Al-Bahir Journal for Engineering and Pure Sciences

Twitter is a social media platform where users can post, read, and interact with 'tweets'. Third party like corporate
organization can take advantage of this huge information by collecting data about their customers' opinions. The use of
emoticons on social media and the emotions expressed through them are the subjects of this research paper. The purpose
of this paper is to present a model for analyzing emotional responses to real-life Twitter data. The proposed model is
based on supervised machine learning algorithms and data on has been collected through crawler “TWEEPY” for
empirical analysis. Collected data is pre-processed, pruned and fed into various supervised models. Each tweet is
assigned to sentiment based on the user's emotions, positive, negative, or neutral.

In this research, we proposed coupling the Laplace transform method and the homotopy Perturbation Method
(LHPM). We employed the fusion of the Laplace method to make up for the shortcomings of other semi-analytical
approaches like the homotopy perturbation method, variation iteration method, and the Adomian decomposition
method. We aim to obtain an approximate and semi-analytic solution of the n-dimensional system of nonlinear partial
differential equations. N-dimensional partial differential equations with nonlinear terms are known as nonlinear partial
differential equations. They have been used to solve mathematical problems like the Poincare conjecture and the Calabi-
Yau conjecture and describe physical systems, from gravity to fluid dynamics. Therefore, we proffer a semi-analytic
solution in the form of a Taylor multivariate series of displacements x, y, and time t using the proposed method. A sideby-
side comparison was carried out to compare the exact solution with the new solution using 3-dimensional graphs, and
thus the graph analysis followed. Results show excellent agreement, and the emergence of this method as a viable
alternative demonstrates its viability by requiring fewer computations and being much easier and more convenient than
others, making it suitable for widespread use in engineering as well

The purpose of this work is to introduce and study a generalization of the cancellation (weak cancellation) of modules
to acts. Then some notions related of modules was extend to arbitrary acts. Several statements that are equivalent to the
cancellation (weak cancellation) property have been studied. Some characterizations of cancellation (weak cancellation)
acts was presented and derive many of their properties. Using the condition of multiplication acts various results of
cancellation (weak cancellation) acts are investigated.

Background: Ipomoea cairica (L.) sweet Convolvulaceae also known as morning glory or ‘Railway creeper’ is a traditional
herb that has been used in treating various diseases throughout the world. Some of the reported pharmacological
activities include antioxidant, anti-inflammatory, and antiviral. Cadmium is a toxic metal that can cause both hearts and
testicular damage and its major mechanism is oxidative stress. Objective: Therefore, this study was done to investigate
the effect of I. cairica leaf extract (ICE) against cadmium chloride-induced hearts and testicular damage in Wistar rats.
Materials and Methods: Twenty male Wistar rats were divided into 4 groups of 5 animals each. Group I: Control
(administered distilled water), Group II (administered 35 mg/kg CdCl2 intraperitoneally), group III (orally administered
100 mg/kg ICE and CdCl2), group IV (orally administered 100 mg/kg, I. cairica and CdCl2). Animals were sacrificed via
cervical dislocation 24 h after the last administration. The hearts and testes were collected and processed for biochemical
assays. Biochemical assays evaluated were Malondialdehyde (MDA), reduced glutathione (GSH), catalase (CAT), superoxide
dismutase (SOD), and Glutathione-S-transferase (GST). Results: Results showed that Cd exposure significantly
increases the level of MDA, decreased the concentration of GSH (non-enzymatic antioxidant), and decreased the activity
of CAT, SOD, and GST (enzymatic antioxidants). Treatment with ICE prevented the alteration of redox status by CdCl2,
as observed in the significant decrease in MDA concentration, and increase in GSH concentration when compared with
the animals in the untreated groups. In addition, treatment with I. cairica also caused a significant increase in the activity
of CAT, SOD, and GST as compared to the untreated group (P < 0.05). Conclusions: In conclusion, I. cairica extract was
protective against cadmium-induced oxidative damage in rat hearts and testes. This activity can be linked to the presence
of antioxidant phytochemicals present in the plant

The effect of thermal conductivity was studied on the composites prepared before and after reinforcement with
different weight fractions (10, 20, 30, 40, 50, 60 wt %), using a Disc Lee's device, and the dispersion of the filler was
studied by morphological analysis of the complexes using scanning electron microscopy (SEM). The (SEM) of glass
composite powders, showed a smooth surface with a chance of forming very few voids, clusters and blisters on the
surface of the sample, which increased with the increase of the weight fractions of the filled powder. While the composites
filled with carbon powders show smooth and free from micro-cracks with the chance of formation of some flakes
on the surface, whereby, as the weight concentrations of powders rise, transform to rough surface with micro-cracks and
voids which revealing that the surface was porous. The results also showed that adding these powders to the epoxy resin
has an effect on the thermal conductivity of the prepared composites, implying that there is a direct relationship between
the thermal conductivity as a function of the weight ratios of the reinforcing materials, as the thermal conductivity values
increase with the increase in the weight ratios for all samples, but differ from one reinforcement to another, with the
highest value being at a weight ratio of (60 wt %), which raised the conductivity by (34.511% ± 0.031) and
(26.488% ± 0.045) for glass and carbon composites, respectively, in comparison to pure epoxy resin. The results also
revealed that the thermal conductivity of epoxy glass composites is greater than that of carbon composites at all reinforcing
material weight fractions

This study investigates the feasibility of using silicon carbide-based layered surface acoustic wave (SAW) devices in
acousto-optic applications. The acousto-optic properties of the temperature-stable layered structure TeO3/SiC/128oY-X
LiNbO3 are investigated through theoretical analysis. This analysis includes the evaluation of key parameters such as the
overlap integral, figure of merit, and diffraction efficiency. The SAW propagation characteristics and field profiles
required for these calculations are obtained using SAW software. Results show that the layered structure has high
diffraction efficiency of nearly 96% and a promising value for the acousto-optic figure of merit, indicating potential use
in low driving power acousto-optic devices. The study concludes that the 3CeSiC-based layered structure possesses
excellent acousto-optic properties and has potential for use in acousto-optic devices that can withstand harsh environmental
conditions

The emergence of the BurgerseHuxley equation (which involves the famous Burgers equation and the Huxley
equation) to predict response systems, dispersion moves, and nerve charge transmission in traffic patterns, sound,
turbulent conditions theory, hydrodynamics has attracted the attention of scientists to provide reliable and efficient
solutions to the problem.
The present work employed the Tanh method to solve the BurgerseHuxley nonlinear partial differential equations. In
contrast to previous results with complicated and laborious solution characteristics, this method is accurate, efficient, and
requires little computational work. In showing this, we solved four BurgerseHuxley case study problems using the Tanh
approach and obtained the exact solution. The solutions of the four cases were presented graphically. In addition, the
findings demonstrate that the Tanh method is an effective and robust approach for constructing the exact solution of
nonlinear differential equations

With the rapid development of 3D printing technology, its application scope has involved various fields such as
aerospace, the automobile industry, medical treatment, food and others. The US Food and Drug Administration (FDA)
approved the release of “levetiracetam instant tablets,” made with 3D printing technology. This means that 3D printing
could be used to mass-produce drugs. This article reviews the principles, advantages, and challenges of 3D drug printing
technologies: stereolithography, inkjet printing, powder-liquid bonding, and fused deposition, and looks forward to
their future development in the preparation of solid preparations of medicine. With the continuous development of
computer control, 3D printing industrialization and medicine excipients, and other technical fields, the application of 3D
printing technology in the pharmaceutical industry will become more and more extensive