1,107 research outputs found
Effect of Investment in Environmental Protection on Green Development of Industrial Enterprises: Evidence from Central China
China\u27s industrialization and urbanization process is advancing rapidly. While using natural resources, the country also generates a large amount of waste, causing serious environmental pollution and affecting further development of human society. Expanding the scale of investment in environmental protection has gradually become an effective means to address the problem. China is continuously increasing investment in environmental protection, actively improving environmental conditions, and achieving the dual goals of promoting high-quality development and environmental protection. Six provinces in central China were taken as research objects and the regional differences in their investments in environmental protection were analyzed. A panel entropy weight model was used to calculate the green development level of industrial enterprises, and a panel regression model was employed to calculate the impact of investment in environmental protection on the degree of influence of the green development of industrial enterprises. Results show that the six provinces in central China have significant differences in their investment in industrial environmental pollution control. The unreasonable allocation of environmental protection investment funds has led to the insignificant improvement of environmental pollution caused by industrial enterprises in the six central provinces of investment in environmental protection. R&D expenditure of industrial enterprises, the total import, and export volume of foreign-invested enterprises, and the fixed asset investment of the entire society have a positive role in promoting the green development of industrial enterprises. The added value of the secondary industry has a significant negative effect on the green development of industrial enterprises. Conclusions can be used as a reference for encouraging industrial enterprises to increase investment in environmental protection and promote green development
The Production-oriented Approach to Teaching English Writing in Chinese Junior High Schools
With the acceleration of globalization, English communicative competence has become a necessary ability in modern society. The teaching of English writing in junior high schools not only improves students’ comprehensive language ability, but also lays a favorable foundation for their future English learning. Writing classes should highlight the importance of writing. But in fact, students’ actual output is neglected. The writing classes exist in name only. Based on the above questions, this research attempts to apply the Production-Oriented Approach (POA) in junior high school English writing teaching which is proposed by Chinese scholar Wen Qiufang. This research aims to find the effectiveness of POA in English writing teaching of Chinese junior high schools. We adopt the experimental research approaches, using classroom observation, interviews and tests to collect research data. Taking a class of 50 students in Grade 8 of junior high school as the research subjects, the researcher carries out the production-oriented English teaching experiment for one semester. It has been found: (1) Compared with traditional English instructions, POA can improve the English writing quality and comprehensive language using ability of junior high school students. (2) Both teachers and students believe that POA can stimulate students’ positive emotional experience, and students have more opportunities to use language in class. Through “enabling”, the quality of students’ language output has been significantly improved
Information Production and Price Discovery in the Syndicated Loan Market
My dissertation studies information production and price discovery in the syndicated loan market. Over the past twenty years, collateralized loan obligations (CLOs) and the market-flex model have changed the landscape of the loan market. In the first chapter, I document that CLOs make up more than 60% of the investments in syndicated loans in recent years. A syndicated loan is in the portfolios of dozens of CLOs and they often disagree on the value of the loan. I examine how the disagreement affects the trading behavior of CLOs and the loan illiquidity in the secondary market. I find that such disagreement makes CLOs trade strategically by increasing trading frequency and decreasing trading amount. Dealers cannot differentiate the private signals in the market, which leads to the adverse selection concern and reduces the liquidity of a loan. Information possessed by dealers reduces the monopolistic power of diversely informed CLOs and attenuates the adverse selection concern. In the second chapter, we focus on the market-flex model and examine how lending relationship affects the pricing adjustments in the primary market of syndicated loans. Using a new dataset on loan pricing adjustments, we find that the lead bank makes fewer adjustments to the initial pricing terms of a syndicated loan and shortens syndication time when it has a stronger relationship with