This paper investigates the impact of uncertainty tone in a firm's annual report on stock price informativeness. We show that firms with higher proportion words 10-Ks have lower idiosyncratic risk. Our results suggest financial disclosures information deteriorates its While dispersion amplifies relation between and firm-specific risk, use causation discrepancy attenuates this effect. Furthermore, external oversight mechanisms including analysts following, institutional holdings, audit...

Emergency material reserve and dispatching are important measures to reduce casualties property losses after natural disasters occur. However, there has not yet been research that optimizes both the distribution of emergency materials together. This paper investigates joint optimization for multivariety materials. Considering timeliness, economy, safety rescue, a multiobjective model established, with targets minimizing total delay time, cost, maximizing number safely delivered. Given...

In this paper, we study the fixed charge transportation problem with uncertain variables. The has two kinds of costs: direct cost and charge. is associated each source-destination pair, occurs when activity takes place in corresponding pair. modeled on basis uncertainty theory. According to inverse distribution, model can be transformed into a deterministic form. Finally, order solve problem, numerical example given show application algorithm.

The 500 kV oil-filled ac submarine cables in the networking project of China's southern coast are large capacity, ultrahigh-voltage cross-sea power cables, which 31 km long and bundled with optical cables. Temperature monitoring on is great significance controlling ampacity ensuring operational reliability. Referring to cables' structural characteristics setting conditions, a temperature system established based Brillouin time-domain analysis (BOTDA) distributed fiber sensing technology....

Abstract While Internet credit services are proliferating fast, they bring serious debt problems, especially to young adults, and further result in negative psychological social issues. The present study aims investigate the influential factors underlying usage of among adults. Particularly, a dual‐process model is proposed by integrating both reflective impulsive decision‐making process. process modelled based on theory planned behaviour, manifested examining antecedents impulse use...

Drawing upon a social media perspective, this study explores the phenomenon of opportunistic behaviour in supply chain finance (SCF). Based on research into factors that drive context SCF and associated effects, conceptualises empirically examines model by leveraging data related to 'Noah event'. The was collected from Sina Weibo, biggest Chinese microblog platform. A text mining approach utilising Python programming R technique employed for analysis. results reveal interesting findings....

The 500 kV oil-filled AC submarine cable in Hainan Networking System is the first large capacity, ultra-high voltage cross-sea power China, which 31 kilometers long and bundled with a optical cable. And temperature monitoring on of great significance to control current rating ensure operation reliability. Based structural characteristics setting condition this cable, system established paper based Brillouin time-domain analysis (BOTDA) technology. In system, used monitor surface, an...

Smart grid distribution network consist of power supply cables and two-way communication between the customer which is carried out by Optical Fiber Composite Low-Voltage Cable (OPLC). The concept OPLC to merge access together so that one cable can connect customers smart through a meter, create an interactive environment with for better implementation demand side management, internet scheduling load in peak hours. (OPLC) modeled COMSOL Multiphysics simulation software. A 3-dimensional model...

Optical fiber composite low voltage cable (OPLC) is an optimized way of carrying out the function supplying electrical power and communication signals in a single cable. In this paper, temperature stress distribution OPLC analyzed by using finite element method as current increases to maximum capacity. The increase are two main factors that affect additional attenuation optical fiber. This can be reduced selecting optimal heat resistant layer for unit limits at analysis carried three...

Abstract Mercury and its compounds possess strong neurotoxicity patients with mercury poisoning often report pain numbness in the distal extremities that conform to “stocking–glove” pattern. However, no study has investigated whether damage small nerve fibers is associated poisoning. The aims of present were evaluate effects different doses chloride (HgCl 2 ) on intraepidermal density (IENFD) Langerhans cells (LCs) plantar skin rats assess possible relationship between changes IENFD sensory...

Abstract Hybrid carbon fiber reinforced plastic (CFRP) and steel bar reinforcement concrete were applied in a transfer beam. Three specimens (ZHL-2, ZHL-3, ZHL-4) corresponded to different forms of reinforcement, ratio, root number, respectively. The pseudo static test the three was carried out under condition vertical loading horizontal reversed cyclic loading. flexural property failure mode beams demonstrated. Further, ductility, energy dissipation capability, hysteretic characteristics,...

In Power systems the smart grids are taking place of traditional grids. The main aspect grid is two way communication between power and consumer. This can be carried out by a single cable having conductors optical fiber in OPLC cable. this paper, we worked on performance analysis when stranded together with phase as stress generated increase temperature causes microbending fiber. G.652.D G.657.A2 analyzed using teeth connector experimental setup to experimentally scrutinize attenuation loss...

