一种基于实时几何测距的船桥主动防撞方法

本文提出一种基于实时几何测距的船桥主动防撞方法。该方法对船的改动量甚微,仅需维持多项距离矩阵,通过告警逻辑矩阵进行展示与告警,能起到很好的船桥防撞提示效果。     

东海西湖凹陷探井井身结构设计方法研究

东海西湖凹陷探井井身结构在使用的过程中，出现了很多由于井身结构设计不合适而导致的复杂情况，多是由于不能有效地分隔下部出现的异常压力地层，导致在下部井段作业时压漏上部地层。为了解决这一问题，针对东海西湖凹陷井身结构设计难点，从设计方式的角度进行了优化。采用新的设计方式能在封固好分布复杂的地层压力的同时，还最大限度地保证套管直径够大，以满足后续作业要求。     

Engineering 2D Arsenic-Phosphorus Theranostic Nanosheets

As an anticancer drugs, arsenic trioxide (ATO) has been certified to efficiently treat refractory acute promyelocytic leukemia (APL). Unfortunately it suffers from limited therapeutic potency for solid tumors due to its in vivo restricted administration dose and rapid renal clearance. Herein, distinct 2D arsenic-phosphorus (AsP) nanosheets are engineered by adopting an alloy strategy followed by exfoliation, which can confine toxic arsenic into AsP crystals, thus significantly improving the biosafety and biocompatibility of arsenic-based chemotherapeutic drugs. Of particular note, the high light absorption and strong photothermal-conversion efficiency (37.6%) in the second near infrared biowindow (NIR-II) of AsP nanosheets not only endow them with desirable contrast-enhanced photoacoustic imaging properties, but also achieve efficient local tumor hyperthermia, which further synergistically triggers the in-situ transformation from low toxic/nontoxic AsP crystals into highly toxic arsenic species, exerting a strong arsenic-mediated antineoplastic effect. Both in vitro and in vivo data verify the synergy between photonic therapy in NIR-II and enhanced chemotherapy as enabled by AsP nanosheets, paving the way for efficient nanomedicine-enabled arsenic-based chemotherapeutic tumor treatment.     

Factors affecting detection of a bimodal sour-savory mixture and inter-individual umami taste perception

While basic taste interactions have been the subject of many research studies, there is one combination where data is limited in the literature: sour and umami. This combination is universal in culinary preparations and of key interest to the food industry. Therefore, the primary goal of the present study is to assess how increasing concentrations of acidity (citric acid) affect, if at all, the intensity of a constant concentration of umami (monosodium glutamate, MSG). The secondary goal is to investigate other possible factors in umami taste perception. Here, a crowdsourced cohort of 734 individuals (age range 8–81) tasted and rated the intensity of 50 mM MSG alone, and in combination with citric acid at varying concentrations (1.25 mM, 6.25 mM, 31.25 mM). Participants were also genotyped for the single nucleotide polymorphism rs34160967 in the TAS1R1 gene. The results show a significant decrease in the intensity perception of umami as sour concentration increases (low: p = 0.005, medium: p < 0.001, high: p < 0.001). Situational factors such as participant hunger level and time since last eating also have a significant effect on umami intensity perception. Neither the biological factors of sex, age, and ancestry appear to play a role in umami perception, nor does variation in gene TAS1R1 at rs34160967. These new data contribute to the growing field of taste and sensory interaction by giving evidence that sour suppresses umami taste perception in bi-model samples.     

复杂炼油塔模拟的改进联立方程内外层算法

在内外层算法的基础上，采用联立方程思想将主塔、侧线汽提塔视为一个整体进行建模，并针对复杂炼油塔的特点对算法提出了改进。首先，由于传统内外层法简化的K值模型对组成的变化不敏感，在处理带有石油的体系时，容易出现迭代次数较多，甚至部分塔板温度更新异常的问题，因此采用了汽相分数加和式推导了简化的K值模型加权因子。其次，借鉴流量加和法思想，规定侧线汽提塔的塔底产品流量作为设计变量，增强了算法收敛的稳定性。为验证改进后算法的有效性，采用不同的算法对实际的常压塔进行了模拟，结果显示改进后的算法适合应用于复杂炼油塔的模拟计算。     

基于近红外光谱法快速鉴别转基因油研究

采用近红外光谱法对转基因油/非转基因油的混合溶液进行研究。对采集到的原始光谱分别进行多元散射校正（MSC）、一阶导数（FD）、移动窗口平滑（MWS）、Savitzky-Golay平滑一阶导数（SG1）预处理。研究比较了不同预处理方法对转基因油/非转基因油支持向量机（SVM）建模判别分析的影响，其中MSC预处理后的模型预测效果最好，准确率为91.6%。为了进一步提高模型的精度与稳定性，采用连续投影算法（SPA）对全波长进行特征波长筛选。利用筛选后的15个特征波长输入到SVM中，预测准确率提高到98.3%。实验结果表明，采用近红外光谱法，可以实现对转基因油/非转基因油快速检测，不仅适用于纯转基因油的鉴别，也适用于非转基因油中掺入转基因油的鉴别。     

利用反射地震水体处理技术探测东海冲绳海槽天然气水合物

该文针对东海冲绳海槽盆地的二维地震资料，采用地震海洋学的方法，对水体反射数据进行处理，发现了典型的羽状反射流特征，结合BSR等异常，综合分析认为是渗漏型天然气水合物存在的证据，证明水体处理技术在东海冲绳海槽盆地天然气水合物的研究中是可行的、有效的。     

整体钢平台模板体系风振响应时程分析

整体钢平台模板体系是适应超高层建筑主体施工需要的新型模板体系,在我国有广泛的应用前景。采用自回归过滤技术,考虑三维空间相关性,对具有随机性的脉动风荷载进行有效的模拟,根据模拟得到的风载时程曲线对整体钢平台模板体系的风振响应在时域内进行了分析,得出的相关结论可以为模板体系的设计和施工借鉴。     

高温下钢筋混凝土粘结性能的试验与分析

设计了专用的升温装置和加载装置,通过中心拔出试验,对高温中和高温后经历不同受热温度和加载路径的钢筋与混凝土进行粘结-滑移拔出试验,分析了高温下钢筋与混凝土粘结性能退化机理。研究表明,高温后试件的粘结强度比高温中试件下降较快,但达极限粘结应力时其滑移量相对高温中试件较小。在恒载升温条件下,当达到一定温度时,钢筋与混凝土的滑移进入急剧增长阶段。