Study on the Relationships between Offset Ink Tack Value and its Viscosity, the Separation Velocity

2011 ◽  
Vol 332-334 ◽  
pp. 1704-1708
Author(s):  
Yong Gang Yang ◽  
Fu Ping Liu
Keyword(s):  
High Viscosity ◽  
Linear Velocity ◽  
Linear Speed ◽  
Separation Velocity ◽  
Study Results ◽  
Printing Ink

In order to find out the variation law of ink stickiness during the printing, the ink tack value under 9 different linear velocities of ink distributing roller was tested, and the relation equations between tack value and the roller linear velocity were built up. At the same time, the plastic viscosities of 8 offset inks and their tack values under 9 separation velocities were also tested. The study results showed that the higher the linear speed was, the larger the tack value was, and it would stay in a relatively high tack value (regarded as infinite tack value). Also, the printing ink having high viscosity may possess low tack value.

Research on the Tack Value of Offset Printing Ink

2011 ◽  
Vol 314-316 ◽  
pp. 1401-1405
Author(s):  
Yong Gang Yang
Keyword(s):  
High Viscosity ◽  
Linear Velocity ◽  
Offset Printing ◽  
Linear Speed ◽  
Study Results ◽  
Printing Ink

In order to find out the variation law of ink stickiness during the printing, the ink tack value under 9 different linear velocities of ink distributing roller was tested, and the relation equations between tack value and the roller linear velocity were built up. At the same time, the plastic viscosities of 8 offset inks and their tack values under 9 separation velocities were also tested. The study results showed that the higher the linear speed was, the larger the tack value was, and it would stay in a relatively high tack value (regarded as infinite tack value). Also, the printing ink having high viscosity may possess low tack value.

Study on the Relationships between Plastic Viscosity and Tack Value of Offset Printing Ink

2015 ◽  
Vol 723 ◽  
pp. 814-818 ◽  
Author(s):  
Yong Gang Yang
Keyword(s):  
High Viscosity ◽  
Linear Velocity ◽  
Plastic Viscosity ◽  
Offset Printing ◽  
Linear Speed ◽  
Study Results ◽  
Printing Ink

In order to find out the variation law of ink stickiness during the printing, the ink tack value under 9 different linear velocities of ink distributing roller was tested, and the relation equations between tack value and the roller linear velocity were built up. At the same time, the plastic viscosities of 8 offset inks and their tack values under 9 separation velocities were also tested. The study results showed that the higher the linear speed was, the larger the tack value was, and it would stay in a relatively high tack value (regarded as infinite tack value). Also, the printing ink having high viscosity may possess low tack value.

Effects of the Velocity of Ink Distributing Roller on Ink Tack Value

2011 ◽  
Vol 295-297 ◽  
pp. 2033-2036
Author(s):  
Yong Gang Yang ◽  
Shu Hua Hu ◽  
Fu Ping Liu
Keyword(s):  
Linear Velocity ◽  
Linear Speed ◽  
Study Results

In order to find out the variation law of ink tack during the printing, the ink tack value under 9 different linear velocities of ink distributing roller was tested with an electric ink tack-o-meter in this article, and the relation equations between tack value and the roller linear velocity were built up. The study results showed that the higher the linear speed was, the larger the tack value was, and it would stay in a relatively high tack value (regarded as infinite tack value). At the same time, the relationships between ink tack and the roller linear velocity was different for various inks, so did the infinite tack value.

Study on the Relation between Ink Tack Value and Wavers Velocity

2011 ◽  
Vol 314-316 ◽  
pp. 1350-1353
Author(s):  
Yong Gang Yang
Keyword(s):  
Linear Velocity ◽  
Linear Speed ◽  
Study Results

In order to find out the variation law of ink tack during the printing, the ink tack value under 9 different linear velocities of ink distributing roller was tested with an electric ink tack-o-meter in this article, and the relation equations between tack value and the roller linear velocity were built up. The study results showed that the higher the linear speed was, the larger the tack value was, and it would stay in a relatively high tack value (regarded as infinite tack value). At the same time, the relationships between ink tack and the roller linear velocity was different for various inks, so did the infinite tack value.

