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DECREASING THE HARDNESS Ca, Mg AND HEAVY METALS Fe, Mn, Zn IN RAW WATER WITH ZEOLITE FROM CIKALONG, TASIKMALAYA Husaini, Husaini; Soenara, Trisna
Jurnal Zeolit Indonesia Vol 5, No 1 (2006)
Publisher : Jurnal Zeolit Indonesia

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Abstract

The decrease of hardness (Ca, Mg) and heavy metal (Fe, Mn, Zn) contents in raw water was conducted by flowing the sample water through the activated zeolite bed column. Treated water obtained from the experiment obviously met the parameter in standard requirement of drinking water. Activated natural zeolite from Cikalong, Tasikmalaya is able to decrease the content of Ca, Mg, Fe, and Mn in the sample water through the cation exchange process by percolation method with the optimum flow rate of 5 volume bed/hour on the zeolite with the particle size of -10+18 mesh especially for decreasing the hardness (Ca and Mg content). On the other hand, optimum condition for decreasing Fe and Mn contents are reached on the zeolite with the particle size of -10+18 mesh and water flow rate of 10 volume bed/hour. The final treated water contained 0,08 ppm Mn and 0,024 ppm Zn, meanwhile the hardness and other cations have been reduced below the required limit value (0,30 ppm for Fe, 0,10 ppm for Mn, and 0,05 ppm for Zn).
MODIFICATION OF NATURAL ZEOLITE FROM CIKALONG WEST JAVA WITH HEXADECIL TRIMETIL AMMONIA AND ABSORPTION RATE TEST OF SULPHATE AND CHROMATE IONS Husaini, Husaini; Soenara, Trisna
Jurnal Zeolit Indonesia Vol 2, No 1 (2003)
Publisher : Jurnal Zeolit Indonesia

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Abstract

Cikalong mordenit natural zeolite with the average of cation exchange capacity (CEC) 154,2 meq/100 g has been used on modification trial. This modification attempts to increases the rate of anions absorbtion of zeolite in solution. On this research, zeolite is modificated using HDTMA through stirring process on beaker glass. Before the modification start, zeolite is set on pH 5 using sodium acetate solution. Variables on this research are: zeolite size (–10+18 mesh, -18+28 mesh, and –28+48 mesh), and HDTMA dosage (50%, 100%, and 200%). Furthermore modification of zeolite is tested it’s suphaate and chromate ions absorbtion rate. The modification of zeolite showed that the range of HDTMA weight percent that covers the surface of zeolite is 4,21 – 13,49% with the range of exchange ion capacity rate 137,05 – 143,00 meq/100 g. The best result of the absorbtion rate test is the -28 + 48 mesh zeolite with HDTMA dosage 200% for 49,46 mg/100g (5,15 mmol/kg) sulphate and for the cromat ion on -10 + 18 mesh zeolite with 50% HDTMA dosage, the absorbtion rate is 61,05 mg/100g (6,36 mmol/kg).
FRACTURE BEHAVIOR OF ACRYLONITRILE-BUTADIENE-STYRENE RESIN Husaini, Husaini; Kishimoto, Kikuo
Mesin Vol 15, No 3 (2000)
Publisher : Mesin

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Abstract

In this research, mixed mode loading testing of actylonitrile-butadiene-styrene (ABS) resin was carried out by using a compact tension shear specimen which was attached to a special loading device. The angle between the loading axis and the crack surface was varied from 90o (Mode I) to 0° (Mode I1). Two types of ABS resin were examined. The first one (ABS-I) has a butadiene rubber content of 18 wt % in the form of small particles of diameter about 200 nm. The second one (ABS-2) has the same overall butadiene rubber content but a bimodal particle distribution with diameters of 200 nm and 500 nm. Crack initiation and propagation was observed by using a video microscope. The results show that the fracture angle for both materials under mixed mode loading coincides with the values predicted by the maximum hoop stress criterion. To obtain the stress intensity flzctors, numerical analyses of compact-tension-shear specimen were conducted using a two dimensional finite element analysis. Fracture behavior of ABS resins under mixed mode loading was almost the same as that under mode I loading for lower value of mode 11 component. However, for higher mode II component, shear type fracture occurred at initial crack tip.
EFFECT OF RUBBER PARTICLE SIZE DISTRIBUTION ON FRACTURE TOUGHNESS OF RUBBER-MODIFIED POLYMER ALLOYSA Husaini, Husaini
Mesin Vol 16, No 3 (2001)
Publisher : Mesin

