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高校技术合同管理实践与思考

纺织科技进展 2024年第7期46卷 32-34,41页

作者：霍倩界璐张玮西安工程大学科技研究院西安710048

为讨论高校技术合同管理中存在的问题及应对策略,明确技术合同的类型及技术开发、技术转让、技术许可、技术咨询、技术服务5大类技术合同的基本概念。以某纺织类院校为例,阐述目前高校技术合同管理中存在制度不健全、管理不规范等普遍问... 详细信息

为讨论高校技术合同管理中存在的问题及应对策略,明确技术合同的类型及技术开发、技术转让、技术许可、技术咨询、技术服务5大类技术合同的基本概念。以某纺织类院校为例,阐述目前高校技术合同管理中存在制度不健全、管理不规范等普遍问题;从制度建设、人员素质提升、信息化建设、风险防控、法律风险防范等方面给出建议和意见。结果表明,高校应进一步加强技术合同管理的重视程度,完善管理流程,提升管理人员的专业素养,以推动高校科技创新和技术转移工作的健康发展。

关键词：高校技术合同规范管理

维普期刊数据库博看期刊

Study on the association of multimorbidity with sleep and diet in young and middle-aged adults in Chongqing region,China

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Medical Data mining 2024年第4期7卷 50-55页

作者： Mei Zhao Hai-Hang Qin Rong Sun Jing Zhang Xue-Qin Yan wei-wei Liu School of Public Health Chongqing Medical UniversityResearch Center for Medicine and Social DevelopmentResearch Center for Public Health SecurityChongqing 401331China Health Management Center The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China School of General Education Chongqing College of Traditional Chinese MedicineChongqing 402760China

Background:The prevalence of multimorbidity is increasing,with a notable shift towards younger age ***:Convenience sampling was employed to select 15,988 young and middle-aged adults in Chongqing as the study *** Apriori algorithm was used to identify the multimorbidity patterns within this population,while an unordered binary logistic regression model was applied to assess the association between sleep,diet and the risk of ***:The study population had an average age of 39.2±10.1 *** association rules revealed that the most prevalent binary chronic disease multimorbidity pattern was dyslipidaemia+hypertension(14.78%),while the most common ternary chronic disease multimorbidity pattern was diabetes+dyslipidaemia+hypertension(9.66%).The logistic regression analysis revealed that a lower rating of sleep quality was associated with an elevated risk of multimorbidity(odds ratio(OR)=1.17,95%confidence interval(CI):1.01,1.36).Individuals who adhere to a meat-based diet(OR=1.45,95%CI:1.25,1.68)and those with elevated salt intake(OR=1.22,95%CI:1.01,1.47)were also observed to have an increased risk of ***,a greater likelihood of multimorbidity was observed among those following a spicy diet(OR=1.3,95%CI:1.11,1.52)and consuming more oil(OR=1.16,95%CI:1.01,1.33).Conclusion:A poor sleep quality and a dietary preference for meat-based,salt,spicy and oils were found to be associated with an increased risk of multimorbidity progression among young and middle-aged *** is recommended that young and middle-aged adults should pay attention not only to sleep duration but also to sleep quality and improve dietary habits to reduce the likelihood of multimorbidity.

关键词： young and middle-aged adults sleep diet multimorbidity

巴州地区库尔勒香梨产业现状、问题及持续发展对策

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果树资源学报 2024年第5期5卷 108-112页

作者：位杰谢宏江蒋媛新疆生产建设兵团第二师农业科学研究所新疆铁门关841005

库尔勒香梨是新疆的特色果树,分析了巴州地区近年来香梨产业的栽培规模、栽培模式、品种培育、全产业链发展、品牌建设、销售价格和政策法规支持情况,并围绕自然灾害频发、水肥一体化程度低、生产成本不断增加、标准化管理水平低、种苗... 详细信息

库尔勒香梨是新疆的特色果树,分析了巴州地区近年来香梨产业的栽培规模、栽培模式、品种培育、全产业链发展、品牌建设、销售价格和政策法规支持情况,并围绕自然灾害频发、水肥一体化程度低、生产成本不断增加、标准化管理水平低、种苗繁育体系不健全、采后商品化和精深加工环节薄弱等目前香梨产业发展存在的问题,提出了科学规划香梨产业布局、推进香梨产业标准化生产、持续深入实施香梨产业提质增效、强化科技支撑保障能力、加快先进实用技术推广、持续深化品牌建设、加快促进延链增值持续发展的对策和建议,以期为库尔勒香梨产业提档升级、高质高效发展提供参考。

关键词：巴州地区库尔勒香梨产业现状问题发展对策

A hybrid machine learning optimization algorithm for multivariable pore pressure prediction

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Petroleum Science 2024年第1期21卷 535-550页

