Luo Hua-ping

Thin‐Layer Drying Characteristics and Modeling of Chinese Jujubes

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Mathematical Problems in Engineering (2012)

Xiaokang Yi Wenfu Wu Yaqiu Zhang Junxing Li Luo Hua-ping

A mathematical modeling of thin‐layer drying of jujubes in a convective dryer was established under controlled conditions of temperature and velocity. The drying process took place both in the accelerating rate and falling rate period. We observed that higher temperature reduced the drying time, indicating higher drying rates of jujubes. The experimental drying data of jujubes were used to fit ten different thin‐layer models, then drying rate constants and coefficients of models tested were determined by nonlinear regression analysis using the Statistical Computer Program. As for all the drying models, the Weibull distribution model was superior and best predicted the experimental values. Therefore, this model can be used to facilitate dryer design and promote efficient dryer operation by simulation and optimization of the drying processes. The volumetric shrinkable coefficient of jujubes decreased as the drying air temperature increased.

Thin layers

10.1155/2012/386214

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Citations (44)

Effects of Acid & Ethanol Concentration on the Culture of High-temperature Monascus

Liquor-making Science & Technology (2008)

The effects of acid and ethanol concentration on the culture of high-temperature monascus were investigated. The results showed that acid and ethanol at adequate concentration could effectively accelerate the growth of monascus and improve the pigment-producing and ester-producing capability of monascus. In this paper, the proper acid and ethanol concentration suitable for monascus culture was introduced.

Study on Photocatalytic Degradation Process of Methyl Orange by WO_3-ZnO Composite Film

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According to the environmental problem caused by dye-waste water,methyl orange was photocatalytically degradated by WO3-ZnO composite films.The effects of roasting temperature,roasting time,layers of the composite film,initial concentration of methyl orange,pH and illumination time on the degradation rate were studied.The results indicated that the degradation rate of methyl orange reached to 99.8% when using 3-layers composite film annealed at 300 ℃ for 2 h as catalyst,and the initial concentration of methyl orange was 10 mg / L,pH 11.15,and illumination time was 60 min.

Methyl orange

Roasting

Degradation

Study on Photocatalytic Degradation of Methyl Orange by Titanic Acid Nanotubes

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Using titanic acid nanotubes as catalyst,methyl orange was degraded under UV radiation.The results indicated that the initial concentration of methyl orange,amount of catalyst and illuminative time had some effects on the degradation rate,while pH of the solution hadn’t influence on the degradation of methyl orange.The optimal conditions was 30 mg catalyst that added into 35 mL,pH 7.0,10 mg/L methyl orange solution,UV radiation for 60 minutes,the degradation rate of methyl orange reached 99.6%.

Methyl orange

Degradation

Orange juice

Analysis on the Influencing Factors of Photocatalytic Degradation of Methyl Orange by SnO_2/Sodium Titanate Nanotubes

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Methyl orange was photocatalytically degradated using SnO2/sodium titanate nanotubes.The effects of initial concentration of methyl orange,pH,light source,catalyst loading,cycle number and illuminative time on the degradation rate were studied.The results indicated that when the dosage of catalyst was 0.03 g in 50 mL of the 5 mg/L methyl orange with pH 5.15,the degradation rate of methyl orange reached 96.4% after UV radiation for 80 minutes.

Methyl orange

Degradation

Introduction Effectiveness of Ziziphus jujube Mill in Xinjiang and Its Potential Crisis and Control Measures

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Northern Horticulture (2013)

Ziziphus jujube Mill has a high nutritional value and medicinal value,known as 'woody food,tonic' reputation,and it is a healthy fruit including three major functions drugs,food and tonic.The introduced area,yield and economic benefit of Ziziphus jujube Mill in Xinjiang were described,meanwhile its potential crisis in the perspective of theory introduced were discussed.In addition,the corresponding prevention and control measures were put forward,in order to provide the theory basis and the reasonable suggestion for healthy rapid development of Ziziphus jujube Mill in Xinjiang.

Ziziphus jujuba

Optimization of Photocatalytic Degradation Condition of Formaldehyde by TiO_2 Nanoparticals

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In view of the formaldehyde pollution,anatase TiO2 nanoparticals were used as photocatalyst to degradate formaldehyde.The effects of illuminative time,dilution ratio of formaldehyde and the concentration of H2O2 on the degradation rate of formaldehyde were studied.The results indicated that the relationship between the degradation rate of formaldehyde and the illuminative time was linear.When the dilution ratio of formaldehyde was 2 000 and H2O2 was 330 mg / L,the degradation rate of formaldehyde was the highest.

Degradation

Dilution

糖尿病腎症早期血液ルーチン検査の診断価値観察【JST・京大機械翻訳】

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Zhongguo Shequ Yishi (2019)