6 research outputs found
Discrimination of mineral waters using near-infrared spectroscopy and aquaphotomics
Voda je jedan od najÄeÅ”Äe prouÄavanih materijala danas, ali uprkos tome mnoga njena svojstva i dalje ostaju nerazjaÅ”njena i neiskoriÅ”Äena. Voda je neophodna za normalno funkcionisanje ljudskog organizma, izmeÄu ostalog zbog toga, poremeÄaji homeostaze vode u ljudskom telu leže u osnovi mnogih bolesti. Analiza vode i njene ispravnosti za upotrebu u ljudskoj ishrani uglavnom se bavi onim Å”to je prisutno u vodi - koncentracijama prisutnih anjona i katjona, prisustvu mikroorganizama i tome sliÄno. RazliÄite vrste voda se uglavnom i klasifikuju upravo prema vrsti elemenata koje sadrže, koncentraciji prisutnih elemenata, ili pak odnosu izmeÄu koncentracije pojedinih jona i njihov efekat na ljudski organizam razmatra se iskljuÄivo sa stanoviÅ”ta elemenata koji su prisutni u njoj. MeÄutim, iako je poznato da voda formira razliÄite tipove klastera i može da se organizuje oko prisutnih elemenata na razliÄite naÄine, klasifikacija voda na osnovu organizacije vodenih molekula, kao i efekti razliÄito klasterizovanih voda na ljudski organizam, za sada ne postoje u literaturi. Predmet ovog rada je diskriminacija razliÄitih tipova voda na osnovu njihovog spektra u bliskoj infracrvenoj oblasti, primenom multivarijacione analize i novog pristupa za tumaÄenje spektara vode u ovoj oblasti, poznatog pod nazivom Akvafotomika. Akvafotomika interpretira spektar vode u bliskoj infracrvenoj oblasti preko posebno definisanih koordinata vodene mreže (water matrix coordinates - WAMACS) kojima su pripisani taÄno odreÄeni vibracioni modovi molekula vode preko kojih se može zakljuÄiti kako se molekuli vode organizuju. Na taj naÄin, primenom saznanja akvafotomike, voda se može opisati i sa aspekta njene organizacije u klastere, i time se omoguÄiti i diskriminacija voda na osnovu prisutnih tipova klastera Å”to je prikazano u ovom radu.Despite that water is one of the most studied materials today its dynamic properties are still not well understood. Water state in human organism is of high importance for normal healthy functioning of human body. Different kinds of water are usually classified according to their present solutes and concentrations of these solutes, but though it is known that water molecules can form clusters around present solutes, the classification of waters based on types of water molecular organization and present clusters is not present in current literature. In this study the multivariate analysis is used for classification of commercial mineral waters based on their near-infrared spectra (NIR). Further, the aquaphotomics has been applied, a new approach for interpretation of near-infrared spectra of water, that gives insight into organization of water molecules in each of these waters
Discrimination of mineral waters using near-infrared spectroscopy and aquaphotomics
Voda je jedan od najÄeÅ”Äe prouÄavanih materijala danas, ali uprkos tome mnoga njena svojstva i dalje ostaju nerazjaÅ”njena i neiskoriÅ”Äena. Voda je neophodna za normalno funkcionisanje ljudskog organizma, izmeÄu ostalog zbog toga, poremeÄaji homeostaze vode u ljudskom telu leže u osnovi mnogih bolesti. Analiza vode i njene ispravnosti za upotrebu u ljudskoj ishrani uglavnom se bavi onim Å”to je prisutno u vodi - koncentracijama prisutnih anjona i katjona, prisustvu mikroorganizama i tome sliÄno. RazliÄite vrste voda se uglavnom i klasifikuju upravo prema vrsti elemenata koje sadrže, koncentraciji prisutnih elemenata, ili pak odnosu izmeÄu koncentracije pojedinih jona i njihov efekat na ljudski organizam razmatra se iskljuÄivo sa stanoviÅ”ta elemenata koji su prisutni u njoj. MeÄutim, iako je poznato da voda formira razliÄite tipove klastera i može da se organizuje oko prisutnih elemenata na razliÄite naÄine, klasifikacija voda na osnovu organizacije vodenih molekula, kao i efekti razliÄito klasterizovanih voda na ljudski organizam, za sada ne postoje u literaturi. Predmet ovog rada je diskriminacija razliÄitih tipova voda na osnovu njihovog spektra u bliskoj infracrvenoj oblasti, primenom multivarijacione analize i novog pristupa za tumaÄenje spektara vode u ovoj oblasti, poznatog pod nazivom Akvafotomika. Akvafotomika interpretira spektar vode u bliskoj infracrvenoj oblasti preko posebno definisanih koordinata vodene mreže (water matrix coordinates - WAMACS) kojima su pripisani taÄno odreÄeni vibracioni modovi molekula vode preko kojih se može zakljuÄiti kako se molekuli vode organizuju. Na taj naÄin, primenom saznanja akvafotomike, voda se može opisati i sa aspekta njene organizacije u klastere, i time se omoguÄiti i