Good Harmony Research Articles

Finite element model updating effect on thestructural behavior of long span concrete highway bridges

In this paper, it is aimed to determine the finite element model updating effects on the structural behavior of long span concrete highway bridges. Birecik Highway Bridge located on the 81stkm of Sanlurfa-Gaziantep state highway over Firat River in Turkey is selected as a case study. The bridge consist of fourteen spans, each of span has a nearly 26m. The total bridge length is 380m and width of bridge is 10m. Firstly, the analytical dynamic characteristics such as natural frequencies and mode shapes are attained from finite element analyses using SAP2000 program. After, experimental dynamic characteristics are specified from field investigations using Operational Modal Analysis method. Enhanced Frequency Domain Decomposition method in the frequency domain is used to extract the dynamic characteristics such as natural frequencies, mode shapes and damping ratios. Analytically and experimentally identified dynamic characteristics are compared with each other and finite element model of the bridge is updated to reduce the differences by changing of some uncertain parameters such as section properties, damages, boundary conditions and material properties. At the end of the study, structural performance of the highway bridge is determined under dead load, live load, and dynamic loads before and after model updating to specify the updating effect. Displacements, internal forces and stresses are used as comparison parameters. From the study, it is seen that the ambient vibration measurements are enough to identify the most significant modes of long span highway bridges. Maximum differences between the natural frequencies are reduced averagely from %46.7 to %2.39 by model updating. A good harmony is found between mode shapes after finite element model updating. It is demonstrated that finite element model updating has an important effect on the structural performance of the arch type long span highway bridge. Maximum displacements, shear forces, bending moments and compressive stresses are reduced %28.6, %21.0, %19.22, and %33.3-20.0, respectively.

Disciplina della parola, educazione del cittadino. Analisi del Liber de doctrina dicendi et tacendi di Albertano da Brescia

Between the 12th and the 13th century the institutional evolution that took place in the Italian Communes determines a change into the communicative practices. This phenomen was accompanied by a new consideration of speech. This paper examines the Liber de doctrina dicendi et tacendi, written by Albertanus of Brescia in 1245. According to this author, in order to guarantee common good and civil harmony, the power of language to affect both society and individuals requires rules and regulations that lead people to an ethical use of the speech.

경사지형을 활용한 자연형 테라스하우스의 건축계획에 관한 연구 - 판교 국제현상설계경기지구 월든힐스 1단지를 중심으로 -

Nevertheless, 64.8% of our land is located in the hill side, apartment oriented development -which used to construct in flat land- applied to the sloped terrain without considering topographical characteristics and this brought disruption of natural landscape and environment. The solution to this problem, terrace house is the best residential type for preserving sloped terrain and makes good harmony with the surrounding landscape. Housings in Worlden Hills 1 Complex are distributed organically along the irregular contours and correspond with existing natural environment. This complex is consisting of only terrace house residential type in accordance with topographical characteristics. In this respect, Worlden Hills 1 Complex terrace house is determined as worthy of study because it is the first terrace house in Korea which emerged from existing residential format by using sloped terrain and natural landscape. First, housing distribution is linked organically in curved shape and placed in accordance with the natural landscape. Second, floor plan types can be classified into 3 types depend on the contour line. Third, according to the terrace type, people can access from everywhere and they can have their own terrace by dividing room and living room. The last, to adapt sloped topography, deploy single-story terrace house type or maisonette terrace house type in accordance with the slop angle. And furthermore, narrower angle of fan-shaped plan types applied in swirling contour to link organically.

Equation of state of nuclear matter from empirical constraints

From empirically determined values of some of the characteristic constants associated with homogeneous nuclear matter at saturation and sub-saturation densities, within the framework of a Skyrme-inspired energy density functional, we construct an equation of state (EoS) of nuclear matter.This EoS is then used to predict values of density slope parameters of symmetry energy $L(\rho)$, isoscalar incompressibility $K(\rho)$ and a few related quantities. The close consonance of our predicted values with the currently available ones for the density dependence of symmetry energy and incompressibility gleaned from diverse approaches offers the possibility that our method may help in settling their values in tighter bounds. Extrapolation of our EoS at supranormal densities shows that it is in good harmony with the one extracted from experimental data.

