Aiming at the ineffectiveness of traditional wireless sensor networks reliability mechanism,this paper put forward a new ″ fountain codes″ codec algorithm.Through the theoretical analysis of fountain codes to ensure the feasibility of data transmission in wireless sensor networks,it gave the system scheme and model of concrete,and designed a wireless sensor networks coding and decoding algorithm based on fountain codes.For a relatively typical fountain codes,namely the raptor codes,in-depth exploration carried out that the reasonable parameters and algorithm can effectively improve the decoding success rate,ensuring the reliability of data transmission in wireless sensor networks.
Objective To ana ylze the characteristics of ad verse drug reaction ( ADR) from a terti-ary-A hospital in Nanjing in 2013,and ofer some information for rational drug use.Me thods 104 cases of effective ADR report in our hospital were analyzed statistically in respect of patients’ age,gender,route of administration, category of drug,organs or system, and the clinical mani-festation of the ADR.Results Among 104 cases of ADR, aged over 60 years accounted for 43.27%,84.61%were induced by intravenous dripping injection.The main clinical manifesta-tions of ADR were lesions of skin and its appendages in 53.33%, 43.94%were abductived by anti-infective drugs.Conclusion It is important to strengthen ADR monitoring and ensure pa-tients safe,rational and ecnomical medication.
Objective To compare anesthesia effect of small dose Bupivacaine combined spinal epidural anesthesia and Ropivacaine epidural anesthesia on elderly patients.Methods 84 elderly patients undergoing selective operation between April,2013 and April,2014 in our hospital were selected as the research object.84 cases were divided into observation group and control group by using stochastic way,42 cases in each group.The control group received the surgery under Ropivacaine epidural anesthesia and the observation group was for small dose Bupivacaine combined spinal epidural anesthesia.The anesthesia effect time,maximum movement degree,intraoperative blood pressure changes and adverse reactions in the two groups were compared.Results The anesthesia effect in both groups was good,but anesthesia effect time of the observation group was obviously shorter than that of the control group.The biggest sports block score Bromage was significantly higher than that of the control group( P0.05) with statistical significance.The adverse reaction of intraoperative and postoperative time in the observation group was obviously lower than that of the control group( P 0.05) with statistical significance. Conclusion The small dose Bupivacaine combined spinal epidural anesthesia for elderly patients has good anesthesia effect and faster anesthesia effect.The application of low doses of narcotic can significantly reduce the intraoperative and postoperative adverse reactions.It is a safe and effective way of anesthesia.
Objective To investiagate the characteristics and advantages of CO2 laser surgery in the treatment of vocal cord leukoplakia by comparing the difference of CO2 laser surgery and traditional vocal mucosa stripped. Methods CO2 laser surgery and traditional vocal mucosa stripped were used to treat 60 vocal cords leukoplakia patients through a randomized controlled trials. The postoperative efficacy,total effective rate,voice indexes and the recurrence rate were analyzed by SPSS. Results The results showed that there was no significant difference on the total effective rate and recurrence between CO2 laser surgery and traditional vocal mucosa stripped( P0. 05). However,the voice index showed that CO2 laser surgery patients recovered earlier. Conclusion CO2 laser surgery is a better way to treat vocal cord leukoplakia with high safety coefficient and few side effects.
As the working environment of the farm transport vehicle is complex,brake failure easily appears when the road condition becomes sandy and wading.For this reason,the traditional pneumatic or hydraulic brake system of the farm transport vehicles should be refit,and electromagnetic brake system will be feasible.According to Maxwellu0027s equations and braking torque system structure,the brake torque formula is deduced,magnetic field analysis is carried out through applying the software Ansoft Maxwell 2D/3D.The results show that the braking torque(Tb) generated by electromagnetic braking system is 242N.m,the brake system can be used for the farm transport vehicles,whose total weight is between 2 ton and 3 ton,it can effectively function as auxiliary brake.
