Báo cáo nghiên cứu khoa học: " EFFECTS OF ULTRASOUND AND MICROWAVE IRRADIATION ON THE GREEN OXIDATION OF ALKYLARENES BY KMnO4/CuSO4 5H2O"ơ ppsx

... under microwave irradiation conditions. There were some exceptional cases: i) in the case of oxidation of 5, the reaction temperature provided by microwave or conventional heating increased the ... (7), and fluorene (8) at the benzylic position to form the corresponding aromatic ketones under solventless reaction conditions. Under the assisstance of ultrasou...

Ngày tải lên: 22/07/2014, 03:20

... assertion holds for weak supersolutions and solutions. Theorem 2.2. Assume u is a weak solution of (2.4) and RR → Ψ : is continuous. Then )(: uv Ψ= is also a weak solution of (2.4). The proofs ... on mean curvature. The velocity of the motion is composed by mean curvature and a forcing term. We will derive an equation for the evolution containing the surfaces...

Ngày tải lên: 22/07/2014, 03:20

... between the perceptions of the two groups of employees on the effects of leadership on leader reputation. 6. Discussion and conclusions This study examined the effects of leadership on the ... difference of the effects of Personal Morality on the overall leader reputation in two sectors was examined by constraining factor loading A. Secondl...

Ngày tải lên: 22/07/2014, 10:21

... retailers and consumers look at the skin colour, and use this as one of the determinates of fruit maturity and ripeness. Therefore, in this experiment we have tried to establish the effects of the ... rots of citrus are usually caused by Diplodia and Phomopsis and occur in regions with a high rainfall. Lesions of the fruit become dark, leathery and sunke...

Ngày tải lên: 22/06/2014, 12:20

... is the main feature of American culture. It plays an important role in the development of America. This essay discusses the origin, the existence and development of American pragmatism, and ... existence and development of American pragmatism, and its influence on the regions beyond its boundary. 1. Đặt vấn đề Trong các trào lưu triết học hiện đại ở Mỹ thì...

Ngày tải lên: 22/07/2014, 18:21

... bathymetry and to give the detail explainations to the peculiarities of tidal regime of the sea such as the domination of the diurnal tide in the sea, the acceleration of the tide range and the differentiation ... differentiation of tide feature in different places of the sea, the changes of the relationship of the major tide constituents along...

Ngày tải lên: 20/06/2014, 00:20

... sự phục hồi của kinh tế Trung Quốc. Trong báo cáo mới nhất, Ngân hàng Thế giới (WB) đã nâng mức dự báo về tốc độ tăng trưởng kinh tế Trung Quốc lên 7,2% trong năm 2009 và năm 2010 cao hơn 8% ... nước này. Tuy nhiên, theo dự báo kinh tế Mỹ vẫn phục hồi chậm (dự báo sẽ theo mô hình chữ U có đáy kéo dài). Như vậy, tình trạng thiếu vốn của các nước đang phát triển trong đó có Việt...

Ngày tải lên: 22/06/2014, 06:20

... singly on the tip of the Butterfly lay eggs singly on the tip of the young leaves. The eggs of species are young leaves. The eggs of species are yellow, spherical and 2 yellow, spherical and ... pupa and Three growth stages are followed by a pupa and then winged adult. The pupae are often found on then winged adult. The pupae are often found on...

Ngày tải lên: 22/06/2014, 12:20

... texture, pH, and EC of soils and to observe and record properties such as position in the landscape, drainage, permeability, colour, structure and compaction. The implications of these properties ... that over 90% of participants would apply the knowledge and concepts presented at the workshops to their local situation by organising training workshops and one - on...

Ngày tải lên: 22/06/2014, 12:20

... complex system containing many organic and inorganic compounds in different forms. Great attention is being paid to heavy metals because of their toxicities. Especially, among them is Arsenic ... (As) – an extremely toxic metal. The protocol for total Arsenic determination in water by means of the UV-VIS spectroscopy method has been set up. The results of quantative analysi...

Ngày tải lên: 29/06/2014, 16:59