The Brief Introduction on Q—T Plateau Research of Chengdu University of Technology

Chengdu University of Technology (CDUT), located on the eastern edge of the Qinghai—Tibet Plateau, a higher education and research institution with a focus on geosciences, has paid special attention to scientific research on Q—T Plateau. In the earlier 1950s Professor Zhang Zhuoyuan, the former president of CDUT and Professor Ren Tianpei joined the geological survey in Tibet as members of the Tibetan geological working group organized by the Central Government of China. Since the 1980s, research on the Q—T Plateau has reached a golden age, and recognized this, CDUT established the Resources and Environment Research Center of Qinghai—Tibet Plateau in order to lead and coordinate the research around the Plateau continuously and smoothly. There are often more than 50 geologists involved in research during any given year. Scientists from CDUT are now conducting many kinds of research programs covering the whole area of the Plateau, from the Himalayas in the south to the Tianshan Mountains in the north, from the Longmen Mountains and the West Yunnan Plateau in the east to Ali area in the west. Scientists from CDUT have completed cooperative research programs with foreign scientists from the U. S., France, U.K., Japan, Austria, Canada, Germany and Australia. Research subjects include National Key Basic Research, State Scientific Key Projects, National Natural Scientific Foundation Projects, National Outstanding Young Scientists Foundation Projects, as well as Basic Geological Survey, Mineral Resources Evaluation, Analysis of Potential Oil and Gas Resources, Geohazard Protection.. More than 40 projects and 6 geological maps in different scales (1∶1000000, 1∶200000, 1∶50000) have been completed.. Research funding has increased to billions of yuan. Thousands relevant research papers and works have been published. More than 20 projects have won scientific achievement awards at national, ministerial and provincial levels. Meanwhile, a research group of young and middle\|aged scientists led by Prof. Wang Chengshan has formed and is determined to devote itself to the Q—T geological research. Many of them have broken established rules and have become professors or gained prizes. To strengthen Q—T research, the Ministry of Land and Resources specially established the Laboratory of Continental Dynamics of the Qianghai—Tibet Plateau at CDUT in 1999. Academicians, Li Tingdong and Liu Baojun, are the Honorary Directors of the Lab and the Academic Committee of the Lab respectively. Professor Wang Chengshan and Prof. Zhu Jieshou are the Directors.

基于木装饰板与TRC薄板叠合的幕墙装饰材料的研究

通过研究玻璃纤维掺入量对增强混凝土的影响,将环保型木装饰板与织物增强混凝土(TRC)相结合,制成了一种新型绿色的叠合薄板T-TRC(Timber-textilereinforcedconcrete)。通过对增强混凝土的研究表明:当玻璃纤维掺入量为2.0%(体积分数)时,其抗压强度可达58.7MPa,表现最佳。并对以其作为基体所制得的复合材料叠合薄板的界面粘结性和抗弯性能的研究表明:T-TRC构件在102.6kN的极限荷载下,滑移量仅为2.48mm,表现出了优异的粘结性和承载力;在木板和混凝土的单向抗弯试验中,即使在39.6kN的极限荷载下,TTRC叠合薄板间均未发生开脱现象,具有良好的整体性和安全性,这为T-TRC在作为绿色建筑幕墙和模块化建筑板材方面的应用提供了参考。

Inevitability and Emergent Problems of Science &Technology Innovation Access to Integration

The causes and the problems of integration of scientific ＆ technical innovation （ISTI） and inevitability are proposed. The status of domestic scientific ＆ technical innovation is analysed. A series of emergent managerial problems caused by the system ISTI （SISTI） are pointed out. Because of Hall three dimensions structure＇s enlightenment, a three dimensional logical net diagram in which the system integration of innovation based on problem in real world but not on disciplinary logic is drawn. The intelligent group＇ s need span is greater under the conditions of relatively low material level than common groups who have lower degree of education. The SISTI is composed by multi-rule and intelligent multi-agent behavior. It is concluded that the logical relationships of integrated technology which based on the author＇s experience and observation must be considerded for a valid management of SISTI.

