Suitable Region for Flue-cured Tobacco (Nicotiana glauca L.) Planting Based on Spatial Scene Similarity

[Objective] The aim was to establish a model based on spatial scene similarity, for which soil, slope, transport, water conservancy, light, social economic factors in suitable planting areas were all considered. A new suitable planting area of flue-cured tobacco was determined by comparison and analysis, with consideration of excellent area. [Method] Totaling thirty natural factors were chosen, which were clas- sified into nine categories, from Longpeng Town （LP） and Shaochong Town （SC） in Shiping County in Honghe Hani and Yi Autonomous Prefecture. [Result] According to weights, the factors from high to low were as follows： soil〉light〉elevation〉slope〉 water conservancy〉transport〉baking facility〉planting plans over the years〉others. The similarity of geographical conditions in the area was 0.894 3, which indicated that the planting conditions in the two regions are similar. If farmer population in unit area, farmland quantity for individual farmer, labors in every household, activity in planting flue-cured tobacco and work of local instructor were considered, the weights of different factors were as follows： farmer population in unit area〉farmland quantity for individual farmer〉farmers＇ activity in planting flue-cured tobacco〉educational back- ground〉labor force in every household〉instructor〉population of farmers＇ children at- tending school. The similarity of geographical conditions was 0.703 1, which indicated that it is none-natural factors that influence yield and quality of flue-cured tobacco. [Conclusion] According to analysis on suitable planting area of flue-cured tobacco based on assessment of spatial scene similarity, similarity of growing conditions in two spatial scenes can be analyzed and evaluated, which would promote further exploration on, influencing factors and effects on tobacco production.

Keypoint Description Using Statistical Descriptor with Similarity-Invariant Regions

This article presents a method for the description of key points using simple statistics for regions controlled by neighboring key points to remedy the gap in existing descriptors.Usually,the existent descriptors such as speeded up robust features(SURF),Kaze,binary robust invariant scalable keypoints(BRISK),features from accelerated segment test(FAST),and oriented FAST and rotated BRIEF(ORB)can competently detect,describe,and match images in the presence of some artifacts such as blur,compression,and illumination.However,the performance and reliability of these descriptors decrease for some imaging variations such as point of view,zoom(scale),and rotation.The intro-duced description method improves image matching in the event of such distor-tions.It utilizes a contourlet-based detector to detect the strongest key points within a specified window size.The selected key points and their neighbors con-trol the size and orientation of the surrounding regions,which are mapped on rec-tangular shapes using polar transformation.The resulting rectangular matrices are subjected to two-directional statistical operations that involve calculating the mean and standard deviation.Consequently,the descriptor obtained is invariant(translation,rotation,and scale)because of the two methods;the extraction of the region and the polar transformation techniques used in this paper.The descrip-tion method introduced in this article is tested against well-established and well-known descriptors,such as SURF,Kaze,BRISK,FAST,and ORB,techniques using the standard OXFORD dataset.The presented methodology demonstrated its ability to improve the match between distorted images compared to other descriptors in the literature.

The Bio-Geographical Regions Division of Global Terrestrial Animal by Multivariate Similarity Clustering Analysis Method

A novel multivariate similarity clustering analysis (MSCA) approach was used to estimate a biogeographical division scheme for the global terrestrial fauna and was compared against other widely used clustering algorithms. The faunal dataset included almost all terrestrial and freshwater fauna, a total of 4631 families, 141,814 genera, and 1,334,834 species. Our findings demonstrated that suitable results were only obtained with the MSCA method, which was associated with distinct hierarchies, reasonable structuring, and furthermore, conformed to biogeographical criteria. A total of seven kingdoms and 20 sub-kingdoms were identified. We discovered that the clustering results for the higher and lower animals did not differ significantly, leading us to consider that the analysis result is convincing as the first zoogeographical division scheme for global all terrestrial animals.

The differences and similarities between regional ethnic medicine and traditional Chinese medicine in the prevention and treatment of cancer pain

REM and TCM are both important parts of traditional medicine in China,and they have their own characteristics in the understanding and prevention of diseases.This article compares the understanding,the theoretical prevention and treatment guidance and the clinical application of the REM and TCM on the cancer pain.

