Cellular Phone - Science topic

Surveyors often encounter challenges when tasked with measuring points in regions where buildings disrupt satellite visibility. The precise surveying of points in these areas typically relies on employing total stations. This method effectively extends high precision from unaffected zones (where satellite visibility is assured) to those areas where...

This article presents a review of several microstrip patch antennas for 3.5 GHz wireless applications. Different substrate materials, FR-4 (loss), FR-4 Epoxy, Rogers RT/droid 5880, TLC-30, and Rogers RT/droid 5880 LZ, are used. In recent years, wireless antenna applications have increased, including biomedical appliances, internet of things (IoT) t...

This research designs, analyzes, and studies a 2.45 GHz rectangular microstrip patch antenna (RMPA). The antenna design uses Rogers RT5880 (lossy) substrate material with 2.2 dielectric permittivity, 1.5 mm thickness, and 0.0009 loss tangent. Additionally, the antenna was designed and simulated using computer simulation technology (CST) studio 2019...

In order to improve performance and avoid overheating on mobile devices, precise thermal control with low overhead is crucial. To achieve this, we propose incorporating a PMC-based power model into thermal control, which enables more accurate evaluation of the CPU’s power consumption. We demonstrate the plausibility of this approach using polynomia...

The study on Pop Culture and English Language Motivation was a descriptive correlational study conducted among the ninety-five (95) AB-English students at the University of Mindanao-Matina Campus, Davao City. This study aims to discover the prevalent relationship between the use of pop culture and English language learning motivation. Adopted quest...

The aim of this scientific research was to identify the level of awareness of our high school students about high-risk behaviors to which they are exposed, in order to highlight the weak points which will serve as topics for further research. This is a descriptive, quantitative and qualitative, retrospective study. The population of the study consi...

This paper proposes a new control method for loss reduction of two series buck converters. The proposed method can be applied to each series of buck converters with two power switches. To enhance the efficiency of the converter compared to other structures, a method based on determining operating cycles for loss reduction is employed, leading to in...

The company 2023. LTD requested scientific validation of its product Areca Plus Card™, which allegedly protects the user from microwave mobile phone radiation. Validation was done via testing on human organisms following clinical research conditions. In the testing, volunteers were exposed to mobile phone radiation while being exposed to the produc...

Advancements in technology are currently expediting the learning process for students, prompting an investigation into the integration of technology into student education. This study explores the impact of technological evolution on education. E-learning, a method of education that delivers information to students through modern communication plat...

This study investigates how enhancing information and communication technology (ICT) affects female economic participation in sub-Saharan African nations. Three female economic participation indicators are used, namely female labor force participation, female unemployment and female employment rates. The engaged ICT variables are: fixed broadband s...

This project presents the development of a GSM mobile phone utilizing the ATMEGA328P microcontroller and the SIM800L GSM module. The objective is to create a compact and cost-effective mobile communication device that leverages the versatility and programmability of Arduino for diverse applications. The system comprises an Arduino i.e., ATMEGA328P...

The global digital divide is sometime presented as the primary obstacle to developmental convergence between world regions. On the other hand mobile phone and internet technology are at times seen as transformative innovations that are dissolving this development divide. Through secondary data (such as on usage from Internet World Stats) and case e...

Despite concerns having been voiced internationally about the validity and reliability of mobile phone evidence, there remain large gaps in our understanding of how police acquire and process mobile phone data, and the risks associated with this work. This paper fills some of these gaps by drawing upon qualitative data gathered during an ethnograph...

A new, simple, and selective colorimetric method of determining formaldehyde in Hevea brasiliensis latex was developed by using a casein/ferric chloride/polyvinyl alcohol hydrogel composite (casein/FeCl3/PVA) in a modified Leach test. Under heating, formaldehyde reacted with 8% casein in the presence of 0.1% FeCl3 and 4.3% HCl (v/v) entrapped in a...

Demystifying the importance of attributes of smartphone among gen z applying kano model and conjoint analysis. ABSTRACT India's smartphone shipments grew 23% YoY to reach over 38 million units in Q1 2021. New product launches, promotions and financial schemes, as well as pent-up demand coming from 2020, drove the smartphone market in Q1 2021. India...