Application of oxygen-sensing technology to measure seed quality of Ginkgo biloba

Germination tests are currently the most widely used method to evaluate seed quality of Ginkgo biloba L., but they are time-consuming and labor intensive. Oxygen-sensing technology, based on the principle of fluorescence quenching to detect oxygen and assess seed quality was used to rapidly evaluate seed quality of two varieties (Shandong Tancheng 202 and Zhejiang Dafoshou) of G. biloba from five mother plants. Fifteen samples of three vigor levels were produced by accelerated aging treatments. This process was applied in duplicate. A portable oxygen-sensing detector was employed to measure oxygen content during seed germination in a closed system at 25 A degrees C each day until day 14. Four oxygen metabolism indices were calculated: oxygen consumption index, oxygen consumption rate, critical oxygen concentration, and theoretical germination time (T (GT)). Additionally, we tested laboratory germination and field emergence. The results of a one-way analysis of variance and correlation analysis showed that T (GT) was the candidate index to evaluate seed quality of G. biloba. Therefore, the T (GT) value was used to validate the reliability of oxygen-sensing evaluation for Zhejiang Dafoshou seeds kept under four storage conditions. The trend in the change in oxygen metabolism agreed completely agreement with that of seed germination under all storage conditions. The oxygen-sensing test reliably and rapidly assessed seed quality of G. biloba. The germination rate of Zhejiang Dafoshou was accurately predicted by T (GT).

Practice and Exploration of New Rural Construction in West Bank of Taiwan Strait Led by Spark Science and Technology

According to practice and exploration of spark program for 26 years in Quanzhou,the main model and their effects of new rural construction in west bank of Taiwan Strait led by spark science and technology were expounded. Six spark program systems were established,consisting of policy support guide,science and technology project lead,experts' intelligence support,spark science and technology training,scitech information service and spark program demonstration. Five spark projects were implemented to promote new rural construction in the west bank of Taiwan Strait,such as constructing the national spark industrial zone,organizing the new rural construction led by science and technology,constituting spark sci-tech innovation center,developing the rural informatization,and establishing science and technology commissioner bases. Finally,enlightenment of spark program and its development ways in the future were put forward.

Huazhong University of Science and Technology(H.U.S.T)

1.Origins and DevelopmentHuazhong University of Science andTechnology(H.U.S.T.)is one of the leadinguniversities in China directly under the StateCommission for Education.H.U.S.T.was founded by gathering thefaculty and students as well as the equip-

Performance of Double-Pole Four-Throw Double-Gate RF CMOS Switch in 45-nm Technology

In this paper, we have investigated the design parameters of RF CMOS switch, which will be used for the wireless tele-communication systems. A double-pole four-throw double-gate radio-frequency complementary-metal-oxide-semicon- ductor (DP4T DG RF CMOS) switch for operating at the 1 GHz is implemented with 45-nm CMOS process technology. This proposed RF switch is capable to select the data streams from the two antennas for both the transmitting and receiving processes. For the development of this DP4T DG RF CMOS switch we have explored the basic concept of the proposed switch circuit elements required for the radio frequency systems such as drain current, threshold voltage, resonant frequency, return loss, transmission loss, VSWR, resistances, capacitances, and switching speed.

A new approach to assessing the science and technology competitiveness of China's provincial academies of sciences

Purpose： This study aims to establish a new framework for evaluating science and technology （S＆T） competitiveness that is appropriate to meet the needs of provincial academies of sciences （PASs） in China.Design/methodology/approaches： An evaluation index, including such assessing indicators as research strength, research impact, research development and trends, and regional contributions, is developed for China＇s PASs. Taking the Jiangxi Academy of Sciences （JXAS） as an example, we first explain how to apply this framework to analyze the strengths and weaknesses of PASs in China. Then, we compare the results of all 17 PASs in order to get a comprehensive understanding of their competitiveness.Findings： Our results show the development path, current status, innovation advantages, and weaknesses of JXAS very clearly. Based on our comparative analysis, we ranked the 17 PASs from the perspective of different dimensions, by which their competitiveness strengths and weaknesses can be highlighted for improvement.Research limitations： In this analysis, we did not take S＆T policies, S＆T systems, or historical factors into consideration. Thus, we may have ignored the influence of the soft individual differences of different PASs in China..Practical implications： The evaluation index developed in this paper provides a useful insight into an analytical method that can be used by PASs or other provincial research institutions （PRIs） to assess their competitiveness.Originality/value： Compared with existing evaluation frameworks, our method has two main characteristics： First, we added three new dimensions, including the PASs＇ applicable research outputs, regional contributions, and comparative advantages; second, we conducted a comparative analysis of local research institutes in their different advantaged industrial areas, which makes our analytical method more comprehensive for local research institutions.

