bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of gray level mapping in computed tomographic colonography: a pilot study to compare with traditional surface rendering method for identification and differentiation of endoluminal lesions
Authors: Chen Lih-Shyang , Hsu Ta-Wen , Chen Shao-Jer , Chang Shu-Han , Lin Chih-Wen , Chen Yu-Ruei , Hsieh Chin-Chiang , Han Shu-Chen , Chang Ku-Yaw , Hou Chun-Ju
Published: December 2016

Objective:

In traditional surface rendering (SR) computed tomographic endoscopy, only the shape of endoluminal lesion is depicted without gray-level information unless the volume rendering technique is used. However, volume rendering technique is relatively slow and complex in terms of computation time and parameter setting. We use computed tomographic colonography (CTC) images as examples and report a new visualization technique by three-dimensional gray level mapping (GM) to better identify and differentiate endoluminal lesions.

Methods:

There are 33 various endoluminal cases from 30 patients evaluated in this clinical study. These cases were segmented using gray-level threshold. The marching cube algorithm was used to detect isosurfaces in volumetric data sets. GM is applied using the surface gray level of CTC. Radiologists conducted the clinical evaluation of the SR and GM images. The Wilcoxon signed-rank test was used for data analysis.

Results:

Clinical evaluation confirms GM is significantly superior to SR in terms of gray-level pattern and spatial shape presentation of endoluminal cases (p < 0.01) and improves the confidence of identification and clinical classification of endoluminal lesions significantly (p < 0.01). The specificity and diagnostic accuracy of GM is significantly better than those of SR in diagnostic performance evaluation (p < 0.01).

Conclusion:

GM can reduce confusion in three-dimensional CTC and well correlate CTC with sectional images by the location as well as gray-level value. Hence, GM increases identification and differentiation of endoluminal lesions, and facilitates diagnostic process.

Advances in knowledge:

GM significantly improves the traditional SR method by providing reliable gray-level information for the surface points and is helpful in identification and differentiation of endoluminal lesions according to their shape and density.
Complications of pulmonary hypertension: a pictorial review
Authors: Mak Sze M , Strickland Nicola , Gopalan Deepa
Published: December 2016

Pulmonary hypertension (PH) is a rare disease with a significant morbidity and mortality if untreated. The disease has a multifactorial aetiology and is often associated with insidious onset of signs and symptoms. Multimodality imaging is often required for establishing the diagnosis, evaluating the underlying haemodynamic compromise and follow-up after institution of therapy. The range of potential complications associated with PH vary widely. We aimed to summarize the imaging findings of complications that the radiologist should be familiar with.
Pseudoasterophyllites cretaceusfrom the Cenomanian (Cretaceous) of the Czech Republic: A possible link between Chloranthaceae andCeratophyllum
Authors: Kvaček Jiří , Doyle James A. , Endress Peter K. , Daviero-Gomez Véronique , Gomez Bernard , Tekleva Maria
Published: December 2016

Pseudoasterophyllites cretaceus from the Cenomanian of Bohemia was recently recognized as an angiosperm by association with stamens containing monosulcate pollen of the Tucanopollis type. New material indicates that the stamens were borne in short spikes, with each stamen subtended by a bract, whereas the carpels were solitary and contained a single pendent, orthotropous ovule. We have investigated the phylogenetic position of Pseudoasterophyllites by including it in a morphological analysis of extant angiosperms using backbone constraint trees that represent the current range of hypotheses on relationships of the five mesangiosperm clades. With a backbone tree in which Chloranthaceae are linked with magnoliids and Ceratophyllum with eudicots, the most parsimonious position of Pseudoasterophyllites is sister to Chloranthaceae, but a sister‐group relationship to Ceratophyllum is only one step less parsimonious. With a backbone tree in which Chloranthaceae and Ceratophyllum form a clade, Pseudoasterophyllites is sister to Ceratophyllum, based on derived features shared with both Chloranthaceae and Ceratophyllum plus solitary female flowers (as in Ceratophyllum). Similar results are obtained when Pseudoasterophyllites is added to the analysis with other fossils inferred to be related to Chloranthaceae and/or Ceratophyllum. If the plants that produced Tucanopollis pollen in the Barremian‐Aptian of Africa–South America are related to Pseudoasterophyllites, these results suggest that Chloranthaceae and Ceratophyllum are relicts of one of the most important early radiations of angiosperms, which included not only colonizers of disturbed terrestrial habitats but also halophytes and aquatics.
Calculating a point on the parametric surface closest to the specified point for the tasks of geometrical shape control.
Authors: Николаев Прокопий , Nikolaev Prokopiy
Published: December 2016

