The sequential extraction of Cr from soil to soil eluates was studied. The influence of conditions of soil sample preparation and conditions of eluates obtained in the final result of Cr extraction from soil and its determination were found. Conditions protecting the total extraction of Cr from soil to solutions were

Sequential extraction is a useful method of identifying how toxic trace metals bind to soil particles and the strength of these bonds. This is very essential knowledge to reach an efficient soil washing when dealing with remediation of metal-contaminated soil. Sequential extraction uses a succession of extractions on a soil same sample, with extraction liquids expected to promote decreasing mob...

We present here a novel surface mass spectrometry strategy to perform untargeted metabolite profiling of formalin-fixed paraffin-embedded pediatric ependymoma archives. Sequential Orbitrap secondary ion (3D OrbiSIMS) and liquid extraction analysis-tandem (LESA-MS/MS) permitted the detection 887 metabolites (163 chemical classes) from tumor tissue microarrays (diameter: <1 mm; thickness: 4 ?m). ...

Recently, several studies have reported on combined procedures for the determination of radionuclides in soils or sediment samples with extraction chromatographic materials such as the TRU, Sr and TEVA Spec resins. These methods are somewhat difficult to apply for very low levels of fallout radionuclides without using large amounts of extraction chromatographic resin. Therefore, it is necessary...

The two most important tasks in entity information summarization from the Web are named entity recognition and relation extraction. Little work has been done toward an integrated statistical model for understanding both named entities and their relationships. Most of the previous works on relation extraction assume the named entities are pre-given. The drawbacks of these sequential models are t...

For the first time, a method for sequential extraction of silicon (Si) from soils has been developed. This new method enables investigating different Si pools in soils and thus represents an important contribution to improve our understanding of biogeochemical Si-processes and global Si-cycling. The method fractionates and analyses various Si-pools, from the most mobile to immobile phases in so...

breast cancer is the most common type of cancer among women. the important key to treat the breast cancer is early detection of it because according to many pathological studies more than 80% of all abnormalities are still benign at primary stages; so in recent years, many studies and extensive research done to early detection of breast cancer with higher precision and accuracy.infra-red breast...

As a unique and promising biometric, video-based gait recognition has broad applications. The key step of this methodology is to learn the walking pattern individuals, which, however, often suffers challenges extract behavioral feature from sequence directly. Most existing methods just focus on either appearance or motion pattern. To overcome these limitations, we propose sequential convolution...