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Ultrathin Al Oxide Seed Layer for Atomic Layer Deposition of High-κ Al2O3 Dielectrics on Graphene 认领
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作者 杨航 陈卫 +6 位作者 李铭洋 熊峰 王广 张森 邓楚芸 彭刚 秦石乔 《中国物理快报:英文版》 SCIE CAS CSCD 2020年第7期80-85,共6页
Due to the lack of surface dangling bonds in graphene,the direct growth of high-κ films via atomic layer deposition(ALD) technique often produces the dielectrics with a poor quality,which hinders its integration in m... Due to the lack of surface dangling bonds in graphene,the direct growth of high-κ films via atomic layer deposition(ALD) technique often produces the dielectrics with a poor quality,which hinders its integration in modern semiconductor industry.Previous pretreatment approaches,such as chemical functionalization with ozone and plasma treatments,would inevitably degrade the quality of the underlying graphene.Here,we tackled this problem by utilizing an effective and convenient physical method.In detail,the graphene surface was pretreated with the deposition of thermally evaporated ultrathin Al metal layer prior to the Al2O3 growth by ALD.Then the device was placed in a drying oven for 30 min to be naturally oxidized as a seed layer.With the assistance of an Al oxide seed layer,pinhole-free Al2O3 dielectrics growth on graphene was achieved.No detective defects or disorders were introduced into graphene by Raman characterization.Moreover,our fabricated graphene topgated field effect transistor exhibited high mobility(~6200 cm2V-1s-1) and high transconductance(~117 μS).Thin dielectrics demonstrated a relative permittivity of 6.5 over a large area and a leakage current less than1.6 p A/μm2.These results indicate that Al oxide functionalization is a promising pathway to achieve scaled gate dielectrics on graphene with high performance. 展开更多
关键词 BONDS utilizing CONVENIENT
Non-Born-Oppenheimer study of the muonic molecule ion 4Heμ^+ 认领
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作者 杨航 吴孟山 +3 位作者 张屹 史庭云 Kalman Varga 张俊义 《中国物理B:英文版》 SCIE EI CAS CSCD 2020年第4期226-231,共6页
Accurate non-Born-Oppenheimer variational calculations of all bound states of the positive muon molecular ion 4Heμ^+ have been performed using explicitly correlated Gaussian functions in conjunction with the global v... Accurate non-Born-Oppenheimer variational calculations of all bound states of the positive muon molecular ion 4Heμ^+ have been performed using explicitly correlated Gaussian functions in conjunction with the global vectors.All the energies obtained are accurate in the order of 10-6 Hartree(1 Hartree=27.2114 eV).Compared with the binding energies obtained from calculations based on the Born-Oppenheimer potential with the mass-weighted adiabatic corrections(Chem.Phys.Lett.110487(1984)),the largest relative deviation is up to 15%.By analyzing the average interparticle distances and possibility distributions of interparticle distances of this system,it is confirmed that the Born-Oppenheimer approximation is reasonable for this system and that 4Heμ^+ can be regarded as a system of positive muon bound to a slightly distorted helium atom. 展开更多
