Best Selling Books by Jae Lee

Join Chris, a curious 10-year-old, and their newfound friend, Nutmeg the squirrel, on an extraordinary adventure in "The Friendly Castle Adventure." Embark on a journey filled with mystery, enchantment, and friendship as they explore the magical world of the friendly castle. "The Friendly Castle Adventure" is a captivating children's book that aims to spark imagination, foster problem-solving skills, and emphasize the value of friendship and teamwork. Through an immersive story, young readers will be transported to a world of wonder, where they will accompany Chris and Nutmeg on a quest filled with exciting challenges, unexpected discoveries, and heartwarming interactions.

Mobile robots navigation includes different interrelated activities: (i) perception, as obtaining and interpreting sensory information; (ii) exploration, as the strategy that guides the robot to select the next direction to go; (iii) mapping, involving the construction of a spatial representation by using the sensory information perceived; (iv) localization, as the strategy to estimate the robot position within the spatial map; (v) path planning, as the strategy to find a path towards a goal location being optimal or not; and (vi) path execution, where motor actions are determined and adapted to environmental changes. The book addresses those activities by integrating results from the research work of several authors all over the world. Research cases are documented in 32 chapters organized within 7 categories next described.

A fundamental kinetic model based upon the Hougen-Watson formalism was derived as a basis not only for a better understanding of the reaction behavior but also for the design and simulation of industrial reactors. Kinetic experiments were carried out using a commercial potassium-promoted iron catalyst in a tubular reactor under atmospheric pressure. Typical reaction conditions were temperature = 620°C, steam to ethylbenzene mole ratio = 11, and partial pressure of N2 diluent = 0.432 bar. Experimental data were obtained for different operating conditions, i.e., temperature, feed molar ratio of steam to ethylbenzene, styrene to ethylbenzene, and hydrogen to ethylbenzene and space time. The effluent of the reactor was analyzed on-line using two GCs. Kinetic experiments for the formation of minor by-products, i.e. phenylacetylene, [alpha]-methylstyrene, [beta]-methylstyrene, etc, were conducted as well. The reaction conditions were: temperature = 600°C ~ 640°C, a molar ratio of steam to ethylbenzene = 6.5, and partial pressure of N2 diluent = 0.43 bar and 0.64 bar. The products were analyzed by off-line GC. The mathematical model developed for the ethylbenzene dehydrogenation consists of nonlinear simultaneous differential equations in multiple dependent variables. The parameters were estimated from the minimization of the multiresponse objective function which was performed by means of the Marquardt algorithm. All the estimated parameters satisfied the statistical tests and physicochemical criteria. The kinetic model yielded an excellent fit of the experimental data. The intrinsic kinetic parameters were used with the heterogeneous fixed bed reactor model which is explicitly accounting for the diffusional limitations inside the porous catalyst. Multi-bed industrial adiabatic reactors with axial flow and radial flow were simulated and the effect of the operating conditions on the reactor performance was investigated. The dynamic equilibrium coke content was calculated using detailed kinetic model for coke formation and gasification, which was coupled to the kinetic model for the main reactions. The calculation of the dynamic equilibrium coke content provided a crucial guideline for the selection of the steam to ethylbenzene ratio leading to optimum operating conditions.

A hardware state-machine circuit is described which efficiently implements the algorithm and outputs a four pixel segment every machine cycle."

Based on measurement results on a circular button ferrite inductor developed in this study, a prototype un-gapped variable ferrite inductor, which utilizes selected saturation to increase energy storage and can be controlled by an orthogonal current, was proposed in this study. The measurements on an assembled prototype rectagular button ferrite inductor based on the above design confirmed the expected behavior. The measured inductance was observed not only to decrease with increasing orthogonal current, but also with an appropriate choice of orthogonal current the inductance only has a small fluctuation within a designed excitation current range. Finite element method was extensively used to analyze and model problems involved in this study. 2D linear FEM modeling was used to evaluate the internal orthogonal field along a toroid axis and flux line distribution of magnetic devices, while 3D nonlinear FEM modeling was successfully used to study the evolution of the saturation regions of variable inductors and to model the terminal inductance of the variable inductors.

In addition, various existing policy dialogue channels at the central government, regional government, and business levels are examined.On the basis of assessment of existing policy dialogue channels and comparative studies on existing regional consultative entities such as APEC, ASEAN 3 framework and ASEAN, the main characteristics and expected positive effects of the TEC as well as the gradual strategy to realize it are suggested.Being a regional consultative entity for economic cooperation, the structure of the TEC is likely to be similar to that of APEC. However, since it has only three members, it would be much easier to agree on the agenda and to operate effectively. In addition, the possible areas of cooperation would be more extensive than other regional consultative entities, because the three countries share many commonalities such as strong manufacturing sectors, weak service sectors and agriculture, high external energy dependency, and usage of Chinese characters.

