Based on large numbers of experiments, together with some theoretic support such as equations related to the experiment, thermodynamic principles and so on, one useful and reasonable self-protecting boron formulation ...Based on large numbers of experiments, together with some theoretic support such as equations related to the experiment, thermodynamic principles and so on, one useful and reasonable self-protecting boron formulation is got to reinforce the muzzle shunt rail gun rail. The preliminary friction and abrasion test results show that the formulation is acceptable and the abrasion resistance of the steel rail enhances to some extent after the surface reinforcement.展开更多
Insofar as the right to free speech is constitutionally protected, the article distinguishes between opinions and facts. Whereas the former is protected as a free speech matter, the latter has nothing to do with the r...Insofar as the right to free speech is constitutionally protected, the article distinguishes between opinions and facts. Whereas the former is protected as a free speech matter, the latter has nothing to do with the right to free expression Holocaust Denial concerns denying facts and therefore, it is not a question of freedom of speech. At the same vein, inquiring into the conceptual grounds of the theory of criminalization, the article provides that Holocaust Denial cannot and should not be criminalized.展开更多
Motor bikes (m-bike) and electric bikes (e-bike) are widely used in urban areas of China. Life cycle assessment of m-bike and e-bike are presented to compare their energy use and environmental emission in a life cycle...Motor bikes (m-bike) and electric bikes (e-bike) are widely used in urban areas of China. Life cycle assessment of m-bike and e-bike are presented to compare their energy use and environmental emission in a life cycle span. An m-bike and an e-bike are disassembled to collect material composition data for the life cycle assessment. The results show that e-bike consumes less energy and has less global warming potential (GWP), biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SS), dissolved solids (DS), hydrocarbons (HC) than m-bike during life cycle. But e-bike generates more solid wastes, and more acidification potential (AP), heavy metal (HM) than m-bike. Advanced batteries and clean coal fired power plant technologies are recommended to promote e-bike use in urban area.展开更多
Salim Ali＇s fruit bat （Latidens salimalii） is Endemic to Southern Western Ghats. India and is classified as Endangered by IUCN. Latidens is morphologically adapted to play a major role in the propagation of economi...Salim Ali＇s fruit bat （Latidens salimalii） is Endemic to Southern Western Ghats. India and is classified as Endangered by IUCN. Latidens is morphologically adapted to play a major role in the propagation of economically important trees： some of them are endemic to southern Western Ghats. This paper describes and documents, the bat＂s ecology, foraging behavior and food selection. The study is based on the dietary details of the discovered populations of L. salimalii in the Agasthiyar hill range and the High Wavy Mountains of southern Western Ghats, India. Seeds. partially eaten fruits and seedlings germinated on the floor of the feeding roosts confirm this bat forage for fruits among relatively tall trees of evergreen forests in an elevation above 900 meter. Mist netting below and above canopy near the fruiting and flowering trees of their foraging area confirmed their interaction with certain endemic tree species. Their species specific dietars＇ preferences immensely help to restore and bring back the natural forest community structures.展开更多
This article investigates the sources of vegetables consumed by farmers, their perception of pesticide-related food safety risks and the behaviors they engage in to protect themselves, and explores the implications fo...This article investigates the sources of vegetables consumed by farmers, their perception of pesticide-related food safety risks and the behaviors they engage in to protect themselves, and explores the implications for the social co-governance（shehui gongzhi） of food safety emphasized by China’s recent Food Safety Law. The research site is a county in Yunnan Province where vegetable growing is the major source of income and livelihood for local farmers. We surveyed 417 farmers and collected 776 vegetable samples from 377 surveyed farmer households and tested them for organophosphate and carbamate pesticide residues using PR-12 N Rapid Detection Instrument for Pesticide Residues. The results showed that farmers know about the risks to food safety caused by pesticides used in vegetable growing and they purposely avoid these risks by mainly consuming vegetables planted in home gardens or private plots that use little or no pesticides. Vegetable samples from these private plots had the lowest positive rate of pesticide residues（6.10%）, compared with vegetable samples from commercial farmland（13.73%） and markets（12.66%）, and the difference was statistically significant（X2=9.69,0.005〈P〈0.010）. This implies that the efforts of farmers to protect themselves from pesticide-related food safety risks do have some effect; however, the effect is limited due to the environmental pollution caused by the massive use of pesticides in commercial vegetable growing. Furthermore, this self-protective behavior may have a negative impact on the social co-governance of food safety set out in the new Food Safety Law.展开更多
文摘Based on large numbers of experiments, together with some theoretic support such as equations related to the experiment, thermodynamic principles and so on, one useful and reasonable self-protecting boron formulation is got to reinforce the muzzle shunt rail gun rail. The preliminary friction and abrasion test results show that the formulation is acceptable and the abrasion resistance of the steel rail enhances to some extent after the surface reinforcement.