关键词 positive MUON VARIATIONAL calculation explicitly CORRELATED GAUSSIAN
Single-particle space-momentum angle distribution effect on two-pion HBT correlation in high-energy heavy-ion collisions 认领
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作者 杨航 冯启春 +2 位作者 任延宇 张景波 霍雷 《中国物理C:英文版》 SCIE CAS CSCD 2020年第5期78-86,共9页
We analyze the transverse momentum dependence of HBT radii in relativistic heavy-ion collisions using several source models.Results indicate that the single-particle space-momentum angle distribution plays an importan... We analyze the transverse momentum dependence of HBT radii in relativistic heavy-ion collisions using several source models.Results indicate that the single-particle space-momentum angle distribution plays an important role in the transverse momentum dependence of HBT radii.In a cylinder source,we use several formulas to describe the transverse momentum dependence of HBT radii and the single-particle space-momentum angle distribution.We also make a numerical connection between them in the transverse plane. 展开更多
关键词 HBT RADII transverse MOMENTUM dependence space-momentum ANGLE distribution
逆向热致相分离法聚醚砜/磺化聚砜平板膜的制备及性能 认领
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作者 杨行 刘圣慧 +5 位作者 冀世锋 邢云青 高春梅 贾磊 陈静 张心良 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2020年第6期15-22,共8页
采用逆向热致相分离(RTIPS)法制备亲水性聚醚砜(PES)/磺化聚砜(SPSF)平板膜。通过扫描电子显微镜、傅里叶变换红外光谱仪、纯水通量、牛血清蛋白(BSA)截留率、水接触角和长期运行测试研究了SPSF含量和不同凝胶浴温度对PES/SPSF平板膜性... 采用逆向热致相分离(RTIPS)法制备亲水性聚醚砜(PES)/磺化聚砜(SPSF)平板膜。通过扫描电子显微镜、傅里叶变换红外光谱仪、纯水通量、牛血清蛋白(BSA)截留率、水接触角和长期运行测试研究了SPSF含量和不同凝胶浴温度对PES/SPSF平板膜性能和结构的影响。结果表明,SPSF和PES可以成功混合。非溶剂致相分离(NIPS)法制备的PES/SPSF平板膜呈致密皮层和指状截面结构,而RTIPS法制备的PES/SPSF膜具有均匀多孔表面和海绵状结构。RTIPS法PES/SPSF膜的纯水通量和BSA截留率均高于NIPS法。静态水接触角随SPSF的增加而减小。RTIPS法PES/SPSF膜在2%SPSF时获得最佳渗透性能,其纯水通量和BSA截留率分别为967 L/(m^2·h)和79%。 展开更多
关键词 聚醚砜 磺化聚砜 亲水改性 平板膜 逆向热致相分离法
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The Compressible Navier-Stokes Equations with Weak Viscosity and Heat Conductivity 认领
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作者 Wan Zhang Hang Yang Liping Liu 《美国计算数学期刊(英文)》 2019年第2期32-47,共16页
It is well known that the full compressible Navier-Stokes equations with viscosity and heat conductivity coefficients of order of the Knudsen number ò>0 can be deduced from the Boltzmann equation via the Chapm... It is well known that the full compressible Navier-Stokes equations with viscosity and heat conductivity coefficients of order of the Knudsen number ò>0 can be deduced from the Boltzmann equation via the Chapman-Enskog expansion. In this paper, we carry out the rigorous mathematical study of the compressible Navier-Stokes equation with the initial-boundary value problems. We construct the existence and most importantly obtain the higher regularities of the solutions of the full compressible Navier-Stokes system with weak viscosity and heat conductivity in a general bounded domain. 展开更多
