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基于“六个必须坚持”的推进水利财务高质量发展探讨

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海河水利 2024年第6期 117-119页

作者：高西王利刚海河水利委员会综合管理中心天津300170

“六个必须坚持”是党的二十大的创新性理论,从全面把握、深入领会“六个必须坚持”的内涵入手,对标水利财务工作的实际,提出“六个做到”,即做到服务与监督并举、做到坚持提升专业化水平、做到不断拓宽工作思路、做到重视调查研究、做... 详细信息

“六个必须坚持”是党的二十大的创新性理论,从全面把握、深入领会“六个必须坚持”的内涵入手,对标水利财务工作的实际,提出“六个做到”,即做到服务与监督并举、做到坚持提升专业化水平、做到不断拓宽工作思路、做到重视调查研究、做到努力提高思想站位、做到服务与保障工作大局,切实把党的这一创新理论贯彻落实到水利财务工作当中,以“六个必须坚持”为根本遵循,推进水利财务高质量发展。

关键词： “六个必须坚持” 水利财务工作 “六个做到”

Propagation of Optical Pulses and Pulsed Beams in the Frequency Domain

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Chinese Physics Letters 2001年第9期18卷 1208-1210页

作者： liN Qiang wang li-gang Institute of Optics Department of PhysicsZhejiang UniversityHangzhou 310028

The diffraction integral formulae in the temporal and spatial-temporal frequency domains are derived by using a Fourier transform and tensor analysis method. Based on these formulae, the abcd law in the temporal frequency domain and the tensor ABCD law in the four-dimensional spatial-temporal frequency domain are derived. An application example of the derived formulae is provided.

关键词： formulae law tensor

苏里格致密气田间歇生产气井管理的创新实践与应用

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内蒙古石油化工 2024年第6期50卷 28-32,55页

作者：毛鹏程王立刚长城钻探工程有限公司苏里格气田分公司内蒙古鄂尔多斯017300

长城钻探工程有限公司苏里格气田分公司所辖苏10、苏11和苏53三个区块经过16年开发,目前间歇生产气井数量以每年6.5%的增长速率持续增加。截止2021年底,间开井数量已达到1 272口,占总投产井数的77.8%。间开井基数的持续增长为合作区块... 详细信息

长城钻探工程有限公司苏里格气田分公司所辖苏10、苏11和苏53三个区块经过16年开发,目前间歇生产气井数量以每年6.5%的增长速率持续增加。截止2021年底,间开井数量已达到1 272口,占总投产井数的77.8%。间开井基数的持续增长为合作区块稳产工作带来极大挑战,剩余储量挖潜难度逐年增大,亟需科学有效的先进气井管理方法引领区块间开井提质增效,实现区块可持续发展。针对上述难题,苏里格气田分公司自2014年起,积极推动间开井管理的创新实践与应用工作,在现场实践与应用方面取得了丰硕成果。八年来,通过气井管理模式创新改革,累计增产天然气超过6亿方,创造经济效益5.1亿元,为分公司累产400亿方做出了重要贡献。

关键词：间开井生产制度气井积液携液能力管理方法稳产

应用^(15)N自然丰度值揭示不同氮源对设施土壤氨挥发的贡献

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植物营养与肥料学报 2024年第2期30卷 242-251页

作者：田峪萍双睿辰刘原庆王立刚孟凡乔中国农业大学资源与环境学院北京100193 北方干旱半干旱耕地高效利用全国重点实验室/中国农业科学院农业资源与农业区划研究所北京100081

【目的】我国设施蔬菜生产中普遍存在着氮肥施用过量、氨气(NH_(3))挥发损失严重等问题。通过^(15)N自然丰度法,研究不同肥料类型对土壤NH_(3)挥发的影响,并定量分析其贡献率,为实现降低氮素损失的氮肥科学管理提供依据。【方法】开展为... 详细信息

