scholarly journals A Nonlinear Integrated Modeling Method of Extended Kalman Filter Based on Adaboost Algorithm

2021 ◽  
Vol 9 ◽  
Author(s):  
Feng-Bo Zhou ◽  
Chang-Geng Li ◽  
Hong-Qiu Zhu
Keyword(s):  
Kalman Filter ◽  
Extended Kalman Filter ◽  
Zinc Sulfate ◽  
Sulfate Solution ◽  
Modeling Method ◽  
Integrated Modeling ◽  
Nickel Ion ◽  
Zinc Sulfate Solution ◽  
Adaboost Algorithm ◽  
Spectral Signal

Abstract In the zinc hydrometallurgical purification process, the concentration ratio of zinc ion to trace nickel ion is as high as 105, so that the nickel spectral signal is completely covered by high concentration zinc signal, resulting in low sensitivity and nonlinear characteristics of nickel spectral signal. Aiming at the problem that it is difficult to detect nickel in zinc sulfate solution, this paper proposes a nonlinear integrated modeling method of extended Kalman filter based on Adaboost algorithm. First, a non-linear nickel model is established based on nickel standard solution. Second, an extended Kalman filter wavelength optimization method based on correlation coefficient is proposed to select wavelength variables with high signal sensitivity, large amount of information and strong nonlinear correlation. Finally, a nonlinear integrated modeling method based on Adaboost algorithm is proposed, which uses extended Kalman filter as a basic submodel, and realizes the stable detection of trace nickel through the weighted combination of multiple basic models. The results show that the average relative error of this method for detecting nickel is 4.56%, which achieves accurate detection of trace nickel in zinc sulfate solution.

scholarly journals The Clinical Effectiveness of Intralesional Injection of 2% Zinc Sulfate Solution in the Treatment of Common Warts

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Essam-elden Mohamed Mohamed ◽  
Khaled Mohamed Tawfik ◽  
Asmaa Moneir Mahmoud
Keyword(s):  
Zinc Sulfate ◽  
Randomized Study ◽  
Clinical Effectiveness ◽  
Sulfate Solution ◽  
Late Complications ◽  
Intralesional Injection ◽  
Significant Relation ◽  
Zinc Sulfate Solution ◽  
Common Warts ◽  
Postinflammatory Hyperpigmentation

Objective.To investigate the clinical efficacy and safety of intralesional injection of 2% zinc sulfate solution in the treatment of common warts.Patients and Methods.One hundred and twenty patients (78 females and 42 males) aged 5–55 years with 225 common warts participated in this prospective monocentric randomized study. All lesions were treated with intralesional injection of 2% zinc sulfate.Results.From 225 warts injected, 135 warts (60%) cured from the first session, 51 warts (22.67%) cured from the second session, and 12 warts (5.33%) cured from the third session. There is no significant relation between improvement and patient’s ages, duration, or number of warts (P<0.05). All patients complained from pain during injection, and all treated lesions showed redness, tenderness, and swelling in the first 3 days after injection. Late complications were postinflammatory hyperpigmentation in 90 patients (75%), scaring in 9 patients (7.5%), and ulceration in 3 patients (2.5%). Recurrence occurred in 3 lesions (1.33%).Conclusion.The clinical data indicate that intralesional injection of 2% zinc sulfate is an effective maneuver in the treatment of common warts; however, its associated complications limit its use.

Electro-Deposition for Foamed Zinc Material from Zinc Sulfate Solution

2007 ◽  
pp. 1669-1672
Author(s):  
Qing Hua Tian ◽  
Xue Yi Guo ◽  
Ping Xue ◽  
Yu Song ◽  
Lian Duan
Keyword(s):  
Zinc Sulfate ◽  
Sulfate Solution ◽  
Electro Deposition ◽  
Zinc Sulfate Solution

Topical 10% Zinc Sulfate Solution for Treatment of Melasma

2008 ◽  
Vol 34 (10) ◽  
pp. 1346-1349
Author(s):  
KHALIFA E. SHARQUIE ◽  
SABEEH A. AL-MASHHADANI ◽  
HUSSAM A. SALMAN
Keyword(s):  
Zinc Sulfate ◽  
Sulfate Solution ◽  
Zinc Sulfate Solution

scholarly journals Subacute effects of cadmium and zinc ions on protein synthesis and cell death in mouse liver

Medicina ◽  
2008 ◽  
Vol 44 (2) ◽  
pp. 131 ◽  
Author(s):  
Inga Stanevièienë ◽  
Ilona Sadauskienë ◽  
Vaiva Lesauskaitë ◽  
Laima Ivanovienë ◽  
Artûras Kaðauskas ◽  
...  
Keyword(s):  
Cell Death ◽  
Body Weight ◽  
Protein Synthesis ◽  
Zinc Sulfate ◽  
Mouse Liver ◽  
Sulfate Solution ◽  
Trna Synthetase ◽  
Zinc Ions ◽  
Zinc Sulfate Solution ◽  
Acceptor Activity

Objective. The aim of this study was to evaluate in vivo the effects of cadmium and zinc ions on translational machinery and death of mouse liver cells. Material and methods. Outbred mice received intraperitoneal injections of cadmium chloride solution (1.4 μmoles cadmium per 1 kg of body weight) and/or zinc sulfate solution (4.8 μmoles zinc per kg of body weight) three times per week for six weeks. Analogical volume of saline solution was injected to the control mice. Protein synthesis was evaluated by incorporation of [14C]-labeled leucine into peptides and proteins. Total tRNAs were isolated using deproteinized extract of liver tissue. Postmitochondrial supernatant was as a source of leucyl-tRNA synthetase. Activities of tRNALeu and leucyl-tRNA synthetase were measured by an aminoacylation reaction using [14C]-labeled leucine. Liver cell apoptosis was detected by TUNEL assay using in situ cell death detection kit. Results. A decrease in incorporation of [14C]-labeled leucine into proteins was detected in liver, kidney, and heart as well as diminution of tRNALeu acceptor activity in cadmium-exposed liver. Cadmium caused activation of the leucyl-tRNA synthetase and induced liver cell apoptosis. Pretreatment of mice with zinc sulfate solution favored to protection of protein synthesis and acceptor activity of tRNALeu against cadmium-induced inhibition. Under co-exposure of mouse liver to cadmium and zinc, activity of the leucyl-tRNA synthetase was at the level of control. Zinc did not influence TUNEL-positive cell number in cadmium-exposed mouse liver. Conclusions. Under subacute intoxication of mice by cadmium, zinc ions protect the translation machinery against inhibition, but do not decrease the number of apoptotic cells in the liver.

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