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课程目标达成度评价的价值导向:从举证到赋能

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黑龙江高教研究 2025年第2期43卷 109-114页

作者：蒋成香上海师范大学上海200234

课程目标达成度评价是产出导向的师范人才培养内部评价体系的起点和重要内容,其贯穿师范类专业认证和人才培养全周期,需要从认证体系和人才培养两个视角探究其实质。将外部师范类专业认证要求内化为师范人才内部培养要求,将有助于实现... 详细信息

课程目标达成度评价是产出导向的师范人才培养内部评价体系的起点和重要内容,其贯穿师范类专业认证和人才培养全周期,需要从认证体系和人才培养两个视角探究其实质。将外部师范类专业认证要求内化为师范人才内部培养要求,将有助于实现从举证导向到赋能导向评价的价值转变。在赋能评价建构路径上,建立以师范生教师职业能力标准为核心的培养体系是赋能评价的基础,以师范生教师职业能力培养为导向设计课程教学评价任务、教师将评价融入教学研究从而提高自身专业水平、师范生将参与评价融入学习是实施赋能评价的切入点,以适切的评价取向实施赋能评价是其评价模式。

关键词：师范类专业认证课程目标达成度评价价值导向举证赋能

Particular Chinese contributions to extracorporeal liver surgery

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Hepatobiliary & Pancreatic Diseases International 2025年第1期24卷 57-66页

作者： Abudusalamu Aini Qian Lu Hao Wen Wen-Tao Wang Tuerganaili Aji Zhi-Yu Chen Lei-Da Zhang Zhan-Yu Yang Jia-Yin Yang Hai-Ning Fan Wei-Lin Wang xiang-cheng Li Yu Zhang Jia-Hong Dong Hepatopancreatobiliary Center Organ Transplantation Center Beijing Tsinghua Changgung Hospital Tsinghua University Key Laboratory of Digital Intelligence Hepatology(Chinese Ministry of Education) School of Clinical Medicine Tsinghua University Research Unit of Precision Hepatobiliary Surgery Paradigm Chinese Academy of Medical Sciences Institute for Organ Transplantation and Bionics Institute for Precision Medicine School of Clinical Medicine Tsinghua University Hepatobiliary&Echinococcosis Surgery Digestive&Vascular Surgery Center The First Affiliated Hospital of Xinjiang Medical University Department of Liver Surgery&Liver Transplantation Center West China Hospital of Sichuan University Department of Hepatobiliary Surgery Southwest Hospital The Army Medical University Faculty of Hepato-Pancreato-Biliary Surgery Chinese People’s Army General Hospital Liver Transplantation Center&Organ Transplantation Center West China Hospital of Sichuan University Hepatopancreatobiliary Surgery School of Clinical Medicine Qinghai University Affiliated Hospital Department of Hepatobiliary Surgery The Second Affiliated Hospital Zhejiang Univeristy School of Medicine Department of Hepatobiliary Surgery The First Affiliated Hospital of Nanjing Medical University Department of Hepatobiliary Surgery Sichuan Provincial People’s Hospital

Extracorporeal liver surgery(ELS), also known as liver autotransplantation, is a hybrid(cross-fertilized) surgery incorporating the technical knowledge from extreme liver and transplant liver surgeries, and recently became more embraced and popularized among leading centers. ELS could be summarized into three major categories, namely, ex-situ liver resection and autotransplantation(ELRA), ante-situm liver resection and autotransplantation(ALRA) and auxiliary partial liver autotransplantation(APLA). The successful development of ELS during the past 37 years is definitely inseparable from continuous effort s done by Chinese surgeons and researchers. Especially, the precision liver surgery paradigm has allowed to transform ELS into a modularized, more simplified, and standardized surgery, to upgrade surgical skills, to improve peri-operative outcome and long-term survival, to increase the capability of surgeons to select more complex diseases and to expand the level of medical service to the population. This review highlights the Chinese contributions to the field of ELS, focusing thereby on features of different surgical types, technical innovations, disease selection and surgical indication, patient prognosis and future perspectives.

关键词： Ex-situ ex-vivo liver resection Ex-situ in-vivo liver resection Semi- ex-vivo liver resection Ex-situ liver resection after in-situ hepatectomy Liver autotransplantation Autologous liver transplantation Bench hepatectomy Back-table liver resection Precision liver surgery

Controlled Radical Polymerization:from Oxygen Inhibition and Tolerance to Oxygen Initiation

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Chinese Journal of Polymer Science 2021年第9期39卷 1084-1092页

作者： Ning Li xiang-cheng Pan State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200438China

Molecular oxygen is a radical scavenger in both conventional and controlled radical polymerization(CRP),resulting in many time-consuming methods for physically removing oxygen before the *** approaches have been developed to have oxygen toleranee by chemically consuming or converting molecular oxygen into non-initiating species to address this ***,we propose another approach called oxygen initiation that directly transforms molecular oxygen into the initiating carbon radical in *** feature article summarizes our rece nt developments in this *** n-initiated reversible additi on-fragmentation transfer(RAFT)polymerization has been successfully conducted using oxygen and trialkylborane as co-initiators under the ambient conditions and atmosphere without any prior degassed *** gas-triggered initiation provides the opportunity for spatiotemporal control of the polymerization by molecular oxygen or *** synthesized alkylborane compounds could derive the predesigned structure of the initiating alkyl radical to minimize the side reacti ons and free polymer chai ns,achievi ng the synthesis of ultra-high molecular weight *** challe nges and perspectives are also discussed in the end.

