Servo Controlled Variable Pressure Modification to Space Shuttle Hydraulic Pump

Engineering drawings show modifications made to the constant pressure control of the model AP27V-7 hydraulic pump to an electrically controlled variable pressure setting compensator. A hanger position indicator was included for continuously monitoring hanger angle. A simplex servo driver was furnished for controlling the pressure setting servovalve. Calibration of the rotary variable displacement transducer is described as well as pump performance and response characteristics

A dynamic vegetation design in a folk park environment : a design proposal for folk park in Lomma

Folkets hus och parker är en del av svensk parkhistoria. Parkerna var tillägnade arbetarklassen under 1900-talet och de skapade möjligheter för sociala möten, kultur och nöjen. Det här arbetet fokuserar på Lomma Folkets park, som ursprungligen var en levande park med växtlighet och mänsklig aktivitet. Idag saknar parken liv och funktioner som lockar besökare. Lomma Folkets hus-förenings vision är att parken återigen ska bli en lummig oas, men att den samtidigt ska utformas utan de traditionella stildragen av en folkpark. För att nå föreningens visioner skapades en park med fokus på växtlighet samtidigt som parkens kulturhistoriska arv framhävs. I arbetet undersöktes hur Folkets park i Lomma kan gestaltas för att främja föreningslivet, kultur och rekreation. Den teoretiska grunden för arbetet är tvåfalt, dels växtgestaltning, dels historiska parkstrukturer. Växtgestaltningen utgår från dynamisk vegetationsbyggnad som modell för att skapa ett art- och strukturrikt växtsystem. Växtsammansättningen och växtkompositionen syftar till att skapa mervärden i parken, som tidigare varit bristfällig. Historiska strukturer inspirerade av parker som anlades i samma tidsera som Lomma Folkets park utgör grunden för hur parkens kulturhistoriska värde förvaltats. Med beskrivande texter och planer har strukturer valts ut som kan appliceras i Folkets park. Arbetets resultat presenteras som ett gestaltningsförslag för Folkets park i Lomma. I förslaget ingår funktioner som knyter an till föreningens verksamhet och kopplas till dess historiska arv integrerat i ett art- och strukturrikt växtsystem. En dynamisk vegetationsbyggnad bidrar med upplevelsemässiga och ekologiska värden. Diskussionen redogör för möjligheter och problem med en dynamisk växtgestaltning som modell för växtgestaltningen. Därefter reflekterar jag över de överväganden jag gjort i designprocessen. Diskussionen behandlar även hur det historiska arvet har förvaltats i den nya utformningen, följt av en reflektion över svårigheter med bevarande. Diskussionen avslutas med en reflektion av val av metoder och vad de har bidragit till i arbetet.Folkets hus and Folkets park were the product of the Swedish labour movement at the end of the 1800s and beginning of the 1900s. Such facilities and surrounding parks are found in many former industrial towns in Skania. Folkets hus served as a meeting place in the community and was used for social and cultural activities. This thesis focuses on Folkets park in Lomma, which once was a vivid park, frequently used by the locals. After a few decades the park was no longer maintained and it lost its former functions and charm. The purpose of this study is to recreate the Lomma Folkets park as an outdoor setting for social life, recreation and culture. I have proceeded from the park association’s vision to find solutions to manage the cultural history integrated in a rich vegetation system. The design is based on several methods, including different analyses and a theoretical background. The design proceeds from a variety of analyses, including the natural conditions of the park, a Lynch-inspired analysis and a Serial vision-inspired analysis. The theoretical basis for the project is twofold: dynamic vegetation design and structures of historical parks from the 1800s. The design answers the research questions about vegetation design by focusing on composing dynamic plant communities and the use of various elements of the 1800s-parks by including functions such as a stage, an alcove and a terrace. The new structures encourage social encounters with the aim of attracting visitors at all times. Functions connected to culture and leisure activities are integrated in rich plant communities, including richness in species and in tree layers. The multilayered canopy is a diverse system that contributes to experiential and ecological values, which makes it a unique park in Lomma. In the discussion I reflect on what possibilities and problems a dynamic vegetation design offers as a method in this specific location and project. I question my choices connected to the association’s vision, and reflect on the whats and hows of the design process. Furthermore, I discuss whether the design managed to maintain the cultural historical heritage. Then I reflect on the different ways cultural historical conservation could be interpreted

