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全部话题 - 话题: insects
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w*******y
发帖数: 60932
1
Ace Hardware B&M stores are offering the following Rebate Deals during their
Memorial Day Sale through May 28, 2012.
Ortho Home Defense Max Insect Killer
24 oz kills bugs inside & keeps bugs out.
Sku 71325
Reg $5.99, Sale $5.00 less $5.00 Rebate = Free AR, limit 4 rebates
Poly-Pro Rope
3/8" x 50', Medium load.
Sku 72367
Reg $8.99, Sale $4.00 less $4.00 Rebate = Free AR, limit 2 rebates
Microfiber Automotive Cloth 3/Pk
12" x 16" Cloths dust, wash, druy, buff, & shine.
Sku 8189979
Reg $7.99, sale ... 阅读全帖
c**i
发帖数: 6973
2
(1) Marcel Dicke and Arnold Van Huis, The Six-Legged Meat of the Future;
Insects are nutritious and easy to raise without harming the environment.
They also have a nice nutty taste. Wall Street Journal, Feb 19, 2011.
http://online.wsj.com/article/SB1000142405
2748703293204576106072340020728.html
Quote:
"Ten pounds of feed yields one pound of beef, three pounds of pork, five
pounds of chicken and up to six pounds of insect meat.
"Insects produce less waste, too. The proportion of livestock that i... 阅读全帖
m******y
发帖数: 114
3
【 以下文字转载自 gardening 讨论区 】
发信人: multiply (multiply), 信区: gardening
标 题: 麻烦推荐杀玫瑰花上蚧壳虫(scale insect)药
发信站: BBS 未名空间站 (Sun Aug 5 15:51:42 2012, 美东)
发现玫瑰花上有虫,查了一下,应该是蚧壳虫(scale insect),请问用什么杀有效?
Lowes上面很多insect/pest control产品,大多说可以kill很多种insects。就不知道
杀不杀这种蚧壳虫。还是一般都可以杀?麻烦推荐哪个比较好用?没经验,谢谢!
I***i
发帖数: 14557
4
http://www.wired.com/wiredscience/2012/12/panama-bug-count/
6,000 Insect Species Found in One Acre of Rainforest
(It took an army of committed scientists to get an accurate count of all
the arthropods in the San Lorenzo forest. Image: Jurgen Schmidl/University
of Erlangen)
A sweeping census involving more than 100 scientists and lasting almost a
decade has estimated that Panama’s San Lorenzo forest is home to an
estimated 25,246 arthropod species. The study is the most extensive survey
of insect... 阅读全帖
m******y
发帖数: 114
5
发现玫瑰花上有虫,查了一下,应该是蚧壳虫(scale insect),请问用什么杀有效?
Lowes上面很多insect/pest control产品,大多说可以kill很多种insects。就不知道
杀不杀这种蚧壳虫。还是一般都可以杀?麻烦推荐哪个比较好用?没经验,谢谢!
w*******y
发帖数: 60932
6
Best Buy has Earth Defense Force: Insect Armageddon for PS3 and xbox on sale
for $14.50 shipped.
PS3 Link:
Link:
http://www.bestbuy.com/site/Earth Defense Force: Insect Armageddon - PlayStation 3/2831033.p?id=1218354841686&skuId=2831033
Xbox Link:
Link:
http://www.bestbuy.com/site/Earth Defense Force: Insect Armageddon - Xbox 360/2758119.p?id=1218348988272&skuId=2758119&st=Earth
Defense&lp=1&cp=1
Amazon is selling this exact game for $30. Have seen some good deals on
this game, but $14.50 is p... 阅读全帖
n**h
发帖数: 237
7
来自主题: Living版 - Insect Damage
Inspection时发现地下室一beam有insect damage,屋主几年前加固了一根新beam。请
问这种solution靠谱吗?有没有谁有过insect damage经验的说说。谢谢!
w********0
发帖数: 245
8
要去旅游,有点担心旅行箱的清洁问题,不知道是否可以直接喷insect repellent
在箱的外部,
但是这样会对箱里装的东西有影响吗?
大家有什么好的推荐? 如何使自己的旅行箱insect repellent?
