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Highly Efficient and Environmentally Friendly Preparation of 14-Aryl-14H-dibenzo[a,j]xanthenes Catalyzed by Tungsto-divanado-phosphoric Acid（图）
xanthene one-pot condensation aldehyde β-naphthol heteropolyacid Keggin solvent-free
2013/10/7
A rapid and efficient procedure for the preparation of various aryl-14H-dibenzo[a,j]xanthenes was reported. The method developed produced excellent yields via one-pot condensation of β-naphthol with v...
High Propylene Selectivity in Methanol-to-olefin Reaction over H-ZSM-5 Catalyst Treated with Phosphoric Acid
ZSM-5 Methanol-to-olefin Light olefin Phosphoric acid Propylene production MFI
2010/9/8
H-ZSM-5 zeolite was treated with phosphorus acid by impregnating H-ZSM-5 with aqueous solutions of phosphoric acid at various concentrations. H-ZSM-5 (P-HZSM-5) modified with phosphoric acid was used ...
Enamel Bonding of Self-etch and Phosphoric Acid-etch Orthodontic Adhesive Systems
Orthodontic brackets Shear bond strengths Self-etching primer
2009/9/14
This study was conducted to examine the shear bond strengths of orthodontic brackets to ground enamel with two self-etching adhesives (Beauty Ortho Bond and Transbond XT) and two phosphoric acid-etchi...
Enamel bonding of self-etching and phosphoric acid-etching orthodontic adhesives in simulated clinical conditions: Debonding force and enamel surface
Self-etching Phosphoric acid-etching Orthodontic adhesive
2009/9/11
This study aimed to evaluate the effectiveness of self-etching and phosphoric acid-etching orthodontic adhesives for enamel bonding in simulated clinical conditions. By using two self-etching (Transbo...
Growth and Grain Yield of Wheat in Relation to Differences in Soil Groups : III. Effects of the additional application of nitrogen or phosphoric-acid on the tiller growth and grain yield
Andosol Emergence rate Lodging Red Soil Soil type Spike number Survival rate Varietal difference
2009/8/5
This research was conducted with three varieties (Asakazekomugi, Norin 61 and Norin 64) in Red Soil, Thick High-humic Andosol and Light-colored Andosol. In Red Soil the survival and grain yield of til...
Effects of Nitrogen or Phosphoric-acid Application on the Wheat Noodle Quality in Different Soil Type
Andsol Ash Eating test Gray lowland soil Noodle Protein Red soil Viscoelasticity
2009/8/5
The quality of Asakazekomugi and Norin 61 cultivated in Grey lowland soil (GLS), Red soil (RS), Thick Hi-humic Andosol (THA) and Light-colored Andosol (LCA) were examined. Grain and flour crude protei...
Relation between Shoot Phosphorus Content and Tillering Rate in Wheat Varieties Varied in Adaptability to Low Available Phosphoric-acid Soil
Adaptability to low phosphorus content Andsol Nitrogen Phosphoric-acid Potassium Tiller Varietal difference Wheat
2009/8/4
Relation between phosphorus, nitrogen and potassium contents and the emergence rate of T1 (tiller in axils of the first leaf on main stem leaf) in wheat varieties having different adaptability to low ...
Starch Depolymerization with Diluted Phosphoric Acid and Application of the Hydrolysate in Astaxanthin Fermentation
cassava starch phosphorolysis acid hydrolysis
2009/2/19
An innovative alternative for cassava starch hydrolysis has been developed using diluted (about 0.1 %) phosphoric acid at 160 °C. This technology is advantageous for developing countries where enzyme ...
The effects of different phosphoric acid concentrations on surface enamel
Bonding Dental enamel Acid etching
2009/1/13
The purpose of this study was to evaluate the effects of different acid concentrations on the enamel surface morphology. The buccal surfaces of 25 extracted premolars from young patients were etch...
Phosphoric Acid Incorporated with Acidulated Phosphate Fluoride Gel Etchant Effects on Bracket Bonding
Etchant Acidulated phosphate fluoride gel Enamel surface Shear bond strength Adhesive remnant index Surface damage
2008/12/1
The aim of this study was to evaluate the effects of etching with phosphoric acid incorporated in an acidulated phosphate fluoride (APF) gel on the bonding of a bracket and the loss of sound enamel....
Acid Resistance of Erbium-doped Yttrium Aluminum Garnet Laser–Treated and Phosphoric Acid–Etched Enamels
Er YAG laser Phosphoric acid XRD ICP-AES pH-cycling EPMA
2008/11/24
Objective: To compare the effects of erbium-doped yttrium aluminum garnet (Er:YAG) laser ablation and of phosphoric acid etching on the in vitro acid resistance of bovine enamel.
Materials and Meth...
A Convenient and Efficient Synthesis of N-Acylsulfonamides in the Presence of Silica Phosphoric Acid under Heterogeneous and Solvent-Free Conditions
N-acylsulfonamide solvent-free silica phosphoric acid heterogeneous condition N-acylation
2010/4/8
Reaction of sulfonamides with carboxylic acid anhydrides and chlorides in the presence of silica phosphoric acid provided N-acyl sulfonamides in good to high yields. All reactions were performed under...
Spectrophotometric Determination of Uranium in Waste Water of Phosphoric Acid and Fertilizer Manufacturing Process
Phosphate rocks fertilizers uranium waste water TOPO
2010/6/29
In this study, waste water drains and produced phosphate fertilizers of conventional wet-process (hemihydrate) phosphoric acid and phosphate fertilizer plants were investigated to determine the averag...