Measurement of the Number Servings of Milk and Control of Water Content in Milk on Stall Milking Machines

2016 ◽  
pp. 435-447 ◽  
Author(s):  
Volodymyr Kucheruk ◽  
Pavel Kulakov ◽  
Natalia Storozhuk
Keyword(s):  
Water Content ◽  
And Control

scholarly journals Automated Measurement and Control of Germination Paper Water Content

Sensors ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 2232
Author(s):  
Lina Owino ◽  
Marvin Hilkens ◽  
Friederike Kögler ◽  
Dirk Söffker
Keyword(s):  
Water Content ◽  
Water Deficit ◽  
Plant Development ◽  
Growth Substrate ◽  
Irrigation Amount ◽  
Control Approach ◽  
Predictive Controller ◽  
And Control ◽  
Improved Accuracy ◽  
Measurement And Control

Germination paper (GP) is used as a growth substrate in plant development studies. Current studies bear two limitations: (1) The actual GP water content and variations in GP water content are neglected. (2) Existing irrigation methods either maintain the GP water content at fully sufficient or at a constant deficit. Variation of the intensity of water deficit over time for plants grown on GP is not directly achievable using these methods. In this contribution, a new measurement and control approach was presented. As a first step, a more precise measurement of water content was realized by employing the discharging process of capacitors to determine the electrical resistance of GP, which is related to the water content. A Kalman filter using an evapotranspiration model in combination with experimental data was used to refine the measurements, serving as the input for a model predictive controller (MPC). The MPC was used to improve the dynamics of the irrigation amount to more precisely achieve the required water content for regulated water uptake in plant studies. This is important in studies involving deficit irrigation. The novel method described was capable of increasing the accuracy of GP water content control. As a first step, the measurement system achieved an improved accuracy of 0.22 g/g. The application of a MPC for water content control based on the improved measurement results in an overall control accuracy was 0.09 g/g. This method offers a new approach, allowing the use of GP for studies with varying water content. This addressed the limitations of existing plant growth studies and allowed the prospection of dependencies between dynamic water deficit and plant development using GP as a growth substrate for research studies.

Study on Reasonable Feature of Compaction Loess with Air Porosities

2012 ◽  
Vol 238 ◽  
pp. 441-446
Author(s):  
Jing Yang ◽  
Ling Hao Wang ◽  
Fu Li Ma ◽  
Xiao Hong Bai
Keyword(s):  
Quality Control ◽  
Water Content ◽  
Dry Density ◽  
Compression Coefficient ◽  
Optimum Water Content ◽  
Compaction Energy ◽  
Internal And External Factors ◽  
And Control ◽  
Compaction Method ◽  
Optimum Water

The degree of compaction is usually used as the compaction quality and control indicator of backfill in practical project. However, as the degree of compaction is affected by various internal and external factors, its accuracy is difficult to guarantee. In this paper, compacted loess samples were prepared under different compaction energies by normal compaction method. The curves of compression coefficient and dry density, the compression coefficient and porosity of compaction loess samples under different compaction energy are analyzed while the water content is constant. The air porosities of compaction loess samples under different compaction energy and water content are calculated and summed up. The air porosity of compaction loess samples under different compaction energy is more stable than the degree of compaction when the water content is exactly equal to the optimum water content. The rationality of using air porosity as the loess compaction quality control indicator is discussed. It is proposed using air porosity as additional indicator of compaction quality control on the condition of the loess compacted dry density meeting the requirements. The air porosity less than 6.5% is suggested as the additional quality control indictor for region backfill compaction.

scholarly journals Effect of nitrogen application on the phytochemical production in Jatropha curcas L. (Angiosperms: Euphorbiaceae) during drought conditions

2019 ◽  
Vol 6 (2) ◽  
pp. 183-189
Author(s):  
Adewole Adebusola ◽  
Odjegba Victor ◽  
Iwuala Emmanuel ◽  
Afroz Alam
Keyword(s):  
Drought Stress ◽  
Water Content ◽  
Jatropha Curcas ◽  
Relative Water Content ◽  
Protective Mechanism ◽  
Stem Cuttings ◽  
Jatropha Curcas L ◽  
Relative Water ◽  
Simulated Drought ◽  
And Control

