Study of inhibitory effect of ultrasound on algae and its influencing factors

2013 ◽  
pp. 1069-1072
Author(s):  
Peng Sun ◽  
Yong-Yue Yang
Keyword(s):  
Influencing Factors ◽  
Inhibitory Effect

scholarly journals Effects of straw’s comprehensive utilization-technology on agricultural carbon emission in Jiangsu Province

2021 ◽  
Vol 267 ◽  
pp. 01014
Author(s):  
Xue Qin ◽  
Jun Yan ◽  
G.Y. Zhu
Keyword(s):  
Influencing Factors ◽  
Carbon Emissions ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Explanatory Variable ◽  
Inhibitory Effect ◽  
Jiangsu Province ◽  
Stirpat Model ◽  
Comprehensive Utilization ◽  
The Core

Straw resources are abundant in Jiangsu province, the utilization and burning of straw is an important problem in agriculture carbon emission reduction. In order to analyze the effect of straw’s comprehensive utilization technology on agricultural carbon emission, the STIRPAT model is introduced, which takes straw utilization technology as the core explanatory variable while other influencing factors as control variables, and the ridge regression is adopted to conduct an empirical analysis on the influencing factors of agricultural carbon emission in Jiangsu province from 2008 to 2018. The results demonstrate that for every 1% increasing of straw’s comprehensive utilization technology, agriculture carbon emission will be reduced by 0.17%; the labor force is the biggest driver of agriculture carbon emissions; agriculture economic development, energy consumption takes a certain inhibitory effect on agriculture carbon emissions, but not very great.

scholarly journals Analysis of Factors Influencing the Lake Area on the Tibetan Plateau Using an Eigenvector Spatial Filtering Based Spatially Varying Coefficient Model

2021 ◽  
Vol 13 (24) ◽  
pp. 5146
Author(s):  
Zhexin Xiong ◽  
Yumin Chen ◽  
Huangyuan Tan ◽  
Qishan Cheng ◽  
Annan Zhou
Keyword(s):  
Influencing Factors ◽  
Water Cycle ◽  
Spatial Filtering ◽  
Inhibitory Effect ◽  
Tibet Plateau ◽  
The Tibetan Plateau ◽  
Lake Area ◽  
Varying Coefficient ◽  
Eigenvector Spatial Filtering ◽  
Spatially Varying

Lakes on the Tibet Plateau (TP) have a significant impact on the water cycle and water balance, and it is important to monitor changes in lake area and identify the influencing factors. Existing research has failed to quantitatively identify the changes and influencing factors of lakes in different regions of the TP. Thus, an eigenvector spatial filtering based spatially varying coefficient (ESF-SVC) model was used to analyze the relationship between lake area and climatic and terrain factors in the inner watershed of the TP from 2000 to 2015. A comparison with ordinary regression and spatial models showed that the ESF-SVC model eliminates spatial autocorrelation and has the best model fit and complexity. The experiments demonstrated that precipitation, snow melt, and permafrost moisture release, as well as the area of vegetation and elevation difference in the watershed, can significantly promote the expansion of lakes, while evapotranspiration and days of mean daily temperature above zero have an inhibitory effect on lake area expansion. The degree of influence of each factor also differs significantly over time and across regions. Spatially quantitative modeling of lake area in the TP using the ESF-SVC method is a new attempt to provide novel ideas for lake research.

scholarly journals Biological Function of Plant Tannin and Its Application in Animal Health

2022 ◽  
Vol 8 ◽  
Author(s):  
Zhenkai Tong ◽  
Wenfeng He ◽  
Xiao Fan ◽  
Aiwei Guo
Keyword(s):  
Influencing Factors ◽  
Pathogenic Bacteria ◽  
Animal Health ◽  
Inhibitory Effect ◽  
Feed Additives ◽  
Animal Products ◽  
Antioxidant Function ◽  
Ruminant Diets ◽  
Pathogenic Viruses

Plant tannins are widely found in plants and can be divided into hydrolyzed tannins and condensed tannins. In recent years, researchers have become more and more interested in using tannin-rich plants and plant extracts in ruminant diets to improve the quality of animal products. Some research results show that plant tannins can effectively improve the quality of meat and milk, and enhance the oxidative stability of the product. In this paper, the classification and extraction sources of plant tannins are reviewed, as well as the biological functions of plant tannins in animals. The antioxidant function of plant tannins is discussed, and the influence of their structure on antioxidation is analyzed. The effects of plant tannins against pathogenic bacteria and the mechanism of action are discussed, and the relationship between antibacterial action and antioxidant action is analyzed. The inhibitory effect of plant tannins on many kinds of pathogenic viruses and their action pathways are discussed, as are the antiparasitic properties of plant tannins. The anti-inflammatory action of tannins and its mechanism are analyzed. The function of plant tannins in antidiarrheal action and its influencing factors are discussed. In addition, the effects of plant tannins as feed additives on animals and the influencing factors are reviewed in this paper to provide a reference for further research.