New mixed ligand oxorhenium(V) complexes of 3-thiapentane-1,5-dithiolato with 2-thiocytosine and 5-amino-1,3,4-thiadiazole-2-thiol: Experiment and theory

By using η3-(SCH2CH2SCH2CH2S) (SSS), 2-thiocytosine (HL1) and 5-amino-1,3,4-thiadiazole-2-thiol (HL2) as S-donor ligands two ‘3+1’ mixed ligand red oxorhenium(V) complexes of the type [ReO(SSS)(HL1)]Cl (1Cl) and [ReO(SSS)(L2)] (2) have been synthesized. Both 1Cl and 2 have been characterized by C, H and N microanalyses, 1H NMR, FT-IR, UV–Vis spectra and conductivity measurements. The X-ray crystal structures of both 1Cl and 2 have been determined. Electrochemical studies of 1Cl in acetonitrile show four successive one-electron redox couples; while 2 in DMSO displays only two one- electron redox steps. A computational and conceptual Density Functional Theory (DFT) studies have been performed on various (3+1) complexes of Re(V). The fully-optimized complexes, 1Cl and 2, adopt geometries that satisfactorily corroborate the X-ray structures. Subsequently these optimized structures were employed to investigate systematically the relative stabilities of various Re(V) complexes with varying ligands having N, O and S donor atoms. The electronic properties of 1Cl and 2 were delved into employing the hybrid STMP TD-DFT method and the results were found to be in good harmony with the experimental observations.

Spectroscopic (FT-IR, Raman, NMR and UV–vis.) and quantum chemical investigations of (E)-3-[4-(pentyloxy)phenyl]-1-phenylprop-2-en-1-one

In this study, the molecular structure and vibrational and electronic transition spectra and 1H and 13C NMR chemical shift values (gas phase and in chloroform solvent), HOMO–LUMO analysis, molecular electrostatic potential (MEP), thermodynamic properties and Mulliken atomic charges of (E)-3-[4-(pentyloxy)phenyl]-1-phenylprop-2-en-1-one molecule, C20H22O2, which has many biological activities have been calculated using the DFT/B3LYP method with 6-311++G(d,p) basis set in the ground state. The obtained results indicate a good harmony among the calculated and the experimental FT-IR, Raman, UV–vis. (in methanol solvent) and 1H and 13C NMR (in chloroform-d solvent) spectra of the mentioned compound.

Ortodoncia y cirugía maxilofacial: un equipo multidisciplinario. Presentación de un caso clínico

Dentofacial anomalies cause disharmony in the maxilla and the mandible with consequences in facial esthetics and masticatory function. As surgeries and osteotomies became more complex the need for cooperation between the orthodontist and the maxillofacial surgeon became more evident. A case report of a 1 year and 8 months treatment time of an 18-year-old patient, with skeletal class III malocclusion, anterior crossbite and posterior unilateral crossbite, upper incisor proclination and lower incisor retroclination, and vertical growth is hereby presented. A treatment plan was set out with surgical-orthodontic treatment which is divided in three phases: first presurgical phase with 0.022×0.028 Roth system and arch sequence, second surgical phase performing a triple surgery: Le Fort I for maxillary advancement, with segmental surgery on the left side and vertical osteotomy of the mandibular ramus for mandible repositioning. A good facial harmony and improvement of the skeletal and dental relationship were obtained but most importantly, neuromuscular regulation improvement and stomatognathic function. ConclusionThe satisfactory results in combined orthodontic and orthognathic surgery treatments depend on a good diagnosis and treatment plan of the dentofacial deformity, as well as on good knowledge integration between the professionals involved in the case.

Orthodontics and maxillofacial surgery: an interdisciplinary team. Case Report

Dentofacial anomalies cause disharmony in the maxilla and the mandible with consequences in facial esthetics and masticatory function. As surgeries and osteotomies became more complex the need for cooperation between the orthodontist and the maxillofacial surgeon became more evident. A case report of a 1 year and 8 months treatment time of an 18-year-old patient, with skeletal class III malocclusion, anterior crossbite and posterior unilateral crossbite, upper incisor proclination and lower incisor retroclination, and vertical growth is hereby presented. A treatment plan was set out with surgical-orthodontic treatment which is divided in three phases: First presurgical phase with 0.022×0.028 Roth system and arch sequence, second surgical phase performing a triple surgery: Le Fort I for maxillary advancement, with segmental surgery on the left side and vertical osteotomy of the mandibular ramus for mandible repositioning. A good facial harmony and improvement of the skeletal and dental relationship were obtained but most importantly, neuromuscular regulation improvement and stomatognathic function. ConclusionThe satisfactory results in combined orthodontic and orthognathic surgery treatments depend on a good diagnosis and treatment plan of the dentofacial deformity, as well as on good knowledge integration between the professionals involved in the case.

