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Isotropic Potential Model of Hydrogen Physisorption on Exohedral of Single Walled Carbon Nanotubes with Various Diameter Nasruddin Nasruddin; Engkos Kosasih; Supriyadi Supriyadi; Ihsan Zulkarnain
Journal of Mechanical Engineering and Mechatronics Vol 1, No 01 (2016): Journal of Mechanical Engineering and Mechatronics
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1500.269 KB) | DOI: 10.33021/jmem.v1i01.36

Abstract

Abstract. This work presents step-by-step procedure of modeling accurate interaction potential energy between hydrogen and outer surface of zigzag Single Walled Carbon Nanotube (CNT) as a function of its diameter. First principles calculations at MP2 method level and def2-SVP basis-set were performed to predict the interaction potential energy of hydrogen gas molecule on outer surface of CNT cluster model. The result shows that the physisorption energy is ranging between 1.05 kcal/mol to 1.14 kcal/mol. Using force-matching method, Lennard-Jones potential parameters were approximated for interaction between united-atom model of hydrogen molecules and the CNT. Assuming constant σ = 3.2 Å, the result shows that the ε parameter can be defined as a function of CNT diameter.Keywords. Hydrogen, Carbon Nanotube, First principles, Ab initio, Binding Energy, Force-matching Method, Lennard-Jones Potential
AIR TAWAR DI PULAU KECIL TERUMBU KARANG DERAWAN: MASALAH DAN ADAPTASI TERHADAP KENAIKAN MUKA AIR LAUT Wahyoe S. Hantoro; Sapri Hadiwisastra; Edy M. Arsadi; A. Masduki; A.Y. Airlangga; Suyatno Suyatno; Engkos Kosasih
JURNAL RISET GEOLOGI DAN PERTAMBANGAN Vol 19, No 2 (2009)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2393.288 KB) | DOI: 10.14203/risetgeotam2009.v19.28

Abstract

ABSTRAK Pulau Derawan merupakan bagian dari gugusan pulau terumbu karang yang tumbuh di tinggian atau substrat dari endapan pasir dan lempung di perairan lepas pantai estuari Sungai Berau. Sejumlah pemboran yang dibuat di jalur tengah di gosong pasir dan Pulau Derawan memperlihatkan suatu urutan pengendapan pulau terumbu karang yang mengalami perulangan perubahan muka laut serta dengan ciri pengendapan seiring kenaikan cepat muka laut sejak zaman es terakhir (14.000 th). Data tersebut, menempatkan gugusan pulau ini pada kemungkinan terjadinya penurunan tektonik. Hal ini juga dipertegas oleh data seismik pantul dangkal dari kawasan disekitarnya. Memperhatikan skenario kenaikan muka laut global 1 cm/tahun, Derawan dan gugusan pulau terumbu karang halang di perairan dan estuari Berau sesungguhnya saat ini berada pada ancaman serius dengan berbagai konsekuensinya. Ancaman tersebut salah satunya adalah akan sangat berkurangnya ketersediaan air tawar pulau yang hanya diperoleh dari air meteorik. Naiknya muka air laut akan menaikkan muka air asin yang di atas mana bertengger lensa air tawar yang akan segera menipis. Saat ini berdasar pengukuran, lapisan air tawar mempunyai tebal tidak merata sekitar 2-4 m. Langkah awal mengatasi masalah ini adalah melakukan upaya pengaturan pemakaian air tawar sehingga selalu seimbang neracanya serta mengusahakan memperhalus sedimen yang menjadi tempat air tawar terkumpul sehingga dapat menghalangi masuknya air asin dari formasi dibawahnya maupun langsung dari arah samping (pantai) ketika pasang naik paling tinggi. Upaya ini dapat dilakukan dengan penanaman jenis pohon tertentu yang sudah diuji kemampuan dan perilakunya namun juga terhindar dari dampak kelebihan evapotranspirasi. 
Menjelajahi Faktor Psikologis di Balik Inkar al-Sunnah: Tinjauan atas Studi Terkait Taufik, Risyan Moehamad; Engkos Kosasih
el-Sunnah: Jurnal Kajian Hadis dan Integrasi Ilmu Vol. 5 No. 1 (2024): el-Sunnah: Jurnal Kajian Hadis dan Integrasi Ilmu
Publisher : The Hadith Department, Faculty of Ushuluddin and Islamic Thought, State Islamic University of Raden Fatah Palembang.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/elsunnah.v5i1.21295

