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All Journal Komunikasi Fisika Indonesia TELKOMNIKA (Telecommunication Computing Electronics and Control) Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Journal of the Indonesian Mathematical Society Jurnal Sains Matematika dan Statistika Proceeding of the Electrical Engineering Computer Science and Informatics Seminar Nasional Teknologi Informasi Komunikasi dan Industri Jambura Journal of Mathematics JURNAL MATHEMATIC PAEDAGOGIC INSIST (International Series on Interdisciplinary Research) Indonesian Journal of Electrical Engineering and Computer Science Unri Conference Series: Community Engagement Pattimura Proceeding : Conference of Science and Technology Science, Technology, and Communication Journal Journal of Mathematics, Computation and Statistics (JMATHCOS)
Syamsudhuha Syamsudhuha
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics Other

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Journal : science technology and communication journal

 1 
On (f, g)-derivation in BCH-algebra Afriastuti, Sherly; Gemawati, Sri; Syamsudhuha, Syamsudhuha
Science, Technology and Communication Journal Vol. 1 No. 3 (2021): SINTECHCOM Journal (June 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i3.196

Abstract

BCH-algebra is a non-empty set with the binary operation * and the constant 0, and statisfying the certain axioms. A mapping of d from X to itself is said to be a derivation in BCH-algebra if d is both (l, r)-derivation and (r, l)-derivation in BCH-algebra, where X is BCH-algebra. This article discusses the concepts of (l, r)-(f, g)-derivation, (r, l)-(f, g)-derivation, and (f, g)-derivation in BCH-algebra, and investigates the properties (l, r)-(f, g)-derivation, (r, l)-(f, g)-derivation and (f, g)-derivation in BCH-algebra.
t-derivations in BP-algebras Siswanti, T. Fuja; Gemawati, Sri; Syamsudhuha, Syamsudhuha
Science, Technology and Communication Journal Vol. 1 No. 3 (2021): SINTECHCOM Journal (June 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i3.199

Abstract

BP-algebras is a non-empty set (X, *, 0) with the binary operation “*” satisfies the axioms (BP1) x * x = 0, (BP2) x * (x * y) = y, (BP3) (x * z) * (y * z) = x * y for all x, y, z = X . In this paper, we define the concept of (l, r) and (r, l) t-derivation in BP-algebra and investigate their properties. Based on the concepts of (l, r) and (r, l) t-derivation in BP-algebra, the properties of t-derivation in BP-algebra are constructed.
Design and optimization of square SRR metamaterial-based microstrip antenna for wideband biomedical sensing Saktioto, Saktioto; Angraini, Cici Yana Tasya; Soerbakti, Yan; Rini, Ari Sulistyo; Syamsudhuha, Syamsudhuha; Anita, Sofia
Science, Technology, and Communication Journal Vol. 6 No. 1 (2025): SINTECHCOM Journal (October 2025)
Publisher : Lembaga Studi Pendidikan dan Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v6i1.331

Abstract

The continuous advancement in wireless biomedical technology necessitates the development of compact, high-performance antennas capable of operating across a wide frequency range. In this context, this study reports the design and optimization of a square split-ring resonator (SRR) metamaterial-based microstrip antenna to enhance bandwidth and gain characteristics for wideband biomedical sensing. The proposed metamaterial, composed of one to four square SRR unit cells, was modeled using copper patches on an FR-4 substrate with a dielectric constant of 4.3 and simulated in CST Studio Suite 2019 over a frequency range of 0.009 – 9 GHz. The electromagnetic behavior of the structure was analyzed through S-parameter characterization, and the Nicolson–Ross–Weir (NRW) retrieval method was applied to extract the effective constitutive parameters, including relative permittivity, relative permeability, and refractive index. The optimized four-cell SRR configuration demonstrated double-negative (DNG) characteristics, exhibiting a relative permittivity of -153.65, a relative permeability of -8.85, and a refractive index of -9.48, thereby confirming the negative-index properties essential for enhanced electromagnetic field confinement and energy concentration. Integration of the optimized metamaterial into the microstrip antenna structure yielded significant performance improvement, achieving a return loss of -48.31 dB, bandwidth of 4.37 GHz, and gain of 2.23 dBi. These results substantiate that the square SRR metamaterial contributes to superior impedance matching and field localization, making the proposed antenna architecture highly promising for wideband biomedical sensing and potential internet of things (IoT) healthcare implementations.
Co-Authors Afrianto Daud Afriastuti, Sherly Ahmad Jamaan Andika Thoibah Anggraini, Wresni Angraini, Cici Yana Tasya Anita, Sofia Anne Mudya Yolanda Arisman Adnan Asral, Asral Ayunda Putri Basdyo, Doni Budi Astuti Dadang Syarif Sihabudin Sahid Daqiqil Id, Ibnu Dedi Irawan Dedi Irawan Defrianto Defrianto Dian Putri Oktavia, Dian Putri Divo Dharma Silalahi Doni Basdyo Dwi Hanto Erman Taer Gustriza Erda Habibis Saleh Haryana Hairi Haryana Hairi Ihda Hasbiyati Indah Purnama Putri Indra, Zul Iswadi HR Juni Lesti Nengsih Khairunnisa, Siska Khairunnissa, Khairunnissa L Zakaria Leli Deswita M. D. H Gamal M. Imran Mirza Hardian Nurhayati, Nurhayati Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa, Okfalisa Putri, Ayuni Rahmad Kurniawan Rahmondia Nanda Setiadi REFI REVINA Rina Amelia Rina Amelia Rini, Ari Sulistyo Riska Yeni Riski Amelia, Riski Romi Fadli Syahputra Ros Meri Rustam Rustam S. P. Dewi Saktioto Saktioto Saktioto, Saktioto Saputra, Hendy Sibuea, Nuraini Siswanti, T. Fuja Soerbakti, Yan Soerbakti, Yan Sofia Anita Sri Gemawati T, Masrina Munawarah Tengku Emrinaldi Titi Solfitri Vepy Asyana Wahyu Candra Wresni Anggraini Yan Soerbakti Yan Soerbakti Yanti Andriyani Yennita Y Yolanda Rati Yoli Zairmi Z Bahri Zairmi, Yoli