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1

INTERIOR DETAIL, EASTERN HEMICYCLE, SALOON. WILLIAM HAMILTON PLACED BRONZE AND ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

INTERIOR DETAIL, EASTERN HEMICYCLE, SALOON. WILLIAM HAMILTON PLACED BRONZE AND MARBLE SCULPTURE IN SOME OF THE HEMICYCLE NICHES. ONE OF THE NICHES HOUSED A ?CANNON STOVE? FOR HEATING THE ROOM IN THE COLDER MONTHS - The Woodlands, 4000 Woodlands Avenue, Philadelphia, Philadelphia County, PA

2

Where do imaging clinical trials take place?  

Cancer.gov

Imaging clinical trials take place in doctor's offices, cancer centers, other medical centers, community hospitals and clinics, and veterans' and military hospitals in cities and towns across the United States and in other countries. Imaging clinical

3

Guided Image Filtering Supplementary Technical Details  

E-print Network

., Tang, X.: Single image haze removal using dark channel prior. CVPR (2009) #12; near the object boundaries. The loose constraint is also required in haze removal as in [3]. ThereforeGuided Image Filtering Supplementary Technical Details 1 Derivation of the Filter Kernel

Bernstein, Phil

4

Most Detailed Image of the Crab Nebula  

NASA Technical Reports Server (NTRS)

This new Hubble image -- one among the largest ever produced with the Earth-orbiting observatory -- shows the most detailed view so far of the entire Crab Nebula ever made. The Crab is arguably the single most interesting object, as well as one of the most studied, in all of astronomy. The image is the largest image ever taken with Hubble's WFPC2 workhorse camera.

The Crab Nebula is one of the most intricately structured and highly dynamical objects ever observed. The new Hubble image of the Crab was assembled from 24 individual exposures taken with the NASA/ESA Hubble Space Telescope and is the highest resolution image of the entire Crab Nebula ever made.

2005-01-01

5

HUBBLE CAPTURES DETAILED IMAGE OF URANUS' ATMOSPHERE  

NASA Technical Reports Server (NTRS)

Hubble Space Telescope has peered deep into Uranus' atmosphere to see clear and hazy layers created by a mixture of gases. Using infrared filters, Hubble captured detailed features of three layers of Uranus' atmosphere. Hubble's images are different from the ones taken by the Voyager 2 spacecraft, which flew by Uranus 10 years ago. Those images - not taken in infrared light - showed a greenish-blue disk with very little detail. The infrared image allows astronomers to probe the structure of Uranus' atmosphere, which consists of mostly hydrogen with traces of methane. The red around the planet's edge represents a very thin haze at a high altitude. The haze is so thin that it can only be seen by looking at the edges of the disk, and is similar to looking at the edge of a soap bubble. The yellow near the bottom of Uranus is another hazy layer. The deepest layer, the blue near the top of Uranus, shows a clearer atmosphere. Image processing has been used to brighten the rings around Uranus so that astronomers can study their structure. In reality, the rings are as dark as black lava or charcoal. This false color picture was assembled from several exposures taken July 3, 1995 by the Wide Field Planetary Camera-2. CREDIT: Erich Karkoschka (University of Arizona Lunar and Planetary Lab) and NASA

2002-01-01

6

Hubble Captures Detailed Image of Uranus' Atmosphere  

NASA Technical Reports Server (NTRS)

Hubble Space Telescope has peered deep into Uranus' atmosphere to see clear and hazy layers created by a mixture of gases. Using infrared filters, Hubble captured detailed features of three layers of Uranus' atmosphere.

Hubble's images are different from the ones taken by the Voyager 2 spacecraft, which flew by Uranus 10 years ago. Those images - not taken in infrared light - showed a greenish-blue disk with very little detail.

The infrared image allows astronomers to probe the structure of Uranus' atmosphere, which consists of mostly hydrogen with traces of methane. The red around the planet's edge represents a very thin haze at a high altitude. The haze is so thin that it can only be seen by looking at the edges of the disk, and is similar to looking at the edge of a soap bubble. The yellow near the bottom of Uranus is another hazy layer. The deepest layer, the blue near the top of Uranus, shows a clearer atmosphere.

Image processing has been used to brighten the rings around Uranus so that astronomers can study their structure. In reality, the rings are as dark as black lava or charcoal.

This false color picture was assembled from several exposures taken July 3, 1995 by the Wide Field Planetary Camera-2.

The Wide Field/Planetary Camera 2 was developed by the Jet Propulsion Laboratory and managed by the Goddard Spaced Flight Center for NASA's Office of Space Science.

This image and other images and data received from the Hubble Space Telescope are posted on the World Wide Web on the Space Telescope Science Institute home page at URL http://oposite.stsci.edu/pubinfo/

1996-01-01

7

Place-Identity in a School Setting: Effects of the Place Image  

ERIC Educational Resources Information Center

Studies on place identity show positive relationships between the evaluation of a place and mechanisms involved in place identification. However, individuals also identify with places of low social prestige (places that bear a negative social image). Few authors investigate the nature of place identity processes in this case. The goal of this…

Marcouyeux, Aurore; Fleury-Bahi, Ghozlane

2011-01-01

8

Interacting with Image Sequences: Detail-in-Context and Thumbnails  

E-print Network

real- estate problem. Based on previous literature and on our observations of radiologists describes a controlled experiment in which we examined the way users interact with detail up to eight such films with a total number of more than a hundred images. Due to the high costs

Carpendale, Sheelagh

9

Dynamic range compression and detail enhancement algorithm for infrared image.  

PubMed

For infrared imaging systems with high sampling width applying to the traditional display device or real-time processing system with 8-bit data width, this paper presents a new high dynamic range compression and detail enhancement (DRCDDE) algorithm for infrared images. First, a bilateral filter is adopted to separate the original image into two parts: the base component that contains large-scale signal variations, and the detail component that contains high-frequency information. Then, the operator model for DRC with local-contrast preservation is established, along with a new proposed nonlinear intensity transfer function (ITF) to implement adaptive DRC of the base component. For the detail component, depending on the local statistical characteristics, we set up suitable intensity level extension criteria to enhance the low-contrast details and suppress noise. Finally, the results of the two components are recombined with a weighted coefficient. Experiment results by real infrared data, and quantitative comparison with other well-established methods, show the better performance of the proposed algorithm. Furthermore, the technique could effectively project a dim target while suppressing noise, which is beneficial to image display and target detection. PMID:25321683

Sun, Gang; Liu, Songlin; Wang, Weihua; Chen, Zengping

2014-09-10

10

Detail enhancement for high-dynamic-range infrared images based on guided image filter  

NASA Astrophysics Data System (ADS)

Detail enhancement and noise reduction play crucial roles in high dynamic range infrared image processing. The main focuses are to compress the high dynamic range images with an effective way to display on lower dynamic range monitors, enhance the perceptibility of small details, and reduce the noises without causing artifacts. In this paper, we propose a new method for detail enhancement and noise reduction of high dynamic range infrared images. We first apply a guided image filter to smooth the input image and separate the image into the base component and the detail component. This process also gives us an adaptive weighting coefficient associated with the details generated by the filter kernel. After the filtering process, we compress the base component into the display range by our modified histogram projection and enhance the detail component using the gain mask of the filter weighting coefficient. At last, we recombine the two parts and quantize the result to 8-bit domain. Our method is significantly better than those based on histogram equalization (HE), and it also has better visual effect than bilateral filter-based methods. Furthermore, our proposed method is much faster, non-approximate and suffers much less gradient flipping artifacts compared to the bilateral filter-based methods because the guided image filter uses the local linear model. We demonstrate that our method is both effective and efficient in a great variety of applications. Experimental verification and detailed analysis are shown in this paper.

Liu, Ning; Zhao, Dongxue

2014-11-01

11

Maia X-ray fluorescence imaging: Capturing detail in complex natural samples  

NASA Astrophysics Data System (ADS)

Motivated by the challenge of capturing complex hierarchical chemical detail in natural material from a wide range of applications, the Maia detector array and integrated realtime processor have been developed to acquire X-ray fluorescence images using X-ray Fluorescence Microscopy (XFM). Maia has been deployed initially at the XFM beamline at the Australian Synchrotron and more recently, demonstrating improvements in energy resolution, at the P06 beamline at Petra III in Germany. Maia captures fine detail in element images beyond 100 M pixels. It combines a large solid-angle annular energy-dispersive 384 detector array, stage encoder and flux counter inputs and dedicated FPGA-based real-time event processor with embedded spectral deconvolution. This enables high definition imaging and enhanced trace element sensitivity to capture complex trace element textures and place them in a detailed spatial context. Maia hardware and software methods provide per pixel correction for dwell, beam flux variation, dead-time and pileup, as well as off-line parallel processing for enhanced throughput. Methods have been developed for real-time display of deconvoluted SXRF element images, depth mapping of rare particles and the acquisition of 3D datasets for fluorescence tomography and XANES imaging using a spectral deconvolution method that tracks beam energy variation.

Ryan, C. G.; Siddons, D. P.; Kirkham, R.; Li, Z. Y.; de Jonge, M. D.; Paterson, D. J.; Kuczewski, A.; Howard, D. L.; Dunn, P. A.; Falkenberg, G.; Boesenberg, U.; De Geronimo, G.; Fisher, L. A.; Halfpenny, A.; Lintern, M. J.; Lombi, E.; Dyl, K. A.; Jensen, M.; Moorhead, G. F.; Cleverley, J. S.; Hough, R. M.; Godel, B.; Barnes, S. J.; James, S. A.; Spiers, K. M.; Alfeld, M.; Wellenreuther, G.; Vukmanovic, Z.; Borg, S.

2014-04-01

12

Cloud Imagers Offer New Details on Earth's Health  

NASA Technical Reports Server (NTRS)

A stunning red sunset or purple sunrise is an aesthetic treat with a scientific explanation: The colors are a direct result of the absorption or reflectance of solar radiation by atmospheric aerosols, minute particles (either solid or liquid) in the Earth s atmosphere that occur both naturally and because of human activity. At the beginning or end of the day, the Sun s rays travel farther through the atmosphere to reach an observer s eyes and more green and yellow light is scattered, making the Sun appear red. Sunset and sunrise are especially colorful when the concentration of atmospheric particles is high. This ability of aerosols to absorb and reflect sunlight is not just pretty; it also determines the amount of radiation and heat that reaches the Earth s surface, and can profoundly affect climate. In the atmosphere, aerosols are also important as nuclei for the condensation of water droplets and ice crystals. Clouds with fewer aerosols cannot form as many water droplets (called cloud particles), and consequently, do not scatter light well. In this case, more sunlight reaches the Earth s surface. When aerosol levels in clouds are high, however, more nucleation points can form small liquid water droplets. These smaller cloud particles can reflect up to 90 percent of visible radiation to space, keeping the heat from ever reaching Earth s surface. The tendency for these particles to absorb or reflect the Sun s energy - called extinction by astronomers - depends on a number of factors, including chemical composition and the humidity and temperature in the surrounding air; because cloud particles are so small, they are affected quickly by minute changes in the atmosphere. Because of this sensitivity, atmospheric scientists study cloud particles to anticipate patterns and shifts in climate. Until recently, NASA s study of atmospheric aerosols and cloud particles has been focused primarily on satellite images, which, while granting large-scale atmospheric analysis, limited scientists ability to acquire detailed information about individual particles. Now, experiments with specialized equipment can be flown on standard jets, making it possible for researchers to monitor and more accurately anticipate changes in Earth s atmosphere and weather patterns.

2009-01-01

13

Detailed Images from Europa Point to Slush Below Surface  

NSDL National Science Digital Library

Nine Galileo images of the Jovian moon Europa taken in December of 1997 have recently been released by the National Aeronautics and Space Administration's Jet Propulsion Laboroatory. The images support the theory that slush or liquid water exists below the surface of the satellite. The site contains links to the images (available in several resolutions and formats) and descriptive captions, along with further discussion of the slush/liquid water theory.

1998-01-01

14

Place Pulse : measuring the collaborative image of the city  

E-print Network

This thesis presents Place Pulse, a tool capable of conducting large crowdsourced visual preference surveys. The data collected with Place Pulse was used to create quantitative measures of the perceptions people hold of ...

Salesses, Mark Philip

2012-01-01

15

A novel spatial domain details enhancement and compression algorithm for high dynamic range infrared image  

NASA Astrophysics Data System (ADS)

With constraints to the performance of the IR detector, IR image usually has lower visual effect with low contrast and less detailed information. In this paper, a new dynamic range infrared image details enhancement algorithm is studied, using a bilateral filter to extract a base component and a detail component. Then these two components are compressed to fit the display dynamic range and then recombined to obtain the output-enhancement image. This algorithm has solved the problem of ripple phenomenon which exists in the traditional infrared image digital detail enhancement. Finally, the algorithm described in this paper is proved experimentally that can provide better DDE effect.

Zhang, Jufeng; Zhang, Zhijie; Bo, Lei

2013-07-01

16

The image of place in American popular music, 1970-1990  

E-print Network

Popular music is examined from two geographical perspectives, the image of place as represented in the titles of popular songs and the changing geography of the popular music industry. Examining the trend in place reference in popular song titles...

Seiler, Leslie Carl

1997-01-01

17

Hundred metre virtual telescope captures unique detailed colour image  

NASA Astrophysics Data System (ADS)

A team of French astronomers has captured one of the sharpest colour images ever made. They observed the star T Leporis, which appears, on the sky, as small as a two-storey house on the Moon [1]. The image was taken with ESO's Very Large Telescope Interferometer (VLTI), emulating a virtual telescope about 100 metres across and reveals a spherical molecular shell around an aged star. ESO PR Photo 06a/09 The star T Leporis as seen with VLTI ESO PR Photo 06b/09 The star T Leporis to scale ESO PR Photo 06c/09 A virtual 100-metre telescope ESO PR Photo 06d/09 The orbit of Theta1 Orionis C ESO PR Video 06a/09 Zoom-in onto T Leporis "This is one of the first images made using near-infrared interferometry," says lead author Jean-Baptiste Le Bouquin. Interferometry is a technique that combines the light from several telescopes, resulting in a vision as sharp as that of a giant telescope with a diameter equal to the largest separation between the telescopes used. Achieving this requires the VLTI system components to be positioned to an accuracy of a fraction of a micrometre over about 100 metres and maintained so throughout the observations -- a formidable technical challenge. When doing interferometry, astronomers must often content themselves with fringes, the characteristic pattern of dark and bright lines produced when two beams of light combine, from which they can model the physical properties of the object studied. But, if an object is observed on several runs with different combinations and configurations of telescopes, it is possible to put these results together to reconstruct an image of the object. This is what has now been done with ESO's VLTI, using the 1.8-metre Auxiliary Telescopes. "We were able to construct an amazing image, and reveal the onion-like structure of the atmosphere of a giant star at a late stage of its life for the first time," says Antoine Mérand, member of the team. "Numerical models and indirect data have allowed us to imagine the appearance of the star before, but it is quite astounding that we can now see it, and in colour." Although it is only 15 by 15 pixel across, the reconstructed image shows an extreme close-up of a star 100 times larger than the Sun, a diameter corresponding roughly to the distance between the Earth and the Sun. This star is, in turn, surrounded by a sphere of molecular gas, which is about three times as large again. T Leporis, in the constellation of Lepus (the Hare), is located 500 light-years away. It belongs to the family of Mira stars, well known to amateur astronomers. These are giant variable stars that have almost extinguished their nuclear fuel and are losing mass. They are nearing the end of their lives as stars, and will soon die, becoming white dwarfs. The Sun will become a Mira star in a few billion years, engulfing the Earth in the dust and gas expelled in its final throes. Mira stars are among the biggest factories of molecules and dust in the Universe, and T Leporis is no exception. It pulsates with a period of 380 days and loses the equivalent of the Earth's mass every year. Since the molecules and dust are formed in the layers of atmosphere surrounding the central star, astronomers would like to be able to see these layers. But this is no easy task, given that the stars themselves are so far away -- despite their huge intrinsic size, their apparent radius on the sky can be just half a millionth that of the Sun. "T Leporis looks so small from the Earth that only an interferometric facility, such as the VLTI at Paranal, can take an image of it. VLTI can resolve stars 15 times smaller than those resolved by the Hubble Space Telescope," says Le Bouquin. To create this image with the VLTI astronomers had to observe the star for several consecutive nights, using all the four movable 1.8-metre VLT Auxiliary Telescopes (ATs). The ATs were combined in different groups of three, and were also moved to different positions, creating more new interferometric configurations, so that astronomers could emulate a virtual telescope

2009-02-01

18

A detail enhancement and dynamic range adjustment algorithm for high dynamic range images  

NASA Astrophysics Data System (ADS)

Although high dynamic range (HDR) images contain large amounts of information, they have weak texture and low contrast. What's more, these images are difficult to be reproduced on low dynamic range displaying mediums. If much more information is to be acquired when these images are displayed on PCs, some specific transforms, such as compressing the dynamic range, enhancing the portions of little difference in original contrast and highlighting the texture details on the premise of keeping the parts of large contrast, are needed. To this ends, a multi-scale guided filter enhancement algorithm which derives from the single-scale guided filter based on the analysis of non-physical model is proposed in this paper. Firstly, this algorithm decomposes the original HDR images into base image and detail images of different scales, and then it adaptively selects a transform function which acts on the enhanced detail images and original images. By comparing the treatment effects of HDR images and low dynamic range (LDR) images of different scene features, it proves that this algorithm, on the basis of maintaining the hierarchy and texture details of images, not only improves the contrast and enhances the details of images, but also adjusts the dynamic range well. Thus, it is much suitable for human observation or analytical processing of machines.

Xu, Bo; Wang, Huachuang; Liang, Mingtao; Yu, Cong; Hu, Jinlong; Cheng, Hua

2014-08-01

19

Novel image detail enhancement technology for high dynamic range infrared detector  

NASA Astrophysics Data System (ADS)

In this paper, we propose a novel image detail enhancement technology which is well solved the problem of how to suppress the noise and enhance the detail at the same time of the infrared image. This technology is based on the layer separation idea. In nowadays, this idea is studied by many researchers, and many detail enhancement algorithms have been come up through this idea such as the bilateral filter for detail enhancement. According to our research, these algorithms although have the advantages of enhancing the detail without enhancing the noise, they also have the disadvantages of massive calculation, low speed and the worst is the gradient flipping effect which cause the enhanced image distorted. Our solution is based on the Guided Image Filter (GIF) to deal the separated detail layer of an image. The gradient flipping effect will be greatly suppressed with the priority that the GIF is a linear filter. Which means that the processed image will become much closer to the original image. We determine an adaptive weighting coefficient as the filter kernel. After that, we compress the base component into the display range by our modified histogram projection and enhance the detail component using the gain mask of the filter weighting coefficient. At last, we recombine the two parts and quantize the result to 8-bit domain. Experimental verification and detailed realization have been provided in this paper. We also have done significant comparison between our method and the proposed algorithm to show the superiority of our algorithm.

Liu, Ning; Zhu, Caigao

2014-11-01

20

Detail preserved fusion of infrared and visual images by using opening and closing based toggle operator  

NASA Astrophysics Data System (ADS)

Image fusion is an effective way to combine the useful information in infrared and visual images. One crucial part of infrared and visual image fusion is extracting the useful image features of the original images, and thus maintaining the image details in the final fusion image well. In this paper, a detail preserving algorithm for infrared and visual image fusion based on the multi-scale toggle operator which uses morphological opening and closing operators as primitives is proposed. The toggle operator using opening and closing as primitives is discussed. Also, extracting image regions using the constructed toggle operator is demonstrated. Then, based on the multi-scale theory, extraction of multi-scale image regions using the constructed toggle operator is demonstrated. After appropriately utilizing the extracted multi-scale image features, the effective fusion result is obtained through the strategy of contrast enlargement. Experimental results show that, because the toggle operator using opening and closing as primitives could extract image features well in the original infrared and visual images, the proposed algorithm performs well for detail preserved fusion of infrared and visual images.

Bai, Xiangzhi; Zhang, Yu

2014-11-01

21

Multi scale detail-preserving denoising method of infrared image via relative total variation  

NASA Astrophysics Data System (ADS)

How to remove the noise in infrared image effectively with detail preserving is a significant but difficult problem in infrared image processing. Various methods have been proposed to obtain good results. However, these algorithms usually cannot distinguish noise and detail efficiently, which leads to smoothing some details in infrared images. Recently a novel local measure called relative total variation (RTV) is proposed to accomplish effective texture removal. RTV measure is combined with a general windowed total variation measure and a novel inherent variation measure to smooth the image texture effectively while preserving the main structure. In this paper, using detail preserving smoothing method via RTV, a multi scale denoising algorithm for infrared image is proposed. Firstly, the infrared image is decomposed into several scales by non-subsampled Contourlet transform (NSCT). NSCT decomposition does not do any down sampling or up sampling, thus the results are not band limited. Secondly?the algorithm applies RTV based detail preserving denoising method for each decomposed layers. Different smoothing parameters are respectively used to adjust the denoising levels in different scales. Finally, various synthetic weights are utilized to different layers to reconstruct the final infrared denosing results. Compared with other infrared denoising approaches, the quantitative comparisons demonstrate that the proposed method could well suppress the noise of infrared image while preserving the edge details effectively. Both visual quality and objective measure results show that this method is efficient and has a good application in infrared image denoising.

Cui, Guang-mang; Feng, Hua-jun; Xu, Zhi-hai; Li, Qi; Chen, Yue-ting

2013-09-01

22

Study on infrared image detail enhancement algorithm based on adaptive lateral inhibition network  

NASA Astrophysics Data System (ADS)

Aiming at traditional lateral inhibition network enhancement algorithm's disadvantages such as poor anti-noise performance and complicated calculation, this paper proposed a novel infrared image detail enhancement algorithm based on adaptive lateral inhibition network. The algorithm can not only reduce noise by adaptively changing lateral inhibition coefficients adaptively according to image scene, but also produce strong contrast between sharp edge and even part. Compared with traditional lateral inhibition network algorithm, the experimental results show that the image details are obviously highlighted, and the image's contrast increases by 1.25 times and the information entropy increases by 1.15 times.

Dai, Shaosheng; Liu, Qin; Li, Pengfei; Liu, Jinsong; Xiang, Haiyan

2015-01-01

23

Display and detail enhancement for high-dynamic-range infrared images  

NASA Astrophysics Data System (ADS)

Dynamic range reduction and detail enhancement are two important issues for effectively displaying high-dynamic-range images acquired by thermal camera systems. They must be performed in such a way that the high dynamic range image signal output from sensors is compressed in a pleasing manner for display on lower dynamic range monitors without reducing the perceptibility of small details. In this paper, a new method of display and detail enhancement for high dynamic range infrared images is presented. This method effectively maps the raw acquired infrared image to 8-bit domain based on the same architecture of bilateral filter and dynamic range partitioning approach. It includes three main steps: First, a bilateral filter is applied to separate the input image into the base component and detail component. Second, refine the base and detail layer using an adaptive Gaussian filter to avoid unwanted artifacts. Then the base layer is projected to the display range and the detail layer is enhanced using an adaptive gain control approach. Finally, the two parts are recombined and quantized to 8-bit domain. The strength of the proposed method lies in its ability to avoid unwanted artifacts and adaptability in different scenarios. Its great performance is validated by the experimental results tested with two real infrared imagers.

Zuo, Chao; Chen, Qian; Liu, Ning; Ren, Jianle; Sui, Xiubao

2011-12-01

24

Research of detecting details and features of infrared polarization imaging experiment  

NASA Astrophysics Data System (ADS)

Along with modern infrared camouflage technique developed, it is hard to distinguish target and background by using traditional infrared intensity imaging in general because infrared feature of target and background are tending to consistent. To address this issue, a thought that utilizes infrared polarization imaging technique to detect target is proposed in this paper based on analyzing of the principle of infrared polarization imaging. The experiments are carried out for detecting of infrared low-contrast target imaging. Comparing with the infrared intensity images, the average gradient of the infrared polarization image has been improved 155% and the contrast of target and background has been improved 120% in infrared polarization images. The effective experimental data and imaging law between infrared polarization images and infrared intensity images are obtained that, the technology of infrared polarization imaging can detect details of infrared target more clearly than the infrared intensity imaging, and it can obviously increase the contrast between target and background. Therefore, it is more helpful to detecting details and features of target.

Yang, Fan; Liu, Xiao-cheng; Wang, Ji-zhong

2013-09-01

25

Selectively detail-enhanced fusion of differently exposed images with moving objects.  

PubMed

In this paper, we introduce an exposure fusion scheme for differently exposed images with moving objects. The proposed scheme comprises a ghost removal algorithm in a low dynamic range domain and a selectively detail-enhanced exposure fusion algorithm. The proposed ghost removal algorithm includes a bidirectional normalization-based method for the detection of nonconsistent pixels and a two-round hybrid method for the correction of nonconsistent pixels. Our detail-enhanced exposure fusion algorithm includes a content adaptive bilateral filter, which extracts fine details from all the corrected images simultaneously in gradient domain. The final image is synthesized by selectively adding the extracted fine details to an intermediate image that is generated by fusing all the corrected images via an existing multiscale algorithm. The proposed exposure fusion algorithm allows fine details to be exaggerated while existing exposure fusion algorithms do not provide such an option. The proposed scheme usually outperforms existing exposure fusion schemes when there are moving objects in real scenes. In addition, the proposed ghost removal algorithm is simpler than existing ghost removal algorithms and is suitable for mobile devices with limited computational resource. PMID:25148667

Li, Zhengguo; Zheng, Jinghong; Zhu, Zijian; Wu, Shiqian

2014-10-01

26

Mass General develops a pill-sized device that provides rapid, detailed imaging of esophageal lining  

Cancer.gov

Physicians may soon have a new way to screen patients for Barrett's esophagus, a precancerous condition usually caused by chronic exposure to stomach acid. Researchers at the Wellman Center for Photomedicine at Massachusetts General Hospital (a component of the Dana-Farber Cancer Institute) have developed an imaging system enclosed in a capsule about the size of a multivitamin pill that creates detailed, microscopic images of the esophageal wall. The system has several advantages over traditional endoscopy.

27

Novel response function resolves by image deconvolution more details of surface nanomorphology  

NASA Astrophysics Data System (ADS)

A novel method of image processing is presented which relies on deconvolution of data using the response function of the apparatus. It is revealed that all the surface structures observed by digital imaging are generated by a convolution of the response function of the apparatus with the surfaces' nanomorphology, which provided images of convoluted physical structures rather than images of real physical structures. In order to restore the genuine physical information on surface structures, a deconvolution using a novel response function of the feedback circuitry is required. At the highest resolution, that is, atomic resolution, the effect of deconvolution is at its maximum, whereas images at lower resolution are sharpened by eliminating smoothing effects and shadow effects. The method is applied to measurements of imaging by in situ scanning tunnelling microscopy (in situ STM) at atomic resolution and to imaging by in situ STM of electrocrystallization of copper on gold in electrolytes containing copper sulfate and sulfuric acid. It is suggested that the observed peaks of the recorded image do not represent atoms, but the atomic structure may be recovered by image deconvolution followed by calibration of distances, correction for drift phenomena and rotation in the plane of the surface. The technology may subsequently reveal more details of molecular adsorbents. The impact of in situ STM at atomic and lower resolution on imaging is discussed in the paper.

Andersen, Jens E. T.

2010-11-01

28

High dynamic range compression and detail enhancement of infrared images in the gradient domain  

NASA Astrophysics Data System (ADS)

To find the trade-off between providing an accurate perception of the global scene and improving the visibility of details without excessively distorting radiometric infrared information, a novel gradient-domain-based visualization method for high dynamic range infrared images is proposed in this study. The proposed method adopts an energy function which includes a data constraint term and a gradient constraint term. In the data constraint term, the classical histogram projection method is used to perform the initial dynamic range compression to obtain the desired pixel values and preserve the global contrast. In the gradient constraint term, the moment matching method is adopted to obtain the normalized image; then a gradient gain factor function is designed to adjust the magnitudes of the normalized image gradients and obtain the desired gradient field. Lastly, the low dynamic range image is solved from the proposed energy function. The final image is obtained by linearly mapping the low dynamic range image to the 8-bit display range. The effectiveness and robustness of the proposed method are analyzed using the infrared images obtained from different operating conditions. Compared with other well-established methods, our method shows a significant performance in terms of dynamic range compression, while enhancing the details and avoiding the common artifacts, such as halo, gradient reversal, hazy or saturation.

Zhang, Feifei; Xie, Wei; Ma, Guorui; Qin, Qianqing

2014-11-01

29

Detailed analysis of latencies in image-based dynamic MLC tracking  

SciTech Connect

Purpose: Previous measurements of the accuracy of image-based real-time dynamic multileaf collimator (DMLC) tracking show that the major contributor to errors is latency, i.e., the delay between target motion and MLC response. Therefore the purpose of this work was to develop a method for detailed analysis of latency contributions during image-based DMLC tracking. Methods: A prototype DMLC tracking system integrated with a linear accelerator was used for tracking a phantom with an embedded fiducial marker during treatment delivery. The phantom performed a sinusoidal motion. Real-time target localization was based on x-ray images acquired either with a portal imager or a kV imager mounted orthogonal to the treatment beam. Each image was stored in a file on the imaging workstation. A marker segmentation program opened the image file, determined the marker position in the image, and transferred it to the DMLC tracking program. This program estimated the three-dimensional target position by a single-imager method and adjusted the MLC aperture to the target position. Imaging intervals {Delta}T{sub image} from 150 to 1000 ms were investigated for both kV and MV imaging. After the experiments, the recorded images were synchronized with MLC log files generated by the MLC controller and tracking log files generated by the tracking program. This synchronization allowed temporal analysis of the information flow for each individual image from acquisition to completed MLC adjustment. The synchronization also allowed investigation of the MLC adjustment dynamics on a considerably finer time scale than the 50 ms time resolution of the MLC log files. Results: For {Delta}T{sub image}=150 ms, the total time from image acquisition to completed MLC adjustment was 380{+-}9 ms for MV and 420{+-}12 ms for kV images. The main part of this time was from image acquisition to completed image file writing (272 ms for MV and 309 ms for kV). Image file opening (38 ms), marker segmentation (4 ms), MLC position calculation (16 ms), and MLC adjustment (52 ms) were considerably faster. For {Delta}T{sub image}=1000 ms, the total time from image acquisition to completed MLC adjustment increased to 1030{+-}62 ms (MV) and 1330{+-}52 ms (kV) mainly because of delayed image file writing. The MLC adjustment duration was constant 52 ms ({+-}3 ms) for MLC adjustments below 1.1 mm and increased linearly for larger MLC adjustments. Conclusions: A method for detailed time analysis of each individual real-time position signal for DMLC tracking has been developed and applied to image-based tracking. The method allows identification of the major contributors to latency and therefore a focus for reducing this latency. The method could be an important tool for the reconstruction of the delivered target dose during DMLC tracking as it provides synchronization between target motion and MLC motion.

Poulsen, Per Rugaard; Cho, Byungchul; Sawant, Amit; Ruan, Dan; Keall, Paul J. [Department of Radiation Oncology, Stanford University, Stanford, California 94305 and Department of Oncology and Department of Medical Physics, Aarhus University Hospital, 8000 Aarhus (Denmark); Department of Radiation Oncology, Stanford University, Stanford, California 94305 and Department of Radiation Oncology, Asan Medical Center, Seoul 138-736 (Korea, Republic of); Department of Radiation Oncology, Stanford University, Stanford, California 94305 (United States)

2010-09-15

30

Automated analysis and detailed quantification of biomedical images using Definiens Cognition Network Technology.  

PubMed

Biomedicine has seen tremendous advances in the field of image acquisition. The generation of digital images of high information content has become so straightforward and efficient that the volume of images accumulating in biomedical disciplines is posing significant challenges. Until now, conventional image analysis solutions are generally pixel-based and limited in the amount of information that they extract. However, a software system enabling the complex analysis of biomedical images should not impose restrictions on detection, classification and quantification of structures, but rather allow unlimited freedom to answer exhaustively all conceivable questions about the interactions and relationships between structures. Crucial to this is the precise and robust segmentation of relevant structures in digital micrographs. This challenge involves bringing structure, morphology and context into play. Based on the Definiens Cognition Network Technology, solutions have been deployed for use in biomedicine. The technology is object-oriented, multi-scale, context-driven and knowledge-based. Images are interpreted on the properties of networked image objects, which results in numerous advantages. This approach enables users to bring in detailed expert knowledge and enables complex analyses to be performed with unprecedented accuracy, even on poor quality data or for structures exhibiting heterogeneous properties or variable phenotypes. Extracted structures are the basis for detailed morphometric, structural and relational measurements which can be exported for each individual structure. These data can be used for decision support or correlated against experimental or molecular data, thus bridging classical biomedicine with molecular biology. An overview of the technology is provided with examples from different biomedical applications. PMID:19531006

Baatz, Martin; Zimmermann, Johannes; Blackmore, Colin G

2009-11-01

31

Simultaneous cellular-resolution optical perturbation and imaging of place cell firing fields.  

PubMed

Linking neural microcircuit function to emergent properties of the mammalian brain requires fine-scale manipulation and measurement of neural activity during behavior, where each neuron's coding and dynamics can be characterized. We developed an optical method for simultaneous cellular-resolution stimulation and large-scale recording of neuronal activity in behaving mice. Dual-wavelength two-photon excitation allowed largely independent functional imaging with a green fluorescent calcium sensor (GCaMP3, ? = 920 ± 6 nm) and single-neuron photostimulation with a red-shifted optogenetic probe (C1V1, ? = 1,064 ± 6 nm) in neurons coexpressing the two proteins. We manipulated task-modulated activity in individual hippocampal CA1 place cells during spatial navigation in a virtual reality environment, mimicking natural place-field activity, or 'biasing', to reveal subthreshold dynamics. Notably, manipulating single place-cell activity also affected activity in small groups of other place cells that were active around the same time in the task, suggesting a functional role for local place cell interactions in shaping firing fields. PMID:25402854

Rickgauer, John Peter; Deisseroth, Karl; Tank, David W

2014-12-01

32

Functional imaging of hippocampal place cells at cellular resolution during virtual navigation  

PubMed Central

Spatial navigation is a widely employed behavior in rodent studies of neuronal circuits underlying cognition, learning and memory. In vivo microscopy combined with genetically-encoded indicators provides important new tools to study neuronal circuits, but has been technically difficult to apply during navigation. We describe methods to image the activity of hippocampal CA1 neurons with sub-cellular resolution in behaving mice. Neurons expressing the genetically encoded calcium indicator GCaMP3 were imaged through a chronic hippocampal window. Head-fixed mice performed spatial behaviors within a setup combining a virtual reality system and a custom built two-photon microscope. Populations of place cells were optically identified, and the correlation between the location of their place fields in the virtual environment and their anatomical location in the local circuit was measured. The combination of virtual reality and high-resolution functional imaging should allow for a new generation of studies to probe neuronal circuit dynamics during behavior. PMID:20890294

Dombeck, Daniel A.; Harvey, Christopher D.; Tian, Lin; Looger, Loren L.; Tank, David W.

2010-01-01

33

Confocal imaging reveals structural detail of the cell nucleus and ascospore formation in lichenized fungi.  

PubMed

A method for visualization of fungal nuclear structures using the DNA specific fluorochrome SYTOX Green and confocal laser scanning microscopy is presented. The staining procedure detects nuclei in different cell types with high contrast. Furthermore, the method permits generation of high-resolution confocal image stacks using optimised scanning conditions. This approach significantly improved visualization of stained fungal nuclear structures. The technique was applied to some lichenized fungi, but can also be used to study similar detail in non-lichenized fungi. In certain cases, incompletely separated chromosome-like structures, heterochromatic material as well as weakly stained nucleolar regions can be seen. In Xanthoria parietina, variation in the nuclear division was observed in developing ascospores. Delayed division after the formation of endospore thickening resulted in the exchange of nuclear material through a narrow isthmus. PMID:14531621

Wolinski, Heimo

2003-08-01

34

Detailed analysis of substorm observations using SuperDARN, UVI, ground-based magnetometers, and all-sky imagers  

E-print Network

Detailed analysis of substorm observations using SuperDARN, UVI, ground-based magnetometers Imager (UVI), CANOPUS magnetometers, the Alaska chain magnetometers, the Poker Flat meridian plasma flows, auroral luminosity, and magnetometer perturbations are investigated. It is found

Lummerzheim, Dirk

35

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

and evaluate innovative image processing algorithms to solve complex technical issues. Requirements: · MS and implementing test scenarios to evaluate the performance of imaging algorithms. · Background in image processing more details on the external postings listed here. Senior Image Processing Engineer / Senior Imaging

Zanibbi, Richard

36

Enceladus Close Up: New Details Recovered from Cassini ISS Boresight-Drag Images  

NASA Astrophysics Data System (ADS)

Among the many Cassini ISS (Imaging Science Subsystem) images of Enceladus are a few severely-underexposed, motion-blurred images that were acquired on “boresight-drag” events on the closest flybys. During boresight-drags, ISS is statically aimed at a point that intercepts the predicted path of Enceladus’ across the sky. The ISS Narrow angle (NAC) and Wide Angle (WAC) cameras are repeatedly triggered together in hope of serendipitously capturing a close-up “BOTSIM” image-pair of the body as it passes. Because the events are so fast, the surface footprints and lighting geometry cannot be predicted in advance - a cascade of images are just quickly shuttered at the minimum 5 msec exposure. On each of four boresight-drags, surface images were captured. However, the two most recent (image-pair W/N1669812043 in November 2010 and W/N1713106405 in April 2012, respectively) were poorly illuminated -- three of four images only in Saturnshine. Despite their poor signal quality, they are rare images of Enceladus’ surface obtained with spatial resolutions better than a few meters/pixel. Careful use of Fourier filtering and spatial reconstruction techniques was needed to eliminate image noise and residual electronic banding that was not removed during routine radiometric calibration of the images. Fourier motion debluring techniques were then applied to correct for significant motion smear. Images W/N1669812043 (55.1°N, 20.2°W) are in old cratered terrain, inside a prominent 23 km sized impact crater along the rise of its updomed floor. They show a system of parallel ~250m wide mesas trending around the dome’s circumference. Smooth detritus inundates mesas and valleys near the dome summit and the mesa surfaces are otherwise mantled with regolith that is finely cratered down to the ~2 m/pixel NAC resolution limit. W/N1713106405 (66.9°S, 29.5°W) show the chaotically fractured margin of the active South Polar Terrain - an area divided by parallel ridges and troughs with relatively smooth flanks and valley floors. Quasi-linear arrangements of ice-blocks, each block tens of meters or smaller, are found mostly near ridge-tops.

Helfenstein, Paul; Thomas, P. C.; Veverka, J.

2013-10-01

37

Final Results from Mexnext-I: Analysis of detailed aerodynamic measurements on a 4.5 m diameter rotor placed in the large German Dutch Wind Tunnel DNW  

NASA Astrophysics Data System (ADS)

The paper presents the final results from the first phase of IEA Task 29 'Mexnext'. Mexnext was a joint project in which 20 parties from 11 different countries cooperated. The main aim of Mexnext was to analyse the wind tunnel measurements which have been taken in the EU project 'MEXICO'. In the MEXICO project 10 institutes from 6 countries cooperated in doing experiments on an instrumented, 3 bladed wind turbine of 4.5 m diameter placed in the 9.5 by 9.5 m2 open section of the Large Low-speed Facility (LLF) of DNW in the Netherlands. Pressure distributions on the blades were obtained from 148 Kulite pressure sensors, distributed over 5 sections at 25, 35, 60, 82 and 92 % radial position respectively. Blade loads were monitored through two strain-gauge bridges at each blade root. Most interesting however are the extensive PIV flow field measurements, which have been taken simultaneously with the pressure and load measurements. As a result of the international collaboration within this task a very thorough analysis of the data could be carried out and a large number of codes were validated not only in terms of loads but also in terms of underlying flow field. The paper will present several results from Mexnext-I, i.e. validation results and conclusion on modelling deficiencies and directions for model improvement. The future plans of the Mexnext consortium are also briefly discussed. Amongst these are Mexnext-II, a project in which also aerodynamic measurements other than MEXICO are included, and 'New MEXICO' in which additional measurement on the MEXICO model are performed.

Schepers, J. G.; Boorsma, K.; Munduate, X.

2014-12-01

38

Detailed Image of the Subducting Plate and Upper mantle Seismic Discontinuities in the Mariana Subduction Zone  

NASA Astrophysics Data System (ADS)

We use P-to-S converted teleseismic phases recorded at island and ocean bottom stations in Mariana to image the subducting plate and the upper mantle seismic discontinuities in the Mariana subduction zone. The land and seafloor stations which operated from June 2003 to May 2004, were deployed within the framework of the MARGINS Subduction Factory experiment of the Mariana system. The crust in the sudducting plate is observed at about 80--90 km depth beneath the islands of Saipan, Tinian and Rota. For most of the island stations, a low velocity layer is imaged in the forearc at depth between about 20 and 60 km, with decreasing depths toward the arc. The nature of this feature is not yet clear. We found evidence for double seismic discontinuities at the base of the transition zone near the Mariana slab. A shallower discontinuity is imaged at depths of ~650--715 km, and a deeper interface lies at ~740-- 770 km depth. The amplitudes of the seismic signals suggest that the shear velocity contrasts across the two features are comparable. These characteristics support the interpretation that the discontinuities are the results of the phase transformations in olivine (ringwoodite to post-spinel) and garnet (ilminite to perovskite), respectively, for the pyrolite model of mantle composition.

Tibi, R.; Wiens, D. A.; Shiobara, H.; Sugioka, H.; Yuan, X.

2006-12-01

39

Buck family pedigree (detail), still imageSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

DNAi location: Chronicle>Trial of Carrie Buck>trialDetail of Harry Laughlin's pedigree of the Buck famiiy. Although it was a bona fide medical diagnosis in its day, "feeblemindedness" had virtually no clinical meaning and is no longer used in medical terminology. Many people who were classified as feebleminded would now be called mildly retarded, learning disabled, or simply underachievers. Contrary to the evidence presented at her trial, Carrie appears to have had no serious mental problem, and she was not promiscuous. Vivian's conception was the result of Carrie's rape by Clarence Garland, the nephew of her foster parents. Carrie, like many unwed mothers of that time, was institutionalized to prevent shame to the family.

