本文基于OFES(Ocean general circulation model For the Earth Simulator)模式0.1°×0.1°高分辨率温盐和三维流场数据,分析Omega方程在南海垂向流速诊断中的适用性和南海垂向流速的时空变化特征。结果表明,Omega方程诊...本文基于OFES(Ocean general circulation model For the Earth Simulator)模式0.1°×0.1°高分辨率温盐和三维流场数据,分析Omega方程在南海垂向流速诊断中的适用性和南海垂向流速的时空变化特征。结果表明,Omega方程诊断垂向流速w_(Omega)与OFES模式垂向流速w_(OFEES)在南海海盆大部分区域量级相当,约为O(10^(-5) m/s),南海北部陆架区则小一个量级。w_(Omega)和w_(OFEES)的空间相关系数r^(s)在台湾西南部(R1区)和越南以东(R2区)较大,在菲律宾西(R3区)、南海南部(R4区)以及海南岛东北部(R5区)较小。季节变化上,R1、R2和R4区r^(s)冬季大、夏季小,R3和R5区r^(s)无明显季节特征。R1和R2区是Omega方程的适用区,其w_(Omega)与w_(OFEES)的时间相关系数rt较大。各区域中形变项(S_(DEF))的贡献率均超过50%,整体大于平流项(S_(ADV)),并呈现出“上层S_(ADV)主导,下层S_(DEF)增强”的共同垂向结构,其临界深度在20~70 m之间。对比eSQG(effective Surface Quasi-Geostrophy)诊断垂向流速结果,Omega方程明显更适用于南海垂向流速的诊断。展开更多
Objective:To investigate the effectiveness of Omega in the correction of onychocryptosis among individuals with mild to moderate cases.Methods:Sixty patients with mild to moderate onychocryptosis,treated at our instit...Objective:To investigate the effectiveness of Omega in the correction of onychocryptosis among individuals with mild to moderate cases.Methods:Sixty patients with mild to moderate onychocryptosis,treated at our institution from April 1,2023,to March 31,2025,were selected as subjects for this study.The participants were randomly assigned into two groups using a random number table:the control group,which received nail groove packing,and the observation group,which underwent Omega onychocryptosis correction,with 30 patients in each group.The relief from inflammation,duration of healing,comfort of the foot,and satisfaction levels of the two groups were assessed and compared.Results:The duration of redness and swelling,discomfort,exudate,and healing time in the observation group were all significantly shorter than in the control group(P<0.05).No significant difference in VAS scores was seen between the two groups three days post-treatment(P>0.05);however,one and two weeks post-treatment,the VAS scores in the observation group were significantly lower than those in the control group(P<0.05).The observation group’s satisfaction rating was 100.00%(30/30),markedly surpassing the control group’s rate of 83.33%(25/30),with statistical significance(P<0.05).Conclusion:Omega onychocryptosis correction for individuals with mild to moderate onychocryptosis can yield favorable treatment outcomes,significantly alleviate pain,enhance symptomatology,and elevate patient satisfaction.展开更多
Elinvar alloys exhibit temperature-independent elastic modulus within a specific temperature range,known as the Elinvar effect,which was first observed in Fe-Ni alloys[1].The unique temperature-independent elastic mod...Elinvar alloys exhibit temperature-independent elastic modulus within a specific temperature range,known as the Elinvar effect,which was first observed in Fe-Ni alloys[1].The unique temperature-independent elastic modulus makes Elinvar alloys highly desirable in precision-control applications,including aerospace,electronics,and optical instruments.Currently,most of the used and studied Elinvar alloys are ferromagnetic alloys(FeNi and Fe-Pt)and antiferromagnetic alloys(Fe-Mn and γ-MnCu)[2–4].The Elinvar effect in these alloys typically originates from magnetostriction or magnetoelastic effects,which are magnetic fieldor magnetic transition-dependent[5].Consequently,these Elinvar alloys cannot function properly in the presence of a magnetic field owing to their Elinvar effect being closely tied to magnetic phase transition.Therefore,developing non-magneticdependent Elinvar alloys is highly essential to widen their practical applications.展开更多
