英语高考分值变化引发的英语教学思考

就英语分值在高考中的变化,对现行的中学英语教学进行了反思,对未来英语教学方向的变化进行了思考。对今后英语学习方式、学习内容、学习氛围进行了设想。

跆拳道竞赛规则分值变化对运动员的影响

采用文献资料法、逻辑分析法等,探讨跆拳道新规则分值变化对运动员训练和比赛产生的影响。发现:新规则分值变化要求运动员掌握技术更加全面,改变运动员的技战术风格,使运动员更重视专项素质训练;运动员和教练员应深入理解规则中分值的变化趋势,从而更好地制订训练计划。

探究英语高考分值变化引发的英语教学思考

随着科技的发展和社会的不断进步,社会对优秀人才的需求量越来越大,国家对国民的文化教育引起了高度重视。近期高中英语改革体现在分值分布的变化上。这改变了高中英语未来的学习方式、学习内容和学习方法。针对高中英语分值的变化,社会各界对此看法不一,讨论高考英语分值变化成了当下的热点话题。

对古典式摔跤新规则中分值变化的分析研究

随着时代的不断进步,体育项目也在不断的更新、改进和发展,同样对于古典式摔跤而言也不例外,它也在不断地向前进步和发展。文章中,笔者通过研究和分析现如今古典式摔跤新规则中分值变化,以使从事摔跤的教练和运动员能够以新规则中分值变化为依据,进而培养和训练相应的技术和比赛战略,以使他们更有利于在比赛中得分以及取得最终的胜利。

分析变化 服务教学——从2021届高考备考及试题变化看物理教学的把握

作为新高考自主命题的第一年,福建省2021届高考在题型上出现了新增填空题的变化,同时实验题的分值也出现明显下降。就福建高考卷及5月九地市质检卷变化的角度进行分析、比较:新增填空题对学生的知识掌握要求变高了,试题的区分度更好;实验题的分值降低,实验考查更加重视基础,而这对今后高中物理教学、高考复习都会产生影响,把握这种变化,才能精准服务于今后教学。

生活变化与事故

生活中常常可以发现这样一种现象:一个人如果发生某些事件--不完全是不幸的事件,就会干扰他的"生物钟"节律和正常的生活规律,或者造成他的思想负担,从而降低对疾病的免疫能力或引起情绪波动,那么这个人就有可能在不久的将来导致疾病或者工伤事故的发生.国外安全工程研究人员很早以前就注意到生活变化与疾病或事故之间存在着很密切的关系,并对此关系进行了深入的研究.他们的研究证明,可以依据一个人近期所发生的某些事件即生活变化,判断他是否可能发生疾病或者工伤事故,而且生活事件对人发生疾病或事故所造成的负面作用的程度,可以用一种称为生活变化分值(Life ChangeUnit)的数据来定量地确定.

DAMAGE DETECTION FOR COMPOSITE STRUCTURE UNDER TEMPERATURE CHANGES USING LAMB WAVES

A two-step method is proposed for detection and identification of invisible impact damage in composite structure under temperature changes using Lamb waves.First,a statistical outlier analysis is employed to distinguish whether the changes of Lamb wave signals are induced by damage within a monitoring area or are only affected by temperature changes.Damage indices are defined after the Lamb wave signals are processed by Fourier transform,and a Monte Carlo procedure is used to obtain the damage threshold value for the damage indices at the undamaged state.If the damage indices in the operation state exceed the threshold value,the presence of damage is determined.Then,a probabilistic damage imaging algorithm displaying probabilities of the presence of damage within the monitoring area is adopted to fuse information collected from multiple actuator-sensor paths to identify the location of damage.Damage indices under damaged state are used to generate the diagnostic image.Experimental study on a stiffened composite panel with random temperature changes is performed to demonstrate the effectiveness of the proposed method.

数学试卷给我们教学的启示与思考

“一石激起千层浪”是对2024年九省联考最恰当的描述,因为试题个数减少、分值变化、顺序调整、思维量增加、新定义考题等若干问题在该卷中突然出现。“为什么对高考数学试卷要作如此大的调整”“结构改变是机遇还是挑战”“高考数学试卷真是这样的结构吗”……在这些疑惑下,大家倍加期待2024年高考数学试卷分析。

Salt-Water Transport in Unsaturated Soils Under Crop Planting: Dynamics and Numerical Simulation

A laboratory salt-water dynamics experiment using unsaturated soils in packed silt loam and clay soil columns withdifferent soil texture profiles and groundwater levels under crops were conducted to study the changes of salt-waterdynamics induced by water uptake of crops and to propose the theoretical basis for the regulation and control of salt-water dynamics as well as to predict salinity levels. The HYDRUS 1D model was applied to simulate the one-dimensionalmovement of water and salt transport in the soil columns. The results showed that the salts mainly accumulated in theplow layer in the soil columns under crops. Soil water and salt both moved towards the plow layer due to soil waterabsorption by the crop root system. The salt contents in the column with lower groundwater were mostly greater thanthose with high groundwater. The water contents in the soil columns increased from top to the bottom due to plant rootwater uptake. The changes in groundwater level had little influence on water content of the root zone in the soil columnswith crop planting. Comparison between the simulated and the determined values showed that model simulation resultswere ideal, so it is practicable to do numerical simulation of soil salt and water transport by the HYDRUS 1D model.Furthermore, if the actual movement of salt and water in fields is to be described in detail, much work needs to be done.The most important thing is to refine the parameters and select precise boundary conditions.