2008-10-06

40

Detailed interrogation of trypanosome cell biology via differential organelle staining and automated image analysis  

PubMed Central

Background Many trypanosomatid protozoa are important human or animal pathogens. The well defined morphology and precisely choreographed division of trypanosomatid cells makes morphological analysis a powerful tool for analyzing the effect of mutations, chemical insults and changes between lifecycle stages. High-throughput image analysis of micrographs has the potential to accelerate collection of quantitative morphological data. Trypanosomatid cells have two large DNA-containing organelles, the kinetoplast (mitochondrial DNA) and nucleus, which provide useful markers for morphometric analysis; however they need to be accurately identified and often lie in close proximity. This presents a technical challenge. Accurate identification and quantitation of the DNA content of these organelles is a central requirement of any automated analysis method. Results We have developed a technique based on double staining of the DNA with a minor groove binding (4'', 6-diamidino-2-phenylindole (DAPI)) and a base pair intercalating (propidium iodide (PI) or SYBR green) fluorescent stain and color deconvolution. This allows the identification of kinetoplast and nuclear DNA in the micrograph based on whether the organelle has DNA with a more A-T or G-C rich composition. Following unambiguous identification of the kinetoplasts and nuclei the resulting images are amenable to quantitative automated analysis of kinetoplast and nucleus number and DNA content. On this foundation we have developed a demonstrative analysis tool capable of measuring kinetoplast and nucleus DNA content, size and position and cell body shape, length and width automatically. Conclusions Our approach to DNA staining and automated quantitative analysis of trypanosomatid morphology accelerated analysis of trypanosomatid protozoa. We have validated this approach using Leishmania mexicana, Crithidia fasciculata and wild-type and mutant Trypanosoma brucei. Automated analysis of T. brucei morphology was of comparable quality to manual analysis while being faster and less susceptible to experimentalist bias. The complete data set from each cell and all analysis parameters used can be recorded ensuring repeatability and allowing complete data archiving and reanalysis. PMID:22214525

2012-01-01

41

Mystic Places  

NSDL National Science Digital Library

This Website from The Discovery Channel of Canada explores "some of the world's most enigmatic places." It features separate sections on three famous sites -- Easter Island, Nazca Lines, and Stonehenge -- discussing the construction, cultural significance, and physical history of the extraordinary structures erected at each. The site also offers a slideshow presenting dozens of dramatic photographs from the three places as well as links to pertinent news releases and features archived on the Discovery site. The discussions and images provided are extensive and can serve as a stand-alone source of information, suitable for individual or secondary education.

42

Fractal-feature distance analysis of contrast-detail phantom image and meaning of pseudo fractal dimension and complexity  

Microsoft Academic Search

The purposes of our studies are to examine whether or not fractal-feature distance deduced from virtual volume method can\\u000a simulate observer performance indices and to investigate the physical meaning of pseudo fractal dimension and complexity.\\u000a Contrast-detail (C-D) phantom radiographs were obtained at various mAs values (0.5-4.0 mAs) and 140 kVp with a computed radiography\\u000a system, and the reference image was

K. Imai; M. Ikeda; Y. Enchi; T. Niimi

2009-01-01

43

An Image-Based Model of the Whole Human Heart with Detailed Anatomical Structure and Fiber Orientation  

PubMed Central

Many heart anatomy models have been developed to study the electrophysiological properties of the human heart. However, none of them includes the geometry of the whole human heart. In this study, an anatomically detailed mathematical model of the human heart was firstly reconstructed from the computed tomography images. In the reconstructed model, the atria consisted of atrial muscles, sinoatrial node, crista terminalis, pectinate muscles, Bachmann's bundle, intercaval bundles, and limbus of the fossa ovalis. The atrioventricular junction included the atrioventricular node and atrioventricular ring, and the ventricles had ventricular muscles, His bundle, bundle branches, and Purkinje network. The epicardial and endocardial myofiber orientations of the ventricles and one layer of atrial myofiber orientation were then measured. They were calculated using linear interpolation technique and minimum distance algorithm, respectively. To the best of our knowledge, this is the first anatomically-detailed human heart model with corresponding experimentally measured fibers orientation. In addition, the whole heart excitation propagation was simulated using a monodomain model. The simulated normal activation sequence agreed well with the published experimental findings. PMID:22952559

Deng, Dongdong; Jiao, Peifeng; Ye, Xuesong; Xia, Ling

2012-01-01

44

Place Value  

NSDL National Science Digital Library

Practice place value! Fight the pirates in Pirates Place Value Uncover the hidden picture in Place value hidden picture Take the quiz at place value quiz Keep practicing with Place value to 1000 Stretch your brain with Place value to 100,000 ...

Peake, Mrs.

2011-08-18

45

Place Value  

NSDL National Science Digital Library

These activites cover place value of ones, tens, hundreds and thousands. Please complete the games in order. You must finish each game before going on to the next one. Game #1: Dinosaur Numbers (place value) Game #2: Shark Numbers (place value) Game #3: Place Value Golf (harder) ...

Christian, Mrs.

2007-03-21

46

Detailed effects of scattering and absorption by haze and aerosols in the atmosphere on the average point spread function of an imaging system.  

PubMed

The Earth's atmosphere has significant effects on the propagation of electromagnetic (EM) radiation and accordingly degrades the performance of electro-optical systems. These effects are attributed to atmospheric turbulence and to absorption and scattering of EM waves by atmospheric molecules and aerosols. In this paper we develop a detailed model of the effects of absorption and scattering on the optical radiation propagating from the object plane to an imaging system based on the classical theory of EM scattering. Scattering has the effect of de-correlating the light leaving the target from the unscattered light reaching the imaging system, and scattering has the effect of broadening the angle at which the scattered light arrives at the receiver compared to the unscattered light. Absorption has the effect of reducing the amount of power available for the image. Both of these effects depend upon the atmospheric species present, their EM properties, and wavelength. We use this detailed model to compute the average point spread function (PSF) of an imaging system that properly accounts for the effects of the diffraction and scattering, and the appropriate optical power level of both the unscattered and the scattered radiation arriving at the pupil of the imaging system. Since the scattered radiation is temporally and spatially de-correlated from the unscattered radiation, we model the effects of the unscattered radiation and the radiation scattered from the various species as additive in the image plane. The key result of this study is the significant effect of atmospheric scattering on the contrast and spatial resolution of images acquired by imaging systems, due to the increased level of the scattered radiation PSF and the reduced level of the direct radiation PSF, upon increasing the atmospheric optical depth. PMID:24977370

Hanafy, Mohamed E; Roggemann, Michael C; Guney, Durdu O

2014-06-01

47

High-resolution single-molecule recognition imaging of the molecular details of ricin-aptamer interaction  

Technology Transfer Automated Retrieval System (TEKTRAN)

The molecular details of DNA aptamer-ricin interactions were investigated. The toxic protein ricin molecules were immobilized on Au(111) surface using N-hydroxysuccinimide (NHS) ester to specifically react with lysine residues located on the ricin B chains. A single ricin molecule was visualized in ...

48

My Place  

NSDL National Science Digital Library

This resource re-explains the concepts behind place value of numbers up to 1,000. It guides you through the place of numbers and uses simple terms and comparisons to describe the placement of numbers to students. It could be set up for students on computers to go through, or project it for the class to follow along as you re-read about place value.

Beacon Learning Center

2011-10-05

49

Strain Details  

Cancer.gov

Newly Accepted Strain Details Strain Code: 01XBU  Common Strain Name: p16INKa4a L   Strain Nomenclature: B6.129(Cg)-Cdkn2atm2.1Nesh/Nci/Nci  Register Interest in this Strain Strain Description: Conditional knockout for p16INK4a gene when deleted somatically

50

Strain Details  

Cancer.gov

Newly Accepted Strain Details Strain Code: 01XJA  Common Strain Name: PML (conventional k/o) - C57BL/6  Strain Nomenclature: B6.129S7-Pmltm1Ppp>/Nci  Register Interest in this Strain Strain Description: The promyelocytic leukemia gene PML was originally

51

Computed tomography:the details.  

SciTech Connect

Computed Tomography (CT) is a well established technique, particularly in medical imaging, but also applied in Synthetic Aperture Radar (SAR) imaging. Basic CT imaging via back-projection is treated in many texts, but often with insufficient detail to appreciate subtleties such as the role of non-uniform sampling densities. Herein are given some details often neglected in many texts.

Doerry, Armin Walter

2007-07-01

52

Detailed morphological characterisation of Hendra virus infection of different cell types using super-resolution and conventional imaging.  

PubMed

BackgroundHendra virus (HeV) is a pleomorphic virus belonging to the Paramyxovirus family. Our long-term aim is to understand the process of assembly of HeV virions. As a first step, we sought to determine the most appropriate cell culture system with which to study this process, and then to use this model to define the morphology of the virus and identify the site of assembly by imaging key virus encoded proteins in infected cells.MethodsA range of primary cells and immortalised cell lines were infected with HeV, fixed at various time points post-infection, labelled for HeV proteins and imaged by confocal, super-resolution and transmission electron microscopy.ResultsSignificant differences were noted in viral protein distribution depending on the infected cell type. At 8 hpi HeV G protein was detected in the endoplasmic reticulum and M protein was seen predominantly in the nucleus in all cells tested. At 18 hpi, HeV-infected Vero cells showed M and G proteins throughout the cell and in transmission electron microscope (TEM) sections, in pleomorphic virus-like structures. In HeV infected MDBK, A549 and HeLa cells, HeV M protein was seen predominantly in the nucleus with G protein at the membrane. In HeV-infected primary bovine and porcine aortic endothelial cells and two bat-derived cell lines, HeV M protein was not seen at such high levels in the nucleus at any time point tested (8,12, 18, 24, 48 hpi) but was observed predominantly at the cell surface in a punctate pattern co-localised with G protein. These HeV M and G positive structures were confirmed as round HeV virions by TEM and super-resolution (SR) microscopy. SR imaging demonstrated for the first time sub-virion imaging of paramyxovirus proteins and the respective localisation of HeV G, M and N proteins within virions.ConclusionThese findings provide novel insights into the structure of HeV and show that for HeV imaging studies the choice of tissue culture cells may affect the experimental results. The results also indicate that HeV should be considered a predominantly round virus with a mean diameter of approximately 280 nm by TEM and 310 nm by SR imaging. PMID:25428656

Monaghan, Paul; Green, Diane; Pallister, Jackie; Klein, Reuben; White, John; Williams, Catherine; McMillan, Paul; Tilley, Leann; Lampe, Marko; Hawes, Pippa; Wang, Lin-Fa

2014-11-27

53

Flooded areas assessment by integrating hydraulic flood analysis to the detailed flood maps generated with a multi-temporal image segmentation approach using Cosmo-Skymed  

NASA Astrophysics Data System (ADS)

The support of Earth Observation Systems to flood monitoring and damage assessment has been evaluated by integrating skills and knowledge of hydrologists and experts on image processing. Detailed flood maps are generated from the analysis of images pairs acquired by Cosmo-Skymed on the same area at different times. The adopted methodology applies image pre-processing and segmentation techniques with a multi-temporal approach. After noise reduction by despeckling, the user manually localizes few water points in one image. From selected points, segmentation distinguishes the classes of flood, permanent-water and no-change areas. Then, an anisotropic scanning analyzes the images to define its content. The resulting connected regions are converted into vectors to be entered as constraint for a Physically based 2-D hydraulic flood model. The model recursively varies the unknown boundary conditions to match at best the areas extracted from Cosmo-Skymed. The product is a hydraulic consistent report of the flooded area including information on water depth and velocities. By combining these information with vulnerability maps, extracted from optical satellite images with a supervised approach, an estimation of the damage is provided. The reported results refer to the monitoring of the flood event occurred in the Scutari Lake area (Albania, January 2010).

Boni, G.; Angiati, E.; Candela, L.; Dellepiane, S.; Macchiavello, G.; Rudari, R.

2010-10-01

54

Evaluation of lunar rocks and soils for resource utilization: Detailed image analysis of raw materials and beneficiated products  

NASA Technical Reports Server (NTRS)

The rocks and soils of the Moon will be the raw materials for fuels and construction needs at a lunar base. This includes sources of materials for the generation of hydrogen, oxygen, metals, and other potential construction materials. For most of the bulk material needs, the regolith, and its less than 1 cm fraction, the soil, will suffice. But for specific mineral resources, it may be necessary to concentrate minerals from rocks or soils, and it is not always obvious which is the more appropriate feedstock. Besides an appreciation of site geology, the mineralogy and petrography of local rocks and soils is important for consideration of the resources which can provide feedstocks of ilmenite, glass, agglutinates, anorthite, etc. In such studies, it is very time-consuming and practically impossible to correlate particle counts (the traditional method of characterizing lunar soil petrography) with accurate modal analyses and with mineral associations in multi-mineralic grains. But x ray digital imaging, using x rays characteristic of each element, makes all this possible and much more (e.g., size and shape analysis). An application of beneficiation image analysis, in use in our lab (Oxford Instr. EDS and Cameca SX-50 EMP), was demonstrated to study mineral liberation from lunar rocks and soils. Results of x ray image analysis are presented.

Taylor, Lawrence A.; Chambers, John G.; Patchen, Allan; Jerde, Eric A.; Mckay, David S.; Graf, John; Oder, Robin R.

1993-01-01

55

Place Values  

NSDL National Science Digital Library

This site has explanatory lessons, interactive practice, and challenge games all dealing with place value. Includes information, practice, and games on place value of two, three, six and seven digit numbers and expandend notation for two, three, six, and seven digit numbers. Problems are randomly selected and students receive immediate feedback with the correct response. The bottom of each lesson page contains timed exercises.

AAA Math

2007-12-12

56

Detailed in situ laser calibration of the infrared imaging video bolometer for the JT-60U tokamak  

SciTech Connect

The infrared imaging video bolometer (IRVB) in JT-60U includes a single graphite-coated gold foil with an effective area of 9x7 cm{sup 2} and a thickness of 2.5 {mu}m. The thermal images of the foil resulting from the plasma radiation are provided by an IR camera. The calibration technique of the IRVB gives confidence in the absolute levels of the measured values of the plasma radiation. The in situ calibration is carried out in order to obtain local foil properties such as the thermal diffusivity {kappa} and the product of the thermal conductivity k and the thickness t{sub f} of the foil. These quantities are necessary for solving the two-dimensional heat diffusion equation of the foil which is used in the experiments. These parameters are determined by comparing the measured temperature profiles (for kt{sub f}) and their decays (for {kappa}) with the corresponding results of a finite element model using the measured HeNe laser power profile as a known radiation power source. The infrared camera (Indigo/Omega) is calibrated by fitting the temperature rise of a heated plate to the resulting camera data using the Stefan-Boltzmann law.

Parchamy, H.; Peterson, B. J.; Konoshima, S.; Hayashi, H.; Seo, D. C.; Ashikawa, N

2006-10-15

57

Upper Yosemite Falls Detail  

USGS Multimedia Gallery

In this image, a detailed view Upper Yosemite Falls may be seen from the Yosemite Falls Trail. Upper Yosemite Falls has a total plunge of 1,430 ft (440 m). Yosemite Falls is one of the most famous waterfalls within Yosemite National Park....

58

Detailed features of palisade vessels as a marker of the esophageal mucosa revealed by magnifying endoscopy with narrow band imaging.  

PubMed

The palisade vessels present at the distal end of the esophagus are considered to be a landmark of the esophagogastric junction and indispensable for diagnosis of columnar-lined esophagus on the basis of the Japanese criteria. Here we clarified the features of normal palisade vessels at the esophagogastric junction using magnifying endoscopy. We prospectively studied palisade vessels in 15 patients undergoing upper gastrointestinal endoscopy using a GIF-H260Z instrument (Olympus Medical Systems Co., Tokyo, Japan). All views of the palisade vessels were obtained at the maximum magnification power in the narrow band imaging mode. We divided the area in which palisade vessels were present into three sections: the area from the squamocolumnar junction (SCJ) to about 1 cm orad within the esophagus (Section 1); the area between sections 1 and 3 (Section 2); and the area from the upper limit of the palisade vessels to about 1 cm distal within the esophagus (Section 3). In each section, we analyzed the vessel density, caliber of the palisade vessels, and their branching pattern. The vessel density in Sections 1, 2, and 3 was 9.1 ± 2.1, 8.0 ± 2.6, and 3.3 ± 1.3 per high-power field (mean ± standard deviation [SD]), respectively, and the differences were significant between Sections 1 and 2 (P= 0.0086) and between Sections 2 and 3 (P < 0.0001). The palisade vessel caliber in Sections 1, 2, and 3 was 127.6 ± 52.4 µm, 149.6 ± 58.6 µm, and 199.5 ± 75.1 µm (mean ± SD), respectively, and the differences between Sections 1 and 2, and between Sections 2 and 3, were significant (P < 0.0001). With regard to branching form, the frequency of branching was highest in Section 1, and the 'normal Y' shape was observed more frequently than in Sections 2 and 3. Toward the oral side, the frequency of branching diminished, and the frequency of the 'upside down Y' shape increased. The differences in branching form were significant among the three sections (P < 0.0001). These results indicate that the density of palisade vessels is highest near the SCJ, and that towards their upper limit they gradually become more confluent and show an increase of thickness. Within a limited area near the SCJ, observations of branching form suggest that palisade vessels merge abruptly on the distal side. We have demonstrated that palisade vessels are a useful marker for endoscopic recognition of the lower esophagus. PMID:22098187

Kumagai, Y; Yagi, M; Aida, J; Ishida, H; Suzuki, S; Hashimoto, T; Amanuma, Y; Kusano, M; Mukai, S; Yamazaki, S; Iida, M; Ochiai, T; Matsuura, M; Iwakiri, K; Kawano, T; Hoshihara, Y; Takubo, K

2012-08-01

59

My Place in Space  

NSDL National Science Digital Library

This is a lesson about robotic exploration of the solar system. Learners will explore the difference between natural and artificial satellites and use images taken by robotic spacecraft and telescopes to gain an understanding of the Earth's place in space. Requires the books "Me on the Map" by Joan Sweeney and "My Place in Space" by Robin and Sally Hirst. This is lesson 1 of 16 in the MarsBots learning module.

60

The role of advanced imaging techniques in cystic fibrosis follow-up: is there a place for MRI?  

Microsoft Academic Search

Cystic fibrosis (CF) lung disease is caused by mutations in the CFTR-gene and remains one of the most frequent lethal inherited\\u000a diseases in the Caucasian population. Given the progress in CF therapy and the consecutive improvement in prognosis, monitoring\\u000a of disease progression and effectiveness of therapeutic interventions with repeated imaging of the CF lung plays an increasingly\\u000a important role. So

Michael Puderbach; Monika Eichinger

2010-01-01

61

Engaging Places  

NSDL National Science Digital Library

How does the built environment affect our daily lives? It's a valuable question, and one that is explored in-depth via the writings, photographs, lessons, and activities on the Engaging Places website. Based in Britain, the site includes the areas Teaching Resources, Network, and About Us. First-time visitors should browse around the In the Spotlight area first. Here they can learn about the accolades garnered by Engaging Places and the site's latest outreach efforts. The Browse by Topic area allows users to learn about the built environment via the topics Architecture in focus, School case studies, and Heritage. The Architecture in Focus area is brilliant, as it contains pieces on 10 Downing Street, Blenheim Palace, and the De La Warr Pavilion, a Modernist icon. Additionally, visitors can use the Recently Added area to look over new content or use the Google Maps interface to search for sites of note and related teaching materials.

2013-05-23

62

15. CYLINDER DETAILS; DETAILS OF STEEL FOR CYLINDERS NO. 50 ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

15. CYLINDER DETAILS; DETAILS OF STEEL FOR CYLINDERS NO. 50 (PIER 5) AND NO. 66 (PIER 6), DWG. 83, CH BY AF, ECL, APPROVED BY O.F. LACKEY, MAY 18, 1908 - Baltimore Inner Harbor, Pier 5, South of Pratt Street between Market Place & Concord Street, Baltimore, Independent City, MD

63

YMCA National Safe Place  

NSDL National Science Digital Library

In today's world where many social services for young people are being scaled back due to budgetary constraints, outreach programs such as Project Safe Place are important to know about. The program got its start in 1983 in Louisville, and since then has spread to many parts of the country. Essentially, the Safe Place program creates a network of locations (such as schools, fire stations, YMCAs, and libraries) where young people who may be distressed by difficult and threatening situations, such as domestic disputes or other such problems, can find help and support resources. On the site, visitors can learn in great detail about the program, find Safe Place locations around the country, and read about the organization's history and current leadership. One highlight to note on the site is the Teen Topics area, which has been designed specifically for teenagers as a place to read about topics they may have questions about, such as eating disorders, suicide, and teen crime.

64

The impact of cone beam CT imaging when placing dental implants in the anterior edentulous mandible: a before-after study.  

PubMed

Objectives: To evaluate the impact of CBCT imaging when placing dental implants in the anterior edentulous mandible, using a 'before-after' study design. Methods: Eight dental practitioners, who regularly place dental implants in independent dental practice in the North West of England, were presented with realistic simulations of four edentulous cases. The practitioners were asked to assess case difficulty, select implants and then drill osteotomies in preparation for dental implants in the lower canine regions to support a complete overdenture. In the 'before' part of the study, a panoramic and a transymphyseal view were available. In the 'after' part of the study a CBCT image was added. Perception of case difficulty, implant selection and the incidence of perforations, or 'near miss perforations', of the lingual cortical plate were recorded. Two cases were regarded as "regular" and two as "challenging". Results: In challenging cases, the availability of CBCT led practitioners to select narrower implants and to assess cases as more difficult. In the challenging cases only there were fewer perforations of the lingual cortical plate after the availability of CBCT but this difference was not statistically significant. There were no perforations in the regular cases either before or after the availability of CBCT. Conclusions: Perception of case difficulty and implant selection are of importance only if they change the outcome for the patient. This study provided weak evidence that CBCT is helpful in avoiding perforations in challenging cases. The availability of CBCT had no impact in the regular cases. PMID:25472617

Shelley, Andrew; Ferrero, Alessandro; Brunton, Paul; Goodwin, Michaela; Horner, Keith

2014-12-01

65

PhD Project Title: Feto-placental flow modelling from detailed vascular structural image analysis Project Supervisors: Dr E Johnstone, Dr P Brownbill (Institute of Human Development), Prof OE  

E-print Network

affect fetal growth and development. We have used microCT technology to provide a unique detailed the project in microCT image analysis techniques, placental vascular casting and perfusion experiments

Glendinning, Paul

66

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

. Contact info listed below. The Imaging Firmware and Research department is seeking a firmware engineer and embedded firmware affecting various aspects of image formatting, image quality and performance

Zanibbi, Richard

67

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

,Java,C,C++) · Background in image processing (e.g. jpegs, Photoshop, digital images) · Familiarity with medical imaging (e Medical Imaging (CAMI): Brigham & Women's Hospital, Boston, MA Project Key Idea: We are looking for people perform difficult perceptual tasks in order to interpret medical images, detect disease and render

Zanibbi, Richard

68

17. A closeup detail, looking east from the northeast corner ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. A close-up detail, looking east from the northeast corner of the roadbed. This image shows the concrete commemorative inscription which is let into the inside of the eastern balustrade at the north end of the bridge. The name of one of the county commissioners has been chiselled out of the inscription. The parting fault between the parapet and its coping is evident. - Vigo County Bridge No. 139, Spanning Sugar Creek at Seventy-fourth Place, Terre Haute, Vigo County, IN

69

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any The Imaging Asset Team researches, develops and tunes image processing algorithms for the digital send with mechanical, electrical, ASIC, firmware and software development teams. We are looking to hire a new imaging

Zanibbi, Richard

70

High Resolution Seismic Survey off the Pacific Shore of Costa Rica - Detailed Imaging of Deformational Patterns, Fluid Venting and Carbonate Mounds  

NASA Astrophysics Data System (ADS)

R/V METEOR Research Cruise M54/1 in summer 2002 from Balboa (Panama) to Caldera (Costa Rica) aimed at imaging the near sea floor sedimentary structures of both the continental and oceanic plates of the Costa Rican Subduction Zone with the high resolution seismic method. The cruise evolved from a cooperation of the Marine Seismics Group of the University of Bremen with the DFG funded Special Research Project 574 - Fluids and Volatiles in Subduction Zones - and is intended to supplement the marine geophysical, geological and geochemical as well as oceanographic data collected during R/V SONNE cruises in the area, as well as subsequent R/V METEOR cruises M54/2 and /3. The objectives of SFB 574 are the investigation of shallow and deep processes in subduction zones through near surface sampling of fluid vent sites and gas hydrate occurrences, as well as through detailed seismic and acoustic imaging of related structures. The main objectives of the cruise were to study 1) the volatile and material input into the sedimentary system on the oceanic plate, 2) the distribution of gas hydrates within the sediments, and 3) possible pathways and resulting structures of fluid/gas escape. Several working areas were selected, which had been identified as highly fractured sediment packages above subducting seamounts (Jaco Scar, Parrita Scar, Rio Bongo, Hongo area), areas of pronounced decollement reflection, major slump masses (Nicoya slide), regions of major fracturing of the oceanic crust, or carbonate mounds (Hongo area, Mound Culebra) during previous cruises. For calibration of seismic data, survey lines were also shot in the vicinity of ODP Leg 170 drill sites. Several seismic examples from various survey sites will be shown. Closely spaced profiles, allowing the acquisition of 3D and 2.5D seismic data in the Hongo area and near Mound Culebra, respectively, reveal the complex internal structure of fluid pathways, the distribution of gas hydrates, and the tectonic framework of small scale faulting and slumping. Multichannel seismic and digital sediment echosounder data were complemented by recordings from an ocean bottom hydrophone network, suitable for 3D tomography. Near Jaco and Parrita Scars, digital sediment echosounder and seismic data show pronounced lateral amplitude variations at the sea floor and in shallow sub-surface, which may indicate carbonate precipitation, shallow gas accumulation and gas hydrate occurrences associated with complex small scale faulting patterns.

Fekete, N.; Spiess, V.; Heidersdorf, F.; v. Lom, H.; Zuehlsdorff, L.; Denil, D.; Huguen, C.; Schnabel, M.

2003-04-01

71

The Stoic Place  

NSDL National Science Digital Library

Probably everything you always wanted to know about stoicism but were too stoical to ask is available on this Website. The brainchild of Western Kentucky University philosophy professor, Jan Garrett, the Stoic Place gives a fairly detailed introduction to the ideas of ancient and modern stoics, clearing up some misconceptions along the way -- such as the notion that stoics were supposed to be indifferent to pleasure. Also included here are full online texts of philosophers of stoicism as well as links to other sites holding texts, recent academic work on the stoics, and information on (and a link for) joining the International Stoic Forum. Go ahead, indulge yourself.

72

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any and to communicate effectively · Familiarity with imaging algorithms such as auto-exposure, auto-white balancing

Zanibbi, Richard

73

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

Imaging Systems, a division of Canfield Scientific, Inc., is the leading supplier of digital photographic equipment, imaging software, and computer systems for advanced patient imaging serving physicians and the healthcare industry. Canfield Scientific provides the highest quality products, clinical research support

Zanibbi, Richard

74

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

of Harvard Medical School. The positions involve image processing research for development of medical devices will have PhD in EE, CS, or similar areas, a track record of work on image processing or DSPCenter for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any

Zanibbi, Richard

75

The Trade Card Place  

NSDL National Science Digital Library

Author and collector Ben Crane maintains The Trade Card Place for "all who are interested in Victorian Trade Cards used to advertise American goods and services during the late 1800s." Although the site is geared toward collectors, hosting dealer, collector, and organization directories for the potential Victorian Trade Card buyer, advertising students may also be interested, as Crane includes articles on trade card history and, in his Victorian Scrapbook archive, has posted thumbnail images of cards on subjects ranging from beverages and clothing to toys and tobacco.

76

Detail of Triton  

NASA Technical Reports Server (NTRS)

This color photo of Neptune's large satellite Triton was obtained on Aug. 24 1989 at a range of 530,000 kilometers (330,000 miles). The resolution is about 10 kilometers (6.2 miles), sufficient to begin to show topographic detail. The image was made from pictures taken through the green, violet and ultraviolet filters. In this technique, regions that are highly reflective in the ultraviolet appear blue in color. In reality, there is no part of Triton that would appear blue to the eye. The bright southern hemisphere of Triton, which fills most of this frame, is generally pink in tone as is the even brighter equatorial band. The darker regions north of the equator also tend to be pink or reddish in color. JPL manages the Voyager project for NASA's Office of Space Science, Washington, DC.

1998-01-01

77

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

the programming experience requirements. Proven track record of color algorithm design and development Experience with color workflow design in a production environment is a plus We are especially enthusiasticCenter for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any

Zanibbi, Richard

78

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have anyD video processing, production and visual quality; programming, software engineering and design. Experience: Minimum 5 years of applied research and experience, of which at least 3 must be in state

Zanibbi, Richard

79

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

and development, Corning staunchly believes in change. We thrive on seeking new opportunities to make a difference -- technologies that improve our lives and change our world. R&D is the foundation on which Corning's history hasCenter for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any

Zanibbi, Richard

80

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

implementation. Essential Job Functions: New Technology Development · Conceive, develop and refine new concepts & Development Location: Vancouver State: BC Job ID: 1455 Duration: Full Time httpCenter for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any

Zanibbi, Richard

81

Places for Pedagogies, Pedagogies for Places  

ERIC Educational Resources Information Center

Working with an understanding of assemblage as the ad hoc groupings of vibrant materials and elements, this article argues that conceptualizing place as an assemblage opens possibilities for bridging the gap between subjects and objects that continue to structure pedagogy. Considering "place" as an assemblage of humans and their multiple "others"…

Duhn, Iris

2012-01-01

82

Detailed balance and entanglement  

E-print Network

We establish a connection between quantum detailed balance, which is a concept of importance in statistical mechanics, and entanglement. This is done in terms of quite a general formulation of detailed balance and a suitable representation of state purification.

Rocco Duvenhage; Machiel Snyman

2014-07-02

83

Drawing Designs in Detail  

NSDL National Science Digital Library

Students practice creating rudimentary detail drawings. They learn how engineers communicate the technical information about their designs using the basic components of detail drawings. They practice creating their own drawings of a three-dimensional block and a special LEGO piece, and then make 3D sketches of an unknown object using only the information provided in its detail drawing.

2014-09-18

84

Place and Being  

ERIC Educational Resources Information Center

Do places matter educationally? When Edward Casey remarks: "The world is, minimally and forever, a place-world", we might take this statement as presupposing without argument that places exist as a given, that we know what a place is, a point that Aristotle would have never taken for granted and in fact neither does Casey. I find Casey's remark…

Cannatella, Howard

2007-01-01

85

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross Bracing Detail, Vertical Cross Bracing-End Detail - Cumberland Covered Bridge, Spanning Mississinewa River, Matthews, Grant County, IN

86

Position Summary Employee Details  

E-print Network

: Analyst VIII, Project Management and QAQC Supervisor Supervisor Phone Number: 530-754-5857 POSITION DETAILS Job Summary: Under direct supervision of the Project Manager and QAQC Supervisor, responsible interviews) and maintaining detailed functional requirements for the MyInfoVault mission-critical system

California at Davis, University of

87

Images of a place and vacation preferences: Implications of the 1989 surveys for assessing the economic impacts of a nuclear waste repository in Nevada  

SciTech Connect

In July, 1989 the authors produced a report titled Perceived Risk, Stigma, and Potential Economic Impacts of a High-Level Nuclear-Waste Repository in Nevada (Slovic et al., 1989). That report described a program of research designed to assess the potential impacts of a high-level nuclear waste repository at Yucca Mountain, Nevada upon tourism, retirement and job-related migration, and business development in Las Vegas and the state. It was concluded that adverse economic impacts potentially may result from two related social processes. Specifically, the study by Slovic et al. employed analyses of imagery in order to overcome concerns about the validity of direct questions regarding the influence of a nuclear-waste repository at Yucca Mountain upon a person`s future behaviors. During the latter months of 1989, data were collected in three major telephone surveys, designed to achieve the following objectives: (1) to replicate the results from the Phoenix, Arizona, surveys using samples from other populations that contribute to tourism, migration, and development in Nevada; (2) to retest the original Phoenix respondents to determine the stability of their images across an 18-month time period and to determine whether their vacation choices subsequent to the first survey were predictable from the images they produced in that original survey; (3) to elicit additional word-association images for the stimulus underground nuclear waste repository in order to determine whether the extreme negative images generated by the Phoenix respondents would occur with other samples of respondents; and (4) to develop and test a new method for imagery elicitation, based upon a rating technique rather than on word associations. 2 refs., 8 figs., 13 tabs.

Slovic, P.; Layman, M.; Flynn, J.H.

1990-11-01

88

Place Value Rocks!  

NSDL National Science Digital Library

Play these educational math games and test your knowledge of Place Value! Can you use Place Value Blocks to help you represent different digits? Test your ability to write out given numbers into sentences with Cookies! How sharp are your place value skills? Test your knowledge with Golfing with numbers!! Be the hero of the day as you practice place value skills in the Lifeguard game! Reveal the ...

Ms.roberts

2009-03-04

89

Summer Place Value  

NSDL National Science Digital Library

Play some fun games with your new place value skills Match the number words to the standard form to find the place value mystery picture. Can you solve the place value puzzler? Click on easy and follow the instructions. Check your score after the picture is shown. How many tries did it take you to be able to see the picture. If it ...

Korth, Mrs.

2009-07-27

90

Place-Identity in Urban Settings.  

ERIC Educational Resources Information Center

The concept of place identity is a theoretical necessity for understanding the impact of the urban environment on the individual. Place identity refers to clusters of perceptions in the form of images, memories, facts, ideas, beliefs, values, and behavior tendencies relevant to the individual's existence in the physical world. These clusters are…

Proshansky, Harold M.

91

Mouse Repository Strain Details  

Cancer.gov

This is a knock-in of Cre into the Nkx3.1 locus, placing it under the transcriptional control of the Nkx3.1 promoter, and creating a null allele. Cre recombinase activity is detected in nearly all prostate epithelial cells (luminal and basal) starting from before birth.

92

The value of place  

NASA Astrophysics Data System (ADS)

This commentary seeks to expand the dialogue on place-based science education presented in Katie Lynn Brkich's article, where the connections fifth grade students make between their formal earth science curriculum and their lived experiences are highlighted. The disconnect between the curriculum the students are offered and their immediate environment is clear, and we are presented with examples of how they strive to make connections between the content and what they are familiar with—namely their surroundings. "Place" is identified as a term with complex meanings and interpretations, even in the scope of place-based science education, and understanding how the term is used in any given scenario is essential to understanding the implications of place-based education. Is place used as a location, locale or a sense of place? To understand "place" is to acknowledge that for the individual, it is highly situational, cultural and personal. It is just such attributes that make place-based education appealing, and potentially powerful, pedagogically on one hand, yet complex for implementation on the other. The argument is posed that place is particularly important in the context of education about the environment, which in its simplest manifestation, connects formal science curriculum to resources that are local and tangible to students. The incorporation of place in such a framework seeks to bridge the gap between formal school science subjects and students' lived experiences, yet acknowledges the tensions that can arise between accommodating place meanings and the desire to acculturate students into the language of the scientific community. The disconnect between guiding policy frameworks and the reality of the Next Generation Science Standards is addressed opening an avenue for further discussion of the importance of socio-cultural frameworks of science learning in an ever increasing era of accountability.

Dentzau, Michael W.

2014-03-01

93

Teaching Bodies in Place  

ERIC Educational Resources Information Center

Background/Context: This piece draws on literature in justice-oriented teacher education, feminist pedagogy, and postmodern notions of bodies and place to make sense of data generated from a three-year study of an undergraduate teacher education course. A feminist lens was used to engage a body- and place-focused pedagogy that aimed to engage…

Jones, Stephanie; Woglom, James F.

2013-01-01

94

Place My Past  

NSDL National Science Digital Library

Place My Past is a handy application designed to map a family history via historical maps made available online. After uploading family information, visitors can use the annotation tools to mark places on the map for future reference and use. It's a great way to bring a few different worlds together and it's compatible with all operating systems.

2014-05-08

95

More Place Value Activities  

NSDL National Science Digital Library

This webpage contains instructions for several activities and games designed to develop students' understanding of place value while reinforcing addition and subtraction skills. Downloadable materials and suggestions for variations are included along with links to online games. This is the second of two pages of similar activities. The first, Place Value Activities, is catalogued separately.

Terry Kawas

2010-01-01

96

Place Value Activities  

NSDL National Science Digital Library

This webpage contains instructions for several activities and games designed to develop students' understanding of place value while reinforcing addition and subtraction skills. Downloadable materials and suggestions for variations are included. A second page of additional activities is catalogued separately (More Place Value Activities).

Terry Kawas

2003-01-01

97

Arch & Chord Joint Detail; Crossbracing Center Joint Detail; Chord, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Arch & Chord Joint Detail; Crossbracing Center Joint Detail; Chord, Panel Post, Tie & Diagonal Brace Joint Detail; Chord, Panel Post, Tie & Crossbracing Joint Detail - Dunlapsville Covered Bridge, Spanning East Fork Whitewater River, Dunlapsville, Union County, IN

98

Chord Splicing & Joining Detail; Chord & CrossBracing Joint Details; ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Chord Splicing & Joining Detail; Chord & Cross-Bracing Joint Details; Cross Bracing Center Joint Detail; Chord & Diagonal Joint Detail - Vermont Covered Bridge, Highland Park, spanning Kokomo Creek at West end of Deffenbaugh Street (moved to), Kokomo, Howard County, IN

99

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Cryoarchived Strains   Strain Number: 01XB8  Common Strain Name: Brca1 floxed (FVB;129)  Strain Nomenclature: FVB;129-Brca1tm1Brn/Nci  Release Category (Required for MTA form): C2 , D Sample MTA for this strain Strain

100

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01XBL  Common Strain Name: Myf6-ires-cre knock-in  Strain Nomenclature: B6;129-Myf6tm2(cre)Mrc/Nci  Release Category (Required for MTA form): C1 , D Sample MTA for this strain Animal

101

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01XD8  Common Strain Name: Fabp1-Cre  Strain Nomenclature: FVB/N-Tg(Fabp1-Cre)1Jig/Nci  Release Category (Required for MTA form): B1 , D Sample MTA for this strain Animal Health Report

102

Detail of pahoehoe lobe  

USGS Multimedia Gallery

A detail of a pahoehoe lobe at the top of a tumulus. The upper crust that is lifted up during the formation of a tumulus is typically quite vesicular (has lots of bubbled trapped in it). Roza Formation, Columbia River Basalt Group. Southwest of Quincy, WA. Tumuli are structures usually associated w...

103

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01XG2  Common Strain Name: MMTV/c-myc  Strain Nomenclature: FVB-Tg(MMTV-Myc)141-3Led/Nci  Release Category (Required for MTA form): B5 , D Sample MTA for this strain Animal Health

104

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Cryoarchived Strains   Strain Number: 01X67  Common Strain Name: CAG-LSL-EGFR-WT  Strain Nomenclature: STOCK Col1a1tm1(CAG-EGRF)Char/Nci  Release Category (Required for MTA form): B3 , D Sample MTA for this

105

Corporate Affiliate Event Details  

E-print Network

2013 Corporate Affiliate PROPOSAL #12;Event Details Date: October 3-4, 2013 Location: Northwestern Counsel Institute Affiliate Program? Affiliates of the Corporate Counsel Institute (CCI) are law firms and marketing benefits. Extend this highly-regarded educational oppor- tunity throughout your organization

Shahriar, Selim

106

Firm Affiliate Event Details  

E-print Network

to a targeted in-house counsel audience through our unique marketing mix. Firm Affiliate $4,500 5 Registrations2013 Firm Affiliate PROPOSAL #12;Event Details Date: October 3-4, 2013 Location: Northwestern Law Institute Affiliate Program? Affiliates of the Corporate Counsel Institute (CCI) are law firms

Shahriar, Selim

107

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01X62  Common Strain Name: Arf floxed  Strain Nomenclature: B6.129-Cdkn2atm4Cjs/Nci  Release Category (Required for MTA form): B1 Sample MTA for this strain Animal Health Report in

108

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01XB2  Common Strain Name: Ink4a/Arf null (FVB)  Strain Nomenclature: FVB.129-Cdkn2atm1Rdp/Nci  Release Category (Required for MTA form): C3 Sample MTA for this strain Animal Health

109

Position Summary Employee Details  

E-print Network

.6193 POSITION DETAILS Job Summary: Under the direction of the IET Application Development Managers, develop Specific Job Scope: This position is part of the IET Application Development team, which provides programmers across the nation. 10% TECHNOLOGY RESEARCH - Keep up with changes to the Java programming language

California at Davis, University of

110

A sense of place  

E-print Network

The thesis argues that a sense of place is one of the most fundamentally important quality of architecture and cities and attempts to show that legibility and latency are the aspects of the environment which contribute ...

Brown, Blain, M. Arch. Massachusetts Institute of Technology

1981-01-01

111

Place Value Made Simple  

NSDL National Science Digital Library

Students will read, write, and represent whole numbers from 0 - 1,000,000 using symbols, models, expanded form, and words. Base ten blocks, place value pocket charts, folded paper strips for expanded form accordions, and checks are used.

Service, National S.

2009-05-19

112

About Maggie's Place.  

ERIC Educational Resources Information Center

Describes "Maggie's Place," the library computer system of the Pikes Peak Library District, Colorado Springs, Colorado, noting its use as an electronic card catalog and community information file, accessibility by home users and library users, and terminal considerations. (EJS)

Emmens, Carol E.

1982-01-01

113

in all places discovering  

E-print Network

and places to do this can often seem a luxury in the hectic pace of contemporary life. This Prayer Map not in Jerusalem alone but everywhere in spirit and truth. Adapted from Karl Rahner table of contents

Huang, Jianyu

114

Artist Place Settings  

ERIC Educational Resources Information Center

Art history can be a little dry at times, but the author is always trying to incorporate new ways of teaching it. In this article, she describes a project in which students were to create a place setting out of clay that had to be unified through a famous artist's style. This place setting had to consist of at least five pieces (dinner plate, cup…

Pellegrino, Linda

2009-01-01

115

Mouse Repository Strain Details  

Cancer.gov

The doxycycline-dependent transcriptional repressor, tTA, was placed under control of the bovine keratin 5 (K5, KRT5) promoter. When tested on a tetO-LacZ transgenic background, doxycycline suppressed expression of beta-galactosidase in a tissue-specific manner. Reduced beta-galactosidase activity was detected in skin (basal layer of the epidermis and hair follicles), tongue, forestomach, and trachea. No reduction was seen in tissues that do not express endogenous keratin 5 (liver, spleen, muscle, heart, intestine).

