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Direct materials
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Part 1 book "Electrical power equipment maintenance and testing" included contents: Maintenance strategies, dielectric theory, insulating materials, failure modes, and maintenance impact on arc flash hazards; direct current voltage testing of electrical equipment; power factor and dissipation factor testing methods; insulating oils, fluids, and gases chapter 5. transformers; cables and accessories; medium voltage switchgear and circuit breakers.
468p
dianmotminh04
12-07-2024
0
0
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The research results are aimed at providing materials for use in training engineers specializing in urban environmental engineering. It is also a reference for engineers who directly perform operational management at waste power plants or scientists and managers interested in research in the field of domestic solid waste management.
6p
viwalton
02-07-2024
1
1
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Part 1 of ebook "Reinforced concrete: Mechanics and design (Third edition)" is a perfect text for professionals in the field who need a comprehensive reference on concrete structures and the design of reinforced concrete. Reinforced concrete design encompasses both the art and science of engineering. Part 1 of this book presents the theory of reinforced concrete as a direct application of the laws of statics and mechanics of materials.
490p
mothoiphong
28-06-2024
2
1
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Part 1 of ebook "Applied strength of materials (Sixth edition SI units version)" provides readers with contents including: Chapter 1 - Basic concepts in strength of materials; Chapter 2 - Design properties of materials; Chapter 3 - Direct stress, deformation, and design; Chapter 4 - Design for direct shear, torsional shear, and torsional deformation; Chapter 5 - Shearing forces and bending moments in beams; Chapter 6 - Centroids and moments of inertia of areas;...
412p
mothoiphong
28-06-2024
1
1
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In this article, we explore the fundamental characteristics and mechanisms underlying the self-healing properties of bone tissue. In certain instances of trauma or pathological conditions resulting in bone defects, the natural healing process may be insufficient.
7p
vikoch
27-06-2024
2
1
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In this work, the rGO/polyacrylic acid (rGO/PAA) composite film was synthesized using the 3D direct ink writing technique with GO/acrylic acid (GO/AA) ink and UV irradiation. Results show that after a UV irradiation time of 3.6 seconds, GO was reduced into rGO, and AA was polymerized into PAA.
8p
visergeyne
18-06-2024
2
0
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In the present work, investigation is carried out on these compounds on how the change in structure symmetry influences the opto-electronic and thermoelectric properties and enhances as going from P4/nmm to P62 m symmetry with addition of replacing Ca by Sr and Ba.
10p
visergeyne
18-06-2024
1
0
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This article examines the impact of the flipped classroom (FC) model on student engagement and autonomy in a Research Methods course for second-year ELT students in Vietnam, framed by Self-Determination Theory (SDT).
6p
viambani
18-06-2024
2
0
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The buckling and post-buckling of magneto-electric-elastic (MEE) sandwich plate are presented. The core layer consists of epoxy matrix reinforced with graphene origami auxetic metalmaterial in which the volume fraction of graphene origami is assumed to vary the thickness direction in three different distributions.
12p
viambani
18-06-2024
2
1
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Part 2 book "Basic structures for engineers and architects" includes content: Method of sections; graphical method; shear force and bending moments; this thing called stress; direct (and shear) stress, bending stress, combined bending and axial stress, structural materials - steel, timber and masonry; more on materials; how far can I span, calculating those loads.
153p
dianmotminh03
03-06-2024
2
1
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Ebook "Simple solar homesteading" is for anyone who is thinking about or already living off grid and wants to learn how to build simple solar homesteading projects to make life easier. Included in this book are complete plans for several projects and all plans include pictures, step by step directions, cost and material list. Also included is an invaluable resource list for homesteaders to find just about anything they need under the sun.
97p
dongmelo
26-05-2024
4
3
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In this paper, the free vibration of a bi-directional functionally graded (2D-FG) nanobeams is investigated by the finite element method. Nanobeams are made of two kinds of porous materials. The material properties of 2D-FG nanobeams are assumed to vary in both axial and thickness directions according to a power law . Based on Eringen's nonlocal elasticity theory, the governing equations of motion are derived.
10p
dathienlang1012
03-05-2024
0
0
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This work focuses on the free vibration of the functionally graded porous (FGP) sandwich microplates using the isogeometric approach (IGA). The FGP sandwich plate comprises the homogeneous core and the FG porous face sheets. The material properties of the FGP face sheets are supposed to vary through the thickness direction according to the power-law function and modified rule of a mixture of the volume fraction with three different types of porosity distribution: homogeneous porous, X porous and V porous distributions.
11p
dathienlang1012
03-05-2024
2
0
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The paper "Nonlinear vibration of functionally graded porous micro-beams resting on elastic foundation" presents the analysis of nonlinear vibration of functionally graded porous (FGP) micro-beams resting on an elastic foundation. The Euler-Bernoulli beam theory (EBT) and the nonlocal strain gradient theory (NSGT) are considered to establish the equations of motion of the micro-beam. The material properties of the micro-beam are assumed to be changed continuously along thickness direction according to simple power-law distribution.
9p
dathienlang1012
03-05-2024
1
0
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Part 2 book "Automotive exhaust emissions and energy recovery" includes contents: Exhaust gas aftertreatment technologies and model based optimization, diesel particulate filter overview - material, geometry and application, turbocharging and exhaust energy recovery; small, high power density, directly injected, turbocharged engines; organic rankine cycles in automotive applications; automotive exhaust power and waste heat recovery technologies.
163p
dianmotminh01
14-05-2024
1
0
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This study investigates the inspiring leadership values in building an excellent inclusive higher education, including proactiveness, high-spiritedness, visionary, and humanist mindset. This was a case study where data were collected through in-depth interviews, direct observation, document analysis, and audiovisual material observation.
11p
viarnault
25-04-2024
1
1
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Ebook "Insights into the chemistry of organic structure-directing agents in the synthesis of zeolitic materials" covers the main aspects of the use of organic molecules as structure-directing agents for the synthesis of zeolites, including first an introduction of the main concepts, then two chapters covering state-of-the-art techniques currently used to understand the structure-directing phenomenon (location of molecules by XRD and molecular modeling techniques).
255p
tracanhphuonghoa1007
22-04-2024
2
2
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This paper presents a finite element model for dynamic analysis of axial functionally graded (AFG) microbeams subjected to a moving mass. The material properties of the microbeams are considered to vary in the axial direction by a power-law function, and they are evaluated by Mori-Tanaka scheme.
12p
viohoyo
25-04-2024
2
2
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This article studies the imbalance in the North-South transportation system, the direction of Vietnam Government on High-Speed Rail development, thereby evaluating the benefits and challenges, providing valuable reference material for project refinement.
6p
vijaychest
24-04-2024
6
2
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Ebook "Fibrous and textile materials for composite applications" focuses on the fibers and textiles used in composite materials. It presents both existing technologies currently used in commercial applications and the latest advanced research and developments. It also discusses the different fiber forms and architectures, such as short fibers, unidirectional tows, directionally oriented structures or advanced 2D- and 3D-textile structures that are used in composite materials.
400p
tudohanhtau1006
29-03-2024
2
2
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