Spectral Probability Distribution of Closed Connected Water and Remote Sensing Statistical Inference for Yellow Substance

Unlike traditional remote sensing inversion, this study proposes a new distribution–distribution scheme, which uses statistical inferences to estimate the probability distribution of in-water components based on the probability distribution of the observed spectra. The distribution–distribution scheme has the advantages that it rapidly gives the statistical information of the water of interest, assists the traditional scheme in improving models, and provides more valuable information for water classification and aquatic environment analysis. In this study, based on Landsat-8 images, we analyzed the spectral probability distributions of 688 global waters and found that many of them were normal, log normal, and exponential distributions with diverse patterns in distribution parameters such as the mean, standard deviation, skewness, and kurtosis. Using simulated and field-measured data, we propose a bootstrap-based distribution–distribution scheme and develop some simple remote sensing statistical inference models to estimate the distribution parameters of yellow substance in water.

Application of Satellite Data for Retrieving the Light Absorption Characteristics in the Black Sea Waters

Purpose. he work is aimed at studying the effects of light absorption in the Black Sea waters with due regard for the variations of its individual components, and how they are manifested in the NASA archival results of calculating the chlorophyll a concentration obtained by processing satellite data using the universal operational method. Methods and Results. The NASA archival data of the MODIS and SeaWiFS satellite instruments, and the values of the light absorption components (determined by the method of Generalized ocean color inversion model for retrieving marine inherent optical properties (GIOP)) related to yellow substance and phytoplankton were analyzed. In order to avoid possible manifestations of various distortions in the results of determining the remote sensing reflectance of the sea and in the products resulted from application of the GIOP method, only the specially selected and sufficiently reliable test data from two areas located near the Crimea Southern Coast and south of the Danube estuary were used. Conclusions. In the considered examples with low content of chlorophyll a in the seawater, the yellow substance plays a predominant role in light absorption in the spectrum blue part, whereas if the chlorophyll a content is high, the phytoplankton contribution is dominant. The revealed relationship between the light absorption components related to yellow substance and phytoplankton significantly differs from that implicitly preset as a basis of the universal method (applied in NASA for the satellite data operational processing) for determining the chlorophyll a concentration. This, in its turn, is manifested in the fact that the data on the chlorophyll a concentration in the Black Sea stored in the NASA archive may be overestimated in case the chlorophyll a concentration is low, and underestimated – in case it is high.

Application of Satellite Data for Retrieving the Light Absorption Characteristics in the Black Sea Waters

Purpose. The work is aimed at studying the effects of light absorption in the Black Sea waters with due regard for the variations of its individual components, and how they are manifested in the NASA archival results of calculating the chlorophyll a concentration obtained by processing satellite data using the universal operational method. Methods and Results. The NASA archival data of the MODIS and SeaWiFS satellite instruments, and the values of the light absorption components (determined by the method of Generalized ocean color inversion model for retrieving marine inherent optical properties (GIOP)) related to yellow substance and phytoplankton were analyzed. In order to avoid possible manifestations of various distortions in the results of determining the remote sensing reflectances of the sea and in the products resulted from application of the GIOP method, only the specially selected and sufficiently reliable test data from two areas located near the Crimea Southern Coast and south of the Danube estuary were used. Conclusions. In the considered examples with low content of chlorophyll a in the seawater, the yellow substance plays a predominant role in light absorption in the spectrum blue part, whereas if the chlorophyll a content is high, the phytoplankton contribution is dominant. The revealed relationship between the light absorption components related to yellow substance and phytoplankton significantly differs from that implicitly preset as a basis of the universal method (applied in NASA for the satellite data operational processing) for determining the chlorophyll a concentration. This, in its turn, is manifested in the fact that the data on the chlorophyll a concentration in the Black Sea stored in the NASA archive may be overestimated in case the chlorophyll a concentration is low, and underestimated – in case it is high.

