Shelling techniques

The linear buckling behavior of functionally graded toroidal shell segments with corrugated core under axial compression using the first-order shear deformation theory is presented in this paper. The homogeneous technique is applied for shear deformable corrugated core. Approximate analytical solutions are assumed to satisfy the simply supported boundary conditions and the adjacent equilibrium criterion is applied to obtain closed-form relations of buckling loads.

10p dathienlang1012 03-05-2024 1 0   Download

This paper attempts to improve the load-carrying capacity of FG-CNTRC cylindrical shells by proposing the design options of the spiral FG-CNTRC stiffener system. By using the anisotropic beam theory and the transformation technique, a homogenization technique for the spiral FG-CNTRC stiffeners is developed and the nonlinear buckling behavior of spirally stiffened cylindrical shells is analysed.

10p dathienlang1012 03-05-2024 2 0   Download

A semi-analytical approach of nonlinear dynamic buckling of functionally graded carbon nanotubes reinforced composite (FG-CNTRC) cylindrical shells stiffened by the ring or stringer FG-CNTRC stiffeners by using the Donnell shell theory with the geometrical nonlinearities in von Kármán sense is reported in this paper. The improved smeared stiffener technique is applied for FG-CNTRC stiffeners.

10p dathienlang1012 03-05-2024 4 0   Download

A semi-analytical approach of nonlinear vibration of functionally graded carbon nanotubes reinforced composite (FG-CNTRC) doubly curved shallow shells stiffened by longitudinal or transversal FG-CNTRC stiffeners by using the first-order shear deformation theory (FSDT) with the geometrical nonlinearities in von Kármán sense is reported in this paper. The novel smeared stiffener technique is improved for FG-CNTRC stiffeners according to the FSDT.

10p dathienlang1012 03-05-2024 2 0   Download

An analytical approach of nonlinear buckling and postbuckling analysis of core-corrugated functionally graded carbon nanotubes reinforced composite (FG- CNTRC) cylindrical panels under axial compression is presented in the present study. A homogenization technique is applied for the corrugated core with thermal effects. The nonlinear stability equation system of panels is formulated by using the Donnell thin shell theory with the von Kármán geometrical nonlinearities.

9p dathienlang1012 03-05-2024 2 0   Download

Ebook "Chemistry and chemical technologies in waste valorization" provides readers with contents including: sonocatalysis - a potential sustainable pathway for the valorization of lignocellulosic biomass and derivatives; waste printed circuit board (PCB) recycling techniques; chemical valorization of cashew nut shell waste; valorisation of biowastes for the production of green materials using chemical methods; valorization of proteins from Co- and By-products from the fish and meat industry;...

292p tracanhphuonghoa1007 22-04-2024 3 2   Download

Ebook "Coaxial lithography" focuses on the electrochemical synthesis of multi-segmented nanowires. In contrast to previous work, which was largely limited to one-dimensional modifications, Tuncay Ozel presents a technique, termed coaxial Lithography (COAL), which allows for the synthesis of coaxial nanowires in a parallel fashion with sub-10 nanometer resolution in both the axial and radial dimensions.

116p tudohanhtau1006 29-03-2024 2 1   Download

Ebook "Dynamic paleontology: Using quantification and other tools to decipher the history of life" is needed because many contemporary analytical projects in the earth sciences would greatly benefit by refinement of the research approach at the initial stages of each investigation. This book will help to clarify matters, and dispel confusion with regard to proper deployment of analytical technique in the earth sciences.

254p manmanthanhla0201 27-02-2024 2 1   Download

Part 2 book "Textbook on meat, poultry and fish technology" includes content: History and development of poultry meat and egg processing industry; commonly occurring anti nutrients, and antibiotics in poultry feed ingredients and its effect on egg and meat nutrition; quality identification and quality maintenance of poultry meat; structure, chemical, nutritional and microbiological quality of poultry meat; nutritive value, preservation and packaging techniques of shelled and liquid eggs; quality identification of shell eggs and factors influencing the quality,... and other contents.

330p muasambanhan02 18-12-2023 6 4   Download

The linear buckling behavior of functionally graded cylindrical shells with porous core stiffened by spiral stiffeners under axial compression using the first-order shear deformation theory is presented in this paper. The improved Lekhnitskii’s smeared stiffeners technique is applied for shear deformable spiral FGM stiffeners.