I***i
发帖数: 14557
9
来自主题: Animals版 - Tiny insect's ears on its hind legs
http://www.latimes.com/news/science/sciencenow/la-sci-sn-tiny-i
Tiny insect's ears, located on its hind legs, work just like ours
http://www.trbimg.com/img-50a54dbe/turbine/la-sci-sn-tiny-insec
By Jon Bardin
November 15, 2012, 12:14 p.m.
Despite the fact that a katydid’s ears are located on its hind legs, the
rain forest insect’s hearing works in a strikingly similar fashion to human
hearing, according to a new study published Thursday in the journal Science.
Mammalian hearing is enabled by a th... 阅读全帖
w*******y
发帖数: 60932
10
Insect Lore Ladybug Land now $5.99 on Amazon:
http://www.amazon.com/Insect-Lore-2100-Ladybug-Land/dp/B000099Z8H?SubscriptionId=AKIAI2YF244XWR3NWH3Q&tag=dc1903-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B000099Z8H
Good reviews.
Witness the magic of biology as tiny larvae bloom into beautiful ladybugs.
The ladybug metamorphosis kit is a colorful, see-through habitat that
provides kids with an up-close look at the miracle of nature. Features:
Colorful, see-through Ladybug Land habitat. ... 阅读全帖
w*******y
发帖数: 60932
11
PRICE DROP: Insect Lore Live Butterfly Garden: $12.49 (50% off of $24.99
list price) on Amazon. 5-star rating from 73% of buyers. FS with Prime or
with $25 purchase.
Amazon amazon.com:
http://www.amazon.com/gp/product/B00000ISC5/ref=ord_cart_shr?t=
is selling the fascinating Insect Lore Live Butterfly Garden for $12.49 (
50% off of $24.99 list price). Free shipping with Prime or with $25 purchase.
5-star rating from 73% of buyers.
The price is lower than I've ever seen it and, IMO, it's absolu... 阅读全帖
w*******y
发帖数: 60932
12
Wii:
Rock Band 3:
Link:
http://www.bestbuy.com/site/Rock Band 3 - Nintendo Wii/1023681.p?id=1218209983234&skuId=1023681
NHL 2k11:
Link:
http://www.bestbuy.com/site/NHL 2K11 - Nintendo Wii/1161907.p?id=1218227993226&skuId=1161907
EA Sports Active NFL Training Camp - Nintendo Wii - $7.99
Link:
http://www.bestbuy.com/site/EA Sports Active NFL Training Camp - Nintendo Wii/1318464.p?id=1218249466310&skuId=1318464
Cabela's North American Adventures Bonus Pack $9.99
Link:
http://www.bestbuy.com/site/Ca... 阅读全帖
S*******s
发帖数: 13043
13
来自主题: Living版 - what is "late spring active insect"
Just moved in for about 1 month. and got a bill of my name stating "late
spring active insect" for about $90. what is it for? how can they charge me
without my awareness?
v***0
发帖数: 318
14
刚买了房,这2天搬。我最怕虫子了。在LOWES买了Bayer complete insect killer打算
把前后院撒一遍。家有一岁半小宝儿,不知道要不要用。看说明很麻烦似的,还要买撒
药的工具,大家要说撒了不好,我就退了去,也不用买工具了。:)多谢!
r**********e
发帖数: 273
15
来自主题: NextGeneration版 - 家里有好多insect,能不能用杀虫剂呢?
住在apartment一层,天气一暖和各种insect就开始变多了,感觉像是外面爬进来的,
像是蚂蚁啊,蜘蛛啊,小蜈蚣呀,别的各种不认识的小虫子
很是担心会不会爬到宝宝身上咬她呢?
朋友推荐了一种杀虫剂,叫Home Defense,主要成分是Bifenthrin和Cypermethrin,不
知道对宝宝安不安全呢?
