Energy efficiency

The study aims to improve the safety and energy savings of IEVs during vehicle operation. First, the article builds a nonlinear dynamic model for IEVs, including electric motors, gearboxes, and braking systems.

7p vibenya 31-12-2024 1 0   Download

In this research, first-principle calculations have been performed to study the geometry structure and electronic properties of ZnO. All possible exchange-correlation energy functionals were used to perform geometry optimization of ZnO in order to find the efficient calculation conditions.

10p vibenya 31-12-2024 0 0   Download

Modern civilization is heavily dependent on energy, which burdens the energy sector. Therefore, a highly accurate energy consumption forecast is essential to provide valuable information for efficient energy distribution and storage. This study proposed a hybrid deep learning model, called I-CNN-JS, by incorporating a jellyfish search (JS) algorithm into an ImageNetwinning convolutional neural network (I-CNN) to predict weekahead energy consumption.

6p vibenya 31-12-2024 2 0   Download

Climate change has had significant impacts on the global climate, affecting the operational efficiency of buildings. This study employs future climate prediction methods based on the latest IPCC scenarios, using General Circulation Models (GCMs) to forecast climate conditions in three regions of Vietnam.

6p vibenya 31-12-2024 0 0   Download

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.

6p vibenya 31-12-2024 0 0   Download

Vấn đề năng lượng là vấn đề hàng đầu, rất quan trọng liên quan đến mọi thứ. Năng lượng ở miền Nam thường dùng thủy điện được năng lượng nhưng lại mất rất nhiều thứ như việc an cư sinh sống của người dân sống dọc 2 bờ sông rất khó khăn. Sử dụng năng lượng không biết tiết kiệm, ô nhiễm môi trường tác động đến môi trường sinh thái. Để nhận file powerpoint các bạn liên hệ vào facebook này của mình :https://www.facebook.com/Kientrucnv

78p kientrucnv 07-05-2012 512 259   Download

Consolidation of applications in cloud computing environments presents a significant opportunity for energy optimization. As a first step toward enabling energy efficient consolidation, we study the inter-relationships between energy consumption, resource utilization, and performance of consolidated workloads. The study reveals the energy performance trade-offs for consolidation and shows that optimal operating points exist. We model the consolidation problem as a modified bin packing problem and illustrate it with an example.

24p holy_ghost 05-04-2013 88 20   Download

Hệ số năng lượng hiệu quả EER-Energy Efficiency Ratio: tỉ số giữa năng suất lạnh tổng định mức và tổng công suất điện tiêu thụ tại điều kiện thử nghiệm. Đơn vị SI-w/w. Tiêu chuẩn thử nghiệm TCVN 6576-ISO 5151:2010 Hê số lạnh hiệu quả toàn mùa SEER/CSPF: Tỉ số giữa tổng lượng nhiệt mà ĐHKK lấy đi từ không gian điều hòa và tổng lượng điện tiêu thụ trong toàn bộ thời gian ĐHKK vận hành ở chế độ làm mát. Đơn vị SI -kWh/kWh. Ở Mỹ và Canada hệ số này gọi là SEER- Seasonal Energy Efficiency Ratio....

28p tuanhoangbank123 11-07-2013 146 17   Download

This work demonstrated the potential of US for mitigating membrane fouling. However, the integration of the US transducers within the membrane system will be a major challenge for the application of US in membrane cleaning. It is more appropriate that US is used as pre-treatment to the membrane system, the transducers can be placed prior to the coagulant feed line. Further work on the determination of the detailed mechanisms associated with enhancing coagulation would enable optimisation of the system with regard to process, cost and energy efficiency.

108p runthenight05 01-03-2023 16 3   Download

The purpose of the thesis is described as follows: To develop an independent simulation model for IEEE 803.2az Energy Efficient Ethernet Standards with Active and Idle modes of operations; To design and simulate a traffic source generator with exponentially distributed inter-arrival periods, and forecast the duration of the next idle periods, based in the distribution of packet arrivals; To extend the simulation of Dynamic power management in Access networks with the inclusion of prioritized traffic, which changes the duration of low power modes;…

141p runthenight07 01-03-2023 10 3   Download

The aim of this thesis is investigate and design a small antenna which can be embedded onto a Polyethylene substrate (used for making roof tiles). The antenna can be used to harvest ambient energy by connecting it to a rectifier. Due to the dimensional constraints of a roof tile as well as the materials used, there are limitations imposed on the antenna size, and thus the radiation efficiency and bandwidth often become a limiting factor in the overall performance of the system.

93p runthenight04 02-02-2023 13 2   Download

This 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.

765p runthenight04 02-02-2023 17 5   Download

Among the technological processes that require significant energy consumption, a significant role is played by the heating processes carried out by electric infrared heaters.

8p lucastanguyen 01-06-2020 14 1   Download

The use of solar energy has been adduced as an alternative way for generating electricity. This electricity is generated by solar panel but as temperature increases efficiency of panel decreases too. The main objective of this research paper is to minimize the use of the amount of water, electrical energy and required time needed for cooling of a solar panel.

12p tohitohi 19-05-2020 11 2   Download

Software-defined networking aims to change the inflexible state networking, by breaking vertical integration, separating the network’s control logic from the underlying routers and switches, promoting (logical) centralization of network control, and introducing the ability to program the network. Consequently, SDN is an important key for resolving aforementioned difficulties.

130p cotithanh000 07-10-2019 29 5   Download

Thesis supplementing and completing the theoretical basis of clean energy development law in Vietnam. Analyzing and evaluating the advantages and disadvantages of the clean energy development law. Providing a number of solutions to improve the clean energy development law and improve the implementation efficiency in practice.

27p bibianh 19-09-2019 48 3   Download

Objective of the thesis For the purpose of building a model of electrical generator for sea wave energy, the device operates efficient and in suitable to Vietnam's sea condition; determining the optimal damping coefficient of the generating motor, model parameters to received the maximum output power; design, fabrication of the electrical generator with the output voltages are 12 VDC, 220 VAC frequency 50 Hz and pure sine wave.

27p xacxuoc4321 08-07-2019 45 6   Download

A new baculovirus-based fluorescence resonance energy transfer (Bv-FRET) assay for measuringmultimerization of cell surface molecules in living cells is described. It has been demonstrated that gonadotropin-releasing hormone recep-tor (GnRH-R) was capable of forming oligomeric com-plexes in the plasma membrane under normal physiological conditions. The mouse gonadotropin-releasing hormone receptor GnRH-R was used to evaluate the efficiency and potential applications of this assay.

9p fptmusic 12-04-2013 58 4   Download

The efficiency of light harvesting in higher plant photosynthesis is regulated in response to external environmental conditions. Under conditions of excess light, the normally highly efficient light-harvesting system of photo-system II is switched into a state in which unwanted, potentially harmful, energy is dissipated as heat.

11p media19 06-03-2013 41 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Efficient manganese luminescence induced by Ce3+-Mn2+ energy transfer in rare earth fluoride and phosphate nanocrystals

5p sting05 09-02-2012 37 5   Download