Academic literature on the topic 'Jan Gehl'
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Journal articles on the topic "Jan Gehl"
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Mansur Garda, Juan Carlos. "Jan Gehl, Ciudades para la gente: [reseña]." Estudios: filosofía, historia, letras 16, no. 126 (2018): 159. http://dx.doi.org/10.5347/01856383.0126.000289544.
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Vershinina, I. A. "Jan Gehl’s concept of human planning." Moscow State University Bulletin. Series 18. Sociology and Political Science 26, no. 1 (2020): 29–45. http://dx.doi.org/10.24290/1029-3736-2020-26-1-29-45.
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The article discusses the concept of human planning proposed by Danish architect Jan Gehl. He criticizes the main trajectory of urban development in the twentieth century and points out that for several decades architects were more concerned about creating space for the free movement of cars. With this approach, the interests of pedestrians are ignored; as a result people are gradually squeezed out of the streets by cars because of streets’ low comfort for them. Gehl suggests revising the priorities of urban planning and creating urban space for pedestrians to intensify social interactions. He believes that creating conditions for walking and increasing the number of public spaces can help to improve citizens’ quality of life. Gehl‘s proposals today become the basis for the reorganization of some cities in the world, including Moscow.
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Torbaty, Khatereh, and Atefeh Hashemian. "Identifying Effective Factors in Transformation of Khajoo Bridge Into A Successful Linear Public Space Based on Jan Gehl’s Criteria." Current World Environment 10, Special-Issue1 (2015): 157–67. http://dx.doi.org/10.12944/cwe.10.special-issue1.21.
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Khajoo Bridge in Isfahan is one of these successful historical examples. Taking it as a sample, we have tried to identify reasons _ with an aim to find proper applicable approach_ behind the preservation of liveliness in this bridge in past and present .To begin we first explained the meaning of city design and criteria of desirable city space according to Jan Gehl ( a famous Danish architect, sociologist, and urban design consultant). Then we searched, studied and analyzed related documents and observations for better understanding of functions and liveliness of Khajoo Bridge. our comprehensive researches showed that elements used in designing and building of the khajoo bridge have been in agreement with Jan Gehl’s criteria of desirable place (protection, comfort, joy). Evaluation of functions and personality of Khajoo Bridge during different eras also revealed that, by employing humanity, culture and architecture, design of the Khajoo Bridge is most harmonious with the third criteria of Jan Gehl for a desirable place (joy). Taking this approach (joyous-entertaining-life giving) has contributed to the sustention of the Khajoo Bridge in many years.
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Garfinkel-Castro, Andrea, and Matthew Wheelwright. "Review: People Cities: The Life and Legacy of Jan Gehl." Journal of Planning Education and Research 38, no. 3 (2017): 386–87. http://dx.doi.org/10.1177/0739456x17724873.
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Karapuda, Michał. "Cities for people – introduction to the concept of the city by Jan Gehl." Kultura i Wartości 26 (January 22, 2019): 287–303. http://dx.doi.org/10.17951/kw.2018.26.287-303.
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Capelli, Charles, and Damien Chardonnet-Darmaillacq. "Entretien avec Jan Gehl?: «?There is much more to walking than walking?»." Espaces et sociétés 179, no. 4 (2019): 17. http://dx.doi.org/10.3917/esp.179.0017.
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Erten, Erdem. ""Önce Yaşam, Sonra Kent Mekânı, Sonra Yapılar!": Jan Gehl ve "İnsan İçin Kentler"." Meltem �zmir akdeniz akademisi dergisi, no. 9 (October 1, 2021): 1–6. http://dx.doi.org/10.32325/iaad.2021.8.
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McNeill, Donald. "Fine Grain, Global City: Jan Gehl, Public Space and Commercial Culture in Central Sydney." Journal of Urban Design 16, no. 2 (2011): 161–78. http://dx.doi.org/10.1080/13574809.2011.548977.
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Lutt, Frederick. "People cities: The life and legacy of Jan Gehl, by Annie Matan and Peter Newman." Journal of Urban Affairs 41, no. 4 (2018): 570–71. http://dx.doi.org/10.1080/07352166.2018.1507215.
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Cárdenas Merino, Diego Pablo, and Jessica Solange Fuentealba Quilodrán. "Mapeos de Gehl aplicados en las escaleras de Melipulli – Puerto Montt." Revista de Arquitectura 27, no. 42 (2022): 90–109. http://dx.doi.org/10.5354/0719-5427.2022.66692.
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Las escaleras de Puerto Montt constituyen en su conjunto, un elemento arquitectónico que articula a la ciudad, respondiendo a la condición topográfica de ella, y que permite otros usos más allá del tránsito peatonal. En ellas se dan instancias de recreación, de sociabilización y de apreciación del paisaje. A pesar del valor que poseen, la percepción ciudadana sobre estos elementos es de inseguridad o peligro, lo que se puede deber a la falta de atención desde la institucionalidad y por las malas prácticas que algunos peatones desarrollan en ellas. Ante la actual falta de espacios públicos habilitados en el centro histórico de Puerto Montt, las escaleras y su diversidad de usos cobran aún más sentido. Esta investigación indagó sobre 3 escaleras en particular como un ensayo metodológico que otorga datos concretos para estudios diversos. La metodología aplicada fue mixta, combinando datos cuantitativos y cualitativos, con un enfoque etnográfico, cuya base considera las herramientas brindadas por Jan Gehl para estudiar la ciudad y sus espacios públicos, y el croquis como instrumento de observación. De esta forma, se identificaron patrones de uso del peatón.
Dissertations / Theses on the topic "Jan Gehl"
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Matan, Anne. "Rediscovering urban design through walkability : an assessment of the contribution of Jan Gehl." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/664.
