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3,600 m3/h 의 하수처리수 탈질을 위한 유동상 생물여과
Kramer, J . P .,Wouters, J . W .,Noordink, M . P . M .,Molenkamp, H . W .,Anink, D . M . E .,Janus, J . M . 한국수처리기술연구회 2000 한국수처리학회지 Vol.8 No.3
STP De Groote Lucht in the Netherlands had to he upgraded in order to meet the tightened criterion for total nitrogen (10㎎/ℓ N as yearly average). ASTRASAND moving bed biofiltration, is introduced for post-denitrification. Pilot plant tests were executed in 1996 and it was found that in order to achieve good filter performance with the specific process conditions, an adequate process control system was required. This filter control ensured removal efficiencies of > 95% with influent concentrations up to 30 ㎎/l NO₃-N and strongly fluctuating influent flows. The full scale denitrification installation with a capacity of 3,600㎥/h, the first full scale installation of this type used for biological denitrification in Europe, was built in 1998 and started up in 1999. Since the start up, the filter performance is good and the nitrate removal efficiencies are higher than required.
MOA-2010-BLG-073L: AN M-DWARF WITH A SUBSTELLAR COMPANION AT THE PLANET/BROWN DWARF BOUNDARY
Street, R. A.,Choi, J.-Y.,Tsapras, Y.,Han, C.,Furusawa, K.,Hundertmark, M.,Gould, A.,Sumi, T.,Bond, I. A.,Wouters, D.,Zellem, R.,Udalski, A.,Snodgrass, C.,Horne, K.,Dominik, M.,Browne, P.,Kains, N.,Br IOP Publishing 2013 The Astrophysical journal Vol.763 No.1
<P>We present an analysis of the anomalous microlensing event, MOA-2010-BLG-073, announced by the Microlensing Observations in Astrophysics survey on 2010 March 18. This event was remarkable because the source was previously known to be photometrically variable. Analyzing the pre-event source light curve, we demonstrate that it is an irregular variable over timescales >200 days. Its dereddened color, (V - I)(S),(0), is 1.221 +/- 0.051 mag, and from our lens model we derive a source radius of 14.7 +/- 1.3 R-circle dot, suggesting that it is a red giant star. We initially explored a number of purely microlensing models for the event but found a residual gradient in the data taken prior to and after the event. This is likely to be due to the variability of the source rather than part of the lensing event, so we incorporated a slope parameter in our model in order to derive the true parameters of the lensing system. We find that the lensing system has a mass ratio of q = 0.0654 +/- 0.0006. The Einstein crossing time of the event, t(E) = 44.3 +/- 0.1 days, was sufficiently long that the light curve exhibited parallax effects. In addition, the source trajectory relative to the large caustic structure allowed the orbital motion of the lens system to be detected. Combining the parallax with the Einstein radius, we were able to derive the distance to the lens, D-L = 2.8 +/- 0.4 kpc, and the masses of the lensing objects. The primary of the lens is an M-dwarf with M-L,M-1 = 0.16 +/- 0.03 M-circle dot, while the companion has M-L,M-2 = 11.0 +/- 2.0 M-J, putting it in the boundary zone between planets and brown dwarfs.</P>
J. L. Ullmann,A. J. Couture,A. L. Keksis,D. J. Vieira,,J. M. ODonnell,J. M. Wouters,M. Jandel,R. C. Haight,R. S. Rundberg,T. A. Bredeweg,T. Kawano,C. Y. Wu,J. A. Becker,A. Chyzh,B. Baramsai,G. E. Mitc 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
A careful new measurement of the ^(238)U(n,γ) cross section from 10 eV to 100 keV has been made using the DANCE detector at LANSCE. DANCE is a 4π calorimetric scintillator array consisting of 160 BaF^2 crystals. Measurements were made on a 48 mg/cm^2 depleted uranium target. The cross sections are in general in good agreement with previous measurements. The gamma-ray emission spectra, as a function of gamma multiplicity, were also measured and compared to model calculations.
Anti-Inflammatory and Cicatrizing Activities of a Carbohydrate Fraction Isolated from Sugary Kefir
M.E.C. Moreira,M.H. Dos Santos,G.P.P. Zolini,A.T.B. Wouters,J.C.T. Carvalho,J.M. Schneedorf 한국식품영양과학회 2008 Journal of medicinal food Vol.11 No.2
Kefir is an association of microrganisms generally grown in milk, with known probiotic activities identifiedfrom its soured suspensions. Aqueous media are also able to grow kefir, but little is known about the probiotic properties ofits fermented products. This work aimed to evaluate some probiotic properties of a carbohydrate fraction isolated from sug-ary kefir (sugary kefir carbohydrate [SKC]). Anti-inflammatory activity of the isolated fraction of carbohydrate was testedboth in vitro(cellular respirometry and macrophage culture) and in vivo (50% effective dose, rat paw edema, vascular per-meability, and cicatrizing test). The results indicated no significant difference for oxygen uptake or macrophage culture be-tween control and test groups. Rat paw edema, however, showed a significant inhibitory activity by 30. 4% and 54 . 8%(P. .001) for carrageenan and dextran, respectively. In the cicatrizing test, animals treated with SKC cream also presentedless trauma after treatments as compared to the negative control group (P. .05). The overall data suggested the SKC as anatural product that could be used as a constituent of an anti-inflammatory compound.
Laura G.M. Janssen,Andrea D. van Dam,Mark J.W. Hanssen,Sander Kooijman,Kimberly J. Nahon,Hanneke Reinders,Ingrid M. Jazet,Wouter D. van Marken Lichtenbelt,Patrick C.N. Rensen,Natasha M. Appelman-Dijks 대한당뇨병학회 2020 Diabetes and Metabolism Journal Vol.44 No.2
Background: South Asians generally have an unfavourable metabolic phenotype compared with white Caucasians, including central obesity and insulin resistance. The Wnt protein family interacts with insulin signaling, and impaired Wnt signaling is associated with adiposity and type 2 diabetes mellitus. We aimed to investigate Wnt signaling in relation to insulin signaling in South Asians compared with white Caucasians. Methods: Ten Dutch South Asian men with prediabetes and overweight or obesity and 10 matched Dutch white Caucasians were included. Blood samples were assayed for the Wnt inhibitor sclerostin. Subcutaneous white adipose tissue (WAT) and skeletal muscle biopsies were assayed for Wnt and insulin signaling gene expression with quantitative reverse transcription polymerase chain reaction (Clinicaltrials.gov NCT02291458). Results: Plasma sclerostin was markedly higher in South Asians compared with white Caucasians (+65%, P<0.01). Additionally, expression of multiple Wnt signaling genes and key insulin signaling genes were lower in WAT in South Asians compared with white Caucasians. Moreover, in WAT in both ethnicities, Wnt signaling gene expression strongly positively correlated with insulin signaling gene expression. In skeletal muscle, WNT10B expression in South Asians was lower, but expression of other Wnt signaling and insulin signaling genes was comparable between ethnicities. Wnt and insulin signaling gene expression also positively correlated in skeletal muscle, albeit less pronounced. Conclusion: South Asian men with overweight or obesity and prediabetes have higher plasma sclerostin and lower Wnt signaling gene expression in WAT compared with white Caucasians. We interpret that reduced Wnt signaling could contribute to impaired insulin signaling in South Asians.