A flexible and adaptable design method for the tooth crown is presented based on the direct manipulation of free-form deformation （FFD）. The correct shape of the tooth crown can be obtained by adding, modifying, and...A flexible and adaptable design method for the tooth crown is presented based on the direct manipulation of free-form deformation （FFD）. The correct shape of the tooth crown can be obtained by adding, modifying, and deleting constraint points or load points based on stretching and compressing operation. Finally, an example is given to illustrate the method to be efficient.展开更多
The alternative productions, increasingly importance, are based on the rational utilization of the resources, on agreement with the environment and the use of autochthonous breeds that many cases are found in danger o...The alternative productions, increasingly importance, are based on the rational utilization of the resources, on agreement with the environment and the use of autochthonous breeds that many cases are found in danger of disappearance, due to the tact that their suckling is not economically profitable. A way of predicting and knowing the growth of the animals is using mathematical models. This work presented the results of the estimate of the growth according to the Gompertz-Laird model of males of the atttochthonous breed Serrana Soriana and Charolais. The weight to the birth of the breed calfs Charolais （45.14 kg）, was superior to those of Serrana Soriana （40.13 kg）, and presented a greater relative growth （9.9%） before the inflection point of the growth curve： furthermore it ~as also superior to the maximum decline relative after this point （6%）, Serrana Soriana reached 7 days after the maximum growth point but with a smaller weight （315.05 kg vs 384.76 kg）. It was calculated a weight to the maturity of 1 ,（176.91） kg for Charolais and 856.40 kg for Serrana Soriana.展开更多
In April 2009, a new strain of influenza subtype H 1N 1 emerged due to the rearrangement of two RNA segments. The strain incorporated two segments of the genome of porcine origin and was officially designated as A/Cal...In April 2009, a new strain of influenza subtype H 1N 1 emerged due to the rearrangement of two RNA segments. The strain incorporated two segments of the genome of porcine origin and was officially designated as A/CaliforniaJ4/2009/H1N1. In June 2009, alarmed by the infection＇s progress, the World Health Organization （WHO） declared the ＂level six＂ of the geographical progression scale for epidemics and kept it at that level until August of the following year. The Portuguese media activated the public health alarm and integrated it into its agenda, but the volume and severity indicators of the news coverage did not correspond to the epidemiological indicators of progression. This paper describes how two narratives with different rhythms for the swine flu pandemic de facto emerged.展开更多
文摘A flexible and adaptable design method for the tooth crown is presented based on the direct manipulation of free-form deformation （FFD）. The correct shape of the tooth crown can be obtained by adding, modifying, and deleting constraint points or load points based on stretching and compressing operation. Finally, an example is given to illustrate the method to be efficient.
文摘The alternative productions, increasingly importance, are based on the rational utilization of the resources, on agreement with the environment and the use of autochthonous breeds that many cases are found in danger of disappearance, due to the tact that their suckling is not economically profitable. A way of predicting and knowing the growth of the animals is using mathematical models. This work presented the results of the estimate of the growth according to the Gompertz-Laird model of males of the atttochthonous breed Serrana Soriana and Charolais. The weight to the birth of the breed calfs Charolais （45.14 kg）, was superior to those of Serrana Soriana （40.13 kg）, and presented a greater relative growth （9.9%） before the inflection point of the growth curve： furthermore it ~as also superior to the maximum decline relative after this point （6%）, Serrana Soriana reached 7 days after the maximum growth point but with a smaller weight （315.05 kg vs 384.76 kg）. It was calculated a weight to the maturity of 1 ,（176.91） kg for Charolais and 856.40 kg for Serrana Soriana.
文摘In April 2009, a new strain of influenza subtype H 1N 1 emerged due to the rearrangement of two RNA segments. The strain incorporated two segments of the genome of porcine origin and was officially designated as A/CaliforniaJ4/2009/H1N1. In June 2009, alarmed by the infection＇s progress, the World Health Organization （WHO） declared the ＂level six＂ of the geographical progression scale for epidemics and kept it at that level until August of the following year. The Portuguese media activated the public health alarm and integrated it into its agenda, but the volume and severity indicators of the news coverage did not correspond to the epidemiological indicators of progression. This paper describes how two narratives with different rhythms for the swine flu pandemic de facto emerged.