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Urban design is being rediscovered. For most of the past 50 years it has lacked the concrete theory necessary to guide praxis. As a field it has related only sporadically and selectively to experiential knowledge and was essentially still entrenched within formulistic Modernist approaches. This has limited urban design as practiced to a design profession focused on aesthetics and individual projects without being part of the mainstream city-shaping process. The vacuum in city politics has been filled by modernist traffic engineering and car-based planning. This has limited urban design’s ability as a field to respond to the need for sustainable, vibrant and inclusive urban environments. In particular, it has failed to address the force and power of car-based planning. However, there is scope for a profession of urban design that considers a city holistically and is an advocate for the needs of pedestrians. In particular, there is scope for an urban design practice that is able to challenge the pre-eminence of the auto-focused shaping of cities. These determinations necessitate a different approach to designing our cities. Through work in over 40 cities, Danish urban designer Jan Gehl has begun to demonstrate a new theory and practice of urban design that rediscovers it potency through an emphasis on walkability.This study considers the theory and practice of urban design from a walkability perspective in order to facilitate a more effective, sustainable, humanistic and responsive approach, developing an evaluation framework based on Jon Lang’s (1994) call for a more encompassing urban design approach. This framework is then applied to the work of Gehl, as a case study of an urban designer who has constantly focused on the needs of people within city design, asking what is the significance of Gehl’s work and theory to urban design?Fundamentally urban design is concluded to be about creating cities, or improving existing ones, to be vibrant and sustainable places that relate to people’s use and needs—especially pedestrians—using the skills and theories of various disciplines and depending to a large degree on the public and political process to define the values and priorities. It is about creating hopeful resilient places that are able to adapt and respond to varying social, environmental and economic needs and about creating positive changes in urban environments. The study concludes that there is scope for urban design to move beyond its current limitations to work from a base of experiential knowledge about the city and its use that is focused on a reflective and experiential approach, building on solid practice based theory and on planning for pedestrians.Gehl’s work, both in theory and practice, is explicitly humanist, offering normative urban design theories based on substantive research, is part of organic urban theory and is embedded in ideas of pedestrian based transport planning. As a practitioner, Gehl’s methods enable experiential knowledge to come to the forefront of urban design concerns. Building from Gehl’s focus on the need to overcome formulistic and automobile-dominated urban planning would enable urban design’s aesthetic and prescriptive based theories to have a new and deeper meaning: sustainable urban design is at its heart planning and designing for walkability. This thesis determines that a core component of urban design theory and practice is advocating for the needs of pedestrians.
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Meurman, Fredrik. "Gångtrafik i citymiljöer : En studie via två angreppssätt." Thesis, KTH, Urbana och regionala studier, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-131932.
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Blomkvist, Jacob. "Centrumutveckling i en småstad : Förbättrad social hållbarhet i Smedjebacken." Thesis, Högskolan i Gävle, Samhällsbyggnad, GIS, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26557.
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Many small municipalities, in contrast to larger centers, struggle to offer natural social venues in their neighborhoods. As people choose larger cities for social gatherings, smaller city centers becoming depopulated and in turn they lose their necessary demand to sustain social meeting places. The purpose of this work is to see what small towns can do to make social spaces more attractive and vibrant and thereby encourage people to participated more in the public realm. This study will focus on Smedjebacken (Sweden) municipality's urban development and present proposals for measures that the municipality can take to become more socially sustainable from a planning perspective. The work is much based on Kevin Lynch and Jan Gehl's theories. Where Lynch's scientific strategies see the great perspective of how the city is built and Gehl's ideologies are at a more detailed level where the residents meetings in the city are the primary. A case study has been conducted to gather information about past and future strategies concerning Smedjebacken's city center, as well as documents, ideas and views of municipal official and knowledgeable persons through interviews. A Lynch-based observation analysis of central parts of the city was also used. The method is based on theories in Lynch’s The image of the city, Lynch argues that people see five critical elements in cities: paths, edges, districts, nodes and landmarks. This analysis was conducted during two days in Smedjebacken’s city center. The results show that Smedjebacken has several improvement points in order to increase the social sustainability in the city center. The city is divided into three major districts and has an incoherent character, which means that the few shops and social venues in the city are dispersed and do not benefit from one another as a result. In order to fuse the core of the city, recommendations based on Jan Gehl's theories are advanced. The key strategy recommended is to create social meetings that encourage residents to visit and participate in their community center.<br>Många mindre kommuner har idag svårt att bibehålla de naturliga sociala mötesplatserna i sina tätorter till följd av att större städer har mer att erbjuda. Att allt fler människor väljer större städer för olika sociala sammankomster leder ofta till att de mindre stadskärnorna blir folktomma och i sin tur försvinner den efterfrågan som behövs för att upprätthålla sociala mötesplatser. Syftet med det här arbetet är att se vad småkommuner kan göra för att uppmuntra sin befolkning att lämna hemmen och göra de sociala rummen mer attraktiva och levande. Arbetet kommer att ha fokus på Smedjebacken kommuns stadsutveckling och presentera förslag på åtgärder som kommunen kan vidta för att bli mer socialt hållbara ur ett planeringsperspektiv. Arbetet grundar sig mycket i Kevin Lynch och Jan Gehls teorier. Där Lynch vetenskapliga strategier ser det stora perspektivet av hur staden är uppbyggd och Gehls ideologier är på en mer detaljerad nivår där invånarnas möten inom staden är det primära. En fallstudie har genomförts för att samla in information om tidigare och framtida strategier för Smedjebackens stadskärna, även olika dokumentationer från kommunen har använts och insatta personer har intervjuats. En Lynchbaserad observationsmetod över de centrala områdena inom staden har tillämpats. Metoden grundar sig i Lynch teorier från boken The image of the city där Lynch hävdar att människor ser och upplever staden utifrån de fem kritiska elementen: stråk, gränser, distrikt, noder och landmärken. Analysen genomfördes under två dagar i centrala Smedjebacken. Resultatet visar att Smedjebacken har ett flertalet olika punkter som skulle kunna förbättras för att främja den sociala hållbarheten inom centrum. Staden är uppdelad i tre större distrikt och har en osammanhängande karaktär vilket leder till att de få affärerna och sociala mötesplatserna i staden är utspridda och inte gynnas av varandra till följd av det. För att knyta samman stadskärnan har stadsplaneraren Jan Gehls teorier applicerats där han menar att människor måste uppmuntras till sociala möten i staden för att vilja vistas där.
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Karlborg, Johnny, and Simon Larsson. "Att skapa en attraktiv, tillgänglig och välkomnande mötesplats i ett småstadscentrum : En fallstudie av Centralplan i Tierp." Thesis, Högskolan i Gävle, Samhällsbyggnad, GIS, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-24022.
