ri相关论文
目的:探讨子宫动脉血流超声参数测定用于早期先兆流产预后评估的价值。方法:回顾性分析20198年8月-2021年3月96例早期先兆流产患者......
目的:探究超声弹性成像参数联合收缩期峰值流速(PSV)、阻力指数(RI)、ADLER血流分级对甲状腺良性、恶性结节鉴别诊断效能比较.方法......
目的:探讨影响四肢主要动脉损伤修复术后早期肢体血运的术前危险因素，以期为预防动脉修复术后发生肢体血运障碍提供线索。方法:回顾......
目的:探讨体外循环下行心脏手术的5 kg以下先天性心脏病（congenital heart disease，CHD）患儿手术死亡的相关危险因素。方法:收集2017......
自然灾害如台风会带来暴风雨与破坏,从而增加疾病传播的风险.疾病和瘟疫可能由与台风、暴雨等自然现象有关的环境因素直接引起,也......
Predicting roof displacement of roadways in underground coal mines using adaptive neuro-fuzzy infere
Due to the rapid industrialization and the development of the economy in each country, the demand for energy is increasi......
Weda,a new genus with two new species of Euphorbiaceae-Crotonoideae from Halmahera(North Maluku,Indo
During the environmental impact study for a proposed nickel mine near Weda Bay on Halmahera in North Moluccas (Maluku Ut......
Oncological results, functional outcomes and health-related quality-of-life in men who received a ra
Health-related quality-of-life (HRQOL) after a radical prostatectomy (RP) or external beam radiation therapy (EBRT) has ......
本研究选取了山东省临沂市唯一的饮用水水源地云蒙湖作为研究对象,对其表层湖水以及沉积物中的重金属进行特征分析,并评价其污染存......
Transcription factors(TFs)orchestrate the regulation of cellular gene expression and thereby determine cell functionalit......
Planthoppers are the most notorious rice pests,because they transmit vari-ous rice viruses in a persistent-propagative m......
目的探讨妊娠中晚期女性甲状腺血清学指标水平与甲状腺超声测量参数间的相关性。方法收集82例中晚期妊娠合并甲状腺功能减退(以下......
Diamond Model Based Analysis on Cooperation between of Poverty Alleviation and Emission Reduction in
2020 is the year of decisive stage for building a well-off society in an all-round way.On the winter vacation of 2020,we......
BACKGROUND Coronary artery disease(CAD)is one of the leading causes of death and disease burden in China and worldwide.A......
Heavy metals in sediments of Yellow Sea and East China Sea: Chemical speciation,distribution,influen
Metal species and the degree of environmental pollution are related to the hydrogen sulfide(H2S),an important product of......
China\s policy on ecological compensation(eco-compensation)in watershed ecosystems is of economic,social and environmen......
目的研究20世纪90年代初(1991-1993年)我国地表水和地下水中氚浓度的水平、分布和变化.方法地表水样品中387个采自全国64条江、河,......
洪水控制系统风险评估是为洪水风险管理和决定的一项有效措施。为了做更好的洪水风险决定并且从而改善，聚会和经济受益，洪水控制风险......
In this study,we used global analytical modeswfny(GAMs)to develop a rigid-flexible dynamic modeling approach for spacecr......
Heat flow in the Earth, from its hot interior to its relatively cool exterior, is the primary energy flow responsible fo......
Director of China’s National Tourism Administration Shao Qiwei and U.S.Secretary of Commerce Carlos M. Gutierrez signed......
甲状腺具有选择性吸收与浓集碘的特性。其浓集之程度可反映出甲状腺的功能状态,因此,临床医学工作者基于这种特性,常应用放射性碘......
妊娠合并糖尿病妇女,妊娠第一周血糖控制很重要,为此,1980～1991年作者进行了胰岛素(RI)泵控制血糖的研究,81例RI依赖型糖尿病孕妇......
Research on 3D Distribution of Meandering River Sand Body Using Sedimentary Facies Method and 3D Geo
Sedimentary facies study is an important method in describing the property and distribution of reservoir. 3D geological ......
PREDICTION OF THE GRAIN SIZE OF SUSPENDED SEDIMENT:IMPLICATIONS FOR CALCULATING SUSPENDED SEDIMENT C
Collection of samples of suspended sediment transported by streams and rivers is difficult and expensive. Emerging techn......
近年来，哮喘易感基因的研究已成为国际热点，研究提示有１０余个基因与哮喘相关，其中ＦＣＲＩβ基因颇受瞩目。Ｓｈｉｒａｋａｗａ等［１］研究表明英国人中Ｆｃ ＲＩβ基因第六外显......
The meander channel is one of the most common channel patterns in nature.The characteristics of the flow and sediment in......
What’s a beluga whale’s favorite trick?Blow bubbles that look like a halo(光环,光晕).This whale has become a sensation......
The number of least degrees of freedom required for a polarization controller to transform any state
Using two typical types of polarization controller,this paper analyses theoretically and experimentally the fact that it......
As an important part in forest ecosystems, the arthropod communities in the forest litter are closely related to forest ......
Synthesis, Structure of a Symmetrically Substituted Stilbene with Strong Two-photon Absorption and U
Efficient Ti-catalyzed reductive coupling methodology was first employed to synthesize the symmetrical bis-donor stilben......
Regeneration and Tree Species Diversity of Sitakund Botanical Garden and Eco-Park,Chittagong,Banglad
Anthropogenic disturbances influence plant regeneration and species diversity, which impact the conservation status of p......
Overland flows on hillslopes due to rainfall excess are numerically simulated with a simplified strip microtopography wh......
A world-shaking event occurred inHubei Province, China in 1978. Inthe suburbs of Suizhou, Chinesearchaeologists found a......
Heavy metals in sediments of Yellow Sea and East China Sea: Chemical speciation, distribution, influ
Metal species and the degree of environmental pollution are related to the hydrogen sulfide (H 2 S), an important produc......
目的分析影响经内镜逆行胰胆管造影(ERCP)治疗胆总管结石后出血严重程度的相关因素。方法回顾性分析56例胆总管结石ERCP术后出血患......
目前冠状动脉支架置入术后一年内需要行非心脏手术者数量不断增多，非心脏手术为停用抗血小板治疗的一个重要原因。术前停用抗血小板......
【目的】探讨分析动脉瘤性蛛网膜下腔出血（aSAH）并发脑血管痉挛（CVS）的相关危险因素，为临床预防aSA H后CVS的发生提供临床参考。【方法......
Applicability of high-temperature cooling systems in different European countries from the view of t
Due to the different approaches in determining the ventilation airflow rate per person for workspaces, where high-temper......
【摘要】目的：比较分析二维超声及实时三维超声检查对婴幼儿血管瘤的诊断价值。方法：于2018年8月至2020年7月选取确诊为血管瘤的婴幼......
TD-LTE下行使用MIMO和64 QAM技术来提升下行速率,探索下行MIMO参数的门限设置对TD-LTE下载速率的影响对网络质量的提升意义重大。......
为研究大生物量树种对Cd污染土壤的修复效果,以毛白杨、馒头柳、臭椿、构树、榆树、白蜡、国槐等7种天津市常用绿化树种为材料,开......
