Assessment on the Water Resources Carrying Capacity in Karst Area Based on the Cosine Vector Included Angle

[Objective] The research aimed to assess the water resources carrying capacity in Guizhou Province based on the cosine vector included angle method. [Method] By using the cosine vector included angle method, the index weight was determined. The projection value of water resources carrying capacity in Guizhou Province was counted by using the multi-objective gray relational projection method. Moreover, the projection value which was counted by the index weight determined by the mean-variance method was as the control. [Result] The projection values which were obtained by two kinds of methods were very close, and the ordering result was consistent. [Conclusion] In the assessment of water resources carrying capacity, it was feasible to use the cosine vector included angle method to determine the index weight.

Shape retrieval using multi-level included angle functions-based Fourier descriptor

An effective shape signature namely multi-level included angle functions MIAFs is proposed to describe the hierarchy information ranging from global information to local variations of shape.Invariance to rotation translation and scaling are the intrinsic properties of the MIAFs.For each contour point the multi-level included angles are obtained based on the paired line segments derived from unequal-arc-length partitions of contour.And a Fourier descriptor derived from multi-level included angle functions MIAFD is presented for efficient shape retrieval.The proposed descriptor is evaluated with the standard performance evaluation method on three shape image databases the MPEG-7 database the Kimia-99 database and the Swedish leaf database. The experimental results of shape retrieval indicate that the MIAFD outperforms the existing Fourier descriptors and has low computational complexity.And the comparison of the MIAFD with other shape description methods also shows that the proposed descriptor has the highest precision at the same recall value which verifies its effectiveness.

STROBE Statement—Checklist of items that should be included in reports of case-control studies STROBE声明:病例对照研究报告写作清单①对文题、摘要、引言、方法的写作要求

Ⅰ.Title and abstract标题和摘要1(a)Indicate the study's design with acommonly used term in the title or the abstract

Scoping review update on somatic symptom disorder that includes additional Chinese data

Somatic symptom disorder(SSD)is a new diagnosis introduced into the Diagnostic and Statistical Manual of Mental Disorders,Fifth Edition(DSM-5),which is expected to solve the diagnostic difficulties of patients with medically unexplained symptoms.Based on the previous work,this review aims to comprehensively synthesise updated evidence related to SSD from recent years in English publications and,more extensively,from data published in Chinese language journals.The scoping review update was based on an earlier scoping review and included Chinese language publication data from China National Knowledge Internet(CNKI),WANFANG and WEIPU between January 2013 and May 2022 and data from PubMed,PsyclNFO,and Cochrane Library between June 2020 and May 2022.Initially,2984 articles were identified,of which 63 full texts were included for analysis.In China,SSD is mainly applied in scientific research,but it also shows good predictive validity and clinical application potential.The mean frequency of SSD was 4.5%in the general population,25.2%in the primary care population and 33.5%in diverse specialised care settings.Biological factors,such as brain region changes and heart rate variability,are associated with the onset of sSD.Psychological impairment related to somatic symptoms is the best predictor of prognosis.While adolescent SSD is significantly associated with family function,SSD overall is associated with an increased dysfunction of cognition and emotion,decreased quality of life,and high comorbidity with anxiety and depressive disorders.Further research is needed on suicide risk and cultural and gender-related issues.Updating the data of Chinese language studies,our research enriches the evidence-based findings related to the topics addressed in the text sections of the SSD chapter of DSM-5.However,research gaps remain about SSD reliability,population-based prevalence,suicide risk,and cultural and gender-related issues.

Checklist of items that should be included in the major reporting guidelines

STROBE STATEMENT STROBE StatementmChecklist of items that should be included in reports of case-control studies

Journal of Arid Land was included in Abstract Journal,All-Russian Institute of Scientific and Technical Information(VINITI) Database

On December 22, 2010, an E-mail by Dr. Elena Raevskaya, the manager of Asia and Africa Section, All-Russian Institute of Scientific and Technical Information （V1NITI）, was sent to Journal Publishing Center, Xinjiang Insti- tute of Ecology and Geography, CAS and said “Here is some new information about the Chinese journals evaluated by our experts. Ten journals have been found informative and useful in our work and have been included in VINITI database for regular abstraction （some of these journals were reexamined by expertise）.”

Determination of Kolmogorov Entropy of Chaotic Attractor Included in One-Dimensional Time Series of Meteorological Data

The 1970-1985 day to day averaged pressure dataset of Shanghai and the extension method in phase space are used to calculate the correlation dimension D and the second-order Renyi entropy K2 of the approximation of Kolmogorov's entropy, the fractional dimension D = 7.7-7.9 and the positive value K2 - 0.1 are obtained. This shows that the attractor for the short-term weather evolution in the monsoon region of China exhibits a chaotic motion. The estimate of K2 yields a predictable time scale of about ten days. This result is in agreement with that obtained earlier by the dynamic-statistical approach.The effects of the lag time i on the estimate of D and K2 are investigated. The results show that D and K2 are convergent with respect to i. The day to day averaged pressure series used in this paper are treated for the extensive phase space with T = 5, the coordinate components are independent of each other; therefore, the dynamical character quantities of the system are stable and reliable.

