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“有+VP的NP”与“有+NP+VP”的变换限制——兼论“有+NP+VP”的情态表达功能

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现代语文 2024年第1期 67-76,F0002页

作者：王梅晓寇鑫山东大学文学院山东济南250100

“有+VP的NP”和“有+NP+VP”结构之间存在互相变换的可能性,不过,这种变换是有一定条件限制的。以“VP的NP”结构为切入点,通过分析自指和转指的“有+VP的NP”向“有+NP+VP”变换的语义限制条件,得出以下结论:“有(VP的NP)转指”都可... 详细信息

“有+VP的NP”和“有+NP+VP”结构之间存在互相变换的可能性,不过,这种变换是有一定条件限制的。以“VP的NP”结构为切入点,通过分析自指和转指的“有+VP的NP”向“有+NP+VP”变换的语义限制条件,得出以下结论:“有(VP的NP)转指”都可以变换成“有+NP+VP”结构,对NP的语义没有严格的限制;同指性“有+(VP的NP)自指”均不能变换成“有+NP+VP”;限定性“有+(VP的NP)自指”结构中,只有由[+条件义][+附属义]特征的事件属性名词构成的“有+VP的NP”,才能完成结构变换。在这一基础上,探讨了这两种结构变换受限的原因,以及“有+NP+VP”结构的情态表达功能。

关键词： “有+VP的NP” “有+NP+VP” “有”字结构变换限制自指转指情态表达功能

A practical iterative two-view metric reconstruction with uncalibrated cameras

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第10期8卷 1614-1623页

作者： ZHOU Yong-jun kou xin-jian School of Naval Architecture. Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai 200240 China

This paper presents a practical iterative algorithm for two-view metric reconstruction without any prior knowledge about the scene and motion in a nonsingular geometry configuration. The principal point is assumed to locate at the image center with zero skew and the same aspect ratio, and the interior parameters are fixed, so the self-calibration becomes focal-length cali- bration. Existing focal length calibration methods are direct solutions of a quadric composed of fundamental matrix, which are sensitive to noise. A quaternion-based linear iterative Least-Square Method is proposed in this paper, and one-dimensional searching for optimal focal length in a constrained region instead of solving optimization problems with inequality constraints is applied to simplify the computation complexity, then unique rotational matrix and translate vector are recovered. Experiments with simulation data and real images are given to verify the algorithm.

关键词： Close-range photogrammetry Computer vision General relative orientation Unit quaternion Metric reconstruction

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新寨苗语关系小句研究

语言学论丛 2024年第2期 28-41页

作者：寇鑫杨正辉刘文山东大学文学院/山东大学语言科学实验中心济南250100 贵州民族出版社重大项目出版中心贵阳550081

文关注新寨苗语关系小句的句法类型及其语用功能。根据名词和关系小句的位置,新寨苗语存在前置、后置和中心语内置三类关系小句。其中,中心语内置关系小句比较独特,之前在苗语方言中未见报道。这三类关系小句结构上的差异使不同类型的... 详细信息

文关注新寨苗语关系小句的句法类型及其语用功能。根据名词和关系小句的位置,新寨苗语存在前置、后置和中心语内置三类关系小句。其中,中心语内置关系小句比较独特,之前在苗语方言中未见报道。这三类关系小句结构上的差异使不同类型的关系小句具有特定的句法特点;且关系化策略上的区别还导致了三类关系小句在关系化可及性等级上的差异。此外,本文还讨论了新寨苗语三类关系小句在语用功能上的分工,并对其句法分布的倾向性做出了解释。

关键词：新苗语关系化关系小句

Internal force and deformation matrixes and their applications in load path

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第8期11卷 563-570页

作者： Qi CHEN xin-jian kou Yan-meng ZHANG Department of Civil Engineering Shanghai Jiao Tong University Shanghai 200240 China

This paper deals with the internal force and the deformation matrixes, both of which can be used to analyze the topological relationship of a structure. Based on the reciprocal theorem, the relationship between the two matrixes is established, which greatly simplifies the computation of the internal force matrix. According to the characteristics of the internal force matrix, the transfer law of the matrix itself (due to the removal of components) is established based on the principle of linear superposition. With the relation of the two matrixes, the transfer law of the deformation matrix is also obtained. The transfer law illuminates the change regularity of internal force or deformation of the remnant structure when certain members are cut off one after another. The results of numerical examples show that the proposed methods are correct, reliable and effective.

