Digital Commons Network^™

Integrating Tacit And Explicit Knowledge Across Construction Projects: A Qualitative Evidence Synthesis Of Knowledge Transfer, Lessons Learned, And Organizational Learning, Felix M. Delmonte

Mechanical and Civil Engineering Faculty Publications

Abstract

Construction projects rely on knowledge distributed among temporary, multidisciplinary teams, firms, and lifecycle stages. Practical judgment often remains with experienced participants, while written accounts may omit the conditions and reasoning needed for later use. This research examines how construction scholarship explains the movement of project knowledge from capture through sharing and retrieval to reuse on another project. It treats these activities as distinct, and considers tacit expertise alongside explicit records, with attention to who contributes knowledge, who needs it, and where it must travel. The planned approach is a qualitative synthesis of published, peer-reviewed research from 2022–2026. The available …

Source Page Evaluation Of Local Rag Retrieval For Engineering Safety: Implications For Mechanical And Civil Engineering, Sherif Sorour, Areej El Mufti, Mohamed Nabawy, Anwar Sahbel

Civil Engineering

Industrial safety question answering requires access to the exact source material that supports an answer, not merely a related document. This study evaluates the retrieval stage of a local retrieval-augmented generation (RAG) system at the source page level. Eighteen documents on lockout/tagout, machine guarding, and personal protective equipment were prepared in raw, cleaned, and metadata-enriched forms. Best Matching 25 (BM25), latent semantic analysis (LSA), and reciprocal rank fusion (RRF) hybrid retrieval were tested on 54 questions: 36 answerable, 12 safety-related but unsupported, and 6 outside the covered topics. Raw BM25 achieved the highest mean reciprocal rank (0.492) and Hit@5 (0.722), …

Sensor Technologies And Integration Approaches For Smart Prosthetic Health Monitoring: A State-Of-The-Art Narrative Review, Mohammed Q. Abdulhasan, Jumaa S. Chiad, Firas M. Abdulghani

AUIQ Technical Engineering Science

Transforming the residual-limb-socket interface from an intermittently evaluated ``black box'' into a monitored clinical setting that permits objective fit assessment, early danger detection, and better long-term prosthesis use is the aim of smart prosthetic health monitoring. This narrative exploration compiles peer-reviewed literature on sensing technology and, importantly, integration strategies that affect practical usability. Iterative searches by keywords and citation linking across major engineering and biomedical journal platforms were used to find literature, giving priority to current contributions while preserving important foundational works. The chosen studies were examined and classified based on (i) sensing modality (pressure/shear, temperature-humidity microclimate, chemical and perfusion-related …

Synthesis Protocols For Solar Cell Materials From Laboratory Fabrication To Scalable Manufacturing, Ayad Abbood Abdulhasan, A. M. Mustafa, Mohanad Muzahem Khalaf

AUIQ Technical Engineering Science

Photovoltaic (PV) technology has evolved over seven decades from single-crystal silicon cells with modest efficiencies to a diverse portfolio of silicon, thin-film, and emerging solar-cell architectures approaching or exceeding thermodynamic single-junction limits when combined in tandem configurations. Device efficiency and long-term operational stability are governed not only by the choice of absorber material but, critically, by the synthesis protocol used to fabricate it the crystal-growth method, deposition technique, solvent system, thermal budget, and interface-engineering strategy all leave a lasting imprint on morphology, defect density, and carrier transport. This review provides a comprehensive, protocol-centered survey of solar-cell synthesis across three technology …

Research On The Early Warning Model Of Online Public Opinion Risk Based On Cross-Social-Media Platforms, Tiejun Cheng, Tong Wang, Jianxiang Wei, Lanping Feng

Journal of Scientific Information Research

[Purpose/significance] Under the influence of cross-social media interactions, online public opinion can ferment simultaneously across different media platforms, deeply interact, and resonate multiple times, which is more likely to trigger a chain reaction of risks or even new types of risks. Therefore, it is significant to analyze the interactive influence of risks based on cross-social media public opinion data to promote the management of online public opinion towards preemptive prevention and early warning. [Method/process] Firstly, based on the analysis of the risk characteristics of cross-social media public opinion, a risk early warning indicator system for cross-social media online public opinion …

