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From this analysis, a compact EBG structure is proposed to mitigate wideband simultaneous switching noise (SSN) in mobile phones.
Consequently, this mobile application is a significant decision-making tool to plan interventions for noise pollution reduction.
Extensive simulations and outdoor experiments demonstrate that Ear-Phone is a feasible platform to assess noise pollution, incurring reasonable system resource consumption at mobile devices and providing high reconstruction accuracy of the noise map.
The proposed noise suppression method in mobile telephone systems demonstrates much better subjective and objective test results than the existing methods.
When considering individual listening habits on mobile phones, further study to predict total accumulated environmental noise is still needed.
This ideal noise shaping demonstrated that the MOBILE can work as an ideal quantiser.
Open accessProceedings ArticleDOI
29 Nov 2010
74 Citations
Such an approach is uniquely characterized by the high accuracy inherent to sound trilateration, with little computational burden on the mobile device, and no specialized hardware or audible noise.
The experiment result showed that it's effective to detect the buds with the strategy of this paper.

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How does the use of calculators in the classroom affect students' mathematical performance?
4 answers
The use of calculators in the classroom has shown positive effects on students' mathematical performance. Studies from South Africa, Ghana, Indonesia, and Malaysia have highlighted various benefits. In South Africa, the prevalence of calculators in classrooms was found to be high, with recommendations for a standardized model and teacher training. In Ghana, handheld calculators significantly improved students' algebraic performance. In Indonesia, calculator-enhanced lessons improved students' attitudes towards mathematics and calculator use. Additionally, a study in Malaysia reported that using scientific calculators enhanced mathematics achievement, particularly in problem-solving instructions. Overall, the evidence suggests that integrating calculators into mathematics education can enhance students' understanding, computational skills, and attitudes towards the subject.
What factors contribute to the variation in product quality among 17 and 18 year old students?
4 answers
Variation in product quality among 17 and 18-year-old students can be influenced by multiple factors. Factors such as noise factors, raw materials, manager involvement, project quality, validation quality, adequacy of training, employee awareness, work instructions, commitment to product quality, working with the right devices, proper tools, and material handling can all impact product quality. Additionally, the dimensional inaccuracy of manufactured parts can be affected by process-related errors, machine-related errors, fixturing-related errors, material property variation, and dimensional variation of incoming parts or raw materials, highlighting the complexity of maintaining product quality. Understanding these variables is crucial in addressing the challenges related to product quality variation among young students, especially in the context of food choices and mental health concerns.
Is 20 too low for Typing Performance metric WPM?
5 answers
A typing performance metric of 20 words per minute (WPM) can be considered low based on various studies. Research has shown that novices using gaze typing achieved speeds ranging from 6.9 to nearly 20 WPM after training sessions with adjustable dwell times. Additionally, studies on text entry with touch screens highlighted significant improvements in typing performance when tactile feedback was incorporated, with participants preferring tactile or aural feedback over visual feedback alone. Furthermore, an experimental study on text input devices emphasized the caution needed when interpreting productivity metrics based on extrapolated data, as they can lead to underestimations of entry speed and overestimations of error rates. Therefore, a WPM of 20 may be considered low compared to the potential speeds achievable with training and optimal feedback mechanisms.
What are the Definition of terms in Mobile Document Scanner App?
4 answers
A mobile document scanner app typically refers to an application designed for capturing images of documents using a mobile device's camera and converting them into digital format for storage or sharing purposes. Such apps often incorporate features like image capture, object sensing, image processing, and workflow customization. Additionally, some advanced mobile scanner apps may include functionalities for scanning hidden embedding data in 3D printed objects, facilitating database management, and enabling efficient scanning through barcode, QR, and optical character recognition (OCR) technologies. Furthermore, these apps can allow users to set up scan workflows in advance, automate document sharing, segmentation, and cropping, enhancing the overall scanning experience and productivity.
What is the role of color psychology in residential interiors?
4 answers
Color psychology plays a crucial role in residential interiors by influencing mood, well-being, and functionality. Colors have a significant impact on human emotions and behaviors, with specific hues evoking different responses. For instance, blue interiors are preferred for their calming effect, facilitating studying activities. Different colors can affect room lightness and mood, with blue being associated with a calm atmosphere. Additionally, colors are used to create specific atmospheres within homes, capable of soothing, cheering, or even repelling individuals based on their emotional responses. Understanding color psychology allows designers to create spaces that promote comfort, productivity, and overall well-being in residential settings.