织物增强混凝土(TRC)永久模板叠合混凝土结构U形梁模的研制

提出一种采用TRC薄板(织物增强混凝土textile reinforced concrete)作为永久模板叠合RC结构体系,在预制TRC永久模板中浇筑混凝土,两者共同组成结构构件。TRC永久模板具有抗裂性、高延性和良好的耐久性,既起到模板的作用,又作为结构的一部分参加共同工作,有利于保护钢筋,提高结构构件的耐久性和有效的承载力、延性,节约大量的施工模板。进行了U形TRC永久梁模的研制,设计了U形梁模的制作模板和部分主筋的定位方法,并进行了U形梁模的制作。初步试验结果表明该技术的可行性。

六倍体小黑麦新品系T-133引种鉴定及特性分析

小黑麦是小麦和黑麦属间人工杂交形成的新物种,与小麦和黑麦相比,小黑麦的生物产量及蛋白质、赖氨酸含量高,适口性更好,可作为优质禾本科牧草,以促进饲草多元化发展。为了丰富甘肃省饲草种类,给农牧交错区提供高产稳产、耐盐碱、抗寒旱、抗病虫的小黑麦新品种,2013年从CIMMYT引进了六倍体小黑麦新品系T-133,并经2014—2020年连续水旱鉴定、品比试验、生产试验进行引种鉴定。在2020年甘肃省不同生态区生产试验中,平均折合籽粒产量7814.94 kg/hm^(2),比对照品种宁春4号增产17.45%;平均生物学产量22.39 t/hm^(2),比对照品种石大1号增产12.92%。该品系为粮草兼用型,春性,生育期100~109 d,株高115~120 cm,穗长10.0~10.5 cm,可育小穗数21~24个,穗粒数45~50粒,千粒重47~56 g。富含铁、锌等微量元素,品质优良,抗病性强。适宜在甘肃河西、中部及生态区域相似的青海、宁夏等高寒旱区种植。

房地产股价波动对高技术板块的溢出效应研究——基于DGC-t-MSV模型

过度的金融资产投资可能导致房地产股价泡沫,并且通过风险溢出渠道给高技术板块带来价格冲击。研究聚焦于房地产行业和高技术产业的股票价格指数,结合MODWT分解和DGC-t-MSV模型进行实证分析,结果表明:其一,“房地产-高技术”的股票价格动态相关,房地产行业价格波动的传导作用更加强烈,对高技术板块具有明显的溢出效应;其二,实施限制性政策后房地产行业的挤出效应降低,高技术及其分类产业的创新投入受到的限制逐渐减弱;其三,短、中期频繁交易是导致房地产溢价的主要原因,需要警惕高技术板块面临的溢出风险。积极引导高技术板块的价值投资,合理配置技术要素,能够有效促进高技术产业的高质量、高水平发展。

有所作为:将信息研究转化为实践、政策和行动——2023年ASIS&T年会综述

[目的/意义]探究第86届ASIS&T年会成果特点,有利于把握图书情报与信息科学领域2023年研究进展,展示其最新研究动态。[研究设计/方法]通过描述性统计分析、可视化图谱和文本分析法,对2023年ASIS&T年会收录成果进行文献综述,并对近10年ASIS&T年会论文内容特征的演变与发展进行分析、总结。[结论/发现] 2023年ASIS&T年会成果集中在信息技术、信息与社会、信息服务与用户行为、理论与方法论四大主题,ChatGPT、大语言模型、GAI等主题成为年度新兴热点;近10年ASIS&T年会持续关注社会需求、坚守“图书馆”传统阵地、围绕“用户中心”的技术与应用持续发展、密切关注人工智能、数据科学、数字人文等新领域和交叉领域,彰显了本学科的跨学科性。[创新/价值]揭示近年来图书情报与信息科学领域的研究热点,为学科研究与发展提供风向标。

