In order to make unexploded ordnance lose explosive ability,the chemical failure of HMX that is usually used as detonating explosive and booster was studied so as to find the corresponding chemical reagents,which can ...In order to make unexploded ordnance lose explosive ability,the chemical failure of HMX that is usually used as detonating explosive and booster was studied so as to find the corresponding chemical reagents,which can decompose HMX into compounds without explosive properties.For this purpose,several decomposition experiments between HMX and NaOH,HMX and thick H2 SO,HMX and mixed acid under different temperature conditions were carried out.According to the experimental results,it can be concluded that HMX can be decomposed by a mixture of concentrated nitric acid and concentrated nitric acid with the volume ratio of 3∶1.When its decomposed level reaches 60%,HMX will not be detonated,therefore the failure purpose is achieved.展开更多
As an important academic issue, the contemporary construction of the Chinese system of academic discourse has attracted increasing attention in recent years. Questions needing further reflection and exploration are： ...As an important academic issue, the contemporary construction of the Chinese system of academic discourse has attracted increasing attention in recent years. Questions needing further reflection and exploration are： What does the genesis and expansion of this topic actually mean？ Within what horizon can we reveal its fundamental nature and draw further conclusions？ What intellectual task will be presented to us in the course of fixing its direction？ An in-depth probe into these questions, that is, the core issue in the contemporary construction of the Chinese system of academic discourse, is how contemporary academic discourse can enter deep into the specific content ushered in by our historical practice, so that this content can be truly grasped intellectually and studied academically.展开更多
Historically,Chinese characters were used throughout the East Asian region,giving rise to a common cultural sphere.Since early modern times,the written languages of East Asia have developed in a diversity of ways,shap...Historically,Chinese characters were used throughout the East Asian region,giving rise to a common cultural sphere.Since early modern times,the written languages of East Asia have developed in a diversity of ways,shaped by nation,geography and culture,among other factors.Strengthening research on the long-term history of East Asian cultural development is thus very necessary.Komine Kazuaki has long been engaged in the study of medieval Japanese literature.Over the past two decades,he has projected a holistic academic approach to the study of culture in East Asia,conducting comparative research on the classical East Asian cultures.This paper takes a methodological approach to the discussion of the subjects,methods,techniques and goals of such research.In the study of East Asian cultural exchange,comparison enables us to undertake holistic investigations;it is not simply a tactic for unilateral studies.The study of texts and of images can be mutually enhancing;for example,the Japanese emaki is a medium that mixes literature and painting.Methods of researching environmental literature provide new insights for re-interpreting classical and modern literary works.Lastly,we need to examine the value of classical East Asian literature from the standpoint of East Asia as a whole;this is an urgently needed direction in contemporary research in this field.展开更多
文摘In order to make unexploded ordnance lose explosive ability,the chemical failure of HMX that is usually used as detonating explosive and booster was studied so as to find the corresponding chemical reagents,which can decompose HMX into compounds without explosive properties.For this purpose,several decomposition experiments between HMX and NaOH,HMX and thick H2 SO,HMX and mixed acid under different temperature conditions were carried out.According to the experimental results,it can be concluded that HMX can be decomposed by a mixture of concentrated nitric acid and concentrated nitric acid with the volume ratio of 3∶1.When its decomposed level reaches 60%,HMX will not be detonated,therefore the failure purpose is achieved.
文摘As an important academic issue, the contemporary construction of the Chinese system of academic discourse has attracted increasing attention in recent years. Questions needing further reflection and exploration are： What does the genesis and expansion of this topic actually mean？ Within what horizon can we reveal its fundamental nature and draw further conclusions？ What intellectual task will be presented to us in the course of fixing its direction？ An in-depth probe into these questions, that is, the core issue in the contemporary construction of the Chinese system of academic discourse, is how contemporary academic discourse can enter deep into the specific content ushered in by our historical practice, so that this content can be truly grasped intellectually and studied academically.
文摘Historically,Chinese characters were used throughout the East Asian region,giving rise to a common cultural sphere.Since early modern times,the written languages of East Asia have developed in a diversity of ways,shaped by nation,geography and culture,among other factors.Strengthening research on the long-term history of East Asian cultural development is thus very necessary.Komine Kazuaki has long been engaged in the study of medieval Japanese literature.Over the past two decades,he has projected a holistic academic approach to the study of culture in East Asia,conducting comparative research on the classical East Asian cultures.This paper takes a methodological approach to the discussion of the subjects,methods,techniques and goals of such research.In the study of East Asian cultural exchange,comparison enables us to undertake holistic investigations;it is not simply a tactic for unilateral studies.The study of texts and of images can be mutually enhancing;for example,the Japanese emaki is a medium that mixes literature and painting.Methods of researching environmental literature provide new insights for re-interpreting classical and modern literary works.Lastly,we need to examine the value of classical East Asian literature from the standpoint of East Asia as a whole;this is an urgently needed direction in contemporary research in this field.
