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In the context of the dual-carbon goal, virtual power plants, microgrids and other forms of prosumers have emerged on a large scale. Energy sharing among multiple prosumers can improve the overall economic efficiency and new energy consumption. A collaborative operation mechanism for energy sharing among multiple prosumers under the weak centralization model is proposed. The mechanism considers the data privacy of each prosumer. Firstly, an internal scheduling model of prosumers with multiple distributed resources is constructed. The model considers the volatility and randomness of load demand and new energy output, quantifying the risk of uncertainty based on conditional value at risk (CVaR). Then, a weakly centralized tariff iteration mechanism for multiple prosumers is proposed, which uses the supply and demand relationship to guide the tariff update. Meanwhile, considering the privacy protection of prosumers, the power data aggregation method is designed based on Paillier homomorphic encryption algorithm and secret sharing principle. The method is able to obtain the system supply and demand information while ensuring the privacy of all parties. Finally, the effectiveness and rationality of the mechanism proposed in this paper is verified by an arithmetic example, and the overall cost of multiple prosumers is reduced by 12.6% after energy sharing.

The B4C-stainless steel composites with B4C mass fraction of 4.00% were prepared by spark plasma sintering (SPS) method, using B4C microspheres and 304 stainless steel powders as the raw materials. The density of the composites was tested by the drainage method, the microstructures of B4C and stainless steels were analyzed by scanning electron microscope (SEM), and the effects of sintering temperature and pressure on the density and microstructure of the composites were investigated. The results show that, the thickness of the interfacial reaction layer increases with the increase of sintering temperature. Meanwhile, increasing the sintering pressure can significantly reduce the sintering temperature, which inhibits the growth of the interfacial reaction layer between B4C and stainless steels. When the pressure reaches 150 MPa, the relative density of the composites can reach 99.5% after sintering at 950 ℃ for 6 min, and the thickness of the interfacial reaction layer is less than 5 μm.

[Objective] Researches on the effects of freeze-thaw action on slope soil erosion in the Chinese typical Mollisol Region can deepen the understanding of the mechanism of slope erosion process and provide important scientific basis for slope erosion control. [Methods] Using snowmelt, wind and rainfall erosion driven by a single erosion forces as controls, the effects of freeze-thaw on snowmelt, wind and rainfall erosion were analyzed by designing simulation experiments of freeze-thaw-snowmelt, freeze-thaw-wind and freeze-thaw-rainfall in the typical Mollisol Region of China. The experiment treatment consisted one freeze-thaw action, two snowmelt runoff flows (1 and 2 L/min), one wind velocity (12 m/s), one rainfall intensity (100 mm/h) and one slope (3°). [Results] (1) The freeze-thaw effect significantly increased the amount of slope snow melt, wind and rainfall erosion (p

Facing the challenges of increased complexity in 6G network architecture design and deployment due to diverse network scenarios and the pluralization of network elements, a digital twin-based method for modeling, evaluating, and optimizing the 6G network architecture was proposed. Initially, the intricate elements in the network architecture were systematically categorized, leading to the establishment of a three-domain model comprising service, logical, and physical domains in the digital twin space. Subsequently, the three domains and their intricate relationships were modeled in detail using hypergraph theory. Furthermore, the concept of network architectural entropy was introduced to quantitatively assess the rationality of the design and deployment scheme of the 6G network architecture. Finally, a method for constructing 6G network architectural entropy was proposed, and the design idea of 6G network architecture entropy reduction was developed and formulated. Simulation results demonstrate that the proposed architecture entropy reduction theory can quantitatively evaluate the pros and cons of 6G network architecture design and deployment schemes in various scenarios and offer optimal design guidance.

Facing the future vision of ubiquitous network coverage, the deep integration and cooperative networking between satellite and terrestrial mobile communication network is a necessary technical path to build a space-air-ground integrated network, which can support access at anytime and anywhere. Firstly, current situation and development trend of space-air-ground integrated network were introduced. Then, the network architecture of satellite-terrestrial network and the design of space-based simplified core network were discussed, as well as the key technologies of satellite-terrestrial network. Finally, the proposed network architecture was verified by relevant experiments. and the follow-up research plan and outlook for future directions were discussed.

Objective: This study aimed to extend the storage period of fresh-cut Lanzhou lily. Methods: Fresh-cut Lanzhou lily was used as raw materials. Following fresh-cut processing, the raw materials were soaked with 0 (CK), 1, 5, and 10 g/L of SI solution to analyze the quality changes of fresh-cut Lanzhou lily during storage. Results: The soaking treatment with 10 g/L of SI could better maintain the brightness of freshly cut Lanzhou lily. At 21 days of storage, the concentrations of malondialdehyde, soluble sugar, and browning were, respectively, 45%, 8%, and 23% lower than those of the CK group. The SI-treated group had significantly decreased polyphenol oxidase, peroxidase, and lipoxygenase (97.22, 0.09, and 11.89 U/g, respectively) activity at the end of storage compared to the CK group (P＜0.05). In addition, electronic nose analysis showed that SI treatment modulated the flavor of fresh-cut Lanzhou lily during storage. Conclusion: SI soaking treatment is a simple, economical, and safe post-harvest treatment technique that can delay the oxidative browning of fresh-cut Lanzhou lily and thus maintain its quality during storage.

This paper mainly reviews the history and prospects of the atmospheric motion vector (AMV) of meteorological satellites. The development history of AMV and some milestone events are first introduced before briefly discussing them in the contexts of China, the United States, Europe, and Japan. The first section provides a detailed summary of the characteristics and key technologies of various traditional AMV algorithms, introduces the cross-correlation, pattern recognition, and nested tracking approaches, and describes five commonly used height assignment algorithms and their basic principles. The second section discusses several recently developed AMV products based on computer vision and machine learning technologies and introduces the advantages and research histories of the optical flow method, and three-dimensional and mesoscale AMVs. Finally, we compare the advantages and disadvantages of new and traditional AMV algorithms before examining the potential for future applications and development trends. We specifically highlight the higher spatial resolution obtained by the advanced optical flow method, better wind field information from three-dimensional AMV, and finer spatial and temporal resolutions of special weather from mesoscale AMV such as cyclones. Furthermore, we predict more promising three-dimensional and mesoscale AMVs in the upcoming future.

ObjectiveObserve the effect of ultrasound visualization needle combined with rehabilitation training for knee osteoarthritis .Methods70 patients with knee osteoarthritis, admitted from August 2021 to March 2023, were randomly divided into observation and control groups, with 35 patients each. 4 patients in the ultrasound knife group and 6 patients in the conventional treatment group withdrew.The observation group underwent treated under ultrasound guidance, combined with quadriceps rehabilitation training .ResultsThe efficacy of ultrasound visualization combined with rehabilitation training for knee osteoarthritis was compared between the two groups of patients, with no significant difference (P> 0.05).After treatment, VAS and WOMAC scores decreased in both groups, but the decrease was more obvious in the ultrasound knife group, with VAS score (P