AN ADAPTIVE DIGITAL IMAGE WATERMARK ALGORITHM BASED ON GRAY-SCALE MORPHOLOGY

An adaptive digital image watermark algorithm with strong robustness based on gray-scale morphology is proposed in this paper.The embedded strategies include:The algorithm seeks and extracts adaptively the image strong texture regions.The algorithm maps the image strong texture region to the wavelet tree structures, and embeds adaptively watermark into the wavelet coefficients corresponding to the image's strong texture regions.According to the visual masking features, the algorithm adjusts adaptively the watermark-embedding intensity.Experimental results show the algorithm is robust to compression, filtering, noise as well as strong shear attacks.The algorithm is blind watermark scheme.The image strong texture region extraction method based on morphology in this algorithm is simple and effective and adaptive to various images.

A Contrastive Analysis of Regional Culture between Happiness and The Pursuit of Happyness

Movies play an important role in showing regional culture.This thesis analyzes similar and different cultures in two movies.Similarities are in marriage and traditions while differences are in ideology,food culture and lifestyle.Happiness and The Pursuit of Happyness are adapted by true men’s stories in real places,one for Xi’an,Shaanxi province and the other for San Francisco,America.Protagonists are common people,representing China and America’s cultural orientations and values.These contrastive aspects make people have a better understanding towards regional cultures.

Paired regions for shadow removal approach based on multi-features

The existence of shadow leads to the degradation of the image qualities and the defect of ground object information.Shadow removal is therefore an essential research topic in image processing filed.The biggest challenge of shadow removal is how to restore the content of shadow areas correctly while removing the shadow in the image.Paired regions for shadow removal approach based on multi-features is proposed, in which shadow removal is only performed on related sunlit areas.Feature distance between regions is calculated to find the optimal paired regions with considering of multi-features(texture, gradient feature, etc.) comprehensively.Images in different scenes with peak signal-to-noise ratio(PSNR) and structural similarity(SSIM) evaluation indexes are chosen for experiments.The results are shown with six existing comparison methods by visual and quantitative assessments, which verified that the proposed method shows excellent shadow removal effect, the brightness, color of the removed shadow area, and the surrounding non-shadow area can be naturally fused.

我国“区域性”类案检索机制的实践检视及完善进路

我国国情和司法实践之独特性决定了类案检索机制之定位应当是“区域性”而非“全域性”。上述特点决定了我国“区域性”类案检索机制之构建应当是对我国司法实践经验的总结和提炼,而非简单借鉴域外法治。通过对我国类案检索机制“区域性”试点之考察,可以发现我国“区域性”类案检索机制存在着适用主体差异性、类案识别标准不一致性以及类案检索效力模糊性之弊端。应当明确法官与当事人在类案检索机制具体适用上的权利义务分配,并且统一区域内类案识别标准,在明确类案检索机制的辅助作用的同时,通过层次化的效力构建总结和完善我国“区域性”类案检索机制在司法实践中的具体适用。

利用产业结构相似系数分析产业结构合理性——以黑龙江为例

黑龙江省作为国家粮仓和东北振兴的核心力量,经济发展却因各种原因而显现缓降趋势。黑龙江省各市经济发展不平衡可能会对黑龙江省整体经济的稳健发展产生影响。这种不平衡主要体现在资源分配不均、产业结构不合理、经济发展速度差异等方面,从而影响整个省份的经济稳定和可持续发展。文章通过计算产业结构相似系数对黑龙江省13个地区的产业聚集程度和产业结构趋势同化进行测度,从而对黑龙江省各地区的产业结构合理性提出科学的优化升级路径建议,以供参考。

三维荧光结合区域积分鉴别酸枣仁及其掺伪品

目的:研究建立酸枣仁三维荧光光谱鉴别方法,为酸枣仁真伪鉴别提供依据。方法:建立6批不同产地酸枣仁三维荧光光谱,并利用三维荧光技术对2批酸枣仁伪品、3批掺伪品鉴别分析,采用荧光区域积分法对不同产地酸枣仁、酸枣仁伪品及掺伪品三维荧光图谱进行区域积分,将区域积分值进行相似度评价、聚类分析和主成分分析。结果:相似度结果显示,不同产地酸枣仁三维荧光图谱相似性均为1,相似性极高;聚类结果与主成分分析结果一致,明确将样品分为3类,均能通过区域积分值实现酸枣仁正品、伪品、掺伪品的区分。结论:利用三维荧光技术可以对不同产地酸枣仁质量进行一致性评价,实现酸枣仁真伪的快速鉴别,为酸枣仁的质量评价提供参考。

