## 5 Conclusions
**Nomenclature**  
**Notation** **Definition and Unit**  
\(rms_{z}\) & Root-mean-square acceleration in the vertical direction (ms\({}^{-2}\))  
v & Vehicle speed (kmh\({}^{-1}\))  
\(rms_{zus}\) & Weighted root-mean-square acceleration in the s-directions  
\(a_{w}\) & Weighted acceleration  
T & Signal duration (s)  
K\({}_{\rm S}\) & Weighted factor associated with the direction (Kx = 1.4, Ky = 1.4, Kz = 1)  
\(T_{exp}\) & Daily duration of vibration exposure  
\(T_{0}\) & Reference duration set up to 8 h  
A(8) & Calculated as the highest value of A(8)x, A(8)y, and A(8)z  
\(T_{meas}\) & Measurement duration time (h)  
VDV(8) & Highest value of VDV(8)x, VDV(8)y, and VDV(8)z  
\(S_{d}^{A}\) & Daily compressive dose value  
\(S^{A}\) & Compressive dose value (MPa)  
\(C_{dyn,i}\) & Sum of peak compressive forces acting on each disc level (N)  
B & Vertebral endplate surface (mm\({}^{2}\))  
\(t_{dj}\) & Daily exposure period (h)  
\(t_{mj}\) & Duration of the exposure measurement time (h)  
n & Number of years of exposure  
\(S_{ui}^{A}\) & Ultimate strength of the lumbar spine for a person of age b+i years  
\(S_{stat,i}^{A}\) & Mean value of the compressive-decompressive force divided by the area  
if vertebra endplate  
\(R^{A}\) & Risk factor  
\(e^{-i2\pi/N}\) & A primitive Nth root of 1  
N & Memory length  
x[N] & Discrete-time signal  
f & Discrete frequency  
\(\Delta\)f & Obtained frequency from FFT  
\(a_{RMS}\) & Root mean square of acceleration of the obtained frequency (f)  
AS & Average weighted acceleration  
\(A_{w,x},\ A_{w,y},\ A_{w,z}\) & Weighted acceleration at X, Y, and Z translational axes  
**References**  
1. [PERSON] The analysis of onion and garlic. _J. Chromatogr. A_**2006**, _1112_, 3-22. [CrossRef] [PubMed]
2. [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON] [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] In-vitro evaluation of the antioxidant and anti-inflammatory activity of volatile compounds and minerals in five different onion varieties. _Separations_**2021**, _85_, 7. [CrossRef]
3. [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Economical and environmentally-friendly approaches for usage of onion (_Allium Ccap_ L) waste. _Food Funct._**2016**, \(7\), 3354-3369. [CrossRef] [PubMed]
4. [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Consumption of onion juice modulates oxidative stress and attenuates the risk of bone disorders in middle-aged and post-menopausal healthy subjects. _Food Funct._**2016**, \(7\), 902-912. [CrossRef]
5. [PERSON]; [PERSON]; [PERSON] Nitrogen nutrition and fertilization of onions (_Allium ccap_ L)--A literature review. _Sci. Hortic._**2022**, _291_, 110591. [CrossRef]
6. FAO (Food and Agriculture Organization of the United Nations). FAOSTAT. 2021. Available online: [[http://www.fao.org/faostat/en/#data](http://www.fao.org/faostat/en/#data)]([http://www.fao.org/faostat/en/#data](http://www.fao.org/faostat/en/#data)) (accessed on 1 December 2021). 7. KOSTAT South Korea: Production Volume of Onions. 2021. Available online: [[https://www.statista.com/statistics/958845/south-korea-onion-production/](https://www.statista.com/statistics/958845/south-korea-onion-production/)]([https://www.statista.com/statistics/958845/south-korea-onion-production/](https://www.statista.com/statistics/958845/south-korea-onion-production/)) (accessed on 5 November 2021). 8. [PERSON]; [PERSON] Vegetable transplanters for use in developing countries--A review. _Int. J. Vg. Sci._**2008**, _14_, 232-255. [CrossRef]* [PERSON] et al. (2019) [PERSON]; [PERSON]; [PERSON]; [PERSON] Development and evaluation of semi-automatic six row onion seedlings transplanter. _Agri. Mech. Asia Afr. Lat. Am._**2019**, _50_, 29-35. * [PERSON] et al. (2020) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Onion transplanting mechanisms: A review. _Prec. Agri. Sci. Technol._**2020**, \(2\), 195-208. [CrossRef]
* [PERSON] (2017) [PERSON] _Theory of Vibration with Applications_, 4 th ed. ; CRC Press: London, UK, 2017; ISBN 978-0-203-71884-1. * [PERSON] et al.