Article Per Year (5 Year)
p-Index From 2021 - 2026
3.452
P-Index
This Author published in this journals
All Journal Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Ilmu dan Teknologi Kelautan Tropis Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Ners Indonesia Jurnal Ilmu Perairan (Aquatic Science) Jurnal Tapis : Jurnal Teropong Aspirasi Politik Islam Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Jurnal Akuatika Indonesia Jurnal Penelitian Pendidikan IPA (JPPIPA) Dinamisia: Jurnal Pengabdian Kepada Masyarakat Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Diklat Review : Jurnal manajemen pendidikan dan pelatihan Health Care : Jurnal Kesehatan Jurnal Zona Journal of Contemporary Islamic Education Tatsqifiy: Jurnal Pendidikan Bahasa Arab International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Dinamika Lingkungan Indonesia CANANG: Jurnal Pengabdian Masyarakat Riau Law Journal EcoNews ANDREW Law Journal Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Nofrizal Nofrizal
Fakultas Perikanan Dan Ilmu Kelautan, Universitas Riau, Pekanbaru
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary Other

Published : 54 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 54 Documents
Search

 2   3   4   5   6 
Corrosion Inhibition Of Mild Steel In 1m HCL By Catechin Monomers From Commercial Green Tea Extracts Nofrizal
Scientific Contributions Oil and Gas Vol. 35 No. 1 (2012): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.35.1.21

Abstract

The inhibitory effect of two Indonesian green tea extracts (containing various catechins) were investigated on the corrosion of mild steel (MS) in 1M HCl medium. The anticorrosion effect was evaluated by conventional weight loss method, potentiodynamic polarisation, electrochemical impedance spectroscopy (EIS) studies and scanning electron microscopy (SEM) technique. The results evidenced that both the tea extracts act as a good corrosion inhibitor and the inhibition effi ciencies (% IE) were in good agreement for all the studies. Adsorption of green tea extract constituent was found to follow Langmuir adsorption isotherm and the calculated Gibb’s free energy values indicated the physisorption of inhibitor over the mild steel surface. SEM – EDX studies show the adsorption of catechin monomers which forms a protective layer over the mils steel surface. High performance liquid chromatography (HPLC) analysis was carried out to quantify the catechin fractions in the tea extract and it was found that eight catechin monomers were present in both tea extracts. From all of monomers, it was found that four monomers were identifi ed as components responsible for controlling the dissolution of mild steel in 1 M HCl medium.
THE PREFERENTIAL WELD CORROSION OF X65 CARBON STEEL PIPELINE UNDER CO2 ENVIRONMENT Nofrizal; Susan A Impey; Konstantinos Georgarakis
Scientific Contributions Oil and Gas Vol. 42 No. 1 (2019): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.42.1.174

