Volume 17, Issue 1 (2020) | American Journal of Applied Sciences

A Hypothesis Which Supports the Possibility of the Existence of Dark Matter with Negative Mass

Florian Ion Tiberiu Petrescu — 2020-01-23

American Journal of Applied Sciences, Published online: 23 January 2020; doi:10.3844/ajassp.2020.1.5

The paper presents an algorithm for calculating the negative mass of an atomic electron, a fact that from a physical point of view shows the possibility of the existence of the matter with the negativ...

Comprehending the Environmental and Household Determinants of Jaundice Prevalence in Western Nepal

Uttam Paudel — 2020-02-19

American Journal of Applied Sciences, Published online: 19 February 2020; doi:10.3844/ajassp.2020.6.12

Persuasive but scanty evidences from literature claim that climate change is linked with neonatal and adult Jaundice prevalence, especially in underdeveloped countries. This paper explored major envir...

The State of Social and Strategic Planning in Spatial Terms (Case Study: Developing Countries), Analytical Study

Khalil Abu Allan — 2020-02-19

American Journal of Applied Sciences, Published online: 19 February 2020; doi:10.3844/ajassp.2020.13.19

Through this study, which showed the important role of social planning and clarify the concept and intent of social planning and the stages of this planning, through a critical and analytical study, b...

Trend and Pattern in Average Monthly Maximum Temperatures in Thailand from 1986 to 2015

Manachai Rodchuen — 2020-03-25

American Journal of Applied Sciences, Published online: 25 March 2020; doi:10.3844/ajassp.2020.20.35

This research aims to study the trends and patterns of average maximum temperature change data of monthly surface in Thailand during the 30 year-period from 1986 to 2015 that has already eliminated se...

Comparison of Air Quality in Kuwait Urban and Industrial Areas

Hamad B Matar — 2020-04-08

American Journal of Applied Sciences, Published online: 8 April 2020; doi:10.3844/ajassp.2020.36.49

This paper describes the research carried out to investigate air quality in Kuwait. It examined the results of several years of pollutants data provided by Kuwait Environment Public Authority. The dat...

Effects of Moisture Content on Thermal Properties of Adobe Bricks as a Sustainable Building Material

Suleman Modu Ngaram — 2020-04-15

American Journal of Applied Sciences, Published online: 15 April 2020; doi:10.3844/ajassp.2020.50.55

The adobe is a widely used traditional material in popular building construction in rural areas of Northeastern, Nigeria and more generally in African countries. In order to increase comfort and energ...

Speed of Sound and Apparent Molal Volume Approach to Study the Ion-Solvent Interactions in Pharmaceutically Important Liquid Systems

D.N. Ganesh — 2020-04-21

American Journal of Applied Sciences, Published online: 21 April 2020; doi:10.3844/ajassp.2020.56.68

Presence of zinc ion and lactose in different pharmaceutical compositions have been inspired to investigate the ion-solvation and related interactions among the components in solution media. This stud...

A Comparative Study of SEM-EDX and ICP-MS Detection Based on Gunshot Residue Originated from AK-47 and M16 Rifles

Yaowaluck Phermpornsagul — 2020-04-30

American Journal of Applied Sciences, Published online: 30 April 2020; doi:10.3844/ajassp.2020.69.82

This is a comparative study on Gunshot Residues (GSR) originated from AK-47 and M16 rifles by SEM-EDX and ICP-MS. The GSR samples were obtained from multiple body parts of the shooter (hand, cloth and...

What is Better for Fusion?

Florian Ion Tiberiu Petrescu — 2020-05-14

American Journal of Applied Sciences, Published online: 14 May 2020; doi:10.3844/ajassp.2020.83.87

It is commonly considered that on earth, the fusion reaction could be started more simply if deuterium or more recently tritium, i.e., hydrogen isotopes 2 and 3, are used because they have a larger (a...

