Dualband Microstrip Elliptic Patch 1x4 MIMO Antenna Design for 5G System Device

This paper presents a dual-band antenna for the 5G system communication device. The MIMO antenna can potentially boost the capacity and transmission rates to a new level in a communication system. The MIMO 1x4 elliptic circular patch is designed at 24 GHz and 27.8 GHz. From the simulated S11 results, a single patch antenna provides -16.364 dB at 24 GHz and -35.44 dB at 27.86 GHz. While for the MIMO 1x4 patch, the simulated S11 of -15.563 dB and -21.889 dB are achieved at both 24 GHz and 27.8 GHz, respectively. It has a gain value of 9.04 dBi at the 24 GHz and a gain value of 6.56 dBi at the 27.8 GHz. These gains are higher than the gain obtained with a single element.

Cross-System Communication in Early Childhood Settings in the United States: An Exploratory Study Using the National Survey of Children’s Health

Communication between a child’s health care provider, child care and other community providers (cross-system communication) may facilitate access and referral to early intervention (EI). This study examined (a) factors associated with cross-system communication and (b) whether cross-system communication was associated with receiving EI among U.S. toddlers ages 1 to 2 years. This study used data from the National Survey of Children’s Health 2016 and included 1,184 children of ages 1 to 2 years, whose parents indicated a need for cross-system communication. Dependent variable was having an EI plan. Primary independent variable was cross-system communication. Children who had cross-system communication had almost three times (2.9) higher odds of receiving EI services as compared to those who did not have cross-system communication (odds ratio [OR] = 2.9, 95% confidence interval [CI] = 1.2, 6.9, p = .014). This study found that cross-system communication was associated with receiving EI services for U.S. children of ages 1 to 2 years.

Air quality sensors in public transport stops and cross-system communication

The purpose of this article is to present a state of art implementation of air quality sensors in public transport stops. Effects on health due to different types of pollutants are summarized as well. Functional scope of the solutions, via warning messages displayed for passengers waiting at these stops, including a cross system communication between traffic management and public transport systems, are also focused. Analysis of existing sensor types from multiple view point including functions, types of measured pollutants, price ranges and comparisons are outlined.

Effects of COVID-19 on Sense of Smell: Human Factors/Ergonomics Considerations

Objective We review the effects of COVID-19 on the human sense of smell (olfaction) and discuss implications for human-system interactions. We emphasize how critical smell is and how the widespread loss of smell due to COVID-19 will impact human-system interaction. Background COVID-19 reduces the sense of smell in people who contract the disease. Thus far, olfaction has received relatively little attention from human factors/ergonomics professionals. While smell is not a primary means of human-system communication, humans rely on smell in many important ways related to both quality of life and safety. Method We briefly review and synthesize the rapidly expanding literature through September 2020 on the topic of smell loss caused by COVID-19. We interpret findings in terms of their relevance to human factors/ergonomics researchers and practitioners. Results Since March 2020 dozens of articles have been published that report smell loss in COVID-19 patients. The prevalence and duration of COVID-19-related smell loss is still under investigation, but the available data suggest that it may leave many people with long-term deficits and distortions in sense of smell. Conclusion We suggest that the human factors/ergonomics community could become more aware of the importance of the sense of smell and focus on accommodating the increasing number of people with reduced olfactory performance. Application We present examples of how olfaction can augment human-system communication and how human factors/ergonomics professionals might accommodate people with olfactory dysfunction. While seemingly at odds, both of these goals can be achieved.