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- 求翻译,除湿机功能按钮英文!
- Z主要是模式那三个真的搞不明白。
2014-03-11 12:05:49
515
2
- 求翻译英文文献
- 2.2. Material Characterizations. A field emission scanning electron microscope (SEM, JEOL 6701F) was used to investigate the morphologies, particle sizes of the samples. Transmission electron microscopy and elemental compositions of the ... 2.2. Material Characterizations. A field emission scanning electron microscope (SEM, JEOL 6701F) was used to investigate the morphologies, particle sizes of the samples. Transmission electron microscopy and elemental compositions of the samples were determined by JEM-2100F (JEOL) coupled with an energy-dispersive X-ray spectroscopy (EDX, Phoenix) system. Wide-angle and low-angle X-ray powder diffraction (XRD) of the as-obtained samples were recorded on a Rigaku D/max-2500 with Cu Kα radiation (λ = 1.540 56 Å) operated at 40 kV and 200 mA. Raman measurements were performed using a DXR from Thermo Scientific with a laser wavelength of 532 nm. To calculate the pore size distribution and pore volumes, the nitrogen absorption and desorption isotherms were measured at 77.3 K with an Autosorb-1 specific surface area analyzer from Quantachrome. The content of N in N-doped porous carbon was determined by NHC elemental analysis using Flash EA 1112. Thermogravimetric (TG) analysis of S/C composite was performed on TG/DTA 6300 in an N2 flow to obtain the S content in the composite. A four-contact method was applied to measure the powder electronic conductivity of porous carbons. The powder sample was pressed to disk at 4 MPa with two stainless-steel plungers, whose resistance was measured by a Keithley 2400 digital multimeter in fourwire mode. The conductivity of the sample was calculated according to the resistance and the size of the disk. Information of the surface elements was obtained by X-ray photoelectron spectroscopy (XPS) performed on the Thermo Scientific ESCALab 250Xi using 200 W monochromatic Al Kα radiation. The 500 μm X-ray spot was used for XPS analysis. The base pressure in the analysis chamber was about 3 × 10−10 mbar. All reported data of XPS binding energy are calibrated based on the hydrocarbon C 1s line at 284.8 eV from adventitious carbon. Spectra were fitted with Lorentzian−Gaussian functions and smart background using Thermo Avantage software. 展开
2014-12-28 15:14:51
551
1
- 求翻译段英文合同,谢谢了。
- The exhaust air from the kitchen shall be cleaned as sufficient as possible over the place of generation by an aerosol separator accommodated in the hood. The aerosol separators shall be easily accessible, easy-to-demount and cleanable in a... The exhaust air from the kitchen shall be cleaned as sufficient as possible over the place of generation by an aerosol separator accommodated in the hood. The aerosol separators shall be easily accessible, easy-to-demount and cleanable in a dish washer. To this end they shall be made of chromium nickel steel only. The rate of flow recommended by the manufacturer for the separator shall be kept. Knit fabric filters and plug-on grille filters as the only aerosol separators shall not be used. The exhaustion hoods in the kitchens which are arranged on top of kitchen equipment and used to collect vapor and steams quickly shall be designed such that a sufficiently high retaining capacity is achieved. Kitchen exhaust air hoods shall at least 0.2 m protrude over the circumference on top of the kitchen appliance. If the lower edge of the hood is higher than 2.10 m on top of the floor, a higher protrusion shall be provided (angle of opening = 12° from the edge of working areas). Collection chutes shall be free from burr and arranged such at all sides that they can be drained via drains. Hoods of chromium nickel steel with integrated lighting only shall be used as exhaustion hoods. If outdoor air lines to kitchens or other rooms are passed through fire sections, they shall be equipped with suitable and approved fire protection flaps or the pipeline shall be provided with a fire protection lining from the outlet of the room. The fire protection flaps used shall be tested and approved for the relevant case of application. Exhaust air channels shall be made of fire-resistant material. Specific measures are required for the use of gas heated large-size kitchen equipment in order to ensure the necessary supply of combustion air on the one hand and to ensure reliable exhaust gas dissipation on the other. If kitchen exhaust air and exhaust gases of gas appliances are fed off commonly, an additional safeguard shall be provided. This safeguard shall switch off the gas fired equipment if the exhaust air system fails. The high exhaust gas temperatures shall be taken into account when selecting the hood structure. In any case, gas equipment shall be operated only if the room air system is in operation. 展开
2011-01-06 01:05:10
491
3
- 急求翻译 请帮忙翻译一下这篇英文资料,急用!!!!
