Superhydrophobic surfaces let water droplets roll off with low friction and falling droplets rebound, leaving the surfaces completely dry. Such extremely water repellent surfaces are found in nature on lotus leaves, the legs of water striders and feather coatings of birds, and portray a beautiful example of ingenious biological design. They provide an exciting research avenue for physicists and...

Most studies on granular physics have focused on dry granular media, with no liquids between the grains. However, in geology and many real world applications (e.g., food processing, pharmaceuticals, ceramics, civil engineering, constructions, and many industrial applications), liquid is present between the grains. This produces inter-grain cohesion and drastically modifies the mechanical proper...

In the past a poor quality residue was frequently excused and accepted when incoming refuse had a high moisture content. This is no longer permissable. Means of coping with the wet refuse problem are summarized, based on reports from operators of IS municipal incinerators of various types, sizes and ages. The author's comments and conclusions are included.

The appearance of many natural materials is largely influenced by the environment in which they are situated. Capturing the effects of such environmental factors is essential for producing realistic synthetic images. In this work, we model the changes of appearance due to one such environmental factor, the presence of water or other liquids. Wet materials can look darker, brighter, or more spec...

One of the improvements introduced by the Romans was the public bath-house. This article discusses the formation of Jewish prayers, which were composed during the early rabbinic period, following the dangers of the public baths. Sages from late antiquity published two prayers: Before entering to the bathhouse, the bather has to pray for his safety, and after leaving the bath-house he has to tha...

The main goal was to optimise the thermal conditions within a diving suit and improve the user’s comfort. The wet diving suit consisted of (i) an external neoprene layer with air bubbles as additional insulation, and (ii) internal textile clothing to improve the insulation effect. Both layers were connected as a composite because the friction coefficient is very high. The core temperature shoul...

BACKGROUND Infection with Trichomonas vaginalis is one of the most common sexually transmitted diseases (STDs) in humans. The prevalence of infection in Iran has been reported between 2 to 8%, depending on deferent socio-cultural conditions. This study aimed to determine the prevalence of T. vaginalis in women referred to gynecologic clinics in Hamadan city, West of Iran. METHODS This descrip...

Distillers byproducts are excellent feed resources for feedlot cattle. Distillers byproducts are normally available for use in feedlot finishing diets in two forms, dried distillers and wet distillers byproducts (WDB). In general, there are two nutritional philosophies regarding their use in feedlot finishing diets. Distillers byproducts can be fed at 6 to 15% of the diet dry matter, serving pr...

This paper presents the development of a condition monitoring method for wet friction clutches which might be useful for automatic transmission applications. The method is developed based on quantifying the change of the relative rotational velocity signal measured between the input and output shaft of a clutch. Prior to quantifying the change, the raw velocity signal is preprocessed to capture...

Varicella gangrenosa, in which gangrenous ulceration of the skin and/or deeper tissues is seen, is a rare but alarming complication of Varicella infection. An early surgical intervention is generally advised, especially in case of sepsis and/or the presence of large necrotic lesions. We describe a case of a previously healthy 12-month-old boy presenting with sepsis due to Varicella gangrenosa. ...