26 research outputs found
IzvlaÄenje strukovnog nazivlja iz strojarskih tekstova
U ovom radu prouÄiti ce se moguÄnosti Python-a i web2py-a za obradu i izvlaÄenje informacija iz teksta. Na poÄetku Äe biti dan kratki uvod u rad sa bazama podataka u Python-u. Zatim Äe se pokazati web2py. U tom dijelu pokazuje se veza
izmeÄu modela, kotntrolera i pregleda, te kako su oni meÄusobno povezani. To Äe
se ilustrirati malim primjerom u web2py-u. U treÄem dijelu Äe se razraditi ideja
kako iz teksta izvuÄi tehniÄke pojmove koji se nalaze u bazama podataka te kako
prikazati korisniku na jednostavan naÄin te mu uz to omoguÄiti interakciju s rezultatima. Za kraj dati Äe se algoritam koji Äe biti u moguÄnosti izvlaÄiti informacija
iz teksta (subjekt, objekta....) uz pomoÄ regularnih izraza i gramatiÄkih oblika rijeÄi
Servo sustav kamere pokretan glavom Äovjeka
Zbog malog vidnog kuta kamere u odnosu na ljudsko oko doÅ”lo se je na ideju da se naÄini ureÄaj koji Äe pomicati kameru na transportnom sredstvu, a bit Äe upravljan pomacima Äovjekove glave (gore-dolje i lijevo-desno). U radu je razraÄena ideja te je na kraju i realiziran sam sustav.
Sustav se sastoji od dva dijela. Prvi dio zove se sklop za mjerenje kuta zakreta glave i on se sastoji od žiroskopa, kontrolera, bluetooth modula i kacige na koju su smjeÅ”tene sve komponente. Ulaz u sustav je kut zakreta glave, koji se potom obraÄuje i Å”alje bežiÄno na drugi dio sustava. Drugi dio naziva se sklop za pomicanje kamere. On se sastoji od bluetooth modula, kontrolera, dva servo motora i kamere. Ulaz u drugi sustav su podatci pristigli preko bluetooth veze izmeÄu dva sustava te se pomoÄu njih moduliraju dva signala koji upravljaju servo motorima i pomiÄu kameru u željenom smjeru
Context-Driven Method in Realization of Optimized Human-Robot Interaction
Perceptual uncertainty and environmental volatility are among the most enduring challenges in robotic research today. Contemporary robotic systems are usually designed to work in specific and controlled domains where a total number of variables is defined. Traditional solutions therefore often result in over-constrained interaction spaces or rigid system architectures where any unexpected change can result in system failure. The focus of this work is set on achieving a constant adaptation of the system to changes through interaction. A computational mechanism based on the entropy reduction method is integrated along with the three-component control model. This model is seen as a context-to-data interpreter used to provide context-aware reasoning to the technical system. The mechanism is using a decrease in interaction uncertainties when proofs are provided to the system. In this way, the robot can choose the right interaction strategy that resolves reasoning ambiguities most efficiently
A Step toward Machine Recognition of Complex Sentences
Abstract ā This paper presents theoretical and technological background of a model for machine recognition of complex sentences. It is based on the Syntactic and Semantic Framework (SSF) which implements fundamental linguistic fields network resources and encyclopedias. It can be used to extractsubject, predicate and object, as well as other sentence's parts (e.g. NP/VP/PP), and in some cases even semantic roles. In compo und sentences the machine can easily recognize independent sentences, whereas in complex sentences the machine recognizes the main clause and the related subordinate clauses as well as sentence types (subject, object, predicate, etc.). Using stored patterns various theories can be tested
Razine kortikosterona i biokemijskih pokazatelja u krvi Ŕtakora kao modela za streptozotocinski dijabetes: utjecaj omjera n3/n6 u hrani
The study was carried out to investigate the influence of dietary n6/n3 ratio in streptozotocin (STZ) induced diabetes on serum biochemistry and corticosterone values in blood in 15 Wistar male rats assigned into three experimental groups, two diabetic and a control group (STZ-N3, STZ-N6, CON) fed with different diets (n6/n3 ratio: ā 1, n6/n3 ratio: ā60, CON n6/n3 ratio: ā7). Significantly higher values of alkaline phosphatase (AP) and beta-hydroxybutyrate (BHB) and lower levels for triglyceride and albumin were noticed in both STZ treated groups compared to the control. The values for blood urea nitrogen (BUN) were increased in only the STZ-N3 group compared to the control (P<0.05). The values for the total bilirubin (P<0.05) and alanine aminotransferase (ALT) (P<0.05) were higher in only the STZ-N6 group compared to the control. In addition,the STZ-N3 group had lower albumin values compared