The aim of the paper is to describe an EEG recording technique and presentation of the most common EEG artifacts, visual analysis of pathways and physiological graphoelements during sleep in healthy dogs under xylazine-ketamine anesthesia. Transient physiological events occur during sleep, overlap background activity and are represented by: sleep s...

The recent growth of e-commerce sector and the advent of modern technologies have led to a paradigm shift in the buying pattern of consumers from conventional shopping to online shopping. Internet accessibility has become much easier through modern equipments' such as mobile phones, tablets, laptops, etc. People desire a fast-paced existence in tod...

The emergence of big data has brought the "double divide" dilemma of urban-rural divide and gray divide to the digital divide problem of the aging of migrant workers. In 2021, Chinese scholar Chen Yunsong published Big Data Vision of Humanities and Social Sciences from a Social Perspective. Based on the quantitative research theory at the individua...

Time series of traffic flows, extracted from mobile phone origin–destination data, are employed for monitoring people crowding and mobility in areas subject to flooding risk. By applying a vector autoregressive model with exogenous covariates combined with dynamic harmonic regression to such time series, we detected the presence of many extreme eve...

Background and Objective: Non-ionizing electromagnetic radiation (NI-EMR) is a form of electromagnetic radiation that lacks the energy to ionize atoms or molecules, unlike ionizing radiation such as X-rays and gamma rays. In recent years, the widespread use of electronic devices emitting NI-EMR, such as mobile phones, Wi-Fi routers, and various wir...

Digitization has such a complex impact on public and private life, fundamental rights, competitiveness and public services, of which the article only examines the implementation of the EU digital transformation in Hungary. In the context of digitalisation, a significant issue is that the criteria for technical-technological standardization and legi...

State-of-the art Text-To-Music (TTM) generative AI models are large and require desktop or server class compute, making them infeasible for deployment on mobile phones. This paper presents an analysis of trade-offs between model compression and generation performance of TTM models. We study compression through knowledge distillation and specific mo...

Mental health disorders are one of the biggest threats to human health, especially urban people. Despite the importance of urban mental health, the ways to improve it are unknown. This issue has gained multiple importance in the city of Tehran, which has a serious need to apply these solutions. This research was done with the aim of determining the...

The current research in education is focusing on exploring various reforming ideas about classroom management. Therefore, dealing with disruptive and challenging behavior in the classroom is of significant concern to teachers. The behaviors generally identified in this research ,as of most concern to college teachers include non-compliance ,not-lis...

Background This study aimed to measure the preferences for mental health support among health professionals, their willingness to support the mental health of colleagues and associated factors. Method A descriptive cross-sectional study was performed from August to October 2022 within five hospitals located in Hanoi, Vietnam. A total of 244 health...

Timely and accurate detection and identification of species are crucial for monitoring wildlife for conservation and management. Technological advances, including connectivity of camera traps to mobile phone networks and artificial intelligence (AI) algorithms for automated species identification, can potentially improve the timeliness and accuracy...

In this fast pacing interconnected world where communication plays a vital role bringing the geographical borders and people together by exchanging information, trade and help in the societal progress. However, still a significant portion of the global population remains excluded due to the high-costing traditional infrastructure. This paper propos...

Abstract Speeding is a major threat on our roads, contributing significantly to traffic accidents, injuries, and fatalities. Daily, accidents occur due to drivers exceeding speed limits, often resulting in severe injuries. Current vehicle speed detection methods such as radar detectors, speed limiters, lasers, and visual estimations have limitatio...

Purpose This study aimed to evaluate the accuracy of a Bluetooth position monitor called NaTu sensor and its mobile phone application for detecting sleep position among patients with obstructive sleep apnea (OSA) during polysomnography (PSG). Methods A cross-sectional study was conducted on adults with suspected of having OSA who underwent PSG. Sl...

The key requirement of this study is to analyse user's acceptance of Quick Response (QR) code mobile driven payment systems, in considering the Sri Lankan populations widespread use of mobile phones and other mobile devices. The current research has been derived by using the UTAUT2 (Unified Theory of Acceptance and Use of Technology) model. This st...