What is current problem with Malaysian road?
5 answers
The current problems with Malaysian roads include issues related to road traffic noise, run-off-road accidents, road safety funding mechanisms, roadside hazards, and pavement maintenance strategies. The rapid increase in registered vehicles has led to a significant rise in road traffic noise, impacting public health. Run-off-road accidents due to unfriendly roadside designs and hazards like trees and signboard poles have resulted in fatalities and severe injuries, highlighting the need for safety recovery zones. Road safety funding mechanisms in Malaysia are under scrutiny for sustainability and effectiveness. Existing roadside hazards, such as oversized trees and improper safety barriers, pose risks to motorists, necessitating improvements in design guidelines. Additionally, pavement damages due to overloading vehicles require proper maintenance strategies to ensure road safety and economic growth.
How does road network influence traffic?
5 answers
Road networks play a crucial role in shaping traffic dynamics and congestion levels in urban areas. The structure and characteristics of road networks impact traffic flow, noise levels, and accident rates. Studies have shown that factors such as lane number, road segment length, and road junctions influence traffic noise intensity and amplitude. Additionally, the connectivity, centrality, and clustering measures of road networks affect transportation performance, with well-connected networks distributing traffic more evenly and reducing congestion. Furthermore, individual road segments can have a significant influence on traffic patterns, with certain segments being identified as highly influential in causing congestion in urban road networks. Understanding these influences is essential for urban planners and policymakers to improve traffic efficiency and safety in urban areas.
Why are students dependent on a calculator?
5 answers
Students are dependent on calculators due to various factors identified in the research papers. The studies show that students tend to rely on calculators for basic mathematical computations, leading to a decreased ability to judge the correctness of answers and a reliance on fast and direct solutions. Additionally, the use of calculators in enrichment learning activities has been found to enhance students' motivation and introduce them to advanced calculator functions beyond simple calculations. However, research also indicates that despite the use of calculators, there are still mathematical deficiencies among students, highlighting the need for integrated strategies to improve mathematical skills and ensure patient safety in professions like nursing. Overall, the convenience, technological appeal, and perceived efficiency of calculators contribute to students' dependency on them for mathematical tasks.
What is the importance of noise mapping in a city using GIS-based method?
5 answers
Noise mapping in a city using GIS-based methods is crucial for urban planning, environmental policy-making, and public health protection. By integrating field measurements and numerical modeling, noise maps can identify areas with different noise levels, assess compliance with noise regulations, and guide decision-making for noise control measures. Open-source GIS tools facilitate the creation of noise maps, aiding in data input, visualization, and linking noise exposure with population data. Additionally, developing dynamic noise maps that consider temporal variations in noise levels enhances the evaluation of noise annoyance at different times. Overall, GIS-based noise mapping provides valuable insights for understanding noise pollution patterns, supporting effective urban development, and improving the quality of life for city residents.
What are the effects of using brain-sensor headphones on cognitive performance in students during noise reduction?
4 answers
The effects of using brain-sensor headphones on cognitive performance in students during noise reduction have been studied extensively. Research indicates that noise-canceling technologies, such as active noise-canceling headphones, can reduce external distractions and free up mental resources. Additionally, wearing noise-reducing headphones has shown a positive relationship with improved reading comprehension assessments for students with learning disabilities. Furthermore, in the presence of simulated aircraft noise, noise-canceling headphones have been found to improve cognitive performance, especially for nonnative English speakers, by enhancing the signal-to-noise ratio. These findings suggest that brain-sensor headphones can play a significant role in enhancing cognitive performance by mitigating the negative impact of noise on attention and mental workload.
Do introverts dislike attending concerts?
5 answers
Introverts may not necessarily dislike attending concerts, as preferences and reactions can vary. Research has shown that introverts tend to focus more on themselves and may not enjoy socializing in large groups like at concerts. Additionally, studies have found that introverts may perform worse on cognitive tasks in the presence of noise or music compared to extraverts, particularly in Western samples. However, these findings were not consistent across different cultural backgrounds, as introverts in an Asian sample did not show the same performance decline in noisy environments. Therefore, while some introverts may not prefer the social aspects of concerts, individual preferences and reactions can differ based on various factors such as cultural influences and personal traits.