摘要：^(99)Tc is a long-lived radionuclide present in large amounts as TcO_(4)^(-)-anion in used nuclear *** removal from the waste stream is highly desirable because of its interference capability with actinide separation and its volatile nature during the nuclear waste vitrification *** the progress achieved in the past few years,the design of anion-exchange materials with optimized Tc uptake property and improved stability under the extreme condition is still a research goal beneficial for reducing the volume of secondary radioactive solid waste generated during the waste partitioning ***,their design philosophy remains elusive,with challenges coming from charge repulsion,steric hindrance,and insufficient reactive sites within the ***,we present a design philosophy of cationic polymer network materials for TcO_(4)^(-)separation by systematic precursor screening and structure *** affords an optimized material,SCU-CPN-2(SCU=Soochow University),with extremely high positive charge density while maintaining high radiation ***-CPN-2 exhibits a record high adsorption capacity1,467 mg/g towards the surrogate ReO_(4)^(-)compared to all anion-exchange materials reported up to *** addition to ultrafast adsorption kinetics,SCU-CPN-2 has remarkable selectivity over nitrate and sulfate,and facile recyclability.

摘要：Ice causes impact damage to different positions of the compressor blade,destroys the structural integrity of the rotor structure,and then causes unbalanced failure and even causes nonlinear vibration accidents such as collision and friction,which affects the execution of helicopter *** investigate the influence of impact position on the damage form and dynamic response of blades during ice impact,a dynamic model by finite element-smooth particle fluid dynamic coupling method is *** ice impact damage experiment of the TC4 plate based on the air gun experimental platform was carried out to verify the reliability of the simulation *** damage of compressor blades impacted by ice from different positions under static and design speed of 45000 r/min is *** research results indicate that under static conditions,the damage caused by ice impact from the leading edge blade tip to the leading edge blade root first increases and then decreases,with the maximum damage occurring at the 66.7%blade height position on the leading *** the design speed,the closer the impact locations are to the leaf tip,the greater the damage is,and the plastic damage,equivalent stress,and kinetic energy loss of the ice impact are lower than the blade static *** research conclusion can provide theoretical reference and data support for the design of structural strength and protection of compressor blades in turboshaft engines.

摘要：依据中国特色高水平高职学校和专业建设要求,基于三全育人教学理念,以“生命科学发展进程、科学家事迹、生态文明、疫情防控”为思政载体,应用案例教学、任务驱动教学、自助套餐教学、自由演讲等多形式融合教学模式,针对柳州职业技术学院环境类和食品类专业特点,对仪器分析课程精准教学进行了探究实践,侧重于学生科学素养、诚信意识、家国情怀和工匠精神的培养。

摘要：This paper focuses on a pattern design method for a 3D triangular garment surface. Firstly, some definitions of 3D style lines are proposed for designing the boundaries of patterns as drawing straight lines or splines on the triangular surface. Additionally some commonly used style lines are automatically generated to enhance design efficiency. Secondly, after style lines are preprocessed, a searching method is presented for quickly obtaining the boundaries and patches of a pattern on the 3D trian- gular surface. Finally a new pattern design reuse method is introduced by encoding/decoding the style line information. After style lines are encoded, the pattern design information can be saved in a pattern template and when decoding this template on a new garment surface, it automates the pattern generation for made-to-measure apparel products.

摘要：Angiokinases, such as vascular endothelial-, fibroblast-and platelet-derived growth factor receptors(VEGFRs, FGFRs and PDGFRs) play crucial roles in tumor angiogenesis. Anti-angiogenesis therapy using multi-angiokinase inhibitor has achieved great success in recent years. In this study, we presented the design, synthesis, target identification, molecular mechanism, pharmacodynamics(PD)and pharmacokinetics(PK) research of a novel triple-angiokinase inhibitor WXFL-152. WXFL-152,identified from a series of 4-oxyquinoline derivatives based on a structureeactivity relationship study,inhibited the proliferation of vascular endothelial cells(ECs) and pericytes by blocking the angiokinase signals VEGF/VEGFR2, FGF/FGFRs and PDGF/PDGFRβ simultaneously in vitro. Significant anticancer effects of WXFL-152 were confirmed in multiple preclinical tumor xenograft models, including a patientderived tumor xenograft(PDX) model. Pharmacokinetic studies of WXFL-152 demonstrated high favourable bioavailability with single-dose and continuous multi-dose by oral administration in rats and *** conclusion, WXFL-152, which is currently in phase Ib clinical trials, is a novel and effective tripleangiokinase inhibitor with clear PD and PK in tumor therapy.