Objective To study the clinical effects of waist hard joint anesthesia on elderly patients with lower limb fracture surgery. Methods 106 elderly patients under the lower limb fracture surgery between January and September 2013,who were willing to participate in the test and divided into control group and observation group,53 cases in each group. The control group was treated by epidural block anesthesia surgery,but the observation group was for waist hard joint anesthesia.The signs parameters,bleeding,statistical work time,anesthesia satisfaction and auxiliary dosage anesthesia were recorded. Results The intraoperative blood loss was not significantly different in both groups,but the intraoperative hypotension and hypertension incidence in the observation group was obviously lower than that in the control group. The muscle relaxation degree of the observation group was obviously higher than that of the control group( P 0.05).The anesthesia work time,anesthesia satisfaction and auxiliary dosage anesthesia in the observation group were better than those in the control group( P0.05).Conclusions The waist hard joint anesthesia which was for the elderly patients with lower limb fracture surgery can obtain the ideal anesthesia effect,a lower incidence of adverse reactions,faster anesthesia working and higher anesthesia satisfaction. It was suitable for elderly patients with poorer anesthesia tolerance.
Objective To explore clinical effects of different doses of compound Dezocine with Ropivacaine on brachial plexus block.Methods 136 cases with upper limb surgery between Octo-ber,2013 and October,2014 in our hospital patients were selected as the research object.136 cases were divided into control group, low dose group, medium dose group and high dose group by using stochastic way,34 cases in each group.The patients were under the interscalene brachial plexus block ( ISBPB ) with ultrasound.The control group was injected with 20 mL 0.375%Ropivacaine hydrochloride, and the low, medium and high dose groups were respec-tively for 0.05 mg/kg,0.10 mg/kg,and 0.15 mg/kg Dezocine compound with 20 mL 0.375%Ropi-vacaine hydrochloride.The anesthesia effects and adverse reactions of the four groups were compared.Results The anesthesia effect time of the medium and high dose group was obviously shorter than that of the control and low dose group.There was no significant difference be-tween low dose group and control group ( P>0.05) without statistical significance.The sedation time and effect of the low,medium and high dose group were higher than those of the control group ( P<0.05) .The adverse reaction of the high dose group was obviously higher than that of the low and medium dose group ( P<0.05) with statistical significance.Conclusions The com-pound Dezocine with Ropivacaine has better sedation effect over a much longer time and shor-ter anesthesia effect time than Ropivacaine.The dose of 0.10 kg/mL Dezocine with Ropivacaine should be recommended because of low adverse reaction and good sedative effect.
This experiment used Nasturtium officinale as testing material,extracting polysaccharide under the conditions of different temperatures and solid-liquid ratios for several times,and with different extraction times.First a single-factor test,then an optimized orthogonal test of four factors and three levels,were carried out.Results showed that: there were obvious changes in the percent of extraction of polysaccharide when the extracting times and the extracting temperature of the extracting fluids were adjusted(P 0.01),the extracting time also show significance on acquisition rate(P 0.05),but effects of different solid-liquid ratios on it are not obvious.Therefore,the optimal conditions for extraction polysaccharide from Nasturtium officinale were: extracting temperature 60℃,3 times of extraction,the extraction ratio of Nasturtium officinale to extract being 1∶ 25,and 2 hours of extracting time.This study can provide technical support for deep processing and comprehensive utilization of Nasturtium officinale.
