Evolution and Governance of the Structure of Marine Economic Networks in China’s Coastal Areas: Based on Sea-related A-share Listed Companies

Data on discrete,isolated attributes of the marine economy are often used in traditional marine economic research.However,as the focus of urban research shifts from internal static attributes to external dynamic linkages,the importance of marine economic net-work research is beginning to emerge.The construction of the marine economic network in China’s coastal areas is necessary to change the flow of land and sea resources and optimize regional marine economic development.Employing data from headquarters and branches of sea-related A-share listed enterprises to construct the marine economic network in China,we use social network analysis(SNA)to discuss the characteristics of its evolution as of 2010,2015,and 2020 and its governance.The following results were obtained.1)In terms of topological characteristics,the scale of the marine economic network in China’s coastal areas has accelerated and expan-ded,and the connections have become increasingly close;thus,this development has complex network characteristics.2)In terms of spatial structure,the intensity of the connection fluctuates and does not form stable development support;the group structure gradually becomes clear,but the overall pattern is fragmented;there are spatial differences in marine economic agglomeration radiation;the radi-ation effect of the eastern marine economic circle is obvious;and the polarization effect of northern and southern marine economic circles is significant.On this basis,we construct a framework for the governance of a marine economic network with the market,the government,and industry as the three governing bodies.By clarifying the driving factors and building objectives of marine economic network construction,this study aims to foster the high-quality development of China’s marine economy.

Special Relativity’s “Newtonization” in Complex “Para-Space”: The Two Theories Equivalence Question

Complex model, say C3, of “para-space” as alternative to the real M4 Minkowski space-time for both relativistic and classical mechanics was shortly introduced as reference to our previous works on that subject. The actual aim, however, is an additional analysis of the physical and para-physical phenomena’ behavior as we formally transport observable mechanical phenomena [motion] to non-real interior of the complex domain. As it turns out, such procedure, when properly set, corresponds to transition from relativistic to more classic (or, possibly, just classic) kind of the motion. This procedure, we call the “Newtonization of relativistic physical quantities and phenomena”, first of all, includes the mechanical motion’s characteristics in the C3. The algebraic structure of vector spaces was imposed and analyzed on both: the set of all relativistic velocities and on the set of the corresponding to them “Galilean” velocities. The key point of the analysis is realization that, as a matter of fact, the relativistic theory and the classical are equivalent at least as for the kinematics. This conclusion follows the fact that the two defined structures of topological vector spaces i.e., the structure imposed on sets of all relativistic velocities and the structure on set of all “Galilean” velocities, are both diffeomorphic in their topological parts and are isomorphic as the vector spaces. As for the relativistic theory, the two approaches: the hyperbolic (“classical” SR) with its four-vector formalism and Euclidean, where SR is modeled by the complex para-space C3, were analyzed and compared.

加入PIC/S对我国职业化专业化药品检查员队伍建设的思考

目的:对我国职业化专业化药品检查员队伍建设进行深入思考,以期为早日加入PIC/S国际组织,实现我国药品检查国际化,促进我国医药行业走向世界提供参考与借鉴。方法:对照PIC/S审计清单中对检查员要求的模块,概述PIC/S对检查员的要求,对我国检查员队伍现状进行分析,对我国职业化专业化药品检查员队伍建设进行深入思考。结果与结论:为加快建立职业化专业化药品检查员队伍,以满足PIC/S对药品检查员的要求,应扩大职业化专职化检查员的规模,深入推进检查员的分级分类管理。同时,需要建立高素质的检查员培养模式,以提升其检查能力。此外,还应建立具有职业特点的职称评审体系,并完善检查员的薪酬待遇保障机制和激励机制,以充分调动检查员提升能力的积极性和主动性,为我国早日加入PIC/S提供坚实保证。

基于稀疏自适应S变换的特种设备故障振动信号检测研究

鉴于特种设备的特殊性,其故障的检测尤为重要,而检测特种设备振动信号是发现故障的一种重要手段,基于此种原因,本文提出基于稀疏自适应S变换特种设备故障振动信号检测方法。从特种设备的振动信号时频特征出发,通过稀疏自适应S变换提取特种设备振动信号时频特征图;构建深度卷积神经网络模型,将经过稀疏自适应S变换提取的时频特征图作为网络模型输入样本,经深度学习后,完成特种设备故障振动信号检测,获取设备故障诊断结果。实验结果表明:该方法提取到振动信号特征较好,可清晰表达故障频率,特征表达能力强;可明确检测出特种设备故障发生时间以及故障原因,且检测准确率高。

Demage Spreading in the Ising Model with a special Metropolis Dynamics Approach

The time evolution of the Hamming distance (damage spreading) for the and Ising models on the square lattice is performed with a special metropolis dynamics algorithm. Two distinct regimes are observed according to the temperature range for both models: a low-temperature one where the distance in the long-time limit is finite and seems not to depend on the initial distance and the system size; a high-temperature one where the distance vanishes in the long-time limit. Using the finite size scaling method, the dynamical phase transition (damage spreading transition) temperature is obtained as for the Ising model.

