The γ/γ＇ microstructure of a Re-containing Ni-based single crystal super alloy after a two-step aging was studied using scanning electron microscopy （SEM）,transmission electron microscopy （TEM） and scanning tra...The γ/γ＇ microstructure of a Re-containing Ni-based single crystal super alloy after a two-step aging was studied using scanning electron microscopy （SEM）,transmission electron microscopy （TEM） and scanning transmission electron microscopy （STEM）.The crystals were grown by the floating zone （FZ） method.Both cuboidal and spherical γ＇ precipitates were formed after a two-step aging.The size of the cuboidal γ＇ phases first increased and then decreased with the extension of the second-step aging time.Re,Co and Cr strongly concentrated in the γ phase whereas Ni and Al enriched in the γ＇ phase.Thermodynamic calculation by JMatPro was performed to explain the experimental observations.展开更多
The concept of competitiveness influenced by many factors is analyzed in terms of terminology distinctions. This is the reason of numerous definitions of this term included in the first part of the paper, which varies...The concept of competitiveness influenced by many factors is analyzed in terms of terminology distinctions. This is the reason of numerous definitions of this term included in the first part of the paper, which varies according to the aspect of the analysis, analyzed marketing unit, tourism product, geographical unit, region, destination, or entities that offer an acceptable integrated product a package by specific indicators for comparison of elements of competitiveness. The first part of the article theoretically emphasizes the distinction in defining the concept of competitiveness from various aspects of the analyzed market subjects （different features and facilities provided）, and from those aspects of their specific business relationship in the market. Special contribution to the study of competitiveness is contained in the second part of the paper that analyzes the existing situation of intermediation in the European tourism market. This research is based on using the data of descriptive statistics and the secondary research which gives insights into the business of travel agencies, using the data such as number of employees, annual personnel costs, and the average annual cost per person employed in travel agencies in some European countries. The changes in the environment, and the competition initiate a need for an analysis of the internal environment, travel agencies＇ tasks, and their organizational structure. Also, the results conducted research on a sample of 500 travel agencies in 20 European countries indicate the dominance of quality service, price, and value for money as key factors of demand for achieving the competitiveness. It indicates new trends focused on needs for more specific--integrated tourist products that ensure the quality of service, value for money, and for the time that tourists invest in their obtaining.展开更多
Anton Webem＇s （1883-1945） largest project of the early the 1930s, the Concerto for Nine （solo） Instrument＇s Op. 24, is for flute, oboe, clarinet, horn, trumpet, trombone, violin, viola, and piano. This serial w...Anton Webem＇s （1883-1945） largest project of the early the 1930s, the Concerto for Nine （solo） Instrument＇s Op. 24, is for flute, oboe, clarinet, horn, trumpet, trombone, violin, viola, and piano. This serial work＇s analysis became almost as famous as the concerto itself. Highly economical, short, concentrated and free relationship between the intervals take over from tonality as the main organizational principle ＂pontillistic＂ style. The clear and transparent frame ＂Klangfarbenmelodie＂, is a row, that was distributed among different instruments. So that, several notes can be heard in the same timbre. Like most of Webern works, there are quiet special effects like a whisper, string harmonics, pizzicato, muting, and athematic intevalic cells as the basic structural element. Concerto for Nine Instruments has succeeding series of twelve-tone works. Webern worked for a long time on the Concerto＇s raw, trying to arrive at an equivalent to the Latin word-square palindrome which reads the same left to right from the top, right to left from the bottom, downwards from the top left, or upwards from the bottom right.SATOR AREPO TENET OPERA ROTAS展开更多
基金Project(08dj1400402) supported by the Major Program for the Fundamental Research of Science and Technology Committee of the Shanghai Municipality,ChinaProject(09ZZ16) supported by Innovation Program of Shanghai Municipal Education Committee,China
文摘The γ/γ＇ microstructure of a Re-containing Ni-based single crystal super alloy after a two-step aging was studied using scanning electron microscopy （SEM）,transmission electron microscopy （TEM） and scanning transmission electron microscopy （STEM）.The crystals were grown by the floating zone （FZ） method.Both cuboidal and spherical γ＇ precipitates were formed after a two-step aging.The size of the cuboidal γ＇ phases first increased and then decreased with the extension of the second-step aging time.Re,Co and Cr strongly concentrated in the γ phase whereas Ni and Al enriched in the γ＇ phase.Thermodynamic calculation by JMatPro was performed to explain the experimental observations.
文摘The concept of competitiveness influenced by many factors is analyzed in terms of terminology distinctions. This is the reason of numerous definitions of this term included in the first part of the paper, which varies according to the aspect of the analysis, analyzed marketing unit, tourism product, geographical unit, region, destination, or entities that offer an acceptable integrated product a package by specific indicators for comparison of elements of competitiveness. The first part of the article theoretically emphasizes the distinction in defining the concept of competitiveness from various aspects of the analyzed market subjects （different features and facilities provided）, and from those aspects of their specific business relationship in the market. Special contribution to the study of competitiveness is contained in the second part of the paper that analyzes the existing situation of intermediation in the European tourism market. This research is based on using the data of descriptive statistics and the secondary research which gives insights into the business of travel agencies, using the data such as number of employees, annual personnel costs, and the average annual cost per person employed in travel agencies in some European countries. The changes in the environment, and the competition initiate a need for an analysis of the internal environment, travel agencies＇ tasks, and their organizational structure. Also, the results conducted research on a sample of 500 travel agencies in 20 European countries indicate the dominance of quality service, price, and value for money as key factors of demand for achieving the competitiveness. It indicates new trends focused on needs for more specific--integrated tourist products that ensure the quality of service, value for money, and for the time that tourists invest in their obtaining.
文摘Anton Webem＇s （1883-1945） largest project of the early the 1930s, the Concerto for Nine （solo） Instrument＇s Op. 24, is for flute, oboe, clarinet, horn, trumpet, trombone, violin, viola, and piano. This serial work＇s analysis became almost as famous as the concerto itself. Highly economical, short, concentrated and free relationship between the intervals take over from tonality as the main organizational principle ＂pontillistic＂ style. The clear and transparent frame ＂Klangfarbenmelodie＂, is a row, that was distributed among different instruments. So that, several notes can be heard in the same timbre. Like most of Webern works, there are quiet special effects like a whisper, string harmonics, pizzicato, muting, and athematic intevalic cells as the basic structural element. Concerto for Nine Instruments has succeeding series of twelve-tone works. Webern worked for a long time on the Concerto＇s raw, trying to arrive at an equivalent to the Latin word-square palindrome which reads the same left to right from the top, right to left from the bottom, downwards from the top left, or upwards from the bottom right.SATOR AREPO TENET OPERA ROTAS
