International Trade Needs Standardization in China

这篇文章介绍国际贸易过程简化和标准化的概念，并且而且，说明 implememt 过程和方法它为国际贸易过程简化和标准化训练提出建议。

Bio-screening and quantification of methyl paraben in vinegar and coconut juice separated by HPTLC

As a widely used food preservative,methyl paraben was experimentally evidenced with serious hormonelike adverse effects.Herein,a high performance thin-layer chromatography platformed bioluminescent bioautography and image analysis for the selective quantification and confirmation of methyl paraben was proposed and validated in vinegar and coconut juice.First,the detectability of the bioautography to the analyte on different layer materials was estimated,revealing that normal silica gel was the best choice.After that,the liquid of sample extract and working solution were separated to overcome the background noises due to co-extracted matrices.The separation result was then coupled to the optimized bioautography,enabling instant and straightforward screening of the targeted conpound.For accurate quantification,bioluninescent inhibition pattern caused by the analyte was processed by image analysis,giving useful sensitivity(LOD>16 mg/kg),precision(RSD<10.1%)and accuracy(spike-recovery rate 76.9%-112.2%).Finally,the suspected result was confirmed by determining its MS fingerprint,further strengthening the reliability of screening.

Research on the Evaluation System of National Standardization

标准化在不同国家收到改变的注意。基于中国国家标准化地位，这篇论文将国家标准化的一个评估系统放在逻辑，全面和操作性的原则上，考虑国家标准和标准化活动。评估系统通过四个方面评估国家标准化发展水平：标准开发，标准实现，支持措施的标准化，和在国际标准化的参予。这个评估系统提供一个合理基础评估国家标准化开发水平。调查证明如果中国想要提高它的标准化发展水平，中国需要改进它的标准发展水平，加强标准的牵连和申请，扩展标准化支持措施并且连续地改进在国际标准化的参予的水平。

Research on the Evaluation System of National Standards

This paper presents an evaluation system of national standardlevels composed of certain indicators and their respective weights.The goalof quantitatiye evaluation of national standards was achieved by expels decidingon indicators of a single national standard.This evaluation system provideda reasonable basis to evaluate the national standard level.It will alsoplay an important role in regulating standards and improving the nationalstandards level.

Implementation of Standardization and Intellectual Property Strategy

Inclusion of intellectual property in standards brings importantchanges to the global competition model.Based on the furious international circumstances,Outline of the National Intellectual Property Strategy was published in2008,indicating the strategic direction of intellectual property involved in standards.This article analyzes relative items from innovation and standard strategy implemen-tation aspects,and makes some suggestions.

Identification and characterization of microRNAs in raw milk during different periods of lactation, commercial fluid, and powdered milk products

最近的婴儿的公式奶粉污染事件证明了在牛奶质量控制的经典标记或标准在识别鈥渕a nipulated 鈥 ? 是不够的差质量的牛奶。在现在的学习，我们第一次证明奶牛牛奶包含大量 microRNAs ( miRNAs )并且牛奶特定的 miRNAs 的唯一的表示侧面能为未加工的牛奶和牛奶相关的商业产品的质量控制用作新奇指示物和可能的新标准，例如液体牛奶和粉状的公式牛奶。用定序的 Solexa，首先，我们系统地在未加工的牛奶屏蔽了 miRNA 表示并且在未加工的牛奶识别了 245 miRNAs 的一个总数。不同于层次在哺乳的不同时期是其表达式将近相同的另外的经典 biomarkers，单个 miRNAs 能显著地在哺乳过程期间被改变，含有那 miRNAs 可以是更精确的指示物反映牛奶的优秀改变。第二，使用 TaqMan 基于探查的 miRNA 量的 RT-PCR ，我们进一步识别了七 miRNAs 重要地在整个哺乳过程，和更多有相对一致的表情，这七牛奶特定的 miRNAs 的表示侧面能为区别用作理想的 biomarker 差质量或从纯未加工的牛奶的 鈥渕a nipulated 鈥?牛奶，象为商业乳制品的质量控制一样，例如液体，牛奶和粉状的公式挤。一起，我们的调查结果为为决定未加工的牛奶或牛奶相关的商业产品的质量理解牛奶 miRNAs 和一个新潜在的标准的生理的角色提供一个基础。

