نتایج جستجو برای: interior materials

تعداد نتایج: 470770  

2013
Zhijia Liu John F. Hunt Zhiyong Cai

Fiberboard is a common interior material used both in China and the United States of America. The increase in demand for interior materials has raised concerns regarding combustibility of the materials. The pyrolysis characteristics of fiber, phenolic resin (PF), and nano kaolinclay (NK) were investigated using thermogravimetry. The fire performances of samples coated with a mixture of NK and P...

2013
Peng Guo Kazuhito Yokoyama Fengyuan Piao Kiyoshi Sakai Md Khalequzzaman Michihiro Kamijima Tamie Nakajima Fumihiko Kitamura

This study assessed subjective symptoms related to indoor concentrations of chemicals among residents in a housing estate in Dalian, China, where indoor air pollution by interior decoration materials has recently become a major health problem. Fifty-nine males and 50 females were surveyed for their symptoms related to sick building syndrome. Formaldehyde (HCHO), NO2, and volatile organic compou...

An infeasible interior-point algorithm for mixed symmetric cone linear complementarity problems is proposed. Using the machinery of Euclidean Jordan algebras and Nesterov-Todd search direction, the convergence analysis of the algorithm is shown and proved. Moreover, we obtain a polynomial time complexity bound which matches the currently best known iteration bound for infeasible interior-point ...

2016
Wei Li Hailong Deng Pengfei Liu

The interior defect-induced fracture of surface-hardened metallic materials in the long life region has become a key issue on engineering design. In the present study, the axial loading test with fully reversed condition was performed to examine the fatigue property of a surface-carburized low alloy gear steel in the long life region. Results show that this steel represents the duplex S-N (stre...

We present a modified version of the infeasible-interior- We present a modified version of the infeasible-interior-point algorithm for monotone linear complementary problems introduced by Mansouri et al. (Nonlinear Anal. Real World Appl. 12(2011) 545--561). Each main step of the algorithm consists of a feasibility step and several centering steps. We use a different feasibility step, which tar...

Journal: :PloS one 2016
Dorothy Y Maguire Christopher M Buddle Elena M Bennett

Fragmentation changes the spatial patterns of landscapes in ways that can alter the flow of materials and species; however, our understanding of the consequences of this fragmentation and flow alteration for ecosystem processes and ecosystem services remains limited. As an ecological process that affects many ecosystem services and is sensitive to fragmentation, insect herbivory is a good model...

Journal: :journal of mathematical modeling 0
el amir djeffal department of mathematics, university of batna 2, batna, algeria lakhdar djeffal department of mathematics, university of batna 2, batna, algeria

in this paper, we deal to obtain some new complexity results for solving semidefinite optimization (sdo) problem by interior-point methods (ipms). we define a new proximity function for the sdo by a new kernel function. furthermore we formulate an algorithm for a primal dual interior-point method (ipm) for the sdo by using the proximity function and give its complexity analysis, and then we sho...

2004
Noah E. Petro Carlé M. Pieters

[1] The oldest, deepest, and largest basin recognized on the lunar surface is the South Pole-Aitken (SPA) basin. In the time since its formation, several processes have modified the original interior of the basin, including the introduction of foreign material by impact basins during the period of heavy bombardment. These later basins redistributed material ballistically across the lunar surfac...

2014
Hugh F. Wilson Burkhard Militzer

Planets such as 55 Cancri e orbiting stars with a high carbon-to-oxygen ratio are considered to consist primarily of silicon and carbon, with successive layers of carbon, silicon carbide and iron. The behaviour of silicon-carbon materials at planetary interior pressures at the extreme pressures prevalent in planetary interiors, however, has not yet been sufficiently understood. In this work we ...

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