing nonvolatile digital memory in standard CMOS processes, but they are also key enablers for large-scale programmable analog systems, as well. Such programmable analog systems are often designe... ver más
Revista: Journal of Low Power Electronics and Applications    Formato: Electrónico

 
en línea
Emanuel R. de Carvalho, Richelle J. M. Hoveling, Cornelis J. F. van Noorden, Reinier O. Schlingemann and Maurice C. G. Aalders    
Application of functional imaging in ophthalmology requires efficient imaging techniques that can detect and quantify chromophores to visualise processes in vivo. The aim of the present study was to develop and evaluate a fast and affordable imaging syst... ver más
Revista: Instruments    Formato: Electrónico

 
en línea
Trieu-Vuong Dinh, Ji-Won Ahn, In-Young Choi and Jo-Chun Kim    
In this study, two novel narrow bandpass filters (BPF) obtained from the high-resolution transmission molecular absorption (HITRAN) data for a carbon monoxide (CO) non-dispersive infrared (NDIR) analyzer were investigated and compared with a commercial B... ver más
Revista: Atmosphere    Formato: Electrónico

 
en línea
Yi-Jun Jen and Meng-Jie Lin    
A multilayer narrow bandpass filter that consists of silver and silicon thin films is designed using the admittance tracing method. Owing to the low loss of silicon in the infrared range, the peak transmittance at a wavelength of 950 nm exceeds 85%. To e... ver más
Revista: Coatings    Formato: Electrónico

 
en línea
Pinggui Wang, Xiuhua Fu, Des Gibson, Lewis Fleming, Sam Ahmadzadeh, Cheng Li, Manu Muhiyudin, Shigeng Song, David Hutson, David Moodie, Calum MacGregor and Matthew Steer    
In this work, performance improvements are described for a low-power consumption non-dispersive infrared (NDIR) methane (CH4) gas sensor using customised optical thin film bandpass filters (BPFs) centered at 3300 nm. BPFs shape the spectral characteristi... ver más
Revista: Coatings    Formato: Electrónico

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