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Tierps kommun upplever demografisk och ekonomisk tillväxt, och Tierps tätort är i behov av förnyelse och upprustning. Människor som lever i en stad som upplever tillväxt har högre förväntningar och ställer högre krav på offentliga miljöers hållbarhet, utformning och design. En centrummiljö som är tryggare, mer attraktivt och tillgängligt eftersträvas av Tierps kommun. Denna fallstudie är avgränsad till Centralplan i Tierps centrum och på platsen finns Tierps resecentrum, butiker och andra verksamheter. Syftet med denna studie är att uppfylla Tierps kommuns mål genom att skapa en social och välkomnande mötesplats för alla människor. Centralplan i Tierp har studerats utifrån Jan Gehls metoder för att studera det offentliga livet. Den avgränsade platsens fysiska förutsättningar har inventerats. Faktorer som sol, vind, material, verksamheter och fysisk utformning har studerats. Platsen har därefter analyserats utifrån Gehls 12 kvalitetskriterier. Kartläggning av människors sociala beteende i relation till platsens byggda miljö har även utförts. Denna kartläggning har bestått av Gehls metoder counting, mapping och tracing. För djupare insikt i platsens fysiska och sociala förutsättningar har förbipasserande intervjuats. Intervjufrågorna bestod av strukturerade frågor med möjlighet för respondenter att svara med öppna svarsalternativ. Detta gav respondenterna möjlighet att fritt beskriva hur de upplevde Centralplan och vad de ville förändra. Sedermera, grupperades och analyserades intervjusvaren för undersökning av statistiska samband. Utifrån observationer, intervjuer samt erhållen kunskap om planeringsteorier, har ett gestaltningsförslag skapats över en mer attraktiv, social och välkomnande mötesplats för alla människor. Studien har, med detta gestaltningsförslag över Centralplan, bidragit till kunskapen om svenska småstäders och deras byggda miljöer, samt hur dessa kan analyseras utifrån Gehls metoder.<br>Tierp´s municipality is experiencing demographic and economic growth, and Tierp´s urban centre needs renewal and renovation. People living in a city experiencing growth have higher expectations and higher demands on public spaces´ sustainability and design. Tierp´s municipality seeks for an urban environment that is more attractive, more secure and more available. This case study is delineated to Centralplan. The site contains Tierp´s centre for public transport, shops and other businesses. The purpose of this study is to fulfill the municipality goals by creating a social and welcoming meeting place for everybody. Centralplan was studied with Jan Gehl´s methods of studying public life. Centralplan´s built environment was inventoried and factors such as sun, wind, building material, businesses and physical design were documented. Centralplan was analyzed with Gehl´s 12 quality criterias. People´s social behaviour in relation to the built environment was also studied through Gehl´s methods counting, mapping and tracing. For deeper insight into Centralplan´s physical and social conditions, bypassers were interviewed. The interviews consisted of structured questions with possibility to answer openly, giving respondents the chance to freely explain how they experienced Centralplan and what they wanted to change. Subsequently, the answers were grouped and analyzed for statistical significance. Through observations, interviews and obtained knowledge about planning theory, a design proposal has been created over a more attractive, social and welcoming meeting place for everybody. The creation of a design proposal over Centralplan, has contributed to the knowledge of Swedish towns and their built environments, and thus how they can be analyzed with Gehl´s methods.
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Rajala, Elizabeth M. "Between You and Me We: an architecture of interaction." Cincinnati, Ohio : University of Cincinnati, 2009. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1243005213.
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Thesis (Master of Architecture)--University of Cincinnati, 2009.<br>Advisor: Gerald Larson. On T.P. the word "we" appears on a new line and without parentheses. Title from electronic thesis title page (viewed July 28, 2009). Includes abstract. Keywords: social sustainability; sociability; interaction; Jan Gehl; housing; community. Includes bibliographical references.
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Lindeborg, Tomas, and Julia Kågström. "Skeppsbyggaren : Ett miljöcertifierat gestaltningsförslag med hållbar stadsplanering i fokus." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-12039.
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Gävle beräknas inom de kommande åren växa med cirka 500 invånare per år, vilket måste avspeglas i satsningar på bostäder, arbete och service. Fastigheten Skeppsbyggaren, mer känd som Philipsontomten, bär anor från svunna industriepoker och har sedan mitten av 1990-talet stått oexploaterad. Genom att närma sig vattnet med en alltmer publik verksamhet och bostäder kan kvarteret Skeppsbyggaren medföra en förtätning samt utvidgning av de centrala delarna i Gävle. Vidare kan fastigheten bli ett bidrag till en redan värdefull kulturmiljö, något som bör ligga i både invånarnas, kommunens och ägaren CA Fastigheters intresse. Vårt arbete har gått ut på att projektera ett miljöcertifierat gestaltningsförslag för Skeppsbyggaren som bidrar till en hållbar stadsutveckling och en positiv exponering av Gävle som stad. Att miljöcertifiera byggnader är något som vunnit mark de senaste åren, men vid projektering av hela bostadsområden finns ett värde i att ta ett ytterligare steg och behandla hållbarhetsfrågor rörande hela stadsdelen. Den problembild som varit knuten till fastigheten är den intilliggande industriverksamheten, områdets ansträngda trafiksituation och att gator i anslutning till fastigheten upplevs som otrygga och därmed oattraktiva att beträda. Även den höga risken för markföroreningar associerade till tidigare verksamheter har varit en central fråga. Med stöd av Gehls och Jacobs teorier om en stadsdelsplanering som lockar till möten, aktiviteter och trygghet har vi med människan i centrum tagit fram vårt gestaltningsförslag. Området utgörs huvudsakligen av flera sammanhängande byggnader som tillsammans skapar en bullerdämpande barriär mot Södra Skeppsbron och Brodingatan. Denna bebyggelse kompletteras med ett punkthus samt en lågbebyggelse i form av radhuskroppar på innergården. Målet har varit att med huskropparnas placering och dess arkitektoniska utformning skapa ett varierat och inbjudande område som uttrycker sitt århundrade med god arkitektur. Resultatet innefattar bland annat ett underjordiskt garage, förslag till systemlösningar, egen elproduktion och brukarrelaterade lösningar för en mindre miljöpåverkan såsom bilpool, urban odling och individuell mätning av elförbrukning med mera. Förslaget uppnår betyget VERY GOOD vid vår certifiering med miljöcertifieringsverktyget BREEAM Communities.<br>Gävle is expected to increase its population with approximately 500 inhabitants per year in the foreseeable future, which should be reflected in the development of housing, work and services. The building plot Skeppsbyggaren, also known as Philipsontomten (the Philipson plot), dates back to an old industrial epoch and has since the mid-1990s, remained undeveloped. By approaching the water with an increasingly public business and residential district Skeppsbyggaren can lead to a densification and extension of the central parts of Gävle. The site could furthermore contribute to an already valuable cultural environment, which should be of interest for the inhabitants, the society and the owner CA Fastigheter. Our aim has been to design an eco-certified housing project proposal for Skeppsbyggaren, which contributes to a sustainable urban development and a positive exposure of Gävle. In recent years, the certification of building is something that gained ground, but during the development of entire neighborhoods is worthwhile consider sustainability issues at a larger scale, throughout the district. The problems associated with the property have been the adjacent industrial activity, the area’s strained traffic and that the nearby streets are perceived as unsafe and therefore unattractive to use. The high risk of contaminated land linked to past activities was also a central issue. We have developed a design proposal with a people-centered focus supported by Gehl’s and Jacob’s theories of planning a high functional neighborhood that attract human encounters, social activities and security. The area mainly consists of several connected buildings, which together create a noise-reducing barrier against the adjacent streets. This development is complemented by tower blocks and low buildings in the form of townhouses, located in the courtyard. Our aim regarding the positions of the buildings and its architectural designs has been to create a diverse and inviting neighborhood that expresses good architecture out of its own century. The final result includes an underground garage, selection of systems such as ventilation and heating, a local production of electricity and user-related suggestions for a smaller environmental impact such as carpools, urban gardening and individual metering of the consumption of electricity, and so on. Our proposal achieves the grade VERY GOOD in our certification using BREEAM Communities.
