Nature and Science
Volume 9 - Number 1 (Cumulated No. 46), January 1, 2011
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Titles / Abstracts / Authors
of GA3 and NAA as a Means for Improving Yield, Fruit
Quality and Storability of Black Monukka Grape Cv.
M.S.1, Abd El-Wahab, M.A.*1 and Fkry,
1 Viticulture Res. Dept.,
Hort. Res. Instit., Agric. Res. Center,
2Fruit Handling Res. Dept., Hort. Res.
Instit., Agric. Res. Center, Giza, Egypt
Abstract: This study was carried out for two
successive seasons: 2009 & 2010 in a private vineyard
located at El-Khatatba, Menoufiya governorate; to study the
possibility of increasing yield, improving cluster quality,
reducing berry shattering and enhancing storability of Black
Monukka grapes through spraying with GA3 and
different doses of NAA either in the single or in the combined
form. The chosen vines were ten-year-old, grown in a sandy loam
soil, spaced at 2 X 3 meters apart, irrigated by the drip
system, and cane-pruned and trellised by the double "Y"
shape system. Eight treatments were applied as follows;
spraying with tap water (control), spraying with 20 ppm GA3,
spraying with 25 ppm NAA, spraying with 50 ppm NAA, spraying
with 75 ppm NAA, spraying with 20 ppm GA3 + 25 ppm
NAA, spraying with 20 ppm GA3 + 50 ppm NAA and
spraying with 20 ppm GA3 + 75 ppm NAA. All
treatments were applied after fruit set stage (at 2-3 mm berry
diameter). Spraying with 20 ppm GA3 + 75 ppm NAA
gave the best results in comparison with control. This
treatment resulted in the best yield and its components as well
as the best physical properties of cluster and improved
physical and chemical characteristics of the berries.
Histological studies showed the existence of a negative
correlation between pedicel diameter and shattering through the
increase in thickness of the cortex and xylem layers in all
treatments specially that of spraying with 20 ppm GA3
+ 75 ppm NAA. Concerning the effect of GA3 and/or
NAA on clusters during cold storage for four weeks at 0°C, RH
90-95%, it was noticed that spraying with 20 ppm GA3
+ 75 ppm NAA was the best treatment on enhancing storability,
since it reduced wastage resulting either from disease
infection or physiological disorders and inhibited the rate of
deterioration of physical and chemical properties of grapes
during cold storage by reducing weight loss (%), decay (%),
shattering (%), total spoilage (%) and the decrease in
firmness, it also increased berry colour, TSS and TSS/acid
ratio and decreased acidity compared to control. The economical
study indicated that spraying clusters with 20 ppm GA3
+ 75 ppm NAA resulted in the highest net income of Black
Monukka grape as compared to the control.
M.S., Abd El-Wahab, M.A. and Fkry, O.M. Application of GA3
and NAA as a Means for Improving Yield, Fruit Quality and
Storability of Black Monukka Grape Cv. Nature and Science
2011;9(1):1-19]. (ISSN: 1545-0740). http://www.sciencepub.net.
GA3; Improving Yield; Fruit Quality; Storability;
Black Monukka Grape
across supply chain:
Department of Industrial Management, Faculty
In order to respond
of materials used
waste in activities
Impact of sources
across supply chain:A new
waste in activities, supply
Pasting Properties of
Heat-Moisture Treated Starches of White and Yellow Yam (Dioscorae
Oladebeye Abraham Olasupo1, *,
Oshodi Aladesanmi Andrew2, Oladebeye Aderonke
Polymer Technology, Auchi Polytechnic, P.M.B. 13, Auchi,
Chemistry, Federal University of Technology, P.M.B. 704, Akure,
Food Technology, Auchi Polytechnic, P.M.B. 13, Auchi, Nigeria
of white and yellow yam cultivars (Dioscorae species) were
extracted, physically modified by means of heat-moisture
treatment (HMT) and evaluated for pasting properties, such as
gelatinization temperature, paste viscosity, retrogradation and
stability by using Rapid Visco-Analyzer (RVA). The modified
white yam starch samples exhibited lower values than the native
starch sample in terms of viscosity and stability while an
opposite trend was obtained in terms of pasting time and
gelatinization. Heat-Moisture treated white yam starch at 18%
moisture content exhibited the least tendency to retrograde
among the starch samples. As heat-moisture treatment increased,
there was a noticeable progressive decrease in the values of
pasting viscosity and stability for yellow yam starch coupled
with a sequential increase in terms of retrogradation, pasting
time and gelatinization temperature. An inverse proportionality
between the values of retrogradation and paste stability of the
starch samples was observed. However, the native yellow yam
starch possessed relatively higher paste stability (312 RVU)
than the corresponding native white yellow yam (308 RVU). The
heat-moisture treated samples seemed to be more applicable in
pastries than the native starch samples.