On Using Conventional and TL moments for the Estimation of a Mixture of Exponential Distributions, A Theoretical Review

Habib Ahmed Elsayir — 2020-05-23

American Journal of Applied Sciences, Published online: 23 May 2020; doi:10.3844/ajassp.2020.88.94

This paper focuses on derivation of a mixture of exponential distribution and Linear Moments (LM) and Trimmed Linear moments (TL) is derived for estimation of its parameters. A comparison was made bet...

Presents Some Aspects Related to the Atom and Atomic Electrons, Necessary in Understanding Chemical Bonds and Nanotechnologies

Florian Ion Tiberiu Petrescu — 2020-05-24

American Journal of Applied Sciences, Published online: 24 May 2020; doi:10.3844/ajassp.2020.95.103

The paper presents briefly some aspects regarding the atom and its electrons, these being absolutely necessary for understanding the molecular bonds and future nanotechnologies. It is briefly presente...

Proper Management of Planetary Hydrocarbon Resources

Florian Ion Tiberiu Petrescu — 2020-05-24

American Journal of Applied Sciences, Published online: 24 May 2020; doi:10.3844/ajassp.2020.104.116

Much has been said about the planet's gas and oil resources and many assumptions and speculations have been made regarding their rapid depletion, but a report on the normal and judicious management of...

Assessing of Soil Compaction and Relations to Soil Fertility on Different Land Used in Bintulu, Sarawak

Aizul Azfar Zulkeefli — 2021-01-11

American Journal of Applied Sciences, Published online: 11 January 2021; doi:10.3844/ajassp.2020.117.128

Assessing land uses-induced changes in soil properties from natural forests to farmland are indispensable for addressing the complications in terms of agricultural landscape sustainability. A study wa...

Characteristics of Empty Palm Bunch Fibers as Alternative Pulp Material

Ihak Sumardi — 2020-06-08

American Journal of Applied Sciences, Published online: 8 June 2020; doi:10.3844/ajassp.2020.129.134

Material characteristics in this research become the focus to see the possibility of oil palm Empty Fruit Bunches (EFB) becoming pulp raw material in the future. The oil palm empty fruit bunch fibers ...

Experimental Validation of a Mathematical Model of the Operation of a Hydraulic Ram Pump with a Springs System

Andriamahefasoa Rajaonison — 2020-06-14

American Journal of Applied Sciences, Published online: 14 June 2020; doi:10.3844/ajassp.2020.135.140

Water pumps, which usually require fuels or power, are for carrying water from water sources to a facility, generally a household or a farm in the countryside. The present study consists of conducting...

Effect of Fibre Content on Compressive and Flexural Properties of Coconut Fibre Reinforced Epoxy Composites

Jasem G. Alotaibi — 2020-06-20

American Journal of Applied Sciences, Published online: 20 June 2020; doi:10.3844/ajassp.2020.141.155

Coconut fibre reinforced polymer composites are gaining popularity in the field of engineering due to the many benefits that come with them such as low cost of production, easy fabrication, enhanced s...

A Bilingual Advantage on Word Learning-Factors Influence on Lexical Development of Bilinguals

Ning Cao — 2020-07-08

American Journal of Applied Sciences, Published online: 8 July 2020; doi:10.3844/ajassp.2020.156.160

Lexical development is the changes that occur in vocabulary knowledge. The central role of the lexicon in language and vocabulary development makes it an integral aspect in the study of bilingualism. ...

Tribological Performance of Materials Under Bio-Three Body Abrasion

Jasem G. Alotaibi — 2020-07-14

American Journal of Applied Sciences, Published online: 14 July 2020; doi:10.3844/ajassp.2020.161.170

This study aims to investigate the effects of seed grinding process on the tribological characteristics of components in agricultural machines. The objective is to conduct the the effect of third body...

