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The proposed method came out to be very effective in noise cancellation of signal without requiring reference noise source.
In this paper we describe a novel method for selective bandpass cancellation of the quantization-noise that occurs in pulsed transmitter architectures, where the signal is partially or completely quantized.
In this paper, we demonstrate an active cancellation technique that can dramatically reduce the noise.
This noise cancellation technique is simple enough to implement in standard laboratory environments and can be used to improve signal-to-noise ratio for a variety of high precision experiments.
When combined with passive cancellation, applying the proposed technique provides enough self-interference suppression as to reach close (less than 2 dB) to the receiver noise floor.
The analysis and results on proposed technique for noise cancellation shows promising performance.
We demonstrate a crosstalk resistant adaptive noise cancellation method.
Our findings may find its potential applications in the quantum noise control.

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Why traffic density affect the surrounding housing price?
5 answers
Traffic density affects surrounding housing prices due to the negative impact of traffic nuisances on property values. Studies show that increased traffic intensity leads to a substantial decrease in housing prices, with a doubling of traffic density resulting in a 2% reduction in property values. Additionally, the presence of traffic noise, which tends to increase disproportionately to the noise produced, has a significant negative relationship with housing values, leading to an average devaluation of 1,900 ITL per percentage point of people disturbed by noise per square meter of surface area. Urban projects like highways can also influence housing prices, with areas closer to highways experiencing less growth in land and housing prices compared to areas further away from the project site.
What are the negative impact of Drones in terms of Noise Pollution for Emergency services?
4 answers
Unmanned aerial vehicles (UAVs) utilized in emergency services can have negative impacts in terms of noise pollution. Studies have shown that as UAVs operate at low altitudes, their noise impact on human health becomes more pronounced, especially with the development of advanced technologies. Noise measurements of different UAVs revealed that parameters for hexarotors were higher than quadrotors, with participants distinguishing between the noise of UAVs and having a more negative experience with hexarotors. Despite the noise perception, over 80% of respondents believed that the pros of UAV integration into everyday life outweigh the cons. Therefore, while UAVs offer significant benefits in emergency response, their noise pollution can pose challenges that need to be addressed for effective and sustainable deployment.
What are the negative impact of Supersonic Jets in terms of Training for Ground staff?
5 answers
Supersonic jets can have negative impacts on ground staff training due to the high noise levels they produce. The intense noise generated by supersonic jet engines, especially during take-off and landing, can lead to severe hearing damage for ground personnel. Additionally, the screech tones produced by these jets can reach sound pressure levels of up to 160 dB, causing immense noise pollution and potential structural fatigue. Therefore, training programs for ground staff working in close proximity to supersonic jets need to address the risks associated with exposure to high noise levels and implement measures to protect the hearing and overall well-being of the personnel.
What are the negative impact of Supersonic Jets in terms of Safety Concerns for Ground staff?
5 answers
Supersonic jets pose safety concerns for ground staff due to high noise levels and potential structural damage. The noise generated by supersonic jet operations can lead to severe hearing damage for personnel working near the aircraft. Additionally, the interaction between the jet exhaust shock structure and fluidic injection methods affects the total noise radiation, impacting the health and safety of ground staff. Furthermore, when supersonic jets interact with obstacles or the ground, the behavior of the jet can change significantly, influencing factors like flammability limits and cloud extent of substances released, which are crucial in safety assessments. These factors highlight the importance of considering the proximity of supersonic jets to the ground and implementing appropriate safety measures to protect ground staff from potential hazards.
What are the potential applications of Fabry-Perot interference in SiC nanosamples with Au coating?
4 answers
Fabry-Perot interference in SiC nanosamples with Au coating holds promise for various applications. The interference property controlled by the cavity length tuning in nanophotonic devices is widely utilized. Additionally, the scattering of visible and infrared photons from nanostructured materials, such as plasmonic Ag nanoparticles, can exhibit Fabry-Perot interference patterns, aiding in imaging and detection. Furthermore, the combination of Au:Cd nanoparticles with porous-Si for photodetectors showcases enhanced responsivity due to quantum confinement effects, emphasizing the importance of nanoparticle size and surface area. This demonstrates the versatility of Fabry-Perot interference in different materials and structures, offering opportunities for advanced optical devices and sensors.
What are the negative impact of Supersonic Jets in terms of Infrastructure for Cargo companies?
