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Condition Assessment of the Timber Structures of a Century-Old Industrial Building Using a Nondestructive Inspection Procedure Xiping Wang1,a, Marko Teder2,b, and James Wacker1,c 1USDA Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI 53726, USA 2Dep. of Rural Building, Inst. of Forestry and Rural Engineering, Estonian University of Life Sciences, Kreutzwaldi 5, Tartu 51014, Estonia axwang@fs.fed.us, bmarko.teder@emu.ee, cjwacker@fs.fed.us Keywords: Inspection, microclimate, resistance micro-drilling, stress wave timing, timber structure Abstract.
Knowledge of the condition of a wood structure can reduce repair and replacement cost by minimizing labor and materials and extending service life.
The scope of the in situ physical inspection was limited to the areas that were under concern and specified by the facility engineers.
The key structural members that were inspected included: 1) First floor (Fig. 1a): the timber columns at row A, B, and C, the longitudinal beams of row A, B, and C (see Fig. 2), and the transverse beams at cross sections 1 – 9 (see Fig. 2); and 2) Second floor (Fig. 1b): the timber columns at row B, the bottom chords of the roof trusses (Truss No. 1 – No.5), and the connections of the roof trusses (bottom chord level).
A combination of visual, hammer sounding, stress wave timing, and resistance micro-drilling techniques were used to inspect the timber members in the concerned areas specified by the facility engineers.

In this work, we chose the material of parylene C which is compatible and flexible as the substrate of the sensor.
In addition, this material is thermoplastic enabling the processing of molding.
Collins, Miniature passive pressure transensor for implanting in the eye, IEEE Transaction on Bio-medical Engineering. 1967, 14(2): 74-83
Moya, et al, Non-invasive intraocular pressure monitoring with a contact lens engineered with a nanostructure polymeric sensing film.
Roy, Sensitivity analysis of an implantable LC based passive sensor, Biomedical Engineering and Informatics (BMEI), 3rd International Conference on IEEE2010. 2010, 1586–1590

Design and Manufacturing of Knee Implants for Osteoarthritis Patients Patrick Dometta, Mohammadreza Arjmandib, Maziar Ramezanic* Department of Mechanical Engineering, School of Engineering, Computer & Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand aPatrickDomett@outlook.com, bmohammadreza.arjmandi@aut.ac.nz, cmaziar.ramezani@aut.ac.nz Keywords: Artificial cartilage, Implant design, Knee unloading, Osteoarthritis.
Overall, the HC Type-B demonstrated the best mechanical and tribological performance among other studied materials and is therefore selected for further research.
American Society of Mechanical Engineers (2010)
Key Engineering Materials. 775 (2018) 109-114
Journal of the Mechanical Behaviour of Biomedical Materials. 95 (2019) 196-204.

Control parameters of EPB shield tunneling in weathered granite ground and below existing tunnels Xinggao Li1, a, Dajun Yuan1,b and Hao Hu2,c 1 School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China 2Shenzhen Metro Co.
The injected materials are usually foam agents, bentonite, and/or polymers, aiming at easily managing the operating pressure inside the plenum.
Thus the material has to be conditioned.
The second phase injection is key to control the further settlement of existing tunnels.
Vol. 3 (2006), P.70 [2] Standard specifications for tunneling-2006: shield tunnel, Japan society of civil engineering, August, 2007 [3] B.

Unmanned Aerial Vehicle (UAV) systems are becoming more appealing for many surveying applications in civil engineering, both as a data acquisition platform and as a measurement instrument [3].
Materials and Methods Aerial Photogrammetry UAV DJI Phantom 4 was introduced in carrying works related to aerial photogrammetry at the coastal area.
Duong, "Investigation of Pantai Punggur Coastal Erosion by using UAV Photogrammetry.," International Journal of Nanoelectronics & Materials, 15, 2022 [13] P.
“Methods of Test for Soils for Civil Engineering Purposes.
"A review on the geotechnical and engineering characteristics of marine clay and the modern methods of improvements."

Webster2,b 1Biological Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, 126 Prachautid Road, Bangmod, Toongkru, Bangkok 10140, Thailand 2School of Engineering and Department of Orthopaedics, Brown University 184 Hope Street, Box D, Providence, RI 02912, USA aSirinrath@gmail.com, Sirinrath.Sir@kmutt.ac.th, bThomas_Webster@brown.edu Keywords: Carbon Nanotubes, Redox, Titanium, Non-Collagenous Proteins in Bone, Extracelluar Matrix, Osteoblasts, Orthopedic Implants.
A key component to our sensor are carbon nanotubes (CNTs).
Togethered with an externally controlled drug delivery systems [30] [31], we can provide a real time closed-loop system of sensing biological events and drug treatments for orthopedic implants; such events are a key step forward for personalized medicine to prolong the lifetime of implants.
Journal of Biomedical Materials Research Part A 2010;95A(4):1048-1054
Microelectronic Engineering 2009;86(4-6):806-808

Stress Corrosion Cracking (SCC) of Nickel-base Weld Metals in PWR Primary Water Ru Xiong1,2,a, Yingjie Qiao1,b and Guiliang Liu2,c 1 School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China. 2 National Key Laboratory of Reactor Fuel and Materials, Nuclear Power Institute of China, Chengdu, 610041, China.
These materials began to exhibit extensive PWSCC at increasing rates in the early 1970s.
Subsequently, PWSCC was observed in more experiments; these early tests were conducted with wrought materials.
Subsequently, the SCC of Alloy 600 welding materials (e.g.
Wrought materials have generally equiaxed shapes of grains.

The polarization resistance of the material is defined as the slope of the potential-current curve at the free corrosion potential [3].
Another key component of the ZigBee wireless is the ability to support mesh networks.
AI classification and expert resolution methods for dealing with multiple sensor data feeds from a single, primary, operational source might be engineered using several steps.
Future designs of the SHM should incorporate other types of sensors such that more types of material degradation processes can be modeled.
Beard, "Utilization of Structurally Integrated Sensor Networks for Health Monitoring in Commercial Applications", Proceedings of SPIE Smart Structures and Materials Conference, Vol, 4701, March 2002

The results show that the Kosteletzkya virginica bast fiber is an appropriate candidate for the new textiles materials which can grow in the brackish portions of coastal tidal marshes.
Experimental section Materials The Kosteletzkya virginica bast fibers (obtained from biotechnology institute of Nanjing University, China), castor-oil plant and cotton fibers (purchased from the market, China), were used for this study.
The other non-cellulose materials (such as pectin, fats and aqueous extract) were removed from the fibers by treating with sodium hydroxide at boil, and the conditions used in this study to obtain fibers were expected to remove most of the pectin.
This was due to removal of amorphous materials like hemicellulose, lignin and some other non-cellulose materials during the degumming process.
As the temperature was increased the mass remained constant until 252 ℃, the temperature which corresponds to the beginning of the thermal degradation (Td), which was due to the thermal depolymerization of non-cellulose materials [20].

Only the concave parabolic surface has optical precision; dimensions of all other parts have civil or mechanical engineering finishing.
Steam turbine + Generator + Peripheric turn key [USD 1000] 1900 4390 6.
Mahadevappa, Strength of Materials, third ed., CRC, New York, 2010
Mattos, Cylindrical parabolic solar collector analysis, optimization, and performance evaluation, Dissertation (Master degree on Mechanical Engineering), (2011), Guaratinguetá Engineering College, Guaratinguetá, 108 p
Levenspiel, Engineering Flow and Heat Exchange, Plenum, New York, 1984