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大数据背景下永辉超市供应链成本管理研究

中阿科技论坛（中英文） 2024年第3期 89-93页

作者：孙铖铖新疆财经大学新疆乌鲁木齐830012

供应链通过资源整合和流程优化,促进产业跨界和协同发展,有利于加强从生产到消费等各环节的有效对接,降低企业经营和交易成本,促进供需精准匹配和产业转型升级。永辉超市随着规模扩大和供应链模式的转变,组织架构及各运营环节都变得愈... 详细信息

供应链通过资源整合和流程优化,促进产业跨界和协同发展,有利于加强从生产到消费等各环节的有效对接,降低企业经营和交易成本,促进供需精准匹配和产业转型升级。永辉超市随着规模扩大和供应链模式的转变,组织架构及各运营环节都变得愈加复杂,其供应链成本管理也面临着诸多挑战。在大数据背景下,针对永辉超市供应链所面临的成本问题,能够帮助企业提出切实可行的解决方案。文章通过对永辉超市供应链成本的分析,认为企业能够对供应链的成本进行合理控制,进而促进企业的健康发展。

关键词：大数据供应链永辉超市成本管理

精氨酸与可乐定生长激素激发试验在矮小症儿童中的应用比较

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生命科学仪器 2024年第2期22卷 159-161页

作者：孙程程张宇温州市人民医院浙江温州325000

目的分析比较精氨酸与可乐定生长激素(GH)激发试验在儿童矮小症中的临床应用价值。方法回顾性分析温州市人民医院2018年6月至2021年6月住院诊断为矮小症的162例患儿的临床资料,给予精氨酸、可乐定激发试验,比较分析试验0 min、30 min、6... 详细信息

目的分析比较精氨酸与可乐定生长激素(GH)激发试验在儿童矮小症中的临床应用价值。方法回顾性分析温州市人民医院2018年6月至2021年6月住院诊断为矮小症的162例患儿的临床资料,给予精氨酸、可乐定激发试验,比较分析试验0 min、30 min、60 min、90 min生长激素值。结果162例患儿中,14例(8.64%)患儿表现为GH完全缺乏,58例(35.80%)患儿表现为GH部分缺乏。采用可乐定激发试验的阳性率为48.15%(78例),高于采用精氨酸激发试验的阳性率21.60%(35例),差异具有统计学意义(P0.05)。可乐定峰值时间主要集中于60 min,达60.49%;精氨酸峰值时间分别集中于30 min,60 min,分别达到40.1%、32.1%。结论精氨酸联合可乐定激发试验可作为儿童GH缺乏的诊断性试验。可乐定激发试验的阳性率高于精氨酸试验结果,两种药物联合诊断的价值要优于单种药物。

关键词：矮小症激发试验可乐定精氨酸

中大口径加榴炮发射环境极限边界工况炮-弹-引耦合响应特性

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探测与控制学报 2024年第1期46卷 33-39页

作者：田中旺牛兰杰宁变芳马红萍孙诚诚机电动态控制重点实验室陕西西安710065 西北机电工程研究所陕西咸阳712099

针对中大口径加榴炮机械触发引信早炸时有发生,引信及其典型结构在内弹道高动态复杂力学环境下的响应特性不清晰、失效机理不明确等问题,建立了考虑身管中后期磨损、底排弹0号装药、弹丸最大装填角、弹丸与引信极限偏差等极限边界工况... 详细信息

针对中大口径加榴炮机械触发引信早炸时有发生,引信及其典型结构在内弹道高动态复杂力学环境下的响应特性不清晰、失效机理不明确等问题,建立了考虑身管中后期磨损、底排弹0号装药、弹丸最大装填角、弹丸与引信极限偏差等极限边界工况的内弹道环境炮弹引耦合动力学仿真模型。采用融合SPH和Lagrange的有限元计算方法,分析弹引典型机构响应特性,并通过底凹弹和底排弹典型工况测试数据对仿真模型的预测误差进行验证。结果表明,极限边界工况会对弹丸挤进阻力、前定心部与身管撞击力的时域分布特征以及运动姿态等造成显著影响,会对引信及其典型机构过载响应造成较大影响。相比底凹弹和底排弹常规工况,膛内弹丸与身管撞击力分别增大63.75倍和29.82倍,出炮口瞬间弹丸俯仰角分别增大8.69倍和6.71倍,偏航角分别增大3.89倍和1.75倍,膛内引信回转体轴轴向峰值过载分别增大19.49%和5.44%,径向峰值过载分别增大78.7%和1.44倍。极限边界工况下,膛内阶段引信发生强度失效的风险明显增大,出炮口后弹引初始章动角量值明显增加,飞行阶段异常作用的风险也会增大。相关研究对于探寻复杂动态力学环境中大口径机械触发引信失效机理,指导引信加固优化设计具有重要意义。

