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Given the pressing threat of global warming, it is imperative to promote CO2 emission reduction within the cement industry which is widely recognized as a major contributor to the overall carbon footprint. Limestone clay cement (LCC) emerges as a promising alternative to Portland cement. However, to facilitate the implementation of LCC technology, it is urgent to address the low early-age compressive strength issue. Inspired by the successful implementation of nano-engineered cementitious material, we hereby introduce a novel nanomaterial, graphene oxide (GO), into unconventional LCC paste (cement:clay:limestone = 65%:20%:15%, water/binder ratio: 0.45). Experimental results revealed that the 0.09% GO by weight of the LCC binder was the optimal dosage in this work, which improved the compressive strength of the LCC paste at 7, 14, and 28 days by 25.6, 21.6, and 20.3%, respectively. Advanced characterizations were then conducted, suggesting that the admixed GO not only enabled a higher polymerization degree of binder hydrates (which benefited the development of compressive strengths) but also improved the carbonation resistance of LCC paste. These findings not only offer valuable insights for researchers but also provide practical guidance for engineers in the field. Notably, the admixed GO converted the unstable orthorhombic crystal systemic aragonite to the stable trigonal crystal systemic calcite, which offers insights into the technology of carbon sequestration in concrete.

In this study,polytetrafluoroethylene(PTFE), a commonly used coalescence oil removal material, was selected and loaded with polyaniline(PANI) on its surface to successfully construct a superhydrophobic fiber material. It was then woven with hydrophilic cotton(Cot) fibers to form a superhydrophobic/hydrophilic heterogeneous material(PANI/PTFE-Cot) for the treatment of oily wastewater. The results indicated that PANI with micro-nano structure was successfully loaded on PTFE fibre, and the dosage of aniline and reaction temperature affected the hydrophobicity of PANI/PTFE. When the reaction temperature was 25 ℃ and the dosage of aniline was 0.2 mol/L,the water contact angle reached its maximum of 154°. Compared with that of PTFE,the quality factor of 2∶1 PANI/PTFE-Cot increased 46.7%.

Objective The North China Plain (NCP) is one of the most populated and economically developed areas in China and is a region with a high level of seismic hazards. Studying the Quaternary activity of the faults and the seismogenic mechanism of the large earthquakes in NCP is conducive to exploring the seismogenic pattern of intraplate earthquakes and reducing the damage caused by seismic hazards. The Liaocheng-Lankao fault (LLF) is an important buried deep major fault in the south-central part of the NCP. The activity of the LLF and its relationship with the 1937 Heze M 7.0 earthquake is still highly controversial. Methods In this study, the activity of the Liaocheng-Liaokao fault is finely studied by combining shallow seismic exploration, drilling, and Quaternary dating methods. Results Shallow seismic reflection profile ZF-2 reveals that the strata below 145 m are obviously displaced, and the strata above 145 m are disturbed. The Bachengsi drilling profile reveals 16 sets of marker layers and three west-dipping normal faults Fa, Fb, and Fc; they form a "compound Y" structure in the profile, of which Fa displaces the bottom boundary of the Holocene (burial depth of approximately 38.9 m) and is an early Holocene active fault. It also reveals four paleoseismic events since the Late Pleistocene, with vertical displacement of 1.2±0.2 to 3.7±0.2 m for a single event. Based on the stratigraphic offsets in the boreholes, the average vertical slip rate of this fault is calculated to be about 0.1±0.05 mm/a for the early Late Pleistocene and 0.35±0.04 mm/a for the late Late Pleistocene-middle Holocene. The fitted age-depth curves by the test results of seven 14C samples and four OSL samples can be divided into two segments. Within the depth range of 0 to 86.0 m (approximately 21 to 0 ka), the age and depth of the strata conform to the formula y=(253.69±16.56)x+(924.72±681.36), from which the average deposition rate of this section is calculated to be 3.94±0.26 mm/a. Within the depth range of 102.9 to 145.4 m (approximately 128 to 59 ka), the age and depth of the strata conform to the formula y=(1470.67±259.91)x+(-95061.92±30190.73), from which the average deposition rate of this section is calculated to be 0.68±0.12 mm/a. The vertical slip rate of the LLF and the sedimentation rate of the Dongpu Sag have increased significantly since the late Late Pleistocene. The intensity lines of the Heze M 7.0 earthquake show an asymmetric butterfly shape. Conclusion The 1937 Heze M 7.0 and M 6\begin{document}${\raise0.7ex\hbox{$3$} \!\mathord{\left/{\vphantom {3 4}}\right.}\!\lower0.7ex\hbox{$4$}} $\end{document} earthquakes formed "Z" -shaped ground fissure zones, which can be divided into three sections: the southeastern section (section A), the middle section (section B), and the northwestern section (section C). The long axis of the intensity lines and the distribution of the surface rupture of the 1937 Heze M 7.0 coincide with the NNE-striking Xiaoliu-Xieyuanjie and NWW-striking Dongming-Chengwu faults in location and striking. The analysis of the intensity lines, surface rupture distribution, focal mechanism solution of the 1937 Heze M 7.0 earthquake and M 6\begin{document}${\raise0.7ex\hbox{$3$} \!\mathord{\left/{\vphantom {3 4}}\right.}\!\lower0.7ex\hbox{$4$}} $\end{document} earthquakes, and regional stress implies that the Xiaoliu-Xieyuanji fault and the Dongming-Chengwu fault are the seismogenic faults of the 1937 Heze M 7.0 earthquake. The LLF, as the deep major fault in the region, controlled the accumulation of stress, stimulated the earthquake with its deep movement, and reduced the effect of the seismic energy westward, acting as the regional seismic controlling fault of the 1937 Heze M 7.0 earthquake. Significance This article proposes a method for fine detection of the localization, structure, latest activity age, sliding rate, and paleoseismic sequences of the buried fault and also proposes a pattern of seismicity in which seismogenic faults do not coincide with the regional seismic controlling fault. It provides new insights into the characterization of seismicity within the NCP and can provide the geological basis for urban and rural planning, high-speed railway design, and earthquake prevention and disaster reduction project construction in this region.

