نتایج جستجو برای: extraction mechanism

تعداد نتایج: 725733  

Journal: :international journal of environmental research 2011
a. alimohammad kalhori h.r. jafari a.r. yavari e. prohić t. ahmadzadeh kokya

this study was conducted in assaluyeh region, southwest of iran to show utilization and efficiency of sequential extraction analysis in environmental impact studies using soil and related regolith materials as sample media. in order to investigate distribution of heavy metals, optimized bcr (community bureau of reference) sequential extraction analysis method was used. in this caseeight repres...

Journal: :international journal of environmental research 0
a. alimohammad kalhori department of environmental management & planning, graduatefaculty of environment, university of tehran,tehran, iran h.r. jafari department of environmental management & planning, graduatefaculty of environment, university of tehran,tehran, iran a.r. yavari department of environmental management & planning, graduatefaculty of environment, university of tehran,tehran, iran e. prohić department of geology, faculty of sciences, university of zagreb, zagreb, croatia t. ahmadzadeh kokya department of environmental engineering, graduate faculty of environment, university of tehran, tehran, iran

this study was conducted in assaluyeh region, southwest of iran to show utilization and efficiency of sequential extraction analysis in environmental impact studies using soil and related regolith materials as sample media. in order to investigate distribution of heavy metals, optimized bcr (community bureau of reference) sequential extraction analysis method was used. in this caseeight represe...

1997
Kevin Humphreys Robert J. Gaizauskas Saliha Azzam

We propose a general approach for performing event coreference and for constructing complex event representations, such as those required for information extraction tasks. Our approach is based on a representation which allows a tight coupling between world or conceptual modelling and discourse modelling. The representation and the coreference mechanism are fully implemented within the LaSIE in...

2016
Deli Xiao Chan Zhang Jia He Rong Zeng Rong Chen Hua He

Simple, accurate and high-throughput pretreatment method would facilitate large-scale studies of trace analysis in complex samples. Magnetic mixed hemimicelles solid-phase extraction has the power to become a key pretreatment method in biological, environmental and clinical research. However, lacking of experimental predictability and unsharpness of extraction mechanism limit the development of...

Journal: :international journal of automotive engineering 0
pramanik

kinematic synthesis of a trailing six-member mechanism has been carried out to achieve five precision points of an automotive steering mechanism. the inner wheel can be rotated up to forty five degrees with fair accuracy. results show that the divergent end behavior of ackermann steering mechanism has been overcome by the present mechanism. the work is similar to earlier work by the present aut...

2001
Sanda M. Harabagiu Mihai Surdeanu Paul Morarescu

Information Extraction (IE) systems typically rely on extraction patterns encoding domain-specific knowledge. When matched against natural language texts, these patterns recognize with high accuracy information relevant to the extraction task. Adapting an IE system to a new extraction scenario entails devising a new collection of extraction patterns a time-consuming and expensive process. To ov...

Journal: :JCM 2016
Kejiang Xiao Rui Wang Lei Zhang Lei Xu

—Due to the limitation of sensor size and cost, in order to implement vehicle detection by magnetic wireless sensor network, it attaches importance to the two important problems, vehicle detection and feature extraction, with facing the challenge of low signal-to-noise ratio and limited resources. In this paper, we propose a mechanism to accomplish vehicle monitoring, namely CBNP. In this mech...

Journal: :Circulation research 1977
N A Mortillaro H J Granger

Arterial flow and oxygen extraction were continuously measured from an in situ, denervated loop of cat ileum. Following release of arterial occlusion of varying time periods, oxygen extraction decreased transiently, returning to control levels as the hyperemia subsided. These results suggest that the hyperemia overcompensates in attempting to repay the oxygen deficit and, consequently, oxygen e...

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