【目的】我国设施蔬菜生产中普遍存在着氮肥施用过量、氨气(NH_(3))挥发损失严重等问题。通过^(15)N自然丰度法,研究不同肥料类型对土壤NH_(3)挥发的影响,并定量分析其贡献率,为实现降低氮素损失的氮肥科学管理提供依据。【方法】开展为期40天的番茄盆栽培养试验,供试土壤为棕壤,未施过肥也未种植过作物,供试作物为番茄。试验设置4个处理,即不施氮肥(CK)和等量施氮(N3 g/pot)条件下单施鸡粪有机肥(M)、单施尿素(U)、有机肥半量替代尿素(MU)处理。利用被动采样器测定了土壤NH_(3)挥发速率和累积排放量,并借助^(15)N自然丰度方法估算肥料和土壤氮对NH_(3)挥发的贡献。【结果】基肥施用后3~6天内,NH_(3)挥发速率迅速增加并达到高峰,之后逐渐降低,直至第33天恢复到施肥前水平。与MU和U处理相比,M处理的净NH_(3)挥发累积量分别显著降低了60.8%和63.1%(P<0.05),MU较U处理的NH_(3)减排效果不显著(4.62%),相应的NH_(3)挥发系数分别为1.37%(U)、1.29%(MU)及0.51%(M)。施肥处理中,δ^(15)N-NH_(3)值随NH_(3)挥发的进行而迅速降低,然后逐渐增加至施肥前水平,M处理的δ^(15)N-NH_(3)均值高于MU和U处理。^(15)N同位素混合方程计算显示,在番茄生产中肥料对NH_(3)挥发的贡献比例为:M处理中鸡粪贡献30.5%,U处理中尿素贡献53.1%,MU处理中鸡粪和尿素分别贡献28.6%和56.6%。【结论】等量施氮条件下,单施鸡粪产生的NH_(3)挥发量远低于尿素,鸡粪和尿素等量氮配施对NH_(3)挥发的减排效果不显著。根据同位素分馏效应计算结果,单施鸡粪、尿素对土壤NH_(3)挥发源的贡献比例分别为30.5%、53.1%,鸡粪和尿素配施时二者对土壤NH_(3)挥发源的贡献比例分别为28.6%、56.6%,贡献比例与单施差异不大。因此,控制化肥氮施用量是减少NH_(3)挥发的关键。

关键词：氨挥发 ^(15)N自然丰度激发效应设施番茄分馏效应

Development of Near Infrared Spectroscopy for Rapid Quality Assessment of Red Ginseng

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Chemical Research in Chinese Universities 2009年第5期25卷 633-637页

作者： NIE li-xing wang gang-li liN Rui-chao National Institute for the Control of Pharmaceutical and Biological Products Beijing 100050 P. R. China

Near infrared spectroscopy（NIRS） was developed as a rapid analysis method for the qualitative and quantitative assessment of the quality of red ginseng. Discriminant analysis（DA） based on principal component analysis and Mahalanobis distance was used to distinguish red ginseng from counterfeits non-destructively. The result shows that the proposed method could distinguish red ginseng from counterfeits correctly and no misclassified sample was found in both training and test sets. The partial least squares（PLS） algorithm was used to predict the sum of ginsenosides Re and Rgl and the content of ginsenoside Rb1. Two calibration models were developed to correlate NIR spectra with the reference values determined by HPLC method. The correlation coefficient（R）, the root mean square error of calibration（RMSEC） and the root mean square error of prediction（RMSEP） were as follows： R=0.9827, RMSEC=0.0163%, RMSEP=0.0250% for the sum of ginsenosides Re and Rgl; R=0.9869, RMSEC=0.0156%, RMSEP=0.0256% for content of ginsenoside Rb1. The overall results demonstrate that NIRS coupled with chemometrics could be successfully applied as a rapid, precise and cost-effective method not only to identify the red ginseng from counterfeits but also to determine simultaneously some chemical compositions in red ginseng.

关键词： Near infrared soectroscopy Red ginseng Discriminant analysis Partial least squares

Quantum state manipulation of single-Cesium-atom qubit in a micro-optical trap

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Frontiers of physics 2014年第5期9卷 634-639页

作者： Zhi-Hui wang gang li Ya-li Tian Tian-Cai Zhang State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-Electronics Shanxi University Taiyuan 030006 China

Based on single Cesium atoims trapped in a 1064 nm microscopic optical trap we have exhibited a single qubit encoded in the Cesium ＂clock states＂. The single qubit initialization, detection and the fast state rotation with high efficiencies are demonstrated and this state manipulation is crucial for quantmn information processing. The ground ~ates Rabi flopping rate of 229.0 ± 0.6 kHz is realized hy a two-photon Raman process. A clock states dephasing time of 3.0 ± 0.7 ms is measured, while all irreversible homogeneous dephasing time of 124 ± 17 ms is achieved by using the spin-echo technique. This well-controlled single atom provides an ideal quantmn qubit and quantmn node for quantum information processing.

关键词： qubit single atom Rabi flopping spin-echo dephasing time

Erythropoietin Receptor Gene (EPOR) Polymorphisms are Associated with Sow litter Sizes

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Agricultural Sciences in China 2011年第6期10卷 931-937页

作者： ZHANG Long-chao wang li-gang li Yong YAN Hua ZHAO Ke-bin wang li-xian Institute of Animal Science Chinese Academy of Agricultural Sciences Beijing 100193 P.R. China