Abstract

Preferential weld corrosion (PWC) is a severe corrosion form of attack found in pipeline weldments in oil and gas industries. PWC occurs when the corrosion rate of the weld metal (WM) and heat affected zone (HAZ) is higher than the parent metal (PM). PWC was generated by galvanic corrosion mechanism due to dissimilarities in the composition and microstructure of the metal in the three weld regions. The aim of this research is to study the effect of flow rate on preferential weld corrosion (PWC) in X65 high strength pipeline steel using submerged jet impingement by investigating the mechanism of PWC on a weldment in artificial seawater saturated with carbon dioxide at 1 bar. A novel submerged jet impingement apparatus that consist of 3 rings (outer, inner and centre) was designed so that the parent material, heat affected zone and weld metal could be analysed in a high shear stress environment. Corrosion experiments were performed with X65 pipeline steel under no flow and flowing condition at 10 m/s at 30oC and pH4. The galvanic current characteristic between the weldment regions was recorded using a zero-resistance ammeter, and the self-corrosion was analysed by using linear polarisation resistance measurements. Total corrosion rates were calculated from the sum of the galvanic and self-corrosion contributions. The morphology, structure, chemical on the surface of X65 after corrosion process was investigated by means of scanning electron microscopy (SEM) and focus ion beam (FIB) to examine the corrosion product that form in brine containing dissolved carbon dioxide. In a no-flow condition, the result shows that the galvanic characteristics on all weldments were similar and the WM is cathodic and protected in comparison with the HAZ and PM. In flowing condition, the estimated flow rates associated with the different positions on the target vary depending on either (a) PM and HAZ or (b) the WM. The effects of target flow rate on WM have a similar trend, but the overall corrosion rates are greater due to PWC. The result of surface analysis after corrosion process showing that removal of hardened layer and subsurface cracking were causes of enhanced degradation.
PENGUKURAN KINERJA INHIBITOR KOROSI MENGGUNAKAN METODE ELEKTROKIMIA Nofrizal; Keffi Tasliyana
Lembaran Publikasi Minyak dan Gas Bumi Vol. 53 No. 2 (2019): LPMGB
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui kinerja dari dua jenis inhibitor, yaitu inhibitor A (Glycol base) dan inihibitor B (Amine base) yang digunakan untuk menurunkan reaksi korosi dalam media larutan air garam (brine water) yang dijenuhkan dengan CO2. Kinerja dari kedua jenis inhibitor ini diukur menggunakan metode elektrokimia, pemindaian mikroskop elektron (SEM) dan difraksi sinar X. Efi siensi inhibitor dihitung dari kepadatan arus korosi, ketahanan arus (Icorr), dan polarisasi (Rp). Hasil dari metode elektrokimia menunjukkan bahwa efi siensi inhibitor meningkat dengan meningkatnya konsentrasi. Kedua inhibitor bertindak sebagai inhibitor yang baikn pada konsentrasi 250 ppm dengan efesiensi optimum sebesar 89 % (inhibitor A) dan 96 % (inhibitor B). Hasil dari Scanning Electron Microscopy (SEM) terhadap permukaan baja karbon menunjukkan transformasi morfologi baja karbon menjadi lebih baik setelah penambahan inhibitor. Perilaku adsorpsi inhibitor pada permukaan baja adalah bersifat kimia dan mematuhi hukum penyerapan isotermal Langmuir.
Optimalisasi Kinerja Pilot Plant Adsorber Merkuri Untuk Gas Bumi Lisna Rosmayati; Yayun Andriani; Nofrizal; Nata P
Lembaran Publikasi Minyak dan Gas Bumi Vol. 48 No. 1 (2014): LPMGB
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pengujian optimalisasi kinerja adsorber mercury removal bertujuan untuk menghitung seberapa besar penurunan tekanan dalam sistem (pressure drop), menghitung besarnya e¿ siensi penyerapan dari adsorben dan menghitung masa pakai (life time) adsorben. E¿ siensi penyerapan tergantung pada jenis adsorben (karbon aktif) dan akan mempengaruhi waktu tinggal merkuri serta besarnya penurunan tekanan sistem (pressure drop). Impregnant (ZnCl2 ) berpengaruh pada masa pakai (life time) dan waktu tinggal. Kapasitas penyerapan adsorben karbon aktif tempurung kelapa adalah 0,124 Kg-Hg/Kg-Carbon. Jadi untuk 1 kg adsorben karbon aktif tempurung kelapa yang telah diaktifasi, mampu menyerap merkuri dalam gas bumi sebesar 0,124 kg Hg. Untuk e¿ siensi penyerapan, diperoleh rata-rata e¿ siensi penyerapan karbon aktif tempurung kelapa terhadap merkuri dalam gas bumi di titik inlet dan outlet adsorber adalah 95,74 %. Hasil kegiatan penelitian optimalisasi kinerja adsorber pilot plant merkuri removal gas bumi diperoleh karakteristik adsorben merkuri yang meliputi bilangan iodin rata-rata 889 mg/gram, luas permukaan adsorben setelah aktifasi ¿ sika 1052 m2 /g, setelah aktifasi kimia 724 m2 /g, impregnasi klor 4,39 % dan parameter uji yang mewakili spesi¿ kasi adsorber meliputi pressure drop 1,7526 psig/ft, kapasitas penyerapan 0,124 kg-Hg/kg-carbon, adsorben dan masa pakai (lifetime) adsorbennya adalah 28 tahun.
Education on Income Tax (PPh) Badan: Edukasi pajak Penghasilan (PPh) Badan Hardi; Lubis*, Nurhayani; Siregar, Inova Fitri; Maryanti, Sri; Nofrizal
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 9 No. 1 (2025): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v9i1.17439

