Global uniform boundary Harnack principle with explicit decay rate and its application

Kim, P.,Song, R.,Vondracek, Z. North-Holland Pub. Co ; Elsevier Science Ltd 2014 Stochastic processes and their applications Vol.124 No.1

In this paper, we consider a large class of subordinate Brownian motions X via subordinators with Laplace exponents which are complete Bernstein functions satisfying some mild scaling conditions at zero and at infinity. We first discuss how such conditions govern the behavior of the subordinator and the corresponding subordinate Brownian motion for both large and small time and space. Then we establish a global uniform boundary Harnack principle in (unbounded) open sets for the subordinate Brownian motion. When the open set satisfies the interior and exterior ball conditions with radius R>0, we get a global uniform boundary Harnack principle with explicit decay rate. Our boundary Harnack principle is global in the sense that it holds for all R>0 and the comparison constant does not depend on R, and it is uniform in the sense that it holds for all balls with radii r@?R and the comparison constant depends neither on D nor on r. As an application, we give sharp two-sided estimates for the transition densities and Green functions of such subordinate Brownian motions in the half-space.

Assessment of the Antibacterial Behavior of Polyester Fabric Pre-treated with Atmospheric Discharge Plasma

Z. Špitalský,D. Rástočná Illová,O. Žigo,M. Mičušík,Z. Nógellová,M. Procházka,A. Kleinová,M. Kováčová,I. Novák 한국섬유공학회 2019 Fibers and polymers Vol.20 No.8

Polyester (PES) fabrics were pre-treated with atmospheric discharge plasma, and the surface properties, chemicalcomposition, and physical changes on the surfaces of the PES fabrics were investigated. The hydrophobic recovery of theplasma-modified surface during aging of the PES fabrics treated with plasma was also investigated. The glycerin contactangles were determined along with the chemical composition changes in the PES fabric using X-ray photoelectronspectroscopy, Fourier-transform infrared spectroscopy, and iodometric analyses. The physical changes in the topography androughness of the plasma-modified PES were studied using scanning electron microscopy and nanoindentation. The relationbetween the hydrophilicity and hydroperoxide concentration on the surface of the plasma-treated PES fabrics was analyzedand the antibacterial behavior of the fabrics with respect to selected two bacterial strains was monitored.

Preparation and characterization of polyvinylchloride based mixed matrix membrane filled with multi walled carbon nano tubes for carbon dioxide separation

Z. Rajabi,A.R. Moghadassi,S.M. Hosseini,M. Mohammadi 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.1

Poly vinyl chloride/multi wall carbon nano tubes (PVC/MWCNTs) mixed matrix membranes (MMMs)were prepared for gas separation. Raw and functionalized MWCNTs (R-MWCNTs and C-MWCNTs) were utilized in membranes preparation. The C-MWCNT shows better performance compared to raw ones. Membrane (CO2/CH4) selectivity was increased from 39.21 to 52.18 at 2 bar pressure by MWCNT loading ratio. The modified membranes with styrene butadiene rubber (SBR-MMMs) showed 63.52 and 34.70selectivity for (CO2/CH4) and (CO2/N2) at 2 bar pressure. Mechanical properties analysis exhibited tensile module improvement utilizing blending modification. Increase of feed pressure led to membrane gas permeability decreasing. But gas pair selectivity follows a nearly constant behavior for MMMs and increasing behavior for blend MMMs.

Embryo Survival on Day 25 of Generation in the Gilt is Not Affected by Exogenous Progesterone but is Correlated with Levels of Insulin-Like Growth Factor-I (IGF-I) mRNA in the Uterus

Yu, Z.,Gordon, J.R.,Kirkwood, R.N.,Thacker, P.A. Asian Australasian Association of Animal Productio 1999 Animal Bioscience Vol.12 No.6

The present study was undertaken to determine the effect of administration of exogenous progesterone early in gestation on uterine levels of IGF-I mRNA and on embryo survival at day 25 of gestation in the pig. Forty-one prepubertal gilts were induced into oestrus with PG600 and artificially inseminated at their subsequent naturally occurring oestrus. Gilts were then randomly assigned to one of three groups. Gilts in the two treatment groups were injected intramuscularly with 50 mg of progesterone either from day 2 to 14 (N=14) or from day 4 to 14 (N=15) after breeding while those in the control group (N=12) were given corn oil (0.5 ml) from day 2 to 14. Between days 25 and 28 of gestation, gilts were slaughtered and reproductive tracts were recovered. Endometrial tissue (1 g) was collected and analysed for IGF-I mRNA levels using a reverse transcription-polymerase chain reaction, Progesterone treatment, starting either on day 2 or 4 after breeding, neither significantly increased embryo survival rate by day 25 of gestation nor altered IGF-I mRNA levels in uterine tissue. However, across all samples, the IGF-I mRNA level in the uterus was highly correlated with embryo survival rate (r=0.8193, p<0.01), supporting the involvement of IGF-I in the regulation of porcine embryo development.

