Wu, Bin, E-mail: E-mail: Yang, Fengting Ding, Wen [State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072 (China) Xue, Ting, E-mail: E-mail: [College of Electrical Engineering and Automation, Tianjin Key Laboratory of Process Measurement and Control, Tianjin University, Tianjin 300072 (China) Within the slabs there are C-H⋯O and C-H⋯N hydrogen bonds and C-H⋯π inter-actions present.Ī novel calibration method for non-orthogonal shaft laser theodolite measurement systemĮnergy Technology Data Exchange (ETDEWEB) In the crystal, mol-ecules are linked by N-H⋯O and N-H⋯N hydrogen bonds, forming slabs lying parallel to (010). Its mean plane is inclined by 62.87 (8)° to the aryl ring to which it is attached, while the aryl rings of the biphenyl unit are inclined to one another by 20.81 (8)°. The 1, 2,5-thia-diazo-lidin-3-one 1,1-dioxide ring has an envelope conformation with the aryl-substituted N atom as the flap. The side chain is turned over on itself with an intra-molecular N-H⋯O hydrogen bond.
Ĭrystal structure of 5-eth-yl)carbamo-yl] side chain is protonated, while the 1, 2,5-thia-diazo-lidin-3-one 1,1-dioxide N atom is deprotonated. The theoretical principles on which they are based have been known for a long time, but.
An ETIS consists of two or more electronic theodolites and a computer, with peripheral hardware and suitable software. The development of electronic surveying instruments, such as electronic theodolites, and concurrent advances in computer technology, has revolutionised engineering surveying one of the more recent examples being the introduction of Electronic Theodolite Intersection Systems (ETISs). Electronic theodolite intersection systems
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