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Polyethylene and Polypropylene are so-called Polyolefins. They are produced in large amounts every year. Depending on the process and catalyst used linear or branched polymers can be produced. In case of e. g. Polyethylene there are at least three polymer types: HDPE (High Density Polytheylene), LDP more
The light in the high-radiance wavelength region of the solar spectrum is not utilized effectively by silicon crystal-based solar cell modules. "Fluorescent materials" convert the ultraviolet component in the sunlight into light in the longer wavelength region where this solar cell modules can gener more
Antioxidants are able to neutralize Reactive Oxygen Species Antioxidant capacity of fruit juices determined with the ORAC assay in 96 and 384-well format MARS data analysis software with predefined templates for quick ORAC evaluation Introduction In all oxygen consuming cells, metabolism and oxid more
The light in the high-radiance wavelength region of the solar spectrum is not utilized effectively by silicon crystal-based solar cell modules. "Fluorescent materials" convert the ultraviolet component in the sunlight into light in the longer wavelength region where this solar cell modules can gener more
Antioxidants are able to neutralize Reactive Oxygen Species Antioxidant capacity of fruit juices determined with the ORAC assay in 96 and 384-well format MARS data analysis software with predefined templates for quick ORAC evaluation Introduction In all oxygen consuming cells, metabolism and oxid more
The AF4-MALS combined technique can serve as a routine method for polymer analysis and characterization. AF4 provides separation efficiency entirely comparable with traditionally used and so far dominating SEC. In addition, it yields superior separation of branched polymers, polymers containing ultr more
Innovative drugs are the lifeblood of pharmaceutical companies, but the cost of developing them is rising to unsustainable levels. Pharma executives are already saying that as the economy falters, they foresee bleak prospects and mergers unless their companies get more innovative drugs into their pi more
Researchers don’t want to work with a LIMS and analysts don’t like electronic laboratory notebooks (ELN). These types of software are not ideally suited to mapping these two laboratory processes. In companies with R&D and analysis departments, there is an intensive data exchange between the departme more
INTRODUCTION From the late 1980s commercial Dynamic Light Scattering (DLS) detectors started being used in commercial biophysical laboratories throughout the world. These instruments enabled size measurements of small volumes of proteins and other biomaterials in solution to be made, with small sam more
For the generation of soft water are mostly used ion exchanging devices with generation of sodium chloride since the beginning of the Sixties. The generated soft water quality and soft water quantity are depending thereby on the static and dynamic characteristics of the softening plant in operation. more
There is a paradoxical consequence of the financial crisis: To produce bitumen is more attractive than ever. In the last six months prices for crude oil and, in particular, the consumption of heavy, sulfur-containing marine Diesel fuel (bunker oils) have dropped, while at the same time the need for more
Ever since scientists work with proteins, polymers and particles, there has been an enormous demand to know their molar mass and physical size without making a priori assumptions about these molecules. This is because their properties can depend both on their size and chemical composition. The range more
INTRODUCTION From the late 1980s commercial Dynamic Light Scattering (DLS) detectors started being used in commercial biophysical laboratories throughout the world. These instruments enabled size measurements of small volumes of proteins and other biomaterials in solution to be made, with small sam more
When determining particle sizes a wide variety of techniques are used in which sieving may be the most popular. Sieving is a relatively simple technique, despite the fact that of course different instrumental approaches can be used. The main advantages of sieving are the low price of the instrumenta more
Colloid emulsions in their native environment require particle size determination in high concentration since there are concerns about changes in sample morphology upon dilution eg break up of aggregates. For proteins and other samples with very low concentration and for weakly scattering samples hi more
In many analytical laboratories today microwave digestion is a standard method of preparing samples for determining elements. #img4536# For microwave digestion the sample material is typically heated to 200 – 260°C in closed microwave-transparent pressure vessels with an acid mixture and thereby ful more
There is a paradoxical consequence of the financial crisis: To produce bitumen is more attractive than ever. In the last six months prices for crude oil and, in particular, the consumption of heavy, sulfur-containing marine Diesel fuel (bunker oils) have dropped, while at the same time the need for more
Air and bubbles, or fluid aeration and cavitation, can cause numerous problems in a hydraulic and lubrication oil system. Lubrication practitioners should be attentive to abnormal noise, poor component response due to spongy behavior of aerated fluids and high fluid temperature as signs of poor lub more
Antioxidants are able to neutralize Reactive Oxygen Species Antioxidant capacity of fruit juices determined with the ORAC assay in 96 and 384-well format MARS data analysis software with predefined templates for quick ORAC evaluation Introduction In all oxygen consuming cells, metabolism and oxid more
INTRODUCTION From the late 1980s commercial Dynamic Light Scattering (DLS) detectors started being used in commercial biophysical laboratories throughout the world. These instruments enabled size measurements of small volumes of proteins and other biomaterials in solution to be made, with small sam more
Ever since scientists work with proteins, polymers and particles, there has been an enormous demand to know their molar mass and physical size without making a priori assumptions about these molecules. This is because their properties can depend both on their size and chemical composition. The range more
For the generation of soft water are mostly used ion exchanging devices with generation of sodium chloride since the beginning of the Sixties. The generated soft water quality and soft water quantity are depending thereby on the static and dynamic characteristics of the softening plant in operation. more
Researchers don’t want to work with a LIMS and analysts don’t like electronic laboratory notebooks (ELN). These types of software are not ideally suited to mapping these two laboratory processes. In companies with R&D and analysis departments, there is an intensive data exchange between the departme more
#img4589#Geologists analyze soil samples, the oil industry studies crude oil, and the steel industry wants to know the composition of slag. These are completely different fields, but all begin the analysis process with a high-temperature fusion treatment of the samples. But what equipment should be more
Polyethylene and Polypropylene are so-called Polyolefins. They are produced in large amounts every year. Depending on the process and catalyst used linear or branched polymers can be produced. In case of e. g. Polyethylene there are at least three polymer types: HDPE (High Density Polytheylene), LDP more
In many analytical laboratories today microwave digestion is a standard method of preparing samples for determining elements. #img4536# For microwave digestion the sample material is typically heated to 200 – 260°C in closed microwave-transparent pressure vessels with an acid mixture and thereby ful more
There is a paradoxical consequence of the financial crisis: To produce bitumen is more attractive than ever. In the last six months prices for crude oil and, in particular, the consumption of heavy, sulfur-containing marine Diesel fuel (bunker oils) have dropped, while at the same time the need for more
For the generation of soft water are mostly used ion exchanging devices with generation of sodium chloride since the beginning of the Sixties. The generated soft water quality and soft water quantity are depending thereby on the static and dynamic characteristics of the softening plant in operation. more
Abstract Polyether-modified silicones have a long history of use in the personal care industry as emulsifiers and dispersants, as well as stabilizers for water-in-oil systems. However, because of their external phase type, water-in-oil systems tend to display poor aesthetics, such as greasiness, tac more
Rolling-element bearings are used for the precise guidance of moving parts. Frictional losses are extremely small because the bearings rest on rolling elements, enabling very heavy loads to be adsorbed. Rolling-element bearings may be lubricated with greases or oils depending on the point of use. Lu more
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