Abraham Olasupo, Oshodi Aladesanmi Andrew, Oladebeye Aderonke
Adenike. Pasting Properties of Heat-Moisture Treated
Starches of White and Yellow Yam (Dioscorae species)
Cultivars. Nature and Science 2011;9(1):29-33]. (ISSN:
Key words: Starch, heat-moisture
treatment, pasting properties
Flavone-5-O-Glycosides from Cheilanthes dalhousiae
Rachana Mishra and D. L. Verma
Department of Chemistry, Kumaun University, SSJ Campus,
(Uttarakhand) India. Email: firstname.lastname@example.org
Abstract: Fern fronds (about
500gm) of Cheilanthes dalhousiae Hook. Vouch. Sp. No. 21
was collected from Pindari glacier routes (2200-2800m) of
Almora district of Uttarakhand state. It was extracted with
acetone-water (1:1, V/V) and extract was concentrated under
reduced pressure until H2O layer (up to 50ml)
remained. The H2O layer was partitioned with CH2Cl2,
EtOAc and BuOH Successively. The CH2Cl2 fraction gave
antibacterial tests against Bacillus subtilis, Pseudomonas
aeruginosa, Staphylococcus epidermidis and Escherichia
coli by the standard method of disc-diffusion using DMSO-d6
solution of CH2Cl2 residue impregnated on
Whatman No. 3, paper disc (6 nm) and base plates containing
10ml MH agar. Antibacterial activity was expressed as the ratio
of the inhibition zone (nm) produced by CH2Cl2
extract and the inhibition zone caused by the reference,
neomycin (2μg). No antibacterial activity was observed in
ethyl-acetate and n-butanol fractions. EtOAc fraction was
evaporated to dryness and residue obtained was dissolved in
MeOH. The MeOH soluble of EtOAc fraction was fractionated on
Whatman No. 3 chromatographic papers using BAW (n- BuOH-AcOH-H2O,
4:1:5, V/V, upper layer) as an eluent. Two blue UV fluorescent
flavone-5-O-glycosides: Quercetin-3-methyl ether-5-O-glycoside
and Kaempferol-5-O-(6”-O-malonyl)-glycoside were isolated by
RPPC from EtOAc fraction of acetone-H2O (1:1)
extract of fern fronds of Cheilanthes dalhousiae. The
structural elucidation of the compounds was carried out by UV, 1HNMR and MS spectral
Mishra and D. L. Verma. Flavone-5-O-Glycosides from Cheilanthes
dalhousiae (Hook). Nature and Science 2011;9(1):34-38].
(ISSN: 1545-0740). http://www.sciencepub.net.
Cheilanthes dalhousiae (Hook), Medicinal plants
Of 2, 4 Dichlorophenol Degradable Crude Extracts Produced By Pseudomonas
Aeruginosa Using Box Behnken Design
Manikandan*, H. Janardhana Prabhu†, P.
Sivashanmugam†, CN Pratheeba‡
and Pankaj Sah*
†Department of Chemical
Engineering, NITT (India), ‡Department of Chemical
Engineering, Kalasalingam University, TN (India), *Department
of Applied Sciences, Higher College of Technology, Muscat
(Sultanate of Oman).
ABSTRACT: Pseudomonas aeruginosa was grown on mineral
medium containing 2, 4 dichlorophenol as a sole source of
carbon and energy. Process optimization was carried out by
developing 17 combinations using Box Behnken design to identify
the best combinations of the parameters which involved in the
production biomass to obtain high yield of crude extract. The
highest protein concentration in biomass from 17 combinations
obtained from the experiment is 4.99 mg/ml (35 ml of medium, 6
ml of inducer and 6 ml of inoculum). The point prediction from
the analysis of variance for response surface cubic model for
the production of protein concentration (4.88 mg /ml) is 35 ml
of medium, 4.5 ml of inducer and 4 ml of inoculum.
[R. Manikandan, H.
Janardhana Prabhu, P. Sivashanmugam, CN Pratheeba‡
and Pankaj Sah. Optimization Of 2, 4 Dichlorophenol
Degradable Crude Extracts Produced By Pseudomonas Aeruginosa
Using Box Behnken Design.