Characterization of Aquabacterium parvum sp. Strain B6 during Nitrate-Dependent Fe(Ⅱ) Oxidation Batch Cultivation with Various Impact Factors

In order to assess the capacity of Aquabacterium parvum sp. strain B6 for nitrate-dependent Fe(Ⅱ) oxidation,batch cultivation was conducted, and its ability to oxidize Fe(Ⅱ) coupled to nitrate reduction in the presence of diverse organic substrates was studied. Meanwhile, the nitrate-removal rate of B6 with various impact factors was further optimized by the response surface methodology(RSM). The results show that strain B6 is capable of utilizing different organic compounds as substrates for nitrate reduction. Compared with yeast extract, B6 showed a greater potential of chemical oxygen demand(COD)degradation and cell proliferation with acetate and glucose mediums, respectively, while citrate was not beneficial for this process due to its low consumption rate. RSM analysis demonstrated that the maximum nitrate-reduction rate of 30.64% could be achieved with an initial pH of 7.4,incubation temperature of 25.0 °C, and carbon source concentration of 266.10 mg/L.

Review on the Work of Agriculture Ontology Research Group

This paper introduces efforts and achievements of Agriculture Ontology Service Research Group of Agricultural Information Institute of Chinese Academy of Agriculture Sciences in last 10 years. It summarizes the research on ontology construction methodology, ontology management system, ontology application and etc.

What factors determine the mass elevation effect of the Tibetan Plateau?

The mass elevation effect(MEE)of the Tibetan Plateau(TP)has attracted the attention of geographers because of its significant influence on the Asian climate,snow line,timberline,and other important climate-ecological boundaries of the plateau and on global ecological patterns.In recent years,much progress has been made in quantifying the MEE of TP.However,factors that affect the size of MEE have not been examined in depth,and the key factors still remain unclear.Based on quantification of MEE for each mountain basal elevation plot,this study identifies the factors that contribute significantly to MEE of the plateau.Seven factors are considered,including mountain basal elevation,distance from the core zone of MEE,thermal continentality,maximum elevation,height difference,area,and difference of underlying surface(with the yearly max"Normalized Difference Vegetation Index"(NDVI)serving as a quantitative indicator).We also used these seven factors as independent variables to develop a multiple linear regression model for MEE of the plateau.Results show that:(1)the determination coefficient(R2)of the model reaches as high as 0.877,and the contributions of mountain basal elevation,distance from the core zone of MEE,thermal continentality,maximum elevation,topographical height difference,area,and NDVI are 39.77%,23.02%,14.48%,5.78%,11.41%,2.92%,and 2.62%,respectively,with mountain basal elevation and the distance from the core of MEE as the most important factors;(2)thermal continentality and MEE are significantly correlated,and maximum elevation only has a coupling relationship with MEE,with height difference and NDVI contributing little to MEE.This study deepens our understanding of MEE and its forming factors in the Tibetan Plateau.

Text Classification Using Support Vector Machine with Mixture of Kernel

Recent studies have revealed that emerging modern machine learning techniques are advantageous to statistical models for text classification, such as SVM. In this study, we discuss the applications of the support vector machine with mixture of kernel (SVM-MK) to design a text classification system. Differing from the standard SVM, the SVM-MK uses the 1-norm based object function and adopts the convex combinations of single feature basic kernels. Only a linear programming problem needs to be resolved and it greatly reduces the computational costs. More important, it is a transparent model and the optimal feature subset can be obtained automatically. A real Chinese corpus from FudanUniversityis used to demonstrate the good performance of the SVM- MK.

