Progress toward Hydrogen Peroxide Micropropulsion

A new self-pressurizing propulsion system has liquid thrusters and gas jet attitude control without heavy gas storage vessels. A pump boosts the pressure of a small fraction of the hydrogen peroxide, so that reacted propellant can controllably pressurize its own source tank. The warm decomposition gas also powers the pump and is supplied to the attitude control jets. The system has been incorporated into a prototype microsatellite for terrestrial maneuvering tests. Additional progress includes preliminary testing of a bipropellant thruster, and storage of unstabilized hydrogen peroxide in small sealed tanks

Prospectus, December 6, 1978

WHICH IS BETTER-- TICCIT OR PLATO?; Internship applications accepted; PC business instructor receives service award; Education in the 80\u27s to be topic of talk; Brown resigns as Day Senator; Faculty invited to student forum; Canteen requests to raise food prices at Parkland; PC band to perform at Market Place; PC singers to give concerts this Sunday; Teachers essential for PLATO; PC students--on PLATO; Parkland to offer class; PC Women\u27s Program to host workshop; PC club to show attire; Heart\u27s melody rocks fans; Springsteen and the E Street Band electrify audience; Patton Woods gets clean-up; LRC detection system saves PC library $16,000 a year; Basketball season opens; WPCD\u27s Top 10 for the week of Dec. 4; Classifieds; Women win opener; New league ready to start; Women\u27s Box Score; Cobras start great; Dubinski and Goodwin finish with 1-1 records; Bouncing Bob; Reed wins Bouncing Bob; Fast Freddy contestants have hard time picking this week\u27s winnershttps://spark.parkland.edu/prospectus_1978/1001/thumbnail.jp

Prospectus, April 26, 1978

WINNING COACH JOINS COBRAS: PARKLAND PICKS COACH COOPER; B, B and H week to begin; No C-U jobs; \u27Fear and Loathing\u27 at U. of I.; Letters to the editor: Write to protect wild; Parkland College News in brief: \u27The Living History of Homer\u27, Household emergencies discussed, Parkland students to be capped Sunday, Parkland joins March of Dimes Walkathon; Feminist, Kay Murphy, tells of emergence into poetry; Re-entry workshop to begin; Art students show original site designs; Minstrel\u27s life is unique; Classifieds; Hundreds turn out at Parkland last Saturday: Long-lifers art show; Cobras play 2 of 10, split with Loggers; Cobras win nitecap 14-7, lose opener; Trackmen set bests\u27; Basketball camps at PC in June; Parkland Vet. Techs take on University Vets May 11https://spark.parkland.edu/prospectus_1978/1016/thumbnail.jp

Prospectus, September 21, 1977

ONLY 830.1 NIGHT STUDENTS? PARKLAND NIGHT CLASSES: GOING, GOING, GOING…; Activity Day today: music, food, games; Insurance for Parkland students now available; Parkland Events; Stoeber tops Jones for Stu-Go Vice-Prexy slot; Blue Angels at Willard Airport; Editorial: Who cares for people?; Scholarships are given to area persons; Counseling Service provided: each college division; Parkland news in brief; What to do with a bad case of ivy? Maybe Jack Frost can help; Holograms: three-D images or \u27miracles\u27; 100,000 children hurt each year; SSU invites students to Career Day; U. of I. to burn liquid radioactive wastes; Early books, manuscripts on display in U. of I. Library Rare Book Room; Home health care to be topic at CHI program; Animation Festival at T-Bird will end today; \u27Jazz, Blues and Langston Hughes\u27 to be topic of talk; Young are growing older, old are living longer; Classifieds; Women spikers trample Kankakee; Saskatoon Buzzsaws cut Al \u27Albino\u27 Catfish; Gymnasium: Tennis courts installed; LaBadie pleased with Cross Country team\u27s performance; Sigma Omega participate in walk; New rules this week: Mike O\u27Neill 12 for 12, wins Fast Freddy No. 2; Parkland golfers gracious hosts, finish at bottom in own tournament; Tennis anyone?; Maupin refractures ankle bone, sophomore\u27s status uncertain; Fishbein frys Cobras, first defeat of year; Fast Freddy Football Forecasthttps://spark.parkland.edu/prospectus_1977/1012/thumbnail.jp

Prospectus, January 25, 1977

REFERENDUM FEB. 15; Voting hours extended, 7-7: Board plans tax vote; Vocational-Technical Programs Topic Of Report; Student Representative Sworn In; Special Election Resolution Amended; President\u27s Report; Three Career Programs Added; Personnel Report Adopted; PC mews in brief: Calendar errs, Voter registration info given, Cancelling Classes Due to Snow; Letters to the editor: \u27Handicapped\u27 guidelines set, Talk to us..., Parent Power!; Editorial: Bookstore must change; Stu-Go begins year with resginations; Ice Capades tickets; Three fires strike Champaign; fifth column: No wonder no one goes to movies; Remember?: Fall sem. review; Diane Alexander no newcomer to student politics; Students critical of TV coverage; Break at Parkland; Sociological Association meets; Campustown may get a 2nd Chance after fire; Media Sceen: Fifth network should start in Fall; Rantoul\u27s Breezy 26 year tattooer: \u27Roses, butterflies\u27 most popular; Classifieds; Women Cagers meet Danville tonight; Intramurals start Jan. 26; Madlock signs at Gery and Al\u27s; Track starts Thursday; Olney beats Cobras in \u27thriller\u27; Cobras solidly defeat Lincoln Land last Tuesday; Baseball your game?https://spark.parkland.edu/prospectus_1977/1030/thumbnail.jp

