With the verification of the State Organization Establishment Committee and the approval of the State Council, the CAS is now an institutional organization under the direct supervision of the State Council. It is both...With the verification of the State Organization Establishment Committee and the approval of the State Council, the CAS is now an institutional organization under the direct supervision of the State Council. It is both the highest academic institution and the most comprehensive research center in natural sciences in China.展开更多
In order to utilize solid wastes, ceramic facing brick was made form East-lake sediment and some additives. The strength and freeze-thaw resistance of the samples were tested, and the crystal phases and microstructure...In order to utilize solid wastes, ceramic facing brick was made form East-lake sediment and some additives. The strength and freeze-thaw resistance of the samples were tested, and the crystal phases and microstructures were studied by XRD and SEM. The results indicate that the samples have a wide firing temperature range. The main crystal phases are CaA12SizOs, a-Al203, Fe203, which distribute uniformly in the samples. The sample have the best properties in the series ＇Ca-A1-Si＇, and water absorption （Wa）, porosity （Pa）, bulk density （D）, bending strength and compressive strength are 7.24%, 15.82%, 2.19 g.cm＂3, 45.57 MPa and 56.81 MPa respectively, when the addition amount of East-lake sediment is 80% and the firing temperature is 1 100 ~C. In the series ＇K-A1-Si＇, the sample with the best properties was obtained when addition amount of East-lake sediment was 70% and firing temperature was 1 060 ~C. The water absorption, porosity, bulk density, bending strength and compressive strength are 7.62%, 16.37%, 2.15 g ~ cm＂3, 39.26 MPa, and 50.81 MPa respectively. They all come up to the national standardization, and meet the needs of manufacturing production.展开更多
Clinical translational science:Clinical translational science(CTS)is a new discipline bridging laboratory discoveries and clinical applications.It is normally funded by research grants instead of investment major phar...Clinical translational science:Clinical translational science(CTS)is a new discipline bridging laboratory discoveries and clinical applications.It is normally funded by research grants instead of investment major pharmaceutical companies.It is patient-and populationor community-oriented.Repair of the human展开更多
Introduction In English teaching, the first task for teachers should be teaching students with clear information about the language they are learning. The presentation stage is the best way to reach this goal. In this...Introduction In English teaching, the first task for teachers should be teaching students with clear information about the language they are learning. The presentation stage is the best way to reach this goal. In this essay, we analyze the importance of this stage. How it is different from the traditional methods -grammatical explanation and translations methods- and its advantages.展开更多
文摘With the verification of the State Organization Establishment Committee and the approval of the State Council, the CAS is now an institutional organization under the direct supervision of the State Council. It is both the highest academic institution and the most comprehensive research center in natural sciences in China.
文摘In order to utilize solid wastes, ceramic facing brick was made form East-lake sediment and some additives. The strength and freeze-thaw resistance of the samples were tested, and the crystal phases and microstructures were studied by XRD and SEM. The results indicate that the samples have a wide firing temperature range. The main crystal phases are CaA12SizOs, a-Al203, Fe203, which distribute uniformly in the samples. The sample have the best properties in the series ＇Ca-A1-Si＇, and water absorption （Wa）, porosity （Pa）, bulk density （D）, bending strength and compressive strength are 7.24%, 15.82%, 2.19 g.cm＂3, 45.57 MPa and 56.81 MPa respectively, when the addition amount of East-lake sediment is 80% and the firing temperature is 1 100 ~C. In the series ＇K-A1-Si＇, the sample with the best properties was obtained when addition amount of East-lake sediment was 70% and firing temperature was 1 060 ~C. The water absorption, porosity, bulk density, bending strength and compressive strength are 7.62%, 16.37%, 2.15 g ~ cm＂3, 39.26 MPa, and 50.81 MPa respectively. They all come up to the national standardization, and meet the needs of manufacturing production.
文摘Clinical translational science:Clinical translational science(CTS)is a new discipline bridging laboratory discoveries and clinical applications.It is normally funded by research grants instead of investment major pharmaceutical companies.It is patient-and populationor community-oriented.Repair of the human
文摘Introduction In English teaching, the first task for teachers should be teaching students with clear information about the language they are learning. The presentation stage is the best way to reach this goal. In this essay, we analyze the importance of this stage. How it is different from the traditional methods -grammatical explanation and translations methods- and its advantages.