T型截面铝合金型材零件成组加工技术研究与应用

针对目前飞机T型材零件单件弯曲成形效率低成形精确差的问题,提出了T型材弯曲件成组拉弯成形的成组加工方法。基于截面尺寸、引导线的曲率半径等信息建立了成组分析算法,对T型材进行分组,使用长型材拉弯成形后切割分段得到符合精确外形要求的T型材零件。通过理论计算、模拟分析和拉弯试验,验证了T型材拉弯成形成组加工技术的可行性,该方法提高了零件的制造效率和成形精度,可以大幅度降低人工矫正的工作量和加工成本。

Independent integration of the 300 t BOF of Zhanjiang in heritage of steelmaking technologies of Baosteel

Through summary and extraction of current steelmaking design,process and equipment technologies and production technologies for 300 t grade converters in Baosteel,the article analyzes and elaborates the significance of independent integration of 300 t grade converters in Zhanjiang,major targets of the independent integration in converter process technologies,equipment packages and controls,the innovated critical technologies and comparison with overseas advanced technologies,major technical difficulties in the integration in Baosteel and their solutions,as well as general mindset and final objectives of the project.The total integration of technology for Shanghai No.1 Steel Making Plant of Baosteel was undertaken by Nippon Steel.And Kawasaki Steel was responsible for the total integration of technology for 4# and 5# converters of Shanghai No.2 Steelmaking Plant of Baosteel.Based on digestion,absorption and innovation of the introduced technologies,Baosteel has firstly achieved the independent integration of 6# converter,5# RH and 3# LF projects in the Shanghai No.2 Steelmaking Plant of Baosteel.Therefore, Baosteel shall take advantages of the favorable conditions and experiences and advanced steel making technologies of Baosteeel to master the imported new steelmaking technologies in the world and then form the advanced complete set steel making technologies and equipment at home and abroad.The achievement of independent integration of Zhanjiang Steel Making Project will make the breakthrough for the construction of large - sized steel making plant in Baosteel.300 t converter technology integration is undertaken by Baosteel independently in instead of by the foreign side in the past.

航空发动机蜂窝薄壁与基板间类T型结构件电阻点焊定位工艺研究

针对1:50超大厚度比下航空发动机GH3536蜂窝和K423A基板T型结构连接时的定位焊难题,采用功率55 kVA、频率4 kHz的逆变电阻点焊机,通过设计纯铜编织线包覆纯铜块(蜂窝侧)/铬锆铜圆柱(基板侧)异构电极,增大定位点焊有效导电面积,抑制电流集肤效应。结果显示,在最佳焊接工艺参数I=1.75 kA、t=65 ms、F=27 N条件下,能够实现蜂窝与基板的冶金连接,且蜂窝表面平整度高,蜂窝芯壁未发生弯曲。SEM、EDS微观组织分析结果表明,最佳定位点焊接头界面处Ni、Ti、Cr元素含量变化较为明显,熔合界面层厚度约为3μm,其中Mo元素含量先下降再增加,并在焊接区形成了含Mo的M6C和M23C6碳化物,这些化合物在高温条件下具有较高的强度,能够满足蜂窝/基板连接时的优质定位需求。

INSURE技术联合T-piece治疗新生儿呼吸窘迫综合征的临床有效性

目的探讨新生儿呼吸窘迫综合征(respiratory distress syndrome,RDS)采用INSURE技术+Tpiece方法完成治疗的有效性。方法回顾性选取2023年1—12月齐齐哈尔医学院附属第二医院收治的50例RDS患儿的临床资料,根据不同的治疗方法分为对照组(25例,复苏囊+INSURE技术)、研究组(25例,INSURE技术+T-piece方法)。比较两组血氧饱和度最低值、平均吸氧浓度、鼻塞持续气道正压通气应用时间、心率、并发症发生率。结果研究组血氧饱和度最低值为(90.79±3.59)%,高于对照组的(81.33±2.85)%,差异有统计学意义(t=10.319,P<0.05)。研究组平均吸氧浓度、鼻塞持续气道正压通气应用时间、心率优于对照组,差异有统计学意义(P均<0.05)。两组并发症总发生率比较,差异无统计学意义(P>0.05)。结论临床对RDS患儿在治疗期间,将INSURE技术以及T-piece方法进行充分结合,可有效改善患儿的氧合及血气指标,促进病情康复。

