Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 68581 - 68610 of 1740748

Full-Text Articles in Entire DC Network

Source And Primary Factors Controlling Differential Enrichment For Helium In The Dongping Gas Field, Qaidam Basin, Xu Zhusong, Li Jian, Wang Xiaobo, Cui Huiying, Xia Yutian, Tian Jixian, Li Wanting, Chen Dawei Sep 2025

Source And Primary Factors Controlling Differential Enrichment For Helium In The Dongping Gas Field, Qaidam Basin, Xu Zhusong, Li Jian, Wang Xiaobo, Cui Huiying, Xia Yutian, Tian Jixian, Li Wanting, Chen Dawei

Coal Geology & Exploration

Background In recent years, promising helium-rich natural gas shows have been discovered in the Dongping gas field. However, the helium resources in the gas field exhibit lateral heterogeneity and vertical differential accumulation in multiple sequences, which restrict the further exploration of these resources. Methods By analyzing the lateral and vertical distribution characteristics of helium in the Dongping gas field, this study explored its origin and sources, analyzed the differences in geological backgrounds between helium-rich and helium-deficient gas reservoirs, and systematically summarized the differential enrichment pattern across different blocks within the Dongping gas field.Results and Conclusions In the Dongping gas …

Go to article

Water Filling Intensity Assessment Of A Coal Seam Roof In The Dahaize Coal Mine, Northern Ordos Basin, Liu Xi, Ding Xiang, Huang Haiyu, Li Zhaoyang, Li Zhe, Zheng Sheng Sep 2025

Water Filling Intensity Assessment Of A Coal Seam Roof In The Dahaize Coal Mine, Northern Ordos Basin, Liu Xi, Ding Xiang, Huang Haiyu, Li Zhaoyang, Li Zhe, Zheng Sheng

Coal Geology & Exploration

Background Assessing water filling intensity in coal seam floors lays a foundation for the prevention and control of water hazards in mines. However, in the Jurassic coalfield in the northern Ordos Basin, complex hydrogeological structures and sedimentary heterogeneity pose severe challenges to traditional evaluation methods. Methods This study investigated the water hazard characteristics in the superimposed aquifers of the Jurassic Yan’an and Zhiluo formations in the Dahaize Coal Mine in northern Shaanxi. The purpose is to establish a zoning and assessment system of water filling intensity that is suitable for continental sedimentary settings and to provide a scientific basis for …

Go to article

A Rare Incidence Of Pseudoangiomatous Stromal Hyperplasia (Pash) In A Senior Adult Male: A Case Report Highlighting A Novel Presentation, Gabriel Baccam Unkrich, Jennifer L. Somerville, Vincent J. Reid Sep 2025

A Rare Incidence Of Pseudoangiomatous Stromal Hyperplasia (Pash) In A Senior Adult Male: A Case Report Highlighting A Novel Presentation, Gabriel Baccam Unkrich, Jennifer L. Somerville, Vincent J. Reid

Student Publications

Background: Pseudoangiomatous stromal hyperplasia (PASH) is a rare benign mesenchymal lesion of the breast that is most commonly seen in young premenopausal and perimenopausal females and found in approximately 23% of breast specimens. In rare cases, PASH has been reported exclusively in young adult males and is associated with gynecomastia. The prevalence of benign breast masses in men with gynecomastia ranges from approximately 23.8-47.4% and peaks between the ages of 50 and 80. PASH frequently presents as a palpable mass or is incidentally identified through imaging and microscopy. Due to its varied and infrequent presentations, PASH is often mistaken for …

Go to article

Egalitarianism: A Hermeneutical, Biblical-Theological And Logical Evaluation, Martin Nyanzu Sep 2025

Egalitarianism: A Hermeneutical, Biblical-Theological And Logical Evaluation, Martin Nyanzu

Doctoral Dissertations and Projects

There are several sensitive and polarized issues confronting the church in our day, one of them has turned egalitarians and complementarians into warring camps – men and women’s role in the home, church, and society. The last twenty years have seen an intensification in egalitarian publications. However, a critical examination of egalitarian theology in some major works presents a concerning deficit in adhering to the principles of biblical theology, hermeneutics, and logic. This literary research is a biblical canonical survey of egalitarian theology based on existing scholarly perspectives among North American evangelicals. It is apparent that egalitarian biblical theology lacks …

