Breaking down barriers: construction of a hybrid heterochiral membrane
Siliakus, Melvin - \ 2016
Wageningen University. Promotor(en): John van der Oost, co-promotor(en): Servé Kengen. - Wageningen : Wageningen University - ISBN 9789462579293 - 237
membranes - engineering - escherichia coli - fatty acids - isoprenoids - archaea - thermococcus kodakarensis - polymerase chain reaction - gene knock-out - dna modification - membranen - engineering - escherichia coli - vetzuren - isoprenoïden - archaea - thermococcus kodakarensis - polymerase-kettingreactie - inactivering van genen - dna-modificatie
Because of a chemical disparity between Archaeal and Bacterial membrane-lipids, these organisms thrive under distinct environmental conditions. Archaea are generally more resistant to extreme habitats like low pH, high temperature or presence of solvents. It has therefore long been hypothesized that the archaeal lipids provide archaeal cells with a higher robustness than bacterial lipids do for Bacteria. A recent study in which bacterial and archaeal lipids were mixed to form hybrid vesicles “lipid enclosed round structures”, for instance showed a higher temperature dependent stability than either the bacterial or archaeal lipid vesicles separately. In the present study, we therefore introduced the enzymatic machinery for assembly of archaeal lipids into the bacterium Escherichia coli. This engineering led to cells with a mixed membrane at a surprisingly high amount of 28% archaeal lipids. Although the intervention led to severe morphological malformations, the cells indeed showed an increased robustness to extreme cold and butanol.
Humanitarian Logistics and Sustainability
Klumpp, Matthias ; Leeuw, Sander de; Regattieri, Alberto ; Souza, Robert de - \ 2015
Cham : Springer International Publishing (Lecture Notes in Logistics ) - ISBN 9783319154541
supply chain management - logistics - economics - engineering - sustainable development
This contributed volume combines conceptual and strategic research articles dealing with the "why" and "to what end" of sustainable operations in humanitarian logistics, as well as operational research contributions regarding the "how" from the United Nations as well as from researchers and organizations from different countries (Germany, Australia, Singapore, Italy, Denmark, Jordan). The target audience primarily comprises research experts, decision makers and practitioners in the field, but the book may also be beneficial for graduate students.
Innovaties in gewasbescherming gebruiksklaar voor praktijk : in vier stappen naar een gezonde kas
Zijlstra, Carolien - \ 2015
horticulture - greenhouse horticulture - plant protection - vegetables - ornamental crops - engineering - detection - agricultural research - plant disease control - monitoring - endophytes - spraying
Greening production and consumption: the case of the appliance and dairy industries in Thailand
Thongplew, N. - \ 2015
Wageningen University. Promotor(en): Gert Spaargaren, co-promotor(en): Kris van Koppen. - Wageningen : Wageningen University - ISBN 9789462574397 - 176
duurzaamheid (sustainability) - consumptie - productie - consumenten - milieubeleid - zuivelindustrie - toestellen - computerwetenschappen - engineering - thailand - sustainability - consumption - production - consumers - environmental policy - dairy industry - appliances - computer sciences - engineering - thailand
Thesis title: Greening production and consumption: The case of the appliance and dairy industries in Thailand
This research looked into the greening of the appliance and dairy industries in globalizing Thailand from a product chain perspective. It studied roles and strategies of appliance and dairy companies in greening consumption with an explicit involvement of consumers. This research finds that appliance and diary have increasingly attempted to engage Thai consumers in buying and using more sustainable products. To do so, companies employ different consumer-oriented strategies, including providing environmental information; however, they do not yet have a full-fledged consumer-oriented strategy to activate and engage (silent green) consumers. The study summarizes that appliance and diary companies in Thailand can advance their consumer-oriented strategies for better engaging Thai consumers (with green products and green markets) by acknowledging the role of consumers as citizens, recognizing emerging sustainable practices and lifestyles of citizens, and organizing consumer groups.
CROPS : Clever Robots for CROPS
Bontsema, Jan - \ 2015
agriculture - forestry - harvesting - robots - automation - automatic control - instrumentation - spraying - engineering
Concurrent Engineering in the 21st Century
Stjepandic, Josip ; Wognum, P.M. ; Verhagen, Wim - \ 2015
Dordrecht : Springer - ISBN 9783319137759
innovaties - economie - engineering - ontwerp - innovations - economics - engineering - design
Presenting the gradual evolution of the concept of Concurrent Engineering (CE), and the technical, social methods and tools that have been developed, including the many theoretical and practical challenges that still exist, this book serves to summarize the achievements and current challenges of CE and will give readers a comprehensive picture of CE as researched and practiced in different regions of the world. Featuring in-depth analysis of complex real-life applications and experiences, this book demonstrates that Concurrent Engineering is used widely in many industries and that the same basic engineering principles can also be applied to new, emerging fields like sustainable mobility. Designed to serve as a valuable reference to industry experts, managers, students, researchers, and software developers, this book is intended to serve as both an introduction to development and as an analysis of the novel approaches and techniques of CE, as well as being a compact reference for more experienced readers.