Results of Chronic Dietary Toxicity Studies of High Viscosity (P70H and P100H) White Mineral Oils in Fischer 344 Rats

2004 ◽  
Vol 32 (4) ◽  
pp. 439-447 ◽  
Author(s):  
Gary W. Trimmer ◽  
James J. Freeman ◽  
R. A. J. Priston ◽  
Jan Urbanus
Keyword(s):  
High Viscosity ◽  
Female Rats ◽  
Fischer 344 Rats ◽  
Mesenteric Lymph Nodes ◽  
Mineral Oils ◽  
Fischer 344 ◽  
Mesenteric Lymph ◽  
Dietary Concentration ◽  
Study Results ◽  
White Mineral

Two-year dietary studies were conducted to determine the chronic toxicity and its reversibility, and the carcinogenicity of P70(H) and P100(H) white mineral oils in Fischer-344 rats (F-344). The studies were identical in design and followed the Organization for Economic Cooperation and Development, Guidelines for Testing Chemicals, Guideline 453, 1981. Additional endpoints evaluated were: (1) extent of mineral hydrocarbon deposition in liver, kidneys, mesenteric lymph nodes, and spleen of female rats at 3, 6, 12, 18 and 24 months, and (2) reversibility of effects following cessation of exposure. Dietary concentration were 60, 120, 240, and 1, 200 mg/kg/day, adjusted periodically to account for bodyweight changes. Study results were consistent with preceding subchronic studies. No treatment-related mortality, neoplastic lesions, or changes in clinical health, hematology, serum chemistry, or urine chemistry were evident in any group administered either white oil. Statistically significant higher food consumption was noted in the 1, 200 mg/kg group males and females exposed to either white oil and statistically significant higher body weights were noted in the 1, 200-mg/kg males during the latter portion of the P100(H) study. Higher mesenteric lymph node weights were accompanied by increased severity of infiltrating histiocytes. This occurred to a greater extent with the P70(H) than the P100(H) oil. No other histopathology of significance was observed. Mineral hydrocarbons were detected in the liver following exposure to either oil. Maximal concentrations of mineral hydrocarbons in the liver were similar with both oils but occurred more rapidly with the P70(H) oil. Liver mineral hydrocarbon content returned to near-background levels during the reversibility phase. In conclusion, lifetime exposer of F344 rats to P70(H) and P100(H) white oils resulted in only minimal findings and with no consequence to clinical health. Thus, under the conditions of these studies, the No Observable Adverse Effect Level (NOAEL) for these studies was considered to be 1, 200 mg/kg/day.

scholarly journals DESIGN AND EXPERIMENT OF CENTRIFUGAL COLLISION TEST DEVICE FOR MILLET AND SWEET BUCKWHEAT GRAIN

2021 ◽  
pp. 193-202
Author(s):  
Jingxin Sun ◽  
Liqin Yang ◽  
Baohui Xu ◽  
Yuming Guo ◽  
Qingliang Cui ◽  
...  
Keyword(s):  
Moisture Content ◽  
Rotational Speed ◽  
Optimum Moisture Content ◽  
Linear Velocity ◽  
Rotary Table ◽  
Test Device ◽  
Linear Speed ◽  
Grain Crushing ◽  
Grain Moisture ◽  
Collision Force

This critical collision damage force of millet and sweet buckwheat grain and the shelling force of shelled granular materials are important basic data for research of threshing and shelling technology and equipment. In order to master the linear velocity and collision force of grain with different moisture content when collision damage occurs, a centrifugal collision test device is designed. Based on the dynamic and kinematic analysis of grain in the centrifugal rotary table, the collision force between grain and steel plate was measured by PVDF piezoelectric pressure sensor and data acquisition system. The results showed that: under the same moisture content, the higher the rotational speed, the higher the grain crushing rate; at the same rotational speed, with the increase of moisture content, the crushing rate first decreased and then increased. When the moisture content of Jingu-21 and Yuqiao-4 is 19.7% and 17.8%, respectively, the grain crushing rate was the lowest. In terms of the anti-collision ability of grain, the optimum moisture content of threshing is between 19.7% and 21% for millet. For sweet buckwheat, the optimum moisture content of threshing is 17.8% ~19%, while the optimum moisture content of shelling by centrifugal sheller is about 11%. The faster the rotational speed of centrifugal rotary table is, the greater the linear speed of grain is, and the greater the collision force is. When the linear velocity of grain was 8.32 m/s and 11.30 m/s respectively, the millet grain moisture content was 11.1% and 20.9% respectively, damage began to appear, and the corresponding collision force was about 5.51 N and 10.6 N, respectively. When the linear velocity of grain was 8.32 m/s and 11.30m/s respectively, and the moisture content was 11.1% and 22.8% of the sweet buckwheat grain respectively, damage began to appear, the corresponding collision force was about 8.92 N and 12.79 N, respectively. When the rotating speed of rotary table was 910 r/min, the linear speed of grain was 27.05 m/s, the crushing rate of millet and sweet buckwheat grain in harvest period were 56.30% and 63.76%, respectively, and the crushing rate of millet and buckwheat grain with 11.1% moisture content were 86.27% and 89.4%, respectively. The research results can provide theoretical basis for design and optimization of millet and sweet buckwheat combine harvester, threshing device and shelling device.

