This paper presents a computationally efficient method for solving generalized network problems with an additional linear constraint. The method is basically the primal simplex method specialized to exploit the topological structure of the problem. The method is similar to the specialization of Charnes and Cooper's Double Reverse Method by Meier, and Klingman and Russell for constrained pure ne...

PURPOSE Recent evidence suggests that regular exercise training plays a decisive role in maintaining homeostasis and promoting muscle and skeletal formation. However, the effect of downhill exercise training on osteogenesis-related factors is not well understood. METHODS Thus, we investigated the effect of uphill and downhill training on ovariectomy (OVX)-induced bone loss. After ovary remova...

We discuss the use of preconditioned conjugate gradients method for solving the reduced KKT systems arising in interior point algorithms for linear programming. The (indefinite) augmented system form of this linear system has a number of advantages, notably a higher degree of sparsity than the (positive definite) normal equations form. Therefore we use the conjugate gradients method to solve th...

We discuss the use of preconditioned conjugate gradients method for solving the reduced KKT systems arising in interior point algorithms for linear programming. The (indefinite) augmented system form of this linear system has a number of advantages, notably a higher degree of sparsity than the (positive definite) normal equations form. Therefore we use the conjugate gradients method to solve th...

Aims. We perform light curve inversion for 491 asteroids to retrieve phase parameters, rotation periods, pole longitudes and latitudes, convex triaxial ellipsoid shapes by using the sparse photometric observations from Gaia Data Release 2 dense ground-based DAMIT database. develop a method derivation of reference absolute magnitudes curves data, allowing comparative studies involving hundreds a...

Banks, Douglas, Horowitz and Martinec [1] recently argued that in the microcanonical ensemble for string theory on AdSm×S, there is a phase transition between a black hole solution extended over the Sn and a solution localized on the Sn. If we think of this AdSm×S geometry as arising from the near-horizon limit of a black m−2 brane, the existence of this phase transition is puzzling. We present...

Noise models are crucial for designing image restoration algorithms, generating synthetic training data, and predicting algorithm performance. However, to accomplish any of these tasks, an estimate of the degradation model parameters is essential. In this paper we describe a parameter estimation algorithm for a morphological, binary image degradation model. The inputs to the estimation algorith...

In general-purpose parallel and distributed systems, performance of the protected and virtualized user-level communications and synchronizations is the most crucial issue to realize efficient execution environments. We proposed a novel high-speed user-level communication and synchronization scheme “Memory-Based Communication Facilities (MBCF)” for a general-purpose system with an off-the-shelf ...

The leukocyte heat shock response (HSR) is used to determine individual's thermotolerance. The HSR and thermotolerance are enhanced following interventions such as preconditioning and/or acclimation/acclimatization. However, it is unclear whether the leukocyte HSR is an appropriate surrogate for the HSR in other tissues implicated within the pathophysiology of exertional heat illnesses (e.g., s...