食品添加剂在我国食品加工中的应用现状

食品添加剂在现代食品工业生产中占据着非常重要的地位,与人们的日常饮食安全和身体健康息息相关。综述了我国食品添加剂的定义、作用、种类、相关法律法规和加工特点等,提出了食品添加剂在食品加工应用中存在的问题及相应解决措施,对进一步丰富我国食品添加剂理论研究,推动食品加工业高质量发展具有重要的社会和经济意义。

The Pragmatic Maxim and Four Classical Pragmatists

This essay explores the issue of what makes a pragmatist. It centers on the pragmatic maxim of Charles Sanders Peirce. Although Peirce deliberately coined the word ＂Pragmaticism＂ to express his disapproval of James＇s pragmatism, his pragmatic maxim has become the touchstone of a pragmatist, so much so that, to be a pragmatist, one must endorse the pragmatic maxim, notwithstanding the fact that the pragmatic maxim is open to various interpretations, as shown in the four classical pragmatists, Peirce, James, Dewey, and Mead. Their different interpretations of the pragmatic maxim are examined successively so as to offer a panoramic view of the pragmatic maxim and its significant role in constituting a pragmatist.

A novel 3-layer mixed cultural evolutionary optimization framework for optimal operation of syngas production in a Texaco coal-water slurry gasifier

Optimizing operational parameters for syngas production of Texaco coal-water slurry gasifier studied in this paper is a complicated nonlinear constrained problem concerning 3 BP(Error Back Propagation) neural networks. To solve this model, a new 3-layer cultural evolving algorithm framework which has a population space, a medium space and a belief space is firstly conceived. Standard differential evolution algorithm(DE), genetic algorithm(GA), and particle swarm optimization algorithm(PSO) are embedded in this framework to build 3-layer mixed cultural DE/GA/PSO(3LM-CDE, 3LM-CGA, and 3LM-CPSO) algorithms. The accuracy and efficiency of the proposed hybrid algorithms are firstly tested in 20 benchmark nonlinear constrained functions. Then, the operational optimization model for syngas production in a Texaco coal-water slurry gasifier of a real-world chemical plant is solved effectively. The simulation results are encouraging that the 3-layer cultural algorithm evolving framework suggests ways in which the performance of DE, GA, PSO and other population-based evolutionary algorithms(EAs) can be improved,and the optimal operational parameters based on 3LM-CDE algorithm of the syngas production in the Texaco coalwater slurry gasifier shows outstanding computing results than actual industry use and other algorithms.

It＇ s time that Mongolian cashmere industry focus on Quality Instead of Quantity

Cashmere is one of the world＇s rare special animal fiber and a kind of textile industry high-grade raw materials, which was praised as ／＂diamond fiber／＂or／＂soft gold／＂. China is the world＇s largest cashmere production producer, accounts for about 70% of the world＇s total output of the above; Mongolia cashmere production by about 20%, and the rest of cashmere production is in the rest of the country. Mongolia has cashmere yield about 3500-4000 tons per year on average. In terms of cashmere production and potential production capacity of Mongolia is after China ranked second, in this case the cashmere exports to the country＇s economic, the production and the welfare of the herdsmen have important significance. Mongolian cashmere producers have reason to be optimistic. In the past decade, recovered global demand offset weak domestic economic conditions and garment companies like Gobi established international beachheads. Cashmere production levels are breaking records. And government programs, international financial institutions, and domestic companies are promoting in-country value-add cashmere processing. However, the industry＇s rapid growth has degraded the average fiber quality and made the industry more susceptible to a catastrophic supply-chain shock.

Aristotle and Hollywood： Dramatic Structure From Ancient Greece to Avatar ＆ Beyond

It is fascinating to realize that even while Hollywood continually comes up with incredible special effects in films such as Avatar （2009）, the basic structure and development closely ＂follows＂ the guidelines for drama and storytelling laid out by Aristotle in his The Poetics, written several thousand years ago. We are specifically speaking of three act （beginning, middle, and ending） structure, focusing more on plot than character, and the need for a final resolution （catharsis）. But throughout literary and cinematic history, not everyone has followed these rules. Ironically, we take a close look at the award-winning Greek director Theo Angelopoulos＇ Ulysse＇s Gaze （1995） staring Harvey Keitel, as an example of a very non-Aristotelian approach to filmmaking and storytelling. Angelopoulos＇ film is character rather than plot centered on the Harvey Keitel figure and the journey of the narrative can be broken down to between 8-10 acts, depending how you describe them. We discuss many of the standard American ＂how to write screenplay book＂ authors such as Syd Field, while bringing a variety of authors such as Lajos Egri （The Art of Dramatic Writing） who criticize both Aristotle＇s Poetics and the way it has been interpreted for centuries especially in Hollywood. We conclude that there is a middle ground as well, for while Casablanca （1942） has a clear three act structure, it does not give us a happy romantic ＂Hollywood＂ ending/resolution as Rick insists that Lisa leave with her husband.

Teacher Spiritualism： The Vocation Within

Ancient civilizations adopted an early education system that included religion as an integral part of its focus. For this reason, priests, monks, and other people of faith, were trusted with the important task of educating their community and instructing them in the values, beliefs, and norms of their society. As time passed, public education continued to evolve to keep up with the societal demands to the point that education and religion were not longer connected. Simultaneously, professionals in the education field have also changed and educators are no longer required to be people of faith. However, considering that the mission of education has remained the same, it would be unrealistic to consider teachers as unspiritual individuals regardless of their religious beliefs and affiliations. This paper explores the idea that educators are innate spiritual individuals who strive to perpetuate the norms, values and virtues of their society. In addition, this article presents the concept of teacher spiritualism as a contemporary reality of our teachers and our educational system.

宋敬武副会长会见冰中文协新任主席阿纳森

11月13日,宋敬武副会长会见并宴请冰中文协新任主席阿纳森以及冰岛驻华大使古士贤。宋敬武副会长对阿森纳主席当选表示祝贺,并请其转达对前任主席,特别是老朋友赫尔加松的问候。阿纳森主席表示,他本人从事对华科技领域合作,10月当选冰中文协主席,履新后将为促进冰中友好与合作做出新的贡献。

δ^(18)O and δD records of inactive ice wedge in Yitulihe, Northeastern China and their paleoclimatic implications

Discovered in the late 1980s, inactive ice wedges in Yitulihe in the north part of Da Hinggan Mountains, Northeastern China are the southernmost in the Northern Hemisphere, and they are important paleo-environmental indicators. Recently, research was carried out to analyze the hydrogen and oxygen isotopes of an inactive ice wedge from them. The plot of stable isotopes reveals three periods of temperature fluctuations centered approximately at 2.8, 2.3 and 1.9 ka BP. And the resultant temperature was probably lowered by about 2.1, 1.1, and 1.3℃, respectively, in comparison with present temperatures. In conjunction with previous studies, pollen record and radiocarbon dating, the ice wedges probably developed between 3.3 to 1.6 ka BP, and the southern limit of the permafrost （SLP） at that time advanced southwards by around 2°N, i.e., about 200 km.