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职业教育数字化转型的目标牵引、逻辑解析与实现策略 被引量:5
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作者 赵丽锦 戴建平 马娱 《教育理论与实践》 北大核心 2024年第3期25-29,共5页
职业教育数字化转型是在应对外部数字经济环境变迁和内部职业教育高质量发展要求的背景下,依托数字技术赋能,围绕“国家、社会、院校、教师、学生”等多元主体,“教学模式、教学方法、教学资源”等多维内容实施的系统性职业教育生态系... 职业教育数字化转型是在应对外部数字经济环境变迁和内部职业教育高质量发展要求的背景下,依托数字技术赋能,围绕“国家、社会、院校、教师、学生”等多元主体,“教学模式、教学方法、教学资源”等多维内容实施的系统性职业教育生态系统变革与创新过程。职业教育数字化转型过程始终秉持着实现战略设计、满足现实诉求与构建未来场景的多重目标,而驱动目标实现的价值逻辑、技术逻辑和迭代逻辑贯穿于数字化转型全过程。推动职业教育数字化转型需以政策先行,指引转型方向标;资源匹配,提供转型动力源;多元协同,构建转型共同体;应用为王,落地转型新生态。 展开更多
关键词 职业教育 数字化转型 驱动目标 技能型人才 政策先行 资源匹配 多元协同
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嗜硫小红卵菌HNI-1菌剂对水稻白叶枯病和细菌性条斑病的防效 被引量:1
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作者 高爱军 鲁湘 +4 位作者 刘勇 谭新球 戴建平 张玉烛 李巳夫 《湖南农业科学》 2023年第9期58-61,共4页
为明确嗜硫小红卵菌HNI-1菌剂对水稻细菌性病害的防治效果,试验以感病品种玉针香为供试水稻品种,通过田间小区试验研究了该菌剂对水稻白叶枯病和细菌性条斑病的防治效果,结果表明:2.0亿CFU/m L嗜硫小红卵菌HNI-1悬浮剂100、200、300 mL/... 为明确嗜硫小红卵菌HNI-1菌剂对水稻细菌性病害的防治效果,试验以感病品种玉针香为供试水稻品种,通过田间小区试验研究了该菌剂对水稻白叶枯病和细菌性条斑病的防治效果,结果表明:2.0亿CFU/m L嗜硫小红卵菌HNI-1悬浮剂100、200、300 mL/667m~2处理对水稻白叶枯病的防效在末次药后14 d为56.76%~69.48%,其中300 mL/667m~2处理的防效高于对照药剂20%噻菌铜悬浮剂100 mL/667m~2处理,但差异不显著;3种浓度药剂对水稻细菌性条斑病的防效在末次药后14 d为62.49%~72.98%,且300 mL/667m~2处理的防效显著高于对照药剂处理。这表明嗜硫小红卵菌HNI-1菌剂具有防控水稻细菌性病害的应用潜力。 展开更多
关键词 水稻 嗜硫小红卵菌HNI-1 细菌性病害 白叶枯病 细菌性条斑病
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农产品直播情境下增强用户黏性的关键路径 被引量:17
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作者 戴建平 骆温平 《中国流通经济》 CSSCI 北大核心 2022年第5期30-41,共12页
农产品独特的“田间地头”直播场景能更好地呈现农村原生态产品,给直播用户带来更加直观立体的体验。农产品直播中用户的购物体验属于心理层面的主观感受,可在一定程度上主导用户的购买行为。从用户心理体验视角,基于SOR理论构建包含农... 农产品独特的“田间地头”直播场景能更好地呈现农村原生态产品,给直播用户带来更加直观立体的体验。农产品直播中用户的购物体验属于心理层面的主观感受,可在一定程度上主导用户的购买行为。从用户心理体验视角,基于SOR理论构建包含农产品直播平台、主播、用户心理体验及用户黏性的结构方程模型,利用AMOS工具以及270份问卷数据进行实证检验。结果显示,农产品直播中的用户心理体验受到平台及主播的双重影响,直播平台互动及主播互动能极大地增加用户临场感,改善用户心理体验;主播专业能力是影响用户心理体验的重要因素,主播专业能力、主播互动更趋向于通过用户心理体验来间接影响用户黏性;加强平台互动改善用户心理体验是增强用户黏性最直接而有效的路径,用户黏性越强,平台吸引用户持续购买农产品的能力越强。为更好地通过农产品直播销售商品,提升农产品品牌形象,塑造农产品品牌价值,必须准确把握用户需求,改善用户心理体验,提高用户参与积极性。因此,对农产品主播而言,需要在直播中不断强化与用户的互动,加强自身形象管理,重视主播专业能力培养;对农产品直播平台而言,需要注重用户界面开发以及交互功能设计以增强直播的趣味性,尽可能根据农产品特点为用户打造恰当的直播场景,优化用户视觉体验,改善用户购物环境。 展开更多
关键词 农产品直播 主播互动 平台互动 心理体验 用户黏性
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协同创新视角下我国先进制造业集群发展策略——基于常州市先进制造业集群的实证 被引量:11
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作者 戴建平 骆温平 《中国流通经济》 CSSCI 北大核心 2021年第1期79-88,共10页
面对国际国内双循环新发展格局,我国先进制造业创新环境变化很大,创新难度急剧增加,迫切需要企业寻求外部资源,通过集群企业间广泛合作来开展创新和技术攻关(即协同创新),以实现价值共创并分担市场风险。然而,目前尽管我国先进制造业集... 面对国际国内双循环新发展格局,我国先进制造业创新环境变化很大,创新难度急剧增加,迫切需要企业寻求外部资源,通过集群企业间广泛合作来开展创新和技术攻关(即协同创新),以实现价值共创并分担市场风险。然而,目前尽管我国先进制造业集群规模不断扩大,但集群企业在核心技术上创新动力不足,存在重集聚轻协作、产业链与创新链融合不紧密、创新路径选择不当等问题,严重影响创新绩效。为明确集群企业协同创新关键路径,提高集群企业协同程度与创新绩效,以常州市十大先进制造业集群为样本,利用结构方程模型进行实证研究。结果表明,先进制造业集群协同创新外部环境、集群企业创新学习能力、集群企业间协同能直接或间接影响集群协同创新绩效,且集群企业创新学习能力在集群协同创新外部环境与集群协同创新绩效间起中介作用。因此,为进一步推动我国先进制造业集群协同创新发展,需要从环境治理机制入手,通过财政、税收等政策来调节协同创新环境;从知识治理机制入手,建立正式或非正式组织来统筹协调集群企业开展学习活动,促进集群企业整体或局部知识创造;从信息治理机制入手,解决集群企业间信息不对称问题,提升集群资源或能力的差异性,确立持续竞争优势;从关系治理机制入手,通过硬性规则、软性协定、柔性协定为集群企业协同创新提供动力;从激励与收益分配机制入手,处理好集群整体目标与企业个体目标的关系,在确保企业个体获得合理收益的同时实现集群整体利益的最大化;从风险管控机制入手,推动集群在产业链层面、技术链层面、价值链层面的创新协同。 展开更多
关键词 先进制造业 集群协同创新外部环境 集群企业创新学习能力 集群企业间协同 集群协同创新绩效
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热轧扁钢车间步进梁式加热炉的经济指标
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作者 卢刚 代建平 喻新斌 《金属世界》 2019年第3期55-57,共3页
热轧扁钢型材的生产特性是多规格、多钢种、小批量,这种特性使得改轧换辊频繁、钢坯加热时间长,造成吨钢煤耗高、氧化烧损率高。文章通过加热炉炉温、炉压、炉内气氛的研究,把空燃比应用到加热炉操作中,结合热轧扁钢脱碳质量特性进一步... 热轧扁钢型材的生产特性是多规格、多钢种、小批量,这种特性使得改轧换辊频繁、钢坯加热时间长,造成吨钢煤耗高、氧化烧损率高。文章通过加热炉炉温、炉压、炉内气氛的研究,把空燃比应用到加热炉操作中,结合热轧扁钢脱碳质量特性进一步优化了钢坯出钢温度。通过加热炉空燃比技术研究及加热炉出钢温度的优化,重新优化了加热炉加热工艺。优化后加热炉氧化烧损率降低了0.2%,达到0.71%,比设计目标低0.09%;吨钢煤耗82.86 m3/t,降低了4.79%,比设计目标低2.14 m3/t。加热炉加热工艺优化后,钢坯氧化烧损率及吨钢煤耗均降低,取得了较好的效果。 展开更多