Resource and environmental factors should be included in economic analytical framework

In the economic analysis framework,natural resources and environmental factors are included in the category of capital or land.Hence,the explanatory variables of the production function only include capital,labor and the residue term technology.Such framework may be designed for methodological reasons,but it is

Elementary Contraceptive Information to be Included in Beijing's Middle School Textbooks

From September this year, trial editions of Sex Health Guidance for Senior Middle School Students, and Sex Health Guidance for Junior Middle School Students, will be used in several schools in Haidian District, Beijing. Haidian Education Commission has sent out notices to all middle schools in the district, including secondary specialized schools,

论污染环境罪的罪过形式“包括过失”——层级罪过说之提倡

在我国刑法理论界,关于污染环境罪的罪过形式主要有故意说、混合罪过说和择一罪过说。各种学说从不同角度对污染环境罪的罪过形式作出了较为合理的解释,但均存在不足。不论从刑法相关条文的客观含义还是污染环境罪的处罚必要性来看,均应当将污染环境罪的罪过形式解释为“包括过失”,而且过失与故意之间系层级关系,即故意是建立在过失基础之上的、更高层级的罪过形式。此种解释结论所引出的主要问题是,如何根据罪过形式的不同实现刑罚个别化,进而贯彻罪刑相适应和责任主义原则。为此,应当提倡根据故意从重处罚,即将故意的功能拓展到量刑领域。此解释结论可以运用于指导所有罪过形式“包括过失”之具体犯罪的量刑。

扭转角度对Shupe误差的影响及绕环工艺的优化

针对同一批次光纤环圈Shupe误差差异较大的问题,分析了扭转角度对Shupe误差的影响,并提出了绕环工艺优化方法。通过引入扭转角度重新推导了光纤环圈热致Shupe误差的理论公式并结合光纤环圈精细化有限元模型,建立了考虑扭转角度的光纤环圈Shupe误差模型。通过仿真对比不同扭转角度对Shupe误差的影响可知,扭转角度是造成同一批次光纤环圈Shupe误差可补偿性差的主要原因。通过优化绕环工艺方法,在分纤步骤即进行光纤退扭,可保证后续绕环环节张力控制的有效性和扭转角度的一致性。实验结果表明,采用退扭工艺后,光纤陀螺温度补偿后的零偏误差由0.01(°)/h降至约0.005(°)/h。

螺栓设计参数对连接状态的影响及轴向力可视化方法研究

螺栓结构的连接状态与轴向力密切相关,而轴向力受多因素的影响,在拧紧或者松动过程中不断变化且无法做到无传感器实时监测。首先,基于螺栓的外螺纹轮廓方程,建立了精细化的螺栓有限元模型。其次,基于此模型研究了螺纹接触面摩擦因数、牙型角、螺距对于螺栓预紧过程及松动过程的影响规律。最后,关联松动角度和轴向力,结合深度学习目标检测算法,将螺栓的轴向力信息可视化。研究结果表明:在拧紧和松动过程中,螺栓轴向力实现了可观和可控,同时螺栓在预紧相同角度的情况下,其轴向力随着螺距和牙型角的增大而增加;其预紧力矩随着螺纹接触面摩擦因数和螺距的增大而变大,但会随着牙型角的增大而变小。

中华体育精神的历史形成、美学内涵及当代传承

中华体育精神是儒家士人进取精神、道家重生精神及佛家慈悲精神等精神形态在体育领域的显现,它在历史形成过程中经历了以体育国的古典形态、以体救国的尚武精神和以体强国的体育精神等三个发展阶段。为国争光、无私奉献的精神哲学,科学求实、遵纪守法的道德哲学以及团结协作、顽强拼搏的境界哲学是中华体育精神美学内涵的具体所指。中华体育精神当代传承的关键在于通过美育教育使运动员和健身人群形成具有爱国热情和具有高雅趣味的“有我之境”。

融合多维度相似算法的中药复方个性化煎煮推荐研究

目的:为实现中药汤剂智能煎煮设备煎煮参数快速推荐,提出一种融合方剂多维度相似算法,借鉴古代经典名方的个性化煎煮推荐。方法:选取30首经典名方,给出算法推荐的煎煮参数值,比较与典籍记载对应的煎煮参数值之间的差异。针对中药复方的组成成分、剂量以及功用维度特性,分别采用Jaccard相似系数、夹角余弦相似度和潜在狄利克雷分布(LDA)主题模型相似度算法,计算实验方剂与煎煮数据库中方剂间的相似度,将各维度最为相似方剂的煎煮参数加权融合,获取30首经典名方的个性化煎煮参数。结果:加水量、武火及文火时长参数值之间的相对误差分别为5.3%、3.4%、7.1%。结论:2组煎煮参数值较为接近,较好地借鉴和传承经典名方煎煮工艺。

