Effects of Continuous Steaming on Milling Characteristics of Two Indica Rice Varieties

Parboiling improves milling characteristics of rice in a positive manner, which has been found to influence consumers demand and acceptability. A laboratory model of continuous steaming unit was fabricated and tested with two indica rice varieties, fine （ADT39） and coarse （CO43） rice, at three different soaking temperatures （50, 60 and 70 ~C） for 4 h and five residence times of steaming （1.0, 1.5, 2.0, 2.5 and 3.0 min）. The effects of continuous steaming on milling characteristics of rice were studied and compared with the values obtained from the control experiment （open steaming process under laboratory conditions）. The favourable conditions for continuous parboiling of the fine variety ADT39 were identified as soaking at 70 ~C for 4 h and 3.0 min residence time of Steaming. These conditions showed head rice outturn of 74.0%. The favourable processing conditions for the coarse variety CO43 were found to be 4 h of soaking at 60 ~C and steaming of 3.0 min residence time, and at these conditions the head rice outturn was 73.9%.

Effects of Steaming on the Tensile Mechanical Properties of Cashmere Fiber

The cashmere yarns were set in steam of 120℃ for 5 minutes after they had been extended to about 3% and wrapped onto the glass mandrels, which was relevant to the industrial setting processes. The effects of the steaming on the tensile mechanical properties of cashmere fiber are investigated. The extension in ' yield region' and the extension at rupture of the set cashmere fiber are obviously decreased.

ANALYSIS ON THE PRINCIPLE OF SERICIN MODIFICATION WITH DIRECT STEAMING FOR COOKING COCOON

Results of circular dichromatic spectrographic analysis of sericin revealcd a modification in the character of sericinafter direct steaming for cooking dry cocoon.That is,the molecular structure of cocoon shell sericin transforms fromthe frowned random structure to β- fold structure.The sericin modification reduces undulation of the gummingforce of cocoon shell sericin. Therefore,it is one of the key ways to improve the neatness of raw silk.

Effect of Steaming, Steam-Drying and Frying on the Provitamins A and Ascorbic Acid Contents of Squash （ Cucurbita Spp.）

Vitamin A deficiency still remains a nutritional concern in Cameroon. Squashes pulp is rich in provitamins A and could help to reduce this deficiency. Unfortunately, in Cameroon, squash pulp is more often reserved for the nutrition of sick people and domestic animals. This study aimed at encouraging the consumption of squash pulp to contribute to vitamin A needs. The contents of a-carotene, all-trans-β-carotene and ascorbic acid were determined respectively by HPLC and titration with 2.6 dichlorophenol-indophenol in five landraces of raw, steamed, steam-dried and fried squash pulp from Cameroon. Moisture and total lipid content were also determined. Peeled pulp squash of 5 cm slice was steamed at 90℃ for 30 min or at 85℃ for 30 min, sliced again at 5 mm thickness and dried at 80℃ during 4 h to obtained steamed or steam-dried squashes. To have fried squashes, 40 g of 1 mm thickness slices pulp were fried in boiling refined palm oil （free of carotenoids） bath at 150℃ during 7 and 10 min. The results obtained showed that steam-drying and frying of squashes leaded to water losses （89%-95%）. As a consequence of this, the a-carotene, all-trans-β-carotene and ascorbic acid contents （expressed in g （100 g）-1 fresh portion） of steam-dried and fried squashes were significantly higher （P 〈 0.05） than those of steamed and raw pulp. However, the retention rate of provitamins A and ascorbic acid was more elevated in steamed than in steam-dried and fried squashes. These results suggest that steam-dried and fried squashes could contribute to fight against vitamin A deficiency while increasing availability of squashes.