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Abstract

Makalah ini membahas studi numerik tentang pengaruh besarnya distribusi partikel karet dalam polimer paduan terhadap ketangguhan retak. Analisa metode elemen hingga dilakukan pada daerah deformasi sekitar ujung retak pada pembebanan mode I untuk kondisi small scale yielding. Sekitar ujung retak dimodelkan sebagai material campuran antara matriks dengan partikel karet. Sebaliknya, daerah di luar sekitar ujung retak dimodelkan sebagai material homogen yang persamaan konstitutifnya telah diperoleh dengan analisa model sel satuan dari matriks dan partikel karet. Ikatan sempurna dan ikatan sebagian antara matriks dan partikel karet pada bidang pemisah (interface) diasumsikan di dalam komputasi. Matriks dianggap sebagai material Mises dan partikel karet sebagai material Mooney-Rivlin. Dari hasil penelitian diperoleh bahwa energi yang masuk ke dalam daerah proses retakan, J-integral, adalah lebih kecil untuk jenis bimodal dari pada jenis monomodal. Hal ini sebagian besar terjadi pada kasus ikatan sebagian antara matriks dan partikel karet. Hasil-hasil penelitian menunjukkan bahwa pengaruh perlindungan (screening effects) yang terjadi pada jenis bimodal lebih besar dari pada monomodal.
MANAJEMEN KEPEMIMPINAN PADA LEMBAGA PENDIDIKAN ISLAM Fitria, Happy; Husaini, Husaini
JMKSP (Jurnal Manajemen, Kepemimpinan, dan Supervisi Pendidikan) Vol 4, No 1 (2019): JMKSP (Jurnal Manajemen, Kepemimpinan, dan Supervisi Pendidikan)
Publisher : Graduate Program Magister Manajemen Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.954 KB) | DOI: 10.31851/jmksp.v4i1.2474

Abstract

Success a management cannot be separated from management principles which formed the basis and the value of the management itself. Principles in management should be resilient, it needs to be considered in accordance with the special conditions and situational change. The general notion of management is an activity to achieve the goals that have been determined (getting things done through the effort of other people). Effective leadership is based on those they lead (conditions and situations). The leadership in Islamic educational institutions will be very effective in accordance with the conditions and situations that arise at the time. There is no effective leadership style but with the situation and the growing conditions. In the management of Islamic educational institutions must have some component of the right to produce a proper and prudent performance include planning, organizing, actuating, dan controlling.
DESAIN DAN PEMBUATAN SISTEM INFORMASI LABORATORIUM (SISLAB) PADA JURUSAN TEKNIK KIMIA POLITEKNIK NEGERI LHOKSEUMAWE Salahuddin, Salahuddin; Husaini, Husaini
Jurnal Sains dan Teknologi Reaksi Vol 5, No 2 (2007): Jurnal Sains dan Teknologi Reaksi
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v5i2.55

