448 research outputs found

    Temperature Control using PLC and LabVIEW Integration

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    Remotely controlled applications over a wide area have been commonly used in the industries today. In most of the industries direct temperature measurement is not possible. Most of the processes for various applications require control action by using Programmable Logic Controller (PLC) or LabVIEW. In this paper we are monitoring and controlling the process by establishing communication between PLC and LabVIEW. This can be done by Ethernet module of PLC and used for remote control of process. Nowadays PLC can not only control by its original software but also by third party software such as LabVIEW. The model developed and mentioned in this paper uses LabVIEW software which provides programming, monitoring, logging and human machine interface for the temperature control of process. It is easy to integrate different hardware simultaneously which exploits the multitasking and multiprocessing environment of LabVIEW in order to achieve the control objective

    Private Equity: Antecedents, Outcomes, Mediators, and Moderators

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    As private equity’s financial heft and influence on the business landscape has intensified, so too has scholarly interest in the phenomenon. We review recent progress in private equity research, with a focus on the private equity industry’s later-stage buyout segment. To synthesize and integrate current findings, we construct a framework that encompasses not only antecedents and outcomes of private equity’s activities, but also mediators and moderators of the relationships that drive these outcomes. Based upon the gaps and learning opportunities that are surfaced by this framework, we develop recommendations for future private equity research. The proposed research agenda is particularly germane to management scholars, whose theories and perspectives have thus far been productively, yet relatively sparingly, applied in private equity research

    Internet of Things Based Women Tracking and Security with Auto-Defender System

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    In worldwide situation, the prime inquiry in each woman mind is about her safety and the badgering issues. Women everywhere throughout the world are confronting much deceptive physical provocation. The main idea frequenting each woman is the point at which they will have the capability to move frankly in the city even in odd hours without stressing over their security. Our task is a dare to determine this issue. This paper describes about a smart intelligent security system for women. This venture concentrates on a security for women so they will never feel vulnerable. The system comprises of different modules such as GPS receiver, shock circuit, buzzer, spray mechanism, Webcam, pulse rate sensor, Raspberry pi-3 module. Today there are many cases which are going on about women all over in the world. It was high time where women required a change. This task depends on women security where women feel ensured. This venture portrays about safety electronic system for women, worked out in the open transport vehicles such as, car, buses and auto-rickshaws as these days women are being at molested, kidnapped and badgering by the drivers. In each field there is an uncommon effect of women like games, dance, training, business, in legislative issues moreover. Women are driving in each field. The question arises that, Are the women in India are extremely secured? Always get the solution No. Henceforth executed Internet of Things based women tracking and security with auto-defender system which is interfaced with Raspberry pi 3 board that will track the location of the women also will auto defend in bad situation

    Optimal Design of Brushless Doubly Fed Reluctance Machine

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    Optimization techniques are widely used in the design of electrical machines to obtain maximum performance at minimal capital cost. After a brief overview of some of the optimization techniques employed in electrical machine design, this chapter highlights the features of brushless doubly fed reluctance machine (BDFRM) and its optimal design. The simple and robust construction, variable speed operation, better performance compared to traditional counterpart, and requirement of partially rated converter for speed control have made BDFRM an attractive alternative for variable speed applications such as pumps, blower, and wind generators. Due to unusual construction of BDFRM, conventional design procedures cannot be applied. A few critical issues in the design of BDFRM that greatly affect its performance are discussed. Design optimization is performed using nonlinear programming technique for 6-4-2 pole reluctance rotor and 8-6-4 pole ducted rotor configurations of BDFRM. 2 kW prototypes are then constructed for laboratory use. The performance of the prototypes is examined through finite element analysis (FEA) employing Maxwell 16 software. The test results are also presented

    Synthesis and Reactions of Alkyl- and Aryl-Substituted N-Heterocyclic Carbene Boranes

