on the synthesis of haptic textures

... blocks in the construction of five- or six-memberedheterocycles (Scheme 1) and in connection to our previous review articles.9−14 The classification is based upon carban-the size of carban-the heterocyclic ... Knoevenagel condensation reaction of oxathiolone 58 with α -phosphonyl carbanions 31b,c,e in refluxed ethanol in the presence of EtONa followed by sequential alkylation gave benzothien-3-ylphosphonates ... Cyclization of β -hydrazonophosphonates 75 into their corresponding 4-phosphonopyrazoles 76 was achieved via their reaction with triethyl orthoformate in xylene containing a few drops of glacial...

Ngày tải lên: 12/01/2022, 23:58

... The chemi- cal composition may also depend on the source of RH and set of experimental conditions Generally, a considerable rumber of impurities, in addition to residual carbon, accon- pany the ... among which RH occupy important position Secondly it’s silica content is highest among all of them C11), Pakistan produces sbout 4 million tons of paddy every year From which 8.8 million tons of ... Wollastonite is often formed in nature through chemical reaction between quartz and limestone C3) The reaction occurs under varying conditions of temperature and pressure at their contact zones, therefore,...

Ngày tải lên: 20/10/2014, 21:48

... with the only difference being the replacement of CuCl2·2H2O with the corresponding salts Figure 2.1 Synthesis Process of Cu-BTC Material 2.2.2 Synthesis of Two-Metal MOF Materials (M,M’-BTC) The ... distribution on the surface of the CNT support Figure 3.1 SEM Images of the Materials 3.1.2 Structural Characteristics and Chemical Composition of the Material The EDX spectra of the samples ... material on the GCE surface or using potential application to precipitate the material on the electrode surface The electrochemical synthesis method allows the material to be deposited on the electrode...

Ngày tải lên: 27/04/2025, 09:28

... surfactant ratio and the pH of the synthesis gel can greatly influence the characteristics of the resulting materials as they generally control the formation of micelles during the synthesis.8 Hence, ... layer The role of HCl in the synthesis process involves dehydrating the PEO segment and decreasing the solubility of the PEO block by the presence of Cl– ions in the aqueous solution.21 The increase ... the fact that the PEO chain becomes dehydrated with increasing amounts of HCl or the presence of large amounts of C1– ions Therefore, for the partial dehydration of PEO units, the volume of the...

Ngày tải lên: 07/08/2014, 14:20

... discussion: 56 pages The reference section has 122 documents on the relevant areas of the dissertation, updated to 2018 The appendix consists of 62 pages, including the spectroscopy of synthesized ... direction 2 Objectives of the dissertation 1 Research to improve the synthesis process of erlotinib hydrochloride drugs 2 Research on the synthesis and determination of quinazoline derivative ... ACADEMY OF SCIENCE AND TECHNOLOGY INSTITUTE OF CHEMISTRY - RESEARCH ON THE SYNTHESIS AND EVALUATION OF CYTOTOXIC ACTIVITY OF QUINAZOLINE Trang 2The work was completed at the Vietnam academy of...

Ngày tải lên: 09/01/2020, 15:09

... the ability of polymers on separating each of the rare earth metal ions on the ion exchange column Main contents of dissertation - Synthesis polymers containing suitable funtional group for the ... Figure 3.1 Effect of monomer concentration and reaction time on gel content of PAM-gel When the monomer concentration increases from 15% to 30%, the gel content increases and the reaction time decreases ... published on articles of national scientific journals and international conferences THE CONTRIBUTES OF DISERTATION This dissertation studied the conditions to synthesis two resins for ion exchanging:...

Ngày tải lên: 09/01/2020, 15:30

... in the visible light, thereby increasing the applicability in the practical reasons, the thesis is proposes as "Research on the synthesis and characterization of structure and properties of ... If the initial toluene concentration is in the Trang 13gas, reducing the light density on the surface of the TiO2 particles, resulting in a reduction in the efficiency of toluene decomposition ... increasing concentration of PO4 2- The concentration of HA is approximately 30% of Ca(PO4)6(OH)2 molecular formula; therefore it is suggested that the (PO4,CO3)6 (OH)2 The capability of absorbing the...

Ngày tải lên: 10/01/2020, 06:43

... discussion: 56 pages The reference section has 122 documents on the relevant areas of the dissertation, updated to 2018 The appendix consists of 62 pages, including the spectroscopy of synthesized ... direction 2 Objectives of the dissertation 1 Research to improve the synthesis process of erlotinib hydrochloride drugs 2 Research on the synthesis and determination of quinazoline derivative ... ACADEMY OF SCIENCE AND TECHNOLOGY INSTITUTE OF CHEMISTRY - RESEARCH ON THE SYNTHESIS AND EVALUATION OF CYTOTOXIC ACTIVITY OF QUINAZOLINE Trang 2The work was completed at the Vietnam academy of...

Ngày tải lên: 15/01/2020, 09:02

... interactions The authors attribute this phenomenon to the unique electronic configuration of the divalent cations and the symmetry of the metal coordination site during CO2 binding.The single ... SBUs to contruct new topology MOFs The obbject of this work is four-fold: (i) Ration design and synthesis of new MOFs, (ii) Descriptions and comparisons of these structures Consequently, the homogeneous ... reaction conditions such as solvent system, temperature, molar concentration, and pH The components of MOFs are interconnected through coordination bonds, along with various weak interactions like...