diskriminacija voda na osnovu prisutnih tipova klastera Å”to je prikazano u ovom radu.Despite that water is one of the most studied materials today its dynamic properties are still not well understood. Water state in human organism is of high importance for normal healthy functioning of human body. Different kinds of water are usually classified according to their present solutes and concentrations of these solutes, but though it is known that water molecules can form clusters around present solutes, the classification of waters based on types of water molecular organization and present clusters is not present in current literature. In this study the multivariate analysis is used for classification of commercial mineral waters based on their near-infrared spectra (NIR). Further, the aquaphotomics has been applied, a new approach for interpretation of near-infrared spectra of water, that gives insight into organization of water molecules in each of these waters
Nanoscale material characterization under the influence of aggressive agents by magnetic force microscopy and opto-magnetic spectroscopy
Magnetic Force Microscopy (MFM) and Opto-Magnetic Spectroscopy (OMS) were used to characterize HTCV stainless steel and aluminum. Both materials were immersed in 1.0M HCl and 1.0M CH3COOH solutions for two hours. From the OMS method it was discovered that treated materials showed differences in peak wavelengths. Topographical and magnetic features for steel plate samples showed better resistance to an aggressive medium compared to aluminum. The results and analysis of these investigations are compared and presented in this paper
Discrimination of mineral waters using near infrared spectroscopy and aquaphotomics
Despite that water is one of the most studied materials today its dynamic
properties are still not well understood. Water state in human organism is of
high importance for normal healthy functioning of human body. Different kinds
of water are usually classified according to its present solutes, and
concentrations of these solutes, but though it is known that water molecules
can form clusters around present solutes, classification of waters based on
types of water molecular organization and present clusters is not present in
current literature. In this study we used multivariate analysis for
classification of commercial mineral waters based on their near infrared
spectra (NIR). Further, we applied Aquaphotomics, a new approach for
interpretation of near infrared spectra of water, which gives insight into
organization of water molecules in each of these waters
Nanoscale Material Characterization under the Influence of Aggressive Agents by Magnetic Force Microscopy and Opto-Magnetic Spectroscopy
Magnetic Force Microscopy (MFM) and Opto-Magnetic Spectroscopy (OMS) were used to characterize HTCV stainless steel and aluminum. Both materials were immersed in 1.0M HCl and 1.0M CH3COOH solutions for two hours. From the OMS method it was discovered that treated materials showed differences in peak wavelengths. Topographical and magnetic features for steel plate samples showed better resistance to an aggressive medium compared to aluminum. The results and analysis of these investigations are compared and presented in this paper
Thermal management evaluation of the complex electro-optical system
The thermal management of a complex electro-optical system aimed for outdoor application is challenging task due to the requirement of having an air-sealed enclosure, harsh working environment, and an additional thermal load generated by sunlight. It is essential to consider the effect of heating loads in the system components, as well as the internal temperature distribution, that can have influence on the system life expectancy, operational readiness and parameters, and possibility for catastrophic failure. The main objective of this paper is to analyze internal temperature distribution and evaluate its influence on system component operation capability. The electro-optical system simplified model was defined and related thermal balance simulation model based on Solid Works thermal analysis module was set and applied for temperature distribution calculation. Various outdoor environment scenarios were compared to evaluate system temperature distribution and evaluate its influence on system operation, reliability, and life time in application environment. This work was done during the design process as a part of the electro-optical system optimization. The results show that temperature distribution will not be cause for catastrophic failure and malfunction operation during operation in the expected environment