62 research outputs found
Inhomogeneous critical current in nanowire superconducting single-photon detectors
A superconducting thin film with uniform properties is the key to realize
nanowire superconducting single-photon detectors (SSPDs) with high performance
and high yield. To investigate the uniformity of NbN films, we introduce and
characterize simple detectors consisting of short nanowires with length ranging
from 100nm to 15{\mu}m. Our nanowires, contrary to meander SSPDs, allow probing
the homogeneity of NbN at the nanoscale. Experimental results, endorsed by a
microscopic model, show the strongly inhomogeneous nature of NbN films on the
sub-100nm scale.Comment: 10 pages, 4 figure
Positive solutions for m-point p-Laplacian fractional boundary value problem involving Riemann Liouville fractional integral boundary conditions on the half line
This paper investigates the existence of positive solutions for m-point
p-Laplacian fractional boundary value problem involving Riemann Liouville
fractional integral boundary conditions on the half line via the Leray-Schauder
Nonlinear Alternative theorem and the use and some properties of the Green
function. As an application, an example is presented to demonstrate our main
result
Photon-number resolving detector based on a series array of superconducting nanowires
We present the experimental demonstration of a superconducting photon number
resolving detector. It is based on the series connection of N superconducting
nanowires, each connected in parallel to an integrated resistor. The device
provides a single voltage readout, proportional to the number of photons
absorbed in distinct nanowires. Clearly separated output levels corresponding
to the detection of n=1-4 photons are observed in a 4-element detector
fabricated from an NbN film on GaAs substrate, with a single-photon system
quantum efficiency of 2.6% at the wavelength of 1300nm. The series-nanowire
structure is promising in view of its scalability to large photon numbers and
high efficiencies.Comment: 12 pages, 6 figure
Existence and nonexistence of positive solutions for the second-order m-point eigenvalue impulsive boundary value problem
This paper is devoted to the study of the existence and nonexistence of positive solu-tions for a second-order m-point eigenvalue impulsive boundary value problem. We use the fixed point theorems on the cones in order to achieve our results. 2010 Mathematics Subject Classification: 34B37; 34B15; 34B18; 34B4
Anatomy and clinical importance of the extracranial clivus and surrounding structures
The aim of this study was to reveal the clinical importance of measurements taken from the pharyngeal tubercle (PT) to various anatomical structures around the extracranial clivus. Twenty-six adult dry Anatolian skulls were examined. The extracranial clivus and PT were used as landmarks from which various distances were measured using a digital caliper accurate to 0.01 mm. The following mean distances from the PT were observed; foramen lacerum (FL) (L: 17.15 mm, R: 17.4 mm); medial external margin of the carotid canal (CC) (L: 26.7 mm, R: 27.5 mm); anterior tip of occipital condyle (OC) (L: 16.4 mm, R: 16.3 mm); anterior margin of foramen magnum (FM) (10.8 mm); foramen ovale (FO) (L: 25.9 mm, R: 29.1); medial margin of the jugular fossa (JF) (L: 25.4 mm, R: 25.7 mm); medial external margin of the hypoglossal canal (HC) (L: 20.0 mm, R: 19.9 mm). Mean bilateral distances were: LFO-RFO: 45.34 mm; LFL-RFL: 20.1 mm; LCC-RCC: 52.1 mm; LOC-ROC: 17.6 mm; LJF-RJF: 45.2 mm; LHC-RHC: 33.5 mm. The following mean distances were observed from the FM: FM-OC (L: 8.3 mm, R: 9.3 mm); FM-HC (L: 17.8 mm, R: 17.4 mm). Also the mean distance of OC-HC were observed (L: 11.7 mm, R: 11.4 mm). Present measurements suggest that the PT can be used as an anatomical landmark during surgery involving clival pathology. However, the anatomy and variations of the extracranial clivus and surrounding structures must be taken into consideration.</p
Abdominal epilepsy as an unusual cause ofabdominal pain: a case report.
Introduction: Abdominal pain, in etiology sometimes difficult to be
defined, is a frequent complaint in childhood. Abdominal epilepsy is a
rare cause of abdominal pain. Objectives: In this article, we report on
5 year old girl patient with abdominal epilepsy. Methods: Some
investigations (stool investigation, routine blood tests,
ultrasonography (USG), electrocardiogram (ECHO) and electrocardiograpy
(ECG), holter for 24hr.) were done to understand the origin of these
complaints; but no abnormalities were found. Finally an EEG was done
during an episode of abdominal pain and it was shown that there were
generalized spikes especially precipitated by hyperventilation. The
patient did well on valproic acid therapy and EEG was normal 1 month
after beginning of the treatment. Discussion: The cause of chronic
recurrent paroxymal abdominal pain is difficult for the clinicians to
diagnose in childhood. A lot of disease may lead to paroxysmal
gastrointestinal symptoms like familial mediterranean fever and
porfiria. Abdominal epilepsy is one of the rare but easily treatable
cause of abdominal pain. Conclusion: In conclusion, abdominal epilepsy
should be suspected in children with recurrent abdominal pain
Minat Nasabah Non Muslim dalam Memilih Bank Mandiri Syariah di Kupang-NTT
Skripsi ini membahas tentang keberadaan Bank Syariah di Kupang-NTT yang masyarakatnya bermayoritas beragama non muslim serta bagaimana perilaku masyarakat non muslim di Kupang-NTT terhadap keputusan dalam memilih menggunakan jasa perbankan Syariah di Kupang-NTT. Penelitian ini menggunakan data primer dengan cara melakukan wawancara langsung kepada nasabah non muslim di Kupang-NTT dengan menggunakan pendekatan kualitatif dan metode triangulasi data. Faktor yang mempengaruhi masyarakat non muslim Bank Syariah di Kupang-NTT adalah bunga kredit yang rendah dan tidak ada biaya administrasi, selain bebas biaya administrasi dana yang positif dan prosedur-prosedur sesuai dengan ajaran agama
- …