看说明书可以喷在家里,也可以喷在户外(把门窗周围都喷一圈),一直在犹豫要不要
用? 会不会对宝宝不好呢?宝宝应该就快出来了...
g*******a
发帖数: 31586
16
来自主题: shopping版 - 买了只BUG LIGHT (INSECT KILLER)

您好 您自个去AMAZON.COM搜一下INSECT KILLER 挑一个REVIEW好的吧
o*******0
发帖数: 699
17
听起来你这个不是完全安全。楼上推荐印度神油和insect killing soap 似乎好一点?
w*******y
发帖数: 60932
18
Amazon:
http://www.amazon.com/gp/product/B00000ISC5/ref=ord_cart_shr?ie=UTF8&m=ATVPDKIKX0DER
is selling the fascinating Insect Lore Live Butterfly Garden for $12.99 (
48% off of $24.99 list price). Free shipping with Prime or with $25 purchase.
5-star rating from 73% of buyers.
The price is lower than I've ever seen it and, IMO, it's absolutely worth
every penny. My family loved this marvel of nature!
Product Features:
See butterfly metamorphosis up close.Reusable, collapsible habitat.
Include... 阅读全帖
w*******y
发帖数: 60932
19
Home Depot has 2 Packs of Cutter Insect Repellent for $3.84 or 3 packs Real
Wasp and Hornet Killer for $2.88 in store starting today
k****s
发帖数: 1209
20
来自主题: Biology版 - 蜕皮素
原文在
http://www.skizit.biz/2013/07/21/ecdysone-insect-hormone-an-ind
Ecdysone Insect Hormone Switches on Disease
21 Jul 2013 | ECDYSONE
MORGELLONS:
INSECT HORMONE ECDYSONE TRIGGERS GENETIC CHANGES
TO BUILD NEW HAIR, SKIN, NAILS and CAUSE DISEASES
SkizitGesture-2013
Morgellons is a military grade entomological terror weapon being used to
torture and kill innocent civilians. The medical community has not been
informed about this disease and its complexity keeps it from being properly
identified, ... 阅读全帖
N**B
发帖数: 134
21
来自主题: TrustInJesus版 - 关于利未记11:21-22
看到一篇文章
http://www.tektonics.org/af/buglegs.html
Does the Bible err on how many legs insects have?
Get a stripped-down copy of this page.
Lev. 11:20-3 All fowls that creep, going upon all four, shall be an abominat
ion unto you. Yet these may ye eat of every flying creeping thing that goeth
upon all four, which have legs above their feet, to leap withal upon the ea
rth; even these of them ye may eat; the locust after his kind, and the bald
locust after his kind, and the beetle after his kind, and... 阅读全帖
I***i
发帖数: 14557
22
来自主题: Animals版 - 未来食品(慎入)
http://www.livescience.com/25709-mealworms-sustainable-meat-alt
Will Your Next Burger Be Ground-Up Mealworms?
The wriggly beetle larvae known as mealworms could one day dominate
supermarket shelves as a more sustainable alternative to chicken, beef, pork
and milk, researchers in the Netherlands say.
Currently, livestock use about 70 percent of all farmland. In addition, the
demand for animal protein continues to rise globally, and is expected to
grow by up to 80 percent between 2012 and 2050.
Th... 阅读全帖
I***i
发帖数: 14557
23
来自主题: Animals版 - 小强威武
http://www.nbcnews.com/technology/futureoftech/remote-control-t
Remote-control tech turns cockroaches into beasts of burden
Scientists have outfitted a cockroach with a high-tech backpack that allows
them to remotely control where it scurries.
While the concept may sound terrifying, anyone buried alive under rubble in
an earthquake will shout for joy at the sight of one of these bugs. The
shout will be relayed to rescue teams.
Search and rescue robots are already in use. Many were showcased duri... 阅读全帖
C********g
发帖数: 9656
24
转基因玉米的神话
http://www.rainbowplan.org/bbs/topic.php?topic=107689
送交者: 六指 于 2010-03-25 12:25:45
转基因现在是网上的热门话题,这其中自然少不了在转基因食品上市前就已试吃过的方
老师的身影。学习完他的科普熊文“转基因玉米更有益健康”后,再做延伸阅读,稍加
搜索就看到一篇2004年的洋文”Bt corn reduces serious birth defects”【http://westernfarmpress.com/news/10-27-04-Bt-corn-birth-defects/ 】。方老师的文章基本观点,数据,内容编排都和这篇雷同,不少句子更是原文照译。这进一步验证了一条世人皆知的谣言“方老师写的东西,也有成段的引文献或者直接是英语文章翻过来的”。方老师打开门辟谣,关上门立马就造谣,此等大无畏的勇气和人格力量实在是让我等折服。
方老师涉嫌抄袭早已不是什么新鲜话题,这里说说转基因。这篇洋文的两位作者实际上
是做”二阶科学传播“,主要介绍了当年在“营养学杂志”发表的一篇综述【http://jn... 阅读全帖
h********r
发帖数: 519
25
Transcriptional responses in honey bee larvae infected with chalkbrood
fungus.