Abstract

The background of partner selection is based on the situation analysis that students at the school are still not fluent in calculating corporate income tax 21. So that it requires additional understanding of this matter. To overcome the lack of ability of these students, the service team from the Faculty of Economics and Business, Lancang Kuning University offered a solution to provide education about PPh 21 corporate tax. And it was welcomed by the school. The purpose of this service is to improve the ability of students majoring in accounting at SMKN 1 Tapung in calculating income tax This service was carried out on 15 August 2023 at SMKN 1 Tapung. This service was carried out on 15 August 2023 at SMKN 1 Tapung. To achieve the service objectives that have been previously stated, the implementation of this community service activity is carried out with a systematic method, which begins with the preparation stage, namely discussing with the school regarding what the current needs of students are and formulating the solutions provided. After that, enter the second stage, namely the implementation stage, at this stage the team provides education about corporate income tax 21 to students. This stage was attended by 29 students majoring in accounting. At this stage, students are directly involved in tax calculations so that students understand more about the concepts and how the calculation of PPh 21 Corporate tax applies in Indonesia. The last stage is evaluation, where this stage is one of the most important. Evaluation is intended to measure the success of this service. Evaluation is measured by giving questionnaires before and after the service. The results of the questionnaire from 29 students showed a significant improvement, and it can be concluded that this service was successful. As a continuation, it is hoped that the school can continue to educate students about the tax regulation updates. Because as is known, the regulations regarding taxes are constantly evolving
EDUKASI MYOB ACCOUNTING PADA SMKN 2 MANDAU Lubis, Nurhayani; Hardi; Nofrizal; Maryanti, Sri; Siregar, Inova Fitri
Diklat Review : Jurnal manajemen pendidikan dan pelatihan Vol. 9 No. 1 (2025): Penguatan Pendidikan, Pemberdayaan Masyarakat, dan Transformasi UMKM di Era Ber
Publisher : Komunitas Manajemen Kompetitif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35446/diklatreview.v9i1.1822

Abstract

MYOB accounting is software designed for financial accounting purposes, facilitating the recording of an organization's financial transactions. This application provides real-time financial data and has a user-friendly interface. According to the directives of the Ministry of National Education (Kemendiknas) in 2010, schools, particularly vocational high schools (SMK), are required to assess accounting competencies using the Mind Your Own Business software. SMKN 2 Mandau is a vocational school located in Bathin Solapan District, precisely at the border between Duri and Dumai, Riau Province. The school has one accounting class for each grade. As with other vocational schools, the curriculum of this school includes material on accounting software. Discussions with the head of the accounting laboratory and the curriculum coordinator at SMKN 2 revealed that students' ability to operate the MYOB accounting system is still limited. This community service involves three methods: preparation, implementation, and evaluation stages. The service was carried out on July 31, 2024. The results from the questionnaire distributed before the training indicate that students' understanding and awareness of MYOB Accounting were relatively low. Of the five statements in the questionnaire, statements 1 through 4 all received results below 50%. The results from the questionnaire after the MYOB Accounting training at SMKN 2 Mandau showed that the training significantly improved students' knowledge and skills. The average score for all statements increased to above 60%, with the highest improvement being in awareness and actual experience of the benefits of MYOB Accounting education, which rose to 74%.
HAK UNTUK MEMBANTAH TIRANI DALAM PERSPEKTIF AL-QUR’AN Pater, Rizki Anla; Nofrizal
ANDREW Law Journal Vol. 4 No. 1 (2025): JUNI 2025
Publisher : ANDREW Law Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61876/alj.v4i1.54

