Jinpa, the sixth feature film by Tibetan director Pema Tseden, hit the screen on April 26, two days after U.S. superhero film Avengers: Endgame premiered in China. It bagged a box office income of over 10 million yuan...Jinpa, the sixth feature film by Tibetan director Pema Tseden, hit the screen on April 26, two days after U.S. superhero film Avengers: Endgame premiered in China. It bagged a box office income of over 10 million yuan ($1.47 million) as of May 8 with an audience of 300,000.展开更多
One of the innovative ways to improve heat transfer properties of heat exchangers,is using nanofluids instead of traditional fluids.Due to presence of metal and oxides of metal particles in nanofluids structure,they h...One of the innovative ways to improve heat transfer properties of heat exchangers,is using nanofluids instead of traditional fluids.Due to presence of metal and oxides of metal particles in nanofluids structure,they have better potential in different environments and conditions than conventional fluids and having higher thermal conductivity causes improvements in heat transfer properties.In this research flow of two different nanofluids through a rectangular microchannel containing a different number of longitudinal vortex generators(Ivgs),has been investigated.Simulations conducted under laminar flow boundary condition and for varied Reynolds numbers of 100 to 250.Considered volumetric concentration in this paper is 1,1/6 and 2/3%Results showed,nanofluids and the LVGs notably improve the heat transtfer rates within the microchannel.havg improved with increasing the nanoparticles volume concentrations and Reynolds number,while the op posite trends recognized for pressure drop.havg improved for4 to 12 and 9 to 18%for TO2 and CuO nanofuids,respectively for different volume concentrations in simple microchannel.For lvg-enhanced microchannel the amount of improvements is about 9-14 and 5-10%for CuO and T0,respectively.Also using vortex generators alone improved havg for 15-25%for different number of Ivgs.展开更多
在摩西五经以及《约书亚记》中,多处可见关于“逃城”(Cities of Refuge)的记载。“逃城”制度为解决以色列人之间的人命纠纷提供了一种新的模式与途径,其主要规定是:在以色列国土中设立一批特定城市,犯下非故意杀人罪的凶手可逃往这些...在摩西五经以及《约书亚记》中,多处可见关于“逃城”(Cities of Refuge)的记载。“逃城”制度为解决以色列人之间的人命纠纷提供了一种新的模式与途径,其主要规定是:在以色列国土中设立一批特定城市,犯下非故意杀人罪的凶手可逃往这些城市,免遭受害者亲属的报复;行凶者需在逃城中被审判,满足一系列条件后方可免除罪责。逃城及其庇护机制与以色列杀人律法紧密相连,折射出以色列民族从游牧到定居,从氏族集团到城市共同体,以及从神权到世俗的变迁。展开更多
文摘Jinpa, the sixth feature film by Tibetan director Pema Tseden, hit the screen on April 26, two days after U.S. superhero film Avengers: Endgame premiered in China. It bagged a box office income of over 10 million yuan ($1.47 million) as of May 8 with an audience of 300,000.
文摘One of the innovative ways to improve heat transfer properties of heat exchangers,is using nanofluids instead of traditional fluids.Due to presence of metal and oxides of metal particles in nanofluids structure,they have better potential in different environments and conditions than conventional fluids and having higher thermal conductivity causes improvements in heat transfer properties.In this research flow of two different nanofluids through a rectangular microchannel containing a different number of longitudinal vortex generators(Ivgs),has been investigated.Simulations conducted under laminar flow boundary condition and for varied Reynolds numbers of 100 to 250.Considered volumetric concentration in this paper is 1,1/6 and 2/3%Results showed,nanofluids and the LVGs notably improve the heat transtfer rates within the microchannel.havg improved with increasing the nanoparticles volume concentrations and Reynolds number,while the op posite trends recognized for pressure drop.havg improved for4 to 12 and 9 to 18%for TO2 and CuO nanofuids,respectively for different volume concentrations in simple microchannel.For lvg-enhanced microchannel the amount of improvements is about 9-14 and 5-10%for CuO and T0,respectively.Also using vortex generators alone improved havg for 15-25%for different number of Ivgs.
文摘在摩西五经以及《约书亚记》中,多处可见关于“逃城”(Cities of Refuge)的记载。“逃城”制度为解决以色列人之间的人命纠纷提供了一种新的模式与途径,其主要规定是:在以色列国土中设立一批特定城市,犯下非故意杀人罪的凶手可逃往这些城市,免遭受害者亲属的报复;行凶者需在逃城中被审判,满足一系列条件后方可免除罪责。逃城及其庇护机制与以色列杀人律法紧密相连,折射出以色列民族从游牧到定居,从氏族集团到城市共同体,以及从神权到世俗的变迁。