Clinical Research on Alleviating Pain for Patients with Ankylosing Spondylitis and Their Active Function by Acupuncture with Chinese Medicine Fuming and Steaming

OBJECTIVE: To investigate clinical effect of acupuncture combined with TCM fumigation on pain and active function improvement in patients with ankylosing spondylitis. METHODS: 42 patients with ankylosing spondylitis were selected in hospital from October 2016 to October 2017, who were randomly divided into 2 groups by number table method. 21 patients received conventional treatment as control group. 21 patients combined with acupuncture, TCM fumigation treatment as observation group. Clinical indicators, activity function, pain scores were evaluated before and after treatment. RESULTS: Erythrocyte sedimentation rate, C reactive protein, alkaline phosphatase, macrophage migration inhibitory factor, BASDAI score, BASFI score, VAS score after treatment decreased in two groups compared with before treatment(P<0.05). Chest mobility, lumbar pitch, Schober test, occipital wall distance, lumbar lateral flexion after treatment increased in two groups compared with before treatment(P<0.05). Refers to distance, morning stiffness time, rump length after treatment reduced in two groups compared with before treatment(P<0.05). Erythrocyte sedimentation rate, C reactive protein, alkaline phosphatase, macrophage migration inhibitory factor, BASDAI score, BASFI score, VAS score in observation group were lower than control group after treatment(P<0.05). Chest mobility, lumbar pitch, Schober test, occipital wall distance, lumbar lateral flexion in observation group were higher than control group after treatment(P<0.05). Refers to distance, rump length in observation group were smaller than control group after treatment(P<0.05). Morning stiffness time in observation group was less than control group after treatment(P<0.05). CONCLUSIONS: Acupuncture combined with TCM fumigation can significantly improve pain and active function in patients with ankylosing spondylitis, which is worthy of clinical promotion.

基于STEAM理念联合PBL教学法在急诊医学教学中的应用研究

目的分析基于STEAM[S(science),T(technology),E(engineering),A(art),M(mathematics)]理念联合以问题为基础的教学法(problem base learning,PBL)在急诊医学教学中应用效果。方法选择2021年6月—2022年6月滨州医学院急诊科80名本临床医学专业实习生为研究对象,将其随机分为对照组、试验组,各40名。对照组接受传统教学,试验组接受基于STEAM理念联合PBL教学法。对比2组教学前后理论知识及实践操作考试成绩、实习生对教学的满意度、学习依从度及教学前后实习生职业特质评分。结果教学前,2组考核成绩对比,差异无统计学意义(P>0.05);教学3个月后,2组基础理论、实践操作考核成绩均明显提升,但试验组提升幅度更大,差异有统计学意义(P<0.001)。试验组实习生学习依从性(97.50%)高于对照组(85.00%),差异有统计学意义(P<0.001)。试验组教学方法、学术能力、带教态度管理质量评分高于对照组,差异有统计学意义(P<0.001)。教学前,2组实习生职业特质评分对比,差异无统计学意义(P>0.05);教学3个月后,试验组评分高于对照组,差异有统计学意义(P<0.001)。结论在急诊医学教学中,基于STEAM理念联合PBL教学法有利于提升实习生的综合能力,提高理论实践成绩和学习依从性。

基于STEAM理论的学龄前儿童益智类玩具设计研究

本文以设计出一套切合STEAM理论的益智玩具为目的,同时能够提升学龄前儿童的各项智力能力。通过文献查阅对STEAM理论进行深入分析,归纳出STEAM理论的4项特点,STEAM益智玩具应满足的5个方面。根据皮亚杰理论对儿童的分析,选择前运算阶段儿童为目标群体,归纳出该阶段儿童的4项益智需求。通过上述分析设计出一款STEAM益智玩具套装,为后续STEAM益智玩具设计提供了参考。

STEAM教育助力“双减”政策落地的现实困境与可为路径

STEAM教育是我国基础教育改革的一种趋势,也是助力“双减”政策落地的重要抓手。STEAM教育具有情境性、实践性、项目式、过程性、跨学科性等特征,为“双减”政策的落地提供了可能。STEAM教育助力“双减”政策落地面临课后服务质量无法保障,课堂教学质量提升效果不佳,STEAM教师胜任力不足,STEAM教育存在区域、城乡、校际差异等困境。STEAM教育助力我国“双减”政策落地可从强化综合实践活动设计,拓展课后服务内容;以项目式学习为抓手,提高课堂教学质量;注重STEAM教师培养,提高教师综合素质;注重特色发展,以数字化转型推进STEAM教育均衡发展四个方面着手。

