Mechanical bonding

In the present report, a novel concept of frequency response function (FRF) is introduced for piezoelectric beam. First, a model of Timoshenko beam bonded with a piezoelectric layer is established and used for deriving the conventional frequency response function acknowledged as mechanical frequency response function (MERF). Then, the output charge produced in the piezoelectric layer is calculated from the MFRF and therefore obtained frequency-dependent function is called electrical frequency response function (EFRF) for the integrated beam.

16p dianmotminh02 03-05-2024 6 2   Download

This research focuses on Fibre Cement Felts (FCF), which is a non-woven textile substrate acting as a conveyor belt for the manufacturing of Fibre Cement Sheets (FCS). Fibre Cement Felts are a valued component required in the manufacturing process of Fibre Cement Sheets, used in construction for today’s building industry. Identifying the key factors that most influence FCF will assist in understanding of the relationship between fibre diameters, carded web, and mechanical bonding.

137p runthenight07 01-03-2023 7 3   Download

The main aim of this study is to investigate utilising root-like architectures to improve the interfacial strength of pin-integrated hybrid composite-metal structures. Joints are critical elements in aircraft structures and require special consideration due to their vital role in the structural integrity of airframes. Although bonded and bolted systems are used commonly in engineering applications, pinning technologies have shown tremendous potential for hybrid joints.

198p runthenight04 02-02-2023 6 2   Download

Goals of the thesis: Preparing of zirconia/silane combined films on steel subtrate for organic coatings to replace phosphate and chromate pretreatment; Proposing the mechanism of film formation process and assessing characteristics of morphology, composition, electrochemical properties and bonding of the zirconia/silane film.

27p extraenglish 24-05-2021 21 5   Download

Preparing of zirconia/silane combined films on steel subtrate for organic coatings to replace phosphate and chromate pretreatment; proposing the mechanism of film formation process and assessing characteristics of morphology, composition, electrochemical properties and bonding of the zirconia/silane film.

27p larachdumlanat129 20-01-2021 36 4   Download

Preparing of zirconia/silane combined films on steel subtrate for organic coatings to replace phosphate and chromate pretreatment. Proposing the mechanism of film formation process and assessing characteristics of morphology, composition, electrochemical properties and bonding of the zirconia/silane film.

27p trinhthamhodang7 31-08-2020 19 3   Download

This paper was carried out with the purpose of reviewing, classifying and testing the existing methods for determination the Bond Ball Mill Index.

15p lucastanguyen 01-06-2020 20 2   Download

The purpose of this paper is to explore the effect of tripartite social capital (bonding, bridging and linking) on managers’ resilience building and to examine the underlying mechanism through which these relationships exist.

18p tocectocec 24-05-2020 14 2   Download

Quantum Mechanics and the Hydrogen Atom, Many-Electron Atoms and Chemical Bonding, Molecular Orbitals, Spectroscopy, and Chemical Bonding,... as the main contents of the lesson lecture 9 "Tentative material to be covered for Exam 2". Invite you to consult the lesson for more documents serving the academic needs and research.

38p nguyenphong201 11-12-2015 35 2   Download

The Elastomeric Alloy (EA) materials based on polypropylene (PP) and Vietnam waste Rubber Powder (RP) has been prepared in internal mixer of Haake in melting state with peroxide initiator. Dynamically stabilizing process at presence of radical donor and acceptor systems has leaded to form chemical bonds on the surface between two phases of surspending rubber powder and PP matrix and then to form intermediate phase surrounding Rubber Particles and making EA higher dense than that of materials by simple mixing RP and PP without networking.

5p uocvong03 24-09-2015 32 6   Download

Two chemical treatments were applied to jute fibers to create a better bonding of fiber to resin in natural composite materials. The jute fibers have been treated with hydroxide potassium (KOH) and a bleaching agent, canxi hypochlorite (Ca(OCl)2.4H2O), in varying periods. Characterization techniques such as FT-IR, SEM were used to evaluate the effect of chemical treatments on fiber structure. After treatment the surface topography of jute was clean and microfibrils were revealed, these lead to an enhancement in mechanical properties and interfacial strength between jute fiber and PP.

8p uocvong01 24-09-2015 71 7   Download

In the present article, we address the question that how important role do the Quantum Mechanic (QM) and Molecular Mechanics (MM) forces play in ligand docking on protein, via the use semi-quantum relaxation approach (SQRA) using different forces, e.g. quantum, Van der Waals and Coulomb ones, in the process of ligand - protein docking. The QM approximation is applied to calculate the QM forces of neighbor protein-atoms acting on ligands. The L-J 6-12 empirical potential model and Coulomb rule are applied to calculate the forces from the rest protein-atoms on each ligand - atom.

11p uocvong01 24-09-2015 62 4   Download

Recent years have witnessed high levels of activity in identifying enzyme systems that catalyse H-transfer by quantum tunneling. Rather than being restricted to a small number of specific enzymes as perceived initially, it has now become an accepted mechanism for H-transfer in a growing number of enzymes. Furthermore, H-tunneling is driven by the thermally induced dynamics of the enzyme. In some of those enzymes that break stable C–H bonds the reaction proceeds purely by quantum tunneling, without the need to partially ascend the barrier.

7p system191 01-06-2013 40 3   Download

T4DNA ligase is an Mg 2+ -dependent andATP-dependent enzyme that seals DNA nicks in three steps: it covalently binds AMP,transadenylates the nick phosphate,and cata-lyses formation of the phosphodiester bond releasing AMP.

11p tumor12 20-04-2013 45 7   Download

High-resolution crystal structures of large ribosomal subunits from Deinococcus radioduranscomplexed with tRNA-mimics indicate that precise substrate positioning, mandatory for efficient protein biosynthesis with no further conformational rearrangements, is governed by remote interactions of the tRNA helical features.

14p fptmusic 16-04-2013 41 3   Download

Cytochrome P450 enzymes promote a number of oxidative biotransformations including the hydroxylation of unacti-vated hydrocarbons.

26p awards 05-04-2013 44 7   Download

Inactivation of factor Va (FVa) by activated protein C (APC) is a predominant mechanism in the down-regulation of thrombin generation. In normal FVa, APC-mediated inactivation occurs after cleavage at Arg306 (with corres-pondingrate constantk¢306) or after cleavage at Arg506 (k506 ) and subsequent cleavage at Arg306 (k306). We have studied the influence of heparin on APC-catalyzed FVa inactivation by kinetic analysis of the time courses of inac-tivation. Peptide bond cleavage was identified by Western blottingusingFV-specific antibodies. ...

13p dell39 03-04-2013 41 4   Download

During anaerobic cobalamin (vitamin B12) biosynthesis, CbiL catalyzes methylation at the C-20 position of a cyclic tetrapyrrole ring usingS-aden-osylmethionine as a methyl group source. This methylation is a key modifi-cation for the ring contraction process, by which a porphyrin-type tetrapyrrole ring is converted to a corrin ring through elimination of the modified C-20 and direct bonding of C-1 to C-19.

11p inspiron33 23-03-2013 35 2   Download

Alter the appearance, aroma, texture and flavor of a product. Deliver nutrients more effectively to the body or to make a food that is difficult to digest a bit easier to swallow. Accelerate the good fermentation time, giving a finished product in weeks instead of months.

36p zingzing09 21-10-2012 101 19   Download

Many enzymes are added to grain feeds in order to convert some of the indigestible carbohydrates acting only as dietary fiber to accessible energy sources. amylases and glycases

24p zingzing09 21-10-2012 83 9   Download