关键词： Oxygen Radical polymerization Controlled Alkylborane RAFT

Pretreatment of heterocyclic pesticide wastewater using ultrasonic/ozone combined process

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Journal of Environmental Sciences 2011年第5期23卷 725-730页

作者： Zhenglong Xiong xiang cheng Dezhi Sun College of Environmental Science & Engineering Beijing Forestry University Beijing 100083 China

Ultrasonic/O3 combined process was employed to pretreat heterocyclic pesticide wastewater for increasing biodegradability and reducing biological toxicity. Influences of ultrasonic frequency, ultrasonic power, probe diameter, initial pH and 03 dosage on the COD removal were studied. The results showed that the ultrasonic/O3 process significantly improved the biodegradability and reduced the biological toxicity of the wastewater. The ratio of BODs/COD was increased from 0.03 to 0.55 and the EC50 increased from 11% to 52% under ultrasonic/O3 treatment. Low ultrasonic frequency brought better COD removal. Initial pH was found to have a high influence on the COD removal and alkaline conditions were more favorable. The influences of ultrasonic power and probe diameter were small. With an increase in O3 dosage, COD removal was effectively improved. The optimal operational parameters for the combined process on COD removal were ultrasonic frequency 20 kHz, initial pH 9.00, ultrasonic power 300 W and dosage of O3 454.8 mg/（***）, under which the efficiency of COD removal reached 67.2%.

关键词： heterocyclic pesticide wastewater ultrasonic O3 BOD5/COD biological toxicity

Energy-limiting factor for coal and gas outburst occurrence in intact coal seam

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International Journal of Mining Science and Technology 2021年第4期31卷 729-742页

作者： Qingyi Tu Yuanping cheng Sheng Xue Ting Ren xiang cheng State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines Anhui University of Science and TechnologyHuainan 232001China Faculty of Safety Engineering China University of Mining and TechnologyXuzhou 221116China School of Civil Mining&Environmental EngineeringUniversity of WollongongNSW 2522Australia

This research reviewed the mechanics and gas desorption properties of intact coal,and tested the crushing work ratios of different intact coals,and then,studied the stress conditions for the failure or crushing of intact coal and the gas demand for the pulverization of intact coal *** a real-life outburst case is examined,the required minimum stress for intact coal outburst is *** study concludes that the crushing work ratios of three intact coal samples vary from 294.3732 to 945.8048 J/m^(2).For the real-life case,more than 2300 MJ of transport work is needed,and 10062.09,7046.57 and 5895.47 m^(3) of gas is required when the gas pressure is 1,2 and 3 MPa,*** crushing work exceeds the transport work and even reaches 13.96 times of the transport *** to provide such an enormous crushing work is an energy-limiting factor for the outburst in intact *** strain energy is needed for the crushing work,and the required minimum stress is over 54.35 MPa,even reaching 300.44 *** minimum stresses far exceed the in-situ vertical and horizontal stresses that can be provided at the 300–700 m mining depth range.

关键词： Coal and gas outburst Intact coal Crushing work ratio Geological factors Outburst energy

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荒漠草原混牧牛羊的放牧行为特征

草业学报 2025年第1期34卷 226-237页

作者：张振豪贾子玉李鑫宇程云湘内蒙古大学生态与环境学院内蒙古呼和浩特010021 蒙古高原生态与资源利用教育部重点实验室内蒙古呼和浩特010021

荒漠草原混合放牧家畜的行为特征对草地资源的可持续利用具有重要意义。本研究在内蒙古自治区锡林郭勒盟镶黄旗的荒漠草原牛羊混合放牧牧场开展。试验选取了畜群中的4头牛与8只羊,通过分别佩戴载有三轴加速度传感器的GPS定位项圈,分析... 详细信息

荒漠草原混合放牧家畜的行为特征对草地资源的可持续利用具有重要意义。本研究在内蒙古自治区锡林郭勒盟镶黄旗的荒漠草原牛羊混合放牧牧场开展。试验选取了畜群中的4头牛与8只羊,通过分别佩戴载有三轴加速度传感器的GPS定位项圈,分析了混牧牛羊放牧时间(GTIME)与放牧活动水平(GODBA)的时间动态,并探讨了牛羊放牧行为特征对草地资源月份变化的响应模式。结果表明,荒漠草原混牧牛羊的GTIME与GODBA呈显著正相关关系(R2>0.60),且牛羊的GODBA对草地资源的响应模式存在差异。其中,牛受到地上生物量的正向调控(P<0.05),受到Shannon指数的负向调控(P<0.01)。而羊则受到地上生物量与毒杂草重要值的负向调控(P<0.001),以及Shannon指数与牧草粗蛋白含量的正向调控(P<0.001)。并且,混牧牛羊24 h的行为模式均表现出“多峰”特征,且随月份变化有收缩的趋势。同时,牛羊不同行为之间的活动水平存在显著差异,且羊的活动水平整体高于牛(P<0.05)。

