Polythene
Mostrando 1-9 de 9 artigos, teses e dissertações.
-
1. Desenvolvimento de software de modelagem de processos de sintese de polietileno e correlações entre propriedades das resinas / Development of a modelling software for polythylene synthesis process and of a correlation among polymers characteristics
Esta tese propõe a aplicação de Lógica Fuzzy para a modelagem de um processo de polimerização de eteno em baixa pressão para predição de propriedades de qualidade. O software de modelagem é inovador com relação à questão de relacionar como variável de saída, características da qualidade e de desempenho das resinas a partir de condições de
Publicado em: 2007
-
2. Performance evaluation in implants of polyethylene and tricalcium phosphate, covered by hydrogels, in osteochondral defects in dogs knees / Avaliação do desempenho de implantes de polietileno e de fosfato tricalcio, recobertos por hidrogel, em defeitos osteocondrais no joelho de cães
Este estudo teve como objetivo avaliar o desempenho in vivo, de implantes cilíndricos com altura e diâmetro de 5mm formados por cerâmica ?-tricálcio fosfato (?-TCP) ou polietileno de ultra-alto peso molecular (PEUAPM) todos recobertos com hidrogel de poli (2-hidroxi etil metacrilato) - poli(metacrilato de metila-co-ácido acrílico) (75:25) (pHEMA/poli (
Publicado em: 2007
-
3. POLYTHENE TUBES IN CANALICULUS SURGERY*
-
4. The Polythene Pack Operation for Pulmonary Tuberculosis
-
5. Use of buffered hypochlorite solution for disinfecting fibrescopes.
The possible use of sodium hypochlorite solution buffered to pH 7.6 and containing 100 ppm available chlorine (avCl) for disinfecting fibrescopes was investigated. A flexible fibrescope experimentally contaminated with Pseudomonas putida, Mycobacterium fortuitum, or Bacillus subtilis spores was effectively disinfected within 10 m in repeatedly and without an
-
6. Some Hazards in the Manufacture and Use of Plastics
The expansion of the plastics industry during the last few years has introduced the possibility of hazards from new polymers and from modifications to old products. The first two sections of this paper deal with the diminishing incidence of dermatitis in synthetic resin plants using formaldehyde and with the toxic properties of some chemicals added during th
-
7. Mesenteric blood pressure profile of conscious, freely moving rats.
1. Blood pressure has been measured in the aorta and at four points in the mesenteric circulation of conscious, freely moving rats under physiological, resting conditions. 2. Using small polythene catheters, blood pressure was measured simultaneously in the aorta and either distally in the superior mesenteric artery (group A), at the base of a mesenteric art
-
8. The possible relation between mastication and parotid secretion in the rabbit.
Salivary flow has been recorded from conscious rabbits during 1 min periods whilst continuously chewing standard laboratory dry pellets or pieces of carrot and, in some animals, a mash of pellets with water. Flow was measured using contact drop recorders or a continuous flow recorder via Polythene tubes permanently inserted into one or both parotid ducts. La
-
9. Effects of an external resistance on maximum flow in chronic obstructive lung disease: implications for recognition of coincident upper airway obstruction.
To determine how the presence of generalised airflow limitation due to chronic obstructive lung disease affects the recognition of simulated upper airway obstruction, a study was carried out in 12 patients (mean (SD) age 57 (7) years) with chronic obstructive lung disease (FEV1% predicted 53 (22), range 21-70) and 12 matched control subjects. Patients and co