- Wells-BrookfieldCone/PlateRapidDeterminationOfAbsoluteViscosityIntroductionTheWells-BrookfieldCone/PlateViscometergivesresearchersasophisticatedinstrumentforroutinelydete... Wells-Brookfield Cone/Plate Rapid Determination Of Absolute Viscosity Introduction The Wells-Brookfield Cone/Plate Viscometer gives researchers a sophisticated instrument for routinely determining absolute viscosity of fluids in small sample volumes. Its cone and plate geometry provides the precision necessary for development of complete rheological data. Principle of Operation The Wells-Brookfield Cone/Plate Viscometer is a precise torque meter which is driven at discrete rotational speeds. The torque measuring system, which consists of a calibrated beryllium-copper spring connecting the drive mechanism to a rotating cone, senses the resistance to rotation caused by the presence of sample fluid between the cone and a stationary flat plate. The resistance to the rotation of the cone produces a torque that is proportional to the shear stress in the fluid. The amount of torque is indicated either on a dial or digital display, depending on model. This reading is easily converted to absolute centipoise units (mPa.s) from pre-calculated range charts. Alternatively, viscosity can be calculated from the known geometric constants of the cone, the rate of rotation, and the stress related torque. See Range Tables The correct relative position of cone and plate is obtained by following a simple mechanical procedure without the need for external gauges or supplementary instrumentation. The stationary plate forms the bottom of a sample cup which can be removed, filled with .5 ml to 2.0 ml of sample fluid (depending on cone in use), and remounted without disturbing the calibration. The sample cup is jacketed and has tube fittings for connection to a constant temperature circulating bath. The system is accurate to within ?.0% of the working range. Reproducibility is to within ?.2%. Working temperature range is from 0oC to 100oC. 展开
2018-11-17 09:10:28
445
0
- 翻译以下英文:
- The standard error of the mean (SEM) is a measure of how far your sample mean is likely to be from the true population mean. The SEM is calculated by this equation:SEM=SD/N. With large samples, the SEM is always small. By itself, the SEM i... The standard error of the mean (SEM) is a measure of how far your sample mean is likely to be from the true population mean. The SEM is calculated by this equation:SEM=SD/N. With large samples, the SEM is always small. By itself, the SEM is difficult to interpret. It is easier to interpret the 95% confidence interval, which is calculated from the SEM. 展开
2007-11-15 02:56:39
527
3
- 我有一段英文,看不明白,求翻译
- Thetubewillbesupportedbypillarswhichconstrainthetubeintheverticaldirectionbutallowlongitudinalslipforthermalexpansionaswellasdampenedlateralsliptoreducetheriskposedbyeart... The tube will be supported by pillars which constrain the tube in the vertical direction but allow longitudinal slip for thermal expansion as well as dampened lateral slip to reduce the risk posed by earthquakes. In addition, the pillar to tube connection nominal position will be adjustable vertically and laterally to ensure proper alignment despite possible ground settling. These minimally constrained pillars to tube joints will also allow a smoother ride. Specially designed slip joints at each stations will be able take any tube length variance due to thermal expansion. This is an ideal location for the thermal expansion joints as the speed is much lower nearby the stations. It thus allows the tube to be smooth and welded along the high speed gliding middle section. The spacing of the Hyperloop pillars retaining the tube is critical to achieve the design objective of the tube structure. The average spacing is 100 ft (30 m), which means there will be near 25,000 pillars supporting both tubes and solar panels. The pillars will be 20 ft (6 m) tall whenever possible but may vary in height in hilly areas or where obstacles are in the way. Also, in some key areas, the spacing will have to vary in order to pass over roads or other obstacles. Small spacing between each support reduces the deflection of the tube keeping the capsule steadier and the journey more enjoyable. In addition, reduced spacing has increased resistance to seismic loading as well as the lateral acceleration of the capsule. 