Expectations from EMET and OESEE ground listening of possible EM events generated by the TSS 1R

On 22nd February '96, the space mission STS 75 started ,from the NASA facilities at Cape Canaveral. Such a mission consists in the launch of the shuttle Columbia in order to carry out two experiments in the space: the TSS 1R (Tethered Satellite Sistem 1 Refliight) and the USMP (United States Microgravity Payload). The TSS 1R is a replica of a similar mission TSS 1 '92. The TSS space programme is a bilateral scientific cooperation between the USA space agency NASA (National Aeronautics and Space Agency) and the ASI (Italian Space Agency. The TSS 1R system consists on the shuttle Columbia which deploys, up-ward, by means a conducting tether 20 km long, a spherical satellite (1.5 mt diameter) containing scientific instrumentation. This system, orbiting at about 300 km from the Earth's surface, represents, presently, the largest experimental space structure, Due to its dimensions, flexibility and conducting properties of the tether, the system interacts, in a quite complex manner, wih the earth magnetic field and the ionospheric plasma, in a way that the total system behaves as an electromagnetic radiating antenna as well as an electric power generator. Twelve scientific experiments have been assessed by US and Italian scientists in order to study the electro dynamic behaviour of the structure orbiting in the ionos phere. Two experiments have been prepared in the attempt to receive on the Earth's surface possible electromagnetic events radiated by the TSS 1R. The project EMET (Electro Magnetic Emissions from Tether),USA and the project OESEE (Observations on the Earth Surface of Electromagnetic Emissions) Italy, consist in a coordinated programme of passive detection of such possible EM emissions. This detection will supply the verification of some thoretical hypotheses on the electrodynamic interactions between the orbiting system, the Earth's magnetic field and the ionospheric plasma with two principal aims as the technological assesment of the system concept as well as a deeper knowledge of the ionosphere properties for future space applications. A theoretical model that keeps the peculiarities of tether emissionsis being developed for signal prediction at constant tether current. As a step previous to the calculation of the expected ground signal , the Alfven-wave signature left by the tether far back in the ionosphere has been determined. The scientific expectations from the combined effort to measure the entity of those perturbations will be outlined taking in to account the used ground track sensor systems.

Das leben der schwestern zu Töss,

Mode of access: Internet.

Organizational maintenance manual for truck chassis, for direct support section, topographic support system (TSS), NSN 2320-01-113-3616.

Includes index.

Organizational maintenance manual for truck chassis for direct support section topographic support system (TSS), NSN 2320-01-113-3616.

Includes index.

Direct support and general support maintenance manual for truck chassis, for direct support section, topographic support system (TSS), NSN: 2320-01-113-3616.

"September 1985"--Vol. 2

Operator's manual : truck chassis for direct support section, topographic support system (TSS), NSN:2320-01-113-3616.

Includes index.

Organizational maintenance manual for truck chassis, for direct support section, topographic support system (TSS), NSN 2320-01-113-3616.

"September 1985"--Vol. 2.

Deutsches Nonnenleben : Das Leben der Schwestern zu Töss und der Nonne von Engeltal Büchlein von der Gnaden überlast /

Bibliography: p. 326-328.

Sähköiset koejärjestelmät

Sähköiset koejärjestelmät ovat käytössä lähes kaikissa suomalaisissa korkeakouluissa ja erilaisten sähköiseen oppimiseen liittyvien järjestelmien käyttö on lisääntynyt huomattavasti viime vuosien aikana. Kuitenkin uuden tietotekniikan ja uusien pedagogisten käytäntöjen käyttöönotto on ollut välillä haastavaa oppilaitoksille. Ja uudistuksista on toisinaan syntynyt myös muutosvastarintaa, joka on voinut muodostua pitkäkestoiseksi. Suomalaiset korkeakoulut ovat hyvin erilaisissa vaiheissa sähköisten järjestelmien käyttöönotoissa, ja joissain korkeakouluissa ei sähköistä koejärjestelmää ole otettu vieläkään käyttöön, vaikka toisissa se on ollut käytössä jo vuosikymmenen ajan. Tässä työssä perehdyttiin sähköisiin koejärjestelmiin eri näkökulmista ja käsiteltiin sähköisten koejärjestelmien etuja, haittoja sekä niiden käyttöönottoa. Työssä myös esiteltiin yleisimpiä erityisesti Suomessa käytössä olevia järjestelmiä. Lisäksi toteutettiin kysely, joka lähetettiin kahteentoista suomalaiseen korkeakouluun. Korkeakouluista yhdeksän vastasi kyselyyn. Kyselyn perusteella muodostettiin vertailutaulukko, jotta korkeakoulujen järjestelmien erojen huomioiminen olisi mahdollisimman helppoa. Vaikka opiskelijat ovat valmiita sähköisille kokeille, on opettajilla ja instituutioilla ongelmia niiden käyttöönotossa sekä täysimittaisessa hyödyntämisessä. Erityisesti automaattisen arvioinnin, opetuksen tilastoinnin ja kehityksen sekä jatkuvan oppimisen mahdollistavia menetelmiä näytetään käyttävän huonosti hyödyksi korkeakoulujen pääasiallisissa sähköisissä koejärjestelmissä.

OPTIMIZATION OF THE TREATMENT PROCESS FOR RESIDUAL WATER FROM A BEER INDUSTRY

The optimization of the treatment process for residual waters from a brewery operating under the modality of an anaerobic reactor and activated sludge combination was studied in two phases. In the first stage, lasting for six months, the characteristics and parameters of the plant operation were analyzed, wherein a diversion rate of more than 50% to aerobic treatment, the use of two aeration tanks and a high sludge production prevailed. The second stage comprised four months during which the system worked under the proposed operational model, with the aim of improving the treatment: reduction of the diversion rate to 30% and use of only one aeration tank At each stage, TSS, VSS and COD were measured at the entrance and exit of the anaerobic reactor mid the aeration tanks. The results were compared with the corresponding design specifications and the needed conditions were applied to reduce the diversion rate towards the aerobic process through monitoring the volume and concentration of the affluent, while applying the strategic changes in reactor parameters needed to increase its efficiency. A diversion reduction from 53 to 34% was achieved, reducing the sludge discharge generated in the aerobic system from 3670mg TSS/l. with two aeration tanks down to 2947mf TSS/l using one tank keeping the same relation VSS:TSS (0.55) and an efficiency of total removal of 98% in terms of COD.

Nitrogen and potassium fertilization affect apple fruit quality in southern Brazil

Nitrogen (N) and potassium (K) are usually found in higher concentrations than other macronutrients in apple (Malus x domestica Borkh) fruits and are most frequently associated with changes in fruit quality. The aim of this article was to evaluate the effects of N and K fertilization on some fruit quality attributes of Fuji apple. The experiment was conducted at Sao Joaquim, State of Santa Catarina, Brazil, during 2004 and 2005. A factorial design was used with N and K annual fertilizer rates (0, 50, 100, and 200 kg ha(-1) of N and K2O) replicated in three orchards. Fifteen days prior to harvest, three fruit samples were collected from each treatment and site. One sample was used for total soluble solid content (TSS), titratable acidity, pulp firmness, and fruit color parameter analyses, and the other samples were refrigerated in a conventional atmosphere for 3 and 6 months for subsequent determination of fruit quality. Nitrogen fertilization negatively affected fruit color, flesh firmness, and TSS content. These same variables were positively affected by K fertilization, except for flesh firmness.