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The article focuses on the global ethylene production landscape in 2022, highlighting China's position as the largest producer with a significant market share and an impressive annual compound growth rate. Topics discussed include the distribution of production capacity, the consumption structure, and downstream industries in China's ethylene market.

The article offers information on the fluctuation of styrene prices in East China in 2023, with stability until May, followed by a decline and subsequent surge in July, reaching the highest level early in the year by late August. Topics include factors such as rising prices of raw material pure benzene, low operating rates of styrene plants, and stable downstream demand influencing the price dynamics.

The article focuses on the challenges of managing antithrombotic medications perioperatively in patients undergoing glaucoma surgery. Topics include the classes of anti-thrombotic drugs (antiplatelets, anticoagulants, direct oral anticoagulants), their impact on bleeding risk, minimizing bleeding risk, surgical factors, and considerations for different glaucoma surgery procedures.

The article provides information on China's styrene capacity and its distribution in different regions. China's styrene capacity accounts for a significant portion of the global capacity, and its proportion is expected to increase as its capacity continues to grow. The article also discusses the consumption analysis of styrene, with polystyrene (PS) being the largest downstream consumer, followed by expandable polystyrene (EPS) and acrylonitrile butadiene styrene copolymers (ABS).

The article offers information on the increasing imbalance between supply and demand for Acrylonitrile in China. It mentions that downstream industry chain has extended to the area of fine chemistry and high-end product manufacturing of which acrylonitrile industry has gradually become well-developed and part of its underdeveloped capacity has been eliminated.

The article reports that The acrylonitrile industry has turned from excessive supply to short supply to loosened supply. With the rise of downstream ABS industry, the demand for acrylonitrile is increasing, turning the acrylonitrile market into supply tightness. As a result, the profits of acrylonitrile producers rose sharply from 2017 to 2019, which encouraged a big number of chemical producers and refining/ chemical integrated producers.

the article highlights the growth rate of global styrene production capacity outside China has continued to slow down. As of the end of 2021, the total global styrene production capacity was close to 39.8 million t/a, of which China's total production capacity exceeds 15 million t/a, accounting for 38 percent of the global total.

The article discusses the Industrial Changes in Styrene Market. Topics include the continuous capacity expansion of China's styrene industry, its overall distribution has undergone obvious changes has suffered production capacity decline; and the number of new commissioning projects with technology has increased significantly with the perspective of the production scale, the proportion of enterprises with an annual production capacity.

The article offers information on the China's carbon black market followed and reversed "V" trend during the "13th FiveYear Plan" period. It discusses that domestic carbon black production mostly uses high-temperature coal tar, carbon black oil, and anthracene oil as raw materials and mentiosn that government strictly controlled the coking industry scale, forbade capacity additions in key regions, optimized the industry layout and regional energy supply, built up key coking industrial parks.

Inductively coupled plasma (ICP) is a well-known source for atomic spectroscopy, either using optical emission spectroscopy (OES) or mass spectrometry (MS) as a detection technique. The high energy and temperatures in an ICP (typically between 6,000 to 8,000 °C) lead to an efficient and complete decomposition of the sample as well as the vaporization, excitation, and possibly ionization of atoms in their gas phase. The high temperature of the plasma makes this source inherently robust and tolerant to a wide variety of sample types (such as solutions containing an elevated percentage of dissolved solids, different acids, and organic solvents). However, inadequate sample preparation, or inappropriate configuration of the sample introduction system, can have negative consequences such as drift of the analytical signal, increased backgrounds, inadequate detection limits, or unexpected interferences. This tutorial highlights the most important steps necessary for creating a trouble-free sample preparation workflow for elemental analysis. [ABSTRACT FROM AUTHOR]

The article focuses on the impact of the COVID-19 pandemic on supply-demand structure of the Chinese n-butanol (NBA) market, as of January 2021. It discusses the average productive profit of NBA Plants and prices of NBA varied from January-December 2020. It also highlights the consumption structure of NBA derivatives butyl acrylate and butyl acetate during January-December 2020.