In the industrial era, production equipment serves as an essential mother machine. In the global manufacturing industry, components such as laptop computers, mobile phones, and automotive parts all strive for aesthetic appearance. Taiwan’s machine tool industry plays a significant role globally. Faced with the constantly changing market environment...

Mobiles are becoming a part of our daily life and the usages of mobile phones are increasing day by day to simplify our lifestyle. The charging in the battery is very important to operate the mobile. However, the availability of charging points is very difficult to find in public places including bus stands, railway stations, most populated areas e...

The project aims to assemble and program a hexacopter drone that can serve the purpose of surveillance in terrains and the delivery of medical kits in remote locations autonomously. Delivery of medical kits using drone technology resolves traffic issues faced by the ambulance during medical emergencies on the other hand drone technology also helps...

Stereoscopic cameras, such as those in mobile phones and various recent intelligent systems, are becoming increasingly common. Multiple variables can impact the stereo video quality, e.g., blur distortion due to camera/object movement. Monocular image/video deblurring is a mature research field, while there is limited research on stereoscopic conte...

In an increasingly advanced world, people have valuable documents and personal items such as cell phones, laptops, power banks, especially for people who work in office areas because they really need these valuable items for work purposes. However, there are several things that become problems when bringing these valuable items to the office where...

Urban spatial interactions are a complex aggregation of routine visits and random explorations by individuals. The inherent uncertainty of these random visitations poses significant challenges to understanding urban structures and socioeconomic developments. To capture the core dynamics of urban interaction networks, we analyze the percolation stru...

Objective The present study aimed to evaluate the efficacy of a mindfulness-based cognitive therapy (MBCT) intervention in reducing problematic mobile phone use, depression, and sleep disorders among adolescents. Additionally, it sought to investigate whether the decrease in problematic mobile phone use acted as a mediator in the relationship betwe...

There is growing evidence that weather alters SARS-CoV-2 transmission, but it remains unclear what drives the phenomenon. One prevailing hypothesis is that people spend more time indoors in cooler weather, leading to increased spread of SARS-CoV-2 related to time spent in confined spaces and close contact with others. However, the evidence in suppo...

Due to the swift advancement of information technology and the enhancement of domestic informatization construction, mobile phones have become an essential instrument in people's lives, and their widespread adoption and integration of mobile phones have significantly altered people's way of living. The competition among mobile phone carriers has in...

Background and Aim: With the development of informatization and industrial structure adjustment, the service sector has become an important pillar of many developed countries. However, compared with developed countries, China's service sector doesn’t account for a high proportion of GDP. As a developing country, China still needs foreign capital in...

Understanding temporary migration is crucial for addressing various socio-economic and environmental challenges in developing countries. However, traditional surveys often fail to capture such movements effectively, leading to a scarcity of reliable data, particularly in sub-Saharan Africa. This article introduces a detailed and open-access dataset...

One of the most time‐sensitive and critical tasks for first responders in the aftermath of a disaster is to locate people for effective and successful rescue operations. The existing solutions for large‐scale location detection of citizens depend on expensive equipment that may not be readily available in many urban areas and also cannot cover a va...

Today, with the increasing use of the internet, the importance of word-of-mouth marketing has become more evident. People now have fewer face-to-face interactions compared to the past and utilize social networks to share their experiences more quickly and at a lower cost. This research aims to examine the impact of "viral marketing" on "brand equit...

In previous research on the development of the relationships between product attributes and customer satisfaction, the models did not adequately consider nonlinearity and the fuzzy emotions of customers in online reviews. Also, stable customer satisfaction was considered. However, customer satisfaction is changing with time rapidly, and a time-seri...

Background The aim of this study was to classify distinct subgroups of adolescents based on the severity levels of their mobile phone addiction and to investigate how these groups differed in terms of their psychosocial characteristics. We surveyed a total of 2,230 adolescents using three different questionnaires to assess the severity of their mob...

