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1、中国网络媒体受众调查数据报告2007第三期报告出处：阳市咨询发布日期：2007年11月12日 09:09电子邮箱品牌渗透及用户特征状况本次调查关于电子邮件收发情况的结果显示，每周有84.8的网民会收发电子邮件，周平均使用率为3.7天。从网民使用的网站提供的邮箱品牌看，网易独占熬头，在18岁以上网民中约有8500万人使用该公司邮箱，其中163约有5900万用户，渗透率达63.8%，在所有网站邮箱中排名第一；而126也有约2600万用户，渗透率为27.9%，在所有网站邮箱中排名第三。使用新浪邮箱的网民约有3900万，渗透率为41.7%,在所有网站邮箱中排名第二。其它渗透率比较高的网站电子邮箱还有Q
2、Q（23.2%）、Yahoo（22.1%）、Hotmail-MSN（17.5%）,以及搜狐（12.5%），而TOM和 Google Gmail的渗透率分别为5.9%和4.3%。使用单位/学校提供的邮箱比例为9.2%，但其使用频度明显高于网站邮箱。使用各网站邮箱的网民特征也有所不同。网易163邮箱的用户中，25岁以下的年轻人要多一些；而新浪和网易126邮箱的用户特征相近，都是25岁以上人士比例高；QQ邮箱的用户特征与网易163有些相似，但男性使用的比例更高；Hotmail-MSN邮箱用户中25岁以上白领比较多，特别是女性；而搜狐邮箱的用户主要是一些网龄比较长的老网民。下期报告将重点发布下期报告将
3、重点发布即时通讯的品牌渗透率、周到达率、周访问频度，敬请关注！欲了解此报告更多内容或想订阅报告，请登陆。图表3.1 电子邮箱品牌渗透率和使用状况图表3.2 不同身份特征网民的电子邮箱品牌渗透率（%）图表3.3 不同年龄和性别特征网民的电子邮箱品牌渗透率（%）图表3.4 不同区域网民的电子邮箱品牌渗透率（%）PIC_MY_4309Editors note: Judson Jones is a meteorologist, journalist and photographer. He has freelanced with CNN for four years, covering severe
4、weather from tornadoes to typhoons. Follow him on Twitter: jnjonesjr (CNN) - I will always wonder what it was like to huddle around a shortwave radio and through the crackling static from space hear the faint beeps of the worlds first satellite - Sputnik. I also missed watching Neil Armstrong step f
5、oot on the moon and the first space shuttle take off for the stars. Those events were way before my time.As a kid, I was fascinated with what goes on in the sky, and when NASA pulled the plug on the shuttle program I was heartbroken. Yet the privatized space race has renewed my childhood dreams to r
6、each for the stars.As a meteorologist, Ive still seen many important weather and space events, but right now, if you were sitting next to me, youd hear my foot tapping rapidly under my desk. Im anxious for the next one: a space capsule hanging from a crane in the New Mexico desert.Its like the set f
7、or a George Lucas movie floating to the edge of space.You and I will have the chance to watch a man take a leap into an unimaginable free fall from the edge of space - live.The (lack of) air up there Watch man jump from 96,000 feet Tuesday, I sat at work glued to the live stream of the Red Bull Stra
8、tos Mission. I watched the balloons positioned at different altitudes in the sky to test the winds, knowing that if they would just line up in a vertical straight line we would be go for launch.I feel this mission was created for me because I am also a journalist and a photographer, but above all I
9、live for taking a leap of faith - the feeling of pushing the envelope into uncharted territory.The guy who is going to do this, Felix Baumgartner, must have that same feeling, at a level I will never reach. However, it did not stop me from feeling his pain when a gust of swirling wind kicked up and
10、twisted the partially filled balloon that would take him to the upper end of our atmosphere. As soon as the 40-acre balloon, with skin no thicker than a dry cleaning bag, scraped the ground I knew it was over.How claustrophobia almost grounded supersonic skydiverWith each twist, you could see the wr
11、inkles of disappointment on the face of the current record holder and capcom (capsule communications), Col. Joe Kittinger. He hung his head low in mission control as he told Baumgartner the disappointing news: Mission aborted.The supersonic descent could happen as early as Sunday.The weather plays a
12、n important role in this mission. Starting at the ground, conditions have to be very calm - winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our day-to-day
13、 weather lives. It will climb higher than the tip of Mount Everest (5.5 miles/8.85 kilometers), drifting even higher than the cruising altitude of commercial airliners (5.6 miles/9.17 kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause), he can expect a lot
14、 of turbulence.The balloon will slowly drift to the edge of space at 120,000 feet (22.7 miles/36.53 kilometers). Here, Fearless Felix will unclip. He will roll back the door.Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform.Below, the Earth becomes th
15、e concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, hell be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end.Skydiver preps for the big jump待添加的隐藏文字内容1When he jumps,
16、he is expected to reach the speed of sound - 690 mph (1,110 kph) - in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him completely.If he goes too fast or spins out of control, he
17、 has a stabilization parachute that can be deployed to slow him down. His team hopes its not needed. Instead, he plans to deploy his 270-square-foot (25-square-meter) main chute at an altitude of around 5,000 feet (1,524 meters).In order to deploy this chute successfully, he will have to slow to 172
18、 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds.Even if everything goes as planned, it wont. Baumgartner still will free fall at a speed that would cause you and me to pass out, and no parachute is guaranteed to work higher than
19、25,000 feet (7,620 meters).It might not be the moon, but Kittinger free fell from 102,800 feet in 1960 - at the dawn of an infamous space race that captured the hearts of many. Baumgartner will attempt to break that record, a feat that boggles the mind. This is one of those monumental moments I will always remember, because there is no way Id miss this.