Subjects: Other Disciplines submitted time 2024-05-10
Abstract： The radionuclide air kerma rate constant Γa.Γa is a very important data in dose evaluation and shielding calculation, which requires the conversion coefficient of flux to air Kerma Ka/Φ and the information of nuclide decay photon. In 2020, the International Commission on Radiation and Measurements (ICRU) released Report 95 (Operational Quantities for External Radiation Exposure), which recommended a new Ka/Φ.[Purpose]: In order to verify the change in nuclide values after the basic data was updated.[Methods]: Based on the theory and Monte Carlo method, the air specific kinetic energy rate constants of 39 kinds of nuclides commonly used in medicine, industry and agriculture were calculated, and different interpolation methods and threshold selection were compared and analyzed.[Results and conclusions]: The cubic splines, logarithmic-logarithmic Lagrangian interpolation, and linear-logarithmic Lagrangian interpolation interpolation methods have little influence on the calculation of Γa. The calculation of Γa threshold selection pairs is very important, and the calculation of some nuclides with different thresholds is quite different, and the recommended nuclear medicine dose estimation is recommended to use a threshold of 10 keV, and the threshold of other cases is 20 keV. The difference between theoretical calculation and MCNP simulation calculation is small, and both can be used for constants calculation
Subjects: Other Disciplines submitted time 2024-05-07
Abstract： Complementary Metal Oxide Semiconductor (CMOS) image sensor is gradually replacing CCD image sensor with small size, light weight, low power consumption, high integration and other characteristics. In the space radiation environment, it has protons, heavy particles, gamma rays, A large number of high-energy particles such as electrons, CMOS image sensors will be subject to the radiation effect of heavy ions and have permanent damage to them.This paper focuses on the mechanism of permanent damage of CMV4000 under heavy ion irradiation. CMV4000 images after heavy ion irradiation have obvious hot pixels (the dark current peak is several times higher than the dark current peak of other pixels usually shows that the gray value of the pixel is several times higher than that of other normal pixels), and the hot pixels will not disappear in the next frame image and subsequent images, so the hot pixels are not temporary.This paper also considers the comparison of image parameters of CMOS image sensor before and after irradiation and reveals the degradation mechanism of each parameter.
Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-04-25
Abstract： The Australia Telescope Large Area Survey (ATLAS) and the VLA survey in the XMM-LSS/VIDEO deep field provide deep ($\approx 15$ ${\mu}$Jybeam$^{-1}$) and high-resolution ($\approx$ 4.5--8 arcsec) radio coverage of the three XMM-SERVS fields (W-CDF-S, ELAIS-S1, and XMM-LSS). These data cover a total sky area of 11.3 deg$^2$ and contain $\approx 11000$ radio components. Furthermore, about 3~deg$^2$ of the XMM-LSS field also has deeper MIGHTEE data that achieve a median RMS of 5.6 ${\mu}$Jy beam$^{-1}$ and detect more than 20000 radio sources. We analyze all these radio data and find source counterparts at other wavebands utilizing deep optical and IR surveys. The nature of these radio sources is studied using radio-band properties (spectral slope and morphology), and the IR-radio correlation. %and spectral energy distribution. Radio AGNs are selected and compared with those selected using other methods (e.g. X-ray). We found 1656 new AGNs that were not selected using X-ray and/or MIR methods. We constrain the FIR-to-UV SEDs of radio AGNs using {\sc cigale} and investigate the dependence of radio AGN fraction upon galaxy stellar mass and star-formation rate.