116

Mouse Repository Strain Details  

Cancer.gov

A Cre-inducible luciferase transgene was targeted into the Rosa26 locus and is driven by a CMV-based promoter. This allele when used in combination with Cre-regulated oncogenes or tumor suppressors can allow for noninvasive detection of tumors in mice. This allele permits serial imaging of mice, thus increasing the utility of mouse tumor models as a system to test therapeutics.

117

Details of meiosis  

SciTech Connect

Chapter 18, discusses the details of meiosis, beginning with the structure and number of chiasmata, i.e., the cytological term for two homologous chromosomes forming a bivalent which begin to repel each other until they are held together only at the point of crossing-over. The synaptonemal complex which consists of two lateral elements which contain protein and RNA is also discussed. The chapter concludes with a description of meiosis in polyploids, human meiosis, and the behavior of X and Y chromosomes. 28 refs., 8 figs.

NONE

1993-12-31

118

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross Bracing Joint, Vertical Cross Bracing End Detail - Ceylon Covered Bridge, Limberlost Park, spanning Wabash River at County Road 900 South, Geneva, Adams County, IN

119

Montana Place Names Companion  

NSDL National Science Digital Library

Billed as covering everything from "Alzada to Zortman", the Montana Place Names Companion website tells the story of Montana's place names. The project began years ago at the reference desk at the Montana Historical Society Research Center in Helena when a patron called about the origin of a mountain peak name. Over the years, a team of dedicated individuals began to compile thousands of pieces of information about cities, rivers, and mountains across the Big Sky state. Now all of this material can be found here, courtesy of the National Resource Information System at the Montana State Library. Visitors can select a place name from the drop-down menu, type in a keyword, or click on the interactive map of the state. First-time visitors may wish to start by looking at Absarokee, Porcupine Butte, and Swimming Woman Creek.

120

The Space Place  

NSDL National Science Digital Library

The Space Place demonstrates and explains scientific concepts related to astronomy in a fun, hands-on manner that is tailored to grade school children. Sponsored by NASA, the California Institute of Technology, and a consortium of other technology partners, The Space Place offers a simple, clutter-free forum where children can learn about such topics as stars, the earth, ions, and interferometry by baking cookies, navigating a maze, and solving a riddle. The explanations that follow the activities are clear and concise enough for even adults to understand.

121

Image quality evaluation of infrared image  

Microsoft Academic Search

According to the imaging procedure an infrared picture include an object image, a background image and a noise image. The object image and the background image are main body of an infrared image; noise image is the disturbance on the main body. This paper discusses the infrared image quality from three aspects: information capacity, image detail and pseudo-s\\/n ratio, it

Chun-mei Xu; Gang Li; Wengang Hu; Wei Zhang

2005-01-01

122

Place Value Mathlets  

NSDL National Science Digital Library

This series of interactive JavaScript applets helps children understand place value in our base-10 system. The mathlets provide visual models of what happens as one counts by various powers of 10 in a progression from single units to tokens representing groups to a position-based numeration system. The resource includes an explanation of each applet.

2014-01-01

123

Schools as Dangerous Places  

ERIC Educational Resources Information Center

When students set off for school each day how many of them or their caregivers consider for a moment that they will spend the day at a potentially dangerous place? On the contrary, students and caregivers probably view schools as safe havens, and official research suggests that this is the case for the majority of teachers and pupils. However,…

Potts, Anthony

2006-01-01

124

Finding Place in Education  

ERIC Educational Resources Information Center

As a society, we are less and less comfortable in our localities. We have embraced the idea of a globalized placelessness, where everything, everywhere, resonates with a sameness. What do we lose, educationally and in society at large, when we reduce our inhabited places to those components that provide material wealth alone? If students and…

Peters, Chris

2011-01-01

125

Place and Location  

NSDL National Science Digital Library

Throughout recorded history, humans have explored and thought about their relationship with the world around them through writing, art, philosophical musings, and so on. The people behind the Place and Location journal are interested in such matters, and they have created this annual periodical in order to explore creative connections in human-environment relations, the dynamic environment, and other topics. The journal commenced publication in 2000, and visitors with a penchant for such affairs can look at the complete contents of the issues published thus far. All the articles can be read in English and some of them are also available in Estonian. Within these digital pages, visitors will find articles including "The Wilderness City: An Essay on Metaphorical Experience" and "How Spatial is a Whale? Places and Processes in Zoomusicology".

126

Faraway Places, Fabulous Journeys: Travels on Paper, 1450-1700  

NSDL National Science Digital Library

Using this small web feature from the National Gallery of Art, visitors can closely examine four relatively fragile and little seen works from the Gallery's collections: The Triumph of Dionysus, ca. 1598, an etching by Pierre Brebiette; The Land of Cockaigne, 1564, an etching by Niccol" Nelli; seven scenes from The Journey to Constantinople, published 1553, a woodcut by Pieter Coecke van Aelst; and Etow Oh Koam, King of the River Nation, ca. 1710, a mezzotint by John Simon. What these works have in common (as well as the sixty works on paper on view at the museum thorough September 16, 2007) is that they were created to give Europeans a glimpse of distant and imaginary places, at a time when images were in much shorter supply than at present, and photography did not exist. Each print is presented with numbered details that can be moused over for more information. For example, in the mythical Land of Cockaigne there is a pot on top of a mountain of cinnamon that spews out pasta. It is also possible to zoom in on any of the images, for a close up of additional details, such as the turtle totem of Etow Oh Koam.

2007-01-01

127

10. HISTORIC PHOTOGRAPH, DETAIL OF BRIDGE UNDER CONSTRUCTION, SUPPORT FOR ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

10. HISTORIC PHOTOGRAPH, DETAIL OF BRIDGE UNDER CONSTRUCTION, SUPPORT FOR ROAD DECK AND BRACING BEING PLACED, CA. 1935. COLLECTION CONNECTICUT DEPARTMENT OF TRANSPORTATION. - Merritt Parkway, Saugatuck River Bridge, Spanning Saugatuck River, Westport, Fairfield County, CT

128

Recreating place: Little Lon  

Microsoft Academic Search

In 1948, Little Lon was razed to the ground. Almost every visible vestige of the vibrant, multicultural, working-class community of Little Lon was lost. All that remained in popular consciousness was an image of Little Lon as a slum, riddled with poverty, prostitution and drug addiction.This myth has been challenged in Melbourne Museum's new exhibition The Melbourne Story, in which

Charlotte H. F. Smith; Deborah Tout-Smith

2010-01-01

129

Space Place: Cosmic Colors  

NSDL National Science Digital Library

This interactive, web-based viewer lets student select a celestial object (planet, galaxy, etc.), then select a EM wavelength range to view it (e.g., visible, ultraviolet, infrared). Images are from various ground- and space-based telescopes. Also, background info is provided on the electromagnetic spectrum and different types of telescopes.

130

The Greatest Places  

NSDL National Science Digital Library

Associated with the Science Museum of Minnesota, this Web site is a companion to the large-format film "The Greatest Places." Each of seven geographically diverse areas are featured, along with selected aspects of their culture and biological resources. The Okovango Delta and Madagascar sections have a stronger focus on the flora and fauna of the areas, while the others focus more on the culture and geography. This site is an interesting taste of seven unique areas and includes plenty of links for those who are looking for more.

1997-01-01

131

Finding Your Place in Art History.  

ERIC Educational Resources Information Center

Describes an art history project used with fifth-grade students where they selected a famous painting as a background for a self-portrait. Explains how the students used Adobe Photoshop to place a digital photograph of themselves into a scanned image of the artwork. (CMK)

Murphy, Lauren Parmelee

2003-01-01

132

Detail, Scandia Hotel, view to southwest showing details of balloon ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail, Scandia Hotel, view to southwest showing details of balloon framing, including full two-story studs notched to carry girts supporting second story floor joists (210mm lens) - Scandia Hotel, 225 First Street, Eureka, Humboldt County, CA

133

17. DETAIL OF INTERIOR AND EXTERIOR WALL CONSTRUCTION, VIEW TOWARD ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. DETAIL OF INTERIOR AND EXTERIOR WALL CONSTRUCTION, VIEW TOWARD NORTHEAST CORNER, THIRD BAY Showing insulated exterior wall at right; asphalt felt on interior separation wall at left; sill beam, stud, and concrete foundation detailing of interior wall. - U.S. Military Academy, Ice House, Mills Road at Howze Place, West Point, Orange County, NY

134

Influences on physicians' adoption of electronic detailing (e-detailing).  

PubMed

E-detailing means using digital technology: internet, video conferencing and interactive voice response. There are two types of e-detailing: interactive (virtual) and video. Currently, little is known about what factors influence physicians' adoption of e-detailing. The objectives of this study were to test a model of physicians' adoption of e-detailing and to describe physicians using e-detailing. A mail survey was sent to a random sample of 2000 physicians practicing in Iowa. Binomial logistic regression was used to test the model of influences on physician adoption of e-detailing. On the basis of Rogers' model of adoption, the independent variables included relative advantage, compatibility, complexity, peer influence, attitudes, years in practice, presence of restrictive access to traditional detailing, type of specialty, academic affiliation, type of practice setting and control variables. A total of 671 responses were received giving a response rate of 34.7%. A total of 141 physicians (21.0%) reported using of e-detailing. The overall adoption model for using either type of e-detailing was found to be significant. Relative advantage, peer influence, attitudes, type of specialty, presence of restrictive access and years of practice had significant influences on physician adoption of e-detailing. The model of adoption of innovation is useful to explain physicians' adoption of e-detailing. PMID:19306198

Alkhateeb, Fadi M; Doucette, William R

2009-01-01

135

Place memory in crickets  

PubMed Central

Certain insect species are known to relocate nest or food sites using landmarks, but the generality of this capability among insects, and whether insect place memory can be used in novel task settings, is not known. We tested the ability of crickets to use surrounding visual cues to relocate an invisible target in an analogue of the Morris water maze, a standard paradigm for spatial memory tests on rodents. Adult female Gryllus bimaculatus were released into an arena with a floor heated to an aversive temperature, with one hidden cool spot. Over 10 trials, the time taken to find the cool spot decreased significantly. The best performance was obtained when a natural scene was provided on the arena walls. Animals can relocate the position from novel starting points. When the scene is rotated, they preferentially approach the fictive target position corresponding to the rotation. We note that this navigational capability does not necessarily imply the animal has an internal spatial representation. PMID:18230590

Wessnitzer, Jan; Mangan, Michael; Webb, Barbara

2008-01-01

136

Pike Place Market Centennial  

NSDL National Science Digital Library

The Pike Place Market has been an integral part of Seattle's landscape since 1907 with its amazing mix of vendors and merchants, tourists, locals, and the generally curious. This remarkable exhibit brings together items from the Seattle Municipal Archives, such as photographs, handbills, documents, and other items from the past century. Visitors can learn about its founding and development through thirteen different areas, including Early Expansion, Privatization, Citizen Protests, and Plans for Change. There are even radio clips from politicians and residents talking about the market, including the mayor of Seattle. Urban historians and planners will find this site particularly noteworthy as it presents an amazing case study of preservation amidst a dense urban environment.

137

IDENTITY OF PLACE, PLACES OF IDENTITIES: CHANGE OF PLACE NAMES IN POST-APARTHEID SOUTH AFRICA  

Microsoft Academic Search

Various types of transformations of toponyms coexist today in South Africa at every scale: street, suburb, village, town, city, municipality, district, province and country. Place names contribute to forging the identity of particular places, at different scales. The combination between place and scale creates various sets of identities. The change of place names is a pertinent tool to analyse territorial

S. GUYOT; C. SEETHAL

2007-01-01

138

People, Places and Planning in Boston  

NSDL National Science Digital Library

This remarkable site was created by a team of researchers at MIT, including Professor Tunney Lee, James Madden, and Alpita Masurkar, "to provide a comprehensive and accessible history of Boston's development for planners, students, and anyone interested in our city." The materials on the site are divided into six sections: Eras, People, Places, Planning, Stories, and Maps. The Places section is a great place to start as it contains profiles of communities like Beacon Hill and the West End, which have gone through dramatic changes over the past three centuries or so. The Maps area is a great way to experience the expansion of the urbanized area (complete with details on political boundary changes) from the Salem south to Quincy. The Planning area contains well-developed sections that examine affordable housing, parks and open space, and participatory community planning.

2012-01-01

139

Place Bonding for Recreation Places: Conceptual and Empirical Development  

Microsoft Academic Search

Place bonding is a common phenomenon in many recreation areas, where people develop an affective and cognitive based attachment to special resource settings. Conceptually, place bonding is fairly well understood; empirically it is less so. In this study, a five dimensional orientation to place bonding of trout anglers for a wild and scenic stream was conceptually and empirically developed. The

William E. Hammitt; Erik A. Backlund; Robert D. Bixler

2006-01-01

140

Time, Place, and Content 53 Time, Place, and Content  

E-print Network

Time, Place, and Content 53 Time, Place, and Content Jonathon D. Crystal University of Georgia The goal of this article is to integrate information about basic mechanisms of time perception with research on time-place learning and research on the discrimination of what, when, and where (WWW). Several

Cook, Robert

141

24. INTERIOR DETAIL FROM THE SOUTH END OF THE DELIVERY ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

24. INTERIOR DETAIL FROM THE SOUTH END OF THE DELIVERY (RECEIVING LEVEL. THE DETAIL SHOWS THE WINDING DRUM AND REVERSING CLUTCH FOR THE TRAMWAY ORE CAR, AND AN ORE CHUTE IN THE FLOOR) FOREGROUND BOTTOM LEFT OF THE IMAGE). - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

142

Correcting B0 Distortion in EPI Using PLACE Robert Bussell  

E-print Network

data: Acquire your scan of interest using an EPI protocol in the normal way. Step 2 Acquire a PLACE should be "-1" and "0". 4 Phase Roll If you images were acquiried off-center in the phase direction, they will no longer be centered. This is because the PLACE algorithm removes the phase roll in the phase encoding

Squire, Larry R.

143

Place Marketing, Strategic Planning and Competitiveness: The Case of Malta  

Microsoft Academic Search

This article investigates place marketing and strategic planning processes in the case of Malta Island as a competitive tourist destination. The article focuses on the main ingredients that compose the marketing and strategic planning performance and presents the repositioning process of Malta's image in the international tourism market. The article concludes that place marketing is a strategic process with particular

Theodore Metaxas

2009-01-01

144

Collections Services People Places olioCollections Services People Places  

E-print Network

Cold Cases 6 Teaching Award Winners 7 Friends of OSUL News 8 Thompson Woodwork 9 Sunday Funnies 10 Dear ­ are impressive. We are at or above the average for all Association for Research Libraries (the top 125 research in publishing, research and teaching Library as place­ Enhance the Libraries' place as a cultural, social

145

Testimony on Smoking in Public Places and Places of Employment  

Cancer.gov

I am Harold Varmus, the President of Memorial Sloan-Kettering Cancer Center in New York City, and I thank you for the opportunity to speak in support of Mayor Bloomberg's proposal to strengthen the city's prohibitions against smoking in public places and places of employment.

146

HOST EXPLANATION FORM HOST DETAILS  

E-print Network

was purchased) WHEN (dates and times) WHY (business purpose) REMINDERS: Attach original receipts Attach Community Goodwill H6 Employee Goodwill H8 Table Purchase - Not Donor Paid H9 Table Purchase - Donor Paid HD, but is not limited to, amount, date, time, place, business purpose and business relationship of those attending

Hemmers, Oliver

147

PLACE NAMES IN THE CLASSROOM.  

ERIC Educational Resources Information Center

ALTHOUGH "PLACE-NAMING" IS A BASIC HUMAN FUNCTION, THE STUDY OF THE ORIGIN OF PROPER NAMES OF PERSONS AND PLACES (ONOMASTICS) HAS BEEN LARGELY IGNORED BY AMERICAN PHILOLOGISTS AND TEACHERS OF ENGLISH. DESPITE A PAUCITY OF RESEARCH, HOWEVER, ANY ENGLISH TEACHER WHO WANTS TO INTEREST STUDENTS IN ONOMASTIC INVESTIGATION CAN EXPLOIT THE GREAT BODY OF…

HARDER, KELSIE B.

148

NOSS Altimeter Detailed Algorithm specifications  

NASA Technical Reports Server (NTRS)

The details of the algorithms and data sets required for satellite radar altimeter data processing are documented in a form suitable for (1) development of the benchmark software and (2) coding the operational software. The algorithms reported in detail are those established for altimeter processing. The algorithms which required some additional development before documenting for production were only scoped. The algorithms are divided into two levels of processing. The first level converts the data to engineering units and applies corrections for instrument variations. The second level provides geophysical measurements derived from altimeter parameters for oceanographic users.

Hancock, D. W.; Mcmillan, J. D.

1982-01-01

149

Detail Drawings: Communicating with Engineers  

NSDL National Science Digital Library

Students are introduced to detail drawings and the importance of clearly documenting and communicating their designs. They are introduced to the American National Standards Institute (ANSI) Y14.5 standard, which controls how engineers communicate and archive design information. They are introduced to standard paper sizes and drawing view conventions, which are major components of the Y14.5 standard.

Integrated Teaching and Learning Program,

150

This Corner of Canaan: Curriculum Studies of Place and the Reconstruction of the South  

Microsoft Academic Search

No region has more distinct images of place than the South. This Corner of Canaan: Curriculum Studies of Place & the Reconstruction of the South makes a unique contribution to studies of curriculum and place, linking the particularities of Southern culture to social concerns of curriculum theory. Written by a Southerner about the South, this book extends curriculum of place

R. Ugena Whitlock

2007-01-01

151

Images  

Cancer.gov

Images can be a powerful and direct means of communicating ideas and feelings about an organization and can create a personal connection with an audience. Imagery used for the main NCI website has been selected to give a consistent look throughout the site. Here are some recommended attributes for NCI website imagery.

152

Home as place for healing.  

PubMed

Although environment is a core concept in nursing, it has had little theoretical or empirical attention, especially related to healing. This article explores the following aspects of the meaning of healing as they relate to environment as place: (a) healing is grounded in suffering; (b) healing is active and requires presence of the patient and the nurse; and (c) healing is private, spiritual, and profound. Home is explored as a place for healing. The article explores implications for the study of meaning of home, when home is not a place for healing, and future directions for theory and research. PMID:18724115

Marshall, Elaine Sorensen

2008-01-01

153

22. Detail view of sign suspended from portal strut (this ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

22. Detail view of sign suspended from portal strut (this sign was located at the same place at both ends of Moody Bridge). Bottom: General elevation view to southeast showing northern abutment with solid rock foundation. - Moody Bridge, Spanning South Fork Eel River, Garberville, Humboldt County, CA

154

18. DETAIL OF EXTERIOR WALL CONSTRUCTION, VIEW TOWARD EAST, THIRD ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

18. DETAIL OF EXTERIOR WALL CONSTRUCTION, VIEW TOWARD EAST, THIRD BAY Showing furring strips, kraft faced cellulose fiber insulation, and asphalt felt applied to interior of exterior wall studs. - U.S. Military Academy, Ice House, Mills Road at Howze Place, West Point, Orange County, NY

155

19. DETAIL OF INTERIOR WALL CONSTRUCTION, VIEW TOWARD SOUTH, THIRD ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

19. DETAIL OF INTERIOR WALL CONSTRUCTION, VIEW TOWARD SOUTH, THIRD BAY Showing asphalt felt applied to both sides of interior wall studs beneath wood cladding. Back-nailing of felt indicates sequence of felt and cladding installation. - U.S. Military Academy, Ice House, Mills Road at Howze Place, West Point, Orange County, NY

156

Art deco railing detail on SE side. Partial segment in ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Art deco railing detail on SE side. Partial segment in left foreground is same as center segment in photo WA-141-5. - Raging River Bridge No. 234A, Preston-Fall City Road & Southeast Forty-fourth Place, Fall City, King County, WA

157

16. DETAIL OF END OF SWING SPAN (LEFT) AND SOUTH ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

16. DETAIL OF END OF SWING SPAN (LEFT) AND SOUTH END OF NORTH STATIONARY SPAN REVEALING IRON SKID AND SWING BALANCE SUPPORT WHEEL. NOTE CHAIN USED TO HOLD BRIDGE IN PLACE - Maurice River Pratt Through-Truss Swing Bridge, Spanning Maurice River, Mauricetown, Cumberland County, NJ

158

Color Image Segmentation in a Quaternion Framework.  

PubMed

In this paper, we present a feature/detail preserving color image segmentation framework using Hamiltonian quaternions. First, we introduce a novel Quaternionic Gabor Filter (QGF) which can combine the color channels and the orientations in the image plane. Using the QGFs, we extract the local orientation information in the color images. Second, in order to model this derived orientation information, we propose a continuous mixture of appropriate hypercomplex exponential basis functions. We derive a closed form solution for this continuous mixture model. This analytic solution is in the form of a spatially varying kernel which, when convolved with the signed distance function of an evolving contour (placed in the color image), yields a detail preserving segmentation. PMID:21243101

Subakan, Ozlem N; Vemuri, Baba C

2009-01-01

159

Place prioritization for biodiversity content  

Microsoft Academic Search

The prioritization of places on the basis of biodiversity content is part of any systematic biodiversity conservation planning\\u000a process. The place prioritization procedure implemented in the ResNet software package is described. This procedure is primarily\\u000a based on the principles of rarity and complementarity. Application of the procedure is demonstrated with two analyses, one\\u000a data set consisting of the distributions of

Sahotra Sarkar; Anshu Aggarwal; Justin Garson; Chris R. Margules; Juliane Zeidler

2002-01-01

160

John Dewey and a Pedagogy of Place  

ERIC Educational Resources Information Center

If asked to define the idea of "place" one might struggle. Yet people across time and cultures readily share examples of important places or safe places or "foreign" places with one another and offer heartfelt descriptions in literature and art of childhood places, favorite places, strange places. Akinbola Akinwumi, paraphrasing Yi-Fu Tuan,…

Jayanandhan, Stephanie Raill

2009-01-01

161

New Zealand Historic Places Trust  

NSDL National Science Digital Library

The New Zealand Historic Places Trust site contains several sections that will be of great assistance to persons interested in the area of historic and cultural preservation, or for those interested in a different perspective on the practice and art of historical preservation. The research centerpiece of the site is the New Zealand Historic Places Register, which contains information on over 1,000 different sites, including the Wahi Tapu, which are places sacred to the Maori, New Zealand's indigenous people. Searching the register is quite user-friendly, as visitors can search by place name, region, current or former use, dates of original construction, and a handful of other criteria. Similar to many other historic preservation agencies, the New Zealand Historic Places Trust also has a section devoted to Heritage at Risk, which lists existing historic structures or places that are currently threatened with demolition or significant alteration. For persons interested in visiting New Zealand, there is an interactive map divided into regions where basic information about the historic sites of interest throughout the country.

2001-01-01

162

Exercise-induced pulmonary haemorrhage in the horse: results of a detailed clinical, post mortem and imaging study. IV. Changes in the bronchial circulation demonstrated by C.T. scanning and microradiography.  

PubMed

The purpose of this study was to use radiographic contrast techniques and special imaging methods to identify and high-light bronchial arterial involvement in lung lesions associated with exercise-induced pulmonary haemorrhage (EIPH) in horses. The lungs from four horses with histories of EIPH were prepared for computerised tomographic scanning and microradiography by perfusing the broncho-oesophageal artery with a mixture of red latex and either barium or iodine contrast materials while the pulmonary supply received only blue latex. Computerised tomographic scan slices of the prepared inflated lungs were obtained from the caudal tip of the lung to the hilus. Microradiography of selected lung slices was also performed on a Faxitron. Diffuse areas of increased density, with preferential bronchial arterial supply noted on the computerised tomographic scans were confirmed by microradiography. Dense focal and diffuse plexuses of markedly hypertrophied and highly branched bronchial arterial networks were identified, centred around certain small airways. The vascular supply to these plexuses was recruited predominantly from neighbouring bronchial vessels, and in some cases, from the enlarged vasa vasorum of pulmonary arteries sending anastomoses to the affected areas. The authors conclude that bronchial vascular lesions in EIPH cases are the likely origin of haemorrhage; that small airway disease is the probable initiating stimulus for bronchial vascular proliferation in these lesions; and that the morphology and nature of the neovascular tissue in these lesions provides the conditions leading to haemorrhage in the lungs of horses with EIPH. PMID:3678182

O'Callaghan, M W; Pascoe, J R; Tyler, W S; Mason, D K

1987-09-01

163

Aircraft empennage structural detail design  

NASA Technical Reports Server (NTRS)

This project involved the detailed design of the aft fuselage and empennage structure, vertical stabilizer, rudder, horizontal stabilizer, and elevator for the Triton primary flight trainer. The main design goals under consideration were to illustrate the integration of the control systems devices used in the tail surfaces and their necessary structural supports as well as the elevator trim, navigational lighting system, electrical systems, tail-located ground tie, and fuselage/cabin interface structure. Accommodations for maintenance, lubrication, adjustment, and repairability were devised. Weight, fabrication, and (sub)assembly goals were addressed. All designs were in accordance with the FAR Part 23 stipulations for a normal category aircraft.

Meholic, Greg; Brown, Rhonda; Hall, Melissa; Harvey, Robert; Singer, Michael; Tella, Gustavo

1993-01-01

164

Study of the detail content of Apollo orbital photography  

NASA Technical Reports Server (NTRS)

The development and application of image evaluation methods for assessing the detail content of Apollo orbital photography was demonstrated. Edge analysis using shadow to sunlight edges interior to craters was successfully used to evaluate the fine detail content of Apollo 15, 16, and 17 imagery. A method for evaluating tone quality was developed using a gain factor as a function of object contrast and average exposure level that can be related to object detectability.

Kinzly, R. E.

1974-01-01

165

The Best Places to Work in the Federal Government  

NSDL National Science Digital Library

For those looking for a career change, and thinking about public service, they may be asking: "What are the best places to work in the federal government?". This site, developed by the Partnership for Public Service and the Institute for the Study of Public Policy Implementation, answers that very question in copious detail. The study uses data from the Office of Personal Management's 2002 Federal Human Capital Survey, in which a "Best Places to Work" index was created to measure overall employee satisfaction. A FAQ section is a good place to start as it features information about searching the rankings, what the rankings mean, and how the rankings were done. Getting down to the rankings, visitors can search rankings for 28 cabinet-level departments, independent agencies, and subagency level rankings as well. Visitors can also find out which places are best to work at for persons under 40, or by looking at places ranked by gender or minority status.

166

Meditations on Place and Spirit  

E-print Network

Kansas, my home place, I want to understand how other populations coexisted with the land in the past. The Iroquois saw the world as built on the back of Grandmother Turtle. When Grandmother Turtle died, they believed, the world ends. Many native... resources, our aquifers, our air, our plant and animal life are all being used and damaged faster than they are being replaced or protected. It is a weighty fact not to be denied. In my new place more than ever I find myself obsessively asking myself...

Schlegel, Lisa

2011-05-31

167

Education Place: Houghton Mifflin Science  

NSDL National Science Digital Library

Education Place presents Houghton Mifflin's K-6 science textbook support resources, organized by grade level. Each of the seven modules offers broad coverage of concepts in physical science, Earth science, and life science through a series of topic units. Each unit includes engaging activities such as Family Newsletters, Unit Bibliographies, Vocabulary Games, eGlossaries, Cricket Connections, and Discover! Simulations, with teacher support.

2005-09-14

168

The Mushroom Place. Part III.  

ERIC Educational Resources Information Center

The final installment of a series of articles on the "Mushroom Place" learning center program, which involves creative thinking activities for young, gifted students, describes "Doing It the Hard Way," a performance task which involves the actual construction of objects from a selected set of materials in the absence of the usual project tools.…

Schlichter, Carol

1978-01-01

169

Creative Teaching with Historic Places.  

ERIC Educational Resources Information Center

This journal contains articles and materials to help teachers instruct students about U.S. historical and cultural heritage. Articles and teaching materials are: "History in the Hands of Tomorrow's Citizens" (C. D. Shull; B. M. Boland); "On-Site Learning--The Power of Historic Places" (J. O. Horton); "Visualizing History--Inquiring Minds Want To…

Greenberg, Ronald M., Ed.

2000-01-01

170

Sense of Place in Appalachia.  

ERIC Educational Resources Information Center

This journal issue contains interviews, essays, short stories, and poetry focusing on sense of place in Appalachia. In interviews, author Wilma Dykeman discussed past and recent novels set in Appalachia with interviewer Sandra L. Ballard; and novelist Lee Smith spoke with interviewer Pat Arnow about how Appalachia has shaped her writing. Essays…

Arnow, Pat, Ed.

1989-01-01

171

Reading Place: Learning from the Savage Inequalities at Erasmus Hall  

ERIC Educational Resources Information Center

Through his detailed descriptions of schools across America, Kozol (1991) demonstrated the symbolic impact of the physical space of schools with disturbing examples of institutionalized racism made visible. Thus, Savage Inequalities also initiated a critical pedagogy of place by questioning the relationship of racial identity to the quality and…

Dickar, Maryann

2006-01-01

172

Morphological details in bloodstain particles.  

PubMed

During the commission of crimes blood can be transferred to the clothing of the offender or on other crime related objects. Bloodstain particles are sub-millimetre sized flakes that are lost from dried bloodstains. The nature of these red particles is easily confirmed using spectroscopic methods. In casework, bloodstain particles showing highly detailed morphological features were observed. These provided a rationale for a series of experiments described in this work. It was found that the "largest" particles are shed from blood deposited on polyester and polyamide woven fabrics. No particles are lost from the stains made on absorbent fabrics and from those made on knitted fabrics. The morphological features observed in bloodstain particles can provide important information on the substrates from which they were lost. PMID:25437904

De Wael, K; Lepot, L

2015-01-01

173

A Novel Approach for Detail-Enhanced Exposure Fusion Using Guided Filter  

PubMed Central

In this paper we propose a novel detail-enhancing exposure fusion approach using nonlinear translation-variant filter (NTF). With the captured Standard Dynamic Range (SDR) images under different exposure settings, first the fine details are extracted based on guided filter. Next, the base layers (i.e., images obtained from NTF) across all input images are fused using multiresolution pyramid. Exposure, contrast, and saturation measures are considered to generate a mask that guides the fusion process of the base layers. Finally, the fused base layer is combined with the extracted fine details to obtain detail-enhanced fused image. The goal is to preserve details in both very dark and extremely bright regions without High Dynamic Range Image (HDRI) representation and tone mapping step. Moreover, we have demonstrated that the proposed method is also suitable for the multifocus image fusion without introducing artifacts. PMID:24683353

Bhooshan, Sunil

2014-01-01

174

A novel approach for detail-enhanced exposure fusion using guided filter.  

PubMed

In this paper we propose a novel detail-enhancing exposure fusion approach using nonlinear translation-variant filter (NTF). With the captured Standard Dynamic Range (SDR) images under different exposure settings, first the fine details are extracted based on guided filter. Next, the base layers (i.e., images obtained from NTF) across all input images are fused using multiresolution pyramid. Exposure, contrast, and saturation measures are considered to generate a mask that guides the fusion process of the base layers. Finally, the fused base layer is combined with the extracted fine details to obtain detail-enhanced fused image. The goal is to preserve details in both very dark and extremely bright regions without High Dynamic Range Image (HDRI) representation and tone mapping step. Moreover, we have demonstrated that the proposed method is also suitable for the multifocus image fusion without introducing artifacts. PMID:24683353

Singh, Harbinder; Kumar, Vinay; Bhooshan, Sunil

2014-01-01

175

Introduction: Development's story in time and place.  

PubMed

In this introductory chapter, I place Bertram J. Cohler's () seminal essay Personal Narrative and Life Course in the context of the history of narrative psychology and developmental theory. I describe four theses from Personal Narrative and Life Course, which impacted developmental theory and research: (a) the self is a narrative project, (b) developmental periods have a distinct narrative character, (c) narratives are always told in (personal and historical) time, and (d) persons strive for coherence. I briefly describe the chapters to follow. However, my main goal is to argue for the implications of narrative for developmental science. Following Cohler, I argue that narrative has a central role to play in understanding human lives and can provide substantial benefit to developmental theory and research. A narrative perspective allows for a complex and nuanced description of developmental phenomena that accounts for the subjective and unpredictable nature of human lives. The narrative interpretation of experience is a primary human activity that alters the meaning of experience and potentially sets development on a new course, rendering the prediction of developmental outcomes a difficult venture. The narrative perspective provides detailed insights into how development unfolds, how persons actually interpret and reinterpret life in time and place, and can help psychologists to engage fundamental questions about the meaning of experience. PMID:25251506

Schiff, Brian

2014-09-01

176

4. Credit BG. Detail view of pair of Clayton steam ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Credit BG. Detail view of pair of Clayton steam generators. Left part of image shows front, right part shows back. Generators were removed from 4280/E-81 for shipment to a new owner. - Jet Propulsion Laboratory Edwards Facility, Test Stand D, Steam Generator Plant, Edwards Air Force Base, Boron, Kern County, CA

177

The Finer Details: Climate Modeling  

NASA Technical Reports Server (NTRS)

If you want to know whether you will need sunscreen or an umbrella for tomorrow's picnic, you can simply read the local weather report. However, if you are calculating the impact of gas combustion on global temperatures, or anticipating next year's rainfall levels to set water conservation policy, you must conduct a more comprehensive investigation. Such complex matters require long-range modeling techniques that predict broad trends in climate development rather than day-to-day details. Climate models are built from equations that calculate the progression of weather-related conditions over time. Based on the laws of physics, climate model equations have been developed to predict a number of environmental factors, for example: 1. Amount of solar radiation that hits the Earth. 2. Varying proportions of gases that make up the air. 3. Temperature at the Earth's surface. 4. Circulation of ocean and wind currents. 5. Development of cloud cover. Numerical modeling of the climate can improve our understanding of both the past and, the future. A model can confirm the accuracy of environmental measurements taken. in, the past and can even fill in gaps in those records. In addition, by quantifying the relationship between different aspects of climate, scientists can estimate how a future change in one aspect may alter the rest of the world. For example, could an increase in the temperature of the Pacific Ocean somehow set off a drought on the other side of the world? A computer simulation could lead to an answer for this and other questions. Quantifying the chaotic, nonlinear activities that shape our climate is no easy matter. You cannot run these simulations on your desktop computer and expect results by the time you have finished checking your morning e-mail. Efficient and accurate climate modeling requires powerful computers that can process billions of mathematical calculations in a single second. The NCCS exists to provide this degree of vast computing capability.

2000-01-01

178

Reconstruction filters and contrast detail curves in CT  

NASA Astrophysics Data System (ADS)

In this study, we investigated the effect of CT reconstruction filters in abdominal CT images of a male anthropomorphic phantom. A GE Light Speed CT 4-slice scanner was used to scan the abdomen of an adult Rando phantom. Cross sectional images of the phantom were reconstructed using four reconstruction filters: (1) soft tissue with the lowest noise; (2) detail (relative noise 1.7); (3) bone (relative noise 4.5); and (4) edge (relative noise 7.7). A two Alternate Forced Choice (AFC) experimental paradigm was used to estimate the intensity needed to achieve 92% correct (i.e., I 92%). Four observers measured detection performance for five lesions with size ranging from 2.5 to 12.5 mm for each of these four reconstruction filters. Contrast detail curves obtained in images of an anthropomorphic phantom were not straight lines, but best fitted to a second order polynomial. Results from four readers show similar trends with modest inter-observer differences with the measured coefficient of variation of the absolute performance levels of ~22%. All reconstruction filters had similar shaped contrast detail curves except for smallest details where the frequency response of filters differed most significantly. Increasing the noise level always reduced detection performance, and a doubling of image noise resulted in an average drop in detection performance of ~20%. The key findings of this study are that (a) the Rose model can provide reasonable predictions as to how changes in lesion size affect observer detection; (b) the shape of CT contrast detail curves is affected only very slightly with reconstruction filter; (c) changes in reconstruction filter noise can predict qualitative changes in observer detection performance, but are poor direct predictors of the quantitative changes of imaging performance.

Huda, W.; Ogden, K. M.; Samei, E.; Scalzetti, E. M.; Lavallee, R. L.; Roskopf, M. L.; Groat, G. E.

2008-03-01

179

Tapping the Power of Place  

ERIC Educational Resources Information Center

In American popular culture, the word "rural" invokes images of sunny farms and little red school-houses--while "urban" means drugs, poverty, and crime. But rural schools face many of the same challenges as their urban counterparts. The problems of rural schools are often invisible to the public and policy makers. The solutions may be found in the…

Lockette, Tim

2010-01-01

180

Tapping the Power of Place  

ERIC Educational Resources Information Center

In American popular culture, the word "rural" invokes images of sunny farms and little red schoolhouses--while "urban" means drugs, poverty, and crime. But those who know the reality of both worlds will say that rural schools face many of the same challenges as their urban counterparts. The problems of rural schools are often invisible to the…

Lockette, Tim

2010-01-01

181

Mapping Indigenous Depth of Place  

ERIC Educational Resources Information Center

Indigenous communities have successfully used Western geospatial technologies (GT) (for example, digital maps, satellite images, geographic information systems (GIS), and global positioning systems (GPS)) since the 1970s to protect tribal resources, document territorial sovereignty, create tribal utility databases, and manage watersheds. The use…

Pearce, Margaret Wickens; Louis, Renee Pualani

2008-01-01

182

Effects of Detail in Wireless Network Simulation  

Microsoft Academic Search

Experience with wired networks has provides guidance about what level of detail is appropriate for simulation- based protocol studies. Wireless simulations raise many new questions about approriate levels of detail in sim- ulation models for radio propagation and energy con- sumption. This paper describes the trade-offs in more detailed or abstract simulation models. We evaluate the effects of detail in

Nirupama Bulusu; Jeremy Elson; Deborah Estrin; Ramesh Govindan; John Heidemann; Chalermek Intanagonwiwat; Nader Salehi; Kun-chan Lan; Ya Xu; Wei Ye

2001-01-01

183

Our Place in Our Galaxy  

NSDL National Science Digital Library

In this fun and simple hands-on astronomy activity, learners construct a model of our place in the Milky Way Galaxy and the distribution of stars, with a quarter and some birdseed. This is a great introduction to the distances of objects in the universe. This activity was designed for use with sky-viewing telescopes but can be adapted to many venues. The PDF contains step-by-step instructions, photos, presentation tips, background information, and ready-to-print activity handouts.

Pacific, Astronomical S.

2008-01-01

184

The Place of Staff Morale in Educational Marketing  

ERIC Educational Resources Information Center

This study examined the current place of staff morale in the educational marketing of one high school in the northwestern United States. It also looked at ways in which staff morale could be improved to ensure a positive image of the school in the community. Research was conducted by emailing questionnaires on issues relating to staff morale to…

Zengaro, Franco

2005-01-01

185

Software For Drawing Design Details Concurrently  

NASA Technical Reports Server (NTRS)

Software system containing five computer-aided-design programs enables more than one designer to work on same part or assembly at same time. Reduces time necessary to produce design by implementing concept of parallel or concurrent detailing, in which all detail drawings documenting three-dimensional model of part or assembly produced simultaneously, rather than sequentially. Keeps various detail drawings consistent with each other and with overall design by distributing changes in each detail to all other affected details.

Crosby, Dewey C., III

1990-01-01

186

Detail perception after scene changes in television image presentations  

Microsoft Academic Search

Coding methods for television signals have been proposed which would rely on the frame-to-frame correlation. But it was to be expected that the instrumentation and efficiency of such methods would be severely impeded by the large influx of new samples caused by scene changes. If, however, the spatial resolution of the new scene could be temporarily reduced, the scene change

A. J. SEYLER; Z. L. BUDRIKIS

1965-01-01

187

Categorization of Indoor Places Using the Kinect Sensor  

PubMed Central

The categorization of places in indoor environments is an important capability for service robots working and interacting with humans. In this paper we present a method to categorize different areas in indoor environments using a mobile robot equipped with a Kinect camera. Our approach transforms depth and grey scale images taken at each place into histograms of local binary patterns (LBPs) whose dimensionality is further reduced following a uniform criterion. The histograms are then combined into a single feature vector which is categorized using a supervised method. In this work we compare the performance of support vector machines and random forests as supervised classifiers. Finally, we apply our technique to distinguish five different place categories: corridors, laboratories, offices, kitchens, and study rooms. Experimental results show that we can categorize these places with high accuracy using our approach. PMID:22778665

Mozos, Oscar Martinez; Mizutani, Hitoshi; Kurazume, Ryo; Hasegawa, Tsutomu

2012-01-01

188

Teachers' Place: Monterey Bay Aquarium  

NSDL National Science Digital Library

The Monterey Bay Aquarium has long had an ambitious outreach mission. As a result, its Teachers' Place is a fine resource for educators around the world. On the homepage, visitors will find sections such as Teacher Programs, Field Trips, and Classroom Resources. In the Classroom Resources area, visitors can take advantage of lesson plans and interactive media features that include Rocky Shore, Kelp Forest, Sea Otters, and Mission to the Deep. The Games & Interactives area includes downloadable posters, fact cards, and a virtual dive into Monterey Canyon that provides visitors with a truly immersive experience, minus the actual water, of course. This same section also has some pretty great tunes, such as "Hold On or Go With the Flow," which is a paean to surviving the rough and tumble world of the rocky shore.

189

33 CFR 116.20 - Detailed investigation.  

Code of Federal Regulations, 2010 CFR

... 2010-07-01 false Detailed investigation. 116.20 Section 116.20 Navigation and Navigable Waters COAST GUARD... ALTERATION OF UNREASONABLY OBSTRUCTIVE BRIDGES § 116.20 Detailed investigation. (a) When...

2010-07-01

190

Imaging Biomarkers or Biomarker Imaging?  

