Jan Dirk Jansen

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The characteristics of the rat epidydimal adipocyte beta-adrenoceptor have been examined using lipolysis and cyclic AMP accumulation in adipocytes as well as adenylate cyclase activity in fat cell membranes. The pA2 values corrected for binding to bovine serum albumin of the selective antagonists betaxolol (beta 1-selective) and ICI 118.551 (beta(More)
In oil production waterflooding is a popular recovery technology, which involves the injection of water into an oil reservoir. Studies on model-based dynamic optimization of waterflooding strategies have demonstrated that there is a significant potential to increase life-cycle performance, measured in Net Present Value. However, in these studies the(More)
We present the case of a patient who died of thymoma-induced immunological dysfunction. The neoplasm was unsuspected antemortem because of its location adjacent to the right hemidiaphragm. This appears to be the most caudad ectopic position yet encountered for a thymoma.
  • J D Jansen
  • 1984
Careful, independent scientific reviews of issues of importance in mutagenesis and carcinogenesis evaluations have been made over the past seven years by a group of leading members of several environmental mutagen societies. The International Commission for Protection against Environmental Mutagens and Carcinogens (ICPEMC) supports five main committees(More)
— Studies on dynamic real-time optimization (D-RTO) of waterflooding strategies in petroleum reservoirs have demonstrated that there exists a large potential to improve economic performance in oil recovery. Unfortunately, the used large-scale, nonlinear, physics-based reservoir models suffer from vast parametric uncertainty and generally poor short-term(More)
This paper concerns the computation of near-well flow in numerical reservoir simulation with unstructured grids. In particular, it uses spherical trigonometry to derive analytical expressions for the flow towards a well modeled as either a number of point sources or a constant-flux line source. The expression for the point source representation is based on(More)
This paper describes a recently introduced methodology to perform value of information (VOI) analysis within a closed-loop reservoir management (CLRM) framework, and adds a first step to improve the computational efficiency of the procedure. CLRM is a combination of model-based optimization and model-parameter identification applied to large-scale models of(More)