ObjectiveUsing the liquid chromatography-tandem mass spectrometry (LC-MS/MS) to determine the plasma level of Lyso-GL3 in patients with Fabry disease and to analyze the clinical application of the method.MethodsThirty-nine patients with a genetic diagnosis of Fabry disease were included, and plasma levels of Lyso-GL3 were measured by LC-MS/MS analysis, and detailed clinical information of the patients was obtained including: α-galactosidase A activity, genetic variants, quantification of urine protein, mean arterial pressure, and estimation of glomerular filtration rate, and the differences in the levels of Lyso-GL3 in different clinical phenotypes and genotypes were statistically analyzed, as well as the association with clinical indicators.ResultsLyso-GL3 showed good linearity within 0.7856-400 ng/mL(r=0.9992).Further analysis of 39 Fabry disease patients diagnosed in Ruijin Hospital, Shanghai Jiao Tong University School of Medicine showed a median Lyso-GL3 concentration of 23.6 ng/mL(4.3-92.9 ng/mL); Lyso-GL3 levels were significantly higher in patients with both the frameshift and the splicing mutations, as well as in patients with the nonsense mutations, than in patients with the missense mutations (median value 119.7 ng/mL vs. 11.9 ng/mL, P=0.006, and median value 97.0 ng/mL vs. 11.9 ng/mL, P=0.015, respectively). Whereas, association analysis revealed that Lyso-GL3 was not significantly associated with urinary protein, mean arterial pressure and estimated glomerular filtration rate.ConclusionsThe using of LC-MS/MS to quantify plasma Lyso-GL showed significant differences in Lyso-GL3 concentrations between classical and atypical phenotypes, suggesting that plasma Lyso-GL3 may help with clinical phenotypes. However, Lyso-GL3 levels is found to be overlapped between genotypes. No significant linear correlation was found between Lyso-GL3 and renal clinical indicators, suggesting the urgent need in finding a more accurate tool to assess renal involvement and prognosis in patients with Fabry disease.

Aiming at the contradiction between the rapidity requirement of online calculation of transient stability preventive control and the computational complexity of time-domain equations, a stacking ensemable learning driven optimization method for power system transient stability preventive control was proposed. Firstly, a transient stability estimator based on a stacking ensemble deep belief network was constructed to replace the nonlinear differential algebraic equation solution process required for transient stability determination. Secondly, the trained transient stability estimator was used as a transient stability constraint discriminator, which was embedded in the iterative optimization process of the Aptenodytes Forsteri optimization algorithm. Finally, with the goal of minimizing the cost of preventive control, a stacking ensemble learning driven power system transient stability preventive control optimization algorithm was established. The algorithm realized the efficient judgment of transient stability constraints in preventive control, and improved the decision-making level of preventive control for power generation rescheduling. Based on the IEEE39 bus system, the proposed preventive control method was verified by experiments. The results show that the method has achieved good results in both evaluation accuracy and calculation efficiency.

Objective: This study aimed to investigate the varieties and contents of volatile components in fermented dough with flavor fermentation broth at different fermentation time. Methods: Headspace solid phase microextraction-gas chromatography (HS-SPME-GC-MS) was used to determine the volatile flavor substances in the dough of the flavor ferment at 12, 24, 36, 48 and 72 h. Also, sensory evaluation of the odor and determination of pH value, total acidity (TAA) and rheological properties of the dough were measured. Results: The strength of eight odors (frankincense, cheese, flower, fruit sweet, wine, malt, grass and sour) showed different performance, depending on the types and contents of the flavour substances produced during the different fermentation periods. The pH value of the dough gradually decreases with the time of fermentation, while TTA was the opposite. The tensile resistance, stretch ratio and tensile area of dough increased first but decreased with the extension of fermentation time, while the elongation of dough decreased first then increased. These results indicated that moderate fermentation (36 h) was beneficial to the formation and stability of the gluten network. A total of 92 volatile substances were detected in the dough with 5 fermentation times, including 22 alcohols, 27 esters, 12 aldehydes, 14 ketones, 10 alkanes, and 7 acids. A total of 27, 43, 38, 41 and 37 volatile flavor components were detected from the dough fermented for 12, 24, 36, 48 and 72 h, respectively. The contents of acids and esters increased first then decreased with the prolongation of fermentation time and reaching the highest at 48 h (47.31% and 20.96%, respectively). On the other hand, the contents of aldehydes, ketones and acids all gradually decreased. Conclusion: The volatile substances of different fermentation times were alcohols mainly, and the total flavor substances and the relative content of alcohols and esters reached the highest at 48 h, indicating that alcohols and esters might be the major contributors to the flavor of dough during fermentation.

As an important component of the new power system, electrochemical energy storage is crucial for addressing the challenge regarding high-proportion consumption of renewable energies and for promoting the coordinated operation of the source, grid, load, and storage sides. As a mainstream technology for energy storage and a core technology for the green and low-carbon transformation of existing energy structures, the electrochemical energy storage technology still needs to be further developed to adapt to the challenges brought about by the rapid growth of energy storage scale and the increasingly complex energy storage system. This study analyzes the demand for electrochemical energy storage from the power supply, grid, and user sides, and reviews the research progress of the electrochemical energy storage technology in terms of strategic layout, key materials, and structural design. Moreover, it clarifies the development trend of electrochemical energy storage technologies and identifies the problems such as inconsistency in product specifications, deficiency in detection platforms, and disconnection between theory and practice. Future efforts need to focus on the following directions: key materials with high performance, high safety, and low cost; optimization and evaluation of the structures of energy storage devices; multi-energy complementary and intelligent design of the energy storage systems; and commercial application modes of electrochemical energy storage. Furthermore, it is necessary to strengthen pilot demonstrations, formulate an industry standards system, improve the infrastructure, and cultivate talent teams for energy storage, thereby ensuring the high-quality development of the electrochemical energy storage technologies and industry.

Objective To preliminarily summarize the epidemiological and clinical characteristics of functional movement disorder (FMD) based on movement disorders clinic in China. Methods and Results A total of 593 patients with movement disorders newly diagnosed in movement disorders clinic of 22 clinical medical centers from August to September in 2023 were included, including 37 patients (6.24%) with FMD and 556 patients (93.76%) with organic movement disorder. Comparison of the epidemiological characteristics of the 2 groups, the proportions of corona virus disease (COVID⁃19) infection (χ2 = 4.217, P = 0.040) and psychopsychological symptoms (χ2 = 18.694, P = 0.000) in the FMD group were higher than those in the organic movement disorder group, while age (t = 3.757, P = 0.000), age of onset (t = 3.720, P = 0.000) and proportion of hypertension (χ2 = 4.736, P = 0.030) were lower than those in the organic movement disorder group. Comparison of the clinical characteristics of the 2 groups, the FMD group had higher proportions of tremor (χ2 = 3.955, P = 0.047) and myoclonus (Fisher′s exact probability: P = 0.011) than the organic movement disorder group, and the proportions of parkinsonism (χ2 = 8.491, P = 0.004) and gait disorder (χ2 = 5.028, P = 0.025) were lower than those in the organic movement disorder group. Conclusions The age and age of onset, as well as the proportions of COVID⁃19 infection, hypertension, psychopsychological symptoms, tremor, myoclonus, parkinsonism and gait disorder with FMD were different from those with organic movement disorder in China.

HZSM-5 molecular sieve is one of the commonly used catalysts for the alkylation of toluene with methanol to para-xylene (PX). This study introduces a one-step method to directly prepare microscale HZSM-5 catalysts with suitable pore structure and acidity. Specifically, this paper combined crystal seed regulation of the morphology of HZSM-5 and adjusted the Si/Al ratios of the precursor solution for HZSM-5 synthesis to regulate the acidic phase of the HZSM-5. It analyzed the phase composition, pore structure parameters, microstructure, and acidity of HZSM-5 molecular sieve through X-ray diffraction, N2 adsorption desorption, SEM, NH3 temperature programmed desorption, pyridine infrared spectroscopy, etc. This study investigated the catalytic performance of HZSM-5 in the alkylation of toluene with methanol to PX, and explored the effects of pore structure and acidity on the catalytic performance. Results indicate that in the hydrothermal crystallization method, the crystal seeds and aluminum content in the synthesis solution have a significant impact on the acidity and morphology structure of the HZSM-5 molecular sieve. The HZSM-5 (150)molecular sieve catalyst with 5μm grain size exhibits 60% PX selectivity and 11% toluene conversion rate in the evaluation reaction of toluene methanol alkylation due to its longer diffusion path and more suitable acidic sites. By fine-tuning the pores and acidic sites of HZSM-5 molecular sieve, the selectivity for PX has been effectively improved, providing new methods and approaches for the design of shape-selective catalysts.

