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研究所、轉學考(插大)◆圖書資訊學導論
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110年 - 110 國立臺灣師範大學_碩士班招生考試_圖書資訊學研究所:圖書資訊學導論#103345
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(二)如何辨識一個期刊是否屬於掠奪性期刊?(試說明掠奪性期刊的特 徵)(20分)
相關申論題
一、中翻英(40%) 習近平在中南海主持召開的經濟社會领域專家座談會上說新冠疫情增加了保護主義傾向,阻礙了世界 經濟,擾亂了全球供應鏈。習近平再次强調中國要提高創新能力,在關鍵的核心技術方面要早取得突破。 外部市場風險增加使中國面對“劇烈化時期”,他在强調依賴內循環促進增長的同時,特别強調了本土 科技創新的重要性。在談到中國科技創新時,習近平在最近的座談會提到中國的「兩個優勢」,即通過政府發揮集中力量辦大事的優勢和中國規模巨大的市場優势。中國媒體報道特別提到中國互聯網企業的迅速崛起得益於國内巨大的市場潜力、人口規模和所謂大様本、大數據的競争優勢。中國京東集團副總裁沈建光在中國新聞周刊發表文章警告說,中美在貿易、金融科技等領域全面對抗,不能低估發生產業鏈轉移的 風險。他認為當美國對中國的壓力經貿領域全面上升到科技領域的時候,來自美國的技術限制、技術脫鉤 以及美國糾集盟國在5G領域對為技術的抵制,增加了中國被從全球科技產業鏈中排除出去的風險。為 應對可能出現的產業键轉移險,沈建光認為中國的應對手段包括在內推動產業數字化和智能化轉型,加 大知識權保護力度,进一步改善營商環境,在外推勤一一路戰略。(來源:BBC中文網,2020年8月 26日)
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1. China's rise has radically altered the politics of one of the most prominent and controversial issues in the global trading system: agriculture subsidies. Agricilture subsidics depress global prices and undermine the competitiveness and livelihoods of poor farmers, and therefore have been long seen as a symbol of the injustice of the trading system. China's support to agriculture is dominated by market price support, direct payments based on production, and input subsidies, which are the most trade-distorting means of providing agricultural assistance. Market price support, through the purchase of commodities by state agencies at a minimum guaranteed price, represents an important pillar of China's agricultural support. Following the 2007-08 Global Food Crisis, which heightened food security concerns, China doubled the value of its agricultural support. China's policy of supporting producers through the purchase of agricultural commodities at above-market prices has led to the accumulation of massive state reserves. China has amassed 60% of the world's cotton supplies, over 50% of its comn, 40% of wheat and 21% of soybeans. To dispose of these large stocks, the government auctions them off below cost, while using various measures to discourage imports. Given the size of its state reserves, China's policies exert 'a colossal influence' on world prices. Price support and general input subsidies have been the main instruments used in China, because these policies yield quick returns and are relatively easy to operate, as opposed to less trade-distorting direct support, which is less effective in boosting food production. Critics argue, however, that if its objective is to support its farmers, China has other, more effective policy options s at its disposal, which would have less barmful effects on global markets and producers in other countries. There are also better ways to address rural poverty and support rural development, including through providing improved rural pensions, healthcare, education and infrastructure. But China has vigorously defended its agricultural subsidies at the WTO, maintaining that it is providing'nec ssary and essential support' to its rural sector. Indeed, China argues that it is simply claiming the right to support its agricultural sector, as the US and other advanced-industrialized states have long done. (Source: Kristen Hopewell: US-China Conflict in Global Trade Governance)
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2. Hours after the Chinese government imposed a record $2.8 billion fine on Alibaba, a veteran internet entrepreneur urged regulators to do something similar to his company's biggest competitor. Douyin, TikTok's Chinese sister service, is suing Tencent, China's biggest internct company, to allow users to share videos to Tencent's ubiquitous WeChat messaging service. Lawsuits are flying and tempers are flaring on the Chinese internet, home to the world's largest single group of internet users. Beijing made it abundantly clear late last ycar that it was serious about curbing the power of a handful of companies that dominate online life in China. Now China's internet companies are kowtowing to Beijing and trying to make their rivals look bad instead of conecting their own anticompetitive behavior. If the Chinese government's antimonopoly eampaign works, the country's consumers stand to benefit. But the battle between companies could end up even further empowering the Chinese government, which already keeps a tight grip over online content. That could make the Communist Party, which controls the government and the court system alike, the ultimate arbiter over the industry. Competition wouldn't decide winners. Beijing would. (Source: 'Dog Biting Dog : China's Online Fight Could Further Empower Beijing, April 29, 2021)
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1. The large window shown in Fig. 1 is opened using a hydraulic cylinder AB. If the cylinder extends at a constant rate of 0.2 m/s, determine the angular velocity and angular acceleration of the window at the instant θ = 30°. (25%)
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2. The ram R shown in Fig. 2 has a mass 200 kg and is released from rest 0.75 m from the top of a spring, A, that has a stiffness kA = 12 kN/m. If a second spring B, having a stiffness kB = 15 kN/m, is nested in A, determine the maximum displacement of A needed to stop the downward motion of the ram. The unstretched length of each spring is indicated in the Fig. 2. Neglect the mass of the springs. (25%)
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3. The movable bracket shown may be placed at any height on the 3-in.-diameter pipe. If the coefficient of static friction between the pipe and bracket is 0.2, determine the minimum distance x at which the load W can be supported. Neglect the weight of the bracket. (25%)
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4. A fixed crane has a mass of 2000 kg and is used to lift a 2400-kg crate. It is held in place by a pin at A and a rocket at B. The center of gravity of the crane is located at G. Determine the components of the reactions at A and B. (25%)
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1. (20%) The 500-N force F is applied to the vertical pole as shown. (1) Write F in terms of the unit vectors i and j and identify both its vector and scalar components. (2) Determine the scalar components of the force vector F along the x'- and y'-axes. (3) Determine the scalar components of F along the x- and y'-axes. (7%) (6%) (7%)
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2. (20%) The 8-kg cylinder is latched in place with the 60 kN/m spring compressed a distance of 20 mm. If the two latches are simultaneously removed, determine (1) the maximum height y reached by the cylinder and (2) the velocity of the cylinder when the spring has moved up 12 mm. The cylinder is not attached to the spring. (10%)
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3. (20%) A race car going 150 km/h at a decelerates at a constant rate to 50 km/h at B in a distance s=160 m in order to negotiate on unbanked turn. If the effective coefficient of friction between tires and road is 0.80, and if the car begins to skid at B, determine the radius of curvature p of the path at B.
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110年 - 110 國立臺灣師範大學_碩士班招生考試_圖書資訊學研究所:圖書資訊學導論#103345
110年 · #103345