Aronstein KA, Murray KD, Saldivar E.
BMC Genomics. 2010 Jun 21;11:391.PMID: 20565973 [PubMed - indexed for
MEDLINE]Free PMC ArticleRelated citations
2.
Proteome profile and lentiviral transduction of cultured honey bee (Apis
mellifera L.) cells.
Chan MM, Choi SY, Chan QW, Li P, Guarna MM, Foster LJ.
Insect Mol Biol. 2010 Oct;19(5):653-8. doi: 10.1111/j.1365-2583.2010.01022.x
. Epub 2010 Jun 7.PMID: 20546039 [PubMed - ... 阅读全帖
s******n
发帖数: 518
26
【 以下文字转载自 History 讨论区 】
发信人: shaodian (有熊), 信区: History
标 题: 美国在朝鲜战争使用生物细菌武器
发信站: BBS 未名空间站 (Mon Oct 1 22:38:02 2018, 美东)
wiki:
In 1952, during the Korean War, the Chinese and North Koreans insinuated
that mysterious outbreaks of disease in North Korea and China[43] were due
to U.S. biological attacks.[44] Despite contrary assertions from the
International Red Cross and World Health Organization, whom the Chinese
denounced as Western-biased, the Chinese government pursued an investigation
by t... 阅读全帖
h********r
发帖数: 519
27
Transcriptional responses in honey bee larvae infected with chalkbrood
fungus.
Aronstein KA, Murray KD, Saldivar E.
BMC Genomics. 2010 Jun 21;11:391.PMID: 20565973 [PubMed - indexed for
MEDLINE]Free PMC ArticleRelated citations
2.
Proteome profile and lentiviral transduction of cultured honey bee (Apis
mellifera L.) cells.
Chan MM, Choi SY, Chan QW, Li P, Guarna MM, Foster LJ.
Insect Mol Biol. 2010 Oct;19(5):653-8. doi: 10.1111/j.1365-2583.2010.01022.x
. Epub 2010 Jun 7.PMID: 20546039 [PubMed - ... 阅读全帖
d*****r
发帖数: 2583
28
☆─────────────────────────────────────☆
timeonly (圆满) 于 (Thu Dec 23 15:28:05 2010, 美东) 提到:
发信人: desesperado (Estoy), 信区: Military
标 题: 方舟子谈蜂蜜:基本上是高浓度的糖
发信站: BBS 未名空间站 (Thu Dec 23 12:11:10 2010, 美东)
http://discover.news.163.com/10/1223/10/6OJ4ABLE000125LI.html
核心提示:方舟子认为用人工的方法,可以制造出一种与蜂蜜一模一样成分的东西。其实蜂蜜并不神秘,基本上就是高度浓缩的糖。蜂蜜除了水分,剩下的几乎都是各种各样的糖。蜂蜜的成分会有变化,但大同小异。
中青在线-中国青年报12月23日报道 什么是蜂蜜呢?这个问题似乎很简单,是蜜蜂采集花蜜酿造出来的甜味物质。蜜蜂把花蜜吸到它的第二个胃 ——“蜜胃”里面,在那里进行消化(让花蜜中的蔗糖大部分转化成果糖和葡萄糖),回到蜂巢吐出来,让水分蒸发、浓缩,这样,原来
含水分大约 80%)... 阅读全帖
h********y
发帖数: 2092
29
来自主题: Chemistry版 - 2011 SCI影响因子及期刊简析(ZT)
动物学
总体而言,今年SCI收录的期刊大幅增加,以我所熟悉的动物学领域而言,期刊数
由127个增加到145个,相似的,环境学领域也由180个增加到192个。这或许是个好消息