关键词： Truss structure Redundancy Robustness Topological relationship of structure Removal of members Transfer law

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对辊式油茶果籽壳清选机的设计与试验

农机化研究 2025年第2期47卷 105-113,164页

作者：王东寇欣廖伟康地曲振兴汤晶宇国家林业和草原局哈尔滨林业机械研究所哈尔滨150086 湖南丰沃机械制造有限公司湖南岳阳414000 湖南省林业科学院长沙410004

针对现有油茶果籽壳清选机清选效果不佳、茶籽损伤率高问题,设计了一种采用齿光辊清选原理的对辊式油茶果籽壳清选机。同时,对油茶籽、壳的物理特性进行了研究,对清选装置辊组排布方式、齿光辊组数、清选关键部件齿辊齿形和直径分别进... 详细信息

针对现有油茶果籽壳清选机清选效果不佳、茶籽损伤率高问题,设计了一种采用齿光辊清选原理的对辊式油茶果籽壳清选机。同时,对油茶籽、壳的物理特性进行了研究,对清选装置辊组排布方式、齿光辊组数、清选关键部件齿辊齿形和直径分别进行了设计,分析了清选状态时油茶壳受力情况。为验证对辊式油茶果籽壳清选机是否达到了预期设计目标,设计了三因素三水平正交试验,选取清选间隙、辊轴转速、喂入量为试验因素,以茶籽破碎率和清选率为评价指标,对清选机进行现场试验。结果表明:清选间隙为3.13 mm、轴辊转速为298.25 r/min、喂入量为1.51 t/h时,对辊式油茶果籽壳清选机获得最佳清选效果,此时茶籽破损率为3.30%,清选率为96.79%。

关键词：油茶果籽壳混合物清选机齿光辊清选

Partial organic substitution weakens the negative effect of chemical fertilizer on soil micro-food webs

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Journal of Integrative Agriculture 2022年第10期21卷 3037-3050页

作者： LIU Han-wen ZHANG Xiao-ke ZHANG Gui-zong kou xin-chang LIANG Wen-ju Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China School of Geographical Science Northeast Normal UniversityChangchun 130024P.R.China

Soil biotic communities play vital roles in enhancing soil nutrient cycling and soil ***-term excessive nitrogen(N)application is disadvantageous to the stability of soil food webs and affects arable soil health and sustainable *** organic substitution is essential to improve soil health and alleviate the disadvantages of excessive chemical ***,the biological effects of various organic amendments on soil micro-food webs are poorly *** order to explore the effects of various organic amendments including stover,biochar and manure on soil micro-food webs(microbial and nematode communities),a field plot experiment with maize having five treatments viz.,100%urea(100%N),70%urea(70%N),70%urea plus stover(Stover),70%urea plus cattle manure(Manure)and 70%urea plus biochar(Biochar)was *** treatment increased the carbon(C)to N use efficiency of soil microbes,which contributed to the retention of soil C,while Biochar treatment elevated soil organic C(SOC)and soil p ***,Biochar treatment mitigated the negative effects of soil acidification on the soil micro-food web and reduced the abundance of plant ***,the biological effect of organic amendments was distinguished from chemical fertilization(100%N and 70%N)through principal co-ordinates *** relationships among soil properties,microbial and nematode biomass in the 100%N treatment were diminished in treatments where chemical fertilizer was *** bottom-up effects on soil food webs were observed in organic substitution *** conclusion,organic amendments improved soil fertility by regulating soil microbial and nematode communities in the cropland ecosystem,alleviated the negative effects of chemical fertilizer on the micro-food webs and controlled the trophic cascades among soil biota.

关键词： microbial community nematode community soil micro-food webs organic substitution chemical fertilizer soil health

锡林河流域滨河带湿地植物功能性状及差异研究

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生态科学 2024年第1期43卷 134-145页

作者：寇欣刘华民张景慧苑鹏云曹晓霭温璐于晓雯刘东伟王立新内蒙古大学生态与环境学院呼和浩特010021 草原生态安全省部共建协同创新中心呼和浩特010021 蒙古高原生态学与资源利用教育部重点实验室呼和浩特010021

作为河流景观重要组成部分的滨河带,是河流水体系统与相邻陆地之间的界面或生态过渡区。湿地植物及其群落在维系湿地生态系统稳定性及功能方面具有重要作用。本文通过对比锡林河流域滨河带上游、中游、下游以及放牧干扰下湿地植物20种... 详细信息