An algorithm for the calculation of a point on the parametric surface closest to a given point is presented. The algorithmic based on an iterative cycle. As an initial approximation the surface scanning with a defined step is used. To optimizes canning the dimensional checks is proposed to use.
Periodic solutions of a quasilinear wave equations with variable coefficients.
Authors: Рудаков Игорь , Rudakov Igor , Лукавый Алексей , Lukavyy Aleksey
Published: December 2016

We prove existence theorem for periodic in time solutions of quasilinear wave level of variable coefficients and homogeneous boundary conditions, one of which is a Neumann condition.
Manufacturing Execution Systems - a Tool of Effective control of machine-building manufacturing.
Authors: Васильев Игорь , Vasilev Igor , Фролов Евгений , Frolov Evgeniy
Published: December 2016

The practice of applying the Russian MES-system at machine-building enterprises is described in this article.
The modus-ns technology in development of highly reliable and great vitality control systems for technical objects.
Authors: Кабак Илья , Kabak Ilya , Соломенцев Юрий , Solomentsev Yuriy , Шептунов Сергей , Sheptunov Sergey , Суханова Наталия , Sukhanova Nataliya
Published: December 2016

In article the way of creation of highly reliable and great vitality systems, including control sys-tems of complex technical objects in conditions when repair and replacement of their components are essentially impossible is considered.
Effective system of scientific research is the most important component of technology environment of university for training engineering personnel.
Authors: Яхутлов Мартин , Yakhutlov Martin , Батыров Умар , Batyrov Umar , Шептунов Сергей , Sheptunov Sergey
Published: December 2016

Shows an analysis of condition and allocated the main problems of domestic mechanical engi-neering. Were suggested some ways solution of the problem engineering personnel training for modern mechanical engineering. Also noted that carrying out in the university the systemic scientific research works is a requirement for training of qualified personnel
Automation of technological preparation of small-scale foundry products for small engineering companies based on innovative technologies layering synthesis.
Authors: Аверченков Андрей , Averchenkov Andrey , Заблоцкая Екатерина , Zablotskaya Ekaterina
Published: December 2016

It considers typical design process of casting tooling for the production of various different kinds of serial and casting materials. It shows the effectiveness of the joint application of virtual simulation systems and additive technologies. The possibility of using additive technologies to develop new low-cost methods of preparation of low-melting foundry tooling and composite materials.
Development process of assisted filtered cathodic-vacuum-arc deposition (AFCVAD).
Authors: Верещака Алексей , Vereshchaka Aleksey
Published: December 2016

Developed a process of assisted filtered cathodic-vacuum-arc deposition (AFCVAD). We used a special emitter (implantor) to generate Cr, Mo ions with high energy. Such key parameters of coatings as composition, structure, a thickness, hardness, adhesion in relation to a substrate obtained at various energy of chrome ions have been studied. A phenomenological (physical) model of assisted filtered cathodic-vacuum-arc deposition (AFCVAD), allows to predict the properties of the coatings formed on the basis of binary compounds as a function of the relationship Ra, characterizing parameters of ion implantation.
Development of a design tool for the anode-mechanical honing holes.
Authors: Рыгин Р. , Rygin R. , Нечаев Дмитрий , Nechaev Dmitriy , Куликов Михаил , Kulikov Mikhail , Иноземцев В. , Inozemtsev V.
Published: December 2016

This article discusses the design khon providing efficiency anode-mechanical precision honing holes, ways to improve productivity and quality of machined surfaces for honing holes.
Management tool wear and performance of technological process parameters of spark erosion machining.
Authors: Съянов Сергей , Syanov Sergey , Федонин Олег , Fedonin Oleg , Фомченкова Надежда , Fomchenkova Nadezhda
Published: December 2016

The factors that have a major influence on the wear of the electrode tool and the productivity process in EDM processing. Based on this theoretical and empirical dependence relationship of volumetric wear of the tool and process performance with the technological parameters of processing that allows controlling the wear and performance with the help of technological pa-rameters of processing.
Control of traction and braking hybrid shunting locomotive with asynchronous traction motors.
Authors: Ковалев Роман , Kovalev Roman , Тарасов Алексей , Tarasov Aleksey , Федяева Галина , Fedyaeva Galina , Сморудова Татьяна , Smorudova Tatyana
Published: December 2016

