Selenium concentration in patients with heart rhythm disturbances and the part ofselenium in treatment of this pathology were studied.50 patients(age 16-67)were studied.The check group consisted of 23 healthypatients(...Selenium concentration in patients with heart rhythm disturbances and the part ofselenium in treatment of this pathology were studied.50 patients(age 16-67)were studied.The check group consisted of 23 healthypatients(age 21-44).Selenium concentration in patients’ blood was measured.Thencorrection of selenium concentration was done.With the daily dose of 450mkg,selenium concentration in blood was managed to increase up to 60-70%.In compaison with the check group selenium decrease up to 43 and 78.4mkg(standard 90-120mkg/l)was discovered.The most marked decrease of seleniumconcentration was noticed in patients with idiopathic transverse blocks 34.4mkg/land paroxysmal supraventricular tachycardias(SVT)not caused by ischemic heartdisease(ICHD)-39.5mkg/l.Thee patients with ICHD(tachy-and bradycardia)hadthe selenium decrease up to 55.8mkg/l.After selenium therapy during 2 weeks thefollowing results were obtained:in cases of SVT the beneficial result was reached in75%;in cases of the tachycardias caused by ICHD-25%.In cases of idiopathictraverse blocks the heart conduction restoring after selenium recovery was noticedin half of patients.In case this pathology is caused by ICHD no beneficial effect wasnoticed.展开更多
Mathematical modeling of heat exchange in air in pipes with turbulators with d/D=0.95÷0.90 and t/D=0.25÷1.00,as well as in rough pipes,with large Reynolds numbers(Re=106).The solution of the heat exchange pr...Mathematical modeling of heat exchange in air in pipes with turbulators with d/D=0.95÷0.90 and t/D=0.25÷1.00,as well as in rough pipes,with large Reynolds numbers(Re=106).The solution of the heat exchange problem for semicircular cross-section flow turbulizers based on multi-block computing technologies based on the factorized Reynolds equations(closed using the Menter shear stress transfer model)and the energy equation(on multi-scale intersecting structured grids)was considered.This method was previously successfully applied and verified by experiment in[1-4]for lower Reynolds numbers.The article continues the computational studies initiated in[1-4,25-27].展开更多
文摘Selenium concentration in patients with heart rhythm disturbances and the part ofselenium in treatment of this pathology were studied.50 patients(age 16-67)were studied.The check group consisted of 23 healthypatients(age 21-44).Selenium concentration in patients’ blood was measured.Thencorrection of selenium concentration was done.With the daily dose of 450mkg,selenium concentration in blood was managed to increase up to 60-70%.In compaison with the check group selenium decrease up to 43 and 78.4mkg(standard 90-120mkg/l)was discovered.The most marked decrease of seleniumconcentration was noticed in patients with idiopathic transverse blocks 34.4mkg/land paroxysmal supraventricular tachycardias(SVT)not caused by ischemic heartdisease(ICHD)-39.5mkg/l.Thee patients with ICHD(tachy-and bradycardia)hadthe selenium decrease up to 55.8mkg/l.After selenium therapy during 2 weeks thefollowing results were obtained:in cases of SVT the beneficial result was reached in75%;in cases of the tachycardias caused by ICHD-25%.In cases of idiopathictraverse blocks the heart conduction restoring after selenium recovery was noticedin half of patients.In case this pathology is caused by ICHD no beneficial effect wasnoticed.
文摘Mathematical modeling of heat exchange in air in pipes with turbulators with d/D=0.95÷0.90 and t/D=0.25÷1.00,as well as in rough pipes,with large Reynolds numbers(Re=106).The solution of the heat exchange problem for semicircular cross-section flow turbulizers based on multi-block computing technologies based on the factorized Reynolds equations(closed using the Menter shear stress transfer model)and the energy equation(on multi-scale intersecting structured grids)was considered.This method was previously successfully applied and verified by experiment in[1-4]for lower Reynolds numbers.The article continues the computational studies initiated in[1-4,25-27].
