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METHODS OF NON-DESTRUCTIVE WOOD TESTING Fig. 2. X-ray tomography of spruce with knots (different distance from the surface) 2.2. Thermography: The thermography allows the detection of defects near the surface (approx. 1mm). The delamination of surface material is detectable (Fig. 3). Fig. 3. Thermography (left) and photography (right) of spruce with knots 2.3. Strain distribution measured with Video Image Correlation With Video Image Correlation, a visualisation of the strain field at the surface (produced by swelling, shrinking, mechanical stress) is possible (Fig. 4, 5). Fig 4. Dimensional deformation due to swelling on the longitudinal-radial surface of a spruce disk (L: 5 cm, R: 5cm, T: 5 mm). (a) The spruce sample without paint coating. (b) The same sample with a grey speckle pattern applied to the surface by airbrush. 164
WOOD SCIENCE FOR CONSERVATION OF CULTURAL HERITAGE Fig. 5. Shear strain distribution in a cross laminated sold wood panel under mechanical load 2.4. Sound velocity measurements Measuring the ultrasound velocity make calculating elastic constants (MOE; G) possible. Detecting knots and small defects, however, is difficult in most cases (Fig. 6, 7, 8). Fig. 6: Ultrasound testing equipment (Sylvatest 2) Fig. 8 Acoustic tomography of spruce with knots 165 Fig. 7: Sound propagation in a spruce sample with various holes
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Proceedings e report 67
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Wood science for conservation of cu
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SUMMARY Introduction ..............
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WOOD SCIENCE FOR CONSERVATION OF CU
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INTRODUCTION These proceedings of a
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(A) MATERIAL PROPERTIES
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SORPTION OF MOISTURE AND DIMENSIONA
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VIBRATIONAL PROPERTIES OF TROPICAL
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CREEP PROPERTIES OF HEAT TREATED WO
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MEASUREMENT OF THE ELASTIC PROPERTI
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ELASTIC PROPERTIES OF MINUTE SAMPLE
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4. Results Young's modulus (10^4 Mp
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PREDICTION OF LINEAR DIMENSIONAL CH
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DIMENSIONAL CHANGE OF UNRESTRICTED
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DIMENSIONAL CHANGE OF UNRESTRICTED
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AGEING OF WOOD - DESCRIBED BY THE A
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90 30 0 3,0E-03 - 2,0E 2,0E-03 - 1,
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4. Application HYGRO-LOCK INTEGRATI
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RESEARCH ON THE AGING OF WOOD IN RI
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RESEARCH ON THE AGING OF WOOD IN RI
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Xylarium Database RESEARCH ON THE A
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AGING WOOD FROM CULTURAL PROPERTIES
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AGING WOOD FROM CULTURAL PROPERTIES
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STRENGTH AND MOE OF POPLAR WOOD (PO
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STRENGTH AND MOE OF POPLAR WOOD ACR
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STRENGTH AND MOE OF POPLAR WOOD ACR
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PHOTODEGRADATION AND THERMAL DEGRAD
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ROMANIAN WOODEN CHURCHES WALL PAINT
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DISINFECTION AND CONSOLIDATION BY I
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3. Results and discussion WOOD SCIE
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FUNGAL DECONTAMINATION BY COLD PLAS
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STUDIES ON INSECT DAMAGES OF WOODEN
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Page 121 and 122: TERMITE INFESTATION RISK IN PORTUGU
Page 127 and 128: BIODETERIORATION OF CULTURAL HERITA
Page 131 and 132: 4. Causes of biodeterioration WOOD
Page 133 and 134: DEGRADATION OF MELANIN AND BIOCIDES
Page 139 and 140: MOULD ON ORGANS AND CULTURAL HERITA
Page 157 and 158: RESEARCH STUDY ON THE EFFECTS OF TH
Page 159 and 160: 4. Methodology WOOD SCIENCE FOR CON
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Page 165 and 166: NON DESTRUCTIVE IMAGING FOR WOOD ID
Page 167: METHODS OF NON-DESTRUCTIVE WOOD TES
Page 173 and 174: MEASUREMENT AND SIMULATION OF DIMEN
Page 179 and 180: IN THE HEART OF THE LIMBA TREE (TER
Page 189 and 190: 3. Conclusions WOOD SCIENCE FOR CON
Page 191 and 192: 2. Materials and methods WOOD SCIEN
Page 197 and 198: 3. Chemometrics WOOD SCIENCE FOR CO
Page 201 and 202: 3. Results and discussion WOOD SCIE
Page 203 and 204: NIR SPECTROSCOPIC MONITORING OF WAT
Page 207 and 208: NUMERICAL SIMULATION OF THE STRENGT
Page 209 and 210: 3. Methods and models WOOD SCIENCE
Page 213 and 214: SIMPLE ELECTRONIC SPECKLE PATTERN I
Page 217 and 218: 5. Conclusions WOOD SCIENCE FOR CON
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Average r adiated presure field (dB
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EXPERIMENTAL AND NUMERICAL MECHANIC
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EFFECT OF THERMAL TREATMENT ON STRU
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The aims of this work are to: WOOD
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ultramarine [bad] titanium white [m
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4. Conclusions chrome yellow WOOD S
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Fig. 7 - A soaked lamella clamped i
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(D) CONSERVATION
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EUROPEAN TECHNICAL COMMITTEE 346 -
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THE WRECK OF VROUW MARIA - CURRENT
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ROMANIAN ARCHITECTURAL WOODEN CULTU
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RESSURREIÇÃO DE CRISTO - PANEL FR
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ON 18 TH- AND 19 TH- CENTURY SACRIS
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ON 18TH- AND 19TH- CENTURY SACRISTY
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DEFIBRING OF HISTORICAL ROOF BEAM C
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EXAMINATION AND CONSERVATION OF TWO
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EXAMINATION AND CONSERVATION OF TWO
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THE CONSEQUENCES OF WOODEN STRUCTUR
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CONSEQUENCES OF WOODEN STRUCTURES C
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WHAT ONE NEEDS TO KNOW FOR THE ASSE
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load (KN) Samples 6 5 4 3 2 1 WOOD
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STRUCTURAL BEHAVIOUR OF TRADITIONAL
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INVESTIGATION ON THE UTILIZATION OF
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3. Results and discussions WOOD SCI
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Abadlia ......................... 3
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ANNEX 1: FACTS ABOUT COST ACTION IE
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Keynote presentations WOOD SCIENCE
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Finito di stampare presso Grafiche
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