作为河流景观重要组成部分的滨河带,是河流水体系统与相邻陆地之间的界面或生态过渡区。湿地植物及其群落在维系湿地生态系统稳定性及功能方面具有重要作用。本文通过对比锡林河流域滨河带上游、中游、下游以及放牧干扰下湿地植物20种功能性状,在流域尺度上探究滨河带湿地植物功能性状对环境和放牧强度的响应,研究表明:锡林河流域滨河带不同河段湿地植物各功能性状变异系数波动范围较大,其中叶片碳含量(LCC,Leaf Carbon Concentration)变异系数最小为0.05,变异系数最大的是光合速率(Pn,Photosynthetic Rate),其值为2.64;湿地植物的结构性状与生理性状之间通过互补与替代、在功能上的平衡实现对环境的适应;湿中生草本、中生草本、旱生草本植株高度在退化样地显著低于轻微退化样地;植物株高、叶片LCC/LNC(Leaf Carbon Concentration/Leaf Nitrogen Concentration)、LNC/LPC(Leaf Nitrogen Concentratio/Leaf Phosphorus Concentration)在五种共有植物种芦苇(Phragmites australis)、扁穗草(Blysmus rufus)、鹅绒委陵菜(Potentilla anserina)、小糠草(Agrostis alba)、疗齿草(Odontites vulgaris)群落之间均存在显著差异;锡林河流域滨河带湿地植物在不同放牧梯度下,无论是在功能群水平还是植物共有种水平,对退化程度均表现出不一致的响应。

关键词：锡林河流域滨河带植物功能性状放牧干扰

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Surgical techniques to prevent delayed gastric emptying after pancreaticoduodenectomy

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Hepatobiliary & Pancreatic Diseases International 2024年第5期23卷 449-457页

作者： Peng Duan Lu Sun Kai kou xin-Rui Li Ping Zhang Department of Hepatobiliary and Pancreatic Surgery General Surgery Centerthe First Hospital of Jilin UniversityChangchun 130021China Department of Dental Implantology Hospital of StomatologyJilin UniversityChangchun 130021China

Background: Delayed gastric emptying(DGE) is one of the most common complications after pancreaticoduodenectomy(PD). DGE represents impaired gastric motility without significant mechanical obstruction and is associated with an increased length of hospital stay, increased healthcare costs, and a high readmission rate. We reviewed published studies on various technical modifications to reduce the incidence of DGE. Data sources: Studies were identified by searching Pub Med for relevant articles published up to December 2022. The following search terms were used: “pancreaticoduodenectomy”, “pancreaticojejunostomy”, “pancreaticogastrostomy”, “gastric emptying”, “gastroparesis” and “postoperative complications”. The search was limited to English publications. Additional articles were identified by a manual search of references from key articles. Results: In recent years, various surgical procedures and techniques have been explored to reduce the incidence of DGE. Pyloric resection, Billroth II reconstruction, Braun's enteroenterostomy, and antecolic reconstruction may be associated with a decreased incidence of DGE, but more high-powered studies are needed in the future. Neither laparoscopic nor robotic surgery has demonstrated superiority in preventing DGE, and the use of staplers is controversial regarding whether they can reduce the incidence of DGE. Conclusions: Despite many innovations in surgical techniques, there is no surgical procedure that is superior to others to reduce DGE. Further larger prospective randomized studies are needed.

关键词： Pancreaticoduodenectomy Delayed gastric emptying Postoperative complications Surgical techniques

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CQ-2000型苗圃振动式起苗机设计

林业机械与木工设备 2024年第5期52卷 23-27页

作者：王东寇欣田利梅张中良汤晶宇曲振兴国家林业和草原局哈尔滨林业机械研究所黑龙江哈尔滨150086 黑龙江省尚志国有林场管理局黑龙江哈尔滨150600 黑龙江省庆安国有林场管理局黑龙江哈尔滨152400

针对现有横切式起苗机起苗时存在被切主根有撕裂、茬口不平齐等问题,设计了一种新型振动式起苗机。该机的起苗刀由两片呈一定角度排布的切刀组成,起苗时可有效解决上述问题和一体式起苗刀生锈腐蚀,起苗质量得不到保障的现象。对CQ-2000... 详细信息

针对现有横切式起苗机起苗时存在被切主根有撕裂、茬口不平齐等问题,设计了一种新型振动式起苗机。该机的起苗刀由两片呈一定角度排布的切刀组成,起苗时可有效解决上述问题和一体式起苗刀生锈腐蚀,起苗质量得不到保障的现象。对CQ-2000型苗圃振动式起苗机的入土角、起苗刀刀宽和斜角进行了设计。为验证起苗机是否达到了预期性能目标,对CQ-2000型苗圃振动式起苗机进行了起苗深度变化范围、入土行程和伤苗丢苗率试验,试验结果表明:CQ-2000型苗圃振动式起苗机起苗深度变化范围、入土行程和伤苗丢苗率均符合LY/T 1430-2013苗圃床作型起苗机设计标准。

关键词：林业育苗苗圃振动式起苗机设计

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