d*****s
发帖数: 313 | 1 I do not know.
What I am thinking now is, since in liquid, the distribution of molecules
is random, therefore, the "packing" of molecules should not be a factor.
Therefore, this leads to the assumption that the absorption wavelength of
liquids comes individual molecules.
However, what lets the individual molecule have color preference? Why
the absorption wavelength of metals is not governed by this molecular
absorption preference? |
|
y***j
发帖数: 11235 | 2 你股沟了那部分？wavelength？
Citrullus Lanatus貌似不是英文 |
|
i*o
发帖数: 202 | 3 【 以下文字转载自 Physics 讨论区 】
发信人: ito (恩恩), 信区: Physics
标 题: 请教 2photon absorption and emission wavelengths
发信站: BBS 未名空间站 (Thu Aug 26 13:39:40 2010, 美东)
请教一下有没有人有以下各种dye 的2photon absorption and emission spectra 的资料
PE
PE Texas Red
PE cy7
PerCp-Cy5.5
APC
APC-cy7
Alexa Fluo 430
任何信息都可以 谢谢！！ |
|
i*o
发帖数: 202 | 4 【 以下文字转载自 Physics 讨论区 】
发信人: ito (恩恩), 信区: Physics
标 题: 请教 2photon absorption and emission wavelengths
发信站: BBS 未名空间站 (Thu Aug 26 13:39:40 2010, 美东)
请教一下有没有人有以下各种dye 的2photon absorption and emission spectra 的资料
PE
PE Texas Red
PE cy7
PerCp-Cy5.5
APC
APC-cy7
Alexa Fluo 430
任何信息都可以 谢谢！！ |
|
d*****s
发帖数: 313 | 5 of liquid.
I understand why crystals can show different colors, the optical bands
play the critical role there. But to liquids, I have no idea at all.
What determines the absorption wavelength? molecule size? or whatever?
Thanks. |
|
M**A
发帖数: 78 | 6 各位朋友,
请教如下概率题, 不胜感谢.
There are W wavelengths. Each wavelength is divided into T timeslots. The
probability that a time slot is not free is p. A route has H hops.
What is the probability that no wavelength has at least k timeslots free along
the route?
背景知识:
数据包从"源点"出发, 路经H个"hops", 才抵达"终点". 每个"hop"有 W 个 wavelengths, 每
个wavelength 有 T 个 timeslots. 每个数据包路经"hop"的时候只占有一个wavelength的一
个timeslot. |
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d**y
发帖数: 32 | 7 有两篇，请有兴趣且能审稿的站内信联系。
1：题目：Modeling and simulation an anti-reflective coating of ZnO and ZnS
for silicon solar cells using Silvaco software
摘要
In this paper simulated single layer anti-reflective coating on silicon
solar cell that based on the refractive index limit of silicon dioxide (SiO2
), zinc oxide (ZnO) and zinc sulphide (ZnS)
are presented. Two simulations of ZnO and ZnS coating were simulated to
compare with SiO2
anti-reflective coating on silicon solar cell surface. These simulations
car... 阅读全帖 |
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a*******a
发帖数: 451 | 8 对一些big questions的解读，有兴趣的推荐读完，可以开启心智！
---------------------------------------
The nature of dark matter and dark energy in the cosmos
Science is based on a very strict process - of taking existing well-tested
theories and then observing something. This something observed is not
understood so hypothesis (or educated guesses) are made as to what drives
that phenomena. Where the inspiration comes to come up with a hypothesis,
that's interesting and bounds on the spiritual, but from there the process... 阅读全帖 |
|
a*******u
发帖数: 6324 | 9 嗐！轩哥，那不就是叫做Vibrato嘛。
就抖啊，就震啊，就一个词根啊。
http://en.wikipedia.org/wiki/Vibrato
http://zh.wikipedia.org/wiki/%E9%A1%AB%E9%9F%B3_(%E9%9F%B3%E6%A
颤音 (音乐)
维基百科，自由的百科全书
颤音是一种乐器技巧。
Vibrato
From Wikipedia, the free encyclopedia
Vibrato is a musical effect consisting of a regular, pulsating change of
pitch. It is used to add expression to vocal and instrumental music. Vibrato
is typically characterised in terms of two factors: the amount of pitch
variation ("extent of vibrato") and the speed with which the p... 阅读全帖 |
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g*********r
发帖数: 1443 | 10 今天学了点新知识，和大家分享：
Reflection, Refraction, and Color
The uppermost, sunlit layer of the ocean where 70 percent of the entire
amount of photosynthesis in the world takes place is called the euphotic
zone. It generally extends to a depth of 100 meters (330 feet). Below this
is the disphotic zone, between 100 and 1,000 meters (330 and 3,300 feet)
deep, which is dimly lit. Some animals are able to survive here, but no
plants. Although the amount of light is measurable at this range of depths,
there is ... 阅读全帖 |
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h**********r
发帖数: 671 | 11 How about this answer?