Towards A Mechanism For Artificial Intelligence Into University Education For Environmental Architecture A Comparative Analytical Study To Evaluate The Impact Of Artificial Intelligence On Self- Learning In Environmental Design., Heba Mahrous Ali Abd El-Aal

Mansoura Engineering Journal

Architectural education is a field that uniquely targets the creativity and continuous development of architecture students. This is especially true within environmental architecture, which relies on diverse spatial and temporal variables that create unique interactions for students, based on the specific concept of environmental design.

Integrated Multigeneration System Utilizing Industrial Gas Engine Waste Heat For Power, Oxygen, Hydrogen Generation, And Process Heat Supply: A Thermodynamic, Exergo-Economic, And Environmental Analysis, Md Musfiqur Rahman, Md Shahriar Mohtasim, Barun K. Das

Research outputs 2022 to 2026

Integrating waste heat recovery units into industrial energy infrastructure provides a sustainable solution by reducing reliance on fossil fuels and improving substantial plant efficiency. Recent studies have addressed this issue using Brayton, Rankine, organic Rankine, thermoelectric, and electrolysis-assisted waste heat recovery systems for power, heat, hydrogen, or other useful outputs. However, many configurations recover exhaust gas and jacket water heat separately, focus mainly on electricity, and provide limited source-to-sink matching for industrial steam, process heat, oxygen demand, cost, and environmental performance. This study proposes a source-to-sink matched multigeneration system for a 10 MW Wärtsilä 20V34SG gas engine, where each waste …

Green Lithium Extraction From Alkaline Brines Using A Dibenzoylmethane Octanol System, Maryam Gonbadi, Shayan Abrishami, Ozra Gholipour, Ana Vafadar, Amir Razmjou

Research outputs 2022 to 2026

The escalating global demand for lithium necessitates the development of efficient, selective, and environmentally sustainable extraction technologies from brine resources. This study presents a novel solvent extraction system employing dibenzoylmethane (DBM) as a lithium-selective β-diketone chelating extractant and 1-octanol as a biodegradable diluent for lithium recovery from alkaline salt lake brines. The effects of critical process parameters, including aqueous phase pH, extractant concentration, and total dissolved solids (TDS), on lithium extraction efficiency and selectivity were systematically investigated. Under optimized conditions (pH 12, 0.3 M DBM in 1-octanol), the system achieved a single-stage lithium extraction efficiency of 80.8% with exceptional separation …

Building Services Engineering September/October 2026

Building Services Engineering

This issue of Building Services Engineering explores Ireland's net-zero transition, highlighting AI data centre liquid-cooling innovations, critical energy infrastructure updates, ASHRAE and CIBSE safety insights, commercial heat pump selections, decarbonising elevators, and examples of engineering innovation and leadership across the building services sector.

The Army Spreads Its Wings: Army Aviation And Its Influence On War, Christopher J. Braund

Doctoral Dissertations and Projects

Today’s United States Army operates some of the world's most advanced helicopters, conducting some of the most dangerous aerial insertions and close air support missions. Every Army infantry division has a helicopter brigade, with capabilities ranging from command-and-control to attack, scout, and lift assets. Yet, that is a relatively new concept. Developed in the 1960s, the air mobility doctrine emerged from the Eisenhower Administration’s New Look defense policy, giving the Army direction on how to use helicopters within its overall land warfare capability. This dissertation looks at how that occurred. It fills a major gap in the historiography of Army …

An Integrated Review Of Maritime Emission Reduction Through Regulatory Operational Fuel And Technological Approaches, Ehab S. Elabd, Ahmed M. Shama