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    Synthesis and applications of alkyl- and aryl-substituted NHC-boranes has been demonstrated. Chapter 1 shows the synthesis of methyl- and phenyl-substituted NHC-boranes by using organolithium reagents. Other alkyl- and aryl-substituted NHC-boranes have been prepared by hydroboration of alkenes and arynes respectively. The prepared substituted NHC-boranes were converted to Suzuki coupling precursors such as boronic acids, trifluoroborate salts, pinacol boronate esters and MIDA boronates. Fluorinated NHC-boranes were made by electrophilic fluorination of NHC-boranes with Selectfluor. The diMe-Imd-BF2H has been synthesized via the use of a nucleophilic fluorination source (TBAF). The corresponding boryl radical has been generated and its properties have been compared to the boryl radical of the parent diMe-Imd-BH3. Chapter 2 describes the use of B-halo substituted NHC-boranes in the Suzuki coupling reactions. The NHC-(dibromo)arylboranes are converted to the boronic acids in-situ while the NHC-(difluoro)arylboranes are analogous to potassium trifluoroborate salts and used directly in the Suzuki coupling reaction. The potential for the use of NHC-(difluoro)arylboranes as a boron masking partner has been demonstrated. NHC-(difluoro)pinylborane has been used in the Minisci reaction showcasing the utility of NHC-boranes as a new boron partner in the C-C bond formation reactions

    Atomic Clock and Atomic Magnetometer

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    Todaythe Battery-operated clocks (quartz clock) with frequency instabilities of 10-11 can be used for time interval up to a day, and the package is not larger than 1 cm3, it could be widely used in portable electronic devices. In certain military and civilian applications, such as global positioning systems (GPS) and synchronization of mobile communication and navigation networks which demands timing precision and stability, that cannot be achieved with low-power quartz crystal technology which takes time intervals of more than a few minutes. Atomic clocks can provide these stabilities. Atomic magnetometer has extremely high sensitivity so along with atomic clock atomic magnetometer can also sense extremely low magnetic field so this device can also use in biomedical as well as defense field

    iWHAM- Integrated water, health and agriculture management : public health implications of integrated watershed management in a tribal area

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    Background: Water scarcity remains a major hurdle in the overall development of tribal people living on hilly terrain, and it is one of the major reasons for their various health problems. Integrated watershed management (IWM) aims to increase water availability and to enhance socio-economic development in such areas. There is a lack of information on the implications of IWM on various aspects of public health, especially in hilly tribal areas. Aim: The overall aim of this thesis was to explore the public health implications of integrated watershed management in a hilly tribal area in India. Methods: This study was conducted in six tribal villages of Maharashtra, India. In Paper I, six focus group discussions (FGDs) were conducted with men and women from tribal community, who lived in three different villages with different levels of implementation of the integrated watershed management programme (IWMP). Paper II was a cross-sectional survey involving face-to-face interviews with heads of households in the six study villages. There were 142 households from three integrated watershed management villages (IWMV) and 144 households from three non-watershed management villages (NWMV) participated in study. Paper III was a one year prospective study that investigated physico-chemical and faecal coliform contamination of seven water sources (wells) from six villages. Antibiotic resistance of Escherichia coli isolated from the water sources was investigated. The incidence of diarrhoea was recorded at regular intervals. For Paper IV, 17 individual interviews and four FGDs were conducted with professional stakeholders involved in rural healthcare and development administration in the same tribal area. Findings: Tribal people living in hilly terrain perceived that water scarcity was the main reason for their health problems, and that implementation of IWMP was helpful in improving their health and also empowering their families by improving their socio-economic status through development of agriculture (Paper I). The questionnaire-based cross sectional study revealed positive influence of IWM on many aspects of public health including shorter periods of water scarcity (OR=0.02, 95% Confidence Interval (CI) 0.01-0.04), increased use of toilets (OR=6.95, 95% CI 4.07-11.85), increased cultivation of fruit and vegetables (OR=2.61, 95% CI 1.60-4.27), reduction in migration (OR=0.59, 95% CI 0.36-0.97), increased utilization of healthcare facilities and reduced faecal coliform contamination of household drinking water (42% vs 88%) (Paper II). The odds of coliform contamination in water at community sources was 2.3 times lower in IWMV (95% CI 0.81-6.45, p=0.08). The number of severe diarrhoeal cases (18/663 vs. 42/639, p=0.001) was lower in IWMV compared to NWMV. E. coli isolates from water sources in NWMV were resistant to a wider range of antibiotics (Paper III). The professional stakeholders in rural healthcare and development administration perceived that integrated watershed management positively influences complex interlinked factors related to the health of tribal people (Paper IV). Conclusions: This study suggests that in a hilly tribal setting, implementation of IWMP helps in efficient use and management of water for households, as well as for agriculture purposes, and contributes to enhance socio-economic development and public health. IWM appeared to influence public health through positive modification of complex interlinked factors that include hygiene, sanitation, and healthcare practices, agriculture, migration, education etc. Thus, it appears that an integrated water, health and agriculture management (iWHAM) approach will be useful in improving public health in hilly tribal areas with water scarcity
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