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Sylvatest
Sylvatest is an ultrasonic measuring device that provides an overall diagnosis of a wooden component to test its mechanical strength. This is a specific non-destructive testing tool for wooden beams. Description Sylvatest is an Acoustics, acousto-ultrasonic measuring device that provides an overall diagnosis of the wood element, based on the speed and energy absorption of the transmitted ultrasonic wave. The result given reflects the residual health of the wood in the trunk of the tree tested or the beam measured. These are Nondestructive testing, non-destructive tests. The technology was developed by Professor Jean-Luc Sandoz as part of his thesis at École Polytechnique Fédérale de Lausanne, EPFL in 1984. Characterization of wood by ultrasound Non-destructive ultrasonic testing of wood is a method used to assess its mechanical properties, particularly the modulus of elasticity in different directions. It is based on measuring the propagation velocity of sound waves thro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notre-Dame De Paris
Notre-Dame de Paris ( ; meaning "Cathedral of Our Lady of Paris"), often referred to simply as Notre-Dame, is a Medieval architecture, medieval Catholic cathedral on the Île de la Cité (an island in the River Seine), in the 4th arrondissement of Paris, France. It is the cathedral church of the Roman Catholic Archdiocese of Paris. The cathedral, dedicated to the Virgin Mary ("Our Lady"), is considered one of the finest examples of French Gothic architecture. Several attributes set it apart from the earlier Romanesque style, including its pioneering use of the rib vault and flying buttress, its enormous and colourful rose windows, and the naturalism (art), naturalism and abundance of its sculptural decoration. Notre-Dame is also exceptional for its three Pipe organ, pipe organs (one historic) and Bells of Notre-Dame de Paris, its immense church bells. The construction of the cathedral began in 1163 under Bishop Maurice de Sully and was largely completed by 1260, though it was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Luc Sandoz
Jean-Luc Sandoz (born 1960 in Montandon) is a French-Swiss engineer and an expert in wood construction. He is the founder of several companies in the field of engineering, industrialization, construction and expertise, all related to wood. Formerly, he was a professor and lecturer at EPFL (École Polytechnique Fédérale de Lausanne). Career Born into a family of farmers in the Haut-Doubs region, he became acquainted with the material wood, starting with a vocational training certificate in carpentry, followed by a BEP (vocational training certificate) in cabinetmaking, before joining the Lycée Bois de Mouchard in 1976, where he obtained a BTS (vocational training certificate) in wood construction. After studies at ENSTIB (École Nationale Supérieure des Technologies et des Industries du Bois), in 1985, he began his thesis on the subject of ultrasound and the mechanical strength of wood, under the direction of Julius Natterer at EPFL. He obtained his PhD in 1990 for his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
École Polytechnique Fédérale De Lausanne
The École Polytechnique Fédérale de Lausanne (, EPFL) is a public university, public research university in Lausanne, Switzerland, founded in 1969 with the mission to "train talented engineers in Switzerland". Like its sister institution ETH Zurich, EPFL is part of the ETH Domain, Swiss Federal Institutes of Technology Domain which groups several universities and research institutes under the Federal Department of Economic Affairs, Education and Research. As of 2024, EPFL enrolled 14,012 students from over 130 countries. EPFL has an Lausanne campus, urban campus that extends alongside Lake Geneva, and includes the Swiss Innovation Park, EPFL Innovation Park as well as university research centers and affiliated laboratories. History The roots of modern-day EPFL can be traced back to the foundation of a private school under the name ''École spéciale de Lausanne'' in 1853 at the initiative of Louis Rivier, a graduate of the and John Gay, the then professor and rector ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diagnostic Sylvatest
Diagnosis (: diagnoses) is the identification of the nature and cause of a certain phenomenon. Diagnosis is used in a lot of different disciplines, with variations in the use of logic, analytics, and experience, to determine "cause and effect". In systems engineering and computer science, it is typically used to determine the causes of symptoms, mitigations, and solutions. Computer science and networking * Bayesian network * Complex event processing * Diagnosis (artificial intelligence) * Event correlation * Fault management * Fault tree analysis * Grey problem * RPR problem diagnosis * Remote diagnostics * Root cause analysis * Troubleshooting * Unified Diagnostic Services Mathematics and logic * Bayesian probability * Block Hackam's dictum * Occam's razor * Regression diagnostics * Sutton's law Medicine * Medical diagnosis * Molecular diagnostics Methods * CDR computerized assessment system * Computer-aided diagnosis * Differential diagnosis * Retrospective diagnosis Tool ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Materials Science
Materials science is an interdisciplinary field of researching and discovering materials. Materials engineering is an engineering field of finding uses for materials in other fields and industries. The intellectual origins of materials science stem from the Age of Enlightenment, when researchers began to use analytical thinking from chemistry, physics, and engineering to understand ancient, phenomenological observations in metallurgy and mineralogy. Materials science still incorporates elements of physics, chemistry, and engineering. As such, the field was long considered by academic institutions as a sub-field of these related fields. Beginning in the 1940s, materials science began to be more widely recognized as a specific and distinct field of science and engineering, and major technical universities around the world created dedicated schools for its study. Materials scientists emphasize understanding how the history of a material (''processing'') influences its struc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Product Certification
