0 trang
30 lượt xem
2 lượt tải
Efficiency
Summary of the Doctoral thesis in Economics: Agricultural land use efficiency in Phu Tho provincePropose solutions to improvement of agricultural land use efficiency during agricultural and rural development towards efficiency and sustainability in Phu Tho Province in a scientifically reasonable manner.
Mutagenic effectiveness and efficiency of gamma rays, EMS and NG in greengram (Vigna radiata L. Wilczek)An experiment was conducted to study the effectiveness and efficiency of one physical mutagen i.e. gamma rays and two chemical mutagens i.e. ethyl methanesulfonate (EMS) and nitrosoguanidine (NG) in greengram. To study the nature and effect of mutagens in greengram, the percentage of lethality, pollen sterility, frequency of chlorophyll mutations, mutagenic effectiveness, mutagenic efficiency and mutation rates of each mutagen were estimated.
9 trang
19 lượt xem
3 lượt tải
Abstract in economics: Methods of improving argricultural development efficiency in mountainous areas of Thanh Hoa provinceThe objectives of the thesis are to propose orientations and solutions to develop and organize agricultural production in mountainous regions of Thanh Hoa until 2025 in the direction of efficiency improvement and sustainable development; simultaneously, provide more scientific basis for formulation of policies of economic and social development in general and in particular.
27 trang
12 lượt xem
1 lượt tải
Summary of Doctoral thesis in Economics: Completing analysis of business performance in listed seafood companies in VietnamThe content of the thesis presents the current situation of business efficiency analysis in listed seafood companies in Vietnam; complete solution to analyze business efficiency in listed seafood companies in Vietnam.
Trên cơ sở hệ thống lý luận, các quan điểm về HQKD, tổ chức phân tích, phương pháp, nội dung phân tích HQKD và kết quả điều tra khảo sát, nghiên cứu thực trạng phân tích HQKD tại các công ty Thủy sản niêm yết ở Việt Nam
24 trang
57 lượt xem
1 lượt tải
Doctoral thesis summary: A study on improving working capital management efficiency of steel companies in VietnamThe above situation requires a comprehensive and systematic study on the WCM efficiency of steel enterprises in recent years, thereby, specifying the shortcomings and causes to the efficiency of WCM, and proposing solutions to improve the WCM efficiency of steel enterprises in the coming time. The research is conducted in order to propose solutions to improve WCM efficiency of steel companies in Vietnam.
27 trang
34 lượt xem
4 lượt tải
Summary of Doctor thesis: Research on improving economic - Technical efficiency of prop equipment using in underground coal mining in Quang Ninh areaBuilding basis of science and reality for economic - technical efficiency of PE using solutions in CM in Quang Ninh area, to make contribution to increase efficiency of coal production and coal business.
27 trang
40 lượt xem
4 lượt tải
Summary of the thesis: Influences of internal control on operational efficiency and regulatory compliance in the enterprises directly under Vietnam forest corporationThe research objectives of the thesis are to identify the characteristics of the enterprise; the situation of internal control in enterprises; determine the relationship between internal control and performance and regulatory compliance in enterprises; propose solutions to improve internal control to help businesses achieve operational efficiency and comply with regulations.
0 trang
28 lượt xem
3 lượt tải
Doctoral thesis of Philosophy: Residential energy efficiency and health – A mixed methods study of a quasi‐randomised controlled trial of energy efficiency improvements of the homes of low‐income Home and Community Care recipients near Melbourne, AustraliaThis thesis contributes to a better understanding of the relationship between residential energy efficiency and health. The thesis argues that residential energy efficiency improvements are complex interventions in complex socio‐technical systems. Informed by critical realism and the pragmatic pursuit of ‘what works’, the thesis suggests that the designs of residential energy efficiency improvements for health need to address the dynamic interactions between the physical quality of the building, the practices of householders in using the dwelling as a home, and contextual conditions to achieve optimal outcomes.
765 trang
24 lượt xem
5 lượt tải
Survey on sleep quality and related factors among nursing students at Can Tho University of medicine and pharmacy in 2023Sleep quality is commonly defined in terms of total sleep time, onset latency, sleep efficiency and others. Sleep disturbances are a common health complaint that is expected to surge and have more important consequences in adults, especially in health science students, namely nursing students and midwifery students. Moreover, we have recorded a few studies that have been carried out on sleep quality.
6 trang
5 lượt xem
1 lượt tải
Electronic Circuits - Part 2 - Chapter 11 Frequency ResponseThe need for operating circuits at increasingly higher
speeds has always challenged designers. From radar and
television systems in the 1940s to gigahertz microprocessors
today, the demand for pushing circuits to higher frequencies
has required a solid understanding of their speed limitations.
