In recent years,in response to the government’s call to promote rural tourism,the tourism industry in Ganzhou has become increasingly mature with the strong support of the government,and ecological farm is a good car...In recent years,in response to the government’s call to promote rural tourism,the tourism industry in Ganzhou has become increasingly mature with the strong support of the government,and ecological farm is a good carrier and platform.The paper studied the status quo,advantages and existing problems of ecological farm construction in Dashe Village,Shicheng County,and discussed the construction of ecological farm from the aspects of development goal,goal system,spatial layout and characteristic industry construction.展开更多
THE prospects for a China-U.S. trade deal are on hold for now, but the repercussions of not having one echoed through the political arena and markets. Joe Biden, currently the front-runner for the Democratic nominatio...THE prospects for a China-U.S. trade deal are on hold for now, but the repercussions of not having one echoed through the political arena and markets. Joe Biden, currently the front-runner for the Democratic nomination for U.S. president, criticized President Donald Trump for his handling of the most recent round of trade negotiations, which concluded on May 10.展开更多
Charge transfer characteristics of the long wavelength semiconductor laser structures, containing quantum dot layers (QDs), were investigated by means of temperature dependent current-voltage and electroluminescence m...Charge transfer characteristics of the long wavelength semiconductor laser structures, containing quantum dot layers (QDs), were investigated by means of temperature dependent current-voltage and electroluminescence measurements over InAs/InP, and InAs/GaAs based p-i-n structures. In InAs/InP elongated QDs (QDashes) structure, injected carriers were tunneled from the quantum well into QDashes through a thin barrier and subsequently recombined within QDashes. Meanwhile, for InAs/GaAs structure, tunneling kind transport was exhibited in both forward and reverse bias voltage directions. The onset of light took place when the forward bias exceeded 1.3 V (3 V) for InAs/InP (InAs/GaAs) p-i-n structure through electroluminescence measurements. The peak value of emitted laser light for InAs/InP QDashes and InAs/GaAs QDs occurred in 1.55 μm and 1.3 μm, respectively.展开更多
The distinctive style of Charles Lamb’s essays has been interpreted in different ways-abundant allusions and rhetorical devices,quaintness and vernacular,antique colloquialism,witty humor,bitter sweetness,profound hu...The distinctive style of Charles Lamb’s essays has been interpreted in different ways-abundant allusions and rhetorical devices,quaintness and vernacular,antique colloquialism,witty humor,bitter sweetness,profound humanity,etc.Nevertheless,so far the extensive use of parentheses and dashes in his representative work Essays of Elia has not been paid enough attention and a detailed investigation is virtually absent.This paper presents an effort to analyze Essays of Elia through probing into the parentheses and dashes as paratexts in regard to their stylistic effects from two perspectives-the linguistic perspective and the semantic perspective,in hope of expanding the scope of“paratext”.The major finding of the paper is that in Essays of Elia,parentheses and dashes as paratexts serving as stylistic markers are indispensable supplements which have special stylistic effects.展开更多