Nature and Science 2011;9(1):39-44]. (ISSN: 1545-0740). http://www.sciencepub.net.
Key words: 2, 4 Dichlorophenol, Crude
extract, Pseudomonas aeruginosa, Optimization , ANOVA
and Box Behnken design
Implications Of Crude Oil Pollution On Rhizophora Racemosas (G.F.W. Meyer)
of Forestry and Wildlife, Faculty of Agriculture, Delta State
University, Asaba Campus.
An experiment was conducted in 2008 in Asaba, Delta
State, Nigeria to evaluate the eco-toxicological implications
of crude oil pollution on Rhizophora racemosa seedlings.
Five crude oil levels of crude oil (0.0, 12.0, 18.0, 24.0 and
30.0%) per 1.5kg of flood soils served as the treatments. The
experiment was laid out in a randomised complete block design
with four replications. The results showed that oil pollution
at 18.0, 24.0 and 30.0% significantly affected (P>0.05)
the seedlings of the test plant in terms of plant height,
number of leaves, leaf area, collar diameter and root, growth
at the 5% probability level when compared with the seedlings
grown in the unpolluted soils and those exposed to 12.0% of the
oil. Root growth of the seedlings was significantly reduced (P>0.05)
with increasing oil levels. At 30.0% oil treatment, root hairs
were totally absent. The study has established that R.
racemosa seedlings tolerated all the crude oil
concentrations used. No death was recorded throughout the trail
period although significant reductions were noticed with
increasing oil levels and this may have implications on the
growth and establishment of the red mangrove. Conclusively, R
.racemosa seedlings conserve as a bio-indicator of
pollution and can be recommended for use in area of low levels
of pollution for environmental clean-up or bioremediation.
O.M. Eco-Toxicological Implications Of Crude Oil Pollution
On Rhizophora Racemosas (G.F.W. Meyer). Nature
and Science 2011;9(1):45-49]. (ISSN: 1545-0740). http://www.sciencepub.net.
Key words: Toxic implications,
crude oil pollution, Rhizophora racemosa,
Effect Of Particulate
Materials On Lactic Fermentation Of New Local White Variety
Cassava (“Bianbasse”) Using Both Spontaneous And Starter
Adetunde L. A., Onilude A.
A., Adetunde I. A.
L. A., University For Development Studies, Faculty Of Applied Sciences
Applied Biology, Department Of Botany And Microbiology,
Navrongo Campus. Ghana. Uer
Onilude A. A.,
University Of Ibadan, Department Of Botany And Microbiology,
Ibadan. Oyo State
Adetunde I. A.,
University Of Agriculture, College Of Natural Sciences,
Department Of Mathematical Sciences. Abeokuta. Ogun State
The Author To
Be Communicated: email@example.com
Lactic acid bacteria isolated in the fermentation of cassava
for ‘fufu’ were Lactobacillus plantarium, Lactobacillus
sp and Leuconostoc mesenterodes. L
plantarium was identified as the most predominant lactic
acid bacteria and was used as a starter culture for the
fermentation of ‘fufu’ production. The mean value counts during
spontaneous fermentation, the total dissolved loads in all the
samples, the total reducing sugars of all samples, the
microbial loads in all the samples, the contents of crude
protein, crude father, ash, crude fidbe, phytic acid and Tannin
were determined. The mean value counts during spontaneous fermentation
process from zero hour to 72hours were found to increase 0.67 x
1012cfu/ml to 3.56 x 1012 in lactic acid bacteria than total
bacteria with an increase from 0.69 x 1012 to 2.94 x 1012cfu/ml
and yeasts which increased from0.07 x 1012 to 2.06 x 1012cfu/ml.
There was corresponding increase in total dissolved solids of
sample from 600mg/l to 2500mg/l, when varying the concentration
of particulate materials for 72 hours and from 500mg/l to
1400mg/l when varying the concentration of Osmoregulators. The
total reducing sugar for all the samples ranged from 5.8mg/l to
5.7mg/l at zero hour. At 24 hours, it ranged from 3.0mg/l to
5.4mg/l, at 48 hours it ranged from 3.5mg/l to 6.2mg/l and 72
hours, it ranged from 4.8mg/l to 6.4mg/l. Sample A inoculated
with starter culture highest counts of Lactic acid bacteria
ranged from 3.35 to 5.50 x 109cfu/ml while total bacterial
counts ranged from 1.23 to 1.32 x 109cfu/ml. Other samples with
supplemented materials had lactic acid bacterial counts ranged
from 2.60cfu/ml to 3.92 x 109cfu/ml while bacterial counts
ranged from 3.15 to 3.80 x 109cfu/ml. Control had LAB counts
ranged from 2.52 to 3.04 x 109cfu/ml while total bacterial
counts ranged from 2.48 to 2.80 x 109cfu/ml.