关键词：中大口径加榴炮底排弹机械触发引信发射环境极限边界工况耦合响应特性

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生长素对百合呈色合成调控的研究

赣南师范大学学报 2024年第3期45卷 56-60页

作者：孙程程徐华李晓辉曹雨薇赣南师范大学生命科学学院江西赣州341000 赣南师范大学赣州市南岭植物资源保护与利用重点实验室江西赣州341000 赣南师范大学信息与教育技术中心江西赣州341000

生长素作为植物生长调节激素,具有参与花色合成的功能.本研究通过对百合鳞片喷施不同浓度生长素及其抑制剂,发现抑制剂处理后提前呈色,而200 mg/L IAA处理花青素苷含量最高,300 mg/L IAA花青素苷含量最低.并利用实时荧光定量技术(Real-t... 详细信息

生长素作为植物生长调节激素,具有参与花色合成的功能.本研究通过对百合鳞片喷施不同浓度生长素及其抑制剂,发现抑制剂处理后提前呈色,而200 mg/L IAA处理花青素苷含量最高,300 mg/L IAA花青素苷含量最低.并利用实时荧光定量技术(Real-time quantitative PCR,RT-qPCR)对花青素苷合成和调控相关基因的表达进行检测,发现抑制剂NPA和TIBA处理后相关基因的表达均表现为显著上调.通过对生长素调控百合鳞片花青素苷合成的研究,初步探究生长素对百合呈色合成的调控作用,以期丰富激素对单子叶植物百合的呈色调控网络.

关键词：龙牙百合生长素花青素苷转录调控

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Environmental dynamics of nitrogen and phosphorus release from river sediments of arid areas

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Journal of Arid Land 2024年第5期16卷 685-698页

作者： SU Wenhao WU chengcheng sun Xuanxuan LEI Rongrong LEI Li WANG Ling ZHU Xinping College of Bioscience and Resources Environment Beijing University of AgricultureBeijing 102206China Xinjiang Tianxi Environmental Protection Technology Co.Ltd. Urumqi 830000China College of Resources and Environment Sciences Xinjiang Agricultural UniversityUrumqi 830052China

Human activities lead to the accumulation of a large amount of nitrogen and phosphorus in sediments in ***,nitrogen and phosphorus can be affected by environment and re-enter the upper water body,causing secondary pollution of the river *** this study,laboratory simulation experiments were conducted initially to investigate the release of nitrogen and phosphorus from river sediments in Urumqi City and the surrounding areas in Xinjiang Uygur Autonomous Region of China and determine the factors that influence their *** results of this study showed significant short-term differences in nitrogen and phosphorus release characteristics from sediments at different sampling *** proposed secondary kinetics model(i.e.,pseudo-second-order kinetics model)better fitted the release process of sediment nitrogen and *** release of nitrogen and phosphorus from sediments is a complex process driven by multiple factors,therefore,we tested the influence of three factors(pH,temperature,and disturbance intensity)on the release of nitrogen and phosphorus from sediments in this *** most amount of nitrate nitrogen(NO_(3)^(–)-N)was released under neutral conditions,while the most significant release of ammonia nitrogen(NH_(4)^(+)-N)occurred under acidic and alkaline *** release of nitrite nitrogen(NO_(2)^(-)-N)was less affected by *** dissolved total phosphorus(DTP)released significantly in the alkaline water environment,while the release of dissolved organic phosphorus(DOP)was more significant in acidic *** release amount of soluble reactive phosphorus(SRP)increased with an increase in *** sediments released nitrogen and phosphorus at higher temperatures,particularly NH_(4)^(+)-N,NO_(3)^(–)-N,and *** highest amount of DOP was released at 15.0℃.An increase in disturbance intensity exacerbated the release of nitrogen and phosphorus from ***_(4)^(+)-N,DTP,and SRP levels increased linearly with the intens

关键词： sediment nitrogen and phosphorus environmental dynamics pseudo-second-order kinetics model dissolved organic phosphorus(DOP) Urumqi City

Tailored amorphous titanium oxide and carbon composites for enhanced pseudocapacitive sodium storage

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Journal of Energy Chemistry 2022年第2期31卷 127-132页

作者： Meng Shao chengcheng sun Tianming Chen Ningxiang Wu Runan Zhang Xu Han Yu Shen Peng Wu Wei-Wei Xiong Weina Zhang Sheng Li Fengwei Huo Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)Nanjing 211800JiangsuChina

As an effective and competitive supplement to the commercialized lithium ion batteries(LIBs),sodium ion batteries(SIBs)have been receiving increasing attention in recent years due to lower cost,richer content,and broader distribution of sodium[1–7].Sodium has similar electrochemical properties to lithium,and thus the concepts for the preparation of electrode materials for SIBs can be borrowed from LIBs[8,9].

