scholarly journals Stage-discharge estimation in compound open channels with composite roughness

2019 ◽  
Vol 50 (3) ◽  
pp. 809-824 ◽  
Author(s):  
Amirreza Kavousizadeh ◽  
Mahmoud F. Maghrebi ◽  
Arash Ahmadi
Keyword(s):  
Flood Control ◽  
Cross Sectional ◽  
Compound Channels ◽  
New Approach ◽  
Rating Curves ◽  
The Difference ◽  
Discharge Estimation ◽  
Natural Rivers ◽  
Discharge Curves

Abstract Determination of stage-discharge relationships in natural rivers is extremely important in flood control projects. The importance of rating curves in rivers and the difficulty of its establishment show the need for simpler and more precise methods. Determination of rating curves in compound channels, especially with composite roughness, has proved to be difficult because of significant variations in hydraulic parameters from the main channel to the floodplains. In the current paper, a new approach that is based on the concept of the cross-sectional isovel contours is introduced for estimation of the stage-discharge curves in compound channels. The multivariate Newton's method is applied to the difference between the observed and estimated data to optimize the exponent values of the governing parameters. The proposed method is verified by comparing predictions obtained by using it with some experimental datasets. For compound channels with composite roughness, the stage-discharge curves obtained by the proposed method are more accurate than those obtained by using available conventional methods.

scholarly journals Estimation of accumulated degree hours-based post-mortem intervals in mammalian and avian model

2021 ◽  
Vol 9 (1-2) ◽  
pp. 49-58
Author(s):  
Md Golam Mostafa ◽  
Mst Shahanaz Parvin Shobha ◽  
Anjuman Ara ◽  
Saadia Ahmad
Keyword(s):  
Developmental Time ◽  
Gallus Domesticus ◽  
Post Mortem ◽  
Gallus Gallus Domesticus ◽  
Related Factors ◽  
New Approach ◽  
Post Mortem Interval ◽  
The Difference ◽  
Felis Chaus

The post-mortem interval (PMI) of a jungle cat (Felis chaus) and a chicken (Gallus gallus domesticus) were estimated as a mammalian and an avian model, respectively. The estimations were performed adopting the Accumulated Degree Hours (ADH) method using blowfly, Lucilia sericata. The required developmental time from oviposition to the 3rd instar larvae of the blowfly species was considered for the determination of PMI in each of the study. The results revealed that the calculated PMI of jungle cat was 5.29 days. On the other hand, the estimated PMI of the chicken was 2.83 days. The difference of these two PMIs in two different models might be due to the variation of temperatures and other related factors in the development of the larvae of the blowfly species. This study might offer a new approach in the medico-legal investigations with a view to resolving homicide as well as other suspected death of animals including wildlife in Bangladesh. Jahangirnagar University J. Biol. Sci. 9(1 & 2): 49-58, 2020 (June & December)

scholarly journals Establishment of a new relationship between posed smile width and lower facial height: A cross-sectional study

2015 ◽  
Vol 09 (03) ◽  
pp. 394-399 ◽  
Author(s):  
Aby Abraham ◽  
Jinu George ◽  
Elbe Peter ◽  
Koshi Philip ◽  
Rajesh Chankramath ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Facial Height ◽  
The Face ◽  
Facial Proportions ◽  
Males And Females ◽  
The Mean ◽  
The Difference

ABSTRACT Objective: The present study is intended to add a new parameter that would be useful in orthodontic clinical evaluation, treatment planning, and determination of vertical dimension (at occlusion). Materials and Methods: Standardized videographic recording of 79 subjects during posed smile was captured. Each video was then cut into 30 photos using the free studio software. The widest commissure-to-commissure posed smile frame (posed smile width [SW]) was selected as one of 10 or more frames showing an identical smile. Lower third of the face is measured from subnasale to soft tissue menton using a digital vernier caliper. Two values were then compared. Ratio between lower facial height and posed SW was calculated. Results: The co-relation between smiling width and lower facial height was found to be statistically significant (P < 0.01). The ratio of lower facial height and smiling width was calculated as 1.0016 with a standard deviation (SD) = 0.04 in males and 1.0301 with an SD = 0.07 in females. The difference between the mean lower facial height in males and females was statistically significant with a t = 10.231 and P = 0.000. The difference between the mean smiling width in males and females was also statistically significant with a t = 5.653 and P = 0.000. Conclusion: In class I subjects with pleasing appearance, normal facial proportions, normal overjet and overbite, and average Frankfort mandibular angle, the lower facial height (subnasale to soft tissue menton) is equal to posed SW.

