Results 111 to 120 of about 4,642 (171)

[Interpretation of the "Expert consensus on the management of neonatal parenteral nutrition (2025)"]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Lin XZ, Zhang R, Chang YM, Li ZH, Liu XH, Bei F, Shen W, Tong XM, Chen C.   +8 more
europepmc   +1 more source

黄土高原坡面侵蚀—沉积—搬运过程研究

, 2002
降雨过程中 ,侵蚀、沉积、搬运过程随地随时发生。至今为止 ,许多研究者对坡面侵蚀、沉积、搬运过程进行了大量研究 ,取得了丰富的研究成果 ,但如何定量描述坡面侵蚀、沉积、搬运过程的问题仍没有解决。坡面侵蚀、沉积、搬运过程的研究是建立具有物理过程的侵蚀预报方程的基础。本研究利用双土槽径流小区的人工模拟降雨试验 ,对坡面侵蚀、沉积、搬运过程和上坡来水来沙对坡下方侵蚀过程的影响进行了研究。结果表明 :当坡面以片蚀为主时 ,上方来水来沙的变化可使坡下方的侵蚀过程由以侵蚀—沉积为主转化为以侵蚀 ...
肖培青, 郑粉莉, 高学田
core  

[Efficacy and safety of inhaled salbutamol sulfate combined with beclomethasone dipropionate in children with bronchial asthma: a randomized controlled study]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Chen CZ, Yang Q.
europepmc   +1 more source

Effect of Rainfall Intensity on Sediment Yield and Infiltration on Stony Soils

, 2011
通过室内模拟降雨研究降雨强度对含砾石土壤产沙及入渗的影响。结果表明:整个降雨过程中,60mm/h的降雨强度下,产沙率变化相对平稳,90mm/h和120mm/h的降雨强度下,土壤产沙率的变化均因为有细沟而产生波动,120mm/h的降雨强度下,细沟出现的时间较90mm/h的降雨强度提前了5～20min;降雨强度的增加导致土壤总产沙量也显著增加,当降雨强度从90mm/h增加到120mm/h时,总产沙量的增加量是降雨强度从60mm/h增加到90mm/h时总产沙量增加量的0.83～2.82倍;随着降雨强度的增加 ...
吴冰, 朱元骏, 邵明安
core  

[Advances in clinical pharmacotherapy for neonatal <i>Ureaplasma urealyticum</i> infection]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Cai BB, Chen FF, Luo F.
europepmc   +1 more source

Benefit and Characteristics of Grass-Shrub Vegetation for Reducing Soil Erosion in Loess Hilly Region

, 2003
利用人工模拟降雨 ,对白羊草和铁杆蒿草地 ,柠条和沙棘灌木林地以及对照区 (油松林地、裸地和农地 )的产沙及其特征进行试验研究。结果表明 ,影响侵蚀产沙的主要因子有下垫面、坡度、雨强和植被盖度等。草灌植被具有良好的保持土壤功能。不同地类产沙量大小依次为乔木林地 <灌木林地 <草地 <裸地 <农地 ,其宏观产沙比为 1∶2∶ 3∶ 5 0∶ 15 0 ,其产沙比视雨强和坡度而有变化。陡坡农地是侵蚀产沙的主要来源 ,退耕还林还草是保持水土和减少泥沙的有效措施 ...
吴钦孝, 赵鸿雁, 韩冰
core  

[Guideline for the diagnosis and treatment of chronic myeloid leukemia in China (2025)]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Chinese Society of Hematology, Chinese Medical Association.   +1 more
europepmc   +1 more source

[Predictive value of ultrasound-derived quantitative indicators of umbilical cord hypercoiling and hemodynamic parameters for adverse pregnancy outcomes]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Tan X, Zhou Q, Yuan H, Hou D, Zhu Y, Yao R.   +5 more
europepmc   +1 more source

[Research progress in the application of molecular imprinting technology in catalysis]. [PDF]

Se Pu
Ye WM, He DC, Cui XJ, Ma HW, Qian B, Shi F.   +5 more
europepmc   +1 more source

[Chemotherapy-free induction therapy for a critically ill pregnant woman with Philadelphia chromosome-positive acute lymphoblastic leukemia: a case report and literature review]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Gao M, Xie Y, Liu ZY, Liang PQ, Liu LM, Yin J, Wang D, Han B, Qiu HY, Fu JH, Wu DP.   +10 more
europepmc   +1 more source