to the STZ-N6 group (P < 0.001). Corticosterone values did not significantly differ among all three experimental groups indicating similar levels of stress. In conclusion, the n6/n3 ratio significantly influences blood biochemical parameters in STZ-treated rats. Nevertheless, neither the n6/n3 ratio nor blood sampling and handling influences corticosterone values, which proved the validity of the STZ-induced rodent model of diabetes mellitus in the experimental conditions described.Pokus je proveden kako bi se istražio utjecaj udjela n6/n3 u hrani na biokemijske pokazatelje i vrijednost kortikosterona u serumu Å”takora kojima je primjenom streptozotocina uzrokovan dijabetes. Istraživanjem je obuhvaÄeno 15 mužjaka Å”takora Wistar podijeljenih u tri skupine: dvije skupine dijabetiÄara i kontrolnu skupinu (STZ-N3, STZ-N6, CON). Svaka je skupina hranjena razliÄitim udjelom n3/n6: STZ-N3 udjelom n6/n3 ā 1, STZ-N6 udjelom n6/n3 ā 60, CON udjelom n6/n3 ā 7. U objema pokusnim skupinima utvrÄene su znakovito viÅ”e vrijednosti alkalne fosfataze (AP) i betahidroksimaslaÄne kiseline (BHB) te niže vrijednosti triglicerida i albumina u odnosu na kontrolnu skupinu. Vrijednosti glukoze (BUN) bile su poviÅ”ene samo u skupini STZ-N3 u odnosu na kontrolnu (P < 0,05). Vrijednosti ukupnog bilirubina (P < 0,05) i alanine-transferaze (ALT) (P<0,05) bile su viÅ”e samo u skupini STZ-N6 u odnosu na kontrolnu skupinu. Skupina STZ-N3 imala je nižu vrijednost albumina u odnosu na skupinu STZ-N6 (P < 0,001). Vrijednost kortikosterona nije se znakovito razlikovala meÄu skupinama posredno dokazujuÄi da meÄu njima postoji sliÄna razina stresa. ZakljuÄno, omjer n3/n6 u hrani utjecao je na odreÄene biokemijske pokazatelje u krvi Å”takora tretiranih streptozotocinom. No omjer n3/ n6, postupak uzorkovanja krvi i baratanje Å”takorima nisu utjecali na vrijednosti kortikosterona Äime je dokazana valjanost animalnog modela sa streptozotocinom uzrokovanom Å”eÄernom boleÅ”Äu u opisanim uvjetima pokusa
Utjecaj pariteta na koŔtanu alkalnu fosfatazu tijekom suhostaja u sanskih koza
There is still much vagueness about changes in bone metabolism during pregnancy and lactation in small ruminants. The purpose of this study was to assess changes in BALP activity during pregnancy and lactation, as well as the effect of parity on bone formation in goats. The research was conducted on 35 goats of Saanen breed which were divided into 3 groups based on the number of previous deliveries (primiparous, biparous and multiparous goats). Blood samples were obtained 15 days before and 15 days after delivery. Differences between the study groups were tested by Studentās t-test, and the correlation by Pearsonās Rank Order test. In primiparous goats BALP activity was significantly lower (P<0.001) 15 days after delivery compared to the activity measured 15 days before delivery. In biparous and multiparous goats there were no statistically significant differences in BALP activity pre- and post-delivery. There was also only a statistically significant difference in BALP activity between the primiparous group and bi- and multiparous groups of goats. There was a statistically significant negative correlation (r = -0.88; P<0.001) between BALP and age in all goats. Results demonstrated active bone formation in late pregnancy and early lactation, especially in primiparous goats, indicating an increased bone turnover during the transition period while parity did not have an impact on bone formation.Promjene u koÅ”tanom metabolizmu malih preživaÄa tijekom gravidnosti i laktacije nisu do kraja razjaÅ”njene i istražene. Cilj ovog istraživanja bio je procijeniti promjene u aktivnosti BALP-a tijekom gravidnosti i laktacije, te utjecaj pariteta na koÅ”tanu izgradnju koza. Istraživanje je provedeno na 35 koza sanske pasmine koje su bile podijeljene na 3 skupine, s obzirom na broj prethodnih jarenja (prvojarke, drugojarke i viÅ”ejarke). Uzorci krvi prikupljeni su 15 dana prije i 15 dana poslije jarenja. Razlike meÄu ispitivanim skupinama testirane su Studentovim t-testom, a korelacija Pearsonās Rank Order testom. U prvojarki aktivnost BALP-a bila je statistiÄki znaÄajno niska (P<0,001) 15 dana nakon jarenja u usporedbi sa aktivnosti mjerenom 15 dana prije jarenja. U drugojarki i viÅ”ejarki nije bilo statistiÄki znaÄajne razlike u aktivnosti BALP-a prije i poslije jarenja. Ustanovljena je statistiÄki znaÄajna negativna korelacija (r = -0,88; P<0,001) izmeÄu BALP-a i dobi u svih koza. Rezultati ukazuju na aktivnu koÅ”tanu izgradnju tijekom kasne gravidnosti i rane laktacije posebno u prvojarki, Å”to upuÄuje na poveÄanu koÅ”tanu pregradnju za vrijeme prelaznog perioda, dok paritet nije imao utjecaj na pregradnju kostiju
