نتایج جستجو برای: lost wax

تعداد نتایج: 79560  

Journal: :Dental materials journal 1984
N Katakura Y Araki M Kawakami S Kasahara

Thermal stresses in three brands of inlay waxes were numerically analyzed under different cooling conditions using the rheological and thermal properties of waxes. On the basis of this analysis , the shrinkage of the wax pattern was calculated. The larger the stress relaxation of the wax and the higher the ambient temperature, the smaller the thermal stress induced in the wax. The shrinkage of ...

Journal: :Electrophoresis 2009
Yao Lu Weiwei Shi Lei Jiang Jianhua Qin Bingcheng Lin

Here we present a simple and low-cost production method to generate paper-based microfluidic devices with wax for portable bioassay. The wax patterning method we introduced here included three different ways: (i) painting with a wax pen, (ii) printing with an inkjet printer followed by painting with a wax pen, (iii) printing by a wax printer directly. The whole process was easy to operate and c...

Journal: :Plant physiology 1950
E B Kurtz

Plants have been used as a source of wax for cenituries, and the search for plant species that produce more wax of a better quality has been in progress for as many years. It has been recognized only for the past few decades. however, that various factors other than plant species, such as environment, genetic make-up of the plant, and maturity of the plant, may affect the quality and quantity o...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2014
Thyge K Madsboell Rikke F Vestergaard Ted C Andelius Ellen M Hauge J Michael Hasenkam

OBJECTIVES One of the most frequent complications in cardiac surgery is postoperative bleeding from the sternum. To diminish the risk of bleeding, bone wax is frequently used for haemostasis. However, we have previously shown that bone wax impairs bone healing and induces inflammation in the sternum. A new, water-soluble polymer wax enriched with gentamicin has haemostatic properties similar to...

Journal: :international journal of nano dimension 0
l. abedi nano chemical engineering department, shiraz university, shiraz, iran. s. sabbaghi nano chemical engineering department, shiraz university, shiraz, iran. m. aezami chemistry department, yasouj university, yasouj, iran. s. sh. ayatollahi chemical engineering department, shiraz university, shiraz, iran.

most reservoir fluids contain heavy paraffinic compounds that may precipitate as a solid or solid like material called wax if the fluid is cooled down. wax precipitation is a phenomenon of considerable importance in oil industry. an increase in aggregation results in enhanced oil viscosity. this however causes significant negative effects on production, transportation and processing of crude oi...

2011
Suvi Santala Elena Efimova Matti Karp Ville Santala

BACKGROUND Wax esters are industrially relevant molecules exploited in several applications of oleochemistry and food industry. At the moment, the production processes mostly rely on chemical synthesis from rather expensive starting materials, and therefore solutions are sought from biotechnology. Bacterial wax esters are attractive alternatives, and especially the wax ester metabolism of Acine...

1999
Vladimir V. Usov

We discuss plausible locations of radiating regions in the magnetospheres of pulsars and argue that the mechanisms of pulsar radiation at different frequencies are closely connected with the locations of the radiating regions, especially in the radio range. If the region that is responsible for the bulk of the non-thermal radiation at some frequency is localized in the pulsar magnetosphere then...

In order to investigate the effect of using beeswax waste in combination with other organic matter as a substrate on some growth, physiological and biochemical parameters of borage in different irrigation regimes, an experiment was conducted in a factorial arrangement based on completely randomized design with three replications in 2017. The experimental treatments were irrigation interval in t...

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