Nitrogen is an important nutrient for the successful metabolism of plants, but its occurrence in soil is always very limited. This nutrient has a significant role to preserve plants during various stress conditions by altering the production rate of phytochemicals as defense weapons. Hence, this study was carried out to analyze the effect of nitrogen supply on the phytochemical composition and relative water content in Jatropha curcas L. under a simulated drought condition. The selected seedlings were grown from stem cuttings and categorized into different treated three groups along with the control. After the completion of the experiment, the growth pattern and phytochemical production were investigated. An increased malondialdehyde activity (MDA) was reported with a reduction in relative water content (RWC) of the leaf and in the biomass of seedlings under drought stress. A significant decrease in the levels of alkaloids, phenol, flavonoids and tannins with an increase in saponins and terpenoids was also observed in only simulated drought stressed plants. While a significant increase in the levels of total alkaloid, tannins, flavonoids and phenols was observed in those plants where exogenous nitrogen was supplied before the start of drought periods, unlike in treated and control plants. Therefore, it was revealed that application of Nitrogen enabled the plants to possess protective mechanism through the production of phytochemicals that facilitate the cell membrane to reduce the detrimental effects caused by drought stress.

scholarly journals Functionality of Process Control in Moulded Goods Production

2019 ◽  
Vol 105 ◽  
pp. 01006 ◽  
Author(s):  
Olga Puhova ◽  
Vladimir Lebedev
Keyword(s):  
Process Control ◽  
Automatic Control ◽  
Water Content ◽  
Automatic Regulation ◽  
Automatic Process ◽  
Automatic Process Control ◽  
Custom Made ◽  
Mineral Components ◽  
And Control ◽  
Measurement And Control

The article presents the findings of the research in the field of automatic control of peat mass quality in hollow peat pot production. The strength of the finished product determines its integrity and crumblability which affect the loss during drying and transportation. Therefore, knowing the strength characteristics we can use them for quality control. Besides, not strength but heterogeneity in the distribution of pores, moisture, and density is responsible for crumbling. Automatic regulation of effective peat mass water content is one of the main stages determining the quality. At this stage automatic control of the flow, dispersion and water content of peat mass entering the pulper tank as well as measurement and control of the amount of additional elements introduced, such as mineral components, wood pulp, and water to form the required consistency, are provided for. The models of automatic process control are built and analyzed with the methods of differential equation theory, numerical integration, and stability theory. The model is implemented with the custom-made proprietary software. The model adequacy is determined empirically by comparing the data obtained on the model with the actual technological process.

scholarly journals Froth Pipeline Water Content Estimation and Control

2015 ◽  
Vol 48 (8) ◽  
pp. 63-68 ◽  
Author(s):  
Yu Miao ◽  
Fangwei Xu ◽  
Yi Zheng ◽  
Biao Huang ◽  
John MacGowan ◽  
...  
Keyword(s):  
Water Content ◽  
Estimation And Control ◽  
And Control

Water relations and yield inAzospirillum-inoculated wheat exposed to drought in the field

2004 ◽  
Vol 82 (2) ◽  
pp. 273-281 ◽  
Author(s):  
Cecilia M Creus ◽  
Rolando J Sueldo ◽  
Carlos A Barassi
Keyword(s):  
Grain Yield ◽  
Water Potential ◽  
Water Content ◽  
Water Relations ◽  
Relative Water Content ◽  
Mineral Content ◽  
Water Status ◽  
Water Fraction ◽  
Relative Water ◽  
And Control

There are scarce data connecting water relations in Azospirillum-inoculated wheat suffering drought during anthesis with the yield and mineral content of grains. Azospirillum brasilense Sp245-inoculated seeds of Triticum aestivum 'Pro INTA Oasis' were sown in nonirrigated and control plots. Water potential, water content, and relative water content were determined on flag leaves. Plant water status was calculated from pressure–volume curves. At maturity, grain yield and its components were determined. P, Ca, Mg, K, Fe, Cu, and Zn were determined in dried grains. Even though the cultivar underwent osmotic adjustment, significantly higher water content, relative water content, water potential, apoplastic water fraction, and lower cell wall modulus of elasticity values were obtained in Azospirillum-inoculated plants suffering drought. Grain yield loss to drought was 26.5% and 14.1% in noninoculated and Azospirillum-inoculated plants, respectively. Grain Mg and K diminished in nonirrigated, noninoculated plots. However, grains harvested from Azospirillum-inoculated plants had significantly higher Mg, K, and Ca than noninoculated plants. Neither drought nor inoculation changed grain P, Cu, Fe, and Zn contents. A better water status and an additional "elastic adjustment" in Azospirillum-inoculated wheat plants could be crucial in promoting higher grain yield and mineral quality at harvest, particularly when drought strikes during anthesis.Key words: Azospirillum, wheat, drought, pressure–volume curves, yield, mineral content.