The Dongshang Uranium Deposit is situated in the southern section of the Ganfang Pluton in the Jiuling Orogenic Belt of northwestern Jiangxi Province. The U-bearing granites consist mainly of medium- to coarse-grained, porphyritic biotite(binary) granite. Through zircon and monazite U-Pb geochronology, petrology, and rock geochemistry studies, the U-bearing granites' age, source characteristics, and rock genesis were determined, and their uranium metallogenic potential was also discussed. The LA-ICP-MS analysis showed that the zircon U-Pb intercept and weighted average ages are both 152±1 Ma, and the monazite U-Pb intercept and weighted average ages are 151±1 Ma and 151±2 Ma, respectively, indicating the formation of the U-bearing granites during the early Yanshan period. The major elements exhibit the characteristic of high silica content (SiO2 ranging from 72.1% to 75.6%), high alkalis content (K2O+Na2O ranging from 7.26% to 8.43%), potassium-rich and sodium-poor (K2O/Na2O=1.07 to 1.42), high aluminum (A/CNK=1.12 to 1.29), low titanium content (TiO2 ranging from 0.07% to 0.17%), and iron-poor magnesium (FeOT ranging from 0.75% to 1.28%, MgO ranging from 0.19% to 0.31%), classifying the U-bearing granites as high potassium calcalkaline peraluminous granites. Trace elements Ba, Sr, Nb, and Ti are depleted, while Rb, U, Pb, and Ta are enriched, representing a typical low Ba, Sr granite. The total rare earth elements (ΣREE) are relatively low (∑REE=21.6×10−6 to 50.7×10−6), exhibiting a right-dipping light rare earth enrichment pattern with a prominent negative Eu anomaly, which belongs to S-type granites. Based on geochronology and rock geochemical features, it's suggested that the Dongshang U-bearing granites were formed during the syn-collision compressional setting, resulting from the partial melting of the muscovite-rich metapelites of the Anlelin Formation in the Neoproterozoic Shuangqiaoshan Group. High uranium content, high Rb/Sr ratios, Th/U ratios less than 3, and high zircon uranium contents indicate the potential for uranium ore-forming conditions within these granites.

In this study, two common cereal polysaccharides, arabinoxylan (HBAX) and β-glucan (HBBG), were prepared from the bran and endosperm of highland barley, respectively. The inhibitory effects, modes and types of the two polysaccharides on pancreatic α-amylase and their interactions with the enzyme were investigated by enzymatic kinetics and fluorescence quenching analysis. The results showed that both HBAX and HBBG effectively inhibited the activity of pancreatic α-amylase, the former being significantly more effective. Their inhibitory effects were both reversible, but their inhibitory types were different. HBAX presented mixed competitive and non-competitive inhibition, indicating that it not only can bind to the active sites of the enzyme, but also can form an enzyme-starch-inhibitor complex to block the enzymatic reaction. HBBG exhibited a mixed type of anti-competitive and non-competitive inhibition, suggesting that HBBG could only bind to the inactive sites of the enzyme to form an enzyme-starch-inhibitor complex. The fluorescence quenching results revealed that both HBAX and HBBG could interact with pancreatic α-amylase and quench its endogenous fluorescence statically. However, HBAX showed significantly higher affinity to the enzyme than HBBG, and could affect the polarity of the internal hydrophobic environment of pancreatic α-amylase, and in turn affect its microstructure. In conclusion, the differences in the inhibitory effects of HBAX and HBBG on the activity of pancreatic α-amylase might be related to their different inhibitory types and affinities to the enzyme. This study will provide a theoretical basis for the application of highland barley polysaccharides in the regulation of starch digestion and in low glycemic index foods.

