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N,N-dimethylformarnide surfactant methanol solution was developed to functionalize the surface of multi-waled carbon nanotubes (MWNTs).

摘要用甲基甲酰表面活性剂来超声分散多壁碳纳米管,制备碳纳米管增强的环氧树脂基聚合物。

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Picoline is the by-product in the preparation of diphenylamine with aniline.

甲基吡啶是连续缩合合的副产物。

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Often used in combination with Diacetyl and certain Diketones (Hexane-,Pentanedione).

名称:甲基乙酰甲醇,乙偶姻,3-羟基-2-丁酮,醋嗡.

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Objective To study the changes of GABA receptor during the acute poisoning of unsymmetrical dimethylhydrazine(UDMH).

目的研究偏甲基肼急性中毒时大鼠γ氨基丁酸(GABA)受体的变化。方法放射性配体结合试验。

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Results Results showed that methylmercury inhibited the neurite outgrowth and survival of PC12 cells.

结果氯化甲基汞能抑制PC12细胞突起生长,降低细胞活性。

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Hydroxymethylfurfural (5-HMF) is a degradation product of sugars.

甲基糠醛(5-HMF)是糖的降解产物。

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A gas chromatogram method to detect 3- methylindole content is est ablished.

建立了三甲基吲哚的气相色谱量测定分析方法。

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Results Three alkaloids were isolated from the plant.They were identified as N-methylcytisine(1),lupanine(2),sophocarpine(3).

结果从百蕊草总生物碱部位分离得到3个化合物,分别鉴定为N-甲基金雀花碱(1)、白金雀儿碱(2)和槐果碱(3)。

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The method of sulfomethylation modification of bayberry tannin extract was investigated.

研究了毛杨梅栲胶的磺甲基化改性方法。

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A improved process of p-amino-N,N-dimethylaniline applied caustic soda solution as materials was introduced.

阐述了采用液碱(苛性钠溶液)代替氨水生产对氨基-N,N-甲基的方法。

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The synthesis of feruloylated monoacylglycerol catalyzed by P-Toluene sulfonic acid was investigated.

研究对甲基磺酸催化合酸单甘油酯的工艺。

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The cream contains escin, hesperidine, methyl chalcone and coenzyme Q10.

乳液包七叶皂素、橙皮苷、甲基酮和Q10。

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In this paper, the cedrol methyl ether was synthesized by sodamide method.

本文采用氨基钠法合甲基柏木醚。

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The idea that a lack of methyl on the DNA can lead to human cancer is still just a hypothesis, and in any case oncologists have no drugs that can correct genome-wide undermethylation.

DNA上缺少甲基会导致人类出现癌症的想法,还只是个假说,肿瘤学家手头上也没有任何药物,可以用来改善基因组上的全面去甲基化。

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To increase the precision of the electric igniting parameters of common fusehead, a kind of wrapper such as NC or CMC,can be used to wrap the bridge wire in common fuse head .

为了提高普通点火头发火参数的精度,可以在桥丝上涂覆一层硝化棉或羧甲基纤维素的涂层。

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There was a death in Orlando in the US, said Liu Jia-ruei of the National Bureau of Controlled Drugs.In that case, methyl-aminorex was detected and it was listed as the cause of death.

管制药品管理局柳家瑞:在美国奥兰多发生致死的案例,死亡的案例里面,是有检验出甲基米雷思(Ice),是它的致死因素。

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Firstly, p-methylacetophenone was obtained in the presence of alchlor as the catalyst, and the optimum condition was 4:1:2 in molar ratio for toluene, acetic anhydride and alchlor with yield of 86.2%.

首先,以甲和乙酸酐为原料,在催化剂三氯化铝存在下合甲基乙酮,并确定甲,乙酸酐和三氯化铝的最佳摩尔比为4: 1: 2,收率为86.2%。

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Dimethyl fumarate, metyl topsin and sodium dehydrogene acetate were used in the antiseptic treatment during storage of Kudzu. The experiment indicated that the effects of metyl topsin was the best.

试用富马酸甲酯、甲基脱布津、脱氢醋酸钠3种防腐剂对抑制葛根采后的霉变情况进行初步研究,结果表明:在所用3种防腐剂中,甲基脱布津的防霉效果最好。

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Dimethyl phenylethyl carbinyl acetate (DPCA ) was synthesized by using a new catalyst. This technology decreases the pollution and can also be used in synthesis of other carbinyl acetates perfume.

用一种新型催化剂合乙酸甲基乙基原酯(DPCA),并简化了合工艺,减少了生产过程中产生的三废,因而投入生产已具备了必要条件。这种新型催化剂可用于其它原酯类香料的合

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This work applied the new type capillary column modified by barium sulfate. It has completed the solubilty of high boiling ester in para-methyl-toluate with the method of chromatography.

研究了硫酸钡微晶改性新型毛细管柱的应用.可用于色谱法测定完全互熔性高沸点酯类在对甲基甲酸甲酯中的溶解度.

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华尔街日报

And dimethicone just has a little bit of the Blue 1 colorant.

硅氧烷只有一点蓝色 1 号着色剂。

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WIL生活启示录

For methionine to stimulate mTOR, it needs to donate a methyl group.

硫酸铵要激活雷帕霉素靶蛋白(mTOR)的作用就必须“捐献”出一个组。

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经济学人-科技

Nor was the mother's own methylation affected by violence towards her.