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Niemi, Embla, and Lovisa Gyllenswärd. "Placemaking på Värnhemstorget : Betydelsen av feministisk stadsplanering för en socialt hållbar stadsutveckling." Thesis, Malmö universitet, Institutionen för Urbana Studier (US), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-43907.
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SAMMANFATTNING Det finns en problematik med städer som innehåller otrygga och exkluderande stadsrum,eftersom den demokratiska rätten till staden då hotas. Problemet grundar sig i detstrukturella förtryck mot personer som skiljer sig från den förväntade normen kring kön,etnisk tillhörighet, klass, sexualitet, funktionsvariationer samt könsidentitet och könsuttryck(Almén 2014). Detta ställer krav på planerare och arkitekter att inkludera olika målgrupper ien stadsutvecklingsprocess, för att på så sätt säkerställa att stadsrum både är utformade föroch används av en bred målgrupp. I syfte att främja den sociala hållbara stadsutvecklingen ären högst grundläggande faktor för att en plats ska kännas trygg att få folk att stanna kvar påplatsen och inte bara passera förbi. “Placemaking är […] att omvandla otrygga, outnyttjade stadsmiljöer till platser med enstark identitet som lockar människor. […] syftet är att öka användningen av det offentligarummet samt att skapa ett mervärde i stadsmiljön.” (Stiftelsen Tryggare Sverige 2018b) Utöver det egna insamlade empiriska materialet har en tillämpning av teoretiska perspektiv- i form av forskning, kartläggningar och konkreta modeller för platsutveckling - legat tillgrund för att föra studien framåt, både i förståelse av ämnet men även i form av praktiskatillämpningar. Underlaget har vidare delats in i följande kategorier: Placemaking, Feministisk Stadsplanering och Kartläggning av av mänskliga beteenden i urbana miljöer. Genom fyra faser används blandade metoder för att på ett varierat sätt undersöka deproblemformuleringar som ställs. Det hela startar i en enkätundersökning, som leder till enjämförande studie, vilken i sin tur leder till en etnografisk studie på den utvalda platsen, somslutligen mynnar ut i ett gestaltningsförslag. Hela studien är beroende av den föregåendefasen då slutresultatet är baserat på allt tidigare material som blivit insamlat. Utifrån det insamlade materialet, tidigare publicerad statistik och litteratur i feministiskstadsplanering formuleras en hypotes och teori som kan förklara varför kvinnor respektivemän upplever (o)trygghet i offentliga miljöer. Därmed gör vi ett eget teoretiserande omvarför samhället ser ut som det gör. Slutsatserna ur det observerade faktumet härleds ochexemplifieras i den sista fasen, genom ett gestaltningsförslag på Värnhemstorget.<br>ABSTRACT There is a problem with cities that contain unsafe and exclusive urban spaces since thedemocratic right to the city is threatened. The problem is based on the structural oppression ofpeople that differs from the expected norm regarding gender, ethnicity, social class, sexuality,disability, gender identity, and gender expression (Almén 2014). This requires planners andarchitects to include different target groups in the urban development process, to ensure thaturban spaces are both designed for and used by a broad target group. In order to promotesocially sustainable urban development, a fundamental factor for a place to feel safe is to getpeople to stay in the place and not just pass by. “Placemaking is […] about transforming unsafe, unused urban environments into placeswith a strong identity that attracts people. […] the aim is to increase the use of publicspace and to create added value in the urban environment.” (Stiftelsen Tryggare Sverige2018b) In addition to the own collected empirical material, an application of theoretical perspectives -in the form of research, surveys and concrete models for site development - has been the basisfor advancing the study, both in understanding the subject but also in the form of practicalapplications. The data has been further divided into the following categories: Placemaking,Feminist Urbanism and Mapping of human behavior in urban environments. Through four phases, mixed methods were used to examine the problem formulations in avaried way. It all started with a survey, which led to a comparative study, which then led to anethnographic study at the selected site, which ultimately resulted in a design proposal. Thewhole study was dependent on the previous phase as the finished result was based on allprevious material that had been collected. Based on the collected material, previously published statistics, and literature in feministurbanism, a hypothesis and a theory was formulated that could explain why women and menexperience (un)safety in public environments. Thus, we made our own theorizing about whysociety works the way it does. The conclusions from the observed fact were derived andexemplified in the last phase, through a design proposal for Värnhemstorget.
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Argerich, Jennie. "Offentliga rum : En statistisk undersökning av upplevelsen av platserna Hornstull torg och Skärhomstorget." Thesis, Uppsala universitet, Matematiska institutionen, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-321831.
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This thesis evaluates public spaces based on the relationship between humans and thephysical environment. A comparative study was developed, comparing two differentpublic spaces, Hornstull torg and Skärholmstorget. The two places have beenstatistical analysed through chisquare tests and evaluated based on different factors, toidentify strengths and weaknesses. The factors have been identifiedas important forpublic spaces to be perceived as attractive and have been determined with help froma theoretical framework based on urban research. Social progress has resulted in changes on how we use public spaces which createsnew demands on the surroundings. The study concludes that a public space'sattractiveness is a complicated and multifolded concept that has different meanings fordifferent people. On the other hand, it is clear that public spaces are connected toboth social and physical structures and the combination of these two dimensionsdecides how the place is perceived and used. The results from the chisquare-tests show differences depending on gender and ageon how they experience public space. Skärholmstorget fulfils more of the factors thathave been identified as crucial for an attractive public space than Hornstull torg does.However, the majority of the respondents perceive Skärholmstorget as moreinsecure than Hornstull torg. This may have effect on how often the public space isused.
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Nilsson, Max. "VR som verktyg i kommunal fysisk planering av offentliga platser." Thesis, Blekinge Tekniska Högskola, Institutionen för fysisk planering, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16382.
