滨河大道SAMUEL-DE CHAMPLAIN景观设计

滨河大道Samuel-De Champlain受政府委托为庆祝魁北克市400周年纪念而设计。 这座工程的目标是使2.5km的河岸景观和魁北克市连接圣劳花斯河的道路环境景观恢复生机。 这座工程在2008年6月24日竣工，之后即向公众开放。     

Waste Stabilization Ponds: A Viable Alternative for Small Community Treatment Systems

Waste stabilization ponds are widely used in many European countries, such as France and Germany, for the treatment of wastewater from mainly small communities. There would seem to be no reason why they should not also be a suitable treatment process for populations of under 2000 in the UK. The relative advantages and disadvantages of ponds are compared to other small community treatment systems, such as rotary biological contactors, biological filters and reed-bed systems, particularly in relation to effluent standards with respect to algae, nutrient removal and relative costs.     

INHIBITION OF LISTERIA MONOCYTOGENES BY LACTOCOCCUS LACTIS SUBSP. LACTIS ISOLATED FROM ITALIAN RAW HAM

A total of 168 strains of lactic acid bacteria were isolated from Italian raw ham and screened for antagonistic activity against Listeria monocytogenes by using an agar spot assay. Only one strain of Lactococcus lactis subsp . lactis produced antagonistic effects other than inhibition by low pH and hydrogen peroxide. The proteinaceous nature of the compound produced by L. lactis B10 was demonstrated by its inactivation by proteolytic enzymes. The cell-free culture super-natants (filtered and heat-treated) showed a bactericidal mode of action. Bacteriocin produced by L. lactis B10 was inhibitory to other lactic acid bacteria and one strain of Staphylococcus aureus, but not to the gram-negative bacteria tested .     

Influence of manufacturing conditions and discrimination of Northern Spanish cheeses using multi‐element analysis

Thirty‐three samples of cheeses belonging to different Protected Designation of Origin (PDOs) located in Northern Spain were analysed with the aim of studying the influence of processing conditions on the minerals and trace elements content in cheeses. The use of sheep milk, animal rennet, salting by immersion in a brine bath and ripening in cheeses reported, in general, the highest levels of trace elements. Moreover, pattern recognition analysis of multi‐elemental data, based on mineral and trace element content, was used to determine geographical traceability and to detect possible imitations with a correct classification in 98.5% of cases.     

ACCELERATED SOLVENT EXTRACTION AND FRACTIONED EXTRACTION TO OBTAIN THE CURCUMA LONGA VOLATILE OIL AND OLEORESIN

Curcuma longa L. is a common species among the aromatic plants in Brazil. The roots are used in dairy food as colorant and flavoring substitute for saffron. Turmeric (C. longa L.) contains curcuminoids that have antimutagenic and antioxidant activities, and is thus used for the formulation of foods for the prevention of cancer. Turmeric extracts rich in curcuminoids were obtained using a mixture of CO₂ and EtOH/IsoC₃, and the assays were performed in a fixed bed extractor at 300 bar, 303 K. The bed's height effect was studied, maintaining constant the bed diameter and porosity; for the accelerated solvent extraction, the cosolvent percentages used were 10, 50 and 90% (v/v), with or without a static period of 30 min. The curcuminoid content was monitored using a spectrophotometer; the volatile oil was analyzed by gas chromatography‐flame ionization detector, and the extract chemical profile was observed by thin‐layer chromatography. The overall extraction curves showed that by keeping the relation between solvent and raw material constant, maximum extraction yield was obtained in a shorter time using the lowest bed height (H_B/D_B = 1.8). The supercritical fluid extraction using 50% of the cosolvent that employed the static period increased the curcuminoid content (0.72% of curcuminoids) and reached ～10% of extract yield.     

The Dynamics of International Differentiation: A Multi-country Evolutionary Model

The paper presents some (admittedly preliminary) results onevolutionary modeling of open-economies interactions. The dynamicsis microfounded in a multiplicity of boundedly rational agentswho imperfectly learn how to innovate in environments characterizedby notionally unlimited opportunities. Micro discoveries—itis shown—can generate persistent system-level effects.Despite the absence in the model of any institutional specificityof individual countries, processes of innovative explorationand imitation yield international divergence, (less often) convergence,catching-up, and falling-behind.     

Modular Autonomous Electrical Power Supply Systems Examples of Several Stand Alone Systems

A modular system for the supply of remote electrical consumers was developed, which makes possible a variable integration of wind energy and photovoltaic plants in connection with a diesel engine and a battery storage. The wind energy converters, equipped with asynchronous generators, and a fast pitch control, work parallel with a synchronous generator. The generator is driven by a diesel engine by means of an overrunning clutch, or started by a small DC-motor. If the diesel is off, or the starting process by the DC-motor is finished, the synchronous generator works as a rotating phase-shifter and takes over voltage control and supply of reactive power.

The speed versus power control of the wind energy converters does not only make possible an optimized parallel operation with the diesel-generator unit, but also directly takes over frequency control when operated singly without diesel engine. The location of the wind energy plants does not depend on the site of the diesel engine, because control cables are not necessary. To avoid too frequent starting of the diesel, a storage battery is installed. The report describes the electrical and control technical design on principle, as well as the experience with the following, already built plants:

-Coupling of two wind energy plants for the supply of water irrigation pumps.

-Combination of two WECs with a short-time battery storage and a diesel-set.

-Combination of two WECs with a photovoltaic generator and a battery storage.