Question: What engineer was raised in Detroit and has a patented industrial construction technique for reinforcement of buildings?

full_context: Document 1: Hermann Kant: Hermann Kant was born on June 14, 1926, in Hamburg, Germany the son of a factory worker and a gardener born into poverty. His younger brother, Uwe Kant, became a well-known children's author. Because of the impending bombing of Hamburg during the Second World War, the family moved to Parchim in 1940, where his paternal grandfather lived as a master potter. After passing elementary school he began an electrician apprenticeship in Parchim, which he completed in 1944. On December 8, 1944, he was drafted into the German Military. He became a Polish POW, was held in Warsaw's Mokotów Prison and later was transferred to a labor camp, which was located on the site of the former Warsaw Ghetto. He was the co-founder of the antifascist committee and teacher at the Antifa Central School. During this time he met the writer Anna Seghers, who would have a lasting impression on him. After being released as a prisoner of war in 1949, he moved to East Germany and joined the Socialist Unity Party of Germany.
Document 2: Albert Stern (violinist): Violinist Albert Ivan Stern was born in New York City. His parents, father Murray Abraham Shmulevitch and mother Grace Sara Stern (née Gold), were both Jewish and born in Poland. Grace Gold immigrated to the US as a child and Murray immigrated later after graduating from Humboldt University of Berlin as a Doctor of medicine. After arriving in the US, Murray entered a lifelong career in business sales and, following in the footsteps of his father, became a prominent builder. Both his mother and father came from families of predominantly musicians. He had an older brother Stanley Stern (later known as Jack Stern) and an older sister Florence London. Stern has 4 children, daughters Adina T. Stern, a prominent attorney, Aura L. Stern, a financier, daughter Shereen A. Stern, a nurse, and son Shawn Stern, a novelist. He is married to Patricia A Stern (Née Trzaska).
Document 3: Trussed Concrete Steel Company: The Trussed Concrete Steel Company was a company founded by Julius Kahn, an engineer and inventor. The company manufactured prefabricated products for reinforced concrete beams and steel forms for building reinforced concrete floors and walls. Kahn invented and patented a unique new technology reinforcement system of construction called the Kahn System that was stronger, more economical, and lighter than the existing old school technology used up to that point to construct buildings. The old method was to use plain straight smooth steel beams or loose rods or stirrups in concrete beams and floors. Kahn's new technology improved system used 45 degree tab flanges or "wings" permanently attached on steel beams that distributed the tension stress for overall improvement in strength of reinforced concrete.
Document 4: Joseph Kushner: Joseph Kushner (October 10, 1922 – October 5, 1985) was an American real estate magnate, and the father of Murray Kushner and Charles Kushner, and grandfather of Jared Kushner, Joshua Kushner, and Marc Kushner. He came to the US as a Holocaust survivor from Belarus in 1949. At the end of his career, he handed out to his successor control of 4,000+ apartments, houses, and properties.
Document 5: Julius Kahn (inventor): Kahn was born in Münstereifel, Germany, March 8, 1874. He was raised in Detroit, Michigan. Kahn came to Detroit in 1881 from Germany with his family (five brothers and two sisters) when he was six years old, settling first in Baltimore, Maryland in 1880. His father Joseph (1860–1924) was a rabbi and ran a restaurant. Kahn helped in his father's restaurant business and sold newspapers. His mother Rosalie was skilled in music and art. Kahn went to the Detroit Public Schools where he received his elementary schooling, doing the normal four-year high school in three years.
Document 6: Crankshaft deep rolling: Deep rolling is a method of cold work deformation and burnishing of internal combustion engine crankshaft journal fillets to increase durability and design safety factors. Compressive residual stresses can be measured below the surface of a deep-rolled fillet. Other types of fillets on shafts or tubes can also benefit from this method. Cast iron crankshafts will experience the most improvement potentially doubling their fatigue life. Typically the crankshaft is machined with under-cut fillets as opposed to tangential radiused for ease of manufacture, although all types can be deep-rolled. Most automakers are currently utilizing this crankshaft technology including: General Motors LLC, Ford Motor Company, and Fiat Chrysler Automobiles (FCA) The North American based Hegenscheidt-MFD Corporation in Sterling Heights, MI, was established in 1966. Ingersoll CM Systems of Midland, Michigan with Global HQ located in Dalian, China and European based SPMS in Evry, France (established 1974), are the only major machine/tooling manufacturers of this application in Europe and North America, supplying a highly specialised product throughout the global manufacturing sectors.
Document 7: Otto Frank: Otto Frank was born into a Jewish family. He was the second son of Alice Betty (née Stern) and Michael Frank. His elder brother was Robert Frank, and younger siblings were Herbert Frank and Helene (Leni) Frank. Otto was a cousin of the well-known furniture designer
Document 8: Anchorage in reinforced concrete: Reinforced concrete [RC] is concrete in which reinforcement bars ("rebars"), reinforcement grids, plates or fibers are embedded to create bond and thus to strengthen the concrete in tension. The composite material was invented by French gardener Joseph Monier in 1849 and patented in 1867. Conventionally the term Concrete refers only to concrete that is reinforced with iron or steel. However, other materials are often used to reinforce concrete e.g. organic and inorganic fibres, composites in different forms. While compared to its compressive strength, concrete is weak in tension. Thus adding reinforcement increases the strength in tension. The other purpose of providing reinforcement in concrete is to hold the tension cracked sections together.