the borrower. A stronger relationship also reduces loan underpricing. A relationship lead bank relies less on information from syndicate members. Exogenous shocks to relationships caused by bank mergers and closures confirm our findings. We contribute to the literature by showing that relationship lending improves loan pricing efficiency. In the third chapter, we examine how the peer information benefits syndicate loan lending. We find that firms borrowing from and switching to their competitors’ banks pay lower loan spreads. The impact is stronger when the expected monitoring gains are higher and the expected costs are lower. A loan originated by a competitor’s bank has a lower share from the lead and experiences more frequent amendments. Our findings suggest that firms choose strategically to borrow from their competitors’ banks to reduce bonding costs
Flower heads in Asteraceae—recruitment of conserved developmental regulators to control the flower-like inflorescence architecture
Inflorescences in the Asteraceae plant family, flower heads, or capitula, mimic single flowers but are highly compressed structures composed of multiple flowers. This transference of a flower-like appearance into an inflorescence level is considered as the key innovation for the rapid tribal radiation of Asteraceae. Recent molecular data indicate that Asteraceae flower heads resemble single flowers not only morphologically but also at molecular level. We summarize this data giving examples of how rewiring of conserved floral regulators have led to evolution of morphological innovations in Asteraceae. Functional diversification of the highly conserved flower meristem identity regulator LEAFY has shown a major role in the evolution of the capitulum architecture. Furthermore, gene duplication and subsequent sub-and neofunctionalization of SEPALLATA and CYCLOIDEA-like genes in Asteraceae have been shown to contribute to meristem determinacy, as well as flower type differentiation-key traits that specify this large family. Future challenge is to integrate genomic, as well as evolutionary developmental studies in a wider selection of Asteraceae species to understand the detailed gene regulatory networks behind the elaborate inflorescence architecture, and to promote our understanding of how changes in regulatory mechanisms shape development.Peer reviewe
Control of biodegradation of a Mg alloy in simulated body fluid
Mg alloy AZ31 is an attractive candidate for coronary artery stents, as it possesses excellent biocompatibility in human body and good mechanical properties. However, AZ31 magnesium alloys generally have poor corrosion resistance in the body environment. This paper reports on the early stages of an investigation into the corrosion mechanism and the morphology of corrosion of AZ31 in simulated body fluid (SBF). The investigation will also consider ways of improving corrosion resistance of this alloy in SBF through the use of ionic liquids. The results to date have shown that AZ31 suffers severe localized pitting corrosion in SBF. The pits mainly develop adjacent to the Al-Mn intermetallic second phase in the α matrix. Energy Dispersive X-Ray Spectroscopy results revealed the presence of Mg, O, Ca, and P in the layer of corrosion product. Treatment of the AZ31 alloy prior to corrosion testing in SBF with the ionic liquid trimethyl (butyl) phosphonium diphenyl phosphate (P1444DPP) produced some increase in the corrosion resistance of the alloy
Improving the seismic performance of staircases in building structures with a novel isolator
A staircase provides the main escape way from a building in an emergency. Unfortunately, it may suffer severe damages or even collapse during an earthquake. For improving the seismic performance of staircases, this paper proposes an innovative staircase isolator with the features of lightweight, cost-effective and ease of construction and replacement, which is formed by suitable engineering plastic shims between rubber layers. A connection construction scheme is also proposed for the isolated staircase. Systematic performance tests have been carried out to characterize the isolator in terms of mechanic behavior and ultimate states. The test results show that mechanical properties of the proposed staircase isolator are excellent and suitable for staircase in building structure. In order to investigate the influence of staircase on building structural responses, time history analyses of a typical building structure without staircase (WS), with fixed staircase (FS) and with isolated staircase (IS) are conducted and compared within the environment of SAP2000. Results show that staircase isolation can effectively eliminate the diagonal bracing effect of staircase slab and make structural components uniformly stressed. When the novel isolator is employed for staircase in a building structure, there is no vulnerable position in staircase and the performance of staircase in building structure can be greatly enhanced
Numerical Modeling of Bank Erosion Processes and Its Field Application
Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv
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