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Effect of Gum Arabic from Acacia senegal var. kerensis as an Improver on the Rheological Properties of Wheat Flour Dough

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Food and Nutrition sciences 2024年第4期15卷 298-312页

作者： Roseline Mwihaki Kiama Mary Omwamba George Wafula Wanjala Symon Maina Mahungu department of Dairy and Food science and Technology Egerton University Nakuru Kenya Kenya Industrial Research and Development Institute Nairobi Kenya

Dough improvers are substances with functional characteristics used in baking industry to enhance dough properties. Currently, the baking industry is faced with increasing demand for natural ingredients owing to increasing consumer awareness, thus contributing to the rising demand for natural hydrocolloids. Gum Arabic from Acacia senegal var. kerensis is a natural gum exhibiting excellent water binding and emulsification capacity. However, very little is reported on how it affects the rheological properties of wheat dough. The aim of this study was therefore, to determine the rheological properties of wheat dough with partial additions of gum Arabic as an improver. Six treatments were analyzed comprising of: flour-gum blends prepared by adding gum Arabic to wheat flour at different levels (1%, 2% and 3%), plain wheat flour (negative control), commercial bread flour and commercial chapati flour (positive controls). The rheological properties were determined using Brabender Farinograph, Brabender Extensograph and Brabender Viscograph. Results showed that addition of gum Arabic significantly (p chapati. These findings support the need to utilize gum Arabic from Acacia senegal var. kerensis as a dough improver.

关键词： Gum Arabic Improver Rheology Hydrocolloids Wheat Dough

Existence of Solutions of a Convolution Integral Equation

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Journal of Applied Mathematics and Physics 2024年第5期12卷 1835-1847页

作者： Henry Otoo Benjamin Dadzie Mensah Lewis Brew Mathematical sciences department University of Mines and Technology Tarkwa Ghana Faculty of science and Technology University of Silesia in Katowice Sosnowiec Poland

In this study, we prove the of existence of solutions of a convolution Volterra integral equation in the space of the Lebesgue integrable function on the set of positive real numbers and with the standard norm defined on it. An operator P was assigned to the convolution integral operator which was later expressed in terms of the superposition operator and the nonlinear operator. Given a ball Br belonging to the space L it was established that the operator P maps the ball into itself. The Hausdorff measure of noncompactness was then applied by first proving that given a set M∈ B r the set is bounded, closed, convex and nondecreasing. Finally, the Darbo fixed point theorem was applied on the measure obtained from the set E belonging to M. From this application, it was observed that the conditions for the Darbo fixed point theorem was satisfied. This indicated the presence of at least a fixed point for the integral equation which thereby implying the existence of solutions for the integral equation.

关键词： Volterra Integral Equation Convolution Fixed Point Existence Noncompactness

A unified fractional flow framework for predicting the liquid holdup in two-phase pipe flows

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Petroleum science 2024年第4期21卷 2614-2624页

作者： Fuqiao Bai Yingda Lu Mukul M.Sharma Hildebrand department of Petroleum and Geosystems Engineering The University of Texas at Austin

Two-phase pipe flow occurs frequently in oil & gas industry, nuclear power plants, and CCUS. Reliable calculations of gas void fraction(or liquid holdup) play a central role in two-phase pipe flow models. In this paper we apply the fractional flow theory to multiphase flow in pipes and present a unified modeling framework for predicting the fluid phase volume fractions over a broad range of pipe flow conditions. Compared to existing methods and correlations, this new framework provides a simple,approximate, and efficient way to estimate the phase volume fraction in two-phase pipe flow without invoking flow patterns. Notably, existing correlations for estimating phase volume fraction can be transformed and expressed under this modeling framework. Different fractional flow models are applicable to different flow conditions, and they demonstrate good agreement against experimental data within 5% errors when compared with an experimental database comprising of 2754 data groups from 14literature sources, covering various pipe geometries, flow patterns, fluid properties and flow *** gas void fraction predicted by the framework developed in this work can be used as inputs to reliably model the hydraulic and thermal behaviors of two-phase pipe flows.

