Table Of Content

tion with matter and solution of the Boltz- ergy, and Markov-based probabilistic mod- Lvovich Ponomarev of Universities Space Re- mann transport equation by use of both els of placement of double-strand breaks in search Association. Further information is theoretical and numerical models. The DNA. The program is designed for use in contained in a TSP (see page 1). biophysical models of breakage of DNA by the NT, 95, 98, 2000, ME, and XP variants Universities Space Research Association radiation include biopolymer coarse- of the Windows operating system. has requested permission to assert copyright grained and atomistic models of DNA, sto- This program was written by Frances A. Cu- for the software code. MSC-23853-1 chastic-process models of deposition of en- cinotta of Johnson Space Center and Artem On-Demand Urine Analyzer John H. Glenn Research Center, Cleveland, Ohio A lab-on-a-chip was developed that is programs and drug regimes that would onset of diseases, such as osteoporosis. capable of extracting biochemical indi- maintain astronaut health. This work was done by Stuart Farquharson, cators from urine samples and generat- The analyzer containing the lab-on- Frank Inscore, and Chetan Shende of Real- ing their surface-enhanced Raman a-chip includes materials to extract 3- Time Analyzers, Inc. for Glenn Research Cen- spectra (SERS) so that the indicators methylhistidine (a muscle-loss indica- ter. Further information is contained in a can be quantified and identified. The tor) and Risedronate (a bone-loss TSP (see page 1). development was motivated by the need indicator) from the urine sample and Inquiries concerning rights for the commer- to monitor and assess the effects of ex- detect them at the required concentra- cial use of this invention should be addressed tended weightlessness, which include tions using a Raman analyzer. The lab- to NASA Glenn Research Center, Innovative space motion sickness and loss of bone on-a-chip has both an extractive mate- Partnerships Office, Attn: Steve Fedor, Mail and muscle mass. The results may lead rial and a SERS-active material. The Stop 4–8, 21000 Brookpark Road, Cleve- to developments of effective exercise analyzer could be used to monitor the land, Ohio 44135. Refer to LEW-18258-1. More-Realistic Digital Modeling of a Human Body Lyndon B. Johnson Space Center, Houston, Texas A MATLAB computer program has model based on traditional anthropo- reposition the model without need for been written to enable improved (rela- metric measurements that do provide additional scans. tive to an older program) modeling of a important volume and surface informa- This program was written by Renee Rogge human body for purposes of designing tion. The present program generates a of Mercer University for Johnson Space Center. space suits and other hardware with three-dimensional (3D) whole-body For further information, contact the Johnson which an astronaut must interact. The model from 3D body-scan data. The pro- Commercial Technology Office at (281) 483- older program implements a kinematic gram utilizes thin-plate spline theory to 3809. MSC-24040-1 Advanced Liquid-Cooling Garment Using Highly Thermally Conductive Sheets This garment provides metabolic heat rejection applicable to surgical cooling vests, combat fatigues, and firefighter and hazmat suits. Lyndon B. Johnson Space Center, Houston, Texas This design of the liquid-cooling gar- ing unit. This improves the garment’s more effectively. The conductive sheets ment for NASA spacesuits allows the suit performance in terms of the maximum can be layered differently, depending to remove metabolic heat from the environment temperature in which it upon the heat loads, in order to provide human body more effectively, thereby in- can keep a crewmember comfortable. flexibility, exceptional in-plane heat creasing comfort and performance while The garment uses flexible, highly transfer, and good through-plane heat reducing system mass. The garment is thermally conductive sheet material transfer. A metal foil, most likely alu- also more flexible, with fewer restrictions (such as graphite), coupled with cooling minum, can be put between the on body motion, and more effectively water lines of improved thermal conduc- graphite sheets and the external heat transfers thermal energy from the tivity to transfer the thermal energy source/sink in order to both maximize crewmember’s body to the external cool- from the body to the liquid cooling lines through-plane heat transfer at the con- 38 NASA Tech Briefs, January 2010