scholarly journals Analysis of loss of grain grains by classical thrusting and separating device of grain harvester combine

2021 ◽  
Author(s):  
I. L. Rogovskii ◽  
Keyword(s):  
Dead Space ◽  
Linear Velocity ◽  
Small Component ◽  
Linear Speed ◽  
Traditional Scheme ◽  
Combine Harvester

Based on the analysis of most domestic combines, it is established that they have a traditional scheme of threshing and separating device, which includes one or two sequentially arranged threshing threshers and keyboard straw shaker. The design of drumming from rods with cross plates provides, first of all, intensification of process of threshed grain. Cereals are threshed easily, so there is no need to intensify threshing. For example, when harvesting grain harvester KZS-9M "Slavutich" with a gap at the outlet between the threshing drum and the drum 18 mm and the speed of the threshing drum 450 min-1, the loss of threshing was absent in all experiments. In this case, the transverse plates of the drum are an obstacle to the movement of the threshed mass in the threshing-separating device, forming a dead space behind each bar, where a small component of plant mass accumulates. The quality of the threshing and separating device of the combine harvester was determined by the coefficients of undersmilling, separation, crushing and clogging of the grain received for cleaning. Damage to the grain during threshing in the thresher is mainly due to the influence of the circumferential linear velocity of the threshing drum and the gap between the threshing drum and the drum. Therefore, the gap in the threshing space is variable and changes in the direction of decrease from the entrance of the plant mass into the threshing device to its exit. To summarize, we used the gap in the threshing space at the outlet of the thresher. In this regard, the beginning of the tests was at a drum speed of 450 min-1. During the tests it was found that the greatest influence on the damage to the grain has a circular linear speed of the threshing drum. Thus, when increasing the speed of the drum per 100 min-1 from 450 to 550 min-1, the damage increased from 1.5% to 5.5%, ie almost 4 times.

scholarly journals Evolution of agility and linear speed in an adolescent’s sample during the last 20 years (1998-2018)

2020 ◽  
pp. 97-103
Author(s):  
J. Arboix-Alió ◽  
S. Marcaida-Espeche ◽  
J. Puigvert-Peix
Keyword(s):  
Test Performance ◽  
New Technologies ◽  
Cross Sectional Study ◽  
Linear Velocity ◽  
Sectional Study ◽  
Cross Sectional ◽  
Linear Speed ◽  
Nuevas Tecnologías ◽  
Social Habits ◽  
Physical Capacities

El objetivo del presente estudio fue analizar los cambios en las capacidades físicas de la agilidad y la velocidad lineal en una muestra de escolares españoles durante un período de 20 años (1998-2018). Para este propósito, se diseñó un estudio transversal y se analizaron los resultados de las prueba 10x10 metros y 45 metros. La muestra fue configurada por un total de 3056 escolares de entre 12 y 13 años (1792 varones y 1264 mujeres). Los resultados mostraron una disminución en el rendimiento del test en ambos sexos para la prueba de 10x10 metros. Por el contrario, no se obtuvieron cambios significativos en la prueba de 45 metros lisos. El aumento de los estilos de vida sedentarios de las sociedades industrializadas, el aumento de la proporción de obesidad, el abuso de las nuevas tecnologías o los nuevos hábitos sociales podrían explicar el empeoramiento de la agilidad en la muestra del estudio. The aim of the present study was to analyse the changes in the physical capacities of agility and linear velocity in a sample of Spanish schoolchildren during a period of 20 years (1998-2018). For this purpose, a cross-sectional study was designed and the results of the 10x10 shuttle test and 45-meter dash test were analysed. The sample was configured by a total of 3056 schoolchildren between 12 and 13 years old (1792 males and 1264 females). The results showed a decrease in test performance in both sexes for the 10x10 shuttle test. On the contrary, no significant changes were obtained in relation to the performance of the test of the 45-meter dash. The increase in the sedentary lifestyles of industrialized societies, the increase in the obesity proportion, the abuse of new technologies or new social habits could explain the worsening of agility in the study sample.

