Vector measures applied to optimal control for a class of evolution equations on Banach spaces

Nasiruddin Ahmed 대한수학회 2020 대한수학회논문집 Vol.35 No.4

In this paper we consider a class of nonlinear evolution equations on infinite dimensional Banach spaces driven by vector measures. We prove existence and uniqueness of solutions and continuous dependence of solutions on the control measures. Using these results we prove existence of optimal controls for Bolza problems. Based on this result we present necessary conditions of optimality.

A NOTE ON RADON-NIKODYM THEOREM FOR OPERATOR VALUED MEASURES AND ITS APPLICATIONS

Ahmed, Nasiruddin Korean Mathematical Society 2013 대한수학회논문집 Vol.28 No.2

In this note we present sufficient conditions for the existence of Radon-Nikodym derivatives (RND) of operator valued measures with respect to scalar measures. The RND is characterized by the Bochner integral in the strong operator topology of a strongly measurable operator valued function with respect to a nonnegative finite measure. Using this result we also obtain a characterization of compact sets in the space of operator valued measures. An extension of this result is also given using the theory of Pettis integral. These results have interesting applications in the study of evolution equations on Banach spaces driven by operator valued measures as structural controls.

A Novel Technique for Transmission Loss Allocation in Restructured Power System

Naimul Hasan,Ibraheem Nasiruddin,Yudhishthir Pandey 대한전기학회 2019 Journal of Electrical Engineering & Technology Vol.14 No.4

Transmission loss allocation in a restructured power system is vital in today’s electricity market around the world. The problem of transmission loss allocation among the various participants is getting more attention with the increase of the competition level in electricity markets. In this paper, a novel routing algorithm with minimum transmission loss is proposed for judicious allocation of transmission losses over a network. Proposed routing algorithm computes the power fl ow path through transmission line from the individual generator to load utilizing the shortest path with minimum loss criterion. The load demand is fulfi lled with the power fl ow through the decisively selected transmission path. The new method of transmission loss allocation has distinct advantages over existing methods as locational dependence of loss allocation to both generator and load. The proposed algorithm is implemented on IEEE-30 bus system. The experimental results are obtained with proposed routing algorithm and compared with existing method. Results obtained using proposed method illustrate signifi cant improvements in reducing the transmission losses.

A Model-free Deep Reinforcement Learning Approach for Robotic Manipulators Path Planning

Wenxing Liu,Hanlin Niu,Muhammad Nasiruddin Mahyuddin,Guido Herrmann,Joaquin Carrasco 제어로봇시스템학회 2021 제어로봇시스템학회 국제학술대회 논문집 Vol.2021 No.10

Path planning problems have attracted much attention in robotic fields such as manipulators. In this paper, a model-free off-policy actor critic based deep reinforcement learning method is proposed to solve the classical path planning problem of a UR5 robot arm. Unlike standard path planning methods, the reward design of the proposed method contains smoothness reward, which assures smooth trajectory of the UR5 robot arm when accomplishing path planning tasks. Additionally, the proposed method does not rely on any model while the standard path planning method is model-based. The proposed method not only guarantees that the joint angle of the UR5 robotic arm lies within the allowable range each time when it reaches the random target point, but also ensures that the joint angle of the UR5 robotic arm is always within the allowable range during the entire episode of training. A standard path planning method was implemented in Robot Operating System (ROS) and the proposed method was applied in CoppeliaSim to validate the feasibility. It can be inferred from the experiment that the training with the proposed method is successful.

Eradication of Banana Bunchy Top Virus (BBTV) Through Meristem Culture of Infected Plant Banana cv. Sabri

Md. Humayun Kabir Shiragi,Md. Abdullahil Baque,Khandokar Md. Nasiruddin 한국원예학회 2010 Horticulture, Environment, and Biotechnology Vol.51 No.3

An efficient protocol was established to produce virus free in vitro banana plantlets through meristem culture of virus infected four months old banana suckers cv. Sabri. Murashige and Skoog (MS) medium supplemented with different levels of BAP (0, 3, 4 and 5 ㎎ · ℓ?¹) and IAA (0.0, 1.0, 1.5, 2.0 and 2.5 ㎎ · ℓ?¹) were used for shoot proliferation in Experiment-I. Half strength of MS medium supplemented with different levels of IBA (0, 1, 2, 3 ㎎ · ℓ?¹), NAA (0, 2, 3, 4 ㎎ · ℓ?¹) were treated for root formation in Experiment-II. ELISA test was performed to confirm virus eradication rate of regenerated plants and survival rate of regenerated plants in Experiment-III. The treatment combination of 4 ㎎ · ℓ?¹ BAP + 2.5 ㎎ · ℓ?¹ IAA produced the highest number of shoots (3.4 explant-1), while the longest shoot (3.49 cm), maximum number of leaves (3.37 plantlet-1) and longest leaves (2.22 cm) were obtained in the culture treated with 5 ㎎ · ℓ?¹ BAP. On the contrary, for plantlets cultured on half strength of MS medium supplemented with different levels of IBA and NAA, the highest number of vigorous roots (8.01 explant-1) and maximum root length (4.64 cm) were observed at treatment combinations of 2 ㎎ · ℓ?¹ IBA + 4 ㎎ · ℓ?¹ NAA and 2 ㎎ · ℓ?¹ IBA+ 3 ㎎ · ℓ?¹ NAA, respectively. The combinations of 3 ㎎ · ℓ?¹ IBA + 3 ㎎ · ℓ?¹ NAA produced more vigorous roots while less vigorous roots were observed at respective control. The rate of virus free plant regeneration from banana bunchy top virus (BBTV) infected sources was 57.14%. However, the highest plant survival rate (83.33%) was observed in a mixture of sand, soil and cow dung (1:1:1) and in a mixture of coir and soil (1:2). These results suggested that eradication of BBTV through meristem culture can be used as an effective tool for commercial exploitation of virus free banana production.

