Weighted structural

The purpose of this work presents the behavior of semi-rigid connections in composite structures. A Genetic Algorithm based optimum design method is presented for composite frames with semi-rigid connections. The design algorithm obtains a frame with the least weight (beam, column and number of shear connectors per beam) by selecting appropriate sections from a standard set of AISC.

5p viwalton 02-07-2024 4 1   Download

Part 1 book "Basic structures for engineers and architects" includes content: What is structural engineering; learn the language; how do structures (and parts of structures) behave; force, mass and weight; loading – dead or alive; equilibrium – a balanced approach; more about forces - resultants and components; moments; reactions; different types of support – and what's a pin; a few words about stability; introduction to the analysis of pin-jointed frames; method of resolution at joints.

142p dianmotminh03 03-06-2024 4 1   Download

The influence of the black seed oil modified epoxy resin (EBSO)/monomer 3,4-epoxycyclohexylmethyl 3,4- epoxycyclohexane carboxylate (BCDE) weight ratio in the coatings based on the compounds and photoinitiator triarylsulfonium hexafluoroantimonate (TAS) on thermal properties of photocrosslinked coatings have been studied. The chemical structure of investigated UV-cured coatings was characterized by IR spectrometric analysis. Their thermogravimetric (TG) and differential scanning calorimetry (DSC) behavior were determined by TG and DSC analysis, respectively.

9p dianmotminh02 03-05-2024 3 1   Download

Fiber-Reinforced Polymer (FRP) in the form of thin-walled plate structures are widely used in different engineering applications due to their outstanding features such as: high strength-to-weight ratio, excellent fatigue and corrosion resistance, etc. This study focuses on the local buckling resistance of pultruded FRP columns by experimental work. The test data were compared to current theoretical and numerical predictions.

11p viohoyo 25-04-2024 3 1   Download

Continued part 1, part 2 of ebook "Structural connections for lightweight metallic structures" includes the following main contents: FSW of lap and T-joints; lightweight stiffened panels fabricated using emerging fabrication technologies, fatigue behaviour; damage tolerance of aircraft panels taking into account residual stress; multi-material adhesive joining in the automotive sector; welded aeronautical structures, cost and weight considerations;...

134p khuynhlinhnguyet1009 05-04-2024 3 1   Download

The objective of this paper was to determine the criteria for selection of C-Check maintenance service provider for a Thai-Singaporean low cost airline. To identify the significant criteria, the documentary studies from reviewing ten related researches in scholarly literatures were conducted and then developed the semi-structure interview guide.

8p longtimenosee07 29-03-2024 4 2   Download

Genome rearrangements are critical oncogenic driver events in many malignancies. However, the identification and resolution of the structure of cancer genomic rearrangements remain challenging even with whole genome sequencing.

17p vioraclene 31-03-2024 4 1   Download

In ebook "Weighted network analysis: Applications in genomics and systems biology" high-throughput measurements of gene expression and genetic marker data facilitate systems biologic and systems genetic data analysis strategies. Gene co-expression networks have been used to study a variety of biological systems, bridging the gap from individual genes to biologically or clinically important emergent phenotypes.

433p cotieubac1004 15-03-2024 6 0   Download

This paper has proposed a method of designing Polar codes by determining a synthetic channels reliability index sequence based on the Polarization Weights (PW) method called the Improved Polarization Weights (IPW) method. The simulation results show that the error correction performance of the code designed according to IPW is better than the code structure selected for 5G NR and designed according to the original PW method.

16p vigojek 02-02-2024 1 0   Download

The duodenal web is a thin, elongated, web-like structure that is one of the factors contributing to duodenal obstruction. Only 100 cases have been reported in the literature. We present a 2.5-year-old cachectic Afghan child who did not have any overt signs and symptoms of intestinal obstruction, like recurrent vomiting, abdominal distention, and weight loss.