Blue Economy

The research endeavor at hand is basically meant to trace the most prominent regulatory, operational, fuel-related, and technological approaches employed for maritime emission reduction. From a quantitative perspective, the conducted review comprises four major categories and 80 research contributions. Operational optimization and efficiency strategies and alternative-fuel solutions take the largest shares of the investigations reviewed. Operational optimization and efficiency strategies comprise 29 studies (36.3%), while alternative-fuel solutions comprise 28 studies (35.0%). Comparably, port-related emissions and mitigation strategies include 15 studies (18.8%), whereas design optimization and technological innovations incorporate 8 studies (10.0%). Considering the fact that maritime transport is responsible for …

Glutaraldehyde-Crosslinked Chitosan And Zinc Oxide Coating Reinforced With Polysulfone On Copper As A Platform For Electrochemical Formaldehyde Sensing, Anceu Murniati Anm, Rahmat Saputra Rs, Arie Hardian Ah, Manty Aldilani Ikaningsih Mai, Moh Haifan Haifan

Chimica et Natura Acta

Formaldehyde monitoring requires electrochemical platforms with stable structures and reliable interfacial responses. This study aimed to prepare and characterize a Cu|CS–GLA/ZnO–PSf composite film on a copper substrate as a platform for further formaldehyde-sensing development. The film was characterized using FTIR, SEM–EDX, XRD, and cyclic voltammetry. FTIR supported the presence of features associated with chitosan, imine, polysulfone, and Zn–O, while SEM–EDX revealed a heterogeneous polymer-rich coating with Zn- and O-containing domains distributed non-uniformly. XRD indicated a predominantly amorphous or poorly crystalline structure. Cyclic voltammetry showed scan-rate-dependent peak separations, with ΔEp increasing from 0.632 to 0.777 V in citrate buffer and from …

Engineering, Processing, And Evaluation Of Alternative Solid-Phase Carbon Media For Passive Self-Regulatory Denitrification (Psrd), Chinedu James Chiama

LSU Doctoral Dissertations

Biological denitrification is an effective and cost-efficient approach for nitrate removal; however, conventional processes often rely on liquid carbon sources such as methanol or acetate that require precise dosing and monitoring. Solid-phase denitrification (SPD) using polyhydroxybutyrate (PHB) provides a self-regulating alternative, but its high cost limits widespread application. This dissertation investigated strategies to develop lower-cost solid carbon media and simplify SPD operation for recirculating aquaculture systems (RAS). PHB/cellulose (PHBC) blends containing 20–40% cellulose were first evaluated against pure PHB based on nitrate conversion, carbon release, substrate consumption, and denitrification cost. PHBC60:40 and PHBC70:30 achieved the highest apparent peak nitrate conversion …

Securing The Frontier: Environmental Adaptation Versus Urban Fortification In Strategic Border Gateways: The Case Of East Qantara, Ahmed M. Selim, Mohamed A. Shebl, Doha M. Saeed, Heba M. Gaber

HBRC Journal

Security-oriented urban design at strategic national gateways often restricts spatial openness, cultural identity, and social inclusion, all essential to functional public spaces. This study develops a multi-criteria framework for security-inclusive urban design at East Qantara, the primary vehicular gateway between continental Egypt and the Sinai Peninsula. This study employed a sequential quantitative–interpretive design approach. In the quantitative phase, 51 criteria were identified from Crime Prevention Through Environmental Design (CPTED) principles, Hostile Vehicle Mitigation (HVM) guidance, publicness theory, and context-specific desert and socio-cultural literature, and subsequently revised to 37 criteria through expert panel validation. A structured expert questionnaire with a five-point …

Estimation Of Unmeasurable External Disturbances Of A Dynamic Object Based On A Robust Adaptive Kalman Filter, Bunyod Mamurjon Ugli Buronov

Technical science and innovation

This article considers the problem of directly estimating unmeasurable external disturbances acting on a dynamic object under the condition that the state vector of the object is available for measurement. In the considered case, the problem is reduced to the estimation of an unknown input of a dynamic system. It is shown that when the system state is measurable, both a direct inversion scheme based on the object’s dynamic equation and filtering methods that eliminate the need for coarse numerical differentiation can be applied. For slowly varying disturbances, a random walk model with a small process noise covariance is proposed, …