Objective To investigate the effect of Huolong moxibustion in the treatment of children with phlegm-heat obstructing lung type of pneumonia. Methods Totally100 pediatric patients with phlegm-heat obstructing lung type of pneumonia were randomly divided into the control group and the observation group, with 50 cases in each group. The control group received routine basic treatment and nursing, while the observation group received Huolong moxibustion on the basis of routine treatment. The Traditional Chinese Medicine(TCM) symptom integral and length of hospital stay were compared between two groups. Results The TCM symptom integral scores were decreased in both groups after intervention, and TCM symptom integral scores in the observation group were lower than those in the control group(P＜0. 01). The length of hospital stay in the observation group was shorter than that in the control group(P＜0. 01). Conclusion Huolong moxibustion is potentially effective to relieve the clinical symptoms of phlegm-heat obstructing lung type of pneumonia in children and reduce the length of hospital stay. (目的 探讨火龙罐治疗小儿痰热闭肺型肺炎喘嗽的效果。方法 选取2023年1月—5月收治的痰热闭肺型肺炎喘嗽患儿100例, 随机分为对照组及观察组, 各50例。对照组给予常规基础治疗和护理, 观察组在对照组基础上增加火龙罐治疗。对比两组患儿中医症候积分及住院天数。结果 干预后, 两组中医症候积分较干预前下降, 且观察组中医症候积分改善优于对照组, 差异有统计学意义(P＜0. 01)。观察组平均住院天数较对照组缩短, 差异有统计学意义(P＜0. 01)。结论 火龙罐能有效改善痰热闭肺型肺炎喘嗽患儿临床症状, 缩短患儿住院天数。)

Objective: The study aimed to optimize the preparation process and investigate the quality of coix bran dietary fiber. Methods: The coix bran was used as raw material; the effects of solid-liquid ratio, the amount of amylase and alcalase on the extraction rate were analyzed by usingorthogonal experiments. The chemical composition and physicochemical properties of the dietary fiber obtained under the optimal preparation conditions was analyzed. Results: The optimal extraction parameters of dietary fiber were as follows: solid-liquid ratio was 1∶10 (g/mL), the amount of amylase and alcalase was 100 U/g, respectively, and the extraction rate was up to 84.39%. The insoluble dietary fiber (64.49%) was significantly (P ＜ 0.05) improved compared to coxi bran. And the soluble dietary fiber was 0%, the content of moisture, fat, starch, and protein was significantly decreased (P ＜ 0.05). When the temperature increased, swelling capacity, water holding capacity and oil holding capacity were improved. and was 3.12 mL/g, 4.02 g/g and 4.29 g/g, respectively. Conclusion: The method could be used as a reliable method to extract the coix bran dietary fiber.

Ga2O3 is an ultra-wide band semiconductor corresponding to the deep ultraviolet(UV) spectrum, which can be used to prepare solar-blind UV detectors. The solar-blind ultraviolet detectors are widely used in military and aerospace fields dueto strong anti-interference ability, high detection sensitivity and low background noise.The basic properties of Ga2O3 materials, including different crystal structures and their preparation, and the recent progress in solar-blind UV detectors based on Ga2O3 were introduced in this paper. Among them, metal-semiconductor-metal (MSM) structure of Ga2O3 devices are the most common, which are expected to achieve business application with commercial parameters. The Ga2O3-based heterostructure and Schottky detectors also exhibit excellent performance and self-supply characteristics. In addition, Ga2O3 devices based on thin film transistor become a potential solar-blind ultraviolet detector. They combine the working mechanism of MSM and transistor structure to obtain high light gain, which are suitable for weak signal detection.

The mechanical equipment in aerospace field that will not be reused after being used once is called disposable machinery. The failure of the flexible wheel is the most important factor affecting the performance of the disposable harmonic reducer. The change of the meshing stiffness can reflect the fault characteristics of the harmonic drive. In this study, the disposable and conventional harmonic gears are distinguished from the application environment and structure. Then, the crack initiation position of the flexible wheel in the disposable harmonic drive is analyzed. Besides, the damage model of the disposable harmonic flexible has been established based on the extended finite element method, and the crack propagation path of the flexible wheel rim is observed. Finally, the effect of cracks on the meshing stiffness of the disposable harmonic drive is discussed. The research conclusions of this study can provide theoretical support for fault diagnosis and life prediction of disposable harmonic gears.

M protein is a unique immunoglobulin type that often affects the laboratory results of certain blood tests. The M protein interference exits in the pre-analytical, analytical and post-analytical process, seriously affecting the accuracy of tests. For example, high concentrations of M protein in serum creatinine, uric acid, lipoprotein, total protein, bilirubin, blood glucose, phosphorus, hemoglobin, glycosylated albumin can cause false high or false low results. The abnormal presence of M protein in 25-OH vitamin D, thyroid-stimulating hormone, c-reactive protein, vancomycin, gentamicin and sodium valproate concentrations interferes with the actual detection results. Solutions to the above problems include diluting serum or removing protein before testing, using protein stabilizers during testing or optimizing reaction conditions. Furthermore, in clinical practice, hidden M protein can be uncovered, and effective detection prior to the onset of disease can open new avenues for disease management and prognosis.

The pathogenesis of cerebral small vessel disease (CSVD) is not yet clear, and there is no effective treatment method at present. MRI is an important imaging in diagnosing. In this paper, the imaging markers and scoring methods and criteria of CSVD are elaborated, and the diagnosing and grading methods of CSVD are discussed, to provide theoretical basis for diagnosis and treatment of the disease.

[Objective] The soil salinization characteristics under different land use types in extremely arid regions were analyzed in order to provide support for the sustainable efficient utilization of regional land resources. [Methods] We used GPS positioning technology to investigate and sample the irrigation water, irrigation drainage, and soil under four typical land use types in the area of Lower Tarm River in different seasons. We combined those data with indoor measurement results to determine the variation characteristics of salinity and salt ions in the irrigation area. [Results] The soil in the study area was alkaline, and the salt type was mainly sulfate-chloride. The salt content was between 2.44 and 118.05 g/kg, and the pH value was between 8.05 and 8.34. The overall changes of soil salt content and pH value under different land use types in each season followed the order of salt wasteland > saline-alkali grassland > cultivated land and forest land. Analysis of samples from different soil depths indicated surface accumulation of salinity in June and October, and no obvious pattern in March and December. There was an obvious surface accumulation of salt in salt wasteland and saline-alkali grassland in different seasons at different soil depths. Forest land had no obvious salt accumulation pattern in each season. Because of the geographical location of the reservoir, the groundwater level in the study area was shallow (1.4—3.51 m), the groundwater salinity was high (1.56—21.30 g/L), and the salt ions in irrigation water and groundwater were mainly Na+ and Cl-. [Conclusion] The soil salinization characteristics under different land use types in the study area were mainly affected by factors such as surface coverage, crop types, and irrigation events. The quality of groundwater and irrigation water was an important factor affecting the soil salt content and salt ion type in the study area. Certain measures should be taken to control the groundwater level and salt content so as to protect existing cultivated land and forest land. The irrigation and drainage water of high salt content from farmland should be discharged to the salt wasteland. In the future, relevant research should be conducted on the spatial configuration of agricultural land and salt wasteland, and the rational allocation of salt discharge land would be conducive to the desalination of farmland.