PubMed Central

Since biomarker imaging is traditionally understood as imaging of molecular probes, we highly recommend to avoid any confusion with the previously defined term “imaging biomarkers” and, therefore, only use “molecular probe imaging (MPI)” in that context. Molecular probes (MPs) comprise all kinds of molecules administered to an organism which inherently carry a signalling moiety. This review highlights the basic concepts and differences of molecular probe imaging using specific biomarkers. In particular, PET radiopharmaceuticals are discussed in more detail. Specific radiochemical and radiopharmacological aspects as well as some legal issues are presented. PMID:24967536

Mitterhauser, Markus; Wadsak, Wolfgang

2014-01-01

191

Three-dimensional place and route for FPGAs  

Microsoft Academic Search

We present timing-driven partitioning and simulated-annealing (SA)-based placement algorithms together with a detailed routing tool for three-dimensional (3-D) field-programmable gate array (FPGA) integration. The circuit is first divided into layers with a limited number of interlayer vias, and then placed on individual layers, while minimizing the delay of critical paths. We use our tool as a platform to explore the

Cristinel Ababei; Hushrav Mogal; Kia Bazargan

2006-01-01

192

Detail view of the interior of the flight deck looking ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the interior of the flight deck looking forward showing the overhead control panels. Note that the flight deck windows have protective covers over them in this view. This images can be digitally stitched with image HAER No. TX-116-A-19 to expand the view to include the Commander and Pilot positions during ascent and reentry and landing. This view was taken in the Orbiter Processing Facility at the Kennedy Space Center. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

193

Detail Extraction from Electron Backscatter Diffraction Patterns  

NASA Astrophysics Data System (ADS)

Cross-correlation based analysis of electron backscatter diffraction (EBSD) patterns and the use of simulated reference patterns has opened up entirely new avenues of insight into local lattice properties within EBSD scans. The benefits of accessing new levels of orientation resolution and multiple types of previously inaccessible data measures are accompanied with new challenges in characterizing microscope geometry and other error previously ignored in EBSD systems. The foremost of these challenges, when using simulated patterns in high resolution EBSD (HR-EBSD), is the determination of pattern center (the location on the sample from which the EBSD pattern originated) with sufficient accuracy to avoid the introduction of phantom lattice rotations and elastic strain into these highly sensitive measures. This dissertation demonstrates how to greatly improve pattern center determination. It also presents a method for the extraction of grain boundary plane information from single two-dimensional surface scans. These are accomplished through the use of previously un-accessed detail within EBSD images, coupled with physical models of the backscattering phenomena. A software algorithm is detailed and applied for the determination of pattern center with an accuracy of ˜0.03% of the phosphor screen width, or ˜10?m. This resolution makes it possible to apply a simulated pattern method (developed at BYU) in HR-EBSD, with several important benefits over the original HR-EBSD approach developed by Angus Wilkinson. Experimental work is done on epitaxially-grown silicon and germanium in order to gauge the precision of HR-EBSD with simulated reference patterns using the new pattern center calibration approach. It is found that strain resolution with a calibrated pattern center and simulated reference patterns can be as low as 7x10-4. Finally, Monte Carlo-based models of the electron interaction volume are used in conjunction with pattern-mixing-strength curves of line scans crossing grain boundaries in order to recover 3D grain boundary plane information. Validation of the approach is done using 3D serial scan data and coherent twin boundaries in tantalum and copper. The proposed method for recovery of grain boundary plane orientation exhibits an average error of 3 degrees.

Basinger, Jay

194

The astrophysics of crowded places.  

PubMed

Today the Sun is in a relatively uncrowded place. The distance between it and the nearest other star is relatively large (about 200,000 times the Earth-Sun distance!). This is beneficial to life on Earth; a close encounter with another star is extremely unlikely. Such encounters would either remove the Earth from its orbit around the Sun or leave it on an eccentric orbit similar to a comet's. But the Sun was not formed in isolation. It was born within a more-crowded cluster of perhaps a few hundred stars. As the surrounding gas evaporated away, the cluster itself evaporated too, dispersing its stars into the Galaxy. Virtually all stars in the Galaxy share this history, and here I will describe the role of 'clusterness' in a star's life. Stars are often formed in larger stellar clusters (known as open and globular clusters), some of which are still around today. I will focus on stars in globular clusters and describe how the interactions between stars in these clusters may explain the zoo of stellar exotica which have recently been observed with instruments such as the Hubble Space Telescope and the X-ray telescopes XMM-Newton and Chandra. In recent years, myriad planets orbiting stars other than the Sun--the so-called 'extrasolar' planets--have been discovered. I will describe how a crowded environment will affect such planetary systems and may in fact explain some of their mysterious properties. PMID:12626265

Davies, Melvyn

2002-12-15

195

Detail view of the port side of the payload bay ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the port side of the payload bay of the Orbiter Discovery. This view shows Remote Manipulator System, Canadarm, sensors in the center of the image and a close-up view of a small segment of the orbiter's radiator panel. This photograph was taken in the Orbiter Processing Facility at the Kennedy Space Center. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

196

Detail view of the underside of a elevon on the ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the underside of a elevon on the port side wing of the Orbiter Discovery. Note the wear and replacement patterns of the High-temperature Reusable Surface Insulation tiles. This image was taken inside of the Orbiter Processing Facility at Kennedy Space Center. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

197

Grounding for a computational model of place  

E-print Network

Places are spatial locations that have been given meaning by human experience. The sense of a place is it's support for experiences and the emotional responses associated with them. This sense provides direction and focus ...

Hockenberry, Matthew Curtis

2006-01-01

198

Secondary Lesson Plan: Place and Relative Location.  

ERIC Educational Resources Information Center

Presents a secondary education geography lesson plan for teaching the theme of place and relative location. Provides samples of student materials. Using Japan as an example, shows how place and relative location can be used to study a country. (KO)

Crawford, John

1989-01-01

199

Monte Carlo methods beyond detailed balance  

NASA Astrophysics Data System (ADS)

Monte Carlo algorithms are nearly always based on the concept of detailed balance and ergodicity. In this paper we focus on algorithms that do not satisfy detailed balance. We introduce a general method for designing non-detailed balance algorithms, starting from a conventional algorithm satisfying detailed balance. This approach is first applied to a very simple model, which shows the basic viability of the method. Then we apply it to the Ising model, where we find that the method is an improvement compared to the standard Metropolis algorithm, be it with a modest gain of a factor 2.3.

Schram, Raoul D.; Barkema, Gerard T.

2015-01-01

200

Literacy, Place and the Digital World  

ERIC Educational Resources Information Center

Observing that place may be understood in a range of sometimes conflicting ways, the paper picks up on recent work within literacy studies on notions of place-making and locational disadvantage to argue for increasingly sophisticated and reflexive uses of place in the field, as a counterpoint to both increasing educational standardisation and…

Green, Bill

2012-01-01

201

Anthropological Studies of Native American Place Names.  

ERIC Educational Resources Information Center

Traces development of Native American place name studies from Boas (1880s) to the present. Argues that place names convey information about physical environments but also reveal how people perceive, conceptualize, and utilize their environment. Suggests the utility of place names as a framework for cultural analysis and describes recent…

Thornton, Thomas F.

1997-01-01

202

Using PlacesOnline in Instructional Activities  

ERIC Educational Resources Information Center

PlacesOnLine.org is a Web portal that provides easy access to high quality Web sites that focus on places from around the world. It is intended for use by a wide range of people, including professional geographers, teachers and students at all levels, and the general public. This article explores the potential uses of PlacesOnLine as an…

Longan, Michael W.; Owusu, Francis; Roseman, Curtis C.

2008-01-01

203

Sense of Place in Environmental Education  

ERIC Educational Resources Information Center

Although environmental education research has embraced the idea of sense of place, it has rarely taken into account environmental psychology-based sense of place literature whose theory and empirical studies can enhance related studies in the education context. This article contributes to research on sense of place in environmental education from…

Kudryavtsev, Alex; Stedman, Richard C.; Krasny, Marianne E.

2012-01-01

204

The four Rs of place branding  

Microsoft Academic Search

The purpose of this paper is to discuss the concept of ownership in relation to place branding and to establish a basis upon which the representation of a place as a brand can be developed. We suggest that a bottom-up approach based on the paradigm of co-creation should be taken to developing a place brand and that brand ownership is

Robert Aitken; Adriana Campelo

2011-01-01

205

Details of Layers in Victoria Crater's Cape St. Vincent  

NASA Technical Reports Server (NTRS)

NASA's Mars Exploration Rover Opportunity rover spent about 300 sols (Martian days) during 2006 and 2007 traversing the rim of Victoria Crater. Besides looking for a good place to enter the crater, the rover obtained images of rock outcrops exposed at several cliffs along the way.

The cliff in this image from Opportunity's panoramic camera (Pancam) is informally named Cape St. Vincent. It is a promontory approximately 12 meters (39 feet) tall on the northern rim of Victoria crater, near the farthest point along the rover's traverse around the rim. Layers seen in Cape St. Vincent have proven to be among the best examples of meter scale cross-bedding observed on Mars to date. Cross-bedding is a geologic term for rock layers which are inclined relative to the horizontal and which are indicative of ancient sand dune deposits. In order to get a better look at these outcrops, Pancam 'super-resolution' imaging techniques were utilized. Super-resolution is a type of imaging mode which acquires many pictures of the same target to reconstruct a digital image at a higher resolution than is native to the camera. These super-resolution images have allowed scientists to discern that the rocks at Victoria Crater once represented a large dune field, not unlike the Sahara desert on Earth, and that this dune field migrated with an ancient wind flowing from the north to the south across the region. Other rover chemical and mineral measurements have shown that many of the ancient sand dunes studied in Meridiani Planum were modified by surface and subsurface liquid water long ago.

This is a Mars Exploration Rover Opportunity Panoramic Camera image acquired on sol 1167 (May 7, 2007), and was constructed from a mathematical combination of 16 different blue filter (480 nm) images.

2007-01-01

206

Architecture and urbanism in Henri IV's Paris : the Place Royale, Place Dauphine, and Hôpital St. Louis  

E-print Network

This dissertation concerns the extensive building program which Henri IV undertook in Paris from 1600 to 1610. Focusing on the place Royale (now called the place des Vosges) , the place Dauphine, rue Dauphine, and Pont ...

Ballon, Hilary Meg

1985-01-01

207

Hi-C: A Detailed View of the Sun - Duration: 0:11.  

NASA Video Gallery

This 10-second movie includes imagery collected from the Atmospheric Imaging Assembly instrument flying on NASA's Solar Dynamics Observatory and Hi-C. Hi-Câ??s resolution is five times more detaile...

208

24. 'HANGAR SHEDS ELEVATIONS DETAILS; ARCHITECTURAL PLANS ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

24. 'HANGAR SHEDS - ELEVATIONS - DETAILS; ARCHITECTURAL PLANS - PLANT AREA; MODIFICATION CENTER NO. 1, DAGGETT, CALIFORNIA.' Partial elevations, and details of sliding doors and ventilator flaps, as built. Contract no. W509 Eng. 2743; File no. 555/81, revision B, dated April 6, 1943. No sheet number. - Barstow-Daggett Airport, Hangar Shed No. 4, 39500 National Trails Highway, Daggett, San Bernardino County, CA

209

Contact details: School of Architecture, BCU  

E-print Network

Contact details: School of Architecture, BCU Dr. Richard Coles, Co investigator Richard is to be sustainable in the widest sense. Contact details: Centre for Urban and Regional Studies, U0B Dr. Austin Barber, Co investigator A.Barber@bham.ac.uk Ms. Carina Weingaertner, Research Fellow C

Birmingham, University of

210

Horava-Lifshitz gravity with detailed balance  

E-print Network

Horava-Lifshitz gravity with "detailed balance" but without the projectability assumption is discussed. It is shown that detailed balance is quite efficient in limiting the proliferation of couplings in Horava-Lifshitz gravity, and that its implementation without the projectability assumption leads to a theory with sensible dynamics. However, the (bare) cosmological constant is restricted to be large and negative.

Daniele Vernieri; Thomas P. Sotiriou

2012-12-18

211

Research Facility Climate change and environmental stresses placed by humans on plants,  

E-print Network

Research Facility Climate change and environmental stresses placed by humans on plants, animals: Biomes, Earth Science, Imaging, Insects, Microbiology, Plants and Algae, Plant Productivity and Transgenic Plants · Will lead to significant contributions in the areas of sustainable agriculture

Denham, Graham

212

Microwave Imaging of Cotton Bales  

PubMed Central

Modern moisture restoration systems are increasingly capable of adding water to cotton bales. However, research has identified large variations in internal moisture within bales that are not readily monitored by current systems. While microwave moisture sensing systems can measure average bale moisture, this can be deceptive where water is unevenly distributed. In some cases, localized internal moisture levels exceed 7.5%, the upper safe limit for cotton bale storage, as determined by the USDA, as above this level, bales degrade and lose value. A high proportion of stored bales containing excess moisture have been discovered throughout the US in increasing numbers over the past several seasons, making the detection and prevention of this occurrence a critical goal. Previous research by the authors resulted in the development of microwave moisture-sensing technology. The current study examines an extension to this technology to allow for detailed cotton bale moisture imaging. The new technique incorporates a narrow beam imaging antenna coupled to a tomographic imaging algorithm. The imaging technique was able to resolve small (< 1 cm) high-permittivity structures against a low permittivity background. Moreover, the system was able to identify structures of known permittivity with high accuracy (coefficient of determination (r2) > 0.99). In preliminary testing on a wet commercial UD bale, the technique was able to accurately image and resolve the location of the pre-placed internal wet layer.

Pelletier, Mathew G.; Barnes, Edward M.

2008-01-01

213

25. 'HANGAR SHEDS TRUSSES DETAILS; ARCHITECTURAL PLANS ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

25. 'HANGAR SHEDS - TRUSSES - DETAILS; ARCHITECTURAL PLANS - PLANT AREA; MODIFICATION CENTER NO. 1, DAGGETT, CALIFORNIA.' Sections and details of trusses, ironwork, and joints, as modified to show ridge joint detail. As built. This blueline also shows the fire suppression system, added in orange pencil for 'Project 13: Bldgs. T-30, T-50, T-70, T-90' at a later, unspecified date. Contract no. W509 Eng. 2743; File no. 555/84, revision B, dated August 24, 1942. No sheet number. - Barstow-Daggett Airport, Hangar Shed No. 4, 39500 National Trails Highway, Daggett, San Bernardino County, CA

214

Using Place Value Cards Problem: Use place value cards to evaluate 456seven + 44seven.  

E-print Network

Using Place Value Cards ============== Problem: Use place value cards to evaluate 456seven + 44seven. Solution: We begin with two place value cards. The first card represents 456seven and the second represents 44seven. Since we are adding, we will need to combine the poker chips onto one place value card

Lee, Carl

215

Sense of Place in the Practice and Assessment of Place-Based Science Teaching  

ERIC Educational Resources Information Center

We teach earth, ecological, and environmental sciences in and about "places" imbued with meaning by human experience. Scientific understanding is but one of the many types of meanings that can accrue to a given place. People develop emotional attachments to meaningful places. The "sense of place," encompassing the meanings and attachments that…

Semken, Steven; Freeman, Carol Butler

2008-01-01

216

Global detailed geoid computation and model analysis  

NASA Technical Reports Server (NTRS)

Comparisons and analyses were carried out through the use of detailed gravimetric geoids which we have computed by combining models with a set of 26,000 1 deg x 1 deg mean free air gravity anomalies. The accuracy of the detailed gravimetric geoid computed using the most recent Goddard earth model (GEM-6) in conjunction with the set of 1 deg x 1 deg mean free air gravity anomalies is assessed at + or - 2 meters on the continents of North America, Europe, and Australia, 2 to 5 meters in the Northeast Pacific and North Atlantic areas, and 5 to 10 meters in other areas where surface gravity data are sparse. The R.M.S. differences between this detailed geoid and the detailed geoids computed using the other satellite gravity fields in conjuction with same set of surface data range from 3 to 7 meters.

Marsh, J. G.; Vincent, S.

1974-01-01

217

Principle of Detailed Balance in Kinetics  

ERIC Educational Resources Information Center

The effects of the detailed balance on chemical kinetics on the chemical monomolecular triangle reactions are illustrated. A simple experiment that illustrates oscillations, limit cycles, bifurcations and noise are illustrated along with the oscillating reactions.

Alberty, Robert A.

2004-01-01

218

The WorkPlace distributed processing environment  

NASA Technical Reports Server (NTRS)

Real time control problems require robust, high performance solutions. Distributed computing can offer high performance through parallelism and robustness through redundancy. Unfortunately, implementing distributed systems with these characteristics places a significant burden on the applications programmers. Goddard Code 522 has developed WorkPlace to alleviate this burden. WorkPlace is a small, portable, embeddable network interface which automates message routing, failure detection, and re-configuration in response to failures in distributed systems. This paper describes the design and use of WorkPlace, and its application in the construction of a distributed blackboard system.

Ames, Troy; Henderson, Scott

1993-01-01

219

Detail preserving exposure fusion for a dual sensor camera  

NASA Astrophysics Data System (ADS)

Dual sensor cameras are widely used to capture multi-exposure image of high dynamic range scene without ghost effect. The local details and luminance contrast can not be achieved well at the same time by conventional exposure fusion. A novel technique of exposure fusion is proposed to balance the local details and global luminance adaptively for dual sensor camera. Such fusion weight map is calculated by a new down-up-sampling method. And then, a guided filter is employed to refine the weight map and exposure fusion is realized using pixel by pixel approach. Finally, multiple experiments are carried out and six common exposure fusion algorithms are compared to verify the proposed exposure fusion technique. The experimental results show that the proposed method performs excellently and robustly with highest spatial frequency and visual fidelity.

Chen, Kuo; Chen, Yueting; Feng, Huajun; Xu, Zhihai

2014-11-01

220

4. TROJAN MILL, DETAIL OF CRUDE ORE BINS FROM NORTH, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. TROJAN MILL, DETAIL OF CRUDE ORE BINS FROM NORTH, c. 1912. SHOWS TIMBER FRAMING UNDER CONSTRUCTION FOR EAST AND WEST CRUDE ORE BINS AT PREVIOUS LOCATION OF CRUSHER HOUSE, AND SNOW SHED PRESENT OVER SOUTH CRUDE ORE BIN WITH PHASE CHANGE IN SNOW SHED CONSTRUCTION INDICATED AT EAST END OF EAST CRUDE ORE BIN. THIS PHOTOGRAPH IS THE FIRST IMAGE OF THE MACHINE SHOP, UPPER LEFT CORNER. CREDIT JW. - Bald Mountain Gold Mill, Nevada Gulch at head of False Bottom Creek, Lead, Lawrence County, SD

221

The Greater India beneath Tibet: A detailed new seismic mapping  

NASA Astrophysics Data System (ADS)

The Greater India is a continent that existed before the India-Asia collision and comprised today's Indian subcontinent and its extension to the north, by now consumed in the collision. The size, shape, and evolution of the Greater India are a matter of a heated debate, from its place in the make-up of Gondwana to its rapid northward drift and evolution following the break-up of the supercontinent and to its eventual collision with Eurasia. How the India-Asia collision has been accommodated (how much of the continental Indian lithosphere has been consumed and what happened to it) is an important unresolved problem in itself, the proposed solutions including: underthrusting of India beneath Tibet; northward subduction of India; viscous thickening of the Indian and Asian lithospheres beneath Tibet; viscous thickening followed by convective removal; lateral extrusion of chunks of Greater India eastwards; slicing and sinking of the Greater India's lithosphere beneath the Himalayas. Body-wave seismic tomography shows the remnants of the subducted lithosphere of the ancient Tethys Ocean, now in the lower mantle, and the more recently subducted lithosphere of the Indian Plate around the transition-zone depths. In the lithosphere-asthenosphere depth range, however, the properties and even the presence of Indian lithosphere in the upper mantle beneath Tibet are debated. Whereas surface-wave tomographic models typically show a high-velocity anomaly beneath much of Tibet at around 200 km depth, many body-wave models do not show high-velocity anomalies under most of the plateau, prompting very different interpretations. Here we determine the morphology of the Indian lithosphere beneath Tibet using a combination of large-scale waveform tomography (based on a new, unprecedentedly large global dataset) and of surface-wave array analysis in Tibet. The Greater Indian lithosphere is present (underthrusting or subducting) beneath much of Tibet. There are marked differences in the properties of the Greater Indian lithosphere and in the mechanism of its descent beneath different parts of the plateau. In the west, cratonic Indian lithosphere underthrusts the Tibetan crust and collides with the Tarim Craton to the north of it. In the central part of the plateau, Indian lithosphere underthrusts Tibet form the Himalayas up to the Bangong-Nujiang Suture and then, further north, subducts at a relatively steep angle. Indian lithosphere now under the east-central Himalayas is not cratonic (not as thick and cold as in the west). Beneath eastern Tibet, the Indian lithosphere has subducted, at a shallow angle, hundreds of kilometers northwards to under the Qiangtang and Songpan-Ganzi Terranes. The detailed new seismic images provide new constraints on the size of the Greater India continent and on lateral variations in the properties of its lithosphere. The size and shape of the Greater India as evidenced by the seismic data are consistent with the recent plate-tectonic models in which the India-Asia hard continental collision commences more recently than previously thought. References Agius, M. R., S. Lebedev. Tibetan and Indian lithospheres in the upper mantle beneath Tibet: Evidence from broadband surface-wave dispersion. Geochem. Geophys. Geosyst. 14, doi:10.1002/ggge.20274, 2013. Schaeffer, A. J., S. Lebedev. Global shear-speed structure of the upper mantle and transition zone. Geophys. J. Int. 194, 417-449, 2013. Van Hinsbergen, D. J. J., et al., Greater India Basin hypothesis and a two-stage Cenozoic collision between India and Asia., Proc. Natl. Acad. Sci. USA 109, 7659-64, 2012. Zahirovic, S., et al., Insights on the kinematics of the India-Eurasia collision from global geodynamic models, Geochem. Geophys. Geosyst. 13, doi:10.1029/2011GC003883, 2012.

Lebedev, Sergei; Schaeffer, Andrew; Agius, Matthew

2014-05-01

222

The Consumer's World: Place as Context  

Microsoft Academic Search

The mass-produced products we consume embody elements from the realms of nature, meaning, and social relations. These realms are difficult to integrate on a theoretical plane, but as consumers of these products, we draw these elements together in everyday life and transform them to create places as contexts. These places, which are the basis of our built environments, are also

Robert D. Sack

1988-01-01

223

Can I Put You in Your Place?  

NSDL National Science Digital Library

"Students play a game that allows them to place number cards in an order to make the least three digit number possible using place value. Students compare these numbers with a partner to see who has the least three digit number." (from Beacon Learning Center)

Center, Beacon L.

2009-03-18

224

Urban place marketing and retail agglomeration customers  

Microsoft Academic Search

Through identifying the attributes of a place that have an influence on the patronage behaviour of urban retail customers, this paper presents a conceptual model that proposes direct and indirect antecedents regarding the different retail-related dimensions associated with urban place attractiveness. An empirical study was conducted whereby the model was tested by surveying approximately 500 actual customers at the time

Christoph Teller; Jonathan R. Elms

2010-01-01

225

Urban place marketing and retail agglomeration customers  

Microsoft Academic Search

Through identifying the attributes of a place that have an influence on the patronage behaviour of urban retail customers, this paper presents a conceptual model that proposes direct and indirect antecedents regarding the different retail-related dimensions associated with urban place attractiveness. An empirical study was conducted whereby the model was tested by surveying approximately 500 actual customers at the time

Christoph Teller; Jonathan R. Elms

2012-01-01

226

Value of Construction Put in Place  

NSDL National Science Digital Library

This newly released 21-page report from the Census Bureau estimates that, in November 1999, an annual rate of construction of $715.1 billion was put in place. In contrast, the November 1992 annual rate of construction put in place was $556.4 billion.

227

Mental Imagery of Faces and Places Activates Corresponding Stimulus-Specific Brain  

E-print Network

Mental Imagery of Faces and Places Activates Corresponding Stimulus-Specific Brain Regions K. M. O happens in the brain when you conjure up a mental image in your mind's eye? We tested whether the particular regions of extrastriate cortex activated during mental imagery depend on the content of the image

Kanwisher, Nancy

228

Detailed balance methods for chemical potential determination  

SciTech Connect

In earlier work [J. Chem. Phys. {bold 100}, 2154 (1994)] we presented a new method of determining the chemical potential in Monte Carlo or molecular dynamics simulations which makes use of a detailed balance method (DBM). In the present paper we present results of a careful study of this method applied to liquid palladium down to and below the zero-pressure melting temperature. A new surface detailed balance method (SDBM) is introduced, which is much more efficient near and below the melting temperature where the original method becomes too inefficient to determine an accurate value of the chemical potential. We also present results where the new surface detailed balance method is used to determine the chemical potential of the solid phase at a number of different temperatures. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

Fay, P.J. [Office of the Vice-Provost of Research, University of South Carolina, Columbia, South Carolina 29208 (United States)] [Office of the Vice-Provost of Research, University of South Carolina, Columbia, South Carolina 29208 (United States); Ray, J.R. [Department of Physics and Astronomy, Kinard Laboratory of Physics, Clemson University, Clemson, South Carolina 29634-1911 (United States)] [Department of Physics and Astronomy, Kinard Laboratory of Physics, Clemson University, Clemson, South Carolina 29634-1911 (United States); Wolf, R.J. [Savannah River Technology Center, Westinghouse Savannah River Company, Aiken, South Carolina 29808 (United States)] [Savannah River Technology Center, Westinghouse Savannah River Company, Aiken, South Carolina 29808 (United States)

1995-11-01

229

Triton - Detail of Dark and Light Material  

NASA Technical Reports Server (NTRS)

Voyager 2 acquired this black and white image of Triton, Neptune's largest satellite, during the night of Aug. 24-25, 1989. Triton's limb cuts obliquely across the middle of the image. The field of view is about 1,000 km (600 miles) across. Three irregular dark areas, surrounded by brighter material, dominate the image. Low-lying material with intermediate albedo occupies the central area, and fresh craters occur along the right margin. Sub-parallel alignment of linear patches of dark material shown in the lower and left part of the image suggests that the patches are structurally controlled. The Voyager Mission is conducted by JPL for NASA's Office of Space Science and Applications.

1989-01-01

230

Echo states for detailed fluctuation theorems  

NASA Astrophysics Data System (ADS)

Detailed fluctuation theorems are statements about the probability distribution for the stochastic entropy production along a trajectory. It involves the consideration of a suitably transformed dynamics, such as the time reversed, the adjoint, or a combination of these. We identify specific, typically unique, initial conditions, called echo states, for which the final probability distribution of the transformed dynamics reproduces the initial distribution. In this case the detailed fluctuation theorems relate the stochastic entropy production of the direct process to that of the transformed one. We illustrate our results by an explicit analytical calculation and numerical simulations for a modulated two-state quantum dot.

Becker, T.; Willaert, T.; Cleuren, B.; Van den Broeck, C.

2015-01-01

231

EarthShots: Satellite Images of Environmental Change  

NSDL National Science Digital Library

EarthShots is an e-book of images (1972-present) showing recent environmental events through remotely sensed images while also introducing remote sensing techniques. Place-specific case studies offer before-and-after satellite imagery as well as descriptive text. Examples of case studies include agriculture along the Nile River Delta, urban development as it impacts the hydrology of the Imperial Valley in California, desertification in Southern Mauritania, the disastrous effects of the Mount St. Helens eruption in Washington, and glacial activity in Hubbard Glacier, Alaska. A world map allows users to access these instances of environmental change by geographic area. Information on remote sensing technology and an overview of the site is provided by a Garden City, Kansas case study. Each set of images and text are accompanied by a political/topographic map of the area, detailed information pertaining to the source of the satellite images and maps, and relevant references.

2001-01-12

232

A Detailed Spectroscopic Analysis of The EQ Pegasi System  

NASA Astrophysics Data System (ADS)

EQ Pegasi (GJ 896, HIP 116132 ) is a resolved binary system comprised of mid-M dwarfs at a distance of only 6.2 pc. The system has been studied extensively over a broad range of wavelengths from the X-ray to the radio. These observations reveal both components are variable, flare, and exhibit high levels of magnetic activity. The pair were recently proposed as members of a nearby young kinematic association on the basis of consistent Galactic kinematics, strong X-ray emission, and color-magnitude diagram position. Thus, they may be the closest pre-main-sequence system to the Sun. Here we present a detailed analysis of EQ Peg A and B using medium resolution spectra covering ~0.5-2.5 microns. We investigate spectral types, chromospheric activity indicators, lithium depletion, and gravity sensitive alkali lines and molecular bands to characterize the system and place constraints on its age.

Schlieder, Joshua E.; Murphy, Simon; Riedel, Adric R.

2015-01-01

233

Gift Aid Declaration Form Your details: Name:________________________________________________________________  

E-print Network

Gift Aid Declaration Form Your details: Name Phone:___________________________Mobile:__________________________ Gift Aid Declaration: If you are a UK taxpayer, every £1 you give with Gift Aid is worth £1.25 to the College, at no extra cost to you. All you

Goldschmidt, Christina

234

Third Sound Amplification and Detailed Balance  

SciTech Connect

Condensation of atoms from the vapor into a third sound resonance is expected to be capable of acoustic amplification. This results from normal to superfluid conversion that coherently accommodates atoms into the third sound velocity field. Consideration of third sound in light of the equilibrium detailed balance between vapor particles and the superfluid film provides further evidence that acoustic amplification is attainable.

Eddinger, J. D.; Ellis, F. M. [Department of Physics, Wesleyan University, Middletown, CT 06459 (United States)

2006-09-07

235

Positive emotions enhance recall of peripheral details  

Microsoft Academic Search

Emotional arousal and negative affect enhance recall of central aspects of an event. However, the role of discrete emotions in selective memory processing is understudied. Undergraduates were asked to recall and rate autobiographical memories of eight emotional events. Details of each memory were rated as central or peripheral to the event. Significance of the event, vividness, reliving and other aspects

Jennifer M. Talarico; Dorthe Berntsen; David C. Rubin

2009-01-01

236

Additional reimbursement details are available on the  

E-print Network

Get up to $150 reimbursement for a qualified Weight Loss program! Whether you're trying to lose weightLearn More Additional reimbursement details are available on the Weight Loss Reimbursement Form: Save up to $150 on a Weight Loss program and Save up to $150 on the Fitness Reimbursement program 2 1

Huang, Jianyu

237

Normal responses to sexually anatomically detailed dolls  

Microsoft Academic Search

The behaviors and verbalizations of normal, preschool age boys and girls during interactions with sexually anatomically detailed (SAD) dolls were examined. A structured, nonsuggestive interview with each child was videotaped, and five behaviors and five verbalizations were coded for each of five phases of the interview. A two-way ANOVA (gender × phase) showed that during those phases when the dolls

Brenda Dawson; Allison R. Vaughan; William G. Wagner

1992-01-01

238

Contact Details Journeying Beyond Breast Cancer  

E-print Network

Home About Contact Details Facebook Search Journeying Beyond Breast Cancer making sense of the cancer experience Feeds: Posts Comments Cancer-fighting fountain pen May 20, 2009 by JBBC A research team be used both as a research tool in the development of next-generation cancer treatments

Espinosa, Horacio D.

239

Big Heads, Small Details and Autism  

ERIC Educational Resources Information Center

Autism is thought to be associated with a bias towards detail-focussed processing. While the cognitive basis remains controversial, one strong hypothesis is that there are high processing costs associated with changing from local into global processing. A possible neural mechanism underlying this processing style is abnormal neural connectivity;…

White, Sarah; O'Reilly, Helen; Frith, Uta

2009-01-01

240

Detailed Models of Piezoceramic Actuation of Beams  

Microsoft Academic Search

In this paper, techniques for modeling induced strain actuation of beam-like components of intelligent structures are developed. Two analytical models and one numer ical model describing the detailed mechanics of induced strain actuators bonded to and embedded in one-dimensional structures are presented. The models illustrate the exten sion, bending, and localized shearing deformations induced. The range of parameters for which

Eric H. Anderson

1990-01-01

241

Detailed requirements for robots in autism therapy  

Microsoft Academic Search

Robot-based autism therapy is a rapidly developing area of research, with a wide variety of robots being developed for use in clinical settings. Specific, detailed requirements for robots and user interfaces are needed to provide guidelines for the creation of robots that more effectively assist therapists in autism therapy. This paper enumerates a set of requirements for a clinical humanoid

Nicole Giullian; Daniel J. Ricks; John Alan Atherton; Mark B. Colton; Michael A. Goodrich; Bonnie Brinton

2010-01-01

242

Process Detail* 1. Reconcile Carrier Delivery  

E-print Network

Process Detail* 1. Reconcile Carrier Delivery 1. Count packages received, reconcile any differences and signer on "ERSO Incoming Delivery Log" 3. Separate packages by building. 4. Remove packing slip from "Purchase Order" tab 2. Fill in Customer Name, Final Destination, Purchasing Agent, and Delivery Log Name

California at Irvine, University of

243

Details Of Collision-Avoidance Study  

NASA Technical Reports Server (NTRS)

Report provides background information on and detailed description of study of pilots' use of traffic-alert and collision-avoidance system (TCAS II) in simulated flights. Described in article, "Evaluation of an Aircraft-Collision-Avoidance System" (ARC-12367). Plans, forms, training narratives, scripts, questionnaires, and other information compiled.

Chappell, Sheryl L.; Billings, Charles E.; Olsen, M. Christine; Scott, Barry C.; Tuttell, Robert J.; Kozon, Thomas E.

1990-01-01

244

45 CFR 1703.301 - Meeting place.  

Code of Federal Regulations, 2011 CFR

...1703.301 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL COMMISSION ON LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Conduct of Meetings § 1703.301 Meeting place....

2011-10-01

245

45 CFR 1703.301 - Meeting place.  

Code of Federal Regulations, 2010 CFR

...1703.301 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL COMMISSION ON LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Conduct of Meetings § 1703.301 Meeting place....

2010-10-01

246

Knowledge to Go Places Equine Reproduction Laboratory  

E-print Network

Knowledge to Go Places Equine Reproduction Laboratory College of Veterinary Medicine and Biomedical residency program in Equine Theriogenology (Reproduction) beginning July 1, 2015. A description of the program is attached. The residency incorporates the following: 1. Clinical reproduction in mares

247

45 CFR 1703.301 - Meeting place.  

... Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL COMMISSION ON LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Conduct of Meetings § 1703.301 Meeting place. Meetings will be...

2014-10-01

248

45 CFR 1703.301 - Meeting place.  

Code of Federal Regulations, 2013 CFR

... Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL COMMISSION ON LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Conduct of Meetings § 1703.301 Meeting place. Meetings will be...

2013-10-01

249

Intensifying the collective use of public place  

E-print Network

The premise of the thesis states that to intensify the collective use of public place there must exist a broad collective understanding of physical constituents that 'build' spatial relationships. These spatial understandings ...

Aldrich, Darrell E. (Darrell Eugene)

1994-01-01

250

Chemical Agents: Facts about Sheltering in Place  

MedlinePLUS

... Index Chemical Agents: Facts About Sheltering in Place Language: English Español (Spanish) Format: Select one PDF [99 KB] ... international organizations. Format: Select one PDF [99 KB] Language: English Español (Spanish) File Formats Help: How do I ...

251

Public places through the private eye  

E-print Network

The radical change in the pattern of everyday communication has corresponded with a rapid transformation of the character of public urban places and the way they are used. The urban network is no longer the primary space ...

Gáspár, Zsuzsanna, 1967-

1993-01-01

252

A Tie for Third Place: Teens Need Physical Spaces as well as Virtual Places  

ERIC Educational Resources Information Center

"Third places" or public and informal gathering places have declined over the years. Third places, which are "neutral ground" where people gather to discuss, interact, and enjoy the company of those they know, are important for the health of communities. It's a known fact that teens have a strong need to socialize, and their third-space options…

Heeger, Paula Brehm

2006-01-01

253

The Terror of the Place: Anxieties of Place and the Cultural Narrative of Terrorism  

Microsoft Academic Search

Place is sometimes understood as reinforcing personal and cultural identity in the face of dissipating versions of modernism or postmodernism. However, that identity can also come with a variety of cultural neuroses and manias that are inscribed on place. I consider the ways in which terrorism has become a feature of place, and how we can expect to see the

Bruce Janz

2008-01-01

254

Re(Place) Your Typical Writing Assignment: An Argument for Place-Based Writing  

ERIC Educational Resources Information Center

Place-based writing affords students an opportunity to write meaningfully about themselves, grounded in a place that they know. Place-based writing is versatile and can be additive--taking just a week or two within a semester of different projects--or transformative, if positioned as the theme for an entire course. If students can learn to write…

Jacobs, Elliot

2011-01-01

255

A comparative contrast-detail study of five medical displays  

SciTech Connect

The objective of this study was to compare the contrast-detail performance of five different commercial liquid crystal displays (LCDs) to other LCD and cathode-ray tube (CRT) displays for medical applications. A contrast-detail phantom, supplemented with 5 in. of acrylic, was imaged on a commercial digital radiographic system using techniques comparable to chest radiography. The phantom design enabled observer evaluation by a four-alternative forced choice paradigm. The acquired images were independently scored by five observers on five medical display devices: a 5 megapixel monochrome LCD, a 3 megapixel monochrome LCD, a 9 megapixel color LCD, a 5 megapixel monochrome CRT, and a mammographic-grade monochrome CRT. The data were analyzed using the method suggested by the manufacturer based on a nearest neighbor correction technique. They were further analyzed using a logistic regression response model with a natural threshold using an overall chi-square test for display type followed by pairwise comparisons for individual display performance. The differences between the display devices were small. The standard analysis of the results based on the manufacturer-recommended method did not yield any statistically discernible trend among displays. The logistic regression analysis, however, indicated that the 5 megapixel monochrome LCD was statistically significantly (p<0.0001) superior to the others, followed by the 3 megapixel monochrome LCD (p<0.0001). The three other displays exhibited lower but generally similar performance characteristics. The findings suggest that 5 and 3 megapixel monochrome LCDs provide comparable but subtly superior contrast detectability than other tested displays, with the former performing slightly better in the detection of subtle and fine details.

Samei, Ehsan; Ranger, Nicole T.; Delong, David M. [Duke Advanced Imaging Laboratories, Departments of Radiology, Biomedical Engineering, and Physics, Duke University, Durham, North Carolina 27710 (United States); Duke Advanced Imaging Laboratories, Department of Radiology, Duke University, Durham, North Carolina 27710 (United States); Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina 27710 (United States)

2008-04-15

256

Place and Technology in the Home  

Microsoft Academic Search

The home is a complex environment, designed for general use but shaped by individual needs and desires. It is a place often\\u000a shared by several people with different demands and requirements. It is a place embedded with technologies utilised at various\\u000a times by people in diverse ways. Until recently most home technologies have been primarily functional; aimed at easing domestic

Lynne Baillie; David Benyon

2008-01-01

257

Space Place Live: Episode with Linda Herrell  

NSDL National Science Digital Library

In this episode of Space Place Live, we meet Linda Herrell, a space mission architect, and learn that not all architects design buildings. Viewers find out how a love of French and Spanish led her to a love of computers and space technology âand what artsy hobby she picked to use her special design skills. Space Place Live introduces kids to the human, down-to-earth side of real scientists and engineers working in the space program.

2007-08-01

258

IMAGES, IMAGES, IMAGES  

SciTech Connect

The role of images of information (charts, diagrams, maps, and symbols) for effective presentation of facts and concepts is expanding dramatically because of advances in computer graphics technology, increasingly hetero-lingual, hetero-cultural world target populations of information providers, the urgent need to convey more efficiently vast amounts of information, the broadening population of (non-expert) computer users, the decrease of available time for reading texts and for decision making, and the general level of literacy. A coalition of visual performance experts, human engineering specialists, computer scientists, and graphic designers/artists is required to resolve human factors aspects of images of information. The need for, nature of, and benefits of interdisciplinary effort are discussed. The results of an interdisciplinary collaboration are demonstrated in a product for visualizing complex information about global energy interdependence. An invited panel will respond to the presentation.

Marcus, A.

1980-07-01

259

Image transfer protocol in progressively increasing resolution  

NASA Technical Reports Server (NTRS)

A method of transferring digital image data over a communication link transforms and orders the data so that, as data is received by a receiving station, a low detail version of the image is immediately generated with later transmissions of data providing progressively greater detail in this image. User instructions are accepted, limiting the ultimate resolution of the image or suspending enhancement of the image except in certain user defined regions. When a low detail image is requested followed by a request for a high detailed version of the same image, the originally transmitted data of the low resolution image is not discarded or retransmitted but used with later data to improve the originally transmitted image. Only a single copy of the transformed image need be retained by the transmitting device in order to satisfy requests for different amounts of image detail.

Percival, Jeffrey W. (Inventor); White, Richard L. (Inventor)

1999-01-01

260

What are Satellite Images?  

NSDL National Science Digital Library

This is an activity about image analysis. Learners will create a map of the room and discuss the perspectives shown in their drawings and how this relates to satelite images. Participants brainstorm a list of features that might be recognizable in satellite photos, search the Earth Images for these features, and place the images in categories depicting these features. This is activity 2 of 9 in Mars and Earth: Science Learning Activities for After School.

261

REVIEW: Recent developments in breast imaging  

NASA Astrophysics Data System (ADS)

A review of breast imaging has already appeared in 1982 in this journal. Consequently, the present article concentrates on a discussion of only those developments of a more recent nature. Although the emphasis is placed on the physical aspects of the different imaging methods concerned, the essential factors relating to the clinical background and the associated radiation risk are also outlined. The completeness of detail depends on the present clinical importance of the method under discussion. X-ray mammography, which is still the most important breast imaging technique and has proved to be an effective method for breast cancer screening, is therefore treated in greater detail. Since the early 1980s, ultrasound B-mode scanning has evolved to an indispensable adjunct to x-ray mammography. For Doppler sonography, diaphanography, contrast-enhanced MRI, CT and DSA, the visualization of a tumour depends essentially on the enhanced vascularity of the lesion. Whether this will prove to be a reliable indicator for malignancy remains to be shown in controlled clinical studies. Common to all imaging systems is the increasing use of digital methods for signal processing, which also offers the possibility of computer-aided diagnosis by texture analysis and pattern recognition.

Säbel, Manfred; Aichinger, Horst

1996-03-01

262

General Ultrasound Imaging  

MedlinePLUS

... waves. Ultrasound imaging, also called ultrasound scanning or sonography , involves the use of a small transducer (probe) and ultrasound gel placed directly on the skin. High-frequency sound waves are transmitted from the ...