Abstract

Saat ini pengelolaan data merupakan hal sangat diperlukan pada sebuah lembaga pendidikan, oleh sebab itu penanganan data tersebut harus dilakukan secara tepat dan benar. Permasalahan yang ada saat ini pada laboratorium Jurusan Teknik Kimia belum adanya sebuah sistem database yang terintegrasi untuk mengontrol segala keperluan yang berhubungan dengan laboratorium. Selama ini pendataan alat-alat dan bahan-bahan laboratorium masih dilakukan secara manual. Oleh karena permasalahan tersebut perlu didesain sebuah sistem informasi sebagai sistem pendukung keputusan untuk proses pengambilan keputusan yang tepat bagi pimpinan. Hasil dari sistem ini yaitu memberi suatu informasi kebutuhan alat dan bahan-bahan praktikum pada setiap laboratorium yang ada pada jurusan Teknik Kima Politeknik Negeri Lhokseumawe. Sistem Informasi Laboratorium ini dapat digunakan dalam pendataan dan pengelolaan Laboratorium Jurusan Teknik Kima Politeknik Negeri Lhokseumawe, penggunaan sistem ini sangat membantu kepala laboratorium untuk proses pengajuan permintaan alat dan bahan-bahan habis pakai praktikum kepada pimpinan.Kata Kunci : Sistem informasi, Database, Client/Server
KEKERASAN TERHADAP ANAK DALAM PENDIDIKAN ISLAM MENURUT IBNU KHALDUN Husaini, Husaini
Idarah (Jurnal Pendidikan dan Kependidikan) Vol 1 No 1 (2017): Edisi Januari-Juni
Publisher : Jurusan Manajemen Pendidikan Islam Fakultas Ilmu Tarbiyah dan Keguruan (FTIK) IAIN Lhokseumawe.

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Abstract

The position of the child in the household is actually in a weaker position, than the adult and still dependent on the adults around him. Inside the child is in dire need of affection and refuge from adults, both from the family environment and educational environment. Violence that occurs against children can endanger the Physical and Psychic children. In Ibn Khaldun Thought about violence against children in education is. Ibn Khaldun prohibits violence against children in education this can endanger the physical and psychic learners. Ibn Khaldun offers the concept is to emphasize to educators to educate with gentle and affection towards learners. Taken as a whole Ibn Khaldun concludes that learning by force should be abolished in the world of education. Abolition of violence in the education world should be part of the desire to promote education, moral improvement and moral of students.
KARAKTERISTIK PERUSAHAAN, KELENGKAPAN PENGUNGKAPAN LAPORAN KEUANGAN DAN KEMUNGKINAN KECURANGAN PELAPORAN KEUANGAN Husaini, Husaini; Yuniza, Salma
Jurnal Akuntansi dan Keuangan Vol 8, No 1 (2020): Februari 2020
Publisher : Department of Accounting, Faculty of Economics & Business

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (125.923 KB) | DOI: 10.29103/jak.v8i1.2326

Abstract

This research aims to obtain empirical evidence regarding the effect of the characteristics of the company's financial disclosure statements of completeness and consequently to the financial statement fraud. Characteristics of companies in this study consists of company size, leverage, liquidity, the company's corporate status and age.The population in this research is the manufacturing companies listed on the Indonesia stock exchange over the years 2011-2013. Purposive sampling method based on retrieved 98 companies listed on the Indonesia stock exchange as research samples. Research on regression model using two. Using multiple linear regression, the study found the size of the company and the company's status affect the completeness of the disclosure of the financial statements. Leverage, liquidity and the age of the company does not affect the completeness of the disclosure of the financial statements. Then, the sample is categorized into 2 categories by using the Beneish model M-Score that the company that did the possibility of fraudulent financial reporting and company didn't do the possibility of fraudulent financial reporting. Using the method of logistic regression, this research found that the completeness of the pengungakap financial statements have no effect against the possibility of fraud in financial reporting.
Hubungan Hygiene Sanitasi dengan Kualitas Bakteriologis Depot Air Minum (DAM) di Kabupaten Balangan Suriadi, Suriadi; Husaini, Husaini; Marlinae, Lenie
Jurnal Kesehatan Lingkungan Indonesia Vol 15, No 1 (2016): April 2016
Publisher : Master Program of Environmental Health, Faculty of Public Health, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkli.15.1.28-35