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Digitaliseringen av samhället är igång och Sveriges regering har satt som mål att Sverige ska vara i spetsen för utveckling och innovation inom området. Efterfrågan på digitala lösningar är stor bland befolkningen och satsningar görs i de flesta branscher. Inom ämnesområdet fysisk planering innebär detta bland annat att nya tekniska lösningar bör utforskas för att hålla jämna steg med de krav som ställs på samtidens och framtidens medborgardeltagande. Syftet med uppsatsen var att undersöka virtual reality-teknikens potential i kommunal fysisk planering och hur den kan tillämpas. Med utgångspunkt i Jan Gehls ”12 kvalitetskriterier för offentliga platser” analyserades fallet Nättraby centrum i Karlskrona kommun som vidare mynnade ut i en redovisning av process samt arbetsmetodik för arbete med VR i kommunal planering. Gehls metod applicerades sedan på den virtuella miljön genom att tjänstemän på Karlskrona kommun fick utvärdera projektet. Syftet med appliceringen av analysmetoden var att belysa styrkor och svagheter med tekniken för att genom intervju med tjänstemän kunna diskutera vilka situationer den är tillämpbar samt hur planförslag bör visualiseras för att uppnå kommunens syfte med tekniken. Resultatet av uppsatsen visade att analysmetoden ”12 kvalitetskriterier för offentliga platser” var tillämpbar i en virtuell miljö men att vissa kriterier var lättare att bedöma än andra. De kriterier som ansågs lätta att bedöma i den fysiska miljön var relaterat till skala, rumslighet och relation mellan volymer. De kriterier som ansågs svåra var relaterade till faktisk rörelse på platsen och sinnesupplevelser som inte var representerade (ljud och känsel), men de behövde inte nödvändigtvis inkluderas i simuleringen för att yrkesverksamma planeringsarkitekter skulle kunna bedöma. Vid utformandet av planförslag i VR ansågs det vara extra viktigt att kommunicera förslagets föränderlighet till medborgare samt att diskutera och kunna motivera förslagets detaljeringsgrad baserat på förslagets kommunikationssyfte.<br>The process of digitalizing our society is in full swing and the Swedish government has set its sight on Sweden being the spearhead of development and innovation in the field. There is great demand for digital solutions among Swedish citizens and most branches of industry are making investments to answer it. What this means for spatial planning is, among other things, that new technical solutions should be explored to keep up with citizens demands regarding participatory planning today and in the future. The purpose of this thesis has been to explore virtual reality technology’s potential and application in municipalities spatial planning. With point of departure in Jan Gehl’s “12 quality criteria for public space” a case study was performed on Nättraby center in Karlskrona municipality. This was followed by a plan proposal constructed in 3D with a documented design process and work methodology for working with VR in spatial planning. Gehl’s method was then applied in the virtual environment where officials from Karlskrona municipality evaluated the plan proposal. The purpose of the method for analyzing public space was to highlight the strengths and weaknesses of the technology to create a discussion with officials from Karlskrona municipality, through an interview, about where VR is best used and how spatial planning proposals should be visualized to fulfill the municipality’s intent with using the technology. The results showed that the analysis method “12 quality criteria for public space” proved to be applicable in a virtual environment, but some of the criteria were easier to evaluate than others. Criteria related to scale, space and relation between volumes deemed easiest to evaluate. Criteria related to actual movement and senses that were not simulated like sound and touch were deemed harder to evaluate, but their lack of representation did not hinder the planning officials to evaluate the criteria. In the design of planning proposals for VR the officials emphasized the need to communicate to its citizens that the proposal was changeable and discuss the importance of the relation between level of detail and the proposals communicative intent.
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Černý, Patrik. "Implementování současných evropských principů řešení veřejného prostoru do českých měst." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-401485.
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The goal of this thesis is to define the current public space of a city and to introduce its main elements and characteristics, also the planning principles of public space and types of public activities of a citizen in a city. The thesis is mainly focusing on the ideas and principles of a Danish architect and urbanist Jan Gehl, after who I am describing types of cities and as well as the analysis of main principles in city planning according to the book Cities for People. It describes the relationship between the citizen and the city and it follows the main questions of creating an ideal public space for its residents and visitors. After the conducted detailed research of a specific place, the thesis establishes positive and negative aspects of the given space and creates a methodology for designing the public space. Thanks to qualitative questionnaires, I evaluated the views of citizens on key questions about the quality of given public space.
Books on the topic "Jan Gehl"
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Newman, Peter, and Annie Matan. People Cities: The Life and Legacy of Jan Gehl. Island Press, 2016.
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Rass, Friederike, Anita Sophia Horn, and Michael Braunschweig, eds. Entzug des Göttlichen. Verlag Karl Alber, 2018. http://dx.doi.org/10.5771/9783495813874.
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»Es geht nicht darum, die Religion wieder auferstehen zu lassen […]. Sondern es geht darum, die bloße Vernunft auf die Unbegrenztheit hin zu öffnen, die ihre Wahrheit ausmacht.« Im vielbehaupteten Trend einer »Rückkehr zur Religion« erweist sich Jean-Luc Nancys Philosophie als widerständig: Einerseits steht die Frage nach der Bedeutung von Religion und insbesondere des Christentums im Mittelpunkt seiner Überlegungen, andererseits stellt er sich nicht in die Tradition einer neuen (De-)Legitimation von Religion. In Auseinandersetzung mit Jean-Luc Nancy, insbesondere mit seinem Projekt einer »Dekonstruktion des Christentums«, widmen sich die Beiträge dieses Bandes der allgemeinen Verortung des Phänomens der Religion in pluralistischen Gemeinschaften aus theologischer und philosophischer Sicht.
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Bosetzky, Horst. Geh doch wieder rüber!: Jana weiss nicht, wohin sie gehört. [Horst Bosetzky]., Rororo-Rotfuchs ; 41. 1986.
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Faßbender, Kurt, and Wolfgang Köck, eds. Rechtliche Herausforderungen und Ansätze für eine umweltgerechte und nachhaltige Stadtentwicklung. Nomos Verlagsgesellschaft mbH & Co. KG, 2021. http://dx.doi.org/10.5771/9783748924241.