STEAM教育视域下中学语文跨学科深度学习的策略研究

STEAM教育是一种基于建构主义的跨学科教育,是对时代挑战的回应。以STEAM教育理念为突破口,解决当今中学语文跨学科教学存在的目标模糊,忽视语文本位;学科叠加,缺乏有效整合;学习浅表,缺少思维深度三方面问题。在中学语文课堂中采用:把握基点,语文本位,开展专题研修;明确跨点,融通互动,进行整合探究;找准落点,合作生成,促进素养提升这三种方式,以更好的教促进更好地学,推动中学语文跨学科深度学习发生,提升学生语文核心素养,将学生培养成符合时代要求的全面发展的高素质人才。

STEAM教育理念下的项目式教学模式建构研究

随着社会的进步和科学的快速发展,社会对于创新型人才和复合型人才的需求越来越多。为了培养出更多符合社会需要、促进社会发展的人才,本文基于STEAM教育理念对项目式教学模式进行研究,从项目式教学的过程出发,构建“项目策划-项目执行-项目反馈”的教学模式,培养学生的创新思维以及解决问题的能力,试图为项目式教学提供新思路。

STEAM教育理念下电场自动测绘仪的开发

将静电场教学实践中遇到的问题,作为课外拓展课题研究是新工科人才培养的有效方式之一。本文基于STEAM教育理念,采用项目式学习,以学生为主体,以跨学科融合和创新为导向,制定教学目标和教学方法。将物理理论和实验创新有机融合,引导学生结合单片机技术和Matlab程序,设计出新型可视化电场自动测绘仪。该仪器操作简便高效,测量精度高,还能直观展示电场的动态变化。而学以致用的过程,提高了学生的创新能力和知识综合运用能力,也为高校的教学改革提供了新思路。

基于STEAM教育理念的高职“现代信息技术”课程教学实践研究

在物联网、大数据、人工智能等现代技术日新月异的背景下,企事业单位对应用型、复合型技能人才的要求越来越高。将多学科知识融会贯通,在提高学生创新创业能力的同时,解决职业教育过程中的各种难题,促进学生全面发展。文章以高职高专“现代信息技术”课程为载体,秉持STEAM教育理念,将课程思政和职业素养元素融入学科知识,提高学生综合素质,实现全方位育人。

融合STEAM理念的“细胞工程”课程教学改革探索

“细胞工程”是生物技术、生物工程等生物专业的核心基础课程之一。面向新工科建设背景下对人才培养的新要求,基于STEAM教育理念,结合“细胞工程”课程特点,坚持立德树人根本任务,以学生为中心,面向生物医药产业的发展需求,对课程的教学目标、教学设计、教学体系、教学理念、教学方法、教学考核评价等进行改革,旨在激发学生的求知欲,培养学生多学科交叉融合理念,使学生善于从多学科角度思考问题、提出问题、分析问题和解决问题,提高学生创新思维,提高课程教学效果。

基于STEAM理念的初中化学情境教学模式探究——以“水的净化”新授课为例

STEAM理念和情境教学是化学学科核心素养教学研究的两大热点。本文提出基于STEAM理念的情境教学的设计流程,选择“水的净化”教学主题,根据教学内容构思STEAM情境,明确重难点以及教学、评价、STEAM的目标,形成完整教学设计后开展教学,并通过量表了解学生的学习感受。研究发现,学生能够有效代入和体会情境,课程培养了学生的科学态度与责任等核心素养。因此,本文总结了基于STEAM理念的情境教学特征,为一线教师开展情境教学、跨学科实践提供新的思路。

基于STEAM理念的冰雪文创设计教学与实践

目的在大力促进冰雪主题文艺创作、推广冰雪文化的政策背景下,研究冰雪文创设计教学与STEAM理念结合的方法并进行课程教学实践。方法挖掘冰雪文化资源,分析冰雪文化相关的背景和文创产品种类,分析冰雪文创产品设计教学中的挑战。以STEAM教育理念为理论支撑,从教师和学生2个视角探讨科学、技术、工程、艺术、数学5个学科综合应用于冰雪文创设计教学的方式。教师首先运用该理念进行设计理论教学,然后通过布置并指导学生完成设计任务进行设计实践教学,最后以太阳岛风景区冰雪文创IP设计为例,引导学生用STEAM理念探索设计创意转化的方式,解决文创设计中的问题并完成设计。结论STEAM理念与冰雪文创设计教学融合的模式,将美育融入专业课程教学,有助于提高学生的跨学科思维能力、创新能力和设计实践能力。同时探索了冰雪文化知识转化为创意灵感的新路径,也为冰雪文化的传承和传播提供了新思路。