Principles of the management system asynchronous traction drive hybrid shunting locomotive at the limit of adhesion of the wheels and rails in modes of traction and electrical braking and procedures for the development of complex Electromechanical model of the locomotive, the results of the simulation of the dynamics of the acceleration of the locomotive when the realization of the ultimate traction.
. Investigation of temperature stresses in the instrumental diamond-containing composite.
Authors: Яхутлов Мартин , Yakhutlov Martin , Деунежев Залим , Deunezhev Zalim , Карданова Марианна , Kardanova Marianna , Батыров Умар , Batyrov Umar , Гутов Астемир , Gutov Astemir
Published: December 2016

By numerical simulations, investigated the temperature stresses in the diamond-containing composite on a polymeric binder. It is shown that the maximum stresses intensity occurs in the layer of matrix that has contact with the grain. It was investigated the influence on the temperature stresses in the system thermal conductivity of matrix and the coating material on the grain.
The effect of continuing education on practical wound management
Authors: Allison J.
Published: December 2016

A three-day continuing education programme in wound management was evaluated to determine its success in changing clinical practice. Twenty-six registered nurses from various disciplines were asked to complete three questionnaires, two during the course and one retrospectively. All but two of the nurses participated in the survey. The findings demonstrated that theory made a significant difference to practice. However, ongoing education programmes and ward-based support are necessary to ensure that the knowledge gained continues to be applied in the practice setting
A strategy for helping a child with burn injuries to cope with reconstructive surgery
Authors: Martin V.
Published: December 2016

An account of the method used to minimise trauma in a young child undergoing tissue expansion
From the Journals
Authors: Lawrence J.C. , Benbow M. , Culley F.
Published: December 2016

Surgical wound infection

Epidermolysis bullosa

Pressure area care
Community clinics for leg ulcers: Critique II
Authors: Bale S.
Published: December 2016

Since its publication, this paper has been referred to frequently. It has formed the basis for the setting up of leg ulcer clinics in the community, the principles of patient assessment, and the use of four-layer bandages as the first-line treatment for patients with venous and mixed disease. The figure most frequently quoted is 69% healing at 12 weeks and 83% at 24 weeks. This study also contains a great deal of other valuable information.
The management of venous ulcers - the medical and surgical options
Authors: Leaper DJ.
Published: December 2016

An overview, from a surgical perspective, of the treatments available for the most beneficial management of patients with venous ulceration of the legs
Caring for cancerous wounds in the community
Authors: Carville K.
Published: December 2016

An account of the management of a fungating sacral tumour
Microbiology and immunology in patients with leg ulcers
Authors: Hayes M. , Gill C.
Published: December 2016

Aspects of the bacteriological and immunological status of patients with leg ulcers who also need podiatric treatment have been examined. Qualitative and quantitative bacteriological analyses of 52 patients have provided values for the numbers and types of bacteria present. A simple survey of the immunological status of 11 of the patients was also undertaken. The results of the bacteriological survey are consistent with those of other workers, while the results of the immunological studies are sufficiently heterogeneous to warrant a further dedicated study of a longitudinal nature. Because of the numbers of bacteria isolated, the range of bacterial species identified and uncertainties about the immunological status of the patients and others attending multi-clinic sites, it is suggested that in order to safeguard all patients, personnel and the immediate environment, clearly defined special procedures for infection control should be in place
Wound healing problems in haemophilia
Authors: Sutherland M.A.
Published: December 2016

A report describing the management of a cavity wound in a patient with haemophilia
Hyperbaric oxygen therapy
Authors: Donlin N.j. , Bowszyc-Dmochowska P.J.
Published: December 2016

A guide to the role of hyperbaric oxygen therapy in the management of selected problem wounds
The prevalence of pressure sores in four European countries
Authors: O'Dea K.
Published: December 2016

A report of the results of a one-year survey of pressure damage in hospital patients in the Netherlands, Italy, Germany and the UK
Letters
Authors: Neal Mark S. , Bums Ann , Grocott Patricia
Published: December 2016

CLINICAL NURSE SPECIALISTS

DEBRIDEMENT OF CANCEROUS WOUNDS
The palliative management of fungating malignant wounds
Authors: Grocott P.
Published: December 2016

A review of the current ‘state of the art’ in the management of fungating malignant wounds
Treatment of hypertrophic and keloid scars
Authors: Munro K.J.G.
Published: December 2016

