To increase accuracy of navigation parameters,a perspective measuring complex with intellectual components is developed.Conception of synthesis optimal structure of the measuring complex is realized basing on a select...To increase accuracy of navigation parameters,a perspective measuring complex with intellectual components is developed.Conception of synthesis optimal structure of the measuring complex is realized basing on a selective method using principles of the functional systems.Selection of measured information is finished by original numeric criterion of observation level of state vector components.Prediction is realized by algorithm of self-organization that makes synthesis of the optimal complication.Therefore mechanism of self-regulation is realized and accuracy of the selective navigation complex is increased.展开更多
Insects respond to changes in microhabitat caused by canopy disturbance, and thus can be used to examine the ecological impacts of harvesting. Single-tree selection harvesting is the most common silvicultural system u...Insects respond to changes in microhabitat caused by canopy disturbance, and thus can be used to examine the ecological impacts of harvesting. Single-tree selection harvesting is the most common silvicultural system used to emulate local small-scale natural disturbance and maintain uneven-aged forest structure in temperate forests. Here, we test for differences in richness, abundance, and composition of hymenopteran and saproxylic insect assemblages at four different taxon levels （selected insect orders; and all hymenopteran families, and braconid subfamilies and morphospecies） between the canopy and understory of unharvested and single-tree selection harvested sites in a northern temperate forest from central Canada. Harvesting had no effect on insect assemblage richness, composition or abundance at the three highest taxon levels （order, family and subfamily）. Similarly, richness and abundance at the lowest-taxon level （braconid morphospecies） were similar, although composition differed slightly between unharvested and harvested stands. Insect assemblages were vertically stratified, with generally higher abundance （for Diptera, Hymenoptera, some hymenopteran families and braconid subfamilies） and richness （for braconid morphospecies） in the understory than the canopy. In particular, composition of the braconid morphospecies assemblage showed relatively low similarity between the understory and canopy. Single-tree selection harvesting appears to influence wood-associated insect taxa only subtly through small changes in community composition at the lowest taxon level, and thus is recommended as a conservative approach for managing these northern temperate forests.展开更多
-On the basis of the data obtained from the investigations on some rivers in China and Australia, the author discusses the spatial and temporal changes of various portions of fluvial-estuarine system during postglacia...-On the basis of the data obtained from the investigations on some rivers in China and Australia, the author discusses the spatial and temporal changes of various portions of fluvial-estuarine system during postglacial sea-level rising in present coastal and deltaic areas. The evolution of a fluvial-estuarine system can be divided into four development stages: early transgression, late transgression, stationary and regression. Early transgression brought about filling-in of the paleo-valley formed in low stand of sea level. In response to late transgression the estuaries were created, during the stationary stage the big swamp was developed. The regression led to estuaries to be filled with sediments and then became deltas. At the same locality the fluvial-estuarine system changed with time. In the transgressive period the lower reach of a river changed into an estuary, and then became nearshore area. In the regressive period the nearshore area changed into an estuary , and then became delta.展开更多
In this paper,the dyeing behavior of shrinkproofed woolusing Lanasol reactive dyes was studied.Good dyeinglevelness was obtained by modifying the common dyeingprocess.To minimize the strength loss,low temperaturedyein...In this paper,the dyeing behavior of shrinkproofed woolusing Lanasol reactive dyes was studied.Good dyeinglevelness was obtained by modifying the common dyeingprocess.To minimize the strength loss,low temperaturedyeing process was chosen.The strength loss of shrink-proofed wool dyed at low temperature and high tempera-ture were compared.The exhaustion and fixation werealso determined at different temperature and pH.展开更多
目的探究个体化饮食指导在糖尿病骨性关节炎患者中的应用价值。方法选取晋江市医院(上海市第六人民医院福建医院)于2023年2—10月收治的90例糖尿病骨性关节炎患者为研究对象,采用密闭信封法分为对照组和研究组,各45例。对照组实施常规干...目的探究个体化饮食指导在糖尿病骨性关节炎患者中的应用价值。方法选取晋江市医院(上海市第六人民医院福建医院)于2023年2—10月收治的90例糖尿病骨性关节炎患者为研究对象,采用密闭信封法分为对照组和研究组,各45例。对照组实施常规干预,研究组结合个体化饮食指导。于干预前及干预2个月后,检测两组空腹血糖(Fasting Plasma Glucose,FPG)、餐后2 h血糖(2 h Postprandial Plasma Glucose,2 hPG)水平。对比两组负性情绪及生活质量简表(World Health Organization Quality of Life 100,WHOQOL-100)评分。结果干预2个月后,研究组FPG水平为(5.34±0.51)mmol/L,2 hPG水平为(6.73±0.56)mmol/L,均低于对照组,差异有统计学意义(t=5.348、10.807,P均<0.05)。研究组负性情绪评分低于对照组,WHOQOL-100各维度评分均高于对照组,差异有统计学意义(P均<0.05)。结论糖尿病骨性关节炎患者行个体化饮食指导干预,可有效降低血糖水平,缓解负性情绪,从而提高患者生活质量。展开更多
针对SAR图像数据集的特点,提出了一种基于像元级图像时间序列相似性的水体提取方法。其基本思想是:构建像元级SAR图像时间序列,选取动态时间归整(dynamic time warping,DTW)算法作为时间序列相似度的度量方法,计算所有像元与标准水体像...针对SAR图像数据集的特点,提出了一种基于像元级图像时间序列相似性的水体提取方法。其基本思想是:构建像元级SAR图像时间序列,选取动态时间归整(dynamic time warping,DTW)算法作为时间序列相似度的度量方法,计算所有像元与标准水体像元时间序列的相似性;将水体边缘混合像元的DTW距离值设定为参考阈值,采用阈值法提取相似性较高的时间序列数据,其对应的像元即被识别为水体像元;最后利用每个像元的DTW距离值代替其后向散射值,采用8邻域搜索方法提高水体识别的精度。以2008年1—12月获取的25景分辨率为150 m的ENVISAT ASAR图像进行水体像元提取试验,结果表明,该方法的完整率和正确率均较高,能够应用于大范围区域水体的提取与制图。展开更多
文摘To increase accuracy of navigation parameters,a perspective measuring complex with intellectual components is developed.Conception of synthesis optimal structure of the measuring complex is realized basing on a selective method using principles of the functional systems.Selection of measured information is finished by original numeric criterion of observation level of state vector components.Prediction is realized by algorithm of self-organization that makes synthesis of the optimal complication.Therefore mechanism of self-regulation is realized and accuracy of the selective navigation complex is increased.
