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Author(s): 

LU H.T. | YANG Z.J. | YANG X.

Journal: 

ELECTROCATALYSIS

Issue Info: 
  • Year: 

    2015
  • Volume: 

    6
  • Issue: 

    -
  • Pages: 

    255-262
Measures: 
  • Citations: 

    1
  • Views: 

    175
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2019
  • Volume: 

    10
  • Issue: 

    4 (38)
  • Pages: 

    41-54
Measures: 
  • Citations: 

    0
  • Views: 

    986
  • Downloads: 

    0
Abstract: 

This study was conducted to evaluate the effects of formic acid, potassium Di format and formic acid nano-chitosan solution application on different growth factors and body composition of common carp. The experiment was conducted in a randomized complete design with 10 treatments and three replications. In total, 450 common carp fingerlings (10 treatment × 15 fish in each tank× 3 replication) with an initial average body weight (BW) of 16. 5± 0. 5 g were studied. The treatments were included i) three diets supplemented with formic acid nano – chitosan solution levels, ii) three formic acid levels, iii) three potassium Di format levels using commercial feed as 0. 25, 0. 5, 0. 75% of diet and also one treatment as control that were fed with commercial feed without additive. Fish in the experimental treatments were fed for 8 weeks ad libitum. Effects of the treatments on growth performance, and body composition of common carp (Cyprinus carpio fingerlings) were evaluated. Results showed that formic acid, potassium Di format and nano-chitosan acidifier as 0. 75% level had negative effects on final fish weight and special growth rate compared with control group (P<0. 05). On the other hand, the highest amount of food converstion ratio was observed in formic acid, potassium Di format and nano-chitosan acidifier treatmenys as 0. 75% level of diets compared with control group (P<0. 05). In this study, the protein and fat contents of the whole body were significantly different among treatments (P<0. 05) and the beneficial effect of the diets was observed in the level of 0. 25% formic acid nano-chitosan Solution. The results showed that survival rate was not significantly different between the treatments and control group (P>0. 05). Therefore, in order to improve the biochemical composition of the body, it is recommended to use 0. 25% Formic acid Nano-Chitosan Solution in common diets of common carp.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

BAGHERI M.H.

Issue Info: 
  • Year: 

    2005
  • Volume: 

    30
  • Issue: 

    4
  • Pages: 

    199-199
Measures: 
  • Citations: 

    0
  • Views: 

    264
  • Downloads: 

    0
Keywords: 
Abstract: 

Wart is a common dermatologic disease caused by infection with various strains of human apilloma virus, and mostly seen in children. Age, immunologic status and compliance of the individual, as well as extent and the duration of the lesion may help to determine the treatment modality.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

MIRBABAIE N. | MOHAMADI M.

Journal: 

VIRTUAL

Issue Info: 
  • Year: 

    621
  • Volume: 

    1
  • Issue: 

    1
  • Pages: 

    0-0
Measures: 
  • Citations: 

    1
  • Views: 

    127
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2009
  • Volume: 

    19
  • Issue: 

    71 (PHYSIC ISSUE)
  • Pages: 

    73-80
Measures: 
  • Citations: 

    0
  • Views: 

    929
  • Downloads: 

    0
Abstract: 

Introduction: The study and measurement of electron density and other parameters of plasma by far infra red sources has been the subject of attention for many researches during years. Lasers are the best source in such researches. Formic acid lasers with wave length of 349,434,511 micron pumped by a co2 lasers are the most famous one for these kinds of application.Aim: The Theoretical Studies of Formic Acid Lasers with Two Resonator Structures.Materials and Method: the gain and out put power of formic acid FIR lasers in two structures has been formulated by solving the rate equation in special condition. The effects of some parameters such as pressure and input co2 laser power have been discussed. The comparison and optimization of two structure being made by using the obtained equations and by changing the x and y of sandwich waveguide cavity by r and q ordinary cavity.Result: Different diagrams showing the variation of gain and out power of laser in two structures has been obtained. The diagrams showed the maximum efficiency for each case. The diagram of gain versus input power shows the gain reaches a maximum for a specified power and then saturate by increasing the power. Also the diagram of gain versus lengh shows that gain builds up exponentially to a maximum point and then drops.Conclusion: The Fir lasers have a low efficiency due to the physical and no uniform distribution of field in the cavity and the two structures does not make such a big improvement in this regards.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2013
  • Volume: 

    16
Measures: 
  • Views: 

    116
  • Downloads: 

