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<%
set newsproduct=server.CreateObject("ADODB.Recordset")
sqltext="select top 12 * from news where news10=3 order by news1 desc,id desc"
newsproduct.Open sqltext,cn,1,1
if newsproduct.bof or newsproduct.eof then
response.write "No Message!"
else
i=1
do while not newsproduct.EOF
set news6=newsproduct("news6")
set idd=newsproduct("id")
set news3=newsproduct("news3")
%>
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<%
i=i+1
newsproduct.movenext
loop
end if
newsproduct.close
set newsproduct=nothing
%>
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<%
id=request("id")
set rs=server.CreateObject("ADODB.Recordset")
if id<>"" then
sqltext="select * from news where id="&id&""
else
sqltext="select top 1 * from news where news10=3"
end if
rs.Open sqltext,cn,1,1
set news3=rs("news3")
set news5=rs("news5")
set news6=rs("news6")
set news8=rs("news8")
set news12=rs("news12")
%>
Hard-paste or "true" porcelain originated in China during the T'ang dynasty (618-907 A.D.); however, high quality porcelain comparable to modern wares did not develop until the Yuan dynasty (1279-1368 A.D.). Early Chinese porcelain consisted of kaolin (china clay) and pegmatite, a coarse type of granite. Porcelain was unknown to European potters prior to the importation of Chinese wares during the Middle Ages. Europeans tried to duplicate Chinese porcelain, but, unable to analyze its chemical composition, they could imitate only its appearance. After mixing glass with tin oxide to render it opaque, European craftspeople tried combining clay and ground glass. These alternatives became known as soft-paste, glassy, or artificial porcelains. However, because they were softer than genuine porcelain, as well as expensive to produce, efforts to develop true porcelain continued. In 1707 two Germans named Ehrenfried Walter von Tschimhaus and Johann Friedrich Bottger succeeded by combining clay with ground feldspar instead of the ground glass previously used.
Later in the eighteenth century the English further improved upon the recipe for porcelain when they invented bone china by adding ash from cattle bones to clay, feldspar, and quartz. Although bone china is fired at lower temperatures than true porcelain, the bone ash enables it to become translucent nonetheless. Because it is also easier to make, harder to chip, and stronger than hard porcelain, bone china has become the most popular type of porcelain in the United States and Britain (European consumers continue to favor hard porcelain).
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