Peer Review Status:
Awaiting Review
Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-04-25
Abstract： We present X-ray spectral and long-term variability analyses of an unbiased sample of 361 optically selected radio-loud quasars (RLQs) utilizing sensitive serendipitous X-ray data from the Chandra and XMM-Newton archives. The spectral and temporal properties of RLQs are compared with those of radio-quiet quasars (RQQs) matched in $L_\mathrm{2500A}$ and $z$. The median power-law photon index ($\Gamma$) of RLQs is $1.84^{+0.01}_{-0.01}$, which is close to that of matched RQQs ($1.90^{+0.02}_{-0.01}$). No significant correlations between $\Gamma$ and radio-loudness, $L_\mathrm{x}/L_\mathrm{x,rqq}$ (the X-ray luminosity over that expected from the $L_\mathrm{x}$-$L_\mathrm{uv}$ relation for RQQs), redshift, or Eddington ratio are found for our RLQs. The stacked X-ray spectra of our RLQs show strong iron-line emission and a possible Compton-reflection hump. The intrinsic X-ray variability amplitude is $\approx40$% for RLQs on timescales of months-to-years in the rest frame, which is somewhat smaller than for the matched RQQs ($\approx60$%) on similar timescales, perhaps due to the larger black-hole masses and lower Eddington ratios in our RLQ sample. The X-ray spectral and variability results for our RLQs generally support the idea that the X-ray emission of typical RLQs is dominated by the disk/corona, as is also indicated by a recent luminosity correlation study.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-04-25
Abstract： Radio-loud quasars (RLQs) are known to produce excess X-ray emission, compared to radio-quiet quasars (RQQs) of the same luminosity, commonly attributed to jet-related emission. Recently, we found that the HeII EW and $\alpha_{\rm{ox}}$ in RQQs are strongly correlated, which suggests that their extreme-ultraviolet (EUV) and X-ray emission mechanisms are tightly related. Using 48 RLQs, we show that steep-spectrum radio quasars (SSRQs) and low radio-luminosity ($L_{\rm R}$) flat-spectrum radio quasars (FSRQs) follow the $\alpha_{\rm ox}$--HeII EW relation of RQQs. This suggests that the X-ray and EUV emission mechanisms in these types of RLQs is the same as in RQQs, and is not jet related. High-$L_{\rm R}$ FSRQs show excess X-ray emission given their HeII EW by a factor of $\approx$ 3.5, which suggests that only in this type of RLQ is the X-ray production likely jet related.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-04-25
Abstract： Radio-loud quasars (RLQs) are more X-ray luminous than predicted by the X-ray-optical/UV relation (i.e. $L_\mathrm{x}\propto L_\mathrm{uv}^\gamma$) for radio-quiet quasars (RQQs). The excess X-ray emission depends on the radio-loudness parameter ($R$) and radio spectral slope ($\alpha_\mathrm{r}$). We construct a uniform sample of 729 optically selected RLQs with high fractions of X-ray detections and $\alpha_\mathrm{r}$ measurements.We find that steep-spectrum radio quasars (SSRQs; $\alpha_\mathrm{r}\le-0.5$) follow a quantitatively similar $L_\mathrm{x}\propto L_\mathrm{uv}^\gamma$ relation as that for RQQs, suggesting a common coronal origin for the X-ray emission of both SSRQs and RQQs. However, the corresponding intercept of SSRQs is larger than that for RQQs and increases with $R$, suggesting a connection between the radio jets and the configuration of the accretion flow. Flat-spectrum radio quasars (FSRQs; $\alpha_\mathrm{r}>-0.5$) are generally more X-ray luminous than SSRQs at given $L_\mathrm{uv}$ and $R$, likely involving more physical processes. The emergent picture is different from that commonly assumed where the excess X-ray emission of RLQs is attributed to the jets. We thus perform model selection to comparecritically these different interpretations, which prefers the coronal scenario with a corona-jet connection. A distinct jet component is likely important for only a small portion of FSRQs.The corona-jet, disk-corona, and disk-jet connections of RLQs are likely driven by independent physical processes. Furthermore, the corona-jet connection implies that small-scale processesin the vicinity of SMBHs, probably associated with the magnetic flux/topology instead of black-hole spin, are controlling the radio-loudness of quasars.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines submitted time 2024-04-25