Dietary zeolite clinoptilolite supplementation influences chemical composition of milk and udder health in dairy cows
Cilj ovog istraživanja bio je ustanoviti utjecaj zeolita klinoptilolita (KPL) dodavanog u obroke mlijeÄnih krava na kemijski sastav mlijeka, broj somatskih stanica (BSS) i zdravlje vimena. Dvadeset krava HolÅ”tajn-frizijske pasmine u dobi od 3 do 5 godina, gravidnih tri mjeseca i držanih u maloj obiteljskoj farmi u okolici ÄurÄevca, Hrvatska, bile su ukljuÄene u ovo istraživanje. Krave su bile nasumiÄno razvrstane u dvije skupine, kontrolnu (n=10) i skupinu hranjenu s dodatkom KPL (n=10), i to svakodnevno sa 100 g zeolita u obroku za mlijeÄne krave. Prvo uzorkovanje mlijeka naÄinjeno je prije dodavanja KPL u hranu. JoÅ” su Äetiri uzorkovanja provedena kroz Äetiri mjeseca, do sedmog mjeseca gravidnosti, odnosno suhostaja. Uzorci mlijeka bili su analizirani s obzirom na kemijski sastav mlijeka (mlijeÄna mast, bjelanÄevine, laktoza, nemasna suha tvar i ureja), BSS i bakterioloÅ”kom pretragom. UoÄene razlike u sadržaju pojedinog pretraživanog sastojka mlijeka nisu se znaÄajno razlikovale, ni za pojedinaÄno uzorkovanje niti izmeÄu pokusnih skupina krava. MeÄutim, kemijski sastav mlijeka bio je mnogo stabilniji u krava kojima je dodavan KPL u hranu. Naime, statistiÄki znaÄajna
razlika izmeÄu pojedinaÄnih uzorkovanja u krava kojima je dodavan KPL bila je utvrÄena za sadržaj mlijeÄne masti i ureje. Å toviÅ”e, u mlijeku krava iz kontrolne skupine utvrÄene su znaÄajne razlike izmeÄu pojedinaÄnih uzorkovanja za sve pretražene sastojke mlijeka, s izuzetkom nemasne suhe tvari. Broj BSS u mlijeku krava iz obiju skupina nije se znaÄajno razlikovao. MeÄutim, krave iz kontrolne skupine imale su 21 puta veÄi rizik od pojave intramamarnih infekcija nego krave kojima je KPL dodavan u hranu. Ovakav povoljni ishod naÅ”ih istraživanja može se pripisati antibakterijskom, detoksikacijskom, antioksidativnom i imunostimulacijskom uÄinku KPL na metabolizam krava Å”to se oÄitovalo padom pojavnosti intramamarnih infekcija tijekom suhostaja, poroÄaja i rane laktacije. Ovaj ishod vjerojatno bi se mogao objasniti ublažavanjem stresnih stanja tijekom spomenutih razdoblja kada su krave najosjetljivije na metaboliÄke poremeÄaje i nepovoljne okoliÅ”ne uvijete koji rezultiraju u izraženijoj imunosupresiji i prijemljivosti za intramamarne infekcije.The aim of the current study was to establish the influence of dietary zeolite clinoptilolite (CPL) on the chemical composition of milk, somatic cell counts and udder health in dairy cows. Twenty cows of the Holstein-Frisian breed, aged between 3 and 5 years, which were pregnant for 3 months and kept in a small family farm in vicinity of ÄurÄevac, Croatia, were included in the trial. Cows were randomly assigned into two groups, control (n=10) and CPL-fed group (n=10). The CPL group received 100 g zeolite in the ratio for dairy cows on a daily basis. The first milk sampling was taken prior to adding
CPL to feed. The four consecutive samplings were performed on a monthly basis up to 7th month of pregnancy, i.e., the dry period. The milk samples were analysed for chemical composition (milk fat, proteins, lactose, non- fatty dry matter and urea), somatic cell counts and by bacteriological examination. Observed differences in the content of particular milk components tested did not differ significantly between groups in any of sampling points. However, the chemical composition of milk was found to be more stable in CPL-fed cows. Statistically significant differences were found for milk fat and urea contents between single samplings in CPL-fed cows. Moreover, in the control group, significant differences were found between single samplings for all milk components, except non-fatty dry matter. The number of SCC in milk between the groups did not differ significantly. However, the control cows had a 21-fold higher odd of intramammary infections than CPL-fed cows. This beneficial outcome of the study may be attributed to the antibacterial, detoxifying, antioxidative and immunostimulating effects of CPL on the metabolism of cows, as exhibited by a decreased incidence of intramammary infections during the dry period, parturition and early lactation. Such an outcome might be explained by the moderation of stressful events accompanying such periods, when cows are the most sensitive to metabolic imbalance and environmental detrimental effects, resulting in more pronounced immunosuppression and susceptibility to intramammary infections