Determinants of National Gross Domestic Product among Disaggregated Development Expenditure Schemes: An Experience of Indian Economy during 1990-91 to 2004-05

2012 ◽  
Vol 8 (3) ◽  
pp. 225-231
Author(s):  
Saiyedali Ahmedmiya Saiyed
Keyword(s):  
Gross Domestic Product ◽  
Flood Control ◽  
Positive Influence ◽  
Domestic Product ◽  
Multivariate Regression Model ◽  
Cross Sectional ◽  
Indian Economy ◽  
Development Expenditure ◽  
Sectional Analysis

This paper is a study which examines what are the determinants of National Gross Domestic Product. In India various disaggregated development expenditure schemes undertaken during period of 1990-91 to 2004-05 have a significant influence on determination of National Gross Domestic Product. Here association between cross-sectional disaggregated development expenditure schemes and year-wise number of National Gross Domestic Product in India is estimated by a Multivariate Regression Model Analysis. Cross-sectional analysis shows significant association between year-wise number of gross domestic product and disaggregated development expenditure schemes in terms of Agriculture and Allied Activities, Rural Development, Irrigation and Flood Control, Energy, Industries and Minerals, Transport, Education, Health Including Medical, and Others Services, included together jointly in the model, have positive influence on the determination of Gross Domestic Product  in the Indian economy.

A New Approach for Quantitative Evaluation of Bending Components

2014 ◽  
Vol 622-623 ◽  
pp. 1095-1102 ◽  
Author(s):  
Bernd Engel ◽  
Christopher Kuhnhen ◽  
Christian Mathes ◽  
Christopher Heftrich ◽  
Peter Frohn ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Quality Criteria ◽  
Wall Thickening ◽  
Cross Sectional ◽  
New Approach ◽  
Wall Thinning ◽  
Geometric Deviations

During the bending of tubes, specific geometric deviations from the desired shape geometry occur. These deformations comprise cross-sectional deformation, wall-thinning of the outer arc and wall-thickening of the inner arc. During the bending of parts with small bend factors, geometric deviations on the inner arc in form of waves and wrinkles may arise as other typical quality criteria. A quantitative evaluation of those deviations has yet to be defined. Currently, only an instruction for measuring the height of the wrinkles at the inner arc according to DIN EN 13480-4 is known. In this standard, only the two highest wrinkles and the valley in between are included. The characteristics of the wrinkle, especially the flank angle and the rise of deformation are disregarded, although they are responsible for the failure of the bent part. Tool damages can also occur. A development of an evaluation factor to assess deformations in the bow area for bent parts is presented in this paper. In addition, it will be possible to quantify geometric deviations in the bow area. By using the newly developed evaluation factor for geometrical deformations in the bow area, the determination of the quality of the bent part should become more reproducible.

scholarly journals Determination of lead concentration in breast milk and blood of lactanting women in an interior city of Brasil

2013 ◽  
Vol 06 (03) ◽  
pp. 095-100 ◽  
Author(s):  
Marco Túlio Soares Andrade ◽  
Luiz Antonio Del Ciampo ◽  
Ieda Regina Lopes Del Ciampo ◽  
Ivan Savioli Ferraz ◽  
Rubens Garcia Ricco ◽  
...  
Keyword(s):  
Breast Milk ◽  
Inductively Coupled Plasma ◽  
Lead Concentration ◽  
Blood Lead ◽  
Lead Contamination ◽  
Cross Sectional ◽  
Inductively Coupled ◽  
Lead Levels ◽  
The Difference

ABSTRACT Background: breast milk offers numerous advantages biological and emotional. However, in some situations, can transfer harmful elements for the health of infants. Objective: to determine lead levels in the blood and milk of mothers whose children frequent a primary mother-child health care. Methods: a cross-sectional, observational and descriptive study of 70 healthy women who were breast-feeding babies younger than six months during 01/04/2011 to 30/09/2011. Lead determination was performed by mass spectrometry with inductively coupled plasma. A linear regression model was adjusted to determine the association between lead concentrations in maternal milk and blood. The estimated values of the difference between means and their 95% confidence intervals were obtained. Results: mean lead concentration in milk was 1.462 ng/mL and blood lead concentration was 1.801 μg/dL. Conclusions: human milk is not a source of contamination for the babies in this area. However, more studies are needed in other regions of the country in view of the growing evidence of foci of lead contamination, which may represent an occult risk for the population.

