Pengaruh Faktor Sosial dan Faktor Pribadi terhadap Keputusan Pembelian Kamera Dslr Canon di Kota Pekanbaru

Penelitian ini dilakukan di Kota Pekanbaru. Tujuan penelitian ini untuk mengetahui bagaimana pengaruh faktor sosial dan faktor pribadi terhadap keputusan pembelian kamera DSLR CANON di Kota Pekanbaru baik itu secara parsial maupun simultan dan untuk mengidentifikasi faktor yang paling besar mempengaruhi keputusan pembelian konsumen dalam membeli kamera DSLR CANON di Kota Pekanbaru. Dalam penelitian ini yang menjadi populasi adalah seluruh konsumen yang memiliki dan menggunakan kamera DSLR CANON di Kota Pekanbaru. Sampel diambil berdasarkan metode purposive sampling. Metode analisa data yang penulis gunakan pada penelitian ini adalah metode kualitatif yakni analisis dengan uji simultan dan uji parsial(analisis regresi linear berganda dengan bantuan SPSS Windows versi 16).Dari hasil perhitungan yang menggunakan regresi linear berganda dapat diketahui bahwa terdapat pengaruh yang signifikan positif antara variabel bebas (X1 = Faktor Sosial dan X2= Faktor Pribadi) terhadap variabel terikat (Y= Keputusan Pembelian). Persamaan regresi Y = 3.850 + 0.465 X1 + 0.233 X2 + e. Nilai koefisien korelasi (R2) sebesar 0,470. Hal ini menunjukkan bahwa pengaruh variabel X1 dan X2 terhadap Y adalah sebesar 47% dan sisanya dipengaruhi oleh variabel lain. Selanjutnya untuk uji-F diperoleh hasil perhitungan nilai fhitung>ftabel yaitu 46,514>3,08. Ini berarti variabel bebas (X1 dan X2) secara serempak berpengaruh signifikan positif terhadap variabel terikat (Y). Sedangkan variabel bebas yang paling dominan dalam mempengaruhi variabel terikat yaitu variabel X1 (Faktor Sosial) dengan hasil thitung > ttabel yaitu sebesar 4,192>1,98. Rekomendasi yang dapat penulis ajukan adalah peminat akan dunia fotografi di zaman sekarang ini sangat banyak, baik itu komersil ataupun penghobi.. Sebaiknya juga sebelum melakukan pembelian terlebih dahulu mencari informasi tentang kamera DSLR tersebut agar bisa disesuaikan dengan selera dan harga yang di inginkan responden.Kata kunci: Faktor Sosial, Faktor Pribadi, Keputusan Pembelia

Theoretical studies on structural and decay properties of Z=119Z=119 superheavy nuclei

In this manuscript, we analyze the structural properties of $Z=119$ superheavy nuclei in the mass range of 284 $\le$ A $\le$ 375 within the framework of deformed relativistic mean field theory (RMF) and calculate the binding energy, radii, quadrupole deformation parameter, separation energies and density profile. Further, a competition between possible decay modes such as $\alpha-$decay, $\beta-$decay and spontaneous fission (SF) of the isotopic chain of $Z=119$ superheavy nuclei under study is systematically analyzed within self-consistent relativistic mean field model. Moreover, our analysis confirmed that $\alpha-$decay is restricted within the mass range 284 $\leq$ A $\leq$ 296 and thus being the dominant decay channel in this mass range. However, for the mass range 297 $\leq$ A $\leq$ 375 the nuclei are unable to survive fission and hence SF is the principal mode of decay for these isotopes. There is no possibility of $\beta-$decay for the considered isotopic chain. In addition, we forecasted the mode of decay $^{284-296}$119 as one $\alpha$ chain from $^{284}$119 and $^{296}$119, two consistent $\alpha$ chains from $^{285}$119 and $^{295}$119, three consistent $\alpha$ chains from $^{286}$119 and $^{294}$119, four consistent alpha chains from $^{287}$119, six consistent alpha chains from $^{288-293}$119. Also from our analysis we inferred that for the isotopes $^{264-266,269}$Bh both $\alpha$ decay and SF are equally competent and can decay via either of these two modes. Thus, such studies can be of great significance to the experimentalists in very near future for synthesizing $Z=119$ superheavy nuclei.Comment: 14 pages, 6 figures. arXiv admin note: text overlap with arXiv:1611.00232, arXiv:1704.0315

Structural and decay properties of Z=132,138Z=132,138 superheavy nuclei

In this paper, we analyze the structural properties of $Z=132$ and $Z=138$ superheavy nuclei within the ambit of axially deformed relativistic mean-field framework with NL$3^{*}$ parametrization and calculate the total binding energies, radii, quadrupole deformation parameter, separation energies, density distributions. We also investigate the phenomenon of shape coexistence by performing the calculations for prolate, oblate and spherical configurations. For clear presentation of nucleon distributions, the two-dimensional contour representation of individual nucleon density and total matter density has been made. Further, a competition between possible decay modes such as $\alpha$-decay, $\beta$-decay and spontaneous fission of the isotopic chain of superheavy nuclei with $Z=132$ within the range 312 $\le$ A $\le$ 392 and 318 $\le$ A $\le$ 398 for $Z=138$ is systematically analyzed within self-consistent relativistic mean field model. From our analysis, we inferred that the $\alpha$-decay and spontaneous fission are the principal modes of decay in majority of the isotopes of superheavy nuclei under investigation apart from $\beta$ decay as dominant mode of decay in $^{318-322}138$ isotopes.Comment: 16 pages, 10 figures , 8 table

Mobile Computing in Physics Analysis - An Indicator for eScience

This paper presents the design and implementation of a Grid-enabled physics analysis environment for handheld and other resource-limited computing devices as one example of the use of mobile devices in eScience. Handheld devices offer great potential because they provide ubiquitous access to data and round-the-clock connectivity over wireless links. Our solution aims to provide users of handheld devices the capability to launch heavy computational tasks on computational and data Grids, monitor the jobs status during execution, and retrieve results after job completion. Users carry their jobs on their handheld devices in the form of executables (and associated libraries). Users can transparently view the status of their jobs and get back their outputs without having to know where they are being executed. In this way, our system is able to act as a high-throughput computing environment where devices ranging from powerful desktop machines to small handhelds can employ the power of the Grid. The results shown in this paper are readily applicable to the wider eScience community.Comment: 8 pages, 7 figures. Presented at the 3rd Int Conf on Mobile Computing & Ubiquitous Networking (ICMU06. London October 200