Optical characteristics of water at the mouth of the Ob River

As a result of the field studies (August 25 September 1, 2020), new data were obtained on the optical characteristics of water at the Ob River mouth near the Salemal village (Yamal region, Yamal-Nenets Autonomous Okrug) during the lowest water level and the maximum development of hydrobiocenoses. We calculated the light attenuation coefficient ( ) in the spectral range from 400 to 800 nm, which varied from 1.5 to 21.5 m 1 during the study period, and the light absorption by yellow substance ys( ) from 0.1 to 12.2 m 1. Concentrations of yellow substance Cys and chlorophyll Chl were determined. For instance, chlorophyll concentrations in water samples taken at different stations of the Ob River ranged from 12.5 to 22.7 mg m 3. The maximum content of chlorophyll in our case was recorded at a depth of 14 m (station 5.3), which was 22.7 mg m 3. The yellow substance concentration determined optically by the calculated yellow substance light absorption coefficient at wavelength =450 nm ranged within 18.8 and 26.9 g m 3 with an average value of 22.1 g m 3. The average value of ys( ) at =450 nm over the study period was 4.7 m 1.

Formulasi dan uji stabilitas sediaan lulur dari rimpang kunyit (Curcuma longa linn)

ABSTRACT Lulur is a type of cosmetics made from flowers and other plant ingredients that are very useful for maintaining beauty, health, smoothness and brightness of the skin of the body. Lulur can help clean the dirt that sticks to the skin due to the influence of weather and pollution factors so that the skin becomes healthy, clean and beautiful. The contents of the substance include turmeric: curcuminoid which consists of curcumin, desmetoksikumin and bisdesmetoksikurkumin and other beneficial substances, such as volatile essential oils of oil, fat, carbohydrates, protein, starch, vitamin C, iron, phosphorus, and calcium. Curcumin is a yellow substance contained by turmeric, on average 10.29%, has broad spectrum biological activity including antihepototoxic, antibacterial and antioxidant so that turmeric is able to be used for traditional medicine both to maintain health and skin beauty of the body, The method used is study experimental scrubs and tested the stability of scrubs containing turmeric rhizome powder. The best scrubs are formula 1 which uses the ratio of turmeric powder to light brown scrub, homogeneous and perfectly fused body scrub, has a pH of 5, spread of 10,321 cm2, has a viscosity consistency of 99,000 mPa.s and adhesion for 4 seconds. Keywords: formulations, scrubs, turmeric.

FORMULASI SEDIAAN LULUR PENCERAH DAN PENGHALUS KULIT DARI KUNYIT (CURCUMA LONGA LINN)

ABSTRACT Lulur is a type of cosmetics made from flowers and other plant ingredients that are very useful for maintaining beauty, health, smoothness and brightness of the skin of the body. Scrub can help clean the dirt that sticks to the skin due to the influence of weather factors and pollution so that the skin becomes healthy, clean and beautiful. Dry skin types often tend to be more problematic than other skin types. Dry skin is caused by insufficient oil produced by the kelenjer oil, which makes the skin not moist and dry. This can cause skin problems such as: skin looks rough, wrinkled and dull. The contents of the substance include turmeric: curcuminoid which consists of curcumin, desmetoksikumin and bisdesmetoksikurkumin and other beneficial substances, such as volatile essential oils of oil, fat, carbohydrates, protein, starch, vitamin C, iron, phosphorus, and calcium. Curcumin is a yellow substance contained by turmeric, on average 10.29%, has broad spectrum biological activity including antihepototoxic, antibacterial and antioxidant so that turmeric is able to be used for traditional medicine both maintaining health and beauty of the body's skin, the method used to carry out this research is an experiment. The object in this study is the skin of the body found on dry skin in the hands. The sample in this study the author took the students of the University of Harapan Bangsa Purwokerto Pharmacy Department especially women aged 19-25 years, have the same characteristics / criteria that indicated dull, rough and not bright skin. Keywords: formulation, scrub, turmeric, lightening.