From http://molecularbiology.forums.biotechniques.com/viewtopic.php?f=5&t=15007
When measuring light scattering it is important to consider the wavelength
of light used a bacterial culture. Microorganisms may contain numerous
macromolecules that will absorb light, including DNA (254 nm), proteins (280
nm), cytochromes (400-500 nm), and possible cell pigments. When measuring
bacteria by light scattering it is best to pick a wavelength where
absorption is at a minimum and fo... 阅读全帖 |
|
y*******5
发帖数: 7 | 12 I don't think anyone changed the wavelength. But how/where to change/check
the normalization wavelength? What the normalization wavelength should be? I
just want to double check.
Do you mean "turn off detector"? We already turned off and on many times,
and it didn't help.
The wavelength is 270. But the same situation happened at 254 also.
Thanks very much. |
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c******k
发帖数: 1140 | 13 Let's focus on the middle contact only with bias. Here at T=20C we have had
a lasing center wavelength with 1560nm. If I increase T=40C using TEC for
the whole laser substrate, what lasing wavelength would you expect? I think
you will say the lasing wavelength at T=40C will be a red shift (lower
energy of light), right?
I will do this test later to see the lasing wavelength is having a blue
shift or red shift when I have a higher T.
and
into
generally |
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s********3
发帖数: 40 | 14 前几天面试遇到一个题，觉得自己答的不是很好，贴出答案，求板上高人指出问题。
题目是“Give you a small molecular compound and there is no label on it. How
could you analysis it by HPLC with UV detector? ”然后我问的能用LC-MS么，HM
答的是，it's depends on you,当时就无语了。
我简单的回忆了一下答的内容，欢迎大家指出问题，顺带说一下下次遇到这问题该怎么
答啊。。。
First, I will try my best to collect more information about this compound if
it is allowed, such as, where it is from, what it is used for, is it a
finished products or raw material etc. Typically talk to the end user of
this compound, or the ups... 阅读全帖 |
|
C****o
发帖数: 1549 | 15 Kai Sun, Shengkai Wang, Ritobrata Sur, Xing Chao, Jay B. Jeffries, Ronald K.
Hanson, "Time-resolved in situ detection of CO in a shock tube using cavity
-enhanced absorption spectroscopy with a quantum-cascade laser near 4.6μm,"
Optics Express (2014), 22(20), 24559-24565.
Kai Sun, Shengkai Wang, Ritobrata Sur, Xing Chao, Jay B. Jeffries, Ronald K.
Hanson, "Sensitive and rapid laser diagnostic for shock tube kinetics
studies using cavity-enhanced absorption spectroscopy," Optics Express (2014
), ... 阅读全帖 |
|
C****o
发帖数: 1549 | 16 其实就4篇, 杂志都不咋地
Kai Sun, Shengkai Wang, Ritobrata Sur, Xing Chao, Jay B. Jeffries, Ronald K.
Hanson, "Time-resolved in situ detection of CO in a shock tube using cavity
-enhanced absorption spectroscopy with a quantum-cascade laser near 4.6μm,"
Optics Express (2014), 22(20), 24559-24565.
Kai Sun, Shengkai Wang, Ritobrata Sur, Xing Chao, Jay B. Jeffries, Ronald K.
Hanson, "Sensitive and rapid laser diagnostic for shock tube kinetics
studies using cavity-enhanced absorption spectroscopy," Optics Exp... 阅读全帖 |
|
S*********g
发帖数: 5298 | 17 rule of thumb:
1. The signal strength that penetrates through your cloth decreases
exponentially as the thickness of your cloth increases. Usually the
penetration depth is on the same order of signal wavelength. For radio
frequency, the wavelength is between 100km to 1 mm, corresponding to 3kHz to
300GHz. Some model of Verizon wireless uses 800MHz signal. This means the
wavelength for wirelss signal is about 30cm. You probably want to wear
something as thick as 10cm or more.
