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乳清蛋白-果胶高内相乳液凝胶对低脂再制奶酪的品质影响

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食品科学 2025年第2期46卷 57-64页

作者：李红娟李振任钏袁玉京李可邱晓豹李洪波于景华天津科技大学食品科学与工程学院食品营养与安全国家重点实验室天津300457

以乳清蛋白和果胶、葡聚糖为主要原料,采用酸诱导法制备乳清蛋白-果胶乳液凝胶(whey protein-pectin emulsion gel,WP)和乳清蛋白-葡聚糖乳液凝胶(whey protein-glucan emulsion gel,WG),比较35%、75%分散相体积分数凝胶(分别记为WP35、... 详细信息

以乳清蛋白和果胶、葡聚糖为主要原料,采用酸诱导法制备乳清蛋白-果胶乳液凝胶(whey protein-pectin emulsion gel,WP)和乳清蛋白-葡聚糖乳液凝胶(whey protein-glucan emulsion gel,WG),比较35%、75%分散相体积分数凝胶(分别记为WP35、WG35、WP75、WG75)的功能特性,并进一步探究高内相乳液凝胶作为脂肪替代物在低脂再制奶酪中的代脂效果。结果表明:WP75的平均粒径最小,脂肪分布均匀,蛋白质网络结构稳定。乳液凝胶样品在0.1~10 Hz内弹性模量(G′)和黏性模量(G″)都随油相体积分数的升高呈上升趋势,其中WP75抵抗形变能力、热稳定性及持水性都优于其他样品。样品15%-WP75(添加WP75,脂肪质量分数15%的再制奶酪)油析性减弱,熔化性增强,质构特性与全脂对照无明显差异。研究表明乳清蛋白与果胶制备的高内相乳液凝胶在低脂奶酪产品有较好的脂肪替代效果,在低脂乳制品加工中具有良好的应用潜力。

关键词：乳清蛋白果胶葡聚糖高内相乳液凝胶低脂再制奶酪

Multi-branch query tree protocol for solving RFID tag collision problem

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The Journal of China Universities of Posts and Telecommunications 2008年第4期15卷 51-54页

作者： JIAO chuan-hai WANG ke-ren Laboratory 304 of Communications and Information Systems Electronic Engineering Institute Hefei 230037 China

The technology of anti-collision is a key point in radio frequency identification （RFID） system. To avoid data collision, there are two approaches： ALOHA based algorithm and binary tree （BT） based algorithm. However, these cannot solve the collision problem completely, especially when the tag quantity is big and the tag ID is long. In this article, we present a multi-branch query tree （MBQT） protocol based on balanced incomplete block design （BIBD） code, and use 16-bit vectors derived from the BIBD as query prefix symbols of RFID reader. Compared with the conventional anti-collision algorithm, the theoretic analysis and simulation show that the proposed protocol improves the identification efficiency.

关键词： RFID BIBD MBQT

Ehrenfest Time at the Transition from Integrable Motion to Chaotic Motion

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Chinese Physics Letters 2021年第3期38卷 29-32页

作者： chuan zhao Biao Wu International Center for Quantum Materials School of PhysicsPeking UniversityBeijing 100871China Wilczek Quantum Center School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of Quantum Matter Beijing 100871China

Ehrenfest time depends differently on the Planck constant in integrable motion and chaotic motion. We study how its dependence on the Planck constant changes when there is a continuous transition from regular motion to chaotic motion. We find that the dependence is a weighted compromise between its two distinct dependences in regular and chaotic motions. The study is carried out with the system of periodically driven anharmonic oscillator. As the system is quite typical, the result may apply generally.

关键词： motion. chaotic system

Hochschild and Cyclic (Co)homology of Superadditive Categories

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Acta Mathematica Sinica,English Series 2015年第2期31卷 201-215页

作者： De ke zhao School of Applied Mathematics Beijing Normal University at Zhuhai

We define the ttochschild and cyclic （co）homology groups for superadditive categories and show that these （co）homology groups are graded Morita invariants. We also show that the Hochschild and cyclic homology are ... 详细信息

关键词： K-categories superadditive categories Hochschild (co)homology cyclic (co)homology,graded Morita equivalence Kunneth formula

RANDOMIZED POLICY OF A POISSON INPUT QUEUE WITH J VACATIONS

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Journal of Systems Science and Systems Engineering 2010年第1期19卷 50-71页

作者： Jau-chuan ke Kai-Bin HUANG Wen Lea PEARN Department of Applied Statistic National Taichung lnstitute of Technology Taichung 404 Taiwan China Department of Industrial and Engineering Management National Chiao Tutig University Hsing Chu 300 Taiwan China

This paper studies the operating characteristics of an M/G/1 queuing system with a randomized control policy and at most J vacations. After all the customers are served in the queue exhaustively, the server immediately takes at most J vacations repeatedly until at least N customers are waiting for service in the queue upon returning from a vacation. If the number of arrivals does not reach N by the end of the jth vacation, the server remains idle in the system until the number of arrivals in the queue reaches N. If the number of customers in the queue is exactly accumulated N since the server remains idle or returns from vacation, the server is activated for services with probability p and deactivated with probability （l-p）. For such variant vacation model, other important system characteristics are derived, such as the expected number of customers, the expected length of the busy and idle period, and etc. Following the construction of the expected cost function per unit time, an efficient and fast procedure is developed for searching the joint optimum thresholds （N＊,J＊） that minimize the cost function. Some numerical examples are also presented.