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Der Tagungsband widmet sich vielfältigen rechtlichen Herausforderungen und Ansätzen für eine umweltgerechte und nachhaltige Stadtentwicklung. Die Schwerpunkte liegen dabei auf dem Feld des kommunalen Klimaschutzes sowie auf dem Verkehrssektor. So geht es neben den Handlungsfeldern, Rechtsinstrumenten und Perspektiven der Anpassung um kommunale und regionale Wärmeplanung als neues Rechtsinstrument. Im Verkehrssektor werden sowohl der Rechtsrahmen für eine Verkehrswende in den Kommunen als auch die kommunalen Gestaltungsmöglichkeiten zur Förderung der E-Mobilität ausgelotet. Schließlich wird die Frage erörtert, wie die Kommunen den Flächenverbrauch reduzieren können, bevor sich der Tagungsband dem urbanen Wassermanagement und der wassersensiblen Stadtentwicklung widmet. Mit Beiträgen von Cathrin Zengerling; Juliane Albrecht; Christian Maaß; Roman Ringwald; Friederike Pfeifer, Felix Nowack; Jana Bovet und Moritz Reese.
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Friedrich, Markus, and Alexander Schunka, eds. Orientbegegnungen deutscher Protestanten in der Frühen Neuzeit. Klostermann, 2012. http://dx.doi.org/10.5771/9783465141563.
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Die Beiträge untersuchen, wie Protestanten des deutschsprachigen Raumes in der Frühen Neuzeit dem Orient begegneten und wie sie die Kulturen und Religionen des Nahen Ostens für eigene religiöse und gelehrte Ziele instrumentalisierten. Dabei geht es um konfessionelle Besonderheiten im Umgang mit der islamischen Welt, aber auch um das Problem, inwieweit Orientkontakte die Selbst- und Weltsicht der Protestanten Mitteleuropas prägten und die Ausdifferenzierung der christlichen Bekenntnisse beeinflussten. In fünf Fallstudien zeigen die Autoren, dass frühneuzeitliche Berichte über Orientreisen entscheidend durch das Bekenntnis ihrer Verfasser geprägt waren und zur protestantischen Propaganda dienen konnten (Alexander Schunka); dass Taufen muslimischer Kriegsgefangener im Reich wichtige Funktionen für die Selbstvergewisserung und Selbstinszenierung des Luthertums übernahmen (Markus Friedrich) und dass protestantische Gelehrte die Auseinandersetzung mit Geschichte und Sprachen des Vorderen Orients zur Abgrenzung zwischen Lutheranern, Reformierten und Katholiken einsetzten (Jan Loop). Die Studien thematisieren ferner, wie die Entstehung der Orientalistik als universitäres Fach im Alten Reich mit Strukturfragen innerhalb der protestantischen Theologenschaft zusammenhing (Asaph Ben-Tov) und schließlich, dass der Beginn der Forschungen zum ismailitischen Islam am Ende des 18. Jahrhunderts vom protestantischen Interesse an einem Goldenen Kalb vorangetrieben wurde und das europäische Islambild entscheidend verkomplizieren sollte (Dietrich Klein).
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Borucki, Isabelle, and Wolf Jürgen Schünemann, eds. Internet und Staat. Nomos Verlagsgesellschaft mbH & Co. KG, 2019. http://dx.doi.org/10.5771/9783845290195.
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You cannot form a state with the Internet—or can you? In contrast to post-territorial expectations from the early days of the Internet, the state seems to be increasingly in demand when it comes to coming to terms with the digital revolution. What is more, state structures have never been irrelevant in terms of the Internet but have influenced both it and digitalisation since their beginnings. This book explores the intriguing relationship between the Internet and the state in depth from an interdisciplinary perspective that includes political science, legal studies and communication studies. By examining sovereignty, privacy and security, the contributions it contains address the fundamental understandings and functions of the state. They deal with regulatory areas that have changed dynamically in the digital era: data protection, the administration of critical Internet resources and the regulation of media content. Finally, they also consider the changes to the players involved in this field and the courses of action open to them: parties and political communication, e-government and e-participation. With contributions by Isabelle Borucki, Andreas Busch, Myriam Dunn Cavelty, Florian Egloff, Katharina Gerl, Paula Helm, Norbert Kersting, Jan Niklas Kocks, Julia Pohle, Claudia Ritzi, Wolf J. Schünemann, Sandra Seubert, Thorsten Thiel, Martin Warnke and Alexandra Zierold.
Book chapters on the topic "Jan Gehl"
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Matan, Annie. "Jan Gehl." In Key Thinkers on Cities. SAGE Publications Ltd, 2017. http://dx.doi.org/10.4135/9781473983243.n16.
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Musselwhite, Charles. "Jan Gehl." In The Palgrave Handbook of Global Sustainability. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-38948-2_184-1.
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"Vorwort von Jan Gehl." In Sanfte Stadt. De Gruyter, 2022. http://dx.doi.org/10.1515/9783868597912-001.
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Taber, Douglass. "Advances in Alkene and Alkyne Metathesis." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0026.
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As alkene metathesis is extended to more and more challenging substrates, improved catalysts and solvents are required. Robert H. Grubbs of Caltech developed (Organic Lett. 2008, 10, 441) the diisopropyl complex 1, that efficiently formed the trisubstituted alkene 6 by cross metathesis of 4 with 5. Hervé Clavier and Stephen P. Nolan of ICIQ, Tarragona, and Marc Mauduit of ENSC Rennes found (J. Org. Chem. 2008, 73, 4225) that after cyclization of 7 with the complex 2b, simple filtration of the reaction mixture through silica gel delivered the product 8 containing only 5.5 ppm Ru. The merit of CH2Cl2 as a solvent for alkene metathesis is that the catalysts (e.g. 1 - 3) are very stable. Claire S. Adjiman of Imperial College and Paul C. Taylor of the University of Warwick established (Chem. Commun. 2008, 2806) that although the second generation Grubbs catalyst 3 is not as stable in acetic acid, for the cyclization of 9 to 10 it is a much more active catalyst in acetic acid than in CH2Cl2 . Bruce H. Lipshutz of the University of California, Santa Barbara observed (Adv. Synth. Cat . 2008, 350, 953) that even water could serve as the reaction solvent for the challenging cyclization of 11 to 12, so long as the solubility- enhancing amphiphile PTS was included. Ernesto G. Mata of the Universidad Nacional de Rosario explored (J. Org. Chem. 2008, 73, 2024) resin isolation to optimize cross-metathesis, finding that the acrylate 13 worked particularly well. Karol Grela of the Polish Academy of Sciences, Warsaw optimized (Chem. Commun. 2008, 2468) cross-metathesis with a halogenated alkene 16. Jean-Marc Campagne of ENSC Montpellier extended (J. Am. Chem. Soc. 2008, 130, 1562) ring-closing metathesis to enynes such as 19. The product diene 20 was a reactive Diels-Alder dienophile. István E. Markó of the Université Catholique de Louvain applied (Tetrahedron Lett. 2008, 49, 1523) the known (OHL 20070122) ring-closing metathesis of enol ethers to the cyclization of the Tebbe product from 23. The ether 24 was oxidized directly to the lactone 25.