关键词：荒漠草原混合放牧行为特征草地资源全局动态加速度

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A novel 3D frequency domain SAGE algorithm with applications to parameter estimation in mm Wave massive MIMO indoor channels

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Science China(Information Sciences) 2017年第8期60卷 58-69页

作者： Rui FENG Jie HUANG Jian SUN cheng-xiang WANG Shandong Provincial Key Laboratory of Wireless Communication Technologies Shandong University State Key Laboratory of Millimeter Waves Southeast University Institute of Sensors Signals and Systems School of Engineering & Physical Sciences Heriot-Watt University

Millimeter wave(mm Wave) and massive multiple-input multiple-output(MIMO) wireless communication channels show some new characteristics different from conventional channels. In order to have an in-depth understanding of mm Wave massive MIMO channels, we conduct channel measurements at 16, 28, and 38 GHz frequency bands using virtual large horizontal planar arrays in an indoor office environment. First, a three dimensional(3D) frequency domain(FD) parameter estimation algorithm extended from the space alternating generalized expectation-maximization(SAGE) algorithm is proposed and used to process the measurement ***, by dividing the large array into several sub-arrays and calculating power delay profiles(PDPs), power azimuth angle profiles(PAAPs), and power elevation angle profiles(PEAPs), we analyze the changes of delay,azimuth angle of arrival(AAo A), and elevation Ao A(EAo A) over the large array. We find that the spatial cross-correlation functions(SCCFs) calculated along different directions of the planar array exhibit significant variations. Third, the comparison of the averaged PDPs(APDPs) at three different frequency bands shows that the attenuation increases when mm Wave channels move to high frequency bands. Furthermore, SCCFs of channels at three frequency bands are also compared for two uniform linear arrays(ULAs). We draw conclusion that the correlation coefficients can be affected by not only measurement environments, but also the relative angle between transmitter(Tx) pointing direction and receiver(Rx) large array, and the operating frequency bands.

关键词： millimeter wave bands massive MIMO 3D FD-SAGE algorithm planar array statistical properties

Coexistence of delay-sensitive MTC/HTC traffic in large scale networks

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Science China(Information Sciences) 2017年第10期60卷 25-39页

作者： Jianghong SHI Chen LIU Xuemin HONG cheng-xiang WANG Key Laboratory of Underwater Acoustic Communication and Marine Information Technology Ministry of Education Xiamen University Xiamen University Institute of Sensors Signals and Systems School of Engineering and Physical SciencesHeriot-Watt University

The support for mission critical machine-type-communication(c MTC) services is indispensable for the 5th generation(5G) mobile communication systems. As the c MTC and(part of) the conventional humantype-communication(HTC) services are broadband and delay-sensitive services, how to ensure their coexistence is a new and challenging problem. This paper investigates the problem of service-level resource allocation,which decides how c MTC and HTC traffic share a limited amount of radio resource. Considering a largescale network, we put forth a system model that integrates queuing models and stochastic geometric models to characterize the delay performance in self-interfering scenarios. A service-level resource allocation scheme called load division is proposed. The delay and throughput performance of c MTC and HTC are derived under different resource allocation schemes and priority scheduling policies. We show that compared with the baseline scheme of frequency division, the proposed load division scheme can significantly improve the delay performance of c MTC service, at a cost of slightly degraded MTC and HTC service capacities.

关键词： machine type communication coexistence resource allocation priority queue delay sensitive

3D non-stationary wideband circular tunnel channel models for high-speed train wireless communication systems

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Science China(Information Sciences) 2017年第8期60卷 189-201页

作者： Yu LIU cheng-xiang WANG Carlos LOPEZ Xiaohu GE Shandong Provincial Key Lab of Wireless Communication Technologies Shandong University Institute of Sensors Signals and Systems School of Engineering & Physical Sciences Heriot-Watt University Department of Electronics and Information Engineering Huazhong University of Science and Technology

This paper proposes three-dimensional(3D) non-stationary wideband circular geometry-based stochastic models(GBSMs) for high-speed train(HST) tunnel scenarios. Considering single-bounced(SB)and multiple-bounced(MB) components from the tunnel’s internal surfaces, a theoretical channel model is first established. Then, the corresponding simulation model is developed using the method of equal volume(MEV)to calculate discrete angular parameters. Based on the proposed 3D GBSMs, important time-variant statistical properties are investigated, such as the temporal autocorrelation function(ACF), spatial cross-correlation function(CCF), and space-Doppler(SD) power spectrum density(PSD). Results indicate that all statistical properties of the simulation model, verified by simulation results, can match well those of the theoretical *** statistical properties of the proposed 3D GBSMs are further validated by relevant measurement data,demonstrating the flexibility and utility of our proposed tunnel GBSMs.

关键词： non-stationary statistical properties tunnel channel model GBSM channel measurement