9p visharma 20-10-2023 11 5   Download

For the resulting equation of double-curved shells, which is formed by revolution of an arbitrary in-plane meridian curve and cannot be represented analytically, there exists no analytical approach to problem setting and solution. This paper presents the digitalization of the meridian curve in the polar coordinate system, which forms double number series.

16p viisac 15-09-2023 3 3   Download

Ebook Teach yourself Unix in 24 hours - Part 2 includes contents: Hour 12 advanced vi tricks, tools, and techniques; hour 13 an overview of the emacs editor; hour 14 introduction to command shells; hour 15 getting the most out of the c shell; hour 16 basic shell programming; hour 17 job control; hour 18 printing in the UNIX environment; hour 19 searching for information and files; hour 20 communicating with others; hour 21 using netscape to see the world wide web; hour 22 internet e-mail, netnews, and IRC; hour 23 using telnet and ftp; hour 24 programming in C for UNIX.

318p haojiubujain06 06-09-2023 5 3   Download

Continued part 1, part 2 of ebook "Building construction handbook (Sixth edition)" provide readers with content about: superstructure; internal construction and finishes; domestic services; electronic communications installations; services–fire stops and seals; single and ventilated stack systems;... Please refer to the part 2 of ebook for details!

434p langmongnhu 14-12-2022 11 4   Download

SiO2 supported core@shell nanoparticles (CSNs) have recently attracted great attention due to their unique, tunable, optical, photocatalytic, and higher adsorption properties. In this study, SiO2@CeO2 CSNs were synthesized using a chemical precipitation technique and characterized by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM) analysis. XRD analysis showed that SiO2 particles were the core while CeO2 particles were the shell.

11p langthannam 29-12-2021 9 1   Download

The waste cockle shell was prepared in nano size via ball mill technique which was run for 36 hours at 350 rpm speed and then calcined at 900 °C for 2 hours to decompose calcium carbonate, CaCO₃ into nano calcium oxide, n-CaO.

4p mudbound 10-12-2021 5 1   Download

In this work, surface-functionalization agents and various salts as auxiliaries were used to improve the adsorption capacity of biochars produced via hydrothermal carbonization of glucose, cellulose, and hazelnut shell. The effect of surface functionalization with different acids and bases as well as neutral salts on the adsorption of methylene blue and methyl orange was investigated using Boehm titration, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy techniques.

21p tudichquannguyet 29-11-2021 12 1   Download

A new technique for sensing Ga(III) concentration based on polyvinyl alcohol-citrate capped gold nanoparticle–p-aminohippuric acid hybrid (or three-layer core-shell configurations) has been demonstrated. The p-aminohippuric acid capped citrate-gold nanoparticles were comfortably agglomerated in the presence of Ga(III), and the color of the reaction quickly turned from red to violet or blue. Under the detection conditions, a good linear relationship was ideally obtained between the ratio of the absorbance intensity at 620 nm to that at 520 nm (A620/A520).

13p tudichquannguyet 29-11-2021 12 1   Download

In this article, we propose a two-process coupling subproblem technique for improving the errors that overcome thin shell assumptions. This technique is based on the subproblem method to couple SPs in two-processes. The first scenario is an initial problem solved with coils/stranded inductors together with thin region models. The obtained solutions are then considered as volume sources for the second scenario, including actual volume improvements that scope with the thin shell assumptions.

4p larachdumlanat127 02-01-2021 5 2   Download

Lecture Business management information system - Lecture 10: Planning the sense-and-respond approach of strategy-making. In this chapter, the following content will be discussed: The traditional view of planning with the sense-and-respond approach of strategy-making, presenting seven IS planning techniques, seven planning techniques, skandia future centers, shell oil.

51p larachdumlanat125 01-12-2020 30 6   Download

Biogas is one of the most important renewable energy source. Biogas normally contains 55 – 65% methane (CH4) and 45 – 55% carbon dioxide (CO2) and trace amounts of hydrogen sulphide (H2S). Raw biogas cannot be used as vehicle fuel as it contains CO2 and H2S which lowers the calorific value and causes corrosion to the storage vessel respectively. Enriching the biogas by removing CO2 and H2S will significantly improve the quality of biogas. The application of biogas either as cooking fuel or engine fuel chooses the type of purification method.

6p trinhthamhodang6 09-07-2020 17 1   Download