교정적 치아이동시 부갑상선홀몬이 긴장측 치주세포의 cAMP농도에 미치는 영향

Davidovitch, Z.,Lanese,R.R.,Schanfeld, J.L.,Zwilling, B.S.,이기수 대한치과교정학회 1986 대한치과교정학회지 Vol.16 No.1

Parathyroid hormone (PTH) is known to exert its effects on bone cells through the mediation of adenosine 3', 5'-monophosphate (cAMP). Orthodontic force have also been shown to alter the cAMP content of paradental cells, particularly the alveolar bone osteoblasts. The objective of this experiment was to determine whether a combined orthodontic treatment-PTH administration regimen would have an additive effect on cAMP content in paradental cells in sites of periodontal logament (PDL) tension. Seven groups of 4 one year old female cats each were treated for 1,3,6,12,24 h, 7 and 14 d by tipping one maxillary canine. PTH was administered twice daily, 30u/kg. Maxillary horizontal sections were stained immunohistochemically for cAMP and the degree of cellular staining intensity was determined microphotometrically as per cent light transmittance at 600nm. Alveolar bone osteoblasts, progenitor cells, PDL fibroblasts and cementoblasts in tenion sites were measured and the data were analyzed statistically by a mixed model analysis of variance. PTH administration increased the cAMP staining of nonorthodontically treated paradental ceels in comparison to ceels untreated by force or hormone. Cells in PDL tension sites of PTH-treated cats demonstrated significantly darker cAMP staining than cells in non-orthodonticaaly-treated sites. Osteoblasts demonstrated the greatest respons in terms of cAMP elevation, while in PDL fibroblasts orthodontic force did not increase cAMP levels above those measured in non-stretched hormonally-treated cells. These results demonstrate that PTH increases cAMP levels in paradental cells, particullarly in osteoblasts, and that tje effects of PTH and orthodontic forces on paradental target cells may approach additivity.

Fabrication and modification of cellulose acetate based mixed matrix membrane: Gas separation and physical properties

A.R. Moghadassi,Z. Rajabi,S.M. Hosseini,M. Mohammadi 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.3

[Cellulose acetate (CA)-blend-multi walled carbon nano tubes (MWCNTs)] mixed matrix membranes(MMMs), [CA/polyethylene glycol (PEG)/MWCNTs] and [CA/styrene butadiene rubber (SBR)/MWCNTs]blend MMMs were prepared by solution casting method for gas separation applications usingTetrahydrofuran (THF) as solvent. Both raw-MWCNTs (R-MWCNTs) and functionalized carboxylic-MWCNTs (C-MWCNTs) were used in membrane preparation. The MWCNTs loading ratio and pressureeffects on the gas separation performance of prepared membranes were investigated for pure He, N2, CH4and CO2 gases. Results indicated that utilizing C-MWCNT instead of R-MWCNTs in membrane fabricationhas better performance and (CO2/CH4) and (CO2/N2) selectivity reached to 21.81 and 13.74 from 13.41and 9.33 at 0.65 wt% of MWCNTs loading respectively. The effects of PEG and SBR on the gas transportperformance and mechanical properties were also investigated. The highest CO2/CH4 selectivity at 2 barpressure was reached to 53.98 for [CA/PEG/C-MWCNT] and 43.91 for [CA/SBR/C-MWCNT] blend MMMsat 0.5 wt% and 2 wt% MWCNTs loading ratio respectively. Moreover, increase of feed pressure led tomembrane gas permeability and gas pair selectivity improvement for almost all prepared membranes. The mechanical properties analysis exhibited tensile modules improvement with increasing MWCNTsloading ratio and utilizing polymer blending.

Temperature Dependent Current-Voltage and Capacitance-Voltage Characteristics of an Au/n-Type Si Schottky Barrier Diode Modified Using a PEDOT:PSS Interlayer

Khurelbaatar, Z.,Shim, K.-H.,Cho, J.,Hong, H.,Reddy, V.R.,Choi, C.-J. JAPAN INSTITUTE OF METALS 2015 MATERIALS TRANSACTIONS Vol.56 No.1

<P>The temperature dependence of the current-voltage (I-V) and capacitance-voltage (C-V) characteristics of an Au/n-type Si Schottky barrier diode (SBD) with a PEDOT:PSS interlayer was investigated. The SBD parameters, such as Schottky barrier height (Phi(B)), ideality factor (n), saturation current (I-o), doping concentration (N-D), and series resistance (R-s), were obtained as a function of temperature. The Richardson constant (A**) obtained from the In(I-o/T-2) versus 1000/T plot was much less than the theoretical value for n-Si. The mean Schottky barrier height ((Phi) over bar (bo)) and standard deviation (sigma(0)) calculated using the apparent Schottky barrier height (Phi(ap)) versus 1/2kT plot were 1.26 eV and 0.15 eV, respectively. From a fit of the modified Richardson plot of In(I-0/T-2) - (q sigma)(2)/2(kT)(2) versus 1000/T, the A** was extracted as 134 A/cm(2)K(2), which was close to the theoretical value of the n-Si. The interface state densities obtained from the Au/PEDOT:PSS/n-Si SBD decreased with increasing temperature. Furthermore, the conduction mechanism dominating the reverse-bias leakage current in Au/PEDOT:PSS/n-Si SBD was described and discussed.</P>