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Taber, Douglass F. "Best Synthetic Methods: Reduction." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0008.
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Heshmatollah Alinezhad of Mazandaran University, Iran. developed (Tetrahedron Lett. 2009, 50, 659) the reagent 3, a white powder that is stable for many months, as a hydride donor for the reductive amination of aldehydes and ketones. Jean-Marc Campagne of the Institut Charles Gephardt Montpellier established (Synlett 2009, 276) a simple microwave protocol for reducing aldehydes and ketones to the corresponding hydrocarbons that looks general enough to become the method of choice for this important transformation. Joanne E. Harvey of Victoria University of Wellington, in the course of a total synthesis of Aigialomycind D, observed (J. Org. Chem. 2009, 74, 2271) that despite the high reactivity of the monosubstituted alkene of 7, the conjugated alkene could be selectively reduced. Brian S. Bodnar of SiGNa Chemistry described (J. Org. Chem. 2009, 74, 2598) a simple procedure for the reduction of an ester such as 9 to the alcohol 10, using Na dispersed on silica gel. Takao Ikariya of the Tokyo Institute of Technology designed (Angew. Chem. Int. Ed. 2009, 48, 1324) a Ru complex for the hydrogenation of N-acylsulfonamides and N-acylcarbamates such as 11 to the corresponding alcohol, 12. Remarkably, Hideo Nagashima of Kyushu University demonstrated (Chem. Commun. 2009, 1574) that even in the presence of the ester, the amide of 13 could be selectively reduced to the enamine 14. The enamine could be hydrolyzed to the aldehyde or reduced to the amine, but it is also an activated intermediate, for instance, for Michael addition to ethyl acrylate or methyl vinyl ketone. Diimide (HN=NH) is a useful reagent for selective reduction, as illustrated by the conversion of 15 to 17 . David R. Carbery of the University of Bath devised (J. Org. Chem. 2009, 74, 3186) a convenient procedure for the in situ generation of diimide from 16 and hydrazine hydrate. The reductive cleavage of tertiary nitriles to the corresponding hydrocarbon under dissolving metal conditions has been known for some time (J. Org. Chem. 1996, 61, 4219). Reduction of secondary nitriles required more forcing conditions, with K metal and crown ether (Tetrahedron Lett. 1985, 26, 6103).
Conference papers on the topic "Jan Gehl"
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Santos Rodrigues, Mara. "Arquitectura genérica: estratégia para humanizar o espaço público." In Seminario Internacional de Investigación en Urbanismo. Instituto de Arte Americano. Universidad de Buenos Aires, 2013. http://dx.doi.org/10.5821/siiu.5875.
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Estudamos a arquitectura genética como instrumento para a humanização do espaço público. Através de várias perspectivas de autores, como Karl Chu, Steadman, Zarzar, Jan Gehl, François Ascher, entre outros. Concluímos assim que para responder à problemática social e urbana que vivemos nas cidades actuais, a arquitectura genética poderia ser uma boa estratégia para do ponto de vista social, espacial, funcional, tecnológico e económico permitir uma boa adaptação e adequação do Ambiente Urbano ao Utilizador. Esta concepção genética tem como princípios a auto-replicação, mutação e auto-organização. Isto faz com que surjam novos materiais e novas técnicas. We studied the genetic architecture as a tool to humanize public space. Through various perspectives of 
 authors such as Karl Chu Steadman, Zarzar, Jan Gehl, François Ascher, and others. We conclude that in 
 response to the problematic social and urban living in cities today, genetic architecture could be a good 
 strategy for the social, spatial, functional, technological and economic point of view allow proper adaptation 
 and adjustment of the urban environment to the user. This design has genetic principles as self-replication, 
 mutation and self-organization. This gives rise to new materials and new techniques.
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Urbańska, Marta A. "Human dimension of urban spaces: International Biennale of Architecture Kraków 2015 and the polish awarded competition entries." In Virtual City and Territory. Centre de Política de Sòl i Valoracions, 2016. http://dx.doi.org/10.5821/ctv.8084.
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“Jan Gehl, an expert in humanisation of cities, is convinced that the enhancing of quality of our life in the cities is a derivative of the image of public spaces […] where people meet “in order to exchange ideas, to trade or simply to rest” (Jan Gehl, Life between buildings)’. These words hail from the Regulations of the International Biennale of Architecture 2015 whose motto was “Human dimension of urban spaces”. Its idea was to inspire the debate, both at the civic and self-governmental level, on Polish public spaces and their accessibility, through the presentation of architectural and urban designs. It was considered vital because of the colossal means from the EU cohesion funds which are being spent in Poland on urban revitalisations. Due to her involvement in the Biennale’s organisation (commissioner, juror, moderator), the authoress raises the issue of the mentioned and awarded Polish designs. All the entries (over 200) were competing in one of the three categories: of the realised designs, hypothetical ones and interventions-manifestos. They provide the perfect comparative material. As it was stated in the Protocol of the Jury, ‘In the competitions A i B , the Jury has mentioned and awarded completed projects in various scales, from small architectural scale through an urbanistic one to landscape, both mobile, temporary and permanent, yet always fulfilling the criterion of shaping urban spaces in human dimension’.
 The article, analysing the recent solutions and observations proposed by Polish architects, mostly for Polish public spaces, shall discuss whether one may observe positive tendencies towards the return to urbanity and to human, communal character of city’s public spaces.
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Guber, Klaus. "Action Sheet 66: Neutron Induced Nuclear Data Cross Section Measurements at JRC-Geel [Slides]." In U.S.-Euratom Coordination Meeting , Geel (Belgium) , Jun 2022. US DOE, 2022. http://dx.doi.org/10.2172/1886586.
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Contreras, Francisco Guerrero. "DE ESTACIONES Y ENTORNOS A ESPACIOS DE INTERFASE MULTIMODAL El caso de la Línea 1 del Tren Ligero de Guadalajara, México." In Seminario Internacional de Investigación en Urbanismo. Universidad Piloto de Colombia, 2022. http://dx.doi.org/10.5821/siiu.10016.
