Recycling news: 2026

Research & science Study of GeSn Selective Area Growth with Demonstration of SWIR Light Detection arXiv:2607.16497v1 Announce Type: new Abstract: As germanium-tin (GeSn) epitaxial growth quality continuously improves, the search for an efficient integration strategy of GeSn optoelectronics devices into complementary metal-oxide-semiconductor (CMOS) manufacturing line also accelerates. Selective area growth (SAG) on patterned substrate emerges as a promising approach for this quest, with loc… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Quantitative Infrared Thermographic Assessment of Hand Cooling Dynamics During Controlled Contact with Metal Plates arXiv:2607.16536v1 Announce Type: new Abstract: This study investigates the spatiotemporal thermal response of human hands during controlled contact cooling using short wave infrared (SWIR), mid wave infrared (MWIR), and long wave infrared (LWIR) thermography. Three participants simultaneously placed one hand on a cooling metal plate and the contralateral hand on a reference plate maintained ne… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Full-band reciprocal parametric amplification in coupled oscillator arrays arXiv:2607.16539v1 Announce Type: new Abstract: Parametric resonance provides a versatile mechanism to manipulate wave signals in time-modulated metamaterials, but typically operates within narrow wavelength or frequency ranges. Here, we show that one-dimensional arrays of coupled resonators can generically exhibit parametric amplification across an entire band under standing-wave parametric mo… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Determination of the roles of strain and tearing in single photon emission from nanoindented WSe$_2$ arXiv:2607.16567v1 Announce Type: new Abstract: Single-photon emission in two-dimensional single-layer WSe2 is attractive for the on-demand generation of quantum states of light. The electronic states that are responsible for single-photon generation preferentially form in regions of localized tensile strain, enabling deterministic positioning and strain engineering. Nanoindentation of single-l… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Delayed Coupling Restores Ising Phase Dynamics in Physical Oscillator Networks arXiv:2607.16634v1 Announce Type: new Abstract: Oscillator-based Ising machines, in which the phases of coupled self-sustaining oscillators evolve toward decreasing an Ising Hamiltonian, are commonly interpreted as physical realizations of the Ising model. This interpretation, however, requires the phase dynamics generated by the physical oscillator network to match a prescribed Ising dynamics.… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science A Compact Reconfigurable Antenna for Single-RF-Chain Passive Multi-Target DOA Estimation arXiv:2607.16822v1 Announce Type: new Abstract: This work proposes a compact and hardware-efficient frequency- and radiation-pattern-reconfigurable antenna (FPRA) for passive multi-target direction-of-arrival (DOA) estimation using a single receive RF chain. The antenna consists of a sectorized circular patch loaded with 16 PIN diodes. By switching the diode states, the current-concentration bo… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Reconfigurable Graphene-Metasurface Analysis via an Eigenmode-Free Method-of-Lines Formulation arXiv:2607.17372v1 Announce Type: new Abstract: We present an eigenmode-free (EF) method-of-lines (MoL) formulation for the fast synthesis of reconfigurable graphene metasurfaces (MS). As the complexity of MSs increases, analysis by full-wave methods becomes challenging. The MoL is a considerably faster semi-analytical method where the electromagnetic equations are solved analytically along the… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Eigenmode analysis of a half-mode uniplanar metamaterial-inspired substrate integrated waveguide arXiv:2607.17403v1 Announce Type: new Abstract: In this work, we systematically analyze the propagation characteristics of a new half-mode uniplanar substrate integrated waveguide (SIW) based on complementary split-ring resonators (CSRR), using a finite element method (FEM) eigenmode solver. The proposed half-mode CSRR SIW has a simpler fabrication than the SIW, since the via are substituted by… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Computationally-tractable synthesis of an MXene metamaterial absorber with a 3D-printable spatially variable substrate by a local approach arXiv:2607.17413v1 Announce Type: new Abstract: We introduce the LOCABINACONN3D methodology to enable the computationally tractable synthesis of MXene metamaterial absorbers (MMA) based on spatially variable 3D-printable substrates. Spatially variable substrates offer enhanced absorption bandwidth