,至少在目前的评价机制下,我们有更多的期刊可以进行筛选。
至于影响因子,动物学总体而言变化不大,Journal of Zoology, Journal of
Wildlife Management等均有小幅上升,而Journal of Mammalogy则小幅下降。与行为
相关的动物学期刊整体而言也略微下降,比如Ethology,Behavioral Ecology,
Behavioral ecology and Sociobiology等,不过在动物学领域仍旧是领先的期刊。值
得欣喜的是,动物所作为秘书机构的国际动物学会会刊Integrative Zoology首次进入
JCR即表现不凡,影响因子达到了1,相信其前景会更加光明。不过动物学报Current
Zoology此次并未进入JCR,明年应该会有影响因子,应该也不会太差。
鸟类学领域,IBIS继续稳居老二,看来AUK有点落伍了。
... 阅读全帖

发帖数: 1
30
来自主题: Military版 - 12 月26日 可能的真相
【Filariasis
From Wikipedia, the free encyclopedia
Filariasis
Life cycle of Wuchereria bancrofti, a parasite that causes filariasis
Classification and external resources
Specialty Infectious disease
ICD-10 B74
ICD-9-CM 125.0-125.9
Patient UK Filariasis
MeSH D005368
[edit on Wikidata]
Filariasis is a parasitic disease caused by an infection with roundworms of
the Filarioidea type.[1] These are spread by blood-feeding black flies and
mosquitoes. This disease belongs to the group of d... 阅读全帖

发帖数: 1
31
来自主题: Military版 - 中美进入你死我活新时代
12月27日 为什么我要替中国辩护
我要替中国辩护,并不是因为我是一个中国人,而是因为我知道中国就和这世界上绝大
数的国家一样,虽然有很多丑陋的现象,但是他们是受害者。就
象这个犯罪集团里很多的人一样,他们来自各种种族,他们可能充当了工具,但他们不
是制造这一切,谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂,他们只是打工者,他们只是按照各种雇主提供的配方来生产,他们并不知道
他们会产生怎样的后果。或者这些工人知道后果,但他们只是奴隶,他们又如何去改变
这一切? 所以,当我的调查不断往前推进的时候,不可避免地会涉及各国的企业,但
这并不表明是针对这个国家或这个国家的人民,而是针对一种社会现实和丑陋现象。就
拿菲律宾来说,菲律宾是一个犯罪猖獗的国家,有很多犯罪分子,但是菲律宾人民却是
这个集团的受害者,他们/她们被绑架,沦为了牺牲品,人体实验对象。一个日本人,
强奸上千名菲律宾女孩,却没有受到惩罚。以前我也提到过,有20个国家的名单,这20
个国家的人民其实都是受害者。现在他们把矛头对准中国,或许仅仅是因为我揭示了他
们图害世界人民的内幕,而我是一个中国人的缘... 阅读全帖

发帖数: 1
32
12月27日 为什么我要替中国辩护
我要替中国辩护,并不是因为我是一个中国人,而是因为我知道中国就和这世界上绝大
数的国家一样,虽然有很多丑陋的现象,但是他们是受害者。就
象这个犯罪集团里很多的人一样,他们来自各种种族,他们可能充当了工具,但他们不
是制造这一切,谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂,他们只是打工者,他们只是按照各种雇主提供的配方来生产,他们并不知道
他们会产生怎样的后果。或者这些工人知道后果,但他们只是奴隶,他们又如何去改变
这一切? 所以,当我的调查不断往前推进的时候,不可避免地会涉及各国的企业,但
这并不表明是针对这个国家或这个国家的人民,而是针对一种社会现实和丑陋现象。就
拿菲律宾来说,菲律宾是一个犯罪猖獗的国家,有很多犯罪分子,但是菲律宾人民却是
这个集团的受害者,他们/她们被绑架,沦为了牺牲品,人体实验对象。一个日本人,
强奸上千名菲律宾女孩,却没有受到惩罚。以前我也提到过,有20个国家的名单,这20
个国家的人民其实都是受害者。现在他们把矛头对准中国,或许仅仅是因为我揭示了他
们图害世界人民的内幕,而我是一个中国人的缘... 阅读全帖

发帖数: 1
33
来自主题: Military版 - 12月28日。 答案
12月28日 仔细阅读以下文章
或许这些文章可以告诉你们孩子被伤害病毒的答案。
Astellas Pharma 应该和这些人体实验有莫大的关系!
