Publications by authors named "Siddharth Swaminathan"

3 Publications

  • Page 1 of 1

Capacitive Based Micromachined Resonators for Low Level Mass Detection.

Micromachines (Basel) 2020 Dec 25;12(1). Epub 2020 Dec 25.

Department of Electrical and Computer Engineering, University of Windsor, Windsor, ON N9B 3P4, Canada.

Advancements in microfabrication technologies and novel materials have led to new innovations in miniaturized gas sensors that can identify miniscule changes in a complex environment. Micromachined resonators with the capability to offer high sensitivity and selectivity in array integration make mass loading a potential mechanism for electronic nose applications. This paper investigates the mass sensing characteristics of progressive capacitive based micromachined resonators as potential candidates for volatile organic compound detection where also there is a need for miniaturized array configuration. In this paper, a detailed investigative review of the major three geometric designs of capacitive based micromachined resonators, namely, the microcantilever, the microbridge and the clamped membrane sensors is performed. Although many reviews are present in literature regarding mass sensors, however there is a gap in the literature regarding the common capacitive based micromachined mass sensors. This research gives a review on the foundation for capacitive based micromachined mass sensors while highlighting the potential capabilities of each geometric design to be developed further. Moreover, this paper also introduces the advancements based on the geometric designs of the capacitive based micromachined mass sensors. An in-depth analysis is done for each geometric design, to identify the critical design parameters, which affect the sensors' performances. Furthermore, the theoretically achievable mass sensitivity for each capacitive based micromachined mass sensor is modeled and analyzed using finite element analysis with mass variation in the picogram range. Finally, a critical analysis is done on the sensor sensitivities and further discussed in detail wherein each design is compared to each other and its current advances. Additionally, an insight to the advantages and disadvantages associated with each simulated geometry and its different advances are given. The results of the investigative review and analysis indicate that the sensitivities of the capacitive based micromachined sensors are dependent not only on the material composition of the devices but also on the varying degrees of clamping between the sensor geometries. In essence, the paper provides future research the groundwork to choose proper candidate geometry for a capacitive based micromachined mass sensor, with its several advantages over other mass sensors, based on the needed application.
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December 2020

Does Citizenship Abate Class? Evidence and Reflections from a South Indian City.

Econ Polit Wkly 2017 Aug;52(32):47-57

Brown University.

Drawing on data from a large household survey in Bangalore, this paper explores the quality of urban citizenship. Addressing theories that have tied the depth of democracy to the quality and effectiveness of citizenship, we develop an index of citizenship and then explore the extent to which citizenship determines the quality of services and infrastructure that households enjoy. Our findings show that citizenship and access to services in Bangalore are highly differentiated, that much of what drives these differences has to do with class, but we also find clear evidence that the urban poor are somewhat better in terms of the services they receive than they would be without citizenship. Citizenship, in other words, abates the effects of class.
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August 2017

Towards comprehensive malaria planning: the effect of government capacity, health policy, and land use variables on malaria incidence in India.

Soc Sci Med 2012 Oct 20;75(7):1213-21. Epub 2012 Jun 20.

Harvard Law School, Cambridge, MA 02138, United States.

We present what we believe is the first empirical research that accounts for subnational government capacity in estimating malaria incidence. After controlling for relevant extrinsic factors, we find evidence of a negative effect of state government capacity on reported malaria cases in Indian states over the period 1993-2002. Government capacity is more successful in predicting malaria incidence than potentially more direct indicators such as state public health expenditures and economic development levels. We find that high government capacity can moderate the deleterious health effects of malaria in rice producing regions. Our research also suggests that government capacity may have exacerbated the effectiveness of the World Bank Malaria Control Project in India over the period studied. We conclude by proposing the integration of government capacity measures into existing planning efforts, including vulnerability mapping tools and disease surveillance efforts.
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October 2012