5p vitiki 30-01-2024 5 2   Download

Ebook "Gelled bicontinuous microemulsions: A new type of orthogonal self-assembled systems" is essential to understand the properties of and structures formed in a system combining microemulsion components and a gelator. This PhD thesis by Michaela Laupheimer provides an in-depth discussion of the phase behavior and sol-gel transition of a microemulsion gelled by a low molecular weight gelator as well as the rheological behavior of a gelled bicontinuous microemulsion.

176p nhanphanguyet 28-01-2024 4 2   Download

"Standard Specification for High-Strength Low-Alloy Structural Steel" covers high-strength low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction intended primarily for use as structural members where savings in weight [mass] or added durability are important. The atmospheric corrosion resistance of the steel in most environments is substantially better than that of carbon structural steels with or without copper addition. When properly exposed to the atmosphere, this steel can be used bare (unpainted) for many applications.

3p hth_hn_vn 10-12-2023 9 4   Download

This specification covers high-strength low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction but intended primarily for use in welded bridges and buildings where savings in weight or added durability are important. The atmospheric corrosion resistance of this steel in most environments is substantially better than that of carbon structural steels with or without copper addition (see Note 1). When properly exposed to the atmosphere, this steel is suitable for many applications in the bare (unpainted) condition.

3p hth_hn_vn 10-12-2023 7 5   Download

This specification covers high-strength, low-alloy, hotand cold-rolled sheet and strip in cut lengths or coils, intended for use in structural and miscellaneous purposes, where savings in weight or added durability are important. These steels have enhanced atmospheric corrosion resistance and are supplied in two types: Type 2 contains 0.20 % minimum copper based on cast or heat analysis (0.18 % minimum Cu for product check).

4p hth_hn_vn 10-12-2023 8 6   Download

This specification covers high-strength, low-alloy, hotrolled steel sheet and strip and cold-rolled sheet having improved formability when compared with steels covered by Specifications A 606 and A 607. The product is furnished as either cut lengths or coils and is available in four-strength levels, Grades 50, 60, 70, and 80 (corresponding to minimum yield strength (see Table 1)). The steel is killed, made to a fine grain practice, and includes microalloying elements such as columbium, titanium, vanadium, zirconium, etc. The steel may be treated to achieve inclusion control.

3p hth_hn_vn 10-12-2023 6 4   Download

In this study, the efficiency of wastewater treatment by synthetic CPAM and commercial CPAM C4008 was analyzed by indicators of chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS), and turbidity. The surface structure of the obtained sludge was analyzed by scanning electron microscopy (SEM).

8p vijeff 30-11-2023 6 2   Download

Part 1 book "Advances in small animal total joint replacement" includes content: The history of joint replacement in veterinary surgery; implant materials - structural; implant materials - surface coating, weight bearing surfaces, methods of immediate fixation, biomechanical considerations in total hip replacement.

80p oursky08 01-11-2023 3 1   Download

Ebook "Polymer chemistry: The basic concepts" provides a well-rounded and articulate examination of polymer properties at the molecular level. It focuses on fundamental principles based on underlying chemical structures, polymer synthesis, characterization, and properties.

736p loivantrinh 29-10-2023 5 2   Download

Polyvinyl alcohol (PVA) polymer mixed with different weight ratios of 1-ethyl-3- methyltricynomethanide (EMIm-TCM) ranging from 0 to 30 wt% were used to develop solid polymer electrolytes (SPEs). The structural, electrical, and electrochemical properties of the SPEs films were extensively studied.

6p viberbers 09-08-2023 5 4   Download

Z-scheme Ag2WO4/BiOBr heterojunction with rich oxygen vacancies was successfully synthesized by the simplest hydrothermal method, which was systematically characterized in the structural, optical and electronic properties. The photocatalytic applications of Z-scheme Ag2WO4/BiOBr heterostructure with different weight percentages of Ag2WO4 were studied.

12p viberbers 09-08-2023 5 3   Download