作者： Song Deng Hao-Yu Pan Hai-Ge Wang Shou-Kun Xu Xiao-Peng Yan Chao-wei Li ming-Guo Peng Hao-Ping Peng Lin Shi Meng Cui Fei Zhao School of Petroleum and Natural Gas Engineering Changzhou UniversityChangzhou213164JiangsuChina Tubular Goods Research Institute of CNPC Beijing102249China CNPC Engineering Technology R&D Company Limited Beijing102206China

Pore pressure is essential data in drilling design,and its accurate prediction is necessary to ensure drilling safety and improve drilling *** methods for predicting pore pressure are limited when forming particular structures and *** this paper,a machine learning algorithm and effective stress theorem are used to establish the transformation model between rock physical parameters and pore *** study collects data from three *** 1 had 881 data sets for model training,and Wells 2 and 3 had 538 and 464 data sets for model *** this paper,support vector machine(SVM),random forest(RF),extreme gradient boosting(XGB),and multilayer perceptron(MLP)are selected as the machine learning algorithms for pore pressure *** addition,this paper uses the grey wolf optimization(GWO)algorithm,particle swarm optimization(PSO)algorithm,sparrow search algorithm(SSA),and bat algorithm(BA)to establish a hybrid machine learning optimization algorithm,and proposes an improved grey wolf optimization(IGWO)*** IGWO-MLP model obtained the minimum root mean square error(RMSE)by using the 5-fold cross-validation method for the training *** the pore pressure data in Well 2 and Well 3,the coefficients of determination(R^(2))of SVM,RF,XGB,and MLP are 0.9930 and 0.9446,0.9943 and 0.9472,0.9945 and 0.9488,0.9949 and *** achieves optimal performance on both training and test data,and the MLP model shows a high degree of *** indicates that the IGWO-MLP is an excellent predictor of pore pressure and can be used to predict pore pressure.

关键词： Pore pressure Grey wolf optimization Multilayer perceptron Effective stress Machine learning

Simultaneously Improved Curing,Mechanical,Antioxidative Properties and Reduced ZnO Loading of Silica Filled NR Composites by Incorporation of Low-cost Crude Carbon Dots via Conventional Melt-milling Method

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Chinese Journal of Polymer Science 2024年第6期42卷 815-825页

作者： Chao-Ying Sun Hai-Jun Ji Li-wei Li Hui Yang Xiao-Peng An Yi-Ping Chen ming-Jian Han Can Jiang Li-Qun Zhang Peng Yu Run-Guo Wang State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing100029China School of Materials Science and Engineering Wuhan Institute of TechnologyWuhan430205China

Rubbers or elastomers play an important role in hi-tech technology and civilian daily life because of their unique and strategical ***,the rubber additives are essential components for rubbers’practical ***,developing novel multifunctional additives has attracted increasing research *** this work,low-cost crude carbon dots(CCDs)were used as multifunctional additives for natural rubber/silica system(without any additional modification)through industrial compatible melt-mixing *** results revealed that the CCDs could disperse well in the NR/silica system,and they could not only endow the rubber compound with excellent anti-aging capability due to CCDs’radical scavenging activity because of their plenty of nitrogen-containing species,but also improve the curing rate and mechanical performance of the rubber ***,the CCDs could reduce the rolling resistance of the rubber composites(tanδvalue at 7%strain of the rubber composite could be decreased by 34%),which is promising for the application of energy-saving tire ***,the addition of CCDs could effectively reduce the ZnO dosage by at least 40%in the rubber composite without deteriorating its ***,this work provides valuable guidance to develop novel cheap yet effective additives for the elastomer.

关键词： Natural rubber Crude carbon dots Antioxidant ZnO reduction Vulcanization

Microstructure evolution and formation mechanism of laser-ignited SHS joining between Cf/Al composites and TiAl alloys with Ni-Al-Ti interlayer

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Rare Metals 2017年第9期36卷 746-752页

作者： Guang-jie Feng Zhuo-Ran Li Shi-Cheng Feng wei-jie Zhang State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001China

In this study, Cf/Al composites and TiAl alloys were joined by a new method named laser-ignited selfpropagating synthesis（SHS）. Mixed powders of 63.0Ni-31.9Al-5.1Ti（wt%） were used as joining *** joint was got. The microstructure evolution and formation mechanism of the SHS joint were investigated by scanning electron microscopy（SEM）, energy-dispersive spectroscopy（EDS） and X-ray diffraction（XRD）. Results show that localized melting occurs on both sides. One γ-Ni（0.35）Al（0.30）Ti（0.35） and two Ni-Al reaction layers form,respectively, in the TiAl/interlayer and Cf/Al/interlayer interfaces. The combustion of Ni-Al-Ti interlayer begins with the sharp reaction of Ni and Al. The interlayer product is a eutectic organization of NiAl and Al-rich γ.

