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腹腔镜带线直针单隧道疝囊高位结扎治疗小儿腹股沟斜疝427例

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岭南现代临床外科 2017年第6期17卷 696-698页

作者：毛建雄肖东徐皓中崔雄俭张翅储冬冬王秀良深圳市儿童医院普外一科广东深圳518038

目的探讨腹腔镜带线直针单隧道疝囊高位结扎治疗小儿腹股沟斜疝的价值。方法脐下脐上分别切5 mm及3 mm切口,建立气腹后置入5 mm及3 mm trocar,在疝囊颈投影的皮肤位置切1 mm切口,自该切口刺入带线疝针,疝针在腹膜外沿疝囊颈后方走行,疝... 详细信息

目的探讨腹腔镜带线直针单隧道疝囊高位结扎治疗小儿腹股沟斜疝的价值。方法脐下脐上分别切5 mm及3 mm切口,建立气腹后置入5 mm及3 mm trocar,在疝囊颈投影的皮肤位置切1 mm切口,自该切口刺入带线疝针,疝针在腹膜外沿疝囊颈后方走行,疝针通过精索血管后针尖即可穿过腹膜进入腹腔,用腹腔镜钳将疝针上的线牵拉进入腹腔足够长。将疝针沿原隧道缓慢退出,至退到腹膜外原进针垂直位置后将疝针沿疝囊颈的外侧走行,于疝囊颈后方出线处出针,将腹腔内留的线穿过疝针上方的线与疝针之间的间隙,腹腔外轻拉疝针与缝线,将腹腔内的线带出,并剪断,并分别打结,完成疝囊单隧道双线高位结扎。结果 427例中术中发现对侧鞘状突未闭218例,占单侧腹股沟斜疝患者的51.2%。单侧手术平均时间约8.5分钟,术后脐部少量渗血5例,无阴囊、腹股沟血肿等其他并发症。平均住院时间3.1天,术后312例随访3月~24月,无复发病例,未出现线结反应,术后内环处未扪及线结。结论腹腔镜带线直针疝囊单隧道高位结扎治疗小儿腹股沟斜疝疗效满意。

关键词：腹股沟斜疝腹腔镜单隧道疝囊高位结扎术

卵巢动脉血流与卵母细胞回收数量和质量的关系

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陕西医学杂志 2010年第2期39卷 153-155页

作者：杨贵忠王颖冯秀亮王丽萍闫春芳王蕴颖赵静西安市第四医院生殖医学中心西安710004 第四军医大学西京医院实验外科

目的:探讨体外受精-胚胎移植(IVF/ICSI-ET)控制性超排卵中,卵巢动脉血流与回收卵母细胞数量及其质量的关系。方法:应用前瞻性研究法,随机选择164个超排卵周期,经阴道彩色多普勒B型超声,监测月经第2天(M2)和HCG日卵巢动脉血流S,D,PI、RI... 详细信息

目的:探讨体外受精-胚胎移植(IVF/ICSI-ET)控制性超排卵中,卵巢动脉血流与回收卵母细胞数量及其质量的关系。方法:应用前瞻性研究法,随机选择164个超排卵周期,经阴道彩色多普勒B型超声,监测月经第2天(M2)和HCG日卵巢动脉血流S,D,PI、RI和S/D。分析回收卵母细胞数和成熟卵母细胞数与卵巢动脉血流之间的关系。结果:164个超排卵(COH)周期共回收卵母细胞1 714枚,其中成熟卵母细胞1 334枚。根据回收卵母细胞数量和成熟卵母细胞数量分别分成4个组,M2和HCG日,不同回收卵母细胞数4个组的PI、RI和S/D值的波动范围是一致;同样不同回收成熟卵母细胞数4个组的PI、RI和S/D值的波动范围也是一致。但是随着回收卵母细胞数或成熟卵母细胞数的增加,M2和HCG日卵巢动脉血流PI、RI和S/D逐渐降低。结果显示,M2日,当PI<0.62、RI<0.48者,超排卵后可能回收到更多的卵母细胞;而PI<0.60、RI<0.46者,超排卵后可能获得更多的成熟卵母细胞。结论:在COH周期中,卵巢动脉血流与回收卵母细胞数和成熟数密切相关;M2和HCG日,卵巢动脉血流PI、RI值可作为评估超排卵结果的有效指标。

