QUANTITATIVE AND QUALITATIVE EFFECTS OF TEMPERATURE AND TYPE OF GRAIN ON POPULATIONS OF SITOPHILUS (COLEOPTERA: CURCULIONIDAE) AND ON THEIR MYCETOMAL MICROORGANISMS

1963 ◽  
Vol 41 (7) ◽  
pp. 1245-1261 ◽  
Author(s):  
A. J. Musgrave ◽  
G. C. Ashton ◽  
R. Homan
Keyword(s):  
Productivity Index ◽  
White Rice ◽  
Rearing Temperature ◽  
Single Index ◽  
Statistical Interactions ◽  
Different Types ◽  
Different Temperatures ◽  
Effects Of Temperature ◽  
Set Up

Known numbers of parents of four described different types of Sitophilus weevils, normally reared on wheat at 27 °C, were used, in several experiments, to set up cultures on three kinds of grain at three different temperatures. The resulting progeny were counted and weighed. In an attempt to assess the quality of the populations a "productivity index" was devised as milligrams of progeny per milligram of parent. Many of the results were subjected to statistical analysis.Some of the findings indicated by the general biological observations made, and by the several statistical interactions manifested, were the following. Though the different types of weevils were differently affected by being reared on different kinds of grain, all types were adversely affected by being reared on white rice. The response of the different types of weevils to a rearing temperature of 31 °C varied with the kind of grain and type of weevil, and, in one type, was associated with loss of mycetomal microorganisms. In contrast, a type of weevil (MW) normally free of mycetomal microorganisms at 27 °C was less affected adversely by being reared at 31 °C than the corresponding type (GG) normally harboring them. It is suggested that, in precise work with these weevils, investigators should determine with which strain they are working. Cause and effect are discussed. It is suggested that no single index can adequately express simultaneously both the quality and quantity of a population.

The Study on the Drying Characteristic of Chinese Chestnut

2013 ◽  
Vol 781-784 ◽  
pp. 1474-1478
Author(s):  
Xue Yin Yang
Keyword(s):  
Theoretical Basis ◽  
Influence Factors ◽  
Mathematics Model ◽  
Technical Parameter ◽  
Deep Processing ◽  
Drying Characteristics ◽  
Different Temperatures ◽  
Drying Curves ◽  
Set Up

Chestnuts drying characteristics directly affect chestnut storage and drying the product quality, the study on the drying characteristics of chestnut chestnut can provide theoretical basis and technical parameter for storage, shelling and deep processing. When at different temperatures drying, analysis color and quality of chestnut, draw safe drying curves and different temperature drying curves, set up the the mathematics model of the moisture content and other the influence factors.

scholarly journals Volatile Compounds, Phenolics and Microstructure of Aloe Vera Peel Powder Cells with Maltodextrin as their Capsules and Variations in Drying Temperature

2021 ◽  
Vol 9 (1) ◽  
pp. 320-328
Author(s):  
Narsih Narsih ◽  
Agato Agato
Keyword(s):  
Caffeic Acid ◽  
Aloe Vera ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Coumaric Acid ◽  
Different Types ◽  
Different Temperatures ◽  
Peel Extract ◽  
Acid Compound

The purpose of this study was to determine the quantity and quality of active compounds in aloe vera peel powder which was dried by foam mat drying method at a temperature of 60, 70, and 80°C for 6 hours. Aloe vera peel powder in this study came from aloe vera peel extract added with maltodextrin as a filler. The results of the study concluded that the volatile components by gas chromatography-mass spectrometry (GC-MS) at each temperature have different types of compounds. Consecutively with drying temperatures of 60, 70, and 80°C detected as 21, 19, and 19 types of compounds, but there are 3 similar dominant compounds, namely menthone, 1-anthrol and anthranol. Analysis using HPLC produce 9 compounds different temperatures, but only 3 that had similarities, namely pyrogallol, β-Coumaric acid, and caffeic acid. Pyrogallol compounds in aloe vera peel powder dried at 60, 70, and 80° C were 513.44, 464.12, 606.76 μg / g respectively. The β-Coumaric acid that has been produced from drying temperatures 60, 70, and 80° C is 605.43, 547.33, and 715.37 μg / g respectively and the caffeic acid compound was resulting from drying temperatures 60, 70, and 80° C is 734.4, 664.00 and 867.85 μg / g. Microstructure analysis was only carried out on powder which is dried at 60oC, there are fine bubbles on the surface of the powder, this concludes that the powder has good solubility as one of the requirements of powdered products.