Evaluation of the antagonistic effect and influencing factors of Bacillus subtilis against wood stain fungi: A systematic literature review and meta-analysis approach

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 2789-2803
Author(s):  
Congxun Huang ◽  
Lihai Wang ◽  
Guoqi Xu ◽  
Pengwei Zhao ◽  
Chuhong Wang
Keyword(s):  
Bacillus Subtilis ◽  
Influencing Factors ◽  
Meta Analysis ◽  
Great Influence ◽  
Field Tests ◽  
Inhibitory Effect ◽  
Antagonistic Effect ◽  
Wood Industry ◽  
Practical Applications ◽  
Biological Methods

Wood sapstain is a serious problem caused by the wood stain fungus, and it has a great influence on the international wood industry. The utilization of biological methods has good prospects for wood conservation. The objective of this study was to systematically estimate the antagonistic effect and influencing factors of Bacillus subtilis against wood stain fungus by using meta-analysis of literature data. Through report retrieval, a total of 992 references on B. subtilis related to wood were obtained. After strict screening, 163 data items from 7 articles were integrated. Estimated by the random-effects model, the combined effect Odds Ratio of the overall antagonistic effect was 0.15 (95% confidence interval [0.06, 0.34]). The results showed that B. subtilis could produce significant antagonistic effects against wood stain fungi. The inhibitory effect of wood stain fungi was affected by the strains of B. subtilis, species of wood stain fungi, the B. subtilis dosage, the type of mixed reagent, and the amount of mixed reagent on different wood stain fungi. The results of this study may provide a reference for biological control experiments, field tests, and practical applications of wood conservation.

scholarly journals Degradation of Diclofenac Sodium by the UV/Chlorine Process: Reaction Mechanism, Influencing Factors and Toxicity Evaluation

2021 ◽  
Author(s):  
qingsong li ◽  
Chengran Lai ◽  
Jianwei Yu ◽  
Jingyu Luo ◽  
Jing Deng ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Influencing Factors ◽  
Diclofenac Sodium ◽  
Order Rate Constant ◽  
Inhibitory Effect ◽  
Active Species ◽  
Free Chlorine ◽  
Order Kinetic ◽  
Solution Ph ◽  
First Order

Abstract This study examined the reaction mechanism, influencing factors and toxicity of diclofenac sodium (DS) degradation by ultraviolet (UV)/chlorine process. The UV/chlorine was capable of eliminating DS from water. The DS degradation during the UV/chlorine process followed a pseudo-first-order kinetic model that was influenced by chlorine dosage, solution pH, humic acid and bicarbonate concentrations. The free chlorine affects not only DS elimination, but the contribution of various active species as well. Increasing free chlorine dosage from 1 to 7 mg·L-1 increased the first-order rate constant of NaClO, ·OH and reactive chlorine species (RCS) from 0.00063, 0.00328 and 0.00203 min−1 to 0.00233, 0.0101 and 0.0974 min−1, respectively, and increased the contribution of RCS from 8.20% to 75.71%, while the contribution of UV, NaClO, and ·OH were declined from 76.02%, 2.54% and 13.24% to 14.63%, 1.81%, and 7.85%, respectively. The contribution of RCS became increasingly prominence with the increment of free chlorine dosage. The kobs,UV/chlorine,DS value decreased from 0.0797 to 0.0445 min-1 as pH increased from 5.0 to 8.0. The presence of bicarbonate and natural organic matter both exerted an inhibitory effect on DS degradation. Eleven intermediate products were identified and the degradation pathway involved C-N cleavage, condensation, hydroxylation, and decarboxylation was proposed. The UV/chlorine process effectively reduced acute toxicity and was superior to chlorination. The genotoxicity induced by a chlorinated solution treated by the UV/chlorine process exhibited negative genotoxicity. These results show that the UV/chlorine process is capable for the degradation and detoxification of DS.

Inhibitory effect of melatonin on nitric oxide synthase in rat enteric nervous system

2001 ◽  
Vol 120 (5) ◽  
pp. A176-A176
Author(s):  
P KOPPITZ ◽  
M STORR ◽  
D SAUR ◽  
M KURJAK ◽  
H ALLESCHER
Keyword(s):  
Nitric Oxide ◽  
Nervous System ◽  
Nitric Oxide Synthase ◽  
Enteric Nervous System ◽  
Inhibitory Effect ◽  
Oxide Synthase

Inhibitory effect of proton pump inhibitors against chemotaxis of Helicobacter pylori

2001 ◽  
Vol 120 (5) ◽  
pp. A655-A656
Author(s):  
H NAKAMURA ◽  
H YOSHIYAMA ◽  
H YANAI ◽  
M SHIRAL ◽  
T NAKAZAWA ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Proton Pump Inhibitors ◽  
Proton Pump ◽  
Inhibitory Effect

The Nature of the Inhibitory Effect of Normal Human Gastric Jiuice on Heidenhain Pouch Dogs

1958 ◽  
Vol 34 (2) ◽  
pp. 181-187 ◽  
Author(s):  
William O. Smith ◽  
Robert Hoke ◽  
Jerome Landy ◽  
Ranwel Caputto ◽  
Stewart Wolf
Keyword(s):  
Inhibitory Effect ◽  
Heidenhain Pouch ◽  
Normal Human

Inhibitory effect of Rhamnus alpinus and Rhamnus saxatilis extracts on chemokine secretion induced by lipopolysaccharide in monocyte-derived macrophages

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
F Epifano ◽  
L Menghini ◽  
A Chiavaroli ◽  
G Orlando ◽  
VD La ◽  
...  
Keyword(s):  
Inhibitory Effect
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