关键词：卵巢动脉血流速度局部血流卵母细胞

Thermally stable microstructures and mechanical properties of B4C-Al composite with in-situ formed Mg（Al）B2

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Journal of Materials Science & Technology 2019年第9期35卷 1825-1830页

作者： Yangtao Zhou Yuning Zan Shijian Zheng Xiaohong Shao Qianqian Jin Bo Zhang Quanzhao wang Bolv Xiao xiuliang Ma Zongyi Ma Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Key Laboratory of Nuclear Materials and Satety Assessment Institute of Meatal ResearchChinese Academy of SciencesShengyang 110016China School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou 730050China

B4C particulate-reinforced 6061A1 composite was fabricated by powder metallurgy method. The as-rolled composite possesses high tensile strength which is comparable to that of the peak-aged 6061A1 alloy. More importantly, the microstructures and mechanical properties are thermally stable during long-term holding at elevated temperature (400℃). The microstructual contributions to the strength of the composite were discussed. Transmission electron microscopy (TEM) analysis indicates that the in-situ formed reinforcement Mg(Al)B2, as products of the interfacial reactions between B4C and the aluminum matrix, show not only good resistance to thermal coarsening but also strong pinning effect to the grain boundaries in the alloy matrix.

关键词： B4C-Al composites Thermal stability In-situ reinforcement Grain boundaries Solute segregation

Correlation analysis between the Aral Sea shrinkage and the Amu Darya River

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Journal of Arid Land 2023年第7期15卷 757-778页

作者： wang Min CHEN Xi CAO Liangzhong KURBAN Alishir SHI Haiyang WU Nannan EZIZ Anwar YUAN xiuliang Philippe DE MAEYER State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Department of Geography Ghent UniversityGhent 9000Belgium Sino-Belgian Joint Laboratory of Geo-Information Urumqi 830011China Sino-Belgian Joint Laboratory of Geo-Information Ghent 9000Belgium Research Center for Ecology and Environment of Central Asia Chinese Academy of SciencesUrumqi 830011China Jiujiang University Jiujiang 332000China Hohai University Nanjing 211100China

The shrinkage of the Aral Sea,which is closely related to the Amu Darya River,strongly affects the sustainability of the local natural ecosystem,agricultural production,and human *** this study,we used the Bayesian Estimator of Abrupt change,Seasonal change,and Trend(BEAST)model to detect the historical change points in the variation of the Aral Sea and the Amu Darya River and analyse the causes of the Aral Sea shrinkage during the 1950–2016 ***,we applied multifractal detrend cross-correlation analysis(MF-DCCA)and quantitative analysis to investigate the responses of the Aral Sea to the runoff in the Amu Darya River,which is the main source of recharge to the Aral *** results showed that two significant trend change points in the water volume change of the Aral Sea occurred,in 1961 and *** 1961,the water volume in the Aral Sea was stable,after which it began to shrink,with a shrinkage rate fluctuating around 15.21 km3/*** 1974,the water volume of the Aral Sea decreased substantially at a rate of up to 48.97 km3/a,which was the highest value recorded in this *** addition,although the response of the Aral Sea's water volume to its recharge runoff demonstrated a complex non-linear relationship,the replenishment of the Aral Sea by the runoff in the lower reaches of the Amu Darya River was identified as the dominant factor affecting the Aral Sea *** on the scenario analyses,we concluded that it is possible to slow down the retreat of the Aral Sea and restore its ecosystem by increasing the efficiency of agricultural water use,decreasing agricultural water use in the middle and lower reaches,reducing ineffective evaporation from reservoirs and wetlands,and increasing the water coming from the lower reaches of the Amu Darya River to the 1961–1973 *** measures would maintain and stabilise the water area and water volume of the Aral Sea in a state of ecological ***,this study focuses on how huma