Founded 2005; 11 years ago
Headquarters 2-5-1, Nihonbashi-Honcho, Chūō-ku, Tokyo 103-8411, Japan
Key people Yoshihiko Katakana
(President and CEO)
Filariasis
From Wikipedia, the free encyclopedia
Filariasis
Life cycle of Wuchereria bancrofti, a parasite that causes filariasis
Classification and external resources
Specialty Infectious disease
ICD-10 B74
ICD-9-CM 125.0-125.9
Patient UK Filariasis
MeSH ... 阅读全帖

发帖数: 1
34
来自主题: Returnee版 - 中国骨干人才正在流失海外
12月27日 为什么我要替中国辩护
我要替中国辩护,并不是因为我是一个中国人,而是因为我知道中国就和这世界上绝大
数的国家一样,虽然有很多丑陋的现象,但是他们是受害者。就
象这个犯罪集团里很多的人一样,他们来自各种种族,他们可能充当了工具,但他们不
是制造这一切,谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂,他们只是打工者,他们只是按照各种雇主提供的配方来生产,他们并不知道
他们会产生怎样的后果。或者这些工人知道后果,但他们只是奴隶,他们又如何去改变
这一切? 所以,当我的调查不断往前推进的时候,不可避免地会涉及各国的企业,但
这并不表明是针对这个国家或这个国家的人民,而是针对一种社会现实和丑陋现象。就
拿菲律宾来说,菲律宾是一个犯罪猖獗的国家,有很多犯罪分子,但是菲律宾人民却是
这个集团的受害者,他们/她们被绑架,沦为了牺牲品,人体实验对象。一个日本人,
强奸上千名菲律宾女孩,却没有受到惩罚。以前我也提到过,有20个国家的名单,这20
个国家的人民其实都是受害者。现在他们把矛头对准中国,或许仅仅是因为我揭示了他
们图害世界人民的内幕,而我是一个中国人的缘... 阅读全帖
O*******d
发帖数: 20343
35
来自主题: gardening版 - Grubs 泛滥怎么办?
Imidacloprid is a systemic insecticide which acts as an insect neurotoxin
and belongs to a class of chemicals called the neonicotinoids which act on
the central nervous system of insects with much lower toxicity to mammals.
The chemical works by interfering with the transmission of stimuli in the
insect nervous system. Specifically, it causes a blockage in the
nicotinergic neuronal pathway. This blockage leads to the accumulation of
acetylcholine, an important neurotransmitter, resulting in the ... 阅读全帖
p****o
发帖数: 1100
36
hoho.. 幽默我没有。 无知的大概是你。。
看看下面的 机理吧!
The Bt toxin is so named because it comes from the bacterium Bacillus
thuringiensis. Farmers have used spray formulations of this bacterium on
their crops since the 1920s as a means to control certain insect pests. It
has been widely used in the Americas, Europe and Asia, and it is one of the
pesticides allowed for use in organic farming.
In determining the safety of Bt proteins, it is important to understand how
they work. When consumed by insects, the toxi... 阅读全帖
s**********e
发帖数: 2888
37
来自主题: Biology版 - 批评sunnyday同学一下
found an interesting article:
One of the favourite arguments of the pro-GM lobby in support of Bt-toxin GM
crops is that the Bt toxin has been safely used for decades by organic
farmers.
Many thanks to Susan Pusztai for the following information which precisely
delineates the very considerable differences between the use of Bt in
organic farming and the use of the Bt toxin as a transgene in GM crops.