[Adetunde L. A., Onilude A.
A., Adetunde I. A. Effect Of Particulate Materials On Lactic
Fermentation Of New Local White Variety Cassava (“Bianbasse”)
Using Both Spontaneous And Starter Culture. Nature and
Science 2011;9(1):50-56]. (ISSN: 1545-0740). http://www.sciencepub.net.
planetarium, Lactobacillus sp, Leuconostoc mesenterodes,
fufu, Osmoregulators, Lactic acid bacteria and fermentation.
Floristic structure and
phytodiversity along an elevational gradient in
Peepalkoti-Joshimath area of Garhwal Himalaya, India
V P Bhatt, Vijay Kant
V P Bhatt1,
Department of Botany, Govt P G College, Gopeshwar, 246401, Chamoli,
Vijay Kant Purohit2,
High Altitude Plant Physiology Research Centre, HNB Garhwal
University, Srinagar (Garhwal) Uttarakhand, India
E Mail: firstname.lastname@example.org
present study was conducted in temperate Himalayan forests of
Joshimath area in Chamoli district of Uttarakhand to understand
the effect of altitudinal variation on structure and
composition of the vegetation and to record the floristic
diversity and economic utilities of the plants in the study
area. Three altitudinal zones viz., upper zone (U) = 2000-2200m
asl, middle zone (M) = 1800-2000m asl and lower zone (L) =
1600-1800m asl were selected for the study. In the present floristic
survey the total of 74 families (72 Angiospermous and 2
Gymnospermous), 149 Genera (145 Angiospermous and 4
Gymnospermous) and 177 species (173 Angiospermous and 4
Gymnospermous) were recorded in the study area. Out of these
177 species identified in the study area 100, 47, 20 and 10
were herbs, shrubs, trees and climbers respectively. Rosaceae
was the dominant family recorded with 16 species in the study
area followed by the Asteraceae (15), Lamiaceae (11), Fabaceae
(11) and Caryophyllaceae (5). In Ethnobotanical survey very
useful information was recorded about the economic utility of
the plants species present in the study area. Uses recorded
were medicinal, fuel, fodder, edible and timber. Tree Species
richness (SR) decreased from lower altitude to higher altitude.
Species diversity (richness) and
dominance (Simpson index) were found to be inversely related to
each other. Tree density decreased from lower altitude
to upper altitude, whereas TBC showed reverse trend.
P Bhatt, Vijay Kant Purohit, Floristic structure and
phytodiversity along an elevational gradient in
Peepalkoti-Joshimath area of Garhwal Himalaya, India.
Nature and Science 2011;9(1):57-67]. (ISSN: 1545-0740). http://www.sciencepub.net.
floristic composition, diversity indices, economic utility of
Community Participation for Educational Planning
Science and Research Branch, Islamic Azad University, Fars, Iran
This research set out to explore the roles communities in the
development of education. The concept of community participation
has been important around the world. In developed countries
communities have important role in the processes of educational
planning and development. But in third world countries there are
some important barriers in face of community participation in
education activities. This paper looks at the barriers of
community participation in educational activities as well as
role of community participation in educational planning. This
research draws from my scientific experience in a variety of
disciplines namely; anthropology and education.
[Nature and Science. 2011; 9(1): 68-71]. (ISSN: 1545-0740).
participation, development, education
And Photosynthetic Pigments Of Fodder Beet Plants As Affected
By Water Regime And Boron Foliar Fertilization
M.M.; Shaaban2, M.M., El-Saady2, A.M. and
1Water Relations &
Irrigation Dept.; 2 Fertilization Technology Dept.
Research Centre, Dokki-Cairo, Egypt
ABSTRACT: Pot experiment was
conducted in the greenhouse of the National Research Centre,
Dokki- Cairo, Egypt during the winter season of 2006/2007 to
evaluate the effect of available water depletion before irrigation
(AWDBI) and boron foliar spray on growth and photosynthetic
pigments of fodder beet plants c.v. Red Forshenger. The
experiment contained 3 levels of AWDBI in combination with 2
boric acid treatments in addition to the control treatment i.e.