柑桔园行间定向喷雾试验结果表明,在41%农达AS中加入70%苯嘧磺草胺WG和助剂Dash不仅能有效控制乌蔹莓、铁苋菜、假一年蓬、加拿大一枝黄花等多种耐草甘膦阔叶杂草的危害,控制多年生杂草的再生,而且作用速度可与20%克无踪AS相当,对柑桔...柑桔园行间定向喷雾试验结果表明,在41%农达AS中加入70%苯嘧磺草胺WG和助剂Dash不仅能有效控制乌蔹莓、铁苋菜、假一年蓬、加拿大一枝黄花等多种耐草甘膦阔叶杂草的危害,控制多年生杂草的再生,而且作用速度可与20%克无踪AS相当,对柑桔生长安全。从高效、经济、安全的角度综合考虑,三者混用的适宜剂量为41%农达AS 1 000～1 500 g ai/hm^2＋70%苯嘧磺草胺WG 12.5～25.0 g ai/hm^2＋助剂Dash（喷液量的1%）。展开更多
我国城市和农村地区人群高血压的患病率均逐年增高。高血压的发生除与年龄、遗传等因素有关外,膳食因素在高血压发病中的作用不容小觑,如高盐饮食、低钾饮食、能量摄入过多、膳食模式不合理等。因此,膳食干预是高血压的重要防治措施之...我国城市和农村地区人群高血压的患病率均逐年增高。高血压的发生除与年龄、遗传等因素有关外,膳食因素在高血压发病中的作用不容小觑,如高盐饮食、低钾饮食、能量摄入过多、膳食模式不合理等。因此,膳食干预是高血压的重要防治措施之一。国内外研究证实,DASH(Dietary Approaches to Stop Hypertension)饮食、地中海饮食等平衡膳食模式具有预防或治疗高血压的作用,尤其是DASH饮食被诸多国家高血压防治指南所推荐。我国2014年版高血压防治指南中明确给出了低盐膳食处方,但在膳食的其他方面未给予详细指导建议。由于我国各地饮食的巨大差异以及经济发展的不平衡,照搬国外膳食模式来预防高血压的发生可能存在一定困难。本文结合笔者的前期研究、国内外高血压膳食研究进展,详细阐述膳食在高血压发病和防治中的作用,探讨适合我国居民的平衡膳食模式,旨在为高血压防治提供新的方向。展开更多
目的探讨桡骨远端骨折后以医生客观检查为主的评价方法与以患者主观感受为主的评价方法之间的关系,并分析腕关节的功能主要受哪些因素的影响。方法回顾性分析桡骨远端骨折术后接受手术治疗且随访超过1年的患者205例,在术后2、4、6周及3...目的探讨桡骨远端骨折后以医生客观检查为主的评价方法与以患者主观感受为主的评价方法之间的关系,并分析腕关节的功能主要受哪些因素的影响。方法回顾性分析桡骨远端骨折术后接受手术治疗且随访超过1年的患者205例,在术后2、4、6周及3、6、12个月,医生分别测量患者腕关节最大伸屈、旋前旋后、桡偏尺偏角度及握力,患者填写肩、前臂、手功能(disabilities of the arm,should,and hand,DASH)调查问卷和疼痛评分。通过多元线性回归模型评估两种评价方法间的关系。结果经手术治疗后,患者腕关节在各个维度的活动范围、握力不断提高,术后1年伸屈角能达到(113.7±6.9)°,旋后能达到(81.2±3.8)°,握力能恢复至对侧的81.6%;DASH评分及疼痛评分不断降低,术后1年DASH和疼痛评分分别为(17.6±2.9)分,(16.1±2.5)分。经回归分析可知,疼痛评分、握力和旋后角度三个变量与DASH评分存在相关性,能解释DASH评分变异的61%,经模型重建后的相关系数分别为4.03,-0.19,-0.427。而其他因素与DASH评分的关系不明显。旋后功能对腕关节功能的发挥起着十分重要的作用。结论疼痛、握力和旋后是影响患者术后腕关节功能的重要因素,与患者的自我体验密切相关。展开更多
近年来,基于HTTP(Hyper Text Transport Protocol)的网络视频流传输方式越来越受到人们的关注,同时出现了若干相近的解决方案,实现了在HTTP上的动态自适应视频流传输。MPEG和3GPP在这些方案的基础上制定了一个新的基于HTTP的网络动态自...近年来,基于HTTP(Hyper Text Transport Protocol)的网络视频流传输方式越来越受到人们的关注,同时出现了若干相近的解决方案,实现了在HTTP上的动态自适应视频流传输。MPEG和3GPP在这些方案的基础上制定了一个新的基于HTTP的网络动态自适应流传输标准——DASH,并成为ISO/IEC国际标准于2012年正式发布。DASH系统工作于普通的Web服务器/客户端方式,它将同一内容的多个不同质量的视频流分片、定位和描述,使得这些视频分片能够如同普通文件一样通过HTTP协议在网络中传输。用户可以向服务器请求所需的视频,动态自适应地根据自己的网络带宽、接受能力进行选择、接收、解码和播放。DASH为视频流传输提供了一种高效、便捷的传送方式,特别适用于视频直播、点播、多屏显示等业务。随着DASH标准的逐渐完善,基于HTTP的网络视频流传输必将具有更加广泛的应用前景。展开更多
文摘In recent years,in response to the government’s call to promote rural tourism,the tourism industry in Ganzhou has become increasingly mature with the strong support of the government,and ecological farm is a good carrier and platform.The paper studied the status quo,advantages and existing problems of ecological farm construction in Dashe Village,Shicheng County,and discussed the construction of ecological farm from the aspects of development goal,goal system,spatial layout and characteristic industry construction.
文摘THE prospects for a China-U.S. trade deal are on hold for now, but the repercussions of not having one echoed through the political arena and markets. Joe Biden, currently the front-runner for the Democratic nomination for U.S. president, criticized President Donald Trump for his handling of the most recent round of trade negotiations, which concluded on May 10.
文摘Charge transfer characteristics of the long wavelength semiconductor laser structures, containing quantum dot layers (QDs), were investigated by means of temperature dependent current-voltage and electroluminescence measurements over InAs/InP, and InAs/GaAs based p-i-n structures. In InAs/InP elongated QDs (QDashes) structure, injected carriers were tunneled from the quantum well into QDashes through a thin barrier and subsequently recombined within QDashes. Meanwhile, for InAs/GaAs structure, tunneling kind transport was exhibited in both forward and reverse bias voltage directions. The onset of light took place when the forward bias exceeded 1.3 V (3 V) for InAs/InP (InAs/GaAs) p-i-n structure through electroluminescence measurements. The peak value of emitted laser light for InAs/InP QDashes and InAs/GaAs QDs occurred in 1.55 μm and 1.3 μm, respectively.