Registration of image feature points using differential evolution

This paper introduces a robust global nonlinear optimizer—differential evolution(DE),which is a simple evolution algorithm to search for an optimal transformation that makes the best alignment of two sets of feature points.To map the problem of matching into the framework of DE,the objective function is proportional to the registration error which is measured by Hausdorff distance,while the parameters of transformation are encoded in floating-point as the functional variables.Three termination criteria are proposed for DE.A simulation of 2-dimensional point sets and a similarity transformation are presented to compare the robustness and convergence properties of DE with genetic algorithm’s (GA).And the registration of an object and its contour model have been demonstrated by using of DE to natural images.

Distribution of electric field for carbon nanotube assembly: Simulation (I)

The distribution of electric field for the alignment and attachment of carbon nanotubes (CNTs) was simulated. To be attached at the desired place, the aligned and attracted CNTs should be stayed in the desired area called the stable region or the quasi-stable region for an instant where the change of electric field is minimized. Since the conical electrode has the very narrow sized quasi-stable region, few CNTs can be attached. The rectangular electrodes have a wide stable region, so lots of CNTs can be attached. The results indicate that the round electrode which has a proper sized quasi-stable region is more effective for aligning and attaching a single CNT than the conical or rectangular shaped electrodes.

Response of fuzzy clustering on different threshold determination algorithms in spectral change vector analysis over Western Himalaya, India

Abstract： Change detection is a standard tool to extract and analyze the earth＇s surface features from remotely sensed data. Among the different change detection techniques, change vector analysis （CVA） have an exceptional advantage of discriminating change in terms of change magnitude and vector direction from multispectral bands. The estimation of precise threshold is one of the most crucial task in CVA to separate the change pixels from unchanged pixels because overall assessment of change detection method is highly dependent on selected threshold value. In recent years, integration of fuzzy clustering and remotely sensed data have become appropriate and realistic choice for change detection applications. The novelty of the proposed model lies within use of fuzzy maximum likelihood classification （FMLC） as fuzzy clustering in CVA. The FMLC based CVA is implemented using diverse threshold determination algorithms such as double-window flexible pace search （DFPS）, interactive trial and error （T＆E）, and 3x3-pixel kernel window （PKW）. Unlike existing CVA techniques, addition of fuzzy clustering in CVA permits each pixel to have multiple class categories and offers ease in threshold determination process. In present work, the comparative analysis has highlighted the performance of FMLC based CVA overimproved SCVA both in terms of accuracy assessment and operational complexity. Among all the examined threshold searching algorithms, FMLC based CVA using DFPS algorithm is found to be the most efficient method.

Variation of hydraulic gradient in nonlinear finite strain consolidation

In the research field of ground water, hydraulic gradient is studied for decades. In the consolidation field, hydraulic gradient is yet to be investigated as an important hydraulic variable. So, the variation of hydraulic gradient in nonlinear finite strain consolidation was focused on in this work. Based on lab tests, the nonlinear compressibility and nonlinear permeability of Ningbo soft clay were obtained. Then, a strongly nonlinear governing equation was derived and it was solved with the finite element method.Afterwards, the numerical analysis was performed and it was verified with the existing experiment for Hong Kong marine clay. It can be found that the variation of hydraulic gradient is closely related to the magnitude of external load and the depth in soils. It is interesting that the absolute value of hydraulic gradient(AVHG) increases rapidly first and then decreases gradually after reaching the maximum at different depths of soils. Furthermore, the changing curves of AVHG can be roughly divided into five phases. This five-phase model can be employed to study the migration of pore water during consolidation.

Functionality of Protein Isolates from Argentine Anchovy （Engraulis anchoita） Residue Obtained Using pH Shift Processing

The aim of this study was to obtain a protein isolate from Argentine anchovy （Engraulis anchoita） residue produced using the pH shifting process, with acid and alkaline solubilization and isoelectric precipitation of the protein, and evaluate their functional properties. The lowest solubility was obtained at pH 5 where 8.32% and 2.96% were found for acid and alkali respectively. The highest solubility was obtained at extreme pH. The maximum water holding capacity was presented by the alkaline protein isolate at pH 11 （9.63 g H20/g protein）. The oil holding capacity was 4.20 mL/g protein, 7.26 mL/g of protein for the acid and alkaline protein isolates, respectively. The strain showed higher oil holding capacity in alkaline pH, lower solubility in pH near the protein isoelectric point and a lower capacity to retain water in extreme pH when compared with the acid isolate.