Abstract

Drinking water depo (DAM) continues to increase in line with the dynamics of the community needs to drinking water. DAM water contamination can be caused by  factor sanitation hygiene of the DAM. This research aims to determine of the relationshipbetweensanitary hygiene andbacteriological quality in the DAM. It is observational using cross sectional design. Thepopulation of this research was over all depo of drinking water in Balangan, while sample was takenby purposive sampling which has been determined based on inclusion and exclusion criteria. The research variables are location, building, production equipment, production process, sanitary facilities and bacteriological quality. The instrument used in this research was the observation sheets and laboratory tests. Data was analyzed by univariate, bivariate analysis using chi square test. The results showed from 41 DAM, there are 13 (31.7%)  less sanitary conditions of hygiene, 17 (41.5%) is enough and 11 (26.8%) good,  then  quality of bakteriologis are 30 (73%) eligible and 11 (27%)  not eligible. There is no relationship betwen locations (p = 0.698) and bacteriological quality, no relationship building (p=0.840) with the bacteriological quality, no relationship of production equipment (p=0.618) with the bacteriological quality, no relationship of production proces (p=0.986) with the bacteriological quality and there is no relationship of sanitation facilities (p=0.515) with bacteriological quality.The most of sanitation hygiene condition is notrelationshipto bacteriological quality of reffil drinking water depo. 
Strategi Guru Agama Islam dalam Pembinaan Akhlakul Karimah Siswa SMA Negeri I Bukit Kabupaten Bener Meriah Husaini, Husaini
Idarah (Jurnal Pendidikan dan Kependidikan) Vol 2 No 1 (2018): Edisi Januari-Juni
Publisher : Jurusan Manajemen Pendidikan Islam Fakultas Ilmu Tarbiyah dan Keguruan (FTIK) IAIN Lhokseumawe.

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Abstract

Dewasa ini pendidikan agama menjadi sorotan tajam masyarakat. Perilaku menyimpang peserta didik dan remaja yang tidak sesuai dengan norma agama, mendorong berbagai pihak mempertanyakan efektivitas pelaksanaan pendidikan agama di sekolah. Penelitian ini membahas (1) peranan strategi guru pendidikan agama Islam dalam pembinaan akhlakul karimah; (2) bentuk pembinaan akhlakul karimah yang dilakukan guru pendidikan agama Islam; dan (3) faktor pendukung dan penghambat pembinaan akhlaqul karimah siswa di SMA Negeri I Bukit Kabupaten Bener Meriah. Penelitian ini menggunakan pendekatan kualitatif diskriptif. Hasil penelitian yaitu (1) strategi guru pendidikan agama Islam dalam pembinaan akhlakul karimah dilakukan melalui pembiasaan, keteladanan, anjuran atau nasehat, larangan, pengawasan dan hukuman; (2) pembinaan akhlak di SMA Negeri I Bukit terbagi menjadi dua yaitu intrakurikuler yang difokuskan pada kajian keagamaan yang terdiri dari Aqidah/Tauhid, dan ekstrakurikuler, antara lain olah raga, darmawisata, dan kegiatan social; dan bentuk pembinaan akhlak dilakukan dengan membaca do‟a membaca Al-Qur‟an, shalat Zhuhur dan memperingati hari Besar Islam seperti Tahun baru dan Maulid Nabi; dan (3) faktor pendukung adanya kebiasaan atau tradisi yang berprilaku baik di sekolah dan Faktor penghambat, pergaulan lingkungan masyarakat yang negatif. Nowadays, religious education is in the public spotlight. The deviant behavior of students and adolescents who are not in accordance with religious norms, encourages various parties to question the effectiveness of the implementation of religious education in schools. This study discusses (1) the role of Islamic religious education teacher strategies in the formation of akhlakul karimah; (2) the form of moral moral guidance carried out by Islamic religious education teachers; and (3) supporting factors and barriers to the development of students' morality in Bukit I State High School, Bener Meriah Regency. This study uses a descriptive qualitative approach. The results of the study are (1) the strategy of Islamic religious education teachers in the formation of morality is done through habituation, exemplary, advice or advice, prohibition, supervision and punishment; (2) moral development in I Bukit State High School is divided into two, namely intracurricular which is focused on religious studies consisting of Aqidah / Tauhid, and extracurricular activities, including sports, excursions and social activities; and the form of moral formation is carried out by reading the prayer of reading the Qur'an, the midnight prayer and commemorating the Islamic holidays such as the new year and the birthday of the Prophet; and (3) supporting factors for habits or traditions that behave well in school and inhibiting factors, community environment (association) that is less supportive.