Abstract

Tinjauan psikologis tentang Inkar al-Sunnah merupakan pendekatan yang mengeksplorasi faktor-faktor psikologis yang mendasari dan mempengaruhi kecenderungan individu untuk menolak atau mengabaikan ajaran-ajaran Sunnah dalam Islam. Artikel ini bertujuan untuk mengetahui faktor psikologis di balik Inkar al-Sunnah. Latar belakang masalah mengemukakan relevansi pentingnya penelitian tentang Inkar al-Sunnah dari perspektif psikologis. Dengan menggunakan metode kualitatif dan jenis penelitian pustaka, artikel ini menemukan bahwa beberapa faktor psikologis yang relevan di antaranya adalah motivasi, persepsi, proses kognitif, dan pengaruh sosial. Pendekatan pendidikan agama yang komprehensif juga akan efektif memberikan pencegahan baik preventif maupun kuratif terhadap perkembangan ajaran Inkar al-Sunnah, dan secara aplikatif bisa dilakukan baik secara formal maupun non-formal di antara orang-orang umum. Dengan demikian, pemahaman tentang faktor-faktor psikologis yang mempengaruhi Inkar al-Sunnah sangat penting dan pendekatan pendidikan agama yang efektif sangat diperlukan untuk mencegahnya.
The Relevance of Hermeneutics to Yusuf Al-Qaradhâwî’s Understanding in Formulating Islamic Law Based on the Prophet ﷺ’s Hadith Engkos Kosasih; Muhammad Al Mighwar
al-Afkar, Journal For Islamic Studies Vol. 7 No. 2 (2024)
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/afkarjournal.v7i2.1132

Abstract

The universalism of Islamic teachings, which are based on the text of the Koran and Hadith and are always in line with contemporary developments, must be supported by contextual understanding as well as textual understanding. This includes the application of a hermeneutic perspective, which aims to interpret, comprehend, and translate the true reality concealed within the text. This study intends to investigate the applicability of hermeneutics to Yusuf Al-Qaradhâwî's understanding of formulating Islamic law from the Prophet ﷺ's hadiths, in addition to conducting a comparative and thematic analysis of other scholars' hermeneutic interpretations. The study employs a qualitative research methodology, theme analysis, and literature review techniques to examine Al-Qaradhâwî's writings on the hadith of the Prophet ﷺ. The contextual and historical factors that shaped his comprehension of the hadith are emphasized. The analysis's findings demonstrate that Yusuf Al-Qaradhâwî's comprehension is essentially similar to that of traditional hadith scholars. Nonetheless, he provides thoughtful and practical approaches and ideas for comprehending the Prophet's sunnah in a contextual and all-encompassing manner. It is intended that the findings of this study will make a significant contribution to raising scholarly awareness of the applicability of hermeneutics in this situation. In addition, it can be a valuable source of information for future research aimed at understanding Islamic law originating from the hadith of the Prophet ﷺ.
The Expertise Of Muhammad Al-Hafizh Al-Misri At-Tijani (1897-1978) In Hadith Ilyas Jamil, Muhammad; Tajul Arifin; Engkos Kosasih
Tabayyun : Journal Of Islamic Studies Vol. 2 No. 02 (2024)
Publisher : Tabayyun : Journal Of Islamic Studies

