451 research outputs found
The Rate And Process Of Mangrove Forest Expansion On Above- And Belowground Carbon Relations In Coastal Louisiana
Global climate change is a major environmental threat to natural and cultural resources in low-lying coastal zones and deltas worldwide. It is expected to have a significant effect on the development of coastal wetlands by changing species range expansion. In fact, recent studies have shown that there has been an increasing mangrove encroachment poleward in the Southern and Northern Hemispheres into temperate saltmarsh zones due to the lack of freeze events. This phenomenon could have a critical impact on the structure and function of tidal wetlands at critical latitudes, especially in carbon sequestration, since mangroves are thought to sequester more carbon than marshes due to their extensive roots, leaves, and branches. To understand this likely outcome of climate warming better, a study site was established in Port Fourchon, Louisiana, where mangroves are expanding into formerly saltmarsh-dominated habitat. The aim of this study was to estimate the rate and process of the conversion of marsh to mangrove and associated carbon sequestration of soils of historically saltmarsh or mangrove dominated cover in this locale. A chronosequence approach was used to compare carbon stores between mangrove and saltmarsh at different states of mangrove cover
THE UNIFORM EXPONENTIAL STABILITY OF LINEAR SKEW-PRODUCT SEMIFLOWS ON REAL HILBERT SPACE
The goal of the paper is to present some characterizations for the uniform exponential stability of linear skew-product semiflows on real Hilbert space
Some Solutions for Online Teaching of Literature at the Center of Vocational Education-Continuous Education
Pengajaran daring merupakan konten sentral dalam Arahan 800/CT-BGD?T tanggal 24 Agustus 2021 Kementerian Pendidikan dan Pelatihan tentang Pelaksanaan Tugas Tahun Pelajaran 2021-2022 dalam Penanganan Wabah Covid-19. terus menerapkan inovasi, bertahan dalam tujuan pendidikan dan pelatihan yang berkualitas. Pembelajaran Sastra online selama siswa tidak hadir di Sekolah Vokasi dan Pendidikan Berkelanjutan karena wabah Covid-19 bertujuan untuk menggantikan pengajaran tatap muka dan membantu Balai meningkatkan kualitas pengajaran. mempelajari dan menyelesaikan program pendidikan. Artikel ini menyebutkan beberapa kelebihan dan kekurangan belajar-mengajar Sastra online di SMK- melanjutkan pendidikan selama siswa absen dari pusat karena pandemi Covid-19. Dari situ, diusulkan beberapa solusi pembelajaran Sastra online selama siswa bolos sekolah di pusat karena wabah Covid-19 di Pusat Pendidikan Vokasi dan Pendidikan Berkelanjutan
Startup Learning Community Approach: Case Study in Vietnam
Group B: Quality of Education and Educational Polic
STUDY OF COPPER REMOVAL IN WATER BY ION EXCHANGE MATERIAL
In this study, sulfonation of polystyrene waste was investigated of the possibility of the removing Cu (II) ions in solution. Fourier transform infrared (FTIR) of sulfonation polystyrene waste was performed to study the material characteristics and the results showed the presence of sulfonic group bands. The efficiency of Cu (II) ion removal in ion exchange column experiments indicated that the quality of sulfonation of polystyrene waste depended on some factors as the reaction time, height of the column and the velocity of the flow rate. Ion exchange experiments were carried out with the columns of 8 and 6 mm internal diameter, of which 10 cm of column bed height in the 8 mm-diameter column obtained the highest efficiency of 74.13 % at 1 hr reaction time, and flow rate of 1.48 mL per min. The experimental data were consistent with Thomas and Yoon-Nelson kinetic models
Architecture Parallel for the Renewable Energy System
This chapter present one possible evolution is the parallel topology on the high-voltage bus for the renewable energy system. The system is not connected to a chain of photovoltaic (PV) modules and the different sources renewable. This evolution retains all the advantages of this system, while increasing the level of discretization of the Maximum Power Point Tracker (MPPT). So it is no longer a chain of PV modules that works at its MPPT but each PV module. In addition, this greater discretization allows a finer control and monitoring of operation and a faster detection of defects. The main interest of parallel step-up voltage systems, in this case, lies in the fact that the use of relatively high DC voltages is possible in these architectures distributed
Analysis of Corporate Governance Index Using ASEAN Balanced Score Card and Firm Performance
Governance plays a crucial role in most activities of socio-economic life. For any organizations, units, businesses or higher, a country, a community, the role of governance becomes more important than ever. For businesses, with globalization taking place and market becoming more competitive than ever, good Corporate Governance is now considered as a factor of success. Good corporate governance will help the company improve its ability to access to various sources of capital and operate more efficiently. However, in Vietnam particularly, Corporate Governance system still need to enhance and improve. Therefore, with the aim of surveying the current situation of Corporate Governance practices in Vietnam and giving the analysis of its impacts on businesses’ performance, this research is conducted from a sample of 60 listed-companies in both Construction and Food & Beverage industry for the time 2015, 2017 and 2018. By using the tool of ASEAN balanced scorecard to evaluate Vietnam Corporate Governance practices on 05 aspects: Rights of shareholders, Equitable treatment of shareholders, Roles of stakeholders, Disclosure and transparency and Board duties and responsibilities, the paper came to the low results of companies’ Corporate Governance practices in Vietnam. Based on this method, different relationships were found, one of which is the positive relationship between Corporate Governance Index and Tobin’s Q. Keywords: Asean Score Card, Corporate Governance Index, Performance DOI: 10.7176/RJFA/11-6-02 Publication date:March 31st 202
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