The Value of Saudi Arabia Industrial Firms Between the Modigliani-Miller＇s and Gordon＇s Models： An Empirical Study on Cement Companies in Saudi Arabia

The most important target of the financial management is to develop the values of the foundation and develop the wealth of shareholders （wealth of the owners）, which is the primary target of the qualified and successful financial management. This target, developing the value of the foundation, depends on the total profit that could be achieved by the company and counting the profit per share, but undoubtedly, the financial management should consider the other targets such as social responsibility and exchange between risk and revenue and others. This research, with its both theoretical and practical aspects, aims at illuminating the value of some foundations in Saudi Arabia, which are already registered in the stock market, by comparing the value of each foundation using two models namely the model of Modigliani-Miller （M＆M） and the model of Gordon. In spite of the difficulties found in the usage of both models, especially Gordon＇s model, we will use both of them to explain the aspects of imperfection in each model. This research will depend on a sample of Sandi industrial companies by getting financial data of these companies over a past decade and the usage of these data, in other words, to measure the value of Saudi companies against the market.

Ohm’s Law Refutes Current Version of the Special Theory of Relativity

It is shown that Ohm’s law is not only the main electrical engineering law, but also a generally scientific worldview law of the extreme significance, as in the interpretation of Steinmetz it proves physical reality of imaginary numbers theoretically and experimentally in the most indisputable way. Thus, it refutes the principle of light speed non-exceedance, which is fundamental in the special theory of relativity. Moreover, unlike the MINOS and OPERA experiments recognized by physical com-munity as not enough reliable, which were conducted for the same purpose, alternative experiments were performed during the research of oscillation processes in linear electric circuits. Therefore, they are absolutely reliable and conclusive as can be repeated and verified in any electrical engineering laboratory. The principle of phy-sical reality of imaginary numbers proven by the electrical engineering experiments is generally scientific, since mathematics is the universal language of the exact sciences. Therefore, all scientific theories and hypotheses in quantum mechanics, relativity theory, geo-physics, cosmology, optics, radio electronics and other sciences should be adjusted accordingly, given the principle of physical reality of imaginary numbers. There is an example of how this can be done in the special theory of relativity and astrophysics. This approach allowed explanation of dark matter and dark energy, which correspond to the invisible parallel universes existing in extra dimensions.

Magnifying endoscopy for the diagnosis of specialized intestinal metaplasia in short-segment Barrett's esophagus

AIM:To determine whether magnified observation of short-segment Barrett’s esophagus(BE)is useful for the detection of specialized intestinal metaplasia(SIM).METHODS:Thirty patients with suspected short-segment BE underwent magnifying endoscopy up to×80.The magnified images were analyzed with respect to their pit-patterns,which were simultaneously classified into five epithelial types[Ⅰ(small round),Ⅱ(straight),Ⅲ(long oval),Ⅳ(tubular),Ⅴ(villous)]by Endo’s classification.Then,a 0.5%solution of methylene blue(MB)was sprayed over columnar mucosa.The patterns of the magnified image and MB staining were analyzed.Biopsies were obtained from the regions previously observed by magnifying endoscopy and MB chromoendoscopy.RESULTS:Three of five patients with a typeⅤ(villous)epithelial pattern had SIM,whereas 21 patients with a non-typeⅤepithelial patterns did not have SIM.The sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of pit-patterns in detecting SIM were 100%,91.3%,92.3%,60%and100%,respectively(P=0.004).Three of the 12 patients with positive MB staining had SIM,whereas 14patients with negative MB staining did not have SIM.The sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of MB staining in detecting SIM were 100%,60.9%,65.4%,25%and100%,respectively(P=0.085).The specificity and accuracy of pit-pattern evaluation were significantly superior compared with MB staining for detecting SIM by comparison with the exact McNemar’s test(P=0.0391).CONCLUSION:The magnified observation of a shortsegment BE according to the mucosal pattern and its classification can be predictive of SIM.

From De Sitter Special Relativity and Snyder's Model to Complete Yang Model

The de Sitter special relativity on the Beltrami-de Sitter-spacetime and Snyder＇s model in the momentum space can be combined together with an IR-UV duality to get the complete Yang model at both classical and quantum levels, which are related by the proposed Killing quantization. It is actually a special relativity based on the principle of relativity of three universal constants （c, ρp, R）.

An Empirical Analysis on the Prediction of Chinese Financially Distressed Listed Companies

This paper presents an in-depth analysis of financially distressed listed companies in China between 1998 and 2002. We compare the predictive power of multiple discriminant analysis （MDA）, logistic regression, and neural network models. We design and implement 126 different forecasting models using different predictive methods, different sample proportions, and different initial independent variables. The aim is to determine which model（s） and variables are best applicable for the short-term prediction of financial distress in China. We find that logistic regression models are superior to multiple discriminant analysis models in terms of prediction accuracy rate, restriction of sample distribution or prediction cost, but the neural network models show promise in their low Type I and Type II errors. The paper also inherently tests the applicability of variables traditionally used for bankruptcy prediction to the purpose of financial distress prediction in China.

