[en] This document describes the SSF PLC Ladder Logic, Cross references, and the software that was used to control the amount of power applied to the SSF Trace Heated components

[en] Results of an adiabatic, single bundle test program to determine the subcooled counter-current flow limiting (CCFL) characteristics of the upper region of a BWR fuel bundle are presented. Data are reported for three methods of inlet water injection and three methods of steam injection. The results show that the CCFL characteristics are affected by the methods of both steam and water injection. It is also shown that CCFL with subcooled liquid injection is characterized by the steam condensing capability of the inlet water

[en] An experimental task plan for the separate effects bundle tests of the Single Heated Bundle Task in the BWR Refill-Reflood Test Program is presented. The tests will provide core spray and reflood heat transfer data and will investigate BWR refill-reflood controlling phenomena to support model development tasks in the BWR Refill-Reflood Program. Individual test conditions, the measurement plan and data utilization, are discussed

[en] This document provides the computer technician or software engineer with a method to correlate the PLC ladder logic rung numbers with the device tag in the man machine interface software

[en] Results of an adiabatic, single bundle test program to determine the subcooled counter-current flow limiting (CCFL) characteristics of the upper region of a BWR fuel bundle are presented. Data are reported for three methods of inlet water injection and three methods of steam injection. The results show that the CCFL characteristics are affected by the methods of both steam and water injection. It is also shown that CCFL with subcooled liquid injection is characterized by the steam condensing capability of the inlet water

[en] This document describes the plan for ensuring that the SSF Trace Heat Software will be available for use whenever that facility is opened for the use of draining sodium from FFTF

[en] This document provides the computer technician or software engineer with a way to study the algorithms that are actually used by the SSF PLC

[en] One of the tasks in the EPRI, NRC, and G.E. sponsored boiling water reactor (BWR) Refill-Reflood program is to utilize an atmospheric pressure, single bundle test facility to perform a series of system and separate effects experiments. This document describes the test facility and the various system configurations which will be used, the planned test matrices, and the measurement and data utilization plans. The main purpose of the system effect experiments is to qualify the adiabatic steam injection technique which will be used to simulate heated bundles in the large scale 30⁰ sector test facility. This will be accomplished by performing a set of reference experiments utilizing both the heated and adiabatic bundles, and subsequently comparing some predefined test parameters which characterize the system response

[en] Beta-adrenergic stimulators are known to alter body composition profiles in experimental animals. The most prominent in vivo adaptations to beta-agonists are a decreased adipose tissue and concurrent increased muscle mass. Our lab has previously reported that norepinephrine - a beta₁-agonist - compromised preadipocyte growth in a primary cell culture system. Accordingly, this study continued to examine the effect of norepinephrine (NE) on in vitro preadipocyte proliferation. Stromalvascular cells, obtained from the inguinal pad of 4-5 week old Sprague-Dawley rats, were grown in culture for two weeks. Cells were treated with NE (1 μM) during the proliferative growth phase and labelled with ³H-thymidine on day 2 of culture. Following exponential growth, all cells were placed on a differentiation promoting media. Adipocytes (including differentiated preadipocytes) and stromal cells were separated using a density gradient, and ³H-thymidine was determined for both cell types. NE exposure for 2 or 4 days significantly reduced preadipocyte ³H-thymidine uptake, indicating an inhibition of mitotic growth. Future experiments will examine possible mechanism(s) involved in the catecholamine induced suppression of preadipocyte proliferation

[en] Cachetin has been shown to effect gene product expression in the established adipose cell line 3T3-L1. Expression of messenger RNA for lipoprotein lipase is suppressed in cultured adipocytes. The purpose of this study was to determine the effect of Cachetin on adipose cell differentiation in primary cell culture. Stromalvascular cells obtained from the inguinal fat pad of 4-5 week old Sprague-Dawley rats were grown in culture for two weeks. During the proliferative growth phase all cells were grown on the same medium and labelled with ³H-thymidine. Cachetin treatment (10^-6 to 10^-10 M) was initiated on day 5, the initial phase of preadipocyte differentiation. Adipocytes and stromal cells were separated using density gradient, and ³H-thymidine was determined for both cell types. Thymidine incorporation into adipose cells was decreased maximally (∼ 50%) at 10^-10 M. Stromalvascular cells were not influenced at any of the doses tested. Adipose cell lipid content as indicated by oil red-O staining was decreased by Cachetin. Esterase staining by adipose cells treated with Cachetin was increased indicating an increase in intracellular lipase. These studies show that Cachetin has specific effects on primary adipose cell differentiation