Spectrophotometric Determination of Stability Constants of Lactato and B-Hydroxypropionato Complexes of Cobalt(ll), Nickel(II), and Copper(II)

Stability constants for lactato and B-hydroxypropionato complexes of Co(II), Ni(II), and Cu(II) were obtained from spectrophotometric data, using Bjerrum\u27s method of corresponding solutions. Measurements were made in the visible range and the results plotted for graphical evaluation by Fronaeus\u27 method. Graphically determined values for each stability constant were utilized for averaging and least-squares calculations with a digital computer programmed according to R. S. Tobias (»Gauss Z« program)

Spectrophotometric Determination of Stability Constants of Lactato and B-Hydroxypropionato Complexes of Cobalt(ll), Nickel(II), and Copper(II)

Stability constants for lactato and B-hydroxypropionato complexes of Co(II), Ni(II), and Cu(II) were obtained from spectrophotometric data, using Bjerrum\u27s method of corresponding solutions. Measurements were made in the visible range and the results plotted for graphical evaluation by Fronaeus\u27 method. Graphically determined values for each stability constant were utilized for averaging and least-squares calculations with a digital computer programmed according to R. S. Tobias (»Gauss Z« program)

Variability in ejaculation rate and libido of boars during reproductive exploitation

The main objective of the study was to evaluate variability in the ejaculation rate and libido of boars under various genetic and non-genetic influences. A total of 7171 semen samples were collected from Swedish Landrace, Large White and Duroc boars reared under commercial production conditions. Time spent in preparing or collecting, constituted the period from the entry of boars into the room for collecting semen to onset of ejaculation. Ejaculation rate was defined as the volume of sperm extracted (mL) per unit of time (min). The index of boar libido was defined as the relationship between productive (duration of ejaculation) and unproductive (time spent in preparing to collect/jump) periods. Average values of the interval between two collections, age of boar at collection, time spent in preparing for collection, duration of ejaculation, volume of ejaculate, rate of ejaculation and libido index were: 8.83 days, 551.2 days, 3.56 min, 6.06 min, 231.9 mL, 37.67 mL/min and 1.76, respectively. Ejaculate traits and libido varied according to breed, season and collector, with the exception of seasonal variability of duration of ejaculation. The regression effect of the interval between two collections of ejaculate and age of boar at collection was not statistically significant only for duration of preparing for collection. Unlike the ejaculation rate, during the summer and autumn periods, boars exhibited weaker libido than in winter and spring. Duroc boars were inferior to the fertile breeds (Swedish Landrace and Large White) in terms of shorter duration of ejaculation, lower volume, lowest rate of ejaculation and weakest libido. Variability of rate of ejaculation and of boar libido indicates the need to include these traits in breeding programmes and the possibility of improving these traits

Predicting phase transition pressure in solids: a semiclassical possibility

This is a short review of the physical ideas,algorithm for calculations and some results of a semiclassical theory of the behaviour of materials under high pressure,proposed by P.Savic and R.Kasanin.The theory has found applications from DAC experiments to studies of planetary interior structure.Comment: PDF file,no figure

Urban Horticulture and Its Modernization by Using LED Lightning in Indoors Vegetable Production

Urban horticulture also includes the production of vegetables, mostly leafy vegetables, in high tech protected areas with or without daylight. Vegetable crop growing is a scientific discipline that studies biology and technology in growing vegetable crops in either the open-field and greenhouse environment. The objective is to gain high-yield agricultural crops, good quality edible parts that are safe for human consumption and a minimal environmental pollution. Vegetables are annual, biannual or perennial herbaceous plants that rarely develop a woody stem during its vegetative period, mostly in the lower section of the stem. The vegetable edible parts are rich in water and are used either fresh and raw or processed. Once picked, the edible parts may be stored for a short period of time (several weeks, up to 9 months at the most). The vegetable edible parts are: roots and tubers, stems and stalks, sprouts, bulbs, leaves (cruciferous or headed vegetables), leaf stems, immature flower heads, fruits (mature or immature), and seed (mature or immature). Vegetables could be grown in urban areas, in protected areas with or without daylight. LED lightning represent one of the most important modernizations and implementation of vegetable production in urban areas

Understanding the efficient parallelisation of Cellular Automata on CPU and GPGPU hardware

Cellular automata, represented by a discrete set of elements are ideal candidates for parallelisation, particularly on graphics cards using GPGPU technology. This paper shows that the speedups of 50 times over CPU are possible but that the hardware is only partially responsible and the memory model is vital to exploiting the additional computational power of the GPU

A multicriteria approach for a phased design of water distribution networks

Published13th Computer Control for Water Industry Conference, CCWI 2015Water distribution networks are key infrastructure that provide essential water supply to communities. Planning water distribution networks involves many actors, including water companies, governments, environmentalists, consumers and financing institutions, and they tend to have conflicting perspectives. This work proposes a multi-criteria decision analysis (MCDA) as a useful tool for providing decision support in such circumstances. A phased planning horizon scheme is proposed that identifies the design for the first time interval while considering possible future conditions that the network might have to cope with. The results identify the best ranked phased design solutions.This paper is based on research conducted under the DESAFIO project (www.desafioglobal.org). DESAFIO is funded by the Seventh Framework Programme of the European Union for research, technological development and demonstration under grant agreement no. 320303. The information contained in this work reflects only the opinion of the authors and the European Union is not responsible for the use which may be made of the information contained therein