Q Learning Behavior on Autonomous Navigation of Physical Robot

Behavior based architecture gives robot fast and reliable action. If there are many behaviors in robot, behavior coordination is needed. Subsumption architecture is behavior coordination method that give quick and robust response. Learning mechanism improve robot’s performance in handling uncertainty. Q learning is popular reinforcement learning method that has been used in robot learning because it is simple, convergent and off policy. In this paper, Q learning will be used as learning mechanism for obstacle avoidance behavior in autonomous robot navigation. Learning rate of Q learning affect robot’s performance in learning phase. As the result, Q learning algorithm is successfully implemented in a physical robot with its imperfect environment

Reducing Car Dependence Has Economic, Environmental, and Social Benefits

Californians live in a car-dominant society. Decades of transportation and land use planning practices have created communities in which driving is a virtual necessity to access most destinations. Personal vehicles provide mobility benefits, but they also have many negative financial, public health, environmental, and social impacts. Technological innovations such as vehicle electrification can lessen some, but not all, of these impacts. A more comprehensive approach is to shape communities in a manner that gives people viable options other than a personal vehicle—such as walking, bicycling, or transit—to get where they need to go.Researchers at UC Davis reviewed published studies to summarize the range of household- and community-level benefits that can be realized by reducing car dependence in California. This policy brief summarizes the findings of that work.View the NCST Project Webpag

Behavior Coordination Methods on Autonomous Navigation of Physical Robot

Behavior based architecture gives robot fast and reliable action. If there are many behaviors in robot, behavior coordination is needed. Subsumption architecture and motor schema is example of behavior coordination methods. In order to study those methods characteristics, computer simulation is not enough, experiments in physical robot are needed to be done. It can be concluded from experiment result that the first method gives quick, robust but non smooth response. Meanwhile the latter gives smooth but slower response, and it is tend to reach target faster than the first one. Some limitation of physical robot experiment also presented here

What California Gains from Reducing Car Dependence

Cars provide an unparalleled level of mobility but have negative financial, public health, environmental, and social impacts. Reducing the need for driving in California would produce a range of household- and community-level benefits. Driving is associated with adverse health effects (e.g., obesity, high blood pressure, depression, injuries, fatalities), while commuting by walking or biking provides numerous physical and mental health benefits. A reduction in driving would also improve public health by decreasing air pollution and greenhouse gas emissions. It would save substantial sums of money:  households spend about $9,000/year or 16$500 million per year on highway maintenance. A less car-dependent society would also be more equitable for those with limited income or limited physical abilities who cannot drive, to the benefit not just of those individuals but the community as a whole. While it is not realistic in the foreseeable future for most Californians to live without their cars, it is possible to decrease car dependence. Doing so requires a shift away from a century-old prioritization of the goal of reducing vehicle delays over other important goals. Creating a less car-dependent world is not necessarily more costly to the public and can be achieved over time through changes in land use and transportation planning practices. Answers to many of the frequently asked questions about such efforts are provided.View the NCST Project Webpag

The Dialectics of Change: The New York City Health and Hospitals Corporation at a Crossroad

New York City Mayors have long struggled with what to do with the New York City Health and Hospital Corporation ( HHC ). HHC is neither a city agency nor a department; nor is it a true public benefit corporation or authority. Given recent problems faced by HHC, like the AIDS crisis, evaporating public funding, a shrinking pool from which to hire employees, the movement to make HHC more accountable and connected with city government has grown. This article argues that to fully take advantage of the potential that HHC has, the opposite should be done: HHC should be allowed to vest complete control in its Board of Directors and Executive Officers, making them fully accountable.

Correlating the Nevius Method with Church Planting Movements: Early Korean Revivals as a Case Study

John Nevius served as a missionary to China in the late nineteenth-century. From his field experience, Nevius argued for radical changes in missionary methodology. His greatest influence may have been on the mission to Korea beginning in the 1890s. David Garrison, currently serving in South Asia, served for several years in influential administrative roles within the International (formerly Foreign) Mission Board of the Southern Baptist Convention. He studied and advocated Church Planting Movements [CPM], necessitating a change in contemporary missionary methodology. Both men have made major contributions to the practice of missions. This article endeavors to show the similarities between their methods, viz., the Nevius Method and CPMs, through the historical lens of the introduction of Protestant Christianity to Korea. The impetus behind this analysis is the role and value of missions history in developing missionary strategy. Both the Nevius Method and Church Planting Movements implement certain similar strategies that have proved effective and are worthy of consideration

Where do I belong? Volunteer attachment in a complex organization

To understand volunteer retention and recruitment in complex organizations, this paper focuses on volunteers' attachment to a multipurpose and multi-branch organization. Using the Red Cross in Flanders (Belgium), a service organization with multiple locations offering a variety of programs, we investigate whether volunteers' attachment is primarily directed toward the organization as a whole, or whether volunteers are more prone to develop localized attachment to the program or branch in which they participate. Our findings suggest that managers recruiting volunteers to large complex organizations should be cautious in using the overarching organizational mission to attract volunteers. Rather, attention should be put on specific programs and activities using volunteers. It is only through longer-term service that volunteers appreciate the organization's mission and principles and find their allegiance to the organization as a whole