compared to constant ones. Such MXene MMAs are typically synthesized by inverse design, which may … arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Biodegradable, Millimeter-Scale Light-Emitting Sensors for Distributed Environmental Monitoring-Functional Pixie Dust arXiv:2607.17623v1 Announce Type: new Abstract: Methods for large-area, precise monitoring across natural environments are of growing interest due to pressing needs for sustainable management of rapidly increasing anthropogenic activities. Established approaches involve sparse spatial sampling and/or sequential measurements, while emerging techniques exploit miniaturized electronics or passive … arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science A Physics-Based Circuit Model for Magnetic Tunnel Junctions arXiv:2503.20813v3 Announce Type: cross Abstract: This work presents an equivalent circuit model for Magnetic Tunnel Junctions (MTJs) that accurately captures their magnetization dynamics and electrical behavior. Implemented in LTspice, the model is validated against direct numerical solutions of the Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equation. It effectively simulates essential spintro… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science The Origins of Transient Bimodality arXiv:2607.16531v1 Announce Type: cross Abstract: Many dynamical systems exhibit diverse modes of behavior. In biology, such modes can represent individual or cell fates. While the emergence of multimodality is commonly studied, transient bimodality is much less well understood. Under transient bimodality, a system moving from a well-defined initial to a final state transiently undergoes a bifu… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Chirality of a $Z_q$ Model as Directional Phase Shifts in Oscillator Networks arXiv:2607.16606v1 Announce Type: cross Abstract: Chirality in a discrete $Z_q$ spin interaction distinguishes clockwise from counterclockwise phase differences, but its manifestation in continuous nonlinear dynamics is unclear. We show that any pairwise $Z_q$ Hamiltonian admits a unique equilibrium-preserving embedding into a continuous phase-energy landscape that matches the discrete energy o… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Imaging of ultrasound specularity at cortical bone interfaces to detect unbalanced remodeling: A preliminary study arXiv:2607.16791v1 Announce Type: cross Abstract: The region near the interface between cortical bone and the medullary cavity (the endosteal surface) is of particular interest for the early detection of osteoporosis. This region is typically the first to exhibit signs of unbalanced remodeling (enlarged pores and increased surface roughness). In this study, we analyze ultrasound reflection at t… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Permittivity Characterization of 3D-Printed Materials at Millimeter Waves arXiv:2607.16937v1 Announce Type: cross Abstract: In this study, we characterize the permittivity of various commercially available materials commonly used in 3D printing over the millimeter-wave frequency range of 70-110 GHz. The open-waveguide extraction method is employed to efficiently determine the permittivity of these 3D-printed materials, and key strategies for improving its accuracy ar… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Perfect Absorption in the Critically Damped Regime arXiv:2607.17172v1 Announce Type: cross Abstract: We revisit the conditions for perfect electromagnetic absorption in a homogeneous lossy layer on a reflecting substrate. Using phasor diagram analysis, we demonstrate a fundamental physical similarity between the high-refractive-index limit (classic Dallenbach quarter-wavelength absorbers) and the epsilon-near-zero regime (half-wavelength resona… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Colored $\Delta_T$ noise probes the topological character of edge modes arXiv:2607.17354v1 Announce Type: cross Abstract: We investigate colored $\Delta_T$ noise, i.e., finite-frequency $\Delta_T$ noise, as a probe of edge-mode (EM) transport in quantum Hall and quantum spin Hall systems. Colored $\Delta_T$ noise probes finite-frequency nonequilibrium current fluctuations and dynamical transport properties that are often obscured in DC measurements of conductance a… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Single-atom sensor for low-frequency electric field arXiv:2607.17583v1 Announce Type: cross Abstract: Precision measurement of low-frequency electric field (LFEF) signals with frequency from 30 kHz to 300 kHz is crucial for advancing both fundamental science and practical applications, owing to their unique frequency regime. For conventional electromagnetic antennas, the long wavelength (i.e., several kilometers) of the LFEF leads