The difference between Chinese and American

本文通过一位在美国留学的中国学生的视角,列举了中美两国在生活习惯、宗教信仰、家庭交流方式、餐饮品牌流行度、街头现象、教育安排、生育政策、交通方式及驾驶习惯、校园生活观念和饮食习惯等方面的差异。
Actually, this is an Email from my friends who is doing her studyin United States now, hope you can find some interesting things from this piece of words.
1. There is always toilet paper in the toilet. In china, we usually furnish own toilet paper. Also, the Americans sit on the toilets; while we squat a lot, especially in the public toilet s.
2. There are many churches in the US, while we don't have many in China . The majority of Chinese don't have religion, while many Americans sincerely believe there is a Heavenly Father or God and some of them spend money on a mission for 1+1/2 years without getting any paid.
3. American people say "thank you, I love you" and "please" to their family all the time, while we Chinese people seldom use those words. By the way, they love hugs.
4. MacDonald's, Ky. Fried Chicken, Pizza Hut in China are much more popular than those in the US.
5. I haven't seen any beggars or street venders on the street here, while we have many in China .
6. There are classes in the noon in Southern Virginia University, but whenI was in Shandong Normal University, we didn't have any classes from 12-2pm – that was usually for our noon naps!
7. Here are many families that have more than one child. I even saw some families that have more than six children! In china, we usually can have only one child since 1970's.
8. Car is the main transportation in the US. We now have more and more cars in China, but most people still mainly use buses, taxis, trains, or bicycles. Another thing is that I think we Chinese honked horns a lot when we are driving, while the Americans seldom do it.
9. I saw some young married students and their babies on campus, though I seldom saw those things happened in China. Two years ago in China, university students were not allowed to marry.
10. I think our Chinese are more conscious about our weight control. The Americans eat a lot of food that are easy for them to gain weight. They also like to eat raw vegetables and green salads, which is good for them; while we usuallyCOOK vegetables in China. I am also getting used to eat with fork and knife.
【电动汽车充电站有序充电调度的分散式优化】基于蒙特卡诺和拉格朗日的电动汽车优化调度(分时电价调度)(Matlab代码实现)内容概要:本文介绍了基于蒙特卡洛和拉格朗日方法的电动汽车充电站有序充电调度优化方案,重点在于采用分散式优化策略应对分时电价机制下的充电需求管理。通过构建数学模型,结合不确定性因素如用户充电行为和电网负荷波动,利用蒙特卡洛模拟生成大量场景,并运用拉格朗日松弛法对复杂问题进行分解求解,从而实现全局最优或近似最优的充电调度计划。该方法有效降低了电网峰值负荷压力,提升了充电站运营效率与经济效益,同时兼顾用户充电便利性。 适合人群:具备一定电力系统、优化算法和Matlab编程基础的高校研究生、科研人员及从事智能电网、电动汽车相关领域的工程技术人员。 使用场景及目标:①应用于电动汽车充电站的日常运营管理,优化充电负荷分布;②服务于城市智能交通系统规划,提升电网与交通系统的协同水平;③作为学术研究案例,用于验证分散式优化算法在复杂能源系统中的有效性。 阅读建议:建议读者结合Matlab代码实现部分,深入理解蒙特卡洛模拟与拉格朗日松弛法的具体实施步骤,重点关注场景生成、约束处理与迭代收敛过程,以便在实际项目中灵活应用与改进。
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