36 results
Search Results
Now showing 1 - 10 of 36
Item Metadata only Effect of manganese and iron doping on the properties of strontium bismuth tantalate ceramics prepared by auto-combustion of citrate-nitrate gel process(Mahidol University. Mahidol University Library and Knowledge Center, 2005) Temporn Sookawee; Laddawan PdungsapPublication Metadata only Optimization of the hole concentration in the two-layer bismuth superconductors(1991-06-15) I. M. Tang; S. Leelaprute; P. Setsuwan; Mahidol UniversityThe dependence of Tcon the hole concentration, nH, in the two-layer bismuth superconductors is studied. Variation of the oxygen content in the ceramics is accomplished mainly by quenching the specimens from different points in the temperature region... (for Tcversus nH) form the positive slope portion of an inverted parabolic function dependence of Tcon nHfor the "2212" bismuth superconductors. © 1991.Item Metadata only Fourteen-day vonoprazan-based bismuth quadruple therapy for H. pylori eradication in an area with high clarithromycin and levofloxacin resistance: a prospective randomized study (VQ-HP trial)(2024-12-01) Tungtrongchitr N.; Bongkotvirawan P.; Ratana-Amornpin S.; Siramolpiwat S.; Eiamsitrakoon T.; Gamnarai P.; Wongcha-um A.; Yamaoka Y.; Pawa K.K.; Vilaichone R.K.; Tungtrongchitr N.; Mahidol UniversityPotassium-competitive acid blockers (P-CABs) provide potent acid inhibition, yet studies on P-CAB-based quadruple therapy for H. pylori eradication are limited. We theorized that integrating bismuth subsalicylate into a quadruple therapy regimen... could enhance eradication rates. However, data on the efficacy of vonoprazan bismuth quadruple therapy are notably scarce. Therefore, the aim of this study was to evaluate the efficacy of vonoprazan-based bismuth quadruple therapy in areas with highPublication Metadata only Lanthanide substitution into low hole concentration bismuth superconductors(1991-04-15) I. M. Tang; S. Leelaprute; C. Soankwan; N. Chiengpratoom; Mahidol UniversityThe effects of lanthanide rare earth (RE) substitution into two layer bismuth superconductors are studied. Quenching the RE substituted superconductors, Bi1.55Pb0.45Sr2RE0.2Ca0.8Cu2Oz, is used to lower the hole concentration to the levels wherePublication Metadata only Lithium/strontium exchange in '2212' bismuth superconductors(1991-10-01) C. Engkagul; K. Eaiprasertsak; J. Laksanaboonsong; K. Treechairusme; N. Chaichit; S. Leelaprute; N. Chiengpratoom; I. M. Tang; Thammasat University; Silpakorn University; Mahidol UniversityThe effect of the replacement of strontium ions by lithium ions on the Tcs of liquid-nitrogen-quenched "2212" bismuth superconductors processed at 700°C is studied. As is the case for the exchange of cooper ions by lithium ions, the Li/Sr exchangePublication Metadata only Effect of different quenching methods on Pb substituted "2212" bismuth superconductor(1989-12-25) K. Eaiprasertsak; I. M. Tang; W. Tontiwattana; Mahidol University; Chulalongkorn UniversityThe effects of quenching the lead doped bismuth superconductor Bi 3.3 Pb 0.7 Sr 4 Ca 2 Cu 4 O 16 from 845 K in liquid nitrogen and in flowing argon gas atmosphere are studied. For both types of quenching, the resulting superconductors are multiphaseItem Metadata only Glycerol photocatalytic oxidation to higher value-added compounds via bismuth oxyhalide photocatalysts(2023-12-01) Limpachanangkul P.; Nimmmanterdwong P.; Liu L.; Hunsom M.; Pruksathorn K.; Piumsomboon P.; Chalermsinsuwan B.; Mahidol UniversityBismuth oxyhalides (BiOX) including BiOCl, BiOBr, and BiOI, were well synthesized using solvothermal technique and then used in the aqueous phase photooxidation of glycerol as a catalyst. The as-synthesized BiOBr could achieve the highest glycerolItem Metadata only Statistical information review of CO2 photocatalytic reduction via bismuth-based photocatalysts using artificial neural network(2024-12-01) Limpachanangkul P.; Liu L.; Nimmmanterdwong P.; Pruksathorn K.; Piumsomboon P.; Chalermsinsuwan B.; Limpachanangkul P.; Mahidol UniversityAn artificial neural network (ANN) was applied to construct the relationship between the CO2 photocatalyst variables. A total of 147 data points from 38 research publications related to photocatalytic CO2 reduction via bismuth-based photocatalystsPublication Metadata only Efficacy of tripotassium-dicitrato-bismuthate (TDB) and cimetidine in peptic ulcer disease, a control study of 40 gastric ulcer and 80 duodenal ulcer(1987-01-01) O. Chearanai; U. Kachintorn; U. Plengvanit; Mahidol UniversityItem Metadata only Adjunctive use of Saccharomyces boulardii versus bismuth subsalicylate in the management of non-Clostridioides difficile nosocomial diarrhea in severely ill patients: a three-arm randomized controlled trial(2026-01-30) Preechakawin N.; Suttikulsombat M.; Kiratisin P.; Weeranawin P.; Maneerattanaporn M.; Preechakawin N.; Mahidol University) by restoring microbiota and bismuth subsalicylate (BSS), a traditional medication with anti-microbial and anti-secretory effects are interested to be used. We then conducted randomized controlled trial (RCT) to evaluate the use of Saccharomyces boulardii