Hypertrophic scars and keloids were described in the March issue of JWC. In this second article, the author reviews treatment methods
The efficacy of a hydrogel in the treatment of wounds with non-viable tissue
Authors: Flanagan M.
Published: December 2016

A report of a multicentre clinical trial that assessed the efficacy of a hydrogel in wound debridement
Measuring wounds
Authors: Plassmann P.
Published: December 2016

A guide to the use of wound measurement techniques
From the Journals
Authors: Baragwanath P. , Salomon R.A. , Melhuish J.M. , Finnie Alison , Salomon R.A. , Hagelstein S.M.
Published: December 2016

The use of ultrasound therapy in treating pressure sores

Ischaemia and reperfusion injury in patients with intermittent claudication

Transcutaneous oxygen pressure and pressure sore development

Current practice in burn care

Use of MRS to monitor healing of leg ulcers

Effectiveness of a low air loss bed in treating pressure ulcers
Letters
Authors: Kerstein Mom's D. , Millard Dilys , Sedlank K.M. , Hartmann AG Paul , Wilson Louise , Van Rijswijk Lia
Published: December 2016

HYDROCOLLOID DRESSINGS IN BONE-GRAFTING PROCEDURES

LOCAL ADMINISTRATION OF INSULIN

ENVIRONMENTAL FACTORS IN WOUND HEALING
From the Journals
Authors: Orpin J.C , Shut/er S.D. , Salomon Judith , Moore K. , Lawrence J.C.
Published: December 2016

Venous leg ulcers and effects of aspirin therapy

The design of compression hosiery

A topical copper complex in treating leg ulcers

Therapeutic potential of LS-2616

Biofilm dressings and bacterial permeability
Maintaining quality of life for elderly patients in residential care
Authors: Hagelstein S. M. , Banks V.
Published: December 2016

A discussion of the problems of managing pressure sore prevention in the community
The levels of reliability and validity of the Waterlow pressure sore risk calculator
Authors: Edwards M.
Published: December 2016

The Waterlow pressure sore risk calculator is widely used in the UK but has not been found to display high levels of reliability and validity. Few evaluative studies have been carried out in the community. This study aimed to evaluate the Waterlow score when used by district nurses to assess elderly patients. The score was not found to display high levels of reliability, and suffered from a lack of operational definitions within risk categories. In line with other studies, it was found to over-predict pressure sore formation. The findings of this small study suggest that the Waterlow score should not be used as the sole basis for decisions concerning the use of pressure sore prevention resources. High Waterlow scores may be a predictor of ill health in elderly people and this hypothesis requires further examination. The findings also indicate that clarification of the role of risk calculators in general is needed, as many mediating factors appear to affect the ability of a tool to predict pressure sore formation.
Granulocyte monocyte-colony stimulating factor as an agent for wound healing
Authors: Arnold F. , O'Brien J. , Cherry G.
Published: December 2016

A study evaluating the use of local injections of a genetically engineered growth factor in the management of wounds with a poor healing prognosis
From the Journals
Authors: Moore K. , Hagelstein S.M. , Jones V. , Lawrence J.C.
Published: December 2016

Inflammatory skin disease and tumour necrosis factor-alpha

Surgical maggots for wound treatment

Older people and pressure sores

Chronic venous leg ulcers

Body temperature during dressing changes

Wound microbiology and infection
Diabetes mellitus in cats and the veterinary nurse's role
Authors: Scudder Christopher , Hazuchova Katarina , Gostelow Ruth , Niessen Stijn
Published: December 2016

Diabetes mellitus is a common endocrinopathy in cats with an increasing prevalence, likely reflecting the changes in nutrition and lifestyle of domestic cats. The management of the disease requires good communication between the owner of the diabetic cat and the veterinary team. This article discusses the causes and consequences of diabetes in cats, treatment options and role of the veterinary nurse in the management of the condition.
Yield and quality of ‘Italia’ grapes submitted to irrigation and fertilization control at the San Francisco Valley, Brazil
Authors: Pimenta Martins Andrade Victor Pimenta , Silva Dias Merideise Silva , Aliçandro Bezerra da Silva José Bezerra , Sebastião Costa de Sousa José Costa , Lima Simões Welson Lima
Published: December 2016

