Results 101 to 110 of about 30,223 (236)

Field Investigation on Quality Assessment of Suspended Cold Joints in Concrete Slabs Using Ultrasonic Pulse Velocity (UPV) Technique: A Case Study [PDF]

JES: Journal of Engineering Sciences
This study reports field investigation examining the use of the Ultrasonic Pulse Velocity (UPV) test as a non-destructive evaluation method for assessing concrete quality in suspended cold joint region.
Mahmoud Abdelemam, Eslam Soliman, Shehata Abdel Raheem, Mohamed Nafadi   +3 more
doaj   +1 more source

Controlling the Center of Mass Motion of Levitated Particles Using Structured Wavefronts

Laser &Photonics Reviews, EarlyView.
Optically levitated particles have great potential for quantum‐enhanced sensing. Precise control of the trapping beam is crucial to improve the stability and confinement of these systems. Here, we study how structured wavefronts can be used to control the center‐of‐mass motion of levitated particles, enhancing trap stiffness and enabling stable ...
Shah Jee Rahman, Quimey Pears Stefano, Angel Cifuentes, Jason Francis, Iker Gómez‐Viloria, Ruben Pellicer‐Guridi, Miguel Varga, Gabriel Molina‐Terriza   +7 more
wiley   +1 more source

R&D Organization and Corporate Social Responsibility Specialization

Managerial and Decision Economics, EarlyView.
ABSTRACT In this paper, we examine whether the scope of corporate social responsibility (CSR) should be broad or narrow. A broad scope covers both production and R&D investment decisions, while a narrow scope applies only to production decisions. We show that both firms' choices and the government's preferences depend on the level of CSR concern and on
Quan Dong, Juan Carlos Bárcena‐Ruiz, Amagoia Sagasta   +2 more
wiley   +1 more source

Mechanical Characteristics of Hardened Concrete with Different Types of Cement and Aggregate Available in Bangladesh

Platform, a Journal of Engineering
This paper presents the results of an investigation into the influence of aggregate and binding material type on the mechanical properties of hardened concrete.
Asif Hossain Abir
doaj  

Inline Conversion Monitoring in MMA High Solid Content Polymerization Process

CHIMIA, 2001
Inline conversion measurements in chemical reactions are in general and especially in polymerization reactions necessary for process monitoring and control. For polymerization monitoring, the sound propagation (UPV) can be related to the texture
Thomas Zeilmann, Frédéric Lavanchy, Thierry Meyer   +2 more
doaj  

Ensemble learning based compressive strength prediction of concrete structures through real-time non-destructive testing

Scientific Reports
This study conducts an extensive comparative analysis of computational intelligence approaches aimed at predicting the compressive strength (CS) of concrete, utilizing two non-destructive testing (NDT) methods: the rebound hammer (RH) and the ultrasonic ...
Harish Chandra Arora, Bharat Bhushan, Aman Kumar, Prashant Kumar, Marijana Hadzima-Nyarko, Dorin Radu, Christiana Emilia Cazacu, Nishant Raj Kapoor   +7 more
doaj   +1 more source

Decoupling Formulation and Processing Effects in Thermoplastic Starch Through a Data‐Driven Structure–Property Framework

Polymer Engineering &Science, EarlyView.
Processing‐property relationships in thermoplastic starch (TPS): plasticizer type, starch source and melt‐processing temperature establish a hierarchy of effects that governs process‐induced changes and the resulting TPS properties. ABSTRACT Thermoplastic starch (TPS) is a melt‐processable biopolymer whose properties depend strongly on formulation and ...
Cristina Pavón, Nerea Martínez, Alexandra Llidó Barragán, Juan López‐Martínez   +3 more
wiley   +1 more source

Thermoresistive Sensors Based on Eco‐Friendly Carbon Dioxide‐Derived Polymeric Poly(Cyclohexene)carbonate Loaded With Reduced Graphene Oxide and Carbon Black

Polymer Engineering &Science, EarlyView.
Thermoresistive sensing materials derived from eco‐friendly polymers for broad‐range temperature measurements. ABSTRACT Carbon dioxide‐derived polycarbonates (CO2‐PCs) present a sustainable alternative to standard bisphenol A polycarbonates (BPA‐PCs), as they are synthesized from the reaction between epoxide and carbon dioxide (CO2). In fact, these eco‐
Ane Martín‐Ayerdi, Luis Rubio‐Peña, Nikola Peřinka, Sergio Merillas, Itziar Oyarzabal, José Luis Vilas‐Vilela, Pedro Costa, Senentxu Lanceros‐Méndez   +7 more
wiley   +1 more source

Similarity‐Driven Framework for Efficient Polymer Property Prediction Under Data Scarcity Scenarios

Journal of Polymer Science, EarlyView.
A new approach, based on structural and chemical similarities between polymers, is proposed to improve the performance of artificial neural networks in predicting the glass transition temperature under data‐scarce conditions. ABSTRACT Predicting polymer properties directly from chemical structure is essential for the rational design of advanced ...
Amaia Elizaran Mendarte, Gustavo A. Schwartz   +1 more
wiley   +1 more source

Pro‐197 mutations confer resistance to thiencarbazone but not to foramsulfuron in ALS‐resistant Poa annua populations

Pest Management Science, EarlyView.
Foramsulfuron remains effective on Pro‐197 Poa annua, but co‐formulation with thiencarbazone reduces efficacy due to limited activity and antagonism. Therefore, foramsulfuron + thiencarbazone should be used in fields without ALS‐resistant weeds to ensure effective in‐crop control.
Vijaya Bhaskar Alwarnaidu Vijayarajan, Iniya Vijayakumar, Rafa Ruiz‐Partida, Fabian Runge, Joel Torra, Jorge Lozano‐Juste, Patrick Dermot Forristal   +6 more
wiley   +1 more source