关键词 COMPRESSIBLE NAVIER-STOKES System Energy Estimate the HELMHOLTZ Decomposition ELLIPTIC ESTIMATES the GALERKIN Method
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Influence of Coating Layer on Acoustic Wave Propagation in a Random Complex Medium with Resonant Scatterers 认领
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作者 杨杭 张欣 +2 位作者 郭建华 吴福根 姚源卫 《中国物理快报:英文版》 SCIE CAS CSCD 2019年第8期60-64,共5页
We investigate the influence of coating layer on acoustic wave propagation in a dispersed random medium consisting of coa.ted fibers.In the strong-scattering regime, the characteristics of wave scattering resonances a... We investigate the influence of coating layer on acoustic wave propagation in a dispersed random medium consisting of coa.ted fibers.In the strong-scattering regime, the characteristics of wave scattering resonances are found to evolve regularly with the properties of the coating layer.By theoretical calculation,frequency gaps are found in acoustic excitation spectra in a random medium.The scattering cross section results present the evolution of scattering resonances with the properties of the coating layer,which offers a good explanation for the change of the frequency gaps.The velocity of the propagation quasi-mode is also shown to depend on the filling fraction of the coating layer.We use the generalized coherent potential-approximation approach to solve acoustic wave dispersion relations in a complicated random medium consisting of coating-structure scatterers.It is shown that our model reveals subtle changes in the behavior of the acoustic wave propagating quasi-modes. 展开更多
关键词 INFLUENCE PROPAGATION RANDOM COMPLEX MEDIUM
以Li1-xNax为负极的锂空气电池 认领 被引量:1
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作者 王桃环 杭阳 张大伟 《合肥工业大学学报:自然科学版》 CAS 北大核心 2018年第10期1420-1424,共5页
文章以简单的研磨法制备钠掺杂Li1-xNax样品,并将其用于锂-空气电池负极来测试其性能。结果表明:该类型电池在其结构和催化剂上没有进行优化的情况下,具有较高的首次充放电容量和较低的过电压(0.8V),表现出了较好的电化学性能;在截止容... 文章以简单的研磨法制备钠掺杂Li1-xNax样品,并将其用于锂-空气电池负极来测试其性能。结果表明:该类型电池在其结构和催化剂上没有进行优化的情况下,具有较高的首次充放电容量和较低的过电压(0.8V),表现出了较好的电化学性能;在截止容量为500 mA·h/g时,可以稳定循环230次。该新型锂-空气电池具有较好的反应动力学行为。此外,该文还分析了其性能得到提高的原因。 展开更多
关键词 钠掺杂 Li1-xNax负极 锂空气电池 电化学性能 反应机理
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Investigation and analysis of the characteristics and drug sensitivity of bacteria in skin ulcer infections 认领 被引量:2
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作者 Hang Yang Wen-Sheng Wang +3 位作者 Yang Tan Dao-Jun Zhang Jin-Jin Wu Xia Lei 《中华创伤杂志:英文版》 CAS CSCD 2017年第4期194-197,共4页