Establishing a System for Food Recalls to Protect Food Quality and Safety in China

There are no explicit laws concerning food recalls in China; moreover, some related regulations have weaknesses. China should first create a system of laws and regulations governing food recalls, establish a system to recall defective food, and strengthen administrative and legal remedial mechanisms related to consumer rights.

YOLO-Banana:An Effective Grading Method for Banana Appearance Quality

The increasing trend towards independent fruit packaging demands a high appearance quality of individually packed fruits.In this paper,we propose an improved YOLOv5-based model,YOLO-Banana,to effectively grade banana appearance quality based on the number of banana defect points.Due to the minor and dense defects on the surface of bananas,existing detection algorithms have poor detection results and high missing rates.To address this,we propose a densitybased spatial clustering of applications with noise(DBSCAN)and K-means fusion clustering method that utilizes refined anchor points to obtain better initial anchor values,thereby enhancing the network’s recognition accuracy.Moreover,the optimized progressive aggregated network(PANet)enables better multi-level feature fusion.Additionally,the non-maximum suppression function is replaced with a weighted non-maximum suppression(weighted NMS)function based on distance intersection over union(DIoU).Experimental results show that the model’s accuracy is improved by 2.3%compared to the original YOLOv5 network model,thereby effectively grading the banana appearance quality.

Review of China’s information and documentation standardization work

China National Information and Documentation Standardization Technical Committee(SAC/TC4),founded in 1979,is the national technology standardization organization engaged in the field of information and documentation in China.Its institutional settings,scope and content of the work exactly correspond to the Information and Documentation Standardization Technical Committee of International Organization for Standardization(ISO/TC46).For 30 years,SAC/TC4 has always harmonized and organized national standardization work in accordance with the standard working system of ISO,established a clear standard constituting strategy and principles,set up an open mechanism for the standards development,promoted China’s information and document standardization,and obtained great achievements and valuable experiences.Following the rapid development of information and network technologies,standardization work in the field of international information and documentation is facing new challenges.SAC/TC4 also needs to cope with the situation by adopting a variety of strategies.

Large-Scale Ontology Development and Agricultural Application Based on Knowledge Domain Framework

The key activity to build semantic web is to build ontologies. But today, the theory and methodology of ontology construction is still far from ready. This paper proposed a theoretical framework for massive knowledge management- the knowledge domain framework （KDF）, and introduces an integrated development environment （IDE） named large-scale ontology development environment （LODE）, which implements the proposed theoretical framework. We also compared LODE with other popular ontology development environments in this paper. The practice of using LODE on management and development of agriculture ontologies shows that knowledge domain framework can handle the development activities of large scale ontologies. Application studies based on the described briefly. principle of knowledge domain framework and LODE was

企业产品标准自我声明公开制度（英文）

As the top priority of standardization activities,enterprise standardization plays a decisive role in supporting and promoting economic and social development.The government filing system for enterprise product standards,the main management tool of enterprise standardization,plays a significant role in

Modeling and Channel Estimation for Piezo-Acoustic Backscatter Assisted Underwater Acoustic Communications

Relying on direct and converse piezoelectric effects,piezo-acoustic backscatter(PAB)technology reflects ambient acoustic signals to enable underwater backscatter communications at near-zero power,which was first realized through a prototype.In this paper,we propose a mathematical model of the PAB assisted underwater acoustic(UWA)communication,and address the sparse channel estimation problem.First,we present a five-stage backscatter process to derive the backscatter coefficient,and propose the channel model for the shallow-water communications.Then,we formulate the shallow-water acoustic channel estimation problem as a sparse vector recovery one according to the compressed sensing theory,and leverage the orthogonal matching pursuit(OMP)algorithm to obtain the channel estimator.Finally,simulation results are provided to corroborate our proposed studies.

Standards System and Evaluation Indicators System for Environmental Protection Products

环境保护产品和设备是规定支持为的重要物质基础和保险到减少的精力使用和排出物的战略目的实现当改进资源经济时与环境好心在持续 fashion.Here 的社会大楼，以及持续发展经济和环境，为环境保护产品的标准系统和评估指示物系统的框架基于 pr