Russland og den svensk-norske «dualisme» (1814-1905)

Russia and Swedish-Norwegian «dualism» (1814-1905) Swedish military aid in defeating Napoleon and Russian support for Swedish plans to obtain Norway from Denmark comprised the essence of the «Russian-Swedish Treaty of St. Petersburg» in 1812. The treaty was confirmed by a meeting between Crown Prince Karl Johan and Tsar Alexander I in Abo during that same autumn, at a time when Napoleon was making swift advances into Russia with his Grande Armee. «The ties of friendship and good harmony» mentioned in the treaty continued officially even after The Napoleonic Wars, throughout Karl Johan's reign and right up to the Crimean War. In this connection it seems legitimate to ask: did Russia's friendship with Sweden also come to include Norway? From what date are we justified in referring to Russian-Norwegian relations as something separate from Russian-Swedish relations? And what role did Russia play in relation to the Swedish-Norwegian Union, which Alexander I had helped to establish? These are questions that the present article will try to answer.

Conjugate heat transfer in a duct with an axially varying heat flux

In this numerical study, steady laminar conjugate heat transfer of in a tube subjected to an axially varying heat flux at the outer wall is investigated using the finite volume method. The effects of the thermal conductivity ratio, the diameter ratio and the dimensionless amplitude of the axially varying or periodic heat flux on the local and mean Nusselt numbers as well as on the temperature and the interface heat flux distribution are determined for a range of corresponding parameters. Results obtained for some limiting cases are found to be in a good harmony with those given in the literature.

Mixing frequency induces [WO4]2− generating blue luminescence

In the process of investigating end-pumped continuous intra-cavity Raman laser, a strong blue luminescence at wavelength 473 nm (nanometer) in pure [XO4]2− (X = W, Y, …) has been observed. This luminescence is strange and inconsistent with the traditional single up-conversion luminescence theory, scintillation theory. Basing on the optics theory and scintillation crystal theory, we suggest a “mixing frequency inducing blue emission” mechanism to explain the phenomenon. The mixing wavelength 473.4 nm with the four wavelengths of 808, 890, 912, and 1.064 nm stimulates and induces the blue emission of the [WO4]2−. The mechanism is in good harmony with the experiment.

Identification of Historical Veziragasi Aqueduct Using the Operational Modal Analysis

This paper describes the results of a model updating study conducted on a historical aqueduct, called Veziragasi, in Turkey. The output-only modal identification results obtained from ambient vibration measurements of the structure were used to update a finite element model of the structure. For the purposes of developing a solid model of the structure, the dimensions of the structure, defects, and material degradations in the structure were determined in detail by making a measurement survey. For evaluation of the material properties of the structure, nondestructive and destructive testing methods were applied. The modal analysis of the structure was calculated by FEM. Then, a nondestructive dynamic test as well as operational modal analysis was carried out and dynamic properties were extracted. The natural frequencies and corresponding mode shapes were determined from both theoretical and experimental modal analyses and compared with each other. A good harmony was attained between mode shapes, but there were some differences between natural frequencies. The sources of the differences were introduced and the FEM model was updated by changing material parameters and boundary conditions. Finally, the real analytical model of the aqueduct was put forward and the results were discussed.

Longitudinal measurement of chromatic dispersion along an optical fiber transmission system with a new correction factor

At present existence OTDR based techniques have become a standard practice for measuring chromatic dispersion distribution along an optical fiber transmission link. A constructive measurement technique has been offered in this paper, in which a four wavelength bidirectional optical time domain reflectometer (OTDR) has been used to compute the chromatic dispersion allocation beside an optical fiber transmission system. To improve the correction factor a novel formulation has been developed, which leads to an enhanced and defined measurement. The investigational outcomes obtained are in good harmony.

Analysis and PIC simulation of a Gyrotron travelling wave tube amplifier

The analysis of a Ka-band gyrotron Travelling Wave Tube (gyro-TWT) amplifier using a uniform cylindrical waveguide as its interaction circuit has been presented for the TE01 mode of operation a self-consistent nonlinear analysis in the large signal regime. The analysis predicts that the saturated peak output power of ~ 134 kW with a power conversion efficiency of ~ 22.7 %. The saturated gain has been calculated as ~ 41.3 dB for the amplifier driven by 72 kV, 8.2 A electron beam of a pitch factor 1.05. The critical interaction length of smooth wall uniform metal guide is found 10.7 cm for the stable amplifier operation. The form factor and the norm factor have also been estimated with the large signal non-linear code. Further, for 5% spread the amplifier develops the peak power of ~ 128 kW with an electronic efficiency of ~ 21.7 % and the gain of ~ 41.07 dB. These results are found to be good harmony when the beam wave interaction is studied with a commercial 3-D electromagnetic particle in cell (PIC) code. The behaviour of the beam all over the length of the interaction circuit has been monitored by calculating its energy, momentum, phase, etc. with the help of a commercial PIC code and which also in good agreement with analytical results with 1% deviation.

