Ternary germanides LnAgGe (Ln = Y, Sm, GdLu) with ordered Fe2P-type structure
Ternary germanides LnAgGe (Ln = Y, Sm, GdLu) with ordered Fe2P-type structure
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DOI:
10.1016/0925-8388(96)02201-3
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发表时间:
1996-05
影响因子:
6.2
通讯作者:
Brendan Gibson;R. Pöttgen;Reinhard K. Kremer;A. Simon;K. Ziebeck
中科院分区:
文献类型:
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作者:
Brendan Gibson;R. Pöttgen;Reinhard K. Kremer;A. Simon;K. Ziebeck
At the university where we teach, the buildings are separated by manicured lawns and carefully cultivated flower gardens. The concrete walks that connect the buildings carefully skirt these lawns and gardens. In August the campus is an array of lush lawns and beautiful flowers. In September the students return and within weeks there are muddy trampled paths across the lawns indicating the shortest distance between two buildings. These paths, called" desire lines," are a legitimate expression of a student body with too little time and too great a distance between classes. The usual response of the administration is to erect fences across the lines in an attempt to force the students onto the concrete walks. Similarly, in an engineering office, the office hours were 8: 30 to 5: 00 with a half-hour lunch. The office was on the fringe of the central business district and the lunch period was the only time available to the employees to run personal errands, do shopping, banking, etc. As a result many of them were often half an hour late in returning from their lunch period. Also, because of the office location, the evening rush-hour traffic peaked in the 5: 00 to 5: 15 period. To avoid the rush most employees continued working until about 5: 30 pm The management's reaction was to ignore the free overtime it was getting and to rant and rail about unreliable employees who were always late returning from lunch.Alternative solutions to each of the foregoing instances are obvious: build sidewalks where the desire lines are and change the office hours to 8: 30 to 5: 30 with a one-hour lunch period. Management and administrators, however, often have great difficulty in making obvious decisions. They take refuge in pat phrases such as," people must conform to rules," and" you can't walk on the grass"; they fail to either recognize or acknowledge the social system they are managing. This article suggests seven" rules of thumb" for managing engineers and scientists. They are derived partly from man-