Organic Meat Production and Processing
Ricke, Steven C. ; Loo, Ellen J. Van; Johnson, Michael G. ; O'Bryan, Corliss A. - \ 2012
Wiley-Blackwell - ISBN 9780813821269
engineering - meat hygiene - natural foods - chemical engineering - food sciences
Organic Meat Production and Processing describes the challenges of production, processing and food safety of organic meat. The editors and international collection of authors explore the trends in organic meats and how the meat industry is impacted. Commencing with chapters on the economics, market and regulatory aspects of organic meats, coverage then extends to management issues for organically raised and processed meat animals. Processing, sensory and human health aspects are covered in detail, as are the incidences of foodborne pathogens in organic beef, swine, poultry and other organic meat species. The book concludes by describing pre-harvest control measures for assuring the safety of organic meats. Organic Meat Production and Processing serves as a unique resource for fully understanding the current and potential issues associated with organic meats.
Keesman, K.J. - \ 2011
London : Springer - ISBN 9780857295217 - 349
engineering - controle - beeldverwerking - spraak - regeltheorie - mechatronica - control - image processing - speech - control theory - mechatronics
Summary System Identification Introduction.- Part I: Data-based Identification.- System Response Methods.- Frequency Response Methods.- Correlation Methods.- Part II: Time-invariant Systems Identification.- Static Systems Identification.- Dynamic Systems Identification.- Part III: Time-varying Systems Identification.- Time-varying Static Systems Identification.- Time-varying Dynamic Systems Identification.- Part IV: Model Validation.- Model Validation Techniques.- Part V: Appendices: Matrix Algebra; Statistics; Laplace, Fourier and z-Transforms; Bode Diagrams; Shift Operator Calculus; Recursive Least-squares Derivation; Dissolved Oxygen Data.
A framework to introduce flexibility in crop modelling: from conceptual modelling to software engineering and back
Adam, M.Y.O. - \ 2010
Wageningen University. Promotor(en): Herman van Keulen; J. Wery, co-promotor(en): F.A. Ewert; Peter Leffelaar. - [S.l. : S.n. - ISBN 9789085857648 - 190
systeemanalyse - computersimulatie - wiskundige modellen - computer software - engineering - gewasproductie - gewasopbrengst - systems analysis - computer simulation - mathematical models - computer software - engineering - crop production - crop yield
Keywords: model structure, uncertainty, modularity, software design patterns, good modelling practices, crop growth and development.
This thesis is an account of the development and use of a framework to introduce flexibility in crop modelling. The construction of such a framework is supported by two main beams: the implementation and the modelling beam. Since the beginning of the 1990s, the implementation beam has gained increasing attention in the crop modelling field, notably with the development of APSIM (Agricultural Production Systems sIMulator) in Australia, OMS (Object Modelling System) in the United States, and APES (Agricultural Production and Externalities Simulator) in Europe. The main focus of this thesis is on the modelling beam and how to combine it with the implementation beam. I first explain how flexibility is adopted in crop modelling and what is required for the implementation beam of the framework, namely libraries of modules representing the basic crop growth and development processes and of crop models (i.e. modelling solutions). Then, I define how to deal with this flexibility (i.e. modelling beam) and more specifically I describe systematic approaches to facilitate the selection of the appropriate model structure (i.e. a combination of modules) for a specific simulation objective. While developing the framework, I stress the need for better documentation of the underlying assumptions of the modules and of the criteria applied in the selection of these modules for a particular simulation objective. Such documentation should help to point out the sources of uncertainties associated with the development of crop models and to reinforce the role of the crop modeller as an intermediary between the software engineer, coding the modules, and the end users, using the model for a specific objective. Finally, I draw conclusions for the prospects of such a framework in the crop modelling field. I see its main contribution to (i) a better understanding in crop physiology through easier testing of alternatives hypotheses, and (ii) integrated studies by facilitating model reuse.
