نتایج جستجو برای: medium density polyethylene mdpe
تعداد نتایج: 657654 فیلتر نتایج به سال:
BACKGROUND The multitude of factors involved with a unilateral cleft lip nasal defect has spurred various surgical techniques in the past. Recently, synthetic materials have been introduced for use in nasal reconstruction. OBJECTIVE To report on and illustrate the use of porous high-density polyethylene implants in cleft lip nasal reconstruction. DESIGN A retrospective review of cleft lip n...
waste low density polyethylenes (ldpe) represent a source of energy and valuablechemicals, were pyrolysed catalytically in a batch reactor under atmospheric pressure. calciumcarbide was used as a catalyst to explore its effect on pyrolysis product distribution. the effect oftemperature, amount of catalyst and time on the yields of the pyrolysed products wasinvestigated. the effect of catalyst o...
in this study, effect of two genotype imputation strategies, relatedness between reference panel and test populations and minor allele frequency on imputation error rate were examined with using a stochastic simulated population. reference panel and test populations were composed of 1,000 and 500 individuals, respectively. individuals in the reference panel were genotyped with using a high and ...
Dabai or Canarium odontophyllum Miq., from the family Burseraceae, is an important indigenous fruit to Borneo Island. However, it is a highly perishable fruit with short shelf life. Postharvest technology such as modified atmosphere packaging (MAP) can be used to maintain highly perishable fresh fruit quality and increase its shelf life. There is not much work has been carried out to study effe...
BACKGROUND In open TCI and anaesthesia display systems, the choice of pharmacokinetic (PK) parameter sets of opioids is clinically relevant. Accuracy and bias of the PK models may be affected by administration mode and the co-administered hypnotic drug. We retrospectively evaluated the performance of eight PK parameter sets for alfentanil in two data sets (infusion and bolus application). MET...
Plastic in any form is a nuisance to the well-being of the environment. The 'pestilence' caused by it is mainly due to its non-degradable nature. With the industrial boom and the population explosion, the usage of plastic products has increased. A steady increase has been observed in the use of plastic products, and this has accelerated the pollution. Several attempts have been made to curb the...
Aboveground liquid storage tanks are often found on weak compressive soil due to their proximity harbours and rivers. These conditions lead a high probability of significant soil-structure interaction (SSI) under earthquake loading. In strong earthquakes, the transient partial separation tank base from supporting medium (uplift) chaotic sloshing cause damage wall. This experimental research det...
This study examined HDPE (high-density polyethylene) plastic waste as an added material for concrete mixtures. The selection of was based on its increased strength, hardness, and resistance to high temperatures compared with other plastics. It focused how can be used additive in increase tensile strength compressive strength. 156 specimens were identify the effect adding different percentages s...
in the present work, a titanium-based ziegler-natta catalyst was employed to synthesize ultra molecular weight polyethylene in a slurry medium. the effect of different parameters such as ethylene pressure, temperature, catalyst composition, and hydrogen pressure was studied. as the results indicate, increasing either [al]/[ti] ratio or temperature causes polymerization rate to go through a maxi...
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