Heating And Air-conditioning Technology For Radiant Heat Recovery In Kiln Wall Of Cement Plant

There is a large amount of energy waste in the cement production process, in which the waste of rotary kiln heat and the waste of high temperature exhaust gas at the kiln tail are the most serious. Therefore, the full and reasonable utilization of this waste heat resource is an important measure to improve the utilization degree and energy efficiency of waste heat, effectively reduce the heat pollution caused by waste heat emission to the environment, and protect the ecological environment. It is of great significance to realize energy conservation and emission reduction and regional sustainable development. The strategic goals are extremely important. At present, the waste heat mainly used by cement plants is the high-temperature flue gas at the kiln head and kiln tail, and there are few cases of recycling the radiant heat of the kiln tube wall. Therefore, based on the data provided by a cement plant in Shandong Province, China, a set of waste heat recovery equipment for the rotary kiln of a cement plant is designed. According to actual needs, a suitable lithium bromide absorption refrigeration unit and heat exchanger are selected to determine the waste heat utilization plan in winter, summer and transition season and make economic analysis

Research On Waste Heat Recovery Of Low Temperature Flue Gas In Cement Plant And New Type Heat Exchange

Based on the measured data of low-temperature waste gas at the outlet of waste heat boiler of a new dry cement production line in a cement factory in China, this paper investigates the utilization of waste heat, and formulates the technical scheme of waste heat utilization, and focuses on the design of the key waste heat exchanger for waste heat utilization, and carries out technical and economic analysis. According to our calculation results, the low-temperature waste heat recovery of cement plant has great potential. Using this technology can save more energy and obtain good economic benefits.In addition, a new type of heat pipe heat exchanger is designed and briefly introduced in this paper, aiming at the current situation that the existing heat exchange equipment only has heat exchange function without considering dust removal function.The design inspiration of the new type of heat pipe heat exchanger comes from cyclone and heat pipe heat exchanger, which combines the advantages of high heat exchange efficiency of heat pipe heat exchanger and good dust removal effect of cyclone.Heat exchange equipment for low temperature waste heat recovery needs to have some unique performance requirements.It can provide better choice for waste heat utilization of cement plant

Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR

Substantial experimental and theoretical efforts worldwide are devoted to explore the phase diagram of strongly interacting matter. At LHC and top RHIC energies, QCD matter is studied at very high temperatures and nearly vanishing net-baryon densities. There is evidence that a Quark-Gluon-Plasma (QGP) was created at experiments at RHIC and LHC. The transition from the QGP back to the hadron gas is found to be a smooth cross over. For larger net-baryon densities and lower temperatures, it is expected that the QCD phase diagram exhibits a rich structure, such as a first-order phase transition between hadronic and partonic matter which terminates in a critical point, or exotic phases like quarkyonic matter. The discovery of these landmarks would be a breakthrough in our understanding of the strong interaction and is therefore in the focus of various high-energy heavy-ion research programs. The Compressed Baryonic Matter (CBM) experiment at FAIR will play a unique role in the exploration of the QCD phase diagram in the region of high net-baryon densities, because it is designed to run at unprecedented interaction rates. High-rate operation is the key prerequisite for high-precision measurements of multi-differential observables and of rare diagnostic probes which are sensitive to the dense phase of the nuclear fireball. The goal of the CBM experiment at SIS100 (sqrt(s_NN) = 2.7 - 4.9 GeV) is to discover fundamental properties of QCD matter: the phase structure at large baryon-chemical potentials (mu_B > 500 MeV), effects of chiral symmetry, and the equation-of-state at high density as it is expected to occur in the core of neutron stars. In this article, we review the motivation for and the physics programme of CBM, including activities before the start of data taking in 2022, in the context of the worldwide efforts to explore high-density QCD matter.Comment: 15 pages, 11 figures. Published in European Physical Journal

Advancements in understanding cardiotoxicity of EGFR- TKIs in non-small cell lung cancer treatment and beyond

Epidermal Growth Factor Receptor-Tyrosine Kinase Inhibitors (EGFR-TKIs) are a class of oral targeted anticancer drugs that have been demonstrated to significantly inhibit tumor progression and improve clinical prognosis in patients diagnosed with EGFR-mutated tumors, particularly in those with non-small cell lung cancer. However, the sustained usage of EGFR-TKIs may cause potential cardiotoxicity, thus limiting their applicability. The primary objective of this review is to systematically analyze the evolving landscape of research pertaining to EGFR-TKI-induced cardiotoxicity and elucidate its underlying mechanisms, such as PI3K signaling pathway inhibition, ion channel blockade, oxidative stress, inflammatory responses, and apoptosis. Additionally, the review includes an exploration of risk assessment for cardiotoxicity induced by EGFR-TKIs, along with management and response strategies. Prospective research directions are outlined, emphasizing the need for more accurate predictors of cardiotoxicity and the development of innovative intervention strategies. In summation, this review consolidates recent research advances, illuminates the risks associated with EGFR-TKI-induced cardiac toxicity and presents crucial insights for refining clinical dosage protocols, optimizing patient management strategies, and unraveling the intricate mechanisms governing EGFR-TKI-induced cardiotoxicity