Lipid oxidation and degradation in instant meatballs stored for different periods of time (0, 1, 2, 3, 4 and 5 days) were investigated by measuring peroxide value (POV), thiobarbituric acid reactive substances (TBARS) value, carbonyl value and diene value. The changes in the fatty acid composition of instant meatballs during storage were analyzed by gas chromatography-mass spectrometry (GC-MS). The evolution of volatile flavor compounds was studied by headspace-solid phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) combined with calculation of odor activity value (OAV) and sensory evaluation. The results showed that eating quality attributes such as flavor and texture continued to decline during storage. Off-flavor appeared on the 4th day, and then quality deterioration was accelerated. The POV increased significantly during the early stage (0–3 days), but did not change significantly at the later stage (3–5 days). The TBARS value first increased slowly (0–4 days) and then dramatically (4–5 days). The carbonyl and diene values showed an upward trend during storage, indicating an increase in the degree of lipid oxidation. During storage, the proportion of unsaturated fatty acids (UFA) especially polyunsaturated fatty acids (PUFA) was significantly reduced. A total of 36 volatile flavor compounds with OAV ≥ 0.1 were detected. Among of them, the number (15) of aldehydes was highest. The OAVs of aldehydes and alcohols accounted for a high proportion (79.73%–87.58% and 10.15%–16.64%, respectively) of the total. Four and two classes of odor-active compounds were significantly correlated with lipid oxidation and sensory score for flavor, respectively.

Objective To summarize the characteristics of cognitive function and sleep structure in patients with idiopathic rapid eye movement sleep behavior disorder (iRBD) and to explore the correlation between them. Methods Total 73 patients with iRBD who visited Fujian Medical University Union Hospital from August 2018 to August 2021 were included, all of whom underwent neuropsychological tests and polysomnography monitoring. Pearson and partial correlation analyses were used to explore correlation between cognitive function and sleep structure parameters. Results 1) Neuropsychological tests: iRBD patients had lower Mini ⁃ Mental State Examination (MMSE; t = ⁃ 3.703, P = 0.000), Montreal Cognitive Assessment (MoCA; t = ⁃ 4.811, P = 0.000), Verbal Fluency Test (VFT)⁃number of correct words (t = ⁃ 2.171, P = 0.032) than control group. Trail Making Test (TMT)⁃A (t = 2.500, P = 0.014), TMT⁃B (t = 2.430, P = 0.016) and Stroop Color Word Test (SCWT)⁃A (t = 2.507, P = 0.013), SCWT⁃B (t = 15.042, P = 0.000), SCWT⁃ C (t = 27.228, P = 0.000) completion times were longer than control group. 2) Polysomnography monitoring: total sleep time (t = 2.699, P = 0.008), sleep efficiency (Z = ⁃ 2.103, P = 0.035), number of sleep stage transitions (t = 3.965, P = 0.000), proportion of non⁃rapid eye movement sleep stage 1 (N1 stage) to total sleep time (t = 2.887, P = 0.005), periodic limb movement of sleep index (PLMSI; t = ⁃ 2.917, P = 0.004), periodic limb movement⁃related arousal index (Z = ⁃ 2.291, P = 0.022), and total arousal index (Z = ⁃ 2.609, P = 0.009) were higher than those in control group, and the time of wakefulness after sleep was less than those in control group (t = ⁃ 2.230, P = 0.027). 3) Correlation between cognitive function and sleep structure parameters: MoCA score was negatively correlated with the percentage of N1 stage (r = ⁃ 0.184, P = 0.035), and positively correlated with the percentage of N2 stage (r = 0.173, P = 0.049); SCWT⁃B completion time was negatively correlated with the number of awakenings (r = ⁃ 0.186, P = 0.033); SCWT⁃C completion time was positively correlated with the number of sleep phase transitions (r = 0.212, P = 0.015) and the percentage of N1 stage (r = 0.181, P = 0.039); VFT⁃number of correct words was negatively correlated with the periodic limb movement of wake index (PLMWI; r = ⁃ 0.216, P = 0.018); the number of correct China⁃Rey Auditory Verbal Learning Test (C⁃RAVLT) immediate recall was positively correlated with the rapid eye movement (REM) sleep latency (r = 0.183, P = 0.045); the number of correct C⁃RAVLT delay recall was negatively correlated with the PLMWI (r = ⁃ 0.196, P = 0.032) and PLMSI (r = ⁃ 0.180, P = 0.049); the Clock Drawing Test was positively correlated with sleep latency (r = 0.192, P = 0.035) and REM sleep latency (r = 0.199, P = 0.029), and negatively correlated with the percentage of REM sleep (r = ⁃ 0.189, P = 0.038). The Beck Depression Inventory (BDI) score was positively correlated with total sleep time (r = 0.347, P = 0.000), sleep efficiency (r = 0.319, P = 0.000) and the percentage of REM sleep (r = 0.204, P = 0.026), and negatively correlated with the time of wakefulness after sleep (r = ⁃ 0.280, P = 0.002) and the percentage of N1 stage (r = ⁃ 0.299, P = 0.001). Conclusions Patients with iRBD have cognitive dysfunction mainly manifested by decreased attention, executive function and language function, and sleep structural disorders may affect the cognitive function of such patients.

Objective To investigate the role and mechanism of fibrinogen-like protein 2 (Fgl2) in acute kidney injury induced by rhabdomyolysis (RM-AKI). Methods Wild-type mice (WT) and Fgl2 gene knockout mice (Fgl2 KO) with the same background, were randomly divided into 4 groups respectively, that is WT+saline, WT+Gly, Fgl2 KO+saline, Fgl2 KO+Gly (n=5). The mice of the RM-AKI group were given 50% glycerol (10 μL/g) and those of the control groups were given same amount of normal saline into the hind leg by intramuscular injection. In 48 h later, the serum samples were collected to detect the levels of Scr and BUN. HE staining was employed to assess and score the severity of renal injury. qRT-PCR was used to detect the mRNA levels of Fgl2, IL-6, MCP-1, TNF-α, IL-1β and IL-10. The expression of Fgl2 and F4/80 was observed with immunohistochemical staining (IHC). TUNEL assay and Western blotting were applied to measure cell apoptosis and expression of apoptosis-related proteins, respectively. Results Fgl2 expression in renal tissue was significantly elevated in glycerol-treated WT mice compared with saline-treated WT mice. When compared with WT mice, Fgl2 deficiency significantly alleviated renal dysfunction and renal histopathological injury, with statistically lower renal injury score (P < 0.05). Moreover, the expression of pro-inflammatory factors, IL-6, MCP-1, TNF-α and IL-1β in renal tissues was decreased, while that of anti-inflammatory factor IL-10 was increased (P < 0.05). The infiltration of macrophages and apoptosis of renal cells were reduced in the Fgl2 KO mice than the WT mice. The expression of apoptosis-related proteins, Bax, cleaved Caspase-3, and cleaved Caspase-9 was reduced, while that of Bcl2 showed no significant difference. Conclusion Knockout of Fgl2 inhibits inflammatory response and reduces apoptosis in renal cells, and exerts a protective effects on RM-AKI mice.