In this chapter, we study the effects that limit the speed
of transistors and circuits, identifying topologies that better
lend themselves to high-frequency operation.
25 trang
70 lượt xem
4 lượt tải
Electronic Circuits - Part 2 - Chapter 12 FeedbackFeedback is an integral part of our lives. Try touching your fingertips with your eyes closed; you may not succeed the first time because you have broken a feedback loop that ordinarily “regulates” your motions. The regulatory role of feedback manifests itself in biological, mechanical, and electronic systems, allowing precise realization of “functions.” For example, an amplifier targeting a precise gain of 2.00 is designed much more easily with feedback than without.
16 trang
49 lượt xem
4 lượt tải
Electronic Circuits - Part 2The reader may wonder why the amplifier stages studied in previous chapters are not suited to high-power applications. Suppose we wish to deliver 1 W to an 8- speaker. Approximating the signal with a sinusoid of peak amplitude VP, we express the power absorbed by the speaker as:
82 trang
49 lượt xem
7 lượt tải
Using virtual experiments in teaching the topic of "Acid-Base-pH-Oxide-Salt" in grade 8 natural science to enhance student learning outcomesThis study will assess the effectiveness of using AR tools to design virtual experiments combined with methods and tools to deploy virtual chemistry experiments in teaching the topic of "Acid - Base - pH - Oxide - Salt" in Grade 8 Natural Science to enhance student learning outcomes and interest in Natural Science education.
10 trang
4 lượt xem
1 lượt tải
Strategic management of renewable energy enterprises: A PSM and PLS-SEM approach to sustainable business models in VietnamIt aims to evaluate the causal impacts of strategic management practices, investigate the mediating roles of innovation capabilities and operational efficiency, and provide actionable insights to foster sustainable business models and green economic growth in Vietnam’s renewable energy enterprises.
10 trang
10 lượt xem
1 lượt tải
A study on the effectiveness of single-layer and three-layer stacking in luminescent solar concentrators using inorganic phosphor filmsThis study investigates the performance of luminescent solar concentrators (LSCs) using inorganic phosphor films. We examined both single-layer and three-layer stacking configurations on BK7 glass substrates (5 cm × 5 cm × 5 mm), using red, yellow, and green phosphors.
9 trang
12 lượt xem
2 lượt tải
Efficiency enhancement of photovoltaic solar cell system using phase change material (PCM)In the present study, cooling of PV module using a paraffin-based phase change material (PCM) in hot climate of Vietnam is investigated. Thermal modelling is first validated against experimental data reported in literature and then transient thermal simulations are carried out for a duration of 24 hours to assess the effect of PCM itself and PCM with internal fins.
6 trang
8 lượt xem
2 lượt tải
Summary of doctoral thesis: Improve the performance efficiency of public transport system in urban areasSystematize and clarify the rationale of performance efficiency of public transport system in urban areas; Analyze the status quo of system performance and suggest solutions to improve performance efficiency of Hanoi bus system, concentrated on performed solutions.
27 trang
86 lượt xem
6 lượt tải
Development and performance evaluation of a high-efficiency micro led display using planarization and electrodeless shielding techniquesThis paper presents the development and performance evaluation of a novel micro LED display achieved through innovative planarization and electrodeless shielding techniques. The study focuses on achieving uniform forward voltages across the entire display panel, ensuring consistent performance and optimal light output.
6 trang
12 lượt xem
1 lượt tải
Evaluation of nitrogen use efficiency and N-supplying capacity on pomelo (Citrus grandis L. Osbeck) grown on alluvial soil in the Cuu Long DeltaThe study was conducted to determine the nitrogen use efficiency (NUE) and the ability to provide nitrogen from alluvial soil for growing pomelo (Citrus grandis L. Osbeck) in the Mekong Delta. The experiment was arranged in a randomized complete block design including two treatments (NPK treatment: 673 N - 385 P2O5 -192 K2O g/plant and PK treatment: 0 N - 385 P2O5 - 192 K2O g/plant) and three replicates (3 plants for each replicate).
10 trang
5 lượt xem
2 lượt tải
Chịu trách nhiệm nội dung: Nguyễn Công Hà. ©2025 Công ty TNHH Tài Liệu trực tuyến Vi Na.
Địa chỉ: 54A Nơ Trang Long, P. Bình Thạnh, TP.HCM - Điện thoại: 0283 5102 888 - Email: info@tailieu.vn
Giấy phép Mạng Xã Hội số: 670/GP-BTTTT cấp ngày 30/11/2015