Product certification or product qualification is the process of certifying that a certain product has passed performance tests and quality assurance tests, and meets qualification criteria stipulated in contracts, regulations, or specifications (sometimes called "certification schemes" in the product certification industry). Most product certification bodies (or product certifiers) are accredited to or aligned with ISO/IEC 17065 Conformity assessment—Requirements for bodies certifying products, processes and services (previously ISO/IEC Guide 65:1996)ISO/IEC Guide 65:1996 an international standard for ensuring competence in those organizations performing product, process and service certifications. The organizations that perform this accreditation are called Accreditation Bodies, and they themselves are assessed by international peers against the ISO 17011 standard. Examples of some certification schemes include the Safety Equipment Institute (SEI) for PPE, the U.S. Fed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Product Testing
File:Consumer Reports - product testing - electric light longevity and brightness testing.tif, Testing electric light longevity and brightness testing File:Consumer Reports - product testing - television testing laboratory.tif, Television testing laboratory File:Consumer Reports - product testing - headphones in anechoic chamber.tif, Product testing headphones in an anechoic chamber Product testing, also called consumer testing or comparative testing, is a process of measuring the properties or performance of products. The theory is that since the advent of mass production, manufacturers produce branded products which they assert and advertise to be identical within some technical standard. Product testing seeks to ensure that consumers can understand what products will do for them and which products are the best value. Product testing is a strategy to increase consumer protection by checking the claims made during marketing strategy, marketing strategies such as advertising, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quality Control
Quality control (QC) is a process by which entities review the quality of all factors involved in production. ISO 9000 defines quality control as "a part of quality management focused on fulfilling quality requirements". This approach places emphasis on three aspects (enshrined in standards such as ISO 9001): # Elements such as controls, job management, defined and well managed processes, performance and integrity criteria, and identification of records # Competence, such as knowledge, skills, experience, and qualifications # Soft elements, such as personnel, integrity, confidence, organizational culture, motivation, team spirit, and quality relationships. Inspection is a major component of quality control, where physical product is examined visually (or the end results of a service are analyzed). Product inspectors will be provided with lists and descriptions of unacceptable product defects such as cracks or surface blemishes for example. History and introductio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maintenance
The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure and supporting utilities in industrial, business, and residential installations. Terms such as "predictive" or "planned" maintenance describe various cost-effective practices aimed at keeping equipment operational; these activities occur either before or after a potential failure. Definitions Maintenance functions can be defined as maintenance, repair and overhaul (MRO), and MRO is also used for maintenance, repair and operations. Over time, the terminology of maintenance and MRO has begun to become standardized. The United States Department of Defense uses the following definitions: Federal Standard 1037C and from MIL-STD-188 and from the Department of Defense Dictionary of Military and Associated Terms * Any activity—such as tests, measurements, replacements, adjustments, and repairs—intended to retain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Château De Valère
A château (, ; plural: châteaux) is a manor house, or palace, or residence of the lord of the manor, or a fine country house of nobility or gentry, with or without fortifications, originally, and still most frequently, in French-speaking regions. Nowadays, a ''château'' may be any stately residence built in a French style; the term is additionally often used for a winegrower's estate, especially in the Bordeaux region of France. Definition The word château is a French word that has entered the English language, where its meaning is more specific than it is in French. The French word ''château'' denotes buildings as diverse as a medieval fortress, a Renaissance palace and a fine 19th-century country house. Care should therefore be taken when translating the French word ''château'' into English, noting the nature of the building in question. Most French châteaux are "palaces" or fine "country houses" rather than "castles", and for these, the word "château" is appropria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forbidden City
The Forbidden City () is the Chinese Empire, imperial Chinese palace, palace complex in the center of the Imperial City, Beijing, Imperial City in Beijing, China. It was the residence of 24 Ming dynasty, Ming and Qing dynasty, Qing dynasty List of Chinese monarchs, Emperors, and the center of political power in China for over 500 years from 1420 to 1924. The palace is now administered by the Palace Museum. As a World Heritage Site, UNESCO World Heritage Site, it is one of the most popular tourist attractions in the world. The Forbidden City is arguably the most famous Chinese palace, palace in all of History of China, Chinese history, and is the largest preserved Palace, royal palace complex still standing in the world. The Forbidden City was constructed from 1406 to 1420, and was the imperial palace and winter residence of the Emperor of China from the Ming dynasty (since the Yongle Emperor) to the end of the Qing dynasty, between 1420 and 1924. The Forbidden City served as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustics
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an Acoustical engineering, acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing (sense), Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or for marking territories. Art, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
