With the maturity of various technologies and the vigorous development of advanced materials, the design and construction of suspension bridges require larger spans and lighter structures, but at the same time, the problems arising from the dynamic and static responses of the system under wind loads have become more and more prominent. The phenomenon of wind-induced static response occurring before the emotional response has been found in wind tunnel tests at home and abroad. Static instability is also a vital issue in the wind-resistant design of large-span suspension bridges, so studying the static behavior and instability law of large-span suspension bridges under strong winds is of high practical value for the construction of large-span bridges in the future. In this paper, relevant research results of previous researchers based on static wind stability of suspension bridges are sorted out and summarized. Their corresponding fundamental theories are introduced in detail. In addition, the related analysis program is prepared by using the APDL language of ANSYS.

The temperature of the earth has been increasing since the industrial revolution. In recent years, global warming has become more and more severe, so as to the warmer ocean. This paper focus on the response of the oceans to the global warming in physical, chemical, and biological. Under the current climate of global warming, the oceans play a huge mitigating role as thermal containers. And the oceans are also the largest carbon sink in the world. This leads to a serious pollution, ocean acidification, which may change the physical and chemical processes of the ocean and affect the environment of marine life. In the meantime, we point out that the nature internal variability also has great impact on the marine ecosystem, like fish catches. If we learn more the mechanisms of the internal variability, there would be less uncertainty of the ocean changes. Overall, we show a general picture of the effect of the ocean warming to our readers and try to give some constructive suggestions to the policy maker.

Overview of relevant research fields: Introduce the basic concepts and background of oxidizing thin films and doped materials. Discuss the characteristics, applications, and effects of doping on the performance of oxidizing thin films. Types and effects of doping elements: Introduce commonly used doping elements in oxidizing thin films, such as Al, Ga, Sn, etc. Discuss the effects of different doping elements on the properties of thin films, such as electrical, optical, and magnetic properties. Temperature and concentration effects: Exploring the effects of doping temperature and concentration on the properties of oxidizing thin films. Analyze the mechanisms and patterns of the effects of temperature and concentration on lattice structure, defect morphology, and carrier concentration. Application Fields and Prospects: Review the research progress of oxidative thin film doping in various application fields, such as optoelectronic devices, catalysts, sensors, etc. Looking forward to the future development direction and potential application fields of doping in oxidizing thin films. When writing a review, ensure accurate citation of relevant literature and analyze and discuss from multiple perspectives. In addition, pay attention to using concise and clear language to make it easy for readers to understand and obtain information. The most important thing is to ensure that the literature review complies with academic integrity and ethical standards, and adheres to citation norms.

Against the backdrop of rapid industrialization and water scarcity, and in response to the United Nations’ call for “sustainable development,” this paper utilizes industrial sustainable water use indicator data from 30 provinces in China. Using a two-stage parallel two-stage SBM dynamic (PTSD) model, the paper calculates interprovincial industrial sustainable water use efficiency and employs a gravity shift model for evaluation, aiming to provide policy recommendations for achieving sustainable development in industrial water use. The analysis reveals (1) disparities in interprovincial sustainable water use efficiency in China, with higher efficiency observed in the eastern provinces and lower efficiency in the western provinces. (2) The environmental governance stage in the two-stage model exerts a greater influence on overall efficiency than the production stage. (3) The gravity shift shows an initial southward movement followed by a shift towards the northeast, with the overall efficiency being higher in the eastern regions compared to the central and western regions. This study not only fills the gap in the academic research on industrial water use efficiency from a sustainable development perspective but also aligns with the United Nations’ call for sustainable development, reflecting the policy requirements of pursuing sustainable development in our country. It contributes to improving residents’ living environment, promoting industrial upgrading, and facilitating balanced regional development.

Montmorillonite can be used to achieve nano-dispersion level by forming peel or intercalation structure in polypropylene body, so as to improve the mechanical properties of the material. In addition, montmorillonite plays the role of nucleating agent during the crystallization of polypropylene, which improves the crystallization efficiency of polypropylene. After the organic modification of montmorillonite, the spacing between crystal surfaces can be enlarged to form organic montmorillonite, which makes the molecular chains of polypropylene more easily dispersed to the interlayer of organic montmorillonite, forming a dense surface layer in the process of thermal decomposition, so as to improve the thermal stability of polypropylene and enhance the flame retardant property of polypropylene. Many previous studies have shown that montmorillonite plays a significant role in improving the mechanical strength and crystallization effect of polypropylene, as well as the flame retardant properties of nanocomposites.