Exploring the biofluiddynamics of swimming and flight
Lentink, D. - \ 2008
Wageningen University. Promotor(en): Johan van Leeuwen, co-promotor(en): M.H. Dickinson; G.J.F. van Heijst. - [S.l.] : s.n. - ISBN 9789085049715 - 184
vissen - luchtinsecten - vogels - zaden - zwemmen - vliegen - dynamica - vloeistofmechanica - diermodellen - zoölogie - engineering - fishes - aerial insects - birds - seeds - swimming - flight - dynamics - fluid mechanics - animal models - zoology - engineering - cum laude
cum laude graduation (with distinction)
27th Benelux Meeting on Systems and Control, March 18-20, 2008, Heeze, the Netherlands : book of abstracts
Meinsma, G. ; Stigter, J.D. - \ 2008
Wageningen : Wageningen University, Systems and Control Group - ISBN 9789085049630 - 241
systemen - controle - systeemanalyse - robots - engineering - automatische regeling - regeltheorie - regeltechniek - regelsystemen - procesbewaking - modelleren - systems - control - systems analysis - robots - engineering - automatic control - control theory - control engineering - control systems - process control - modeling
Interfacial Transport Phenomena (Second edition)
Slattery, J.C. ; Sagis, L.M.C. ; Oh, E.S. - \ 2007
New York (US) : Springer - ISBN 9780387384382 - 830
engineering - mechanica - materialen - thermodynamica - oppervlakten - grensvlak - engineering - mechanics - materials - thermodynamics - surfaces - interface
Gives a presentation of transport phenomena or continuum mechanics focused on momentum, energy, and mass transfer at interfaces. This work includes a discussion of transport phenomena at common lines or three-phase lines of contact, and a theory for the extension of continuum mechanics to the nanoscale region immediately adjacent to the interface.
Bioprocess-Engineering Education with Web Technology
Sessink, O. - \ 2006
Wageningen University. Promotor(en): Hans Tramper, co-promotor(en): Rik Beeftink; Rob Hartog. - Wageningen : s.n. - ISBN 9789085044307 - 135
computerondersteund onderwijs - biotechnologie - verwerking - engineering - natuurwetenschappelijk onderwijs - internet - informatietechnologie - computer assisted instruction - biotechnology - processing - engineering - science education - internet - information technology
Development of learning material that is distributed through and accessible via the World Wide Web. Various options from web technology are exploited to improve the quality and efficiency of learning material.
PPO de Noord pioniert met het AutoMaatje
Hazelaar, W.J.M. ; Snoek, A.J. ; Jansma, J.E. - \ 2004
BloembollenVisie 2004 (2004)35. - ISSN 1571-5558 - p. 22 - 23.
bloembollen - automatisering - mechanisatie - engineering - gewasbescherming - meting - arbeidseconomie - onderzoek - globale plaatsbepalingssystemen - bemesting - ornamental bulbs - automation - mechanization - engineering - plant protection - measurement - labour economics - research - global positioning systems - fertilizer application
Ontwikkeling van zelfrijdende robot voor veldwerk in de bollenteelt (koppen van tulpen, bespuitingen, bemesting, mechanische onkruidbestrijding, meten van stikstofbehoefte, emissieloos spuiten, infrarood detectie)
The impact of policy on firms' performance: the case of CNC machine tool industry in India
Kumar, A. - \ 2003
Wageningen University. Promotor(en): J.C. van Dalen. - Wageningen : Wageningen Universiteit - ISBN 9789058089489 - 331
industrialisatie - overheidsbeleid - firma's - ontwikkelingslanden - prestatieniveau - india - engineering - bedrijven - industriebeleid - industrialization - government policy - firms - developing countries - businesses - performance - india - engineering - industrial policy
This study is about understanding how the government policy actually works at firm level in the context of developing countries' industrialization. In the literature, the discussions on impact of government policy on corporate performance primarily stress on macroeconomic aspects of industrial behavior and broad measures of industrial performance. They offer inadequate understanding of the mechanisms through which firms' performance is affected. This study attempts to fill in this void. It specifically endeavours to answer the research question: how Industrial policy affects performance of the firms? For empirical evidence, we considered the case of CNC Machine Tool industry in India. The study is primarily exploratory and qualitative based on case studies. The study endeavors to explain the policy-performance causation placing resources of the firms at the center of analysis. The three elements of the causality chain: policy, resource and performance are the building blocks of our analysis. The policy is seen in terms of technology, investment, education and training, market development and industrial governance. The resource is segmented as research, development and engineering; manufacturing; human; marketing and linkage. All these are further elaborated in terms of three more constructs: capability, mechanism and indicator. We