ANALYSIS OF CORRELATION BETWEEN AIMING ADJUSTMENT TRAJECTORY AND TARGET

2005 ◽  
Vol 05 (02) ◽  
pp. 253-259
Author(s):  
KUO-BIN LIN ◽  
CHI-KUANG HWANG
Keyword(s):  
Performance Analysis ◽  
Negative Correlation ◽  
Video Camera ◽  
The Other ◽  
Motion Analysis System ◽  
Positive Correlation ◽  
Adjustment Procedure ◽  
Digital Video Camera ◽  
Analysis System ◽  
The Relationship

In archery, there is the relationship among stability of the archer, adjustments made during the aiming procedure, and the targeting coordination. Twelve specialists from the male archery team of National College of Physical Education and Sports took part in this research, with 12 arrows sets up at a distance of 70 m. A laser pen is located on the bow handle for capturing the trajectory of the aiming procedure with a digital video camera, and the other camera for the coordination of target. The Ariel Performance Analysis System motion analysis system is used to obtain the x and y aiming trajectory coordinates for analyzing the correlation. Results of this research were: (1) Ten archers whose variation of the x axis is larger than that of the y axis. (2) There are four archers whose aiming adjustment procedure has all the positive correlation with the target in the x axis, but there are three archers with all negative correlation. (3) In terms of the correlation in the y axis, there are six archers with all positive correlation, but there are two archers with all negative correlation.

scholarly journals Spatial Variation of the Relationship between PM2.5Concentrations and Meteorological Parameters in China

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Gang Lin ◽  
Jingying Fu ◽  
Dong Jiang ◽  
Jianhua Wang ◽  
Qiao Wang ◽  
...  
Keyword(s):  
Negative Correlation ◽  
Meteorological Parameters ◽  
Semiarid Region ◽  
Strong Positive Correlation ◽  
Annual Average ◽  
Strong Negative Correlation ◽  
Positive Correlation ◽  
Humid Region ◽  
The Relationship ◽  
Warm Temperate

Epidemiological studies around the world have reported that fine particulate matter (PM2.5) is closely associated with human health. The distribution of PM2.5concentrations is influenced by multiple geographic and socioeconomic factors. Using a remote-sensing-derived PM2.5dataset, this paper explores the relationship between PM2.5concentrations and meteorological parameters and their spatial variance in China for the period 2001–2010. The spatial variations of the relationships between the annual average PM2.5, the annual average precipitation (AAP), and the annual average temperature (AAT) were evaluated using the Geographically Weighted Regression (GWR) model. The results indicated that PM2.5had a strong and stable correlation with meteorological parameters. In particular, PM2.5had a negative correlation with precipitation and a positive correlation with temperature. In addition, the relationship between the variables changed over space, and the strong negative correlation between PM2.5and the AAP mainly appeared in the warm temperate semihumid region and northern subtropical humid region in 2001 and 2010, with some localized differences. The strong positive correlation between the PM2.5and the AAT mainly occurred in the mid-temperate semiarid region, the humid, semihumid, and semiarid warm temperate regions, and the northern subtropical humid region in 2001 and 2010.

Effect of Vibration on Rapeseed Header Loss and Optimization of Header Frame

2021 ◽  
Vol 64 (4) ◽  
pp. 1247-1258
Author(s):  
Yang Li ◽  
Lizhang Xu ◽  
Zhipeng Gao ◽  
En Lu ◽  
Yaoming Li
Keyword(s):  
Modal Analysis ◽  
Engine Speed ◽  
Vibration Measurement ◽  
List Type ◽  
Positive Correlation ◽  
Combine Harvester ◽  
Analysis System ◽  
Combine Harvesters ◽  
Relationship Of ◽  
The Relationship

HighlightsThe relationship of vibration and header loss was studied by multi-point vibration measurement and loss collection test.There was an approximately linear positive correlation between total header vibration and total rapeseed header loss.The header frame was analyzed and optimized through modal simulation and testing.The total rapeseed header loss of the improved header was reduced by 33.2% to 46.9%.Abstract. In view of the current large rapeseed header losses of rape combine harvesters, the effects of the header on rapeseed header loss were studied from the perspective of vibration. First, the vibrations at various measuring points on the header during rape harvest were studied using a data acquisition and analysis system while performing collection tests of rapeseed header loss with the sample slot method. The relationships between total header vibration and total rapeseed header loss and between vertical cutter vibration and rapeseed vertical cutter loss were shown to have a positive correlation, and they all increased with the increase in engine speed. Vertical cutter loss accounted for 31.2% to 42.4% of the total rapeseed header loss. Modal analysis and optimization of the header frame were then performed by simulation and test. The natural frequencies of the first-order and second-order modes of the optimized header were increased, and the possibility of resonance with other working parts was eliminated. Finally, the improved header was tested during rape harvest. The results showed that the total vibration of the improved header was reduced by 19.9% to 43.9%, and the total rapeseed header loss was reduced by 33.2% to 46.9%. The vertical cutter vibration was reduced by 30.5% to 49.8%, and the rapeseed vertical cutter loss was reduced by 20.8% to 34.7%. In addition, the vibration and rapeseed loss of the improved header had relatively slow rates of increase with the increase in engine speed. The method of reducing rapeseed loss by reducing the header vibration achieved an obvious and positive effect. Keywords: Frame optimization, Modal analysis, Rape combine harvester, Rapeseed header loss, Vibration.