9 treatments in 6 replicates arranged in split plot design.
Negative relationship was found between leaf area, and fresh
and dry weights of fodder beet plants and AWDBI. The whole
fresh weight/plant showed the same response while the dry
weight of whole plant with the two drought treatments showed
approximately the same values. Top, root and whole plant fresh
or dry-weight gave their higher values when plants received 75
ppm boric acid which exceeded than those received 150 ppm boric
acid or sprayed by fresh water. However, leaf area and
shoot/root ratio increased as the boric acid concentration
increased up to 150 ppm. Plant height and number of
leaves/plant did not significantly affect by boron spraying.
Top/root ratio increased with boron application under different
AWDBI. The highest percentages of Chl a, Chl b, carotenoids and
total chlorophyll were obtained by spraying 75 ppm boric acid
compared to spraying with 150 ppm or control plants. This was
true for Chl a / Chl b and total chlorophyll / carotenoids ratio.
Positive relations were found among the concentration of N, K,
Ca and Zn and drought treatments. Phosphorus, Mg and Na
concentrations did not affect. Either Fe or Cu concentration
decreased by both drought treatments, however, the
concentration of Mn decreased with the 50 days period AWDBI and
tended to increase to be more than the control treatment. Increasing the period of available water
depletion before irrigation induced positive effect on N and Ca
uptake, while, K, Mg, Na, Fe, Mn and Cu uptake showed opposite
trend. In the same time the dose 75 ppm boric acid increased
both concentration and uptake of macro and micro-nutrients by
the plant tops; however the higher dose (150 ppm) led to a
Shaaban, M.M., El-Saady, A.M. and El-Sayed, A.A. Growth And
Photosynthetic Pigments Of Fodder Beet Plants As Affected By
Water Regime And Boron Foliar Fertilization. Nature and Science. 2011;9(1):72-79].
(ISSN: 1545-0740). http://www.sciencepub.net/nature.
Keywords: Fodder beet, Available
water depletion, Boron, Growth, Pigments, Mineral status
Evaluation Of Garhwal
Springs Water For Drinking Purpose By Using Water Quality Index
Suman Chauhan#, Amit Pal Singh, Neha Chamoli and
Krishna Kumar Pande
*Dept. of Applied Sciences,
College of Engineering,
Teerthanker Mahaveer University, Moradabad, UP-India, 244001
#Research Officer, Paramhans
Sanstha (N.G.O.), Dehardun, Uttarkhand, India
Dept. of Biotechnology,
H.N.B. Garhwal University, Srinagar, Uttarakhand, India
Director, College of
Engineering, Teerthanker Mahaveer University, Moradabad-UP,
email@example.com, firstname.lastname@example.org, email@example.com
Abstract: A very few studies have
been carried out on natural springs of Garhwal Himalayas which
is the main source of potable water in Garhwal Himalayas. This
paper based on water quality status of these springs, for this
purpose parameters like alkalinity, acidity, DO, BOD, free CO2,
nitrate, chlorides, hardness, pH and coliform number were
studied. The study elucidates that the water quality of
selected natural water springs is suitable for drinking
[Avnish Chauhan, Suman
Chauhan, Amit Pal Singh, Neha Chamoli and Krishna Kumar Pande.
Evaluation Of Garhwal Springs Water For Drinking Purpose By
Using Water Quality Index. Nature
and Science. 2011;9(1):80-84]. (ISSN: 1545-0740). http://www.sciencepub.net/nature.
Keywords: - Spring water, DO, BOD,
Alkalinity, Hardness, coliform, Garhwal
Studies on the Effect of Inoculation with Arbuscular
Mycorrhizae (AM) Fungi on Superior Grape Rootings under Salt
Abd El-Wahab, M.A.*1; El-Helw, H.
A.1 and Tolba, H. I.2
1Viticulture Res. Dept., Hort. Res.
Instit., Agric. Res. Center, Giza, Egypt
2Microbiology Res. Dept.,
SWE Res. Instit., Agric. Res. Center, Giza, Egypt
was carried out to disclose the effect of soil inoculation with
arbuscular mycorrhizal fungi under different water salinity
levels (1000, 2000 and 3000 ppm) in an attempt to improve
vegetative growth parameters, nutritional acquisition and
microbial and enzyme activity in the rhizosphere of Superior grape
rootings through two successive seasons (2008 & 2009).The
results indicated that increasing levels of water salinity,
particularly in case of high salinity concentration (3000 ppm)
decreased survival percentage and vegetative growth parameters
(i.e. shoot length (cm), shoot diameter (cm), number of
leaves/plant, average leaf area (cm2), total leaf
area/plant (cm2), coefficient of wood ripening,
shoot and root biomass, total biomass and root/shoot ratio).
