scholarly journals Estimating Flood Inundation Depth Along the Arterial Road Based on the Rainfall Intensity

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Agus Suharyanto
Keyword(s):  
Rainfall Intensity ◽  
Flood Inundation ◽  
Simple Linear Regression ◽  
Inundation Depth ◽  
Arterial Road ◽  
Analysis System ◽  
Channel Bottom ◽  
Runoff Discharge ◽  
The Relationship ◽  
Level Profile

Abstract This study identifies the rainfall intensity that causes the flood along the arterial road connecting Malang to Surabaya, East Java, Indonesia, estimates flood occurrences based on the recorded rainfall data, and proposes the normalization of the side ditch to reduce flood occurrences. The Nakayasu synthetic unit hydrograph was used to analyze the runoff discharge, and the Hydrologic Engineering Center’s River Analysis System software was used to analyze the water level profile of the side ditch. The regression method was used to determine the relationship between the rainfall intensity and inundation depth along the arterial road. Analysis results show that floods occur if the rainfall intensity is ≥1.01 year return period. To estimate the flood inundation depth, simple linear regression was conducted herein. Furthermore, it was observed that flood occurrences can be avoided by normalizing the side ditch cross section with a fully rectangular shape having a channel bottom elevation equal to the existing elevation.

scholarly journals Is Hip Muscle Strength Associated with Dynamic Knee Valgus in a Healthy Adult Population? A Systematic Review

2021 ◽  
Vol 18 (14) ◽  
pp. 7669
Author(s):  
Ali Mohammed Alzahrani ◽  
Msaad Alzhrani ◽  
Saeed Nasser Alshahrani ◽  
Wael Alghamdi ◽  
Mazen Alqahtani ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Adult Population ◽  
Knee Valgus ◽  
Journal Articles ◽  
Hip Muscle ◽  
Hip Abductor ◽  
Hip Muscles ◽  
Analysis System ◽  
The Relationship ◽  
External Rotator

This study aimed to systematically review research investigating the association between hip muscle strength and dynamic knee valgus (DKV). Four databases (MEDLINE, PubMed, CINAHL, and SPORTDiscus) were searched for journal articles published from inception to October 2020. Seven studies investigating the association between hip muscle strength and DKV using a two-dimensional motion analysis system in healthy adults were included. The relationship between hip abductor muscle strength and DKV was negatively correlated in two studies, positively correlated in two studies, and not correlated in three studies. The DKV was associated with reduced hip extensor muscle strength in two studies and reduced hip external rotator muscle strength in two studies, while no correlation was found in three and five studies for each muscle group, respectively. The relationship between hip muscle strength, including abductors, extensors, and external rotators and DKV is conflicting. Considering the current literature limitations and variable methodological approaches used among studies, the clinical relevance of such findings should be interpreted cautiously. Therefore, future studies are recommended to measure the eccentric strength of hip muscles, resembling muscular movement during landing. Furthermore, high-demand and sufficiently challenging functional tasks revealing lower limb kinematic differences, such as cutting and jumping tasks, are recommended for measuring the DKV.

scholarly journals Flood Inundation Assessment in the Low-Lying River Basin Considering Extreme Rainfall Impacts and Topographic Vulnerability

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 896
Author(s):  
Thanh Thu Nguyen ◽  
Makoto Nakatsugawa ◽  
Tomohito J. Yamada ◽  
Tsuyoshi Hoshino
Keyword(s):  
River Basin ◽  
Extreme Rainfall ◽  
Flood Damage ◽  
Water Levels ◽  
Flood Inundation ◽  
Inundation Area ◽  
Inundation Depth ◽  
Study Results ◽  
Inundation Duration ◽  
Short Time

