Quan Ching

Quan L Ching, age 89, Honolulu, HI View Details

Cities: Honolulu HI Possible Relatives: Brent Y Ching, Dwayne Y Ching, Harold Hc Ching

Quan Ching, age 75, Honolulu, HI View Details

Cities: Honolulu HI

Quan Ching, age 78, Honolulu, HI View Details

Cities: Honolulu HI

Quan Ching, age 66, Honolulu, HI View Details

Cities: Honolulu HI

Eric Quan Ching, age 29, Riverside, AL View Details

Cities: Honolulu HI Possible Relatives: Brent Y Ching, Dwayne Y Ching, Harold Hc Ching

Victoria Quan Ching, age 74, Orlando, FL View Details

Cities: Honolulu HI Possible Relatives: Brent Y Ching, Dwayne Y Ching, Harold Hc Ching

Quan M Ching, age 79, Flushing, NY View Details

Locations: Honolulu HI

Quan Ching, age 78, Honolulu, HI View Details

Locations: Honolulu HI

Quan Ching, age 75, Honolulu, HI View Details

Locations: Honolulu HI

Victoria Quan Ching, age 74, Orlando, FL View Details

Locations: Honolulu HI Possible Relatives: Brent Y Ching, Dwayne Y Ching

Quan Ching, age 66, Honolulu, HI View Details

Locations: Honolulu HI

Eric Quan Ching, age 29, Riverside, AL View Details

Locations: Honolulu HI Possible Relatives: Brent Y Ching, Dwayne Y Ching

Quan

Quán is the Pinyin romanization of the Chinese family names 權/权 and 全. All written forms of the name are rare enough that they do not appear in the list of the 100 most common Chinese surnames.

Quenching (scrubber)

Quenching, in the context of pollution scrubbers, refers to the cooling of hot exhaust gas by water sprays before it enters the scrubber proper. Hot gases are often cooled to near the saturation levelread more.... If not cooled, the hot gas stream can evaporate a large portion of the scrubbing liquor, adversely affecting collection efficiency and damaging scrubber internal parts. If the gases entering the scrubber are too hot, some liquid droplets may evaporate before they have a chance to contact pollutants in the exhaust stream, and others may evaporate after contact, causing captured particles to become reentrained. In some cases, quenching can actually save money. Cooling the gases reduces the temperature and, therefore, the volume of gases, permitting the use of less expensive construction materials and a smaller scrubber vessel and fan.read less...

Geiger–Müller tube

The Geiger–Müller tube or G–M tube is the sensing element of the Geiger counter instrument used for the detection of ionizing radiation. It was named after Hans Geiger, who invented the principleread more... in 1908, and Walther Müller, who collaborated with Geiger in developing the technique further in 1928 to produce a practical tube that could detect a number of different radiation types.read less...

Annealing (metallurgy)

In metallurgy and materials science, annealing is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making itread more... more workable. It involves heating a material above its recrystallization temperature, maintaining a suitable temperature for an appropriate amount of time and then cooling.read less...

Magnetochemistry

Magnetochemistry is concerned with the magnetic properties of chemical compounds. Magnetic properties arise from the spin and orbital angular momentum of the electrons contained in a compound. Compounread more...ds are diamagnetic when they contain no unpaired electrons. Molecular compounds that contain one or more unpaired electrons are paramagnetic. The magnitude of the paramagnetism is expressed as an effective magnetic moment, μeff. For first-row transition metals the magnitude of μeff is, to a first approximation, a simple function of the number of unpaired electrons, the spin-only formula. In general, spin-orbit coupling causes μeff to deviate from the spin-only formula. For the heavier transition metals, lanthanides and actinides, spin-orbit coupling cannot be ignored. Exchange interaction can occur in clusters and infinite lattices, resulting in ferromagnetism, antiferromagnetism or ferrimagnetism depending on the relative orientations of the individual spins.read less...

Spring City Square

The Quancheng Square is a square in central Jinan, the capital of China's Shandong Province which is known as the "Spring City". The square has length of 790 meter and width of 280 meter which occupieread more...s about 220,000 square meter. The construction started at July 10, 1998 and finished at September 25, 1999. The square is consisted by Baotu Spring Square, Shandong Celebrities Memorial Hall, Spring City Square, Binhe Square, Sofitel Silver Plaza, Lotus Musical Fountain, Four-Season Garden, Culture Gallery, Technology Center, etc.read less...