Land use possibilities for recreation in the urban outskirts : a plan for new usage of Sege industrial area in Malmö

Kandidatarbetet behandlar växande städers ökande behov av nya grönytor för att tillgodose invånarna med rekreationsmöjligheter. Den växande urbanisering bidrar till förtätning, vilket vanligen sker på bekostnad av stadens grönytor. Denna uppsats utreder vidare hur stadens utkant skulle kunna användas i stadsplanering för att ge människor i städer tillgång till gröna rekreationsområden i sitt vardagslandskap. I studien analyserades Malmö stads översiktsplan för att besvara frågan hur utkanter skulle kunna tillämpas i en verklig kontext. Analysen visar att målet om en social och ekologisk hållbarhet kan uppnås endast i relation till de grönytor som finns i staden. Studien innefattar en skiss till utökade grönytor i ett utkantsområde, Sege industriområde i Malmö, och diskuterar staden utkant som en outnyttjad resurs för att ge stadens invånare ökad tillgång till rekreationsområden.This bachelor thesis addresses growing cities increasing need for green areas to meet the demand for possibilities for recreation. The growing urbanization means a densification followed by a loss of urban green areas. This paper investigates how urban fringe zones could be used within urban planning to provide city people with green urban areas for recreational purposes. In this study, the city plan for Malmö was analyzed to find out how the concept of fringe zone could be applied in an authentic context. The analysis shows that the goal to obtain social and ecological sustainability depends on the existence of green areas within the city. The paper also includes a sketch of how to increase the amount of greenarea in a urban fringe area, called Sege industry in Malmö, and discusses the fringe zone as an untapped resource for providing a growing city population with increased access to urban recreational areas

Erfarenheter av att leva med emotionell instabil personlighetsstörning

Bakgrund: Emotionell instabil personlighetsstörning beror på genetiska och miljömässiga faktorer. En känslomässig instabilitet och stark emotionell smärta präglar diagnosen, vilket ofta resulterar i självskadebeteende och suicidala handlingar. I tidigare forskning beskrivs patientgruppen som svår att vårda och flertalet patienter beskriver erfarenheter av negativa attityder i mötet med vården. Syfte: Syftet var att beskriva erfarenheter av att leva med emotionell instabil personlighetsstörning. Metod: En litteraturstudie gjordes med integrerad analys av tio artiklar baserade på kvalitativa studier. Resultat: Materialet resulterade i fyra teman: “maktlöshet”, “skam och skuld”, “hopplöshet” samt “ensamhet och känsla av att vara missförstådd”. Slutsats: Personer med diagnosen beskriver stark emotionell smärta samt upplevelser av att vara missförstådda. Det finns ett uttalat behov av förståelse, bekräftelse och trygga relationer. Genom en större förståelse för personernas erfarenheter ges ökad möjlighet att ge en god, personcentrerad vård

A PC based time domain reflectometer for space station cable fault isolation

Significant problems are faced by astronauts on orbit in the Space Station when trying to locate electrical faults in multi-segment avionics and communication cables. These problems necessitate the development of an automated portable device that will detect and locate cable faults using the pulse-echo technique known as Time Domain Reflectometry. A breadboard time domain reflectometer (TDR) circuit board was designed and developed at the NASA-JSC. The TDR board works in conjunction with a GRiD lap-top computer to automate the fault detection and isolation process. A software program was written to automatically display the nature and location of any possible faults. The breadboard system can isolate open circuit and short circuit faults within two feet in a typical space station cable configuration. Follow-on efforts planned for 1994 will produce a compact, portable prototype Space Station TDR capable of automated switching in multi-conductor cables for high fidelity evaluation. This device has many possible commercial applications, including commercial and military aircraft avionics, cable TV, telephone, communication, information and computer network systems. This paper describes the principle of time domain reflectometry and the methodology for on-orbit avionics utility distribution system repair, utilizing the newly developed device called the Space Station Time Domain Reflectometer (SSTDR)

