avatar
Oğuz Şimşek Assoc. Prof. Dr. HARRAN ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ
Publication 28 Review 17 CrossRef Cited 44 TR Dizin Cited 57
28 Publication
17 Review
44 CrossRef Cited
57 TR Dizin Cited
0000-0001-6324-0229

Research Fields

Engineering Fluid Mechanics and Thermal Engineering Turbulent Flows Hydromechanics Water Resources Engineering Numerical Modelling and Mechanical Characterisation Hydrology

Institution

HARRAN ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ

Popular Publications

Hidrolojik Kuraklık Değerlendirmesi: Murat Nehri-Palu Örneği
Authors: Veysel Gümüş , Mustafa Semih Yıldız, Oğuz Şimşek
Published: 2018 , Harran University Journal of Engineering
DOI: -
CITED 0 FAVORITE 1 TOTAL DOWNLOAD COUNT 1376

0

1

1376

Determining the Effect of Computational Grid Properties on Numerical Model Results
Authors: Oğuz Şimşek , Hüseyin İşlek , M. Sami Aköz
Published: 2020 , Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
DOI: 10.21605/cukurovaummfd.764907
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 724

1

1

724

Trend Analysis of Historical Drought During 1929-2016 in Diyarbakır Station with Innovative Şen Method
Authors: Veysel Gümüş , Latif Doğan Dinsever , Oğuz Şimşek
Published: 2021 , Journal of Natural Hazards and Environment
DOI: 10.21324/dacd.884682
CITED 5 FAVORITE 1 TOTAL DOWNLOAD COUNT 1448

5

1

1448

Estimation of Solar Radiation in Adıyaman and Gaziantep Stations Using Support Vector Machines
Authors: Latif Doğan Dinsever , Veysel Gümüş , Oğuz Şimşek , Yavuz Avşaroğlu , Mehmet Kuş
Published: 2021 , Bilecik Seyh Edebali University Journal of Science
DOI: 10.35193/bseufbd.904393
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 519

1

1

519

Probabilistic Meteorological Drought Analysis: An Application in the Lake District
Authors: Ali Demir Keskiner , Oğuz Şimşek
Published: 2023 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufenbed.1213855
CITED 4 FAVORITE 1 TOTAL DOWNLOAD COUNT 626

4

1

626

Publications

Comparative Investigation of the Effects of Irrigation Ponds on Climate in Agriculture Using Satellite Imagery and Meteorological Data
Authors: Abdurahman Yasin Yiğit , Oğuz Şimşek , Halil İbrahim Şenol
Published: 2024 , Turkish Journal of Remote Sensing
DOI: 10.51489/tuzal.1551019
FAVORITE 0 TOTAL DOWNLOAD COUNT 309

0

309

Long-term (1969-2020) Meteorological Drought Analysis of the Çoruh Basin Using the SPI Method
Authors: Oğuz Şimşek , Nazire Göksu Soydan Oksal , Elif Miraç Uncu , Veysel Gümüş , Mehmet Şeker
Published: 2024 , Journal of Polytechnic
DOI: 10.2339/politeknik.1295259
FAVORITE 1 TOTAL DOWNLOAD COUNT 797

1

797

ASSESSMENT OF THE EFFECTS OF ATMOSPHERIC OSCILLATIONS ON CLIMATE CHANGE: THE EXAMPLE OF HATAY PROVINCE
Authors: Emir Cengiz Durgun , Utku Zeybekoğlu , Oğuz Şimşek
Published: 2024 , Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi
DOI: 10.54365/adyumbd.1482163
FAVORITE 0 TOTAL DOWNLOAD COUNT 335

0

335

Probabilistic Meteorological Drought Analysis: An Application in the Lake District
Authors: Ali Demir Keskiner , Oğuz Şimşek
Published: 2023 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufenbed.1213855
FAVORITE 1 TOTAL DOWNLOAD COUNT 626

1

626

Assessing the Monthly Total Rainfall Trends at Artvin and Rize Stations using Different Methods
Authors: Veysel Gümüş , Oğuz Şimşek , Muhammed Kürşad Açar
Published: 2022 , Harran University Journal of Engineering
DOI: 10.46578/humder.1207593
FAVORITE 0 TOTAL DOWNLOAD COUNT 924

0

924

Estimation of Solar Radiation in Adıyaman and Gaziantep Stations Using Support Vector Machines
Authors: Latif Doğan Dinsever , Veysel Gümüş , Oğuz Şimşek , Yavuz Avşaroğlu , Mehmet Kuş
Published: 2021 , Bilecik Seyh Edebali University Journal of Science
DOI: 10.35193/bseufbd.904393
FAVORITE 1 TOTAL DOWNLOAD COUNT 519

