Subjects: Library Science，Information Science >> Library Science submitted time 2024-04-19
Abstract： With the deepening of Healthy China, the level of public health literacy has significantly improved, and more and more patients are participating in joint decision-making. The Health Science Popularization Handbook provides the public and patients with the basis for knowing, choosing, and seeking support. It plays an important role in enhancing information balance in the medical process, promoting effective communication between doctors and patients, reducing patient uncertainty, and helping patients to actively respond to medical conditions. However, there is still a lack of guiding opinions on how to develop a Health Science Popularization Handbook in China. After more than three years of exploration, the team has developed a set of procedures and application methods for the development of a public and patient health science popularization handbook, which is widely applicable to health industry practitioners and public and patients who aspire to engage in health science popularization creation, in order to provide reference for the promotion of health science popularization work.
Peer Review Status:
Awaiting Review
Subjects: Nuclear Science and Technology >> Nuclear Detection Technology and Nuclear Electronics submitted time 2024-03-20
Fu Shengwei
Long Jinbiao
Zhan Meiqiang
Lu Chengui
Guo Yufei
Yang Junjie
Zhang Zhe
Yu Yuhong
Lu Fenhua
Liu Tuoqi
Li Zhiyao
Xu Yingfeng
Sun Zhiyu
Yang Herun
Abstract： The properties of working gases in gas detectors,such as the average ionization energy,Fano factor,and drift velocity,have a significant impact on the preliminary simulation,parameter design,and trajectory reconstruction of the detectors.SeF6,as the target working gas in domestic neutrinoless double beta decay experiments,has unknown parameters that need to be investigated.To study the relevant parameters of this gas,a measurement scheme was designed and the accuracy and reliability of the experimental plan were tested using Ar/CH4=90/10(P10) as the working gas.In the experiment,the average ionization energy of P10 was measured using a grid ionization chamber with an 𝛼 source,yielding a value of 27.10±0.04 eV,and the Fano factor was determined to be 0.175±0.001 when the energy resolution reached 0.91% after subtracting noise through calibration electronics.Additionally,the drift velocity was measured using a 266 nm laser and a time projection chamber,and the results were consistent with the Garfield++ simulation results.The experimental results indicate the feasibility of the measurement scheme and demonstrate high reliability of
the measurement results.This provides a solid foundation for further research on the properties of SeF6.
Subjects: Physics >> Nuclear Physics Subjects: Nuclear Science and Technology >> Nuclear Detection Technology and Nuclear Electronics submitted time 2024-02-27
LUFenhua
TANG Shuwen
FU Shengwei
YAN Duo
MA Peng
YANG Haibo
YU Yuhong
ZHANG Xueheng
WANG Shitao
ZHANG Yongjie
FANG Fang
LIU Tuoqi
XU Yingfeng
LI Zhiyao
LIU Xiangman
WEI Xiaobao
SUN Zhiyu
Abstract： The high-intensity heavy-ion accelerator facility (HIAF) under construction is equipped with an advanced radioactive beam line HFRS, which will provide a new opportunity for the research of high-energy radionuclide beam physics in China.The characteristic of HFRS is high intensity, This puts forward very strict requirements for particle recognition energy loss detector.The traditional energy loss detector generally adopts the analog plug-in technology route of preamplifier, main amplifier and ADC for signal processing.This scheme has some problems, such as slow electronic response, poor flexibility and difficulty in dealing with serious pulse pile-up at high count rate. We propose a new applicable to high count rate energy loss detector scheme.The signal of the energy loss detector is initially amplified by the fast charge sensitive preamplifier, and Then the waveform is directly collected by waveform digitizer and then processed by digital algorithm.And use the Multiple Sampling Ionization Chamber (MUSIC) of secondary beam line of lanzhou RIBLL2 for the radioactive source and beam test.Using the 3 components 𝛼 source test, using digital shaping algorithm processing for acquisition of waveform, energy resolution (FWHM) of up to 1.31%.In RIBLL2 provide 300 MeV/u of 56Fe beam test, uses the time constant of 𝜏f = 2 𝜇𝑠 of fast charge sensitive preamplifier on the count rate is close to 1 MHz is still not occurred pulse pile-up obviously.
Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：随着人工智能技术的迭代,传媒业的发展也迎来了新的发展机遇和挑战。一方面,人工智能极大提高了新闻报道的写作效率,将内容精准送达不同受众;另一方面,人工智能推送的内容良莠不齐,在受众交互、人文情怀、深度内容挖掘等方面仍存在短板。本文就人工智能与传媒结合的利弊进行分析,并为"人工智能+媒体"如何发力提出对策。
Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：数说新闻是这个时代背景下的产物,同时也开辟了新型电视节目的先河,并在央视与各大省级电视新闻节目中频繁应用。2015年,央视网站首页正式出现了"数说新闻"的版面,新型叙述新闻的方式很快凭借着自身的优越性成为重点,在新闻市场上占有一席之位,成为央视新闻的关键频道。作为一种新的新闻形式,"数说新闻"的灵活性、数据性、实效性、趣味性等特点得到了相关专家与媒体的认可。数字讲述新闻,其凭借自身的优势,以更加直观的、明确的方式在新闻报道中被广泛应用。因而,而媒体人的采访重心也从原有的抢占新闻先机转为为观众更加清晰地解读新闻事件之间的关联及产生的影响。
Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：自媒体自诞生之日起,就以前所未有的发展速度渗透到人们的日常生活中,成为一支不容小觑的媒体力量,对当下的新闻传播产生了深刻的影响。自媒体有其得天独厚的优势和广泛的受众群体,与此同时,自媒体独特的及时性和互动性支撑它成为了当下新闻传播现实中的重要力量。与之相对应的传统媒体,应该如何应对自媒体势如破竹的发展,如何在自媒体时代与之合作共赢,融合互补成为探索新闻传播发展的必由之路。
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The Tibetan Plateau and surrounding mountains contain the largest glacier storage outsides the north and south polar regions. Under the global warming, recently glaciers in China are generally experiencing rapid melting and shrinkage. This rapid glacier change impacts the water resource that supplied by melt-water, and also favors glacial hazards, such as glacier collapse, glacier surging, glacial debris flow, and glacial lake outburst flood. Those glacial hazards show their spatio-temporal distribution characters, dynamic processes and mechanisms. Accompanying with the recent rapid glacier change, which reduces the glacier stability by warming, glacial hazards become more frequent. Furthermore, since global warming continues and human activity intensifies, the uncertainty and risk of glacial disasters will intensify. Therefore, scientific solution and countermeasures are needed based on the researches on glacial changes and hazards.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The Tibetan Plateau and surroundings, also known as the Third Pole, is widely acknowledged as the Asian Water Tower. It holds glaciers with an area about 100 000 km2, and lakes with an area about 50 000 km2. It gives birth to more than ten big rivers in Asia including the Yangtze River, Yellow River, Yarlung Tsangpo, Indus, Ganges, Mekong, Amu Darya, Tarim River, etc. Its environmental changes affect water resources utilization in China and water securities in many nations involved in the Belt and Road initiative. The Asian Water Tower is undergoing dramatic changes characterized with unbalance in a warming climate. Accelerated glacier retreats, permafrost degradation, lake expansion, as well as increase of glacial melt to runoff are all related to the unbalance change of the Asian Water Tower. These have put the Tibetan Plateau and its surrounding regions at risk and caused many water-related hazards such as glacier collapse. Asian Water Tower change would even be amplified through the atmosphere and hydrosphere to affect global climate and water cycle, thus coupling and interacting with changes on the Arctic and Antarctica. The Second Tibetan Plateau Scientific Expedition and Research program (STEP) and Pan-Third Pole Environment study for a Green Silk Road program (Pan-TPE) will focus on the study of Asian Water Tower change and its local to regional impacts in the past half century, conduct comprehensive field expeditions and research, and advise on science policy to confront Asian Water Tower change and impacts. The ultimate goal of the STEP and Pan-TPE is to provide scientific advice to China and nations around on water resources regulations and sustainable development, thus serving global ecological environment and a community with a shared future for mankind.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The Quaternary is marked by the Great Ice Age. The basic characteristics of this great ice age are the alternating of glacialinterglacial period in orbital scale and changes of stadial-interstadial in suborbital scale. Present is a relatively warm interglacial period, with glaciers covering only 10% of the land area. At the glacial maximum, glaciers covered about 30% of the global land area, permafrost spread, climate was dry with prevalence of dust, sea level reduced 130–150 m, vegetation contracted to low latitudes more than 10°, and the vertical band spectrum moved down more than 1 000 m. The astronomic theory of ice ages has successfully explained the glacial-interglacial cycles, however, there are still a lot of problems to need studies in detail. Quaternary is also the period of ancient human development. Ancient human was born in East Africa and spread to Eurasia only on a limited scale about 2 Ma ago. The spread on a large scale started during the last interglacial and spread to America and Australia by means of land bridges during Last Glaciation Maximum (LGM). After the younger Dryas, the climate became warm and the human entered the Neolithic Period and gradually transited to the agricultural society. After the Industrial Revolution, human development has been profoundly affecting the natural process of the Earth, leading to global warming, heralding the arrival of an “Anthropocene”.
