Thermal protection system and related methods

A thermal protection system and a method of manufacturing are disclosed. The thermal protection system may be configured to protect a movable joint, for example, a flexible bearing of a rocket motor nozzle. The thermal protection system includes a series of annular shims separated by a plurality of discrete spacers. Each shim of the series of annular shims may have a larger diameter than the previous shim, and the shims may nest. The shims may comprise a thermally stable material, and the discrete spacers may comprise an elastomer. Optionally, an annular bearing protector may separate the annular shims from the flexible bearing

Method of fabricating an object with a thin wall having a precisely shaped slit

A method is described for making a structure with a cavity and a thin wall with a precisely shaped slit. An object with a cavity having two openings, one of which is to be closed by a thin wall with a slit, is placed on the surface of a fixture. The fixture surface has a slot conforming to the size and shape of the slit to be formed in the thin wall

Optical shutter for use in shock tubes

Thin metal shutter that is forced into angled optical slit isolates spectrograph from high speed shock tube both optically and mechanically so neither radiation nor particulate material enters spectrograph

The Student Movement Volume 107 Issue 22: Fulfilled: AU Presents a Story of Redemption

HUMANS Speaking Up With Women, Interviewed by: Grace No What is it Like to Work at the Athletics Department?, Interviewed by: Grace No What is Title IX?. Interviewed by: Caryn Cruz ARTS & ENTERTAINMENT Currently: Foreign Film, Solana Campbell Fulfilled: A Musical of Redemption, Aiko J. Ayala Rios NEWS KASA Banquet, Interviewed by: Anna Pak Watchmen A Capella Concert: Unstoppable: A Journey Through Self-Discovery , Gloria Oh IDEAS Charge It!, Alexander Navarro Feminism is for Everybody. Yes-Even You, Dude!, Reagan McCain Tick Tock... for TikTok?, Abby Shim PULSE Dorm Delicacies, Melissa Moore How Have We Grown?, Abraham Bravo What Do We Wish We Did?, Abraham Bravo LAST WORD Take It From Me , SM Section Editorshttps://digitalcommons.andrews.edu/sm-107/1021/thumbnail.jp

Analytic study of the three-urn model for separation of sand

We present an analytic study of the three-urn model for separation of sand. We solve analytically the master equation and the first-passage problem. We find that the stationary probability distribution obeys the detailed balance and is governed by the {\it free energy}. We find that the characteristic lifetime of a cluster diverges algebraically with exponent 1/3 at the limit of stability.Comment: 5pages, 4 figures include

Thermistor holder for skin-temperature measurements

Sensing head of thermistor probe is supported in center area of plastic ring which has tabs so that it can be anchored in place by rubber bands or adhesive tapes. Device attaches probes to human subjects practically, reliably, and without affecting characteristics of skin segment being measured