基金funded by the Richard Ivey Foundationthe Haliburton ForestWild Life Reserve
文摘Insects respond to changes in microhabitat caused by canopy disturbance, and thus can be used to examine the ecological impacts of harvesting. Single-tree selection harvesting is the most common silvicultural system used to emulate local small-scale natural disturbance and maintain uneven-aged forest structure in temperate forests. Here, we test for differences in richness, abundance, and composition of hymenopteran and saproxylic insect assemblages at four different taxon levels （selected insect orders; and all hymenopteran families, and braconid subfamilies and morphospecies） between the canopy and understory of unharvested and single-tree selection harvested sites in a northern temperate forest from central Canada. Harvesting had no effect on insect assemblage richness, composition or abundance at the three highest taxon levels （order, family and subfamily）. Similarly, richness and abundance at the lowest-taxon level （braconid morphospecies） were similar, although composition differed slightly between unharvested and harvested stands. Insect assemblages were vertically stratified, with generally higher abundance （for Diptera, Hymenoptera, some hymenopteran families and braconid subfamilies） and richness （for braconid morphospecies） in the understory than the canopy. In particular, composition of the braconid morphospecies assemblage showed relatively low similarity between the understory and canopy. Single-tree selection harvesting appears to influence wood-associated insect taxa only subtly through small changes in community composition at the lowest taxon level, and thus is recommended as a conservative approach for managing these northern temperate forests.
文摘-On the basis of the data obtained from the investigations on some rivers in China and Australia, the author discusses the spatial and temporal changes of various portions of fluvial-estuarine system during postglacial sea-level rising in present coastal and deltaic areas. The evolution of a fluvial-estuarine system can be divided into four development stages: early transgression, late transgression, stationary and regression. Early transgression brought about filling-in of the paleo-valley formed in low stand of sea level. In response to late transgression the estuaries were created, during the stationary stage the big swamp was developed. The regression led to estuaries to be filled with sediments and then became deltas. At the same locality the fluvial-estuarine system changed with time. In the transgressive period the lower reach of a river changed into an estuary, and then became nearshore area. In the regressive period the nearshore area changed into an estuary , and then became delta.
文摘In this paper,the dyeing behavior of shrinkproofed woolusing Lanasol reactive dyes was studied.Good dyeinglevelness was obtained by modifying the common dyeingprocess.To minimize the strength loss,low temperaturedyeing process was chosen.The strength loss of shrink-proofed wool dyed at low temperature and high tempera-ture were compared.The exhaustion and fixation werealso determined at different temperature and pH.
文摘目的探究个体化饮食指导在糖尿病骨性关节炎患者中的应用价值。方法选取晋江市医院(上海市第六人民医院福建医院)于2023年2—10月收治的90例糖尿病骨性关节炎患者为研究对象,采用密闭信封法分为对照组和研究组,各45例。对照组实施常规干预,研究组结合个体化饮食指导。于干预前及干预2个月后,检测两组空腹血糖(Fasting Plasma Glucose,FPG)、餐后2 h血糖(2 h Postprandial Plasma Glucose,2 hPG)水平。对比两组负性情绪及生活质量简表(World Health Organization Quality of Life 100,WHOQOL-100)评分。结果干预2个月后,研究组FPG水平为(5.34±0.51)mmol/L,2 hPG水平为(6.73±0.56)mmol/L,均低于对照组,差异有统计学意义(t=5.348、10.807,P均<0.05)。研究组负性情绪评分低于对照组,WHOQOL-100各维度评分均高于对照组,差异有统计学意义(P均<0.05)。结论糖尿病骨性关节炎患者行个体化饮食指导干预,可有效降低血糖水平,缓解负性情绪,从而提高患者生活质量。
文摘针对SAR图像数据集的特点,提出了一种基于像元级图像时间序列相似性的水体提取方法。其基本思想是:构建像元级SAR图像时间序列,选取动态时间归整(dynamic time warping,DTW)算法作为时间序列相似度的度量方法,计算所有像元与标准水体像元时间序列的相似性;将水体边缘混合像元的DTW距离值设定为参考阈值,采用阈值法提取相似性较高的时间序列数据,其对应的像元即被识别为水体像元;最后利用每个像元的DTW距离值代替其后向散射值,采用8邻域搜索方法提高水体识别的精度。以2008年1—12月获取的25景分辨率为150 m的ENVISAT ASAR图像进行水体像元提取试验,结果表明,该方法的完整率和正确率均较高,能够应用于大范围区域水体的提取与制图。