皮溃疡是影响病人健康和生活的质量的疾病的一种普通类型,并且细菌的感染增加细菌的文化的结果从 2011 年 1 月在我们的医院从皮溃疡的 110 个盒子的表面取样了到 2012 年 12 月的它学习收集了的在场的 management.MethodsThe 的困难... 皮溃疡是影响病人健康和生活的质量的疾病的一种普通类型,并且细菌的感染增加细菌的文化的结果从 2011 年 1 月在我们的医院从皮溃疡的 110 个盒子的表面取样了到 2012 年 12 月的它学习收集了的在场的 management.MethodsThe 的困难。我们分析了溃疡表面细菌的成分比率,变化总体上传染的细菌和为普通细菌测试的药敏感的结果。另外,皮肤溃疡的细菌的感染的特征是 110 取样的 summarized.ResultOf, 90 个孤立的细菌是有教养的。61 是克否定的细菌,主要包括的 Pseudomonas aeruginosa, Klebsiella pneumoniae, Enterobacter 下水道和 Escherichia coli。另外, 23 孤立是克积极的细菌,主要包括的葡萄球菌 aureus 和肠球菌 faecalis。在 2012 的一种否定细菌的文化的概率在 2011 是比那显著地低的(16.7% 对 40.0% , p ?<? 0.01 ) 。而且, P. 的概率 ? 在 2012 的 aeruginosa 感染在 2011 比那显著地高(31.7% 对 14.0% , p ?<? 0.01 ) 。P。aeruginosa 对七通常使用的抗菌素抵抗。两 K.? pneumoniae 和 E.? coli 有更高的抵抗到氨比西林。E.? 下水道不对 piperacillin/tazobactam 敏感。Acinetobacter baumannii 对所有测试的药抵抗。S.? aureus, E。faecalis 和葡萄球菌 epidermidis 有高抵抗到 clindamycin。有另外的药抵抗反映皮肤的更高的率细菌的 resistance.ConclusionSkin 细菌的抵抗率高。克否定的细菌逐渐地说明多数,和 P。aeruginosa 成为最重要的皮肤感染病原体。皮肤溃疡的细菌的感染的这些特征为指导抗菌素的选择,更好控制皮肤溃疡的感染并且加速皮肤溃疡愈合提供一本重要参考书。 展开更多
关键词 细菌感染 皮肤溃疡 药敏试验 PNEUMONIAE PSEUDOMONAS 金黄色葡萄球菌 革兰氏阴性菌 阴沟肠杆菌
Novel high- with low specific on-resistance high voltage lateral double-diffused MOSFET 认领
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作者 吴丽娟 章中杰 +3 位作者 宋月 杨航 胡利民 袁娜 《中国物理B:英文版》 SCIE EI CAS CSCD 2017年第2期382-386,共5页
A novel voltage-withstand substrate with high-K(HK, k > 3.9, k is the relative permittivity) dielectric and low specific on-resistance(Ron,sp) bulk-silicon, high-voltage LDMOS(HKLR LDMOS)is proposed in this paper. ... A novel voltage-withstand substrate with high-K(HK, k > 3.9, k is the relative permittivity) dielectric and low specific on-resistance(Ron,sp) bulk-silicon, high-voltage LDMOS(HKLR LDMOS)is proposed in this paper. The high-K dielectric and highly doped interface N+-layer are made in bulk silicon to reduce the surface field drift region. The high-K dielectric can fully assist in depleting the drift region to increase the drift doping concentration(Nd) and reshape the electric field distribution. The highly doped N+-layer under the high-K dielectric acts as a low resistance path to reduce the Ron,sp. The new device with the high breakdown voltage(BV), the low Ron,sp, and the excellent figure of merit(FOM = BV~2/Ron,sp) is obtained. The BV of HKLR LDMOS is 534 V, Ron,sp is 70.6 m?·cm~2, and FOM is 4.039 MW·cm~(-2). 展开更多
关键词 MOSFET 高压 双扩散 LDMOS 高K电介质 比阻 相对介电常数 高介电常数
Isolation and complete genome sequence of a novel virulent mycobacteriophage, CASbig 认领
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作者 Tieshan Teng Junping Yu +1 位作者 Hang Yang Hongping Wei 《中国病毒学:英文版》 CAS CSCD 2015年第1期76-79,共4页
Dear Editor,Bacteriophages are powerful tools for investigating and manipulating their hosts(Fernandes et al.,2014).This holds particularly true for mycobacteriophages,which have facilitated the development of mycobac... Dear Editor,Bacteriophages are powerful tools for investigating and manipulating their hosts(Fernandes et al.,2014).This holds particularly true for mycobacteriophages,which have facilitated the development of mycobacterial genetic systems and have generated tools for the clinical 展开更多