1

519

Estimation of Monthly Pan Evaporation of Adıyaman and Diyarbakir Stations with Artificial Intelligence Methods
Authors: Veysel Gümüş , Yunus Yeşiltaş , Oğuz Şimşek
Published: 2021 , Turkish Journal of Nature and Science
DOI: 10.46810/tdfd.893630
FAVORITE 0 TOTAL DOWNLOAD COUNT 710

0

710

FARKLI BATIKLIK ORANLARINA SAHİP BATIK HİDROLİK SIÇRAMANIN SAYISAL MODELLEMESİ
Authors: Oğuz Şimşek , Mehmet Kösen , Veysel Gümüş
Published: 2021 , Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi
DOI: 10.54365/adyumbd.987338
FAVORITE 0 TOTAL DOWNLOAD COUNT 616

0

616

Numerical Modeling of Dam Break on Dry Bed
Authors: Oğuz Şimşek , Hüseyin İşlek , Veysel Gümüş
Published: 2021 , Duzce University Journal of Science and Technology
DOI: 10.29130/dubited.897718
FAVORITE 0 TOTAL DOWNLOAD COUNT 461

0

461

Trend analysis of monthly total pan evaporation data of Southeast Anatolia Region with Mann-Kendall Test and Innovative Sen Method
Authors: Yavuz Avşaroğlu , Veysel Gümüş , Oğuz Şimşek , Latif Doğan Dinsever , Mehmet Kuş
Published: 2021 , Gümüşhane University Journal of Science and Technology
DOI: 10.17714/gumusfenbil.908615
FAVORITE 0 TOTAL DOWNLOAD COUNT 947

0

947

Estimation of Discharge Coefficient of the Trapezoidal Broad Crested Weir Flow Using Support Vector Machines
Authors: Oğuz Şimşek , Veysel Gümüş , Abdulkadir Özlük
Published: 2021 , Gazi University Journal of Science Part C: Design and Technology
DOI: 10.29109/gujsc.930379
FAVORITE 0 TOTAL DOWNLOAD COUNT 543

0

543

Estimation of the Roller Length of Submerged Hydraulic Jumps using Artificial Intelligence Methods
Authors: Veysel Gümüş , İbrahim Mahmut Yoluk, Oğuz Şimşek , Göksu Soydan
Published: 2021 , Konya Journal of Engineering Sciences
DOI: 10.36306/konjes.879666
FAVORITE 0 TOTAL DOWNLOAD COUNT 553

0

553

Trend Analysis of Historical Drought During 1929-2016 in Diyarbakır Station with Innovative Şen Method
Authors: Veysel Gümüş , Latif Doğan Dinsever , Oğuz Şimşek
Published: 2021 , Journal of Natural Hazards and Environment
DOI: 10.21324/dacd.884682
FAVORITE 1 TOTAL DOWNLOAD COUNT 1448

1

1448

THREE-DIMENSIONAL NUMERICAL ANALYSIS OF STAGGERED GROINS
Authors: Oğuz Şimşek , Veysel Gümüş , Abdulkadir Özlük
Published: 2021 , Journal of Engineering Sciences and Design
DOI: 10.21923/jesd.834131
FAVORITE 0 TOTAL DOWNLOAD COUNT 596

0

596

Numerical modelling of sloped sub-critical open channel flow
Authors: Veysel Gümüş , Alaattin Seven, Oğuz Şimşek
Published: 2021 , Gümüşhane University Journal of Science and Technology
DOI: 10.17714/gumusfenbil.734550
FAVORITE 0 TOTAL DOWNLOAD COUNT 599

0

599

Şanlıurfa İstasyonunun Aylık Ortalama Güneşlenme Şiddetinin Farklı Yöntemler ile Trend Analizi
Authors: Veysel Gümüş , Oğuz Şimşek
Published: 2020 , Harran University Journal of Engineering
DOI: 10.46578/humder.828025
FAVORITE 0 TOTAL DOWNLOAD COUNT 889

0

889

NUMERICAL MODELING OF OVERSHOT GATE FLOW
Authors: Oğuz Şimşek
Published: 2020 , Journal of Engineering Sciences and Design
DOI: 10.21923/jesd.752914
FAVORITE 0 TOTAL DOWNLOAD COUNT 650

0

650

Numerical Modelling of Open Channel Flow with Different Flow Conditions
Authors: Oğuz Şimşek
Published: 2020 , Turkish Journal of Nature and Science
DOI: 10.46810/tdfd.725612
FAVORITE 0 TOTAL DOWNLOAD COUNT 1822

