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Latest Published Papers

Sorption of Malachite Green by Polymer Composite Sorbents from Aqueous Solution

Umid Mirzakulov, Muzaffar Makhkamov, Islomjon Khudoyberdiyev

American Journal of Polymer Science, 2023, 12(2), pp. 32-36

DOI: 10.5923/j.ajps.20231202.02

Open Access
In this work, the sorption of malachite green (MG) from aqueous solutions by polymer composite gels (PCG) prepared on the basis of polyacrylic acid and bentonite clay (BG) was studied. It was found that the sorption capacity of PCG containing 50 weight % BG is almost three times greater than that of ...

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151 Views  61 Downloads

Black Box Modelling of Dual Axis Fast Steering Mirror Assembly

Mahua Pal, Kumardeb Banerjee, Bivas Dam

American Journal of Signal Processing, 2023, 12(1), pp. 1-10

DOI: 10.5923/j.ajsp.20231201.01

Open Access
In challenging environments, precise laser beam control is essential both for military and industrial purposes. Fast Steering Mirror Systems are integral in achieving this precision, utilizing advanced controllers based on accurate mathematical models. This study proposes a systematic black-box ...

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224 Views  67 Downloads

Urban Spatial Structure and the Density of Retail Shops in Cities

Peter Maluki Samburu, Fredrick Omondi Owino, Naomi Apali Mogoria

Architecture Research, 2023, 13(2), pp. 59-83

DOI: 10.5923/j.arch.20231302.03

Open Access
The variability of the location and retail shop density relative to the urban structure of informal and formal settlements are pervasive issues in many cities. Therefore, this study examines the relationship between street metric properties and retail shop density and the association between spatial ...

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189 Views  69 Downloads

Discovery of a Universal Static Thermal Repulsive Force

Liu Ke Dian

International Journal of Theoretical and Mathematical Physics, 2023, 13(3), pp. 59-74

DOI: 10.5923/j.ijtmp.20231303.01

Open Access
This paper aims to present the key points of the discovery of a universal static thermal repulsive force. The breaking through point is to clarify and verify the gas pressure being not caused by the collisions of gas molecule but by a universal static thermal repulsive conservative contact force. If ...

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117 Views  69 Downloads

Solubility of Components in the (NH4)2HPO4-NH(C2H4OH)2-H2O System

Saidolim Mardanov, Shokhida Khamdamova

International Journal of Materials and Chemistry, 2023, 13(2), pp. 23-27

DOI: 10.5923/j.ijmc.20231302.02

Open Access
In this paper, the solubility of the components in the system (NH4)2HPO4-NH(C2H4OH)2-H2O was studied from the freezing point (-58.7°C) to 70.0°C. A polythermal solubility diagram has been constructed, on which the ...

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150 Views  87 Downloads

Power System Operation Cost Optimal Location

Sarhan Hasan, Salah Eddin Altaher Albakoush, Mawloud Jummah Mawloud Albakoush, Abdelhamid Egzil, Salah Eltief

Electrical and Electronic Engineering, 2023, 13(2), pp. 19-23

DOI: 10.5923/j.eee.20231302.01

Open Access
Voltage control and system stability rely heavily on reactive power. In electric power systems, various Volt/VAR techniques are used to keep the voltage profile within a defined acceptable range, providing reliability, stability, and economic benefits. Reactive power has traditionally been generated ...

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57 Views  17 Downloads

Derivation of a Most Reasonable Novel Atom Model

Liu Kedian

Physical Chemistry, 2023, 12(1), pp. 1-12

DOI: 10.5923/j.pc.20231201.01

Open Access
This paper aims to present the derivation of a most reasonable novel atom model. In the novel atom model, the nucleus-electrons system is in a static equilibrium state between a universal static thermal repulsive conservative force and Coulomb force.

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108 Views  59 Downloads

Most Cited Papers

A Review of Leadership Theories, Principles and Styles and Their Relevance to Educational Management

Rose Ngozi Amanchukwu, Gloria Jones Stanley, Nwachukwu Prince Ololube

Management, 2015, 5(1), pp. 6-14

DOI: 10.5923/

Open Access

This study was motivated by the premise that no nation grows further than the quality of its educational leaders. The purpose of this theoretical debate is to examine the wider context of leadership and its effectiveness towards improving school management. This academic evaluation examines recent theoretical developments in the study of educational leadership in school management. It begins with a concise overview of the meaning and concept of leadership in terms of research, theory, and practice. This is followed by an examination of the theories of leadership, principles and styles of leadership. Each section ends with an identification of contemporary issues and possible means of amelioration. This article concludes that success is certain if the application of the leadership styles, principles and methods is properly and fully applied in school management because quality educational leadership tradition offers great opportunity to further refine educational leadership and management policies and practices by accepting and utilizing the basic principles and styles of educational leadership.

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Internet of Things: Ubiquitous Home Control and Monitoring System using Android based Smart Phone

Rajeev Piyare

International Journal of Internet of Things, 2013, 2(1), pp. 5-11

DOI: 10.5923/j.ijit.20130201.02

Open Access

This paper presents a low cost and flexible home control and monitoring system using an embedded micro-web server, with IP connectivity for accessing and controlling devices and appliances remotely using Android based Smart phone app. The proposed system does not require a dedicated server PC with respect to similar systems and offers a novel communication protocol to monitor and control the home environment with more than just the switching functionality. To demonstrate the feasibility and effectiveness of this system, devices such as light switches, power plug, temperature sensor and current sensor have been integrated with the proposed home control system.

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Aqueous Two Phase Systems for the Recovery of Biomolecules – A Review

Selvaraj Raja, Vytla Ramachandra Murty, Varadavenkatesan Thivaharan, Vinayagam Rajasekar, Vinayagam Ramesh

Science and Technology, 2011, 1(1), pp. 7-16

DOI: 10.5923/j.scit.20110101.02

Open Access

Aqueous two phase system (ATPS) is a liquid – liquid extraction method which employs two aqueous phases having applications in the field of biotechnology for the separation and purification of biological materials such as proteins, enzymes, nucleic acids, virus, antibodies and cell organelles. This review discusses the basic principles of ATPS, the factors affecting partitioning, optimization by design of experiments and the recent applications like extractive fermentation, membrane supported liquid – liquid extraction and aqueous two phase floatation. A comparative study between ATPS and other conventional methods is also discussed. The emphasis is given to PEG/salt two-phase systems because of the low cost of the system.

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Latest Special Issue - Call for Papers

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Please complete your proposal (see the template) and send it to the Assistant Editor(,

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