Methods are disclosed for producing architectural preforms and high-temperature composite structures containing high-strength ceramic fibers with reduced preforming stresses within each fiber, with an in-situ grown coating on each fiber surface, with reduced boron within the bulk of each fiber, and with improved tensile creep and rupture resistance properties tier each fiber. Food product is pumped to the diaphragm, which shapes the product in accordance with settings from an encoder. The processor determines a value of the correlation index by selecting a plurality of strike prices for each of the index and stock options, computing a constant flat implied volatility for an index and a plurality of stocks on a first date, and computing the plurality of deltas using the plurality of constant flat implied volatilities. The limiting boards and the bottom board cooperatively form a receiving chamber. Some compounds are testosterone-5\u03b1-reductase inhibitors and can be used in the treatment of hyperandrogenic disorders.