Go to article

Working With Different Generations In The Post-Covid Remote Workplace: The Millennial Perspective, Rhys Morgan Alexander Sep 2025

Working With Different Generations In The Post-Covid Remote Workplace: The Millennial Perspective, Rhys Morgan Alexander

Doctoral Dissertations and Projects

Generational theory proposes that generations are inherently different from one another based on the events that occur within their lifetimes at various developmental stages. These differences have been studied in many contexts, including within the work environment. As older generations continue to remain employed, and with the shift to remote work post-COVID 19, this topic remains an important concentration for developmental and organizational researchers. The differences between generations have been found to impact on job satisfaction and general work value priorities to varying degrees. Based on this, a literature review was conducted followed by a phenomenological, interview-based study to explore …

Go to article

“The Church Is Not Going To Close Until God Closes It”: Survival Of The Neighborhood Church, Karen Kay Warren Sep 2025

“The Church Is Not Going To Close Until God Closes It”: Survival Of The Neighborhood Church, Karen Kay Warren

Doctoral Dissertations and Projects

There are churches in working-class neighborhoods throughout America that were built by the community’s residents. Some of these churches are close to or more than 100 years old and still function as places of worship. Riverdale Baptist Church in Roanoke and Fairview Christian in Lynchburg are two such churches. During the late twentieth and early twenty-first centuries something changed about the Riverdale Farm and Fairview Heights neighborhoods. New neighbors arrived who were not interested in attending these corner churches, or in having close-knit relationships with their neighbors. The children of the older members had moved to other neighborhoods, and although …

Go to article

Engaging The Hindu Community Of Loudoun County, Va With The Gospel Of Jesus Christ: An Evangelism Course For Telugu Christian Fellowship Church, Ravinder Rufus Bhimanpalli Sep 2025

Engaging The Hindu Community Of Loudoun County, Va With The Gospel Of Jesus Christ: An Evangelism Course For Telugu Christian Fellowship Church, Ravinder Rufus Bhimanpalli

Doctoral Dissertations and Projects

This Doctor of Ministry project addressed the lack of effective evangelism toward the Hindu community by the Telugu Christian Fellowship Church (TCFC) in Ashburn, Virginia. Located 35 miles from Washington, D.C., TCFC serves a suburban congregation of approximately 300 members, with an average weekly attendance of 250. The church is located in Loudoun County, one of America’s most diverse and affluent regions, home to over 44,000 Asian Indians and an estimated 18,000 Hindus. Despite this, the church’s outreach efforts had remained scattered and underdeveloped. Most church members lacked cultural sensitivity, feared offending them, or simply lacked the confidence to engage …

Go to article

A Phenomenological Study Of Overcoming School Experiences Of Disability-Related Stigma To Gain Competitive Employment For Individuals With Learning Disabilities, Katherine Lamont Sep 2025

A Phenomenological Study Of Overcoming School Experiences Of Disability-Related Stigma To Gain Competitive Employment For Individuals With Learning Disabilities, Katherine Lamont

Doctoral Dissertations and Projects

The purpose of this hermeneutical phenomenological study was to interpret the experiences of overcoming disability-related stigma to gain competitive employment for individuals with learning disabilities (LDs) who have previously received special education services in public schools in the United States. Goffman’s stigma theory framed the investigation of the research question: What are the lived experiences of individuals with LDs who have received special education services in public school settings with overcoming disability-related stigma to gain competitive employment? This study was conducted with 12 participants, who each received special education services in public schools in the United States for a specific …

Go to article

Qualitative Evaluation Of Eeg Neurofeedback For Anxiety In Adults, Leah M. Jones Sep 2025

