Management actions to control invasive aquatic species can have significant ecosystem-scale effects. We evaluated the water chemistry and nutrient effects of mechanical shredding to control water hyacinth (Eichhornia crassipes) in an agricultural slough and a tidal wetland on the Sacramento-San Joaquin River Delta, California. Shredding was conducted with two types of shredder boats in fall of ...

Experiments are discussed in which cane, either after having been prepared in a Waddell shredder, or in the form of chips was subjected to pressure in a press and the expressed juice fractions were tested for brix. The effect of shredding on the brix pattern of the consecutive fractions is discussed as also the interest it may have in connection with practical milling. In another series of test...

Most of the human population lives in cities, and understanding their impact on freshwater environments is essential. Streams cities face many environmental challenges that have been described concept Urban Stream Syndrome. This illustrates urban streams’ biological, hydrological, chemical, physical stressors. In tropical streams, these stressors shrimp, fish, insects, other macroinvertebrates ...

Food availability can strongly affect predator-prey dynamics. When change in habitat condition reduces the availability of one prey type, predators often search for other prey, perhaps in a different habitat. Interactions between behavioural and morphological traits of different prey may influence foraging success of visual predators through trait-mediated indirect interactions (TMIIs), such as...

Sugar extraction from cane requires shredding and crushing, both of which are energy intensive activities. Cane shredders account for almost 30% of the total power requirements for the juice extraction train in a sugar mill with four mills. Shredder hammers also wear quickly during the crushing season and need to be regularly maintained or replaced. Microwave pre-treatment of other plant based ...

This study characterized and removed ash from waste-derived char to improve the quality of char as fuel. Municipal solid waste (MSW) and automobile shredder residue (ASR) were carbonized at 450 degrees C and at 500 degrees C, respectively, in a rotary kiln with a nitrogen atmosphere for 1h. MSW and ASR char were subjected to sieving and pulverization-sieving to screen incombustibles and the ash...

We consider the following problem: given a k-(node) connected graph G find a smallest set F of new edges so that the graph G + F is (k + 1)-connected. The complexity status of this problem is an open question. The problem admits a 2approximation algorithm. Another algorithm due to Jordán computes an augmenting edge set with at most d(k− 1)/2e edges over the optimum. C ⊂ V (G) is a k-separator (...

The article considers conditions for partial grinding of a frozen meat block in case detection extraneous inclusion it by the raw material input control system. processing materials occurs on an automated in-line production line products using single-stage chopping process. authors stipulate continuous inspection all blocks with full automation operations. Localization layer containing solves t...