Abstract： We have investigated the jet-linked \mbox{X-ray} emission from highly radio-loud quasars (HRLQs; $\log R>2.5$) at high redshift. We studied the X-ray properties of 15 HRLQs at $z>4$, using new {\it Chandra} observations for six objects and archival {\it XMM-Newton} and {\it Swift} observations for the other nine. We focused on testing the apparent enhancement of jet-linked \mbox{X-ray} emission from HRLQs at $z>4$. Utilizing an enlarged (24 objects) optically flux-limited sample with complete X-ray coverage, we confirmed that HRLQs at $z>4$ have enhanced X-ray emission relative to that of HRLQs at $z\approx$ 1--2 with matched UV/optical and radio luminosity, at a \mbox{4.0--4.6}~$\sigma$ level; the X-ray enhancements are confirmed considering both two-point spectral indices and inspection of broad-band spectral energy distributions. The typical factor of enhancement is revised to $1.9^{+0.5}_{-0.4}$, which is smaller than but consistent with previous results. A fractional IC/CMB model can still explain our results at high redshift, which puts tighter constraints on the fraction of IC/CMB X-rays at lower redshifts, assuming the physical properties of quasar jets do not have a strong redshift dependence. A dominant IC/CMB model is inconsistent with our data.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines submitted time 2024-04-25
Abstract： Rapid flares from blazars in very high energy (VHE) $\gamma$-rays challenge the common understanding of jets of active galactic nuclei (AGNs). The same population of ultra-relativistic electrons is often thought to be responsible for both X-ray and VHE emission. We thus systematically searched for X-ray flares at sub-hour timescales of TeV blazars in the entire Rossi X-ray Timing Explorer archival database. We found rapid flares from PKS 2005-489 and S5 0716+714, and a candidate rapid flare from 1ES 1101-232. In particular, the characteristic rise timescale of PKS 2005-489 is less than half a minute, which, to our knowledge, is the shortest among known AGN flares at any wavelengths. The timescales of these rapid flares indicate that the size of the central supermassive black hole is not a hard lower limit on the physical size of the emission region of the flare. PKS 2005-489 shows possible hard lags in its flare, which could be attributed to particle acceleration (injection), its flaring component has the hardest spectrum when it first appears. For all flares, the flaring components show similar hard spectra with $\Gamma=1.7-1.9$, and we estimate the magnetic field strength $B\sim$ 0.1--1.0 G by assuming synchrotron cooling. These flares could be caused by inhomogeneity of the jets. Models that can only produce rapid $\gamma$-ray flares but little synchrotron activity are less favorable.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-04-25
Abstract： Fluxes emitted at different wavebands from active galactic nuclei (AGNs) fluctuate at both long and short timescales. The variation can typically be characterized by a broadband power spectrum, which exhibits a red-noise process at high frequencies. The standard method of estimating power spectral density (PSD) of AGN variability is easily affected by systematic biases such as red-noise leakage and aliasing, in particular, when the observation spans a relatively short period and is gapped. Focusing on the high-frequency PSD that is strongly distorted due to red-noise leakage and usually not significantly affected by aliasing, we develop a novel and observable normalized leakage spectrum (NLS), which describes sensitively the effects of leaked red-noise power on the PSD at different temporal frequencies. Using Monte Carlo simulations, we demonstrate how an AGN underlying PSD sensitively determines the NLS when there is severe red-noise leakage and thereby how the NLS can be used to effectively constrain the underlying PSD.
Peer Review Status:Awaiting Review
Nursing report of a case of the treatment of external cough with ear point sticking combined with ear tip bleeding
Subjects: Other Disciplines submitted time 2024-04-25
Abstract：
To observe the therapeutic effect of the ear point sticking combined with ear tip bleeding on a case of external cough cough. Select 1 patient with exceptional sense of cough, massage targeted acupoints through ear point pressure, combined with a series of treatment techniques such as ear tip bleeding, to effectively improve the balance of Yin and Yang, adjust the zang fu organs, dredging the meridians, Fuzhengdispelling evil, promoting blood circulation and pain relief, effectively relieve the symptoms of cough and sputum in patients, thereby relieving the disease and promoting recovery, with good clinical effect and no obvious adverse reactions.