2. The more holes on |
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a***n
发帖数: 1500 | 18 第一张是索蔡合影。
能看到酒红色T*镀膜的是索蔡2470/85/135。这几只镜子也是使用频率最高的。
Zeiss镜头盖底下的是小弟16-80/3.5-4.5 DT，已经和A700一起出掉了。
这张是最丧心病狂时期的全家福，三只索蔡也在其中：
这张是135/1.8出的St Patrick's Day Tap Dance
*****
懒人一头，从FM抄了一段T*历史过来
Taken from http://www.fredmiranda.com/forum/topic/215494
Starting with a T* coating definition
Carl Zeiss T* anti-reflection coatings ensure the virtual elimination of
unwanted reflections inside the lens. This means that only image-forming
light reaches the image plane of the camera. Your photographs will have
g... 阅读全帖 |
|
w***e
发帖数: 269 | 19 It is because the emission wavelength of a fluorophore is very much
influenced by the polarity of the micro-environment. A polar medium makes
the emission "red-shifted", meaning longer wavelength, whereas a non-polar
medium makes the emission blue shifted. Tryptophan is a hydrophobic amino
acid. In a folded protein, it is usually buried within the interior of the
protein (hydrophobic core) so that it is in a relatively non-polar
environment. In a completely unfolded protein, Tryptophan is expos... 阅读全帖 |
|
l**********c
发帖数: 434 | 20 有可能是主要贡献吗？
A challenge in photodynamic therapy (PDT) cancer treatment is developing
novel methods of singlet oxygen generation using near infrared light.
Titanium
dioxide is a photocatalyst that generates reactive oxygen species (ROS), but
it requires ultraviolet light. Lead sulfide (PbS) quantum dots have a
narrow band
gap, allowing them to tune the absorbed wavelengths of the nanotubes to the
near infrared. To ensure singlet oxygen generation, the photoreactive NO
donor
S-nitroso-cysteine was ... 阅读全帖 |
|
c******k
发帖数: 1140 | 21 老板购要再购买一片商业的 MQW InP wafer. 但是商业公司给你的wafer信息就是
Photoluminescence (PL) peak在什么波长， 其他的参数人家不管。
我们已经购买了一片，PL wavelength 在1509.1nm. Spectral width at FWHM: 1440nm
-1542nm. 然后我们制作了一个 1.0mm long FP laser, 首先测 ASE spectrum （低于
阈值电流）, 发现峰值波长在1520nm, 然后多加电流让laser 发激光，lasing
wavelength 就在1515nm.
实际上我们期望一个在1535nm左右发激光的laser diode. 那么问题是我们购买的wafer
的 PL peak wavelength 不合适？还是怎么样？ 如果是wafer问题，一般来说制作一个
普通的FP laser diode, 希望激射波长在Lambda 1， 而wafer 的PL peak 在Lambda 2
，他们之间有什么经验性的公式或者有什么一个差值范围可以follow吗?
谢谢！ |
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s******x
发帖数: 15232 | 22 我也想说，印象里好象见过的RAMAN的数据主要还是打在一个点上，SIGNAL VS
WAVELENGTH的图多。
依我的粗陋理解，象楼主这样用来做IMAGING的，似乎应该是知道要找SIGNAL VS
WAVELENGTH里的某一个具体FEATURE之后，再用这个WAVE LENGTH来做，以探测这个特定
成分的SPACIAL DISTRIBUTION吧？
象楼主这样上来就做IMAGING，而且也没有说为什么用这个WAVELENGTH做的，似乎很难
想出来这么做的物理意义是什么啊 |
|
v*******e
发帖数: 11604 | 23 这篇文章：
www.quantenkryptographie.at/ECOCPoppe_2005.pdf
的图二标出了一些能够entangled和不能entangled的光子对；他说：
“If the polarization of one photon is strictly linked to another property
of a photon, entanglement is not possible. The photons indicated by the
rectangular position in fig. 2 have different wavelengths and are
distinguishable. Even when both pair-photons are degenerated, i.e. having
the same wavelength, but different emission angles, the polarization is
determined by the position. Only for the intersec... 阅读全帖 |
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d*****g
发帖数: 1616 | 24 City of Light: The Story of Fiber Optics, pp. 191-192
A Bet on Long-Wavelength Lasers
The entrepreneurial bug bit Jim Hsieh in the midst of the fiber boom.