Qualitative Evaluation Of Eeg Neurofeedback For Anxiety In Adults, Leah M. Jones

Doctoral Dissertations and Projects

Anxiety is one of the most prevalent mental health disorders globally, yet many treatment options are inaccessible, ineffective for some, or lack long-term efficacy. One treatment for with substantial research support is neurofeedback, though it remains categorized as an experimental treatment and is underutilized in clinical practice. The qualitative phenomenological study explored the lived experiences of adults who received neurofeedback treatment for anxiety. The purpose was to understand participants’ perceptions of neurofeedback’s efficacy and the interactive effects of neurofeedback and psychotherapy. Data were collected from two Oregon clinics that offer Neurofeedback and from students at Liberty University. An open-ended survey …

Go to article

Psychological Safety And Its Impact On Teacher And Staff Morale, Yvonne R. Crace Sep 2025

Psychological Safety And Its Impact On Teacher And Staff Morale, Yvonne R. Crace

Doctoral Dissertations and Projects

Psychological safety is a concept that has been around since 1965. Psychological safety exists when employees feel safe to share their ideas and opinions without fear of retaliation, retribution, or belittlement. Studies on psychological safety have mainly focused on businesses and corporations and work team learning behaviors. In recent years, it has become evident that psychological safety is needed in additional types of industries, including all stages of education, from primary to graduate school. In education, teachers and staff often feel isolated and have concerns about voicing their opinions which creates relational stress and conflict, thus lowering staff morale. This …

Go to article

A Study Of The Relationship Between The Stress Responses From Rehearsal Preparations For Music Ensemble Performance Evaluations And Performing Arts Adolescents’ Working Memory, Gregory Thomas Minter Sep 2025

A Study Of The Relationship Between The Stress Responses From Rehearsal Preparations For Music Ensemble Performance Evaluations And Performing Arts Adolescents’ Working Memory, Gregory Thomas Minter

Doctoral Dissertations and Projects

The organization of memory retrieval is vital to the association between stress responses and negative educational achievements. These stress responses offer an opportunity to study the harmful consequences of prolonged strain on the developing brain, which may impair emotional restraint, self-control, and cognitive development. However, little research considers the fundamental notions of how stress responses from rehearsals for music ensemble performance assessments impact adolescent working memory. This mixed-methods study explored how rehearsal-related stress in music ensemble settings may affect adolescents' working memory. Participants included high school students in grades nine through 12 who participated in performing arts band ensembles. The …

Go to article

Exploring The Difference In Perceived Organizational Justice Between Remote And Traditional Workers And Relationships Between Perceived Organizational Justice And Job Satisfaction, Ryan Mabry Sep 2025

Exploring The Difference In Perceived Organizational Justice Between Remote And Traditional Workers And Relationships Between Perceived Organizational Justice And Job Satisfaction, Ryan Mabry

Doctoral Dissertations and Projects

Organizations struggle to achieve holistic job satisfaction, as remote workers often feel excluded and traditional workers frequently feel overworked. This quantitative study explored the perceived differences in organizational justice between remote and traditional workers. It also investigated the relationship between organizational justice and job satisfaction within both working environments. A sample size of 176 participants completed a 35-item Likert inventory covering demographics, working environment, job satisfaction, and organizational justice. An independent samples t-test was used to measure the differences in organizational justice between remote and traditional workers. A Pearson correlation examined the relationship between organizational justice and job satisfaction in …

Go to article

Observing The Dynamics: Black Labour And Cultural Taxation, Kay Coates Sep 2025

Observing The Dynamics: Black Labour And Cultural Taxation, Kay Coates

University Libraries: Faculty Presentations

Associatively, the Dynamic Social Impact theory (DSIT) can effectively demonstrate the convergence of labor, culture and service in connection with Black labor and cultural taxation within the productivity sector. One of the four patterns identified in DSIT indicates that minority groups within a larger culture can be found to be both isolated and vibrant. This isolation allows minority influence to persist. To such an extent that certain marginalized, underrepresented people in the productivity field often face underlying stressors that disproportionately affect their health and overall well-being. This lightning round presentation takes an appreciative enquiry perspective to promote the development of …

Go to article

Relationship Between Alcohol Use And Obesity In Us Adults Aged 20 To 79, Chinwendu Echefu, Ramona Stone Sep 2025

