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Synchrotron radiation X-ray absorptionmeasurements wereperformed to study the structure of Si-doped n-type GaN layers grown on sapphire by metalorganic chemical vapor deposition (MOCVD) and undoped GaN epitaxial layers grown on Si by molecular beam epitaxy (MBE).It was found that the anisotropic characteristic...

In this study, the investigators employ emerging technological innovations to develop the mathematical teaching mod-ules in project-based courses. The final result was presented in the students’ aca-demic performance of the end of semester. And the high school students’ inquiry learning spirits are elevated,...

The implementation mechanism of environmental education has long-term benefits in promoting environmental policies and is the trend of promoting environmental education in the world. To address the background and current trends of environmental education development, the content of environmental literacy,...

Living space is an extended value of land resources, a finite environmental resource, and important governance for the government departments to conduct urban and rural planning and public management. Within such an era suffering from the resource crisis, how to manage urban living space resources with...

Sustainable urban mobility refers to the broad subject of urban transport that is sustainable in the senses of economic, social, and environmental perspectives by meeting the needs of both current and future generations in an efficient manner. This paper presents a fuzzy-based sustainability assessment...

As the globe undergoes extreme climate changes, disaster events and their disaster scale continue to increase; therefore, it has become imperative to devise disaster prevention measures. Traditional flood monitoring devices, while operating in harsh environments, are often influenced by changes in weather...

To address unbalanced benefit distribution, ambiguous risk sharing, and insufficient cooperation stability among governments, social capital, and project companies in infrastructure Public-Private Partnership (PPP) projects, this study optimizes multi-party cooperation based on cooperative game theory...

The reaction-diffusion system realizing a particular gauge fixing condition of the Jackiw­Teitelboim gravity is represented as a coupled pair of Burgers equations with positive and negative viscosity. For acoustic metric in the Madelung fluid representtion the space-time points where dispersion change...

An influence of the quantum potential on the Chern­Simons solitons leads to quatization of the statistical parameter = me2 /g, and the quantum potential strenght s = 1 - m2 . A new type of exponentially localized Chern­Simons solitons for the Bloch electrons near the hyperbolic energy band boundary are...

This study aims to evaluate the ability of nickel-plated copper catalytic converters to the fuel consumption of a four-stroke engine. This experimental research uses Yamaha Vixion Lightning as the object of research. Research instruments used include chassis dynamometer, and fuel flow meter. Fuel consumption...

To explore the influencing factors of enterprise support intensity and the impact of key enterprises under the “Thousands of Enterprises Aiding Thousands of Towns” policy, this study examined 170 participating enterprises across 104 towns in Zhaoqing using multiple quantitative methods. Results showed:...

In this paper, we obtain some exact solutions of Derivative Reaction-Diffusion (DRD) system and, as by-products, we also show some exact solutions of DNLS via Hirota bilinearization method. At first, we review some results about two by two AKNS-ZS system, then introduce Hirota bilinearization method...

Green renewable energy is now the focus of global attention and a key opportunity for non-oil-exporting countries to take ownership of their energy. The study integrated the green energy technologies such as solar, biomass, wind, fuel cell bike and carbon footprint to form the experience activities such...

The idle phenomenon of public facilities (called “Mosquito Pavilions”), which represents the waste of national resources and people’s taxes, has been increasingly serious in Taiwan in recent years, and public sectors expect to list idle public facilities into the scope of management and activate them....

This study aims to explore the contributions of public-private partnership (PPP) community infrastructure to developing industries with local characteristics and analyze its financial environment. It takes the cases in Xiamen City (Fujian Province) and Kaohsiung City (Taiwan Province) as examples to...

In this paper, an a-Si:H/a-SiC:H separated absorption and multiplication region superlattice avalanche photodiode (SAM-SAPD) is fabricated successfully by using combined effect of band edge discontinuity and build-in potential in p-n junction. We discuss the relationships among excess noise factor (Fe),...