In this study the effects of temperature on anaerobic co-digestion of saw dust with cattle dung is investigated. It also simulates the biogas production from saw dust with cattle dung at various temperatures. Results showed that high temperature could improve the anaerobic digestion and hence increase the biogas production rates. The operating temperatures used in this study were 35°C, 45°C, an...

Measuring the quality of plot is a desirable feature for computational narrative systems. One of the notions of plot quality used in narrative theory is called tellability, which can be derived from certain structural properties, namely the types of events present and the way they are connected. These structures include not only actualized events, but also take into account virtual plans and th...

In this paper we study recurrences concerning the combinatorial sumˆn r

Motivated by recent work of Trümper, we consider the general Collatz word (updown pattern) and the sequences following this pattern. We derive recurrences for the first and last sequence entries from repeated application of the general solution of a binary linear inhomogeneous Diophantine equation. We solve these recurrences and also discuss the Collatz tree.

We give the first comprehensive collection of enumeration results for permutations that avoid barred patterns of length 6 4. We then use the method of prefix enumeration schemes to find recurrences counting permutations that avoid a barred pattern of length > 4 or a set of barred patterns.

What is functionalism? Both Silverstein (1987) and Nichols (1984) have analyzed in detail the variety of ways functionalism has been used by linguists. Silverstein made a division into four types of functions, referential and pragmatic: (a) `sense-structure', (b) the `abstract, "sentence"-internal distribution of forms,' (c) the `use of signal forms for purposive, intentional social effect' (d)...

We give a model of the K-ring of the flag varieties in terms of a certain braided Hopf algebra called the Nichols-Woronowicz algebra. Our model is based on the construction of the path operators by C. Lenart and A. Postnikov.