Mobile system

This paper proposes an output-capacitorless low-dropout regulator (OCL-LDO) with simple structure and fast load transient response for system-on-chip applications. The proposed OCL-LDO does not require output capacitance and remains stable at no-load condition.

10p viengfa 28-10-2024 0 0   Download

This presentation will introduce the smart urban formation process with ideas and operational models. At the same time, we will introduce a smart city rating system based on the role of urban government and the community; thus, we will find the existing and building of the development orientation. Finally, we will present a case study to applying smart city model in Hanoi capital, Vietnam in the trend of sustainable development in the future.

8p vibecca 01-10-2024 5 1   Download

NCHMF and JICA team decided development of mobile services as an activity of the JICA Project. The mobile service system displays the data of Automatic Rain Gauge (ARG) stations, radars and meteorological satellites and the extreme weather warning messages disseminated from the system are aimed at users nationwide.

11p vibecca 01-10-2024 1 1   Download

Due to the policy of the Doi moi in Vietnam started in 1986, Hanoi has undergone many important changes. Currently, Hanoi’s traffic is characterized by seemingly continuous motorcycle flows - a representative of high personal mobility in the context of rising incomes. Congestion, dust, pollution, insecurity, overload, etc., they are important keywords to describe Hanoi’s urban traffic. Hanoi has put in place a number of policies to improve the transportation system.

11p viyoko 24-09-2024 4 1   Download

In this paper, we numerically study the mobility of an unsaturated gravitational-granular flow, occurring on a slope-break system that contains two regions: Inclined-upstream and horizontal-downstream areas, by using three-dimensional discrete element simulations.

10p vifaye 20-09-2024 3 1   Download

This study presents a conceptual model combined with the technology acceptance model (TAM) and Push-Pull-Mooring (PPM) framework to identify the main determinants that affect customers' switching intention from cash payment to mobile payment in Vietnam. The results show that alternative attractiveness is the most impact pull factor, followed by mobility. Regarding push factors, low satisfaction and inconvenience of cash payment greatly influence both perceived ease of use and perceived usefulness.

18p toduongg 24-08-2024 5 0   Download

In this thesis, focus on the wireless links between devices equipped by deployed operating personnel and intermediary access point infrastructure. We use multi-radio (MR) platforms, wireless devices with multiple and diverse transceiver technologies, to produce robust and reliable links through adaptive control of available transceivers. Primarily, we study the application of intelligent control techniques, namely reinforcement learning (RL), for adaptive control over diverse transceivers to achieve the desired robustness and reliability under dynamic environmental conditions.

185p runthenight04 02-02-2023 7 2   Download

This project is focused on studying the biological effects of low-power RF radiation on the expression and function of mechanosensitive ion channel protein (Piezo-1). To evaluate the effects of long-term exposures, cells were exposed at the frequency of 1800 MHz and power of 17 dBm for a period of 2 and 4 hrs using the transverse electromagnetic (TEM) cell exposure system. To study the effects of short-term RF radiation (10 min), exposures emitted from the mobile phone headset at the frequency of 845 MHz and powers of -15 dBm and -5 dBm were applied to cell cultures.

141p runthenight04 02-02-2023 8 3   Download

Modelling the diffusion of mobile commerce in a country is a difficult task due to the non-linear, complex and uncertain nature of its operating environment. Conventional analytical techniques are of limited use in this context, and a System Dynamics approach is more appropriate to model such a complex system.

295p runthenight04 02-02-2023 8 3   Download

Bài viết "Thiết kế và thực hiện cổng chuyển đổi LoRa - GSM giám sát các nút dựa trên công nghệ LoRa" đã thiết kế và thực hiện cổng chuyển đổi (Gateway) LoRa– GSM (Global System for Mobile Communications) tích hợp màn hình cảm ứng HMI (Human Machine Interface), để giao tiếp với người vận hành thay thế cho một máy chủ LoRa. Mời các bạn cùng tham khảo bài viết!

9p phuong62310 31-01-2023 12 4   Download

This project "Examining changes in sensitivity and functionality of mechanosensitive ion channel protein Piezo 1 exposed to Low-Level Radiofrequency Radiation" is focused on studying the biological effects of low-power RF radiation on the expression and function of mechanosensitive ion channel protein (Piezo-1). To evaluate the effects of long-term exposures, cells were exposed at the frequency of 1800 MHz and power of 17 dBm for a period of 2 and 4 hrs using the transverse electromagnetic (TEM) cell exposure system.

141p runordie3 06-07-2022 9 3   Download

Bài 10: Ví dụ về hệ thống nhúng mobile robot. Những nội dung chính trong chương này gồm có: Mobile robot, sơ đồ khối mobile robot (e-punk), tổng quan về e-punk, kết cấu cơ khí, mạch điện tử, thiết kế layout (PCB 4 lớp), DSP và các biến thể,... Mời các bạn cùng tham khảo.

23p lovebychance03 13-07-2021 45 9   Download

Overall objective: Based on the proposed theoretical basis, the thesis analyzes the current situation and from that proposes solutions for investment capital for marine economic development in the South Central region in the coming time.

27p themeg 02-06-2021 58 4   Download

A study on species composition and density of polychaete (Polychaeta) was investigated in mangrove eco-system, Da Loc commune, Hau Loc District, Thanh Hoa province. Samples were collected in April, July, and November, 2010, from cross-sections of Len estuary and mangrove forests. A total of 15 polychaete species, belonging to 11 genera, 9 families and two groups of settlers (Sedentaria) and mobile (Errantia), were recorded in the study areas.

8p tamynhan9 02-12-2020 14 2   Download

This article deals with the development of means and ways to reduce the level of pollutants in the atmosphere through the use of CCS NT. The basic approach is information support in the construction of CCS NT while problems are associated with the automation aspect that is a part of the CCS NT design.

6p tamynhan8 04-11-2020 10 2   Download

Researching methods of controlling pan-tilt tracking moving target using image information from 2 cameras with many uncertain parameters. Developing algorithms for controlling integrated system include mobile robot, pan-tilt and two cameras tracking moving targets.

27p gaocaolon6 30-07-2020 77 4   Download

This paper explores the effect of cloud based mobile learning on education competencies of engineering students.

8p lucastanguyen 01-06-2020 25 2   Download

This paper focuses on the study of customer preferences and its related factors regarding Android Mobile Applications which is both exploratory and descriptive. Anova, a statistical tool was used to test the hypothesis.

11p guineverehuynh 22-06-2020 7 0   Download

In this study, behaviors of gas inside the extraction chromatography column were investigated through experiments and Computation Fluid Dynamics (CFD) simulation. N2 gas once accumulated as bubbles in the packed bed was hardly discharged by the flow of mobile phase.

8p christabelhuynh 31-05-2020 9 1   Download

The thesis aims to propose some control techniques for mobile target Robot-camera. After that, I studied some of the torque control techniques of joints for the Robot-camera system sticking to the mobile target and the Robot-camera system, paying attention to the motivating motor sticking to the mobile target. Finally, the author also proposed some control algorithms for Robotic-camera arm system with irregular model, external noise and preventing system degradation, using nonlinear sliding controller (TSMC) in combination with Artificial neural networks to estimate uncertain numbers.

31p xacxuoc4321 09-07-2019 28 2   Download