263

Observe many representations of a single place  

NSDL National Science Digital Library

Created for high school students, this interactive Earth science visualization presents eight different images of Mount Shasta, a volcano in California. Among the eight views are a satellite image, a geologic map, and a plot of lava flows in the area. When students click on each image, they will see either an enlargement of it or, in the case of the 3-D fly-around image, a short movie. Students can also click on a button to open a U.S. map that shows where Mount Shasta is located. Copyright 2005 Eisenhower National Clearinghouse

Education, Terc. C.; Littell, Mcdougal

2003-01-01

264

Towards a detailed soot model for internal combustion engines  

SciTech Connect

In this work, we present a detailed model for the formation of soot in internal combustion engines describing not only bulk quantities such as soot mass, number density, volume fraction, and surface area but also the morphology and chemical composition of soot aggregates. The new model is based on the Stochastic Reactor Model (SRM) engine code, which uses detailed chemistry and takes into account convective heat transfer and turbulent mixing, and the soot formation is accounted for by SWEEP, a population balance solver based on a Monte Carlo method. In order to couple the gas-phase to the particulate phase, a detailed chemical kinetic mechanism describing the combustion of Primary Reference Fuels (PRFs) is extended to include small Polycyclic Aromatic Hydrocarbons (PAHs) such as pyrene, which function as soot precursor species for particle inception in the soot model. Apart from providing averaged quantities as functions of crank angle like soot mass, volume fraction, aggregate diameter, and the number of primary particles per aggregate for example, the integrated model also gives detailed information such as aggregate and primary particle size distribution functions. In addition, specifics about aggregate structure and composition, including C/H ratio and PAH ring count distributions, and images similar to those produced with Transmission Electron Microscopes (TEMs), can be obtained. The new model is applied to simulate an n-heptane fuelled Homogeneous Charge Compression Ignition (HCCI) engine which is operated at an equivalence ratio of 1.93. In-cylinder pressure and heat release predictions show satisfactory agreement with measurements. Furthermore, simulated aggregate size distributions as well as their time evolution are found to qualitatively agree with those obtained experimentally through snatch sampling. It is also observed both in the experiment as well as in the simulation that aggregates in the trapped residual gases play a vital role in the soot formation process. (author)

Mosbach, Sebastian; Celnik, Matthew S.; Raj, Abhijeet; Kraft, Markus [Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA (United Kingdom); Zhang, Hongzhi R. [Department of Chemical Engineering, University of Utah, 1495 East 100 South, Kennecott Research Building, Salt Lake City, UT 84112 (United States); Kubo, Shuichi [Frontier Research Center, Toyota Central R and D Labs., Inc., Nagakute, Aichi 480-1192 (Japan); Kim, Kyoung-Oh [Higashifuji Technical Center, Toyota Motor Corporation, Mishuku 1200, Susono, Shizuoka 480-1193 (Japan)

2009-06-15

265

Detailed balance in Horava-Lifshitz gravity  

E-print Network

We study Horava-Lifshitz gravity in the presence of a scalar field. When the detailed balance condition is implemented, a new term in the gravitational sector is added in order to maintain ultraviolet stability. The four-dimensional theory is of a scalar-tensor type with a positive cosmological constant and gravity is nonminimally coupled with the scalar and its gradient terms. The scalar field has a double-well potential and, if required to play the role of the inflation, can produce a scale-invariant spectrum. The total action is rather complicated and there is no analog of the Einstein frame where Lorentz invariance is recovered in the infrared. For these reasons it may be necessary to abandon detailed balance. We comment on open problems and future directions in anisotropic critical models of gravity.

Gianluca Calcagni

2009-05-22

266

Structural concepts and details for seismic design  

SciTech Connect

This manual discusses building and building component behavior during earthquakes, and provides suggested details for seismic resistance which have shown by experience to provide adequate performance during earthquakes. Special design and construction practices are also described which, although they might be common in some high-seismic regions, may not be common in low and moderate seismic-hazard regions of the United States. Special attention is given to describing the level of detailing appropriate for each seismic region. The UBC seismic criteria for all seismic zones is carefully examined, and many examples of connection details are given. The general scope of discussion is limited to materials and construction types common to Department of Energy (DOE) sites. Although the manual is primarily written for professional engineers engaged in performing seismic-resistant design for DOE facilities, the first two chapters, plus the introductory sections of succeeding chapters, contain descriptions which are also directed toward project engineers who authorize, review, or supervise the design and construction of DOE facilities. 88 refs., 188 figs.

Not Available

1991-09-01

267

Image and information management system  

NASA Technical Reports Server (NTRS)

A system and methods through which pictorial views of an object's configuration, arranged in a hierarchical fashion, are navigated by a person to establish a visual context within the configuration. The visual context is automatically translated by the system into a set of search parameters driving retrieval of structured data and content (images, documents, multimedia, etc.) associated with the specific context. The system places ''hot spots'', or actionable regions, on various portions of the pictorials representing the object. When a user interacts with an actionable region, a more detailed pictorial from the hierarchy is presented representing that portion of the object, along with real-time feedback in the form of a popup pane containing information about that region, and counts-by-type reflecting the number of items that are available within the system associated with the specific context and search filters established at that point in time.

Robertson, Tina L. (Inventor); Raney, Michael C. (Inventor); Dougherty, Dennis M. (Inventor); Kent, Peter C. (Inventor); Brucker, Russell X. (Inventor); Lampert, Daryl A. (Inventor)

2009-01-01

268

Chord, Tie Bar & Crossbracing Joint Detail in Plan; Crossbracing ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Chord, Tie Bar & Crossbracing Joint Detail in Plan; Crossbracing Center Joint Detail in Plan; Chord Joining Detail in Plan & Elevation; Chord, Panel Post, Tie Bar, & Diagonal Brace Joint Detail; Crossbracing Center Joint Detail in Section; Chord, Panel Post, Tie Bar & Horizontal Brace Joint Detail - Narrows Bridge, Spanning Sugar Creek at Old County Road 280 East, Marshall, Parke County, IN

269

Beneath the Web and over the Stream: The Search for Safe Places in "Charlotte's Web" and "Bridge to Terabithia."  

ERIC Educational Resources Information Center

Considers in detail "a safe place" in two popular children's novels. Concludes that a crucial thematic aspect becomes one of balance--balance between reason and imagination, reality and fantasy, the finite and the infinite--and that the safe places created in these stories are built out of a reasoned solution to a problem. (PA)

Misheff, Sue

1998-01-01

270

Calcium transient prevalence across the dendritic arbour predicts place field properties.  

PubMed

Establishing the hippocampal cellular ensemble that represents an animal's environment involves the emergence and disappearance of place fields in specific CA1 pyramidal neurons, and the acquisition of different spatial firing properties across the active population. While such firing flexibility and diversity have been linked to spatial memory, attention and task performance, the cellular and network origin of these place cell features is unknown. Basic integrate-and-fire models of place firing propose that such features result solely from varying inputs to place cells, but recent studies suggest instead that place cells themselves may play an active role through regenerative dendritic events. However, owing to the difficulty of performing functional recordings from place cell dendrites, no direct evidence of regenerative dendritic events exists, leaving any possible connection to place coding unknown. Using multi-plane two-photon calcium imaging of CA1 place cell somata, axons and dendrites in mice navigating a virtual environment, here we show that regenerative dendritic events do exist in place cells of behaving mice, and, surprisingly, their prevalence throughout the arbour is highly spatiotemporally variable. Furthermore, we show that the prevalence of such events predicts the spatial precision and persistence or disappearance of place fields. This suggests that the dynamics of spiking throughout the dendritic arbour may play a key role in forming the hippocampal representation of space. PMID:25363782

Sheffield, Mark E J; Dombeck, Daniel A

2015-01-01

271

Advanced radiographic imaging techniques.  

NASA Technical Reports Server (NTRS)

Examination of the nature and operational constraints of conventional X-radiographic and neutron imaging methods, providing a foundation for a discussion of advanced radiographic imaging systems. Two types of solid-state image amplifiers designed to image X rays are described. Operational theory, panel construction, and performance characteristics are discussed. A closed-circuit television system for imaging neutrons is then described and the system design, operational theory, and performance characteristics are outlined. Emphasis is placed on a description of the advantages of these imaging systems over conventional methods.

Beal, J. B.; Brown, R. L.

1973-01-01

272

Cure-in-place process for seals  

DOEpatents

A cure-in-place process which allows a rubber seal element to be deformed to its service configuration before it is cross-linked and, hence, is a plastic and does not build up internal stress as a result of the deformation. This provides maximum residual strength to resist the differential pressure. Furthermore, the process allows use of high modulus formulations of the rubber seal element which would otherwise crack if cured and then deformed to its service configuration, resulting in a seal which has better gap bridging capability. Basically, the process involves positioning an uncured seal element in place, deforming it to its service configuration, heating the seal element, curing it in place, and then fully seating the seal.

Hirasuna, Alan R. (Corona Del Mar, CA)

1981-01-01

273

Automating Shallow Seismic Imaging  

SciTech Connect

This seven-year, shallow-seismic reflection research project had the aim of improving geophysical imaging of possible contaminant flow paths. Thousands of chemically contaminated sites exist in the United States, including at least 3,700 at Department of Energy (DOE) facilities. Imaging technologies such as shallow seismic reflection (SSR) and ground-penetrating radar (GPR) sometimes are capable of identifying geologic conditions that might indicate preferential contaminant-flow paths. Historically, SSR has been used very little at depths shallower than 30 m, and even more rarely at depths of 10 m or less. Conversely, GPR is rarely useful at depths greater than 10 m, especially in areas where clay or other electrically conductive materials are present near the surface. Efforts to image the cone of depression around a pumping well using seismic methods were only partially successful (for complete references of all research results, see the full Final Technical Report, DOE/ER/14826-F), but peripheral results included development of SSR methods for depths shallower than one meter, a depth range that had not been achieved before. Imaging at such shallow depths, however, requires geophone intervals of the order of 10 cm or less, which makes such surveys very expensive in terms of human time and effort. We also showed that SSR and GPR could be used in a complementary fashion to image the same volume of earth at very shallow depths. The primary research focus of the second three-year period of funding was to develop and demonstrate an automated method of conducting two-dimensional (2D) shallow-seismic surveys with the goal of saving time, effort, and money. Tests involving the second generation of the hydraulic geophone-planting device dubbed the ''Autojuggie'' showed that large numbers of geophones can be placed quickly and automatically and can acquire high-quality data, although not under rough topographic conditions. In some easy-access environments, this device could make SSR surveying considerably more efficient and less expensive, particularly when geophone intervals of 25 cm or less are required. The most recent research analyzed the difference in seismic response of the geophones with variable geophone spike length and geophones attached to various steel media. Experiments investigated the azimuthal dependence of the quality of data relative to the orientation of the rigidly attached geophones. Other experiments designed to test the hypothesis that the data are being amplified in much the same way that an organ pipe amplifies sound have so far proved inconclusive. Taken together, the positive results show that SSR imaging within a few meters of the earth's surface is possible if the geology is suitable, that SSR imaging can complement GPR imaging, and that SSR imaging could be made significantly more cost effective, at least in areas where the topography and the geology are favorable. Increased knowledge of the Earth's shallow subsurface through non-intrusive techniques is of potential benefit to management of DOE facilities. Among the most significant problems facing hydrologists today is the delineation of preferential permeability paths in sufficient detail to make a quantitative analysis possible. Aquifer systems dominated by fracture flow have a reputation of being particularly difficult to characterize and model. At chemically contaminated sites, including U.S. Department of Energy (DOE) facilities and others at Department of Defense (DOD) installations worldwide, establishing the spatial extent of the contamination, along with the fate of the contaminants and their transport-flow directions, is essential to the development of effective cleanup strategies. Detailed characterization of the shallow subsurface is important not only in environmental, groundwater, and geotechnical engineering applications, but also in neotectonics, mining geology, and the analysis of petroleum reservoir analogs. Near-surface seismology is in the vanguard of non-intrusive approaches to increase knowledge of the shallow subsurface; our

Steeples, Don W.

2004-12-09

274

Microbial Cell Imaging  

SciTech Connect

Atomic force microscopy (AFM) is finding increasing application in a variety of fields including microbiology. Until the emergence of AFM, techniques for ivnestigating processes in single microbes were limited. From a biologist's perspective, the fact that AFM can be used to generate high-resolution images in buffers or media is its most appealing feature as live-cell imaging can be pursued. Imaging living cells by AFM allows dynamic biological events to be studied, at the nanoscale, in real time. Few areas of biological research have as much to gain as microbiology from the application of AFM. Whereas the scale of microbes places them near the limit of resolution for light microscopy. AFM is well suited for the study of structures on the order of a micron or less. Although electron microscopy techniques have been the standard for high-resolution imaging of microbes, AFM is quickly gaining favor for several reasons. First, fixatives that impair biological activity are not required. Second, AFM is capable of detecting forces in the pN range, and precise control of the force applied to the cantilever can be maintained. This combination facilitates the evaluation of physical characteristics of microbes. Third, rather than yielding the composite, statistical average of cell populations, as is the case with many biochemical assays, the behavior of single cells can be monitored. Despite the potential of AFM in microbiology, there are several limitations that must be considered. For example, the time required to record an image allows for the study of gross events such as cell division or membrane degradation from an antibiotic but precludes the evaluation of biological reactions and events that happen in just fractions of a second. Additionally, the AFM is a topographical tool and is restricted to imaging surfaces. Therefore, it cannot be used to look inside cells as with opticla and transmission electron microscopes. other practical considerations are the limitation on the maximum scan size (roughly 100 x 100 {mu}m) and the restricted movement of the cantilever in the Z (or height) direction. In most commercial AFMs, the Z range is restricted to roughly 10 {mu}m such that the height of cells to be imaged must be seriously considered. Nevertheless, AFM can provide structural-functional information at nanometer resolution and do so in physiologically relevant environments. Further, instrumentation for scanning probe microscopy continues to advance. Systems for high-speed imaging are becoming available, and techniques for looking inside the cells are being demonstrated. The ability to combine AFM with other imaging modalities is likely to have an even greater impact on microbiological studies. AFM studies of intact microbial cells started to appear in the literature in the 1990s. For example, AFM studies of Saccharomyces cerevisiae examined buddings cars after cell division and detailed changes related to cell growth processes. Also, the first AFM studies of bacterial biofilms appeared. In the late 1990s, AFM studies of intact fungal spores described clear changes in spore surfaces upon germination, and studies of individual bacterial cells were also described. These early bacterial imaging studies examined changes in bacterial morphology due to antimicrobial peptides exposure and bacterial adhesion properties. The majority of these early studies were carried out on dried samples and took advantage of the resolving power of AFM. The lack of cell mounting procedures presented an impediment for cell imaging studies. Subsequently, several approaches to mounting microbial cells have been developed, and these techniques are described later. Also highlighted are general considerations for microbial imaging and a description of some of the various applications of AFM to microbiology.

Doktycz, Mitchel John [ORNL; Sullivan, Claretta [Eastern Virginia Medical School; Mortensen, Ninell P [ORNL; Allison, David P [ORNL

2011-01-01

275

Space Place Live! With Linda Herrell  

NSDL National Science Digital Library

This is an episode of the Space Place Live talk show. Learners will watch NASA space mission architect Linda Herrell as she talks about her job in designing and testing new technology for the New Millennia Program, as well as engineering the spacecraft and rockets that would be necessary for space missions. Cartoon characters present their own brief talk show from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. Guests present a short science or technology concept, and also talk about their job, their hobbies, and how they became interested in a career in science or engineering.

276

Space Place: Let's go to Mars!  

NSDL National Science Digital Library

This module of the Space Place Web site is an interactive game in which players must decide on appropriateness of items to take on a long trip to Mars. Players must consider effects of zero gravity, limited electrical power, etc. It explains what NASA is doing to explore Mars and why. The Space Place is an educational NASA site for children and adults with activities and facts related to the exploration of spaceâpast, current, and future. Some activities are computer-interactive and many are real-world-interactive.

Jpl, Nasa

2011-01-01

277

A Case for Detailed Surface Analysis.  

NASA Astrophysics Data System (ADS)

Detailed analysis of the temperature and moisture fields based on routine hourly surface observations in North America can provide a rational basis for surface feature analysis, thus clarifying the present confusion. Recognition of surface features is an important part of weather forecasting and is especially needed in a careful diagnosis for the prospects of deep convection.Surface temperature gradients are advocated as the primary basis for identifying fronts; examples are given of gross discrepancies in current operational practice between the surface temperature fields and the associated frontal analyses. Surface potential temperature, selected as a means of compensating for elevation differences, is analyzed in the western United States for a period in which a strong, damaging cold front develops and dissipates over a period of less than 24 h. Frontogenesis-related calculations, based on detailed surface temperature analyses, help to explain a case of focusing of heavy precipitation in northern Kentucky that produced a flash flood.Conditions for the initiation of intense convection are illustrated by detailed analyses of the surface moisture and temperature fields. These are used to estimate the buoyancy of surface air lifted to midtroposphere and show the relationship of this buoyancy to ensuing convection. The analyses aid in recognition of the surface dryline (a feature commonly misanalyzed as a cold front) and those convectively produced pools of cold air at the surface that often play a major role in the subsequent redevelopment of convection.The proposed analyses might be difficult to achieve manually in operational practice during busy weather situations, but this could be facilitated by using objective methods with present and prospective workstations. Once surface features are identified, their temporal and spatial evolution must be followed carefully since they can change rapidly.

Sanders, Frederick; Doswell, Charles A., III

1995-04-01

278

Detailed chemical kinetic model for ethanol oxidation  

SciTech Connect

A detailed chemical kinetic model for ethanol oxidation has been developed and validated against a variety of experimental data sets. Laminar flame speed data obtained from a constant volume bomb, ignition delay data behind reflected shock waves, and ethanol oxidation product profiles from a turbulent flow reactor were used in this study. Very good agreement was found in modeling the data sets obtained from the three different experimental systems. The computational modeling results show that high temperature ethanol oxidation exhibits strong sensitivity to the fall-off kinetics of ethanol decomposition, branching ratio selection for c2h5oh+oh=products, and reactions involving the hydroperoxyl (HO2) radical.

Marinov, N.

1997-04-01

279

Implementation details of the coupled QMR algorithm  

NASA Technical Reports Server (NTRS)

The original quasi-minimal residual method (QMR) relies on the three-term look-ahead Lanczos process, to generate basis vectors for the underlying Krylov subspaces. However, empirical observations indicate that, in finite precision arithmetic, three-term vector recurrences are less robust than mathematically equivalent coupled two-term recurrences. Therefore, we recently proposed a new implementation of the QMR method based on a coupled two-term look-ahead Lanczos procedure. In this paper, we describe implementation details of this coupled QMR algorithm, and we present results of numerical experiments.

Freund, Roland W.; Nachtigal, Noel M.

1992-01-01

280

Image Viewer using Digital Imaging and Communications in Medicine (DICOM)  

NASA Astrophysics Data System (ADS)

Digital Imaging and Communications in Medicine is a standard for handling, storing, printing, and transmitting information in medical imaging. The National Electrical Manufacturers Association holds the copyright to this standard. It was developed by the DICOM Standards committee. The other image viewers cannot collectively store the image details as well as the patient's information. So the image may get separated from the details, but DICOM file format stores the patient's information and the image details. Main objective is to develop a DICOM image viewer. The image viewer will open .dcm i.e. DICOM image file and also will have additional features such as zoom in, zoom out, black and white inverter, magnifier, blur, B/W inverter, horizontal and vertical flipping, sharpening, contrast, brightness and .gif converter are incorporated.

Baraskar, Trupti N.

2010-11-01

281

Retrieval of butterfly from its sketched image utilizing image navigation directory on multimedia network  

Microsoft Academic Search

This paper describes a new type of image directory for butterflies, called an image navigation directory, which retrieves a desired image referring to a series of typical sample images specified as keys in place of keywords. After the image coming from the imagination of the user is sketched on the display, the image navigation directory having three functions is used

Mitsuru Nagao; Kayo Suzuki; Akira Muraki; Hiroaki Ikeda; Yoshifumi Shimodaira; Masato Yamazaki

1998-01-01

282

Space Place: What is the Secret Code Used by the Voyager Spacecraft?  

NSDL National Science Digital Library

This module from the Space Place Web site allows students to learn the secret code spacecraft use to send images back from space. It introduces the language of computers and spacecraft. Binary and hexadecimal notations are explained. The Space Place is an educational NASA site for children and adults with activities and facts related to the exploration of space â past, current and future. Some activities are computer-interactive and many are real-world-interactive.

2011-01-01

283

Detailed Comparison of Blast Effects in Air and Vacuum  

NASA Astrophysics Data System (ADS)

We have performed a detailed investigation of blast effects from high-explosive detonations in air and in vacuum. This research was done with 4 kg charges in a large- volume fully contained spherical firing tank. The most obvious consequence of detonation in vacuum is that prompt shock effects are negated as the detonation has no external medium for coupling. The nature of the fireball is also completely altered due to the lack of surface combustion. However, we find that the net effect of the blast on large area witness plates is remarkably very similar in the air and vacuum environments. Diagnostics for this blast characterization included multiple-view high-speed imaging systems and time resolved pressure data gauges. Experimental results and model simulations will be presented.

Tringe, J. W.; Molitoris, J. D.; Garza, R. G.; Andreski, H. G.; Batteux, J. D.; Lauderbach, L. M.; Vincent, E. R.; Wong, B. M.

2007-06-01

284

Detailed characterization of PBX morphology for mesoscale simulations  

NASA Astrophysics Data System (ADS)

Plastic-Bonded Explosives (PBXs) are composed of energetic grains embedded in a polymeric binder. The heterogeneity at this material scale serves to localize energy during deformation, determining damage and hot spot development leading to reaction. Accurate determination of PBX morphology is needed to characterize and understand these materials, and is essential input for mesoscale simulations. X-ray microtomography was used to determine the threedimensional x-ray cross-section of a mock explosive for which all formulation details are known. Specialized image processing routines were used to identify individual features (voids, grains, binder). Mass fractions, void content, and grain size statistics were compared with the formulation. The quantity of material needed to accurately represent the mesostructure in simulations, i.e. representative volume element size, was determined, as well as grain on grain contact density, which may correlate with sensitivity. Preliminary results from computations using these mesostructures will be reported.

Bardenhagen, Scott Gary; Luo, Huiyang; Armstrong, Ronald W.; Lu, Hongbing

2012-03-01

285

Detailed Characterization of PBX Morphology for Mesoscale Simulations  

NASA Astrophysics Data System (ADS)

Plastic-Bonded Explosives (PBXs) are composed of energetic grains embedded in a polymeric binder. The heterogeneity at this material scale serves to localize energy during deformation, determining damage and hot spot development leading to reaction. Accurate determination of PBX morphology is needed to characterize and understand these materials, and is essential input for mesoscale simulations. X-ray microtomography was used to determine the three-dimensional x-ray cross-section of a mock explosive for which all formulation details are known. Specialized image processing routines were used to identify individual features (voids, grains, binder). Mass fractions, void content, and grain size statistics were compared with the formulation. The quantity of material needed to accurately represent the mesostructure in simulations, i.e. representative volume element size, was determined, as well as grain on grain contact density, which may correlate with sensitivity. Preliminary results from computations using these mesostructures will be reported.

Bardenhagen, Scott; Luo, Huiyang; Lu, Hongbing; Armstrong, Ronald

2011-06-01

286

A detailed analysis of Mariner nine TV navigation data.  

NASA Technical Reports Server (NTRS)

Mariner 9 data analysis showed a good performance of the Mars probe planetary approach navigation systems and a good agreement between measured and predicted probe-approach characteristics. It was found that all operations were completed on time and that the calibration of the instruments and the observation of a greater-than-planned number of stars resulted in a higher-than-expected measurement accuracy. The key instruments of the Mariner were TV cameras taking pictures of Phobos and Deimos against a background of stars, calibrated sun and star sensors, and a scan platform. The error models used for optical navigation system elements, the calibration of the scan platform and of the TV cameras, and the image detection and location techniques are discussed in detail.

Breckenridge, W. G.; Acton, C. H., Jr.

1972-01-01

287

39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. THE STAMP AN MORTAR BOX ARE ON THE LEFT AND THE FEEDER WITH ITS FEEDER DISK IS ON THE RIGHT. NOTE THE COLLAR ON THE CENTER STAMP STEM (UPPER LEFT CORNER OF THE IMAGE) THAT ACTIVATES THE LEVER IN THE CENTER OF THE PHOTO. THE COLLAR IS POSITIONED SUCH THAT WHEN THE LEVEL OF THE MATERIAL REACHES A LOW POINT IN THE MORTAR BOX IT PUSHES DOWN ON THE LEVER WHICH IN TURN ACTIVATES THE AUTOMATIC FEEDER DRIVE MECHANISM WHICH THEM DELIVERS ORE INTO THE BACKSIDE OF THE MORTAR BOX. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

288

Detailed balance of the Feynman micromotor  

NASA Astrophysics Data System (ADS)

One existing implication of micromotors is that they can be powered by rectifying non-equilibrium thermal fluctuations or mechanical vibrations via the so-called Feynman- micromotor. An example of mechanical rectification is found in the batteryless wristwatch. The original concept was described in as early as 1912 by Smoluchowski and was later revisited in 1963 by Feynman, in the context of rectifying thermal fluctuations to obtain useful motion. It has been shown that, although rectification is impossible at equilibrium, it is possible for the Feynman-micromotor to perform work under non-equilibrium conditions. These concepts can now be realized by MEMS technology and may have exciting implications in biomedicine - where the Feynman- micromotor can be used to power a smart pill, for example. Previously, Feynman's analysis of the motor's efficiency has been shown to be flawed by Parrondo and Espanol. We now show there are further problems in Feynman's treatment of detailed balance. In order to design and understand this device correctly, the equations of detailed balance must be found. Feynman's approach was to use probabilities based on energies and we show that this is problematic. In this paper, we demonstrate corrected equations using level crossing probabilities instead. A potential application of the Feynman-micromotor is a batteryless nanopump that consists of a small MEMS chip that adheres to the skin of a patient and dispense nanoliter quantities of medication. Either mechanical or thermal rectification via a Feynman- micromotor, as the power source, is open for possible investigation.

Abbott, Derek; Davis, Bruce R.; Parrondo, Juan M. R.

1999-09-01

289

Tracing Detailed Starspot Evolution with Kepler  

NASA Astrophysics Data System (ADS)

Modeling sinusoidal flux variations in high precision photometry due to starspots, and their evolution over time, reveals critical information about the strength and nature of stellar magnetic fields. Photometry from the Kepler mission has discovered the presence of cool starspots on the surfaces of thousands of main sequence stars. Here we show preliminary results from our campaign to model the detailed time evolution of starspots on four stars. The rapidly rotating M4 star, GJ 1243, exhibits a remarkably stable polar starspot spanning three years of observation. A secondary polar spot is also seen, with an evolution timescale of hundreds of days. Three G/K stars with a wide range of rotation periods have also been studied, KOI-63, Kepler 17, and HAT-P-11. These systems all have planetary transits in their light curves, which we exploit to break degeneracies between spot surface coverage area and spot latitude. These transits can also probe smaller-scale starspot features on the stellar surface along a fixed latitude. By modeling the in- and out-of-eclipse light curves (see corresponding poster by L. Hebb) we are able to trace the detailed starspot evolution for several years in each system. This will help to constrain key physical parameters, such as mean rotation period, differential rotation, and diffusion timescales.

Davenport, James R.; Hebb, L.; Hawley, S. L.

2014-01-01

290

Detailed Chemical Kinetic Modeling of Hydrazine Decomposition  

NASA Technical Reports Server (NTRS)

The purpose of this research project is to develop and validate a detailed chemical kinetic mechanism for gas-phase hydrazine decomposition. Hydrazine is used extensively in aerospace propulsion, and although liquid hydrazine is not considered detonable, many fuel handling systems create multiphase mixtures of fuels and fuel vapors during their operation. Therefore, a thorough knowledge of the decomposition chemistry of hydrazine under a variety of conditions can be of value in assessing potential operational hazards in hydrazine fuel systems. To gain such knowledge, a reasonable starting point is the development and validation of a detailed chemical kinetic mechanism for gas-phase hydrazine decomposition. A reasonably complete mechanism was published in 1996, however, many of the elementary steps included had outdated rate expressions and a thorough investigation of the behavior of the mechanism under a variety of conditions was not presented. The current work has included substantial revision of the previously published mechanism, along with a more extensive examination of the decomposition behavior of hydrazine. An attempt to validate the mechanism against the limited experimental data available has been made and was moderately successful. Further computational and experimental research into the chemistry of this fuel needs to be completed.

Meagher, Nancy E.; Bates, Kami R.

2000-01-01

291

*PLACE OF STUDY School of Business  

E-print Network

-depth knowledge of methods of data analysis to support decision-making and to improve business pro- cesses*PLACE OF STUDY School of Business and Social Sciences, Aarhus ANNUAL TUITION FEE EU/EEA/Swiss citizens: FREE Others: EUR 10,000 (60 ECTS) Business intelligence is concerned with concepts and methods

292

Annual Review The Power of Place  

E-print Network

achievements of our people. All of this comes together to foster a culture of ambition and collegiality, as we the uniqueness of UTSC, we like to talk about the power of place. We have strong beliefs about our campus- ence if you see it alone on your tablet, at home on TV with your family, at your local movie theatre

Boonstra, Rudy

293

Online Customer Service | Place Ad Aloha, Garrett!  

E-print Network

Online Customer Service | Place Ad Like 202k Aloha, Garrett! Logout | My Account Tuesday, October Projects Movies TV Week Customer Service Lava flows found to have formed most of islands' mass - Hawaii in discussions By participating in online discussions you acknowledge that you have read and agreed to the TERMS

Ito, Garrett

294

The Bay in Place of a Glacier.  

ERIC Educational Resources Information Center

The cultural resource specialist at Glacier Bay National Park (Alaska) explains the collaborative efforts of park staff and the Hoonah Tlingit to overcome language and cultural barriers in documenting park place names and clan oral history and traditions. The new park-community relationship, which follows decades of conflict, includes training…

Howell, Wayne

1997-01-01

295

Reframing Primary Curriculum through Concepts of Place  

ERIC Educational Resources Information Center

Australian curricula name "sustainability" as a key priority area with implications for preparing pre-service teachers. In the research that generated this paper, we asked: How can framing teaching through space and place inform pre-service teachers' pedagogical thinking and practice? In new third year Bachelor of Education…

Power, Kerith; Green, Monica

2014-01-01

296

Jamestown and Disneyland: Two Places in Time.  

ERIC Educational Resources Information Center

This unit for high school students uses two dissimilar places in time; (2) Jamestown, Virginia, founded in 1607, one of the earliest settlements in the United States and (2) Disneyland, California, built in 1956, an institution of contemporary culture. The lessons address two fundamental questions in geography: (1) where? and (2) why here rather…

Scrofani, E. Robert; Tideman, Robert

297

Places to Go: Pedagogy in Action  

ERIC Educational Resources Information Center

In this edition of Places to Go, Stephen Downes explores Pedagogy in Action, a Web site that seeks to provide pedagogical resources and support to educators in the field of scientific education. Managed by Carleton College, a small Midwestern liberal arts college, Pedagogy in Action, argues Downes, exemplifies what the Internet can do: increase…

Downes, Stephen

2008-01-01

298

Hands On Discovery Place of Birmingham.  

ERIC Educational Resources Information Center

The inquiry approach of Discovery Place of Birmingham, Inc., in Birmingham, Alabama, invites children of all ages to explore the excitement of science, technology, art, and humanities. The educational resource center provides interactive exhibits, hands-on materials, teacher workshops, and family programs. (JDD)

Chancellor, Mindi Long

1989-01-01

299

Placing a Fyke Net in Wetland Vegetation  

USGS Multimedia Gallery

Glen Black of GLSC and Angela Wahlquist of Northland College places fyke net in wetland vegetation in Fish Creek Slough of Lake Superior near Ashland, Wisconsin, as part of a study of bioindicators of wetland degradation in the Great Lakes. This study is funded by the U.S. EPA Environmental Research...

300

Cyber War Will Not Take Place  

Microsoft Academic Search

For almost two decades, experts and defense establishments the world over have been predicting that cyber war is coming. But is it? This article argues in three steps that cyber war has never happened in the past, that cyber war does not take place in the present, and that it is unlikely that cyber war will occur in the future.

Thomas Rid

2011-01-01

301

Cyber War Will Not Take Place  

Microsoft Academic Search

For almost two decades, experts and defense establishments the world over have been predicting that cyber war is coming. But is it? This article argues in three steps that cyber war has never happened in the past, that cyber war does not take place in the present, and that it is unlikely that cyber war will occur in the future.

Thomas Rid

2012-01-01

302

The National Register of Historic Places.  

ERIC Educational Resources Information Center

This journal contains articles and materials to help teachers instruct students about U.S. historical and cultural heritage. Articles and materials are: "The National Register of Historic Places Today" (C. D. Shull); "The (Economic) Value of National Register Listing" (D. D. Rypkema); "The National Register and Heritage Areas" (B. Barrett);…

Greenberg, Ronald M., Ed

2002-01-01

303

Place-based Mitigation of Climate Change  

E-print Network

Place-based Mitigation of Climate Change Robert Socolow Princeton University socolow should provide at least one wedge. #12;"The Wedge Model is the iPod of climate change: You fill/yr, 30 miles per gallon b) Fly 10,000 miles/yr c) Heat home Natural gas, average house, average climate d

304

Architectural Accessibility: Matching Places to People.  

ERIC Educational Resources Information Center

Accessibility requires consideration of the needs of various building occupants, and necessitates matching places to people, instead of requiring people to overcome barriers. Cost effective approaches to making campus facilities accessible, including mobility needs surveys and the utilization of handicapped consumers, are discussed. (Author/JMD)

Anderson, Richard W., Jr.; Coons, Maggie

1979-01-01

305

Women's Place, Revisited (NYT) 421 words  

E-print Network

Women's Place, Revisited (NYT) 421 words Published: January 19, 2006 The election on Sunday of Michelle Bachelet as Chile's president completes a three- continent long jump for women in politics. Ms strongman. On Monday, when Ellen Johnson Sirleaf was inaugurated as president of Liberia, she became Africa

Lopez-Carr, David

306

library.syr.edu Spaces and Places  

E-print Network

library.syr.edu #12;Spaces and Places Bird Library, the largest library on campus, welcomes over sciences, library administrative offices, the Special Collections Research Center, and the library café, Pages. Other library facilities include the Carnegie Library, the Geology Library in Heroy

McConnell, Terry

307

Places to Go: YouTube  

ERIC Educational Resources Information Center

Founded in 2005 by three former PayPal employees, YouTube has revolutionized the Internet, marking a change from the static Internet to the dynamic Internet. In this edition of Places to Go, Stephen Downes discusses how the rise of a ubiquitous media format--Flash video--has made YouTube's success possible and argues that Flash video has important…

Downes, Stephen

2008-01-01

308

Places Rated Almanac: Flawed but Pedagogically Useful.  

ERIC Educational Resources Information Center

Richard Boyer and David Savageau's book "Places Rated Almanac" is described, and ways the book can be used in secondary and college geography classes are discussed. The book rates the quality of the following aspects of urban life: climate and terrain, housing, health care, environment, crime, transportation, education, and recreation. (RM)

Bell, Thomas L.

1984-01-01

309

Teenagers in Public and Private Places.  

ERIC Educational Resources Information Center

In this paper the physical characteristics of community sites that are common gathering places for adolescents are described and recommendations are given for improving their use. It is suggested that there are some common factors in the society and in the organization of many towns and cities in the United States that contribute to the appearance…

Ladd, Florence C.

310

Indian Place Names in South Dakota.  

ERIC Educational Resources Information Center

A cursory examination of place names on a map of South Dakota does not reflect the important role that Indians have played in the state and their relation to the land framed by its borders. Only three towns with populations over 1,000 bear names that clearly come from Indian languages: Sioux Falls, Sisseton, and Yankton. The hostile relationship…

Gasque, Thomas J.

311

Place-pitch manipulations with cochlear implants  

PubMed Central

Pitch can be conveyed to cochlear implant (CI) listeners via both place of excitation and temporal cues. The transmission of place cues may be hampered by several factors including limitations on the insertion depth and number of implanted electrodes, and the broad current spread produced by monopolar stimulation. The following series of experiments investigate several methods to partially overcome these limitations. Experiment 1 compares two recently published techniques that aim to activate more apical fibers than produced by monopolar or bipolar stimulation of the most apical contacts. The first technique (phantom stimulation) manipulates the current spread by simultaneously stimulating two electrodes with opposite-polarity pulses of different amplitudes. The second technique manipulates the neural spread of excitation by using asymmetric pulses and exploiting the polarity-sensitive properties of auditory nerve fibers. The two techniques yielded similar results and were shown to produce lower place pitch percepts than stimulation of monopolar and bipolar symmetric pulses. Furthermore, combining these two techniques may be advantageous in a clinical setting. Experiment 2 proposes a novel method to create place pitches intermediate to those produced by physical electrodes by using charge-balanced asymmetric pulses in bipolar mode with different degrees of asymmetry. PMID:22423718

Macherey, Olivier; Carlyon, Robert P.

2012-01-01

312

How Are Community College Students Assessed and Placed in Developmental Math? Grounding Our Understanding in Reality  

ERIC Educational Resources Information Center

The study's main objective was to provide a detailed description of math Assessment and Placement (A&P) policies in the Los Angeles Community College District (LACCD). The study was focused on math because a larger proportion of students place into remedial math than remedial reading or English (Bailey, Jeong, & Cho, 2010; Parsad,…

Melguizo, Tatiana; Kosiewicz, Holly; Prather, George; Bos, Johannes

2014-01-01

313

Making Place for Clutter and Other Ideas LAUREL SWAN, ALEX S. TAYLOR, and RICHARD HARPER  

E-print Network

9 Making Place for Clutter and Other Ideas of Home LAUREL SWAN, ALEX S. TAYLOR, and RICHARD HARPER Brunel University, Microsoft Research In this article, we examine the containment of clutter in family informed study of home life are used to detail the ways in which families contain their clutter in bowls

Hunt, Galen

314

The European Solid Mechanics Conference will take place at the Convention Center Graz.  

E-print Network

Venue The European Solid Mechanics Conference will take place at the Convention Center Graz: Notification of acceptance: 8th European Solid Mechanics Conference July 9 -13, 2012 Graz, AUSTRIA www.esmc2012 will be organized on the free afternoon, and details will be posted on the conference homepage. 8th European Solid

315

Advanced solar concentrator: Preliminary and detailed design  

NASA Technical Reports Server (NTRS)

A single reflection point focusing two-axis tracking paraboloidal dish with a reflector aperture diameter of approximately 11 m has a reflective surface made up of 64 independent, optical quality gores. Each gore is a composite of a thin backsilvered mirror glass face sheet continuously bonded to a contoured substrate of lightweight, rigid cellular glass. The use of largely self-supporting gores allows a significant reduction in the weight of the steel support structure as compared to alternate design concepts. Primary emphasis in the preliminary design package for the low-cost, low-weight, mass producible concentrator was placed on the design of the higher cost subsystems. The outer gore element was sufficiently designed to allow fabrication of prototype gores.

Bell, D. M.; Maraschin, R. A.; Matsushita, M. T.; Erskine, D.; Carlton, R.; Jakovcevic, A.; Yasuda, A. K.

1981-01-01

316

Gigantic Cosmic Corkscrew Reveals New Details About Mysterious Microquasar  

NASA Astrophysics Data System (ADS)

Making an extra effort to image a faint, gigantic corkscrew traced by fast protons and electrons shot out from a mysterious microquasar paid off for a pair of astrophysicists who gained new insights into the beast's inner workings and also resolved a longstanding dispute over the object's distance. Microquasar SS 433 VLA Image of Microquasar SS 433 CREDIT: Blundell & Bowler, NRAO/AUI/NSF (Click on Image for Larger Version) The astrophysicists used the National Science Foundation's Very Large Array (VLA) radio telescope to capture the faintest details yet seen in the plasma jets emerging from the microquasar SS 433, an object once dubbed the "enigma of the century." As a result, they have changed scientists' understanding of the jets and settled the controversy over its distance "beyond all reasonable doubt," they said. SS 433 is a neutron star or black hole orbited by a "normal" companion star. The powerful gravity of the neutron star or black hole draws material from the stellar wind of its companion into an accretion disk of material tightly circling the dense central object prior to being pulled onto it. This disk propels jets of fast protons and electrons outward from its poles at about a quarter of the speed of light. The disk in SS 433 wobbles like a child's top, causing its jets to trace a corkscrew in the sky every 162 days. The new VLA study indicates that the speed of the ejected particles varies over time, contrary to the traditional model for SS 433. "We found that the actual speed varies between 24 percent to 28 percent of light speed, as opposed to staying constant," said Katherine Blundell, of the University of Oxford in the United Kingdom. "Amazingly, the jets going in both directions change their speeds simultaneously, producing identical speeds in both directions at any given time," Blundell added. Blundell worked with Michael Bowler, also of Oxford. The scientists' findings have been accepted by the Astrophysical Journal Letters. SS 433 New VLA Image of SS 433: Red-and-Blue Line Shows Path of Constant-Speed Jets. Note Poor Match of Path to Image. CREDIT: Blundell & Bowler, NRAO/AUI/NSF SS 433 Same Image, With Colored Beads Representing Particle Ejections at Different Speeds. Particle Path Now Matches. CREDIT: Blundell & Bowler, NRAO/AUI/NSF Click Here for Page of Full-Sized Graphics The new VLA image shows two full turns of the jets' corkscrew on both sides of the core. Analyzing the image showed that if material came from the core at a constant speed, the jet paths would not accurately match the details of the image. "By simulating ejections at varying speeds, we were able to produce an exact match to the observed structure," Blundell explained. The scientists first did their match to one of the jets. "We then were stunned to see that the varying speeds that matched the structure of one jet also exactly reproduced the other jet's path," Blundell said. Matching the speeds in the two jets reproduced the observed structure even allowing for the fact that, because one jet is moving more nearly away from us than the other, it takes light longer to reach us from it, she added. The astrophysicists speculate that the changes in ejection speed may be caused by changes in the rate at which material is transferred from the companion star onto the accretion disk. The detailed new VLA image also allowed the astrophysicists to determine that SS 433 is nearly 18,000 light-years distant from Earth. Earlier estimates had the object, in the constellation Aquila, as near as 10,000 light-years. An accurate distance, the scientists said, now allows them to better determine the age of the shell of debris blown out by the supernova explosion that created the dense, compact object in the microquasar. Knowing the distance accurately also allows them to measure the actual brightness of the microquasar's components, and this, they said, improves their understanding of the physical processes at work in the system. The breakthrough image was made us

2004-10-01

317

Large format CID x-ray image sensors  

NASA Astrophysics Data System (ADS)

A large format CID imager module capitalizes on CID large well capacity and radiation resistance to image dental x- rays. The model, which consists of the imager, conversion phosphor and ancillary electronics, is encapsulated in a 40 X 28 X 5 mm3 robust package that is lightproof, moisture-proof and meets FDA and RFI/EMI standards. Data exposure and readout is simple. The imager normally exists in an active reset mode until x-ray application automatically places the imager into a charge integration mode. Readout begins immediately upon completion of the x- ray exposure or manual application of an external trigger source. The imager returns to the reset mode once the data read out is complete. Pixels are arranged in an SVGA compatible 800H X 600V format. Each pixel is square and 38.5 microns/side. The imager is coated using a propriety phosphor deposition process that result in a limiting resolution of 9 LP/mm from an x-ray illumination source. Better than 2,000:1 dynamic range and shot-noise limited operation is achieved. Direct x-ray detection and attendant noise is minimized via the phosphor and epitaxial layer that lies beneath the pixel array. The imager/module architecture and electro-optical performance are described in detail here in.

