Abstract Geometry‐tunable substrates with abundant plasmon resonant structure are ideal to proffer high surface‐enhanced Raman scattering (SERS) activity for trace sensing including pollutants and toxics, whereas great challenge remains in creating high‐density “hotspots” these structures further improving signals detection sensitivity. Herein, one‐step dealloying strategy is proposed fabricate free‐standing copper membranes hierarchical porous architecture where a density of inherent built...

Raman spectra are considered as signatures of matter and have been widely used to identify several classes materials. The development mobile spectrometers further extends applications spectroscopy, both indoor/outdoor in vivo/in vitro measurements evaluated on site. However, the finite detection level restricts its application high density matters. Here we report a facile silver nanoparticle decorated nanoporous gold (NanoAg@NPG) substrate, which can provide enhancement signal from nearby...

The entrepreneurial institutional environment is the external factor that enterprises rely on for survival. Our interest in how entrepreneurs cultivate orientation response to highly uncertain situation. Based cognitive appraisal theory of emotion, we analyzed impact through passion. This study applied stepwise regression analyses test hypotheses a sample 197 from co-creation space China. output showed had positive effect and passion played mediating role between orientation.

We report the tuning of localized surface plasmon resonance (LSPR) nanoporous gold (NPG) by silica coating, which also affects enhanced Raman scattering (SERS) NPG. In this study, controllable shell is assembled on NPG surface, and a fully thin layer causes more than 50 nm red-shift LSPR band due to dielectric medium dependence. Additionally, ~1 coated film shows excellent SERS enhancement, electromagnetic coupling between ligaments local field enhancement within pores, theoretical analysis...

Nanoporous gold (NPG) has been reported to provide remarkable fluorescence enhancement of adjacent fluorophores due the metal-enhanced phenomenon (MEF), and is related with characteristic length nanoporosity. To fully understand effect NPG on nearby fluorophores, it desirable study systems well-defined metal-fluorophore distances. In this we investigated distance by using silica as spacing layer between NPG. Originating from competition plasmonic amplifying metallic quenching, dye molecule...

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Emotional experience is an important topic in the field of tourism research. Current studies have paid less attention to emotion differences tourist attractions. This paper analyzes type and theme eleven categories Nanjing, was selected as study area. Ten main travel types five themes applied Chinese texts were proposed, expanding dimension existing emotions. The framework extraction constructed by natural language processing deep learning method. results verified that different attractions...

Surface-enhanced Raman scattering (SERS) technology can amplify the signal due to excited localized surface plasmon (LSP) from SERS substrates, and properties of substrate play a decisive role for sensing. Several methods have been developed improve performance by modification. Here, we reported modification method construct carbon-coated nanoporous gold (C@NPG) substrate. With carbon-assistant, ability (NPG) seriously improved, detection limit dye molecule (crystal violet) reach 10-13 M....

In this study, the dynamic effects of new product supply chain cooperation behavior on optimal government subsidies and decision-making are studied by establishing a nonlinear discrete inventory decision system; system, subsidizes authorized remanufacturers to promote remanufacturing, cooperative exists in products. The research method is modeling simulation system based dynamics theory. complexity analysis includes stability path into chaos, change entropy performance chaos system. Our...

By integrating the theory of workplace anxiety with a self-regulatory theory, this study investigates mediating role in relationship between leader bottom-line mentality and abusive supervision targeting follower, as well moderating effect rules climate on leaders' emotion-behavior process.A total 393 employees 91 supervising managers participated multi-source, two-wave survey. To test our hypotheses, we performed regression analysis conducted bootstrapping analyses using Hayes PROCESS...

Nanoporous metals possess excellent catalytic and optical properties that are related with surface morphology. Here, we modulated the ligament of nanoporous gold (NPG) by controlling electrochemical dealloying obtained NPG an improved enhancement its surface-enhanced Raman scattering (SERS) property. We found both high-density atomic steps kinks on curved surfaces high-content silver atoms close to contributed high SERS ability. The presented strategy will be useful for fabrication metal is...

This paper studies the complexity of pricing system for production low‐carbon and nonlow‐carbon products in a market composed duopoly manufacturers under cap‐and‐trade policies. Through nonlinear theory numerical derivation simulation, it considers influence different power structures, carbon trading prices, consumer environmental awareness, other factors on price decisions, emission profits, stability. The adjustment parameters unit product decision structures is analyzed. And, was found...

Although the ability to manage public health emergencies in China has improved significantly, there are still many challenges existing information transmission mechanism pandemic early warning systems. In this context, a tripartite evolutionary game model composed of local government, whistleblower, and is formulated. By using Matlab, dynamic evolution path stimulated under different conditions. Stable strategies for an system also explored. The results indicate that cost whistleblowing,...

Quality function deployment (QFD) is a customer-driven quality management tool that can improve system quality, promote innovation, and enhance the core competitiveness of enterprises. Nonetheless, traditional QFD method has defects in handling experts’ assessments, measuring customer requirement importance, prioritizing engineering characteristics, which affect its efficiency limit application real world. In this study, new approach based on spherical fuzzy sets (SFSs) combined compromise...

Vision-based forest fire detection systems have significantly advanced through Deep Learning (DL) applications. However, DL-based models typically require large-scale labeled datasets for effective training, where the quality of data annotation is crucial to their performance. To address challenges related and quantity labeling, a domain adaptation-based approach called FireDA proposed recognition in scenarios with limited labels. Domain adaptation, subfield transfer learning, facilitates...

Collusion is a critical problem in the electricity market, which probably undermines stability and equity of market operation. In this study we collusion during bilateral negotiations direct purchase market. Firstly, multiple to (MTM) model negotiation built based on traditional Rubinstein model. Then, divide into two categories. Specifically, can be divided One pre-specified information other process communication. bidding strategies under above collusions are studied detail. Finally,...

In recent years, the rapid development of China's smart phone and mobile network business has laid foundation for game industry, sales revenue industry market in 2021 reached 296.513 billion yuan, an increase 17.826 yuan over last year, a year-on-year 6.4%, foreign growth 16.6%. From 2014 to 2020, average annual compound rate size was as high 40.3%. The profit margin low entry threshold have also quickly attracted large number high-quality Internet companies lay out track, head Tencent...