关键词 步进梁式加热炉 热轧扁钢 经济指标 车间 生产特性 出钢温度 加热时间 炉内气氛
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Preoperative blood oxygen level-dependent functional magnetic resonance imaging in patients with gliomas involving the motor cortical areas 被引量:14
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作者 XIE Jian CHEN Xu-zhu +5 位作者 JIANG Tao LI Shou-wei LI Zi-xiao ZHANG Zhong dai jian-ping WANG Zhong-cheng 《Chinese Medical Journal》 SCIE CAS CSCD 2008年第7期631-635,共5页
Background Blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI) plays an important role in identifying functional cortical areas of the brain, especially in patients with gliomas. This ... Background Blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI) plays an important role in identifying functional cortical areas of the brain, especially in patients with gliomas. This study aimed to assess the value of fMRI in presurgical planning and functional outcome of patients with gliomas in the motor cortical areas. Methods Twenty-six patients with gliomas in the motor cortex were recruited in the study. Before operation, fMRI was performed in each patient to obtain the mapping of bilateral hands area on the primary sensorimotor cortex. This examination was performed on a 3.0T scanner with a bilateral hands movement paradigm. During microsurgery under awake anesthesia, the motor area was identified using direct electrical stimulation and compared with preoperative mapping. Finally the tumor was resected as much as possible with the motor cortex preserved in each patient. Karnofsky performance status (KPS) was evaluated in all patients before and after operation. Results Twenty-three patients showed a successful fMRI mapping. Among them, 19 were calssified to be grade Ⅲ; 4, grade Ⅱ; 3, grade Ⅰ. The operation time was about 7 hours in the 23 patients, 8.5 hours in the other 3. The pre-and postoperative KPS score was 82.3±8.6 and 94.2±8.1, respectively. Conclusions Preoperative fMRI of the hand motor area shows a high consistency with intraoperative cortical electronic stimulation. Combined use of the two methods shows a maximum benefit in surgical treatment. 展开更多
关键词 magnetic resonance imaging functional motor cortex electrical stimulation GLIOMA
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Preoperative 3T high field blood oxygen level dependent functional magnetic resonance imaging for glioma involving sensory cortical areas 被引量:11
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作者 LI Shao-wu WANG Jiang-fei +6 位作者 JIANG Tao LI Shou-wei ZHANG Wen-bo LI Zi-xiao ZHANG Zhong dai jian-ping WANG Zhong-cheng 《Chinese Medical Journal》 SCIE CAS CSCD 2010年第8期1006-1010,共5页
Background Localization of sensory cortical areas during the operation is essential to preserve the sensory function. Intraoperative direct electrostimulation under awake anesthesia is the golden standard but time-con... Background Localization of sensory cortical areas during the operation is essential to preserve the sensory function. Intraoperative direct electrostimulation under awake anesthesia is the golden standard but time-consuming. We applied 3T high field blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI) to identify the relationship between glioma and cortical sensory areas preoperatively and to guide intraoperative direct electrostimulation for quick and precise