This paper applies Data Envelopment Analysis (DEA) and Elasticity Analysis to an empirical assessment study on innovation ability and innovation potentiality. According to inputs and outputs data of these innovative enterprises, we build CCR model, BCC model and Elasticity model to measure their innovation ability and innovation potentiality. The results show that innovation ability is varied b...

Abstract Before a wide range of enhanced oil recovery (EOR) techniques were implemented for an oilfield, the EOR potential and economic evaluation should be evaluated in advance each reservoir to determine which technique was proper. In oilfield developed with fluvial delta reservoirs, complicated distribution scattered small reservoirs vertical horizontal directions brought trouble work. A rap...

BZ26-6 Oilfield is a kind of deep metamorphic rock buried-hill volatile oilfield in Bohai Sea, China. Its early development plan restricted due to the simultaneous production oil and gas large sections reservoirs, unclear understanding formation fluid properties uncertainty gas-oil interface. Through theoretical research on phase recovery experimental analysis crude characteristics original for...

§1. Conjectures Let V be a variety over C and let B = ∑ biBi be an effective Q-Weil divisor on V such that bi ≤ 1 for any i. Such a pair (V,B) will be called a log variety. It is said to be log terminal if it has only weak log terminal singularities in the sense of [KMM]. In this case, the Q-bundle KV + B is called the log canonical bundle of (V,B) and will be denoted by K(V,B). A Q-bundle L on...

This paper studies two functions arising separately in the analysis of algorithms. The first function is the solution to the Multidimensional Divide-And-Conquer (MDC) Recurrence that arises when solving problems involving points in d-dimensional space. The second function concerns weighted digital sums. Let n = (bibi−1 · · · b1b0)2 and SM (n) = ∑i t=0 t(t + 1)(t + 2) · · · (t + M − 1)bt2 , and ...

14C is an overwhelming background in low-background underground experiments, to the point where the observation of the all-important (pp) neutrinos from the Sun can not be observed in carbon-containing experiments. This paper shows that 14C purity can be improved by four orders of magnitude by a careful selection of the gas field. Two large reduction factors are at work: the low chemical affini...

To increase the oil production for the Tordis subsea oilfield located at the Norwegian Continental Shelf, a subsea separation and boosting station will be installed. Most of the water will be injected into a subsea reservoir instead of being transported up to the platform. Several challenges conserning process control need to be addressed before the implementation process, and dynamic simulatio...