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

Abstract

This writing aims to examine the prolific aspects and biography of one of the remarkable lives and multifaceted scholarly endeavours of Sayyid Muhammad al-Hafiz al-Misri at-Tijani, a towering figure in Islamic scholarship in Egypt during the late 19th century. Revered as a Muhaddith[1], Mufassir, Mutasawwif, and Mujahid, he exemplified a profound spiritual connection alongside an unparalleled commitment to the preservation and dissemination of Islamic knowledge. Born into a noble lineage, his scholarly pursuits took him across the Islamic world, where he garnered authority from renowned scholars and meticulously preserved rare manuscripts. A passionate lover of hadith, he dedicated himself to the exhaustive verification and organisation of foundational texts, enhancing their accessibility for future generations. Furthermore, his instructional efforts, notably his recurrent teachings of Sahih Bukhari, earned him the esteemed title of Master of the Muhaddiths. Beyond scholarship, he valiantly defended Islam against colonial onslaughts, employing both his intellectual prowess and military acumen. Endowed with miraculous abilities, his legacy transcends time, serving as a beacon of spiritual enlightenment and scholarly excellence for generations to come.  
Literature Review: Manajemen Perubahan, Tantangan Perubahan dan Model Perubahan Engkos Kosasih; B. Herawan Hayadi; Furtasan Ali Yusuf; M Haidar Husein; Musadad Musadad
Jurnal Manajemen Kewirausahaan dan Teknologi Vol. 1 No. 2 (2024): Juni : Jurnal Manajemen Kewirausahaan dan Teknologi
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jumaket.v1i2.95

Abstract

When it comes to managing change from a human perspective, an approach called change management can be used. Change management has evolved and evolved over the last fifty years. The term "change" refers to the process in which something changes from an initial state to a different or altered state. Changes, problems, and models are discussed in this research. A literature review was used. The results of this study show how important it is to change everyday life. Additionally, changes must take into account the current problems for which the appropriate model is designed, engineered, and managed.
Peran dan Kontribusi al-Rubayyi binti Muawwidz dalam Periwayatan Hadis: Kajian Tokoh Hadis Alawiah, Neli; Tajul Arifin; Engkos Kosasih
el-Sunnah: Jurnal Kajian Hadis dan Integrasi Ilmu Vol. 5 No. 2 (2024): el-Sunnah: Jurnal Kajian Hadis dan Integrasi Ilmu
Publisher : The Hadith Department, Faculty of Ushuluddin and Islamic Thought, State Islamic University of Raden Fatah Palembang.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/elsunnah.v5i2.23172

Abstract

Hadis merupakan landasan yang sangat penting dalam mengamalkan ajaran Islam, baik dalam ibadah secara ritual ibadah maupun sosial. Dalam memahami hadis, diperlukan informasi yang sangat mendalam mengenai tokoh-tokoh hadis. Pembahasan mengenai tokoh penyebaran dan periwayatan hadis sudah banyak dibahas namun tokoh tersebut merupakan para tokoh dengan jenis kelamin laki-laki, sehingga diperlukan untuk mengkaji salah satu tokoh perempuan yang berpengaruh dalam periwayatan hadis. Tokoh perempuan dalam periwayatan hadis salah satunya adalah al-Rubayyi binti Muawwidz dan merupakan salah satu sahabat Nabi Muhammad SAW yang dikenal karena keihklasannya, kebijaksanaannya serta keberaniannya dalam penyebaran hadis dan dedikasinya terhadap agama Islam. Tujuan penelitian ini adalah untuk mengetahui hadis yang diriwayatkan oleh Rubayyi binti Muawwidz. Penelitian ini menggunakan jenis penelitian kepustakaan dan pendekatan normatif di mana penulis melakukan pengolahan data berupa analisis konten. Hasil penelitian menunjukkan bahwa Rubayyi binti Muawwidz meriwayatkan hadis yang dijelaskan dalam beberapa kitab hadis, menunjukkan sifat kebijaksanaan beliau dan wawasannya tentang ajaran Islam, serta mencerminkan perannya sebagai pembawa pengetahuan dari Nabi SAW.
ANALISIS KAIDAH-KAIDAH SANAD HADITS DARI ASPEK RAWI: IDENTITAS RAWI Tiana Nur Azizah Suparman; Engkos Kosasih
Tashdiq: Jurnal Kajian Agama dan Dakwah Vol. 10 No. 2 (2025): Tashdiq: Jurnal Kajian Agama dan Dakwah
Publisher : Cahaya Ilmu Bangsa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4236/tashdiq.v10i2.9715