0

1822

Determining the Effect of Computational Grid Properties on Numerical Model Results
Authors: Oğuz Şimşek , Hüseyin İşlek , M. Sami Aköz
Published: 2020 , Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
DOI: 10.21605/cukurovaummfd.764907
FAVORITE 1 TOTAL DOWNLOAD COUNT 724

1

724

Farklı Akım Koşullarına Sahip Serbest Hidrolik Sıçramanın Deneysel ve Sayısal Modellemesi
Authors: Veysel Gümüş , Mehmet Parmaksız, Oğuz Şimşek , Yavuz Avşaroğlu
Published: 2019 , Bilecik Seyh Edebali University Journal of Science
DOI: 10.35193/bseufbd.634637
FAVORITE 0 TOTAL DOWNLOAD COUNT 2230

0

2230

Değişken Enkesitli Açık Kanal Akımının Deneysel ve Sayısal Modellemesi
Authors: Veysel Gümüş , Oğuz Şimşek , Şemsettin Bal
Published: 2019 , Gazi University Journal of Science Part C: Design and Technology
DOI: 10.29109/gujsc.592989
FAVORITE 0 TOTAL DOWNLOAD COUNT 1042

0

1042

Numerical Modeling of Interaction of Turbulent Flow with a Buried Circular Cylinder on a Plane Surface
Authors: M. Sami Akoz, Oğuz Şimşek , N. Göksu Soydan
Published: 2019 , Teknik Dergi
DOI: 10.18400/tekderg.432310
FAVORITE 0 TOTAL DOWNLOAD COUNT 1436

0

1436

NUMERICAL MODELING OF OPEN CHANNEL FLOW INTERACTING WITH RADIAL GATE
Authors: Oğuz Şimşek , Mehmet Parmaksız, Veysel Gümüş
Published: 2019 , Nigde Omer Halisdemir University Journal of Engineering Sciences
DOI: 10.28948/ngumuh.519532
FAVORITE 0 TOTAL DOWNLOAD COUNT 1736

0

1736

Numerical Analysis of Spillway Flow: Mersin Dereyurt Pond Spillway Example
Authors: M. Nihat Telkıran, M. Sami Aköz , Oğuz Şimşek , N. Göksu Soydan
Published: 2019 , Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
DOI: 10.21605/cukurovaummfd.601354
FAVORITE 0 TOTAL DOWNLOAD COUNT 1173

0

1173

Hidrolojik Kuraklık Değerlendirmesi: Murat Nehri-Palu Örneği
Authors: Veysel Gümüş , Mustafa Semih Yıldız, Oğuz Şimşek
Published: 2018 , Harran University Journal of Engineering
DOI: -
FAVORITE 1 TOTAL DOWNLOAD COUNT 1376

1

1376

Akışkan Hacimleri Yöntemiyle Yapılan Sayısal Modellemelerde Yan Duvar Etkisinin İncelenmesi
Authors: Veysel Gümüş , Oğuz Şimşek , N. Göksu Soydan , M. Sami Aköz , M. Salih Kırkgöz
Published: 2018 , Harran University Journal of Engineering
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1875

0

1875

Dolusavak Mansabında Oluşan Hidrolik Sıçramanın Su Yüzü Profilinin Belirlenmesi
Authors: Oğuz Şimşek , M. Sami Aköz , N. Göksu Soydan , Veysel Gümüş
Published: 2018 , Harran University Journal of Engineering
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1992

0

1992

Experimental and Numerical Analysis of Flow around a Circular Bridge Pier
Authors: N. Göksu Soydan, Oğuz Şimşek , M. Sami Aköz
Published: 2018 , Journal of Polytechnic
DOI: 10.2339/politeknik.389584
FAVORITE 0 TOTAL DOWNLOAD COUNT 2306