This should be read in conjunction with Arpad Pusztai's recent comments,
posted to the ngin list... 阅读全帖
O**e
发帖数: 569
38
来自主题: Food版 - 哪种香料气味浓烈且不贵的
Pantry Pests Management
from http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7452.html
Getting rid of food-infesting moths or beetles takes continuous, persistent
effort at removing and cleaning up the infestation, especially if it has
been present for a while. Some pests are capable of living for many weeks
without food; thus the threat of reinfestation exists until they die off or
are killed. It is best, at least for several months after eliminating the
infested products, to store any susceptible f... 阅读全帖
kx
发帖数: 16384
39
来自主题: Thoughts版 - 我好笨啊
http://www.qiji.cn/eprint/abs/171.html
昆虫的振翅飞行原理研究进展
The Improvement of Insects Flight
学生:
北京大学 力学与工程科学系
理论与应用力学专业 98级
程暮林
指导教授:
北京大学 力学与工程科学系
陈滨
摘要
昆虫经过漫长的进化过程,获得了令人惊叹的飞行技巧,其高度的飞行机动性令现
代飞行器黯然失色。随着非定常流理论的完善,人们逐渐认识到非定常效应在昆虫
飞行中起十分重要的作用。实验中前缘涡及其产生机制的发现为解释昆虫是如何通
过振翅产生足够的升力奠定了基础。同时,借助于电子显微镜的帮助,人们认识到
昆虫的翅上存在若干智能微结构(the smart microair vehicles),使昆虫的翅在
振动过程中自动地变形为适当的形状。本文通过综述近几十年,国内外的研究进展
,提出一些尚待解决的问题,希望对进一步深入的研究有所帮助。
Abstract
Insects gain surprising perfect flight maneuverability through long evol
uti... 阅读全帖
m**********2
发帖数: 6568
40
Bt蛋白是有机农业用来控制虫害的主要手段之一,就是因为它是自然的而且对人类安全
无毒,并且已经有80多年的应用历史。有机的绿色蔬菜基本上都曾经喷过Bt蛋白。
Of cause 跟你这样的轮子说这些是浪费口水,希望对不像你一样歇斯底里的人可以有
所启发。
About organic pesticide
Bacillus thuringiensis (Bt)
There is a concern that the Bacillus thuringiensis (Bt) genetically
engineered into GMO corn, which is killing monarch butterflies and other
beneficial insects, is the same Bt that organic gardeners have used for
years. This is not true. The Bt sprays that we sell contain Bt bacteria
spores that are naturally encapsulat... 阅读全帖
c*****g
发帖数: 21627
41
来自主题: Military版 - 大家注意,味全不能买了 (转载)
你这个烂五毛,看过起诉书吗?
涉及的内容,都是在霉国的仓库的卫生状况,问题很严重,民众很生气:
the TDSHS inspectors observed a total of 80 violations including, but
not limited to, the following:
A. rodent droppings on and around food product;
B. rodent droppings on and around pallets;
C. rodent droppings on the floors;
D. numerous instances of gnawed cases and bags;
E. gnat-like insects and live flies;
F. doors left open allowing access of vermin;
The conditions observed during the inspection at Defendants' warehouse were
so severe and so
u... 阅读全帖
j***b
发帖数: 5901
42
Eventually, it's not really about who said it. It's still going to be said
by someone. Everyone has interest. So it's still yourself who make the
conclusion. Even interest groups seldom made official claims that are false.
They don't say they have scientific evidence because they don't have.
From wiki
Mold and Pest Control
The borates in cellulose insulation provide superior control against mold.
Installations have shown that even several months of water-saturation and
improper installation did ... 阅读全帖
G****e
发帖数: 11198
43
来自主题: Living版 - 如何对付蚂蚁和蟑螂
最好的办法是硼砂:
Borax
Mix together equal parts Borax and either syrup or jelly. Then, place
where
the ants will find it.
Why This Works: Once consumed, Borax damages both the ants' digestive
systems and their outer skeletons, resulting in death.
Where to Buy Borax?
Topics: unclassified
Share:
Answers
lgwork70: You can find borax right in your local grocery store or
department
store such as Target. It will be with the laundry detergents even
though it
has many other uses.
http://answers.ask.com/B... 阅读全帖
d********d
发帖数: 147
44
inspection report 上提到的,麻烦牛人给看看哪些是必须要修的。
1. Rooftop Material & Condition Further Review: There are spots of granular
covering missing at one or more areas of the roof. This condition is either
from age, manufacturing defect, moisture vapor forcing its way out or from
physical wear. This allows moisture to enter as well and may lead to damage
to the structures below. This covering material protects the asphalt from UV
exposure and damage. Page 6 of Report.
