نتایج جستجو برای: Polyurethane foam

تعداد نتایج: 20496  

2015
Ryusuke Fujisawa Naohisa Nagaya Shinya Okazaki Ryota Sato Yusuke Ikemoto Shigeto Dobata

Field robots are widely used to accomplish a variety of tasks in many different fields. However, setting of the locomotive ability of these robots at the design phase may prevent the traversal of unknown rough terrain. To address this shortcoming of existing robots, we designed a robot that is able to modify its environment by using polyurethane foam to construct auxiliary structures to facilit...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2003
Makoto Nagase Mineki Toba Hiroyuki Kondo Akio Yasuhara Kiyoshi Hasebe

A concentrated sulfuric acid dissolution technique and a GC method are described for the estimation of tributyl phosphate, tris(2-chloroethyl) phosphate, tris(chloropropyl) phosphate, tris(1,3-dichloro-2-propyl) phosphate, triphenyl phosphate and tris(butoxyethyl) phosphate in soft polyurethane foam. A soft polyurethane foam sample containing organophosphoric acid triesters was dissolved in con...

2011
Changyu Li Lili Liu Chuanyun Zhu

The renewable PUF was prepared by the alcoholysis of the used polyurethane foam composite and the polyurethane foam composite was also prepared by alkali lignin and renewable PUF. The renewable PUF was examined by GC-MS, the results showed the renewable PUF mainly consists of glycol, propanol and 1, 2-Benzenedicarboxylic acid, which can directly be used as the raw material of polyurethane foam ...

Journal: :iranian journal of public health 0
p.nassiri f. golbabaie s. nasseri m. mahmoodi k. mehrain

the importance of the use of activated charcoal tubes for sampling gases and vapors is very well-known. for producing these tubes in the country, their production started in the laboratory of the department of occupation al health using activated charcoal, polyurethane foam and glass wool and consequently two types of foamed and foamless tubes were produced. to investigate the quality of the ra...

Journal: :International wound journal 2014
Hajime Matsumura Ryutaro Imai Niyaz Ahmatjan Yukiko Ida Masahide Gondo Dai Shibata Katsueki Wanatabe

In recent years, adhesive wound dressings have been increasingly applied postoperatively because of their ease of use as they can be kept in place without having to cut and apply surgical tapes and they can cover a wound securely. However, if a wound dressing strongly adheres to the wound, a large amount of stratum corneum is removed from the newly formed epithelium or healthy periwound skin. V...

Journal: :Aesthetic surgery journal 2006
Neal Handel Jaime Gutierrez

BACKGROUND Polyurethane foam-covered silicone gel-filled breast implants, introduced in the 1970s, were used in more than 110,000 American women. Because of concerns about possible toxicity, they were withdrawn from the US market in 1991. These implants remain popular in many parts of the world. OBJECTIVE The goal of this study was to evaluate long-term experience with polyurethane foam-cover...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2001
J H Niazi T B Karegoudar

A Bacillus sp. which is capable of degrading dimethylphthalate (DMP) was immobilized in calcium alginate and polyurethane foam for efficient and long term degradation of DMP. Freely suspended cells (10(12) cfu ml-1) degraded a maximum of 20 mM DMP. Whereas, alginate-(10(12)cfu g-1 beads) and polyurethane foam-entrapped (0.34 x 10(6-9) cfu g-1 foam cubes) cells degraded a maximum of 40 mM DMP wi...

Journal: :Applied and environmental microbiology 1989
K T O'Reilly R L Crawford

Polyurethane-immobilized Flavobacterium cells (ATCC 39723) degraded pentachlorophenol (PCP) at initial concentrations as high as 300 mg liter-1. The reversible binding of PCP to the polyurethane was shown to be important in the protection of the cells from inhibition of PCP degradation. The degradation activity of the bacteria was monitored for 150 days in semicontinuous batch reactors. The deg...

Journal: :Japanese journal of infectious diseases 2007
Richard E Sherburn Tania E Webb Richard O Jenkins

A sensitive methodology for PCR detection of Staphylococcus aureus or Bordetella pertussis DNA within cot mattress polyurethane foam was developed. The assay's applicability was evaluated on polyurethane foam from used cot mattresses. S. aureus DNA was detected in 42% of mattresses of sudden infant death syndrome (SIDS) victims and 29% of comparison group (no death) mattresses tested. B. pertus...

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