5 answers
Supersonic jets, due to their complex shock patterns and imperfect expansion, can lead to immense noise pollution and structural fatigue, impacting infrastructure for cargo companies. The shocks interacting with turbulent mixing layers can generate screech tones reaching sound pressure levels of up to 160 dB, causing significant noise issues. Additionally, sonic booms from supersonic transports can reach the ground after refraction, resulting in low-frequency "rumbles" that may affect infrastructure due to their attenuation and dispersion effects. These environmental impacts, combined with the emissions primarily in the stratosphere, can pose challenges for cargo companies operating in areas affected by supersonic aircraft operations.
What are the negative impact of Supersonic Jets in terms of for Suppliers of aircraft parts?
4 answers
Supersonic jets, due to their unique shock patterns and noise characteristics, pose challenges for suppliers of aircraft parts. The complex shock-cell structures in supersonic jets lead to the generation of broadband shock-associated noise (BBSAN) and screech tones, reaching sound pressure levels of up to 160 dB, causing immense noise pollution and structural fatigue. Additionally, supersonic impinging jets result in high-pressure and acoustic loads on nearby structures, leading to lift loss, ground erosion, and hot gas ingestion issues. These adverse effects necessitate specialized components to withstand the high unsteady loads and noise levels associated with supersonic aircraft, impacting suppliers in terms of design complexity, material requirements, and performance standards.
What are the negative impact of Supersonic Jets in terms of Increased Competition for Suppliers of aircraft parts?
4 answers
Supersonic jets, due to their unique characteristics, can pose challenges in terms of increased competition for suppliers of aircraft parts. The design and operation of supersonic aircraft involve addressing issues such as supersonic jet noise reduction, complex shock patterns leading to noise pollution and structural fatigue, and the presence of screech tones with sound pressure levels exceeding 160 dB. These factors necessitate specialized components and technologies, potentially creating a higher demand for specific parts and systems. The development and maintenance of supersonic jets may require suppliers to meet stringent requirements for noise reduction, shock pattern mitigation, and structural integrity, leading to a competitive environment among suppliers to provide these specialized components efficiently and effectively.
How to connect wind turbine to heater?
5 answers
To connect a wind turbine to a heater, various methods and technologies can be employed based on the specific requirements and conditions. One approach involves utilizing a cross-flow wind turbine to generate mechanical energy, which can then be converted into electrical energy for heating purposes. Additionally, direct heating of wind turbines can be achieved by using a voltage limiting unit interconnected with the wind turbine's DC link, which dissipates electrical energy into heat to warm the air inside the facility when the voltage exceeds a threshold level. Experimental studies have also explored the use of wind energy to supply heat, with mathematical models developed to determine the operational parameters of electric pulse heaters based on random wind speeds, showcasing the potential for utilizing wind power for heating applications.
What is inclinometer? What is used for and significance?
5 answers
An inclinometer is a precision instrument utilized for measuring angles of inclination or tilt in various applications. In geotechnical engineering, inclinometers are crucial for monitoring soil displacement by profiling land/soil movement along boreholes. Different inclinometer designs exist, such as those based on fiber Bragg grating sensors, MEMS sensors, or movable electrodes within capacitors, each offering unique advantages. Inclinometers play a vital role in real-time dynamic measurements for applications like unmanned surface vehicle navigation. They provide high sensitivity, stability, and accuracy, with resolutions ranging from 0.006° to 0.38°, depending on the design. The significance of inclinometers lies in their ability to offer precise measurements of tilt angles, aiding in tasks like monitoring slope stability, detecting displacement along sliding zones, and ensuring structural safety.
What is the effectiveness of noise mapping using ArcGIS in identifying areas with high levels of noise pollution?
5 answers
Noise mapping using ArcGIS has proven effective in identifying areas with high levels of noise pollution in urban settings. Studies conducted in cities like Gazipur, Antalya, Baghdad, and India have utilized ArcGIS for noise mapping, allowing for the measurement, classification, and visualization of noise levels across different zones. The use of interpolation techniques like IDW in ArcGIS aids in creating detailed noise maps that highlight noise hotspots and areas exceeding standard noise levels. By integrating spatial data with noise measurements, ArcGIS facilitates the identification of sources contributing to noise pollution, enabling the development of targeted solutions and policies for noise control in urban environments. Overall, ArcGIS-based noise mapping emerges as a valuable tool for understanding, managing, and mitigating noise pollution in various cities.