localization. Methods Five glioma patients with sensory cortex involvement by or next to the lesion had preoperative BOLD fMRI to determine the spatial relationship of cortical sensory areas to the tumours. Bilateral hand opposite movement was performed by these patients for fMRI. Precentral and postcentral gyri were identified by electrical stimulation during the operation. Karnofsky Performance Status scores of the patients' pre- and postoperative and the role of BOLD fMRI were evaluated. Results The cortical sensory areas were all activated in five glioma patients involving postcentral gyrus areas by BOLD fMRI with bilateral hand opposite movement. The detected activation areas corresponded with the results from cortical electrical stimulation. Conclusions The relationship between cortical sensory areas and tumour can be accurately shown by BOLD fMRI before operation. And the information used to make the tumour resection could obtain good clinical results. 展开更多
关键词 functional magnetic resonance imaging somatosensory area awake anesthesia cortical stimulation
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Regional homogeneity analysis on acupoint specificity with resting-state functional magnetic resonance imaging 被引量:11
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作者 REN Xiu-jun CHEN Hong-yan +6 位作者 WANG Bao-guo ZHAO Bai-xiao LI Shao-wu ZHANG Lei dai jian-ping LIU Xiao-yuan LUO Fang 《Chinese Medical Journal》 SCIE CAS CSCD 2012年第9期1627-1632,共6页
Background The mechanism of acupuncture analgesia in craniotomy has been widely studied. However, the theoretical basis for selection of acupoints has not been examined. In this study, we used the regional homogeneit... Background The mechanism of acupuncture analgesia in craniotomy has been widely studied. However, the theoretical basis for selection of acupoints has not been examined. In this study, we used the regional homogeneity method blood oxygen level-dependent (BOLD) signals to determine changes in brain activity in response to transcutaneous electrical stimulation on acupoints and non-acupoints in resting state functional magnetic resonance imaging (fMRI).Methods Twelve healthy volunteers were enrolled in this study. BOLD fMRI scanning of the brain was performed for 306 seconds before and 30 minutes after transcutaneous electrical stimulation on acupoints UB63 (Jinmen), LV3 (Tai chong), ST36 (Zusanli), and GB40 (Qiuxu). The procedure was repeated after one week with stimulation on non-acupoints (one was 9 above BL67, the second was 12 above BL67 (Kunlun), the third was 7 above KI3, and the fourth was 10 above KI3 (Taixi)).Results The regional homogeneity in the acupoint group was increased in the left thalamus, caudate, putamen, lentiform nucleus (BA19, 30, 39), postcentral gyrus, precentral gyrus (BA3, 4, 30, 32), calcarine fissure, middle temporal gyrus (BA30), right superior temporal gyrus, inferior temporal gyrus (BA38), cuneus, and precuneus (BA7, 19) when compared to the non-acupoint group. The regional homogeneity of the acupoint group was decreased in the left cerebellum posterior lobe, middle frontal gyrus (BA10), double-side precuneus (BA7), and the postcentral gyrus (BA40).Conclusions The brain region activated following acupoint stimulation is the ipsilateral pain-related brain region, which may relate to the therapeutic effect of acupuncture on pain relief. Further acupoint stimulation causes different central nervous responses compared to non-acupoint stimulation. 展开更多