有些桥墩与管道之间的细节问题希望能仔细处理清楚,十分感谢!! 追加15分! 能手动翻译一下吗?! 展开
2013-12-03 16:23:25
274
2
- 高分求高人翻译植物化学英文材料,谢谢
- Review Enzymatic protein hydrolysis plays a major role in various physiological processes, including digestion, and is regulated by proteinase inhibitors. Inhibitors in foods and food ingredients can reduce the absorption of free amino aci... Review Enzymatic protein hydrolysis plays a major role in various physiological processes, including digestion, and is regulated by proteinase inhibitors. Inhibitors in foods and food ingredients can reduce the absorption of free amino acids, and can impair protein hydrolysis in industrial processes. However, inhibitors can be useful tools in pest control, in the prevention and treatment of diseases such as cancers and AIDS, and in the elimination of unwanted proteinase activity in food processes. Proteinase inhibitors are also useful biochemical tools for studying proteinase classes and specificities. This article discusses how proteinase inhibition is involved in some processes of current interest to food scientists and technologists. Enzymatic protein hydrolysis is a major concern for biological scientists. The hydrolysis of proteins is catalyzed by peptide-bond-splitting enzymes (Box 1). Proteinases and peptidases are involved in the hydrolysis of protein during digestion, and have important roles in physiology and pathology. Enzymatic protein hydrolysis is controlled in several ways, including by the use of specific inhibitors (Box 2). Proteinase inhibition is a common process in nature. Proteinase-inhibitor interactions are involved in protein digestion, various physiological processes (e.g. blood coagulation, fibrinolysis, complement activation and phagocytosis), pathological processes (e.g. cancers and hypertension) and infection Another natural method of controlling proteinase activity is the synthesis of an inactive form of the enzyme, the zymogen. Zymogens are activated, usually by the action of another proteinase, in the digestive system and also during regulatory physiological processes. When an enzyme is in its active form, proteinase inhibition is an exquisite means of enzyme control in physiological processes, which is achieved by highly specific inhibitors. The importance of the control of proteolytic activity by inhibitors in physiological processes is demonstrated by the fact that inhibitor molecules exceed 10% of the total protein in human plasma. The fact that the control of proteolysis by inhibitors is so specific makes it a valuable tool in medicine, agriculture and food technology. The human immune deficiency virus proteinase, the digestive systems of crop pests, and fish muscle proteases are some examples of targets for study. Most organisms produce proteinase inhibitors as a means to control proteolytic processes.Some organisms store huge amounts of inhibitors, for example legume seeds and some leaves. This seems to be an evolutionary response to predation. Inhibitors for digestive proteinases in food and feed Some food ingredients contain so-called antinutritive factors: lectins, phenols, and other factors, including certain proteins that inhibit proteinases. The presence of proteinase inhibitors in living tissues seems to be a natural regulatory process 展开
2008-06-05 11:17:05
408
2
- 求助,英文文献翻译!