Subjects: Medicine, Pharmacy >> Preclinical Medicine submitted time 2022-09-06 Cooperative journals: 《中国全科医学》
Abstract： Background AIDS is a very dangerous infectious disease. The analysis of its morbidity and mortality trend and the influence of age, period and cohort on the morbidity and mortality of AIDS can provide certain reference value for the formulation of AIDS related prevention and control policies. Objective To analyze the trend of the prevalence and mortality of AIDS in China from 2004 to 2018, and to explore the impact of age, period and cohort on the incidence and mortality of AIDS, in the hope of providing reference for China's AIDS prevention and control work. Methods The incidence and mortality data of AIDS in China from 2004 to 2018 were collected from the China Public Health Science Data Center. The Joinpoint regression model was used to analyze the trend of incidence and mortality, and annual percentage change (APC) and average annual percentage change (AAPC) were calculated. The Age-Period-Cohort model was used to analyze the influence of age, period and cohort on the trend of AIDS incidence and mortality. Results The results of Joinpoint regression model showed that the incidence and mortality of AIDS in China increased by 22.7% and 18.8% annually from 2004 to 2018 (P < 0.05). The results of the Age-Period-Cohort model showed that age, age and cohort all affected the morbidity and mortality (all P < 0.05). The longitudinal age curves of the morbidity and mortality of AIDS in China showed a j-shaped upward trend from 0.0004/100,000 to 2828.8285/100,000, respectively, from 2004 to 2018. With the passage of time, the risk of morbidity and mortality increased, and the RR increased from 0.3156 to 2.0244 and 0.3291 to 1.5226, respectively. The later the cohort was born, the higher the risk of morbidity and mortality was, the RR increased from 0.0001 to 471.3853 and 0.0001 to 93.6345, respectively. Conclusion The incidence and mortality of AIDS in China were on the rise from 2004 to 2018, and the prevention and treatment of AIDS should be further strengthened。
Subjects: Geosciences >> Geography submitted time 2021-04-23 Cooperative journals: 《干旱区研究》
Abstract：为研究凋落物在极端干旱区的分解规律，利用凋落物分解袋法，以塔克拉玛干沙漠南缘策勒绿洲地区优势物种花花柴（Karelinia caspia）和胡杨（Populus euphratica）叶凋落物为研究对象，模拟自然状态，分别在3种生境下：土壤表层0 cm、土壤埋深2 cm、悬挂1 m进行凋落物分解试验，探究不同分解位置下的凋落物质量分解和碳（C）、氮（N）元素含量释放特征。结果表明：不同植物的质量损失率在不同分解位置处理下均存在显著差异，土壤表层0 cm处理下凋落物质量损失显著高于悬挂1 m和土壤埋深2 cm。至凋落物分解试验结束，花花柴质量损失率依次为：土壤表层0 cm（19.91%）>悬挂1 m（15.99%）>土壤埋深2 cm（12.35%）。胡杨质量损失率依次为：土壤表层0cm（24.15%）>悬挂1 m（13.44%）>土壤埋深2 cm（8.72%）。在整个分解过程中，两种植物叶凋落物N含量呈富集现象，C含量呈释放状态。在不同分解位置下，N元素富集量和C元素量损失差异显著，土壤表层和土壤埋深2 cm凋落物N元素富集量均小于悬挂1 m凋落物，C元素损失量均大于悬挂1 m凋落物。Olson指数衰减模型对凋落物质量残留率进行拟合，两种植物的分解常数k 值大小排序均为：土壤表层0 cm>悬挂1 m>土壤埋深2 cm。凋落叶质量残留率多因素方差分析表明在不同分解时间和不同分解位置对凋落物质量残留率影响显著（P<0.01）。在极端干旱区，掩埋条件不是驱动凋落物分解的主要因素，影响凋落物分解的因素主要是光降解。
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-02 Cooperative journals: 《计算机应用研究》
Abstract： This paper proposed a new reversible robust steganography method in H. 264 / AVC. It first distributed the embedded secret data by a specific polynomial and obtain a series of sub-secrets. Then it used the BCH code to encode each group of the sub-secrets and embed the encoded sub-secrets into each frame of the video with prediction mode. And it recovered the hidden data by using the encoded t sub-secrets of the video frames. The experiment results shown that the method can recover the original video completely and has the high bit error and frame error robustness. When the random frame rate is less than or equal to 15%, the method can recover the secret data completely. In addition, the method can avoid intra-frame distortion drift and has better visual concealment.
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