As the issue of e-waste continues to grow alongside the expansion of technology, the solutions required to counteract the problem need to keep up and adapt as well. However, the present solutions implemented lack advanced development and are unable to remedy the growing issue. Through this paper, we focused on four different solutions: extended life of smartphones, increased e-waste recycling centers, increased accessibility to electronic repairs, and finally, increased efficiency of e-waste recycling centers. Honing in on cost and benefit analysis and data analysis, we deducted that increasing efficiency of e-waste recycling centers was the best solution to focus on. Not only does this solution increase the amount of e-waste that can be processed and reduce overall pollution in our landfills, the resources that can be extracted as well can help reduce even more waste that is produced by technology companies in new electronic production.

Microplastics, personal care products, insecticides, industrial chemicals, and medications are just a few of the many compounds that fall under the category of emerging contaminants. The negative impacts of new chemicals in sewage on the water environment have emerged as a concern in recent decades. Due to its complex chemical properties and often low concentration in the aqueous phase, there is a lack of standardized and effective methods for determination. Understanding the various detection ranges in various water bodies, encouraging research on the toxic effects and toxicity of emerging contaminants, and comprehending the capacity of various treatment technologies to lower their concentrations to non-toxic levels are the main foci of this paper in this regard. The essay examines the obstacles in current research on developing contaminants, examines the toxicity of new contaminants and their available removal technologies, and summarises and projects the current limitations. It is anticipated to help with the management of new toxins in wastewater.

This paper presents a comprehensive overview of beta-blockers, a class of important medications used for treating various cardiovascular conditions like hypertension, angina pectoris, heart failure, and arrhythmia. The mechanism of beta-blockers involves blocking the binding of epinephrine and norepinephrine to b-adrenoceptors. Accurate targeting of beta-blockers is crucial for athletes participating in archery, billiards, and golf as it can effectively lower heart rate and reduce anxiety. To identify drug compounds, various separation techniques, including HPLC, GC, and CE, are commonly employed. Among these techniques, electrochemical approaches have gained prominence due to their significant advantage of not requiring any separation or extraction processes. Electrochemical methods are also advantageous as they remain unaffected by optically absorbing and fluorescent compounds, a limitation encountered in spectroscopy. Additionally, electrochemical methods can be quickly functionalized with nanomaterials to enhance their performance. While optical methods like spectrophotometric and spectrofluorometric techniques offer certain advantages over other analytical approaches, such as affordability, simplicity, and faster analysis times, they may not provide the same straightforward and rapid detection of beta-blockers as the electrochemical methods do. Therefore, considering the specific context and objectives of analysis, researchers can choose between electrochemical and optical techniques to effectively study and detect beta-blockers in different applications.

Biodegradable fibers have the advantage of sustainable development from the source. Realizing the sustainable development of the whole life cycle of clothing is the future trend. Nowadays, with increasingly high requirements for an ecological environment, the development of biodegradable fiber will become the mainstream of fiber research and development. However, there are many barriers preventing the total degradation of biodegradable fabrics. This paper explores recycling barriers of biodegradable textiles in the clothing industry, discusses the recycling barriers from four aspects: technical, economic, environmental and social, and analyzes the development direction of biodegradable fabric recycling in the future and puts forward some suggestions, including developing advanced biodegradable fabric recycling technologies; creating economic models conducive to recycling; providing suitable degradation sites; strengthening institutional cooperation and improving consumer recycling behavior. This paper is conducive to promoting the development and application of biodegradable textile in clothing industry, and proposes further research for the widespread and high-quality use of biodegradable fabrics.

Cyclopropyl bromide is a significant pharmaceutical intermediate that plays a crucial role in the synthesis of various cyclopropyl drugs and quinolone drugs, including ciprofloxacin, enrofloxacin, and sparfloxacin. This review aims to explore the process of manufacturing cyclopropyl bromide, analyze the merits and drawbacks of some typical synthesis routes, and propose optimization strategies for each. Two synthetic pathways exist for the production of the crucial intermediate compound in the synthesis of the important intermediate of ciprofloxacin. Foreign literature has documented that the second pathway exhibits a high percent yield and it can be co-produced with norfloxacin and pefoxacin. However, the process conditions for the second route are not mature yet of which cyclopropyl bromide is considered one of the most important pharmaceutical intermediates. A mature process would be more suitable for the large-scale volume production of China's pharmaceutical industry. Consequently, the utilization of the second route is now scarcely used in China. The initial phase in the industrialization of the second pathway involves conducting a comprehensive analysis on the pharmaceutical intermediate cyclopropyl bromide. The synthesis of cyclopropyl bromide and the realization of the process can improve the productivity of quinolones.