- 2. Experimental 2.1 Materials Nano-CaCO3 particles (D50: 30−70 nm by TEM (Fig. 1) and BET: ca.17m2·g-1) were supplied by Shanghai Zhuoyue Nanotech Corporation. Methyl methacrylate (MMA, Shanghai Lingfeng Chemicals) was purified ... 2. Experimental 2.1 Materials Nano-CaCO3 particles (D50: 30−70 nm by TEM (Fig. 1) and BET: ca.17m2·g-1) were supplied by Shanghai Zhuoyue Nanotech Corporation. Methyl methacrylate (MMA, Shanghai Lingfeng Chemicals) was purified by distillation under reduced pressure; potassium persulphate (K2S2O8, initiator, Shanghai Lingfeng Chemicals) was of chemical grade. Silane coupling agent A174 (γ-methacryloxypropyltrimethoxysilane) was purchased from Shanghai Yaohua Factory. Polyvinylchloride (PVC, WS-1000S) was supplied by Shanghai Chlor-Alkali Chemical Co., Ltd. Fig. 1 Morphology of untreated CaCO3 nanoparticles. Fig. 2 Morphology of PMMA-coated CaCO3 nanoparticles. 2.2 PMMA emulsion polymerization on CaCO3 nanoparticles 2.2.1 Surface silanation of nano-CaCO3 particles The nano-CaCO3 particles were homogeneously dispersed in ethanol (solid content 20%) by a sonication dispersion equipment. The slurry was then heated to 80°C with stirring, and the silane coupling agent A174 (5%, calculated based on the weight of nano-CaCO3 particles) was added into the slurry. After the slurry was stirred for 120 min at 80°C, it was filtered and the filter cake was then dried at 120°C in low vacuum for 120 min to obtain silanated CaCO3 powders. 展开
2011-05-16 00:26:36
449
4
- 求助,英文文献翻译~
- PMMA has good compatibility with PVC due to specific interaction of a hydrogen bonding type between carbonyl groups (C=O) of PMMA and hydrogen from (CHCl) groups of PVC (Belhaneche-Bensemra et al., 2002; Ramesh et al., 2002). Zhou et al... PMMA has good compatibility with PVC due to specific interaction of a hydrogen bonding type between carbonyl groups (C=O) of PMMA and hydrogen from (CHCl) groups of PVC (Belhaneche-Bensemra et al., 2002; Ramesh et al., 2002). Zhou et al. (2001) studied the relationship between the coating thickness of PMMA on the surface of talc and mechanical properties of PMMA-g-talc/PVC composites, and found that there existed a critical thickness. Xie (2001) found that the PMMA coating on talc improved the dispersion of talc in the PVC matrix and enhanced the interfacial adhesion between talc and PVC. There appears to be a critical coating thickness of PMMA on the talc surface for optimum toughening. Quan et al. (2002) reported improved toughness and intension of the PVC composites filled with CaCO3/ACR core-shell complex particles prepared by in-situ emulsion polymerization of acrylic ester. In the present work, PMMA coated on the surface of CaCO3 nanoparticles by in-situ emulsion polymerization was characterized by FT-IR and 1H-NMR. The effects of PMMA thickness and particle fraction on the mechanical properties of PMMA-coated CaCO3 /PVC nanocomposites were also investigated. 展开
2011-05-16 04:20:15
507
4
- 除湿机英文怎么写
- 除湿机英文怎么写
2010-08-31 01:10:50
923
3
- 求翻译。。。。。。。。。。。
- During the preparation of the nano-products, these nano-units, such as nanoparticles, nanoclusters, nanowires and nanorods, can also self-assemble into the novel structural aggregates by several routes, including electron irradiation deposi... During the preparation of the nano-products, these nano-units, such as nanoparticles, nanoclusters, nanowires and nanorods, can also self-assemble into the novel structural aggregates by several routes, including electron irradiation deposition [19], chemical vapor deposition [20], laser vaporization-condensation [21], charge transferring [22], an organic reagent-assisted method [23], solution-liquid-solid method [24] and catalytic vapor-liquid-solid growth [25]. With these routes, various nanoscale or microscale aggregates can demonstrate novel architectures, including tree-like, web-like, spherical, nanowire-like, network and fishbone-like aggregates. As a well-known method for producing the nanocapsules, however, arc-discharge has been rarely used to synthesize the aggregates self-assembled by the nanocapsules prepared simultaneously in arc-discharge. Nevertheless, it is possible that the arc-discharge can be developed into a new way to synthesize the aggregates. In the present work, we utilized arc-discharge technique with modified strategies, involving changing the hydrogen pressure, introducing gadolinium - aluminum alloy ingot as the anode and adjusting the elements percent of the anode according to their evaporation pressure, to synthesize a new type of nanocapsules, with intermetallic compound GdAl2 as core and amorphous Al2O3 as shell, which enlarge the family of the magnetic nanocapsules. At the same time, the regularly aligned three-dimensional macro-aggregates self-assembled by the nanocapsules without any template and catalyst were simultaneously synthesized in arc-discharge process. 展开
2008-06-09 10:41:10
377
1
- 数据采集的英文怎么翻译?
