l**********1
发帖数: 5204 | 1 continue:
BAOZI please LZ
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D****g
发帖数: 275 | 2 As I understand, it is to make sure that the cells are in best condtions and
the transcription and translational machinery are highly functional, so
your target can be highly expressed. |
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D****g
发帖数: 275 | 3 As I understand, it is to make sure that the cells are in best condtions and
the transcription and translational machinery are highly functional, so
your target can be highly expressed. |
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d****a
发帖数: 23 | 4 It is an 3D elliptic problem with periodic boundary conditions in lateral
boundaries and fixed top and bottom boundary condtions. After discretizing
by finite difference method, I get a big coefficient matrix with 39 nonzero
elements in each row. The matrix has dimension about 75,0000. Now the
problem is to solve the sparse linear system. However, this matrix elements
have a large numerical range, spaning 10 orders of magnitude. It is
nonsymmetric, not diagonally dominant, and not positive defin |
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k****e
发帖数: 337 | 5 所谓的coding efficiency，可以看entropy，也相当于要看 symbol的probability。
context adaptive相当于利用了correlation, 把本来单纯的symbol的probability，转
换成了condtional probability, 也就是相当于转换成了 conditional entropy。
conditional entropy总是比原来的entropy要小(看entropy theory)。相应的 coding
efficiency就高了。 |
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j****s
发帖数: 156 | 6 1. 即便是非凸函数，最优值应该也是在导数为0的地方吧?
2. 对非凸函数写KKT condtion，满足的解虽然不是最优的，但是有什么物理意义？
多谢 |
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a******e
发帖数: 80 | 7 我又加了一些细节在最后。谢谢
请教一个问题
关于不同length的transistor的Vt
我知道short channel effect，当channel length越来越小的时候，Vt也会越来越小。
textbook上说当channel足够长的时候，Vt就趋于稳定，与channel length无关了
但为什么我得到了如下的仿真结果（测试结果也是如此），length都到16um了，Vt还没
稳定，而且L越大，Vt的绝对值越小，趋势与教科书上讲的是反方向。
我得到的结果如下
一个PMOS transistor，如果W＝40um， L＝2um，那么Vt＝－0.879V，
一个PMOS transistor，如果W＝40um， L＝4um，那么Vt＝－0.847V，
一个PMOS transistor，如果W＝40um， L＝8um，那么Vt＝－0.820V，
一个PMOS transistor，如果W＝40um， L＝16um，那么Vt＝－0.806V
做测试的PMOS来自SOI process，transistor的minimum length是1.2um
哪位大虾讲一讲，或是介... 阅读全帖 |
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j****s
发帖数: 156 | 8 1. 即便是非凸函数，最优值应该也是在导数为0的地方吧?
2. 对非凸函数写KKT condtion，满足的解虽然不是最优的，但是有什么物理意义？
多谢 |
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a********9
发帖数: 5 | 9 I have some:
Step 1:
USMLE step 1 review volume I,II,III and IV from Kaplan:
2008 Edition, in very good condtion, covering all the topics of step 1
examination.
我以前是花500 多美金买的，现在就250美金贱卖吧。Price are negotiable. Please
email a***********[email protected] if interested. |
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a********9
发帖数: 5 | 10 Hi,
I have some step 1 and step 2 study material for sale. The list of the
books and the prices are below:
Step 1:
USMLE step 1 review volume I,II,III and IV from Kaplan:
2008 Edition, in very good condtion, covering all the topics of step 1
examination.
我以前是花500 多美金买的，现在就250美金贱卖吧。
Step 2 CK:
1. Master the Board, USMLE step 2 CK:
2011 Edition, in very good condition, sale for $ 30
2.Kaplan USMLE Step 2 CK lecture notes for surgery,internal medicine,
psychiatry and epidemiology&Ethics,obstetr... 阅读全帖 |
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w****m
发帖数: 63 | 11 10年之内美国就要破产了，还要等到2057年吗。。。
现在，你父母是老人可以申请很多联邦福利，
1，马上可以申请粮食卷，一个人280元，obama签署增加了一半！全家申请就是一千多
元，全家吃菜是够了，（用不完，可以找老黑偷换啤酒喝，香烟吸。不过抓到，要判刑
！）2，然后申请联邦医疗MEDICAID，你父母养老联邦政府管了，纽约州的老人中心都
是州政府联邦医疗计划统一管理，BASIC CONDTIONS:一对老夫妻，单独的1BEDROOM，每
天的吃饭全免费，如果是中国人，可以要求中餐，注册护士每天给你定时发药，NURSE
AID 24小时陪着你，PT物理治疗师每个星期来陪着你运动4次，中医师号脉，扎针一星
期只能来一次（多来，要专门申请），MD天天都在SENIOR CENTER可以随时开处方，房
间里有电话（不过州政府医疗不包长途，只能是LOCAL）电视，（不过没有湖南卫视，
全是英文台），REF,MICROWARE,KITCHEN,跟家里一样，不过全部不要钱！这一切在中国
大陆，恐怕只有省长级别以上的离休干部才享有的福利，你自己一分也不要出，不过联
邦政府替你出了，（MEDICAI |
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b***k
发帖数: 2673 | 12 ☆─────────────────────────────────────☆
yuyy (yyy) 于 (Fri May 8 17:38:00 2009) 提到:
1. escalator problem
two persons are running on escalator the same time. each time A go 2 stairs,
B go 3 stairs, finally A reached the top with 25 steps, and B got it with 20
steps.ask how many stairs the escalator has to be visible?