analysed how the firms adopted various mechanisms to leverage the policies in force to build different capabilities that finally culminate in firms' performance. In certain cases the mechanisms were adopted to compensate the absence of policy or lessen its adverse impact. The promotional nature of Technology- and Investment policy as well as increased transparency in industrial governance since 1991, led the firms to emphasize more on mechanisms of assimilation of technology, new product development and subcontracting to build product development- and manufacturing capability that culminated in increased sales and exports. In the absence of suitable Education and Training policy the firms recruited educated persons, imparted in-plant training and periodic training to build human resource capability that increased firms' labour productivity. The observed divergence in firms' performance is attributed to variations in scope and implementation of mechanisms by the firms. A few pro-active firms identified what policy provides and how best that could be used or what policy does not provide and acted accordingly. The small firms appear to give less emphasis on adoption of mechanisms primarily due to resource constraints. The analyses further led to the identification of certain activities or `processes` that are found to be crucial for building various capabilities in the firms. A process encompasses one or more mechanisms either in its essence or in totality. It may also be an underlying factor that triggers mechanisms to work individually or together. The processes are visualised as acquisition, integration, development and generation. Their identification has added another bead in the strand of policy-performance causation. Like the mechanisms, the adoption of processes by the firms is also influenced by various policies in vogue that finally culminates in firms' performance. Thus the government needs to give proper emphasis on strengthening of these processes for sustained development of an industry. From the policy perspective, this research is an attempt to provide a systematic analysis that improves policy-making.
|On creating competition and strategic restructuring: regulatory reform in public utilities
Wubben, E.F.M. ; Hulsink, W. - \ 2003
Cheltenham/Northampton : Edward Elgar Publishers - ISBN 9781843763710 - 232
openbare voorzieningen - marktconcurrentie - liberalisering van de handel - industrie - engineering - west-europa - vs - regulatie - privatisering - netwerken - public utilities - regulation - market competition - trade liberalization - industry - engineering - western europe - usa - privatization - networks
Biosafety of metabolic engineering in plants : literature study in the framework of Policy Program 347, Biological Safety of Transgenic Plants commissioned by the Dutch Ministry of Agriculture, Nature Management and Fisheries
Nap, J.L. ; Gilissen, L.J.W.J. - \ 2002
Wageningen : Plant Research International - 46
secundaire metabolieten - metabolisme - planten - engineering - bioveiligheid - toxicologie - ecologie - pleiotropie - transgene planten - secondary metabolites - metabolism - plants - engineering - biosafety - toxicology - ecology - pleiotropy - transgenic plants
|Luftfeuchte regeln durch Energieschirmsteuerung - Regeln mit Geduld
Kempkes, F.L.K. - \ 2001
Das TASPO Magazin 2 (2001)9. - ISSN 1439-5517 - p. 18 - 19.
klimaat - kassen - thermische schermen - capsicum annuum - energiebehoud - automatische regeling - engineering - paprika - glastuinbouw - climate - greenhouses - thermal screens - energy conservation - automatic control - sweet peppers - greenhouse horticulture
Teelt van paprika met energiescherm: IMAG in Wageningen en PBG in Naaldwijk hebben een energiescherm ontwikkeld tegen de vochtproblemen in de glasteelt. Op een aantal bedrijven werd dit nieuwe scherm beproefd. Gelet werd op regelgedrag, energieverbuik, gewasontwikkeling en productie
Imaging Spectrometry: basic principles and prospective applications
Meer, F.D. van de; Jong, S.M. de - \ 2001
Dordrecht : Kluwer Academic Publishers - ISBN 9781402001949 - 403
environmental management - earth sciences - ecotoxicology - remote sensing - photogrammetry - geology - engineering - physics - applied statistics - milieubeheer - aardwetenschappen - ecotoxicologie - remote sensing - fotogrammetrie - geologie - engineering - fysica - toegepaste statistiek
|Beheer kwelderwerken; verslag monitoring kwelderwerken Waddenkust Friesland en Groningen nov. 1999 - nov. 2000
Dijkema, K.S. ; Bossinade, J.H. ; Nicolai, A. ; Frankes, J. ; Haan, K. ; Jongerius, H. ; Leusink, P. ; Venema, H. - \ 2000
Rijkswaterstaat, Directie Noord-Nederland - 43
bouwconstructie - dammen - engineering - constructie - bedrijfsvoering - natuurbescherming - ontgonnen land - nederland - friesland - groningen - waddenzee - kust - kwelder - natuur - vegetatie - Waddengebied - building construction - dams - construction - management - nature conservation - reclaimed land - netherlands - wadden sea