The article analyses the market report of China's Synthetic Rubber Import and Export Trade in 2020. It mentions types of synthetic rubber such as styrene butadiene rubber, polybutadiene rubber, and Base rubber, ethylene propylene rubber. It also mentions information on the importing and exporting country, provinces and municipalities.

The article offers information on how linkage between the domestic and overseas 2-EH markets has strengthened since 2020. It mentions that global supply-demand changes have directly impacted 2-EH prices. It discusses that China's domestic 2-EH supply and demand continued to increase in the past five years.

The article informs that China has begun to implement National Phase V vehicle fuel standards nationwide by the end of 2017 and National VI standards, effective from January 1, 2019. It mentions that the optimal ratio of alkylate oil will increase in line with the accelerating pace of oil products upgrading and also mentions that alkylate oil (industrial isooctane) is an important gasoline component.

The article offers information on the commercial production of 1,4-Butanediol (BDO) in China by various processes which includes Reppe process, the maleic anhydride process and the butadiene process. Topics discussed include applications of BDO in various field like pharmaceutical, chemical and textile industry, cost of production and improvement in industry competitiveness.

The article discusses techniques that can be used for improving the locking time of frequency synthesizers. It includes dual charge pump structure with the loop-bandwidth, phase-locked-loop (PLL) frequency synthesizer and by installing a voltage-controlled oscillator (VCO). It further mentions that the time reduces by improving the connection between the degree of mismatch between source current and sink current.

The article offers information about the China's Styrene Market, along with mentions the balance of supply and demand associated with it. It discusses the increase in the Output, self-sufficiency rates and apparent consumption from 2016 to 2020. It mentions that Styrene prices in east China and how it pushed domestic output.

The article focuses on ethylene glycol (EG), an important organic chemical raw material mainly used to produce polyester fibers and antifreezing agents. Another use of EG is in the production of unsaturated polyester resins, lubricants, plasticizers, nonionic surfactants and explosives. It notes that in China, ethylene is usually used as the primary raw material to produce EG through ethylene oxide and the production units are all imported, citing Royal Dutch Shell as one of the sources.

The relationship between China's fixed assets investments and total cement output value based on the total cement production in China from 2000 to 2009 is used to predict the total output value of China's cement industry up to 2020. The historical data of the total output value of cement and cement production are then used to predict the theoretical demand for cement in 2020. The predicted equation of the relationship between total output value of cement and fixed assets investment is: total output value of cement = 0.0249 × fixed assets investment + 470.72. The relationship between theoretical demand for cement and total output value is used to predict the theoretical total energy consumption of cement from 2008 to 2020. [ABSTRACT FROM AUTHOR]

The article reports on a poster research presented at the annual Association for Research in Vision and Ophthalmology in 2021, showing that dry eye severity and treatment outcomes vary among patients who are members of racial and ethnic minority groups. According to medical student David Cui, the prevalence of dry eye ranges from 5-50% among the global population. The study subjects include Asian, Hispanic and African American individuals.

The article reports on the sustained demand growth for adipic acid in China. Topics discussed include development of the polyurethane sector, expansion of adipic acid units in the country, and growth in the automobile, and household electric appliance sectors. Also included is a chart for major adipic acid producers in China in 2013.

The article reports that Demand for isooctane is increasing year on year with China's improving quality standards for refined oil products as tax inspections over refined oil products have curtailed oil blending demand. It mentions that the Output has been on the rise following the gradual start-up of supporting alkylation units at state-owned enterprises and local refineries and their feed gas supply to the market is decreasing.

The article focuses on the production of methyl isobutyl ketone (MIBK) in China. It states that China started producing MIBK in the 1980s, but the demand for MIBK during that time had been low. The demand for MIBK started to increase in the field of rubber antioxidants and coating in the beginning of the 21st century. China depended on exports for its MIBK consumption, which increased to 64,427.2 tons in 2007 and 66,105.6 tons in 2009.

