نتایج جستجو برای: environ ment protection

تعداد نتایج: 188336  

2013
Randall Lutter Craig Barrow Christopher J. Borgert James W. Conrad Debra Edwards Allan Felsot

Allen JG, McClean MD, Stapleton HM, Webster TF. 2008a. Critical factors in assessing exposure to PBDEs via house dust. Environ Int 34:1085–1091. Allen JG, McClean MD, Stapleton HM, Webster TF. 2008b. Linking PBDEs in house dust to consumer products using X-ray fluorescence (XRF). Environ Sci Technol 42(11):4222–4228. Harrad S, Abdallah M, de Wit C, Östman C, Bergh C, Covaci A, et al. 2010. Indo...

Journal: :Cancer research 1967
S D Vesselinovitch N Mihailovich

Exposure of newborn and infant mice to urethan results in a significantly higher incidence of hepatomas in male mice than in females. Sex of the animals, however, does not influence the development of malignant lymphomas, Harderian gland tumors, and lung adenomas. In the present study, the role of gonads in the development of urethan-induced hepatomas and other tumors has been investigated. Sev...

2002
JING PENG

Current machine perception techniques that typi cally use segmentation followed by object recognition lack the required robustness to cope with the large variety of situations encountered in real world naviga tion Many existing techniques are brittle in the sense that even minor changes in the expected task environ ment e g di erent lighting conditions geometrical distortion etc can severely de...

1995
Cynthia E. Irvine

The designs of applications for multilevel systems cannot merely duplicate those of the untrusted world When applications are built on a high assurance base they will be constrained by the underlying policy en forcement mechanism Consideration must be given to the creation and management of multilevel data struc tures by untrusted subjects Applications should be de signed to rely upon the TCB s...

Journal: :Mechanika 2023

This paper presents an intelligent formation operation mode (IFOM) based on straddle-type rapid transit vehicles. Taking the vehicles operating in IFOM as object, of vehicle is defined control system architecture system. In addition, considering heterogeneous environ-ment vehicles, evaluation index for proposed. Then, according to longitudinal dynamics model and artificial potential field algor...

2009
Bing Wang Borong Lin

The wind environment around a building influences human lives and the design of it. Simulation by CFD software is a main method used to study wind environment. But the reliability of the simulation result needs to be proved by comparing to the measured wind environment data. Experiment and simulation on wind environment were carried out in this reasearch. What’s more, different simulation metho...

2002
Franz Lehner Holger Nösekabel Hans Lehmann

This paper outlines the components of a mobile education system and lists selected examples of universities employing m−education. Several possible approaches in designing and installing such a system are discussed. The main focus is on the project WELCOME (Wireless E−Learning and Communication Environ− ment) at the University of Regensburg. We argue that mobile/electronic education should not ...

2008
Shu-Ye Wang Xue-Ming Song Li-Xiang Duan Zhe An

In the title compound, {[Cu(C(16)H(17)FN(3)O(3))(2)]·4H(2)O}(n), the Cu(II) atom is bonded to two O,O'-bidentate 1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-quinoline-3-carboxyl-ate (norf) monoanions and a symmetry-generated N-bonded norf anion, resulting in a distorted square-pyramidal coordination environ-ment with the N atom occupying the apical site. The bridging norf anion result...

2005
Raymond Gao

We have implemented a small-scale peer-to-peer based environ-ment called Comtella, which allows faculty, graduate and under-graduate students to contribute and share URLs of class-relatedresources, like academic and popular articles. The system hasbeen deployed for three months in a university course on ethicsand information technology with thirty-five undergraduate stu-...

1997
Alessandro Fabbri Lorenzo Donatiello

We investigate coordination languages as support for the implementation of parallel discrete event sim ulators In particular we show that the computational model provided by coordination languages and based on the shared space abstraction is a suitable environ ment for the implementation of a new event based methodology we call ActE Active Events ActE nat urally solves the state sharing problem...

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