1. A case study on severe damage at a tunnel in serpentinite rock mass

   • Y. Fujii
   • N. Ikeda
   • A. B. N. Dassanayake

   Research Article Open access 21 December 2021 Article: 34

   

2. Material removal predictions in the robot glass polishing process using machine learning

   • Max Schneckenburger
   • Sven Höfler
   • Rainer Börret

   Research Article Open access 21 December 2021 Article: 33

   

3. Okra (Abelmoschus esculentus) in a refugee context in East Africa: Kitchen gardening helps with mineral provision

   • Desta Woldetsadik
   • Eulogio J. Llorent-Martínez
   • David E. B. Fleming

   Research Article Open access 21 December 2021 Article: 32

   

4. Fruit-classification model resilience under adversarial attack

   • Raheel Siddiqi

   Research Article Open access 21 December 2021 Article: 31

   

5. Analysing land use/land cover changes and its dynamics using remote sensing and GIS in Gubalafito district, Northeastern Ethiopia

   • Gebeyehu Abebe
   • Dodge Getachew
   • Alelgn Ewunetu

   Research Article Open access 20 December 2021 Article: 30

   

6. Variable universe adaptive fuzzy sliding mode projective synchronization of hyperjerk system based on disturbance observer

   • Baojie Zhang
   • Yuming Feng
   • Xianxiu Zhang

   Research Article Open access 20 December 2021 Article: 29

   

7. Environmental change, resilience, adaptation and sustainability in Africa

   • Terence Epule Epule

   Editorial Open access 20 December 2021 Article: 28

8. Control and understanding of metal contacts to β-Ga₂O₃ single crystals: a review

   • Hogyoung Kim

   Review Paper Open access 18 December 2021 Article: 27

   

9. Simulation of air temperature and their influence on the potential distribution of Myracrodruon urundeuva, Copernicia prunifera and Cereus jamacaru in the Caatinga

   • Luciana Cristina de Sousa Vieira
   • Vicente de Paula Silva Filho
   • Glayson Francisco Bezerra das Chagas

   Research Article Open access 18 December 2021 Article: 26

   

10. High-performance blockchain system for fast certification of manufacturing data

    • Diogo Costa
    • Miguel Teixeira
    • José Santos

    Research Article Open access 18 December 2021 Article: 25

    

11. Study on tri-imidazole derivatives modified with triazine-trione structure as latent curing agents for epoxy resin

    • Xiaodong Wan
    • Jianben Liu
    • Jun Wang

    Research Article Open access 18 December 2021 Article: 24

    

12. Garcinia cambogia extract alters anxiety, sociability, and dopamine turnover in male Swiss albino mice

    • Michael K. Ibrahim
    • Marina Aboelsaad
    • Moustafa Sayed

    Research Article Open access 18 December 2021 Article: 23

    

13. Strategies and progress in synthetic textile fiber biodegradability

    • Jeannie Egan
    • Sonja Salmon

    Review Open access 18 December 2021 Article: 22

    

14. External factors that affect the photoplethysmography waveforms

    • Irene Pi
    • Isleen Pi
    • Wei Wu

    Research Article Open access 14 December 2021 Article: 21

    

15. Assessment of bank erosion and its impact on land use and land cover dynamics of Mahananda River basin (Upper) in the Sub-Himalayan North Bengal, India

    • Kunal Chakraborty
    • Snehasish Saha

    Research Article Open access 14 December 2021 Article: 20

    

16. Assessment of rate of penetration of a tunnel boring machine in the longest railway tunnel of Turkey

    • Candan Gokceoglu

    Research Article Open access 14 December 2021 Article: 19

    

17. Simulation model of natural gas supply chain in a function of costs optimization: the case of Croatia

    • Dario Šebalj

    Research Article Open access 14 December 2021 Article: 18

    

18. Optimization and biosynthesis of calcined chicken eggshell doped titanium dioxide photocatalyst based nanoparticles for wastewater treatment

    • Tafere Aga Bullo
    • Yigezu Mekonnen Bayisa
    • Mohammed Seid Bultum

    Research Article Open access 11 December 2021 Article: 17

    

19. Utilization of adaptive neuro-fuzzy interference system and functional network in prediction of total organic carbon content

    • Osama Siddig
    • Hany Gamal
    • Salaheldin Elkatatny

    Research Article Open access 11 December 2021 Article: 16

    

20. Regimes of cosmic-ray diffusion in Galactic turbulence

    • P. Reichherzer
    • L. Merten
    • E. G. Zweibel

    Research Article Open access 11 December 2021 Article: 15

    

21. Screening of potential antidiabetic phytochemicals from Gongronema latifolium leaf against therapeutic targets of type 2 diabetes mellitus: multi-targets drug design

    • Basiru Olaitan Ajiboye
    • Opeyemi Iwaloye
    • Babatunji Emmanuel Oyinloye

    Research Article Open access 11 December 2021 Article: 14

    

22. Design suggestions on modified self-sustainable space toilet

    • Shreyash A. Sakhare
    • Sourabh M. Pendkar
    • Girish C. Verma

    Research Article Open access 11 December 2021 Article: 13

    

23. Identification of rare-earth minerals associated to K-feldspar: Capacsaya project in Peru

    • J. Ochoa
    • E. Monteblanco
    • L. Avilés-Félix

    Research Article Open access 11 December 2021 Article: 12

    

24. Undrained shear strength of Lisbon Miocene clay: a reappraisal based on triaxial and pressuremeter test results

    • Mafalda Lopes Laranjo
    • Manuel Matos Fernandes

    Research Article Open access 11 December 2021 Article: 11

    

25. RETRACTED ARTICLE: A technology review on treatment of acid mine drainage with bentonite–steel slag composite

    • Le Tong
    • Ronggui Fan
    • Yi Pan

    Review Paper Open access 09 December 2021 Article: 10

    

26. A novel ResNet101 model based on dense dilated convolution for image classification

    • Qi Zhang

    Research Article Open access 07 December 2021 Article: 9

    

27. Comparison of the effects of three types of heating tobacco system and conventional cigarettes on indoor air quality

    • Yoshihiro Enomoto
    • Ryosuke Imai
    • Misato Kotaki

    Research Article Open access 07 December 2021 Article: 8

    

28. Elements of the anthropological theory of didactics in the selection of contents in a course of fluid mechanics in engineering, a case study in Spanish universities

    • José Luis Díaz Palencia
    • Antonio Naranjo Redondo
    • Pedro Vivas Caballero

    Case Study Open access 07 December 2021 Article: 7

    

29. Simplified calculation of friction mean effective pressure for fast simulation of fuel consumption

    • Georg Finger

    Research Article Open access 06 December 2021 Article: 6

    

30. Operation analysis of C₃-MR process cold box by grey system theory

    • Yuan Yang
    • Chuantao Xiao
    • Zhipeng Jia

    Review Paper Open access 04 December 2021 Article: 5

    

31. Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron

    • Yongfang Liu
    • Hiroshi Matsumoto
    • Ming Gu

    Research Article Open access 04 December 2021 Article: 4

    

32. AnesthesiaGUIDE: a MATLAB tool to control the anesthesia

    • Simona Coman
    • Diana Iosif

    Research Article Open access 04 December 2021 Article: 3

    

33. Suitability of natural rocks as materials for cutting tools

    • Berend Denkena
    • Bernd Breidenstein
    • Philipp Wolters

    Research Article Open access 04 December 2021 Article: 2

    

34. Comparison of historical and current temperatures in show caves (Slovenia)

    • Stanka Šebela
    • Janez Turk

    Research Article Open access 04 December 2021 Article: 1