关键词 POWERFUL holds PHAGE LYSIN CASbig similarity http Genome ACCESSION packaging
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Molecular dissection of phage lysin PlySs2: integrity of the catalytic and cell wall binding domains is essential for its broad lytic activity 认领
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作者 Yanling Huang Hang Yang +1 位作者 Junping Yu Hongping Wei 《中国病毒学:英文版》 CAS CSCD 2015年第1期45-51,共7页
The novel phage lysin PlySs2, is reported to be highly active against various bacteria, including staphylococci, streptococci and Listeria. However, the molecular mechanisms underlying its broad lytic spectrum remain ... The novel phage lysin PlySs2, is reported to be highly active against various bacteria, including staphylococci, streptococci and Listeria. However, the molecular mechanisms underlying its broad lytic spectrum remain to be established. In the present study, the lytic activity of the catalytic domain(CD, PlySc) and binding specificity of the cell wall binding domain(CBD, PlySb) of PlySs2 were examined. Our results showed that PlySc alone maintains very limited lytic activity. Enhanced green fluorescent protein(EGFP)-fused PlySb displayed high binding affinity to the streptococcal strains tested, including S.suis, S.dysgalactiae, and S.agalactiae, but not staphylococci, supporting its utility as a good CBD donor for streptococcal-targeted lysin engineering. EGFP-fused intact PlySs2 similarly displayed high affinity for streptococci, but not staphylococci. Notably, four truncated PlySb fragments showed no binding capacity. These findings collectively indicate that integrity of the PlySc and PlySb domains is an essential determinant of the broad lytic activity of PlySs2. 展开更多
关键词 STREPTOCOCCI LYSIN cell wall binding DOMAIN CATALYTIC DOMAIN bacterial resistance
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分布式发电对继电保护的影响 认领 被引量:7
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作者 杭洋 黄伟 《现代电子技术》 2010年第16期 195-197,201,共4页
随着新能源的应用与发展,以新能源发电为基础的分布式发电技术有着高效、节能,缓解不可再生能源紧缺的优点,但也出现了一些新的问题,如电能质量、电网控制等,分布式发电对配网原有的继电保护产生的影响尤其巨大。首先介绍分布式发电对... 随着新能源的应用与发展,以新能源发电为基础的分布式发电技术有着高效、节能,缓解不可再生能源紧缺的优点,但也出现了一些新的问题,如电能质量、电网控制等,分布式发电对配网原有的继电保护产生的影响尤其巨大。首先介绍分布式发电对继电保护的几点影响,然后总结了一些解决方法,最后讨论了一些可行的方法,并分析了用自适应继电保护对含有分布式电源的配电网进行整定计算的方法。 展开更多
关键词 新能源 分布式发电 继电保护 电网控制 自适应保护
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空调负荷计算的神经网络模型 认领 被引量:1
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作者 张扬 曹亮 王彬 《制冷与空调(四川)》 2006年第1期 85-87,共3页
本文提出了在空调负荷计算中引入神经网络模型的思想,介绍了神经网络的概念、原理及其在空调冷负荷计算中的应用方法。
关键词 空调冷负荷 神经网络 MATLAB工具箱
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Research on Personal Credit Risk Assessment Model Based on Instance-Based Transfer Learning 认领
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作者 Maoguang Wang Hang Yang 《智能科学国际期刊(英文)》 2021年第1期44-55,共12页