关键词： Unsaturated sites Amorphous Fast ion storage Na^(+)storage mechanism Pseudocapacitance

Analysis of blocking slurry diffusion parameters for a new self-starting drainage anchor cable

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Journal of Earth Science 2024年

作者： WANG Xu GE Qi Lü chengcheng SHU Junwei sun Hongyue Sino-Italy Ningbo Ecological Park Holding Group Co. Ltd Ocean College Zhejiang University College of Civil Engineering and Architecture Zhejiang University School of Civil Engineering Nanjing Forestry University

A new self-starting drainage anchor that combines prestressed anchor cables with self-starting drainage is proposed. The novelty of the self-starting drainage method is the realization of the drainage and anchoring in the one inclined borehole. Reduction in the number of boreholes can greatly decrease the construction cost and duration of the project. The adverse effect of drilling construction disturbance on the slope is reduced. To tackle the possible blockage of the drainage cavity due to slurry leakage during the solidification process after finishing grouting in the blocking section. To this end， a theoretical equation for the slurry diffusion radius under slurry self-weight pressure boundary conditions is deduced. The result is verified for precision through comparison with numerical simulation. The findings reveal that the permeability coefficient of rock and soil mass makes the most significant impact on the slurry diffusion radius， succeeded by the length of the grouting blocking section， slurry initial setting time， and drilling inclination in descending order of influence. With the 5% mass ratio of a "711" type slurry quick-setting agent， the maximum slurry diffusion radius can be reduced from 0.925m to 0.449m， a reduction of 0.476m， which is comparatively more recommended.

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Effect of Atmospheric Pressure Plasma Treatment on the Lap-Shear Strength of Adhesive-Bonded Sheet Molding Compound Joints

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Automotive Innovation 2018年第3期1卷 237-246页

作者： Shuang Wang Junying Min Jianping Lin chengcheng sun Shanglu Yang School of Mechanical Engineering Tongji UniversityShanghai 201804China Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems of Shanghai Tongji UniversityShanghai 201804China Shanghai Institute of Optics and Fine Mechanics Shanghai 201800China

Atmospheric pressure plasma treatment(APPT)technology was used herein to treat sheet molding compound(SMC)substrates to increase the lap-shear strength of ***,the mechanisms behind the lap-shear strength improvements in APPT-treated adhesive-bonded SMC joints were explored.A maximum lap-shear strength about three times that of the as-received SMC joints was achieved when the APPT distance was set to 20 *** surface roughness,which exhibited little benefit to the lap-shear strength,was determined to not be the primary reason for the increase in lap-shear ***,X-ray photoelectron spectra revealed that an increased amount of O-containing groups(i.e.,C–O–H,C–O–C,H–O–C=O or R–O–C=O)following APPT contributed to the improved lap-shear *** addition,the surface free energy increased significantly after APPT,which improved the lap-shear strength of the adhesive-bonded SMC *** to the change of surface morphology,the changes in both the surface chemical property and surface free energy played larger roles in increasing the lap-shear strength of APPT-treated SMC joints.

关键词： Plasma treatment Sheet molding compound Lap-shear strength Chemical properties Surface free energies

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网络安全治理对策研究

信息网络安全 2023年第6期23卷 104-110页

作者：孙珵珵中国政法大学国际法学院北京102249

为深入贯彻国家网络安全法,破解新形势下网络安全治理在技术和管理上面临的诸多痛点和难题,文章以网络安全法为基本遵循,研究探讨了依法持续推进网络安全治理向纵深发展的问题,提出要确立基于网络安全逻辑的治理取向,在保安全与促发展... 详细信息

为深入贯彻国家网络安全法,破解新形势下网络安全治理在技术和管理上面临的诸多痛点和难题,文章以网络安全法为基本遵循,研究探讨了依法持续推进网络安全治理向纵深发展的问题,提出要确立基于网络安全逻辑的治理取向,在保安全与促发展中实现平衡共进,突出数据这一关键要素的安全治理,建立敏捷高效的风险评估方法策略,旨在以多措并举的综合治理筑起坚固的网络安全屏障,创建绿色可持续的网络生态。

关键词：网络安全法网络安全治理网络安全逻辑特征