0

2306

Articles published in
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi
Bilecik Seyh Edebali University Journal of Science
Bilecik Seyh Edebali University Journal of Science
Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
Duzce University Journal of Science and Technology
Duzce University Journal of Science and Technology
Gazi University Journal of Science Part C: Design and Technology
Gazi University Journal of Science Part C: Design and Technology
Gümüşhane University Journal of Science and Technology
Gümüşhane University Journal of Science and Technology
Harran University Journal of Engineering
Harran University Journal of Engineering
Journal of Engineering Sciences and Design
Journal of Engineering Sciences and Design
Journal of Natural Hazards and Environment
Journal of Natural Hazards and Environment
Journal of Polytechnic
Journal of Polytechnic
Konya Journal of Engineering Sciences
Konya Journal of Engineering Sciences
Nigde Omer Halisdemir University Journal of Engineering Sciences
Nigde Omer Halisdemir University Journal of Engineering Sciences
Süleyman Demirel University Journal of Natural and Applied Sciences
Süleyman Demirel University Journal of Natural and Applied Sciences
Teknik Dergi
Teknik Dergi
Turkish Journal of Nature and Science
Turkish Journal of Nature and Science
Turkish Journal of Remote Sensing
Turkish Journal of Remote Sensing
Editorship
Harran University Journal of Engineering
Harran University Journal of Engineering
Editor , Section Editor
Editorial Board Memberships
Harran University Journal of Engineering
Harran University Journal of Engineering
Turkey Lidar Journal
Turkey Lidar Journal

Reviews

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi
Bitlis Eren Üniversitesi Fen Bilimleri Dergisi
Dicle University Journal of the Institute of Natural and Applied Sciences
Dicle University Journal of the Institute of Natural and Applied Sciences
Gümüşhane University Journal of Science and Technology
Gümüşhane University Journal of Science and Technology
Harran University Journal of Engineering
Harran University Journal of Engineering
International Journal of Engineering Research and Development
International Journal of Engineering Research and Development
Journal of Engineering Sciences and Design
Journal of Engineering Sciences and Design
Nigde Omer Halisdemir University Journal of Engineering Sciences
Nigde Omer Halisdemir University Journal of Engineering Sciences
Turkey Lidar Journal
Turkey Lidar Journal
Uludağ University Journal of The Faculty of Engineering
Uludağ University Journal of The Faculty of Engineering

Publications

Long-term (1969-2020) Meteorological Drought Analysis of the Çoruh Basin Using the SPI Method
Authors: Oğuz Şimşek , Nazire Göksu Soydan Oksal , Elif Miraç Uncu , Veysel Gümüş , Mehmet Şeker
Published: 2024 , Journal of Polytechnic
DOI: 10.2339/politeknik.1295259
CITED 4 FAVORITE 1 TOTAL DOWNLOAD COUNT 797

4

1

797

Probabilistic Meteorological Drought Analysis: An Application in the Lake District
Authors: Ali Demir Keskiner , Oğuz Şimşek
Published: 2023 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufenbed.1213855
CITED 4 FAVORITE 1 TOTAL DOWNLOAD COUNT 626

4

1

626

Assessing the Monthly Total Rainfall Trends at Artvin and Rize Stations using Different Methods
Authors: Veysel Gümüş , Oğuz Şimşek , Muhammed Kürşad Açar
Published: 2022 , Harran University Journal of Engineering
DOI: 10.46578/humder.1207593
CITED 3 FAVORITE 0 TOTAL DOWNLOAD COUNT 924

3

0

924

Estimation of Solar Radiation in Adıyaman and Gaziantep Stations Using Support Vector Machines
Authors: Latif Doğan Dinsever , Veysel Gümüş , Oğuz Şimşek , Yavuz Avşaroğlu , Mehmet Kuş
Published: 2021 , Bilecik Seyh Edebali University Journal of Science
DOI: 10.35193/bseufbd.904393
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 519

1

1

519

Estimation of Monthly Pan Evaporation of Adıyaman and Diyarbakir Stations with Artificial Intelligence Methods
Authors: Veysel Gümüş , Yunus Yeşiltaş , Oğuz Şimşek
Published: 2021 , Turkish Journal of Nature and Science
DOI: 10.46810/tdfd.893630
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 710

2

0

710

FARKLI BATIKLIK ORANLARINA SAHİP BATIK HİDROLİK SIÇRAMANIN SAYISAL MODELLEMESİ
Authors: Oğuz Şimşek , Mehmet Kösen , Veysel Gümüş
Published: 2021 , Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi
DOI: 10.54365/adyumbd.987338
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 616

1

0

616

Trend analysis of monthly total pan evaporation data of Southeast Anatolia Region with Mann-Kendall Test and Innovative Sen Method
Authors: Yavuz Avşaroğlu , Veysel Gümüş , Oğuz Şimşek , Latif Doğan Dinsever , Mehmet Kuş
Published: 2021 , Gümüşhane University Journal of Science and Technology
DOI: 10.17714/gumusfenbil.908615
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 947

1

0

947

Estimation of the Roller Length of Submerged Hydraulic Jumps using Artificial Intelligence Methods
Authors: Veysel Gümüş , İbrahim Mahmut Yoluk, Oğuz Şimşek , Göksu Soydan
Published: 2021 , Konya Journal of Engineering Sciences
DOI: 10.36306/konjes.879666
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 553