文摘The distinctive style of Charles Lamb’s essays has been interpreted in different ways-abundant allusions and rhetorical devices,quaintness and vernacular,antique colloquialism,witty humor,bitter sweetness,profound humanity,etc.Nevertheless,so far the extensive use of parentheses and dashes in his representative work Essays of Elia has not been paid enough attention and a detailed investigation is virtually absent.This paper presents an effort to analyze Essays of Elia through probing into the parentheses and dashes as paratexts in regard to their stylistic effects from two perspectives-the linguistic perspective and the semantic perspective,in hope of expanding the scope of“paratext”.The major finding of the paper is that in Essays of Elia,parentheses and dashes as paratexts serving as stylistic markers are indispensable supplements which have special stylistic effects.
文摘柑桔园行间定向喷雾试验结果表明,在41%农达AS中加入70%苯嘧磺草胺WG和助剂Dash不仅能有效控制乌蔹莓、铁苋菜、假一年蓬、加拿大一枝黄花等多种耐草甘膦阔叶杂草的危害,控制多年生杂草的再生,而且作用速度可与20%克无踪AS相当,对柑桔生长安全。从高效、经济、安全的角度综合考虑,三者混用的适宜剂量为41%农达AS 1 000～1 500 g ai/hm^2＋70%苯嘧磺草胺WG 12.5～25.0 g ai/hm^2＋助剂Dash（喷液量的1%）。
文摘我国城市和农村地区人群高血压的患病率均逐年增高。高血压的发生除与年龄、遗传等因素有关外,膳食因素在高血压发病中的作用不容小觑,如高盐饮食、低钾饮食、能量摄入过多、膳食模式不合理等。因此,膳食干预是高血压的重要防治措施之一。国内外研究证实,DASH(Dietary Approaches to Stop Hypertension)饮食、地中海饮食等平衡膳食模式具有预防或治疗高血压的作用,尤其是DASH饮食被诸多国家高血压防治指南所推荐。我国2014年版高血压防治指南中明确给出了低盐膳食处方,但在膳食的其他方面未给予详细指导建议。由于我国各地饮食的巨大差异以及经济发展的不平衡,照搬国外膳食模式来预防高血压的发生可能存在一定困难。本文结合笔者的前期研究、国内外高血压膳食研究进展,详细阐述膳食在高血压发病和防治中的作用,探讨适合我国居民的平衡膳食模式,旨在为高血压防治提供新的方向。
文摘目的探讨桡骨远端骨折后以医生客观检查为主的评价方法与以患者主观感受为主的评价方法之间的关系,并分析腕关节的功能主要受哪些因素的影响。方法回顾性分析桡骨远端骨折术后接受手术治疗且随访超过1年的患者205例,在术后2、4、6周及3、6、12个月,医生分别测量患者腕关节最大伸屈、旋前旋后、桡偏尺偏角度及握力,患者填写肩、前臂、手功能(disabilities of the arm,should,and hand,DASH)调查问卷和疼痛评分。通过多元线性回归模型评估两种评价方法间的关系。结果经手术治疗后,患者腕关节在各个维度的活动范围、握力不断提高,术后1年伸屈角能达到(113.7±6.9)°,旋后能达到(81.2±3.8)°,握力能恢复至对侧的81.6%;DASH评分及疼痛评分不断降低,术后1年DASH和疼痛评分分别为(17.6±2.9)分,(16.1±2.5)分。经回归分析可知,疼痛评分、握力和旋后角度三个变量与DASH评分存在相关性,能解释DASH评分变异的61%,经模型重建后的相关系数分别为4.03,-0.19,-0.427。而其他因素与DASH评分的关系不明显。旋后功能对腕关节功能的发挥起着十分重要的作用。结论疼痛、握力和旋后是影响患者术后腕关节功能的重要因素,与患者的自我体验密切相关。
文摘近年来,基于HTTP(Hyper Text Transport Protocol)的网络视频流传输方式越来越受到人们的关注,同时出现了若干相近的解决方案,实现了在HTTP上的动态自适应视频流传输。MPEG和3GPP在这些方案的基础上制定了一个新的基于HTTP的网络动态自适应流传输标准——DASH,并成为ISO/IEC国际标准于2012年正式发布。DASH系统工作于普通的Web服务器/客户端方式,它将同一内容的多个不同质量的视频流分片、定位和描述,使得这些视频分片能够如同普通文件一样通过HTTP协议在网络中传输。用户可以向服务器请求所需的视频,动态自适应地根据自己的网络带宽、接受能力进行选择、接收、解码和播放。DASH为视频流传输提供了一种高效、便捷的传送方式,特别适用于视频直播、点播、多屏显示等业务。随着DASH标准的逐渐完善,基于HTTP的网络视频流传输必将具有更加广泛的应用前景。