Peer Review Status:Awaiting Review
A nursing case report on a patient with facial spasm treated with comprehensive moxibustion technique of Huolong cupping
Subjects: Other Disciplines submitted time 2024-04-07
Abstract：
This article summarizes the observation and nursing experience of a patient with facial spasm treated with comprehensive moxibustion with fire dragon cupping. Based on the theory of traditional Chinese medicine syndrome differentiation and nursing, comprehensive moxibustion treatment with fire dragon jar was given and dynamic observation was carried out. At the same time, routine nursing measures such as emotional care and daily living care were combined to effectively improve the clinical symptoms of patients, alleviate their anxiety, and improve their comfort and quality of life.
Peer Review Status:Awaiting Review
Analysis of the Clinical Application Effect of Integrative Chinese and Western Medicine Nursing Pathway on Dementia Patients
Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-03-11
Abstract：
Objective To evaluate the effect of integrated traditional Chinese and Western medicine nursing path on patients with dementia through a randomized controlled trial.
Methods 90 patients who met the inclusion criteria were selected and randomly divided into an experimental group (receiving care with integrated traditional Chinese and Western medicine) and a control group (receiving routine care). MMSE, PSQI, ADL, and MNA were measured at baseline, the fourth week of intervention, and the fourth week after discharge, and compared between groups.
Results ①MMSE: The experimental group improved significantly in the fourth week of intervention and follow-up (P<0.05), and was significantly better than the control group (P<0.05). ②PSQI: The test group dropped significantly in the fourth week of intervention and follow-up (P<0.05), the control group also dropped in the fourth week of intervention (P<0.05), and the test group was significantly better (P<0.05). ③ADL: There was no significant difference between the two groups (P>0.05). ④MNA: There was no significant difference between the two groups in the fourth week of intervention (P＞0.05), and the experimental group improved significantly in the fourth week of follow-up (P＜0.05).
Conclusion The nursing path of integrated traditional Chinese and Western medicine has a significantly better intervention effect on the condition of patients with dementia than conventional nursing.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-02-12
Abstract： The technical evolution of domestic multi-functional electricity meter is deeply discussed. With the rapid development of the domestic power market and the continuous innovation of technology, the domestic multi-functional electricity meters have experienced the transformation from simple billing to complex multi-functional, from a single application to a wide range of fields. This transformation has not only driven the rapid development of electricity meter technology, but also met the increasing power demand and management requirements. This paper expounds the concept of multi-function meter, the working principle and algorithm of digital multiplier, the initiation and evolution of multi-function electricity meter standard, and the initiation and evolution of domestic multi-function electricity meter products. Although the domestic independent production of multi-functional meter has made great achievements in performance, but in the reliability and key process technology still need to be improved. In addition, the development of communication technology also provides a new opportunity for the progress of electricity meter technology. The application of the new technology provides a more convenient and efficient way for the data transmission and remote management of electricity meters. Domestic multi-functional electricity meters have made remarkable achievements in technology evolution and application and expansion, but they still face some challenges and opportunities. In the future, with the continuous development of the power market and the promotion of smart grid construction, domestic multi-functional electricity meters need to continue to strengthen technological innovation and product research and development, improve the reliability and competitiveness of products, in order to meet higher application needs and market requirements.