基于人脸识别的课堂教学行为S-T分析系统设计

提出并详细介绍了一种基于人脸识别技术的课堂教学行为S-T分析系统的设计。该系统以S-T分析法为理论基础,采用多种人脸识别算法,包括年龄检测、表情分析、姿态分析等,旨在自动识别并分析教师和学生在课堂上的行为。基于大量课堂视频数据的准备、软件系统原型的设计、深入研究课堂教学行为理论等,解决人脸识别技术的算法选型、视频关键帧的分析与因果关系模型的建立、系统运行的稳定性和界面设计等关键技术问题。通过系统性的需求分析、设计与架构、实现、评估与可视化等阶段的论述,详细展现了该系统的开发过程。

T形钩预劈核联合囊膜精细处理技术治疗高度近视伴白内障的效果及对视觉质量的影响

目的探讨T形钩预劈核联合囊膜精细处理技术治疗高度近视伴白内障的效果及对视觉质量的影响。方法选取2020年1月至2022年6月收治的120例高度近视伴白内障患者为研究对象,根据治疗方式不同将其分为对照组和观察组,各60例。对照组采用白内障超声乳化术治疗,观察组在此基础上应用T形钩预劈核联合囊膜精细处理技术治疗。比较两组的治疗效果。结果观察组的视力优于对照组(P<0.05)。术后,观察组的看电视、阅读书写、夜间视物及精细操作评分高于对照组(P<0.05)。观察组的并发症总发生率低于对照组(P<0.05)。术前、术后,两组的角膜内皮六角形细胞比例、角膜内皮细胞密度无明显差异(P>0.05)。结论T形钩预劈核联合囊膜精细处理技术可提高高度近视伴白内障患者的视力改善效果及视觉质量,降低术后并发症发生率,值得推广。

热塑性复合材料T形接头制备工艺及拉伸性能研究

采用热压工艺一次成型技术制备一种碳纤维增强热塑性复合材料T形接头试件,并对其进行拉伸试验,分析了其破坏失效机制。研究结果表明:热压工艺技术稳定性较好,易成型,易制备,所得的T形接头整体性能较好;在拉伸试验中,随着载荷增大至378.81N左右,T形接头三角区与筋条腹板拐角处首先萌生细微初始裂纹,T形接头出现损伤破坏,且裂纹向突缘端部扩展直至T形接头完全破坏,最终失效破坏模式为蒙皮与筋条的分层破坏;T形接头拉伸破坏模式为接头富树脂三角区的树脂与纤维布界面分层,其拉伸破坏主要取决于树脂基体抗拉脱分层的拉伸强度。

结构加固用胶粘剂T型剥离测试技术与标准探析

本文比较和分析了结构加固用胶粘剂(包括粘钢胶、浸渍胶、植筋胶和裂缝胶等)相关标准规定的T型剥离检测规定和技术要求,探讨了T型剥离测试的技术工艺对测定结果的影响。通过对比国内外发布的相关标准,针对钢-钢T冲击剥离长度检测中胶层厚度对其剥离性能的影响进行了探索,并开展了相关试验,取得了初步进展。最后,结合国内外相关标准中规定的检测技术和方法对其进行了评价。研究结果表明:(1)本文中所引用的不同T型剥离测试的标准存在较大差异,且均未针对不同行业和不同领域应用的结构胶粘剂进行特殊限定。由于材料本身的性能评价与测试技术存在较大差异,因此为规范T型剥离测试方法在胶粘剂行业中的应用,在标准的制修订上仍有大量工作需要开展。(2)国内外现行与加固用胶粘剂T型剥离相关的标准均未对试件的胶层厚度范围做出明确规定,仅在进行T冲击剥离长度的测试时记录胶层厚度,而记录的胶层厚度值的高低并不影响对结果的判断。T冲击剥离能力是衡量结构胶韧性的重要指标,胶层的厚度范围会明显影响T冲击剥离能力。标准在该方面的不明晰不利于T冲击剥离长度或抗冲击剥离能力的判定,也不能客观反映胶粘剂韧性的真实检验。(3)国内现行加固用胶粘剂T型剥离测试的标准在检测方法上的不细致、不统一以及个别方面的不合理,给生产厂家、设计单位及检测机构都带来了较大的困惑。因此,应加强对T型剥离测试的相关研究,出台更为完善的标准,提升其科学性和适用性,以促进加固用胶粘剂性能评价的检测技术进步及行业的健康发展。