关键词： Aral Sea shrinkage recharge runoff Amu Darya River Syr Darya River multifractal detrend cross-correlation analysis(MF-DCCA) Bayesian Estimator of Abrupt change,Seasonal change,and Trend(BEAST) Central Asia

Manipulating non-collinear antiferromagnetic order and thermal expansion behaviors in triangular lattice Mn_(3)Ag_(1-x)Sn(Ge)_(x)N

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Journal of Materiomics 2024年第2期10卷 456-462页

作者： Dongmei Hu Sihao Deng Ying Sun Kewen Shi xiuliang Yuan Shihai An Lunhua He Jie Chen Yuanhua Xia Cong wang School of Physics Beihang UniversityBeijing100191China School of Integrated Circuit Science and Engineering Beihang UniversityBeijing100191China National Key Lab of Spintronics Institute of International InnovationBeihang UniversityYuhang DistrictHangzhou311115China Spallation Neutron Source Science Center Dongguan523803China Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China Institute of Physics Chinese Academy of SciencesBeijing100190China Songshan Lake Materials Laboratory Dongguan523808China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang621999China

Magnetic materials with non-collinear spin orderings provide an outstanding platform to probe spin-tronic phenomena owing to their strong spin-orbit coupling(SOC)and unique Berry *** is thus important to obtain a non-collinear antiferromagnetic(AFM)phase at room temperature(RT).Signifi-cantly,the discovery of novel materials with nearly zero thermal expansion(ZTE)property near RT is required and pursued for avoiding thermal stress and fracture in spintronic ***,the doping of Sn(Ge)at the Ag site in the triangular lattice Mn_(3)Ag_(1-x)Sn(Ge)_(x)N compounds increases effectively the Neel point and makes the interesting non-collinearГ^(5g)AFM phase exist above *** magnetic phase diagrams withГ^(5g)phase up to 498 K were built by the combined analysis of neutron powder diffraction(NPD),magnetic measurements,electronic transport,and differential scanning calorimetry(DSC).The thermal expansion behaviors of Mn_(3)Ag_(1-x)Sn(Ge)_(x)N were modulated,and the nearly ZTE above RT was achieved in Mn_(3)Ag_(0.5)Ge_(0.5)N withinГ^(5g)AFM *** findings offer an effective way to tailor the non-collinear AFM ordering and correlated thermal expansion behavior for potential use in the emerging field of thermal stress-free magnetic chip materials.

关键词： Non-collinear magnet Antiferromagnetic spintronics Nearly zero thermal expansion Neutron powder diffraction Antiperovskite

Faceted Kurdjumov-Sachs interface-induced slip continuity in the eutectic high-entropy alloy,AlCoCrFeNi_(2.1)

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Journal of Materials Science & Technology 2021年第6期65卷 216-227页

作者： Ting Xiong Wenfan Yang Shijian Zheng Zhaorui Liu Yiping Lu Ruifeng Zhang Yangtao Zhou Xiaohong Shao Bo Zhang Jun wang Fuxing Yin Peter K.Liaw xiuliang Ma Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences72 Wenhua RoadShenyang 110016China School of Material Science and Engineering.University of Science and Technology of China Hefei 230026China Tianjin Key Laboratory of Materials Lamninating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin 300130China School of Materials Science and Engineering Beihang UniversityBeijing 100191China Center for Integrated Computational Materials Engineering(International Research Institute for Multidisciplinary Science)and Key Laboratory of High-Temperature Structural Materials 8 Coatings Technology(Ministry of Industry and Informnation Technology) Beihang UniversityBeijing 100191China Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072.China Department of Materials Science and Engineering The University of TennesseeKnoxvilleTN37996USA School of Material Science and Engineering Lanzhou University of TechnologyLanzhou 730050China