关键词： SHS Joining Microstructure Formationmechanism Ni-Al-Ti interlayer

机器学习驱动的辉光放电等离子体降解碱性紫16性能研究

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中国环境科学 2024年第6期44卷 3206-3216页

作者：方野王玉如曾静懿王亚欣郑伟李敏睿陕西师范大学地理科学与旅游学院陕西西安710119 陕西师范大学地理学国家级实验教学示范中心陕西西安710119

为了量化研究辉光放电等离子体(GDEP)降解碱性紫16(BV16)的效率影响因素以进一步提升其降解性能,共收集462条降解实验数据建立数据集,训练并评价了9种回归模型.结果表明,基于梯度提升树(GBDT)的集成学习模型预测性能优异,且以类别型特... 详细信息

为了量化研究辉光放电等离子体(GDEP)降解碱性紫16(BV16)的效率影响因素以进一步提升其降解性能,共收集462条降解实验数据建立数据集,训练并评价了9种回归模型.结果表明,基于梯度提升树(GBDT)的集成学习模型预测性能优异,且以类别型特征提升(CatBoost)算法训练的模型性能最佳(R^(2)=0.988,MAE=2.050%).此外,沙普利加和解释方法(SHAP)对最佳模型的参数影响程度定量解析结果显示,反应时间(43.74%)、初始污染物浓度(23.00%)、氯化钾浓度(15.65%)和平均电流(12.63%)是影响BV16降解效率的关键因素.同时,基于部分依赖图(PDP)提出了参数交互影响优化方案.所建立的CatBoost-SHAP-PDP模型不仅能实现GDEP对BV16降解效果的模拟预测,而且是优化GDEP降解过程变量的有效方法,为GDEP降解染料废水复杂体系领域的建模与应用提供科学依据和技术支持.

关键词：辉光放电等离子体染料废水 SHAP解释方法机器学习

Cassiterite U-Pb dating of the Yelonggou pegmatite-type lithium deposit in western Sichuan and its metallogenic age constraints

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China Geology 2024年第1期7卷 153-156页

作者： Xiang-yuan Yue Qian Zhang Jun-jun Zhang wei Zhang Jing Zhang Zhi-quan Jia Li-ping Luo Institute of Multipurpose Utilization of mineral Resources Chinese Academy of Geological SciencesChengdu610041China Shandong Lunan Geology and Exploration Institute(No.2 Brigade of Shandong BGMR) Jining272100China Sichuan Shudao Advanced Material Science Group Co.Ltd. Chengdu610041China No.3 Geological Brigade of Sichuan Province Chongzhou611230China

*** Pegmatite hosts important resource of rare metals,e.g.,lithium(Li)and beryllium(Be).In recent years,increasingly more studies were dedicated to characterize and unravel the formation of pegmatite-type deposits,for which accurate dating of pegmatite formation and mineralization is *** Songpan-Ganzi orogenic belt is a major rare metal metallogenic belt in China,hosting many important pegmatite-type Li deposits,including the Lijiagou,Dangba,Jiajika,Yelonggou,Cuola,and *** age data(mica Ar-Ar and zircon/cassiterite U-Pb)from these Li deposits are sparse,ranging from 210 to 152 ***,obtaining reliable zircon U-Pb dates can be a challenge due to the strong decidualization in *** a result,the formation and mineralization ages of these rare metal pegmatites remain controversial,which hampers the development of pegmatite-type metallogenic model for the Songpan-Ganzi orogenic belt.

关键词： dating metallogenic zircon

针对大噪声的三维SLAM位姿图鲁棒优化算法

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控制工程 2024年第7期31卷 1305-1313页

作者：王苗苗魏国亮蔡洁李雨洁上海理工大学理学院上海200093 上海理工大学管理学院上海200093

位姿图优化(pose graph optimization,PGO)是同时定位与建图(simultaneous locali-zation and mapping,SLAM)中非常重要的非凸高维优化工具。运动位姿初始化是PGO过程中的关键步骤。针对目前的初始化算法无法为大噪声PGO数据集提供较好... 详细信息

位姿图优化(pose graph optimization,PGO)是同时定位与建图(simultaneous locali-zation and mapping,SLAM)中非常重要的非凸高维优化工具。运动位姿初始化是PGO过程中的关键步骤。针对目前的初始化算法无法为大噪声PGO数据集提供较好初始值的问题,首先提出一种新的鲁棒核函数,解决大噪声带来的估计值与观测值之间的大残差问题;然后,提出一种基于迭代重加权最小二乘的位姿图鲁棒优化算法。蒙特卡罗实验结果表明,所提算法在大噪声环境中具有较好的鲁棒性和精确性,所提鲁棒核函数与其他经典核函数相比更具适用性,能够加快算法收敛。

关键词：三维SLAM PGO 鲁棒核函数迭代重加权最小二乘