The present study was to evaluate the diagnostic accuracy of different types of PCR tests with the aim of determining which one performs best for detecting Helicobacter pylori in stool samples. Related articles were searched from PubMed, Embase, Web of Science databases, Scopus, and Scholar Google. The quality of included studies was assessed using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) tool and RevMan5.4 software. Pooled sensitivity, specificity, DOR, PLR and NLR for the stool PCR test in detecting H. pylori infection were performed by Stata 15.0 software. Subgroup meta-analysis was performed by Open Meta-analyst software. Ten studies were selected in this study. Stool PCR test had 92.0 % (83.0, 96.0 %) pooled sensitivity, 96.0 % (84.0, 99.0 %) pooled specificity, 296.0 (51.6, 1,696.9) pooled DOR, 26.1 (5.3, 128.7) pooled PLR and 0.09 (0.04, 0.18) NLR in the diagnosis of H. pylori infection, and summary receiver operating characteristic curve (SROC) illustrated an area under the curve (AUC) of 0.98. Subgroup meta-analysis showed rtPCR as having the highest diagnostic accuracy. Our results identify rtPCR as having the highest diagnostic accuracy for the detection of H. pylori in stool samples, and the stool PCR test as a reliable diagnostic tool for H. pylori infection.

This paper analyzes the trend of power generation structure and carbon emission changes in the power industry and decomposes and analyzes the influencing factors of carbon emission in the power industry by using the LMDI decomposition method. Combined with the analysis of the influencing factors of carbon emissions in the power industry from 2016 to 2022, the carbon emissions of the power industry in the Yellow River Basin are simulated by the scenario analysis method. Four simulation scenarios were constructed based on the economic scale, industrial structure, industrial electricity consumption intensity, thermal power fuel conversion rate, and power supply structure. The IPSO-LSTM model for carbon emission prediction was created after optimizing the LSTM neural network prediction model. Combining the scenario analysis method to set the amount of changes in the high carbon, baseline, and low carbon scenarios of the influencing factors, the carbon emissions from the power sector in different scenarios are predicted for the years 2025-2035. From 2025 to 2035, the carbon emissions from the power sector in the three scenarios, except for the energy transition scenario, show a trend of increasing, then decreasing, and then increasing over the study period. The energy transition scenario shows a pattern of increasing and decreasing carbon emissions from the power sector.

As for the problem that the efficiency of picking of naval orange is low，a kind of picking actuator with surrounding and swallowing is designed，whose structure of implement is mainly consisted of multiplex slider rocker mechanism.Firstly，structure sketch of that installation is completed by referring to the operating principle of actuator designed，and the analysis of kinematics and dynamics is carried out.Then，the mathematical model of objective function is established based on the least consuming time，the optimized size of related structure are got by utilizing the Matlab software.Finally，based on the obtained dimension，the 3D model of end-effector is achieved，kinematics simulation is carried out by applying Adams software，the rationality and feasibility of design of actuator for naval orange harvesting is verified，and the theoretical support for the practical picking experiment is provided.

Monolayer transitional metal dichalcogenides (TMDCs), a new class of atomically thin semiconductor, respond to optical excitation strongly with robust excitons, which stem from the reduced screening in two dimensions. These excitons also possess a new quantum degree of freedom known as valley spin, which has inspired the field of valleytronics. The strongly enhanced Coulomb interaction allows the exciton to bind with other particles to form new excitonic states. However, despite the discovery of trions, most of the excitonic states in monolayer TMDCs remain elusive until recently, when new light was shed into the fascinating excitonic fine structures with drastically improved sample quality through boron nitride encapsulation. Here, we review the latest research progress on fine structures of excitonic states in monolayer TMDCs, with a focus on tungsten-based TMDCs and related alloy. Many of the new excitonic complexes inherit the valley degree of freedom, and the valley-polarized dark excitonic states are of particular interest because of their long lifetime and possible long valley coherence time. The capability of resolving the excitonic fine structures also enables the investigation of exciton–phonon interactions. The knowledge of the interlayer between excitons and other particles not only advances our understanding of many-body effects in the monolayer TMDCs but also provides guidance on future applications based on TMDCs.

Wind load is the control load in the design of power transmission tower. The shape coefficient of that can be obtained by CFD. Small calculation domain can affect the calculation accuracy, and large one can reduce the calculation efficiency. In this paper, the calculation domains with different sizes are designed to optimize the calculation domain size.

The shape coefficient is an important design parameter of high voltage power transmission tower. It can be obtained by means of CFD simulation. The inlet boundary condition will affect the calculation accuracy. In this paper, the turbulent inflow and the uniform inflow are used respectively. By comparing the calculation results of the two conditions, the simplified inlet condition of uniform flow is evaluated whether it is reasonable.

