Abstract Although business strategy plays a fundamental role in firm operations, whether and how affects firms' environmental protection behaviors remain unclear. On the basis of typical emerging market, we show that firms following prospector strategies take more actions than do those defender strategies. Our findings are robust to endogeneity checks alternative measures strategy. We further find prospectors engage activities defenders when degree financial constraint or earning management...

Abstract This study examines whether and how business strategies affect firms' sustainable development from the view of green innovation. We show that firms following prospector strategy engage in less behaviors than those defender strategies. The negative relation between innovation continues to hold when addressing robustness with alternatives potential endogeneity instrumental variable. further find political connection strengthens whereas environmental regulation weakens Finally, we...

An innovative fusion reactor suitable for D-3He fuel is proposed; it based on a dipole magnetic field produced by levitated superconducting coil. The equilibrium plasma, whose phase space density satisfies ∂f̑0(μ,J,ψ)/∂ψ = 0, where ψ the flux function, has steep enough pressure profile an efficient reaction yet stable to low frequency instabilities local beta exceeding unity. At outer wall, plasma stabilized line tying or localized cusps which can be used direct conversion. product...

The rapid development of wavelength-division multiplexing (WDM) systems has underscored the critical requirement for effective link monitoring to ensure system reliability and performance. Traditional approaches often rely on separate devices communication sensing, which can compromise spectral efficiency increase complexity. This work presents an innovative method integrating sensing within a conventional optical supervisory channel. Four QPSK data streams with different duty ratios enable...

In this paper, the effects of underfill on thermomechanical behavior two types flip chip packages with different bumping size and stand-off height were investigated under thermal cycling both experimentally two-dimensional (2-D) finite element simulation. The materials inelasticity, i.e., viscoelasticity U8437-3 viscoplasticity 60 Sn40 Pb solder, considered in simulations. results show that use encapsulant increases tremendously (/spl sim/20 times) fatigue lifetime SnPb solder joint, weakens...

Noninvasive real-time distributed pipeline monitoring technology is a key factor for the sustainable development of transportation pipelines. In this work, we have proposed and demonstrated microstructure optical fiber acoustic sensor (MOF-DAS)-based flow rate sensing system. Such system based on detection flow-induced vibration (FIV) to achieve measurement. We used Euler-Bernoulli beam theory build up FIV-based model numerically analyzed pressures fluctuation at wall under different rates....

The development of nanohybrid with high electrocatalytic activity is great significance for electrochemical sensing applications. In this work, we develop a novel and facile method to prepare high-performance flexible paper electrode, based on nitrogen-doped carbon (NC) wrapped Bi nanoparticles (Bi-NPs) assembly derived from Bi-MOF, which are decorated freestanding graphene (GP) electrode. as-obtained Bi-NPs encapsulated by an NC layer uniform, the active sites increased introducing nitrogen...

Four copper(I) alkynyl complexes incorporating phosphate ligands, namely, [Cu16(tBuC≡C)12(PhOPO3)2]n (1; PhOPO3 = phenyl phosphate), [Cu16(tBuC≡C)12(1-NaphOPO3)2]n (2; 1-NaphOPO3 1-naphthyl [VO4@Cu25(tBuC≡C)19(1-NaphOPO3)](PF6)0.5(F)0.5 (3), and [PO4@Cu25(tBuC≡C)19(1-NaphOPO3)](PF6)0.5(F)0.5 (4), were solvothermally synthesized well-characterized by IR spectroscopy, powder X-ray diffraction, single-crystal diffraction. Single-crystal analysis revealed that the Cu16 cluster-based coordination...

Rapid and long-range distance measurements are essential in various industrial scientific applications, among them, the dual-comb ranging system attracts great attention due to its high precision. However, temporal asynchronous sampling results tradeoff between frame rate precision, non-ambiguity range (NAR) is also limited by comb cycle, which hinders further advancement of system. Given this constraint, we introduce a Vernier spectral interferometry improve NAR First, leveraging dispersive...

We propose and experimentally demonstrate a large-range seamless rate-adaptive free-space optical (FSO) scheme based on rate compatible modulation (RCM). It utilizes mapping method through weighted summation, enabling an even increase of bit energy. This allows the system to seamlessly adjust throughput. In addition, handover mechanism check acknowledgment signals ensures wide coverage signal-to-noise ratio (SNR) fluctuation. is worth noting that this does not require any changes matrix...

We demonstrated a linearly-polarized picosecond thulium-doped all-fiber-integrated master-oscillator power-amplifier system, which yielded 240 W of average output power at 127 MHz repetition rate. The seed source is passively mode-locked polarization-maintaining all-fiber oscillator with nearly transform-limited pulse duration 10 ps. In combination pre-chirp fiber having positive group velocity dispersion and three stage amplifier, energies up to 1.89 µJ 42 kW peak are obtained without the...

The humidity sensors constructed from polymer optical fiber Bragg gratings (POFBG) respond to the water content change in induced by varying environmental condition. is a diffusion process. Therefore response time of POFBG sensor strongly depends on geometry and size fiber. In this work we investigate use laser micromachining D-shaped slotted structures improve grating based sensors. A significant improvement has been achieved micromachined allows rapid access core region but does not itself...

We propose a scheme to generate gamma-ray photons with an orbital angular momentum (OAM) and high energy simultaneously from laser-plasma interactions by irradiating circularly polarized Laguerre-Gaussian laser on thin plasma target. The spin OAM are first transferred electrons the driving photons, then is through quantum radiation. This has been demonstrated using three-dimensional electrodynamics particle-in-cell simulation. topological charge, chirality carrier-envelope phase of short...

Bi, In and Ti were added to Sn-3.8Ag-0.7Cu (SAC387) solder alloy optimize the mechanical performance. The alloying effects of on microstructure, thermal properties SAC387 based alloys investigated. results demonstrate that adding 3.5 ​wt % Bi could refine properties, improve tensile strength. Meanwhile, ductility reduced evidently. Adding 2.8 into SAC387–3.5 %Bi increase both strength ductility, which is attributed beneficial effect addition, as solubility in β-Sn matrix. melting point was...

The effects of different surface treatments on the wetting properties indium-tin-oxide (ITO) anodes and its ageing were investigated by contact angle energy measurements. We found that both depended strongly treatment. Oxygen plasma treatment not only gave highest polarity, but also enhanced significantly wettability ITO surface. And change in due to decayed with time after difference between untreated treated became smaller increase Furthermore, we studied effect performance polymer...

High speed free-space optical interconnection (FSOI) is an effective strategy to overcome the bottleneck of short-reach electronic from chip scale board level, due its wide bandwidth, high energy efficiency, low latency and interconnect density. Here, we propose accelerating beam enabled reconfigurable FSOI scheme by harnessing characteristics diffraction-free, self-healing, specifically designed trajectory. Then experimentally demonstrate a proof-of-concept 100 Gbps full duplex dual-band 2D...