This study aims to evaluate the change in flood inundation in the Chitose River basin (CRB), a tributary of the Ishikari River, considering the extreme rainfall impacts and topographic vulnerability. The changing impacts were assessed using a large-ensemble rainfall dataset with a high resolution of 5 km (d4PDF) as input data for the rainfall–runoff–inundation (RRI) model. Additionally, the prediction of time differences between the peak discharge in the Chitose River and peak water levels at the confluence point intersecting the Ishikari River were improved compared to the previous study. Results indicate that due to climatic changes, extreme river floods are expected to increase by 21–24% in the Ishikari River basin (IRB), while flood inundation is expected to be severe and higher in the CRB, with increases of 24.5, 46.5, and 13.8% for the inundation area, inundation volume, and peak inundation depth, respectively. Flood inundation is likely to occur in the CRB downstream area with a frequency of 90–100%. Additionally, the inundation duration is expected to increase by 5–10 h here. Moreover, the short time difference (0–10 h) is predicted to increase significantly in the CRB. This study provides useful information for policymakers to mitigate flood damage in vulnerable areas.

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.

The Relationship between Consistency of Propulsive Cycles and Maximum Angular Velocity during Wheelchair Racing

2008 ◽  
Vol 24 (3) ◽  
pp. 280-287 ◽  
Author(s):  
Yong “Tai” Wang ◽  
Konstantinos Dino Vrongistinos ◽  
Dali Xu
Keyword(s):  
Angular Velocity ◽  
Upper Limb ◽  
Wheelchair Propulsion ◽  
Upper Arm ◽  
Wheelchair Athletes ◽  
Angular Velocities ◽  
Limb Kinematics ◽  
Analysis System ◽  
The Right ◽  
The Relationship

The purposes of this study were to examine the consistency of wheelchair athletes’ upper-limb kinematics in consecutive propulsive cycles and to investigate the relationship between the maximum angular velocities of the upper arm and forearm and the consistency of the upper-limb kinematical pattern. Eleven elite international wheelchair racers propelled their own chairs on a roller while performing maximum speeds during wheelchair propulsion. A Qualisys motion analysis system was used to film the wheelchair propulsive cycles. Six reflective markers placed on the right shoulder, elbow, wrist joints, metacarpal, wheel axis, and wheel were automatically digitized. The deviations in cycle time, upper-arm and forearm angles, and angular velocities among these propulsive cycles were analyzed. The results demonstrated that in the consecutive cycles of wheelchair propulsion the increased maximum angular velocity may lead to increased variability in the upper-limb angular kinematics. It is speculated that this increased variability may be important for the distribution of load on different upper-extremity muscles to avoid the fatigue during wheelchair racing.

scholarly journals HUBUNGAN PERSEPSI TENTANG PROFESI FISIOTERAPI DENGAN MOTIVASI BELAJAR MAHASISWA AKADEMI FISIOTERAPI UKI

2018 ◽  
Vol 10 (3) ◽  
pp. 226
Author(s):  
Maksimus Bisa
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Correlation Analysis ◽  
Correlation Coefficient ◽  
Linear Regression Analysis ◽  
Motivation To Learn ◽  
Simple Linear Regression ◽  
Level 1 ◽  
Relationship Of ◽  
The Relationship

