Syed Zulkarnain Syed Idrus
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Preferred name
Syed Zulkarnain Syed Idrus
Official Name
Syed Zulkarnain, Syed Idrus
Alternative Name
Syed Idrus, Syed Zulkarnain
Idrus, Syed Zulkarnain Syed
Idrus, S. Z.S.
Syed Idrus, S. Z.
Idrus, Syed Zulkarnain Bin Syed
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Scopus Author ID
57215416897

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Conductance property effect towards metamaterial performances for light application

2023-06-12 , Marzuki M.K. , Mohd Aminudin Jamlos , Wan Azani Wan Mustafa , Syed Zulkarnain Syed Idrus

Unit cell is a meta-atom structured to form a metamaterial. The size of the unit cell is related to the frequency of waves. The structure size is smaller than the wavelength of the incident waves. Since light frequency used is Terahertz, the size of unit cell is in nanometer. Unit cell geometrical shape is design using copper and it placed on the Rogers substrate. It designed based on the desired of the researcher. There is no specific design assigned to specific application. The objective in this paper is to exhibit the negative refractive index or negative index material that is capable to bend the light wave. H Shape design has been used widely as a design to manipulate the electromagnetic waves but none of them used for higher frequency such as light frequency. The negative value of material properties obtained from the simulation of the metamaterial at three different part which are at phase=0, real value and imaginary value. CST Microwave Studio 2018 used as a simulation software. The results show all the negative value of material properties obtained at different frequency range. However, the negative value of material properties at phase=0 and imaginary part is obtained at same frequency range. While for real part, the negative value for all material properties occurred at different frequency range. This H-Shape design is suitable to manipulate the lights radiation waves.

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5.8 GHz Circular Polarized Microstrip Feeding Antenna for Solar Panel Application

2020-12-18 , Mohd Aminudin Jamlos , Khairi M. , Ariffah S.N. , Wan Azani Wan Mustafa , Syed Zulkarnain Syed Idrus , Muhammad A.

Circular polarized microstrip antenna have been proposed to establish connection among distributed solar farms. The base station antenna of each solar farm permits more precise on the targeting the radio signal and usually is placed at the open area or at a height place so that the radio waves to be transmitted will not be interrupted. For this paper, circularly polarized microstrip patch antenna (CPMSA) is designs and being reviewed. The patch antenna is based on low-cost, but lossy, and the substrate is made of Rogers RT 5880 (lossy). It consists of a rectangular radiator patch, which is fed by microstrip transmission line. In order to realized circularly polarized antenna, the patch has undergone some design modification to achieve circular rotation. Some technique is proposed to achieve CP antenna. The results indicate that the antenna that uses micro strip feed line technique yields 8.55 dB directive gain, return loss and axial ratio at -24.4 dB and 2.05 dB respectivel. The resonance frequency of 5.8 GHz is being selected since it is suitable used for point to point communication among distributed solar farms that located far from each others.

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Contrast enhancement on pap smear cell images: A comparison

2023-06-12 , Hameed M.S.S. , Wan Azani Wan Mustafa , Syed Zulkarnain Syed Idrus , Mohd Aminudin Jamlos , Alquran H.

Cervical cancer is a common disease that can be carried by women. It is the 3rd leading cause of female cancer in Malaysia and the 4th most common type of cancer for women globally. Referring to the HPV Information Centre in 2018, it is estimated that 1682 women are diagnosed and 944 die from having cervical cells. In 2018, 569, 847 of the 18,078,957 cases were categorised as cervical cancer, which is 3.2%. With the advancement in science and technology, cervical cancer can be detected at an early stage by conducting a Pap smear test. This test will filter abnormal cervical cells and detect precancerous changes in cervical cells based on the colour and shape properties of their nuclei and cytoplasm. The problem is that performing the procedure manually can be time-consuming and cause inconsistencies and errors even further because the cervical cell itself does not show an obvious difference in texture and colour from normal cells. This paper will focus on colour contrast enhancement of the cervical cell using a few methods such as Contrast Stretching (CS), CLAHE, Histogram Equalization (HE), Image Adjustment, and Multi Scale Retinex (MSR). From this research, the cervical cell colour contrast can be enhanced to a better level and the detection of cervical cells can happen faster and more accurately. Hence, the errors in detecting can be reduced again so they can be treated soon.