Carbone, Joseph; Alam, Zulfiquar; Borman, Claudia; Czebiniak, Steven; Ziegler, H.

1998-04-01

318

Study of the detail content of Apollo orbital photography  

NASA Technical Reports Server (NTRS)

The results achieved during a study of the Detail Content of Apollo Orbital Photography are reported. The effect of residual motion smear or image reproduction processes upon the detail content of lunar surface imagery obtained from the orbiting command module are assessed. Data and conclusions obtained from the Apollo 8, 12, 14 and 15 missions are included. For the Apollo 8, 12 and 14 missions, the bracket-mounted Hasselblad camera had no mechanism internal to the camera for motion compensation. If the motion of the command module were left totally uncompensated, these photographs would exhibit a ground smear varying from 12 to 27 meters depending upon the focal length of the lens and the exposure time. During the photographic sequences motion compensation was attempted by firing the attitude control system of the spacecraft at a rate to compensate for the motion relative to the lunar surface. The residual smear occurring in selected frames of imagery was assessed using edge analyses methods to obtain and achieved modulation transfer function (MTF) which was compared to a baseline MTF.

Kinzly, R. E.

1972-01-01

319

Algorithmically generated rodent hepatic vascular trees in arbitrary detail.  

PubMed

Physiologically realistic geometric models of the vasculature in the liver are indispensable for modelling hepatic blood flow, the main connection between the liver and the organism. Current in vivo imaging techniques do not provide sufficiently detailed vascular trees for many simulation applications, so it is necessary to use algorithmic refinement methods. The method of Constrained Constructive Optimization (CCO) (Schreiner et al., 2006) is well suited for this purpose. Its results after calibration have been previously compared to experimentally acquired human vascular trees (Schwen and Preusser, 2012). The goal of this paper is to extend this calibration to the case of rodents (mice and rats), the most commonly used animal models in liver research. Based on in vivo and ex vivo micro-CT scans of rodent livers and their vasculature, we performed an analysis of various geometric features of the vascular trees. Starting from pruned versions of the original vascular trees, we applied the CCO procedure and compared these algorithmic results to the original vascular trees using a suitable similarity measure. The calibration of the postprocessing improved the algorithmic results compared to those obtained using standard CCO. In terms of angular features, the average similarity increased from 0.27 to 0.61, improving the total similarity from 0.28 to 0.40. Finally, we applied the calibrated algorithm to refine measured vascular trees to the (higher) level of detail desired for specific applications. Having successfully adapted the CCO algorithm to the rodent model organism, the resulting individual-specific refined hepatic vascular trees can now be used for advanced modeling involving, e.g., detailed blood flow simulations. PMID:25451523

Schwen, Lars Ole; Wei, Weiwei; Gremse, Felix; Ehling, Josef; Wang, Lei; Dahmen, Uta; Preusser, Tobias

2015-01-21

320

A meaningful expansion around detailed balance  

E-print Network

We consider Markovian dynamics modeling open mesoscopic systems which are driven away from detailed balance by a nonconservative force. A systematic expansion is obtained of the stationary distribution around an equilibrium reference, in orders of the nonequilibrium forcing. The first order around equilibrium has been known since the work of McLennan (1959), and involves the transient irreversible entropy flux. The expansion generalizes the McLennan formula to higher orders, complementing the entropy flux with the dynamical activity. The latter is more kinetic than thermodynamic and is a possible realization of Landauer's insight (1975) that, for nonequilibrium, the relative occupation of states also depends on the noise along possible escape routes. In that way nonlinear response around equilibrium can be meaningfully discussed in terms of two main quantities only, the entropy flux and the dynamical activity. The expansion makes mathematical sense as shown in the simplest cases from exponential ergodicity.

Matteo Colangeli; Christian Maes; Bram Wynants

2011-01-18

321

Generators of Detailed Balance Quantum Markov Semigroups  

E-print Network

For a quantum Markov semigroup $\\T$ on the algebra $\\B$ with a faithful invariant state $\\rho$, we can define an adjoint $\\widetilde{\\T}$ with respect to the scalar product determined by $\\rho$. In this paper, we solve the open problems of characterising adjoints $\\widetilde{\\T}$ that are also a quantum Markov semigroup and satisfy the detailed balance condition in terms of the operators $H,L_k$ in the Gorini Kossakowski Sudarshan Lindblad representation $\\Ll(x)=i[H,x] - {1/2}\\sum_k(L^*_kL_k x-2L^*_kxL_k + xL^*_kL_k)$ of the generator of $\\T$. We study the adjoint semigroup with respect to both scalar products $ = \\tr(\\rho a^* b)$ and $ = \\tr(\\rho^{1/2} a^* \\rho^{1/2}b)$.

Franco Fagnola; Veronica Umanita

2007-07-14

322

EVIDENCE FOR PHONETIC PROCESSING OF CUES TO PLACE OF ARTICULATION: PERCEIVED MANNER AFFECTS PERCEIVED PLACE  

E-print Network

EVIDENCE FOR PHONETIC PROCESSING OF CUES TO PLACE OF ARTICULATION: PERCEIVED MANNER AFFECTS of place of articulation involves phonetic processing, and could not be purely auditory. It is clear of the system. and speech- specific phonetic or phonological mechanisms at the output end where segments

323

"My Place": Exploring Children's Place-Related Identities through Reading and Writing  

ERIC Educational Resources Information Center

This paper considers how children perceive and represent their placed-related identities through reading and writing. It reports on the findings of an 18-month interdisciplinary project, based at Cambridge University Faculty of Education, which aimed to consider children's place-related identities through their engagement with, and creation…

Charlton, Emma; Cliff Hodges, Gabrielle; Pointon, Pam; Nikolajeva, Maria; Spring, Erin; Taylor, Liz; Wyse, Dominic

2014-01-01

324

"Knowing your Place in the World:" How Place and Culture Support and Obstruct Educational Aims  

ERIC Educational Resources Information Center

There is increasing international interest in learning outside the classroom; place-based education is one manifestation of this. In this article, some conceptualisations of place are considered and attention drawn to alignments with habitus at micro, meso and macro levels. I develop a concept of cultural density as an explanatory tool to theorise…

Waite, Sue

2013-01-01

325

"Our Place in History": Inspiring Place-Based Social History in Schools and Communities  

ERIC Educational Resources Information Center

This article describes a teacher development program that engages history and social studies teachers in making connections between learning and the well-being of places in which people actually live. "Our Place in History" is a three-year, federally-funded professional development institute for twenty teachers from diverse communities in…

Gruenewald, David A.; Koppelman, Nancy; Elam, Anna

2007-01-01

326

Improved Image Fusion Using Balanced Multiwavelets  

E-print Network

be discarded. Image fusion can take place at the signal, pixel, feature, transform, and symbol level. Fusion of the important image features such as edges in the source images. The fusion process will produce a fused imageImproved Image Fusion Using Balanced Multiwavelets Lahouari Ghouti, Ahmed Bouridane and Mohammad K

Ghouti, Lahouari

327

Multiple medical image ROI authentication using watermarking  

NASA Astrophysics Data System (ADS)

Medical images are now almost all gathered and stored in a digital representation for easy transmission and archiving. High resolution is mandatory for a detailed diagnosis, which requires accurately known location and density information regarding the important features of the image called the regions of interest (ROI). Such features may include non-displaced fractures or small tumors that can often be difficult to identify. A reduction in size by using compression is necessary for efficient transmission over a wireless link where remote diagnosis may be an only option in many cases. Despite rapid advances in lossy compression, most research in the compression of medical imagery specifies that the ROI must be conserved as much as possible or compressed with a lossless or near-lossless algorithm. To ensure diagnostic integrity of these crucial regions after transmission, a multiple watermarking technique has been developed which can be used to verify the integrity of the ROI prior to diagnosis. This has the benefit of assuring that incidental degradation has not affected any of the crucial regions. A strong focus is placed on the robustness of the watermarking technique to JPEG compression as well as the issue image file size and quality tradeoff. The most useful contribution in our work is assurance of ROI image content integrity after image files are subject to incidental degradation in these environments. This is made possible with extraction of DCT signature coefficients from the ROI and embedding multiply in the Region of Backgrounds (ROB).

Osborne, Dom; Rogers, Derek; Sorell, Matthew; Abbott, Derek

2005-02-01

328

Space Place Live! with Donya Douglas  

NSDL National Science Digital Library

This is an episode of the Space Place Live talk show. Learners will watch engineer, Donya Douglas, of NASA's Goddard Space Flight Center, talk about her job in designing ways to keep the three tiny Space Technology 5 spacecraft at the right operating temperature in space, without adding much to their mass or need for electrical power. Cartoon characters present their own 6-7 minute talk show live from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. Guests present a short science or technology concept, and also talk about their job, their hobbies, and how they got interested in a career in science or engineering.

329

Space Place Live! With Merav Opher  

NSDL National Science Digital Library

This is an episode of the Space Place Live talk show. Learners will watch NASA astrophysicist Merav Opher as she talks about her job studying the Sun, heliosphere, space weather, and solar wind. She also discusses NASA's Voyager missions and how they have reached the heliosheath and will soon leave our Solar System into the interstellar medium. Cartoon characters present their own brief talk show from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. Guests present a short science or technology concept, and also talk about their job, their hobbies, and how they got interested in a career in science or engineering.

330

Being there: the library as place*  

PubMed Central

The value of the library as place is examined in this Janet Doe Lecture. The lecture, which is intended to focus on the history or philosophy of health sciences librarianship, presents an overview of the library as a place in society from ancient times to the present. The impact of information technology and changes in the methods of scholarly publication from print to digital are addressed as well as the role of the library as the repository of the written historical record of cultures. Functions and services of libraries are discussed in light of the physical library facility of the future. Finally, librarians are asked to remember the enduring values of librarianship in planning libraries of the future. PMID:14762459

Weise, Frieda

2004-01-01

331

Forwardly-placed firearm fire control assembly  

DOEpatents

A firearm fire control assembly for disposition in a forwardly placed support-hand operative relationship within a firearm having a combination of a firing pin and a firearm hammer adapted to engage and fire a cartridge, a sear assembly to alternately engage and disengage the combination of the firearm hammer and firing pin, and a trigger assembly including a movable trigger mechanism that is operable to engage the sear assembly to cause the firearm hammer firing pin combination to fire the firearm, a fire control assembly including a fire control depression member and a fire control rod operably connected to the depression member, and being positioned in a forward disposition disposed within a forestock of the firearm, and the depression member adapted to be operably engaged and depressed by the user's conventional forwardly placed support hand to maneuver the fire control rod to provide firing control of the firing of the firearm.

Frickey, Steven J. (Rigby, ID)

2001-12-22

332

Shocking Detail of Superstar's Activity Revealed  

NASA Astrophysics Data System (ADS)

NASA's Chandra X-ray Observatory has imaged Eta Carinae and revealed a hot inner core around this mysterious superstar. The new X-ray observation shows three distinct structures: an outer, horseshoe shaped ring about two light years in diameter, a hot inner core about 3 light months in diameter, and a hot central source less than a light month in diameter which may contain the superstar. All three structures are thought to represent shock waves produced by matter rushing away from the superstar at supersonic speeds. The temperature of the shock-heated gas ranges from 60 million degrees Celsius in the central regions to 3 million degrees Celsius on the outer structure. An earlier image of Eta Carinae by the Hubble Space Telescope revealed two spectacular bubbles of gas expanding in opposite directions away from a central bright region at speeds in excess of a million miles per hour. The inner region visible in the Chandra image has never been resolved before, and appears to be associated with a central disk of high velocity gas rushing out at much higher speeds perpendicular to the bipolar optical nebula. "It is not what I expected," said Dr. Fred Seward of the Harvard-Smithsonian Center for Astrophysics. "I expected to see a strong point source with a little diffuse emission cloud around it. Instead, we see just the opposite- a bright cloud of diffuse emission, and much less radiation from the center." "The Chandra image contains some puzzles for existing ideas of how a star can produce such hot and intense X-rays," agreed Prof. Kris Davidson of the University of Minnesota. "In the most popular theory, X-rays are made by colliding gas streams from two stars so close together that they'd look like a point source to us. But what happens to gas streams that escape to farther distances? The extended hot stuff in the middle of the new image gives demanding new conditions for any theory to meet." Eta Carinae is one of the most enigmatic and intriguing objects in our galaxy. Between 1837 and 1856 it increased dramatically in brightness to become the brightest star in the sky except for Sirius, even though it is 7,500 light years away, more than eighty times the distance to Sirius. This "Great Eruption," as it is called, had an energy comparable to a supernova, yet did not destroy the star, which faded to become a dim star, invisible to the naked eye. Since 1940, Eta Carinae has begun to brighten again, becoming visible to the naked eye. Modern day observations of Eta Carinae have shown it to be the most luminous object known in our galaxy. It radiates at the rate of several million times that of the Sun. Most of the radiation is at infrared wavelengths, from dust in the bipolar nebula. Astronomers still do not know what lies at the heart of Eta Carinae. Most believe that it is powered by an extremely massive star that may be a hundred times as massive as the Sun. Such stars produce intense amounts of radiation that cause violent instabilities before they explode as a supernova. The Chandra X-ray image gives a glimpse deep into the nebula where the fastest material being thrown off by Eta Carinae is found. The outer ring provides evidence of another large explosion that occurred over a thousand years ago. Further Chandra observations of Eta Carinae are planned for the near future and should give astronomers deeper insight into this cryptic colossus. To follow Chandra's progress, visit the Chandra site at: http://chandra.harvard.edu AND http://chandra.nasa.gov NASA's Marshall Space Flight Center in Huntsville, AL, manages the Chandra program. TRW, Inc., Redondo Beach, CA, is the prime contractor for the spacecraft. The Smithsonian's Chandra X-ray Center controls science and flight operations from Cambridge, MA. This image will be available on NASA Video File which airs at noon, 3:00 p.m., 6:00 p.m., 9:00 p.m. and midnight Eastern Time. NASA Television is available on GE-2, transponder 9C at 85 degrees West longitude, with vertical polarization. Frequency is on 3880.0 megahertz, wi

1999-10-01

333

The place of anxiety in depressive symptomatology  

PubMed Central

1 In the same sample of 42 depressed inpatients, treated by a sequence of anxiolytic followed by antidepressant, total depression, anxiety and retardation scores are compared. 2 Results confirm that retarded patients are good responders to antidepressants. Non-retarded patients do not respond to antidepressants but respond partially to anxiolytics. 3 The respective place of retardation and anxiety in depression is discussed. PMID:6130778

Widlocher, D.; Lecrubier, Y.; Le Goc, Y.

1983-01-01

334

The Young Men of Marram Place  

ERIC Educational Resources Information Center

Bucky is 29 years old. Jesse is 27 is years old. Paul is 23 years old. They have lived together at Marram Place, a four-bedroom house, for over a year and have become best friends. Each works 20 hours per week in the community for his own spending money. After work, the guys walk, swim, work on computers, help with the housework, deliver a…

Johnston, Diana Armatage

2010-01-01

335

A pattern language for sacred secular places  

E-print Network

........................................................................... 88 18. The Piazza in Pistoia which also doubles as a market place on Saturday mornings .................................................. 90 19. The town of Seaside, Florida............................................................. 92 x... of Plato and, to a lesser degree in those of Aristotle. The first systematic account of this relationship however is credited to the French mathematician, philosopher and physiologist ReuniF009neuniF009 Descartes. Cartesian dualism (?I think, therefore I...

Joseph, Melanie Rachel

2006-08-16

336

Detailed slab and mantle structure beneath westernmost Mediterranean  

NASA Astrophysics Data System (ADS)

The geological evolution of the westernmost Mediterranean holds an important piece of the puzzle of how whole western Mediterranean evolved due to the convergence of Africa with Eurasia. Detailed upper mantle seismological images are crucial to test two controversial ideas about the dynamic process of the westernmost Mediterranean during the Cenozoic: slab rollback and lithosphere delamination. Recent tomographic images based on the dense seismic network in Spain and northern Morocco reveal a high-resolution continuous high-velocity anomaly to the transition zone depth under the Alboran domain [Bezada and Humphreys, 2013], which was used to support the slab roll back hypothesis for the westernmost Mediterranean tectonic evolution. However, the slab shape, width, and sharpness of its edges are not well resolved. Furthermore, the deep 2010 earthquake beneath Granada, Spain suggests possible oceanic crust material existing at ~ 600 km depth, which cannot be resolved by current tomography models. The study of multipathing and waveform broadening around sharp features has proven an efficient way to study those features. Here, we use both P and S waveform data from the PICASSO array to produce a detailed image. For the deep Granada earthquake, high frequency second arrivals and long coda after the P and S arrivals are shown on stations in the Rif Mountains of Morocco. By fitting both SH and P waveform data, we suggest that a low-velocity layer (LVL, 2 km thickness, ?Vs = -10%), possibly old oceanic crust, sits on top of the slab. The seismic waves travel through the LVL as guided waves preserving their high frequency energy. The strength of the second arrivals are very sensitive to the relative location between the deep earthquake and the LVL, which indicates the 2010 deep earthquake was most-likely within the subducted oceanic crust. Using both teleseismic and regional data, we conclude that the width of the sub-vertical slab is ~150 km, which is sharper than the tomography result. Further 3D modeling confirms that a sharp-sided slab structure is needed to explain the observed data. We also observe an abrupt travel time change between two nearby stations (PM21 and PM22) for earthquakes from the northeast, which indicates a sharp boundary existing between the Middle Atlas and Rif. This boundary was also observed in receiver functions and shear wave splitting studies [Miller and Becker, 2013]. Furthermore, introducing a low velocity zone across the whole lithosphere beneath the Middle Atlas, similar to interpretations from tomography, explains the waveform data well.

Sun, D.; Miller, M. S.; Bezada, M. J.; Humphreys, E.

2013-12-01

337

In-place filter testing summary  

SciTech Connect

The most common method of identifying particle penetration through a filter or adsorber system is through the performance of a periodic penetration test, i.e., in-place test or leak test using an aerosol or gas vapor to challenge the filter or adsorber system. The aerosol is usually formed by vaporization of a liquid, di-2(ethelhexyl sebacate) (DEHS), and allowed to condense to form liquid particles of a certain size and distribution. The gas vapor is formed by vaporization of Freon 11 liquid. The periodic penetration test, although conducted annually, can and has been demonstrated to show the beginning degradation of a filter or adsorber system. Other evidence of penetration can include detection of radiation downstream of the filter system or the existence of an unusually low pressure drop across the filter, i.e., torn filter, etc. However, these kinds of occurrences show up instantaneously and could release radioactive material to the atmosphere before the systems could be shut down. When a filter system fails the in--place test or is showing evidence of.filter or component degradation, corrective measures are put into place in order to return,the system back to its best operating condition. This report presents a summary of all filter tests.

Ortiz, J.P.; Garcia, E.D.; Ortega, J.M.

1988-03-01

338

Chord, Horizontal Tie Bar & Crossbracing Joint Details; Crossbracing Center ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Chord, Horizontal Tie Bar & Crossbracing Joint Details; Crossbracing Center Joint Detail; Chord, Panel Posts, Braces & Counterbrace Joint Detail - Brownsville Covered Bridge, Spanning East Fork Whitewater River (moved to Eagle Creek Park, Indianapolis), Brownsville, Union County, IN

339

Dual domain method for single image dehazing and enhancing  

Microsoft Academic Search

In this paper, we propose a novel method for improving the visibility of an image (with fog or haze), as well as the image’s details. The proposed method adjusts the global contrast in the spatial domain for dehazing fog or haze spread over images and then enhances the local contrast in the transform domain for reviving the details of images.

Dongin Shin; Kristofor Gibson; Wonha Kim; Truong Nguyen

2011-01-01

340

Description of Axial Detail for ROK Fuel  

SciTech Connect

For the purpose of NDA simulations of the ROK fuel assemblies, we have developed an axial burnup distribution to represent the pins themselves based on gamma scans of rods in the G23 assembly. For the purpose of modeling the G23 assembly (both at ORNL and LANL), the pin-by-pin burnup map as simulated by ROK is being assumed to represent the radial burnup distribution. However, both DA and NDA results indicate that this simulated estimate is not 100% correct. In particular, the burnup obtained from the axial gamma scan of 7 pins does not represent exactly the same 'average' pin burnup as the ROK simulation. Correction for this discrepancy is a goal of the well-characterized assembly task but will take time. For now, I have come up with a correlation for 26 axial points of the burnup as obtained by gamma scans of 7 different rods (C13, G01, G02, J11, K10, L02, and M04, neglecting K02 at this time) to the average burnup given by the simulation for each of the rods individually. The resulting fraction in each axial zone is then averaged for the 7 different rods so that it can represent every fuel pin in the assembly. The burnup in each of the 26 axial zones of rods in all ROK assemblies will then be directly adjusted using this fraction, which is given in Table 1. Note that the gamma scan data given by ROK for assembly G23 included a length of {approx}3686 mm, so the first 12 mm and the last 14 mm were ignored to give an actual rod length of {approx}366 cm. To represent assembly F02 in which no pin-by-pin burnup distribution is given by ROK, we must model it using infinitely-reflected geometry but can look at the effects of measuring in different axial zones by using intermediate burnup files (i.e. smaller burnups than 28 GWd/MTU) and determining which axial zone(s) each burnup represents. Details for assembly F02 are then given in Tables 2 and 3, which is given in Table 1 and has 44 total axial zones to represent the top meter in explicit detail in addition to the other 26 zones. Note that the MCNP files for F02 were created using the Monte Carlo burnup linkage code Monteburns, which saves MCNP input files with detailed compositions as a function of burnup. The 'intermediate burnup files' produced for F02 include a cooling time of 27 years. The axial location of 5 spacers was also included in the ROK F02 assembly in which each spacer contained a length of 3.81 cm. Note that due to the nature of Monteburns, which was run in a special fashion for this problem, the step number increments after the 27 year decay, so the second column of Table 2 refers to the step number that should be used in the Monteburns files.

Trellue, Holly R [Los Alamos National Laboratory; Galloway, Jack D [Los Alamos National Laboratory

2012-04-20

341

Fourier plane imaging microscopy  

NASA Astrophysics Data System (ADS)

We show how the image of an unresolved photonic crystal can be reconstructed using a single Fourier plane (FP) image obtained with a second camera that was added to a traditional compound microscope. We discuss how Fourier plane imaging microscopy is an application of a remarkable property of the obtained FP images: they contain more information about the photonic crystals than the images recorded by the camera commonly placed at the real plane of the microscope. We argue that the experimental results support the hypothesis that surface waves, contributing to enhanced resolution abilities, were optically excited in the studied photonic crystals.

Dominguez, Daniel; Alharbi, Nouf; Alhusain, Mdhaoui; Bernussi, Ayrton A.; Peralta, Luis Grave de

2014-09-01

342

Fourier plane imaging microscopy  

SciTech Connect

We show how the image of an unresolved photonic crystal can be reconstructed using a single Fourier plane (FP) image obtained with a second camera that was added to a traditional compound microscope. We discuss how Fourier plane imaging microscopy is an application of a remarkable property of the obtained FP images: they contain more information about the photonic crystals than the images recorded by the camera commonly placed at the real plane of the microscope. We argue that the experimental results support the hypothesis that surface waves, contributing to enhanced resolution abilities, were optically excited in the studied photonic crystals.

Dominguez, Daniel, E-mail: daniel.dominguez@ttu.edu; Peralta, Luis Grave de [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Alharbi, Nouf; Alhusain, Mdhaoui [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Bernussi, Ayrton A. [Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, Texas 79409 (United States)

2014-09-14

343

Animal Science Image Gallery  

NSDL National Science Digital Library

The National Agricultural Library, along with the USDA and the American Society of Animal Science are collaborators on this website of animal science images. The images, animations, and videos, which also have accompanying text, are intended for classroom and educational outreach. Additionally, the site also encourages the public to submit their own images relevant to animal science, and it also fully explains the process of selection, the criteria the image must meet to be suitable for classroom and educational outreach, and the copyright and use information for each submission. On the left side of the page are the categories of animals and topics included on the website. Some of the links include "Dairy Cattle", "Companion Animals", "Horses", "Poultry", "Genetics", "Reproduction", and "Nutrition". Although some of the categories have fewer images than others, such as Companion Animals, others such as "Nutrition" and "Horses" have over 100 images. For categories that do have images, the visitor can choose to view subcategories, or just view all the images in the category. Once you've chosen an image to view, you will initially see a thumbnail and a description of the image. If you click on "Image Details" at the bottom of each description, you will be privy to details such as the date created, image rights, how many times downloaded, and how many times viewed. Conveniently, you can download the image in different file and dimensional sizes to suit your needs.

2009-06-11

344

Observe one place at many scales  

NSDL National Science Digital Library

An animation that introduces scale with scalable views of the capitol building in Atlanta, Georgia. Scenes can be portrayed from distances of 0.1 to 10,000 miles. Six images accompany the animation and freeze views at 0.1, 1, 10, 100, 1000, and 10,000 miles above the capitol. It would be more helpful if the bar scale in images accompanying the animation were consistently left at the same size. The Flash animation can be paused and rewound to stress important points.

NASA/Goddard Space Flight Center Scientific Visualization Studio

345

site plan, floor plan, southeast and east elevations, detail showing ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

site plan, floor plan, southeast and east elevations, detail showing original front entrance, interior detail showing fireplace in elevation - Neiman House, 1930 Providence Road, Charlotte, Mecklenburg County, NC

346

Optoelectronic pH Meter: Further Details  

NASA Technical Reports Server (NTRS)

A collection of documents provides further detailed information about an optoelectronic instrument that measures the pH of an aqueous cell-culture medium to within 0.1 unit in the range from 6.5 to 7.5. The instrument at an earlier stage of development was reported in Optoelectronic Instrument Monitors pH in a Culture Medium (MSC-23107), NASA Tech Briefs, Vol. 28, No. 9 (September 2004), page 4a. To recapitulate: The instrument includes a quartz cuvette through which the medium flows as it is circulated through a bioreactor. The medium contains some phenol red, which is an organic pH-indicator dye. The cuvette sits between a light source and a photodetector. [The light source in the earlier version comprised red (625 nm) and green (558 nm) light-emitting diodes (LEDs); the light source in the present version comprises a single green- (560 nm)-or-red (623 nm) LED.] The red and green are repeatedly flashed in alternation. The responses of the photodiode to the green and red are processed electronically to obtain the ratio between the amounts of green and red light transmitted through the medium. The optical absorbance of the phenol red in the green light varies as a known function of pH. Hence, the pH of the medium can be calculated from the aforesaid ratio.

Jeevarajan, Antony S.; Anderson, Mejody M.; Macatangay, Ariel V.

2009-01-01

347

Detailed Chemical Kinetic Modeling of Cyclohexane Oxidation  

SciTech Connect

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of cyclohexane at both low and high temperatures. Reaction rate constant rules are developed for the low temperature combustion of cyclohexane. These rules can be used for in chemical kinetic mechanisms for other cycloalkanes. Since cyclohexane produces only one type of cyclohexyl radical, much of the low temperature chemistry of cyclohexane is described in terms of one potential energy diagram showing the reaction of cyclohexyl radical + O{sub 2} through five, six and seven membered ring transition states. The direct elimination of cyclohexene and HO{sub 2} from RO{sub 2} is included in the treatment using a modified rate constant of Cavallotti et al. Published and unpublished data from the Lille rapid compression machine, as well as jet-stirred reactor data are used to validate the mechanism. The effect of heat loss is included in the simulations, an improvement on previous studies on cyclohexane. Calculations indicated that the production of 1,2-epoxycyclohexane observed in the experiments can not be simulated based on the current understanding of low temperature chemistry. Possible 'alternative' H-atom isomerizations leading to different products from the parent O{sub 2}QOOH radical were included in the low temperature chemical kinetic mechanism and were found to play a significant role.

Silke, E J; Pitz, W J; Westbrook, C K; Ribaucour, M

2006-11-10

348

[The details of clinical examination of elders].  

PubMed

At present, the ever-increasing number of persons of elderly and senile age does not receive from health and social care agencies sufficient volume of health services and social care they require. This article reveals the essence of such a concept as the phenomenon of senile asthenia. It also describes the characteristic of the algorithm of the specialized geriatric examination of elderly patients, which includes not only traditional but also very important for an elderly person special part, in particular, balance and gait assessment, identification of nutritional status to objectify the syndrome of malnutrition, assessment of mental function, activity level of an elderly person, the state of movement, a detailed identification of the social features of life of an elderly person, the quality of his life. The application of this algorithm will significantly improve the quality of geriatric care provided through the objectification of the pathology in the elderly person and assessment of the volume of medical and social care he needs. PMID:24640696

Proshchaev, K I; Il'nitski?, A N; Krivetski?, V V; Varavina, L Iu; Kolpina, L V; Gorelik, S G; Fesenko, V V; Krivtsunov, A N

2013-01-01

349

[Hypothalamic hamartoma: detailed presentation of a case].  

PubMed

We describe a seven year old child with a hypothalamic hamartoma. Classical symptoms of hypothalamic hamartoma include gelastic epileptic laughter, precocious puberty, aggressiveness, and progressively worsening epilepsy. After a normal first few years of life, this case presents all these symptoms except the precocious puberty. He has a markedly morbid personality disorder: he assaults strangers and relatives, bites people, spits in their faces unpredictably, is coprolalic and coprophagic, has gelastic laughter, puts pencils, erasers, and other non-comestible objects in his mouth, chews and ingests them, has tics (plays noisily with his saliva, empty chewing, compulsive spitting) and is self-injurious. None of the medications attempted to date have been of any help. Medical prognosis is somber, and this case is difficult to institutionalize, the more "congenial" institutions being insufficiently equipped to protect him and the beneficiaries and staff from his aggressive behavior. MRI showed the typical profile of hypothalamic hamartoma, and the diagnosis was confirmed with partial resection. This case illustrates that a tiny lesion, the size of a small cherry, can have extremely morbid psychological consequences. Detailed neuropsychological evaluation, certain unusual electroencephalographic traits and neurosurgical issues are discussed. PMID:10546090

Daigneault, S; Braun, C M; Montes, J L

1999-01-01

350

Conceptual Distinctiveness Supports Detailed Visual Long-Term Memory for Real-World Objects  

ERIC Educational Resources Information Center

Humans have a massive capacity to store detailed information in visual long-term memory. The present studies explored the fidelity of these visual long-term memory representations and examined how conceptual and perceptual features of object categories support this capacity. Observers viewed 2,800 object images with a different number of exemplars…

Konkle, Talia; Brady, Timothy F.; Alvarez, George A.; Oliva, Aude

2010-01-01

351

Geometry Completion and Detail Generation by Texture Synthesis Minh X. Nguyen Xiaoru Yuan Baoquan Chen  

E-print Network

Geometry Completion and Detail Generation by Texture Synthesis Minh X. Nguyen Xiaoru Yuan Baoquan on existing geometry. The most novel feature of our pro- posed method is to transform the 3D geometry synthe then derive lo- cal geometry gradient images that encode intrinsic local geometry properties, which

Minnesota, University of

352

Energetic mapping of Ni catalysts by detailed kinetic modeling.  

PubMed

Temperature-programmed desorption (TPD) of CO has been performed on supported and unsupported nickel catalysts. The unsupported Ni catalyst consists of a Ni(14 13 13) single crystal which has been studied under ultrahigh vacuum conditions. The desorption energy for CO at low CO surface coverage was found to be 119 kJ/mol, and the binding energy of C to the Ni(111) surface of the crystal was 703 kJ/mol. The supported catalysts consist of nickel supported on hydrotalcite-like compounds with three different Mg2+/Al3+ ratios. The experimental results show that for the supported Ni catalysts TPD of CO leads to desorption of both CO and CO2, with the latter being dominant. Dissociation of CO takes place, and considerable amounts of residue C are left on the surface. The residue C is removed by temperature-programmed oxidation (TPO). The results show that a low Mg2+/Al3+ ratio in the hydrotalcite precursor seems to result in more steplike sites, kinks, and defects for carbon monoxide dissociation. A detailed kinetic modeling of the TPO results based on elementary reaction steps has been conducted to give an energetic map of supported Ni catalysts. Experimental results from the ideal Ni surface fit nicely with literature values, providing useful information for identifying active sites on supported Ni catalysts. PMID:16851230

Bjørgum, Erlend; Chen, De; Bakken, Mari Grande; Christensen, Kjersti Omdahl; Holmen, Anders; Lytken, Ole; Chorkendorff, Ib

2005-02-17

353

There's no place like home: Earth  

NSDL National Science Digital Library

This news story from NASA's Eyes on the Earth website highlights three short videos: "Majestic Planet," "Earth: The Water Planet," and "Frozen Earth." In these videos, images of the earth taken from satellites and space stations are accompanied by music, visualizations, and informational text.

2010-12-10

354

Distributed cognitive maps reflecting real distances between places and views in the human brain  

PubMed Central

Keeping oriented in the environment is a multifaceted ability that requires knowledge of at least three pieces of information: one’s own location (“place”) and orientation (“heading”) within the environment, and which location in the environment one is looking at (“view”). We used functional magnetic resonance imaging (fMRI) in humans to examine the neural signatures of these information. Participants were scanned while viewing snapshots which varied for place, view and heading within a virtual room. We observed adaptation effects, proportional to the physical distances between consecutive places and views, in scene-responsive (retrosplenial complex and parahippocampal gyrus), fronto-parietal and lateral occipital regions. Multivoxel pattern classification of signals in scene-responsive regions and in the hippocampus allowed supra-chance decoding of place, view and heading, and revealed the existence of map-like representations, where places and views closer in physical space entailed activity patterns more similar in neural representational space. The pattern of hippocampal activity reflected both view- and place-based distances, the pattern of parahippocampal activity preferentially discriminated between views, and the pattern of retrosplenial activity combined place and view information, while the fronto-parietal cortex only showed transient effects of changes in place, view, and heading. Our findings provide evidence for the presence of map-like spatial representations which reflect metric distances in terms of both one’s own and landmark locations. PMID:25309392

Sulpizio, Valentina; Committeri, Giorgia; Galati, Gaspare

2014-01-01

355

Increased Anatomical Detail by In Vitro MR Microscopy With a Modified Golgi Impregnation Method  

PubMed Central

Golgi impregnation is unique in its ability to display the dendritic trees and axons of large numbers of individual neurons by histology. Here we apply magnetic resonance microscopy to visualize the neuroanatomy of animal models by combining histologic fixation chemistry with paramagnetic contrast agents. Although there is some differential uptake of the standard small-molecular-weight contrast agents by different tissue types, detailed discrimination of tissue architecture in MR images does not approach that of standard histology. Our modified Golgi impregnation method significantly increases anatomic detail in magnetic resonance microscopy images. Fixed mouse brains were treated with a solution containing a paramagnetic contrast agent (gadoteridol) and potassium dichromate. Results demonstrate a specific contrast enhancement likely due to diamagnetic hexavalent chromium undergoing tissue specific reduction to paramagnetic trivalent chromium. This new method dramatically improves neuroanatomical contrast compared to conventional fixation, displaying detail approximating that of histologic specimens at low (4×) magnification. PMID:20432310

Zhang, Xiaowei; Bearer, Elaine L.; Perles-Barbacaru, Adriana T.; Jacobs, Russell E.

2010-01-01

356

Magnetic resonance imaging  

SciTech Connect

The authors present a review of magnetic resonance imaging. Many topics are explored from instrumentation, spectroscopy, blood flow and sodium imaging to detailed clinical applications such as the differential diagnosis of multiple sclerosis or adrenal adenoma. The emphasis throughout is on descriptions of normal multiplanar anatomy and pathology as displayed by MRI.

Stark, D.D.; Bradley, W.G. Jr.

1988-01-01

357

Local detailed balance: a microscopic derivation  

NASA Astrophysics Data System (ADS)

Thermal contact is the archetype of non-equilibrium processes driven by constant non-equilibrium constraints when the latter are enforced by reservoirs exchanging conserved microscopic quantities. At a mesoscopic scale only the energies of the macroscopic bodies are accessible together with the configurations of the contact system. We consider a class of models where the contact system, as well as macroscopic bodies, have a finite number of possible configurations. The global system, with only discrete degrees of freedom, has no microscopic Hamiltonian dynamics, but it is shown that, if the microscopic dynamics is assumed to be deterministic and ergodic and to conserve energy according to some specific pattern, and if the mesoscopic evolution of the global system is approximated by a Markov process as closely as possible, then the mesoscopic transition rates obey three constraints. In the limit where macroscopic bodies can be considered as reservoirs at thermodynamic equilibrium (but with different intensive parameters), the mesoscopic transition rates turn into transition rates for the contact system and the third constraint becomes local detailed balance; the latter is generically expressed in terms of the microscopic exchange entropy variation, namely the opposite of the variation of the thermodynamic entropy of the reservoir involved in a given microscopic jump of the contact system configuration. For a finite-time evolution after contact has been switched on, we derive a fluctuation relation for the joint probability of the heat amounts received from the various reservoirs. The generalization to systems exchanging energy, volume and matter with several reservoirs, with a possible conservative external force acting on the contact system, is given explicitly.

Bauer, M.; Cornu, F.

2015-01-01

358

Composite imaging method for histological image analysis.  

PubMed

A composite imaging method has been developed that enables the user to directly capture a composite image by one-image capturing. It was experimentally verified that the composite images of bright-field, dark-field, and phase-contrast images can be captured with an arbitrary composition ratio. The difference in pixel values between the captured composite image and the computer composite image was small. This imaging method is realized only by placing below the condenser a masking plate, which can easily be made using Neutral Density filters. Therefore, little additional time and cost are needed. The composite imaging method was applied for extracting Helicobacter pylori in microscopic images of HE-stained gastric histological sections. H. pylori is difficult to extract because the colors in H. pylori are similar to those in other areas. It is experimentally shown that a composite image of phase-contrast and dark-field images captured using the proposed method improves the accuracy for extracting H. pylori. PMID:24110455

Imai, Mizuho; Takei, Akane; Miyamoto, Keita; Takahashi, Masanobu; Nakano, Masayuki

2013-01-01

359

A&M. TAN607. Construction detail showing structural steel framework with reinforcing ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

A&M. TAN-607. Construction detail showing structural steel framework with reinforcing steel in place prior to pouring concrete for biparting doors between hot shop and special equipment service (SES) room. Facing north. Hot shop to left, SES room to right. slot for north half of door shows at upper left of view. Date: May 21, 1954. INEEL negative no. 10548 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

360

Stereoscopic full aperture imaging in nuclear medicine  

NASA Astrophysics Data System (ADS)

Images of planar scintigraphy and single photon emission computerized tomography (SPECT) used in nuclear medicine are often low quality. They usually appear to be blurred and noisy. This problem is due to the low spatial resolution and poor sensitivity of the acquisition technique with the gamma camera (GC). Other techniques, such as coded aperture imaging (CAI) reach higher spatial resolutions than GC. However, CAI is not frequently used for imaging in nuclear medicine, due to the decoding complexity of some images and the difficulty in controlling the noise magnitude. Summing up, the images obtained through GC are low quality and it is still difficult to implement CAI technique. A novel technique, full aperture Imaging (FAI), also uses gamma ray-encoding to obtain images, but the coding system and the method of images reconstruction are simpler than those used in CAI. In addition, FAI also reaches higher spatial resolution than GC. In this work, the principles of FAI technique and the method of images reconstruction are explained in detail. The FAI technique is tested by means of Monte Carlo simulations with filiform and spherical sources. Spatial resolution tests of GC versus FAI were performed using two different source-detector distances. First, simulations were made without interposing any material between the sources and the detector. Then, other more realistic simulations were made. In these, the sources were placed in the centre of a rectangular prismatic region, filled with water. A rigorous comparison was made between GC and FAI images of the linear filiform sources, by means of two methods: mean fluence profile graphs and correlation tests. Finally, three-dimensional capacity of FAI was tested with two spherical sources. The results show that FAI technique has greater sensitivity (>100 times) and greater spatial resolution (>2.6 times) than that of GC with LEHR collimator, in both cases, with and without attenuating material and long and short-distance configurations. The FAI decoding algorithm reconstructs simultaneously four different projections which are located in separate image fields on the detector plane, while GC produces only one projection per acquisition. Simulations have allowed comparison of both techniques under ideal identical conditions. Our results show it is possible to apply an extremely simple encoded imaging technique, and get three-dimensional radioactivity information for simplistic geometry sources. The results are promising enough to evaluate the possibility of future research with more complex sources typical of nuclear medicine imaging.