to a severe si… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Numerical Investigation of a 3D End-Firing Antenna Array Based on Two-Photon Polymerization on Thin-Film Lithium Niobate for Optical Beam Steering arXiv:2607.17698v1 Announce Type: cross Abstract: Optical phased arrays (OPAs) are key components for solid-state beam steering in emerging photonic technologies such as LiDAR, optical communication, and adaptive optics. However, conventional integrated OPA designs face trade-offs between bandwidth, steering range, and fabrication complexity. Here we designed and numerically analyzed a novel th… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science On the use of equilibrium models to describe dynamic adsorption regimes arXiv:2607.17941v1 Announce Type: cross Abstract: We present a column adsorption model that couples a Pseudo-First-Order (PFO) kinetic formulation with the Sips isotherm framework. Using a traveling wave approximation, we derive analytical solutions for specific operating conditions. Qualitatively, these solutions deviate significantly from their pure Sips counterparts: instead of a smooth, con… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Opportunistic Lower-Terahertz Rainfall Estimation with DSD-Constrained Channel Characterization arXiv:2606.21857v3 Announce Type: replace Abstract: Rain-induced attenuation and scattering become significant at terahertz (THz) frequencies, and exploiting this rain sensitivity is necessary both to safeguard link reliability and to enable opportunistic environmental sensing without dedicated instrumentation, a capability that remains largely unvalidated on real outdoor channels above 100 GHz… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Predictive Model for the Dissipation Dilution of Soft-Clamped Modes in Polygon Resonators arXiv:2506.18109v3 Announce Type: replace-cross Abstract: Polygon resonators are promising candidates for nanomechanical applications due to their compact architecture and high force sensitivity. Here, we develop a polygon-specific analytical model for perimeter modes by coupling the flexural motion of the polygon sides to tether torsion governed by a stress-modified Timoshenko-Gere (TG) equati… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science General Purpose Inverse Design of Heterogeneous Finite-Sized Assemblies arXiv:2510.17677v2 Announce Type: replace-cross Abstract: Designing heterogeneous, self-assembling systems is a central challenge in soft matter and biology. We present a framework that uses gradient-based optimization to invert an analytical yield calculation, tuning systems toward target equilibrium yields. We design systems ranging from simple dimers to temperature-controlled shells to polym… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science SoMA: A Real-to-Sim Neural Simulator for Robotic Soft-body Manipulation arXiv:2602.02402v2 Announce Type: replace-cross Abstract: Simulating deformable objects under rich interactions remains a fundamental challenge for real-to-sim robot manipulation, with dynamics jointly driven by environmental effects and robot actions. Existing simulators rely on predefined physics or data-driven dynamics without robot-conditioned control, limiting accuracy, stability, and gene… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Analytical calculation of the spectrum of nonlinear Compton scattering beyond local approximations arXiv:2606.22427v2 Announce Type: replace-cross Abstract: We derive compact analytical formulae for the spectrum of nonlinear Compton scattering in a finite plane-wave pulse with a smooth temporal envelope. The strong-field QED probability is reduced to finite-pulse phase integrals, which are evaluated asymptotically for multicycle pulses with a broad class of smooth envelopes. We use the unifo… arXiv — physics.app-ph (Applied Physics preprints) · 21 Jul 2026 Research & science Assessing the Readability of Sustainability Reports: Obfuscation or Jargon? Business Strategy and the Environment, EarlyView. Business Strategy and the Environment (Wiley) · 21 Jul 2026 Research & science Framing Transformative Capacities in Public Procurement Supply Chains: A Review and Research Direction Sustainable Development, EarlyView. Sustainable Development (Wiley) · 21 Jul 2026 Research & science Impression Management in Nonfinancial Disclosures: A Tone Management Analysis in Oil and Gas Companies Business Strategy and the Environment, EarlyView. Business Strategy and the Environment (Wiley) · 21 Jul 2026 Research & science Digital Transformation Through AI in a Major Hungarian Bank - Springer Nature Link Circular Economy and Sustainability (Springer) · 21 Jul 2026 Research & science Q&A: How anaerobic digestion can help reduce emissions and increase income streams An advanced