Technical, Environmental And Institutional Readiness For Nuclear Power Deployment In Seismically Active Power Systems, King Harold A. Recto, Izech Brian O. Edwin

Electronics, Computer, and Communications Engineering Faculty Publications

The deployment of nuclear power in seismically active power systems presents significant engineering, environmental, and institutional challenges. Although nuclear energy offers a low-carbon option capable of supporting long-term energy transition goals, its adoption requires careful evaluation of readiness factors beyond reactor technology alone. This study investigates the technical, environmental, and institutional determinants influencing nuclear power deployment in seismically active regions. A systematic review of engineering, environmental, and policy literature was conducted to identify key factors affecting nuclear energy integration, including grid capacity requirements, seismic safety considerations, hydrological conditions for reactor cooling, and long-term radioactive waste management strategies. These factors are …

Where Do We Go Now: An Examination Of The Role Of 3d Modeling In Cancer Research, Ella Claire Gregory, Hannah Noelle Cochran

ABE 4523/6523 Biomedical Materials

The development of three-dimensional tumor models has become an important area of cancer research. By incorporating biomaterials that can mimic the physical, chemical, and biological characteristics of the tumor environment. 3D models can provide a more physiologically relevant environment for studying tumor growth, cell interaction, metastasis, and drug response.

Life Cycle Assessment Of Emerging Battery Technologies- A Comparative Review Of Sodium-Ion, Zinc-Air, And Aluminum-Ion Systems, Abdulmonem Fetyan, Zishan Shaikh, Syed Nasir Shah, Mohamed Adel Allam, Hemant Mittal, Ahmer A.B. Baloch

All Works

The accelerating global demand for sustainable energy storage solutions has heightened interest in alternative battery chemistries beyond lithium-ion. This review presents a comprehensive comparative analysis of life cycle assessment (LCA) studies on three emerging battery technologies: sodium-ion, zinc-air, and aluminum-ion. By systematically examining peer-reviewed literature published between 2010 and 2025, we evaluate the environmental performance of these chemistries across key life-cycle stages, from raw material extraction to end-of-life treatment. The review employs bibliometric mapping to identify thematic trends and methodological patterns, including system boundaries, functional units, and impact assessment approaches. Sodium-ion batteries show promise due to material abundance and moderate …

Built To Fall: Ruin Value From Romanticist Ideal To Materials Design Philosophy, Vuk Uskoković

Administration and Staff Articles and Research

Ruin value is an architectural principle endorsing the use of designs and materials that would allow buildings to age beautifully and retain their aesthetics even when transformed into ruins. Here, the principle is extracted from the political context in which its proponent, Albert Speer, proposed it and discussed as a continuation of a longer Romanticist tradition of appreciation of weathering and the melancholy beauty of things in decline. Noting its reach well beyond architecture and across other artistic genres, the principle is brought here into the context of natural sciences and the following question is analyzed: Is there room for …

A Nonlinear Viscoelastic 3d Bellows Microspring Fabricated With Two-Photon Polymerization, Harris J. Hall, Tyler Grunzke, Samuel Campbell, Hengky Chandrahalim

Faculty Publications

In the past decade, two-photon polymerization (TPP) based 3D printing has gained popularity for prototype fabrication of micro and nanoscale structures and mechanical metamaterials. However, practical considerations including response uniformity, nonlinear behaviors, and material aging effects remain challenges for device maturation and are seldom reported. In this work, a pair of cylindrical microscale bellows springs (~ 100 μm diameter), fabricated with a commercial TPP 3D printer, are shown to exhibit nonlinear stiffness profiles under compression (up to ~ 7%), with distinct linear and nonlinear regions, that change significantly after ~ 9–10 months of open air exposure in ambient lab conditions. …

Integrated Evaluation Of Rooftop Solar Power Generation System Performance In Tropical Climate Using Geometric, Electrical, And Environmental Parameters, Ayu N. Sari, Ilham R. Fadhlurrahman, Surya Pinanggi, Ermanu A. Hakim, Haneef Nouval Alannibras Humaidi

Journal of Mechanical Engineering Science and Technology (JMEST)