Prospectus, September 21, 1976

PC BOARD OF TRUSTEES OKS DEFICIT BUDGET; Anna Dearing of the LS testing lab: I enjoy it ; Write-ins dominate election, 1st Stu-Go meeting tommorow; PC news in brief: Sociological Association, First Meeting, Yea team!!!, Need some help?, Basketball tryouts; Women\u27s program sponsors : Antonia ; Improve reading at PC; Letters to the editor: The pins, Again..., And again?..., Oh no! not again?..., Give a Schmidt!!!, Where are the sports?; Editorial: Students are consumers; Quad fest featured music, magic; Counselors comply with Title IX; Prairie Festival set for Sunday; Louise Parker: \u27People are fun to watch\u27; Auditions today, tomorrow; Summer school in the Rockies; Drag races teach needed skills; 45 students attend: Marriott\u27s Great America attracts Parkland field trip; Ike\u27s opinion: Controversy continues: feedback on Dr. Richards; Uncle Bob: Slinging vegies is old tradition; Country crowd: Charlie and his fans; Mark Twain; Mediaseen: Carter and the media; Classifieds; Hoofers do \u27extremely well\u27 at UI; Women\u27s volleyball schedule; Locks and Dam 26 is subject of Oct. 12 debate; Know your athletes: \u27T\u27 Square keeps on running to own beat; Ten men: C-C members listed; Cobra\u27s Corner: Women\u27s volleyball improves; Cross Country Schedule 1976; Golfers fourth in tourney; Lose your nose?; Know your athletes: Kathy Kaler prepares for teaching; Linton wins Fast Fred; Fast Freddy\u27s Football Forecast; Games of September 25https://spark.parkland.edu/prospectus_1976/1011/thumbnail.jp

Prospectus, September 14, 1977

TWO VIE FOR VEEP POST: STUDENT GOVERNMENT ELECTIONS TODAY; Elections scheduled today and tomorrow; District 505 entitled to minimum credit grants; Activities postponed; Unopposed; Shiloh\u27s and Sonshine Circle to perform; Survival of democratic society topic at forum; Vets must go by book; \u27Self Defense\u27 is under attack; Youngest brew master is nun; Warners, women battle over \u27Jump On It\u27; Male prostitute makes history; News From \u27Her Say\u27: Ten women earn wings; UAW asks Congress for maternity benefits \u27as soon as possible\u27; Career Awareness Course for women Wednesday eve.; Instructors earn high grades from PC students; Back orders on home insulation cause woes; Blowing of the shofar means Rosh Hashanah, start of 5,738 New Year; Springfield news: senior citizens, equal language; The gas man cometh...; Holograph exhibit at PC tomorrow; Letting out some Slack...: Answers for queries on PC; Chicago painter displays at KCPA; Prospectus Pigskin Preview: Cobra Grid Schedule, Parkland Roster, Fight on Cobras; Alaskan wilderness is summer home to Basler; Parkland Learning Laboratory: Early help available to students; Stu-Go explores check cashing for PC people; PC music groups have many openings; Jumers: German touch; \u27Elite\u27 women to get public house; Home care topic to be presented; Classifieds; X-country opens Saturday; Spikettes look good; Sports shorts; Bio instructor Cox wins Fast Freddy; Intramural sign up closing; The continuing battle for Number 1; Parkland to host nationalshttps://spark.parkland.edu/prospectus_1977/1013/thumbnail.jp

Models of Neptune-Mass Exoplanets: Emergent Fluxes and Albedos

There are now many known exoplanets with Msin(i) within a factor of two of Neptune's, including the transiting planets GJ436b and HAT-P-11b. Planets in this mass-range are different from their more massive cousins in several ways that are relevant to their radiative properties and thermal structures. By analogy with Neptune and Uranus, they are likely to have metal abundances that are an order of magnitude or more greater than those of larger, more massive planets. This increases their opacity, decreases Rayleigh scattering, and changes their equation of state. Furthermore, their smaller radii mean that fluxes from these planets are roughly an order of magnitude lower than those of otherwise identical gas giant planets. Here, we compute a range of plausible radiative equilibrium models of GJ436b and HAT-P-11b. In addition, we explore the dependence of generic Neptune-mass planets on a range of physical properties, including their distance from their host stars, their metallicity, the spectral type of their stars, the redistribution of heat in their atmospheres, and the possible presence of additional optical opacity in their upper atmospheres.Comment: Accepted and Published in ApJ (2010 ApJ,709,149