文摘Insofar as the right to free speech is constitutionally protected, the article distinguishes between opinions and facts. Whereas the former is protected as a free speech matter, the latter has nothing to do with the right to free expression Holocaust Denial concerns denying facts and therefore, it is not a question of freedom of speech. At the same vein, inquiring into the conceptual grounds of the theory of criminalization, the article provides that Holocaust Denial cannot and should not be criminalized.
基金This work was supported by grant G - 0205 - 06347 from David and Lucile Packard Foundation in partnership with the US Energy Foundation, as well as grant ICA4 - 2002 - 10023 from European Union.
文摘Motor bikes (m-bike) and electric bikes (e-bike) are widely used in urban areas of China. Life cycle assessment of m-bike and e-bike are presented to compare their energy use and environmental emission in a life cycle span. An m-bike and an e-bike are disassembled to collect material composition data for the life cycle assessment. The results show that e-bike consumes less energy and has less global warming potential (GWP), biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SS), dissolved solids (DS), hydrocarbons (HC) than m-bike during life cycle. But e-bike generates more solid wastes, and more acidification potential (AP), heavy metal (HM) than m-bike. Advanced batteries and clean coal fired power plant technologies are recommended to promote e-bike use in urban area.
文摘Salim Ali＇s fruit bat （Latidens salimalii） is Endemic to Southern Western Ghats. India and is classified as Endangered by IUCN. Latidens is morphologically adapted to play a major role in the propagation of economically important trees： some of them are endemic to southern Western Ghats. This paper describes and documents, the bat＂s ecology, foraging behavior and food selection. The study is based on the dietary details of the discovered populations of L. salimalii in the Agasthiyar hill range and the High Wavy Mountains of southern Western Ghats, India. Seeds. partially eaten fruits and seedlings germinated on the floor of the feeding roosts confirm this bat forage for fruits among relatively tall trees of evergreen forests in an elevation above 900 meter. Mist netting below and above canopy near the fruiting and flowering trees of their foraging area confirmed their interaction with certain endemic tree species. Their species specific dietars＇ preferences immensely help to restore and bring back the natural forest community structures.
基金International Development Research Centre(IDRC,106556-004)FORHEAD with funding from the Rockefeller Brothers Fund(RBF)
文摘This article investigates the sources of vegetables consumed by farmers, their perception of pesticide-related food safety risks and the behaviors they engage in to protect themselves, and explores the implications for the social co-governance（shehui gongzhi） of food safety emphasized by China’s recent Food Safety Law. The research site is a county in Yunnan Province where vegetable growing is the major source of income and livelihood for local farmers. We surveyed 417 farmers and collected 776 vegetable samples from 377 surveyed farmer households and tested them for organophosphate and carbamate pesticide residues using PR-12 N Rapid Detection Instrument for Pesticide Residues. The results showed that farmers know about the risks to food safety caused by pesticides used in vegetable growing and they purposely avoid these risks by mainly consuming vegetables planted in home gardens or private plots that use little or no pesticides. Vegetable samples from these private plots had the lowest positive rate of pesticide residues（6.10%）, compared with vegetable samples from commercial farmland（13.73%） and markets（12.66%）, and the difference was statistically significant（X2=9.69,0.005〈P〈0.010）. This implies that the efforts of farmers to protect themselves from pesticide-related food safety risks do have some effect; however, the effect is limited due to the environmental pollution caused by the massive use of pesticides in commercial vegetable growing. Furthermore, this self-protective behavior may have a negative impact on the social co-governance of food safety set out in the new Food Safety Law.
