scholarly journals Mixing Corrosion of CaCO3in Natural Waters

2011 ◽  
Vol 8 (3) ◽  
pp. 1124-1131 ◽  
Author(s):  
Qian Hui ◽  
Li Peiyue

The methods of aqueous speciation calculation, pH calculation and the solubility (precipitability) calculation of CaCO3were used to study the mixing corrosion of CaCO3in natural waters. Mixing processes were done between two unsaturated (with CaCO3) solutions, two oversaturated solutions and between an unsaturated solution and an oversaturated solution, respectively. Results show that the mixing corrosion can be divided into two different levels: mixing corrosion in strict sense and mixing corrosion in broad sense. When mixing corrosion occurs, the HCO3-concentration in one end member solution is usually higher than that in the other solution, and the Ca2+concentration in the former solution is also usually higher than that in the latter one.

2014 ◽  
Vol 881-883 ◽  
pp. 757-760
Author(s):  
Xiao Qing Ren ◽  
Li Zhen Ma ◽  
Xin Yi He

The objective of this study was to examine the effect of different levels of catfish bone paste to flour on the physicochemical, textural and crumb structure properties of steamed bread. Six different levels (0, 1, 3, 5, 7,10 %) of catfish bone paste to flour were used in the formulation of the steamed bread. The results showed that the weight loss and TTA of steamed bread decreased with an increase in the levels of the catfish bone paste. On the other hand, the pH increased with an increase in the levels of the catfish bone paste. The specific volume, hardness, chewiness and gas cell structure in the crumb of steamed bread with catfish bone paste at 5% supplementation level were better. Thus, a value of 5% catfish bone paste was considered a better level for incorporation into the steamed bread.


2020 ◽  
pp. 030573562097343
Author(s):  
Luciano da Costa Nazario ◽  
Leonardo Roman Ultramari ◽  
Benjamin Pacce

This article presents an analysis of the construction of beliefs/values related to musical creativity. From the perspective of critical discourse analysis, we seek to comprehend how individuals constitute broad and strict senses of creativity and how these senses can influence their perceptions of themselves as creative. Open questionnaires were administered to students in the process of scholarly training and non-scholarly musicians. The results indicate that the presence of both senses of creativity in participants’ discourse reflects a social order that qualitatively and quantitatively produces and reproduces those senses. The broad sense of creativity has a smaller incidence rate (about 31%) and tends to allow participants to form a positive self-concept. In contrast, the strict sense appears more frequently (about 69%) and may lead to a negative self-concept when subjects do not reach the assigned values.


De Jure ◽  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Daniel Haman ◽  
◽  
◽  

The difference between intent (dolus) and negligence (culpa) was rarely emphasized in codified medieval laws and regulations. When compared to the legal statements related to intent, negligence was mentioned even more rarely. However, there are some laws that distinguished between the two concepts in terms of some specific crimes, such as arson. This paper draws attention to three medieval Slavic legal documents – the Zakon Sudnyj LJudem (ZSLJ), the Vinodol Law and the Statute of Senj. They are compared with reference to regulations regarding arson, with the focus being on arson as a crime committed intentionally or out of negligence. The ZSLJ as the oldest known Slavic law in the world shows some similarities with other medieval Slavic legal codes, especially in the field of criminal law, since most of the ZSLJ’s articles are related to criminal law. On the other hand, the Vinodol Law is the oldest preserved Croatian law and it is among the oldest Slavic codes in the world. It was written in 1288 in the Croatian Glagolitic script and in the Croatian Chakavian dialect. The third document – the Statute of Senj – regulated legal matters in the Croatian littoral town of Senj. It was written in 1388 – exactly a century after the Vinodol Law was proclaimed. When comparing the Vinodol Law and the Statute of Senj with the Zakon Sudnyj LJudem, there are clear differences and similarities, particularly in the field of criminal law. Within the framework of criminal offenses, the act of arson is important for making a distinction between intent and negligence. While the ZSLJ regulates different levels of guilt, the Vinodol Law makes no difference between dolus and culpa. On the other hand, the Statute of Senj strictly refers to negligence as a punishable crime. Even though the ZSLJ is almost half a millennium older than the Statute of Senj and around 400 years older than the Vinodol Law, this paper proves that the ZSLJ defines the guilt and the punishment for arson much better than the other two laws.


2008 ◽  
Vol 19 (3) ◽  
pp. 273-291
Author(s):  
Milotka Molnar-Sivc

Although the question of relationship between basic concepts of traditional ontology and central concepts of fundamental ontology is not a topic which is systematically dealt with in Being and Time, it is obvious that some of the theses which are crucial not only for Heidegger's interpretation of philosophical tradition, but also for the whole project of fundamental ontology, concern this 'conceptual scheme'. In fact, the backbone of Heidegger's critical confrontation with dominant philosophical conceptions is the question of relationship between the concept of 'substance' and the concept of 'Being', i.e. the discussion of philosophical doctrines in which 'Being' is reduced to 'substance'. Besides this context, which concerns the ontological problematics in the strict sense, it is possible to show that the refutation of the basic categories of traditional ontology is an issue which has a decisive role in more concrete phases of the realization of the project of fundamental ontology. This is especially confirmed in Heidegger's discussion of the concept of 'Being-There'. The interpretation of Heidegger's treatment of the relationship between the concepts of 'Being-there', 'existence' and 'existentials' on the one hand, and the concepts of 'substance', 'essence' and 'categories' on the other, shows that one of Heidegger's basic theses is that a transformation of concepts of traditional ontology is necessary for an appropriate understanding of human being.