Relationship Between Alcohol Use And Obesity In Us Adults Aged 20 To 79, Chinwendu Echefu, Ramona Stone

Public Health Sciences Faculty Publications

Purpose: This is a secondary data analysis carried out to determine the asso- ciation between alcohol use and obesity (BMI) in US adults aged 20 to 79 while adjusting for confounding factors that are known to affect obesity. Methods: The 2017-2018 National Health and Nutrition Examination Survey (NHANES) was utilized to provide a weighted sample of 16,548 adults between the ages of 20 and 79 with valid information for the BMI and for the average alcohol con- sumed per day over the past 12 months. Multivariable regression was done to determine the association between obesity, measured by the Body Mass …

Go to article

Fractional-Order Adaptive Terminal Sliding Mode Control For Synchronization Of Uncertain Chaotic Memristive Chua's Circuit, Dorukhan Asteki̇n, Fati̇h Adigüzel Sep 2025

Fractional-Order Adaptive Terminal Sliding Mode Control For Synchronization Of Uncertain Chaotic Memristive Chua's Circuit, Dorukhan Asteki̇n, Fati̇h Adigüzel

Turkish Journal of Electrical Engineering and Computer Sciences

Memristive-based chaotic dynamical systems exhibit chaotic behavior with signals of unpredictable complex ity, making it difficult to achieve full synchronization in master-slave systems. Therefore, an advanced synchronization method is required to overcome the chaotic model uncertainties and external disturbances. In this study, a fractional order terminal sliding mode synchronization is proposed for the uncertain memristive chaotic Chua’s circuit. After presenting the integer-order model of the chaotic memristive Chua’s circuit, a fractional-order sliding surface-based non linear synchronization structure, incorporating the fractional derivative operator, is designed. The convergence of the synchronization closed-loop system is proven using Lyapunov theory. To demonstrate its effectiveness …

Go to article

Industries, Self-Rated Health, And Status Characteristics: An Exploration Of Health In Industries At The Intersection Of Race/Ethnicity, Gender, And Disability, Emmanuel Legarreta Sep 2025

Industries, Self-Rated Health, And Status Characteristics: An Exploration Of Health In Industries At The Intersection Of Race/Ethnicity, Gender, And Disability, Emmanuel Legarreta

Dissertations and Theses

While industries, occupations, and health outcomes have been widely studied, research has neglected self-rated health (SRH) and the intersectionality of different status characteristics in various industries. Using an IPUMS version of the Current Population Survey, this study explores the possible relationships between industries and SRH. More specifically, it seeks to find if workers' disability status, racial minority status, or gender moderates (i.e., differentiates) the relationship between their industry and SRH. Findings show that certain industries are significant predictors of SRH, and that women with disabilities working in Mining and Construction, and Business and Repair Service have significantly worse SRH than …

Go to article

Quality Improvement Project Empowering Nursing Instructors: Faculty Self-Efficacy & Consistency In Simulation Grading, April Guerin Sep 2025

Quality Improvement Project Empowering Nursing Instructors: Faculty Self-Efficacy & Consistency In Simulation Grading, April Guerin

Doctor of Nursing Practice Projects

This quality improvement (QI) project aims to evaluate the effectiveness of structured training on the Creighton Competency Evaluation Instrument (C-CEI) in improving nursing faculty self-efficacy and grading consistency in clinical student evaluations. Inconsistent clinical grading practices among nursing faculty create barriers to reliable competency evaluation and undermine student outcomes. Guided by the Donabedian Model and Lewin’s Change Theory, with implementation structured by the Plan-Do-Study-Act (PDSA) cycle, a quasi-experimental pre-post intervention design was used. Participants include nursing faculty responsible for clinical evaluations, who completed structured C-CEI training delivered via self-paced modules in a learning management system. Faculty self-efficacy was measured using …

Go to article

On The Usages Of Green’S Functıon On Tıme Scales, Firat University, Elazig, Turkiye, Ayse Cigdem Yar, Emrah Yılmaz, Sertac Goktas, Mersin University, Mersin, Turkiye Sep 2025

On The Usages Of Green’S Functıon On Tıme Scales, Firat University, Elazig, Turkiye, Ayse Cigdem Yar, Emrah Yılmaz, Sertac Goktas, Mersin University, Mersin, Turkiye

Baku Mathematical Journal

We deal with Green’s functions (Green’s-f ) for 2-nd order dynamic boundary value problems (BV-P’s) on T. Green’s function is established on T for different situations to solve constructed problems. These results show how important Green’s-f is for mathematical physics on T.