Pathogenicity and whole-genome analysis of a Siniperca chuatsi-derived Nocardia seriolae strain

A bacterial strain (No. 20230510) was isolated from the kidneys of diseased Siniperca chuatsi in Guangxi, China, since 2023. Artificial infection experiments demonstrated that this strain caused the observed disease in S. chuatsi. The isolate underwent morphological, pathological, genomic (whole-genome sequencing, WGS), and antibiotic susceptibility analyses. Infection trials revealed 100% mortality in high-concentration groups, with an LD50 of 3.89 × 104 CFU/mL, indicating high virulence. WGS results showed a circular chromosome of 8,123,106 bp (GC content: 68.14%), containing 7,638 CDSs, 72 tRNAs, and 12 rRNAs. Phylogenomic analysis revealed that strain 20230510 (CP130742) clusters with three N. seriolae strains with 98% bootstrap supporting, confirming its identification as N. seriolae. Further analysis identified 403 potential virulence genes linked to nutrient metabolism, regulatory factors, immune modulation, effector delivery systems, and exotoxins. Chromosomal comparisons also detected multiple antibiotic resistance genes. Susceptibility testing confirmed sensitivity to nine antibiotics, including enrofloxacin, doxycycline, florfenicol, and sulfamethoxazole. Histopathology revealed chronic granulomatous lesions, most severe in the kidneys, with similar but milder damage in the liver, spleen, gills, and intestines. These results confirm N. seriolae strain 20230510 as the pathogenic agent behind S. chuatsi mortality, offering key insights for developing control strategies

The Ninth NTIRE 2024 Efficient Super-Resolution Challenge Report

This paper provides a comprehensive review of the NTIRE 2024 challenge, focusing on efficient single-image super-resolution (ESR) solutions and their outcomes. The task of this challenge is to super-resolve an input image with a magnification factor of x4 based on pairs of low and corresponding high-resolution images. The primary objective is to develop networks that optimize various aspects such as runtime, parameters, and FLOPs, while still maintaining a peak signal-to-noise ratio (PSNR) of approximately 26.90 dB on the DIV2K_LSDIR_valid dataset and 26.99 dB on the DIV2K_LSDIR_test dataset. In addition, this challenge has 4 tracks including the main track (overall performance), sub-track 1 (runtime), sub-track 2 (FLOPs), and sub-track 3 (parameters). In the main track, all three metrics (ie runtime, FLOPs, and parameter count) were considered. The ranking of the main track is calculated based on a weighted sum-up of the scores of all other sub-tracks. In sub-track 1, the practical runtime performance of the submissions was evaluated, and the corresponding score was used to determine the ranking. In sub-track 2, the number of FLOPs was considered. The score calculated based on the corresponding FLOPs was used to determine the ranking. In sub-track 3, the number of parameters was considered. The score calculated based on the corresponding parameters was used to determine the ranking. RLFN is set as the baseline for efficiency measurement. The challenge had 262 registered participants, and 34 teams made valid submissions. They gauge the state-of-the-art in efficient single-image super-resolution. To facilitate the reproducibility of the challenge and enable other researchers to build upon these findings, the code and the pre-trained model of validated solutions are made publicly available at https://github.com/Amazingren/NTIRE2024_ESR/.Comment: The report paper of NTIRE2024 Efficient Super-resolution, accepted by CVPRW202