The article reports that new-energy vehicles (NEVs) will be setting directions for transforming automobile industry in China and mentions that NEVs include proportion of buses and passenger car. Topics discussed include decline in the proportion of plug-in hybrid electric vehicles, Catfish development mode innovation mode developed by automobile industry Tesla, and competition between domestic and foreign investment.

The article reports on the import volume of China of its eight major synthetic rubber varieties in 2017 including styrene-butadiene rubber (SBR), isobutylene-isoprene (IIR) and polybutadiene (PBR). The import origins, import customs and import destinations of the synthetic rubbers of China are explored. The imports are mainly from countries including South Korea, Japan and Russia that reached 979, 200 tons.

An industry report on Butanone market in China is presented from publisher China Chemical Reporter with topics including production, import and export, consumption and market price.

The article discusses the forecast on the capacity production of 1,4-butanediol (BDO) in China which tends to exceed by 2018 and will be considered in surplus. Topics mentioned include the use to produce tetrahydrofuran (THF), polybutylene terephthalate (PBT), and polyurethane (PU), the plan of the companie to expand or construct BDO units using Reppe production process, and the present tables which list the major producers in 2014 and units built from 2014-2018.

The article discusses the need for solution-polymerized styrene-butadiene rubber (SSBR) sector for upgrade in China. The industry has extensive applications in the shoe and tire industries, especially high-performance tires such as green tires, anti-skid tires and super light-weight tires. The global capacity to make SSBR has increased steadily.

To understand the firing technology and the level of production of glazed tiles in the Ming Dynasty, an ultraviolet-visible-near-infrared (UV-Vis-NIR) spectrophotometer and an energy-dispersive X-ray fluorescence (XRF) spectrometer were used to systematically analyze the glaze color and chemical composition of glazed tiles unearthed from the southern area of the Bao'ensi site. The results revealed that little difference exists in the main wavelengths of the same glazed tile samples, but that the colored elements of glaze with different colors are different. Iron (Fe) is the main element that affects the color of yellow glaze; copper (Cu) is the main element that affects the color of green glaze; and the main colorants that affect the color of black glaze are Fe, Cu, and manganese (Mn). The yellow and black glaze unearthed from the southern area of the Bao'ensi site were relatively mature in terms of raw material composition and technological formula, whereas the raw material and technological formula of green glaze were not stable enough. To meet temple construction needs, workers were skilled in firing glazed tiles with different glaze color requirements, indicating that the glaze color of the glazed tiles was relatively mature at that time. [ABSTRACT FROM AUTHOR]

The article discusses the broad development and utilization prospect on the production of pentaerythritol in China. It notes that Hubei Yihua Group Co. Ltd. has the biggest pentaerythritol production. It mentions that the company is the only enterprise with independent intellectual property rights in producing pentaerythritol. It also emphasizes that the Chinese pentaerythritol sector lags behind that of the advanced countries.

The article focuses on the overproduction of the vinyl acetate in China. In 2004, China produced 957000 tons of vinyl acetate that increased to 1.21 million tons in 2008 and to 1.73 million tons in 2011. Presently, about 68.9% of vinyl acetate is used in producing polyvinyl alcohol. China's consumption of vinyl acetate reached 1.45 million tons in 2008.

The article presents an optimistic projection of isophthalic acid (IPA) in China. Because of the global rise in demand of IPA, it is project that the production capacity in the country will reach by 128,000 tons per annum (t/a) in 2015. Moreover, it is forecasted that the demand for IPA will be at 215,000 tons in the same year.

The article offers developments in the polyphenylene sulfide (PPS), a thermoplastic resin possessing heat resistance, chemical corrosion resistance and flame retarding property, fiber industry in China. The country began its research and development of PPS in several universities in 1970 and in 2006, Jiangsu Ruitai Sci-Tech Co. Ltd. built a 1,500 tons per annum (t/a) PPS staple production line. In January 2010, Jiangsu expanded its facility by constructing a new production site in Zhangjiagang.