Objective To compare the effects of RuiFentanyl and Fentanyl on cognitive functions-for elderly patients after surgery.Methods 84 cases undergoing non-cardiac selective operation between January,2013 and October, 2014 in our hospital were selected as the research object. The patients received surgery under general anesthesia and were randomly divided into RuiFen-tanyl group and Fentanyl group.The RuiFentanyl group adopted the target controlled injection with Rui Fentanyl with propofol and the Fentanyl group was for Fentanyl with propofol.The postoperative eye-open time, extubation time and language awakening and response time were compared in the two groups.The simple mental state survey scale ( MMSE) was used to evaluate cognitive situation of the two groups at 6 h before operation and 2 h,4 h and 6 h after operation.Results The eye-open time, extubation time and language awakening and response time in the RuiFentanyl group were much shorter than those in the Fentanyl group ( P<0.05 ) and had statistical difference.The MMSE scores of the two groups on 2 h after operation signifi-cantly reduced than before,but the MMSE scores of the RuiFentanyl group at 2 h,4 h and 6 h af-ter operation were higher than those of the Fentanyl group ( P>0.05) and had great statistical significance.Conclusions The RuiFentanyl and Fentanyl can cause postoperative cognitive dys-function for elderly patients, but the RuiFentanyl has weaker effects than the Fentanyl group. The postoperative open-eye time and revival time were shorter.
Objective To investigate the clinical features,diagnostic and treatment methods of gastrointestinal heterotopic pancreas( HP).Methods The clinical data in 33 cases of gastrointestinal HP were retrospectively analyzed.HP was solitary in all patients. Thirteen cases were located in the stomach,12 in the duodenum,6 in the jejunum and two in the ileum intestine. All of the patients were taken CT or gastroscope before operation,10 cases were definitely diagnosed,14 cases were misdiagnosed,9 cases were unexpectedly found during other abdominal operation.4 cases received microinvasive operation,while 29 cases received surgical operation.Results The symptom of the 33 patients was alleviated after operation without any related complications occurred. The follow up for 4 ~ 64 months showed that there was no recurrence and the clinical outcome was good.Conclusion Heterotopic pancreas is often a lack of typical clinical manifestation,misdiagnosis and missed diagnosis can happen easily.The treatment method is depended on the symptom of the patient,the location,size,and the grade of the lesion.
Objective To establish a high performance liquid chromatography( HPLC) method for the determination of mizoribine in human plasma. Methods Plasma samples were treated by protein precipitation with 10% trichloroacetic acid. Chromatographic separation was achieved on the column of Phenomenex Luna NH2( 250 mm×4. 6 mm,5 μm). The mobile phase consisted of acetonitrile and 0. 3% glacial acetic acid aqueous solution( 30 ∶ 70,V / V) at a flow rate of 1. 0 m L / min. The detection wavelength was 280 nm and the column temperature was 30℃. Results The linear range of mizoribine was 0. 1-10. 0 μg / m L( r=0. 9999). The relative and objective recovery of low,middle and high concentrations was( 96. 1±3.09) %,( 98. 4 ±4. 1) %,( 101. 2 ±1. 5) % and( 94. 3 ±2. 2) %,( 92. 8 ±2. 7) %,( 95. 5 ±1. 6) % respectively. RSDs of inter-day and intra-day precision were all less than 6%. Conclusion This method is simple,rapid and accurate and may be applied in the routine therapeutic drug monitoring for mizoribine.
Generalized diagonally dominant matrix plays an important role in many applications.In this paper,some sufficient conditions have been proposed for identifying generalized diagonally dominant matrices,which extend and improve some related results.A numerical example is used to show the advantages of the results.
In order to meet the development need of low-carbon tourist attraction and reveal its impact factors,a comprehensive evaluation model was proposed by using analytic hierarchy process based on certain principles.The model includes the construction target(level of low-carbonization of tourist attraction),construction criterion(resource of low-carbon tourist attraction,facilities environment of low-carbon tourist attraction,operation of low-carbon tourist attraction,management of low-carbon tourist attraction),index part(23 indicators),and has the weight of each index and grade interval.The evaluation model quantitatively reflectd the level of low-carbonization of Chizhou Jiuhua Tianchi tourist attraction.The evaluation results provide a scientific basis for strengthening the construction of low-carbonization tourist attraction and achieving sustainable development.