2010-07-05 09:53:28
397
1
- 翻译英文~专业类的
- Whilegraphene,acarbon-basedtwo-dimensionalnanomaterials,hasreceivedanupsurgeofinterest,[1]self-assemblyofsmallorganicandorganometallicmoleculesinto2Dnanostructurescouldal... While graphene, a carbon-based two-dimensional nanomaterials, has received an upsurge of interest,[1] self-assembly of small organic and organometallic molecules into 2D nanostructures could also be harnessed to develop new classes of functional supramolecular nanomaterials.[2] In principle, quasi-2D lamellae or nanosheets are planar structures having a thickness less than 100 nm and lateral dimensions a few orders of magnitude greater than their thickness. Control over the bilateral intermolecular noncovalent interactions is anticipated to organize small molecules into regular 2D nanostructures, which has been a formidable challenge yet to be achieved. Recently, Shelnutt and co-workers obtained discrete porphyrin nanosheets reprecipitated from their solutions;[3] Sathish and co-workers constructed hexagonal C60 nanosheets using a liquid–liquid interfacial precipitation method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline nanosheets of polycyclic aromatics using a surfactant- assisted reprecipitation and a physical vapor transporting method, respectively; and Zhang and co-workers suggested that molecules with intramolecular charge-transfer dipole moments could be grown into quasi-2D nanostructures.[7] Moreover, some amphiphiles and organogelators were found to self-organize into sheet-like nanostructures in contact with solvents.[8] Despite these advances, templateand surfactant-free synthesis of free-standing, crystalline, and optoelectronically active nanosheets from small molecules remains elusive. 展开
2010-03-06 01:33:12
460
6
- 纳米材料英文文献加翻译
2013-06-26 12:47:02
469
1
- 急求英文高手翻译一段摘要 有关夹具设计的
- Abstract In this paper, the general situation of research on agile fixture design is summarized and the achievements and deficiencies in the field of case-based fixture design are pointed out. There are no correlative case bases and match... Abstract In this paper, the general situation of research on agile fixture design is summarized and the achievements and deficiencies in the field of case-based fixture design are pointed out. There are no correlative case bases and matching mechanisms during the period from establishing the fixture planning to designing the fixture in currently used case-based fixture design systems. Thus a great amount of experience of fixture design is wasted and cannot be re-used, which reduces design efficiency and violates the original intention of case-based reasoning methods. In order to realize agility of fixture design, including re-configurability, re-scalability and re-usability, in this paper, a re-configurable agile fixture element base and an element assembly relation base are established. Using these two bases, the fixture structure is function-based decomposed, which makes it easy for an agile fixture to be re-configured and modified. Furthermore, a whole case-based agile fixture design model is presented, in which three modules are introduced, including the evaluation of the similarity of fixture planning, conflict arbitration and the modification of an agile fixture case. The three modules can be used to solve a problem where experience and design results cannot be re-used in the process of fixture design. Against the agile fixture design model, the evaluation method is put forward to evaluate the similarity in various phases. However, a similar case in the base could not generally meet the actual requirement and resolve the conflict between the similar case and the actual condition. Thus three methods, including a local restriction-relaxed method, a function-based conflict arbitration method and a case-based conflict arbitration method, are presented to clear up the conflict and could be used to modify the case to obtain an approach to a design result. Finally, an agile fixture design example is presented. The result demonstrates that the case-based agile fixture design approach can improve re-usability and design efficiency. Keywords: Agile fixture design; Case-based reasoning; Modeling 展开
2009-05-07 02:47:12
437
1
- 除湿机有没有定时功能?