The rapid progress of information technology has led to a steady rise in the diversity and ubiquity of smartphones. College students are increasingly using cell phones to access social media, as they are no longer under parental control. Therefore, the harmful effects of excessive smartphone usage are becoming increasingly noticeable, resulting in...

The sunlight readability of display devices, such as notebook computers, transparent displays, vehicle displays, and augmented reality, is a significant technical challenge due to degraded image quality. To mitigate this problem, by fitting the human eye function, we propose a tone mapping method on a mobile phone display panel to enhance low grays...

Technological surveillance for the sake of safeguarding public safety (e.g., cameras, sensors, mobile phones, OSINT) pervades the lives of individuals on many levels. In this article, we advance the idea that the addition of AI changes the way surveillance ecologies function and thus deserves to spawn its own concept: the surveillance AI-cology. Su...

[IMPORTANT: Abstract, method, and results were written using a randomized dataset produced by Qualtrics to simulate what these sections will look like after data collection. These will be updated following the data collection. For the purpose of the simulation, we wrote things in past tense, but no pre-registration or data collection took place yet...

Although mobile phones can provide temporary sensory pleasure to satisfy people’s psychological needs, prolonged use of mobile phones may lead to unpleasant and even empty feelings. Thus, this study constructed a chain mediating model to examine the relationship between mobile phone addiction and emptiness among Chinese college students. A sample o...

Agricultural information is a key component in improving small-holder agricultural production and linking increased production. Improvements in agricultural productivity are realized when farmers are linked to agricultural information. The objective of this study was to establish the available mobile phone-enabled services relevant for accessing ag...

By deploying machine learning (ML) and deep learning (DL) algorithms, we address the problem of smell event modelling in the Pittsburgh metropolitan area. We use the Smell Pittsburgh dataset to develop a model that can reflect the relation between bad smell events and industrial pollutants in a specific urban territory. The initial dataset resulted...

Corporate activism is an important tool to bring attention to societal issues. While it can have many benefits, it also comes with risks, such as alienating a relevant share of a firm’s consumers. In this study, we use mobile phone geolocation data to examine how firms’ LGBTQ+ activism influences consumer behavior. Our results suggest that LGBTQ+ a...

Les téléphones portables sont devenus essentiels dans la vie quotidienne, permettant de rester en contact avec amis, proches et collègues. Cependant, ils représentent une menace pour les délinquants, car ils peuvent être utilisés pour les localiser et surveiller leurs communications. Les forces de l'ordre tirent parti de ces dispositifs pour obteni...

This article aims to understand the critical points in the experiments of the photo-taking-impairment effect, normally researched in the act of photographing, with the use of an artifact in recognition of styles and elements in AI. For the development of the experiment, a heritage route was simulated in the UEL Smart Campus, such as Living Lab, wit...

The purpose of the article is to analyze temporary changes in human gait, the parameters of which are recorded using the accelerometer of a mobile phone in everyday use. The work presents trends in the field of personalized medicine and monitoring the health of employees in the manufacturing sector based on wearable and mobile devices. The features...

The ground-breaking paradigm of artificial intelligence (AI) will provide universal access to sixth generation (6G) edge computing-based E-healthcare. Internet world, where people and their personal gadgets like laptops, wearables, and cell phones, play a major role in facilitating the healthcare environment, is home to the cyber physical system (C...

This study assessed vaccination coverage and associated factors among children aged 12-23 months in the pastoralist Ethiopia. It was conducted in three woredas of the Afar region using a community-based cross-sectional mixed methods design with quantitative and qualitative methods. A total of 413 mothers with children aged 12-23 months participated...

The global SARS-CoV-2 pandemic prompted nations to implement mobility limitations to curb virus spread. In Chile, targeted interregional measures were employed to mitigate the social and economic costs. Here, we employ a novel real-time methodology to assess the impact of such mobility restrictions on epidemic control. Leveraging telecom-derived eX...

Despite the importance of measuring racial-ethnic segregation and diversity in the United States, current measurements are largely based on the Census and, thus, only reflect segregation and diversity as understood through residential location. This leaves out the social contexts experienced throughout the course of the day during work, leisure, er...