Aimed at the problem of insufficient heat resistance and poor ablation resistance of phenolic resin (RF), and the compatibility of SiO2 particles with phenolic resin, the nano-scale SiO2/RF hybrid aerogel was prepared by the co-gel method. The interpenetrated gel network was constructed to increase the compatibility of two phases. The microstructure, chemical structure and thermophysical properties of the SiO2/RF hybrid aerogel were explored. The silica-modified phenolic/carbon fiber composite material was prepared. The ablation properties of the composite material before and after modification were compared. The results show that the hybrid aerogel possesses a bi-continuous structure of skeleton and pores. The density of the hybrid aerogel fluctuates in the range of 0.145-0.160 g/cm3. As the silica content increases, the residual carbon ratio of the hybrid aerogel increases, and the Si—O bond absorption vibration peak is more obvious, but XRD has no diffraction peak. Considering the pore size distribution and thermal physical properties, the silica-modified phenolic/carbon fiber composite material was prepared with the best performance hybrid aerogel. The mass ablation rate of the modified composite material is 0.046 g/s, and the linear ablation rate is 0.074 mm/s. Compared with the unmodified composite material, the mass ablation rate is reduced by 20.7%, the linear ablation rate is reduced by 21.3%. The oxidation resistance and the residual carbon ratio of the modified material are significantly improved.

Small integral membrane protein 1(SMIM1) gene encodes Vel blood group antigen, and homozygous deletion of 17 bases pairs in its exon 3 leads to Vel negative phenotype. As a rare phenotype, accurate identification and prevention of transfusion reaction for Vel negative phenotype is particularly important. In addition to serving as a Vel blood group antigen, recent bioinformatics analysis suggests that SMIM1 protein may be a new tumor biomarker involved in the occurrence and development of numerous tumors. Due to the similarity in structure between SMIM1 protein and glycoprotein, and its phosphorylation in red blood cells infected with Plasmodium falciparum, it is speculated that SMIM1 protein may be involved in the development of malaria. Therefore, this article provides a review of the related research on SMIM1 and its coding protein in Vel blood type, tumor and plasmodium infection.

Objective To investigate the effect of quality control circle (QCC)activity on standard prevention of venous thromboembolism (VTE)among hospitalized pregnant women. Methods Totally 88 hospitalized pregnant women were recruited in this study, in which 44 cases were hospitalized before implementation of QCC activity and another 44 cases were hospitalized after implementation of QCC activity. The rate of standard VTE prevention, VTE awareness, compliance rate of function exercise, rate of sufficient daily intake of water and satisfaction with nursing service were measures before and after implementation of QCC activity. Results The rate of standard VTE prevention increased from 54. 55%(24/44)before implementation of QCC activity to 81. 82%(36/44)after implementation of QCC activity. Higher score of VTE knowledge assessment, rate of function exercise and sufficient daily intake of water were observed after implementation of QCC activity compared with those before implementation of QCC activity(P＜0. 01). Nursing satisfaction rate was increased significantly after implementation of QCC activity(P＜0. 05). Conclusion The QCC activity is potentially effective to improve hospitalized pregnant women’s awareness and behavior of standard VTE prevention, therefore reducing the risk of VTE during pregnancy. (目的 探讨品管圈活动在提高住院孕产妇静脉血栓栓塞(VTE)规范预防率中的应用效果。方法 选取 2021年1月—6月妇产科收治的88位孕产妇为研究对象, 其中实施品管圈活动前收治44例, 活动开展后收治44例。比较活动前和活动后孕产妇VTE规范预防率、VTE相关知识掌握情况、功能锻炼执行率、每日充足饮水达标率及护理满意度。结果 住院孕产妇VTE规范预防率由活动前的54. 55%(24/44)提高至活动后的81. 82%(36/44)。品管圈活动后, 孕产妇VTE知识掌握情况、功能锻炼执行率、每日充足饮水达标率均高于活动前(P＜0. 01); 住院孕产妇对护理满意度高于活动前(P＜0. 05)。结论 对住院孕产妇开展品管圈活动, 可提升其对VTE相关知识的认知程度, 提高VTE规范预防率, 对降低VTE 发生风险具有积极意义。)

Functional movement disorder (FMD) is a common conversion disorder, and those who involve the face are called functional facial disorders. It seriously affects patients' social contact and work. Most clinicians have insufficient understanding of functional facial disorders, resulting in delayed diagnosis and treatment. This paper reviews the clinical features, electrophysiology, diagnosis and differential diagnosis, and treatment of functional facial disorders to improve the level of diagnosis and treatment.

Objective: This study aimed to improve the safety supervision of cadmium in milk samples. Methods: A liquid-liquid microextraction method based on hydrophobic deep eutectic solvent （DES） was developed for the determination of cadmium in milk samples by graphite furnace atomic absorption spectrometry. The types of deep eutectic solvents were selected for high extraction efficiencies and it was found that DES composed of thymol and lactic acid at the molar ratio of 1∶1 provided higher extraction efficiency. In addition, several important experimental conditions including the volume of DES, sample pH value, the pretreatment methods of samples were optimized. Results: Under the optimized conditions, Cd had good linearity in the range of 0~3.0 ng/mL, and the correlation coefficient was 0.998. The detection limit was 0.02 μg/kg. The recoveries ranged from 94.7% to 113.0% with relative standard deviations （RSD） of 0.38%~7.00%. Conclusion: With the advantages of simplicity, rapidness, exactness and low detection limit, this method could be used for the detection of cadmium in milk samples.

Objective Trigeminal neuralgia is the most common maxillofacial pain syndrome, and its etiology has not been fully understood. In this paper, we focus on the role and expression of G protein-gated inwardly rectifying potassium channel (GIRK) protein in trigeminal neuralgia to provide a new direction for the treatment of trigeminal neuralgia. Methods An animal model of trigeminal neuralgia in mice was established by infraorbital nerve transection surgery, and its mechanical abnormal pain was measured by using Von Frey; the number of facial scratches was recorded to measure its spontaneous pain; the expression of GIRK protein in trigeminal ganglion was detected by Western Blot. Results Our research discovered that after trigeminal nerve injury in mice, both mechanical abnormal pain and spontaneous pain were significantly enhanced at 3-21 days postoperatively compared to controls, while both GIRK1-3 protein levels were downregulated in the trigeminal ganglion. Conclusion Trigeminal neuralgia model in mice was successfully established， and suggesting that GIRK may play a significant role in trigeminal neuralgia after nerve injury.

Liaoning is one of the active regions for tornadoes in China, and the generation of a considerable number of tornadoes is associated with extratropical cyclones. In order to improve the understanding of environmental background and physical parameter characteristics, 42 extratropical cyclone tornadoes in Liaoning from 1979 to 2020 are statistically analyzed. The study is based on the reanalysis data of ERA5(ECMWF Reanalysis V5), combining with records of China Meteorological Disaster Classic and China Meteorological Disaster Yearbook. Results show that extratropical cyclone tornadoes are mainly distributed in the central and western Liaohe Plain and along the coast of the Bohai Bay. Significant tornadoes(EF2 and above) account for 28.6% of all extratropical cyclone tornadoes.Extratropical cyclone tornadoes occur mostly in the southwest and southeast quadrants of extratropical cyclones, corresponding to the warm area before the cold front. The high-value area of the storm relative helicity and convective available potential energy(CAPE) appear in the southwest-southeast quadrant of the extratropical cyclones, with a belt-like distribution. Extratropical cyclone tornadoes are mainly distributed within 1° of latitude in the northwest of the large-value area of storm relative helicity and the strong gradient area at the top of the large-value area of CAPE. The strong tornado parameter(STP) center is located near the -2° of longitude distance and -5° of latitude distance from the center of tornadic extratropical cyclones, and the maximum value is above 0.7. The large value area of STP corresponds to the high-incidence area of EF2 and above extratropical cyclone tornadoes. The cold front and dry line in the surface are the key trigger of extratropical cyclone tornadoes, and the induced tornadoes are mainly distributed near the warm ridge of temperature field and the top of the tongue of humidity field. Comparing the vertical distribution of humidity near the center of tornadic extratropical cyclones and the tail of the cold front, the strong cold pool caused by the strong high-level dry intrusion can generate excessively strong downdraft, which may be an unfavorable factor for tornado formation. Extratropical cyclone tornadoes are mostly distributed in the distributary area of the left air flow of the upper-level jet, corresponding to the strong upper-level divergence area. The large value area of 0-3 km vertical temperature lapse rate has a good correspondence with the high incidence area of weak tornadoes near the center of extratropical cyclones.