基于分层需水的水资源均衡配置研究

水资源配置是缓解区域水资源供需矛盾、均衡水与发展的关键措施。根据新时期水资源精细化管理的有关要求,以农业、工业、生活、生态用水户为对象,基于分层需水相关理论和已有成果,提出了刚性需水、弹性需水的计算方法;综合考虑社会、经济、环境效益,构建了面向分层需水的水资源优化配置模型,采用NSGA-Ⅲ算法与EMW-TOPSIS法求解得到4种效益配置方案;以用水基尼系数表征配置单元间、用水户间的用水公平性,对非劣解集内配置方案的用水公平性进行评价,筛选出兼顾用水公平和效益的均衡配置方案;最后以宁夏回族自治区为典型研究区,进行案例应用。结果表明:均衡配置方案下,2025年宁夏全区总缺水量为10.74×10^(8)m^(3),经济效益为2182.6×10^(8)元,污染物排放量为162.78 t,该方案对应的全区用水基尼系数为0.98,配置单元间、不同用水户间用水公平性较高;与现状年相比,均衡配置方案对应的全区地下水开采量减少了0.91×10^(8)m^(3),降幅超过16.1%,地下水供水量占总供水量比例下降1.3%,进一步优化了自治区供水结构。本研究提出的水资源均衡配置思路与方法可为水资源短缺地区均衡配置提供借鉴,也可为新时期落实水资源刚性约束制度提供技术支撑。

长三角区域司法案件类案检索机制的实践路径

长三角一体化的国家战略要求区域适法统一,为一体化发展提供优质司法保障。类案检索机制能够有效推动适法统一,但需平衡机制效用与审判效率,尊重法官独立行使审判权,避免严格繁琐的检索规范使类案检索流于形式。应当进行类案检索的案件以裁判规则缺失或不明为限,“应当”指向检索程序的启动,而非检索结果的采纳,不能仅以裁判结果的正确性判断类案参考的准确性。检索初期,可以通过案由、关键词、裁判依据等识别类案,进而根据一定顺位筛选可参考的类案。需撰写类案检索报告供案件评议参考的,报告格式可以相对统一,这样可提高撰写及参阅效率,并便于数字化归入检索平台,延伸检索成果的司法效用。

基于气候相似性分析白酒最佳酿造地区研究——以白云边酒业为例

湖北白云边酒是浓酱兼香型酒的典型代表,独特的气候条件决定了白云边酒“芳香优雅、酱浓协调、绵厚甜爽、圆润怡长”的风味特征。针对白酒最佳酿造地气候区划研究空白这一现实,本研究通过对比白云边酒酿造地不同酿酒轮次时段内与洪湖、秭归气候条件的差异,得到了酒酿造地独特的气候特征,提出了计算气候相似度的改进马氏距离法(添加了时段权重系数和因子权重系数),根据白云边酿酒轮次时段、轮次酒品质和白云边酒酿造地独特气候特征,分别对时段权重系数和因子权重系数进行赋值,得出了全国各地与白云边酒酿造地气候相似性空间分布,结合专家建议的阈值,首次对白云边酿造地进行了气候相似性区划,得到面积约972.4km^(2)的高度气候相似区,为白云边酒业的发展提供了数据支持。

基于改进区域生长法分割CT图像肝肿瘤的研究

针对腹部内存在组织器官多、解剖结构复杂、组织器官边界模糊等特点,该文提出改进区域生长法分割CT图像肝肿瘤。算法根据肝肿瘤CT值与正常肝组织CT值差异遍历整幅图像预判种子点位置。种子区域的生长结合局部区域像素的均值和局部区域像素梯度均值。通过对不同类型的CT图像肝肿瘤进行分割,并以面积迭代度和误分率评判分割效果。研究结果表明,改进算法的面积迭代度是0.98±0.16、误分率是0.08±0.03,明显高于传统区域分割法(面积迭代度是0.78±0.32、误分率是0.35±0.18)。因此,改进区域生长法可以较好地实现肝组织中感兴趣区域的提取,并保持肝组织的完整,为后续肝脏肿瘤的三维重构和外科手术治疗提供准确的临床数据。

基于SE-Hardnet网络的无人机图像目标匹配算法

针对无人机对目标进行匹配定位过程中,面临图像旋转变化及视角尺寸过小导致的图像特征提取困难等问题,提出了一种融合候选区域检测与SE-Hardnet特征提取网络的无人机目标图像匹配算法。通过Edge Boxes算法检测候选区域,结合SE-Hardnet网络进行特征提取,实现了目标图像的精确匹配。实验结果表明,所提算法在图像发生角度、尺寸变化时,具有更高的匹配正确率和鲁棒性,在近距离条件下图片数据集中的匹配正确率比现阶段图像匹配算法高8%~11%。为无人机目标定位提供了一种可行和有效的手段。