Document 9: Kahn System: The Kahn System is an industrial construction technique for reinforcement of buildings that was engineered and patented by Julius Kahn. The Kahn system is an industrial construction design using the Kahn Trussed Bar as the bases. This steel bar was a new type of reinforcing bar used in concrete and had unique engineered features to distribute stress.
Document 10: Trachtenberg system: The Trachtenberg system is a system of rapid mental calculation. The system consists of a number of readily memorized operations that allow one to perform arithmetic computations very quickly. It was developed by the Russian Jewish engineer Jakow Trachtenberg in order to keep his mind occupied while being held in a Nazi concentration camp.
Document 11: Stressed member engine: A stressed member engine is a vehicle engine used as an active structural element of the chassis to transmit forces and torques, rather than being passively contained by the chassis with anti-vibration mounts. Automotive engineers use the method for weight reduction and mass centralization in vehicles. Applications are found in several vehicles where mass reduction is critical for performance reasons, usually after several iterations of conventional frame/chassis designs have been employed.
Document 12: Ernst Kaps: The piano brand Kaps or Ernst Kaps Pianofortefabrik was founded and produced in Dresden Germany in 1858 by Ernst Karl Wilhelm Kaps. Ernst Kaps was born in Döbeln on December 6, 1826 and died in 1887 in Dresden (Saxony). Kaps was appointed in 1879 an honorary member of the Royal Swedish Academy of Music His son Ernst Eugen born in 1864 died in early 1910 in Dresden under suspicious circumstances. A report suggested he may have taken his own life as a result of his company facing receivership. His second Son Wilhelm Karl born in 1872 and died in 1943 in Tolkewitz. However, the year book of wealth and income of the millionaires in the kingdom of Saxony of 1912 states that 2 of the family members, Wilhelm and Gertrud Kaps, each had 1.3M marks and an annual income of .11 M Marks. In 1876, the company exhibited at the Centennial International Exhibition in Philadelphia. In 1922, the company then known as Ernst Kaps Piano Fabrik AG merged with another company, owned and founded by Johann Kuhse, whose piano manufacturing business was founded in Dresden in 1874. In 1925 the factory, then known as the Kaps/Kuhse Pianoforte AG, made both piano brands alongside each other. The Dresden factory closed in 1930 and at this point the company had reported its final serial number as No. 37500. The Dresden factory produced 37,500 pianos and grand pianos and ever since 1885 manufactured a consistent 1000 pianos per year. There were showrooms at 13 Altmarkt, Dresden and 18 Schloss Strasse, Dresden with branches in Paris, London, Irkutsk Oblast and St Petersburg Russia. Production resumed under ownership of an Australian company in 2012.
Document 13: Albert Kahn Associates: Albert Kahn Associates is an architectural design firm in Detroit, Michigan with a second office located in São Paulo, Brasil. It was established in 1895 and is still active today. It introduced a new technology in industrial building involving a unique reinforced concrete method referred to as the Kahn System of construction using proprietary patented reinforcement steel manufactured by Trussed Concrete Steel Company. The building of automobile factories and other types of factories were revolutionized from wooden timber framing construction. Besides being an advanced technology in strength that led to wider open interior spaces, it featured a high degree of fire resistance and larger window space for light. The firm started by Albert Kahn built factories for Chrysler for over a decade, Ford Automobile for 30 years and Packard Automobile for 35 years. Other important clients of the firm were Republic Steel and General Motors. The firm was awarded a $40 million dollar contract to build a tractor factory in Russia in 1928. The firm's output was over a million dollars worth of work per week by 1929. By 1939, the firm designed 19 percent of all industrial buildings in the United States and had designed some $800 million of buildings worldwide. Currently, Albert Kahn Associates is still making history with state-of-the-art projects. Recent projects include creating the world's largest penguin conservatory,located at the Detroit Zoo, which opened in 2016.
Document 14: Tilt up: Tilt-up, tilt-slab or tilt-wall is a type of building and a construction technique using concrete. Though it is a cost-effective technique with a shorter completion time, poor performance in earthquakes has mandated significant seismic retrofit requirements in older buildings.
Document 15: Ehrenkrantz Eckstut &amp; Kuhn Architects: Ehrenkrantz Eckstut & Kuhn Architects (EE&K) is an international architectural firm with offices in New York City, Washington DC, Los Angeles, and Shanghai. EE&K’s expertise spans large-scale urban development and infrastructure projects, mixed-use urban development and waterfronts, school and campus design, historic preservation and adaptive re-use.
ground_truth: Kahn