Calculation of reduced coefficients and matrix elements in jj-coupling

A program RCFP will be presented for calculating standard quantities in the decomposition of many-electron matrix elements in atomic structure theory. The list of quantities wich are supported by the present program includes the coefficients of fractional parentage, the reduced coefficients of fractional parentage, the reduced matrix elements of the unit operator T^{(k)} as well as the completely reduced matrix elements of the operator W^{(k_jk_q)} in jj-coupling. These quantities are now available for all subshells (nj) with j \leq 9/2 including partially filled 9/2-shells. Our program is based on a recently developed new approach on the spin-angular integration which combines second quantization and quasispin methods with the theory of angular momentum in order to obtain a more efficient evaluation of many-electron matrix elements. An underlying Fortran 90/95 module can directly be used also in (other) atomic structure codes to accelerate the computation for open-shell atoms and ions

Full Order Observer for Speed Estimation of Vector Controlled Induction Motor Drive

In this paper, full order observer speed estimation of a vector controlled induction motor is presented. To decrease the associated maintenance costs, the most conventional model reference adaptive system MRAS structure is used to estimate the rotor speed. The adaptive full-order observer based on IM equation is used to estimate stator currents and rotor flux. Lyapunov’s stability criterion is employed to estimate rotor speed. Synthesis of the controller has been described. Digital simulations have been carried out in order to evaluate the effectiveness of the proposed sensorless drive system. The results prove excellent steady-state and dynamic performance of the drive system in a wide speed range, which confirms validity of the proposed scheme.</jats:p

The study of the thyroid gland and the adrenal gland in the postpartum period in reindeer

Abstract. Purpose. Examination of the thyroid and adrenal glands in the postpartum period in reindeer. Methods. The objects of the study were morphological changes of the thyroid gland and adrenal glands in the postpartum period. Measurements and weighing are carried out, the state of glands is described. At the same time studied the condition of the genital organs doe some morphological changes, bearing in mind the relation of these glands to the reproductive function. Results. The obtained data on thyroid weight pregnant doe averaged 5.7 g doe in parturition – 45 g, 22–28 days after parturition – 8.9 and 7.3 g (individual animals may be individual differences). The weight of the adrenal glands increases to 5 days of puerperium by almost 1.5 times (2.8–4.8), then decreases to initial values, the size of this organ changes slightly. Thyroid gland pregnant doe and killed in 1–3 days after birth contains different size follicles. In the adrenal glands, the glomerular zone of the cortical substance is thicker than that of the stele doe. On the fifth day of the postpartum period in the ovaries, the largest number of follicles was noted, at the same time, the mass increases and the structure and vascularization of the adrenal glands changes, and in the thyroid gland, on the contrary, the mass decreases, a large number of small follicles are found, which indicates its increased function. Thus, studies have shown significant changes in the size and weight of the adrenal glands and thyroid gland in the postpartum period in reindeer. The scientific novelty is the change in the size and weight of the adrenal glands and thyroid gland of deer in the postpartum period.</jats:p

The analysis of reproductive ability of reindeer in different climatic zones of Yakutia

Abstract. The article presents the materials of the reproductive ability of reindeer in different climatic zones of Yakutia. The calving season of deer in different ulus of the Republic of Sakha (Yakutia) is different. The total duration of calving is 30-45 days (6–9 five days). The timing of calving determined by natural-climatic conditions, timing of the rut and the condition of the deer. Very important in the birth process is the state of the birth canal, and in them the osseous system and in particular the pelvis and its size. In the study of the pelvis of the deer, it turned out that the pelvis of the doe is somewhat more favorable than the pelvis of the cow. Line, which moves the fetus during the stage of breeding and lagging at the same distance from all the walls of the pelvis, called the axis of the pelvis. The axis of the doe pelvis is not a broken line like a cow. Other dimensions – the vertical diameter of the pelvic cavity is on average at doe 21.4 cm, from 21 to 22 cm, which corresponds to the birth of quite large fruit. Three measurements of the diameter of the entrance to the pelvis – dorsal, middle and ventral - show that the lumen of the pelvis of the doe is a trapezium with a length of the upper part on average 17.7 cm, and the lower – 5.8 cm. This proves that the fetus at birth can lie in a lateral or oblique position. The preparatory stage of labor have doe lasts from 24 to 36 hours, and is manifested in the form of anxiety doe, a fall in body temperature of 0.5–1 degrees, well-pronounced swelling of the vulva, relaxation of the Sacro-sciatic ligaments.</jats:p