scholarly journals Formation of Tobacco-Specific Nitrosamines (TSNA) During Air-Curing: Conditions and Control

2005 ◽  
Vol 21 (6) ◽  
pp. 321-330 ◽  
Author(s):  
M Staaf ◽  
S Back ◽  
A Wiernik ◽  
I Wahlberg ◽  
RC Long ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Chemical Analysis ◽  
Water Content ◽  
Water Activity ◽  
Present Review ◽  
Activity Data ◽  
Curing Conditions ◽  
Tobacco Specific Nitrosamines ◽  
And Control

AbstractThe present review deals with studies performed during several consecutive years on the effect of air-curing on tobacco-specific nitrosamine (TSNA) formation and quality of tobacco. Temperature, relative humidity, water content and water activity data were collected during curing of dark tobacco in traditional air-curing barns and bulk-curing barns of different sizes, and chemical analysis of the cured tobacco were performed.

Effects of Throughfall Exclusion on Soil Respiration in a Moso Bamboo Forest Soil in Southeast China

2013 ◽  
Vol 726-731 ◽  
pp. 3762-3766
Author(s):  
Qian Li ◽  
Ben Zhi Zhou ◽  
Xiao Ming Wang ◽  
Xiao Gai Ge ◽  
Yong Hui Cao
Keyword(s):  
Soil Respiration ◽  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Bamboo Forest ◽  
Monthly Variation ◽  
Exclusion Experiment ◽  
Throughfall Exclusion ◽  
And Control

Both soil temperature and soil water condition are important factors that influence soil respiration at different forest. In this study, a throughfall exclusion experiment was carried out to explore effects of increased soil temperature and decreased soil water content on soil respirations in the bamboo forest in North Zhejiang of China. The results showed that 1) monthly variation in soil respiration ranges from 2.00 to 0.63μmol·m-2·s-1 and 2.20 to 0.66μmolm-2s-1in throughfall exclusion and control plots respectively. The soil respiration monthly variation following the monthly variation of soil temperature and in contrast to the monthly soil water content. 2) Soil temperature can explain 65.5%and 73.9% of the variance of soil respiration in throughfall exclusion and control plots respectively. Multivariate linear model based on temperature and soil water content explained 66.9% and 73.4% of the variance of soil respiration in throughfall exclusion and control plots respectively. Soil water content had no significant relationship with soil respiration. Q10 values of throughfall exclusion and control plots were 5.99 and 4.44.

scholarly journals Pengaruh Suhu Pengeringan Terhadap Kualitas Produk Gula Semut dari Nira

2019 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Meldayanoor Meldayanoor ◽  
Adzani Ghani Ilmannafian ◽  
Fitria Wulandari
Keyword(s):  
Water Content ◽  
Ph Value ◽  
Ash Content ◽  
Brown Sugar ◽  
Sugar Water ◽  
Drying Temperature ◽  
Organoleptic Test ◽  
Palm Trees ◽  
And Control

Kabupaten Tanah Laut has many sugar palm trees especially in the area of the ​​Guntung Besar and daerah Ranggang. But the manufacture of palm water in the area is only made into sugar print / brown sugar because the manufacture is more practical. If brown sugar is kept at room temperature, then brown sugar is easily melted. Therefore further processing is needed to maintain the quality of brown sugar. The purpose of this research is to make brown sugar with drying temperature variation. This research use ekspremental method with 4 treatment that is drying temperature 100oC, 75 oC, 50 oC, and control (without temperature drying). The test used in this research is pH test, water content test, ash content test and organoleptic test. The result shows that the pH value of sugar water used ranges from 6 to 7, the water content is 2,97% with the value of SNI maximal 3% and the ash content is 1, 98% with the value of SNI maximal 2, 0% at treatment A1 already fulfill SNI, Organoleptic test on flavor, aroma, texture and color obtained best result that is at treatment P1

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