Morpho-Biochemical Characteristics of Brinjal Germplasms Affect the Abundance And Infestation of Jassid

2021 ◽  
Vol 19 (1) ◽  
pp. 81-91
Author(s):  
F Yasmin ◽  
MR Amin ◽  
M Afroz ◽  
MAH Swapon ◽  
MM Hossain
Keyword(s):  
Protein Content ◽  
Chlorophyll Content ◽  
Negative Correlation ◽  
Significant Positive Correlation ◽  
Significant Negative Correlation ◽  
Reducing Sugar ◽  
Total Sugar ◽  
The Other ◽  
Biochemical Characteristics ◽  
Positive Correlation

The tropical vegetable, brinjal is cultivated throughout the year in Bangladesh but the crop is infested by a number of insects including jassid. This study investigated the effects of different biophysical and biochemical characteristics of twelve brinjal germplasms on the abundance and infestation of jassid. The experiment was conducted during September 2018 to March 2019 in Gazipur, Bangladesh with twelve brinjal germplasms namely BD-7320, BD-7328, BD-9952, BD-10154, BD-10158, BARI Begun-1, BARI Begun-4, BARI Begun-5, BARI Begun- 6, BARI Begun-7, BARI Begun-8 and BARI Begun-9. The incidence of jassid was recorded from 3rd December to 26th March, and the lowest population was found on BARI Begun- 6. Among the biophysical traits, plant height, number of branch and leaf per plant, and leaf area exerted significant positive correlation; whereas trichome on lower and upper surfaces of leaf, spine per stem and leaf showed significant negative correlation with the abundance of jassid. On the other hand, moisture, reducing sugar, total sugar and protein content of the leaves and fruits, chlorophyll content of the leaves exerts significant positive correlation but ash and pH contents of the leaves and fruits were negatively correlated with the abundance of jassid. Jassids showed the lowest level of leaf infestation on BARI Begun-6, which could be for further analysis to develop jassid resistant brinjal. SAARC J. Agric., 19(1): 81-91 (2021)

Determination of the correlation relationship between irrigation and distribution of agricultural lands

2021 ◽  
Vol 07 (02) ◽  
pp. 29-35
Author(s):  
Kamil Zakir oğlu İbrahimli ◽  
Keyword(s):  
Key Words ◽  
Statistical Method ◽  
Negative Correlation ◽  
Agricultural Lands ◽  
Correlation Relationship ◽  
Positive Correlation ◽  
Correlation Methods ◽  
Correlation Degree ◽  
The Relationship

The importance of the statistical method is great in the study of natural and economic processes. It is possible to conduct analyzes and obtain results with the help of this method. Sometimes phenomena and processes co-exist and develop interdependently. In this case, it is necessary to determine the relationship between them, to express this relationship. Key words: perfect positive correlation, perfect negative correlation, direction of correlation, degree of correlation, methods of calculating correlation, Spearman᾽s method

scholarly journals The Relationship Between Water Quality and Phytoplankton Abundance at The Eastern Part of Segara Anakan Cilacap, Central Java

2019 ◽  
Vol 1 (2) ◽  
pp. 1
Author(s):  
Hasby Ghoni Asiddiqi ◽  
Agatha Sih Piranti ◽  
Erwin Ardli Riyanto
Keyword(s):  
Water Quality ◽  
Negative Correlation ◽  
Physical Factor ◽  
Phytoplankton Abundance ◽  
Chemical Factor ◽  
Strong Negative Correlation ◽  
Positive Correlation ◽  
Central Java ◽  
Primary Producer ◽  
The Relationship

