Navigation systems

In this thesis we present different navigation systems which may be used also in surveying. Map as a basis of navigation is described at the beginning. Next, we focus on navigation based on celestial bodies. We present basic terms such as navigation and orientation and describe some primitive methods, which had been used for orientation without compass. We present two important time keeping instruments that facilitated the process of position determination, the chronometer and chronograph, and introduce two typical navigation instruments, compass and a sextant. The major part of the thesis is dedicated to descriptions of navigation systems which include the GNSS-systems, SBAS-systems, pseudolites, TPS-systems, INS-systems, radar systems and mobile communications networks. Systems are presented in a similar form, containing the structure, operation, accuracy and utility

Usporedba dugovječnosti i proizvodnih svojstava holstein i simentalskih krava različitog podrijetla

The aim of this research was to establish whether there are differences in the longevity and production characteristics within the studied breeds of cows of different origin. Holstein cows of Slovenian (461) and foreign (356) origin and Simmental cows of Slovenian (261) and foreign (43) origin were studied. Only culled animals that previously had between 1 and 9 lactations were included. The analyzed properties consisted of characteristics related to the longevity and lifetime productivity. Compared with Slovenian cows, imported Holstein cows had a significantly longer calving interval (1210±31 days, 1337±39 days, P=0.008), a longer dry period (172±6 days, 192±7 days, P=0.022), and a significantly lower daily milk yield (23.0±0.2 kg, 22.0±0.3 kg, P=0.002). Significant differences between Simmental cows of Slovenian and foreign origin were observed in functional productivity (1317±52 days, 1808±186 days, P=0.006), longevity (2175±53 days, 2701±145 days, P=0.004), and duration of lifetime lactation (990±38 days, 1265±137 days, P=0.037).Cilj rada bio je utvrditi postoje li razlike u dugovječnosti i proizvodnim karakteristikama između pasmina krava različitog podrijetla. Proučavane su holstein krave slovenskog (461) i stranog (356) podrijetla i simentalske krave slovenskog (261) i stranog (43) podrijetla. Samo krave koje su imale između 1 i 9 laktacija bile su uključene u istraživanje. Analizirana svojstva čine karakteristike vezane za dugovječnost i životnu proizvodnju. U usporedbi sa slovenskim kravama, uvezene holstein krave imale su značajno dulji interval između teljenja (1210±31 dana, 1337±39 dana, P=0,008), dulji suhostaj (172±6 dana, 192±7 dana, P=0,022), i značajno niži prinos mlijeka dnevno (23,0±0,2 kg, 22,0±0,3 kg, P=0,002). Statistički značajne razlike zabilježene su između krava slovenskoga i stranog podrijetla u promatranju funkcionalne produktivnosti (1317±52 dana, 1808±186 dana, P=0,006), dugovječnosti (2175±53 dana, 2701±145 dana, P=0,004) i u trajanju životne laktacije (990±38 dana, 1265±137 dana, P=0,037)

Usporedba dugovječnosti i proizvodnih svojstava holstein i simentalskih krava različitog podrijetla

The aim of this research was to establish whether there are differences in the longevity and production characteristics within the studied breeds of cows of different origin. Holstein cows of Slovenian (461) and foreign (356) origin and Simmental cows of Slovenian (261) and foreign (43) origin were studied. Only culled animals that previously had between 1 and 9 lactations were included. The analyzed properties consisted of characteristics related to the longevity and lifetime productivity. Compared with Slovenian cows, imported Holstein cows had a significantly longer calving interval (1210±31 days, 1337±39 days, P=0.008), a longer dry period (172±6 days, 192±7 days, P=0.022), and a significantly lower daily milk yield (23.0±0.2 kg, 22.0±0.3 kg, P=0.002). Significant differences between Simmental cows of Slovenian and foreign origin were observed in functional productivity (1317±52 days, 1808±186 days, P=0.006), longevity (2175±53 days, 2701±145 days, P=0.004), and duration of lifetime lactation (990±38 days, 1265±137 days, P=0.037).Cilj rada bio je utvrditi postoje li razlike u dugovječnosti i proizvodnim karakteristikama između pasmina krava različitog podrijetla. Proučavane su holstein krave slovenskog (461) i stranog (356) podrijetla i simentalske krave slovenskog (261) i stranog (43) podrijetla. Samo krave koje su imale između 1 i 9 laktacija bile su uključene u istraživanje. Analizirana svojstva čine karakteristike vezane za dugovječnost i životnu proizvodnju. U usporedbi sa slovenskim kravama, uvezene holstein krave imale su značajno dulji interval između teljenja (1210±31 dana, 1337±39 dana, P=0,008), dulji suhostaj (172±6 dana, 192±7 dana, P=0,022), i značajno niži prinos mlijeka dnevno (23,0±0,2 kg, 22,0±0,3 kg, P=0,002). Statistički značajne razlike zabilježene su između krava slovenskoga i stranog podrijetla u promatranju funkcionalne produktivnosti (1317±52 dana, 1808±186 dana, P=0,006), dugovječnosti (2175±53 dana, 2701±145 dana, P=0,004) i u trajanju životne laktacije (990±38 dana, 1265±137 dana, P=0,037)