From the fluvial geomorphology, gorge terrain, meandering riverbed split point, forming water-falls and potholes, and stepped waterfall,accumulation landform this paper analyzes and studies the effect of neotectonic movement on the geological heritage landscape of Guanshan National Geopark of Henan Province,which provides a referrence to the protection and exploitation of geological heritage landscape.
To make up for the drawbacks of general relations of rough set model,we introduce error pa-rameter α( 0≤α<0.5) and define the generalized variable precision rough set model based on the majori-ty of inclusion relation.The properties of αupper and lower approximation operators are discussed in the model.Meanwhile,if |RP(x)|· α=k,it is the degraded rough set model.Finally,examples are given to show that this model can be applied to data mining.
Using the sequence of upper bound for inverse elements of strictly diagonally dominant M-matrix,we obtain the upper bound of the convergence of a sequence of ‖A-1‖∞,and the convergence of the sequence of lower bounds of q(A).These new sequences have improved the results of existing research on this kind of problems.
Objective To study the effects of individual health education on life quality and self-efficacy sense of liver cancer patients treated with transcatheter hepatic arterial chemoemboli-zation ( TACE) .Methods 126 liver cancer patients of TACE were randomly divided into interven-tion group and control group, 63 cases in each group.The control group received the routine nursing method,but the intervention group received the individual health education on the basis of the routine nursing method.The intervention group was given ace-to-face instruction by nur-ses on admission, before operation, after operation and before hospital discharge.The general circumstance questionnaire,quality of life instruments for cancer patient ( OLICP) ,general self-efficacy scale ( GSES, Chinese Version) and the compliance behavior scale questionnaire sur-vey were carried on the intervention group.The PSS17.0 software was used for statistical analy-sis.Results The GPH,GPS,GSO,GSS and total scores of the intervention group were signifi-cantly higher than those before the intervention.After the intervention,the GSO and GPS scores of the intervention group were significantly higher than those of the control group ( P<0.05) .The scores of GSES and the compliance behavior of the two groups were significantly higher than those before intervention ( P<0.05) .The scores of GSES and the compliance behavior were sig-nificantly higher than those of the control group ( P<0.05) .Conclusion The individual health edu-cation can enhance the daily acts of self -management of liver cancer patients,maintain the in-sistence on the health behaviors and self-confidence for the disease and improve the self-effi-cacy sense and the compliance behavior and life quality of patients after operation.
Based on the classical rough set,graded rough sets and graded boundary operator are defined.The properties of graded rough sets model to study is different from the classical rough set model.In graded rough sets,the graded boundary operator is used to revise the inclusion relations as equal relations and the conclusion is strictly proved,which conplements and inproves the rough set theory.
Objective To investigate the efficacy and safety of Albuterol combined with Budesonide in treatment of acute exacerbation phase of chronic obstructive pulmonary. Methods A total of 70 patients with AECOPD were selected and divided randomly into two groups: a treatment group and a control group. The treatment group received Albuterol combined with Budesonide( n = 35) for one week,while the control group received conventional treatment( n = 35) alone for the same duration,respectively and follow-up of 1 to 2 weeks,and to observe the total effective rate of two groups of patients before and after the treatment,the CAT scores,p H,Pa O2,Pa CO2,FEV1/ FVC,and FEV1/ FVC,FEV1 of the expected target. Results The levels of lung function indexes,blood gas analysis index and adverse drug reactions before and after treatment were compared between groups improved obviously after treatment( P 0. 05).The response rates were 91. 43% and 51. 43% in treatment group and the control groups respectively.There were significant differences between the two groups in improvement of clinical symptoms( P 0.05). Conclusion The treatment of Albuterol combined with Budesonide has good treatment effects in treatment of acute exacerbation phase of chronic obstructive pulmonary without adverse reaction. It is worthy of clinical application.
The set of number of elements of the same order in a group is called the same-order type.In this paper we discuss the groups of the same-order type { 1,2,22,...,2m} and obtain the classification of this structure.