The powertrain in electric vehicles typically comprises various components, including lithium-ion batteries (LIBs), a battery management system, an energy converter, an electric motor, and a mechanical transmission system. Electric vehicles utilize the electrical energy stored in LIBs to efficiently drive the motors efficiently. LIBs find widesprea...

The advancement in the banking transaction system over the years has been enormous, and the needs for identifications of customer's authentication, validation and confirmation are of utmost priority and should be dealt with judiciously. Mobile banking has emerged as one of the main division in digital world of financial transactions and consists of...

This study taking physical activity (PA) as the independent variable and autistic traits (AQ) as the dependent variable, we explored the relationship between the three in depth, further verified the mediating role of mobile phone addiction (MPA ) between the two , and constructed a hypothesized mediation model of mobile phone addiction in the relat...

In the West African country of Ghana, depression is a significant issue affecting a large number of women. Despite its importance, the issue received insufficient attention during the COVID-19 pandemic. In developed countries, mobile phones serve as a convenient medium for accessing health information and providers. However, in Ghana, women's acces...

The term of big data was used since 1990s, but it became very popular around 2012. A recent definition of this term says that big data are information assets characterized by high volume, velocity, variety and veracity that need special analytical methods and software technologies to extract value form them. While big data was used at the beginning...

With the recent advancements in wireless communication systems, the allocated frequency band spectrum has effectively alleviated congestion for cell phone operators, industrial communication services, and other stakeholders. One potential solution is to explore innovative techniques within mobile devices that facilitate ultra-wideband (UWB) capabil...

The term socioeconomic refers to the interaction between the social and economic habits of a group of people. Social economics is primarily concerned with the interplay between social processes and economic activity within a society. Social economics is a branch of economics and a social science that focuses on the relationship between social behav...

Background: Social media is an online communication tool that is now a necessary component of our everyday existence. It enables people to communicate, exchange data, and produce web content. This article aims to display the effect of social media on academic performance, social interaction, and mental health among a sample of Iraqi university stud...

En México, durante la contingencia por la pandemia de COVID-19, las personas con discapacidad enfrentaron diversas dificultades en el rubro educativo. El objetivo de este trabajo fue describir las características y problemáticas en el acceso y uso de tecnologías digitales que, durante las clases en línea del ciclo escolar 2020-2021, refirieron fami...

OBJECTIVE: Monitoring Jack-son Pratt and Hemovac drains plays a crucial role in assessing a patient's recovery and identifying potential postoperative complications. Accurate and regular monitoring of the blood volume in the drain is essential for making decisions about patient care. However, transferring blood to a measuring cup and recording it i...

After apple fruit maturation, the optimal harvest period is short, and the picking robot is expected to improve harvesting efficiency. While it is common for apples to be overlapped and occluded by branches and leaves, which pose challenges to the robot’s apple harvesting. Therefore, precise and swift identification and localization of the target f...

In this study, we primarily assess the relationship between social safeguards and the living standards of local communities in different ecological zones of Ghana. This research aims to assist policymakers and stakeholders to make informed and appropriate decisions when developing social safeguards for emission reductions projects. Principal compon...

Despite a considerable increase in improved maize variety releases in Uganda, the proportion of households growing improved maize seed is still low. The study determined the welfare effect of adoption of improved maize varieties among farming households in Uganda. Four waves of the UNPS were used to construct a panel dataset with 15,432 observation...

ICT permeates all aspects of life, providing newer, better, and quicker ways for people to interact, network, seek help, gain access to information, and learn. The term ICT simplified means any technology that has to do with information and communication. Making the transition from traditional textbook learning and instructor-led classroom courses...

Preserving students' engagement and drive in a digital setting poses a formidable obstacle for instructors, particularly amidst the pandemic. Due to the COVID-19 pandemic, teachers have been required to modify their instructional approaches and devise novel tactics to promote academic involvement. This study conducted action research to assess the...

Introduction: Chronic Obstructive Pulmonary Disease (COPD) significantly impacts on both the quality and quantity of life for patients due to frequent exacerbations requiring hospital admissions resulting in increased morbidity and mortality. A self-management programme purpose is to increase one’s knowledge, confidence, and skills to self-manage t...