The erythropoietin receptor （EPOR） has shown to play an important role in fetal survival by promoting the maturation of red blood cells in many studies of uterine capacity and litter size in swine. In this study, we screened the porcine EPOR gene for mutations and identified five single nucleotide polymorphisms （SNPs）： g.705G〉T in intron 1, g.2 373C〉T in intron 4, and g.2 882C〉T, g.3 035A〉G, and g.3 132A〉T in intron 6. We then genotyped 247 Beijing Black （BB） sows and compared the polymorphism data with the litter sizes of 1 375 parities among the sows. At first parity, there was no association of g.2 882C〉T and g.3 132A〉T with litter sizes. However, the CT sows in g.2 882C〉T had 2.13 higher total number born （TNB）（P〈0.01） and 1.81 higher number born alive （NBA）（P〈0.01） than the CC sows and the heterozygous sows in g.3 132A〉T had the highest litter size when compared to the two homozygotes for the later parities （P〈0.05）. In the g.3 035A〉G SNP, for the later parities, the TNB of the sows with the GG genotype was 3.81 higher （P〈0.01） and the NBA was 2.75 higher （P〈0.01） than that with the AA genotype but no difference at first parity. The G allele of the EPOR g.705G〉T SNP was associated with a greater litter size at both the first parity （P〈0.05） and later parities （P〈0.01）. Furthermore, we determined the allele frequencies for this SNP among five Chinese indigenous pig breeds （Erhualian, Laiwu Black, Meishan, Min, and Rongchang） and three western commercial pig breeds （Duroc, Landrace, and Large White）. The G allele of the EPOR g.705G〉T SNP was significantly more common in the more prolific Chinese breeds. These results indicated that the EPOR could be an important candidate gene for litter size and g.705G〉T can serve as a useful genetic marker for improving litter size in both first and later parities in swine.

关键词： erythropoietin receptor litter size pig single nucleotide polymorphism

Synthesis, Crystal Structure and Insecticidal Activities of Novel Neonicotinoid Derivatives

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Chemical Research in Chinese Universities 2010年第3期26卷 380-383页

作者： ZHAO Yu wang gang li Yong-qiang wang Su-hua li Zheng-ming State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry National Pesticide Engineering Research Center（Tianjin） Nankai University Tianjin 300071 P. R. China

Ten new N-oxalyl derivatives of neonicotinoid compound were designed and synthesized. Their structures were confirmed by ^1H NMR spectra, elemental analysis and X-ray diffraction. The preliminary insecticidal activities of the new compounds were evaluated. The results of bioassays indicate that the title Compounds exhibit moderate insecticidal activities. Surprisingly, the insecticidal activity of compound 7b against bean aphids at 200 mg/kg is 100%, which is comoarable to that of the commercialized imidacloprid.

关键词： Neonicotinoid N-Oxalyl derivative Insecticidal activity Bean aphid Imidacloprid

Impacts of Fertilization Alternatives and Crop Straw Incorporation on N_2O Emissions from a Spring Maize Field in Northeastern China

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Journal of Integrative Agriculture 2014年第4期13卷 881-892页

作者： YANG li wang li-gang li Hu QIU Jian-jun liU Hui-ying Key Laboratory of Non-Point Source Pollution Control Ministry of Agriculture/CAAS-UNH Joint Laboratory for Sustainable Agro-Ecosystem Research/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences Institute of Plant Nutrition and Environmental Resources Liaoning Academy of Agricultural Sciences

Spring maize is one of the most popular crops planted in northeastem China. The cropping systems involving spring maize have been maintaining high production through intensive management practices. However, the high rates of nitrogen （N） fertilizers application could have introduced a great amount of nitrous oxide （N2O） into the atmosphere. It is crucial for sustaining the maize production systems to reduce N2O emissions meanwhile maintaining the optimum yields by adopting alternative farming management practices. The goal of this study was to evaluate effects of alternative fertilization and crop residue management practices on N2O emission as well as crop yield for a typical maize field in northeastern China. Field experiments were conducted during the 2010-2011 maize growing seasons （from early May to late September） in liaoning Province, northeastern China. N2O fluxes were measured at the field plots with six different treatments including no N fertilizer use （CK）, farmers＇ conventional N fertilizer application rate （FP）, reduced N fertilizer rate （OPT）, reduced N fertilizer rate combined with crop straw amendment （OPTS）, slow-release N fertilizer （CRF）, and reduced N fertilizer rate combined with nitrification inhibitor （OPT＋DCD）. The static chamber method combined with gas chromatography technique was employed to conduct the measurements of N2O fluxes. The field data showed that N2O emissions varied across the treatments. During the maize growing season in 2010, the total N2O emissions under the treatments of CK, FP, OPT, OPTS, and CRF were 0.63, 1.11, 1.03, 1.26, and 0.98 kg N ha-1, respectively. The seasonal cumulative N2O emissions were 0.54, 1.07, 0.96, 1.12, and 0.84 kg N ha1, respectively, under CK, FP, OPT, OPTS, and OPT＋DCD in 2011. In comparison with FP, CRF or OPT＋DCD reduced the N2O emissions by 12 or 21%, respectively, while the crop yields remained unchanged. The results indicate that the reduction of N-fertilizer application rate in combination w

关键词： nitrogen fertilization straw incorporation nitrous oxide crop yield spring maize