Personal credit risk assessment is an important part of the development of financial enterprises. Big data credit investigation is an inevitable trend of personal credit risk assessment, but some data are missing and ... Personal credit risk assessment is an important part of the development of financial enterprises. Big data credit investigation is an inevitable trend of personal credit risk assessment, but some data are missing and the amount of data is small, so it is difficult to train. At the same time, for different financial platforms, we need to use different models to train according to the characteristics of the current samples, which is time-consuming. <span style="font-family:Verdana;">In view of</span><span style="font-family:Verdana;"> these two problems, this paper uses the idea of transfer learning to build a transferable personal credit risk model based on Instance-based Transfer Learning (Instance-based TL). The model balances the weight of the samples in the source domain, and migrates the existing large dataset samples to the target domain of small samples, and finds out the commonness between them. At the same time, we have done a lot of experiments on the selection of base learners, including traditional machine learning algorithms and ensemble learning algorithms, such as decision tree, logistic regression, </span><span style="font-family:Verdana;">xgboost</span> <span style="font-family:Verdana;">and</span><span style="font-family:Verdana;"> so on. The datasets are from P2P platform and bank, the results show that the AUC value of Instance-based TL is 24% higher than that of the traditional machine learning model, which fully proves that the model in this paper has good application value. The model’s evaluation uses AUC, prediction, recall, F1. These criteria prove that this model has good application value from many aspects. At present, we are trying to apply this model to more fields to improve the robustness and applicability of the model;on the other hand, we are trying to do more in-depth research on domain adaptation to enrich the model.</span> 展开更多
关键词 Personal Credit Risk Big Data Credit Investigation Instance-Based Transfer Learning
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微脉冲激光阈值下治疗黄斑软性玻璃膜疣和玻璃膜疣性DPED的形态学改变 认领
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作者 陈青山 陈璐 +3 位作者 赵霞 陈妙虹 杨宇航 李志 《国际眼科杂志》 CAS 北大核心 2020年第6期934-939,共6页
目的:分析阈值下微脉冲激光(SMLT)治疗黄斑软性玻璃膜疣与玻璃膜疣性色素上皮脱离(DPED)的形态学改变。方法:回顾性横断面病例系列研究。2016-08/2018-10临床确诊的黄斑软性玻璃膜疣与DPED 14例20眼纳入研究,用577 nm黄激光对黄斑软性... 目的:分析阈值下微脉冲激光(SMLT)治疗黄斑软性玻璃膜疣与玻璃膜疣性色素上皮脱离(DPED)的形态学改变。方法:回顾性横断面病例系列研究。2016-08/2018-10临床确诊的黄斑软性玻璃膜疣与DPED 14例20眼纳入研究,用577 nm黄激光对黄斑软性玻璃膜疣与DPED进行SMLT治疗。观察黄斑软性玻璃膜疣与DPED治疗后BCVA,FAF与SD-OCT测量的纵径,横径,病灶面积的改变。结果:黄斑软性玻璃膜疣治疗后BCVA与基线比较,差异无统计学意义(P=0.260),DPED治疗后BCVA与基线比较无统计学差异(P=0.736)。黄斑软性玻璃膜疣与DPED横径,纵径,截面积治疗后6mo与基线比较,黄斑软性玻璃膜疣纵径高度降低,截面积缩小,与基线比较有显著性差异(P=0.008;0.034)。DPED治疗前后横径,纵径高度与截面积与基线比较无统计学差异。结论:SMLT治疗黄斑软性玻璃膜疣与DPED后BCVA没有下降。黄斑软性玻璃膜疣纵径高度与截面积均较治疗前下降。DPED与基线比较无明显改变。结果表明SMLT治疗黄斑软性玻璃膜疣是有效的,但短期DPED疗效不明显,对黄斑软性玻璃膜疣与DPED视力无损害,但仍需要前瞻性、对照、大样本及长期随访观察。 展开更多