Author(s):  
Geoffrey Schwartz

Abstract Two acoustic studies were carried out with L1 Polish learners of English. One study examined L1 phonetic drift, comparing learners of L2 English who were undergoing intensive L2 phonetic training with quasi-monolingual Polish speakers. The other study looked at L2 acquisition, comparing learners at two different levels of proficiency. Unlike most previous studies of Polish-English bilinguals, VOT data of both voiced and voiceless consonants were analyzed. In both experiments, an asymmetry was observed by which voiced stops were more susceptible to cross-language phonetic influence (CLI) than voiceless stops. These results build on evidence of a similar asymmetry observed in a number of other L1–L2 pairings. Predictions of competing phonological models are evaluated with regard to equivalence classification and phonetic CLI. It is shown that both traditional approaches to the phonological representation of voice contrasts fail to predict the observed asymmetry. An alternative theory, which predicts the asymmetry, is discussed.


2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Daniel Perovich ◽  
Leonardo Rodrıguez Rodrıguez ◽  
Andres Vignaga

Component-based development can be addressed from two different fronts, or more precisely, from two different levels. One of them regards the technology used for system implementation, and the other is a previous and more abstract level, where the focus is set to the logical structure of the solution and where technological issues are not considered. Model Driven Architecture promotes such separation by distinguishing platform independent models from platform specific models. In alignment with this approach, this article proposes a mapping from the tiered and platform independent architecture for information systems resulting from the application of a widely known methodological approach, to the available constructs in the J2EE platform. This mapping allows the definition of transformations between platform independent models, resulting from the referred methodology where it is possible to abstractly reason about the solution, and platform specific models which are aligned with technological constructs and are directly implemented.


Quantum ◽  
2021 ◽  
Vol 5 ◽  
pp. 475
Author(s):  
Myrto Arapinis ◽  
Mahshid Delavar ◽  
Mina Doosti ◽  
Elham Kashefi

A Physical Unclonable Function (PUF) is a device with unique behaviour that is hard to clone hence providing a secure fingerprint. A variety of PUF structures and PUF-based applications have been explored theoretically as well as being implemented in practical settings. Recently, the inherent unclonability of quantum states has been exploited to derive the quantum analogue of PUF as well as new proposals for the implementation of PUF. We present the first comprehensive study of quantum Physical Unclonable Functions (qPUFs) with quantum cryptographic tools. We formally define qPUFs, encapsulating all requirements of classical PUFs as well as introducing a new testability feature inherent to the quantum setting only. We use a quantum game-based framework to define different levels of security for qPUFs: quantum exponential unforgeability, quantum existential unforgeability and quantum selective unforgeability. We introduce a new quantum attack technique based on the universal quantum emulator algorithm of Marvin and Lloyd to prove no qPUF can provide quantum existential unforgeability. On the other hand, we prove that a large family of qPUFs (called unitary PUFs) can provide quantum selective unforgeability which is the desired level of security for most PUF-based applications.


1973 ◽  
Vol 184 (1075) ◽  
pp. 199-205 ◽  

The cell bodies of the position sensitive units form a row distal to the movement sensitive cells and their dendrites run in pairs in a narrow neck of tissue on the ventral side of the receptor strand. The scolopidia share the features of elongation and relaxation sensitive movement units. Thus the canal cell is absent, but there is some scolopale material in the enveloping cells. Also the scolopale is apposed by a mixture of strand cells and collagen. The more distal scolopidia are found in a region of large haemocoelic lacunae. The physiological differences between movement and position sensitive units could be explained in terms of how well the dendrites are anchored into the tube; with the position cells possibly being held at different levels with respect to their maximum sensitivity. On the other hand, the dendrites of both types of unit may behave identically and, if so, then the necessary physiological differences could occur in the transduction and/or impulse initiation sites. These alternative explanations are discussed.


1984 ◽  
Vol 24 (242) ◽  
pp. 263-273
Author(s):  
Géza Herczegh

In a rich and abundant literature on the subject of international humanitarian law, two trends in the interpretation of the term “humanitarian law” stand out: one takes it in its broad meaning, the other in a narrow sense. According to the definition by Jean S. Pictet, humanitarian law, in the broad interpretation, is constituted by all the international legal provisions, whether written or customary, ensuring respect for the individual and the development of his life. Humanitarian law includes two branches: the law of war and human rights. The law of war, still following Professor Pictet's definition, can be subdivided into two sections, that of The Hague, or the law of war, in the strict sense, and that of Geneva, or humanitarian law, in the narrow sense. It is often difficult to distinguish clearly between these branches of law, and especially between the law of The Hague and the law of Geneva, because of the reciprocal influence each has had on the development of the other, to the extent that some well-known experts considered the traditional difference between them out-of-date and superfluous.


1997 ◽  
Vol 46 (3) ◽  
pp. 635-643 ◽  
Author(s):  
Ibrahim F. I. Shihata

This note addresses the possible correlation between “democracy” and “development”, and the implications, if any, of such a correlation for the World Bank. This calls, first, for providing a definition of the two concepts as they are used here. To clarify the matter further, a distinction is made from the beginning between “development” in the broad sense and the concept of “economic growth” in the strict sense.


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