2011-07-01 03:35:07
360
2
- 求化学翻译
- Graphite powder (<20m), hydrazine, ammonia, N,Ndimethylformamide (DMF), dopamine, 0.01M phosphate buffered saline (PBS; 0.138M NaCl, 0.0027M KCl, pH 7.4), and ascorbic acid were purchased form Aldrich and used as received. Doubly disti... Graphite powder (<20m), hydrazine, ammonia, N,Ndimethylformamide (DMF), dopamine, 0.01M phosphate buffered saline (PBS; 0.138M NaCl, 0.0027M KCl, pH 7.4), and ascorbic acid were purchased form Aldrich and used as received. Doubly distilled water was used throughout the whole experiments. The data of cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectra were obtained with a CHI 660 electrochemical workstation (CH instruments, Austin, TX). The electrochemical cell consisted of GCE (3mm diameter, Bioanalytical Systems, Inc.) as working electrode, Ag/AgCl (Bioanalytical Systems, Inc.) as reference electrode, and platinum wire as counter electrode. The impedance data were fitted to an appropriate equivalent circuit using ZsimpWin 3.0 software (Echem Software). The Raman spectra of graphene were obtained by micro-Raman system equipped with a homemade sample stage, a monochromator (SPEX 500 M), and a CCD camera (Roger Scientific model 7346-001) with 514.5nm wavelength laser line. Graphene was characterized by field emission scanning electron microscope (SUPRA 55VP, Carl Zeiss) and atomic force microscope (NanostationII, Surface Imaging Systems). 展开
2012-03-12 11:00:58
405
2
- 文献求翻译
- Since the formation of a titanacyclopropane en route to cyclopropylamines can only occur with alkylmagnesium halides that contain a b-hydrogen atom, Grignard reagents without b-hydrogens appeared to be the most promising reagents for th... Since the formation of a titanacyclopropane en route to cyclopropylamines can only occur with alkylmagnesium halides that contain a b-hydrogen atom, Grignard reagents without b-hydrogens appeared to be the most promising reagents for the synthesis of primary tert-alkylamines from nitriles (Scheme 1). Thus propionitrile (1a), phenylmagnesium bromide (2) and Ti(Oi-Pr)4 were chosen to optimize the reaction conditions. In the protocol for the synthesis of cyclopropylamines,10 Ti(Oi-Pr)4 is already present in the diethyl ether solution of a nitrile, before two equivalents of the Grignard reagent are added. As this did not appear to be optimal for the synthesis of primary tertalkylamines, the Grignard reagent was added before Ti(Oi-Pr)4. With 2 equivalents of PhMgBr, 0.1 equivalent of Ti(Oi-Pr)4, and 1 equivalent of propionitrile (1a), the primary tert-alkylamine 8a was not formed at all. With an equimolar quantity of Ti(Oi-Pr)4, the amine 8a was produced in a low yield (11%) but with 1 equivalent of Ti(Oi- Pr)4 and 3 equivalents of the Grignard reagent 2, a 60% yield of 8a was obtained. Monitoring of the reaction by workup of aliquots of the reaction mixture showed that the first addition of 2 to form the N-magnesio derivative of the corresponding imine was rapid, whereas the subsequent second addition of the Grignard reagent 2 required heating under reflux for up to 24 hours. In tetrahydrofuran instead of diethyl ether, the amine 8a was formed in a very low yield, if at all. 展开
2012-08-31 01:19:05
426
5
- 求韩语翻译
- 3원 촉매然 백금 같은 금속으로 된 수십 나노미터 크기의 촉매 입자가 별집 &... 3원 촉매然 백금 같은 금속으로 된 수십 나노미터 크기의 촉매 입자가 별집 모양의 틀에 발라져 있는 것입니다、 求准确翻译 PS 3元催化剂是安装在汽车排气管上的 展开
2012-12-19 08:48:48
434
1
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