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针刺、干姜细辛五味子汤联合肺综合疗法对尘肺病患者生活质量的影响

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实用中西医结合临床 2024年第10期24卷 6-8页

作者：陈海霞肖克田珊珊罗文贵州省遵义市习水县中医医院习水564600

目的探讨中医针刺、干姜细辛五味子汤联合肺综合疗法对尘肺病患者生活质量的影响。方法按照随机数字表法将2023年1~10月就诊于习水县中医医院的150例尘肺病患者分为对照组和治疗组,各75例。对照组给予西药联合肺综合疗法治疗,治疗组... 详细信息

目的探讨中医针刺、干姜细辛五味子汤联合肺综合疗法对尘肺病患者生活质量的影响。方法按照随机数字表法将2023年1~10月就诊于习水县中医医院的150例尘肺病患者分为对照组和治疗组,各75例。对照组给予西药联合肺综合疗法治疗,治疗组在对照组基础上给予针刺、干姜细辛五味子汤治疗。比较两组临床疗效、6 min步行距离(6MWT)、呼吸困难严重程度[采用改良版英国医学研究委员会呼吸困难问卷(mMRC)、博格评分(Borg)评估]、生活质量[采用圣乔治呼吸调查表(SGRQ)评估]、肺功能指标[第1秒用力呼气量(FEV_(1))、用力肺活量(FVC)]及治疗期间不良反应发生情况。结果治疗组治疗总有效率高于对照组(P0.05)。结论中医针刺、干姜细辛五味子汤联合肺综合疗法治疗尘肺病可有效减轻患者呼吸困难程度,提高患者运动耐力,改善患者肺功能,从而提高患者生存质量,且治疗期间无明显不良反应,具有一定的安全性。

关键词：尘肺病中医针刺干姜细辛五味子汤肺综合疗法生活质量运动耐力

基于POI数据的兰州市主城区生活服务业空间分布特征研究

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绿色科技 2024年第13期26卷 171-176,182页

作者：单天爱王立新兰州交通大学建筑与城市规划学院甘肃兰州730070

基于兰州市主城区POI数据,运用ArcGIS空间分析方法、探讨了研究区内生活服务业的空间分布特征。结果表明:①研究区内各类生活服务设施的空间布局存在明显的区域差异,东部和中部较密集,西部和南部分散,形成以“老城区”为核心、连片组团... 详细信息

基于兰州市主城区POI数据,运用ArcGIS空间分析方法、探讨了研究区内生活服务业的空间分布特征。结果表明:①研究区内各类生活服务设施的空间布局存在明显的区域差异,东部和中部较密集,西部和南部分散,形成以“老城区”为核心、连片组团、多中心发展的空间布局;②兰州市城关区中心地带生活服务设施配套较为合理,西固区、安宁区、七里河区生活服务设施配套较差,有待优化改善;③兰州市主城区生活服务设施分布方向受地形影响均呈现出显著的西北-东南走向;④不同服务业在空间分布上显示出较强的相关性;⑤兰州市主城区生活服务设施混合度普遍较高,这得益于其“两山夹一川”的地形特征。

关键词：生活服务设施 POI 空间分布兰州市

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Computer-assisted minimally invasive spine surgery for resection of ossification of the ligamentum flavum in the thoracic spine

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Chinese Medical Journal 2014年第11期127卷 2043-2047页

作者： Yuan Qiang Zheng shan tian Wei Department of Spine Surgery Beijing Jishuitan Hospital the Fourth Clinical Medical College of Peking University Beijing 100035China

Background Ossification of the ligamentum flavum （OLF） has been widely recognized as one of the main causes of thoracic spinal canal stenosis and thoracic *** is the only effective strategy for treating thoracic myelopathy caused by *** purpose of this study was to describe the clinical outcomes of computer-assisted minimally invasive spine surgery （CAMISS） for posterior decompression in patients with thoracic myelopathy caused by *** In all cases,the surgical procedure was performed with the assistance of an intraoperative three-dimensional navigation *** of the spinal cord was performed with a high-speed drill; the supraspinal ligaments and spinous process were partially *** outcomes were evaluated by a modified Japanese Orthopedic Association （JOA） scoring system and recovery *** The mean duration of follow-up for the 14 cases was 3.9 *** patients experienced neurological recovery,the mean JOA score improving from 6.1 points preoperatively to 8.6 points at final follow-up and the mean rate of recovery being 52.7% （excellent in two cases,good in eight,fair in three,and unchanged in one）.Conclusion CAMISS is a safe and effective procedure for resection of the OLF in the thoracic spine.