Usporedba dugovječnosti i proizvodnih svojstava holstein i simentalskih krava različitog podrijetla

The aim of this research was to establish whether there are differences in the longevity and production characteristics within the studied breeds of cows of different origin. Holstein cows of Slovenian (461) and foreign (356) origin and Simmental cows of Slovenian (261) and foreign (43) origin were studied. Only culled animals that previously had between 1 and 9 lactations were included. The analyzed properties consisted of characteristics related to the longevity and lifetime productivity. Compared with Slovenian cows, imported Holstein cows had a significantly longer calving interval (1210±31 days, 1337±39 days, P=0.008), a longer dry period (172±6 days, 192±7 days, P=0.022), and a significantly lower daily milk yield (23.0±0.2 kg, 22.0±0.3 kg, P=0.002). Significant differences between Simmental cows of Slovenian and foreign origin were observed in functional productivity (1317±52 days, 1808±186 days, P=0.006), longevity (2175±53 days, 2701±145 days, P=0.004), and duration of lifetime lactation (990±38 days, 1265±137 days, P=0.037).Cilj rada bio je utvrditi postoje li razlike u dugovječnosti i proizvodnim karakteristikama između pasmina krava različitog podrijetla. Proučavane su holstein krave slovenskog (461) i stranog (356) podrijetla i simentalske krave slovenskog (261) i stranog (43) podrijetla. Samo krave koje su imale između 1 i 9 laktacija bile su uključene u istraživanje. Analizirana svojstva čine karakteristike vezane za dugovječnost i životnu proizvodnju. U usporedbi sa slovenskim kravama, uvezene holstein krave imale su značajno dulji interval između teljenja (1210±31 dana, 1337±39 dana, P=0,008), dulji suhostaj (172±6 dana, 192±7 dana, P=0,022), i značajno niži prinos mlijeka dnevno (23,0±0,2 kg, 22,0±0,3 kg, P=0,002). Statistički značajne razlike zabilježene su između krava slovenskoga i stranog podrijetla u promatranju funkcionalne produktivnosti (1317±52 dana, 1808±186 dana, P=0,006), dugovječnosti (2175±53 dana, 2701±145 dana, P=0,004) i u trajanju životne laktacije (990±38 dana, 1265±137 dana, P=0,037)

Comparison of longevity and production traits of Holstein and Simmental cows of different origin in Slovenia

The aim of this research was to establish whether there are differences in the longevity and production characteristics within the studied breeds of cows of different origin. Holstein cows of Slovenian (461) and foreign (356) origin and Simmental cows of Slovenian (261) and foreign (43) origin were studied. Only culled animals that previously had between 1 and 9 lactations were included. The analyzed properties consisted of characteristics related to the longevity and lifetime productivity. Compared with Slovenian cows, imported Holstein cows had a significantly longer calving interval (1210±31 days, 1337±39 days, P=0.008), a longer dry period (172±6 days, 192±7 days, P=0.022), and a significantly lower daily milk yield (23.0±0.2 kg, 22.0±0.3 kg, P=0.002). Significant differences between Simmental cows of Slovenian and foreign origin were observed in functional productivity (1317±52 days, 1808±186 days, P=0.006), longevity (2175±53 days, 2701±145 days, P=0.004), and duration of lifetime lactation (990±38 days, 1265±137 days, P=0.037)