A nonNMDA antagonist, GYKI 52466 improves microscopic O₂balance in the cortex during focal cerebral ischemia

Chi, Oak Z.,Chang, Qiang,Wang, Guolin,Liu, Xia,Harvey R. Weiss 경희대학교 동서의학연구소 1999 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.1999 No.1

Oak Z.Chi,Qiang Chang, Guolin Wang*, Xia Liu, Harvey R. Weiss□.Deprtments of Anesthesai, Departments of Physiology and Biophysics, University of Medicne and Dentisrty of New Jersey,Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA and*Department of Anesthesia, Medical University, Tianjing, People's Republic of China. A non-NMDA antagonist, GYKI 52466 improves microscopic O² balance in the cortex during focal cerebral ischemia. Proceedings of International Symposium on East-West Medicine, Seoul. 172-182, 1999.-This study was performed to test whether GYKI 52466, a non-NMDA receptor antagonist, would improve microregional oxygen supply and consumption balance in the focal cerebral ischemic area. Rats were anesthetized with 1.4% isoflurance. For the GYKI Group (n=8), 19 min before middle cerebral artery (MCA) occlusion, a bolus of 5mg/kg of GYKI 52466 iv was administered and was followed by an infusion of 5mg/kg/hr. For the control Group(n=8), the same volume of the vehicle was administered. One hour after MCA occlusion, regional cerebral blood flow (rCBF) was measured using the 14C-iodoantipyrine autoradiographic technique. Microscopic arterial and venous oxygen saturations were determined using microspectrophotometry. In the cortex contralateral to MCA occlusion, the average rCBF and the average O² consumption were lower in the GYKI Group than in the Control Group (rCBF:GYKI 65.5±24.1, Control 97.7 33.4ml/100g/min;O² consumption: GYKI3.9±1.2, Control 6.2±2.5ml O²/100g/min) without a significant difference in the number of veins with SvO²<50%. In the ischemic cortex, the number of veins with SvO²<50% was significantly smaller in the GYKI Group (21 veins out of 63)than in the Control Group(45 out of 59)without a significant difference in the average rCBF(GYKI44.9±17.7, Control 29.7±10.4) or regional O² consumption between these two groups (GYKI 3.3±1.4,Control 27.7±1.2). Our data demonstrated that GYKI 52466 was effective in improving microscopic O² balance in the focal ischemic cortical area of the brain and it decreased O² consumption in the non-ischemic cortex. [Neurological Research 1999;21:299-304]

A tale of two GRB-SNe at a common redshift of z=0.54

Cano, Z.,Bersier, D.,Guidorzi, C.,Margutti, R.,Svensson, K. M.,Kobayashi, S.,Melandri, A.,Wiersema, K.,Pozanenko, A.,van der Horst, A. J. Blackwell Publishing Ltd 2011 Monthly notices of the Royal Astronomical Society Vol.413 No.1

THE EFFICIENCY OF UTILIZATION OF METABOLIZABLE ENERGY OF MILK-REPLACER-FED CALVES AT WEANING PERIOD

Sekine, J.,Morita, Z.,Oura, R.,Morooka, T.,Asahida, Y. Asian Australasian Association of Animal Productio 1988 Animal Bioscience Vol.1 No.4

A total of 22 energy balance trials were done for calves fed a liquid milk replacer, calf starter and second cut mixed hay during weaning period. Milk replacer supplied 50% of the total dietary energy, calf starter 42% and hay 8% Live weight of calves averaged 64.6 ($S.D.{\pm}7.8$) kg and daily gain 0.54 (${\pm}0.22$) kg. The metabolizability of gross energy averaged 0.751. A regression was calculated relating energy retention (ER, $kJ/kg^{0.75}$) to the intake of metabolizable energy (IME, $kJ/kg^{0.75}$): $$ER=0.69({\pm}0.09)IME-395,\;r=0.888,\;P<0.01,\;S.E.{\pm}7.1$$. Metabolizable energy for maintenance (MEm) was calculated to be $572kJ/kg^{0.75}$ when ER = 0. The amount of IME over MEm for an individual animal (MEg, $kJ/kg^{0.75}$) was regressed on average daily gain (ADG, kg) by the method of regression through the origin: $$MEg=364({\pm}55)ADG,\;r=0.634,\;P<0.01,\;S.E.{\pm}12$$. The amount of ME required for maintenance and growth was estimated to be $936kJ/kg^{0.75}$.