Khoiruddin Khoiruddin
Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132

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Investigation of Electrochemical and Morphological Properties of Mixed Matrix Polysulfone-Silica Anion Exchange Membrane Khoiruddin, Khoiruddin; Wenten, I Gede
Journal of Engineering and Technological Sciences Vol 48, No 1 (2016)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (490.329 KB) | DOI: 10.5614/j.eng.technol.sci.2016.48.1.1

Abstract

Mixed matrix anion exchange membranes (AEMs) were synthesized using dry-wet phase inversion. The casting solutions were prepared by dispersing finely ground anion-exchange resin particles in N,N-dimethylacetamide (DMAc) solutions of polysulfone (PSf). Subsequently, nanosilica particles were introduced into the membranes. The results show that evaporation time (tev) and solution composition contributed to membrane properties formation. A longer tev produces membranes with reduced void fraction inside the membranes, thus the amount of water adsorbed and membrane conductivity are reduced. Meanwhile, the permselectivity was improved by increasing tev, since a longer tev produces membranes with a narrower channel for ion migration and more effective Donnan exclusion. The incorporation of 0.5 %-wt nanosilica particles into the polymer matrix led to conductivity improvement (from 2.27 to 3.41 mS.cm-1). This may be associated with additional pathway formation by hydroxyl groups on the silica surface that entraps water and assists ion migration. However, at further silica loading (1.0 and 1.5 %-wt), these properties decreased (to 1.9 and 1.4 mS.cm-1 respectively), which attributed to inaccessibility of ion-exchange functional groups due to membrane compactness. It was found from the results that nanosilica contributes to membrane formation (increases casting solution viscosity then reduces void fraction) and membrane functional group addition (provides hydroxyl groups).
Impurity Removal of Waste Cooking Oil Using Hydrophobic Polypropylene Hollow Fiber Membrane Aliwarga, Lienda; Widodo, Setyo; Suwardana, Novika; Darmawan, Hanna; Khoiruddin, Khoiruddin; Wenten, I Gede
Journal of Engineering and Technological Sciences Vol 51, No 2 (2019)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (29.163 KB) | DOI: 10.5614/j.eng.technol.sci.2019.51.2.5

Abstract

Removal of impurities from cooking oil is an important step in providing the possibility of WCO reuse to extend the life cycle of cooking oil, leading to a reduction of WCO disposal. This study was conducted to investigate the performance of a polypropylene (PP) hollow fiber ultrafiltration (UF) membrane for removal of impurities from WCO. The results showed that the membrane could remove water content up to 95% (at 0.1 MPa and 30 °C), but the color improvement was only 9.5% as indicated by the absorbance reduction. Within the range of the operation conditions (i.e. a trans-membrane pressure of 0.1-0.2 MPa and a temperature of 30-50 °C), the oil flux varied from 0.3 L.m‑2.h‑1 to 1.3 L.m-2.h-1. In long-term operation, the membrane wettability was improved as shown by the oil contact angle decreasing from 28.2 ± 1.5° to 14.4 ± 0.5°. This resulted in a higher oil flux. At the same time, the hydrophobicity was also increased, as indicated by an increase in the water contact angle from 95.4 ± 0.7° to 97.3 ± 1.1°.
PANDANGAN HAKIM PENGADILAN AGAMA BANGKALAN TERHADAP EFEKTIVITAS DAN SANKSI KODE ETIK HAKIM OLEH ORGANISASI PROFESI Nurjanah, Pipin; Al Mushof, Mukharom; Dania, Dania; Khoiruddin, Khoiruddin
Media of Law and Sharia Vol 1, No 4 (2020): September
Publisher : Faculty of Law Universitas Muhamadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.966 KB) | DOI: 10.18196/mls.v1i4.9040