1

0

553

Trend Analysis of Historical Drought During 1929-2016 in Diyarbakır Station with Innovative Şen Method
Authors: Veysel Gümüş , Latif Doğan Dinsever , Oğuz Şimşek
Published: 2021 , Journal of Natural Hazards and Environment
DOI: 10.21324/dacd.884682
CITED 5 FAVORITE 1 TOTAL DOWNLOAD COUNT 1448

5

1

1448

THREE-DIMENSIONAL NUMERICAL ANALYSIS OF STAGGERED GROINS
Authors: Oğuz Şimşek , Veysel Gümüş , Abdulkadir Özlük
Published: 2021 , Journal of Engineering Sciences and Design
DOI: 10.21923/jesd.834131
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 596

1

0

596

Şanlıurfa İstasyonunun Aylık Ortalama Güneşlenme Şiddetinin Farklı Yöntemler ile Trend Analizi
Authors: Veysel Gümüş , Oğuz Şimşek
Published: 2020 , Harran University Journal of Engineering
DOI: 10.46578/humder.828025
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 889

1

0

889

NUMERICAL MODELING OF OVERSHOT GATE FLOW
Authors: Oğuz Şimşek
Published: 2020 , Journal of Engineering Sciences and Design
DOI: 10.21923/jesd.752914
CITED 4 FAVORITE 0 TOTAL DOWNLOAD COUNT 650

4

0

650

Numerical Modelling of Open Channel Flow with Different Flow Conditions
Authors: Oğuz Şimşek
Published: 2020 , Turkish Journal of Nature and Science
DOI: 10.46810/tdfd.725612
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 1822

2

0

1822

Determining the Effect of Computational Grid Properties on Numerical Model Results
Authors: Oğuz Şimşek , Hüseyin İşlek , M. Sami Aköz
Published: 2020 , Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
DOI: 10.21605/cukurovaummfd.764907
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 724

1

1

724

Farklı Akım Koşullarına Sahip Serbest Hidrolik Sıçramanın Deneysel ve Sayısal Modellemesi
Authors: Veysel Gümüş , Mehmet Parmaksız, Oğuz Şimşek , Yavuz Avşaroğlu
Published: 2019 , Bilecik Seyh Edebali University Journal of Science
DOI: 10.35193/bseufbd.634637
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 2230

1

0

2230

Değişken Enkesitli Açık Kanal Akımının Deneysel ve Sayısal Modellemesi
Authors: Veysel Gümüş , Oğuz Şimşek , Şemsettin Bal
Published: 2019 , Gazi University Journal of Science Part C: Design and Technology
DOI: 10.29109/gujsc.592989
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1042

1

0

1042

Numerical Modeling of Interaction of Turbulent Flow with a Buried Circular Cylinder on a Plane Surface
Authors: M. Sami Akoz, Oğuz Şimşek , N. Göksu Soydan
Published: 2019 , Teknik Dergi
DOI: 10.18400/tekderg.432310
CITED 6 FAVORITE 0 TOTAL DOWNLOAD COUNT 1436

6

0

1436

NUMERICAL MODELING OF OPEN CHANNEL FLOW INTERACTING WITH RADIAL GATE
Authors: Oğuz Şimşek , Mehmet Parmaksız, Veysel Gümüş
Published: 2019 , Nigde Omer Halisdemir University Journal of Engineering Sciences
DOI: 10.28948/ngumuh.519532
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1736

1

0

1736

Numerical Analysis of Spillway Flow: Mersin Dereyurt Pond Spillway Example
Authors: M. Nihat Telkıran, M. Sami Aköz , Oğuz Şimşek , N. Göksu Soydan
Published: 2019 , Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
DOI: 10.21605/cukurovaummfd.601354
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1173

1

0

1173

Experimental and Numerical Analysis of Flow around a Circular Bridge Pier
Authors: N. Göksu Soydan, Oğuz Şimşek , M. Sami Aköz
Published: 2018 , Journal of Polytechnic
DOI: 10.2339/politeknik.389584
CITED 3 FAVORITE 0 TOTAL DOWNLOAD COUNT 2306

3

0

2306

Popular Publications: It is determined automatically by the researchers doing research in DergiPark according to the statistics of being added to the favorites. CrossRef Cited: The citations shown in DergiPark are drawn from CrossRef. For this, the cited and cited articles must be registered in CrossRef (DOI number). ^: Citation numbers are reflected in the system by DergiPark at certain periods. : Click to get information about the DergiPark User Badge.
Interactive Guide Tool
If you want to see the panel introduction, you can click Start Tour.