Leaf total chlorophyll, nitrogen, phosphorus, potassium,
calcium, magnesium and sulfur content and shoot total
carbohydrate content decreased with increasing salinity
concentration. On the contrary, leaf proline amino acid,
sodium, and chloride content increased with increasing levels
of salinity. Concerning the microbial and enzyme activity in
the rhizosphere of Superior grape rootings, it was noticed that
populations of total microbial count, spore numbers of AM
fungi, the percentage of infection of AM fungi, dehydrogenase
enzyme activity in the rhizosphere were also decreased with
increasing levels of water salinity. Superior grape rootings
strategy for salt stress tolerance could be achieved by AM
fungi colonization. AM fungi inoculation benefits the plants by
avoiding the undesirable effects of saline water and improving
of survival percentage, vegetative growth parameters, nutrient
acquisition and microbial and enzyme activity in the
rhizosphere of Superior grape rootings under low to medium
level salt concentrations (1000-2000 ppm). However, AM fungi
inoculation didn’t protect the plants at the highest salt
concentration (3000 ppm) used in this experiment.
[Abd El-Wahab, M.A.;
El-Helw, H. A. and Tolba, H. I. Physiological Studies on the
Effect of Inoculation with Arbuscular Mycorrhizae (AM) Fungi on
Superior Grape Rootings under Salt Stress Conditions. Nature and Science. 2011;9(1):85-100].
(ISSN: 1545-0740). http://www.sciencepub.net/nature.
Keywords: Inoculation, Arbuscular
Mycorrhizae, Superior Grape
Study of some Wild Plants from Taif,
M.S.A.¹*, El-Tarras. A.² and
El-Awady, M. A.²
& Genet. Eng.
Res. Unit, Taif
Permanent Address: *¹Botany &
Microbiology Dept., Fac. of Science,
Helwan, Egypt (*Corresponding
author); ²Genetics Dept., Fac.
of Agriculture, Cairo Univ., Egypt. firstname.lastname@example.org
Arabia is the largest country of the Arabian Peninsula which
has a diverse higher plant flora in its varied landscapes with
more than 2243 plant species which has a valuable economic
importance due to its usage as pharmaceuticals, nutritional,
fire wood suppliers as well as its use in popular remedy. Due
to the scant of wild plant species studies of Arabian in
literatures, the present study aim to report the chromosome
numbers of 8 taxa belonging to 4 families of angiosperms
collected from Taif province, Saudi Arabia flora. These taxa
are: Solanum villosum Mill., Datura stramonium
L., Aerva javanica (Burm.f.) Juss. Ex Shult, Calotropus
procera (Aiton) W.T. Aiton, Acacia tortilis
subspecies tortilis (Forssk.) Hayne, Acacia oerfota
(Forssk.) Schweinf, and Acacia gerrardii Benth.
M.S.A., El-Tarras. A. and El-Awady, M. A. Cytologenetical
Study of some Wild Plants from Taif, Saudi Arabia. Nature and Science. 2011;9(1):101-104].
(ISSN: 1545-0740). http://www.sciencepub.net/nature.
words: Chromosome number, Solanum, Datura,
Aerva, Calotropus, Acacia.
ISO 5130and ISO 362 for determination of both stationary and
pass–by vehicles noise and discuss
Abd-elfattah A. Mahmoud
National Institute for Standard, Acoustics Dep,
traffic noise is considered as one of the most important public
annoyances. Using ISO 362 measurements of vehicles pass- by
noise are needed to predict any change in traffic sound levels.
Also, ISO 5130 is used for determination the noise emitted by
stationary road vehicles. The difference between the two cases,
namely, stationary and pass-by, depends on different parameters
(tires-road surface – etc). From the measurements carried out on
vehicles, using the two mentioned methods, the parameters values
could be evaluated.
A. Mahmoud. Using ISO 5130and ISO 362 for determination of
both stationary and pass–by vehicles noise and discuss
Nature and Science. 2011;9(1):105-110]. (ISSN: 1545-0740).
Using ISO 5130and ISO 362 for determination of both stationary
and pass–by vehicles noise and discuss the difference between
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