关键词 ACUPOINT functional magnetic resonance imaging transcutaneous electric nerve stimulation
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Bunch length measurement using a traveling wave RF deflector 被引量:1
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作者 ZHANG Jing-Ru dai jian-ping +6 位作者 GU Qiang PEI Guo Xi ZHAO Ming-Hua ZHONG Shao-Peng WANG Xing-Tao CHEN Yong-hong HOU Mi 《Chinese Physics C》 SCIE CAS CSCD 2010年第1期138-142,共5页
RF deflectors can be used for bunch length measurement with high resolution. This paper describes a completed S-band traveling wave RF deflector and the bunch length measurement of the electron beam produced by the ph... RF deflectors can be used for bunch length measurement with high resolution. This paper describes a completed S-band traveling wave RF deflector and the bunch length measurement of the electron beam produced by the photocathode RF gun of the Shanghai DUV-FEL facility. This is the first time that such a transverse RF deflector has been developed and used to measure the bunch length of picosecond order in China. The deflector's VSWR is 1.06, the whole attenuation 0.5 dB, and the bandwidth 4.77 MHz for VSWR less than 1.1. With a laser pulse width of 8.5 ps, beam energy of 4.2 MeV, and bunch charge of 0.64 nC, the bunch lengths for different RF input power into the deflector were measured, and an averaged rms bunch length of 5.25 ps was obtained. A YAG crystal is used as a screen downstream of the deflector, with the calibrated value of 1 pix = 136 μm. 展开更多
关键词 RF deflector bunch length RF gun HEM11 mode
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Proton magnetic resonance spectroscopy predicts radiotherapy response and time-to-progression in high-grade gliomas after surgery
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作者 QU Jin-rong JIANG Tao +5 位作者 dai jian-ping LI Hai-liang LUO Jun-peng LI Shao-wu AI Lin JIANG Tian-zi 《Chinese Medical Journal》 SCIE CAS CSCD 2012年第24期4334-4337,共4页
Background Reliable early prediction response to therapy and time-to-progression (TTP) remain an important goal of high-grade gliomas (HGGs) research. Proton magnetic resonance spectroscopy (1H-MRS) has been app... Background Reliable early prediction response to therapy and time-to-progression (TTP) remain an important goal of high-grade gliomas (HGGs) research. Proton magnetic resonance spectroscopy (1H-MRS) has been applied with variable success in clinical application, and we hypothesize that 1H-MRS in predictive value should perform well as a marker of TTP in patients treated with radiotherapy (RT) after surgery. Methods 1H-MRS was performed before surgery on 25 patients who had undergone resection of HGGs; then the ratios of lipid/creatine (Lip/Cr) and myo-inositol/creatine (ml/Cr) were determined in the solid tumor. RT response was classified as follows: complete resolution (CR), partial response (PR), stable disease (SD), and progressive disease (PD) by comparison of pre-treatment and post-radiotherapy scans. TTP was defined at the time to radiographic progression by MacDonald criteria. Correlation was evaluated between the ratios of Lip/Cr, ml/Cr and treatment response, TTP. The chi-square test and Pearson correlation test were used for data analyses. Results Multivariate analysis revealed that the prognostic value of spectroscopic variables was independent of age, sex, WHO histologic grade, extent of surgery, and Karnofsky score (KPS). The correlation between the ratios of lipid/Cr and TTP was significant (r=0.894, P=0.000), and between the ratios of ml/Cr and TTP was also significant (r=0.891, P=-0.000). As predicted, RT response correlated significantly with TTP (r=0.59, P=0.002): median TTP was 49.9 days for patients with PD compared with 202.7 days for SD, 208.0 days for PR, and 234.5 days for CR. Conclusion The ratios of Lip/Cr and ml/Cr of the solid tumor region before surgery could provide important information in predicting RT response and TTP in patients with HGGs treated by radiation alone after surgery. 展开更多
