摘要：Graphene-like N,S-codoped bio-carbon nanosheets(GNSCS) were prepared by a facile and environment-friendly NaCl non-aqueous ionic liquid route to house sulfur for lithium-sulfur battery. The natural nori powder was calcined at 900°C for 3 h under Ar, in which NaCl non-aqueous ionic liquid can exfoliate carbon aggregates into nanosheets. The structural characterization of GNSCS by a series of techniques demonstrates the graphene-like *** evaluated as the matrix for sulfur cathode, GNSCS/S exhibits more prominent cycling stability and rate capability.A discharge capacity of 548 mA h g-1 at a current density of 1.6 A g-1 after 400 cycles was delivered with a capacity fade rate of only 0.13% per cycle and an initial Coulombic efficiency(CE) as high as 99.7%. When increasing the areal sulfur loading up to 3 mg cm-2, the discharge capacity can still be retained at 647 mA h g-1 after more than 100 cycles with a low capacity degradation of only ~0.30% per cycle. The features of N/S dual-doping and the graphene-like structure are propitious to the electron transportation, lithium-ion diffusion and more active sites for chemically adsorbing polysulfides. It is anticipated that other functional biochar carbon can also be attained via the low-cost, sustainable and green method.

摘要：IP时间隐通道严重威胁着网络用户的信息安全,基于熵的检测方法是目前最有效的时间隐通道检测方法,可以检测已知的IP时间隐通道。而近期提出的liquid时间隐通道将包序列分为两部分,通过相互间的补偿来有效地躲避了熵的检测。针对liquid方法的特点,提出了基于滑动窗口的熵检测方法。该方法先利用滑动窗口找出隐信息包序列和补偿包序列,然后再基于正常通信和liquid通信在这两种包序列间存在熵差异性的特点实现检测,大量实验结果表明该方法能够有效地检测出liquid时间隐通道。

摘要：毫无疑问，大屏幕是手机发展的趋势之一，无论是国际品牌还是民族自主品牌都在加l大相应产品的研发和营销力度，定位于智能手机（SmartPhone）与平板电脑（Tablet）之间的“Phablet”产品可谓是层出不穷。大屏幕所带来的好处显而易见，不仅视野开阔，而且屏幕本身就是“触控板“，操控区域不会让人感到拥挤。全球著名电脑整合行销品牌Acer宏暮在2013年台北电脑展（Computex2013）前夕的新品发布会上向公众介绍了一款配备5．7英寸超大触控屏幕的机型liquidS1，就在近期liquidS1在上海举办的ChinaJoy2013完成内地首次亮相，并将于近期正式上市，这也是Acer首款超大屏手机。同时，S1集合四核处理器、88度超广角前置摄像头等流行配置以及浮动视窗等特色设计于一身，堪称大屏智能手初领域的“鸿篇巨制”，为消费者购机提供了新的选项。

摘要：Nature has created innumerable life forms with miraculous hierarchical structures and morphologies that are optimized for different life events through evolution over billions of *** cubic structures,which are often described by triply periodic minimal surfaces(TPMSs)and their constant mean curvature(CMC)/parallel surface companions,are of special interest to various research fields because of their complex form with unique physical *** has prompted the scientific community to fully understand the formation,structure,and properties of these *** this review,we summarize and discuss the formation mechanism and relationships of the relevant biological structures and the artificial self-assembly *** structures can be formed through biological processes with amazing regulation across a great length scales;nevertheless,artificial construction normally produces the structure corresponding to the molecular size and ***,the block copolymeric system is considered to be an applicable and attractive model system for the study of biological systems due to their versatile design and rich phase *** of the phenomena found in these two systems are compared and discussed,and this information may provide new ideas for a comprehensive understanding of the relationship between molecular shape and resulting interface curvature and the selfassembly process in living *** argue that the copolymeric system may serve as a model to understand these biological systems and could encourage additional studies of artificial self-assembly and the creation of new functional materials.

摘要：为了满足路途遥远、现场施工极端困难条件下的固井需要，BJ公司研制了liquid Stone液态可存储水泥浆。该水泥浆可储存较长时间，密度变化范围为0．97～2．52kg／L。该水泥浆可在基地混配好，不用在现场进行混配，浆体配好后性能也会被“锁定”，长期储存无沉淀、无密度变化，会一直保持设计的性能。当水泥浆泵入井下后，才被激活，而后固化。

摘要：源自意大利的法拉利，自1947年开始就生产高性能的跑车，历年来的车款都由著名的设计工作室如Pininfarina、Scaglietti、Bertone负责设计．一向以引领潮流著称。

摘要：Acer宏基在中国全球首发全能娱乐智能手机AcerliquidE1，代号“一万”——独具匠心的典雅外观，搭载1．0GHz双核处理器驱动、最新Android4．1果冻豆系统、4．5英寸全视角高清大屏，9．9mm轻薄机身设计，搭配全球领先高端音频优化技术DTSSoundD．独特双喇叭出音孔，为中国年轻用户带来最新随身娱乐体验。

摘要：演绎诗意的瓷器由艺术家Atissa Volchkova创作的liquid系列瓷器作品将工业概念与诗意诠释相融合，形成一套多姿多彩的瓷器系列。

摘要：在PC领域，ACer的产品一向以性价比高著称，到了智能手机时代，Acer依然保持着这一原则。不久前Acer再次发布了一款全新的智能手机Acer liquid El，这是一歉全功能娱乐手机，不仅拥有华丽的外观和强劲的性能，采朋厂双核处理器和4．5英寸大屏，配置也相当出色，售价为1499元，性价比颇高。在外观设计上上，El给人以眼前一亮的感觉，可以说是个性十足。其机身线条非常圆润，有黑和白两种颜色，我们测试的是白色的机型，更是显得珠圆玉润。

摘要：A new instrument called capacitive drop analyser (CDA) for measuring the physical properties of liquid is developed.A delivery head with a specialized wetting design was constructed for forming *** capacitive transducer uses the delivery head as one of its plates and a cylindrical ring *** linearity is achieved by optimising the design,with an accuracy of drop volume measurement of approximately 2 μ*** is suitable for measuring both drops in equilibrium and those in the process of *** capability of real time measurement makes it particularly useful for volatile liquids,in which instance the measurement of drop volume using a flowmeter or a pump is no longer *** CDA can also be used to determine *** is found that concentration curve is linear for aqueous glycerol solutions although not so for aqueous ethanol *** CDAs capability of measuring surface tension is also explored and experimental results are presented.