scholarly journals Acute kidney injury in asphyxiated neonates

2013 ◽  
Vol 53 (4) ◽  
pp. 232
Author(s):  
Roy Amardiyanto ◽  
Partini Pudjiastuti Trihono ◽  
Lily Rundjan ◽  
Hardiono D. Pusponegoro
Keyword(s):  
Acute Kidney Injury ◽  
Renal Involvement ◽  
Kidney Injury ◽  
Acute Kidney Injury Network ◽  
Cross Sectional ◽  
Neonatal Asphyxia ◽  
Urine Creatinine ◽  
The Difference ◽  
Severe Degree

Background Asphyxia neonatorum may result in multiorgandysfunction including renal involvement. There is no consensuson the determination of acute kidney injury (AKI) in neonatesmaking establishment of the diagnosis and its managementbecomes difficult. The Acute Kidney Injury Network (AKIN)recommends AKI criteria based on increased serum creatininelevel and reduced urine output.Objectives To identify the prevalence of AKI in asphyxiatedneonates using the AKIN criteria, to compare the difference ofAKI stages, and the glomerular filtration rates (GFR) betweenmoderate and severe asphyxia.Methods This was a cross-sectional analytical study conductedbetween July 2012 and January 2013. Subjects were all asphyxiatedneonates (Apgar score < 7 at fifth minute) with gestational age of>35 weeks delivered and hospitalized in Cipto MangunkusumoHospital and Koja District Hospital, Jakarta, Indonesia.Glomerular filtration rate was calculated using the componentsof urine creatinine, serum creatinine, and urine output; whileAKI stages were determined according to AKIN criteria. Urinaryoutput was measured via urethral catheterization.Results Of 94 subjects, there were 70 neonates with moderateand 24 neonates with severe asphyxia, with the prevalence of AKIwas 63%. Twenty one out of 24 neonates with severe asphyxiaexperienced AKI, while neonates with moderate asphyxia whoexperienced AKI was 38 out of 70 subjects (54%). Two third ofneonates with severe asphyxia who experienced AKI had stage3 of AKI. More severe AKI stages and lower median GFR werefound in neonates with severe compared to moderate asphyxia(P<0.001) .Conclusion The prevalence of AKI in neonatal asphyxia is high(63%). The more severe degree of neonatal asphyxia, the moresevere AKI stage and the lower median GFR.

Parastemal cross-sectional echocardiographic determination of aortic arch situs: A new approach

1985 ◽  
Vol 55 (9) ◽  
pp. 1236-1238 ◽  
Author(s):  
Savitri Shrivastava ◽  
James M. Berry ◽  
Stanley Einzig ◽  
John L. Bass
Keyword(s):  
Aortic Arch ◽  
Cross Sectional ◽  
New Approach

scholarly journals P1199THE IMPORTANCE OF DETERMINING ALPHA-2-MACROGLOBULIN CONCENTRATITON IN PATIENTS ON PERITONEAL DIALYSIS

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Marko Baralic ◽  
Ana Bontic ◽  
Jelena Pavlovic ◽  
Mirjana Lausevic ◽  
Selena Gajic ◽  
...  
Keyword(s):  
Peritoneal Dialysis ◽  
Covalent Binding ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Simple Method ◽  
Partial Denaturation ◽  
The Difference ◽  
And Function ◽  
Relationship Of