(not sure if I caught the condtions right, but the answer is 50.)
2. One stock, currently price is 10, one year later, it either be 12
with 0.6 probability or 8 with 0.4 probabi |
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e***t
发帖数: 14386 | 13 first one:
you first get a standard chess board which obviously satisfies the condtion.
then consider each grid in order to match the given board, by replacing
b-w w-b
| | to | | if needed, which won't change the value of black minus white.
w-b b-w
equal, |
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n****e
发帖数: 629 | 14 there're more simple solutions hehe
condtion. |
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s***e
发帖数: 267 | 15 For 1 there are more than one answers, i.e. coud be
(1,1,1,7,7,7) and (0,1,2,3,4,5)
or (0,0,0,6,6,6) and (1,2,3,4,5,6)
For 2, you can use DP. The key is to find out the relationship between sizeN
problem's solution and size N-1 problem's solution. To simplify matters,
you can put another condtion that both squares start from row i, say, by
varying i. The complexity of such an algorithm is in general O(N^3). Maybe
this can be shortened, not sure.
face
dices
matrix,
all |
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a***w
发帖数: 30 | 16 Hope this is true:
Markov chain: x1->x2->x3 <=>
x1 and x3 are condtional independent given x2...
this is symmetrical, right?
p(x1,x3|x2) = p(x1|x2)p(x3|x2) |
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s*********3
发帖数: 141 | 17 1998 Honda Civic Lx 4Door,automatic, 4cyl, 1.6L, 72xxx Mile. Pass MD
Inspection , Low Gas Running , 3000 Mile Oil Change, One Owner, Very Clean
Excellent Condtion .
Cold air Conditioning/Heating, Automatic , Cruise Control, AM/FM Radio,
Driver Air Bag, Passenger Air Bag, Power Door Locks, Power Mirrors, Power
Steering, Power Windows. Silver Color. Cash/Cashier's check preferred.
Serious buyer only. Pls Call (301)-540-0149 . Thanks ! |
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w*******y
发帖数: 60932 | 19 Targus Premium Laptop Wall & Car Travel Charger - APM69US
retail price: $139.99
you save: $110.00(79%)
Sale price: $34.98. Shipped
Link:
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Product Features:
The small and compact size of the Targus Premium Laptop Charger half the
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travel and all you laptop charging needs.
The Targus Premium Laptop Charger is not only ideal for charging laptops,
but is also great for charging smaller electronics s... 阅读全帖 |
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w*******y
发帖数: 60932 | 20 Save over $165 off cost of new chainsaw compared to amazon.com that is
selling them for $329.99.
You can order a refurbished one for $162 ($179.99 -10% "VMSAVE10" coupon )
directly from VMInnovations at: Husqvarna 445:
http://www.vminnovations.com/product_5009/HUSQVARNA_445_18_Inch
Specs from the website:
Air Purge - Removes air from carburetor and fuel system for easy starting.
Air Injection - Centrifugal air cleaning system removes larger dust and
debris particles before reaching the air filt... 阅读全帖 |
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w*******y
发帖数: 60932 | 21 Specs: Power Or Charge Two Items Simultaneously, Works With Iphone, Ipod,
Ipad, Cell Phones Cameras, Laptops & More.
Product Description:
Now, you piece of scum. We have beat you, starved you, hung you from the
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No? You s... 阅读全帖 |
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g********n
发帖数: 2314 | 22 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: dadabear (bless you), 信区: SanFrancisco
标 题: [合集] goldenrain的观点未免偏颇
发信站: BBS 未名空间站 (Thu Feb 8 16:24:51 2007), 站内
☆─────────────────────────────────────☆
MSJ (Mission San Jose) 于 (Tue Feb 6 00:42:38 2007) 提到:
看完他blog的《现在在哪里买房风险小》，我只能笑着摇摇头。在我眼里，这个列表与
其说是“风险小”列表，不如说是“房子难涨地区列表”。试论证一二：
1. 常言道“强者恒强，弱者恒弱”。NYC, SF地区房价高企不是一年两年了，支撑房价
的不是那个affordability的percentage，而是能afford的人口数和房子总数的比例。
这里看百分比是没有多大意义的。只要还有人能买得起还愿意买，即使affordability
只有15%又如何呢？
2. 正如high tech公司的P/E要远大于... 阅读全帖 |
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