12 research outputs found

    Конкурентоспособность продукции «Шанхай Тобакко групп» на рынке табачных изделий

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    Актуальность работы заключается в том, что в условиях ужесточения конкурентный борьбы любая компания вынуждена управлять своей конкурентоспособностью на основе разработанной конкурентной стратегии. В процессе исследования проводились изучение и систематизация информации по предмету и объекту исследования. Источники информации представлены в списке использованных источников. Научная новизна работы заключается в разработке рекомендаций по повышению конкурентоспособности табачной компании. Итогом работы стали рекомендации по повышению уровня конкурентоспособности компании "Шанхай Тобакко групп". Результаты исследования будут применены в деятельности компании "Шанхай Тобакко групп".The urgency of the work lies in the fact that in the context of toughening of competitive struggle, any company is forced to manage its competitiveness on the basis of the developed competitive strategy. During the research, the study and systematization of information on the subject and object of the study was conducted. Sources of information are listed in the list of sources used. The scientific novelty of the work is to develop recommendations for increasing the competitiveness of the tobacco company. The work resulted in recommendations for increasing the level of competitiveness of the Shanghai Tobacco Group. The results of the research will be applied to the activities of the Shanghai Tobacco Group

    Проектирование системы электроснабжения перевалопогрузочного комплекса морского порта

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    Объектом исследования является электрическая часть перевалопогрузочного комплекса ОАО «Восточный порт». Цель работы – проектирование системы электроснабжения перевалопогрузочного комплекса морского порта. В процессе исследования проводился сбор исходных данных в ходе производственной практики на объекте исследования. В результате была спроектирована схема электроснабжения от подстанции энергосистемы, до конечного электроприемника. Были выбраны кабели и провода, коммутационное оборудование. Также был произведен экономический расчет капитальных затрат на сооружение данной схемы, определены условия безопасности и гигиены труда рабочих предприятия.The object of the research is part of an electric perevalopogruzochnogo complex JSC "Vostochny Port". The purpose of the work - design of power supply system perevalopogruzochnogo seaport complex. The study was conducted to collect baseline data in the course of practical training on the subject of the study. As a result, power supply circuit has been designed from the substation grid, appliance, to the end. Cables and wires, switching equipment were chosen. There was also made economic calculation of capital costs for the construction of the scheme, identified the security conditions and hygiene of workers of the enterprise

    Partial Coherence Laser Interferometry in Highly Myopic versus Emmetropic Eyes

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    Purpose: To investigate the reliability of partial coherence laser interferometry for optical biometry in highly myopic eyes. Methods: Axial length measurements by the IOLMaster (Carl Zeiss Meditec, Germany) with signal-to-noise ratio (SNR) ≥2 were performed in 52 consecutive myopic subjects with axial length ≥26.5 mm and 45 emmetropic patients before cataract surgery. Axial length measurements and SNR were analyzed and compared among the two study groups. Results: Axial length measurements were feasible in 46 of 52 (88.5%) highly myopic eyes and in 41 of 45 (91.1%) eyes with normal axial length. To achieve two reliable axial length values with SNR ≥2, a mean number of 2.06±0.25 measurements was necessary in myopic eyes and 2.10±0.37 in emmetropic counterparts. Mean SNR after two measurements was 4.98±2.44 in myopic eyes versus 5.56±2.32 in control eyes. Even though successful measurement was independent of preoperative visual acuity, patients with visual acuity better than 20/63 showed significantly higher SNR values. Conclusions: Partial coherence laser interferometry shows satisfying feasibility and good signal quality for axial length determination in highly myopic eyes with stable retinal condition and clear media

    Intraocular lens power calculation for plus and minus lenses in high myopia using partial coherence interferometry

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    Purpose We assessed the accuracy of lens power calculation in highly myopic patients implanting plus and minus intraocular lenses (IOL). Methods We included 58 consecutive, myopic eyes with an axial length (AL) > 26.0 mm, undergoing phacoemulsification and IOL implantation following biometry using the IOLMaster 500. For lens power calculation, the Haigis formula was used in all cases. For comparison, refraction was back-calculated using the Barrett Universal II (Barrett), Holladay I, Hill-RBF (RBF) and SRK/T formulae. Results The mean axial length was 30.17 +/- 2.67 mm. Barrett (80%), Haigis (87%) and RBF (82%) showed comparable numbers of IOLs within 1 diopter (D) of target refraction. Visual acuity (BSCVA) improved (p 28-days postsurgery). The median absolute error (MedAE) of Barrett 0.49 D, Haigis 0.38, RBF 0.44 and SRK/T 0.44 did not differ. The MedAE of Haigis was significantly smaller than Holladay (0.75 D; p = 0.01). All median postoperative refractive errors (MedRE) differed significantly with the exception of Haigis to SRK/T (p = 0.6): Barrett - 0.33 D, Haigis 0.25, Holladay 0.63, RBF 0.04 and SRK/T 0.13. Barrett, Haigis, Holladay and RBF showed a tendency for higher MedAEs in their minus compared to plus IOLs, which only reached significance for SRK/T (p = 0.001). Barrett (p < 0.001) and RBF (p = 0.04) showed myopic, SRK/T (p = 002) a hyperopic shift in their minus IOLs. Conclusions In highly myopic patients, the accuracies of Barrett, Haigis and RBF were comparable with a tendency for higher MedAEs in minus IOLs. Barrett and RBF showed myopic, SRK/T a hyperopic shift in their minus IOLs
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