PROTEOMIC ANALYSIS OF RICE SEED STORAGE PROTEINS IN RELATION TO NUTRIENT QUALITY OF THREE DIFFERENT COMMERCIAL RICE TYPES

2015 ◽  
Vol 77 (24) ◽  
Author(s):  
Nur Syazila Ramli ◽  
Noor Hasniza Md. Zin
Keyword(s):  
Nutritional Value ◽  
Storage Proteins ◽  
Brown Rice ◽  
Seed Storage ◽  
Seed Storage Proteins ◽  
Nutrient Quality ◽  
White Rice ◽  
Glutinous Rice ◽  
Different Types

Seed storage proteins (SSPs) are the most important component in rice, which provides nutrient to consumers. The SSPs content and composition are among the important determinant for rice quality determination specifically for nutritional value. Multiple factors have been identified to give effect to the nutritional value of rice grain including different types of rice. The purpose of this study is to investigate the expression level of SSPs of rice and also relates the nutrient quality of rice with the variability in SSPs expression from three different types of rice commercially available in markets. The SSPs were extracted from three different types of rice; white rice, brown rice and glutinous rice of the local rice brands in markets. Bradford Assay was carried out to determine the total SSPs content and brown rice was found to have significantly higher total SSPs content (9.157± 0.4 mg/100mg seeds) compared to white rice (6.933± 0.8 mg/ 100mg seeds) and glutinous rice (5.388± 0.2 mg/ 100mg seeds). Based on the banding patterns of the SDS-PAGE, there were different level of expressions were observed between the three rice types. The different expression can be observed obviously at the glutelin precursor region and glutelin acidic subunit region and prolamin polypeptides region for each type of rice. Therefore, contribute to the different nutritional value for dietary intake.

scholarly journals Understanding the Washing Damage to Textile ECG Dry Skin Electrodes, Embroidered and Fabric-Based; set up of Equivalent Laboratory Tests

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1272
Author(s):  
Shahood uz Zaman ◽  
Xuyuan Tao ◽  
Cédric Cochrane ◽  
Vladan Koncar
Keyword(s):  
Textile Industry ◽  
Test Methods ◽  
Sem Analysis ◽  
Key Factors ◽  
Severe Damage ◽  
Dry Skin ◽  
Chemical Test ◽  
Different Types ◽  
Set Up

Reliability and washability are major hurdles facing the e-textile industry nowadays. The main fear behind the product’s rejection is the inability to ensure its projected life span. The durability of e-textiles is based on an approximate lifetime of both the electronics and textiles integrated into the product. A detailed analysis of the wash process and the possibility of predicting product behavior are key factors for new standards implementation. This manuscript is focused on the washability issues of different types of woven, knitted, and embroidered, textile-based ECG electrodes. These electrodes are used without the addition of any ionic gel to the skin to reduce impedance. They were subjected to up to 50 wash cycles with two different types of wash processes, and changes in surface resistance, as well as the quality of ECG waves, were observed To investigate the wash damages in detail, the proposed mechanical (Martindale and Pilling box) and chemical test methods were investigated. The electrodes which increased resistance after washing showed the same trend in the proposed test methods. Copper-based electrodes suffered the most severe damage and increased resistance, as was also visible in an SEM analysis. These proposed test methods can be used to predict robustness behavior without washing.

