深圳宝安国际机场 中国深圳

<正>深圳新航站楼的照明设计旨在实现一种平衡之美:光照勾勒出建筑的外形,优化标志性设计的形象,并极具实用性:灯光帮助乘客在陆空之间往返。在机场的持续运行过程中,我们格外留意24小时一周期内照明对乘客乘坐体验的影响。航站楼长度为1.5公里,双层屋顶如波浪般延绵起伏,设计独特,点缀着数千个六角天窗。六角天窗引入自然光,创造出动态的光影图案,在多变的设计中,我们有意使人造光与其交相辉映,从而使白日至黑夜过     

Frontal cationic curing of epoxy resins in the presence of defoaming or expanding compounds

Thermal frontal polymerization was carried out with trimethylol propane triglycidyl ether using two different BF₃‐amine complexes, B‐950 and B‐110 from Leepoxy, as initiators for cationic polymerization. The amounts of filler (kaolin or fumed silica), defoaming, or expansion agents were varied to study how the compositions affected the front velocity, expansion, and flexural modulus of the resulting epoxy resins. The polymer produced with B‐950 initiator showed higher modulus than the polymers produced with B‐110. Moreover, fumed silica created stronger materials than kaolin. The presence of BYK as a defoamer or an expansion agent such as the Expancel #80 was also able to affect significantly the mechanical properties. differential scanning calorimetry studies indicated that the conversion was complete and that kaolin and silica increased the rate of reaction. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 40339.     

Comparative Analysis of Ozone and Ultrasound Effect on the Elimination of Giardia spp. Cysts from Wastewater

Giardia spp. is a flagellate protozoan that presents two evolution forms, cysts and trophozoites. Cysts are resistant to chlorine, the most employed disinfectant agent in the treatment of water. For this reason, new techniques for the disinfection of waters that contain this parasite are necessary. This work evaluated the efficiency of the disinfection by ozone and ultrasound individually and simultaneously upon wastewater. The data obtained showed that after application, ozone, ultrasound, and combined techniques induced a significant elimination of Giardia spp. cysts. Furthermore, this effect was more accentuated when the two techniques were applied simultaneously.     

Towards an international tradable green certificate system—The challenging example of Belgium

In Europe, a common framework for renewable energy sources (RES) is aspired. Tradable green certificates (TGCs) are a market-based cost-efficient means to stimulate electricity production from RES. Since TGCs are the most widespread support scheme in Europe together with feed-in tariffs, chances are that a common European framework could well be based on TGCs. However, while integrating currently existing different national TGC systems, any remaining differences should be carefully considered. Just how difficult the creation of an international TGC market would be is illustrated in this paper by the case of Belgium, where no less than 4 different TGC systems exist nowadays. The example of Belgium illustrates that harmonizing different TGC systems is easier said than done and represents a serious challenge. This clearly illustrates that a single European support scheme for RES, however desirable, is still far in the future.     

An advanced prediction mechanism to analyse pore geometry shapes and identification of blocking effect in VRLA battery system

The aim of this investigation is to define a model of an alternating current impedance response that can identify the state of health of a porous electrode due to the blocked diffusion effect. To identify and simulate different pore geometries, an analytical differential equations system was studied. Standard and low performance battery products were simulated by the model and validated with electrochemical impedance spectroscopy (EIS) experimental data. The correlation between pore structure geometries and the related battery efficiency is also addressed. This investigation may clarify the possible reasons for low performance batteries. Identifying the benchmark pore geometry, parameters may be useful for the battery producers to improve the efficiency of their products. Various recovery methods are also included in this investigation to disperse the build-up of lead sulphate crystal that limits the electrolysis process in the low performance batteries.     

Anticoagulant, Antioxidant and Antitumor Activities of Heterofucans from the Seaweed Dictyopteris delicatula

In the present study, six families of sulfated polysaccharides were obtained from seaweed Dictyopteris delicatula by proteolytic digestion, followed by acetone fractionation and molecular sieving on Sephadex G-100. Chemical analyses demonstrated that all polysaccharides contain heterofucans composed mainly of fucose, xylose, glucose, galactose, uronic acid, and sulfate. The fucans F0.5v and F0.7v at 1.0 mg/mL showed high ferric chelating activity (～45%), whereas fucans F1.3v (0.5 mg/mL) showed considerable reducing power, about 53.2% of the activity of vitamin C. The fucan F1.5v presented the most prominent anticoagulant activity. The best antiproliferative activity was found with fucans F1.3v and F0.7v. However, F1.3v activity was much higher than F0.7v inhibiting almost 100% of HeLa cell proliferation. These fucans have been selected for further studies on structural characterization as well as in vivo experiments, which are already in progress.     

A new approach to spatial compression of stereoscopic videos

This paper presents a new spatial compression method specifically designed for stereo videos. Different form current compressors, which simply apply known 2D compression techniques, the method proposed here was developed taking into account specificities of the components of the spatial compression process which may impact the correct depth visualization, named Chrominance Subsampling, Discrete WaveletTransform (DWT) and Quantization. Each component was evaluated analyzing where datalosses occur and proposing ways to provide a good balance between compression ratio and image quality, minimizing losses in depth perception. The evaluations were made using standard objective (PSNR) and subjective (DSCQS) metrics, applied to an anaglyphic stereoscopic video base. The results showedour method is competitive regarding compression rate and providessuperior image quality.     

Validation of a UV Spectrophotometric Method for Determination of Proteolytic Activity of Enzymatic Detergents

Enzymatic detergents are widely used in health services. These products should be controlled to ensure their activity. In this paper, a UV spectrophotometric method for the determination of proteolytic activity in enzymatic detergents was validated. An artificial substrate (azocasein) was used to quantify the enzyme activity at 340 nm. The results showed that the method was satisfactory in respect to its specificity, linearity, precision, accuracy and robustness. This method fulfills both ICH’s and Brazilian criteria, demonstrating its suitability for routine analysis as well as its potential application for regulatory purposes.     

Examination of wooden shelves used in the ripening of a raw milk smear cheese by FTIR spectroscopy

The surface of wooden shelves used in the ripening of a raw milk smear cheese was examined by attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy. FTIR spectra of zones of wooden shelves in contact with cheeses or not (control) were acquired. This acquisition was performed either directly after cheeses removal or after brushing with water to remove cheese compounds deposited onto wood surfaces. Their analysis revealed that the degree of similarity between the ATR-FTIR spectra of unused and cleaned by brushing wooden shelves is higher than with the spectra of non-cleaned surfaces. The spectra of non-cleaned zones where cheeses were ripened namely differed in the 920–1180 cm^?1 and in the 1485–1780 cm^?1 regions. These regions can be assigned to proteins and polysaccharides and thus might correspond to deposits of cheese rind surface as well as to the presence of microbial biofilms on wooden shelves. Similarities in these spectral regions with those of cheese rind support this hypothesis. These observations indicate that ATR-FTIR spectroscopy is a rapid and valuable analytical tool to directly investigate the global chemical composition of very thin films such as microbial biofilms or cheese rind deposits present on wooden shelves which are not accessible to standard chemical methods.