technology that could benefit farmers' bottom line and help meet the rising demand for domestic energy production borrows a key ingredient from a centuries-old practice of burning dried manure to warm homes where trees were sparse or expensive: animal waste. Phys.org — recycling search feed · 21 Jul 2026 Research & science Negotiation Essentials - UCL | University College London UCL News · 21 Jul 2026 Research & science Climate Change, Strategic Orientation, and Green Innovation: Unpacking External and Internal Drivers in Competitive Contexts Business Strategy and the Environment, EarlyView. Business Strategy and the Environment (Wiley) · 21 Jul 2026 Research & science Eight lifesaving ways to improve wildfire risk management As the flames advanced toward the village of Bédar in Spain's Almería province, the mayor gave a desperate order to ring the church bells to warn residents. It was not enough. The July 9 Los Gallardos fire, which claimed 13 lives and burned 7,000 hectares (17,300 acres), was Spain's third-deadliest on record. Phys.org — Environment tag feed · 21 Jul 2026 Research & science Regional Convergence in Sustainable Development Goal Performance in Portugal: A NUTS II Composite Index Approach, 2015–2023 Sustainable Development, EarlyView. Sustainable Development (Wiley) · 21 Jul 2026 Research & science Three decade rainfall and temperature variability and climate information services shaping smallholder resilience in semi arid Somaliland Smallholder farmers in semi-arid regions face increasing climate risks from erratic rainfall, dry spells, and rising temperatures that undermine agricultural productivity and resilience. This study assessed the contribution of Climate Information Services (CIS) to smallholder resilience in Gabiley District, Somaliland, using a mixed-methods design combining climate trend analysis (1993–2023) wi… Discover Sustainability (Springer) · 21 Jul 2026 Research & science Corrosion protection of XC70 mild steel by a Ni–Co/TiO₂ composite coating in an acidic chloride environment In this study, the corrosion behavior of XC70 steel in a 0.5 M HCl acidic medium was investigated using Ni–Co–TiO₂ composite coatings prepared by electrodeposition. The corrosion resistance of bare steel, Ni–Co alloy coating and Ni–Co–TiO 2 nanocomposite coatings deposited with various TiO 2 concentrations in the bath, was investigated using weight loss measurements and electrochemical tec… Environmental Science and Pollution Research (Springer) · 21 Jul 2026 Research & science Digital empowerment for green governance: digital economy, public environmental concern, and urban industrial pollution control The digital economy (DE) is a nascent economic model with the potential to mitigate urban industrial pollution (UIP) while encouraging high-quality economic expansion. This paper utilized panel data from 258 Chinese cities and employed the fixed-effects model, the mechanism test model, panel threshold model, and the spatial Durbin model to undertake an empirical investigation into the DE on UIP… Frontiers in Environmental Science · 21 Jul 2026 Research & science Economic optimization of climate adaptation for water security: an integrated water–energy nexus risk assessment framework The world faces unprecedented demands on water and energy infrastructure because of climate change, and a massive economic structure is needed to enable adaptation planning. This study presents a combined cost–benefit analysis that can be used to analyze climate adaptation strategies in the water and energy sectors. Our model is a multi-objective optimization model, where climate risk measureme… Frontiers in Environmental Science · 21 Jul 2026 Research & science The virtuous loop between nature and well-being: a model of pro-environmental behavior Several studies show the benefits of being close to natural and biodiverse environments. Since COVID-19, people have placed value on natural spaces and rural areas, spending much time indoors. The present study aims to explore the relationship between wellbeing, contact with nature in outdoor activities, environmental awareness, and pro-environmental behavior, as a function of socio-demographic… Frontiers in Environmental Science · 21 Jul 2026 Research & science The impact of sustainable human resource management on firm performance: evidence from Indonesian agriculture firms As one of the major contributors to environmental degradation, the agricultural sector is expected to play an active role in addressing environmental challenges, including through the implementation of sustainable human resource management. This study aims to examine whether the adoption of sustainable human resource management has influenced firm performance which measured by ROA (Return on As… Frontiers in Sustainability · 21 Jul 2026