Abstract

Sanad merupakan elemen fundamental dalam ilmu hadits yang menentukan otentisitas dan keabsahan periwayatan hadits. Setiap hadits disampaikan melalui rangkaian perawi yang dikenal sebagai sanad, dan kualitas serta keterhubungan sanad ini sangat berpengaruh pada diterima atau ditolaknya sebuah hadits. Dalam kajian ini, ilmu Thabaqat al-Ruwwah digunakan untuk mengelompokkan perawi berdasarkan generasi dan kredibilitas mereka. Metode penelitian ini adalah kualitatif dengan pendekatan deskriptif-analitis, yang berfokus pada identitas dan kredibilitas perawi dalam sanad hadits. Kajian ini menunjukkan bahwa peran penting sanad tidak hanya terletak pada ketersambungan rantai periwayatan, tetapi juga pada karakter dan integritas moral perawi. Dengan menganalisis hadits tentang kepedulian sosial, yang diriwayatkan oleh Imam Bukhari dan Muslim, penelitian ini menemukan bahwa para perawi dalam sanad tersebut, seperti Anas bin Malik, Sufyan bin 'Uyainah, dan Mujahid bin Jabr, merupakan perawi tsiqah (terpercaya) dari generasi sahabat hingga tabi'ut tabi'in. Hasil analisis menunjukkan bahwa hadits ini sahih, dengan sanad yang kuat dan otentik, menegaskan pentingnya sanad dalam menjaga keaslian ajaran Islam.
Typology of Hadith Madrasah in the Sham Muaripul Adha, Raja Syahrul; U Yusup Maulana; Isra Mardi; Engkos Kosasih
Al-Hasyimi - Jurnal Ilmu Hadis Vol. 1 No. 2 (2024): Al-Hasyimi - Jurnal Ilmu Hadis
Publisher : STAI Nurul Qadim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63398/jih.v1i2.38

Abstract

The region of Sham, which includes Syria, Lebanon, Palestine, and Jordan, has an important role in Islamic history, particularly in the development of hadith science. This study aims to explore the role and characteristics of hadith madrassas in Syam by using the library research method. The results of the study show that Sham is the center of blessings as mentioned in the verses of the Qur'an and the hadith of the Prophet. The companions, such as Mu'adz bin Jabal, Abu Darda, and Ubadah bin Shamit, played an important role in building the hadith madrassa in Sham, followed by the contributions of tabi'in and atba' tabi'in scholars. The hadith madrassa in Sham has its uniqueness, such as the beginning of hadith bookkeeping, the development of hadith criticism, and the lack of hadith forgery in the early days. However, the tradition of narrating hadith without sanad is also a challenge that is then improved through the innovation of scholars such as al-Auza'i and al-Zuhri. Thus, the hadith madrasah in Syam is not only a center of learning but also contributes significantly to maintaining the authenticity of the hadith, making it one of the important pillars in the history of Islamic science.
Contribution of the 3rd Century AH Musnad Book to the Historiography of Hadith Ia Mufti Hidayat; Irwan Kurniawan; Engkos Kosasih; Muhammad Al Mighwar
al-Afkar, Journal For Islamic Studies Vol. 8 No. 2 (2025)
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/afkarjournal.v8i2.1433

Abstract

This study explores the musnad books in the Islamic hadith tradition, the methodology of compiling musnad books, the richness of Hadith and information from the companions contained therein, and their contribution to the historiography of hadith with a focus on the third century Hijri era. The focus of the research is on the differences between musnad books and other hadith books, the methodology of compiling musnad books in the third century Hijri and the contribution of musnad books in the third century Hijri to historiography. This study uses a qualitative approach with a descriptive-analytical method to uncover the meaning and contribution of musnad books in the third century Hijri. The results of the study showed that the musnad books in the third century Hijri, with their compilation methodology that focuses on sanad and credibility of narration, have made significant contributions to the historiography of hadith, in the form of preservation and dissemination of hadith, reconstruction of the history of hadith narration, identification of narrators and hadith schools, and understanding the development of Islamic civilization in the early days. This research is expected to provide a clear and in-depth picture of the role and monumental contribution of the Musnad books in the development of Hadith science, enriching religious knowledge, and strengthening the faith of Muslims.