A Workshop to Help Students Integrate Sources into Their Writing

Inexperienced academic writers often have difficulty understanding and implementing academic intertextual practices, i.e. interpreting, extrapolating and integrating primary and secondary sources into their own texts. To address this need, we developed a workshop with learning stations. We identified five key difficulties students face and created seven exercises that address them. In the workshop, participants move from station to station, working on the exercises at their own pace by using pre-prepared materials at the stations. In this paper, we describe how we devised the workshop based on analysis of both the problem and the contexts in which the workshop has been carried out. Detailed descriptions for each exercise as well as a dramaturgy of the workshop are included; sample texts and handouts for each station can be found in the Appendix. Based on anecdotal participant feedback, we discuss advantages and disadvantages of the different exercises and of the workshop set-up. With the information provided, readers should be able to replicate this workshop and adapt the exercises to their own educational settings

Change of mould flux properties during continuous casting of ferritic stainless steel

During the continuous casting of stainless steel the performance of the mould powder is a key factor in this process. The content of Cr in the steel is up to 18 %, high corrosion resistance of the steel is improved with Al addition, up to 4 %. The aim of the paper was to study the change in physical properties of the casting powder, due to reactions between Al in the steel with SiO2 in the mould flux during continuous casting. In order to identify the change in the ability of lubrication casting slag with time, depending on the increase in the content of alumina in the slag. On the basis of these results, the most suitable casting powder for continuous casting of ferritic stainless steel with high aluminium content was determined

Microstructural characterisation of chromium slags

In this chromium slags that form during melting of chromium alloyed steels are examined. During melting and oxidation of these steel grades a considerable amount of chromium is lost, and gained back with slag reduction. Laboratory experiments were performed to study the mechanism of chromium oxide reduction by silicon. Slags chemistry and phase composition have a strong effect on the steelmaking process. Phase analysis revealed two types of chromium oxides, calcium chromites and chromite spinels dependent on chemistry and basicity of the slag

The Application of Waste Silica Cyclone Powder for the Protective Coating of Steel Billets

The role of a protective coating is to diminish the steel surface scaling during the reheating for hot rolling. The protective coating consists of several components, and the effect of the coating is based on the formation of the modification of Al2O3, amorphous SiO2 and FeO×Al2O3, which all exhibit low permeability to oxygen at temperature up to 1200 °C. The silica sand powder from the cyclone is a waste product in the separation of silica sand. Tests confirmed that waste cyclone powder could replace the silica flour as one of the ingredients in the protective coating. The results of the efficiency of the protective coating after the advanced application of waste cyclone powder on AISI 1059 and AISI 6150 steels are presented. The application of the coating decreased the oxidation and decarburisation of the steel surface during the reheating for hot rolling

Reduction of chromium oxides with calcium carbide during thestainless steelmaking process

An efficient reduction of chromium from slag requires an appropriate reduction agent for the given steelmaking technology. The usual slag reduction praxis consists of carbon injections and additions of ferrosilicon and aluminum.Reduction of chromium containing slags with calcium carbide is an appealing alternative. Calcium carbide is a strong reduction agent that unlike ferrosilicon and aluminum also provides the possibility of foaming slag formation.Experimental work regarding chromium slag reduction with calcium carbide towards usual slag reduction praxis is described in this work. The results show that higher reduction rates in the stage of refining period of the melt and higher level of overall chromium reduction from slag can be reached with the blowing of CaC2

Calculation of heat transfer coefficients

In forced-convection furnaces for reheating Al-alloys, convective heat transfer mechanism dominates. Al-body temperature prediction model uses measured furnace temperature as boundary condition. To calibrate such model, a convective heat transfer coefficient h is to be determined. Optimization technique is used here to determine h for every measured temperature sample so that measured temperatures match calculated, supposing radiative heat transfer coefficient constant and neglecting conductive heat transfer. Obtained h stably converges during normal reheating conditions. The obtained model is 4-fold cross-validated and obtained Root Mean Square Error of whole reheating profiles are [7,7; 20,4; 10,4; 12,5] °C

Understanding the decision to screen for lung cancer or not: A qualitative analysis

Background Although new screening programmes with low‐dose computed tomography (LDCT) for lung cancer have been implemented throughout the United States, screening uptake remains low and screening‐eligible persons' decisions to screen or not remain poorly understood. Objective To describe how current and former long‐term smokers explain their decisions regarding participation in lung cancer screening. Design Phone interviews using a semi‐structured interview guide were conducted to ask screening‐eligible persons to describe their decisions regarding screening with LDCT. The interviews were transcribed and analysed with conventional content analytic techniques. Setting and participants A subsample of 40 participants (20 who had screened and 20 who had not) were drawn from the sample of a survey study whose participants were recruited by Facebook targeted advertisements. Results The sample was divided into the following five groups based on their decisions regarding lung cancer screening participation: Group 1: no intention to be screened, Group 2: no deliberate consideration but somewhat open to being screened, Group 3: deliberate consideration but no definitive decision to be screened, Group 4: intention to be screened and Group 5: had been screened. Reasons for screening participation decisions are described for each group. Across groups, data revealed that screening‐eligible persons have a number of misconceptions regarding LDCT, including that a scan is needed only if one is symptomatic or has not had a chest x‐ray. A physician recommendation was a key influence on decisions to screen. Discussion and conclusions Education initiatives aimed at providers and long‐term smokers regarding LDCT is needed. Quality patient/provider communication is most likely to improve screening rates

The reception of Canadian literature in Slovenian translations till 1980

At the beginning of this research, there were first of all some main questions hat had to be taken under consideration. The primary questions were: how many Canadian authors writing in English were translated into Slovenian, how far back do these translations go, who were the translators and what was the influence on the Slovenian reader. The main focus was given to the literary works that specifically spoke about Canada, her characteristics and people. On the other hand, literary works viewing the Canadian lifestyle, were not given thorough attention. This way the answer to how Canadian literature was accepted in Slovenia could be summarised. The geographical point of view has been a very important aspect. The vast Canadian land and the different locations mentioned in the translated works are of importance, especially when reflecting the great distances