General practitioners are the gatekeepers when it comes to residents' healthcare. This means that the quality and quantity of their services will play a key role in improving basic medical services. The most appropriate incentive mechanism for general practitioners can improve their ability, minimize the desire to leave, and promote the stability of teams. Currently, China lacks a comprehensive and flawless practice system, and the exploration of incentives for general practitioners is still in its infancy, and there is a lack of a complete and effective practice system. This study highlights the critical importance of incentives and incentive mechanisms. It summarizes the experience of the United Kingdom, Australia, the United States, Shenzhen, Xiamen, and Shanghai with relatively mature incentive mechanisms in China and abroad. Additionally, to summarise the current problems that still exist in the incentive mechanism for general practitioners in China (single incentive approach, lack of career attraction due to the lack of obvious incentive effect, poor science of incentives leads to uneven allocation across regions, different incentive policies across regions and slow implementation) . As part of this strategy, together with the strategy of "Healthy China", innovative ideas are put forward in terms of enrolling general practice in national key clinical specialty, establishing authoritative professional academic institutions and regulatory institutions, developing a unified performance appraisal system, improving the diversified material and non-material incentive mechanisms, improving the competition and punishment mechanisms by means of information, and forming an efficient general practitioner service teams. In order to provide new research methods for investigating the incentive system of primary general practitioners in China.

In order to improve the economy of microgrid construction and operation, and meet the personalized demand for reliability of various types of microgrids, an integrated flexible planning method for microgrid is proposed to adapt to multiple scenarios. Based on the judgment results of type and composition, a two-layer model including capacity planning and grid planning is established. The lower-level capacity planning takes the minimum operation cost of micro-source construction as the goal and adopts the mixed integer optimization algorithm to solve it. The upper layer grid planning takes the minimum cost of network construction and operation as the goal, and uses the particle swarm optimization algorithm to solve it. A closed-loop integrated planning system consisting of judgment, capacity planning, and grid planning is formed. The system can meet the personalized reliability requirements of different microgrids by flexibly adjusting the independent operation duration constraints and the load outage attention parameters. The example shows that the proposed method can effectively reduce the construction and operation cost of microgrid, and has a good adaptability to different types and components and different reliability requirements.

Objective: To investigate the effect of preoperative radiotherapy in the patients with primary retroperitoneal soft tissue sarcoma difficult to resect or unresectable and recognize the results of radiotherapy associated with resection and the effect of treatment on prognosis. Methods: It was analyzed retrospectively with 44 cases of primary retroperitoneal soft tissue sarcoma difficult to resect or unresectable in Department of Radiation Oncology, Zhongshan Hospital from May 2017 to February 2022. Intensity modulated radiation therapy (IMRT) and helical tomotherapy (TOMO) were used to treat the patients, and the effects of conversion to resection treatment for patients with the prognosis and complications were analyzed. Results: A total of 44 cases received radiotherapy including 30 cases with IMRT and 14 cases with TOMO. The adverse events of radiotherapy were grade 1 to 2. After preoperative radiotherapy, 12 cases achieved partial response, 26 cases remained in stable condition and 6 cases progressed. There were 26 cases treated by surgical excision after radiotherapy with the rate of conversion to resection 59.1% (26/44). The 1- and 3-year survival rates of the cases were 93% and 72% respectively. Conclusions: The preoperative radiotherapy could have improve the conversion rates of resection for the patients with primary retroperitoneal soft tissue sarcoma difficult to resect or unresectable. The better postoperative survival was gotten with mild adverse events.

The gut microbiota is a powerful 'organ' composed of prokaryotic organisms (bacteria), eukaryotic microorganisms (including fungi and protozoa) and viruses, which plays a crucial role in the nutrition metabolism, maintenance of the integrity of intestinal mucosal barrier, and immune regulation of the body. Researches have shown that intestinal microecology is related to the pathogenesis of many diseases, such as neuropsychiatric diseases, autoimmune diseases, cancer and chronic metabolic diseases. Recent studies have found that gut microbiota can regulate hemodynamics through the oxidation of trimethylamine and short chain fatty acids. At the same time, gut microbiota disorder and translocation can activate the body's inflammatory response, affecting the stability of the body's hemodynamics.In this article, we summarize the relationship between gut microbiota and hemodymamics, in order to provide reference for further research.

Based on the theory of spatial production, the current study adopts a qualitative approach to examine the case of W Village on the southeast coast of China to explore the development of families presently living in rural areas, through the overlapping processes of "spatial transformation" and "rural families". The present study found that to make a living, families in rural areas use agricultural products as the main resources to travel between the city and rural regions. This way of living forms a rural-urban dual physical space mosaic of "living in the countryside-working in the city." These families imitate the lifestyle of urban families (e.g., education and health). This presents a spatial practice picture of rural families commuting between urban and rural regions. Different from the rural family modes of "no farming but still living in the village" and "leaving the village and no farming", the current spatial practice of rural families is a new development mode of "between urban and rural" that resembles "leaving the village but depending on farming", and considers the countryside as the settlement place and the home village as the resource. Urban and rural families share the goal of common prosperity, regardless of the material and spirit in the representation of space. However, with a gap between urban and rural families, rural families are found to lack confidence in agricultural production and rural society. It is the representational space about the decline of agricultural production and social relations in ethics and "adaption". Therefore, for comprehensively promoting rural revitalization and common prosperity, the synergy of social policies, narrowing the gap between the urban and rural systems of welfare and security, rebuilding community space for the self-confident family development of the village, reconstructing the internal development space of the individual autonomous family, and responding to the internal needs of family development should be emphasized. Thus, rural-urban dual physical space and the unitary social service space should be constructed. The current study expands the depth and scope of the analysis of rural family research and advances research in family development-related fields. Its contributions are as follows: First, through an in-depth observation, a relatively detailed and comprehensive picture of urban-rural shuttle, urban-rural mosaic, and urban imitation, the perspective of spatial production is presented for the spatial development of families living in rural areas and the associated generative mechanism. Second, based on the Chinese social context, this study analyzes the development of families rooted in rural China from the perspective of spatial production. It expands the research limits of spatial production from the perspectives of social change, social governance, community research, social action, etc. In the age of mobility, space is a perspective that cannot be ignored while examining family. The new spatial relationship between urban and rural in the process of Chinese modernization is an interesting research perspective, which can promote the localization of spatial production theory in China.

Given the huge calculation burden and long-time consumption of the existing point-to-point feasible region search method， a new analytical modeling method of feasible regions for power generation is proposed in this paper. Firstly， the construction process of feasible regions for power generation under cross-section safety constraints is introduced， and the boundary characteristics of the feasible regions are analyzed. Secondly， it is deduced mathematically that there is a linear relationship between the output of sensitive generators and the system load at the boundary of the feasible region. An analytical modeling method for the feasible region boundary is proposed based on the linear relationship. Afterwards， when the output power of balanced generators exceeds their limits， a piecewise linear modeling method for the feasible region boundary is introduced. Finally， with a provincial power grid as an example， the feasible region boundary under different cross-section safety constraints is calculated， and the effectiveness of the proposed method is verified through comparison with the existing point-by-point search method.

