the paper attempts to study the efficiency of crop production and resource use effi-ciency on temple tenants and owner farms in tirunelveli district of tamil nadu. a sam-ple of 90 temple tenants and 50 owner farmers from two taluks of tirunelveli district, nawely, shencottah and tenkasi were selected for the study. the reference period of the study was 2002-2003. the efficiency analysis with th...

Colloidal quantum dots (QDs) offer greatly advantageous features including high emission effi ciency, [ 1,2 ] narrow emission linewidth, [ 3,4 ] tunable emission wavelength, [ 5,6 ] and low-cost solution-processing, [ 7 ] making them one of the most promising materials for lighting-emitting diodes (LEDs). Recently, current-driven quantum dot lighting-emitting diodes (QLEDs) have been intensivel...

HPF was originally created to simplify high-level programming of parallel computers. The inventors of HPF strove for an easy-to-use language which was intended to enable portability and e ciency. However, up until now the desired e ciency has not been reached. On the contrary, HPF programs are notorious for their poor performance. This paper provides a rehabilitation of HPF. It is demonstrated ...

Recent advances in achieving textbook multigrid e ciency for uid simulations are presented. Textbook multigrid e ciency is de ned as attaining the solution to the governing system of equations in a computational work which is a small multiple of the operation counts associated with discretizing the system. Strategies are reviewed to attain this e ciency by exploiting the factorizability propert...

We consider cellular mobile systems where in order to limit hando blocking probability, admission control is applied to new call requests and capacity is reserved for future hando attempts. We show that due to this advance reservation the achievable e ciency of the system has an upper bound even if no constraint is speci ed on the blocking probability of new call requests. As a reference case, ...

This paper analyzes two popular heuristics for ensur ing packet integrity in ATM switching systems In particular we analyze the behavior of packet tail dis carding in order to understand how the packet level link e ciency is dependent on the rates of individual virtual circuits and the degree of the imposed over load In addition we study early packet discard and show that the queue capacity nee...

The e ciency and accuracy of several time integration schemes are investigated for the unsteady Navier-Stokes equations. This study focuses on the e ciency of higher-order Runge-Kutta schemes in comparison with the popular Backward Di erencing Formulations. For this comparison an unsteady two-dimensional laminar ow problem is chosen, i.e. ow around a circular cylinder at Re=1200. It is conclude...

in this paper, downlink resource allocation for a sparse code multiple access (scma) based heterogeneous  cellular networks (hcn) is investigated. the main aim of this paper is to obtain joint power allocation and codebook assignment to achieve the least total system transmit power. in this regard, the proposed objective function is formulated as total transmit power subject to users minimum ra...