Abstract

Tirani merupakan bentuk kekuasaan yang zalim dan bertentangan dengan prinsip keadilan dalam Islam. Studi ini bertujuan untuk mengkaji hak membantah tirani dalam perspektif Al-Qur’an dengan fokus pada QS. Al-Māidah: 78–79. Penelitian ini menggunakan pendekatan tafsir maudhu’i dan hermeneutika maqāṣidī untuk memahami makna ayat secara kontekstual dan mendalam. Hasil kajian menunjukkan bahwa Al-Qur’an tidak hanya memberikan hak, tetapi juga mewajibkan umat Islam untuk menentang kezaliman sebagai bagian dari amar ma’ruf nahi munkar. QS. Al-Māidah: 78–79 menggarisbawahi pentingnya peran umat dalam mencegah kemungkaran dan menegakkan keadilan sebagai bentuk tanggung jawab sosial dan religius. Diam terhadap tirani dianggap sebagai dosa kolektif yang dapat mendatangkan laknat Allah. Penelitian ini menegaskan relevansi ajaran Al-Qur’an dalam memperkuat kesadaran moral dan sosial umat untuk aktif melawan penindasan dalam kehidupan berbangsa dan bernegara.
Implementasi Perda Nomor 2 Tahun 2022 Terhadap Pengamen Badut Di Rokan Hulu AMELYA, SISKA; KARMILIA, RISE; NORA NST, ELFI; AULIA, SINDI; HENDRI; NOFRIZAL
Riau Law Journal Vol. 9 No. 1 (2025): Riau Law Journal
Publisher : Fakultas Hukum Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30652/rlj.9.1.%p

Abstract

This study aims to analyze the implementation of Rokan Hulu Regency Regional Regulation Number 2 of 2022 concerning Public Order, especially regarding the presence of clown buskers at traffic light intersections. The phenomenon of clown buskers that is rampant in urban areas of Rokan Hulu is considered to disturb public order and endanger the safety of road users, so it has become a concern for the local government. This study uses a qualitative approach with a descriptive method. Data collection techniques were carried out through in-depth interviews with Satpol PP officers, clown buskers, and the local community, as well as documentation of related policies. The results of the study show that the implementation of the Regional Regulation has not been optimal. The obstacles faced include limited human resources in the regional regulation enforcement officers, less than optimal socialization to the community, and economic factors that encourage clown busking activities to continue. In addition, there are no alternative solutions from the government for buskers to switch professions properly. In conclusion, although normatively Regional Regulation Number 2 of 2022 has regulated the prohibition of activities that disturb public order, its implementation still requires strengthening in the aspects of supervision, enforcement, and social empowerment. The recommendation from this study is the need for synergy between local governments, law enforcement officers, and social institutions in controlling clown buskers while providing sustainable economic solutions.
The Meaning of the Verses of Tasybih At-Tamtsil in Surah An-Nahl: An Analysis of Balaghah and Its Relevance to Islamic Religious Education Nofrizal; Marlion, Ferki Ahmad
Journal of Contemporary Islamic Education Vol. 5 No. 2 (2025): Journal of Contemporary Islamic Education
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to analyze the use of language styles tasybīh at-tamtsil in the Surah An-Nahl and reveal the relevance of the symbolic meaning of these verses to Islamic Religious Education (PAI). This research is a qualitative-descriptive study with a balaghah (bayān) and stylistic approach, through a literature study of the parable verses in the Surah An-Nahl, especially verses 74–75, 76, 91–92, and 112. The study results show that tasybīh at-tamtsil, the parables in this Surah, not only serve as rhetorical decoration, but also contain strong values of faith, morality, social, and spirituality. These parables illustrate the dangers of polytheism, the importance of keeping promises, social responsibility, and the threat to a society that denies blessings. This study concludes that integrating balaghah analysis into Islamic Religious Education (PAI) learning can strengthen students' understanding of the messages of the Qur'an aesthetically and educationally. Therefore, the balaghah approach can be a strategic alternative in developing an Islamic Religious Education (PAI) curriculum based on character and the values of monotheism.
NORMATIVE JURIDICAL ANALYSIS OF THE POSITION OF GOVERNMENT REGULATION IN LIEU OF LAW (PERPPU) IN THE HIERARCHY OF STATUTORY REGULATIONS Fitri Elfiani; Zulkifli; Nofrizal; Romadhan Lubis; Dearma Sinaga
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 4 No. 8 (2025): JULY
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v4i8.1054

