SYSTEM R is a variant of the original STRIPS by Fikes and Nilsson (1971) (called forwardchaining, recursive STRIPS in Nilsson [1998]). Briefly speaking, given a conjunction of simple goals, it selects one of them to work on. If there is an action that is executable and will make this simple goal true once executed, then it does this action and then tries to achieve the other simple goals in the...

We carry out a comprehensive error assessment of Gravity Recovery and Climate Experiment (GRACE) GRACE Follow-On (GFO) Release-6 (RL06) solutions from the Center for Space Research (CSR) at University Texas Austin, NASA Jet Propulsion Laboratory (JPL), Geoforschungszentrum (GFZ). The study covers period April 2002 to August 2020 uses two different methods, one based upon open ocean residuals (O...

this case is a rare aspect of left inguinal hernia. the patient was a 60-years old man with left scrotal mass since childhood. in the operating room, the hernia sac was opened which included cecum and appendix that is called left amyand`s hernia. the patient underwent herniorrhaphy with lichtenstein repair.

despite increasing detection rates of various forms of extrapulmonary tuberculosis (tb), thyroid involvement with tubercle bacilli is rarely encountered and its imaging features have been reported in less than a handful of cases. herein, we present the clinical, pathologic and imaging (ultrasound and ct scan) features of tb involvement of the thyroid gland in a 65-year-old woman who presented w...

in this research, papaya slices with dimensions of 0.5×2×5 cm3 were dried at 45 °c using a cabinet dryer in which drying air velocity and relative humidity were 0.9 m/s and 30%, respectively. the moisture diffusion coefficient of papaya was determined in this drying condition. mass transfer equation with its boundary conditions was solved based on finite difference method. finally, coefficient ...

Modeling and simulation of processing plants are widely used in industry. Construction of a mathematical model for a plant is a time-consuming and error-prone task. In light of extensive advancements in computer science (both hardware and software), computers are becoming a necessary instrument in industrial activities. Many software tools for modeling, simulation and optimization of proces...

in this paper, a neural network model reference adaptive system speed observer is designed, which can be used in speed control of linear induction motors (lims). dynamical equations of lim have been considered accurate. in other words, the end effect and the electrical losses of the motor have been included in the motor equivalent circuit. then equations of the reference model and adaptive mode...