Recently,the eutectic high-entropy alloy(EHEA),AlCoCrFeNi_(2.1),can reach a good balance of strength and *** dual-phase alloy exhibits a eutectic lamellar microstructure with large numbers of ***,the role of the interfaces in plastic deformation have not been revealed *** the present work,the orientation relationship(OR)of the interfaces has been clarified as the Kurdjumov-Sachs(KS)interfaces presenting〈111〉_(B2) 〈110〉_(FCC)and {110} _(B2){111}_(FCC) independent of their *** exist three kinds of interfaces in the EHEA,namely,The dominating interface and the secondary interface are both non-slip planes and atomistic-scale faceted,facilitating the nucleation and slip transmission of the *** formation mechanism of the preferred interfaces is revealed using the atomistic geometrical analysis according to the criteria of the low interfacial energy based on the coincidence-site lattice(CSL)*** particular,the ductility of the dual-phase alloy originates from the KS interface-induced slip continuity across interfaces,which provides a high slip-transfer geometric ***,the strengthening effect can be attributed to the interface resistance for the dislocation transmission due to the mismatches of the moduli and lattice parameters at the interfaces.

关键词： High-entropy alloy AICoCrFeNi_(2.1) Interface Kurdjumov-Sachs(KS) Dislocation

Optimization of microbial cell factories for astaxanthin production: Biosynthesis and regulations, engineering strategies and fermentation optimization strategies

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Synthetic and Systems Biotechnology 2022年第2期7卷 689-704页

作者： Mostafa Basiony Liming Ouyang Danni wang Jiaming Yu Liming Zhou Mohan Zhu Xuyuan wang Jie Feng Jing Dai Yijie Shen Chengguo Zhang Qiang Hua xiuliang Yang Lixin Zhang State Key Laboratory of Bioreactor Engineering East China University of Science and TechnologyShanghai200237China Shandong Jincheng Bio-Pharmaceutical Co. Ltd.No.117 Qixing River RoadZibo255130ShandongChina

The global market demand for natural astaxanthin is rapidly increasing owing to its safety,the potential health benefits,and the diverse applications in food and pharmaceutical *** major native producers of natural astaxanthin on industrial scale are the alga Haematococcus pluvialis and the yeast Xanthopyllomyces ***,the natural production via these native producers is facing challenges of limited yield and high cost of cultivation and ***,astaxanthin production via metabolically engineered non-native microbial cell factories such as Escherichia coli,Saccharomyces cerevisiae and Yarrowia lipolytica is another promising strategy to overcome these *** this review we summarize the recent scientific and biotechnological progresses on astaxanthin biosynthetic pathways,transcriptional regulations,the interrelation with lipid metabolism,engineering strategies as well as fermentation process control in major native and non-native astaxanthin *** progresses illuminate the prospects of producing astaxanthin by microbial cell factories on industrial scale.

关键词： Astaxanthin Carotenoids Metabolic engineering Microbial cell factories Lipid Fermentation Antioxidants

Using irrigation intervals to optimize water-use efficiency and maize yield in Xinjiang,northwest China

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The Crop Journal 2019年第3期7卷 322-334页

作者： Guoqiang Zhang Dongping Shen Bo Ming Ruizhi Xie xiuliang Jin Chaowei Liu Peng Hou Jun Xue Jianglu Chen Wanxu Zhang Wanmao Liu Keru wang Shaokun Li The Key Laboratory of Oasis Eco-agriculture Xinjiang Production and Construction GroupCollege of AgronomyShihezi UniversityShihezi 832000XinjiangChina Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China Key Laboratory of Crop Physiology and Ecology Ministry of AgricultureBeijing 100081China UMR EMMAH INRAUAPV84914 AvignonFrance Research Institute of Agricultural Sciences Division 6 of Xinjiang Production and Construction GroupWujiaqu 831300XinjiangChina