关键词： Pipe fractional flow Liquid holdup Multiphase pipe flow Gas void fraction

Monogenic diabetes in children:An underdiagnosed and poorly managed clinical dilemma

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World Journal of Diabetes 2024年第6期15卷 1051-1059页

作者： Saptarshi Bhattacharya Joseph M Pappachan department of Endocrinology Indraprastha Apollo HospitalsDelhi 110076India department of Endocrinology and Metabolism Lancashire Teaching Hospitals NHS TrustPreston PR29HTUnited Kingdom Faculty of science Manchester Metropolitan UniversityManchester M156BHUnited Kingdom Faculty of Biology Medicine and HealthThe University of ManchesterManchester M139PLUnited Kingdom

Monogenic diabetes,constituting 1%-2%of global diabetes cases,arises from single gene defects with distinctive inheritance *** over 50 associated genetic disorders,accurate diagnoses and management of monogenic diabetes remain inadequate,underscoring insufficient clinician *** disease spectrum encompasses maturity-onset diabetes of the young(MODY),characterized by distinct genetic mutations affecting insulin secretion,and neonatal diabetes mellitus(NDM)-a heterogeneous group of severe hyperglycemic disorders in *** diabetes,autoimmune monogenic diabetes,genetic insulin resistance and lipodystrophy syndromes further diversify the monogenic diabetes landscape.A tailored approach based on phenotypic and biochemical factors to identify candidates for genetic screening is recommended for suspected cases of *** diagnosis warrants immediate molecular genetic testing for infants under six *** these genetic defects presents a unique opportunity for precision *** research aimed to develop cost-effective genetic testing methods and gene-based therapy can facilitate appropriate identification and optimize clinical *** and study of new genes offer a valuable opportunity to gain deeper insights into pancreatic cell biology and the pathogenic mechanisms underlying common forms of *** clinical review published in the recent issue of World Journal of Diabetes is such an attempt to fill-in our knowledge gap about this enigmatic disease.

关键词： Monogenic diabetes Maturity-onset diabetes of the young Neonatal diabetes Mitochondrial diabetes Insulin resistance syndromes Genetic testing Next generation sequencing

Numerical Investigation of Thermal Behavior of CNC Machine Tool and Its Effects on Dimensional Accuracy of Machined Parts

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Journal of Software Engineering and Applications 2024年第8期17卷 617-637页

作者： Erick Matezo-Ngoma Abderrazak El Ouafi Ahmed Chebak Computer science and Engineering department University of Quebec Rimouski Canada GTI Mohammed VI Polytechnic University Ben Guerir Morocco

The dimensional accuracy of machined parts is strongly influenced by the thermal behavior of machine tools (MT). Minimizing this influence represents a key objective for any modern manufacturing industry. Thermally induced positioning error compensation remains the most effective and practical method in this context. However, the efficiency of the compensation process depends on the quality of the model used to predict the thermal errors. The model should consistently reflect the relationships between temperature distribution in the MT structure and thermally induced positioning errors. A judicious choice of the number and location of temperature sensitive points to represent heat distribution is a key factor for robust thermal error modeling. Therefore, in this paper, the temperature sensitive points are selected following a structured thermomechanical analysis carried out to evaluate the effects of various temperature gradients on MT structure deformation intensity. The MT thermal behavior is first modeled using finite element method and validated by various experimentally measured temperature fields using temperature sensors and thermal imaging. MT Thermal behavior validation shows a maximum error of less than 10% when comparing the numerical estimations with the experimental results even under changing operation conditions. The numerical model is used through several series of simulations carried out using varied working condition to explore possible relationships between temperature distribution and thermal deformation characteristics to select the most appropriate temperature sensitive points that will be considered for building an empirical prediction model for thermal errors as function of MT thermal state. Validation tests achieved using an artificial neural network based simplified model confirmed the efficiency of the proposed temperature sensitive points allowing the prediction of the thermally induced errors with an accuracy greater than 90%.