The construction of the digital energy internet is of great significance to the formation of the global energy internet. This paper uses the Rongchuang park of state grid Lanzhou power supply company as an example. Particularly, the key techniques from “source, grid, load, and storage” were summarized. It is key for the building of the energy internet Rongchuang park to increase the proportion of clean energy production and consumption, improve the intelligent level of the power grid, fully tap the potential of load side energy conservation and peak shaving regulation, and promote the system flexibility by energy storage techniques. This work supports the technological development and breakthrough of the energy internet park.

The change of industrial structure has a significant impact on energy consumption. The coordinated development between energy structure and industrial structure has a profound impact on the steady development of national economy and society. In this paper, focusing on the needs of industrial development layout and combining with the scenario of dual-carbon target constraint setting, a power-industry management analysis model is constructed, and a differentiated screening mechanism of industrial layout is realized under the three scenario Settings of dual-carbon target. According to the industrial development layout of Xinjiang, this paper studies the relationship between industrial development and energy and electricity consumption under different scenarios, selects the key industries according to the requirements of different scenarios, and carries out the scene comparison evaluation based on the industrial competitiveness evaluation. Finally, the paper puts forward specific suggestions from the perspectives of applying the coordinated layout of different scenes in stages, taking into account the coordination of regional layout, and striving for the practical linkage between industry and electric power.

IntroductionUltrasound-guided internal branch of the upper laryngeal nerve block (USG-guided iSLN block) have been used to decrease the perioperative stress response of intubation. It is more likely to be successful than blindly administered superior laryngeal nerve blocks with fewer complications. Here, we evaluated the efficacy of USG-guided iSLN block to treat postoperative sore throat (postoperative sore throat, POST) after extubation.Methods100 patients, aged from 18 to 60 years old, ASA I~II who underwent general anesthesia and suffered from the moderate to severe postoperative sore throat after extubation were randomized into two groups(50 cases per group). Patients in group S received USG-guided iSLN block bilaterally (60mg of 2% lidocaine, 1.5ml each side), whereas those in group I received inhalation with 100 mg of 2% lidocaine and 1mg of budesonide suspension diluted with normal saline (oxygen flow 8 L /min, inhalation for 15 minutes). The primary outcome were VAS scores in both groups before treatment (T0), 10 min (T1), 30 min(T2), 1h(T3), 2 h(T4), 4h(T5), 8h(T6), 24h(T7), and 48h(T8) after treatment. The secondary outcome were satisfaction scores after treatment, MAP, HR, and SPO2 fromT0 to T8. The adverse reactions such as postoperative chocking or aspiration, cough, hoarseness, dyspnea were also observed in both groups.ResultsPatients in group S had significantly lower VAS score than that in group I at points of T1 ~ T6 (P < 0.01). HR of group S was lower than that of group I at points of T1 ~ T2and T4 (P < 0.05), and MAP was lower than that of group I at points of T1 ~ T3 (P < 0.05). Satisfaction scores of group S were higher than that of group I (P ConclusionCompared with inhalation, USG-guided iSLN block may effectively relieve the postoperative sore throat after extubation under general anesthesia and provided an ideal treatment for POST in clinical work.

Objective To analyze implant survival rate and incidence rate of complications after All⁃on⁃4 implanta⁃ tion, and to discuss the technical points and consideration of All⁃on⁃4. Methods According to the criteria of inclusion and exclusion, 23 cases treated with All ⁃ on ⁃ 4 immediate restoration were referred, from January 2007 to December 2015, including 5 cases of edentulous maxillary, 14 cases of edentulous mandibular and 4 cases of both maxillary and mandibular were edentulous. All the patients received immediate function with provisional prostheses at the surgery day. Definitive prostheses were delivered to patients after 3⁃6 months post operation and follow⁃up visits were performed up to 9 years (average 3 years) after placement of definitive prostheses. Results In this study, the rate of implant re⁃ tention of 108 implants and 27 final restorations was 100% until the last review. Among the 23 patients, 3 patients had complications and the incidence of complications was 13.0%. Conclusion All⁃on⁃4 is an effective and reliable meth⁃ od in the treatment of dentures denture. The incidence of complications is low. All⁃on⁃4 is a practical method.

In order to solve the problems of the design and performance analysis interoperability,adjustability,the BWD mode and ASP dynamic web publishing technology integration are carried out,taking the multiple layered belt drive as the study object,using MATLAB secondary development,the multiple layered belt drive design and performance analysis systems is built,this system has a parameter matching,performance calculation and analysis module.The results show that intelligent design and analysis system design methodology based on WEB technology has certainly feasibility,the method can simplify the belt drive design process and performance characteristics research,improve the design efficiency.