Abstract

ABSTRAKHakim merupakan salah satu penegak hukum yang menurut Undang-Undang bertugas mengadili perkara di Pengadilan. Dalam Menjalankan Profesinya harus sesuai dengan aturan yang disebut juga dengan Kode Etik Hakim. Adanya ketentuan Kode Etik dan Pedoman Perilaku Hakim diatur dalam Surat Keputusan Bersama (SKB) Nomor 047/KMA/SKB/IV/2009 dan Nomor 02/SKB/P.KY/IV/2009 tentang Kode Etik dan Pedoman Perilaku Hakim yang menerangkan mengenai Kode etik yang harus di patuhi oleh hakim dan harus ada keefektifan dalam menajalankan profesinya. Walaupun terdapat kode etik, tidak menutut kemungkinan bahwa ada hakim yang nantinya lalai  yang kemudian melanggar kode etik profesi hakim itu sendiri. Dalam penerapan sanksinya pun harus sepadan dan sesuai dengan pelanggaran yang dilakukan. Artikel ilmiah ini menggunakan  metode penelitian  ini, penulis menggunakan pendekatan hukum normatif atau penelitian kepustakaan. Sedangkan metode pengumpulan data dalam penulisan artikel ilmiah ini dengan melakukan wawancara terhadap pihak yang terkait.Kode etik tersebut menjadi suatu keefektifan tersendiri bagi hakim khususnya di Pengadilan Agama Bangkalan dalam menjalankan profesinya, dilihat dari hakim yang memang melaksanakan tugas dan wewenang sesuai dengan Kode Etik Profesi Hakim. Namun. apabila melanggar terdapat sanksi yang diberikan walaupun hakim juga termasuk salah satu penegak umum dilingkup Mahkamah Agung, sanksi yang diberikan berbeda-beda yakni sanksi ringan, sanksi sedang dan sanksi berat. Hal ini disesuaikan dengan ringan beratnya pelanggaran yang dilakukan oleh hakim. Tidak ada sanksi pelaporan pelanggaran yang diajukan masyarakat Bangkalan ke Pengadilan Agama Bangkalan, hal ini membuktikan hakim dilingkup Pengadilan Agama Bangkalan mematuhi kode etik yang berlaku. Sehingga dapat disimpulkan bahwa Pengadilan Agama Bangkalan keefektifan dalam mengimplementasikan adanya Kode Etik Profesi sesuai dengan Pedoman memang benar-benar dipatuhi serta tidak ada sanksi pula yang dilanggar oleh Hakim yang ada di Pengadilan Agama Bangkalan.Kata Kunci : Hakim, Kode Etik, Efektivitas, Sanksi.  ABSTRACTThe judge is one of the law enforcers who according to the Law is tasked with hearing cases in the Court. In carrying out his profession must be in accordance with the rules, also called the Judges' Code of Ethics. The provisions of the Code of Ethics and the Code of Conduct for Judges are regulated in the Joint Decree (SKB) Number 047 / KMA / SKB / IV / 2009 and Number 02 / SKB / P.KY / IV / 2009 concerning the Code of Ethics and the Code of Conduct for Judges which explains the Code ethics that must be obeyed by the judge and there must be effectiveness in managing his profession. Even though there is a code of ethics, it does not undermine the possibility that there will be judges who will be negligent who then violate the professional code of justice itself. In applying the sanctions must be commensurate and in accordance with the violations committed. This scientific article uses this research method, the author uses a normative legal approach or library research. While the method of collecting data in writing scientific articles is by conducting interviews with related parties.The code of ethics has become a special effectiveness for judges, especially in the Bangkalan Religious Court in carrying out their profession, seen from judges who indeed carry out their duties and authority in accordance with the Professional Code of Ethics for Judges. However. if there is a sanction violated, even though the judge is also included as one of the general enforcers in the scope of the Supreme Court, the sanctions are different, namely mild sanctions, medium sanctions and severe sanctions. This is adjusted to the severity of the violations committed by the judge. There are no sanctions for reporting violations submitted by Bangkalan people to the Bangkalan Religious Court, this proves that judges in Bangkalan Religious Courts comply with the applicable code of ethics. So it can be concluded that the Bangkalan Religious Court's effectiveness in implementing the existence of the Professional Ethics Code in accordance with the Guidelines was really obeyed and there were no sanctions that were violated by Judges in the Bangkalan Religious Court.Keywords: Judge, Code of Ethics, Effectiveness, Sanctions.
PENGARUH EMOSIONAL QUOTIENT DAN SPIRITUAL QUOTIENT TERHADAP KINERJA GURU SMP AN_NUR BULULAWANG MELALUI ENGAGEMENT SEBAGAI VARIABEL INTERVENING khoiruddin, khoiruddin
Al-Muttaqin : Jurnal Studi, Sosial, dan Ekonomi Vol 2, No 2 (2021)
Publisher : Sekolah Tinggi Agama Islam Sabilul Muttaqin Mojokerto

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Abstract

Abstrak Emotional quotientl, Spiritual Quotient dan Engagement tak terpisahkan dalam kehidupan seseorang, oleh karena itu dalam upaya pembentukan dan pengembangan sikap maka Kedua kecerdasan tersebut saling berhubungan. kecerdasan di atas sangat penting dan harus dikembangkan dalam kehidupan seseorang. Hal ini disebabkan karena Emotional Quotient diperlukan untuk mengatasi masalah afektif, dan Spiritual digunakan untuk mengatasi masalah bermakna dalam menjalani kehidupan,Engagement di perlukan untuk menjaga kestabilan untuk meyelesaikan segala tugas yang telah di amanhakan kepada pegawai. Penelitian dilakukan di SMP An-Nur Bululawang. Tujuan penelitian ini adalah untuk menguji dan menganalisis pengaruh Emotional Quotient terhadap kinerja Guru SMP An-Nur Bululawang, spiritual quotient terhadap kinerja Guru SMP An-Nur Bululawang, Engagement terhadap kinerja Guru SMP An-Nur Bululawang Emotional Quotient terhadap kinerja Guru SMP An-Nur Bululawang melalui variabel Engagement dan spiritual quotient terhadap kinerja Guru SMP An-Nur Bululawang melalui variabel Engagement. Variabel yang digunakan adalah Emotional quotient, dan Spiritual Quotien sebagai variable Endogen, kinerja. Engagemen sebagai variabel intervening dan kinerja Guru sebagai variabel eksogen. Sampel yang digunakan adalah Guru SMP An-Nur Bululawang sebanyak 48 responden. Metode pengumpulan data yang digunakan adalah kuesioner (angket). Analisis yang digunakan meliputi uji instrumen, uji asumsi klasik, uji normalitas, dan uji hipotesis menggunakan analisis regresi linier berganda dengan bantuan software SPSS 17.0 for windows. Hasil penelitian menunjukkan bahwa Emotional Quotient berpengaruh terhadap kinerja Guru SMP An-Nur Bululawang, spiritual quotient berpengaruh terhadap kinerja Guru SMP An-Nur Bululawang, Engagement berpengaruh terhadap kinerja Guru SMP An-Nur Bululawang, Emotional Quotient berpengaruh terhadap kinerja Guru SMP An-Nur Bululawang melalui variabel Engagement dan spiritual quotient berpengaruh terhadap Guru SMP An-Nur Bululawang melalui variabel Engagement. Kata kunci : Emotioanl Quotient, Spiritual Quotient, Engagement dan Kinerja Guru