An extraction method has been used to determine cerium144 in vegetation and soil. The principle advantages of the method are, (1) equilibration of cerium carrier and activity in the initial step of the procedure, (2) provision for the determination of strontium-90 and cesium-137 in vegetation and strontium-90 and normal cerium in soil. The results of measurements on fourteen wheat samples col l...

This paper describes the interaction of the NEMI recommended lead-free solder for reflow assembly (Sn3.8Ag0.7Cu) with different commercial printed wiring board (PWB) platings. It also discusses the effects of plating type and manufacturer on the strength of the lead-free solder joints. PWBs from two different manufacturers with the same four types of plating were examined. The platings were org...

     Histamine H3 receptor subtype has been the target of several recent drug development programs. Quantitative structure-activity relationship (QSAR) methods are used to predict the pharmaceutically relevant properties of drug candidates whenever it is applicable. The aim of this study was to compare the predictive powers of three different QSAR techniques, namely, multiple linear regression ...

     Histamine H3 receptor subtype has been the target of several recent drug development programs. Quantitative structure-activity relationship (QSAR) methods are used to predict the pharmaceutically relevant properties of drug candidates whenever it is applicable. The aim of this study was to compare the predictive powers of three different QSAR techniques, namely, multiple linear regression ...

Perkembangan teknologi informasi yang begitu pesat telah diterapkan di berbagai kegiatan guna untuk memberikan kemudahan dan lebih tepat guna. Salah satunya adalah penggunaan perangkat eletronik dikombinasikan dengan jaringan internet, muncul pembelajaran dikenal online learning . Tidak semua sekolah siap melakukan SMA Negeri 1 Waikabubak, mata pelajaran kimia salah satu cukup rumit dipelajari ...

Penelitian ini bertujuan untuk mengetahui Pengaruh Produk Pembiayaan Muralaba (KPR Platinum, KPR FLPP, Swagriya) terhadap laba bersih pada PT. BTN Syariah Kantor Cabang Balikpapan. Variabel yang digunakan dalam penelitian terdiri dari variabel dependen dan independen. Laba sebagai sedangkan FLPP Swagriya Populasi sampel adalah 1 (satu) bank syariah terdaftar di Bank Indonesia. Analisis analisis...

A method for non-destructively tracking the integrity of flip chip solder joints through life is investigated in this paper. An industry standard double-sided PCB was designed and manufactured with 14 chips to assess failure patterns each joint lifetime vibration tests. Two configurations finish were tested, Electro Nickel Immersion Gold (ENIG) Hot Air Surface Levelled lead (Pb HASL) using auto...

Media pembelajaran merupakan alat yang digunakan guru dalam memberikan materi belajar di kelas. Penelitian ini akan menunjukkan pengaruh media nyata terhadap hasl IPA akar dan batang pada kelas IV SDN Gempol 1. menggunaka jenis penelitian kuantitatif pra eksperimen. Pengumpulan data menggunakan soal tes dengan uji validitas reliabilitas instrumen. Teknik analisis N-Gain perhitungan selisih anta...

Abstrak: Penelitian ini bertujuan untuk mengetahui dampak financial distress terhadap perspektif pasar. Data penelitian menggunakan data sekunder dari laporan keuangan perusahaan retail yang tercatat di Bursa Efek Indonesia (BEI) tahun 2019-2020. Metode digunakan dalam adalah metode deskriptif dan verifikatif. Populasi BEI. Sampel pada purposive sampling sebanyak 22 perusahaan. Teknik analisis ...

As the laminate substrate industry moves from Hot Air Solder Level (HASL) finishes, alternate plating finishes are being proposed such as immersion gold/electroless nickel, electroless palladium and electroless silver. This paper presents results of an evaluation of the thermosonic gold ball wire bondability of electroless palladium. Two palladium thicknesses, with and without a nickel underlay...