文摘本文基于OFES(Ocean general circulation model For the Earth Simulator)模式0.1°×0.1°高分辨率温盐和三维流场数据,分析Omega方程在南海垂向流速诊断中的适用性和南海垂向流速的时空变化特征。结果表明,Omega方程诊断垂向流速w_(Omega)与OFES模式垂向流速w_(OFEES)在南海海盆大部分区域量级相当,约为O(10^(-5) m/s),南海北部陆架区则小一个量级。w_(Omega)和w_(OFEES)的空间相关系数r^(s)在台湾西南部(R1区)和越南以东(R2区)较大,在菲律宾西(R3区)、南海南部(R4区)以及海南岛东北部(R5区)较小。季节变化上,R1、R2和R4区r^(s)冬季大、夏季小,R3和R5区r^(s)无明显季节特征。R1和R2区是Omega方程的适用区,其w_(Omega)与w_(OFEES)的时间相关系数rt较大。各区域中形变项(S_(DEF))的贡献率均超过50%,整体大于平流项(S_(ADV)),并呈现出“上层S_(ADV)主导,下层S_(DEF)增强”的共同垂向结构,其临界深度在20~70 m之间。对比eSQG(effective Surface Quasi-Geostrophy)诊断垂向流速结果,Omega方程明显更适用于南海垂向流速的诊断。
文摘目的建立近红外光谱法(near-infrared spectrometry,NIRS)快速检测鸡蛋中Omega-3多不饱和脂肪酸含量。方法共采集115份市售鸡蛋,将其蛋黄冻干处理后制成蛋黄粉,采用气相色谱法测得α-亚麻酸(α-linolenic acid,ALA)、二十碳五烯酸(eicosapentaenoic acid,EPA)和二十二碳六烯酸(docosahexaenoic acid,DHA)的含量,并用近红外光谱仪进行光谱扫描。基于偏最小二乘法(partial least-square method,PLS)用20种方法对光谱图进行预处理,建立ALA、EPA和DHA的近红外定量检测模型,以校正集决定系数(coefficient of determination of calibration set,rc)、验证集决定系数(coefficient of determination of prediction set,rp)和相对分析误差(relative percent deviation,RPD)作为模型的评价指标。结果ALA、EPA和DHA最优的光谱预处理方法分别为多元散射校正(multiple scatter correction,MSC)+二阶求导(second derivative,2nd)+Savitzky-Golay平滑、2nd和标准正态变化(standard normal variate,SNV)+2nd+Norris Derivative平滑,模型的rc值分别为0.9906、0.9311和0.9058,rp值分别为0.9894、0.6978和0.9098。结论该研究成功建立可用于鸡蛋中ALA、EPA和DHA含量快速测定的近红外模型,为鸡蛋中脂肪酸得快速检测提供了一种有效工具。
文摘Objective:To investigate the effectiveness of Omega in the correction of onychocryptosis among individuals with mild to moderate cases.Methods:Sixty patients with mild to moderate onychocryptosis,treated at our institution from April 1,2023,to March 31,2025,were selected as subjects for this study.The participants were randomly assigned into two groups using a random number table:the control group,which received nail groove packing,and the observation group,which underwent Omega onychocryptosis correction,with 30 patients in each group.The relief from inflammation,duration of healing,comfort of the foot,and satisfaction levels of the two groups were assessed and compared.Results:The duration of redness and swelling,discomfort,exudate,and healing time in the observation group were all significantly shorter than in the control group(P<0.05).No significant difference in VAS scores was seen between the two groups three days post-treatment(P>0.05);however,one and two weeks post-treatment,the VAS scores in the observation group were significantly lower than those in the control group(P<0.05).The observation group’s satisfaction rating was 100.00%(30/30),markedly surpassing the control group’s rate of 83.33%(25/30),with statistical significance(P<0.05).Conclusion:Omega onychocryptosis correction for individuals with mild to moderate onychocryptosis can yield favorable treatment outcomes,significantly alleviate pain,enhance symptomatology,and elevate patient satisfaction.
基金financially supported by the National Natural Science Foundation of China(No.52401161)the Natural Science Foundation of Sichuan Province for Young Scholars(No.24NSFSC6582)+3 种基金the Postdoctoral Fellowship Program of CPSF(No.GZC20231761)the National Natural Science Foundation of China(No.52271249)the Key Research and Development Program of Shaanxi(No.2023-YBGY-488)the Xi'an Talent Plan(No.XAYC240016).
文摘Elinvar alloys exhibit temperature-independent elastic modulus within a specific temperature range,known as the Elinvar effect,which was first observed in Fe-Ni alloys[1].The unique temperature-independent elastic modulus makes Elinvar alloys highly desirable in precision-control applications,including aerospace,electronics,and optical instruments.Currently,most of the used and studied Elinvar alloys are ferromagnetic alloys(FeNi and Fe-Pt)and antiferromagnetic alloys(Fe-Mn and γ-MnCu)[2–4].The Elinvar effect in these alloys typically originates from magnetostriction or magnetoelastic effects,which are magnetic fieldor magnetic transition-dependent[5].Consequently,these Elinvar alloys cannot function properly in the presence of a magnetic field owing to their Elinvar effect being closely tied to magnetic phase transition.Therefore,developing non-magneticdependent Elinvar alloys is highly essential to widen their practical applications.
