Analysis of the External Forces Affecting the Tractor Trailer Lifting-Tipping Device | Chapter 6 | Advances and Challenges in Science and Technology Vol. 8

 The item discusses the movement of a lifting and tilting device for a worm trailer. The impact of outside loads on the device, estimation of the trailer's load volume and tilt angle, analysis of changes in their limits.

Author(s) Details:

Khakimzyanov R. R.,
Department of Automative and Manufacturing Engineering, Tashkent State Transport University, St. Temiryulchilar, Tashkent, 100167, Uzbekistan.

Shermukhamedov A. A.,
Higher Attestation Commission under the Cabinet of Ministers of the Republic of Uzbekistan, Tashkent 100047, Republic of Uzbekistan.

Please see the link here: https://stm.bookpi.org/ACST-V8/article/view/12360

Xylophagous Millipede Surface Area to Volume Ratios are Size-dependent in Forests: A Brief Study | Chapter 11 | New Visions in Biological Science Vol. 8

 A water conservation hypothesis describes a consistent effect of rising precipitation (and resource abundance) on body size reductions. The goal of this study was to look into a water conservation theory in millipedes and compare the high long-term mean annual precipitation of forest biome species (750-1500 mm) to the lower long-term mean annual precipitation of savanna biome species (544 mm) (n=29, 6). When the confounding effects of phylogeny, sexual dimorphism, sexual size dimorphism, and size were controlled/removed, differences in surface area: volume ratios were found between six savanna species (Bicoxidens brincki, Doratogonus annulipes, Harpagophora spirobolina, Julomorpha hilaris, J. panda, Odontopyge tabulinus: 0,3597 The surface area-to-volume ratios of savanna millipedes were size-independent (0,519783 mm-1 in males and 0,823878 mm-1 in females). Surface area: volume ratios (t=3.75191, p=0.000013, n=58,12) adjusting for the derivation whereby length/width increase influenced surface area equally showed differences between size-independent savanna and size-dependent forest taxa. Female savanna millipedes were longer (t=2.26165, p=0.016156, n=22, 6) than female forest millipedes.

Author(S) Details

Mark Cooper
School of Animal, Plant & Environmental Sciences, University of the Witwatersrand, Johannesburg 2050, South Africa

View Book:- https://stm.bookpi.org/NVBS-V8/article/view/5386

Advanced Studies on Surface Characterisation of Atmospheric Pressure Plasma Treated Cotton Fabric—Effect of Operation Parameters | Chapter 1 | Current Perspectives on Chemical Sciences Vol. 4

Plasma treatment can modify the surface characteristics of fibres and fabrics and this does not have much effect on the bulk properties of fibres and fabrics. The exact effect of plasma treatment, i.e. the change that it makes to the surface characteristics of the cloth, depends on the gas used in the treatment. The cotton fibre surface was modified by plasma atmospheric pressure treatment (APPT), using gas as the carrier. The effects of four operating parameter variations, discharge strength, oxygen flow rate, jet-to-substrate distance, and jet movement speed were examined. The surface morphology of cotton fabrics was investigated by Scanning Electron Microscopy (SEM) images. X-ray Photoelectron Spectroscopy (XPS) and Fourier Transform Infrared Spectroscopy-Attenuated studied the elementary composition of the surface of the cloth. To analyze the functionality of the surface, Total Internal Reflectance (FTIR-ATR) was used. In this analysis, we revealed that after the surface characteristics of the cotton fibre, the operational parameters would be physical and chemical. Physically, after APPT, cracks and grooves were noted in the cotton fibre surface. The oxygen content on the surface of the cotton fibre was chemically increased after APPT. When the O/C ratio is taken into account, there was a steady effect of surface oxidation in the application of APPT for the treatment of cotton fiber in this study.

Author (s) Details

Chi-Wai Kan
Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.

Wai-Shan Man
Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.

View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/352