1. Morphology and mineralogy of ambient particulate matter over mid-Brahmaputra Valley: application of SEM–EDX, XRD, and FTIR techniques

   • Jayanta Bora
   • Pratibha Deka
   • Raza Rafiqul Hoque

   Research Article Open access 14 January 2021 Article: 137

   

2. Synthesis of metal–organic frameworks (MOFs) MIL-100(Fe) functionalized with thioglycolic acid and ethylenediamine for removal of eosin B dye from aqueous solution

   • Adedibu C. Tella
   • Janet T. Bamgbose
   • Olusegun A. Odunola

   Research Article Open access 13 January 2021 Article: 136

   

3. Design aspects of (super)hydrophobic mesh based oil-collecting device with improved efficiency

   • Weikang Xu
   • Zhentao Zhang
   • Tingping Lei

   Short Communication Open access 13 January 2021 Article: 135

   

4. Geochemical conditions of natural wetland and paddy fields in the Poyang Lake area, China

   • Evgeniya Soldatova
   • Yihui Dong
   • Zhanxue Sun

   Research Article Open access 13 January 2021 Article: 134

   

5. Folding photopolymerized origami sheets by post-curing

   • Xiaodong He
   • Christopher-Denny Matte
   • Tsz-Ho Kwok

   Research Article Open access 13 January 2021 Article: 133

   

6. Numerical investigation of the fiber/matrix inter-phase damage of a PPS composite considering temperature and cooling liquid ageing

   • Quentin C. P. Bourgogne
   • Vanessa Bouchart
   • Emmanuel Dattoli

   Research Article Open access 13 January 2021 Article: 132

   

7. Effects of road traffic on photosynthetic pigments and heavy metal accumulation in tree species of Kumasi Metropolis, Ghana

   • Ufere N. Uka
   • Ebenezer J. D. Belford
   • Florence A. Elebe

   Research Article Open access 13 January 2021 Article: 131

8. Experimental investigations of spray flow rate and angle in enhancing the performance of PV panels by steady and pulsating water spray system

   • Mojtaba Nateqi
   • Mehran Rajabi Zargarabadi
   • Roohollah Rafee

   Research Article Open access 13 January 2021 Article: 130

   

9. Fault severity detection of a worm gearbox based on several feature extraction methods through a developed condition monitoring system

   • Berkan Hızarcı
   • Rafet Can Ümütlü
   • Hasan Öztürk

   Research Article Open access 12 January 2021 Article: 129

   

10. Modeling dynamic mechanical system behavior using sequence modeling of embodiment function relations: case study on a hammer mechanism

    • Andreas Wettstein
    • Patric Grauberger
    • Sven Matthiesen

    Research Article Open access 12 January 2021 Article: 128

    

11. Techno-economic and environmental design of an optimal hybrid energy system for a community multimedia centre in Cameroon

    • Franck Armel Talla Konchou
    • Hermann Djeudjo Temene
    • Donatien Njomo

    Research Article Open access 12 January 2021 Article: 127

    

12. Optimization of critical angle, distance and flow rate of secondary fuel injection in DI diesel engine using computational fluid dynamics

    • M. Sonachalam
    • V. Manieniyan

    Research Article Open access 12 January 2021 Article: 126

    

13. Broadband photoluminescence in a ceramic (Mg₂SnO₄–SnO₂):Cr³⁺ system

    • N. D. C. Santana
    • A. López
    • S. S. Pedro

    Research Article Open access 12 January 2021 Article: 125

    

14. Comparison of self-tuned Neuro-Fuzzy controllers on 2 DOF helicopter: an application

    • Muhammet Öztürk
    • İbrahim Özkol

    Research Article Open access 12 January 2021 Article: 124

    

15. Rainfall variability and socio-economic constraints on livestock production in the Ngorongoro Conservation Area, Tanzania

    • Cecilia M. Leweri
    • Maurus J. Msuha
    • Anna C. Treydte

    Research Article Open access 12 January 2021 Article: 123

    

16. Effects of climatic factors on the sedimentation trends of Tarbela Reservoir, Pakistan

    • Nausheen Mazhar
    • Ali Iqtadar Mirza
    • Kanwal Javid

    Research Article Open access 12 January 2021 Article: 122

    

