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Graphical Estimation of the Parameters of the Stable Laws
Paulson, Albert S.,Won, Hyung-Gyoo 한국경영과학회 1996 Management Science and Financial Engineering Vol.2 No.1
This paper presents and easily used graphical procedure for simultaneous estimation of the index, skewness, scale, and location parameters of the stable laws. First, the index α and skewness β are estimated through the joint use of a tail length statistic K~_t and a skewness statistic K~_s, both of which are functions of order statistics. Next, the function of order statistics needed for estimation of scale σ and location μare determined from a nomo-gram indexed on the estimates of α and β.Some applications and examples are provided.
Demon Possession and Psychopathology
Paulson Pulikottil 한세대학교 영산신학연구소 2017 영산신학저널 Vol.0 No.41
This paper is an inquiry into demon-possession, exorcism and psychopathology. In the history of the belief in demon possession and the practice of exorcism, belief in demons, evil and good spirits, possession, etc have always been part of human belief systems. Many church fathers testify that exorcism was practised in the various periods of Church History. The Catholic Church and the various Orthodox traditions advocate exorcism. However, it is the rationalism and the emergence of the scientific view of the world that questioned the belief in the demonic. However, the 20th and 21st century has seen a resurgence of these beliefs and practices particularly among Christians. Since exorcism played an important role in the ministry of Jesus and his disciples, it should have an integral part in the ministry of the Christian Church as well. The paper presents some tentative guidelines as to how the reality that there are two distinct conditions must be incorporated into the pastoral ministry and the missional approach of the contemporary church. Discernment and diagnosis is important in cross-cultural mission situations.
Wind Energy Interface to Grid with Load Compensation by Diode Clamped Multilevel Inverters
Paulson Samuel,M. Kishore Naik,Rajesh Gupta,Dinesh Chandra 전력전자학회 2014 JOURNAL OF POWER ELECTRONICS Vol.14 No.2
Fluctuating wind conditions necessitate the use of a variable speed wind turbine (VSWT) with a AC/DC/AC converter scheme in order to harvest the maximum power from the wind and to decouple the synchronous generator voltage and frequency from the grid voltage and frequency. In this paper, a combination of a three phase diode bridge rectifier (DBR) and a modified topology of the diode clamped multilevel inverter (DCMLI) has been considered as an AC/DC/AC converter. A control strategy has been proposed for the DCMLI to achieve the objective of grid interface of a wind power system together with local load compensation. A novel fixed frequency current control method is proposed for the DCMLI based on the level shifted multi carrier PWM for achieving the required control objectives with equal and uniform switching frequency operation for better control and thermal management with the modified DCMLI. The condition of the controller gain is derived to ensure the operation of the DCMLI at the fixed frequency of the carrier. The converter current injected into the distribution grid is controlled in accordance with the wind power availability. In addition, load compensation is performed as an added facility in order to free the source currents being fed from the grid of harmonic distortion, unbalance and a low power factor even though the load may be unbalanced, non-linear and of a poor power factor. The results are validated using PSCAD/EMTDC simulation studies.
Signal Modeling and Processing of IR-UWB Radar-based System for Vital Signal Monitoring
Paulson Eberechukwu Numan,Sunwoo Kim 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
In this paper, an IR-UWB radar based system for monitoring vital signs is proposed. Specifically, addressing the issue of harmonics between respiration and heart signals from the spectrum of recorded waveforms, using an IR-UWB. A filter to cancel out breathing harmonics is also implemented to improve heart rate detection. Numerical simulations have been performed to demonstrate that an IR-UWB radar can meet the requirements of typical applications such as non-invasive heart and respiration rate monitoring, while resolving issues associated with detected signals.
Wind Energy Interface to Grid with Load Compensation by Diode Clamped Multilevel Inverters
Samuel, Paulson,Naik, M. Kishore,Gupta, Rajesh,Chandra, Dinesh The Korean Institute of Power Electronics 2014 JOURNAL OF POWER ELECTRONICS Vol.14 No.2
Fluctuating wind conditions necessitate the use of a variable speed wind turbine (VSWT) with a AC/DC/AC converter scheme in order to harvest the maximum power from the wind and to decouple the synchronous generator voltage and frequency from the grid voltage and frequency. In this paper, a combination of a three phase diode bridge rectifier (DBR) and a modified topology of the diode clamped multilevel inverter (DCMLI) has been considered as an AC/DC/AC converter. A control strategy has been proposed for the DCMLI to achieve the objective of grid interface of a wind power system together with local load compensation. A novel fixed frequency current control method is proposed for the DCMLI based on the level shifted multi carrier PWM for achieving the required control objectives with equal and uniform switching frequency operation for better control and thermal management with the modified DCMLI. The condition of the controller gain is derived to ensure the operation of the DCMLI at the fixed frequency of the carrier. The converter current injected into the distribution grid is controlled in accordance with the wind power availability. In addition, load compensation is performed as an added facility in order to free the source currents being fed from the grid of harmonic distortion, unbalance and a low power factor even though the load may be unbalanced, non-linear and of a poor power factor. The results are validated using PSCAD/EMTDC simulation studies.
Biological assessment of streams and rivers in U.S. - design, methods, and analysis
Rashleigh, Brenda,Paulson, Steve,Flotemersch, Joe,Pelletier, Peg The Ecological Society of Korea 2013 Journal of Ecology and Environment Vol.36 No.1
Bioassessment is the use of biosurvey data, most commonly for benthic macroinvertebrates and fish, to obtain information about the health of waters in a region. In rivers, bioassessment results are used to evaluate biological condition and trends, to establish relationships between stressors and impairments, and to guide and evaluate management actions.