Effect of Firing Temperature on Reactivity and Sedimentation Volume of Different Types of Limestones

2017 ◽  
Vol 908 ◽  
pp. 45-50
Author(s):  
Dušan Dolák ◽  
Karel Dvořák ◽  
Jaroslav Bureš
Keyword(s):  
Firing Temperature ◽  
Building Industry ◽  
Petrographic Composition ◽  
Natural Rock ◽  
Different Types ◽  
Different Temperatures ◽  
Sedimentation Volume ◽  
Selection Of ◽  
Specific Particle

Limestone as a natural rock tends to have various parameters. Variation in parameters, as well as firing temperature have significant impact on key properties of quicklime. Sedimentation volume and reactivity determine quality of quicklime in building industry. This paper is focused on monitoring the reactivity and sedimentation volume of quicklime prepared from various types of limestone at different temperatures. Selection of limestones with high purity collected from various quarries around the world were characterized by porosity, chemical and petrographic composition. To create quicklime, these samples were fired at 4 different temperatures. Reactivity measurements were made on quicklime with specific particle size. Sedimentation volume of hydrated slurry was determined. Obtained results suggest that there is tendency for slower reactivity and smaller sedimentation volume with increased firing temperature.

STUDY OF INACCURACY IN THE OPERATION OF THE MAIN CONTROLLER OF STB MACHINE

2019 ◽  
Keyword(s):  
Normal Distribution ◽  
Stable Process ◽  
Random Errors ◽  
Actual Length ◽  
Experimental Data Processing ◽  
Set Up ◽  
Main Regulator ◽  
Transmission Gear ◽  
Selection Of

At production of fabrics, including fabrics for agricultural purpose, an important role is played by the cor-rect adjustment of operation of machine main regulator. The quality of setup of machine main controller is determined by the proper selection of rotation angle of warp beam weaving per one filling thread. In the pro-cess of using the regulator as a result of mistakes in adjustment, wear of transmission gear and backlashes in connections of details there are random changes in threads length. The purpose of the article is the research of property of random errors of basis giving by STB machine regulator. Mistakes can be both negative, and positive. In case of emergence only negative or only positive mistakes operation of the machine becomes im-possible as there will be a consecutive accumulation of mistakes. As a result of experimental data processing for stable process of weaving and the invariable diameter of basis threads winding of threads it is revealed that the random error of giving is set up as linear function of the accidental length having normal distribution. Measurements of accidental deviations in giving of a basis by the main regulator allowed to construct a curve of normal distribution of its actual length for one pass of weft thread. The presented curve of distribution of random errors in giving of a basis is the displaced curve of normal distribution of the accidental sizes. Also we define the density of probability of normal distribution of basis giving errors connected with a margin er-ror operation of the main regulator knowing of which allows to plan ways of their decrease that is important for improvement of quality of the produced fabrics.

The Rotterdam Initiative in Reducing Waste Discharges at Source

1991 ◽  
Vol 24 (10) ◽  
pp. 171-177
Author(s):  
T. Vellinga ◽  
J. P. J. Nijssen
Keyword(s):  
Public Relations ◽  
Action Plan ◽  
Detailed Balance ◽  
River Rhine ◽  
The North ◽  
Complementary Role ◽  
Action Programme ◽  
The North Sea ◽  
Set Up

Much of the material dredged from the port of Rotterdam is contaminated to such a degree that it must be placed in specially constructed sites. The aim of Rotterdam is to ensure that the dredged material will once again be clean. This will entail the thorough cleansing of the sources of the contamination of the sediment in the harbours and in the River Rhine. The Rotterdam Rhine Research Project (RRP) is one of the means to achieve this based on: technical research, legal research, public relations and dialogues with dischargers. The programme for five selected heavy metals is almost complete. For many heavy metal discharge points between Rotterdam and Rheinfelden, a specially devised independent load assessment has been carried out four times. Balance studies were used to determine the relative contributions of the point discharges to the total. Currently the results are being used in an attempt to negotiate agreements with a selected number of the major dischargers. At present, more detailed balance studies are being set up and exploratory measurements carried out for organic micropollutants. It may be concluded that the research is progressing successfully and methods and techniques developed seem satisfactory and broadly applicable. The Rhine Action Programme encompasses an international effort to improve the quality of the Rhine water. Although the RRP plays a modest complementary role to the Rhine Action Plan, there is no doubt of the value of this Rotterdam initiative. The mode of work followed in the RRP contains elements that can be of use in combatting the contamination of the North Sea by rivers other than the Rhine.

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