17. Security trends in Internet of Things: a survey

    • Rachit
    • Shobha Bhatt
    • Prakash Rao Ragiri

    Review Paper Open access 12 January 2021 Article: 121

    

18. Assessing the impact of vegetation coverage ratio in a floating water treatment bed of Pistia stratiotes

    • Kundan Samal
    • Soham Kar
    • Sudhanshu Upadhyay

    Research Article Open access 12 January 2021 Article: 120

    

19. Numerical study of time-dependent ferrofluid flow past a cylinder in the presence of stationary magnetic field

    • Anupam Bhandari

    Research Article Open access 12 January 2021 Article: 119

    

20. A new meta-heuristic pathfinder algorithm for solving optimal allocation of solar photovoltaic system in multi-lateral distribution system for improving resilience

    • Varaprasad Janamala

    Research Article Open access 12 January 2021 Article: 118

    

21. Kalman filter based method for tracking dynamic transmission line parameters

    • Yiqi Zhang
    • Yuan Liao

    Research Article Open access 12 January 2021 Article: 117

    

22. Role of Cystoseira mediterranea extracts (Sauv.) in the Alleviation of salt stress adverse effect and enhancement of some Hordeum vulgare L. (barley) growth parameters

    • Leila Bensidhoum
    • El-hafid Nabti

    Research Article Open access 12 January 2021 Article: 116

    

23. Non-isothermal Bingham fluid flow between two horizontal parallel plates with Ion-slip and Hall currents

    • Md. Tusher Mollah
    • Saykat Poddar
    • Md. Mahmud Alam

    Research Article Open access 12 January 2021 Article: 115

    

24. Detail investigation of thermoelectric performance and magnetic properties of Cs-doped Bi₂Sr₂Co₂O_y ceramic materials

    • B. Özçelik
    • M. Gürsul
    • A. Sotelo

    Research Article Open access 12 January 2021 Article: 114

    

25. Effects of wood distillate and soy lecithin on the photosynthetic performance and growth of lettuce (Lactuca sativa L.)

    • Andrea Vannini
    • Filippo Moratelli
    • Stefano Loppi

    Research Article Open access 12 January 2021 Article: 113

    

26. Parametric study of a corrugated airfoil in a forward flight at ultra-low Reynolds number

    • Mahmoud E. Abd El-Latief
    • Khairy Elsayed
    • Mohamed M. Abdelrahman

    Research Article Open access 11 January 2021 Article: 112

    

27. In-situ carbonization of ZIF-67 to fabricate magnetically Co/N-mC with high adsorption capacity toward water remediation

    • Zihao Zheng
    • Qiye Liu
    • Fangxiao Wang

    Research Article Open access 11 January 2021 Article: 111

    

28. Piperazine-substituted derivatives of favipiravir for Nipah virus inhibition: What do in silico studies unravel?

    • Raju Lipin
    • Anantha Krishnan Dhanabalan
    • Rajadurai Vijay Solomon

    Research Article Open access 11 January 2021 Article: 110

    

29. Interferences of trace metals between sediment and Dotillid crab (Ilyoplax frater) from three tidal creeks, Karachi, Pakistan

    • Asmat Saleem Siddiqui
    • Noor Us Saher

    Research Article Open access 11 January 2021 Article: 109

    

30. Numerical and experimental investigation of defects formation during friction stir processing on AZ91

    • Agha Amini Fashami Hoda
    • Nasrollah Bani Mostafa Arab
    • Bahram Nami

    Research Article Open access 11 January 2021 Article: 108

    

31. Doubly fed induction generators to enhance inter-area damping based on a Robust controller: \({{\varvec{H}}}_{2}/{{\varvec{H}}}_{\infty }\) Control

    • Ali Goodarzi
    • Ali Mohammad Ranjbar
    • Mohammad Ghiasi

    Research Article Open access 11 January 2021 Article: 107

    

32. On the performance of chaotic interleaver for turbo codes

    • Ahmed Sahnoune
    • Daoud Berkani

    Research Article Open access 11 January 2021 Article: 106

    

33. Purification and optimization of pink pigment produced by newly isolated bacterial strain Enterobacter sp. PWN1

    • Kasturi Poddar
    • Bhagyashree Padhan
    • Angana Sarkar

    Research Article Open access 11 January 2021 Article: 105

    

