We follow the alignment-assisted orientation technique proposed by Zhang et al. [Phys. Rev. A 83, 043410 (2011)] to experimentally demonstrate a substantial enhancement of the field-free orientation by using a combination of singleand two-color laser pulses. When a two-color orienting pulse is preceded by a single-color aligning pulse by a suitable time, the resulting orientation is thrice as l...

Wind tunnel engineers require measurements of position and orientation of aerospace models under test conditions. The measurement technique must be non-contact, nonintrusive and have a high sample rate. Videometric techniques based on multiple, synchronised CCD cameras can supply position and orientation data at 30Hz or 60Hz with acceptable accuracies. This paper describes a data acquisition sy...

Background Diffusion-Tensor cardiovascular magnetic resonance (DT-CMR) is capable of mapping myocardial fiber orientation [1,2]. It has been demonstrated in myocardial infarction (MI) murine models that DT-CMR can identify the effects of stem cell therapy on myocardial fiber orientation [3]. However, it remains to be seen if this recent work is translatable to large animal and clinical studies....

This paper describes a technique for characterization and segmentation of anisotropic patterns that exhibit a single local orientation. Using Gaussian derivatives we construct a gradient-square tensor at a selected scale. Smoothing of this tensor allows us to combine information in a local neighborhood without canceling vectors pointing in opposite directions. Whereas opposite vectors would can...

We demonstrate an optical Fourier filtering method which can be used to characterize subcellular morphology during dynamic cellular function. In this paper, our Fourier filters were based on two-dimensional Gabor elementary functions, which can be tuned to sense directly object size and orientation. We utilize this method to quantify changes in mitochondrial and nuclear structure during the fir...

objective: this study investigated the relationship between resilience and religious orientation (internal and external) with posttraumatic growth (ptg). this study also examined the impact of marriage and sex variables on growth . method: participants were selected based on prescreening of a larger group of students enrolled in the university of shiraz. participants were recruited in two stage...

poorinformative websites of hotels in iranian tourist destinations has turned to a deterrent factor in attracting potential tourists from all over the world. the main goal of this study was to identify effective solutions for improving the informative effectiveness of iranian top hotels’ websites based on interviews with 25 hotel managers (i.e. ceos, public relations managers and it managers). ...

introduction: in the past 2 decades, research findings established achievement goal theory as a powerful framework for conceptualizing difference in the quality of student’s engagement, persistence on task, and academic resilience. so the present study examined the relationship between achievement goal orientations and academic resilience. method: participants were 606 students (307 girls and 2...

A key challenge for ecologists is to quantify, explain and predict the ecology and behaviour of animals from knowledge of their basic physiology. Compared to our knowledge of many other types of distribution and behaviour, and how these are linked to individual function, we have a poor level of understanding of the causal basis for orientation behaviours. Most explanations for patterns of anima...

The orientation of fluorescent molecules on the surface of an aerosol particle has been determined by using a new technique, morphology-dependent photoselection. The excitation spectrum of the angularly averaged fluorescence from a single levitated particle is measured by using an integrating sphere levitator. By utilizing the relative intensities of resonant peaks in this spectrum and knowledg...