In this paper, we present DLSH Distributed Locality Sensitive Hashing , a similar-data search technology. The huge growth in the size of video content has broken the traditional multi-media index ...hosting and look-up solutions, these are not able to scale to the size of the current and projected index requirements. Distributed LSH (D-LSH) addresses this need of a highly scalable multi-media index. DLSH performs better for finding approximate near neighbors on extremely large scales , as DLSH distributes close points on single boxes, and far points on different boxes based on projections.
In assessing the painful ear, consider the site, quality and timing of pain, radiation of pain to other sites, and aggravating or relieving factors. Sudden lancing pain may suggest a neuralgia, ...whereas pain with mastication suggests a temporomandibular joint disorder. Associated features such as vertigo, tinnitus, hearing loss or ear discharge suggest primary ear disease.
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We studied the effect of aluminum on lead‐induced nephropathy in male albino rats. Five groups of male albino rats were given either water only or lead acetate (125 mg/kg body weight) and/or ...aluminum chloride (50 mg/kg body weight or 100 mg/kg body weight) for a period of 90 days. Aluminum was found to prevent the lead‐induced increase in the relative organ (kidney) weight in a dose‐dependent manner. Aluminum also prevented lead‐induced increase in plasma creatinine levels of the treated animals. Estimation of lead concentration in kidneys of different treatment groups revealed that the net deposition of lead was lower in animals which were given both lead acetate and aluminum chloride simultaneously. The results showed that aluminum offers some protection against lead‐induced nephrotoxicity in a time‐ and dose‐dependent manner.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
The failure of the Sleipner offshore oil platform in 1991 indicated that serious deficiencies exist in the current design procedures for shear design of reinforced concrete members subjected to axial ...compression. The current design requirements of the ACI code are based on a few tests conducted with relatively low strength concrete in the 1960s. To investigate the shear behaviour of reinforced concrete members subjected of high levels of axial compression and shear, twenty four tests were conducted on lightly reinforced members subjected to different levels of axial compression and shear. The main variables in the study were the ratio of axial compression-to-shear, stirrup reinforcement ratio, concrete strength and specimen width. The results clearly indicate that the current detailed ACI procedure for shear design of members subjected to axial compression can be unconservative for members under moderate and high levels of axial compression. It is recommended that the detailed procedure be eliminated from future editions of the ACI code. The simple alternate method specified by the ACI code was able to predict the experimental results conservatively with more consistency than the detailed method. The AASHTO-LRFD procedure was able to predict the strength as well as the mode of failure consistently. More detailed procedures based on the modified compression field theory were able to predict not only the strength but also the deformation behaviour of the test specimens with good accuracy. No beneficial influence of increasing the strength of concrete beyond 70 MPa was observed in the tests. Specimens with very high strength concrete of over 80 MPa were found to be weaker than similar members with 60 MPa concrete. The current analysis and design procedures do not account for this anomaly. It is postulated that the reduced “aggregate interlock” capacity due to smoother crack surfaces for higher strength concrete partly contributes to the reduced shear capacity. Fifteen “push off” type of shear friction tests were conducted in the study to evaluate the influence of fracture of coarse aggregate particles on the crack surface. The results indicate that the shear friction capacity of cracked concrete with fractured aggregates on the surface was substantially lower compared to concretes with no fractured aggregates on the surface. Based on the experimental results a simple model to account for the reduction in shear capacity due to fracture of coarse aggregates is suggested. Specimens under very high levels of axial compression usually fail at first cracking. Based on well known tests by Kupfer a simple strain based model for reduction of the concrete cracking strength under conditions of combined compression and tension is proposed. The proposed models were incorporated into a simplified sectional analysis program that is based on the modified compression field theory. The models improved the predicted behaviour for members under higher levels of axial compression.
Lately, Y Combinator has been taking founders with business backgrounds if they have robust project management skills and core expertise in their field. ...having a complementary skillset is a bonus ...for founders in paving their road to Y Combinator. ...Shopify for doctors in India vs Empowering doctors in an online world. ...to create a winning Y Combinator application, give useful information related to the business and expected growth. ...getting to the point and impressing Y Combinator partners with quality makes a huge difference to the application. ...share information in the form of metrics and in the cleanest way possible to be on the list of Y Combinator companies.
The PACE (Pre-Aerosol, Clouds and ocean Ecosystem) mission, anticipated for launch in the early 2020s, is designed to characterize oceanic and atmospheric properties. The primary instrument ...on-‐board will be a moderate resolution (approximately 1 km nadir) radiometer, called the Ocean Color Instrument (OCI). OCI will provide high spectral resolution (5 nm) from the UV to NIR (350 - 800 nm), with additional spectral bands in the NIR and SWIR. The OCI itself is an excellent instrument for atmospheric objectives, providing measurements across a broad spectral range that in essence combines the capabilities of MODIS and OMI, but with the UV channels from OMI to be available at moderate resolution. (Image credit: PACE Science Definition Team Report). Objective: Can we make use of the UV-SWIR measurements to derive information about aerosol absorption when aerosol loading is high?
An Overview of the GEOS-5 Aerosol Reanalysis da Silva, Arlindo; Colarco, Peter Richard; Damenov, Anton Spasov ...
NASA Center for AeroSpace Information (CASI). Conference Proceedings,
12/2011
Conference Proceeding
GEOS-5 is the latest version of the NASA Global Modeling and Assimilation Office (GMAO) earth system model. GEOS-5 contains components for atmospheric circulation and composition (including data ...assimilation), ocean circulation and biogeochemistry, and land surface processes. In addition to traditional meteorological parameters, GEOS-5 includes modules representing the atmospheric composition, most notably aerosols and tropospheric/stratospheric chemical constituents, taking explicit account of the impact of these constituents on the radiative processes of the atmosphere. MERRA is a NASA meteorological reanalysis for the satellite era (1979-present) using GEOS-5. This project focuses on historical analyses of the hydrological cycle on a broad range of weather and climate time scales. As a first step towards an integrated Earth System Analysis (IESA), the GMAO is extending MERRA with reanalyses for other components of the earth system: land, ocean, bio-geochemistry and atmospheric constituents. In this talk we will present results from the MERRA-driven aerosol reanalysis covering the Aqua period (2003-present). The assimilation of Aerosol Optical Depth (AOD) in GEOS-5 involves very careful cloud screening and homogenization of the observing system by means of a Neural Net scheme that translates MODIS radiances into AERONET calibrated AOD. These measurements are further quality controlled using an adaptive buddy check scheme, and assimilated using the Local Displacement Ensemble (LDE) methodology. For this reanalysis, GEOS-5 runs at a nominal 50km horizontal resolution with 72 vertical layers (top at approx. 8Skm). GEOS-5 is driven by daily biomass burning emissions derived from MODIS fire radiative power retrievals. We will present a summary of our efforts to validate such dataset. The GEOS-5 assimilated aerosol fields are first validated by comparison to independent in-situ measurements (AERONET and PM2.5 surface concentrations). In order to asses aerosol absorption on a global scale, we perform a detailed radiative transfer calculation to simulate the UV aerosol index, comparing our results to OMI measurements. By simulating aerosol attenuated backscatter, we use CALIPSO measurements to evaluate the vertical structure of our aerosol estimates, in particular in regions where we have larger discrepancies with OMI. Finally, the consistency of our AOD estimates with estimates from MISR, MODIS/Deep Blue, OMI and PARASOL will be briefly discussed.
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