摘要：针对于某型液压挖掘机下坡时存在遛坡问题,发现低速挡和高速挡行走时,行走液压马达均存在吸空现象。通过对液压系统压力曲线进行采集分析,结合现场故障现象,确认故障原因为行走马达平衡阀节流阀阻尼设计不合理。通过更换行走马达平衡阀阻尼、主阀先导油口增加单向节流阀排除故障,为同类产品新产品开发与市场故障提供了参考,能够极大提升工作效率和质量。

摘要：随着新能源与节能汽车产业发展规划的发布以及汽车新四化的提出,社会对高校车辆工程专业提出了培养应用创新型人才的新要求。对车辆工程专业学生利用所承担的纵横向项目进行科研反哺教学的探索。从课堂教学、课程实验、创新创业项目、科创竞赛、专业实习、课程设计和毕业设计环节入手,开展科研反哺教学在车辆工程专业的实践验证。教学实践表明,科研反哺教学能切实提升车辆工程专业学生的实践创新能力和综合素养,为改革工科类专业人才培养模式提供了现实依据。

摘要：Incorporating controlled elitism and dynamic distance crowding strategies, a modified NSGA-II algorithm based on a fast and genetic non-dominated sorting algorithm is developed with the aim of obtaining a novel multi-objective optimization design algorithm for wind turbine blades. As an example, a high-performance 1.5 MW wind turbine blade, taking maximum annual energy production and minimum blade mass as the optimization objectives, was designed. A 1/16-scale model of this blade was tested in a 12 m × 16 m wind tunnel and the experimental results validated the high performance. Moreover, both the computational fluid dynamics (CFD) method and a free-vortex method (FVM) were applied to calculating the aerodynamic performance, which was consistent with the experimental data. For completeness, the CFD and FVM were used to analyze the wake structure, and good and consistent results were obtained between them.

摘要：为探讨加气灌溉及秸秆还田对水稻泡田期水质的影响,于2021年在江苏省南京市开展土箱模拟试验,研究CK秸秆不还田+常规水灌溉(常规水DO 2.85 mg/L)、ST秸秆还田+常规水灌溉(小麦秸秆风干、粉碎至3~5 cm,常规水DO 2.85 mg/L)和SO秸秆还田+微纳米加气灌溉(小麦秸秆风干、粉碎至3~5 cm,微纳米气泡水DO 8.04 mg/L)对水稻泡田期田面水、不同土层土壤溶液和渗漏水水质的影响,对TN、TP和COD 3类水质指标在泡田期内的变化情况进行监测分析。结果表明:秸秆还田会导致水稻泡田期田面水、各层土壤溶液以及渗漏水的TN、TP和COD浓度增加,且对水稻泡田初期田面水及浅层土壤溶液的水质影响较为严重,泡田期内秸秆还田会导致田面水的TN、TP和COD浓度峰值分别增加27.67%、27.27%和56.11%,0~10 cm土壤溶液的TN、TP峰值分别增加28.95%、57.34%,秸秆还田后0~10 cm土壤溶液COD平均浓度增加43.44%。微纳米加气灌溉可有效降低秸秆还田后泡田期内稻田水体中TN、TP及COD浓度,微纳米加气灌溉使秸秆还田后的田面水的TN、TP和COD浓度峰值分别减少10.65%、16.67%和15.69%,使泡田期内田面水TN、TP和COD平均浓度分别减少10.97%、5.88%和5.73%。研究表明,秸秆还田后会导致水稻泡田期田面水、各层土壤溶液以及渗漏水的TN、TP及COD浓度升高,秸秆还田后采用微纳米加气灌溉可以降低稻田水体中TN、TP及COD浓度。试验可以实现减轻秸秆还田导致的稻田水质污染的目的,同时可为控制稻田污染物扩散以及减少氮磷流失方面提供一定的理论依据。

摘要：为明确亚高山草甸不同深度根土复合体的力学特性对机械化草甸取草的意义,以云南寻甸高本山区亚高山草甸作为研究对象,通过对不同深度的亚高山草甸根土复合体进行直接剪切试验来测定其抗剪强度,并对抗剪强度特性采用摩尔—库伦模型进行拟合分析。结果表明:随着亚高山草甸深度的增加,其抗剪强度逐渐减小,0~10 cm土层深度根土复合体的抗剪强度最大,20~30 cm土层深度根土复合体抗的剪强度最小;采用摩尔—库伦模型对根土复合体抗剪特性参数的模拟效果较为明显,内摩擦角在一定范围内基本保持恒定,但内聚力值的变化较为明显,说明内摩擦角对抗剪强度的影响较小,而内聚力对抗剪强度的影响较为显著。研究结果可为亚高山草甸植被起草设备的设计提供参考。