Cloud model-clustering analysis based evaluation for ventilation system of underground metal mine in alpine region

Ventilation system is significant in underground metal mine of alpine region.Reasonable evaluation of ventilation effectiveness will lead to a practical improvement for the maintenance and management of ventilation system.However,it is difficult to make an effective evaluation of ventilation system due to the lack of classification criteria with respect to underground metal mine in alpine region.This paper proposes a novel evaluation method called the cloud model-clustering analysis(CMCA).Cloud model(CM)is utilized to process collected data of ventilation system,and they are converted into cloud descriptors by CM.Cloud similarity(CS)based Euclidean distance(ED)is proposed to make clustering analysis of assessed samples.Then the classification of assessed samples will be identified by clustering analysis results.A case study is developed based on CMCA.Evaluation results show that ventilation effectiveness can be well classified.Moreover,CM is used alone to make comparison of evaluation results obtained by CMCA.Then the availability and validity of CMCA is verified.Meanwhile,difference of CS based ED and classical ED is analyzed.Two new clustering analysis methods are introduced to make comparison with CMCA.Then the ability of proposed CMCA to meet evaluation requirements of ventilation system is verified.

寒区运营隧道温度场大型模型试验系统研究

以大阪山隧道温度场模型试验为例,基于相似理论对寒区运营隧道温度场相似关系进行了研究,运用方程分析法推导了模型试验相似准则,实现了模型试验几何条件、边界条件及材料参数的相似,并将其应用于隧道温度场模型试验.结合现场实测数据,从隧道洞内气温,围岩冻结深度方面与模型试验数据进行了对比分析,结果表明:修正之后的模型试验结果与现场实测数据吻合效果较好,说明本次相似关系的拟定是合理的,可以为寒区运营隧道温度场的研究及模型试验相似材料的选取提供一定的参考价值.

基于优先级层次熵-修正TOPSIS法的区域科技创新能力评价

区域科技创新能力已成为决定地区综合竞争力的重要因素,科学全面地评价区域科技创新能力有助于提升地区经济水平。从创新投入能力、创新产出能力、技术转化能力、创新环境支撑能力4个维度,构建区域科技创新能力评价指标体系。考虑到指标优先级的影响,采用不完全指标排序关系修正方法并结合层次分析法和熵值法对评价指标进行组合赋权,进而使用修正TOPSIS(逼近理想解排序)法进行综合评价。最后,选取陕西、北京、河南、辽宁4个不同地区代表性省市,对其科技创新能力进行综合评价。评价结果与现实情况基本一致,从而验证了评价方法的有效性。

水文模型参数区域化方法研究进展

参数区域化方法是解决资料缺乏地区水文模拟和预报的有效手段,主要包括回归法、空间邻近法和属性相似法三类方法,可将有资料流域的水文模型参数移用到资料缺乏流域。首先回顾了区域化方法的基本原理和应用方法,并分析了三类主要区域化方法的适用性。从流域特征因子、水文模型及参数、不确定性探讨三个方面综述了区域化方法的研究进展。分析发现,当前区域化方法缺乏完善的理论基础,流域特征因子选择存在主观性,水文模型及参数的适用性方面研究不足。最后展望了未来的研究重点:(1)多维度适用性比较;(2)水文过程和参数的空间分布规律;(3)参数的尺度问题;(4)参数区域化的不确定性问题。

Optimization method of Hadamard coding plate inγ‑ray computational ghost imaging

Owing to the constraints on the fabrication ofγ-ray coding plates with many pixels,few studies have been carried out onγ-ray computational ghost imaging.Thus,the development of coding plates with fewer pixels is essential to achieveγ-ray computational ghost imaging.Based on the regional similarity between Hadamard subcoding plates,this study presents an optimization method to reduce the number of pixels of Hadamard coding plates.First,a moving distance matrix was obtained to describe the regional similarity quantitatively.Second,based on the matrix,we used two ant colony optimization arrangement algorithms to maximize the reuse of pixels in the regional similarity area and obtain new compressed coding plates.With full sampling,these two algorithms improved the pixel utilization of the coding plate,and the compression ratio values were 54.2%and 58.9%,respectively.In addition,three undersampled sequences(the Harr,Russian dolls,and cake-cutting sequences)with different sampling rates were tested and discussed.With different sampling rates,our method reduced the number of pixels of all three sequences,especially for the Russian dolls and cake-cutting sequences.Therefore,our method can reduce the number of pixels,manufacturing cost,and difficulty of the coding plate,which is beneficial for the implementation and application ofγ-ray computational ghost imaging.