The article provides information regarding the increasing demand of butyl rubber in China. According to the International Institute of Synthetic Rubber Producers (IISRP), the production of butyl rubber increases in the country. The production has already reached 39,800 tons in 2006, an increase of about 2.1% over 2005 and was 16,000 tons from January to June 2007.

The article reports on the increase of the demand for paraformaldehyde in China. The paraformaldehyde capacity of the country increased at an average annual rate of 52.2 percent from 2001 to 2006. China's output of formaldehyde has not met the domestic market demand for many years due to the fast growth of downstream demand.

The article reports on the consumption of styrene-butadiene-styrene block copolymer (SBS) in China. SBS has the features of great strength, good flexibility and little permanent deformation. It is mainly used in shoemaking, asphalt modification, polymer modification and adhesives in the country. Its prospect for further development and application is very bright, and by the end of 2005, China had had three SBS producers with a total capacity of 240 thousand tons a year.

Analyzes the status of solution-polymerized styrene-butadiene rubber (SSBR) in China. Features of SSBR; Applications in the tire industry; Total capacity of SSBR; Average consumption of SSBR; Utilization rate of SSBR in China; Major SSBR producers in the world.

The article informs that sulfur oxides removal has been a global trend in the refining and petrochemical industry. It discuses the economic benefits of the application of the sulfur oxides reduction additive and the most cost-effective ways to use the additive under different regeneration conditions. Flue gas excess oxygen content is the decisive factor to some extent because it determines the conversion of S compounds to sulfur trioxide in the regenerator.

The article focuses on the status of the production of isopropanol in China from 2001 to 2007. According to the author, the annual growth of output has been around 11.4% on average and with an actual output of 115,000 tons. However, the country still cannot meet its own isopropanol demand despite of constant output increases.

A new microstrip open loop resonator bandpass filter (BPF) for wireless local area networks (WLAN) with a wide stopband response is presented in this article. The BPF consists of a pair of A12 open loop resonators and two additional resonators operating at the center frequency of 2.44 GHz. The novel resonator consisting of asymmetrical spurlines and quarter-wavelength open-circuited stubs are used at the input and output (I/O) feed lines to improve the stopband characteristics. The current distribution is demonstrated and analyzed. For the out of band spurious response suppression, its stopband attenuation loss is better than 20 dB from 2.6 to 10 GHz, and its insertion loss is as low as 1.05 dB. Good agreement is achieved between simulated and measured results. [ABSTRACT FROM AUTHOR]

This article describes an approach to extend the bandwidth of power amplifiers (PA) designed using resistive-reactive series of continuous class F modes (SCFM). By introducing third harmonic loads to the resistive-reactive SCFM PA, the overlap between the fundamental and harmonic impedances is solved and the operating bandwidth extended. Using this approach, a 0.5 to 2.3 GHz high efficiency PA was designed, with experimental results achieving 10 W output power and 59 to 79 percent drain efficiency from 0.5 to 2.3 GHz. [ABSTRACT FROM AUTHOR]

The article discusses the Automation Supporting Prolonged Independent Residence for the Elderly (ASPIRE) project which aims to develop small mobile robots or carebots for older people. Topics discussed include the study of the interaction of humans with small unmanned aerial vehicles (UAVs), a proposed optimal control formulation for the safe indoor navigation of UAVs, and the integration of human perception into low level controller (LLC) and high level controller (HLC).

The article discusses the development of AlGaN/GaN high electron mobility transistors (HEMT) for electrodes of multi-finger devices connection. It states the essential of device radio frequency (RF) measurements for the operation of millimeter wave frequencies. It also emphasizes the Angelov expressions to depict nonlinear characteristics and symbolically defined device (SDD) method for large-signal model.

The article discusses cotton fiber micronaire and portable near infrared (NIR) spectroscopy. It states that a program was carried out to expand the NIR measurement of cotton micronaire by portable NIR instrumentation form the laboratory to a non-laboratory location that is the cotton field. It also notes that the program consisted of qualitative NIR spectral analyses and quantitative NIR field.