Ngày tải lên: 19/07/2021, 07:06

... Scheme 1.8 The mechanism of DMDO in the synthesis flavonols The DMDO method was used in synthesis of flavonoids compounds The reaction operation the solution in dichloromethane and acetone, with ... ring is ether a γ-pyrone (favaonoids and flavonones) or its dihydroderi vative (favaonols and flavonones) the position of the benzenoid substituent divides the flavonoids (3-position) Flavonols ... of the microwave irradiation in the reaction to hydrolysis the glycosidic bond of naringin 75 Figure 6.3 Graph of speed optimization of time, temperature, capacity of the microwave irradiation...

Ngày tải lên: 08/08/2021, 17:50

... the hardware properties of the haptic device • The analysis of the effects of spatial quantization on the passivity margin of multidimensional, non-linear virtual environments; and the new concept ... inversion point of this function depends on the size of the tip of the probe: the smaller the probe the lower the inversion point, also the larger the probe the smoother the surface [84] When a plastic ... is concluded with the discussion of the current understanding of the perception of virtual haptic textures generated with force feedback devices, thus setting the stage for the discussion of the...

Ngày tải lên: 17/02/2016, 14:42

... Review of the theories related to cohesion and translation - Analysis and synthesis of the collected data Design of the Study The thesis consists of three parts: Part I: Introduction states the ... discussion of the notion of equivalence can be found in Baker (1992), who seems to offer more detailed list of conditions upon which the concept of equivalence can be defined She shows the notion of ... worthy of the honor of being owned by Jim [2:31] Being wise, their gifts were no doubt wise ones A part from the repetition of word, repetition of structure also gives the strong feeling of cohesion...

Ngày tải lên: 14/12/2013, 00:40

... linux-2.4/init/main.c:35 Despite the huge addition of new features over time, the amount of conditional compilation dropped significantly in 2.4 with the adoption of init calls Another advantage of this technique ... a certain part of the kernel; others are more general and contain memory regions of 32 bytes, 64 bytes, and so on The advantage of using slabs is that structs or other regions of memory can be ... It is in charge of spinning the wheel and can thus be considered the "mother of all functions," the first breath in the computer's life Before start_kernel, there was chaos By the time start_kernel...

Ngày tải lên: 21/01/2014, 07:20

... for informational purposes only and on the condition that it will not form the basis for any investment decision Brocair Partners makes no recommendation whatsoever of the merits of any investment ... erectile dysfunction in men • Some of the devices used to treat the above conditions include: stone retrieval devices and catheters; foley urethral bladder catheters; intermittent catheters; prostatic ... engaged in the design, manufacture and marketing of the da Vinci Surgical Systems • The Company’s da Vinci Surgical System provides the surgeon with the intuitive control, range of motion, tissue...

Ngày tải lên: 13/02/2014, 06:20

... component to the model of the choice of the length of stay The decision depends on the value of the unobservable taste We can now construct the probability of observing a series of stay decisions If ... decide on options available at the end of one year, one that allows the officer to decide on options available only at the end of five years, and one that only allows the officer to decide on options ... decide on options available at the end of one year and one that allows the officer to decide on options available only at the end of five years The nonstochastic value of staying for one period is...

Ngày tải lên: 17/02/2014, 23:20

... characterization of the protein Its quantitative analysis by the bottom-up method under normal and abnormal conditions can then provide a direct indication of the upregulation or downregulation of the ... information on their backbone location However, the energetic (‘nonergodic’) dissociation of ECD is localized on the backbone, with little accompanying cleavage of weaker side-chain modifications such ... solution versus the gas phase, with H ⁄ D exchange identifying reactive regions of the conformation [43–45], ion mobility measuring conformational cross-sections [46,47], ECD identifying regions of...

Ngày tải lên: 18/02/2014, 16:20

... has long been one of the marvels of science fiction and fantasy, from the pages of The Invisible Man, to the magic invisibility cloak of the Harry Potter books, or the ring in The Lord of the ... compliment THE FOUR FORCES Over the last two thousand years one of the crowning achievements of physics has been the isolation and identification of the four forces that rule the universe All of them ... from the brilliance of the sunrise, the blaze of the setting sun, the dazzling colors of the rainbow, and the firmament of stars in the heavens could be described by the waves he was scribbling on...

Ngày tải lên: 05/03/2014, 16:15

... characteristics s The estimation results indicate that education plays a rather important role in the participation decision All else equal, the higher the level of education, the higher the probability of ... health of the elderly Section provides a reduced form analysis of the determinants of labour force participation of the elderly Section concludes Data and descriptive statistics The Survey of Health, ... to the particular composition of the countries’subsamples that are characterized by a severe condition As could be expected, the impact of a mild condition is less important Only in Germany, there...

Ngày tải lên: 05/03/2014, 18:20

... Overview of the Legal Framework in the United States on September 11 The U.S Constitution The Constitution Project The Geneva Conventions The Convention Against Torture The Torture Statute The War ... Interrogation The Constitution Project The Ethical Obligations of Medical Professionals Toward Detainees Separation of DOD and CIA Medical Personnel From Their Professional Ethical Obligations Revisions ... if they involve the participation of hundreds or thousands of people While the Pentagon controlled the narrative completely at the beginning, The Constitution Project 27 The Report of The Constitution...

Ngày tải lên: 08/03/2014, 04:22

... Agency of the Francophonie (AIF), the City of Dakar, the City of Geneva, the City of Delémont (Switzerland), the City of Lyon, the City of Paris, the City of Santo Domingo, the City of Curitiba, the ... consideration to the second phase of this summit Based on the conclusion of the review, improvements and innovations of financing mechanisms will be considered including the effectiveness, the ... century: the role of information technology in the context of a knowledge-based economy, “ Draft ministerial declaration, 11 July 2000 A public good is defined as one the consumption of which is “non-rival”...

Ngày tải lên: 15/03/2014, 19:20