关键词： computer-assisted minimally invasive spine surgery ligamentum flavum, ossification thoracic spinal canal stenosis decompression

毛乌素沙地黑沙蒿水分利用效率环境调控:从叶片到生态系统

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应用生态学报 2024年第4期35卷 997-1006页

作者：翟树琛王天娇李鑫豪郝少荣贾昕查天山刘鹏北京林业大学水土保持学院北京100083 宁夏盐池毛乌素沙地生态系统国家定位观测研究站宁夏盐池751500 北京林业大学水土保持国家林业局重点实验室北京100083

水分利用效率(WUE)是预测气候变化对生态系统碳、水循环过程的关键指标。以往研究多从单一观测尺度对WUE响应环境的变化进行探究,鲜有研究对不同观测尺度WUE如何响应环境进行论述,这限制了对跨尺度碳水循环的深入理解。本研究选取毛乌... 详细信息

水分利用效率(WUE)是预测气候变化对生态系统碳、水循环过程的关键指标。以往研究多从单一观测尺度对WUE响应环境的变化进行探究,鲜有研究对不同观测尺度WUE如何响应环境进行论述,这限制了对跨尺度碳水循环的深入理解。本研究选取毛乌素沙地优势种黑沙蒿群落,于2022年6—10月,利用固定样地测定与原位连续监测方法对黑沙蒿的光合与蒸腾特征进行观测,分析黑沙蒿叶片、冠层和生态系统水分利用效率季节特征及其环境影响因素。结果表明:叶片水分利用效率(WUE_(L))与冠层水分利用效率(WUE_(T))和生态系统水分利用效率(WUE_(E))的季节变化差异明显。WUE_(L)在6月较大,在8、9月较小,波动范围为0.73~2.98μmol·mmol^(-1);WUE_(T)和WUE_(E)在6月最小,在7、8月最大,波动范围分别为0.10~7.00和0.06~6.25μmol·mmol^(-1)。WUE_(L)与气孔导度呈显著负相关;WUE_(T)与冠层导度和土壤含水量呈显著正相关,与饱和水汽压差呈显著负相关;WUE_(E)与10 cm土层土壤含水量(SWC_(10))呈显著正相关。结构方程模型表明,SWC_(10)和空气温度通过调节气孔导度影响净光合速率和蒸腾速率进而影响WUE_(L);饱和蒸气压差和SWC_(10)通过调节蒸腾速率对WUE_(T)产生影响;土壤含水量、空气温度和饱和蒸气压差通过调节生态系统总初级生产力对WUE_(E)产生影响。未来碳水循环的模型拟合应充分考虑环境因子对不同观测尺度WUE的影响路径与强度。

关键词：黑沙蒿水分利用效率季节变化环境调控

Superconducting Correlations in Small Metallic Grains

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Communications in Theoretical Physics 2001年第12期36卷 705-714页

作者： WANG Jing JI An-Chun tian Guang-shan Department of Physics Peking University Beijing 100871 China Department of Physics Peking University Beijing 100871 China Department of Physics Peking University Beijing 100871 China

By applying the path-integral formulation and the Feynman theorem, we calculate the off-diagonal superconducting correlation in an ultrasmall metallic grain. Unlike its behavior in the bulk limit, we find that this correlation function is an intensive quantity in this case. Therefore, superconductivity is indeed completely suppressed by quantum fluctuations as the diameter of the grain shrinks to the nanometer scale. This conclusion confirms the previous results by numerical calculations. Furthermore, it also imposes a strong constraint on the delocalizing amplitude of the pair-mixing function, which was recently proposed to characterize superconductivity in the canonical *** numbers: ***, ***, 74.80.

关键词： ultrasmall superconducting grain, the off-diagonal correlation function, path integral formulation and resolvent expansion method

Isolation and Crystal Structure of 1',4'-Trans-diol of Abscisic Acid

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Chinese Journal of Structural Chemistry 2006年第9期25卷 1085-1089页

作者： WANG tian-shan ZHOU Jin-Yan TAN Hong Chengdu Institute of Biology The Chinese Academy of Sciences Chengdu 610041 China Department of Chemistry Hainan Normal University Haikou 571158 China

1 ′,4′-Trans-diol of abscisic acid was isolated from botrytis cinerea as a colorless crystal. The molecular and crystal structures have been determined by X-ray diffraction analysis. It crystallizes in orthorhombic system, space group P212121 with a = 6.724（3）, b = 17.559（6）, c = 12.265（2）,A,α =β=γ= 90°, V= 1448.1（8）,A^3, Z=4, Dx = 1.222 g/cm^3, F（000） = 576 and μ（MoKa） = 0.087 mm^-1. The final R = 0.0628 and wR = 0.1604 for 2501 independent reflections with Rint - 0.0160 and 1679 observed reflections with 1 〉2σ（I）. There are three intermolecular hydrogen bonds in a unit cell.

