Effect of cyclic water injection on the wettability of coal with different SiO2 nanofluid treatment time

In this paper, we develop a boronizing process simulation model based on fuzzy neural network (FNN) approach for estimating the thickness of the FeB and Fe2B layers. The model represents a synthesis of two artificial intelligence techniques; the fuzzy logic and the neural network. Characteristics of the fuzzy neural network approach for the modelling of boronizing process are presented in this study. In order to validate the results of our calculation model, we have used the learning base of experimental data of the powder-pack boronizing of Fe-15Cr alloy in the temperature range from 800 to 1050 °C and for a treatment time ranging from 0.5 to 12 h. The obtained results show that it is possible to estimate the influence of different process parameters. Comparing the results obtained by the artificial neural network to experimental data, the average error generated from the fuzzy neural network was 3% for the FeB layer and 3.5% for the Fe2B layer. The results obtained from the fuzzy neural network approach are in agreement with the experimental data. Finally, the utilization of fuzzy neural network approach is well adapted for the boronizing kinetics of Fe-15Cr alloy.

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Effect of isothermal heat treatment time on structural transformation and crystallization of B2O3-PbO glass

Matériaux & Techniques ◽

10.1051/mattech:2008030 ◽

2008 ◽

Vol 96 (4-5) ◽

pp. 181-187 ◽

Cited By ~ 1

Author(s):

D. Aboutaleb ◽

A. Iratni ◽

B. Safi

Keyword(s):

Heat Treatment ◽

Structural Transformation ◽

Treatment Time ◽

Heat Treatment Time ◽

Isothermal Heat Treatment

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Perturbation of Platelet Adhesion to Endothelial Cells by Plasminogen Activation In Vitro

Thrombosis and Haemostasis ◽

10.1055/s-0038-1657655 ◽

1997 ◽

Vol 78 (02) ◽

pp. 934-938 ◽

Cited By ~ 5

Author(s):

Hsiun-ing Chen ◽

Yueh-I Wu ◽

Yu-Lun Hsieh ◽

Guey-Yueh Shi ◽

Meei-Jyh Jiang ◽

...

Keyword(s):

Extracellular Matrix ◽

Endothelial Cells ◽

Platelet Adhesion ◽

Treatment Time ◽

Shape Change ◽

Umbilical Vein ◽

Tissue Type ◽

Apical Surface ◽

Plasminogen Activation

SummaryTo investigate whether the endothelium-platelet interactions may be altered by plasminogen activation, cultured human umbilical vein endothelial cells (ECs) were treated with tissue-type plasminogen activator (t-PA) in the presence of plasminogen, and platelet adhesion to ECs was subsequently measured by using a tapered flow chamber. Our results demonstrated that platelets adhered more readily to t-PA treated EC monolayer than to the control monolayer at all shear stress levels tested. This phenomenon was treatment time-dependent and dose-dependent, and it could be blocked by adding plasmin inhibitors, such as e-amino caproic acid and aprotinin. Adherent platelets on t-PA treated EC monolayer underwent more severe shape change than those on the control monolayer. While the extracellular matrix directly treated with t-PA attracted less platelets than the control matrix did, platelet adhesion to the matrix that was produced by t-PA-treated ECs was unaltered. These data suggest that t-PA treatment on ECs compromised antiplatelet-adhesion capability on their apical surface without altering the reactivity of their extracellular matrix towards platelets.

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Study on the Chemical Modification Process of Jute Fiber

TAPPI Journal ◽

10.32964/tj9.2.23 ◽

2010 ◽

Vol 9 (2) ◽

pp. 23-29 ◽

Cited By ~ 1

Author(s):

Wei-ming Wang ◽

Zai-sheng Cai ◽

Jian-yong Yu

Keyword(s):

Sodium Hydroxide ◽

Sodium Silicate ◽

Treatment Time ◽

Jute Fiber ◽

Process Conditions ◽

Silicate Concentration ◽

Sodium Hydroxide Concentration ◽

Liquor Ratio ◽

Degumming Process ◽

Selection Of

Degumming of pre-chlorite treated jute fiber was studied in this paper. The effects of sodium hydroxide concentration, treatment time, temperature, sodium silicate concentration, fiber-to-liquor ratio, penetrating agent TF-107B concentration, and degumming agent TF-125A concentration were the process conditions examined. With respect to gum decomposition, fineness and mechanical properties, sodium hydroxide concentration, sodium silicate concentration, and treatment time were found to be the most important parameters. An orthogonal L9(34) experiment designed to optimize the conditions for degumming resulted in the selection of the following procedure: sodium hydroxide of 12g/L, sodium silicate of 3g/L, TF-107B of 2g/L, TF-125A of 2g/L, treatment time of 105 min, temperature of 100°C and fiber to liquor ratio of 1:20. The effect of the above degumming process on the removal of impurities was also examined and the results showed that degumming was an effective method for removing impurities, especially hemicellulose.