Go to article

A Combined Dld-Inar(P) Model For Overdispersed Count Data, Norbert Zongo University, Koudougou, Burkina Faso, Tegawende Martin Kabore, O. Jean-Etienne Ouedraogo Sep 2025

A Combined Dld-Inar(P) Model For Overdispersed Count Data, Norbert Zongo University, Koudougou, Burkina Faso, Tegawende Martin Kabore, O. Jean-Etienne Ouedraogo

Baku Mathematical Journal

In this paper, we develop a combined order p integer-valued autoregressive process whose marginal distribution follows the discrete Lindley distribution (DLD) [1]. Referred to as the CDLD-INAR(p) process, this model is particularly suited for modeling count time series exhibiting overdispersion. Formulation of this model is based on the binomial thinning operator introduced by Steutel [8]. Several conditional theoretical properties of the process are established, and its parameters are estimated using the conditional maximum likelihood method. The asymptotic properties of the resulting estimators are also investigated. Finally, the practical relevance of the proposed model is demonstrated through an application to real …

Go to article

On The Approximation Of Identity In Additive-Invariant Banach Function Spaces, Azerbaijan State Oil And Industry University, Baku, Azerbaijan, Migdad I. Ismailov, Chinara M. Gasanova, Ganja State University, Ganja, Azerbaijan Sep 2025

On The Approximation Of Identity In Additive-Invariant Banach Function Spaces, Azerbaijan State Oil And Industry University, Baku, Azerbaijan, Migdad I. Ismailov, Chinara M. Gasanova, Ganja State University, Ganja, Azerbaijan

Baku Mathematical Journal

Analog of Korovkin type theorem for the sequence of convolution operators in the subspaces of additive-invariant Banach spaces generated by the shift operator is obtained in this work. Convergence to the identity of the sequence of convolution operators with a positive approximate identity is proved. We also prove the convergence to the identity of Steklov operators in Marcinkiewicz spaces.

Go to article

Wavelet-Based Estimation Of Long-Memory Parameter In Stochastic Volatility Models Using A Robust Log-Periodogram, University Of Kara, Kara, Togo, Manganaw Ndaam, Tchilabalo Abozou Kpanzou, Edoh Katchekpele Sep 2025

Wavelet-Based Estimation Of Long-Memory Parameter In Stochastic Volatility Models Using A Robust Log-Periodogram, University Of Kara, Kara, Togo, Manganaw Ndaam, Tchilabalo Abozou Kpanzou, Edoh Katchekpele

Baku Mathematical Journal

In this paper, we propose a novel method for estimating the long-memory parameter in time series. By combining the multi-resolution framework of wavelets with the robustness of the least absolute deviations criterion, we introduce a periodogram providing a robust alternative to classical methods in the presence of non-Gaussian noise. Incorporating this periodogram into a log-periodogram regression, we develop a new estimator. Simulation studies demonstrate that our estimator outperforms the Geweke and PorterHudak (GPH) and wavelet-based log-periodogram (WBLP) estimators, particularly in terms of mean squared error, across various sample sizes and parameter configurations.