In Myanmar, over 100 ethnic groups live together and there exists diverse marriage patterns in rural and urban living areas. This paper explores the impact of exposure to information technology on marriage trends among Urban Karen, Chin, Danu in Myanmar. After Democracy of 2010 in Myanmar, there starts to know the information technology more and fo...

Cultural landscapes often pose problems for planning and management because of insufficient information regarding visitor movements, interests and infrastructure burden. Traditionally visitor surveys have helped to fill this gap, albeit limited to their incomplete and occasional nature. This paper presents a methodology for using cellular antenna m...

Background Mobile phones are potential digital technologies for accessing family planning self-care interventions. However, their utilization could be possible if women of reproductive age have positive attitudes towards the use of this technology for healthcare purposes. This study aimed to examine the relationship between attitudes towards the us...

This paper aims to construct a system dynamic model elucidating the circular economy of rare earth elements (REE) in smartphones’ touch screens within the European waste supply chain of smartphones. Through extensive research and Monte Carlo simulations, we assess the economic benefits and environmental impacts of REE recycling over a ten-year peri...

This paper discusses a mobile phone tracking using the Sim Based application including SIM detection,anti-lost phone,anti-theft phone,alert, alarm,etc for thefted mobile phone. These features are quite different from the existing tracker applications which would be helpful in tracing the lost mobile without the help of any protecting agency. The ap...

In this paper, we introduce cooperative transmission for content distribution in wireless networks. The proposed scheme utilizes the link between User Equipments (UE) to upload data cooperatively and provides a new way of using mobile phones for high-reliability low-latency 4K live video streaming, which can be used in the TV broadcast business. Co...

Introduction: Mobile phones have become an essential part of everyone’s day-to-day life especially in children. Prolonged electronics screen use can cause digital eye strain. It can be difficulty to rectify due to increasing smartphone reliance potentially leading to serious public health problems. The Present Study Title: “A study to assess the kn...

Large language model (LLM)-based mobile agents are increasingly popular due to their capability to interact directly with mobile phone Graphic User Interfaces (GUIs) and their potential to autonomously manage daily tasks. Despite their promising prospects in both academic and industrial sectors, little research has focused on benchmarking the perfo...

Understanding human movement patterns is crucial for comprehending how a city functions. It is also important for city planners and policymakers to create more efficient plans and policies for urban areas. Traditionally, human movement patterns were analyzed using origin–destination surveys, travel diaries, and other methods. Now, these patterns ca...

Adolescence and emerging adulthood are developmental phases in which the exploration of one's own sexuality takes on a high priority, which can increase the risk of risky sexual behavior. Due to technological advances, (non-consensual) sexting has increased among young people and has become an integral part of their sexual socialization. Therefore,...

We presented a mobile phone scanning solution that offers a workflow for scanning not only small spaces, where drift can be neglected, but also larger spaces where it becomes a major accuracy issue. The LiDAR and image data is combined to build 3D representations of indoor spaces. The paper does focus on the drift compensation for larger scans on t...

Purpose This study examines the relevance of information and communication technologies in the effect of gender economic inclusion on environmental sustainability. Design/methodology/approach The focus is on a panel of 42 sub-Saharan African countries over the period 2005–2020. The empirical evidence is based on generalized method of moments. The...

Background Timely dispatch of appropriate emergency medical services (EMS) resources to the scene of medical incidents, and/or provision of treatment at the scene by bystanders and medical emergency lay callers (referred to as ‘callers’ in this review) can improve patient outcomes. Currently, in dispatch systems worldwide, prioritisation of dispatc...

We presented a mobile phone scanning solution that offers a workflow for scanning not only small spaces, where drift can be neglected, but also larger spaces where it becomes a major accuracy issue. The LiDAR and image data is combined to build 3D representations of indoor spaces. The paper does focus on the drift compensation for larger scans on t...

The traditional energy meter and manual billing system are considered complex and have many problems, including inaccuracy, ease of manipulation, and failure to pay bills on time, leading to financial losses and waste of energy and time. Additionally, it requires a large number of human operators. This paper proposes the design and implementation o...