A quasi-dynamic model of heat networks is established for optimal energy storage configuration in an electric-thermal system. Based on this model， the “virtual energy storage” characteristics of heat networks can be used as a schedulable resource in energy storage capacity planning. Then， a two-stage robust optimization algorithm is used to deal with the uncertainty of renewable energy. The nested C&CG （column-and-constraint generation） algorithm is used to solve the state variable 0-1 of energy storage， and the global optimal solution is thus obtained. Considering the increase in constraints and variables brought about by the quasi-dynamic model of heat networks and the low efficiency of the algorithm， this paper takes the heat source temperature as an intermediate variable to decouple the power system and the thermal system. Then， it conducts robust optimization only for the power system， which significantly reduces the complexity of the model. This paper also introduces conditional value-at-risk （CVaR） to optimize the uncertain interval of new energy output to strike a balance between economy and robustness. An example analysis results show that the proposed method is superior in reducing physical energy storage configuration capacity and system operation cost.

【Background and objective】 Hainan province is a pepper base in China and its traditional production uses furrow fertigation, resulting in not only water and fertilizer waste but also nutrient leaching and contaminating the environment. The purpose of this paper is to explore suitable irrigation and fertilization methods to improve water and fertilizer use efficiency without compromising pepper yield. 【Method】 The experiment was conducted in field plots with four different irrigation - fertilization combinations: furrow irrigation without fertilization (CK), furrow irrigation with fertilization of 470.70 kg/hm2 of N + 511.22 kg/hm2 of P2O5 + 526.39 kg/hm2 of K2O (F1), furrow irrigation with fertilization of 376.55 kg/hm2 of N + 314.83 kg/hm2 of P2O5 + 526.39 kg/hm2 of K2O (F2), mulched micro-spray with fertilization of 376.55 kg/hm2 of N + 314.83 kg/hm2 of P2O5 + 526.39 kg/hm2 of K2O. In each treatment, we measured yield and fruit quality, photosynthesis, root growth, nutrient accumulation and nutrient distribution in soil, as well as water and fertilizer use efficiency. 【Result】 When N and P were initially high in the soil, F1 and F2 did not show significant difference in their yield, fruit quality, root growth, photosynthesis and accumulation of N, P and K in the plant. In contrast, F3 increased the yield, transpiration, root length, root surface area, root volume, accumulation of N, P and K by 8.03%, 16.91%, 60.69%, 43.00%, 40.37%, 19.30%, 14.19% and 14.61%, respectively, compared to F2; it also showed significant differences in fruit quality, net photosynthetic rate, stomatal conductance and intercellular CO2 concentration from F2. Compared with F1, F2 reduced the contents of total N, ammonium N, total P and available P in the 0~20 cm and 20~40 cm of soil after the harvest, reduced the apparent surplus N and P, and improved the partial productivity of N and P fertilizers. Compared with F2, F3 increased the contents of total N, nitrate N, ammonium N, total P and available P in the 0~20 cm of soil, reduced the apparent surplus N and P, and improved the production rate of the irrigation water. 【Conclusion】 For all treatments we compared, mulched micro-spray irrigation with reduced fertilization (F3) improved yield, water and fertilizer use efficiency of the pepper.

ObjectiveTo evaluate the food exposure risk of ochratoxin A （OTA） in Zhejiang Province， China.MethodsA representative of 518 samples （five food categories including 24 kinds of food stuffs） were examined from 2018 to 2019 in order to evaluate the occurrence of OTA in Zhejiang Province. Food consumption data was collected from the Food Consumption Survey of Zhejiang Province between 2015 and 2016.ResultsOTA was only detected in grains and related products， but was not detected in fruits， tea， puffed foods and infant cereals. The higher incidence was found in oats and related products （16.1%，5/31）； the OTA levels of positive samples ranged from 0.53 to 4.00 μg/kg； and the maxium value of 4.00 μg/kg was found in oats and related products； no samples exceeded the limit set by China （5 μg/kg）. Exposure assessment showed that in most consumption scenarios， OTA probable daily intake for eating grains and related products were 0.004-7.360 ng/kg BW， less than OTA safety exposure value of 14 ng/kg BW； the highest OTA exposure value was 19.627 ng/kg BW and represents 140.19% of the safe intake. The 1-6 years old age group had the highest daily intake of 0.014-34.644 ng/kg BW， representing 0.10%-247.46% of the safe intake. The main food source of OTA was rice with a contribution rate of 87.22%-98.32% among different scenarios.ConclusionsThe OTA intakes through grains and related products consumption by Zhejiang population do not raise safety concerns except a few high intake groups， especially young consumers.

【Objective】 In order to explore the management mode of water, fertilizer and salt under mulched saline water drip irrigation in southern Xinjiang. 【Method】 Freshwater and saline water were mixed at volumetric ratio of 1∶0, 4∶1 and 2∶3, respectively, for irrigation. For each irrigation treatment, there were three nitrogen applications: 400 kg/hm2 (over applied), 300 kg/hm2 (used by local farmers) and 200 kg/hm2. Freshwater irrigation combined with 300 kg/hm2 of N fertilization was taken as the control. During the experiment, we measured the uptake of ions and nutrients by the crop, as well as dry matter distribution and accumulation 【Result】 With the increase in irrigation water salinity, the amounts of ions (Na+, Cl- and Ca2+) taken up by the cotton increased, especially Na+ and Cl- . Most of these ions were found in leaves, followed by stems. Increasing irrigation water salinity reduced the uptake of N, P and K, while increasing nitrogen fertilization promoted dry matter accumulation in the roots and uptake of nutrients and ions, thereby boosting plant growth. It was found that increasing nitrogen fertilization enhanced absorption of Na+ and Cl- by the cotton. A moderate accumulation of Na+ and Cl- in stems and leaves associated with 4∶1 of freshwater and saline water suppressed vegetative growth and distributed more nutrients to the buds and bolls, thereby leading to a yield increase. However, over-adsorption of Na+ and Cl- by the crop due to the increase in portion of the saline water could inhibit nutrient uptake and its translocation to the reproductive organs, leading to a yield reduction. Compared with CK, mixing freshwater and saline water at 4∶1 ratio combined with high nitrogen fertilization increased dry matter accumulation by 1.5% without compromising yield (6 829.80 kg/hm2). 【Conclusion】 Mixing freshwater and saline water at 4∶1 combined with an increase in nitrogen fertilization can promote uptake of ions and nutrients by the crop, as well as translation of dry matter to reproductive organs, without compromising cotton yield. It can thus be used as a guidance for cotton production in southern Xinjiang, China.

In order to study the deformation-failure law of deep buried weakly cemented soft rock roadway and determine reasonable control countermeasures, taking the south main return laneway of Yuwu Coal Mine as an example, the strain softening model parameters were adjusted to reflect the argillization and volume expansion characteristics of weakly cemented soft rock. The stress, deformation and failure evolution of surrounding rock during roadway excavation were numerically analyzed. On this basis, the combined support control countermeasure of “bolt-shotcrete + grouting + inverted arch” was obtained. The results show that the radial displacement of roof, floor and two sides of surrounding rock in deep buried weakly cemented soft rock roadway will reach 734.2 mm, 490.3 mm and 549.6 mm after tunneling 24 m forward. At the same time, the depth of loose zone will increase to 5.6 m, 2.8 m and 3.0 m respectively, while the depth of plastic zone will expand to 9.5 m, 8.8 m and 13.7 m respectively. After adopting the combined support of “bolt-shotcrete + grouting + inverted arch”, the radial displacement and plastic zone depth of roadway will be reduced by 91%-94% and 71%-74%, respectively, and the time to reach stability is greatly shortened.