Strocovsky, Sergio G.; Otero, Dino

2011-06-01

361

Dynamic NMDAR-mediated properties of place cells during the object place memory task  

PubMed Central

N-methyl-D-aspartate receptors (NMDAR) in the hippocampus participate in encoding and recalling the location of objects in the environment, but the ensemble mechanisms by which NMDARs mediate these processes have not been completely elucidated. To address this issue, we examined the firing patterns of place cells in the dorsal CA1 area of the hippocampus of mice (n = 7) that performed an object place memory (OPM) task, consisting of familiarization (T1), sample (T2), and choice (T3) trials, after systemic injection of 3-[(±)2-carboxypiperazin-4yl]propyl-1-phosphate (CPP), a specific NMDAR antagonist. Place cell properties under CPP (CPP–PCs) were compared to those after control saline injection (SAL–PCs) in the same mice. We analyzed place cells across the OPM task to determine whether they signaled the introduction or movement of objects by NMDAR-mediated changes of their spatial coding. On T2, when two objects were first introduced to a familiar chamber, CPP–PCs and SAL–PCs showed stable, vanishing or moving place fields in addition to changes in spatial information (SI). These metrics were comparable between groups. Remarkably, previously inactive CPP–PCs (with place fields emerging de novo on T2) had significantly weaker SI increases than SAL–PCs. On T3, when one object was moved, CPP–PCs showed reduced center-of-mass (COM) shift of their place fields. Indeed, a subset of SAL–PCs with large COM shifts (>7 cm) was largely absent in the CPP condition. Notably, for SAL–PCs that exhibited COM shifts, those initially close to the moving object followed the trajectory of the object, whereas those far from the object did the opposite. Our results strongly suggest that the SI changes and COM shifts of place fields that occur during the OPM task reflect key dynamic properties that are mediated by NMDARs and might be responsible for binding object identity with location. PMID:24381547

Faust, Thomas W.; Robbiati, Sergio; Huerta, Tomás S.; Huerta, Patricio T.

2013-01-01

362

Dynamic NMDAR-mediated properties of place cells during the object place memory task.  

PubMed

N-methyl-D-aspartate receptors (NMDAR) in the hippocampus participate in encoding and recalling the location of objects in the environment, but the ensemble mechanisms by which NMDARs mediate these processes have not been completely elucidated. To address this issue, we examined the firing patterns of place cells in the dorsal CA1 area of the hippocampus of mice (n = 7) that performed an object place memory (OPM) task, consisting of familiarization (T1), sample (T2), and choice (T3) trials, after systemic injection of 3-[(±)2-carboxypiperazin-4yl]propyl-1-phosphate (CPP), a specific NMDAR antagonist. Place cell properties under CPP (CPP-PCs) were compared to those after control saline injection (SAL-PCs) in the same mice. We analyzed place cells across the OPM task to determine whether they signaled the introduction or movement of objects by NMDAR-mediated changes of their spatial coding. On T2, when two objects were first introduced to a familiar chamber, CPP-PCs and SAL-PCs showed stable, vanishing or moving place fields in addition to changes in spatial information (SI). These metrics were comparable between groups. Remarkably, previously inactive CPP-PCs (with place fields emerging de novo on T2) had significantly weaker SI increases than SAL-PCs. On T3, when one object was moved, CPP-PCs showed reduced center-of-mass (COM) shift of their place fields. Indeed, a subset of SAL-PCs with large COM shifts (>7 cm) was largely absent in the CPP condition. Notably, for SAL-PCs that exhibited COM shifts, those initially close to the moving object followed the trajectory of the object, whereas those far from the object did the opposite. Our results strongly suggest that the SI changes and COM shifts of place fields that occur during the OPM task reflect key dynamic properties that are mediated by NMDARs and might be responsible for binding object identity with location. PMID:24381547

Faust, Thomas W; Robbiati, Sergio; Huerta, Tomás S; Huerta, Patricio T

2013-01-01

363

Evidence for phonetic processing of cues to place of articulation: Perceived manner affects perceived place  

Microsoft Academic Search

Using stimuli that could be labeled either as stops [b,d] or as fricatives [f,v,?,ð], we found that, for a given acoustic\\u000a stimulus, perceived place of articulation was dependent on perceived manner. This effect appeared for modified natural syllables\\u000a with a free-identification task and for a synthetic transition continuum with a forced-choice identification task. Since perceived\\u000a place could be changed by

Guy Carden; Andrea Levitt; Peter W. Jusczyk; Amanda Walley

1981-01-01

364

Space Place: Make Asteroids You Can Eat  

NSDL National Science Digital Library

This hands-on, food preparation activity is designed to familiarize children with asteroids: what they are, where they orbit, how they formed, what they look like (making mashed potato mixture look like an asteroid), and why we care about them. Introduces NASA's Deep Space 1 mission that flew very close to Asteroid Braille. The Space Place is an educational NASA site for children and adults with activities and facts related to the exploration of spaceâpast, current, and future. Some activities are computer-interactive and many are real-world-interactive.

Jpl, Nasa

2011-01-01

365

30 CFR 56.18002 - Examination of working places.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Examination of working places. 56.18002 Section...56.18002 Examination of working places. (a) A competent...operator shall examine each working place at least once each shift for conditions which may adversely...

2011-07-01

366

30 CFR 56.18002 - Examination of working places.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Examination of working places. 56.18002 Section...56.18002 Examination of working places. (a) A competent...operator shall examine each working place at least once each shift for conditions which may adversely...

2010-07-01

367

30 CFR 57.18002 - Examination of working places.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Examination of working places. 57.18002 Section...57.18002 Examination of working places. (a) A competent...operator shall examine each working place at least once each shift for conditions which may adversely...

2010-07-01

368

30 CFR 57.18002 - Examination of working places.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Examination of working places. 57.18002 Section...57.18002 Examination of working places. (a) A competent...operator shall examine each working place at least once each shift for conditions which may adversely...

2011-07-01

369

Image use in field guides and identification keys: review and recommendations  

PubMed Central

Background and aims Although illustrations have played an important role in identification keys and guides since the 18th century, their use has varied widely. Some keys lack all illustrations, while others are heavily illustrated. Even within illustrated guides, the way in which images are used varies considerably. Here, we review image use in paper and electronic guides, and establish a set of best practices for image use in illustrated keys and guides. Scope Our review covers image use in both paper and electronic guides, though we only briefly cover apps for mobile devices. With this one exception, we cover the full range of guides, from those that consist only of species descriptions with no keys, to lavishly illustrated technical keys. Emphasis is placed on how images are used, not on the operation of the guides and key, which has been reviewed by others. We only deal with operation when it impacts image use. Main points Few illustrated keys or guides use images in optimal ways. Most include too few images to show taxonomic variation or variation in characters and character states. The use of multiple images allows easier taxon identification and facilitates the understanding of characters. Most images are usually not standardized, making comparison between images difficult. Although some electronic guides allow images to be enlarged, many do not. Conclusions The best keys and guides use standardized images, displayed at sizes that are easy to see and arranged in a standardized manner so that similar images can be compared across species. Illustrated keys and glossaries should contain multiple images for each character state so that the user can judge variation in the state. Photographic backgrounds should not distract from the subject and, where possible, should be of a standard colour. When used, drawings should be prepared by professional botanical illustrators, and clearly labelled. Electronic keys and guides should allow images to be enlarged so that their details can be seen. PMID:22476475

Leggett, Roxanne; Kirchoff, Bruce K.

2011-01-01

370

Commodification of Rural Places: A Narrative of Social Fields, Rural Development, and Football  

ERIC Educational Resources Information Center

One of the most significant recent elements of restructuring in rural areas is the transition from an economy based on agricultural production to an economy based on the countryside as a form of commodity. In this transition process, different narratives or images of an area are produced to promote villages and other places in the countryside as…

Floysand, Arnt; Jakobsen, Stig-Erik

2007-01-01

371

Vuillerme et al., Neuroscience 1 CAN A PLANTAR PRESSURE-BASED TONGUE-PLACED ELECTROTACTILE BIOFEEDBACK  

E-print Network

Vuillerme et al., Neuroscience 1 CAN A PLANTAR PRESSURE-BASED TONGUE-PLACED ELECTROTACTILE.vuillerme@imag.fr Article published in Neuroscience (2008) hal-00286015,version1-6Jun2008 Author manuscript, published in "Neuroscience / Neurosciences (2008)" DOI : 10.1016/j.neuroscience.2008.05.018 #12;Vuillerme et al

Boyer, Edmond

372

Breece Pancake and the Problem with Place: A West Virginia State of Mind.  

ERIC Educational Resources Information Center

Contemplates the meaning and misunderstanding of the works of West Virginia author, Breece Pancake, who took his own life at age 26. Pancake used a "realistic" representation of a place to create an effect in his fiction, not to develop a regional image. Contains comments from other Appalachian writers concerning Pancake's work. (KS)

Douglass, Thomas E.

1994-01-01

373

Panel Post & Diagonal Brace Joint Detail; Crossbracing Center Joint ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Panel Post & Diagonal Brace Joint Detail; Crossbracing Center Joint Detail; Chord, Panel Post, Tie Bar, & Diagonal Brace Joint Detail; Chord, Tie Bar, & Crossbracing Joint Detail - Medora Bridge, Spanning East Fork of White River at State Route 235, Medora, Jackson County, IN

374

5 CFR 352.306 - Length of details.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Length of details. 352.306 Section...Organizations § 352.306 Length of details. The total length of a detail or several details...must not exceed 5 consecutive years, except that when the...

2012-01-01

375

5 CFR 352.306 - Length of details.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Length of details. 352.306 Section...Organizations § 352.306 Length of details. The total length of a detail or several details...must not exceed 5 consecutive years, except that when the...

2013-01-01

376

5 CFR 352.306 - Length of details.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Length of details. 352.306 Section...Organizations § 352.306 Length of details. The total length of a detail or several details...must not exceed 5 consecutive years, except that when the...

2010-01-01

377

5 CFR 352.306 - Length of details.  

...2014-01-01 2014-01-01 false Length of details. 352.306 Section...Organizations § 352.306 Length of details. The total length of a detail or several details...must not exceed 5 consecutive years, except that when the...

2014-01-01

378

5 CFR 352.306 - Length of details.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Length of details. 352.306 Section...Organizations § 352.306 Length of details. The total length of a detail or several details...must not exceed 5 consecutive years, except that when the...

2011-01-01

379

The place and time of drugs.  

PubMed

'Context' is one of the most enduring analytical devices in social science accounts of alcohol and other drug (AOD) use, although its elaboration tends to emphasise macro-structural processes (like economic change, law enforcement, health policy, racism or stigma) at the expense of more finely-grained understandings of the place and time of consumption. Drawing on Gilles Deleuze's notion of the assemblage, and its reception in recent critical geographies of AOD use, I will characterise context as an assemblage of social, affective and material forces. Such a characterisation is not indifferent to the range of structural forces that are often understood to mediate AOD use. Rather, it is concerned to document how these forces actually participate in the modulations of consumption. The assemblage will thus be construed in ways that align context with the 'real conditions' (place and time) of drug use. I will develop this argument by way of a case study drawn from a recent qualitative study of the social contexts of methamphetamine use in Melbourne. My goal is to document the ways 'context' is produced in the activity of drug use, and how 'context' so constructed, comes to modulate this use. By contrasting traditional approaches to the analysis of context with methods borrowed from Deleuze, I aim to transcend structural understandings of context in order to clarify the active, local and contingent role of contexts in the mediation of what bodies do 'on' and 'with' drugs. PMID:24412676

Duff, Cameron

2014-05-01

380

The Influence Of Choice Of Fundamental Catalogue On Calculated Apparent Places Of Stars  

NASA Astrophysics Data System (ADS)

The paper has been inspired with changes of the concepts and definitions concerning celestial reference systems and frames approved and recommended by the resolutions of the General Assembly of the International Astronomical Union. The paper presents an extensive discussion of the results of computations of apparent places of stars based on the FK5 catalogue data and the contemporary Hipparcos and FK6 catalogue data. Detailed analysis of the effect of fundamental catalogue data i.e. the differences between the old and contemporary catalogue data on the values of calculated apparent places of stars was made. The effect of changes of precession-nutation model and definition of the celestial reference system was analysed too. The paper contains also an analysis of time variability of the calculated apparent places and specifies the problems of interpolation and presentation of calculated data in a tabulated form used in the astronomical almanacs. The paper completes detailed results and conclusions drawn from the analyses and computations performed. These are: a conclusion of presence of large, reaching some hundreds of mas, systematic differences between the FK5 and Hipparcos catalogue data; showing the relative rotation of about 20 mas between FK5 and HCRF catalogue celestial reference frames; and pointing out the catalogue errors as the major source of the errors of calculated apparent places. Still, the switch from the FK5 to Hipparcos catalogue data and from FK5 to HCRF catalogue celestial reference frame gives an improvement in calculated apparent places accuracy by an order of magnitude.

Sekowski, M. S.

2006-08-01

381

The place for performance in the digital holographic space  

NASA Astrophysics Data System (ADS)

In this series of digital art holograms and lenticulars, we are examining different kinds of movement inside the digital holographic space explored by Elizabeth Sandford-Richardson, a visual performance artist. During the process of capturing the image, we used the HoloCam Portable Light System, equipped with Canon and Nikon cameras positioned at different heights and angles, in order to improve the rendering of the holographic space. Based on the "Performativity of Performance Documentation" a notion introduced by Philip Auslanderi we revisit some authors that have been working in the "theatrical" practise, mainly in photography, adding the possibility of movement in 3D space. We must realise that the movement of the viewer in front of a digital holographic image creates the performance that he/she is looking at. We should consider the physical space, outside the hologram, and this kind of "performance acts", also part of the work. In summary, we propose a reflection on the digital holographic space, time, movement and its place in contemporary art.

Azevedo, Isabel; Richardson, Martin; Sandford-Richardson, Elizabeth; Bernardo, Luis Miguel; Crespo, Helder

2014-02-01

382

Our Place in Space: The Journey Begins  

NSDL National Science Digital Library

This is an interactive feature in which in which younger students explore space. After an introduction by astronomer Neil de Grasse Tyson, director of the Hayden Planetarium, they will follow a series of links that introduce various topics in astronomy: gravity; the planet Mars; our sun; our galaxy (the Milky Way); and the origin of the universe (the Big Bang). The feature concludes with a game in which students try to match images of astronomical objects with their descriptions.

383

Impregnating unconsolidated pyroclastic sequences: A tool for detailed facies analysis  

NASA Astrophysics Data System (ADS)

The interpretation of volcanic eruptions is usually derived from direct observation and the thorough analysis of the deposits. Processes in vent-proximal areas are usually not directly accessible or likely to be obscured. Hence, our understanding of proximal deposits is often limited as they were produced by the simultaneous events stemming from primary eruptive, transportative, and meteorological conditions. Here we present a method that permits for a direct and detailed quasi in-situ investigation of loose pyroclastic units that are usually analysed in the laboratory for their 1) grain-size distribution, 2) componentry, and 3) grain morphology. As the clast assembly is altered during sampling, the genesis of a stratigraphic unit and the relative importance of the above mentioned deposit characteristics is hard to achieve. In an attempt to overcome the possible loss of information during conventional sampling techniques, we impregnated the cleaned surfaces of proximal, unconsolidated units of the 1957-58 Capelinhos eruption on Faial, Azores. During this basaltic, emergent eruption, fluxes in magma rise rate led to a repeated build-up and collapse of tuff cones and consequently to a shift between phreatomagmatic and magmatic eruptive style. The deposits are a succession of generally parallel bedded, cm- to dm-thick layers with a predominantly ashy matrix. The lapilli content is varying gradually; the content of bombs is enriched in discrete layers without clear bomb sags. The sample areas have been cleaned and impregnated with a two-component glue (EPOTEK 301). For approx. 10 * 10 cm, a volume of mixed glue of 20 ml was required. This low-viscosity, transparent glue allowed for an easy application on the target area by means of a syringe and permeated the deposit as deep as 5 mm. After > 24 h, the glue was sufficiently dry to enable the sample to be laid open. This impregnation method renders it possible to cut and polish the sample and investigate grain-size distribution, componentry, and grain morphology in situ in a 2D-plane. In a first step, the sample surface has been scanned and analysed by means of image analysis software (Image J). After that, selected areas were investigated through thin section analysis. We were able to define depositional units in the (sub)-mm scale and the show the varying relative importance of 1) eruptive style, 2) transportation mode, and 3) the influence of wind and (air) humidity. The presented method is an easy and efficient tool for a detailed stratigraphic investigation of unconsolidated pyroclastic units.

Klapper, D.; Kueppers, U.; Castro, J. M.

2009-12-01

384

Impregnating unconsolidated pyroclastic sequences: A tool for detailed facies analysis  

NASA Astrophysics Data System (ADS)

The interpretation of volcanic eruptions is usually derived from direct observation and the thorough analysis of the deposits. Processes in vent-proximal areas are usually not directly accessible or likely to be obscured. Hence, our understanding of proximal deposits is often limited as they were produced by the simultaneous events stemming from primary eruptive, transportative, and meteorological conditions. Here we present a method that permits for a direct and detailed quasi in-situ investigation of loose pyroclastic units that are usually analysed in the laboratory for their 1) grain-size distribution, 2) componentry, and 3) grain morphology. As the clast assembly is altered during sampling, the genesis of a stratigraphic unit and the relative importance of the above mentioned deposit characteristics is hard to achieve. In an attempt to overcome the possible loss of information during conventional sampling techniques, we impregnated the cleaned surfaces of proximal, unconsolidated units of the 1957-58 Capelinhos eruption on Faial, Azores. During this basaltic, emergent eruption, fluxes in magma rise rate led to a repeated build-up and collapse of tuff cones and consequently to a shift between phreatomagmatic and magmatic eruptive style. The deposits are a succession of generally parallel bedded, cm- to dm-thick layers with a predominantly ashy matrix. The lapilli content is varying gradually; the content of bombs is enriched in discrete layers without clear bomb sags. The sample areas have been cleaned and impregnated with two-component glue (EPOTEK 301). For approx. 10 * 10 cm, a volume of mixed glue of 20 ml was required. Using a syringe, this low-viscosity, transparent glue could be easily applied on the target area. We found that the glue permeated the deposit as deep as 5 mm. After > 24 h, the glue was sufficiently dry to enable the sample to be laid open. This impregnation method renders it possible to cut and polish the sample and investigate grain-size distribution, componentry, and grain morphology in situ in a 2D-plane. In a first step, the sample surface has been scanned and analysed by means of image analysis software (Image J). After that, selected areas were investigated through thin section analysis. We were able to define depositional units in the (sub)-mm scale and the show the varying relative importance of 1) eruptive style, 2) transportation mode, and 3) the influence of wind and (air) humidity. The presented method is an easy and efficient tool for a detailed stratigraphic investigation of unconsolidated pyroclastic units.

Klapper, Daniel; Kueppers, Ulrich; Castro, Jon M.; Pacheco, Jose M. R.; Dingwell, Donald B.

2010-05-01

385

A detailed comparison of backpropagation neural network and maximum-likelihood classifiers for urban land use classification  

Microsoft Academic Search

A detailed comparison of the backpropagation neural network and maximum-likelihood classifiers for urban land use classification is presented. Landsat Thematic Mapper images of Tucson, Arizona, and Oakland, California, were used for this comparison. For the Tucson image, the percentage of matching pixels in the two classification maps was only 64.5%, while for the Oakland image it was 83.3%. Although the

Justin D. Paola; Robert A. Schowengerdt

1995-01-01

386

Devil in the details? Developmental dyslexia and visual long-term memory for details  

PubMed Central

Cognitive theories on causes of developmental dyslexia can be divided into language-specific and general accounts. While the former assume that words are special in that associated processing problems are rooted in language-related cognition (e.g., phonology) deficits, the latter propose that dyslexia is rather rooted in a general impairment of cognitive (e.g., visual and/or auditory) processing streams. In the present study, we examined to what extent dyslexia (typically characterized by poor orthographic representations) may be associated with a general deficit in visual long-term memory (LTM) for details. We compared object- and detail-related visual LTM performance (and phonological skills) between dyslexic primary school children and IQ-, age-, and gender-matched controls. The results revealed that while the overall amount of LTM errors was comparable between groups, dyslexic children exhibited a greater portion of detail-related errors. The results suggest that not only phonological, but also general visual resolution deficits in LTM may play an important role in developmental dyslexia. PMID:25071656

Huestegge, Lynn; Rohrßen, Julia; van Ermingen-Marbach, Muna; Pape-Neumann, Julia; Heim, Stefan

2014-01-01

387

Weighted Guided Image Filtering.  

PubMed

It is known that local filtering-based edge-preserving smoothing techniques suffer from halo artifacts. In this paper, a weighted guided image filter (WGIF) is introduced by incorporating an edge-aware weighting into an existing guided image filter (GIF) to address the problem. The WGIF inherits advantages of both global and local smoothing filters in the sense that: 1) the complexity of the WGIF is O(N) for an image with N pixels, which is same as the GIF and 2) the WGIF can avoid halo artifacts like the existing global smoothing filters. The WGIF is applied for single image detail enhancement, single image haze removal, and fusion of differently exposed images. Experimental results show that the resultant algorithms produce images with better visual quality and at the same time halo artifacts can be reduced/avoided from appearing in the final images with negligible increment on running times. PMID:25415986

Li, Zhengguo; Zheng, Jinghong; Zhu, Zijian; Yao, Wei; Wu, Shiqian

2015-01-01

388

Scalable, Multithreaded, Partially-in-Place Sorting  

SciTech Connect

A recent trend in hardware development is producing computing systems that are stretching the number of cores and size of shared-memory beyond where most fundamental serial algorithms perform well. The expectation is that this trend will continue. So it makes sense to rethink our fundamental algorithms such as sorting. There are many situations where data that needs to be sorted will actually fit into the shared memory so applications could benefit from an efficient parallel sorting algorithm. When sorting large data (at least hundreds of Gigabytes) in a single shared memory, there are two factors that affect the algorithm choice. First, does the algorithm sort in-place? And second, does the algorithm scale well beyond tens of threads? Surprisingly, existing algorithms posses either one of these factors, but not both. We present an approach that gracefully degrades in performance as the amount of available working memory decreases relative to the size of the input.

Haglin, David J.; Adolf, Robert D.; Mackey, Greg E.

2013-05-20

389

SeaWinds Global Coverage with Detail of Hurricane Floyd  

NASA Technical Reports Server (NTRS)

The distribution of ocean surface winds over the Atlantic Ocean, based on September 1999 data from NASA's SeaWinds instrument on the QuikScat satellite, shows wind direction (white streamlines) at a resolution of 25 kilometers (15.5 miles), superimposed on the color image indicating wind speed.

Over the ocean, the strong (seen in violet) trade winds blow steadily from the cooler subtropical oceans to warm waters just north of the equator. The air rises over these warm waters and sinks in the subtropics at the horse latitudes. Low wind speeds are indicated in blue. In the mid-latitudes, the high vorticity caused by the rotation of the Earth generates the spirals of weather systems. The North Atlantic is dominated by a high-pressure system, whose anti-cyclonic (clockwise) flow creates strong winds blowing parallel to the coast of Spain and Morocco. This creates strong ocean upwelling and cold temperature. Hurricane Floyd, with its high winds (yellow), is clearly visible west of the Bahamas. Tropical depression Gert is seen as it was forming in the tropical mid-Atlantic (as an anti-clockwise spiral); it later developed into a full-blown hurricane.

Because the atmosphere is largely transparent to microwaves, SeaWinds is able to cover 93 percent of the global oceans, under both clear and cloudy conditions, in a single day, with the capability of a synoptic view of the ocean. The high resolution of the data also gives detailed description of small and intense weather systems, like Hurricane Floyd. The image in the insert is based on data specially produced at 12.5 kilometers (7.7 miles). In the insert, white arrows of wind vector are imposed on the color image of wind speed. The insert represents a 3-degree area occupied by Hurricane Floyd. After these data were acquired, Hurricane Floyd turned north. Its strength and proximity to the Atlantic coast of the U.S. caused the largest evacuation of citizens in U.S. history. Its landfall on September 16, 1999 resulted in severe flooding and devastation in the Carolinas. The high-resolution SeaWinds data provided an opportunity to monitor and study this hurricane.

NASA's Earth Science Enterprise is a long-term research and technology program designed to examine Earth's land, oceans, atmosphere, ice and life as a total integrated system. JPL is a division of the California Institute of Technology, Pasadena, CA.

1999-01-01

390

Oncogenic osteomalacia: strange tumours in strange places.  

PubMed Central

Two patients presented with hypophosphataemic osteomalacia and were subsequently found to have small tumours unusual histopathology and location causing the osteomalacia. Each tumour was found after an intensive search for occult masses. Studies of vitamin D metabolism and renal tubular function before and after surgery yielded further insight into the pathophysiology of oncogenic osteomalacia. These cases demonstrate that microscopic quantities of tumour are capable of causing the syndrome and further illustrate the high index of suspicion often necessary to locate causative tumours in patients with hypophosphataemic osteomalacia. Images Figure 1 Figure 2 Figure 3 Figure 4 PMID:4022870

Weiss, D.; Bar, R. S.; Weidner, N.; Wener, M.; Lee, F.

1985-01-01

391

PAVEL MRAZEK CV 03/2005 Personal details  

E-print Network

Transactions on Medical Imaging, Signal Processing, Computational Statistics & Data Analysis, International University, Germany research topics: relations between nonlinear filters in digital image processing 2003, DAGM 2003, VLSM 2003, and for the journals IEEE Transactions on Image Processing, IEEE

392

Advances in vascular imaging.  

PubMed

Advances in vascular surgery have mirrored advances in diagnostic imaging. Indeed, the endovascular revolution has been made possible largely by advances in computed tomography, magnetic resonance imaging, and vascular ultrasound. As technology allows better noninvasive vascular diagnosis, conventional angiography, once the gold standard for the diagnosis of vascular disease, is now reserved largely for intervention. This article discusses the current state of vascular imaging. Specific emphasis is placed on the comparative clinical utility of different imaging modalities in the detection and management of vascular disease. PMID:17936471

Perry, Jason T; Statler, John D

2007-10-01

393

Poland, Albania place acreage on auction block  

SciTech Connect

Poland and Albania, respectively the first and last European countries to emerge from Communist rule, have unveiled bidding rounds for oil and gas projects. This paper reports that the goal is to encourage foreign investment in exploration and development. Poland's ministry of Environmental Protection, Natural Resources and Forestry, Warsaw, announced the schedule for its first bidding round for coalbed methane exploration licenses. Site is the Upper Silesian coal basin. Oil and gas companies were invited to submit proposals by Oct. 1 to develop what the ministry says is one of the world's most commercially viable coalbed methane resource. Five data packages are available covering 11 blocks. Packages cost $20,000 each or in combinations as much as $70,000 for all five. They include geological data, maps, gas transmission infrastructure details, drilling data, and results of coalbed methane studies. A bid is eligible only if the bidder has bought the relevant data package.

Not Available

1992-07-20

394

Collect Britain: Putting History in Place  

NSDL National Science Digital Library

While the British Museum already has a number of online digital archives, it appears to be on the way to surpass its prodigious online collections with the Collect Britain Web site. The digitization project (which went online in May 2003) is the largest to date, as it contains over 100,000 images and sounds culled from the museum's holdings. The homepage has three main sections: Collections, Virtual Exhibitions, and Themed Tours. The Collections section contains 14 separate collections (all of which are scheduled to be online by early 2004), covering such topics as street maps, images of Victorian Britain, illustrated sheet music for piano, and 150 hours of rare early wax cylinder recordings dating from 1898 to 1941. Currently, the Virtual Exhibitions area has one fine exhibit, Literary Landscapes, that explores the regional setting and context from which various English authors derived their primary inspiration. Here visitors can learn about Geoffrey Chaucer's Kent, the Lake District that was much loved by Wordsworth, and of course, Sir Walter Scott's Highlands. Finally, the Themed Tours section currently allows visitors to take a multimedia tour of London's old East End. If visitors wish to be informed of the site's progress, they have the opportunity to sign up to receive email updates as well.

395

Image processing and recognition for biological images  

PubMed Central

This paper reviews image processing and pattern recognition techniques, which will be useful to analyze bioimages. Although this paper does not provide their technical details, it will be possible to grasp their main tasks and typical tools to handle the tasks. Image processing is a large research area to improve the visibility of an input image and acquire some valuable information from it. As the main tasks of image processing, this paper introduces gray-level transformation, binarization, image filtering, image segmentation, visual object tracking, optical flow and image registration. Image pattern recognition is the technique to classify an input image into one of the predefined classes and also has a large research area. This paper overviews its two main modules, that is, feature extraction module and classification module. Throughout the paper, it will be emphasized that bioimage is a very difficult target for even state-of-the-art image processing and pattern recognition techniques due to noises, deformations, etc. This paper is expected to be one tutorial guide to bridge biology and image processing researchers for their further collaboration to tackle such a difficult target. PMID:23560739

Uchida, Seiichi

2013-01-01

396

Emergent Semantics through Interaction in Image Databases  

Microsoft Academic Search

In this paper we discuss briefly some aspects of image semantics and the role that it plays for the design of Image Databases. We argue that images don't have an intrinsic meaning, but that they are endowed with a meaning by placing them in the context of other images and by the user interaction. From this observation, we conclude that

Simone Santini; Amarnath Gupta; Ramesh Jain

2001-01-01

397

Sacred Place: An Interdisciplinary Approach for the Social Science  

Microsoft Academic Search

\\u000a This chapter presents a model of sacred place and sacred place-making that may contribute to the social science literatures\\u000a on place, spirituality, and health in two ways: (1) attending to the embodied and emplaced nature of religious beliefs and\\u000a spiritual practices and (b) exploring how sacred places may directly and indirectly affect human well-being. Sacred place\\u000a is conceptualized in relation

Jennifer Abe

398

An Approach of Image Fusion Based on General Image Quality Evaluation  

Microsoft Academic Search

The paper introduces a new and simple method of multi-sensor image fusion which is based on an image fusion quality evaluation index with subjectivity and objectivity combined the application of wavelet transform in image fusion, a new image fusion strategy based on pixel level is used, it overcomes the disadvantage of losing easily image details of simple fusion method. The

Tian Ya-fei; Qin Yun-xia; Yang Jia-yuan; Guo Ai-ping

2009-01-01

399

Natural breeding places of phlebotomine sandflies.  

PubMed

Methods of finding larvae and pupae of phlebotomine sandflies (Diptera: Psychodidae) are described and the known types of breeding sites used by sandflies are listed. Three ways of detecting sandfly breeding places are the use of emergence traps placed over potential sources to catch newly emerged adult sandflies; flotation of larvae and pupae from soil, etc., and desiccation of media to drive out the larvae. Even so, remarkably little information is available on the ecology of the developmental stages of sandflies, despite their importance as vectors of Leishmania, Bartonella and phleboviruses affecting humans and other vertebrates in warmers parts of the world. Regarding the proven or suspected vectors of leishmaniases, information on breeding sites is available for only 15 out of 29 species of sandflies involved in the Old World and 12 out of 44 species of sandflies involved in the Americas, representing approximately 3% of the known species of Phlebotominae. Ecotopes occupied by immature phlebotomines are usually organically rich moist soils, such as the rain forest floor (Lutzomyia intermedia, Lu. umbratilis, Lu. whitmani in the Amazon; Lu. gomezi, Lu. panamensis, Lu. trapidoi in Panama), or contaminated soil of animal shelters (Lu. longipalpis s.l. in South America, Phlebotomus argentipes in India; P. chinensis in China; P. ariasi, P. perfiliewi, P. perniciosus in Europe). Developmental stages of some species (P. langeroni and P. martini in Africa; P. papatasi in Eurasia; Lu. longipalpis s.l. in South America), have been found in a wide range of ecotopes, and many species of sandflies employ rodent burrows as breeding sites, although the importance of this niche is unclear. Larvae of some phlebotomines have been found in what appear to be specialized niches such as Lu. ovallesi on buttress roots of trees in Panama; P. celiae in termite hills in Kenya; P. longipes and P. pedifer in caves and among rocks in East Africa. Old World species found as immatures in the earthen floor of human habitations include P. argentipes, P. chinensis, P. martini and P. papatasi. Much more information on sandfly breeding sites is required to facilitate their control by source reduction. PMID:15009450

Feliciangeli, M D

2004-03-01

400

Children's (Pediatric) Abdominal Ultrasound Imaging  

MedlinePLUS

... waves. Ultrasound imaging, also called ultrasound scanning or sonography , involves the use of a small transducer (probe) and ultrasound gel placed directly on the skin. High-frequency sound waves are transmitted from the ...

401

DISTRIBUTION OF AEROSOLS IN MOUSE LOBES BY FLUORESCENT IMAGING  

PubMed Central

Better methods are needed to quantify the distribution of drug among the airways of the lungs of small animals to facilitate the development of agents that can target specific airways. Mice were exposed to aerosols of aluminum phthalocyanine tetrasulfonic acid (AlPCS) that ranged in concentration and size (0.2-2.8 ?m). The trachea and lobes were removed and placed between glass slides, and fluorescent images were obtained at two different compression thicknesses. The intensity, normalized by the area, exposure time, and thickness, was then plotted as a function of compression thickness, from which the concentration and attenuation coefficient were estimated for each lobe and then for each pixel of the image. The latter was then used to generate an image reflective of the concentration. The lobe volume, concentration, and tissue attenuation of AlPCS was consistent among the lobes. The deposition fraction increased with decreasing particle size. The network of lines in the concentration image indicated that connective tissue has a lower concentration. The central airways were clearly evident in the images exposed to the very small and large aerosols. This approach provides a rapid, economical means to obtain high resolution images of mouse lungs from which detailed analysis of the distribution of deposited aerosol particles can be obtained. PMID:22306042

Yi, Dandan; Naqwi, Amir; Panoskaltsis-Mortari, Angela; Wiedmann, Timothy Scott

2012-01-01

402

Understanding near-Earth asteroids: Is it in the details?  

NASA Astrophysics Data System (ADS)

Studies of near-Earth asteroids (NEAs) are important to our understanding of meteorites, impact probabilities for terrestrial planets, dynamics of the main belt, and asteroid surface processes. Crucial to these investigations is knowledge of the NEA size and albedo distributions and regolith properties; however, as we sample ever-smaller NEAs, we see an increasing variation in these physical properties. A notable diversity of shapes, surface features, and rotation states have been revealed by radar observations, whereas infrared observations have shown a range of spectral types and thermal characteristics. Although spacecraft missions will yield details for a few objects, and space-based surveys will result in important overviews, only ground-based observations can provide an overall understanding of the NEA population as a whole owing to the range of observing conditions (e.g., wavelength coverage, phase angle, heliocentric distance) they provide. Radiometry is commonly used to infer both size and thermal properties, but necessary assumptions about the regolith, which controls thermal and (often) radar reflectance properties, can be especially dangerous for small NEAs because surface properties change as a function of size and irregular shapes play an increasingly important role. Our investigation combines thermal measurements with radar delay-Doppler imaging to better understand the regolith properties of different types of NEAs through detailed thermophysical modeling. Over the past five years, we have measured the spectra of 53 NEAs at different phase angles and rotation phases to see how the inferred thermal properties depend on the detailed shape. The observations were carried out with SpeX at the NASA IRTF (0.8--4 microns) [1], which allows us to measure both the reflected and thermal contributions to the overall spectrum, thereby providing for a greater degree of self- consistency in the thermal modeling than infrared observations alone. The observed objects span a variety of spectral types: S-complex, C-complex, and X-complex, including two high-albedo (Tholen E-type) and two low-albedo (Tholen P-type) asteroids. Most of these objects were also observed with the Arecibo planetary radar. Although the quality of the radar data varies, for many of the objects we can determine the pole, spin state, and surface features from shape modeling without assuming a convex surface [e.g., 2,3]. These radar objects span a gamut of types, from nearly spherical to elongated or irregular shapes, single bodies to contact binaries to multiple-body systems, slow to fast rotators, and sizes from a few hundred meters to a few kilometers. To study the properties of these NEAs, we have developed a thermophysical model, ''SHERMAN'', that uses the detailed shape to simulate multiple observations of an NEA at different viewing geometries, which we then compare to the actual infrared observations to infer the regolith properties. SHERMAN computes the local surface temperature for each facet on the asteroid at the time of observation, including self-shadowing, multiple scattering, and sub-scale roughness [modeled as small hemispherical craters following the methods of 4,5]. We will present an overview of our dataset as well as specific examples comparing our thermal modeling results to those from simple models such as NEATM [6] to illustrate some of the effects shape, observing geometry, and asteroid composition can have on the derived properties.

Vervack, R.; Howell, E.; Magri, C.; Fernández, Y.; Nolan, M.; Taylor, P.; Marshall, S.; Jones, J.; Rivkin, A.

2014-07-01

403

Re-placing gender? Reflections on 15 years of Gender, Place and Culture  

Microsoft Academic Search

This article reflects on Gender, Place and Culture (GPC) from 1994 to mid-2008, to highlight some of the key subjects and debates which have been delimited and progressed within its pages. Launched simultaneously with the cultural turn in human geography, GPC proceeded to raise important questions about identity and difference, effectively reflecting but also driving a number of transformative intellectual

Louise C. Johnson

2008-01-01

404

The end of geography or the explosion of place? Conceptualizing space, place and information technology  

Microsoft Academic Search

This article critically explores how the relations between information technologies and space and place are being conceptualized in a broad swathe of recent writings and discourses on the geographies of 'cyberspace' and information technologies. After analysing the powerful role of spatial and territorial metaphors in anchoring current discourses about information tech- nologies and society, the article goes on to identify

Stephen Graham

1998-01-01

405

Castolon: A Meeting Place of Two Cultures. Teaching with Historic Places.  

ERIC Educational Resources Information Center

Presents a lesson about frontier life in Texas and is based on the National Register of Historic Places registration file "Castolon Historic District" and other source materials about Castolon and ranching in the Big Bend region. States that the lesson could be incorporated into units on westward expansion or U.S. geography. (CMK)

Sperling, Carol E.

2000-01-01

406

Boston's Arnold Arboretum: A Place for Study and Recreation. Teaching with Historic Places.  

ERIC Educational Resources Information Center

This lesson is based on the National Register of Historic Places registration file for the Arnold Arboretum (Massachusetts) and other source material about the Arboretum and Frederick Law Olmstead. The lesson focuses on the first arboretum in the United States, which was part of Olmstead's plan for Boston's park system, known as the "Emerald…

Banks, Alan

407

Place ‘From One Glance’: the use of place in the marketing of New Zealand and Australian wines  

Microsoft Academic Search

Associations between place and wine are historically deep. Past and current narratives of wine production are wedded to environment attributes of particular places, and in both the European and Australasian settings this has been codified by way of formal labelling requirements for the place of origin for wines. In this paper we explore the role of place references on the

Glenn Banks; Steven Kelly; Nicolas Lewis; Scott Sharpe

2007-01-01

408

7. EXTERIOR SOUTHEAST SIDE DETAIL VIEW, FACING SOUTHWEST. BUILDINGS 101, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. EXTERIOR SOUTHEAST SIDE DETAIL VIEW, FACING SOUTHWEST. BUILDINGS 101, 278 AND CANOPY 685 DETAILED. - NASA Industrial Plant, Missile Research Laboratory, 12214 Lakewood Boulevard, Downey, Los Angeles County, CA

409

46 CFR 90.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2012 CFR

... 2012-10-01 false Electrical engineering details. 90.25-1 Section 90...GENERAL PROVISIONS General Electrical Engineering Requirements § 90.25-1 Electrical engineering details. (a) All electrical...

2012-10-01

410

46 CFR 188.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2011 CFR

... 2011-10-01 false Electrical engineering details. 188.25-1 Section 188...GENERAL PROVISIONS General Electrical Engineering Requirements § 188.25-1 Electrical engineering details. (a) The electrical...

2011-10-01

411

46 CFR 188.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2010 CFR

... 2010-10-01 false Electrical engineering details. 188.25-1 Section 188...GENERAL PROVISIONS General Electrical Engineering Requirements § 188.25-1 Electrical engineering details. (a) The electrical...

2010-10-01

412

46 CFR 90.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2013 CFR

... 2013-10-01 false Electrical engineering details. 90.25-1 Section 90...GENERAL PROVISIONS General Electrical Engineering Requirements § 90.25-1 Electrical engineering details. (a) All electrical...

2013-10-01

413

46 CFR 90.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2010 CFR

... 2010-10-01 false Electrical engineering details. 90.25-1 Section 90...GENERAL PROVISIONS General Electrical Engineering Requirements § 90.25-1 Electrical engineering details. (a) All electrical...

2010-10-01

414

46 CFR 90.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2011 CFR

... 2011-10-01 false Electrical engineering details. 90.25-1 Section 90...GENERAL PROVISIONS General Electrical Engineering Requirements § 90.25-1 Electrical engineering details. (a) All electrical...

2011-10-01

415

46 CFR 188.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2012 CFR

... 2012-10-01 false Electrical engineering details. 188.25-1 Section 188...GENERAL PROVISIONS General Electrical Engineering Requirements § 188.25-1 Electrical engineering details. (a) The electrical...

2012-10-01

416

46 CFR 188.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2013 CFR

... 2013-10-01 false Electrical engineering details. 188.25-1 Section 188...GENERAL PROVISIONS General Electrical Engineering Requirements § 188.25-1 Electrical engineering details. (a) The electrical...

2013-10-01

417

5 CFR 370.107 - Details to small business concerns.  

Code of Federal Regulations, 2010 CFR

...false Details to small business concerns. 370.107...REGULATIONS INFORMATION TECHNOLOGY EXCHANGE PROGRAM § 370.107 Details to small business concerns. (a...20 percent are to small business concerns, in...

2010-01-01

418

46 CFR 70.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Electrical engineering details. 70.25-1 Section...VESSELS GENERAL PROVISIONS General Electrical Engineering Requirements § 70.25-1 Electrical engineering details. All electrical...

2013-10-01

419

46 CFR 70.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Electrical engineering details. 70.25-1 Section...VESSELS GENERAL PROVISIONS General Electrical Engineering Requirements § 70.25-1 Electrical engineering details. All electrical...

2012-10-01

420

46 CFR 70.25-1 - Electrical engineering details.  

...2014-10-01 2014-10-01 false Electrical engineering details. 70.25-1 Section...VESSELS GENERAL PROVISIONS General Electrical Engineering Requirements § 70.25-1 Electrical engineering details. All electrical...

2014-10-01

421

46 CFR 70.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Electrical engineering details. 70.25-1 Section...VESSELS GENERAL PROVISIONS General Electrical Engineering Requirements § 70.25-1 Electrical engineering details. All electrical...