关键词： CNC Machine Tool Dimensional Accuracy Thermal Errors Error Modelling Numerical Simulation Finite Element Method Artificial Neural Network Error Compensation

Omics methods predict the prognosis and treatment efficacy of chronic obstructive pulmonary disease

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Chinese Medical Journal 2024年第3期137卷 356-358页

作者： Yan Huang Juanjuan Xu Guanzhou Ma Sufei Wang Xiaojuan Yan Yang Jin Jiafu He department of Respiratory and Critical Care Medicine Xiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyangHubei 441000China department of Respiratory and Critical Care Medicine NHC Key Laboratory of Pulmonary DiseasesUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China

To the Editor:Chronic obstructive pulmonary disease(COPD)is a condition that severely endangers human *** 2018,Wang et al^([1])reported that there are approximately 100 million patients with COPD in China,with a 13.7%prevalence in people aged over 40 *** disease severity,frequency of exacerbations,and comorbidities,which are commonly(30–57%)observed in patients with COPD,are the three most crucial elements affecting the economic and societal consequences of COPD.^([2])Hospitalizations for exacerbations are the main contributors to health care *** reduce the clinical and financial burden of COPD,interventions are needed to slow the disease course,avoid exacerbations,and reduce comorbidities,such as approaches for improving the prognosis and treatment efficacy in COPD.

关键词： obstructive prognosis treatment

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Diffusion Equations of the Electric Charges and Magnetic Flux

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Journal of Electromagnetic Analysis and Applications 2024年第5期16卷 69-83页

作者： Salama Abdelhady Mohamed S. Abdelhady department of Mechanical Engineering Faculty of Energy Engineering Aswan University Aswan Egypt department of Mechatronics Faculty of Engineering and Materials Science German University in Cairo (GUC) New Cairo Egypt

Innovative definitions of the electric and magnetic diffusivities through conducting mediums and innovative diffusion equations of the electric charges and magnetic flux are verified in this article. Such innovations depend on the analogy of the governing laws of diffusion of the thermal, electrical, and magnetic energies and newly defined natures of the electric charges and magnetic flux as energy, or as electromagnetic waves, that have electric and magnetic potentials. The introduced diffusion equations of the electric charges and magnetic flux involve Laplacian operator and the introduced diffusivities. Both equations are applied to determine the electric and magnetic fields in conductors as the heat diffusion equation which is applied to determine the thermal field in steady and unsteady heat diffusion conditions. The use of electric networks for experimental modeling of thermal networks represents sufficient proof of similarity of the diffusion equations of both fields. By analysis of the diffusion phenomena of the three considered modes of energy transfer;the rates of flow of these energies are found to be directly proportional to the gradient of their volumetric concentration, or density, and the proportionality constants in such relations are the diffusivity of each energy. Such analysis leads also to find proportionality relations between the potentials of such energies and their volumetric concentrations. Validity of the introduced diffusion equations is verified by correspondence their solutions to the measurement results of the electric and magnetic fields in microwave ovens.

关键词： Diffusion Coefficient Diffusion Equation Electric Charge Magnetic Flux Electromagnetic Waves Electric Field Magnetic Field

Activation of endogenous neurogenesis and angiogenesis by basic fibroblast growth factor-chitosan gel in an adult rat model of ischemic stroke

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Neural Regeneration Research 2024年第2期19卷 409-415页