34. A route planning framework for smart wearable assistive navigation systems

    • Charis Ntakolia
    • Dimitris K. Iakovidis

    Research Article Open access 11 January 2021 Article: 104

    

35. Methanol addition after glucose depletion improves rPOXA 1B production under the pGap in P. pastoris X33: breaking the habit

    • Leidy D. Ardila-Leal
    • Raul A. Poutou-Piñales
    • Alejandro Pérez-Flórez

    Research Article Open access 11 January 2021 Article: 103

    

36. Numerical investigation of vortex formation in water intake system of a pumping station during low and high tides

    • Mahdi Mahmoudi Sabouki
    • Seyed Saied Bahrainian
    • Morteza Behbahani-Nejad

    Research Article Open access 11 January 2021 Article: 102

    

37. Cross-layer unequal error protection using 64-HQAM and RCPT codes for robust image communication

    • Anam Mobin
    • Ekram Khan
    • Mirza Salim Beg

    Research Article Open access 11 January 2021 Article: 101

    

38. A hybrid approach based on artificial neural network and cuckoo algorithm for optimization of the main cutting force during turning of Si brass alloys

    • Morteza Adineh
    • Hamid Doostmohammadi

    Research Article Open access 11 January 2021 Article: 100

    

39. Selection of prime mover to meet heating demand of a single effect absorption chiller based on laws of thermodynamics

    • M. Mohammadian Korouyeh
    • M. H. Saidi
    • C. Aghanajafi

    Research Article Open access 11 January 2021 Article: 99

    

40. Long-term monitoring of cropland transformation in Kolkata Metropolitan Area, India using open-source geospatial technologies

    • Shrabana Mazumder
    • Joydeep Saha
    • Debajit Datta

    Research Article Open access 11 January 2021 Article: 98

    

41. Co-pyrolysis of lignite and rapeseed cake: a comparative study on the thermal decomposition behavior and pyrolysis kinetics

    • Elif Yaman
    • Aysu Ulusal
    • Başak Burcu Uzun

    Research Article Open access 11 January 2021 Article: 97

    

42. Wall reabsorption effects on heat and mass transfer of viscous fluid in a narrow leaky tube

    • Aamir Shahzad
    • Waqar A. Khan

    Research Article Open access 11 January 2021 Article: 96

    

43. Empirical models for estimating the global solar radiation of Jubail Industrial City, the Kingdom of Saudi Arabia

    • Sheik Mujabar
    • Rao Chintaginjala Venkateswara

    Research Article Open access 11 January 2021 Article: 95

    

44. Rapid green synthesis of non-cytotoxic silver nanoparticles using aqueous extracts of 'Golden Delicious' apple pulp and cumin seeds with antibacterial and antioxidant activity

    • Israt Jahan
    • Fatih Erci
    • Ibrahim Isildak

    Research Article Open access 11 January 2021 Article: 94

    

45. Efficient microwave-assisted extraction of salidroside from Rhodiola crenulata

    • Rui Liu
    • Chen Guo
    • Chun-Zhao Liu

    Research Article Open access 11 January 2021 Article: 93

    

46. Implementation of Dahl’s dynamic friction model to contact mechanics of elastic solids

    • Mehmet N. Balci

    Research Article Open access 11 January 2021 Article: 92

    

47. Norm-based user selection algorithm for single-RF space modulation techniques with geometric mean decomposition based precoding scheme

    • Taissir Y. Elganimi
    • Feras F. Alfitouri

    Research Article Open access 11 January 2021 Article: 91

    

48. Evaluation of the permeability of high strength concrete using metakaolin and wood ash as partial replacement for cement

    • V. Kannan
    • P. Raja Priya

    Research Article Open access 11 January 2021 Article: 90

    

49. Mahua flowers (Madhuca sp.) utilization as a carbon-rich natural substrate for the cost-effective bench-scale production of fumaric acid

    • Kavita Singh
    • Deepankar Sharma
    • Abha Mishra

    Research Article Open access 11 January 2021 Article: 89

    

50. Detailed vibrational analysis of unbalanced morning glory spillways using coupled finite volume-finite element method

    • Mohammad H. Mirabi
    • Hassan Akbari
    • Mohammad Alembagheri

    Research Article Open access 11 January 2021 Article: 88