Concept

Malthusian growth model

Publications associées (10)

Quartiers résidentiels périurbains en transition : Comparaison multicritère de scénarios prospectifs à l'horizon 2050

Since the Industrial Revolution, urban spaces have undergone a profound reorganisation in parallel with a transformation of society and lifestyles. Urban sprawl has become widespread in Switzerland, as in countless countries, due to continuous innovations ...

EPFL2019

Growth kinetics and morphological analysis of homoepitaxial GaAs fins by theory and experiment

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Martin George Friedl, Lea Ghisalberti

Nanoscale membranes have emerged as a new class of vertical nanostructures that enable the integration of horizontal networks of III-V nanowires on a chip. To generalize this method to the whole family of III-Vs, progress in the understanding of the membra ...

AMER PHYSICAL SOC2018

Sample and population exponents of generalized Taylor's law

Andrea Rinaldo, Andrea Giometto, Amos Maritan

Taylor's law (TL) states that the variance V of a nonnegative random variable is a power function of its mean M; i.e., V = aM(b). TL has been verified extensively in ecology, where it applies to population abundance, physics, and other natural sciences. It ...

Natl Acad Sciences2015

An experimental comparison of silica gel and quartz sand grains as sediment media for growing vegetation at the laboratory scale

Paolo Perona, Peter Molnar, Zhe Jiang

In this technical note we compare silica gel grains and quartz sand as sediment media for vegetation root growth in laboratory experiments for ecohydrology and ecohydraulics. Silica gel grains become quite transparent when saturated with water. This would ...

Springer Verlag2009

Site-Controlled InGaAs Quantum Dots with Tunable Emission Energy

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Marco Felici, Arun Mohan

Semiconductor quantum-dot (QD) systems offering perfect site control and tunable emission energy are essential for numerous nanophotonic device applications involving spatial and spectral matching of dots with optical cavities. Herein, the properties of or ...

2009

Growth parameters and shape specific synthesis of silicon nanowires by the VLS method

Cyril Cayron

In this paper the effect of varying temperature, pressure and chemical precursors on the vapour-liquid-solid (VLS) growth of silicon nanowires (Si NWs) have been investigated. Some aspects of nucleation and growth mechanisms are discussed. Control on Si NW ...

2008

Colloidal strategies for preparing oxide-based hybrid nanocrystals

Raffaella Buonsanti

A review. Recent progress of colloidal chem. in the prepn. of multimaterial nanostructures incorporating transition-metal oxides is reviewed. Attention is focused on the emerging class of hybrid nanocrystals (HNCs), in which domains of different materials ...

2008

Dynamic feature selection for hardware prediction

Babak Falsafi

Most hardware predictors are table based (e.g. two-level branch predictors) and have exponential size growth in the number of input bits or features (e.g. previous branch outcomes). This growth severely limits the amount of predictive information that such ...

2006

Study of symbiotic, serological and antibiotic resistance characteristics of different Rhizobium cicerii strains

Majed Chergui

The symbiotic performance of 24 isolates of Rhizobium Cicerii, collected from different Tunisien soils, were studied in a growth room and compared to the performance of two international strains (Som and 43). The antibiotic and serologic tests showed a lar ...

1996

Mechanism of the Transition from Fractal to Dendritic Growth of Surface Aggregates

Klaus Kern, Harald Brune

THE similarity of many patterns formed in non-equilibrium growth processes in physics, chemistry and biology is conspicuous, and many attempts have been made to discover common mechanisms underlying their formation(1). A central question is what causes som ...

1994

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