Lincoln Lab’s role was to develop new technologies until they were
ready for industry; the time came to transfer long-wavelength lasers
in 1978. Hsieh didn’t want to abandon them. After seven years at the
lab, he was growing restless. After agonizing for months, he called
Ken Nill, who had left Lincoln a few years earlier to start a laser
in |
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T**********e
发帖数: 29576 | 25
Mars appears to have a permanent haze of dust, which remains suspended in
the air after dust storms. The dust contains the mineral limonite, a brown
iron oxide found on most of the Martian surface.
The sky is not blue as on Earth because Martian air is extremely thin, and
the dust particles in the air are large relative to the wavelength of
visible light. The dust particles preferentially absorb blue light and
effectively act as mirrors by scattering the remaining wavelengths: this
produces the... 阅读全帖 |
|
s********n
发帖数: 2939 | 26 为什么一帮人就喜欢动嘴皮子不喜欢动手狗一下？明明说了是Fe4[Fe(CN)6]3，哪来的
钾？
https://en.wikipedia.org/wiki/Prussian_blue
Prussian blue
From Wikipedia, the free encyclopedia
This article is about the pigment. For the musical duo, see Prussian Blue.
See also: Midnight blue
Prussian blue
IUPAC name[hide]
Iron(II,III) hexacyanoferrate(II,III)
Other names[hide]
Berlin blue
Ferric ferrocyanide
Ferric hexacyanoferrate
Iron(III) ferrocyanide
Iron(III) hexacyanoferrate(II)
Parisian blue
Identifiers
CAS number 14038-43-8
PubChem ... 阅读全帖 |
|
b***z
发帖数: 2723 | 27 The following is a breakdown of the energetics of the photosynthesis process
from Photosynthesis by Hall and Rao:[5]
Starting with the solar spectrum falling on a leaf,
47% lost due to photons outside the 400–700 nm active range (chlorophyll
utilizes photons between 400 and 700 nm, extracting the energy of one 700 nm
photon from each one)
30% of the in-band photons are lost due to incomplete absorption or photons
hitting components other than chloroplasts
24% of the absorbed photon energy is los... 阅读全帖 |
|
u***r
发帖数: 4825 | 28 http://www.nytimes.com/2015/01/29/us/charles-h-townes-physicist
Charles H. Townes, a visionary physicist whose research led to the
development of the laser, making it possible to play CDs, scan prices at the
supermarket, measure time precisely, survey planets and galaxies and even
witness the birth of stars, died on Tuesday in Oakland, Calif. He was 99.
His daughter Linda Rosenwein confirmed his death.
In 1964, Dr. Townes and two Russians shared the Nobel Prize in Physics for
their work on micro... 阅读全帖 |
|
b*******c
发帖数: 20683 | 29 Do cellular phone towers cause cancer?
===============================
Some people have expressed concern that living, working, or going to school
near a cell phone tower might increase the risk of cancer or other health
problems. At this time, there is very little evidence to support this idea.
In theory, there are some important points that would argue against cellular
phone towers being able to cause cancer.
First, the energy level of radiofrequency (RF) waves is relatively low,
especially wh... 阅读全帖 |
|
B*W
发帖数: 1341 | 30 这事儿不是n多人普及过n多回了么？
The following question was answered by an expert in the appropriate field:
Q
I'm pregnant and I have to use computers for a few hours a day and I know
electric appliances also emit radiation. How harmful is all of this to me
and my baby?My friend suggests that I buy radiation protection suits.
According to their advertisements, the garments are made from a kind of
fiber interwoven with antiradiation material. Do you think it works? Should
I wear it?
问题：我现在怀孕了，每天需要用电脑几个小时，我知道电器也... 阅读全帖 |
|
B*W
发帖数: 1341 | 31 这事儿不是n多人普及过n多回了么？
The following question was answered by an expert in the appropriate field:
Q
I'm pregnant and I have to use computers for a few hours a day and I know
electric appliances also emit radiation. How harmful is all of this to me
and my baby?My friend suggests that I buy radiation protection suits.
According to their advertisements, the garments are made from a kind of
fiber interwoven with antiradiation material. Do you think it works? Should
I wear it?