scholarly journals Evaluación de la velocidad, agilidad y fuerza en jóvenes jugadores de pádel (Speed, agility, and strength assessment in young padel players)

Retos ◽  
2018 ◽  
pp. 263-266
Author(s):  
Bernardino Javier Sánchez-Alcaraz Martínez ◽  
Vicente Orozco Ballesta ◽  
Javier Courel Ibáñez ◽  
Alejandro Sánchez Pay
Keyword(s):  
Linear Velocity ◽  
Test Results ◽  
Advanced Level ◽  
Strength Assessment ◽  
Linear Speed ◽  
Change Of Direction ◽  
Research Participants ◽  
Change Direction

El objetivo de este estudio es evaluar la velocidad de desplazamiento, la fuerza, y la agilidad en jóvenes jugadores de pádel, y analizar las diferencias en función del género. Los participantes de la investigación fueron 17 jugadores de pádel de nivel avanzado (8 chicos y 9 chicas) con edades comprendidas entre los 11 y los 16 años. Los jugadores completaron el test del hexágono, el de velocidad lineal de 10 y 20 metros y el de lanzamiento de balón medicinal. Los resultados mostraron que los jugadores de pádel masculinos presentaron unos tiempos significativamente inferiores que las participantes de género femenino en velocidad de sprint lineal, fuerza de tren superior y velocidad de cambio de dirección. Las variables de velocidad y velocidad de cambio de dirección correlacionan significativa y positivamente sí, mientras que la variable de fuerza correlaciona significativa y negativamente con las variables de velocidad de desplazamiento y velocidad de cambio de dirección. Abstract. The aim of this study is to evaluate lineal speed, strength, and agility in young padel players, and to analyse the differences by gender. The research participants were 17 advanced level padel players (8 boys and 9 girls) aged 11 to 16 years. Players completed the hexagon test, the 10-meter and 20-meter linear speed tests, and the medical ball throwing test. Results show that male paddle players present better scores than female participants in linear velocity, upper train force, and speed of change of direction. The variables of speed and change direction speed correlate significantly and positively, while strength correlates significantly and negatively with speed and change direction speed.

Apportionment of Impairment from Meniscal Tears and Knee Arthritis

2013 ◽  
Vol 18 (5) ◽  
pp. 1-10 ◽  
Author(s):  
Charles N. Brooks ◽  
James B. Talmage
Keyword(s):  
Medial Meniscus ◽  
Degenerative Joint Disease ◽  
Joint Disease ◽  
Detailed Knowledge ◽  
Meniscal Tears ◽  
Knee Arthritis ◽  
Degenerative Arthritis ◽  
Study Results ◽  
Physical Findings ◽  
Causation Analysis

Abstract Meniscal tears and osteoarthritis (osteoarthrosis, degenerative arthritis, or degenerative joint disease) are two of the most common conditions involving the knee. This article includes definitions of apportionment and causes; presents a case report of initial and recurrent tears of the medial meniscus plus osteoarthritis (OA) in the medial compartment of the knee; and addresses questions regarding apportionment. The authors, experienced impairment raters who are knowledgeable regarding the AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), show that, when instructions on impairment rating are incomplete, unclear, or inconsistent, interrater reliability diminishes (different physicians may derive different impairment estimates). Accurate apportionment of impairment is a demanding task that requires detailed knowledge of causation for the conditions in question; the mechanisms of injury or extent of exposures; prior and current symptoms, functional status, physical findings, and clinical study results; and use of the appropriate edition of the AMA Guides. Sometimes the available data are incomplete, requiring the rating physician to make assumptions. However, if those assumptions are reasonable and consistent with the medical literature and facts of the case, if the causation analysis is plausible, and if the examiner follows impairment rating instructions in the AMA Guides (or at least uses a rational and hence defensible method when instructions are suboptimal), the resulting apportionment should be credible.

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