Effect of the Papaya Latex on the Visibility of Fingerprint

Chantira Boonsri — 2020-07-27

American Journal of Applied Sciences, Published online: 27 July 2020; doi:10.3844/ajassp.2020.171.178

The effect of the papaya latex on the visibility of fingerprint was investigated. The fingerprints of the thumb without and with touching papaya latex for 5 and 10 min were prepared on the glass slide...

Novel De-Oiling of Oil-Water

Emmanuel Ewa Ekeng — 2020-09-02

American Journal of Applied Sciences, Published online: 2 September 2020; doi:10.3844/ajassp.2020.179.187

The study anchors on developing a mechanistic model for oil-water separation. Over the years, researchers have been working on how to improve the quality of produced water effluent especially from oil...

Exponentiated Exponential Weibull Distribution: Mathematical Properties and Application

Dawlah Alsulami — 2020-09-04

American Journal of Applied Sciences, Published online: 4 September 2020; doi:10.3844/ajassp.2020.188.195

An Exponentiated Exponential Weibull Distribution (EEWD) is proposed. Some statistical properties of the proposed distribution are studied. The Maximum Likelihood method (ML) is applied to estimate th...

Length Measurement of Long Gauge Blocks by Interferometer

Kanokporn Kohmun — 2020-09-26

American Journal of Applied Sciences, Published online: 26 September 2020; doi:10.3844/ajassp.2020.196.203

A gauge block interferometer with a vacuum chamber was designed and constructed for the measurement of gauge block lengths between 10 to 1,000 mm. In the chamber, four gauge blocks under the length me...

Assessment of the Toxic Effects of Chitosan-Coated Magnetite Nanoparticles on Drosophila melanogaster

Doris Vela — 2020-09-25

American Journal of Applied Sciences, Published online: 25 September 2020; doi:10.3844/ajassp.2020.204.213

Nanoparticles are a cause for concern because of their potential toxic effects on human health and the environment. The aim of this study was to assess the toxic effect of chitosan-coated magnetite na...

q-Bernoulli’s Equation

Salih Y. Arbab — 2020-10-04

American Journal of Applied Sciences, Published online: 4 October 2020; doi:10.3844/ajassp.2020.214.217

The work shows the q-deformation of Bernoulli’s equation, q-derivative and q-calculus are used to form a q-analogous of Bernoulli’s equation. We introduce the theorem of q-Bernoulli’s equation.

Enhancing of Copper (II) Adsorption Efficiency by Mixing Plantain and Orange Peelings as Bio-Sorbent Support

Samomssa Inna — 2020-10-19

American Journal of Applied Sciences, Published online: 19 October 2020; doi:10.3844/ajassp.2020.218.230

The present study focuses on the valorization of plantain and orange peels in the field of water treatment contaminated by heavy metals, especially copper (II). To carry out this study, simplex centro...

High Deposition Rate of Dual-cathode DC Unbalanced Magnetron Sputtering

Theeranon Chaiyakun — 2020-10-14

American Journal of Applied Sciences, Published online: 14 October 2020; doi:10.3844/ajassp.2020.231.239

Dual-cathode dc unbalanced magnetron sputtering for the deposition of ternary compound films with a high deposition rate was designed and constructed. It consists of two magnetrons of opposite magneti...

Carbon Footprint of the Kuwaiti Public Road Transport Industry

Nawaf H. Aldaihani — 2020-12-15

American Journal of Applied Sciences, Published online: 15 December 2020; doi:10.3844/ajassp.2020.240.245

Throughout the last fifty years, Kuwait's population has grown and its oil exploration has produced massive economic changes. That has led to high vehicle demand. As a result, air pollution is increas...

Performance Enhancement Strategy of Ultra-Thin CIGS Solar Cells

Soumaïla Ouédraogo — 2020-12-24

American Journal of Applied Sciences, Published online: 24 December 2020; doi:10.3844/ajassp.2020.246.255

In this article, numerical modeling and simulation using SCAPS-1D software has been used to explore the performance of CIGS-based solar cells when some parameters are modified. Starting from a baselin...