Phytoplankton is the primary producer whose existence depends not only on the nutrient. The eastern part of Segara Anakan waters experienced changes where the decline in quality which received input from organic and inorganic wastes and residential, industrial and factory wastes of Holcim and Pertamina factories. The purpose of this research is to study the water quality and to study the relationship between water quality and abundance of phytoplankton at the eastern part of Segara Anakan. The result showed that Water quality in Segara Anakan waters in the eastern part of Cilacap consists of several parameters that beyond the quality standards according to the Keputusan Menteri Lingkungan Hidup No. 51 of 2004 such as pH, Nitrate, Ammonia, Phosphate, and TSS. Water temperature is a physical factor which has a strong negative correlation with the abundance of phytoplankton, followed by TSS as a physical factor which has a positive correlation. The chemical factor which has a positive correlation with abundance are TDS, Nitrite and pH, followed by Phosphate, Salinity, Ammonia, and Nitrate which has a negative correlation with the abundance of phytoplankton. Key Words: Environmental factor, phytoplankton, Segara Anakan, Spatial variation, temporal variation.

The Relationship between Resilience and Mental Health: the Mediating Effect of Positive Emotions

2018 ◽  
Vol 2 (3) ◽  
pp. 87
Author(s):  
Zhun Gong ◽  
Lichao Yu ◽  
Jonathan W Schooler
Keyword(s):  
Mental Health ◽  
Negative Correlation ◽  
Psychological Health ◽  
Positive Emotions ◽  
Mediating Effect ◽  
Depression And Anxiety ◽  
Cross Sectional ◽  
Positive Correlation ◽  
Relationship Of ◽  
The Relationship

<p class="tgt"><em>To investigate the relationship of resilience, positive emotions and mental health, and the relationship of resilience, positive emotion and three sub-dimensions of mental health: self-affirmation, depression and anxiety. In this study, the existing cross-sectional data, select the Beijing Forestry University data as samples. In this study, questionnaire survey a random sample of 199 undergraduate students of Beijing Forestry University, they uniform application three Scale Surveying, PANAS, CD-RISC, GHQ-20. According from the study, (1) resilience, positive mood and general health are related where resilience and positive emotions between the resilience. General psychological health, positive emotions and general mental health</em><em>?</em><em>it is positively correlated. (2) Resilience and self-affirmation exists, positive correlation with depression and anxiety, respectively negative correlation. Between positive emotions and self-affirmation the positive correlation with anxiety negative correlation. (3) Part mediating effect of positive emotions exist between resilience and self-affirmation, resilience can be made to self-affirmation prediction coefficient from 0.042 down to 0.036. Therefore, this study concluded that resilience undergraduates can have an impact on mental health through the intermediary variable positive emotions.</em></p>

Development of a Crack Type Index

2005 ◽  
Vol 1940 (1) ◽  
pp. 99-109 ◽  
Author(s):  
Hosin (David) Lee ◽  
Jungyong (Joe) Kim
Keyword(s):  
Spatial Distribution ◽  
Video Camera ◽  
Multiple Cracks ◽  
Crack Analysis ◽  
Transverse Cracking ◽  
Digital Video Camera ◽  
Crack Type ◽  
Image Pixels ◽  
Analysis System ◽  
Utility Vehicle

Many automated systems for crack analysis have been developed to measure the extent and severity of pavement cracking objectively. However, the accuracy of such an automated crack analysis system has not been satisfactory. This paper presents a crack type index (CTI) that can be easily adopted to determine the crack type objectively as longitudinal, transverse, and alligator cracking. The CTI is based on the spatial distribution of the image tiles rather than image pixels, where a tile is defined as a subimage of a whole digital image. The spatial distribution of image tiles is analyzed vertically and horizontally, with a resulting single index, which can be used to identify a spatial orientation of cracking. To determine the accurate CTI threshold values for longitudinal, transverse, and alligator cracks, 150 pavement images were captured with a digital video camera mounted on a sport-utility vehicle: 50 images for each of three types of cracking. These 150 images were analyzed automatically to compute the CTI values that correlate with crack types. To validate the CTI system, another 150 pavement images were captured. The CTI system identified 150 images as proper crack types with an 86% accuracy for alligator cracking, 92% accuracy for transverse cracking, and 94% accuracy for longitudinal cracking. The CTI system is further validated against images of block cracking and multiple cracks. The validation result against block cracking and multiple cracks indicates that the proposed CTI system in conjunction with UCI is robust and can be extended to identify block cracking and multiple cracks. The CTI method can be used to determine crack types from the digital images automatically without any human intervention.

scholarly journals The Relationship Between Foot and Pelvic Alignment While Standing

2015 ◽  
Vol 46 (1) ◽  
pp. 85-97 ◽  
Author(s):  
Sam Khamis ◽  
Gali Dar ◽  
Chava Peretz ◽  
Ziva Yizhar
Keyword(s):  
Internal Rotation ◽  
Pelvic Tilt ◽  
Cumulative Effect ◽  
Normal Function ◽  
Repeated Measure ◽  
Postural Adjustment ◽  
Motion Analysis System ◽  
Anterior Pelvic Tilt ◽  
Analysis System ◽  
The Relationship