Secondary lymphedema (SL) seriously affects the physiological and psychosocial status of cancer patients. The establishment of appropriate animal models for basic research is crucial to study the pathogenesis and treatment of SL. At present, there are many animal models of SL, but the lack of uniformity results in slow progress of mechanism research. Based on the research progress of SL animal models, this paper analyzes the types of experimental animals and the intervention methods of modeling in SL research. The analysis results showed that rodents (especially rats) are ideal experimental animals, and a stable and durable chronic SL model can be prepared by combining surgery with two times of preoperative and postoperative radiation, which has been confirmed in daily scientific research work.

Previous studies show that two typhoons with similar landing area and similar moving tracks may have significant differences in precipitation intensity, which are caused by different structure and characteristics of the cloud systems. Based on FY-2H, Aqua, CALIPSO(Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation) and GPM(Global Precipitation Measurement) satellite data, the horizontal and vertical structural characteristics of the cloud system, 3-dimensional structure and characteristics of Typhoon Lekima(1909) and Typhoon Yagi(1814), which landed along the Wenling coast of Zhejiang Province, are discussed.The visibility of typhoon eye area and the helicity of typhoon cloud system in TBB images are important indicators of typhoon development. The precipitation near the typhoon center is the largest, and the spatial distribution of typhoon precipitation is asymmetrical. For the typhoons with similar paths, strong typhoon induces circular strong precipitation center, while weak typhoon is along with belt-type strong precipitation center. In the mature stage of typhoon development, the maximum cloud top height is near the typhoon eye. When the cloud top height on the north side of the spiral rain belt area is lower than that on the south side, the typhoon develops strongly. When the cloud top height on the south side of the spiral rain belt area is lower than that the the north side, the typhoon is relatively weak. Before typhoon landing, the proportion of single layer cloud is higher when the typhoon is stronger, and the atmosphere is optically thicker. Typhoon clouds are mainly deep convective clouds and cirrus clouds consisting of non-directional ice. The height of cloud base and thickness in spiral rainband are related to the development of typhoon. Before typhoon landing, the area of high and low brightness temperature under the same channel, the precipitation type of typhoon, the length and number of convective columns in the 3-dimensional precipitation structure, and the precipitation rate in vertical direction can all indicate the development of typhoon. Regardless the typhoon strength, the total amount of ice water particles is roughly the same, and the difference in intensity is reflected in the areas of the high and low brightness temperature under the same channel. The spiral rain belt of a strong typhoon is dominated by stratiform precipitation, while a weak typhoon is dominated by convective precipitation. The number and length of convective columns of a strong typhoon are far greater than those of a weak typhoon.

In order to study the reasonable support technology of weakly cemented soft rock roadway under water spraying condition, the 12307 return airway of Selian No.2 mine was taken as the background. The stress, deformation and plastic zone change characteristics of roadway surrounding under the condition of “anchor belt net and cable beam” support were studied by considering the strength and volume change of weakly cemented sandy mudstone with water spraying time, and the several improvement measures for support plan were proposed. The results of the study show that: under the condition of “anchor belt net and cable beam”, the surrounding rock radial displacement of weakly cemented soft rock roadway will continue to increase exponentially under the influence of water spraying. Finally, its moving distance from roof to floor and two sides will reach 750 mm and 200 mm respectively. After the improved support of “increasing the length of anchor bar, changing metal mesh to reinforced mesh sprayed concrete, and strengthening the support of roadway roof and two sides with anchor ropes”, the surrounding rock maximum radial displacement of weakly cemented soft rock roadway is only 29.0 mm, and the failure plastic zone depth is basically stable at 3.0 m, which well guarantees the safety of the roadway.

This paper takes 10 times of obvious long-term continuous rise of water level in Bengbu Monitoring Center well from 2017 to 2020 as the research object. Multiple regression analysis was conducted on influencing factors of rainfall in different periods before and after 10 times of water level rise. Multiple regression equations were established. The results show that: the 10 times of obvious long-term sustained rise of water level from 2017 to 2020 are mainly related to the influence of rainfall during the rise. It has no significant relationship with other rainfall parameters. Combined with the analysis results of earthquake catalogs above ML2.5 in Bengbu area, the law of water level rising continuously for a long time corresponds to the law of earthquake frequency, which shows that rainfall and regional stress field change jointly affect the water level change of Bengbu Monitoring Center.

Glycidyl methacrylate (GMA) was grafted onto polypropylene (PP) nonwovens by electron-beam-induced pre-irradiation grafting, and ammonium phosphomolybdate (AMP) was physically loaded on the grafted polymer to prepare a composite material called PP-g-GMA@AMP. The loading rate of AMP was 5.72%, and the grafting rate of GMA was 32.41%. The maximum adsorption efficiency of Cs(I) by PP-g-GMA@AMP was 97.23% at pH=6. The adsorption kinetic behavior was in accordance with pseudo-second-order kinetic equation. The experimental results showed that the adsorption process using PP-g-GMA@AMP conforms to Langmuir adsorption model and the theoretical maximum adsorption capacity was 2.59 mg/g. PP-g-GMA@AMP showed good reusability and the adsorption capacity was reduced by only 9.91% after three repeated uses. PP-g-GMA@AMP showed excellent selective adsorption ability for Cs(I) in the presence of Na(I), Mg(II), and Ca(II). The distribution coefficient of Cs(I) on AMP was 120.45, while those of Na(I), Mg(II), and Ca(II) were 2.71, 1.23, and 1.84, respectively. According to the difference in partition coefficients, Cs(I) was separated from Na(I), Mg(II), and Ca(II) by dynamic column chromatography using a 0.5 mol/L NH4Cl eluent solution, and the Cs(I) effluent liquid was concentrated to one-fifth the volume of the injection solution.

BackgroundThe research of low temperature detergent is of great significance for the operating and decommissioning of nuclear facilities at low temperature environment.PurposeThis study aims to explore the fluid characteristics and decontamination characteristics of polyvinyl butyral detergent at low temperature.MethodsThe low temperature detergent was prepared by using polyvinyl butyral as solute, ethanol and ethyl acetate as solvent and citric acid as decontamination additives. The viscosity, fluidity, sprayability and wettability of the detergent on the surface of different materials were measured in experiment. Four simulated U(VI) contaminated plate samples were prepared by the dyeing of the uranyl nitrate solution on the base of glass, stainless steel, ceramic tile and alkyd paint, respectively. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) were used to characterize the decontamination films on the surface of these four samples, and study the decontamination mechanism. Finally, the decontamination characteristics of the detergent for the simulated U(VI) pollution on surface of different materials were studied at low temperature, and the effects of temperature, detergent dosage and surface roughness on decontamination rate were discussed.ResultsExperimental results show that the decontamination rates of the detergent for the simulated U(VI) pollution on the surface of glass, stainless steel, ceramic tile and alkyd paint board are above 97.3%, 93.6%, 95.5% and 88.9%, respectively, in the temperature range of -15~10 ℃, that the temperature and the detergent dosage have little effect on the decontamination rate and that the decontamination film formed by the detergent have good strippability.ConclusionsThe detergent has a good application potential at the decontamination of radioactive pollution in low temperature environment.