基于STEAM教育理念的“民间传统技艺”课程教学改革与实践

随着全球化和信息化的快速发展,教育模式和教育理念也在不断更新。STEAM教育作为一种重视实践、注重真实问题解决的跨学科教育理念,正逐渐成为全球教育领域关注的焦点。我国《教育信息化“十三五”规划》明确提出了有条件的地区要积极探索STEAM教育、众创空间等新型教育模式,着力提升学生的信息素养、创新意识和创新能力。(1)在这样的大背景下,将STEAM教育理念融入“民间传统技艺”课程进行教学改革与实践,利用信息技术促进美术教育教学内容和模式的改革,不仅有助于培养学生的主动探索精神,发展学生的创新意识,提升教学质量,更能为传统文化的传承与发展注入新的活力。

面向新质人才需求的STEAM培育机制研究

教育是缓解新质生产力与人才供需矛盾的核心策略,而基础教育则是塑造新质人才不可或缺的基石。为夯实未来新质人才的培育基础,基础教育阶段教育工作者应紧密围绕新质人才的需求,构建一套高效的人才培育机制,助力学生顺利转型为新质人才。在这一过程中,复合型教育目标的引导、跨学科知识体系的重组以及个性化教育策略的定制,为STEAM教育在基础教育阶段赋能新质人才培育提供了强有力的支撑。为了满足新质人才培育的多维需求,教育工作者需从五个关键层面重新构建STEAM教育培育机制:核心培育理念的重塑、根本培育目标的明确、基础培育条件的强化、首要培育策略的制定和关键培育基石的稳固。为了推动STEAM教育在新质人才培育方面更好地适应数智化时代的发展,教育工作者也需采取一系列措施:确保STEAM教育的高效运行,完善其跨学科知识体系,构建虚实联通的STEAM教育空间,提升教师的STEAM素养,并构建一个充满活力的STEAM人才培育新生态。这些措施的实施,将有力推动STEAM教育在培育新质人才方面的创新与发展,为新时代的社会进步贡献力量。

基于STEAM教育理念轻化工程产学研协同育人教育模式探索——以染整工艺学(一)为例

2014年,美国国际技术与工程教育学会提出落实 STEAM 教育的“6E”教学模式,这与工科重视学科融合、工程实践的教学目标相一致。本文以轻化工程专业染整工艺学(一)课程的6E教学模式改革为例,通过在课堂教学中开发学生创新思维,课下鼓励学生参与科技创新与工程实践活动,以校企合作为桥梁,不断提高学生思想道德素质、社会实践能力以及科研探索能力,以实现产学研协同育人的目的。

融合STEAM与PBL的中药生物技术课程教学改革探索与实践

为适应新医科对中药专业人才培养的新要求,本文对中药生物技术课程教学现状进行分析,提出了融合STEAM教育理念和PBL教学模式的教学改革措施。通过课前、课中和课后3个阶段,对该教学模式进行改革与实践,并对其实施效果与评价进行研究。通过该教学模式,学生的学习兴趣得到提高,创新思维和实践能力得到锻炼,有助于培养中药学复合型创新专业人才,满足中药产业发展的新需求。

“活教育”理论指导下的幼儿园STEAM课程实施研究

在“活教育”理论指导下,幼儿园实施STEAM课程过程中,通过深度开发课程内容的教育价值,将不同领域内容有机融合,不仅有助于完善幼儿园的课程体系,而且有助于提升幼儿园教育质量。基于此,文章主要对“活教育”理论与STEAM课程进行概述,解析“活教育”理论指导下幼儿园STEAM课程实施的可行性,并探索行之有效的实施策略,旨在帮助幼儿园高质量地实施STEAM课程,推动我国幼儿教育事业的发展。