2011-10-01

422

46 CFR 70.25-1 - Electrical engineering details.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Electrical engineering details. 70.25-1 Section...VESSELS GENERAL PROVISIONS General Electrical Engineering Requirements § 70.25-1 Electrical engineering details. All electrical...

2010-10-01

423

46 CFR 194.05-7 - Explosives-Detail requirements.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Explosives-Detail requirements. 194...HANDLING, USE, AND CONTROL OF EXPLOSIVES AND OTHER HAZARDOUS MATERIALS Stowage and Marking § 194.05-7 Explosives—Detail requirements....

2013-10-01

424

46 CFR 194.05-7 - Explosives-Detail requirements.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Explosives-Detail requirements. 194...HANDLING, USE, AND CONTROL OF EXPLOSIVES AND OTHER HAZARDOUS MATERIALS Stowage and Marking § 194.05-7 Explosives—Detail requirements....

2011-10-01

425

46 CFR 193.10-5 - Fire main system, details.  

...Shipping 7 2014-10-01 2014-10-01 false Fire main system, details. 193.10-5 Section...CONTINUED) OCEANOGRAPHIC RESEARCH VESSELS FIRE PROTECTION EQUIPMENT Fire Main System, Details § 193.10-5 Fire...

2014-10-01

426

17. DETAIL OF SOUTH PORTAL, SHOWING "TREE OF LIFE" RAILING ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. DETAIL OF SOUTH PORTAL, SHOWING "TREE OF LIFE" RAILING DETAIL AS WELL AS BUILDER'S PLATE. - Falls Bridge, Spanning Schuylkill River, connecting East & West River Drives, Philadelphia, Philadelphia County, PA

427

46 CFR 90.25-1 - Electrical engineering details.  

... 2014-10-01 false Electrical engineering details. 90.25-1 Section 90...GENERAL PROVISIONS General Electrical Engineering Requirements § 90.25-1 Electrical engineering details. (a) All electrical...

2014-10-01

428

46 CFR 188.25-1 - Electrical engineering details.  

... 2014-10-01 false Electrical engineering details. 188.25-1 Section 188...GENERAL PROVISIONS General Electrical Engineering Requirements § 188.25-1 Electrical engineering details. (a) The electrical...

2014-10-01

429

9. South abutment, detail of collapsed east wing wall; also ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

9. South abutment, detail of collapsed east wing wall; also detail of bottom lateral bracing and stringers; looking southeast - Dodd Ford Bridge, County Road 147 Spanning Blue Earth River, Amboy, Blue Earth County, MN

430

3. East side, details of north half of east web; ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

3. East side, details of north half of east web; also details of roadway, railing and overhead bracing; looking northeast - Dodd Ford Bridge, County Road 147 Spanning Blue Earth River, Amboy, Blue Earth County, MN

431

46 CFR 188.20-1 - Marine engineering details.  

...2014-10-01 false Marine engineering details. 188.20-1...CONTINUED) OCEANOGRAPHIC RESEARCH VESSELS GENERAL PROVISIONS General Marine Engineering Requirements § 188.20-1 Marine engineering details. (a) The...

2014-10-01

432

46 CFR 188.20-1 - Marine engineering details.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 false Marine engineering details. 188.20-1...CONTINUED) OCEANOGRAPHIC RESEARCH VESSELS GENERAL PROVISIONS General Marine Engineering Requirements § 188.20-1 Marine engineering details. (a) The...

2012-10-01

433

Alternate States of Proteins Revealed by Detailed Energy Landscape Mapping  

E-print Network

Alternate States of Proteins Revealed by Detailed Energy Landscape Mapping Michael D. Tyka1 Keywords: Rosetta; alternative conformations; protein mobility; structure prediction; validation What through analysis of detailed protein energy landscapes generated by large-scale, native- enhanced sampling

Baker, David

434

Frittered Away by Details: Some Thoughts on Teaching Specifics.  

ERIC Educational Resources Information Center

Teaching students to use specific details is perhaps the college writing teacher's most troublesome job. Much time and effort is wasted by marking students' papers with comments such as "specify,""details,""illustrate," or "demonstrate." Significant concrete details should occur to a writer before the generalization does, since the best kind of…

Symes, Ken M.

435

UoS Motor Accident Report Form COMPANY DETAILS  

E-print Network

UNIV01FL02 UoS Motor Accident Report Form COMPANY DETAILS INSURED: University of Sussex ADDRESS: LOCATION: DESCRIPTION OF HOW ACCIDENT HAPPENED: PLEASE DRAW A SKETCH OF THE ACCIDENT: #12;DRIVER DETAILS: PREVIOUS ACCIDENTS: ADDRESS: VEHICLE DETAILS DATE VEHICLE PURCHASED: MAKE/MODEL: REGISTRATION: MILEAGE

Sussex, University of

436

5 CFR 370.104 - Length of details.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Length of details. 370.104 ...EXCHANGE PROGRAM § 370.104 Length of details. (a) Details...period of between 3 months and 1 year, and may be extended in 3-month...of not more than 1 additional year, in accordance with 5...

2010-01-01

437

5 CFR 370.104 - Length of details.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Length of details. 370.104 ...EXCHANGE PROGRAM § 370.104 Length of details. (a) Details...period of between 3 months and 1 year, and may be extended in 3-month...of not more than 1 additional year, in accordance with 5...

2013-01-01

438

5 CFR 370.104 - Length of details.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Length of details. 370.104 ...EXCHANGE PROGRAM § 370.104 Length of details. (a) Details...period of between 3 months and 1 year, and may be extended in 3-month...of not more than 1 additional year, in accordance with 5...

2011-01-01

439

5 CFR 370.104 - Length of details.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Length of details. 370.104 ...EXCHANGE PROGRAM § 370.104 Length of details. (a) Details...period of between 3 months and 1 year, and may be extended in 3-month...of not more than 1 additional year, in accordance with 5...

2012-01-01

440

32 CFR 241.6 - Length of details.  

...2014-07-01 2014-07-01 false Length of details. 241.6 Section...TECHNOLOGY PERSONNEL § 241.6 Length of details. (a) A detail...3 months and not more than 1 year, and may be extended in 3-month...of not more than 1 additional year by DoD Components and...

2014-07-01

441

5 CFR 370.104 - Length of details.  

...2014-01-01 2014-01-01 false Length of details. 370.104 ...EXCHANGE PROGRAM § 370.104 Length of details. (a) Details...period of between 3 months and 1 year, and may be extended in 3-month...of not more than 1 additional year, in accordance with 5...

2014-01-01

442

32 CFR 241.6 - Length of details.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Length of details. 241.6 Section...TECHNOLOGY PERSONNEL § 241.6 Length of details. (a) A detail...3 months and not more than 1 year, and may be extended in 3-month...of not more than 1 additional year by DoD Components and...

2013-07-01

443

Personal Details Title: (Ms/Mrs/Mr/Dr) Tel.  

E-print Network

Cheque Bank Transfer Credit Card Total Total fees: £ Credit Card Details Card Type Visa Master Card Card Holder Name: (as appears on the card) Card Number: Start Date: (if any, month/year, e.g. 7/2007) Expiry method of payment. Our bank details are given below. Please fill the "Credit Card Details" section below

Jose, Joemon M.

444

Optimisation of computed radiography systems for chest imaging  

NASA Astrophysics Data System (ADS)

The main thrust of this study is to investigate methods of optimising the radiation dose-image quality relationship in computed radiography (CR) systems for chest imaging. Specifically, this study investigates the possibility of reducing the patient radiation exposure through an optimal selection of tube filtration, exposure parameters and air gap technique, in parallel with a study of the image quality, particularly low contrast detail detectability, signal-to-noise ratio (SNR) and scatter fraction (SF). The CDRAD phantom was used to assess the quality of the CR images. Tissue equivalent Polystyrene blocks were placed in the front of the phantom as scattering material with thicknesses of 5 and 15 cm to simulate an adult chest and heart/diaphragm regions, respectively. A series of exposure techniques were used, including Cu filtration with various thicknesses of Cu in the presence and absence of an air gap, whilst the exposure was kept as constant as possible throughout. The estimated patient effective dose and skin entrance dose were calculated using the NRPB-SR262 X-ray dose calculation software. The results have shown that the low contrast-detail detectability in the lung and the heart/diaphragm regions improves when using an air gap and no Cu filtration, particularly at low kilovoltage (kVp). However, there is no significant difference in low contrast-detail in the absence or presence of a 0.2 mm Cu filtration. SF values for the lung and heart regions decrease when using both, the air gap technique and a 0.2 mm Cu filtration, particularly at low kVp. SNR values for the lung and heart regions improve when using a small Cu thickness. In conclusion, this investigation has shown that the quality of chest CR images could be improved by using an air gap technique and a 0.2 mm Cu filtration at low kVp, particularly at 99 kVp.

Alzimami, K.; Sassi, S.; Alkhorayef, M.; Britten, A. J.; Spyrou, N. M.

2009-03-01

445

Cell Signaling: Details, Details, Details  

NSDL National Science Digital Library

From plants to flies to animals, new pathways and updates to the Database of Cell Signaling highlight pathways that regulate diverse functions—from cell motility and survival to development in mammals, plants, and insects.

Nancy R. Gough (American Association for the Advancement of Science; Editor of Science's STKE REV)

2007-10-09

446

Subwavelength internal imaging by means of a wire medium  

NASA Astrophysics Data System (ADS)

In this paper, the phenomenon of evanescent wave amplification inside a half-wavelength-thick wire medium slab is studied numerically and used for subwavelength imaging of objects at significant distances from the lens. The wire medium is analysed using both a spatially dispersive finite-difference time-domain (FDTD) method employing the effective medium theory and a full-wave commercial electromagnetic simulator CST Microwave Studio™ modelling the physical structure. It is demonstrated that subwavelength details of a source placed at a distance ?/10 from a wire medium slab can be detected inside the slab with a resolution of approximately ?/10 in spite of the fact that they cannot be resolved at the front interface of the device, due to the rapid decay of evanescent spatial harmonics in free space. The influence of different distances between the source and the wire medium on the internal imaging property is also addressed.

Zhao, Yan; Belov, Pavel; Hao, Yang

2009-07-01

447

Detailed Northern Anatolian Fault Zone crustal structure from receiver functions  

NASA Astrophysics Data System (ADS)

We present high resolution images derived from receiver functions of the continental crust in Northern Turkey that is dissected by two fault strands of the Northern Anatolian Fault Zone (NAFZ). The NAFZ is a major continental strike-slip fault system that is comparable in length and slip rate to the San Andreas Fault Zone. Recent large earthquakes occurred towards the western end of the NAFZ in 1999 at Izmit (M7.5) and Düzce (M7.2). As part of the multi-disciplinary Faultlab project, we aim to develop a model of NAFZ crustal structure and locate deformation by constraining variations in seismic properties and anisotropy in the upper and lower crust. The crustal model will be an input to test deformation scenarios in order to match geodetic observations from different phases of the earthquake loading cycle. We calculated receiver functions from teleseismic earthquakes recorded by a rectangular seismometer array spanning the NAFZ with 66 stations at a nominal inter-station spacing of 7 km and 7 additional stations further afield. This Dense Array for North Anatolia (DANA) was deployed from May 2012 until September 2013 and we selected large events (Mw>5.5) from the high quality seismological dataset to analyze further. Receiver functions were calculated for different frequency bands then collected into regional stacks before being inverted for crustal S-wave velocity structure beneath the entire DANA array footprint. In addition, we applied common conversion point (CCP) migration using a regional velocity model to construct a migrated 3D volume of P-to-S converted and multiple energy in order to identify the major crustal features and layer boundaries. We also performed the CCP migration with transverse receiver functions in order to identify regions of anisotropy within the crustal layers. Our preliminary results show a heterogeneous crust above a flat Moho that is typically at a depth of 33 km. We do not observe a prominent step in the Moho beneath the surface locations at either of the NAFZ fault branches. We observe first-order differences in crustal structure between the crustal blocks that are separated by the faults. Each crustal block also contains regions of strong anisotropy at various depths that will be analyzed further with the full seismological dataset and compared to petrofabric analyses of exhumed fault segments. We will compare our results with other seismological imaging techniques to attempt to resolve the distribution of fault zone deformation with respect to depth. This information will be useful to other complementary Faultlab techniques that will add a detailed insight into the fault structure and dynamics of the NAFZ and contribute more broadly into ongoing research into major strike-slip fault zones.

Cornwell, D. G.; Kahraman, M.; Thompson, D. A.; Houseman, G. A.; Rost, S.; Turkelli, N.; Teoman, U.; Altuncu Poyraz, S.; Gülen, L.; Utkucu, M.

2013-12-01

448

Analyzing Image Structure by Multidimensional Frequency Modulation  

E-print Network

images. Previous papers have detailed methods for achiev- ing relevant AM-FM demodulation, namely-Modu- lation (AM-FM) image model, which models nonstationary image content using an AM-FM expansion. By way shows a woodgrain. Both images are excellent examples of emergent AM-FM patterns. Nonstationarity

Texas at Austin, University of

449

SKETCH BASED CODING OF GREY LEVEL IMAGES  

Microsoft Academic Search

We present an algorithm for data compression of grey level images based on coding geometric and grey level information of the contours in the image. From this sketch information alone an intelligible grey level image can be reconstructed. Compression ratios will be dependent on the amount of detail in the image and the quality of the reconstruction. For a human

Stefan CARLSSON

1998-01-01

450

Imaging Borrelly  

USGS Publications Warehouse

The nucleus, coma, and dust jets of short-period Comet 19P/Borrelly were imaged from the Deep Space 1 spacecraft during its close flyby in September 2001. A prominent jet dominated the near-nucleus coma and emanated roughly normal to the long axis of nucleus from a broad central cavity. We show it to have remained fixed in position for more than 34 hr, much longer than the 26-hr rotation period. This confirms earlier suggestions that it is co-aligned with the rotation axis. From a combination of fitting the nucleus light curve from approach images and the nucleus' orientation from stereo images at encounter, we conclude that the sense of rotation is right-handed around the main jet vector. The inferred rotation pole is approximately perpendicular to the long axis of the nucleus, consistent with a simple rotational state. Lacking an existing IAU comet-specific convention but applying a convention provisionally adopted for asteroids, we label this the north pole. This places the sub-solar latitude at ???60?? N at the time of the perihelion with the north pole in constant sunlight and thus receiving maximum average insolation. ?? 2003 Elsevier Inc. All rights reserved.

Soderblom, L.A.; Boice, D.C.; Britt, D.T.; Brown, R.H.; Buratti, B.J.; Kirk, R.L.; Lee, M.; Nelson, R.M.; Oberst, J.; Sandel, B.R.; Stern, S.A.; Thomas, N.; Yelle, R.V.

2004-01-01

451

Conceptual Distinctiveness Supports Detailed Visual Long-Term Memory for Real-World Objects  

Microsoft Academic Search

Humans have a massive capacity to store detailed information in visual long-term memory. The present studies explored the fidelity of these visual long-term memory representations and examined how conceptual and perceptual features of object categories support this capacity. Observers viewed 2,800 object images with a different number of exemplars presented from each category. At test, observers indicated which of 2

Talia Konkle; Timothy F. Brady; George A. Alvarez; Aude Oliva

2010-01-01

452

Real-time, continuous level of detail rendering of height fields  

Microsoft Academic Search

We present an algorithm for real-time level of detail reduct ion and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, an d em- ploys a variable screen-space threshold to bound the maximum er- ror of the projected image. A coarse level of simplification i s per- formed to select discrete levels of

Peter Lindstrom; David Koller; William Ribarsky; Larry F. Hodges; Nickolas Faust; Gregory A. Turner

1996-01-01

453

Effects of three types of flight simulator visual scene detail on detection of altitude change.  

PubMed

The effects of three types of flight simulator visual scene detail on detection of altitude change were evaluated in three experiments. Across all experiments and with a variety of tasks and display conditions, speed and accuracy of detecting altitude change improved with increases in the density of vertical objects in scenes. Adding detail to individual objects to increase their natural appearance produced no consistent effects on performance. In Experiment 3 complex texture distributed globally on terrain surfaces improved detection of altitude change but did not alleviate the need for high object density. These results indicate that available computer image generator processing capacity would be used more effectively by increasing the density of objects in scenes, rather than by increasing the complexity and detail of individual objects. Complex texture is used more effectively when distributed globally on terrain surfaces, rather than when allocated to individual objects. PMID:8163280

Kleiss, J A; Hubbard, D C

1993-12-01

454

High throughput, detailed, cell-specific neuroanatomy of dendritic spines using microinjection and confocal microscopy  

PubMed Central

Morphological features such as size, shape and density of dendritic spines have been shown to reflect important synaptic functional attributes and potential for plasticity. Here we describe in detail a protocol for obtaining detailed morphometric analysis of spines using microinjection of fluorescent dyes, high resolution confocal microscopy, deconvolution and image analysis using NeuronStudio. Recent technical advancements include better preservation of tissue resulting in prolonged ability to microinject, and algorithmic improvements that compensate for the residual Z-smear inherent in all optical imaging. Confocal imaging parameters were probed systematically for the identification of both optimal resolution as well as highest efficiency. When combined, our methods yield size and density measurements comparable to serial section transmission electron microscopy in a fraction of the time. An experiment containing 3 experimental groups with 8 subjects in each can take as little as one month if optimized for speed, or approximately 4 to 5 months if the highest resolution and morphometric detail is sought. PMID:21886104

Dumitriu, Dani; Rodriguez, Alfredo; Morrison, John H.

2012-01-01

455

Placing outer space : an earthly ethnography of other worlds  

E-print Network

This dissertation concerns the role of place in scientific practice. Ideas of place, I argue, shape and are shaped by science. I specifically look at the community of planetary scientists who, though they cannot step foot ...

Messeri, Lisa Rebecca

2011-01-01

456

Place Meaning and Attitudes toward Impacts on Marine Environments  

E-print Network

The study of place has been a component of the recreation literature for about three decades. Most researchers have sought to either describe the cognitive and evaluative beliefs (place meaning) recreational visitors ascribe to a setting or identify...

Wynveen, Christopher J.

2010-10-12

457

29 CFR 780.916 - “Place of * * * first marketing.”  

Code of Federal Regulations, 2010 CFR

A “place of * * * first marketing” is the second of the two types of places to which the freshly harvested fruits or vegetables may be transported from the farm under the exemption provided by section...

2010-07-01

458

Writing place: a comparison of nursing research and health geography.  

PubMed

The concept of 'place', and general references to 'geographies of ...' are making gradual incursions into nursing literature. Although the idea of place in nursing is not new, this recent spatial turn seems to be influenced by the increasing profile of the discipline of health geography, and the broadening of its scope to incorporate smaller and more intimate spatial scales. A wider emphasis within the social sciences on place from a social and cultural perspective, and a wider turn to 'place' across disciplines are probably equally important factors. This trend is raising some interesting questions for nurses, but at the same time contributes some confusion with regard to imputed meanings of 'place'. While it is clear that most nurse clinicians and researchers certainly understand that place of care matters to their practices and patients, many diverse uses of 'place' are found within nursing literature, and contemporary understandings of the term 'place' within nursing are not immediately clear. It is in this context that this article plans to advance the discussion of place. More specifically, the aims of this paper are threefold: to critique 'place' as it appears in nursing literature, to explore the use of 'place' within health geography, whence notions of place and 'geographies of' have originated and, finally, to compare and contrast the use of 'place' in both disciplines. This critique intends to address a deficit in the literature, in this era of growing spatialization in nursing research. The specific questions of interest here are: 'what is "place" in nursing?' and 'how do concepts of place in nursing compare to concepts of place in health geography?' PMID:16918788

Carolan, Mary; Andrews, Gavin J; Hodnett, Ellen

2006-09-01

459

Lensless Coherent Imaging with Shaped Illumination and Phase-Retrieval Image Reconstruction  

E-print Network

on the illumination system. For imaging through atmospheric turbulence with adaptive optics, a great burden is placed on the receiving optics, wavefront sensor, and deformable mirror. For imaging through atmospheric turbulence usingLensless Coherent Imaging with Shaped Illumination and Phase-Retrieval Image Reconstruction James R

Fienup, James R.

460

Including Historic Places in the Social Studies Curriculum. ERIC Digest.  

ERIC Educational Resources Information Center

"Teaching with Historic Places" is a program administered by the National Park Service's National Register of Historic Places that identifies ways teachers can share the stories that historic places have to tell. The program creates classroom-ready educational materials based on properties that are listed in the National Register of Historic…

Harper, Marilyn

461

SToPV: A Five Minute Assessment of Place Value  

ERIC Educational Resources Information Center

Place value underpins much of what people do in number. In this article, the author describes some simple tasks that may be used to assess students' understanding of place value. This set of tasks, the Six Tasks of Place Value (SToPV), takes five minutes to administer and can give direct insight into a student's understanding of the number system…

Berman, Jeanette

2011-01-01

462

Main elevation of 3516 South Broad Place, SW. This house ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Main elevation of 3516 South Broad Place, SW. This house was used by the agent for Merrimack Mills, and now is the headquarters of Impact Ministries - 3516 South Broad Place, Southwest (House), 3516 South Broad Place, Southwest, Huntsville, Madison County, AL

463

Metonymy and Indexicality: People and Place in the Five Points  

Microsoft Academic Search

This article explores how the perceived identity of a population may be rhetorically constructed by a discursive relationship between a place and the people that live there. This relationship is constructed through the use of metonymy and the establishment of an indexical connection between people and place. People become synonymous with place and vice versa so that reference to one

Jacob Dickerson

2012-01-01

464

Digital Storytelling in a Place-Based Composition Course  

ERIC Educational Resources Information Center

Although the study of place in the fields of composition and education has a long and compelling history, the concept has taken on increased importance in today's digital landscape. As perceptions of places shift, we're challenged to understand how and which places shape who we are. Due to its potential power to leverage student choice,…

Chisholm, James S.; Trent, Brandie

2014-01-01

465

On being sane in insane places.  

PubMed

It is clear that we cannot distinguish the sane from the insane in psychiatric hospitals. The hospital itself imposes a special environment in which the meanings of behavior can easily be misunderstood. The consequences to patients hospitalized in such an environment-the powerlessness, depersonalization, segregation, mortification, and self-labeling-seem undoubtedly countertherapeutic. I do not, even now, understand this problem well enough to perceive solutions. But two matters seem to have some promise. The first concerns the proliferation of community mental health facilities, of crisis intervention centers, of the human potential movement, and of behavior therapies that, for all of their own problems, tend to avoid psychiatric labels, to focus on specific problems and behaviors, and to retain the individual in a relatively non-pejorative environment. Clearly, to the extent that we refrain from sending the distressed to insane places, our impressions of them are less likely to be distorted. (The risk of distorted perceptions, it seems to me, is always present, since we are much more sensitive to an individual's behaviors and verbalizations than we are to the subtle contextual stimuli that often promote them. At issue here is a matter of magnitude. And, as I have shown, the magnitude of distortion is exceedingly high in the extreme context that is a psychiatric hospital.) The second matter that might prove promising speaks to the need to increase the sensitivity of mental health workers and researchers to the Catch 22 position of psychiatric patients. Simply reading materials in this area will be of help to some such workers and researchers. For others, directly experiencing the impact of psychiatric hospitalization will be of enormous use. Clearly, further research into the social psychology of such total institutions will both facilitate treatment and deepen understanding. I and the other pseudopatients in the psychiatric setting had distinctly negative reactions. We do not pretend to describe the subjective experiences of true patients. Theirs may be different from ours, particularly with the passage of time and the necessary process of adaptation to one's environment. But we can and do speak to the relatively more objective indices of treatment within the hospital. It could be a mistake, and a very unfortunate one, to consider that what happened to us derived from malice or stupidity on the part of the staff. Quite the contrary, our overwhelming impression of them was of people who really cared, who were committed and who were uncommonly intelligent. Where they failed, as they sometimes did painfully, it would be more accurate to attribute those failures to the environment in which they, too, found themselves than to personal callousness. Their perceptions and behavior were controlled by the situation, rather than being motivated by a malicious disposition. In a more benign environment, one that was less attached to global diagnosis, their behaviors and judgments might have been more benign and effective. PMID:4683124

Rosenhan, D L

1973-01-19

466

Details, Details... The Impact of Market Rules on Emerging "Green " Energy Markets  

E-print Network

Green power marketing is creating a customer-driven market for renewable energy resources, including solar, wind, geothermal, biomass, and hydropower. Yet there are a number of “market barriers” to the creation of a workable green power market, and the ultimate success of retail markets for green power products will depend critically on the detailed “market rules ” established at the onset of restructuring and on a number of “market facilitation ” efforts. By surveying green power marketers and reviewing regulatory filings, this paper identifies and analyzes the types of restructuring market rules and market facilitation efforts that impact the competitive market for electricity services broadly, and the retail market for green power specifically. Taking a marketer perspective as our point of reference, we emphasize those rules and efforts that most effectively target key market barriers and that might be most successful in expanding the market for retail green power products. This information should help those interested in encouraging the development of the green power market during the early years of electricity restructuring.

Ernest Orlando Lawrence; Ryan Wiser; Steven Pickle; Joseph Eto

1998-01-01

467

Place Evaluation and Self-Esteem at School: The Mediated Effect of Place Identification  

ERIC Educational Resources Information Center

Like neighbourhoods, companies or housing, schools are considered a location for which the student must develop feelings of attachment and identification. The purpose of this research is to test a path model in which the evaluation of the image of the scholastic institution plays a role in the process of sociospatial identification in the school…

Fleury-Bahi, Ghozlane; Marcouyeux, Aurore

2010-01-01

468

Ejection of particles placed on a thin film by laser-induced forward transfer  

NASA Astrophysics Data System (ADS)

Laser-induced forward transfer (LIFT) was applied to eject the particles placed on a thin film. The behavior of the fluorescent particles in the gas phase was observed by a two-dimensional laser-induced fluorescence (2D-LIF) technique. The behavior of emissive particles was also imaged. The speed of the particles was in the order of few hundreds m/s, and changed with ablation conditions. The fastest speed was around 280 m/s.

Nakata, Yoshiki; Okada, Tatsuo; Maeda, Mitsuo

2001-06-01

469

Sowing a sense of place : an in-depth case study of changing youths' sense of places  

E-print Network

In this dissertation I examine the change in youths' sense of urban and non-urban places brought about by involvement in a multi-site agriculture program. The concept of 'Place' is more than the biophysical and built ...

Fisman, Lianne

2007-01-01

470

A detailed study of attached and separated compression corner flowfields in high Reynolds number supersonic flow  

NASA Technical Reports Server (NTRS)

An experimental study has been carried out to detail the interaction of a compressible turbulent boundary layer with shock waves of varying strengths. The interaction was produced by two-dimensional compression corners of 8, 16, 20, and 24 deg angles. The incoming boundary layer had an edge Mach number of 2.85 and a Reynolds number of 1.7 million based on overall thickness. Detailed mean-flow and surface measurements are presented for the four corner angles. The 8 deg corner flow was found to be fully attached, while the 16 deg case was near incipient separation. Both the 20 deg and 24 deg corners produced significant flow separation regions. In the discussion of these results, emphasis is placed on the development of flowfield properties from attached to separated conditions. Comparisons made with a computational solution of the Navier-Stokes equations show good agreement when the corner flow is not separated.

Settles, G. S.; Fitzpatrick, T. J.; Bogdonoff, S. M.

1978-01-01

471

Detail of proscenium opening. San bernardino Valley Union Junior College, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail of proscenium opening. San bernardino Valley Union Junior College, Auditorium Building. Details of corbels and soffit; lettering detail for frieze. G. Stanley Wilson, Architect, A.I.A., Riverside, California. Sheet W.P.A. 2, job no. 692. Scale 3/4 inch to the foot. May 18, 1937. (no state stamp. - San Bernardino Valley College, Auditorium, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

472

Mars Image Analysis  

NSDL National Science Digital Library

This lesson plan details an activity designed to put students in the role of scientists in analyzing the geological processes that occur on terrestrial planets - i.e. Earth and Mars. Students will use images from NASAâs Thermal Emission Imaging System (THEMIS) camera onboard the Mars Odyssey spacecraft to evaluate the geologic history and present conditions on Mars. This activity will enable students to understand the geological history of Mars by using what they understand about Earth's processes.

2004-01-01

473

The Effects of Volunteering on the Development of Place Attachment and Stewardship of Natural Places  

E-print Network

feelings of self-worth through service to others. Volunteering for career purposes is seen as a way to help get a foot in the door of a place the individual would like to work. Social motivations relate to knowing and meeting others who are interested... knowing a job has been done well, a sense of accomplishment, knowing they have made a difference, or even from completing a physically challenging task. Those who 10 participate more often, have more satisfaction (Miles et al., 1998...

Eccles, Kate

2010-01-16

474

Interior view, detail of the staircase to show the burnished ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Interior view, detail of the staircase to show the burnished aluminum and brass balustrade - Departmental Auditorium, Constitution Avenue between Twelfth and Fourteenth Streets, Washington, District of Columbia, DC

475

DETAIL VIEW OF MARISCAL WORKS CONDENSERS INCLUDING QUICKSILVER COLLECTION CHANNEL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

DETAIL VIEW OF MARISCAL WORKS CONDENSERS INCLUDING QUICKSILVER COLLECTION CHANNEL AND COLLECTION BOX, CENTER FOREGROUND, LOOKING SOUTH, SOUTHEAST. - Mariscal Quicksilver Mine & Reduction Works, Terlingua, Brewster County, TX

476

29. Detail view north showing amperage and voltage meters, operator's ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

29. Detail view north showing amperage and voltage meters, operator's room, west operator's house. - Yellow Mill Bridge, Spanning Yellow Mill Channel at Stratford Avenue, Bridgeport, Fairfield County, CT

477

DETAIL OF PLAQUE WITH ADDITIONAL DESIGN AND CONSTRUCTION INFORMATION, SOUTHEAST ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

DETAIL OF PLAQUE WITH ADDITIONAL DESIGN AND CONSTRUCTION INFORMATION, SOUTHEAST ABUTMENT - Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Connecticut Avenue, Washington, District of Columbia, DC

478

Detail of door on southeast elevation. View to northwest ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail of door on southeast elevation. View to northwest - Flint Creek Hydroelectric Project, Powerhouse, Approximately 3 miles southeast of Porters Corner on Powerhouse Road, Philipsburg, Granite County, MT

479

10. Detail, northerly spans, west side, showing deterioration; note spalls, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

10. Detail, northerly spans, west side, showing deterioration; note spalls, cracks, and efflorescence; view to southeast. - Fordway Bridge, Spanning Concord River at Pollard Street, Billerica, Middlesex County, MA

480

Interior detail of dispatch boards in main hall, facing west ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Interior detail of dispatch boards in main hall, facing west - International Longshoremen's & Warehousemen's Union Hall, Naval Civil Engineering Laboratory, Port Hueneme Road, Port Hueneme, Ventura County, CA

481

7. DETAIL, WINDOWS AND SAFETY LADDER AT RECEIVING DEPARTMENT, NORTH ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. DETAIL, WINDOWS AND SAFETY LADDER AT RECEIVING DEPARTMENT, NORTH SIDE, NEAR WEST END. - United Engineering Company Shipyard, Inspection & Repair Shops, 2900 Main Street, Alameda, Alameda County, CA

482

22. DETAIL, WOOD BLOCK FLOOR Delaware, Lackawanna & Western ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

22. DETAIL, WOOD BLOCK FLOOR - Delaware, Lackawanna & Western Railroad Freight & Rail Yard, Multiple Unit Light Inspection Shed, New Jersey Transit Hoboken Terminal Rail Yard, Hoboken, Hudson County, NJ

483

12. DETAIL, TYPICAL WINDOW BAY Delaware, Lackawanna & Western ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

12. DETAIL, TYPICAL WINDOW BAY - Delaware, Lackawanna & Western Railroad Freight & Rail Yard, Multiple Unit Light Inspection Shed, New Jersey Transit Hoboken Terminal Rail Yard, Hoboken, Hudson County, NJ

484

18. DETAIL, INSPECTION PIT Delaware, Lackawanna & Western Railroad ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

18. DETAIL, INSPECTION PIT - Delaware, Lackawanna & Western Railroad Freight & Rail Yard, Multiple Unit Light Inspection Shed, New Jersey Transit Hoboken Terminal Rail Yard, Hoboken, Hudson County, NJ

485

19. DETAIL, OVERHEAD CATWALK Delaware, Lackawanna & Western Railroad ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

19. DETAIL, OVERHEAD CATWALK - Delaware, Lackawanna & Western Railroad Freight & Rail Yard, Multiple Unit Light Inspection Shed, New Jersey Transit Hoboken Terminal Rail Yard, Hoboken, Hudson County, NJ

486

TENANT HOUSE, WINDOW DETAIL, NORTH FRONT, LOOKING SOUTH Irvine ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

TENANT HOUSE, WINDOW DETAIL, NORTH FRONT, LOOKING SOUTH - Irvine Ranch Agricultural Headquarters, Carillo Tenant House, Southwest of Intersection of San Diego & Santa Ana Freeways, Irvine, Orange County, CA

487

INTERIOR SECOND FLOOR EAST ENGINEERING DESIGN AREA DETAIL VIEW, FACING ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

INTERIOR SECOND FLOOR EAST ENGINEERING DESIGN AREA DETAIL VIEW, FACING NORTH. - NASA Industrial Plant, Systems Integration & Checkout Facility, 12214 Lakewood Boulevard, Downey, Los Angeles County, CA

488

DETAIL VIEW OF SOUTH FRONT DOORS, FACING NORTHEAST. Douglas ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

DETAIL VIEW OF SOUTH FRONT DOORS, FACING NORTHEAST. - Douglas Aircraft Company Long Beach Plant, Aircraft Wing & Fuselage Assembly Building, 3855 Lakewood Boulevard, Long Beach, Los Angeles County, CA

489

3D Tumor Shape Reconstruction from 2D Bioluminescence Images and Registration with CT Images  

E-print Network

with detailed anatomical structure extracted from high-resolution micro-CT on a single platform. A complementary imaging modality to BLI is the microCT imaging, which can be used in one session to provide

490

Dynamic Isosurface Extraction and Level-of-Detail in Voxel Space  

SciTech Connect

A new visualization representation is described, which dramatically improves interactivity for scientific visualizations of structured grid data sets by creating isosurfaces at interactive speeds and with dynamically changeable levels-of-detail (LOD). This representation enables greater interactivity by allowing an analyst to dynamically specify both the desired isosurface threshold and required level-of-detail to be used while rendering the image. A scientist can therefore view very large isosurfaces at interactive speeds (with a low level-of-detail), but has the full data set always available for analysis. The key idea is that various levels-of-detail are represented as differently sized hexahedral virtual voxels, which are stored in a three-dimensional binary tree, or kd-tree; thus the level-of-detail representation is done in voxel space instead of the traditional approach which relies on surface or geometry space decimations. Utilizing the voxel space is an essential step to moving from a post-processing visualization paradigm to a quantitative, real-time paradigm. This algorithm has been implemented as an integral component of the EIGEN/VR project at Sandia National Laboratories, which provides a rich environment for scientists to interactively explore and visualize the results of very large-scale simulations performed on massively parallel supercomputers.

Lamphere, P.B.; Linebarger, J.M.

1999-03-01

491

Detailed design report for an operational phase panel-closure system  

SciTech Connect

Under contract to Westinghouse Electric Corporation (Westinghouse), Waste Isolation Division (WID), IT Corporation has prepared a detailed design of a panel-closure system for the Waste Isolation Pilot Plant (WIPP). Preparation of this detailed design of an operational-phase closure system is required to support a Resource Conservation and Recovery Act (RCRA) Part B permit application and a non-migration variance petition. This report describes the detailed design for a panel-closure system specific to the WIPP site. The recommended panel-closure system will adequately isolate the waste-emplacement panels for at least 35 years. This report provides detailed design and material engineering specifications for the construction, emplacement, and interface-grouting associated with a panel-closure system at the WIPP repository, which would ensure that an effective panel-closure system is in place for at least 35 years. The panel-closure system provides assurance that the limit for the migration of volatile organic compounds (VOC) will be met at the point of compliance, the WIPP site boundary. This assurance is obtained through the inherent flexibility of the panel-closure system.

NONE

1996-01-11

492

Computed tomography for imaging the breast.  

PubMed

Despite the success of screening mammography contributing to the reduction of cancer mortality, a number of other imaging techniques are being studied for breast cancer screening. In our laboratory, a dedicated breast computed tomography (CT) system has been developed and is currently undergoing patient testing. The breast CT system is capable of scanning the breast with the woman lying prone on a tabletop, with the breast in the pendant position. A 360 degrees scan currently requires 16.6 s, and a second scanner with a 9-second scan time is nearly operational. Extensive effort was placed on computing the radiation dose to the breast under CT geometry, and the scan parameters are selected to utilize the same radiation dose levels as two-view mammography. A total of 55 women have been scanned, ten healthy volunteers in a Phase I trial, and 45 women with a high likelihood of having breast cancer in a Phase II trial. The breast CT process leads to the production of approximately three hundred 512 x 512 images for each breast. Subjective evaluation of the breast CT images reveals excellent anatomical detail, good depiction of microcalcifications, and exquisite visualization of the soft tissue components of the tumor when contrasted against adipose tissues. The use of iodine contrast injection dramatically enhances the visualization of tumors. While a thorough scientific investigation based upon observer performance studies is in progress, initial breast CT images do appear promising and it is likely that breast CT will play some role in breast cancer imaging. PMID:17053979

Boone, John M; Kwan, Alex L C; Yang, Kai; Burkett, George W; Lindfors, Karen K; Nelson, Thomas R

2006-04-01

493

Teaching with Historic Places Lesson Plans: A Woman's Place is the Sewall-Belmont House  

NSDL National Science Digital Library

In 1929, the National Woman's Party set up headquarters in the Sewall-Belmont House on Capitol Hill in Washington, DC. Their leader, Alice Paul, was a tireless advocate for woman's rights, well known for drafting the first Equal Rights Amendment in 1921. This lesson plan from the National Park Service explores this historic home and Paul's work through primary documents, maps, images, and classroom activities. The Table of Contents area contains a number of sections, including Locating the Site: Maps, Determining the Facts: Readings, and Visual Evidence: Images. The site is rounded out by classroom activities, which include explorations into oral history and investigations into the history of liberties denied and enjoyed by various groups of citizens.

494

Image-based prediction of imaging and vision performance.  

PubMed

Some scenarios require performance estimation of an imaging or a computer vision system prior to its actual operation such as in system design, as well as in tasks of high risk or cost. To predict the performance, we propose an image-based approach that accounts for underlying image-formation processes while using real image data. We give a detailed description of image formation from scene photons to image gray levels. This analysis includes all the optical, electrical, and digital sources of signal distortion and noise. On the basis of this analysis and our access to the camera parameters, we devise a simple image-based algorithm. It transforms a baseline high-quality image to render an estimated outcome of the system we wish to operate or design. We demonstrate our approach on thermal imaging systems (infrared spectrum, 3-5 microm). PMID:17728814

Bobrov, Saar; Schechner, Yoav Y

2007-07-01

495

Measurement system for large size laser beam intensity distribution based on CCD diffuse transmission imaging  

NASA Astrophysics Data System (ADS)

We designed a measurement system to measure large size laser beam intensity distribution based on CCD diffuse transmission imaging. The measurement principle is presented. The configuration of the system is introduced. An emphasis is placed on the design of diffuse transmission target. The methods of spot geometry distortion correction and intensity distortion correction are described in detail. After laser spot correction, we can get the real laser beam intensity profile. The test results are given, which validate the correctness of the method. The paper provides a new way to measure quantitatively the profile of large size laser beam with high accuracy.

Pang, Miao; Rong, Jian; Yuan, Xuewen; Gao, Xueyan; Zhou, Shan

2013-12-01

496

Processing and Recall of Seductive Details in Scientific Text  

ERIC Educational Resources Information Center

This study examined how seductive details affect on-line processing of a technical, scientific text. In Experiment 1, each sentence from the experimental text was rated for interest and importance. Participants rated seductive details as being more interesting but less important than main ideas. In Experiment 2, we examined the effect of seductive…

Lehman, Stephen; Schraw, Gregory; McCrudden, Matthew T.; Hartley, Kendall

2007-01-01

497

LSP DETAILED SYSTEM HAZARD PAGE 1 OF 30  

E-print Network

LSP DETAILED SYSTEM HAZARD ANALYSIS ··-· ATM 1049 PAGE 1 OF 30 Aerospace Systems Division DATE 16, Supervisor ort Engineering #12;ATM 1049 LSP DETAILED SYSTEM HAZARD ANALYSIS 2 OF 30PAGI DATE 16Aug.1971 1. 0 of the LSP explosives during the full scope of t.he mission phases of installation, launch, flight, and lunar

Rathbun, Julie A.

498

35. DETAILS AND SECTIONS OF FUEL ELEMENT SUPPORT PLATFORM, FUEL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

35. DETAILS AND SECTIONS OF FUEL ELEMENT SUPPORT PLATFORM, FUEL ELEMENT HOLDER, TRIP MECHANISM COVER, AND OTHER DETAILS. F.C. TORKELSON DRAWING NUMBER 842-ARVFS-701-S-3. INEL INDEX CODE NUMBER: 075 0701 60 851 151977. - Idaho National Engineering Laboratory, Advanced Reentry Vehicle Fusing System, Scoville, Butte County, ID

499

Near-complete violation of detailed balance in thermal radiation  

NASA Astrophysics Data System (ADS)

We introduce general principles for achieving maximal violation of detailed balance in thermal radiation. We validate these principles by direct numerical calculations, based on fluctuational electrodynamics, on thermal emitters constructed from magneto-optical photonic crystals. Such a capability to maximally violate the detailed balance provides different opportunities for the design of thermal absorbers and emitters.

Zhu, Linxiao; Fan, Shanhui

2014-12-01

500

12. VIEW OF CAUSEWAY, NORTH ELEVATION, SHOWING DETAIL OF STAIRWAY ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

12. VIEW OF CAUSEWAY, NORTH ELEVATION, SHOWING DETAIL OF STAIRWAY BETWEEN CANAL STREET/COMMERCIAL STREET, PROVIDING ACCESS TO CAUSEWAY DECK, LOOKING SOUTHWEST. RAILING DETAILS ARE WROUGHT IRON - Notre Dame Bridge, Spanning Merrimack River on Bridge Street, Manchester, Hillsborough County, NH