The problem of identifying disturbance lines in printed circuit boards is addressed. Identification is achieved by estimating the disturbance frequency and the separation distance between the coupled lines. Frequency estimation uses a wavelet coefficients thresholding method to reconstruct the interference caused by the disturbance line. The separation distance is computed using two empirical l...

In the furniture and construction industries, there is increased demand for lightweight, high-performance, and low-maintenance materials with specific properties. Increased demand necessitates testing of new and composite materials to find a viable alternatives to classical materials. In this study, two different types of cork layered plywood composites (plywood board with a cork core (PLYW-K1)...

The board of directors is the head of the supervisor and controller in the organization's system. Since the emergence of widespread changes in the business environment has led organizations to take advantage of diverse specializations and skills, changing the composition of the board and the diversity of vision and perceptual skills in their composition has doubled.One of the indicators o...

This paper presents a modified power factor correction (PFC) ON/OFF control and three-dimensional (3D) printed circuit board (PCB) design for high-efficiency high-power density onboard charger (OBC). By alternately operating one of two boost modules the PFC stage at 50% or less load condition, proposed can reduce load-independent loss stage, such as core capacitor charging switches. It enables ...

A through-thickness ultrasonic transmission (UT) in oriented strandboard (OSB) was done to compare the performance of direct-contact (DC) and non-contact (NC) ultrasonic systems. The DC measurements produced a higher velocity than the NC system for a given board type, possibly due to transducer’s compression over liquid couplant in the DC method. The UT responses correlated nonlinearly to sampl...

This research was conducted to determine the quality of particle board using raw material empty palm oil bunches with different compositions. Oil is a plantation crop that has an important role in Indonesia today. plant produces vegetable and its derivative products. The processing Empty Palm Bunches (EFB) into as strategy for utilizing solid waste from carried out March - June 2020. Quality te...