The increasing demand for electrical energy in the commercial sector has encouraged the utilization of rooftop Photovoltaic (PV) systems as a sustainable energy solution in tropical climate regions. However, rooftop PV performance is influenced by the interaction of geometric, electrical, and environmental parameters, which may affect system efficiency. This study analyzes the performance of a rooftop PV system under tropical climate conditions using PVsyst simulation and actual monitoring data collected over 30 days. The research was conducted on an on-grid rooftop PV system with a capacity of approximately 135 kWp, consisting of 217 photovoltaic modules and three inverters with a …

Analysis And Study Of The Content Of Chloride Salts In Oil, Natalia Evgenievna Sheina, Muborak Akramovna Mirshomilova

Technical science and innovation

The article addresses the critical issue of crude oil quality control, specifically focusing on the determination of chloride salts (sodium, calcium, and magnesium), which exert a destructive impact on processing equipment. The paper provides a detailed analysis of the adverse effects of salts, which lead to severe equipment corrosion, scaling, and a reduced yield of valuable oil fractions. The chemical principles and specific applications of two standardized methods for analyzing aqueous extracts according to GOST 21534-2021 and ASTM D3230 are described: indicator (argentometric and mercurimetric) and potentiometric titration. The experimental section presents the results of a comparative analysis of crude …

Mining-Geological And Technological Aspects Of The Development Of The Taushan Gold Deposit, Umid Azamjonovich Atakuziev, Aleksey Rashidovich Khasanov

Technical science and innovation

The paper presents a comprehensive study of the geological, geotechnical and geomechanical characteristics of the Taushan gold deposit that determine the selection of an efficient open-pit mining technology. The lithological structure, tectonic framework, ore body geometry and variation of rock mechanical properties with mining depth were analyzed. The results indicate that intensive fracturing, variable ore body thickness, complicated geological conditions and increased seismic activity significantly reduce the efficiency of conventional drilling-and-blasting mining methods. The application of surface miners as an alternative non-blasting mining technology is substantiated. Mechanical rock excavation provides higher mining selectivity, lower ore losses and dilution, reduced disturbance …

Engineering-Geological And Seismic Conditions Of Arid Territories, Mirabbas Mirsaatovich Zakirov, Golibjon Ernazar Ugli Ochilov, Dilshod Kalandarovich Begimkulov, Inobat Abduvakhidovna Agzamova, Temur Makhmarajabovich Khudoyberdiyev, Ayzada Qaunis Jetpisbaeva

Technical science and innovation

This article presents the results of an assessment of seismic intensity increments depending on the engineering and geological conditions of arid areas in the Muynak district, located in the current Aral Sea crisis zone. Natural and man-made factors shaping the geological environment are examined, including geological structure, lithological and stratigraphic composition, soil physical and mechanical properties, and hydrogeological conditions. Based on the analysis of engineering-geological data, normative classifications of soils according to seismic properties and field research materials, seismic microzoning of the territory was carried out, identifying areas with initial seismicity (“0”) and zones with an increase in seismic intensity …

Satellite-Based Detection And Preliminary Flux Estimation Of The 2024 Boysun Methane Blowout Event In Uzbekistan, Shomurod Bakhtiyor Ugli Turaev, Dilbar Shamurodovna Fazilova, Aziz Nigmanovich Kazakov

Technical science and innovation

Estimating accidental methane emissions from gas fields remains a difficult task, especially in remote mountainous areas where continuous ground-based observations are not available. This study examines the uncontrolled gas blowout that occurred in 2024 at the “Mustaqillikning 25-yilligi” gas-condensate field in Boysun district, Uzbekistan. Changes in methane content were analyzed using Sentinel-5P TROPOMI data for August–November 2024, processed in Google Earth Engine (GEE). The location of the accident site was refined using Sentinel-2 optical imagery, while ERA5 wind speed and direction data were applied for the preliminary calculation of methane flux. Based on the XCH₄ time series, four stages of …

