“消生”法巧算多平衡体系的化学平衡常数

2022年全国高考甲卷理综化学试题28题对化学平衡常数的计算有了更高的思维要求,在课堂实际教学中,学生对于化学平衡常数的计算由单一平衡体系转向两个或者两个反应平衡体系以上存在思维断层.通过“消生”法巧算多反应平衡体系的化学平衡常数,助力学生学科思维养成.

Class hierarchical test case generation algorithm based on expanded EMDPN model

A new model of event and message driven Petri network(EMDPN) based on the characteristic of class interaction for messages passing between two objects was extended. Using EMDPN interaction graph, a class hierarchical test-case generation algorithm with cooperated paths (copaths) was proposed, which can be used to solve the problems resulting from the class inheritance mechanism encountered in object-oriented software testing such as oracle, message transfer errors, and unreachable statement. Finally, the testing sufficiency was analyzed with the ordered sequence testing criterion(OSC). The results indicate that the test cases stemmed from newly proposed automatic algorithm of copaths generation satisfies synchronization message sequences testing criteria, therefore the proposed new algorithm of copaths generation has a good coverage rate.

Investigation of the environmental impacts of steel deck pavement based on life cycle assessment

To investigate the environmental impacts of steel deck pavement through the whole life cycle,the steel deck pavement was divided into five stages:raw materials production,asphalt mixture mixing,pavement construction,operation management,and pavement removing stage.Based on the process-based life cycle assessment(PLCA)method,the calculation methods of energy consumption and gas emissions of two typical steel deck pavement systems(EA+EA pavement and GA+SMA pavement)were determined.The data lists of two pavements were analyzed,and the calculation model was built.Four characteristic indices including primary energy demand(PED),global warming potential(GWP),acidification potential(AP)and respiratory inorganics(RI)were used to quantify the environmental impacts of two pavements.The results show that the environmental impact of the GA+SMA pavement is more than 1.3 times that of the EA+EA pavement.Moreover,the critical stage of energy-saving and emission-reduction of EA+EA pavement and GA+SMA pavement are the raw material production stage and asphalt mixture mixing stage,respectively.

Renewed Conceptions of Traditions in Hungarian Gastronomy via Example of Orange Wines

Nowadays in the range of gastronomic trends, there are important roles of local high quality basic materials, organic products, culinary delight of food-drink pair, and thee fifth basic taste so called umami. There are technical new methods and raw materials coming to Hungary but it is a very important task to fmd the suitable balance in using them to colour nation cuisine. The appearance of new trends and new guidelines is more and more characteristic of the world＇s wine-making today. A very importmat role is played by innovation, respecting the existence of traditions, the roots of grape producing, and wine-making cultures. Over the last two years, skin-contact fermented white wines, the so-called orange wines, have attracted international attention in wine sector and in gastronomy. Orange wines owning high alcohol content and spicy taste are being able to find good pairs for them in menu. By the way, they are not well-known and should be taught for chefs and consumers too. Hungarian consumers often have neofobia, they are afraid of eating or drinking new type of foods and that is why renewed conceptions of traditions have important role in the national cuisine