This study was developed to identify the dynamics of family decision-making processes when purchasing a youth sport camps. Family decision-making has been an interesting subject in consumer behavior for many years but youth sport programs have not been widely studied. To examine the family decision process, both parents and children were asked to complete a web-based questionnaire in which they reported their perceptions of the relative influence of mother, father and child at each decision stage. Family members' influence in the purchase decision was analyzed using a three-phase decision stage model; problem initiation stage, information search stage, and final purchase decision. Both parents and children perceived parents to have the most influence at each stage. Parents perceived that between the husband and wife, decisions were mostly made jointly. Children had the most influence at the problem initiation stage which was consistent with previous literature regarding recreation and leisure service. As children's age increased, so did their relative influence over the purchase decision. The dominance of parents at the overall decision-making process and children's involvement at the beginning of the decision process indicates that youth sport program marketers should develop dual channel marketing strategies to effectively and efficiently reach decision makers at each stage of the process.

Jitter is defined as timing uncertainties of digital signals at their intended ideal positions in time. While it undermines valuable clock budget and limits the maximum clock frequency in I/O circuitry, it is one of the most difficult parameters to measure accurately due to the small value and randomness. This thesis proposes a random jitter RMS measurement method using AND and OR operations, which targets BIST applications. This thesis is organized as follows. Chapter 1 introduces the motivation of the proposed work. It includes a comparison between two major approaches to jitter measurement. Chapter 2 explains the proposed random jitter estimation method in detail. Chapter 3 describes circuit implementations with design considerations. Chapter 4 demonstrates estimation results from circuit level simulation runs. Chapter 5 discusses the source of error in the jitter estimation and concludes.

Factors affecting the in vivo nitrate reductase assay were investigated in order to optimize the assay conditions for various tissues of MM 106 apple trees. Optimum concentrations of nitrate and phosphate for in vivo nitrate reductase activities ranged from 50 to 100 mM and were tissue-specific. The optimum pH of the assay medium was 7.5. Vacuum infiltration and the addition of 2% (v/v) n-propanol to the assay medium resulted in stimulation of nitrate reductase activity. The in vivo nitrate reductase assays for leaves and stems were linear for at least 60 minutes following an initial 30 minute lag, whereas there was no lag phase in root tissues. The effect of nitrate supply in the nutrient solution on nitrogen accumulation and nitrate reductase activity was examined. Increasing nitrate supply resulted in increases in the concentration and amount of reduced nitrogen in leaves and stems. The reduced nitrogen contents of trunk bark and trunk wood were significantly decreased when low nitrate was supplied, whereas that of roots was changes insignificantly. Most organs of MM 106 apple trees contained only a small portion of their total nitrogen as nitrate. The activity of nitrate reductase was measured using in vivo assay either with or without nitrate, namely in vivo +NO$sb3sp-$ and in vivo $-$NO$sb3sp-$ nitrate reductase assay. The in vivo $-$NO$sb3sp-$ assay may be the better way to estimate reduced nitrogen accumulation than the in vivo +NO$sb3sp-$ assay. Increasing nitrate supply resulted in significant increases of in vivo $-$NO$sb3sp-$ nitrate reductase activities of all organs. The proportion of leaf nitrate reductase activity to the total activity increased as the nitrate supply increased. The stems also contributed considerably to the total nitrate reductase activity accounting for as much as 23.5% of the total activity. Therefore, it can be concluded that nitrate reduction can occur in various parts of MM 106 apple trees as long as nitrate is available. Effect of darkness on nitrate reduction was also examined in MM 106 apple leaves. As the period of darkness increased, nitrate reductase activity decreased and the accumulation of nitrate increased. The decrease in nitrate reductase activity with increasing period of darkness may be related to the decrease in soluble sugars.

In treatment effect analysis, there are many cases where the treatment of interest is ordered (e.g. general-education years or medicine doses) and the control treatment is not zero, but a different type of treatment (a vocational training or a surgery). We develop an approach to find effects of partly ordered treatments, while correcting for possible treatment endogeneity with nearly parametric control functions. We use this control function approach, along with its supplementary version, to estimate effects of military ranks (ordered treatments) on wage relative to non-veteran status (control treatment) with the Wisconsin Longitudinal Study data. In our empirical analysis, the military rank effects differ much: officer has large positive effects, but enlisted ranks have small or no effects.

A radiation-resistant bacterium, Deinococcus geothermalis has various stress response mechanisms, including antioxidation. Features that maintain vitality at high radiation doses include the following: enzymatic scavengers of ROS such as catalase, SOD, and peroxidase; strain-specific DNA repair systems such as Deinococcal unique proteins; non-enzymatic responses such as manganese complexes, carotenoids, and DNA-binding proteins. This chapter summarizes the primary response mechanism by redox balance centered on the cystine transporter. It also reviews action characteristics of DNA-binding protein Dps and a putative LysR family protein, and effects on loss of function of the carotenoid biosynthesis genes by transposition of insertion sequences. Environmental adaptation and molecular evolution of radiation-resistant bacterium are also considered to explain the potentials of molecular behavior induced by oxidative stress.