关键词： Cost 〈 p N 〉 -policy supplementary variable technique vacation

The New Minimum of Sea Ice Concentration in the Central Arctic in 2016

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Journal of Ocean University of China 2020年第3期19卷 569-576页

作者： WANG ke zhao Jinping College of Oceanic and Atmospheric Sciences Ocean University of ChinaQingdao 266100China key Laboratory of Physical Oceanography Ocean University of ChinaQingdao 266100China

In view of the extremely low sea ice concentration(SIC) appeared at high latitudes of the Arctic in the summer of 2010, the changes of SIC in the central Arctic from 2010 to 2017 were investigated in this paper based on the AMSR-E/AMSR-2 SIC products retrieved by the NT2 algorithm. The results show that the extremely low sea ice concentration in the central Arctic not only occurred in 2010 but also occurred again in 2016, and the daily average sea ice concentration(ASIC) reached a minimum of 0.70, which was significantly lower than the value of 0.78 in 2010 and became a new historical low record. A large area of sea ice in the sector 150°E–180° in 2010 disappeared in 2016, which was the most important difference to produce the new minimum. Also, the ice edge in 2016 retreated into the 85°N circle, whereas in 2010 it was far from the central Arctic. In 2010 and 2016, there were high correlations between the wind stress curl and the relative variation rate of ASIC, which indicates that wind stress curl(WSC) drove the divergence of sea ice. It directly leads to the decrease in the SIC and is the main cause of the extremely low SIC events. The results in this paper show that the decline of Arctic sea ice is represented by not only the reduction of sea ice coverage but also the reduction of SICs. The central Arctic has always been covered by large amount of sea ices, so the drastic reduction of SIC will not only change the structure of the ice field, but also lead to critical climatic effects that deserve further attention.

关键词： sea ice concentration AMSR-E/AMSR-2 central Arctic wind stress curl

Landform Classification for Community Siting: A case Study in Quxian County, China

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Journal of Mountain Science 2015年第4期12卷 1025-1037页

作者： zhao ke DENG zhao-hua Faculty of Architecture and Urban Planning Chongqing University key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing University School of Architecture South China University of Technology State key Laboratory of Subtropical Building Science South China University of Technology

This study is to explore a suitable method to classify landform, in order to support the decision making for community siting in mountainous *** first proposes the landform classification for community siting(LCCS) method with detailed discussions on its rationality and the chosen *** method is then tested and verified in Quxian *** LCCS method entails twograde parameters, which uses relative relief as the first grading parameter, slope as the second, followed by a synthesis process to form a suitable landform classification *** applying the LCCS method in Quxian county, the result shows that its use of watershed to identify geomorphometric units, and its use of the altitude datum concept, can effectively classify landform according to the local cultural traditions, and the economic and environmental *** verification result shows that comparing to the conventional methods, the LCCS method respects to people's daily experience due to its bottom-up *** not only help to minimize the disturbance to the nature when choosing locations for community development, but also helps to prepare more precise land management policies,which maximizes agricultural production and minimizes terrain transformation.

关键词： Landform classification Community siting Relative relief Slope Mountainous areas China

Research Status and Strategies for Cognitive Function in Schizophrenia

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上海精神医学 2018年第3期30卷 199-201页

作者： ke MA chuan SHI Peking University Sixth Hospital Beijing China

Cognition is divided into neurocognition and social cognition,both of which are interconnected with each other and yet are mutually ***,which is based on neuroanatomical structures,function connections,neuroelectrophy... 详细信息

关键词：精神分裂症认知功能神经解剖学神经功能认知过程生物学社会大脑

Synthesis of Diverse Aryliodine(Ⅲ)Reagents by Anodic Oxidationt

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Chinese Journal of Chemistry 2021年第3期39卷 627-632页

作者： Bing Zu Jie ke Yonghong Guo chuan He School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbinHeilongiang 150080China Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of CatalysisSouthern University of Science and TechnologyShenzhenGuangdong 518055China

Main observation and conclusion An anodic oxidation enabled synthesis of hypervalent iodinel(Ⅲ)reagents from aryl iodides is *** mild electrochem-ical conditions,a range of arylidine(Ⅲ)reagents including iodosylarenes,(difunctionaliodo)arenes,benziodoxoles and diaryliodoni-um salts can be efficiently synthesized and derivatized in good to excellent yields with high *** only electrons serve as the oxidation reagents,this method offers a more straightforward and sustainable manner avoiding the use of expensive or hazardous chemical oxidants.

关键词： Electrochemistry Oxidation Synthetic methods lodine Hypervalent compounds