关键词 黄斑玻璃膜疣 玻璃膜疣性色素上皮脱离 阈值下微脉冲激光 自发荧光
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大昌矿业上向分层采矿法工艺优化研究 认领
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作者 周伟永 黄杨 《现代矿业》 CAS 2020年第5期67-69,73共4页
在矿山开采中,上向分层充填采矿法应用较为广泛,传统的上向分层充填采矿法每班作业人员进入采场进行凿岩落矿,采场顶板局部稳固性难以保证,大块率较高,需要进行二次破碎,工作效率低,施工成本高。为克服上述问题,采用逐层挤压、光面爆破... 在矿山开采中,上向分层充填采矿法应用较为广泛,传统的上向分层充填采矿法每班作业人员进入采场进行凿岩落矿,采场顶板局部稳固性难以保证,大块率较高,需要进行二次破碎,工作效率低,施工成本高。为克服上述问题,采用逐层挤压、光面爆破采矿方法,再进行采场顶板光面爆破。这种方法大块率少,爆破成本低,采场顶板较为平整,减少对围岩的扰动,保持围岩的稳定,作业人员在采场内施工较为安全。 展开更多
关键词 上向分层 逐层挤压 光面爆破
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2000年与2010年太原市城乡中小学生体质状况比较 认领
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作者 杭洋 《世界最新医学信息文摘》 2020年第100期323-324,共2页
目的探究分析太原市2000年与2010年7-18岁城乡中小学生体质状况的差别,并制定相应对策改善学生体质状况.方法对比分析太原市2000年和2010年7-18岁中小学生体质健康调研结果.结果7-18岁这个年龄段的城乡学生的体重、身高、胸围在2000-201... 目的探究分析太原市2000年与2010年7-18岁城乡中小学生体质状况的差别,并制定相应对策改善学生体质状况.方法对比分析太原市2000年和2010年7-18岁中小学生体质健康调研结果.结果7-18岁这个年龄段的城乡学生的体重、身高、胸围在2000-2010年这10年间均呈上升趋势,且乡村学生增长快于城市学生.太原市7-18岁城市男女生在握力、13-18岁男女生在立定跳远、13-18岁城市男女生在耐力上略有提高外,其余项目均呈下降趋势,相较于乡村学生城市学生下降更快.结论面对现阶段学生体质状况现状,相关部门应立即提出相应的对策,提高城乡学生身体素质,改善学生体质状况. 展开更多
关键词 体质 运动活动 对比研究 学生
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低压故障指示器的应用 认领
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作者 杭泱 《电工技术》 2020年第23期50-51,共2页
探讨了低压故障指示器建设及应用过程中存在的问题,并探究了相应的解决措施。
关键词 智能化 低压故障指示器 实用化应用
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变应性鼻炎患者血清IL-34水平及与血清炎症因子的相关性 认领 被引量:6
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作者 王周美 李勇 杨杭 《中国现代医学杂志》 CAS 2019年第18期82-85,共4页
目的探讨变应性鼻炎(AR)患者血清白细胞介素-34(IL-34)水平及其与血清白细胞介素-4(IL-4)、白细胞介素-6(IL-6)及白细胞介素-10(IL-10)水平的关系,阐明IL-34在AR中的临床意义。方法选取2018年1月-2018年12月在江山市人民医院耳鼻喉科治... 目的探讨变应性鼻炎(AR)患者血清白细胞介素-34(IL-34)水平及其与血清白细胞介素-4(IL-4)、白细胞介素-6(IL-6)及白细胞介素-10(IL-10)水平的关系,阐明IL-34在AR中的临床意义。方法选取2018年1月-2018年12月在江山市人民医院耳鼻喉科治疗的100例AR患者作为AR组,择选同期100例健康体检者作为对照组。采用酶联免疫吸附试验测定血清IL-34、IL-4、IL-6及IL-10水平。结果AR组血清IL-34、IL-4及IL-6水平高于对照组(P<0.05),而IL-10水平低于对照组(P<0.05)。与治疗前比较,AR患者治疗后血清IL-34、IL-4及IL-6水平降低(P<0.05),而血清IL-10水平升高(P<0.05)。AR患者血清IL-34水平与血清IL-4、IL-6水平呈正相关(r=0.526和0.573,均P=0.000),与IL-10水平呈负相关(r=-0.558,P=0.000)。结论AR患者血清IL-34水平升高,IL-34通过参与炎症反应参与其发病过程,对AR的诊断及疗效评价具有一定的价值。 展开更多
关键词 鼻炎 白细胞介素类 诊断 治疗结果 评价研究
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陕西省新型农业体系发展现状分析及对策 认领 被引量:1
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作者 李倩 郝双奎 +4 位作者 贾凯峰 聂耸 薛楠 曹三潮 张养利 《黑龙江农业科学》 2019年第5期130-136,共7页
为促进陕西省新型农业发展,形成系统长效的服务体系。对陕西省渭南市近年来发展起来的专业大户、家庭农场、农民专业合作社、农业产业化组织和社会化服务机构等五大类新型农业体系的发展生产现状进行调研分析,调研中发现在经营主体自身... 为促进陕西省新型农业发展,形成系统长效的服务体系。对陕西省渭南市近年来发展起来的专业大户、家庭农场、农民专业合作社、农业产业化组织和社会化服务机构等五大类新型农业体系的发展生产现状进行调研分析,调研中发现在经营主体自身、农业产业结构以及产业服务体系等方面存在一些不足之处,根据以上存在的三方面问题提出针对性的建议,以期能够为新型农业经营体系的后续发展提供一定参考。 展开更多
关键词 新型农业体系 发展 对策
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