ABSTRACTThis study is descriptive analitik, aims to describe the relationship of perceptions about the physiotherapy profession with the motivation to learn students of the Academy of Physiotherapy UKI. Data collection through questionnaires to students of Physiotherapy Academy UKI level 1, 2, and 3 with a sample of 53 students, then give a score of each statement of questionnaire.The result of correlation analysis shows that p = 0,584> α (0,05) ho is accepted, so there is no significant relationship between the two variables. To measure the closeness and intensity of the relationship between the two variables, test of correlation coefficient and simple linear regression. The result of correlation coefficient test (r) obtained by -0,077, lies below the value of -0.30 (very weak) thus can be said there is no relation between perception about physiotherapy profession with motivation learn student Akfis UKI. Result of linear regression analysis obtained equation: Y = 73,52 + (-0,088) X. This means that every 1 point decrease of perception value will influence motivation value equal to 0,088 times.Keywords: Perception, motivation, physiotherapy profession, and learning achievement. ABSTRAKPenelitian ini bersifat deskriptif analitik, bertujuan untuk mendeskripsikan hubungan persepsi tentang profesi fisioterapi dengan motivasi belajar siswa Akademi Fisioterapi UKI. Pengumpulan data melalui kuesioner kepada siswa Fisioterapi Academy UKI tingkat 1, 2, dan 3 dengan sampel sebanyak 53 siswa, kemudian memberikan skor masing-masing kuesioner pernyataan. Hasil analisis korelasi menunjukkan bahwa p = 0,584> α (0,05) ho diterima, sehingga tidak ada hubungan yang signifikan antara kedua variabel tersebut. Untuk mengukur kedekatan dan intensitas hubungan antara kedua variabel tersebut, uji koefisien korelasi dan regresi linier sederhana. Hasil uji koefisien korelasi (r) diperoleh sebesar -0,077, berada di bawah nilai -0,30 (sangat lemah) sehingga dapat dikatakan tidak ada hubungan antara persepsi tentang profesi fisioterapi dengan motivasi belajar siswa Akfis UKI. Hasil analisis regresi linier diperoleh persamaan: Y = 73,52 + (-0,088) X. Artinya setiap 1 titik penurunan nilai persepsi akan mempengaruhi nilai motivasi sebesar 0,088 kali.Kata kunci: Persepsi, motivasi, profesi fisioterapi, dan prestasi belajar.

scholarly journals DAMPAK SISTEM PEMBAYARAN SEWA KENDARAAN TRUCKING TERHADAP KEGIATAN OPERASIONAL PERUM DAMRI LOGISTIK

LOGISTIK ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 55-67
Author(s):  
Sylvira Ananda Azwar ◽  
Kencana Verawati ◽  
Meliana Safitri ◽  
Anthony Costa
Keyword(s):  
Linear Regression ◽  
Data Collection ◽  
Relevant Information ◽  
Simple Linear Regression ◽  
Statistical Data Analysis ◽  
Regression Test ◽  
Correlation Tests ◽  
Operational Activities ◽  
The Relationship ◽  
Regression Tests

This Research aims to find out the causes and impacts caused by delays in payment of trucking vehicle rentals at Perum DAMRI Logistik, especially on the company's operational activities. Data collection was carried out in 3 divisions in Perum DAMRI Logistics, namely the operational division, the financial division and the engineering division. Data collection was done by interviewing the staff on duty and making observations and observations while in the field. The data obtained is then analyzed and elaborated so as to form a relevant information. In addition to describing the results of interviews, there are some data that are processed using statistical analysis using correlation tests and simple linear regression tests. The statistical data analysis was used to determine the relationship between vehicle rental payments and operational activities and to find out what percentage of the effect was obtained from the two variables. The results of the correlation test using SPSS statistic 25 which shows that vehicle rental payments and operational activities have a positive relationship, the results of a simple linear regression test get the equation Y = 200534,257 + 0.659X. The value of R square is 0.559.

scholarly journals Ecossistemas de inovação das universidades federais brasileiras: um mapeamento dos núcleos de inovação tecnológica, incubadoras de empresas de base tecnológica e parques tecnológicos

2019 ◽  
Vol 7 (3) ◽  
pp. 341-358
Author(s):  
Rafael Morais Pereira ◽  
Humberto Rodrigues Marques ◽  
Rodrigo Gava
Keyword(s):  
Technological Innovation ◽  
Linear Regression Analysis ◽  
Secondary Data ◽  
Innovation Systems ◽  
Simple Linear Regression ◽  
Technological Structure ◽  
Technology Parks ◽  
Relationship Of ◽  
The Relationship