    70
Keywords: 
Abstract: 

FORMYLATION OF AMINES IS AN IMPORTANT REACTION IN SYNTHETIC ORGANIC CHEMISTRY. FORMAMIDES, AN IMPORTANT CLASS OF AMINE DERIVATIVES, HAVE WIDELY BEEN USED IN THE SYNTHESIS OF PHARMACEUTICALLY ACTIVE COMPOUNDS AND FORMAMIDINES. IN ADDITION, FORMAMIDES HAVE BEEN ALSO EXTENSIVELY EMPLOYED IN ORGANIC SYNTHESIS AS PROTECTING GROUP OF AMINES IN PEPTIDES SYNTHESIS, PRECURSORS TO ISOCYANIDES AND LEWIS BASE CATALYSTS IN ORGANIC TRANSFORMATION SUCH AS ASYMMETRIC ALLYLATION. IN THE LITERATURE, VARIOUS APPROACHES ARE AVAILABLE FOR N -FORMYLATION USING DIFFERENT REAGENTS SUCH ASCHLORAL [1], FORMIC ACID-DCC [2], PARAFORMALDEHYDE [3], FORMIC ACID-SODIUM FORMATE [4] AND FORMIC ACID-POLYETHYLENE GLYCOL (PEG-400) [5]. VERY RECENTLY THE FORMYLATION OF ALIPHATIC AND AROMATIC AMINES WITH FORMIC ACID BY USING LEWIS ACIDS SUCH AS ZNCL2, FECL3, ALCL3, NICL2 HAS BEEN REPORTED [6]. WE REPORT HEREIN THE CHALLENGE TO CARRY OUT N -FORMYLATION REACTION APPLICABLE TO HETEROARYL AMINES IN THE PRESENCE OF NANOPARTICLES OF AL2O3 [7] AS AN EFFICIENT CATALYST UNDER SOLVENT-FREE CONDITIONS. THIS PROCEDURE FOR THE SYNTHESIS OF N -HETEROARYL FORMAMIDES WORKS WELL FOR ELECTRON-DEFICIENT PRIMARY HETEROARYLAMINES. THE NOVEL SYNTHESIS OFFERS THE ADVANTAGES OF SIMPLICITY, SHORT REACTION TIMES, EXTREMELY MILD REACTION CONDITIONS AND ENVIRONMENTALLY BENIGN. THE CATALYST COULD BE RECYCLED AND REUSED WITHOUT A NOTICEABLY DECREASE IN ITS ACTIVITY. ALL PRODUCTS WERE WELL CHARACTERIZED BY 1H NMR, 13C NMR, FT IR, MASS SPECTRA, AND MELTING.

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    14
  • Issue: 

    4
  • Pages: 

    219-228
Measures: 
  • Citations: 

    0
  • Views: 

    1020
  • Downloads: 

    0
Abstract: 

The aim of this study is to investigate the possibility of the using rice bran as a natural and suitable adsorbent for the removal of formic acid, which is an organic acid from liquid solution, allow the effect of various parameters such as adsorbent dose, initial concentration adsorbate, temperature and time on the adsorption process and finally the adsorption isotherm constants in determined. Removal of organic acids from liquid solutions is an important environmental challenge. Batch adsorption experiments showed that the adsorption increased with the increasing of the amount of adsorbent, initial concentration of adsorbate and decreasing temperature and adsorption process is reached the equilibrium state after one hour. The adsorption data were analyzed using the various isotherm models. From these various isotherm models, the adsorption process obeys the Langmuir and Freundlich adsorption isotherms. The results show a good agreement with both methods. The average amount of adsorbate per 3 degrees of freedom and confidence 95%, 10.39±0.095, was obtained.

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Issue Info: 
  • Year: 

    2012
  • Volume: 

    1
  • Issue: 

    3
  • Pages: 

    9-16
Measures: 
  • Citations: 

    1
  • Views: 

    976
  • Downloads: 

    0
Abstract: 

The effects of Protexin (probiotic) and formic acid were studied on performance in 200 Cobb broiler chicks in a completely randomized design with 4 treatments and 5 replications and 10 chicks per replicate. The chicks in first group as control were fed with basal diet. The chicks in the second, third and forth groups were fed with food, which contained 0.1 gr/kg Protexin, 0.8 percent formic acid and 0.1 gr/kg Protexin with 0.8 percent Formic acid in diet, respectively. To measurement of performance, broilers and remainder food in each replication were weight, weekly and feed conversion rate were calculated in each week. The results indicated that body weight gain not affected by experimental treatments (P>0.05). Protexin and Protexin + formic acid in grower period and Protexin in finisher period reduced feed intake (P<0.05). Treatment groups improved feed conversion rate in grower and finisher periods (P<0.05) but the forth group were not significantly different from second and third groups (P>0.05). Thymus and bursa of Fabricius weights were increased in treatment groups (P<0.05). It is concluded that Protexin and formic acid improved feed conversion rate and increased weights of thymus and bursa of Fabricius, synergism effect of Protexin and formic acid on performance did not observe.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: 

SCIENTIA AGRICOLA

Issue Info: 
  • Year: 

    2004
  • Volume: 

    61
  • Issue: 

    -
  • Pages: 

    371-375
Measures: 
  • Citations: 

    1
  • Views: 

    193
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

YANG W. | LI P. | BO D.

Journal: 

CARBOHYDRATE RESEARCH

Issue Info: 
  • Year: 

    2012
  • Volume: 

    357
  • Issue: 

    -
  • Pages: 

    53-61
Measures: 
  • Citations: 

    1
  • Views: 

    100
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 100

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