The control structure faces the impact vibrational state has instantaneity and unpredictability, vibration magnitude duration wide range change, therefore systems design must grasp two key questions: One, analyzes according to unique feature experience attacks carry on graduation; Two, different choice appropriate controlled variable. This article through circuit requests of MR damper analysis, determined controller circuitry. Through sensor signal recuperation electric circuit, monolithic...

The 500kV submarine cable route of Hainan Networking System starts from Nanling Village, Jiaowei Township, Xuwen County, Zhanjiang City, Guangdong Province. It crosses the Qiongzhou Strait to Linshi Qiaotou Town, Chengmai AC Submarine Cable is first ultra-high voltage, large capacity and long-distance cross-sea networking power in China. 31 km. In this article, there are three main parts. part introduces status monitoring BOTDA test principle. second design a calibration experiment calibrate...

Smart Grid distribution network consist of power supply cable as well two way communication between the customer and grid. This is carried out by Optical Fiber composite low voltage (OPLC). OPLC product Sate Corporation China. As three phase current flow in conductors cause temperature to rise cable. affects light single mode optical fiber causing attenuation loss. In this paper we have analyzed loss due The G.652.D at range from -30 °C 100 °C. We used source (Fiberlabs) transmit an input,...

Solid insulation in gas insulated switchgear (GIS), like the basin insulator, is vital for supporting high-voltage conductors, isolating GIS compartments, and providing ground insulation. Multi-factor accelerated aging tests play a crucial role evaluating solid condition predicting its lifetime. Yet, there's less research on mechanical stress-induced compared to electrical thermal stress, even fewer studies their combined effects. Intending achieve more precise assessment of status lifetime...

Gas insulated switchgear (GIS) is increasingly developing toward high voltage and large capacity. During the operation of GIS, epoxy insulation components gradually age due to multiple issues electricity, heat, various environmental factors. Insulator aging reduces electrical strength mechanical insulators further leads GIS failure, therefore it becomes a crucial issue for with long running time, which determines operating life GIS. Thus, assessment an important work ensure safety...

Optical fiber composite low voltage cable (OPLC) is an optimal way of connecting the smart grid with load. In this paper, field distribution temperature and stress simulated by applying finite element method. At overload condition, unit’s rises to 59°C that generates strain 387 µε. This together result in additional attenuation 0.053 dB/km optical fiber. Temperature are termed as major contributing factors towards caused 16.03% while 80.56% total loss.

The rubber conversion track wheel compare with the tyre has adhesive performance well, traction force big, well stability, compares steel caterpillar band chassis noise slightly, quality light, road surface non-damage merits.It can solve wheeled vehicle question which in soft wet slippery location work ability drops. Based on loader design analysis results, carried overall concept to wheel.This plan uses middle brace structure, absorption of shock stretching device, solved problem bearing...

Optimization is getting over all the aspects of world. In Power systems, smart grids are taking place traditional grids. The main aspect grid two-way communication between power and consumer. Optical fiber composite low voltage cable (OPLC) a way to combine electricity transmission with optical communication. this paper temperature rise in OPLC its effect on unit being analyzed. We make setup experimentally analyze used measure attenuation loss at different temperatures from 0 °C 100 °C....

The thesis researched the relationship between green design and reconfigurable on NC machine tool, expatiated that development of tools is essential. This article has carried analysis from deep hole components classification formed movement craft two aspects to race. tool was carry modular based for module partition reconstructable analyze, solved key technologies modulation design. From bed module, head cutting auxiliary system numerical control four aspects, research difficult problem...

Based on field investigation of random fractured rock mass, the sample parameters are put to statistical analysis, and 2-D fracture network model is established with probability-statistics theory Monte-Carlo simulation technique. Finally, formed, which gain distributed regularity in sense, important meaning describe geometrical characteristics.

Based on the assumption of plane section, ideal elastic-plastic model steel and constitutive relations concrete in Chinese Code for Design Concrete Structures, numerical method is used to analyze relationship axial force-moment-curvature RC section. After dividing normal section into strips, we adopt secant stiffness iteration (according results each iteration, modify through changing elastic modulus materials) compile computer program. The paper show a good agreement with those analytical...

For the problems such as layering and splitting of traditional sandwich structure composite, a resin matrix composite with lattice interface reinforced has been designed, The material high specific strength stiffness. On this basis, road pavement developed by used in engineer urgent was designed. connection between pavements designed for quick assembling, which could make assemble operation simple, fast reliable. Experiments application indicate that characters low cost, simple maintenance,...