Characteristics of blended cements containing nano-silica

The aim of the present work is to evaluate the effect of nano-silica (NS) on physico-chemical, compressive and flexural strengths of OPC-granulated slag blended cement pastes and mortars. Different mixes were made with various amounts of NS, OPC and granulated blast-furnace slag (GBFS) and hydrated for 3, 7, 28 and 90days. The hydration behavior was followed by estimation of free lime (FL) and combined water content at different curing ages. The required water for standard consistency, setting times and compressive strength was also determined. The results obtained were confirmed by XRD, DTA, IR and SEM techniques. The required water for standard consistency and setting times increases with NS content due to the presence of 1% of superplasticizer. As the NS content increases the values of both FL and pH decrease. The compressive and flexural strengths of cement mortars containing NS are higher than those of control OPC–GBFS mix (M3). As the NS content increases above 4mass% NS, compressive and flexural strengths of OPC–GBFS–NS blends decrease but still more than those of the control samples (M3). The results of XRD, DSC, IR and SEM examinations are in good harmony with each other and with chemical analyses. The composite OPC–GBFS–NS cements containing 45mass% of GBFS and 3–4mass% of NS possess the highest improvement of mechanical properties, hydration kinetics and microstructure of hardened cement pastes and mortars.

Proposal for Integration of Bioethics in Phase I Undergraduate Medical Curriculum in India

Bioethics is now regarded as an integral part of contemporary medical education across the world. This proposal of integration of Bioethics in phase one undergraduate medical curriculum is, to bridge the gap between classroom learning, bedside application and further in community practice to give better health care and a good harmony between Doctors and Society. This aims in covering the curricular approaches in order to enforce values of bioethical principles in medical practice.

France : la formation des enseignant en échec

The French today school was born with the French revolution, then with the establishment of the republic. It was for a long time in a good harmony with the French nation. The school was the guarantee for equality to accede to education. Yet, since some decades, French education evolution knows ups and downs, like other countries. Especially, the teacher training system is labouring to find the structure corresponding to the real needs of the school which must answer to several cultural and social challenges. Since 1989, the teacher training structure had been concerned with three reforms of first importance. With the coming of a left government in 2012, a new reform is coming very soon. The new political power seems to have understood that change for a better education will not pass through the only teacher training system reform, but through general structural reforms. Thinking over refondation of school is engaged since September of the present year.

Hybridizing Harmony Search Algorithm with Multi-Parent Crossover to Solve Real World Optimization Problems

Harmony search algorithm (HSA) is a recent evolutionary algorithm used to solve several optimization problems. The algorithm mimics the improvisation behaviour of a group of musicians to find a good harmony. Several variations of HSA have been proposed to enhance its performance. In this paper, a new variation of HSA that uses multi-parent crossover is proposed (HSA-MPC). In this technique three harmonies are used to generate three new harmonies that will replace the worst three solution vectors in the harmony memory (HM). The algorithm has been applied to solve a set of eight real world numerical optimization problems (1-8) introduced for IEEE-CEC2011 evolutionary algorithm competition. The experimental results of the proposed algorithm are compared with the original HSA, and two variations of HSA: global best HSA and tournament HSA. The HSA-MPC almost always shows superiority on all test problems.

Biodegradable stents: truly biodegradable with good tissue harmony

Biodegradable stents: truly biodegradable with good tissue harmony

Release of severe post-burn contracture of the first web space using the reverse posterior interosseous flap: Our experience with 12 cases

We retrospectively assessed outcomes after treating severe contractures of the first web space from burns with the reverse posterior interosseous flaps (RPIF). Twelve consecutive patients (ages 18–58 years) with burns from 10% to 70% (mean, 30.1%) total body surface area and severe contractures of the first web space of the hand (initial thumb to index angles from 10° to 35° [mean, 23°]) underwent contracture release using the RPIF. Seventeen RPIFs were used, with sizes from 9cm×6cm to 14cm×10cm (mean area, 83.6cm2). The patients were followed for 5–26 months. All flaps survived completely, rapidly adapted to the recipient beds, and achieved good color and texture harmony. No early complications occurred. Fifteen donor sites were closed with skin grafts. Two donor sites were closed by direct suture. No paralysis of the posterior interosseous nerve was observed in these cases. At last follow-up the mean thumb to index angle was 78°, increasing the web length 260%. All patients regained fundamental hand functions. The RPIF is reliable and safe for releasing severe contractures of the first web space of the hand after burn, with distinct advantages over currently used alternative methods.