Sensor drift is an inevitable measurement problem and is particularly significant in the long term. The common practice is to have an auto-calibration facility (including standard buffers or accurate integrated actuators) mounted on the monitoring system. However, this approach may not be feasible when the monitoring system is miniaturized to the size of a capsule. In this paper, we develop an ...

Morphogenesis in plants is characterized by highly regulated cell enlargement. However, the mechanisms controlling and localizing regions of growth remain essentially unknown. Root hair formation involves the induction of a localized cell expansion in the lateral wall of a root epidermal cell. This expanded region then enters a second phase of localized growth called tip growth. Root hair forma...

We consider a general QBD process as defining a FIFO queue and obtain the stationary distribution of the sojourn time of a customer in that queue as a matrix exponential distribution, which is identical to a phase-type distribution under a certain condition. Since QBD processes include many queueing models where the arrival and service process are dependent, these results form a substantial gen...

Recently, it has been reported that biological phosphorus removal (BPR) can be induced by an aerobic/extended-idle (AEI) regime. This study further investigated the effect of initial pH ranging from 6.6 to 8.2 on BPR in the AEI process, and compared the BPR performance between the AEI and the anaerobic/oxic (A/O) regimes under their optimal initial pH value. Experimental results firstly showed ...

Faculty often wish to devote time and resources to improve a course to be more in line with principles of how people learn but are not sure of the best path to follow. We present our tested approach to research-based course transformation, including development of learning goals, instructional materials based on student difficulties, and assessment to see whether the approach worked. This metho...

We present a self-contained formulation of the Nonlinear Schrödinger hierarchy and its Yangian symmetry in terms of deformed oscilator algebra (Z.F. algebra). The link between Yangian Y (glN ) and finite W (glpN , N.glp) algebras is also illustrated in this framework. To be published in the proceedings of QGIS-99, Prague, June 17-19 1999 July 1999 LAPTH-743/99-Conf hep-th/9907218 [email protected]...

We establish heavy-traffic stochastic-process limits for queue-length, waiting-time and overflow stochastic processes in a class of G/GI/n/m queueing models with n servers and m extra waiting spaces. We let the arrival process be general, only requiring that it satisfy a functional central limit theorem. To capture the impact of the service-time distribution beyond its mean within a Markovian f...

much amount of solid waste disposed from human communities, daily. considerable part of these solids is organic waste that recycling and utilization of it by miscellaneous methods to holdup of damage to environment and maintenance of resources and energy is noteworthy for human. one of suitable methods for disposal of these wastes is production of organic fertilizer by use of vermicompost metho...