问题：我现在怀孕了，每天需要用电脑几个小时，我知道电器也... 阅读全帖 |
|
q*****r
发帖数: 32 | 32 Postdoc Openings at Arizona State University
We are seeking highly motivated individuals for two to three postdoc
positions
available immediately in the research areas of i) fabrication and testing
for highefficiency
multi-junction solar cells, ii) device processing for Si solar cells (or
related Si devices), and iii) modeling, growth, characterization for
selforganized
3D quantum dots and 2D heterostructures such as type-II
superlattice. Applicants should have strong background in one of the ar... 阅读全帖 |
|
q*****r
发帖数: 32 | 33 We are seeking highly motivated individuals for two to three postdoc
positions available immediately in the research areas of i) fabrication and
testing for high- efficiency multi-junction solar cells, ii) device
processing for Si solar cells (or related Si devices), and iii) modeling,
growth, characterization for self- organized 3D quantum dots and 2D
heterostructures such as type-II superlattice. Applicants should have strong
background in one of the areas mentioned above. Application should b... 阅读全帖 |
|
c***1
发帖数: 3281 | 34 这是古板。我知道一定会有男说这种话。如果不是因为cww平时挺容易说话和讨论，我
也不多说这种话题。争论要有意义要跟同一个wavelength的人才会有建设性。
跟你就不同wavelength,所以不用多聊了。你说这种话其实除了表达了你的狭隘之外，没有什么其他用处。
妇人之仁，应该是用在不能忍受暂时的痛苦，宁愿长期被限制的政策上。 |
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i********6
发帖数: 4766 | 35 ☆─────────────────────────────────────☆
KatieHuang (not that bad) 于 (Thu Jun 17 18:07:53 2010, 美东) 提到:
刚搬进新家,房子背靠马路.本以为可以忍受,但还是很吵.有人有什末好办法吗?看了
soundproof window,好贵呀,还不知有没有用.谢谢了.
☆─────────────────────────────────────☆
KatieHuang (not that bad) 于 (Thu Jun 17 18:13:05 2010, 美东) 提到:
顶一下.
☆─────────────────────────────────────☆
daylight (家有猪朋狗友) 于 (Thu Jun 17 20:05:07 2010, 美东) 提到:
没用过。你现在是single pane？换double pane呢？
☆─────────────────────────────────────☆
KatieHuang (not that bad) ... 阅读全帖 |
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a****s
发帖数: 524 | 36 He took almost 2 minutes consider his next move after King of hearts...
that is the live evidence, .... people who are playing in the Polish
national team trail are simply morons.
IMHO, you guys bickering about whose signal system is superior is not only
baseless, but also useless.
NO signal systems will work when partner tuned in a different wavelength.
The approach of twisting spot cards and hope it will deliver a clear message
is simply 纸上谈兵. because it makes the assumption that both partners... 阅读全帖 |
|
f**********c
发帖数: 651 | 37 据说这是好镜头的表现， quoted from ll:
Those "tiny black specks" are what you get when the lens is an odd number
of half-wavelengths out of focus. Note how both the foreground and
background point sources gradually show an increasing pattern of light and
dark rings - and more critically, how these ring patterns exhibit
identical shapes and intensities at a given degree of defocus in front of
and behind the plane of sharp focus? That beautiful symmetry, between
inside and outside focus, is a sign of near-pe... 阅读全帖 |
|
c********y
发帖数: 30813 | 38 ☆─────────────────────────────────────☆
redskeleton (红骨架／白菜猪肉丸子汤) 于 (Wed Dec 22 23:40:22 2010, 美东) 提到:
带老婆孩子出去看灯展，照了不少照片，回来一看，我靠，这圈圈也太多了点，整个无
数同心圆套在一起，这焦外..............
☆─────────────────────────────────────☆
arsilverfox (Alli) 于 (Wed Dec 22 23:41:35 2010, 美东) 提到:
快做个桃心镜头盖拍心型bokeh~x]
☆─────────────────────────────────────☆
yuanwang (gauntlet) 于 (Wed Dec 22 23:42:20 2010, 美东) 提到:
我觉得还不错啊
☆─────────────────────────────────────☆
beetle1986 (beetle) 于 (Wed Dec 22 23:42:46 2010, 美东... 阅读全帖 |
|
t****g
发帖数: 35582 | 39 case by case， field by field, wavelength by wavelength |
|
|
f**********r
发帖数: 18251 | 41 【 以下文字转载自 Military 讨论区 】
发信人: smartkevin (PE), 信区: Military
标 题: Re: 普鲁士蓝解毒机理
发信站: BBS 未名空间站 (Wed May 1 11:49:11 2013, 美东)
为什么一帮人就喜欢动嘴皮子不喜欢动手狗一下？明明说了是Fe4[Fe(CN)6]3，哪来的
钾？
https://en.wikipedia.org/wiki/Prussian_blue
Prussian blue
From Wikipedia, the free encyclopedia
This article is about the pigment. For the musical duo, see Prussian Blue.