作者： Hongmei Duan Shulun Li Peng Hao Fei Hao Wen Zhao Yudan Gao Hui Qiao Yiming Gu Yang Lv Xinjie Bao Kin Chiu Kwok-Fai So Zhaoyang Yang Xiaoguang Li department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina Beijing Key Laboratory for Biomaterials and Neural Regeneration School of Engineering MedicineBeihang UniversityBeijingChina department of Epidemiology and Statistics School of Public Health and ManagementNingxia Medical UniversityYinchuanNingxia Hui Autonomous RegionChina department of Physical Education Capital University of Economics and BusinessmBeijingChina department of Neurosurgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina department of Psychology State Key Lab of Brain and Cognitive SciencesThe University of Hong KongHong Kong Special Administration RegionChina Guangdong-Hongkong-Macao Institute of CNS Regeneration Ministry of Education CNS Regeneration Collaborative Joint LaboratoryJinan UniversityGuangzhouGuangdong ProvinceChina Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory) GuangzhouGuangdong ProvinceChina department of Ophthalmology and State Key Laboratory of Brain and Cognitive sciences The University of Hong KongHong Kong Special Administration RegionChina Center for Brain science and Brain-Inspired Intelligence Guangdong-Hong Kong-Macao Greater Bay AreaGuangzhouGuangdong ProvinceChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina department of Biomedical Engineering School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina

Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation,differentiation,migration,and survival,as well as angiogenesis,in the context of brain ***,whether bioactive materials can repair the damage caused by ischemic stroke by activating endogenous neurogenesis and angiogenesis is still *** this study,we applied chitosan gel loaded with basic fibroblast growth factor to the stroke cavity 7 days after ischemic stroke in *** gel slowly released basic fibroblast growth factor,which improved the local microenvironment,activated endogenous neural stem/progenitor cells,and recruited these cells to migrate toward the penumbra and stroke cavity and subsequently differentiate into neurons,while enhancing angiogenesis in the penumbra and stroke cavity and ultimately leading to partial functional *** study revealed the mechanism by which bioactive materials repair ischemic strokes,thus providing a new strategy for the clinical application of bioactive materials in the treatment of ischemic stroke.

关键词： adult endogenous neurogenesis angiogenesis basic fibroblast growth factor-chitosan gel chitosan functional recovery ischemic stroke neural stem cell newborn neuron

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Blockchain-Based System for Secure and Efficient Cross-Border Remittances: A Potential Alternative to SWIFT

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Journal of Software Engineering and Applications 2024年第8期17卷 664-712页

作者： Omoshola S. Owolabi Emmanuel Hinneh Prince C. Uche Nathaniel T. Adeniken Jennifer A. Ohaegbulem Samuel Attakorah Oluwabukola G. Emi-Johnson Chinaza S. Belolisa Harold Nwariaku department of Data science Carolina University Winston Salem NC USA Patterson School of Business Carolina University Winston Salem NC USA department of Statistical sciences Wake Forest University Winston Salem NC USA department of Computer science Fisk University Nashville TN USA Harold & Co Procurement and Supply Chain Consulting Lagos Nigeria

This paper proposes a blockchain-based system as a secure, efficient, and cost-effective alternative to SWIFT for cross-border remittances. The current SWIFT system faces challenges, including slow settlement times, high transaction costs, and vulnerability to fraud. Leveraging blockchain technology’s decentralized, transparent, and immutable nature, the proposed system aims to address these limitations. Key features include modular architecture, implementation of microservices, and advanced cryptographic protocols. The system incorporates Proof of Stake consensus with BLS signatures, smart contract execution with dynamic pricing, and a decentralized oracle network for currency conversion. A sophisticated risk-based authentication system utilizes Bayesian networks and machine learning for enhanced security. Mathematical models are presented for critical components, including transaction validation, currency conversion, and regulatory compliance. Simulations demonstrate potential improvements in transaction speed and costs. However, challenges such as regulatory hurdles, user adoption, scalability, and integration with legacy systems must be addressed. The paper provides a comparative analysis between the proposed blockchain system and SWIFT, highlighting advantages in transaction speed, costs, and security. Mitigation strategies are proposed for key challenges. Recommendations are made for further research into scaling solutions, regulatory frameworks, and user-centric designs. The adoption of blockchain-based remittances could significantly impact the financial sector, potentially disrupting traditional models and promoting financial inclusion in underserved markets. However, successful implementation will require collaboration between blockchain innovators, financial institutions, and regulators to create an enabling environment for this transformative system.

关键词： Interoperability Tokens AML/KYC Compliance Peer-to-Peer Transfers Financial Inclusion