Worldwide, scarce water resources and substantial food demands require efficient water use and high *** study investigated whether irrigation frequency can be used to adjust soil moisture to increase grain yield and water use efficiency(WUE) of high-yield maize under conditions of mulching and drip irrigation.A field experiment was conducted using three irrigation intervals in 2016: 6, 9, and 12 days(labeled D6, D9, and D12) and five irrigation intervals in 2017: 3, 6, 9, 12, and 15 days(D3, D6, D9, D12, and D15).In Xinjiang, an optimal irrigation quota is 540 mm for high-yield *** D3, D6, D9, D12, and D15 irrigation intervals gave grain yields of 19.7, 19.1–21.0, 18.8–20.0, 18.2–19.2, and 17.2 Mg ha^-1 and a WUE of 2.48, 2.53–2.80, 2.47–2.63, 2.34–2.45, and 2.08 kg m-3, *** D6 led to the highest soil water storage, but evapotranspiration and soil-water evaporation were lower than other *** results show that irrigation interval D6 can help maintain a favorable soil-moisture environment in the upper-60-cm soil layer, reduce soilwater evaporation and evapotranspiration, and produce the highest yield and *** this arid region and in other regions with similar soil and climate conditions, a similar irrigation interval would thus be beneficial for adjusting soil moisture to increase maize yield and WUE under conditions of mulching and drip irrigation.

关键词： Irrigation frequency Soil moisture Maize High yield(>15 Mg ha^(-1)) Water use efficiency

Time series canopy phenotyping enables the identification of genetic variants controlling dynamic phenotypes in soybean

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Journal of Integrative Plant Biology 2023年第1期65卷 117-132页

作者： Delin Li Dong Bai Yu Tian Ying-Hui Li Chaosen Zhao Qi wang Shiyu Guo Yongzhe Gu Xiaoyan Luan Ruizhen wang Jinliang Yang Malcolm J.Hawkesford James C.Schnable xiuliang Jin Li-Juan Qiu The National Key Facility for Crop Gene Resources and Genetic Improvement(NFCRI)/Key Laboratory of Crop Gene Resource and Germplasm Enhancement(MOA)/Key Laboratory of Soybean Biology(Beijing)(MOA) Institute of Crop Science Chinese Academy of Agricultural SciencesBeijing 100081 China Crops Research Institute of Jiangxi Academy of Agricultural Sciences Nanchang 330200 China College of Agriculture Northeast Agricultural University Harbin 150030 China Soybean Research Institute Heilongjiang Academy of Agricultural Sciences Harbin 150086 China Department of Agronomy and Horticulture University of Nebraska-Lincoln Lincoln Nebraska 68583 USA Plant Sciences Department Rothamsted ResearchWest CommonHarpendenHertfordshire AL52JQ UK

Advances in plant phenotyping technologies are dramatically reducing the marginal costs of collecting multiple phenotypic measurements across several time ***,most current approaches and best statistical practices implemented to link genetic and phenotypic variation in plants have been developed in an era of single-time-point ***,we used time-series phenotypic data collected with an unmanned aircraft system for a large panel of soybean(Glycine max(L.)Merr.)varieties to identify previously uncharacterized ***,we focused on the dissection of canopy coverage(CC)variation from this rich data *** also inferred the speed of canopy closure,an additional dimension of CC,from the time-series data,as it may represent an important trait for weed ***-wide association studies(GWASs)identified 35 loci exhibiting dynamic associations with CC across developmental *** time-series data enabled the identification of 10 known flowering time and plant height quantitative trait loci(QTLs)detected in previous studies of adult plants and the identification of novel QTLs influencing *** novel QTLs were disproportionately likely to act earlier in development,which may explain why they were missed in previous single-time-point ***,this time-series data set contributed to the high accuracy of the GWASs,which we evaluated by permutation tests,as evidenced by the repeated identification of loci across multiple time *** novel loci showed evidence of adaptive selection during domestication,with different genotypes/haplotypes favored in different geographic *** summary,the time-series data,with soybean CC as an example,improved the accuracy and statistical power to dissect the genetic basis of traits and offered a promising opportunity for crop breeding with quantitative growth curves.

关键词： canopy coverage dynamic regulation GWAS soybean time series unmanned aircraft system