Go to article

On One Problem Of Feedback Control Of A Heating System, Azerbaijan State Oil And Industry University, Baku, Azerbaijan, Vagif Abdullayev Sep 2025

On One Problem Of Feedback Control Of A Heating System, Azerbaijan State Oil And Industry University, Baku, Azerbaijan, Vagif Abdullayev

Baku Mathematical Journal

We consider a problem of controlling a heating device intended for heating a coolant supplying heat to a closed system is considered. Feedback is used to control the process, in which information about the process state is continuously or discretely received from individual points of the device, where temperature sensors are installed. The mathematical model of the controlled process in both cases is described by a point-loaded first-order hyperbolic equation. Formulas for the gradient of the objective functional of the problem are obtained, allowing the use of first-order numerical optimization methods for solving problems. Numerical experiments are carried out using …

Go to article

On B−Repdigits Which Are Sums Of Three Narayana Numbers With A Consequence, University Of Kara, Kara, Togo, Pagdame Tiebekabe, S´Emou Diouf Cheikh, Anta Diop University, Dakar, Senegal, Salifou Nikiema, L´Ed´Ea Bernard Ou´Edraogo University (Ulbo), Somiaga, Burkina Faso Sep 2025

On B−Repdigits Which Are Sums Of Three Narayana Numbers With A Consequence, University Of Kara, Kara, Togo, Pagdame Tiebekabe, S´Emou Diouf Cheikh, Anta Diop University, Dakar, Senegal, Salifou Nikiema, L´Ed´Ea Bernard Ou´Edraogo University (Ulbo), Somiaga, Burkina Faso

Baku Mathematical Journal

The sequence known as Narayana’s cows sequence is defined by the thirdorder linear recurrence relation Nn = Nn−1 + Nn−3, for n ≥ 3, with the initial values given by N0 = N1 = N2 = 1. In this paper, we explore the class of numbers known as brepdigits that can be represented as the sum of three terms from this sequence. Specifically, we aim to identify all such numbers for bases in the range 2 ≤ b ≤ 30. Our approach relies on precise lower bounds for linear forms in logarithms, along with an enhanced version of the Baker-Davenport …

Go to article

Probabilistic Intervals Around Population Forecasts: A New Approach With A Subnational Example Using Washington State Counties, David A. Swanson, Jeff Tayman Sep 2025

Probabilistic Intervals Around Population Forecasts: A New Approach With A Subnational Example Using Washington State Counties, David A. Swanson, Jeff Tayman

Publications, Reports and Presentations

Population forecasts produced by governments at all levels are used in the public sector, the private sector, and by researchers. They have been primarily produced using deterministic methods. This paper shows how a method for producing measures of uncertainty can be applied to existing subnational population forecasts while meeting several important criteria, including the concept of utility. The paper includes an assessment of the efficacy of the method by: (1) examining the change in uncertainty intervals it produces by population size and population growth rate; and (2) comparing the width and temporal change of the uncertainty intervals it produces to …

Go to article

Prokaryotic Expression Of Recombinant Plectasin Optimization Of High-Density Fermentation Conditions And Antibacterial Activity, Su Yan, Li Rong Sep 2025

Prokaryotic Expression Of Recombinant Plectasin Optimization Of High-Density Fermentation Conditions And Antibacterial Activity, Su Yan, Li Rong

Food and Machinery

[Objective] To construct a recombinant strain expressing the antimicrobial peptide Plectasin, optimize the high-density fermentation conditions of the recombinant strain, and evaluate the antibacterial activity of the purified recombinant peptide produced under optimized conditions. [Methods] To improve soluble expression of the target protein, the plectasin gene was synthesized and optimized based on codon preference of the prokaryotic expression system with signal peptide deletion. The optimized gene was cloned into the pET32a(+) expression vector to construct the recombinant plasmid pET 32a-plectasin, which was transformed into Escherichia coli BL21(DE3)/pLysS competent cells. Single-factor and orthogonal experiments were designed to optimize the parameters of …

Go to article

The Cowl - V. 89 N. 2 - September 25, 2025 Sep 2025

The Cowl - V. 89 N. 2 - September 25, 2025

The Cowl

The Cowl - student newspaper of Providence College. Vol. 89 No. 2 - September 25, 2025. 16 pages.