Automatic +1 Diffraction Order Detection In Off-Axis Digital Holographic Interferometry Using An Energy-Based Spectral Model, Nigora Alimdjanovna Akbarova, Dilnoza Ibrokhim Kizi Abdulkhayeva

Technical science and innovation

This paper presents an automatic +1 diffraction order detection algorithm for off-axis digital holographic interferometry (DHI Manual spectral filtering is widely used to find out the desired order of diffraction in the Fourier domain in conventional digital holographic reconstruction. Nevertheless, this approach is very subjective and must be subject to expert guidance, thus, the reconstruction reproducibility and stability can often deteriorate. To address these limitations, this designed scheme constructs a spectral model utilizing energy-maximization as well as adaptive DC suppression and dynamic filter radius estimates. The algorithm itself can automatically observe the distribution of energy in the hologram spectrum and …

Analysis And Optimization Of Intelligent Control Of The Drying Process Under Uncertainty, Azizbek Nodirbekovich Yusupbekov, Marufjon Kobuljonovich Shodiev, Khusniddin Mamarasul Ugli Esonov

Technical science and innovation

This section proposes a multi-criteria Pareto-optimization algorithm, integrated with Herbert Simon's four-stage decision-making scheme (Intelligence–Design–Choice–Implementation) and an ANFIS-based adaptive controller, for simultaneously optimizing the mutually conflicting quality, energy, and time criteria of the wheat-drying process. The algorithm for constructing the set of Pareto-optimal solutions and selecting the compromise solution closest to the ideal point is presented step by step. The implementation of the ANFIS controller in the MATLAB/Simulink environment is comprehensively verified through a simulation block diagram, the Rule Viewer, the Surface Viewer, the training error-function graph, the RMSE convergence graph, and a learning-curve analysis. Training was carried out on …

On The Issue Of Developing Diagnostic Systems In Case Of Incompleteness Of Data, Amanulla Azizovich Kadirov, Shohijahon Ulugbek Ugli Akhmetov

Technical science and innovation

This paper addresses the problem of developing diagnostic systems for industrial equipment when initial failure data is incomplete or unavailable. An approach is proposed for generating synthetic data based on a pseudo-failure generator that implements stochastic modeling of degradation processes. A formalized algorithm for generating time-to-failure samples has been developed, including stages of failure physics analysis, statistical model selection, distribution parameterization, and simulation of operating conditions. The Weibull distribution is used as the base model, allowing for the consideration of various stages of the equipment’s life cycle. Additionally, factors that bring the synthetic data closer to real operating conditions are …

Evaluation Of The Metrological Characteristics Of An Ultrasonic Flowmeter For Water Resources, Makhsud Idrisovich Makhmudov, Uktam Farkhodovich Mamirov, Siroj Sobirovich Nurov

Technical science and innovation

This paper presents the results of evaluating the metrological characteristics of a developed ultrasonic flowmeter intended for measuring water flow in open channels. The study analyzes the main sources of measurement errors and classifies them into methodological, instrumental, additional, systematic, and random components. Experimental investigations were carried out to estimate the random and systematic errors under steady-state flow conditions. Using the least-squares method, the systematic error was separated into additive and multiplicative components, providing a basis for calibration and correction of the measurement results. The reliability of the developed measuring instrument was evaluated using the failure rate method based on …

Development Of An Experimental Stand For The Study Of The Directions Of Movement And Velocity Of Air Flows In The Pneumatic Channel Of The Final Aspiration Of The Muz-16 Air Sieve Separator, Hanna Borisovna Torgan, Zulfiya Kakhramonovna Ergasheva

Technical science and innovation

The article presents the results of experimental studies on the rheological properties of pasta dough obtained from various types of wheat flour (bakery highest grade, as well as durum varieties of Belarusian selection). The regularities of changes in the yield shear stress, plastic viscosity, and shear rate of the semi-finished product were studied depending on the key technological factors of extrusion: moisture content (0.28–0.335 kg/kg), temperature (25–55 °C), and discharge pressure (up to 88 · 10^-5 Pa). The operating principle and design features of the modernized pressing unit and die using special converging-diverging (confuser-diffuser) inserts (according to the patents …