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Cervical Cancer Classification Using Image Processing Approach: A Review

2020-09-21 , Zhe Wei Low , Wan Azani Wan Mustafa , Mohd Aminudin Jamlos , Syed Zulkarnain Syed Idrus , Hamzari Sahabudin M.

At present, Cervical cancer is the second most common cancer among women around the world. This cancer develops in the cervix; which is the entrance to the uterus. Most of the time, hospital doctors are facing difficulties in identifying cancer cells because the nucleus is sometimes rather difficult to see with the naked eye. Normal cells nuclei are smaller than abnormal cells nuclei. Abnormal nuclei are larger, which sometimes cannot be precisely identified by classifying stages of cervical cancer with the naked eye. This is because each doctor has a different perspective to monitor the classification of cancer stages by observing the nucleus without precisely reducing the size of the classification accuracy. Lately, many researchers have proposed methods for detection and classification of Pap smear images to diagnose cervical cancer. This approach can improve detection and classification accuracy, resulting in better results with accurate data balance and samples. Some patients are found to be in Stage 2 but after retesting they are actually in Stage 4, where the chances of recovery are very low. This is because doctors cannot find the right balance data and unable to take samples properly. This article discusses a comprehensive review of cervical recognition based on segment core and classification.

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A review of detection and classification cervical cell images

2023-06-12 , Nahrawi N. , Wan Azani Wan Mustafa , Syed Zulkarnain Syed Idrus , Mohd Aminudin Jamlos , Ismail S. , Alquran H. , Alqudah A.M.

Cervical cancer is a very prevalent disease among women all over the world. Cervical cancer can form in the cervix cells found in the lower uterus. Women all over the world are at death risk as a result of this type of cancer. Cervical cancer has seven stages: normal intermediate, normal superficial, columnar, mild dysplasia, moderate dysplasia, severe dysplasia, and carcinoma in situ. Doctors in hospitals find it difficult to recognise cancer cells as it is challenging to view a nucleus through the naked eye. A normal cell's nucleus is smaller than an abnormal cell's nucleus. It is possible to calculate the size of the abnormal nucleus with the naked eye in order to assess the stages of cervical cancer. A tool for identifying and quantifying Pap smear cell images to detect cervical cancer has recently been suggested by several researchers. This method has the potential to increase detection and classification precision, resulting in improved results with balanced data and samples. A comprehensive study of nucleus detection cervical cancer classification techniques was conducted in this paper. As a result of the findings, the function database, detection and classification process, and device performance were all investigated for further evaluation.

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H-shape design metamaterial inductance characteristic for THZ application

2023 , Maswani Khairi Marzuki , Mohd Aminudin Jamlos , Wan Azani Wan Mustafa , Syed Zulkarnain Syed Idrus

A meta-atom constructed to make a metamaterial is called a unit cell. The frequency of waves is proportional to the size of the unit cell. The structure's size is less than the incident waves' wavelength. Because the light frequency utilized is Terahertz, the unit cell size is measured in nanometers. Copper is used to create the unit cell geometrical form, which is then deposited on the Rogers substrate. It was created with the researcher's wishes in mind. There is no one-size-fits-all design for any purpose. The purpose of this study is to show how a negative refractive index or a negative index material may bend light waves. The H Shape design has been frequently used to alter electromagnetic waves, but none of them have been successful for higher frequency such as light frequency. The negative value of material characteristics derived from simulations of the metamaterial at three various phases, including phase=0, real value, and imaginary value. As a simulation program, CST Microwave Studio 2018 was employed. All negative values of material attributes acquired at various frequency ranges are shown in the findings. However, for phase=0, the material characteristics are negative, and the imaginary component is acquired across the same frequency range. The negative value for all material attributes happened at different frequencies for the genuine component. This H-Shape design is ideal for controlling light radiation waves.

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