Technological innovation as an engine for development requires a structural apparatus to its consolidation, reinforcing the approach of innovation systems, with emphasis on the role of universities. Therefore, considering that associated with this potential are present several innovative elements, such as the Technological Innovation Centers (NITs), the incubators of technology-based companies (IEBTs) and Technology Parks (ParqTecs), and given the lack of systematization National these instruments, the ultimate goal of this study was to analyze the environment for innovation in Brazilian federal universities, through the mapping of NITs, the IEBTs and ParqTecs associated with these institutions, further outlining the relationship of these instruments with technological variables (technological scholarships and patents). We used a qualitative and quantitative approach, descriptive nature, with collection of secondary data on institutional sites of universities and the adoption of simple linear regression analysis. The results realized all 63 Brazilian federal universities and revealed that the most widespread instrument between universities are the NITs, since its presence in 86% of the analyzed institutions. Have business incubators, idealized to strengthen interaction in innovation systems, are associated with 68% of universities, enabling regional development contexts. In relation to technology parks, it was found that, depending on the expenditure required for its implementation, only 26 universities are integrated into ParqTecs. The contributions of this study are concentrated in addition to the mapping done in highlighting the distinctions between the Brazilian regions in terms of scientific and technological structure and the importance of innovation ecosystems.

scholarly journals PENGARUH REVIU RKA-K/L OLEH APIP TERHADAP EFISIENSI ALOKASI ANGGARAN KEMENTERIAN AGAMA

2019 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
Edy Effendi ◽  
Muhammad Imron
Keyword(s):  
Linear Regression ◽  
Simple Linear Regression ◽  
Independent Variables ◽  
Dependent Variables ◽  
Before And After ◽  
The Impact ◽  
The Relationship ◽  
Positive Effect

Research on the role of the APIP review of the Ministry/agency Work Plan and Budget document to determine the impact on the efficiency of ministry/agency spending (case study at the Ministry of Religion). The method used in this study uses simple linear regression with dummy. The use of linear regression is used to examine the relationship between independent variables (certain types of expenditure) and dependent variables (total expenditure). Whereas, dummy is used to find out before and after the APIP review is done. Throughout the author's search, this research has never been done. Based on the results of linear regression obtained, the APIP review significantly had a positive effect on official travel expenditure and honorarium but did not significantly affect building spending and equipment. Abstrak   Penelitian atas peran reviu APIP atas dokumen Rencana Kerja dan Anggaran Kementerian Negara/Lembaga untuk mengetahui dampaknya terhadap efisiensi belanja kementerian/lembaga (studi kasus pada Kementerian Agama). Metode yang digunakan dalam penelitian ini menggunakan regresi linier sederhana dengan dummy. Penggunaan regresi liner digunakan untuk meneliti hubungan antara variable independen (jenis belanja tertentu) dan variable dependen (total belanja). Sedangkan, dummy digunakan untuk mengetahui sebelum dan setelah reviu APIP dilakukan. Sepanjang penelusuran penulis, penelitian ini belum pernah dilakukan. Berdasarkan hasil regresi linier diperoleh, reviu APIP signifikan berpengaruh positif terhadap  belanja perjalanan dinas dan honorarium tetapi tidak signifikan berbengaruh terhadap belanja gedung dan alat.

scholarly journals Pemodelan Prediksi Banjir Kota Medan Dengan Menggunakan Sistem Informasi Geografis

2019 ◽  
Vol 8 (1) ◽  
pp. 19
Author(s):  
M S Roganda
Keyword(s):  
Rainfall Intensity ◽  
Flood Hazard ◽  
Middle Part ◽  
Flood Inundation ◽  
Flood Modeling ◽  
Analysis Technique ◽  
Study Techniques ◽  
The Impact ◽  
The City