Peer Review Status:Awaiting Review
Nursing experience of a patient with stubborn hiccup treated with finger acupoint tapping combined with moxa stick moxibustion
Subjects: Other Disciplines submitted time 2024-01-23
Abstract：
This article summarizes the nursing experience of a patient with stubborn hiccup treated with finger acupoints combined with moxa stick moxibustion with traditional Chinese medicine characteristics. On the basis of the combination of traditional Chinese and Western medicine treatment, it is supplemented with external treatment methods of traditional Chinese medicine. Through syndrome differentiation and treatment, special acupoints are selected based on the disease, and special techniques are used to play an important role in promoting qi circulation and relieving depression, as well as reducing gastric reflux in the overall treatment. Its therapeutic effect is significant, and the patient's hiccup symptoms disappear with minimal trauma, Safe without side effects, providing reference for clinical practice.
Peer Review Status:Awaiting Review
Nursing experience of one case of traditional Chinese medicine water cupping therapy for treating lower back pain of qi stagnation and blood stasis type
Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2024-01-22
Abstract：本文总结1例中药水罐疗法治疗气滞血瘀型腰痛患者疼痛的临床疗效。根据该例患者住院期间出现的腰部疼痛症状，通过采用中医护理特色水罐治疗技术，治疗患者腰部疼痛的症状疗效显著，从而提高了患者的生活质量。
Peer Review Status:Awaiting Review
Application of modified fixation method in self-made negative pressure drainage of difficult-to-fix site
Subjects: Other Disciplines submitted time 2024-01-07
Abstract：
Objective Application of modified fixation method in self-made negative pressure drainage of difficult-to-fix site.
Methods From April, 2020 to May, 2021, 34 patients with chronic wound, who were treated with self-made negative pressure on the shoulder, sacrococcygeal region, buttock, perineum and popliteal fossa, were selected as the control group. From July 2021 to August 2022, 34 patients with chronic wound treated with self-made negative pressure at the difficult fixation sites such as axillary shoulder, sacrococcygeal region, buttock, perineum and popliteal fossa were selected as observation group. Control group: self-made negative pressure was fixed with traditional transparent film; observation group: self-made negative pressure was fixed with improved fixation method. The incidence of membrane curling, negative pressure leakage, negative pressure replacement frequency and tension injury of surrounding skin were compared between the two groups.
Results The incidence of membrane curling, negative pressure leakage, negative pressure replacement frequency and tension injury of surrounding skin in observation group were significantly lower than those in control group (P < 0.05).
Conclusion In that self-made negative pressure drainage technique for difficult fixation site, the improved fixation method is more secure than the traditional fixation, effectively reduces the incidence of tension injury of surrounding skin, and ensure the effectiveness of negative pressure, reduce the frequency of negative pressure replacement and treatment costs, reduce patients' pain caused by changing medicine, and improve patients' satisfaction.
Peer Review Status:Awaiting Review
The clinical application of Orem self-care theory in the treatment of ulcerative colitis patients with traditional Chinese medicine retention enema
Subjects: Other Disciplines submitted time 2023-11-20
Abstract：
Objective This study applies Orem self-care theory to the treatment of ulcerative colitis with traditional Chinese medicine retention enema, and analyzes the impact of this plan on clinical symptoms and inflammatory response of patients.
Method A total of 84 patients with ulcerative colitis who received treatment in our hospital from February 2020 to February 2023 were selected as research objects, and were divided into experimental group and control group according to envelope method, with 42 cases in each group. Both groups of patients were treated with retention enema. On this basis, the control group received routine nursing intervention, while the experimental group received Orem self-care theory intervention on routine nursing. Clinical symptoms, inflammatory response and quality of life were compared between the two groups.
Result After intervention, the UCDAI index of both groups of patients showed a decrease in bloody stools, diarrhea, endoscopic manifestations, and physician evaluated scores compared to before intervention (P<0.05), with the experimental group being lower than the control group; TNF of two groups of patients after intervention- α、 The levels of IL-6 and IL-8 decreased compared to before intervention (P<0.05), with the experimental group being lower than the control group; After intervention, the IBDQ scores of intestinal symptoms, systemic symptoms, emotional function, and social function in both groups of patients decreased compared to before intervention (P<0.05), with the experimental group being lower than the control group (P<0.05).