Numerical analysis on stability of surrounding rock mass around deep roadway

Numerical simulations of the deep roadway were carried out through application of the strain-softening constitutive model. Differences between the deep and shallow roadway of the rock bearing structure were analyzed. Influences of the supporting resistance on the rock bearing structure at the deep roadway were discussed. The results show that there is alternation of strong and weak strength-softening region in the surrounding rock of deep roadway. However, the increase in the supporting resistance cuts down the size of strength-softening region of surrounding rock, decreases its strength-softening degree, and im- proves the stress distribution condition of the surrounding rock mass. It is concluded that the supporting resistance can raise the self-supporting ability of surrounding rock through controlling its strength-softening so as to make the rock bearing structure of deep roadway stable.

Classification of Country Patterns in the World Based on Their Levels of Economy and Emission Process of Greenhouse Gases

According to the authoritative data involving social economic indicators and greenhouse gas （GHG） emission from the international universal database, the levels and processes of economic development and GHG emission in major economic groups, nations and regions of the world are simultaneously analyzed. Obtaining Gross Domestic Product （GDP） and emission per capita from various countries and regions in the past 40 years as the standard, countries and regions in the world are divided into six groups： countries with low emission per capita and low economic level （IA）, countries with low emission per capita and medium economic level （IIA）, countries with low emission per capita and high economic level （IIIA）, countries with high emission per capita and medium economic level （liB）, countries with high emission per capita and high economic level （IIIB）, countries with high emission per capita and low economic level （IB）. Countries belong to IB are quite rare in the study period, while the first five groups correspond to the poor regions, main developing countries, economically transitional countries with rapid economic development, rich islands and developed North America and Europe respectively. Data analysis shows that there is a close relationship between emission and economic development of different countries and regions. The composition relationship between economic development of different countries and regions is relatively stable over a long period of time. From 1970 to 2005, rising trends existed in the economic development of most countries and regions. However, the emission had a significant increase in a small part of countries and regions. In other words, for those with high emission, the emission level is always high. But for those with low GHG emission, the emission does not increase too much. The main processes of the change of countries pattern from IA to IIA and from II B to IIIB, occurring in the 1970s and from the late 1970s to the 1980s respectively. That result has .a significant enlightening effect in understanding the relationship between emission and eco- nomic development and its historical process of various countries and in choosing the position of our country in the future climate diplomatic negotiations.

语境理解指导下的完形填空应答

新高考考情分析一、题型、题量及分值变化2021年新高考英语试卷相较于传统全国卷,在题型、题量及分值上均有所调整。其中,完形填空试题的题量由20题减至15题,每小题的分值由1.5分调整至1分,总分由30分减至15分。二、考点分布完形填空部分仍注重对实词的考查,尤其是动词和形容词的词义辨析。

Fiber-Optic Surface Plasmon Resonance Sensor With Multi-Alternating Metal Layers for Biological Measurement

Optical fiber based SPR sensors have attracted more and more attention due to their unique advantages over the prism-based SPR sensors. A novel fiber-optic SPR sensor with multi-alternating metal layers for biochemical analysis is presented in this paper. Based on the fundamental SPR theory of the fiber optic sensing technology, we theoretically investigated the effects of the existence of alternating layers deposited on sensing region SPR wavelength changes. The emphasis was placed on the numerical simulation of the fiber-optic SPR sensor＇s sensitivity which could be affected by its technical parameters such as the metal thickness, number of alternating layers. Results showed that, compared to the normal SPR sensor with the single metal layer, the proposed sensor had a wider detecting range of the refractive index and higher sensitivity, which can find applications in biological analysis.

HENIG GLOBALLY EFFICIENCY FOR SET-VALUED OPTIMIZATION AND VECTOR VARIATIONAL INEQUALITY

This paper deals with Henig globally efficiency in vector optimization involving generalized cone-preinvex set-valued mapping. Some properties of generalized cone-preinvex set-valued map are derived. It also disclose the closed relationships between Henig globally efficiency of generalized conepreinvex set-valued optimization problem and Henig globally efficiency of a kind of vector variational inequality.

Numerical study of thermal history in laser aided direct metal deposition process

Temperature evolution in the laser aided direct metal deposition (LADMD) process has considerable influence on the micro-structure and properties of the final part. A 3D transient finite element model was developed to study the temperature evolution during the multilayer LADMD process. To make the property analysis from thermal history easier, a critical temperature specific to thermal history was defined and the distribution of it in the part was also discussed. The simulation results indicated that the critical temperature can make the property analysis from thermal history easier. Thermal history of all the deposited materials was similar. It was also concluded that process parameters needed to be time-varying according to the real-time temperature field during the process.