Go to article

Effects Of Thermal Treatments And High-Pressure Defatting Processes On The Quality And Functional Characteristics Of Rice Bran, Chen Yun, Han Xiaomiao, Wu Suxi, Cai Yongjian, Miao Yongjun Sep 2025

Effects Of Thermal Treatments And High-Pressure Defatting Processes On The Quality And Functional Characteristics Of Rice Bran, Chen Yun, Han Xiaomiao, Wu Suxi, Cai Yongjian, Miao Yongjun

Food and Machinery

[Objective] To investigate the effects of thermal treatments (dry heat, microwave, and high-temperature high-pressure steam) and high-pressure defatting processes (supercritical CO2 extraction and ultrasound-assisted subcritical n-butane extraction) on the quality of rice bran, aiming to improve its stability and potential for high-value utilization. [Methods] Rice bran was pretreated by dry heat, microwave, and high-temperature high-pressure steam, combined with two high-pressure defatting techniques. The effects on lipase activity, storage stability, and physicochemical properties of rice bran were systematically analyzed. [Results] High-temperature high-pressure steam treatment (121℃, 20 min) significantly reduced lipase activity to 19.87 mg/g and effectively inhibited the accumulation of free …

Go to article

Research On Tomato Comprehensive Quality Detection Method Based On Improved U-Net And Iwoa-Lssvm, Shi Lichun, Bian Keke, Wang Songwei, Wang Zhizhong Sep 2025

Research On Tomato Comprehensive Quality Detection Method Based On Improved U-Net And Iwoa-Lssvm, Shi Lichun, Bian Keke, Wang Songwei, Wang Zhizhong

Food and Machinery

[Objective] To improve the detection accuracy and efficiency of non-destructive testing methods for tomatoes in food production. [Methods] Based on an automatic tomato sorting system, a comprehensive quality detection method for tomatoes was proposed, integrating machine vision, a multi-scale residual attention U-Net model, an improved whale optimization algorithm (IWOA), and a least squares support vector machine (LSSVM). Tomato image information was collected using machine vision. Tomato images were segmented using the multi-scale residual attention U-Net model to measure fruit diameter parameters. The parameters of the LSSVM model were optimized using an IWOA with chaotic mapping and an adaptive convergence factor …

Go to article

Gamma-Aminobutyric Acid Biosynthesis Via Fermentation Using Lactiplantibacillus Plantarum With Optimized Glutamate Decarboxylase Expression Conditions, Yang Shengyuan, Fan Genjun, Liu Yiying Sep 2025

Gamma-Aminobutyric Acid Biosynthesis Via Fermentation Using Lactiplantibacillus Plantarum With Optimized Glutamate Decarboxylase Expression Conditions, Yang Shengyuan, Fan Genjun, Liu Yiying

Food and Machinery

[Objective] To enhance the biosynthesis efficiency of gamma-aminobutyric acid (GABA) via submerged fermentation by Lactiplantibacillus plantarum. [Methods] With the activity of whole-cell glutamate decarboxylase (GAD) as an evaluation indicator, the GAD production conditions are optimized through systematic investigation of both fermentation conditions and culture media, and the fermentation process for GABA production is subsequently established based on these optimized conditions. [Results] The optimal fermentation conditions for GAD production by Lpb.plantarum Y-2 are static culture at 30℃ for 48 h in a modified MRS (MMRS) medium containing 10 g/L peptone, 10 g/L beef extract, 5 g/L yeast extract, 10 g/L sucrose, …

Go to article

The Impact Of Scan Spans On The Accuracy Of Three Intraoral Scanners: A Comparative Study, Lynn Labban, Louis Hardan, Cynthia Kassis Sep 2025

The Impact Of Scan Spans On The Accuracy Of Three Intraoral Scanners: A Comparative Study, Lynn Labban, Louis Hardan, Cynthia Kassis

International Arab Journal of Dentistry

Objectives: In modern dentistry, intraoral scanners (IOSs) have become indispensable tools for capturing accurate digital impressions of patients’ dentition, facilitating the design and fabrication of various dental restorations. However, the accuracy of these scanners can be influenced by factors such as scan span, which refers to the extent of the area scanned during impression taking. Understanding the impact of scan span on scanner accuracy is crucial for optimizing clinical outcomes and ensuring the reliability of digital models. The aim of this study was to evaluate and compare the accuracy, encompassing both trueness and precision, of intraoral scanners (IOSs) across different …

Go to article

First Prev Next Last