AbstractA normal motion and segmental interrelationship has been determined as a significant factor in normal function. Yet, the relationship between distal segments and pelvic alignment needs further investigation. The aim of this study was to investigate the interrelationship between distal and proximal lower extremity segments while standing and during induced feet hyperpronation. Changes in alignment of the pelvis and lower extremities were measured at a gait laboratory using the VICON 612 computerized motion analysis system. Thirty-five healthy volunteer subjects were recruited. Four randomized repeated-measure standing modes were used: standing directly on the floor and then on three wedges angled at 10°, 15° and 20° to induce bilateral hyperpronation for 20 seconds. A significant (p<0.05) bi-variate relationship was found between the anterior pelvic tilt and thigh internal rotation, in all four standing positions (.41≤r≤.46, in all p<0.014). A combined effect of rotational alignment between segments and the cumulative effect of foot hyperpronation on pelvic tilt revealed that only the shank significantly affected pelvic alignment, acting as a mediator between a foot and a thigh with the thigh having a crude significant effect on the pelvis. When internal rotation of the shank occurs, calcaneal eversion couples with thigh internal rotation and anterior pelvic tilt. It can be concluded that in response to induced hyperpronation, the shank is a pivotal segment in postural adjustment.

scholarly journals Association between Serum Ferritin and Blood Lipids: Influence of Diabetes and hs-CRP Levels

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Lianlong Yu ◽  
Jingyi Yan ◽  
Qian Zhang ◽  
Hong Lin ◽  
Lichao Zhu ◽  
...  
Keyword(s):  
Linear Model ◽  
Serum Ferritin ◽  
Negative Correlation ◽  
Generalized Linear Model ◽  
Blood Lipids ◽  
Real Relationship ◽  
Positive Correlation ◽  
Hs Crp ◽  
Parsimonious Model ◽  
The Relationship

This study is aimed at exploring the relationship between serum ferritin and blood lipids and the influence of diabetes and different hs-CRP levels. A total of 8163 subjects were analyzed. Participators were classified according to serum ferritin, diabetes, and two hs-CRP levels. Blood lipids were determined using standardized methods and conditions. Except for HDL-C, there was a significant increase in blood lipids in the progressive ferritin group with normal hs-CRP levels (P<0.05). But HDL-C was just the opposite (P<0.0001). In nondiabetic patients, TG, TC, and LDL-C were significantly elevated in the progressive ferritin group (P<0.05). And, HDL-C was just the opposite (P<0.05). The generalized linear model and the parsimonious model showed that serum TG was positively correlated with ferritin, and LDL-C was negatively correlated with ferritin (P<0.05). But the correlation between LDL-C and ferritin was broken (P>0.05). After a sufficient adjustment, there was a positive correlation between serum TG and ferritin and a negative correlation between LDL-C and ferritin. Nonetheless, a negative correlation between LDL-C and ferritin is influenced by diabetes frailly. And, there was no change of relationship between lipids and ferritin in different hs-CRP levels. We found a real relationship between ferritin and lipids after sufficient adjustment for confounders.

scholarly journals The Relationship of the Basophil to Blood Histamine in Man

Blood ◽  
1955 ◽  
Vol 10 (2) ◽  
pp. 154-159 ◽  
Author(s):  
WILLIAM N. VALENTINE ◽  
JOHN S. LAWRENCE ◽  
MORTON LEE PEARCE ◽  
WILLIAM S. BECK
Keyword(s):  
Negative Correlation ◽  
The Other ◽  
Histamine Content ◽  
Cell Type ◽  
Chronic Granulocytic Leukemia ◽  
Blood Histamine ◽  
Relationship Of ◽  
The Relationship ◽  
Granulocytic Leukemia ◽  
Very High

Abstract Data are presented correlating 22 determinations of the histamine content of blood in patients with chronic granulocytic leukemia with (1) the basophils (2) the other myeloid granulocytes. Expressing the histamine in each case on the basis of the amount in 108 granulocytes, there is a readily evident positive correlation with the basophil percentage and a negative correlation with the percentage of other myeloid elements. This is strikingly apparent in instances where blood with a very high percentage of basophils was analyzed. The data indicate that in chronic granulocytic leukemia, the basophil is predominantly and, perhaps exclusively, responsible for the marked elevations in blood histamine. Inferentially, it appears probable that this cell type, though small in numbers, may be the principal carrier of histamine in non-leukemic blood.

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