Abstract Background and Aims To determine the concentration of Alpha-2-macroglobulin (α2M) and its activity in patients treated with peritoneal dialysis (PD) and healthy subjects (H). Method a cross-sectional study included 50 PD and 30 H, in which the concentration of active α2M molecules was determined. The measurement is based on covalent binding of α2M and trypsin and zymography with gelatin incorporated into the electrophoretic gel. Results The intensity of proteolytic bands seen with native α2M was analyzed in relation to the concentration of α2M in patients with PD with less and / or more than three peritonitis. Linear dependence was only visible in the case of the upper range, which originates from the intact α2M-trypsin complex. The highest coefficient of variation is calculated for the smallest α2M concentration (4.2%). The signal intensities originating from α2M (H) were higher compared to PD, with the PD group being lower in patients with higher peritonitis, and the difference was more pronounced as concentration increased, resulting in a lower slope of dependence. The proposed method can reliably measure the amount of α2M originating in a group H, while the quantification of α2M in PD groups that may have structurally altered α2M can be seen more for condition estimation than for accurate measurements. The zymographic test in this experiment allows us to investigate the relationship of the concentration, structure and function of α2M in different pathological conditions, as well as in the presence of modifying agents that can accompany them. Conclusion A simple method for the determination of α2M concentration and function by zymography has been developed, which can be used to examine residual α2M activity after partial denaturation or structural modification due to disease.

scholarly journals Sexual Dimorphism in Alar Length and Auricular Index of Sacrum

2015 ◽  
Vol 12 (1) ◽  
pp. 17-21
Author(s):  
AHM Mostafa Kamal ◽  
Shamim Ara ◽  
Shahanaz Begum ◽  
Md Mesbahul Hoque ◽  
Khadeza Khatun
Keyword(s):  
Sexual Dimorphism ◽  
Function Analysis ◽  
Mean Value ◽  
Cross Sectional ◽  
Male And Female ◽  
Medical College ◽  
Orthopedic Surgeons ◽  
The Mean ◽  
The Difference

Context : It has long been customary among anatomists, anthropologists and forensic experts to judge the sex of the skeletal material by non-metric observations. Afterward the study of sexual divergence has been based upon actual measurements in different bones. The study in relation to metrical data on bone is very few in our country. The study was planned to observe the differences of sacra between male and female in respect to measurement of alar length and auricular index of sacrum. The findings of this study might be useful in providing morphometrical data that can be used by anatomists, forensic experts, anthropologists, orthopedic surgeons and neurologists for proper initiative in their respective fields. Materials and Methods: A cross-sectional, analytical type of study was performed in the department of Anatomy, Dhaka Medical College, Dhaka from January 2011 to December 2011. A total of 172 (one hundred seventy two) adult human dry sacra of unknown sex was assessed. The study samples were distributed in male and female sex groups by discriminant function analysis. All the samples were studied morphologically. Length of ala and auricular surface were measured with the help of digital slide calipers. Results: The mean length value of ala was greater in female than male (P<0.001). The difference between the mean value of alar index in male and female was significant (P >0.05). The mean value of auricular index was higher in male than female and the difference was statically significant (P<0.001). Conclusion: The sacrum can be used for sexual dimorphism as is usual in anthropological work. The knowledge of alar length and auricular index of sacrum is essential in medico-legal practice for sex determination of an individual. DOI: http://dx.doi.org/10.3329/bja.v12i1.22613 Bangladesh Journal of Anatomy, January 2014, Vol. 12 No. 1 pp 17-21

Gender determination of caucasoid hair using image analysis

1993 ◽  
Vol 51 ◽  
pp. 216-217
Author(s):  
T.B. Ball ◽  
W.M. Hess
Keyword(s):  
Image Analysis ◽  
Cross Sections ◽  
Scalp Hair ◽  
The Body ◽  
Equivalent Diameter ◽  
Cross Sectional ◽  
Hair Samples ◽  
Length Width ◽  
Morphological Differences

It has been demonstrated that cross sections of bundles of hair can be effectively studied using image analysis. These studies can help to elucidate morphological differences of hair from one region of the body to another. The purpose of the present investigation was to use image analysis to determine whether morphological differences could be demonstrated between male and female human Caucasian terminal scalp hair.Hair samples were taken from the back of the head from 18 caucasoid males and 13 caucasoid females (Figs. 1-2). Bundles of 50 hairs were processed for cross-sectional examination and then analyzed using Prism Image Analysis software on a Macintosh llci computer. Twenty morphological parameters of size and shape were evaluated for each hair cross-section. The size parameters evaluated were area, convex area, perimeter, convex perimeter, length, breadth, fiber length, width, equivalent diameter, and inscribed radius. The shape parameters considered were formfactor, roundness, convexity, solidity, compactness, aspect ratio, elongation, curl, and fractal dimension.

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