2,554,206 research outputs found
High energy leptons from muons in transit
The differential energy distribution for electrons and taus produced from
lepton pair production from muons in transit through materials is numerically
evaluated. We use the differential cross section to calculate underground
lepton fluxes from an incident atmospheric muon flux, considering contributions
from both conventional and prompt fluxes. An approximate form for the charged
current differential neutrino cross section is provided and used to calculate
single lepton production from atmospheric neutrinos. We compare the fluxes of
underground leptons produced from incident muons with those produced from
incident neutrinos and photons from muon bremsstrahlung. We discuss their
relevance for underground detectors.Comment: 11 pages, 9 figures v2: Revised to include the calculation of muon
bremsstrahlung events in comparison to pair production events. 1 new figur
Lamb wave near field enhancements for surface breaking defects in plates
Near field surface wave ultrasonic enhancements have previously been used to detect surface breaking defects in thick samples using Rayleigh waves. Here, we present analogous surface wave enhancements for Lamb waves propagating in plates. By tracking frequency intensities in selected regions of time-frequency representations, we observe frequency enhancement in the near field, due to constructive interference of the incident wave mode with those reflected and mode converted at the defect. This is explained using two test models; a square based notch and an opening crack, which are used to predict the contribution to the out-of-plane displacement from the reflected and mode converted waves. This method has the potential to provide a reliable method for the near field identification and characterisation of surface breaking defects in plates
The Digitized Second Palomar Observatory Sky Survey (DPOSS) II: Photometric Calibration
We present the photometric calibration technique for the Digitized Second
Palomar Observatory Sky Survey (DPOSS), used to create seamless catalogs of
calibrated objects over large sky areas. After applying a correction for
telescope vignetting, the extensive plate overlap regions are used to transform
sets of plates onto a common instrumental photometric system. Photometric
transformations to the Gunn gri system for each plate, for stars and galaxies,
are derived using these contiguous stitched areas and an extensive CCD imaging
library obtained for this purpose. We discuss the resulting photometric
accuracy, survey depth, and possible systematic errors.Comment: 25 pages, 13 figures. Accepted to AJ. Some figures shrunk or missing
to limit file size; the full paper is available at
http://www.sdss.jhu.edu/~rrg/science/papers/photometrypaper.ps.g
Motion Sickness Symptomatology of Labyrinthine Defective and Normal Subjects During Zero Gravity Maneuvers
Motion sickness symptomology of labyrinthine defective and normal human subjects during zero gravity maneuver
KEDUDUKAN AHLI WARIS NON MUSLIM DALAM KEWARISAN ISLAM (STUDI KASUS PUTUSAN NOMOR : 1578/PDT.G/2010/PA.JT)
Salah satu pembahasan dalam ilmu mawaris adalah pembahasan
tentang penghalang dalam kewarisan. Penghalang dalam kewarisan ada
tiga penyebabnya yaitu pembunuhan yang disengaja, beda agama dan
perbudakan. Beda agama adalah apabila antara ahli waris dan pewaris
salah satunya beragama Islam dan yang lain tidak beragama Islam.
Tentang perbedaan agama antara pewaris dan ahli waris, dapat
menggugurkan hak seseorang untuk mewarisi harta peninggalan.
Rumusan masalah dalam penelitian ini ialah bagaimana kedudukan
ahli waris non muslim dalam kewarisan Islam dan apakah pertimbangan
Hakim dalam putusan nomor : 1578/Pdt.G/2010/PA.JT telah sesuai
dengan hukum Islam serta Kompilasi Hukum Islam.
Metode pendekatan yang digunakan peneliti adalah library
research (yurudis normatif). Yaitu suatu pendekatan alternatif yang
menganalisa bahan-bahan pustaka di bidang hukum yang norma-
normanya tertulis dan spesifikasi penelitian deskriptis analitis, yaitu
dengan menggunakan metode dan teori ilmu-ilmu sosial tentang hukum
untuk membantu peneliti dalam melakukan analisis.
Hasil dari penelitian ini diperoleh kesimpulan yakni : (1) Hukum
Islam menegaskan prinsip dalam kewarisan bahwa ahli waris non muslim
tidak mempunyai kedudukan untuk mewarisi harta dari pewaris muslim,
sebagaimana yang telah diatur dalam Al-Qur’an, Hadits serta Kompilasi
Hukum Islam. (2) Dalam pertimbangan hakim Pengadilan Agama Jakarta
Timur dianggap telah terjadi kekeliruan mengenai pemahaman tentang
kompetensi absolut Pengadilan Negeri Jakarta Timur yang menetapkan
masalah kewarisan Islam, karena pada dasarnya yang mempunyai
kewenangan absolut ialah Pengadilan Agama Jakarta Timur. Hal tersebut
menimbulkan dasar penolakan hakim Pengadilan Agama menolak
gugatan perkara ahli waris, yang menyebabkan ahli waris non muslim
memperoleh kembali hak kewarisannya. Hasil dari putusan tersebut
ditinjau secara sudut pandang Islam sangat bertentangan dengan Al-
Qur’an dan Hadits serta ketentuan menurut perspektif Kompilasi Hukum
Islam, bahwa mengenai sistem kewarisan Islam tidak mengakui ahli waris
non muslim sebagai ahli waris dari pewaris muslim
Parity Breaking Medium and Squeeze Operators
The transition between a Minkowski space region and a parity breaking medium
domain is thoroughly discussed. The requirement of continuity of the field
operator content across the separating boundary of the two domains leads to
Bogolyubov transformations, squeezed pairs states and squeeze operators that
turn out to generate a functional SU(2) algebra. According to this algebraic
approach, the reflection and transmission probability amplitude across the
separating boundary are computed. The probability rate of the emission or
absorption of squeezed pairs out of the vacuum (generalization of the
Sauter-Schwinger-Nikishov formula) is obtained.Comment: 22 pages, slightly modified, arXiv admin note: text overlap with
arXiv:1109.344
Coaxial cable stripping device facilitates RF cabling fabrication
Coaxial cable stripping device assures clean, right angled shoulder for RF cable connector fabrication. This method requires minimal skill and creates a low voltage standing wave ratio and mechanical stability in the interconnecting RF Cables
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