Conclusion The application of Orem self-care theory in traditional Chinese medicine retention enema for the treatment of ulcerative colitis can effectively improve patients' clinical symptoms and inflammatory reactions, improve their quality of life.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines Subjects: Other Disciplines Subjects: Other Disciplines submitted time 2023-11-07
Abstract： Objective To observe the therapeutic effect of dialectical drinking water combined with moxibustion and rhubarb application on Shenque acupoint on qi deficiency constipation.Method A total of 180 patients with Qi deficiency constipation who visited the outpatient department of our hospital from March 2020 to December 2021 were selected as the research subjects. They were randomly divided into three groups: A, B, and C, with 60 patients in each group. Group A: unlimited drinking water, Group B: Maoshi drinking 300ml of warm boiled water, Group C: Maoshi drinking 300ml of Huangqi water. All three groups of patients were treated with 4 courses of moxibustion and rhubarb application at Shenque point. Observe, record, and compare the defecation time, stool characteristics, frequency, quantity, and general condition of the three groups of patients.Results Comparison of treatment effects: Group B was superior to Group A, Group C was superior to Group B. The treatment effects of the three groups were C>B>A, and the difference was statistically significant (P<0.05).Conclusion The combination of dialectical drinking water, moxibustion, and rhubarb application on Shenque acupoint has a good therapeutic effect on qi deficiency constipation, and has the advantages of regulating the intestines and stomach, strengthening the body, non-invasive, and adverse experience, which is worthy of clinical promotion and application.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines submitted time 2023-10-31
Chengbo Li
Qungang Wen
Yuanyong Fu
Jing Zhou
Shuhua Zhou
Qiuying Meng
C. Spitaleri
A. Tumino
R. G. Pizzone
L. Lamia
Abstract： The study of d(d,p)t reaction is very important for the nucleosynthesis in both standard Big Bang and stellar evolution, as well as for the future fusion reactors planning of energy production. The d(d,p)t bare nucleus astrophysical S(E) factor has been measured indirectly at energies from about 400 keV down to several keV by means of the Trojan horse method applied to the quasi-free process 2H(6Li, pt)4He induced at a lithium beam energy of 9.5 MeV, which is closer to the zero quasi-free energy point. An accurate analysis leads to the determination of the Sbare(0) = 56.7±2.0keV·b and of the corresponding electron screening potential Ue = 13.2± 4.3eV. In addition, this work gives an updated test for the Trojan horse nucleus invariance comparing with previous indirect investigations using 3He = (d + p) breakup.
Peer Review Status:Awaiting Review
Subjects: Other Disciplines submitted time 2023-02-24
Abstract： In recent years, with large number of HVDC projects access to AC system, bring important influence to AC-DC combined power grid, operation condition of DC system especially the performance of the control and protection system has become important factor in AC / DC hybrid power grid security and stability. System failure caused the smoothing reactor gas relay malfunction is one of the main causes of non- electrical quantity factors of DC block, this paper analyzes the principle and characteristics of smoothing reactor gas relay equipment, nonlinear coupling characteristics of smoothing reactor gas relay mechanical vibration and DC shock current is modelled and decoupled using Gaussian regression algorithm, which is compatible with the electromagnetic transient simulation algorithm, and pure electromagnetic simulation using the paper proposed model in East China power grid AC / DC power grid actual engineering example, which can detailed describe the nonlinear quickly dynamic response characteristics for electric factors AC / DC power grid fault shock current dynamic changes to non-electrical quantity smoothing reactor gas relay mechanical vibration acceleration. It provide key technical means for many practical engineering smoothing reactor gas relay malfunction caused DC block accident analysis and fault prevention, and equipment improvement, which is of important practical significance for further improving the multi-dimensional accuracy of HVDC practical engineering simulation, and provides the mentality for the detailed modeling of other nonlinear electrical related equipment.
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