Study on Influencing Factors of Capital Structure of Energy Listed Companies

Based on the determinative factors school of capital structure theory, this paper uses the data of 35 Chinese energy listed companies from 2000 to 2003, and adopts multi-variable regression method to make an empirical study of the influencing factors of their capital structure. The results indicate that the factors of size, income volatility, and the concentration of owner’s equity have positive relation with the capital structure, while the relation between profit- ability and capital structure is negative. It is also found that the influencing of growth and secured asset on the capital structure are relatively insignificant.

Preface to the Special Issue in Celebration of Professor Shouwen Yu’s 70th Birthday

Shouwen Yu, emeritus Professor of Applied Mechanics at Tsinghua University, was born ,on May 4, 1939 in Xianyou County, Fujian Province of China. From 1955 to 1958, he studied as an undergraduate student in Department of Civil Structures of Tongji University at Shanghai.

A Buoyant Export Market For Yangzi Company's Petrochemical Products

In face of the rapid fall in prices on theworld petrochemical product market, ChinaPetrochemical International Business YangziCorporation (CPIBYZC) took active meas-ures to regulate its product mix, and by theend of November 1996, it had earned foreignexchange through the export of US＄76 mil-lion, emerging from the quagmire of foreigntrade. The import and export operations ofthe very large Yangzi Petrochemical Corpo-

China's Feed Companies Eye Safety Control

China’s feed companies in China are looking to strengthen safety control substantially according to the highest international standard. The first step will be improving the feed safety control in the pre-mixture and compound feed production. The next step will be extending

Chinese Oil Companies＇ Overseas Cooperation in 2016

The paper analyzed the development and features of China's oil companies' overseas business in 2016.Despite the plummeting crude price and a weak global economy,these companies managed to do well in foreign countries.They steadily increased their shares of oil and gas in overseas oil and gas projects with their distinctive and unique ways:the three state-owned oil companies had focused on the countries involved in the One-BeltOne-Road Initiative,and others had been stressed more on international cooperation in a broader sense and areas.The small-and middle-scale companies had been matured and grew during the process.The central and local governments also played indispensable roles by providing need support for the cooperations.

Analysing on External Environment and Industrial Competition of High-Tech Companies—Using Tesla as an Example

As the impact of the global energy crisis deepens,traditional oil resources are exhausted,and the harm caused by air pollution and rising global temperatures is increasingly severe;the government and automobile enterprises generally believe that energy saving and emission reduction is the future technology development direction of the automobile industry.The main direction of the attack is the general trend of new energy vehicles to replace traditional vehicles.As a leader in new energy pure electric vehicles,Tesla Motors has created a new concept of using the Internet for manufacturing cars and opened up a new brand segment of the automobile market.This paper mainly uses the PEST analysis model and Porter’s Five Forces analysis model to understand the essence of Tesla is not a pure electric vehicle manufacturer,but a high-tech innovation driver at the forefront of the world.Based on the PEST model analysis,Tesla’s development is still at the right time and place despite the impact of COVID-19.From Porter’s Five Forces model,Tesla has higher bargaining power and a strong dominant position with upstream suppliers and service providers.Tesla has a first-mover advantage due to its customers’weak bargaining power,which lets Tesla’s leading position in the industry cannot be surpassed in the short term.

Determination of Photon and Elementary Particles Rest Masses Using Maxwell’s Equations and Generalized Potential Dependent Special Relativity

The nature and origin of the photon and elementary rest masses are some of the challeng-ing problems that physics face. The approaches used to solve these problems are complex and time-consuming. Specifically, the photon rest mass pays attention to theoretical physi-cists. Many experimental works show that the photon rest mass is non zero. This problem can be solved using generalized potential dependent special relativity, which has been de-rived using simple arguments, and Maxwell’s equations, besides the conventional Einstein energy-momentum relation. The results obtained show that the rest mass of photons and elementary particles are strongly dependent on the vacuum energy and a universal con-stant. This result conforms with the models that predict time decaying vacuum energy as-sociated with production of smaller rest mass particles followed by larger masses. The two potential dependent mass expressions conform with the cosmological models that suggest the photon is generated first by assuming the universe consisting of total constant vacuum with decaying cosmological part and mass generating part. Using Maxwell’s equations, beside plank and De Broglie hypothesis together with special relativity energy-momentum relation the photon rest mass is estimated. It was shown that the photon rest mass is ex-tremely small compared to the electron mass.

Special Economic Zones——New growth points in China's economy

It was approved by the State Council in1984 to establish economic andtechnological development zones in 14coastal port cities to function as windows forthose cities to attract foreign investment,introduce advanced technology andmanagement methods and expand the export-oriented economy. Since 1992, 18 otherdevelopment zones have been approved bythe Council, increasing the number of suchzones to 32.

Yangzi Petrochemical Company—the First One in China to Adopt UOP's Novel Aromatics Adsorbent

The Yangzi Petrochemical Company is the first one among domestic aromatics manufacturers to adopt the UOP’s latest novel adsorbent during quality upgrading of its No.2 xylene unit.On October 23,2013 this unit has been continuously delivering xylene product with a purity