A new English term of 'Yudiba dam' and its differences from check dam

&amp;lt;p&amp;gt;&amp;amp;#160; &amp;amp;#160; &amp;amp;#160; &amp;amp;#160; The &amp;amp;#8216;Yudiba&amp;amp;#8217; is the Chinese Pinyin of an erosion control engineering measure, which has been widely implemented in the Chinese Loess Plateau and plays an important role in reducing sediment discharge and increasing cultivated land area. Although &amp;amp;#8216;check dam&amp;amp;#8217; has been widely used as the English term to represent the engineering practice for erosion control and become the general English translation of &amp;amp;#8216;Yudiba&amp;amp;#8217;, the &amp;amp;#8216;check dam&amp;amp;#8217; could not authentically highlight the soil and water conservation engineering of &amp;amp;#8216;Yudiba&amp;amp;#8217; in the Loess Plateau.&amp;lt;/p&amp;gt; &amp;lt;p&amp;gt;&amp;amp;#160; &amp;amp;#160; &amp;amp;#160; &amp;amp;#160; Here the differences between the &amp;amp;#8216;Yudiba dam&amp;amp;#8217; and the&amp;amp;#8216;check dam&amp;amp;#8217; were specifically discussed in aspects of purposes, sizes and main functions. Moreover, the English translations for the &amp;amp;#8216;Yudiba &amp;amp;#8217; were analyzed by comparing the connotations of the concepts, the different functions of the erosion control engineering in agricultural development and ecological improvement, as well as the simplicity when used in scientific studies.&amp;lt;/p&amp;gt; &amp;lt;p&amp;gt;&amp;amp;#160; &amp;amp;#160; &amp;amp;#160; &amp;amp;#160; The &amp;amp;#8216;Yudiba&amp;amp;#8217; is special soil and water conservation engineering measures, initiated from the Loess Plateau of China, referring to the dam structures built in various levels of gullies for the purpose of blocking sediment into cultivated land. The &amp;amp;#8216;check dam&amp;amp;#8217; is a small temporary barrier, grade control structure or dam constructed across a swale, drainage ditch, or area of concentrated flow. The &amp;#039;check dam&amp;amp;#8217; differed with the Yudiba dam&amp;amp;#8217; in purposes, sizes and main functions. Currently, various English translations were used in the literature, which were hardly accepted widely as either without representativeness or without simplicity.&amp;lt;/p&amp;gt; &amp;lt;p&amp;gt;&amp;amp;#160; &amp;amp;#160; &amp;amp;#160; &amp;amp;#160; We recommend the &amp;amp;#8216;Yudiba dam&amp;amp;#8217; based on Chinese Pinyin as the formal English term in order to distinguish between the &amp;amp;#8216;Yudiba dam&amp;amp;#8217; in the Loess Plateau and check dam&amp;amp;#8217; in other places. Thus, the &amp;amp;#8216;Yudiba dam&amp;amp;#8217; is suggested to refer to the erosion control measure, which has been widely built in the Loess Plateau of China with the main functions including trapping sediment, reducing gully erosion and increasing the area of farmland in the sediment rich area.&amp;lt;/p&amp;gt;</jats:p

Land-Use Composition, Distribution Patterns, and Influencing Factors of Villages in the Hehuang Valley, Qinghai, China, Based on UAV Photogrammetry

Rapid changes in land use have rendered existing data for land-use classification insufficient to meet the current data requirements for rural revitalization and improvements in the living environment. Therefore, we used unmanned aerial vehicle (UAV) remote sensing imagery and an object-based human-assisted approach to obtain ultra-high-resolution land-use data for 55 villages and accurately analyzed village land-use composition and distribution patterns. The highest proportion of land use in the villages is built-up land (33.01% ± 8.89%), and the proportion of road land is 17.76% ± 6.92%. The proportions for forest land and grassland are 16.41% ± 7.80% and 6.51% ± 4.93%, respectively. The average size of the villages is 25.85 ± 17.93 hm2, which is below the national average. The villages have a relatively scattered distribution, mostly concentrated on both sides of the main roads. The correlation analysis indicates that mean annual temperature (MAT) and annual precipitation (AP) are the primary factors influencing the land-use composition of villages, with contribution rates of 50.56% and 12.51%, respectively. The use of UAV remote sensing imagery to acquire ultra-high-resolution land-use data will provide a scientific basis for the planning of the living environment in the villages of the Hehuang Valley

An Investigation into the Influence of Blended Learning on Oral English Proficiency of Senior High School Students

We advocate the in-depth integration of information technology and education in the digital age, and we also encourage teachers of all disciplines to actively carry out online and offline blended learning. This study attempts to use an empirical research to apply the Blended Learning to the oral English teaching in the first year of senior high school. A one-semester teaching experiment is conducted to explore whether there is a significant difference in the students&amp;rsquo; oral English proficiency between the experimental class and the controlled class. The major findings of the study are as follows: (1) There are significant differences of students&amp;rsquo; oral English proficiency before and after the experiment in the experimental class and the controlled class; (2) Blended learning can improve students&amp;rsquo; oral English proficiency, among which pronunciation and intonation, range and accuracy of vocabulary and fluency of language are the most significant ones, while the accuracy and complexity of grammatical structure are insignificant.</jats:p