面向数字孪生模型应用的油浸式变压器绕组温度POD-RBFLP降阶计算方法

了解油浸式电力变压器绕组的温度情况是保证其运行稳定性的关键,也是当前针对油浸式变压器数字孪生分析的必然需求。为了快速地获得变压器绕组的稳态温度,该文提出一种基于本征正交分解(proper orthogonal decomposition,POD)和包含线性多项式的径向基函数响应面法(radial basis function response surface method including linear polynomial,RBFLP)的降阶计算模型。首先,讨论POD方法的降阶特性,并设计一种基于留一法交叉验证的自适应获得快照矩阵方法,以提高计算精度及效率;其次,采用响应面方法建立POD模态系数与绕组工况的相关关系,旨在实现通过绕组工况快速获得POD模态系数,从而跳过对降阶模型的复杂非线性计算,进而高效重构绕组温度场。相关算例表明,该方法具有较好的计算精度和效率,在50组测试工况下,与全阶计算相比,误差不超过2.5 K,且总计算时间仅为1.45 s;最后,基于110 kV变压器绕组搭建温升试验平台,试验结果表明,降阶计算结果相较于试验结果,平均计算误差不超过2 K,且单步计算时间仅为0.03 s,相较于同等规模的全阶计算,计算效率有较大幅度地提升。

黄芪桂枝五物加味汤联合甲钴胺治疗紫杉醇化疗后周围神经病变疗效观察

目的观察黄芪桂枝五物加味汤联合甲钴胺治疗紫杉醇化疗后周围神经病变的临床疗效。方法选取2021年9月—2022年9月于陕西中医药大学第二附属医院肿瘤乳腺外科住院治疗的恶性肿瘤患者96例,根据随机数字表法将患者分为3组,加味汤组35例给予黄芪桂枝五物加味汤联合甲钴胺治疗,原汤组32例给予黄芪桂枝五物汤联合甲钴胺治疗,对照组29例给予甲钴胺治疗,3组均连续治疗14 d。观察3组治疗前后周围神经病变分级、体力状况(ECOG)评分、卡氏功能状态(KPS)评分及治疗14 d后的临床疗效和治疗安全性。结果与治疗前比较,3组治疗后周围神经病变分级、ECOG评分、KPS评分均明显改善(P均<0.05);治疗后组间比较,加味汤组、原汤组周围神经病变分级、ECOG评分与对照组比较差异均无统计学意义(P均>0.05),KPS评分均明显高于对照组(P均<0.05),加味汤组和原汤组周围神经病变分级、ECOG评分、KPS评分比较差异均无统计学意义(P均>0.05)。3组治疗总有效率比较差异无统计学意义(P均>0.05),且均未出现不良反应。结论黄芪桂枝五物加味汤联合甲钴胺可减轻紫杉醇化疗后周围神经病变,改善患者体力状况和身体功能状态。

双弯弯管水力特性数值模拟分析

为探究不同夹角、流道结构、雷诺数下双弯弯管水力特性,揭示其不同夹角、流道结构、雷诺数、局部水头损失相关关系,以DN192 mm为例,建立弯弯、弯折、折弯、折折4种流道不同角度的三维结构模型,通过数值模拟计算和后处理,得到DN192 mm双弯弯管不同夹角、流道结构、雷诺数下水力特性及流场分布。结果表明:DN192 mm双弯弯管的局部阻力系数与夹角主要呈现二次抛物线关系变化,随着弯曲角度的增大呈先减小后增大的趋势,所有组合弯管在角度为π/6时局部阻力损失系数达到最小;相同条件下,弯弯组合弯管结构最好,弯折组合与折弯组合较好,折折组合最差;在双弯组合弯管设计中,入流方向与过渡段夹角应在π/6左右为宜。

利用Include指令实现ASP页面的代码重用

在开发计算机应用程序时 ,重用代码是一个简洁、高效的设计方法 ,然而 ,不少程序员却常常忽视这一设计思想。本文针对这一问题展开讨论 ,分析了在开发网页和Web应用时 ,利用Include指令实现ASP的代码重用的方法和过程 ,并给出示例。

Two-dimensional Parameter Relationships for W UMa-type Systems Revisited

Reviewing the empirical and theoretical parameter relationships between various parameters is a good way to understand more about contact binary systems.In this investigation,two-dimensional(2D)relationships for P–MV(system),P–L1,2,M1,2–L1,2,and q–Lratiowere revisited.The sample used is related to 118 contact binary systems with an orbital period shorter than 0.6 days whose absolute parameters were estimated based on the Gaia Data Release 3 parallax.We reviewed previous studies on 2D relationships and updated six parameter relationships.Therefore,Markov chain Monte Carlo and Machine Learning methods were used,and the outcomes were compared.We selected 22 contact binary systems from eight previous studies for comparison,which had light curve solutions using spectroscopic data.The results show that the systems are in good agreement with the results of this study.