关键词 proton magnetic resonance spectroscopy brain gliomas radiotherapy response time-to-progression
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Disease distribution and medical resources during the Beijing 2008 Olympic and Paralympic Games
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作者 LIANG Xue-ya LAN Ling +4 位作者 CHEN Wei-na ZHANG Ai-ping LU Chao-ying LU Yan-wei dai jian-ping 《Chinese Medical Journal》 SCIE CAS CSCD 2011年第7期1031-1036,共6页
Background Appropriate planning and staffing for medical services at large-scale athletic events is essential to provide for a safe and successful competition. There are few well-documented accounts describing the dem... Background Appropriate planning and staffing for medical services at large-scale athletic events is essential to provide for a safe and successful competition. There are few well-documented accounts describing the demand for such services. The present study provided the data from the Beijing 2008 Olympics and Paralympics, with a view to provide the guidance for planning future events. 展开更多
关键词 Olympic Games ParaIympic Games disease distribution ATHLETES
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Dynamic radiological change of gliomas located in the paralimbic system and its clinical significance
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作者 CHEN Xu-zhu JIANG Tao +2 位作者 LI Shao-wu AI Lin dai jian-ping 《Chinese Medical Journal》 SCIE CAS CSCD 2008年第8期713-715,共3页
Background The paralimbic system, which is composed of three parts, is an important functional unit. Gliomas located in the region remain a challenge for clinical treatment. However, the dynamic change of gliomas in t... Background The paralimbic system, which is composed of three parts, is an important functional unit. Gliomas located in the region remain a challenge for clinical treatment. However, the dynamic change of gliomas in the area has not been well documented. The purpose of this study was to identify the growth tendency of gliomas located in the paralimbic system and to obtain some suggestions for clinical treatment. Methods Eleven cases of gliomas located in the paralimbic system were recruited in the study. All of them were proven by pathology. Analysis of the serial radiological examinations in each patient was performed from the initial to the final examination, taking into consideration the following items: initial tumor location, final location and the growth tendency. Results In the initial and final examinations the ratios of insula involvement were 64% and 100%, respectively. On the other hand, the ratios of gliomas located in two or more parts of paralimbic system increased from 64% to 100% during the dynamic examination. Conclusions Even though the paralimbic system is composed of three independent anatomical parts, gliomas tend to involve all three parts, especially the insula. Therapeutic plans should aim at the whole region of the system, even during the early stages of gliomas. 展开更多
关键词 paralimbic system GLIOMA white matter fiber tracts
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