Mohammad Munir
Laboratorium Fisika Atom & Nuklir, Jurusan Fisika Fakultas MIPA UNDIP

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PENENTUAN KONSENTRASI AKTIVITAS URANIUM DARI INDUSTRI FOSFAT MENGGUNAKAN DETEKTOR ZNS(AG) Setiani, Indri; Munir, Mohammad; Firdausi, K. Sofjan; Bunawas, Bunawas
BERKALA FISIKA Vol 9, No 2 (2006): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

The activity concentration measurement of uranium (U238) in yellowcake sample which is coming from  phosphate fertilizer industry P.T. PETRO KIMIA Gresik  by using ZnS(Ag) detector has been done. In order to do this measurement, it is needed to callibrate and calculate the minimum detectable level of the detector. From the five samples that contain different yellowcake concentration, 400 mg of each samples were placed on five 2-inches-diameter stainless steel planchettes. HNO3 solution were added and the samples were shaken in order to make the samples as homogeneous as possible. The samples were totally evaporated under an infrared lamp until dry. Then they were counted by ZnS(Ag) detector. The uranium activity concentration measurement result of this method shows that sample with highest concentration of yellowcake (100%) have concentration activity 2,37 Bq/mg. While the sample with lowest concentration of yellowcake (37,5%) have concentration activity 0,95 Bq/mg. Key words     : uranium, phosphate fertilizer industry, ZnS(Ag) detector, yellowcake
OZONE GENERATOR BY USING DIELECTRIC BARRIER DISCHARGE PLASMA TECHNOLOGY WITH SPIRAL-CYLINDER CONFIGURATION: COMPARISON BETWEEN OXYGEN AND AIR AS SOURCES Nur, Muhammad; Supriati, Aris; Hari Setyaningrum, Dyah; Gunawan, Gunawan; Munir, Mohammad; Sumariyah, Sumariyah
BERKALA FISIKA Vol 12, No 2 (2009): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

The ozone generator with Dielectric Barrier Discharge Plasma Technology (DBDPT) with Spiral-cylinder configuration has been developed. DBDP Reactor was constructed with spiral wire and cylinder. Plasma condition has been generated by using AC high voltage Ozone has been produced by this technology with oxygen and dry air as sources for ozone generating. In this research we found that the concentration of ozone produced increases with increasing voltage with a time constant. This concentration also increases with increasing time in certain applied voltage. Ozone concentration was higher than the concentration of dissolved ozone in water. Dissolved ozone in water was only 10 % of ozone produced and only 7 % for dry air as source. Oxygen as source of ozone was better than dry air; both for ozone produced and dissolved ozone in water.   Keyword : Ozone, Spiral-cylinder, DBDP, Oxygen, Dry air
Akad Qordhul Hasan Sebagai Strategi Baznas Jatim Dalam Mengoptimalisasikan Dana Zakat Untuk Pemberdayaan Ummat Munir, Mohammad
Jurnal Justisia Ekonomika: Magister Hukum Ekonomi Syariah Vol 2, No 1 (2018): Jurnal Justisia Ekonomika
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/justeko.v2i1.1695

Abstract

              The formulation of the research problem in this thesis can be described as follows: First, How is the strategy of Baznas East Java in optimizing the zakat fund, second, How is the implementation of Qordhul Hasan in Baznas East Java, the third is the qordhul Hasan agreement in accordance with the fatwa Number: 19 / DSN-MUI / IV / 2001.             This qualitative research approach is research using explorative research method and descriptive research method. Data collection method is by interview with snowball technique, observation, documentation and literature study through several book and internet sources, hence the result of research finding of Baznas East Java in optimizing zakat fund there are five programs that is East Java Smart, East Java Healthy, East Java Devotion, East Java is prosperous and East Java cares. The empowerment of zakat makes the mustahik have the power of the development of resources of the community in the form of creativity, competence and thinking power considering the economic growth and technology so rapidly will greatly affect the ability of each individual in fulfilling the needs of his life then with prosperous Java Baznas program includes the aid of work tools, work in collaboration with BLK and Cooperation services provide the skills of UMKM and revolving capital assistance that partner with or work together with mosque board, Reading Qur?an community and county Baznas who know the condition of the mustahik by making a letter of application and ready to be surveyed to pilgrims who will get capital assistance. The procedure is that the aid will be handed over to the mosque administrator, reading Qur?an community and the county Baznas for the next of the same committee is handed over to mustahik who is well worthy of receiving assistance.        The result of the research showed that Eat Java Baznas is in accordance with the fatwa Number: 19 / DSN-MUI / IV / 2001 which reads "That one of the means of economic improvement that can be done by LKS / BAZNAS is channeling funds through Al-Qordh principle, to the customer or mustahik provided that the client / mustahik is obliged to return the funds received in accordance with the agreement. If the Client / Mustahik cannot refund part or all of his liability for his / her inability then may extend the repayment period or partially off or off his / her liabilities. Keywords: Qordhul Hasan Agreement, Strategy, Optimize, Zakat Empowerment