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Prognostic value of absolute monocyte count in chronic lymphocytic leukaemia

Orvosi Hetilap ◽

10.1556/oh.2015.30126 ◽

2015 ◽

Vol 156 (15) ◽

pp. 592-597

Author(s):

László Szerafin ◽

János Jakó ◽

Ferenc Riskó

Keyword(s):

Chronic Lymphocytic Leukaemia ◽

Prognostic Value ◽

Lymphocytic Leukaemia ◽

Treatment Time ◽

Monocyte Count ◽

Time To Treatment ◽

Causes Of Mortality ◽

The Absolute ◽

The Impact ◽

Overal Survival

Introduction: The low peripheral absolute lymphocyte and high monocyte count have been reported to correlate with poor clinical outcome in various lymphomas and other cancers. However, a few data known about the prognostic value of absolute monocyte count in chronic lymphocytic leukaemia. Aim: The aim of the authors was to investigate the impact of absolute monocyte count measured at the time of diagnosis in patients with chronic lymphocytic leukaemia on the time to treatment and overal survival. Method: Between January 1, 2005 and December 31, 2012, 223 patients with newly-diagnosed chronic lymphocytic leukaemia were included. The rate of patients needing treatment, time to treatment, overal survival and causes of mortality based on Rai stages, CD38, ZAP-70 positivity and absolute monocyte count were analyzed. Results: Therapy was necessary in 21.1%, 57.4%, 88.9%, 88.9% and 100% of patients in Rai stage 0, I, II, III an IV, respectively; in 61.9% and 60.8% of patients exhibiting CD38 and ZAP-70 positivity, respectively; and in 76.9%, 21.2% and 66.2% of patients if the absolute monocyte count was <0.25 G/l, between 0.25–0.75 G/l and >0.75 G/l, respectively. The median time to treatment and the median overal survival were 19.5, 65, and 35.5 months; and 41.5, 65, and 49.5 months according to the three groups of monocyte counts. The relative risk of beginning the therapy was 1.62 (p<0.01) in patients with absolute monocyte count <0.25 G/l or >0.75 G/l, as compared to those with 0.25–0.75 G/l, and the risk of overal survival was 2.41 (p<0.01) in patients with absolute monocyte count lower than 0.25 G/l as compared to those with higher than 0.25 G/l. The relative risks remained significant in Rai 0 patients, too. The leading causes of mortality were infections (41.7%) and the chronic lymphocytic leukaemia (58.3%) in patients with low monocyte count, while tumours (25.9–35.3%) and other events (48.1 and11.8%) occurred in patients with medium or high monocyte counts. Conclusions: Patients with low and high monocyte counts had a shorter time to treatment compared to patients who belonged to the intermediate monocyte count group. The low absolute monocyte count was associated with increased mortality caused by infectious complications and chronic lymphocytic leukaemia. The absolute monocyte count may give additional prognostic information in Rai stage 0, too. Orv. Hetil., 2015, 156(15), 592–597.

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Synthesis of HTCMgFe for the degradation of indigo carmine through heterogeneous photo-Fenton treatment

MRS Advances ◽

10.1557/adv.2020.421 ◽

2020 ◽

Vol 5 (62) ◽

pp. 3273-3282

Author(s):

I. Cosme-Torres ◽

M.G. Macedo-Miranda ◽

S.M. Martinez-Gallegos ◽

J.C. González-Juárez ◽

G. Roa-Morales ◽

...

Keyword(s):

Electron Microscopy ◽

Treatment Time ◽

Uv Light ◽

Indigo Carmine ◽

Oh Radicals ◽

Absorption Bands ◽

Chromophore Group ◽

X Ray ◽

Catalytic Sites ◽

Scanning Electron

AbstractThe heterogeneous catalyst HTCMgFe was used in the degradation of the IC, through the heterogeneous photo-fenton treatment, this material in combination with H2O2 and UV light degraded the dye in 30 min at pH 3. As the amount of HTCMgFe increases the degradation it was accelerated because there are more active catalytic sites of Fe2+ on the surface of the material, which generates a greater amount of •OH radicals. The HTCMgFe was characterized by infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray energy dispersive elemental analysis (EDS). The UV-vis spectrum shows that the absorption bands belonging to the chromophore group of the IC disappear as the treatment time passes, indicating the degradation of the dye.

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