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Recently, the emerging interest in the study of public space and its urban dimensions associated with mobility has been enlivened and enriched; from Jane Jacobs (1961), Jean Gehl (2010) and others, to the most recent planning models such as the "superblock" or the "complete street" and tactical urbanism as an intentional guide to the planning of public space in cities. This research seeks to make clear that both, public space and urban mobility, cannot be confronted as two concepts, but rather, it suggests to face them as a new model to understand what happens between them when they coincide in a tempo-spatial point in the territory and follow the pattern of modal interchange making them potential elements of attraction, exchange, quality and transition around the public transport stations of the L1 of the Urban Electric Train in the Metropolitan Area of Guadalajara, México.
 Keywords: public space, urban mobility, multimodal interface, stations. 
 Topic: Public space and urban project in the contemporary metropolis. Recientemente se ha avivado y enriquecido el interés emergente en el estudio del espacio público y sus dimensiones urbanas asociadas a la movilidad; desde Jane Jacobs (1961), Jean Gehl (2010), Wojnarowska (2016), Duivenvoorden, Hartmann, Brinkhuijsen & Hesselmans, (2021) y otros, hasta los más recientes modelos de planificación como la “supermanzana” o la “calle completa” y el urbanismo táctico a manera de una guía intencionada sobre la planificación del espacio público en las ciudades. Esta investigación busca dejar en claro que tanto espacio público como movilidad urbana no se pude afrontar como dos conceptos, sino más bien, sugiere afrontarse como un nuevo modelo para entender lo que sucede entre éstos dos cuando coinciden de manera tempo-espacial en un punto del territorio y siguen la pauta del intercambio modal haciéndolos elementos potenciales de atracción, intercambio, calidad y transición para su futuro análisis en torno a las estaciones de la L1 del Tren Eléctrico Urbano en el Área Metropolitana de Guadalajara, México. 
 Palabras clave: espacio público, movilidad urbana, interfase multimodal, estaciones. 
 Bloque temático: Espacio público y proyecto urbano en la metrópolis contemporánea.
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Bustamante, Carlos J., Steven B. Smith, and Sergio Gurrieri. "Fluorescence microscopy and computer simulation studies of the mechanisms of reorientation of DNA molecules undergoing pulsed-field gel electrophoresis." In OE/LASE '90, 14-19 Jan., Los Angeles, CA, edited by Louis C. Smith. SPIE, 1990. http://dx.doi.org/10.1117/12.17800.
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Guber, Klaus. "Action Sheet 66: Neutron Induced Nuclear Data Cross Section Measurements at JRC-Geel [Slides]." In U.S.-Euratom Coordination Meeting, Held Virtually, Brussels (Belgium), 15-16 Jun 2020. US DOE, 2020. http://dx.doi.org/10.2172/1898405.
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Zhang, Mengchuan, Tianbo Liang, Hao Bai, et al. "Production Enhancement with a New Acid in Tight Sandstone Reservoirs: Accelerating Guar Breaking and Minimizing Formation Damage." In 56th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2022. http://dx.doi.org/10.56952/arma-2022-2322.
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ABSTRACT: Crosslinked guar is suitable for the stimulation of thick tight sandstone reservoir, which can enhance the height and length of propped fractures. However, conventional gel breakers can leave residues that causes formation damage. Acid can accelerate the gel breaking rate, but it may cause secondary precipitation damage after reacting with the reservoir rock. In this study, a new acid with a low reaction rate, chelating effect, and high gel breakage is developed that can enhance the conductivity of created fractures by minimizing gel residues and inhibiting secondary precipitations after acidification. The breaking rate of the crosslinked guar by a conventional gel breaker and the new acid is compared, during which the viscosity of the solution, the molecular weight, residues, and the change of pressure with time before and after displacement damage are measured with time. The results show that the gel breaking speed of adding new acid is twice that of adding conventional gel breaker. The average relative molecular weight of the polymer in the gel breaker is reduced by 20%, and the median particle size is less than 50 μm. The permeability recovery rate of adding the new acid is much higher than that of adding conventional gel breaker. The content of metal ions in the flowback liquid is much higher than that of the initial control sample, indicating that the acid system contains chelator has a better ability to inhibit secondary precipitation. Field test shows that the average daily oil production of a single well reaches 30 tons/day after the new acid is used. 1. INTRODUCTION Tight sandstone reservoirs are widely distributed, such as San Juan basin in the United States, Alberta basin in Canada, Ordos and Tarim Basin in China. Tight sandstone is defined as permeability less than 0.1 × 10−3 μm1 2 (Law et al., 1986). It is mainly caused by the massive precipitation of authigenic clay minerals, the crystallization of cement, and the change of primary pores. Compared with conventional reservoirs, tight sandstone has the characteristics of extremely low porosity and permeability, sensitive permeability to stress and high bound water saturation, and has fracture structures such as microfractures, cleavage fractures, and bedding fractures (Shanley et al., 2004).
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Perry, D. J., and F. G. H. Hill. "HUMAN AND PORCINE FVIII INHIBITOR RESPONSE FOLLOWING INFUSION OF HUMAN FVIII CONCENTRATE - MEASUREMENT USING AN AGAROSE GEL SYSTEM." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644056.
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Conventional methods for determining inhibitor levels in haemophiliacs are time consuming and labour intensive. The agarose gel technique of Jorquera et al. (1) has been modified and standardized to measure human and porcine inhibitors to VIII:C.26 samples from 12 haemophiliacs with inhibitors were analysed and in all cases antibody to human and porcine VIII:C was detected.Six haemophiliac patients with 'high responder-type' inhibitors were studied using stored plasma and the rise in antibody titres to both human and porcine VIII:C was determined sequentially during treatment with human FVIII concentrate.One patient (J. C.) had received a single treatment with porcine concentrate (Hyate:C) with no rise in porcine VIII:C.In 5 of 6 patients both porcine and human inhibitor titres rose but the porcine levels were less than the human. However, in the remaining high responder patient (I. I.) with previously mild haemophilia and no exposure to porcine FVIII, the rise in porcine antibody titre greatly exceeded that of human. This patient has continued to be treated with human FVIII concentrate during which time the human inhibitor titres have fallen more than the porcine.This method is simple to perform and has the advantage that both human and porcine inhibitor titres can be easily and quickly assessed so that the most appropriate therapy can be given.1. Jorquera JI, Carmona E, Aznar JA, Peiro A and Sanchez-Cuenca JM. (1985) A Standardized Method for Measuring Anti-FVIII:C Inhibitors in Haemophilia A by Coagulation Inhibition in Agarose Gel. Thromb. Haemostas. 54(2): 377-380.
Reports on the topic "Jan Gehl"
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Mitreden? Ja, wenn wir auch geh�rt werden! (ITA-Dossier Nr. 32, M�rz 2018). Self, 2018. http://dx.doi.org/10.1553/ita-doss-032.
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