Sources of Carbonaceous Materials in the Airborne Particulate Matter of Dhaka

Begum, Bilkis A.,Hossain, Anwar,Saroar, Golam,Biswas, Swapan K.,Nasiruddin, Md.,Nahar, Nurun,Chowdury, Zohir,Hopke, Philip K. Korean Society for Atmospheric Environment 2011 Asian Journal of Atmospheric Environment (AJAE) Vol.5 No.4

To explore the sources of carbonaceous material in the airborne particulate matter (PM), comprehensive PM sampling was performed (3 to 14 January 2010) at a traffic hot spot site (HS), Farm Gate, Dhaka using several samplers: AirMetrics MiniVol (for $PM_{10}$ and $PM_{2.5}$) and MOUDI (for size fractionated submicron PM). Long-term PM data (April 2000 to March 2006 and April 2000 to March 2010 in two size fractions ($PM_{2.2}$ and $PM_{2.2-10}$) obtained from two air quality-monitoring stations, one at Farm Gate (HS) and another at a semi-residential (SR) area (Atomic Energy Centre, Dhaka Campus, (AECD)), respectively were also analyzed. The long-term PM trend shows that fine particulate matter concentrations have decreased over time as a result of government policy interventions even with increasing vehicles on the road. The ratio of $PM_{2.5}/PM_{10}$ showed that the average $PM_{2.5}$ mass was about 78% of the $PM_{10}$ mass. It was also found that about 63% of $PM_{2.5}$ mass is $PM_1$. The total contribution of BC to $PM_{2.5}$ is about 16% and showed a decreasing trend over the years. It was observed that $PM_1$ fractions contained the major amount of carbonaceous materials, which mainly originated from high temperature combustion process in the $PM_{2.5}$. From the IMPROVE TOR protocol carbon fraction analysis, it was observed that emissions from gasoline vehicles contributed to $PM_1$ given the high abundance of EC1 and OC2 and the contribution of diesel to $PM_1$ is minimal as indicated by the low abundance of OC1 and EC2. Source apportionment results also show that vehicular exhaust is the largest contributors to PM in Dhaka. There is also transported $PM_{2.2}$from regional sources. With the increasing economic activities and recent GDP growth, the number of vehicles and brick kilns has significantly increased in and around Dhaka. Further action will be required to further reduce PM-related air pollution in Dhaka.

Sources of Carbonaceous Materials in the Airborne Particulate Matter of Dhaka

Bilkis A. Begum,Philip K. Hopke,Anwar Hossain,Golam Saroar,Swapan K. Biswas,Md. Nasiruddin,Nurun Nahar,Zohir Chowdury 한국대기환경학회 2011 Asian Journal of Atmospheric Environment (AJAE) Vol.5 No.4

To explore the sources of carbonaceous material in the airborne particulate matter (PM), comprehensive PM sampling was performed (3 to 14 January 2010)at a traffic hot spot site (HS), Farm Gate, Dhaka using several samplers: AirMetrics MiniVol (for PM_10and PM_2.5) and MOUDI (for size fractionated submicron PM). Long-term PM data (April 2000 to March 2006 and April 2000 to March 2010 in two size fractions (PM2.2 and PM_2.2-10) obtained from two air quality-monitoring stations, one at Farm Gate (HS) and another at a semi-residential (SR) area (Atomic Energy Centre, Dhaka Campus, (AECD)), respectively were also analyzed. The long-term PM trend shows that fine particulate matter concentrations have decreased over time as a result of government policy interventions even with increasing vehicles on the road. The ratio of PM_2.5/PM_10 showed that the average PM_2.5 mass was about 78% of the PM10 mass. It was also found that about 63% of PM_2.5 mass is PM_1. The total contribution of BC to PM_2.5 is about 16%and showed a decreasing trend over the years. It was observed that PM_1 fractions contained the major amount of carbonaceous materials, which mainly originated from high temperature combustion process in the PM_2.5. From the IMPROVE TOR protocol carbon fraction analysis, it was observed that emissions from gasoline vehicles contributed to PM_1 given the high abundance of EC1 and OC2 and the contribution of diesel to PM_1 is minimal as indicated by the low abundance of OC1 and EC2. Source apportionment results also show that vehicular exhaust is the largest contributors to PM in Dhaka. There is also transported PM_2.2 from regional sources. With the increasing economic activities and recent GDP growth,the number of vehicles and brick kilns has significantly increased in and around Dhaka. Further action will be required to further reduce PM-related air pollution in Dhaka.