而且她们本身基因的化与也跟是家庭暴力无关。

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科学60秒-科学美国人 2021年2月合集

But they think a compound called dimethyl sulfide might be the culprit.

但他们认为化合物二硫醚可能是罪魁祸首。

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美食、祈祷和恋爱

I think it might have methamphetamines in it.

里面可能放了安非他命。

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Asap SCIENCE 精选

Well, a recent UCLA study used epigenetics to propose that everyone has a gay gene, but it's whether or not the attachment of a methyl group to specific regions of DNA is triggered and turns it on.

加州大学洛杉矶分校(UCLA)最近的一项研究利用表观遗传学提出,每个人都有一个同性恋基因,但关键是一个对DNA特定区域的连接是被触发并激活。

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Vox 观点

It is a story that goes back decades and touches on methamphetamine, COVID, and most importantly, why you were able to buy a decongestant that didn't work.

这是一个可以追溯几十年前的故事,涉苯丙胺、COVID,最重要的是,为什么你能买一种不起作用的减充血剂。

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科学60秒-科学美国人 2023年3月合集

DNA methylation, which are the methyl group tags on your DNA..., serve as biomarkers of either things that have already happened in your DNA or potentially even can change the function in terms of how a gene is transcribed.

DNA 化——你 DNA 上的标签——是种生物标志物,要么标记已经发生在 DNA 上的事情,要么标记甚至有可能改变基因转录功能的东西。

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新知聚焦:科学

Our simulations show that the projected methylmercury concentrations in forage fish and Chinook salmon will surpass Canada's mercury consumption limits this century, as well as the consumption advisory level issued by the World Health Organization.

我们的模拟显示,本纪内,饲料鱼和奇努克鲑鱼中的预计汞浓度就将超过加拿大的汞摄入限额,以卫生组织发布的摄入指引水平。

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科学60秒-科学美国人 2023年10月合集

So we know that GLP-1 agonists have been proven safe for most people, but experts are concerned that they could cause problems in people who are malnourished from opioid or methamphetamine use, for instance.

我们知道 GLP-1 激动剂被证明对大多数人安全,但专家担心会让因阿片或苯丙胺等使用而营养不良的人出问题。

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科学60秒-科学美国人 2024年3月合集

Studies of the Dutch Hunger Winter actually show that people who were exposed to famine during gestation had differences in DNA methylation 60 years later, compared with siblings who were born later on.

对《荷兰饥饿严冬》的研究表明,相比饥荒后出生的兄弟姐妹,在母亲妊娠期处在饥荒中的人 DNA 化在 60 年后存在差异。

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《科学》杂志(双语精选)

One major study found that patients with post-traumatic stress disorder improved so much on the drug MDMA and talk therapy that two-thirds no longer had the disorder after two months.

一项重要的研究发现,创伤后应激障碍患者在服用药物亚二氧苯丙胺和谈话治疗后,病情有了很大的改善,两个月后三分之二的患者不再有这种障碍。

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Osmosis-遗传

A third way to get Prader-Willi syndrome, is a mutation in the imprinting center, which is a sequence of DNA near the Prader-Willi genes that directs imprinting via sex-specific methylation.

第三种导致普拉德-威利综合征的原因是印记中心的突变;印记中心是临近普拉德-威利基因的DNA序列,通过性别特异的化介导印记。

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VOA Daily Standard 2024年8月合集

Nigeria's National Drug Law Enforcement Agency says that over the past three years it has seized 7.6 million kilograms of illicit drugs such as cocaine, heroin, methamphetamine and cannabis.

尼日利亚国家禁毒执法机构表示,过去三年来,该机构已缴获 760 万公斤可卡因、海洛因、苯丙胺和大麻等非法毒品。

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BBC 听力 2023年9月合集

The United Nations Office on Drugs and Crime says the trafficking of methamphetamine is expanding rapidly in and around Afghanistan as the trade in heroin slows.

联合国毒品和犯罪问题办公室表示,虽然海洛因贸易有所放缓,但阿富汗境内其周边地区的苯丙胺贩运却有所加剧。

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VOA Standard 2013年10月合集

Horvath and his colleagues gleaned information from 8,000 samples to chart methylation in healthy and diseased organs, tissues and cells, from fetuses to centenarians.

霍瓦特其同事从8000个样本中收集了信息,用于绘制健康和有病器官、组织和细胞中的化情况,涉胎儿百岁老人之间各年龄的人。

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像科学家一样思考(视频版)

I'm using methylated spirits, and it needs to be in the freezer for half an hour before you start the experiment.

我打算使用化酒精,它需要在冰箱里放置半个小时才能开始实验。

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经济学人(汇总)

This quickly degrades into another chemical, dimethyl sulphide, which generations of those subjected to unimaginative school lunches will instantly recognise.

该物质很快会降解为另一种化学物质--二硫,闻这种物质产生的气味会立刻让人想起千篇一律的学校午餐的气味。

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连线杂志

Before we had this restriction, pseudoephedrine was being used to fuel the methamphetamine processing in different areas of the country.

在实施这一限制之前,伪麻黄碱曾被用于制造苯丙胺(冰毒),并在全国各地的非法实验室中被滥用。

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Scishow 精选系列

But if you manage to survive your first few hours after Dimethylcadmium exposure, don't get your hopes up.

但如果你吸入二镉后,在最初的几个小时里努力存活下来了,别抱太大希望。

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