Apollo 14: Some geochemical aspects

Chemical analyses were obtained for five samples of Apollo 14 regolith fines, three 14230 core samples, soil clod 14049, breccias 14305 and 14319, 14310 basalt, and some separated phases. The chemical uniformity of these Apollo 14 samples indicates thorough mixing and/or uniform source rocks. Basalt 14310 can be matched well in composition by a four to one mixture of soil and plagioclase. The Eu(2+)/Eu(3+) ratios calculated for 14310 pigeonite and plagioclase are similar to those for Apollo 12 and 15 mare-type basalt phases; this indicates similar redox conditions. Apollo 14 samples are chemically similar to Apollo 12 and 15 KREEP as distinct from Apollo 11, 12, and 15 and Luna 16 mare-type basalts

Teachers’ use of inquiry and language scaffolding questions when preparing an experiment

This study analyzes data from three national contexts in which teachers worked with the same teaching materials and inquiry classroom activities, investigating teachers’ use of strategies to promote interaction and scaffolding when participating in a professional development program. The data material is collected from three case studies from the Netherlands, Norway, and Sweden, respectively. Each case is from a teaching unit about green plants and seed sprouting. In one lesson in this unit, students were involved in planning an experiment with sprouting seeds, and this (similar) lesson was videotaped in three national settings. The main research question is, as follows: How do primary teachers use questions to scaffold conceptual understanding and language use in inquiry science activities? The data analysis shows that teachers ask different kind of questions such as open, closed, influencing and orienting questions. The open, orienting questions induce students to generate their own ideas, while closed orienting and influencing questions often scaffold language and content-specific meaning-making. However, both open, closed, orienting and influencing questions can scaffold student language and conceptual understanding. Often, teacher questions scaffold both language content-specific meaning-making at the same time. The study shows the subtle mechanisms through which teachers can use questions to scaffold student science literacy and thereby including them in classroom interaction

Stimulation of platelet glycoprotein IIb-IIIa (αIIbβ3-integrin) functional activity by a monoclonal antibody to the N-terminal region of glycoprotein IIIa

AbstractPlatelet glycoprotein (GP) IIb-IIIa complex (αIIbβ3-integrin) changes its conformation upon platelet activation that results in binding of RGD-containing ligands and expression of ligand-induced binding site (LIBS) neoepitopes. Anti-GIIb-IIIa monoclonal antibody (monAB) CRC54 bound to ≤10% of GPIIb-IIIa on resting platelets but binding was enhanced by the occupation of GPIIb-IIIa with RGDS peptide and by platelet activation indicating that CRC54 is directed against LIBS epitope. The epitope was located within the first 100 N-terminal residues of GPIIIa and differed from other LIBS epitopes. CRC54 as well as its Fab fragments were able to induce platelet aggregation. CRC54 also stimulated interaction of GPIIb-IIIa with its ligands (fibrinogen and fibronectin) and conformation-dependent antibodies. The results indicated that changes of GPIIb-IIIa conformation, binding of ligands and platelet aggregation could be stimulated via interaction of anti-LIBS antibody with the N-terminal part of GPIIIa

Procedural theory - mental activity progressions, sketching and drawing procedure during the design process

Landscaping is the act of taking a piece of land and analysing, evaluating, and beautifying it, while focusing on maintaining and increasing sustainability, functionality, and usability for people in a cost-effective way. The course Urban Landscape Design (LK0400) is a bachelor’s level course focusing on design of urban green spaces, offered at the Swedish University of Agricultural Sciences, and run by the Department of Landscape Architecture, Planning and Management (LTV faculty). The course is run as a stand-alone course for national and international students and as a programme course in the Landscape Engineer Programme at Uppsala and Alnarp, and in the Garden Design, Landscape Engineer Programme at Alnarp