Thermal satellite imagery applied to a littoral macrobenthos investigation in the Gulf of Maine

The application of satellite imagery to oceanographic problems has grown in recent years. Its use in biological oceanography, however, has been largely limited to studies of primary productivity. The ability of thermal satellite imagery to identify coastal oceanic fronts suggests that there may be an application to macrobenthos investigations. This communication describes how thermal satellite imagery was applied to the study of sand-beach community distribution in the Gulf of Maine.     

No Resistance

In 2006, Peter Lynch (USA) and Gustavo Crembil (Argentina/USA) established THEM, an architectural partnership, after several years of a collaborative practice drawing upon the fields of design, architecture, performance art, communication, and social and ecological activism. The "Pleasure Garden," THEM's proposal for the 2008 YAP PS1/MoMA competition, continues an exploration of "craft in the age of globalization" and suggests what such an architecture might look like.     

Toward a Geography of the Globalization of Architecture Office Networks

This paper examines the globalization of architectural practice, focusing on the global strategies of architectural firms in relation to those of advanced business services and to the evolving network of world cities that provides the spatial framework for economic globalization. A basic geography of global architecture office networks is identified, and multivariate statistical analysis is used to identify four distinctive global arenas in which architectural firms are involved. In a final section, the implications of these findings for architectural education are discussed.     

Influence of trypsin action in yoghurt milk on the release of caseinophosphopeptide-rich fractions and physical properties of the fermented products

The influence of trypsin action in yoghurt milk on the release of caseinophosphopeptide (CPP)-rich fractions was studied and the physical properties of the fermented products determined. Trypsin treatment of skim milk led to increased fermentation times and a substantially lowered production of l -lactic acid as well as to delayed and reduced proteolysis caused by peptidases of the starter cultures. The functional properties of the milk proteins were decreased and the sensory properties less pronounced in yoghurt from trypsin-treated milk, but were described as less bitter than samples from nontreated milk. The CPP sequences β-CN(1–25)-4P and α _s1 -CN(43–79)-7P were released during enzyme treatment.     

Heat sensitivity of Mycobacterium avium ssp. paratuberculosis in milk under pilot plant pasteurization conditions†

Raw cow's milk inoculated with four laboratory strains (10²?10⁵ cfu/mL) of Mycobacterium avium ssp. paratuberculosis (Map) was pasteurized in a custom designed pilot plant pasteurizer having a maximum throughput of 580 L/h under turbulent flow conditions. Following 16 pasteurizer trials none of the Map strains survived high‐temperature short‐time conditions (72.5°C × 27 s) whether milk was homogenized or not. Two dairy herds containing animals which were faecal positive for Map were sourced and milk was collected for pasteurization studies. Milk collected from one herd on five occasions in the autumn did not contain any detectable Map organisms, and the second herd that was sampled on only one occasion in early winter was shown to contain Map at low concentration. Map was not detected in any of these milks following pasteurization at 72.5°C for 27 s. Two natural isolates of Map inoculated into milk were likewise inactivated on pasteurization.     

跃变比判别热解Si-C-N陶瓷EELS定量分析的有效性

电子能量损失谱（EELS）分析方法的运用为材料研究领域提供了有力的定性和定量手段。通过对内壳层电子激发谱跃变比的计算,能够获得样品相对厚度的参考信息。这一方法弥补了实验条件在同步采集等离子激发谱和内壳层电子激发谱方面的局限性,并为辨别EELS定量的可靠性提供依据。本文以Si3N4为例,对跃变比随样品相对厚度的变化规律进行了研究,并在低于最佳样品厚度的范围内得到了可靠的定量结果。类似的跃变比变化规律能够运用于成份均一的Si-C-N热解样品,然而对于非均一的Si-C-N退火样品则不适用。     

Model-structure selection by cross-validation

Two criteria for choosing between different model-structures are proposed. Their derivation is within a natural cross-validatory assessment context and is fairly assumption-free. In particular, the two criteria can be used for discriminating between non-nested model structures and, more importantly, the ‘true’ system is not required to belong to the considered set of models. Should the true system belong to the model set, the two proposed criteria will asymptotically reduce to some well-known structure selection criteria. This is believed to be a desirable feature of our proposals. On the other hand, it provides a nice cross-validation interpretation of some well-known model structure selection rules. Also, the cross-validation interpretation helps one to choose which criteria to use in a given application

The paper also has a second purpose, somewhat decoupled from that mentioned above. It contains an extensive survey of the literature that is useful in its own right.     

Preprocessing of side-looking airborne radar data†

Abstract

Studies on microwave surface scattering in The Netherlands have indicated the need for accurate radar systems for applications in remote sensing. An SLAR system with digital recording was developed and is now being used for several programmes. This system was designed with special attention to speckle reduction and system accuracy. The digital data are processed in a computer with algorithms for geometric and radiometric corrections. In the future aircraft position and attitude measurements will also be used in these correction algorithms. Examples of the results are shown.