This study aims to (1) Determine the results of inundation in Medan based on the scenario of rainfall intensity <60 mm / day and> 60 mm / day. (2) Determine the level of flood hazard based on flood inundation scenarios of rainfall intensity <60 mm / day and> 60 mm / day conducted in Medan City. (3) Determine the impact caused by the flooding based on interpretation techniques from the results of flood modeling conducted in Medan City. Data collection techniques used in this study are documentary study techniques. The data analysis technique was carried out with three stages, including (1) Determining the overflow results. (2) Determine the classification of flood hazard levels. (3) Identifying areas that affect flood hazard areas per district. The results in this study are (1) based on the scenario of rainfall intensity <60 mm / day, there is no inundation flooding, whereas based on the scenario of rainfall intensity> 60 mm / day shows several points of flood inundation especially in the northern part of Medan City. (2) flood hazard based on flood inundation scenario results in rainfall intensity <60 mm / day does not pose any danger at all whereas flood hazard based on flood inundation results rainfall intensity scenario> 60 mm / day shows that in the northern part there are two dominant classes namely class high and low, in the middle part of the city the dominant class terrain is medium and in the southern part of Medan City the dominance by medium and low classes. (3) Based on interpretation techniques carried out on the Flood Impact Map Based on Districts in Medan, it can be seen that several districts in Medan have several flood hazard classes such as low, medium, and high.Keywords: Medan City, Rain, Flood Modeling AbstrakPenelitian ini bertujuan untuk (1) Mengetahui hasil banjir genangan di Kota Medan berdasarkan skenario intensitas curah hujan < 60 mm/hari dan > 60 mm/hari. (2) Mengetahui tingkat bahaya banjir berdasarkan hasil banjir genangan skenario intensitas curah hujan < 60 mm/hari dan > 60 mm/hari yang dilakukan di Kota Medan. (3) Mengetahui dampak yang disebabkan banjir berdasarkan teknik interpretasi dari hasil pemodelan banjir yang dilakukan di Kota Medan. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah teknik studi dokumenter. Teknik analisis data dilakukan dengan tiga tahapan diantaranya (1) Menentukan hasil luapan. (2) Menentukan klasifikasi tingkat bahaya banjir. (3) Mengidentifikasi wilayah-wilayah yang berdampak ke daerah bahaya banjir per kecamatan. Hasil dalam penelitian ini adalah (1) berdasarkan skenario intensitas curah hujan < 60 mm/hari tidak terjadi banjir genangan sedangkan berdasarkan skenario intensitas curah hujan > 60 mm/hari menunjukkan beberapa titik terjadi genangan banjir terutama di bagian utara Kota Medan. (2) bahaya banjir berdasarkan hasil banjir genangan skenario intensitas curah hujan < 60 mm/hari  tidak menimbulkan bahaya sama sekali sedangkan bahaya banjir berdasarkan hasil banjir genangan skenario intensitas curah hujan > 60 mm/hari  memperlihatkan  pada bagian utara ada dua kelas yang dominan yaitu kelas tinggi dan rendah, pada bagian tengah kota medan kelas yang dominan adalah sedang dan di bagian selatan Kota Medan dominasi oleh kelas sedang dan rendah. (3) Berdasarkan teknik interpretasi yang dilakukan pada Peta Dampak Banjir Berdasarkan Kecamatan Di Kota Medan terlihat bahwa beberapa kecamatan di Kota Medan memiliki beberapa kelas bahaya banjir seperti rendah, sedang dan tinggi.Kata Kunci : Kota Medan, Hujan, Pemodelan Banjir

scholarly journals Concentration of Banking Sector and Loan Markups in Short Term: An Example from Poland

2014 ◽  
Vol 5 (2) ◽  
pp. 26-44
Author(s):  
Krysztof Drachal
Keyword(s):  
Monetary Policy ◽  
Banking Sector ◽  
Mortgage Market ◽  
Future Research ◽  
Simple Linear Regression ◽  
Short Term ◽  
Monthly Data ◽  
Regression Techniques ◽  
The Difference ◽  
The Relationship

The aim of this paper is to present an analysis of the relationship between concentration of the banking sector and banks' markups on offered loans. The markup is understood as the difference between the rate offered by banks and the reference rate fixed by the Monetary Policy Council. The period between 2009 and 2013 was analyzed. Monthly data from the Polish banking sector were considered. This paper also consists of the literature review, which focuses on the mortgage market. The methodology used for the analysis is based mainly on simple linear regression techniques. It is found that such methods are not sufficient to give conclusive answers. Therefore additional future research is proposed.

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