2. Rooftop Material & Condition Repair: T... 阅读全帖
O***n
发帖数: 13127
45
来自主题: SanDiego版 - 菜薹丰收 (转载)
好像有一种天然的细菌叫tB
好像是这个。我们同事的老公就告诉我homedepot有的买。他用来喷的。他家种的很好
。连房顶还无土栽培zucchini
Bacteria
Bacteria used for biological control infect insects via their digestive
tracts, so insects with sucking mouth parts like aphids and scale insects
are difficult to control with bacterial biological control.[11] Bacillus
thuringiensis is the most widely applied species of bacteria used for
biological control, with at least four sub-species used to control
Lepidopteran (moth, butterfly), Coleopteran (beetle) and Dip... 阅读全帖
k*****i
发帖数: 122
46
It could be bed bug or other insects such as rat mites.
If it's bed bug, you should be able to find them out by looking at your
mattress or drawer or other
furniture. Do some online search to see how to do some simple inspection by
yourself.
Otherwise buy some insect trap (e.g., CatchMaster insect trap and monitor),
or maybe get it free from
your city's pest control agency, put them around your bed. Once it catches
something, ask pest control
agency to identify the insect and then ask for advice... 阅读全帖
t*******7
发帖数: 4758
47
12岁从百慕大来的喜欢The Insect Man的人。
2010年想去百慕大来的喜欢The Insect Man的人。
梦里梦见12次百慕大的喜欢The Insect Man的人。
单身男性12年的喜欢The Insect Man的人。
……………………
我可以说出来成百上千个,但是哪个是对的呢?只有你自己知道呀。。。末动力呀!
a*********8
发帖数: 5368
48
来自主题: gardening版 - multch上面长的是蛆吗?
昨天傍晚在后院浇水,突然发现辣椒底下一堆白白的东西,乍看好像掉下来蔫了的花瓣。
仔细一看,啊~!天啊~!竟然是肉虫子,细看还在蠕动。恶心死我了。赶紧买了home
depot上次人家让我凑合用的这个Ortho Insect killer.也不知道有用没用。
这个恶心的东西也不是到处都是,就是有两颗辣椒附近特别多。谁知道它们是哪里来的
?怎么搞死?我本来想撒盐,但是zt说会把地变成盐碱地,不好,就没干。
矮油,太恶心了啊!
The Ortho Max 32 oz. Ready-to-Use Flower, Fruit and Vegetable Insect Killer
is designed to help protect your hard work in flower and edible gardens.
This product is specially formulated for gardens and landscapes and kills
over 100 insects including caterpillars, Japanese beetles, leafho... 阅读全帖
a**u
发帖数: 1485
49
来自主题: gardening版 - 学习笔记- what seeds can be saved?
seeds saving
What Seeds Can Be Saved? And how?
http://gardening.about.com/od/gardenmaintenance/a/SeedSaving.ht
http://forums.gardenweb.com/forums/load/seedsave/msg01153128858
So, is a good rule of them that self-pollinating species are generally safe,
whereas insect/wind-pollinated species require extra attention?
Generally, that's true. But growing only self-pollinating vegetables really
limits you in what vegetables you can grow. It limits you to only using
heirloom (open-pollinated), self-pol... 阅读全帖
c******n
发帖数: 16666
50
来自主题: Joke版 - 15块让你的生活充满ladybug
1500 Live Ladybugs - Good Bugs $15 shipped
Quote :
Product Description
Ladybugs are general predators that feed on a variety of slow-moving insects
including Aphids, Moth eggs, Mites, Scales, Thrips, Leaf Hoppers, Mealybugs
, Chinch Bugs, Asparagus Beetle larvae, Whitefly and other slow-moving
insects. Ladybugs are a must-have for organic gardening or organic farming.
A ladybug eats insects during both the adult and larval stages, so you can
buy ladybugs as adults and continue to have live ladyb... 阅读全帖
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