نتایج جستجو برای: lpf
تعداد نتایج: 437 فیلتر نتایج به سال:
The flexural creep behavior of oriented strandboards (OSB) fabricated with mixed high, density hardwood flakes was investigated. Three types of adhesives, liquid phenolic-formaldehyde (LPF), melamine modified urea-formaldehyde (MUF),.and LPF (face)/MUF (core) were chosen in this investigation. The resin contents (RC) used were 3.5 percent and 5.0 percent. The flakes prepared from white oak, sou...
In many applications of Wiener filtering to noise cancellation an external reference noise in— put is required. However, if an external reference is not available, it is still possible to suppress additive noise using a Wiener linear prediction filter (LPF) provided the signal bandwidth is significantly less than the noise bandwidth. The purpose of this paper is to provide an analytical basis f...
Input queueing is becoming increasingly used for high-bandwidth switches and routers. In previous work, it was proved that it is possible to achieve 100% throughput for input-queued switches using a combination of virtual output queueing and a scheduling algorithm called LQF. However, this is only a theoretical result: LQF is too complex to implement in hardware. In this paper we introduce a ne...
Abstract Lotus ( Nelumbo nucifera Gaertn), a kind of perennial aquatic plant, is widely cultivated and consumed by people in Asian countries. plumule flavonoids (LPF) have been recognized as hypoglycemic agent. LPF was optimally obtained using novel ultrasonic-microwave assisted synergistic extraction (UMSE) method response surface methodology (RSM) on the basis results single-factor experiment...
Abstract — Input queueing is becoming increasingly important for high-bandwidth switches and routers. In previous work, we proved that it is possible to achieve 100% throughput for input-queued switches using a cell-by-cell scheduling algorithm called LQF. However, LQF is too complex to implement in hardware. In this paper we introduce a new algorithm called Longest Port First (LPF), which is d...
This paper presents a new approach based on the use of Current Steering (CS) technique for design fully integrated Gm–C Low Pass Filters (LPF) with sub-Hz to kHz tunable cut-off frequencies and an enhanced power-area-dynamic range trade-off. The proposed has been experimentally validated by two different first-order single-ended LPFs designed in 0.18 µm CMOS technology powered 1.0 V single supp...
The design procedure of a compact ultra-wideband (UWB) stepped impedance resonator (SIR) low pass filter (LPF), is presented in this paper. A SIR LPF with 15.5 GHz cutoff frequency miniaturized by meander line technique is designed and it is shown that offsetting the stepped impedance resonators, as well as indenting the tap location greatly improve rejection bandwidth. By cascading multiple fi...
We propose two novel low-pass filter (LPF) structures that have generated additional attenuation poles from applying spur-lines to typical open-stub LPFs. The first structure has the added serial lines, and second parallel open stub. From characteristic analyses of filters with proposed design, it was confirmed length spur-line an important variable for controlling stopband bandwidth depth. typ...
Abstract—A novel low-pass filter (LPF) is designed and fabricated based on stepped-impedance resonator (SIR). Semi-circles are used to reduce the size of the filter. The open-circuited stubs are used in the filter, and its simplified equivalent circuit is also proposed. The measured 3 dB cutoff frequency is 5.2GHz with no more than 0.3 dB ripple level in the pass-band. From 5.5 to 14 GHz, the i...
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