关键词： botrytis cinerea abscisic acid 1′,4′-trans-diol of abscisic acid X-ray diffraction analysis

An efficient bi-objective optimization framework for statistical chip-level yield analysis under parameter variations

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Frontiers of Information Technology & Electronic Engineering 2016年第2期17卷 160-172页

作者： Xin LI Jin SUN Fu XIAO Jiang-shan tian Technology Innovation Center Jiangsu Academy of Safety Science and Technology Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing University of Posts and Telecommunications School of Computer Science and Engineering Nanjing University of Science and Technology

With shrinking technology,the increase in variability of process,voltage,and temperature(PVT) parameters significantly impacts the yield analysis and optimization for chip *** yield estimation algorithms have been limited to predicting either timing or power ***,neglecting the correlation between power and delay will result in significant yield *** of these approaches also suffer from high computational complexity and long *** suggest a novel bi-objective optimization framework based on Chebyshev affine arithmetic(CAA) and the adaptive weighted sum(AWS) *** power and timing yield are set as objective functions in this *** two objectives are optimized simultaneously to maintain the correlation between *** proposed method first predicts the guaranteed probability bounds for leakage and delay distributions under the assumption of arbitrary *** a power-delay bi-objective optimization model is formulated by computation of cumulative distribution function(CDF) ***,the AWS method is applied for power-delay optimization to generate a well-distributed set of Pareto-optimal *** results on ISCAS benchmark circuits show that the proposed bi-objective framework is capable of providing sufficient trade-off information between power and timing yield.

关键词： Parameter variations Parametric yield Multi-objective optimization Chebyshev affine Adaptive weighted sum

Cropland physical disturbance intensity： plot-scale measurement and its application for soil erosion reduction in mountainous areas

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Journal of Mountain Science 2018年第1期15卷 198-210页

作者： LI Ming WANG Yu-kuan XU Pei FU Bin tian Cong-shan WANG shan Institute of Mountain Hazards and Environment The Chinese Academy of Sciences Chengdu 610041 China University of Chinese Academy of Sciences Beijing 100049 China Chengdu Land Planning and Cadastre Center Chengdu 610074 China

Various kinds of human disturbances on cropland are the main reasons for soil erosion and land *** practices in mountainous areas vary greatly among cropland plots because of the heterogeneity of biophysical conditions and differences in farmers'management *** main purpose of this paper is to develop a composite index of cropland physical disturbance intensity(CLDI)to reflect the plot-scale discrepancy of potential soil erosion in mountainous *** study was based on both plot survey and household interview data,collected from six typical catchments in mountainous areas of southwestern *** kinds of physical disturbance practices and two kinds of conservation practices during one crop rotation period were synthesized to develop the CLDI *** rough set theory was referenced to avoid subjectivity during weight *** results show that conventional tillage,deep fertilization,and manual weeding are the main causes of cropland soil erosion,whereas manure application in combination with seasonal fallow reduces soil *** crop types as well as cropland location factors determine the spatial pattern of *** rotation modes with major crops of tobacco and maize resulted in a maximal CLDI,and cropland plots with a distance radius of 150 meters away from households received the most intensive physical *** results are critical to help better protect rural environments in mountainous *** on the results,methods to reduce cropland soil erosion are suggested.

关键词： Cropland disturbance intensity Soil erosion Farming practices Farmers' behavior Rough set theory Index development

Effects of van Hove Singularities on Transport of Quantum Dot Systems in Kondo Regime

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Communications in Theoretical Physics 2005年第3X期44卷 563-572页

作者： HU Zhi-Ming YANG Kai-Hua tian Guang-shan School of Physics Peking University Beijing 100871 China College of Applied Sciences Beijing University of Technology Beijing 100022 China

In the present paper, we study the effect of van Hove singularities of conduction electron on the transport of a single quantum dot system in the Kondo regime. By using both the equation-of-motion and the noncrossing approximation techniques, we show that the corrections caused by these singularities are actually minor. It can be explained by observing that the singularities in the equations, which determine the electronic DOS on the dot, are integrable. Furthermore, we find that, although each line width function is divergent at van Hove singular points, the total divergence is canceled out in the final formula to calculate the current through the system. Therefore, as far as the qualitative properties of the system is concerned, these singularities can be ignored and the wide-band approximation can be safely used in calculation.

关键词： quantum dot system van Hove singularities Kondo effect