See also: Midnight blue
Prussian blue
IUPAC name[hide]
Iron(II,III) hexacyanoferrate(II,III)
Other names[hide]
Berlin blue
Ferric ferrocyanide
Ferric hexacy... 阅读全帖 |
|
H********g
发帖数: 43926 | 42 【 以下文字转载自 Biology 讨论区 】
发信人: lyray (lyray), 信区: Biology
标 题: 人类灵魂就隐藏在DNA末端krypton原子
发信站: BBS 未名空间站 (Wed Aug 26 16:32:06 2015, 美东)
We owe the discovery of this mysterious biogenetic process to our scientist
AOYOO 221.
It had been discovered a long time before that in the human brain were
krypton atoms (a rare gas that you know), and this discovery was a
significant, transcendent one. It was quite simply the key to the OEMBUAW,
MAN'S THIRD FACTOR, which you do not know and which acts as a link be... 阅读全帖 |
|
s*****n
发帖数: 536 | 43 In fact, all the present switch are still in done in
E domain, and most of the E switch are produced by
your company.(kick!) There is even some doubt about
the future of the O switch---since the E switch can
keep up with the pace of the development, why not
bother to....
The main focus on switch in WDM now is OXC w/o wavelength
converter--this is a key factor. Will the switch have
the wavelength convertor or not will fundamentlly
influence the topology of the physical network.
In fact I am not i |
|
d****i
发帖数: 2346 | 44 谢谢两位！
这个可以吗？review蛮好的。
http://www.amazon.com/Medialink-Wireless-Adapter-802-11n-Compat
问题：这个说明里面有这几条
Compatibility
- Any PC or Laptop with a USB port, 733MHz CPU, and 64MB Memory
- Any brand 802.11g or 802.11n router using 2.4ghz wavelength
这个是什么啊？我用的是学校公共的wifi信号，怎么知道这个匹配不？
- Windows 2000, 2003, XP 32-Bit/64-Bit, Vista 32-Bit/64-Bit, Windows 7 32-
Bit/64-Bit
- NOT COMPATIBLE with Xbox 360, PS3, Blu-Ray Players, Roku Boxes, or any
device that does not run an Operating System. Also will not work w... 阅读全帖 |
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I******n
发帖数: 5952 | 45 老实说这方面我完全不懂，不过似乎引力波长都非常长。当然量子计算具体怎么回事儿
我也是完全不懂，不过这么长的波长怎么干扰量子计算机？每隔几天扰动一下？
Whereas astrophysical electromagnetic waves are typically much smaller than
their sources, ranging from a few kilometres down to sub-nuclear wavelengths
, gravitational waves are larger than their sources, with wavelengths
starting at a few kilometres and ranging up to the size of the Universe.
http://www.tapir.caltech.edu/~teviet/Waves/gwave_spectrum.html |
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s******y
发帖数: 28562 | 46 In my understanding, the most professional way is to label it with the
exitation wavelength, simply because the excitation is strictly controlled
by the sysytem, but the emission is not. The emission wavelength is mainly
controled by the chromophore whichever you use.
However, for the convenience of most user, the labeling of the channel are
often changed to its target chromophores, for example, DAPI, FITC,and TRITC,
which is also appropriate.
But it is not exactly appropriate to label it as "em |
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h**********r
发帖数: 671 | 47 You can scan the OD of the culture by using UV-Vis spectrometer, and then
pick up the wavelength at peak. Determine the CDW (cell dry weight) Vs. OD
at selected wavelength, and make a curve.
For some microbes, it's different. For some green microalgae, some one uses
OD770. For cyanobacteria, people use OD750 or OD730. For some orange conidia
from the fungus, OD420 is used.
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l***y
发帖数: 1166 | 48 We owe the discovery of this mysterious biogenetic process to our scientist
AOYOO 221.
It had been discovered a long time before that in the human brain were
krypton atoms (a rare gas that you know), and this discovery was a
significant, transcendent one. It was quite simply the key to the OEMBUAW,
MAN'S THIRD FACTOR, which you do not know and which acts as a link between
the HEART and the BODY (BUAWAA and OEMII).
69 XEE before [approximately 18 months NdT ], in laboratory fertilization
experime... 阅读全帖 |
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c******m
发帖数: 884 | 49 change the UV wavelength. ACN has absorption at low wavelength then gives
you a baseline shift.
30 |
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A******y
发帖数: 2041 | 50 Someone changed your normalization wavelength. Turn it off and it should
change back to positive peak. The wavelength is 254? |
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