Abstract

This study offers a normative and juridical analysis of the position of Government Regulations in Lieu of Law (Perppu) within the hierarchy of statutory regulations in Indonesia. It investigates the constitutional and legal framework surrounding Perppu, particularly in light of its "emergency" and "temporary" nature, the President's authority to issue them without prior legislative consultation, and the requirement for subsequent approval by the House of Representatives (DPR). The research critically examines the consistency of Perppu with fundamental legal principles, including the rule of law, constitutional supremacy, and the separation of powers. It addresses the theoretical and practical controversies surrounding the application of Perppu, especially concerning the interpretation of "compelling urgency" and the potential for abuse of executive authority, which has become increasingly relevant given the rising frequency of Perppu issuances. The study argues for the need to clarify the legal standing of Perppu within the existing legal structure, strengthen parliamentary and judicial oversight mechanisms, and establish objective and measurable criteria for determining "compelling urgency." By doing so, it aims to ensure that Perppu remains a constitutional instrument, operating within defined boundaries, and does not undermine the legislative functions of the DPR or the principles of a democratic state governed by law. This normative review also seeks to address the legal and constitutional challenges in the practice of forming Perppu in Indonesia.
Co-Authors ', Isnaniah ', Pujiono . Alfin Abdul Hakam Ade Murdani Adrianto Ahmad Afni Meldawati Agussalim Simanjuntak Aidil fadhari Alit Hindri Yani Andriani Andriani Andry Zuldry, Andry Aprisal Aras Mulyadi Bambang Istijono, Bambang Bastianto Bastianto Budijono, Budijono Bustari Bustari Dearma Sinaga ENDRI ENDRI Farhan Ramdhani Fatmawati, Riska Fauzan Fauzan Ramadan Ferki Ahmad Marlion Fitri Elfiani Gesit Yudha Gusti Indra Hardi Helmi Insyani, Helmi Imam Arifandy Imam Pangestiansyah Inova Fitri Siregar, Inova Fitri Irwandy Syofyan Jonny Zain Karmilia, Rise Karnila, Rahman Karnila Keffi Tasliyana Konstantinos Georgarakis Kuswiyono, Dibyo Lisna Rosmayati Lubis*, Nurhayani M Fadhilah Zaim Umam M. Habib EY M. Zulkarnain Maladi M. Mustar Mubarak . Mubarak Mubarak Muchtar Ahmad Muhamad Mauliddin M_Habib_Ey M_Habib_Ey Nafira Rahmat Nata P Nazri Zulfajrin Nofrizal Nofrizal Nora Nst, Elfi nurhayani lubis, nurhayani Nurul Qomar Pandu Permana Pater, Rizki Anla Praditya, Argadian Yoga Putra Mulia Putra Mulia Rahmadi Rahmadi Ramses Ramses Ramses Razai, Tengku Said Redo Andi Marta, Redo Andi Rezalia Eka Putri Rizky Janatul Magwa Romadhan Lubis Romie Jhonnerie Rommie Jhonnerie Rommie Jhonnerie Ronald M Hutauruk Rosef Putra Sandra Yustian, Sandra Septy Heltria Sindi Aulia Sinta, Sinta Ardila Siska Amelya Sri Maryanti Sukendi Sukendi Susan A Impey Suwondo Suwondo Tengku Nurhidayah Thamrin Thamrin Thamrin Thamrin Usman Muhammad Tang Viktor Amrifo Viktor Amrifo Wahyudi Armen Wan Nishfa Dewi Wawan Wawan Wira Wahyuni Wahyuni Yayun Andriani Yudha, Gesit Yumiati Yuzelma Yuzelma Zulfan Saam Zulfan Sa’am Zulfikar Zulfikar Zulkifli