The aim of this research was to evaluate aspects related to flowering, fruiting and quality of ‘Italia’ grape produced under different irrigation and fertilization. The experiment was performed from October, 2014 to February, 2015, in a production area of 0.50 ha at IFSERTÃO-PE, in Petrolina-PE, Brazil. The experiment was carried out in a randomized blocks design, with a split block scheme, with four irrigation treatments (plots), four fertilizer treatments (subplots) and four repetitions. The plots consisted of the multiplying factors, 0.75 (L1); 1.00 (L2); 1.25 (L3) and 1.50 (L4), of the recommended crop coefficients (Kc) by Embrapa Semi-Arid for the ‘Italia’ grapevine. The subplots were composed by the factors 1.00 (AD1), 0.75 (AD2), 0.50 (AD3) and 0.25 (AD4) of the recommended fertilization with an BIOSON as organic product (commercial name). It was observed that the reduction in water depth provided greater number of buds per branch and a larger number of clusters per plant. The highest yields were obtained with lower irrigation depths and 50% and 65% of the recommended fertilization. The highest soluble solids of the fruit were achieved using the 75% of irrigation Kc and 25% of recommended mineral fertilization. The lower total acidity values were obtained with the Kc multiplication factors that were lower than 1.04 and higher than 1.22.
Integrated multivariate analysis to identify superior cowpea genotypes
Authors: Dos Santos Adriano , Ceccon Gessí , Davide Livia Maria Chamma , Luiz Neto Neto Antonio , Silva Juslei Figueiredo da , Alvares Rita De Cássia Félix
Published: December 2016

Genetic divergence among 40 cowpea genotypes was quantified by means of integrated multivariate analysis aiming to assist the selection and development of new cultivars. The experiment was carried out in randomized blocks design with 40 treatments and 4 repetitions. The multivariate techniques applied were partially concordant, following the same trend for clustering of genotypes. Directed crosses between the genotypes belonging to group I with group IV and VI will be able to lead to the creation of segregating families with high yield potential and an increase in probability of recovering individuals. The variables of hundred grain weight, average pod length and number of seeds per pod are the main determinants in quantification of the genetic divergence among cultivars.
Multivariate analysis of ‘bacuri’ reproductive and vegetative morphology
Authors: Souza Isis Gomes de Brito , Souza Valdomiro Aurélio Barbosa de , Silva Kaesel Jackson Damasceno e , Lima Paulo Sarmanho da Costa
Published: December 2016

The objective of this study was to characterize sixteen genotypes of P. insignis available in the Embrapa Meio-Norte germplasm collection (Teresina, Piauí, Brazil) with respect to 33 morphological traits relating to leaves, flowers, branches, fruits and seeds. Phenotypic variance among genotypes was estimated using the Mahalanobis distance technique and the unweighted pair group method with arithmetic mean analysis (UPGMA). The method of Singh (1981) was used to determine which of the traits contributed most to diversity within genotypes. The occurrence of phenotypic variability among P. insignis genotypes indicated that it would be possible to achieve positive gains with selection. The most distant genotypes were BGB 16 and BGB 48, while crosses between genotype BGB 48 and genotypes BGB 32 and BGB 56 offers the greatest potential as parental types for this fruit tree breeding programs . The flesh content, ovary and fruit length , ratio between fruit length and diameter were the characters that most contributed to diversity among the studied genotypes.
Agronomic characterization of forage grain crops
Authors: Silva Eranildo Brasil da , Carneiro Maria Socorro de Souza , Santiago Flávia Louzeiro de Aguiar , Edvan Ricardo Loiola , Bezerra Leilson Rocha , Pereira Elzânia Sales
Published: December 2016

The aim of this research was to accomplish agronomic and chemical composition of four forage species under the Brazilian semiarid conditions . The experimental design was a randomized block, in which the treatments consisted of forage crops: corn cv. BRS 205, millet cv. BRS 1501, sorghum cv. IPA 467-4-2 and sunflower cv. Catissol 01, with four repetitions. It was measured plant height (m2), number of plants, leaf/stem ratio, dry matter percentage, total dry matter and the chemical composition of different forage species. The sorghum showed a greater growth, reaching a height of 270.90 cm. For the leaf/stem ratio, the best results were observed by corn, followed by sunflower. In the chemical composition, the sunflower stood out compared to the other materials for crude protein, lipids and mineral contents. Sorghum present greater growth and mass production of straw for the Brazilian semi-arid conditions. The studied species have appropriate chemical composition characteristics, except for sunflower that has high ether extract contents.
Longevidade de hastes florais de Oncidium baueri mantidas em soluções conservantes
Authors: Favetta Vanessa , Colombo Ronan Carlos , Faria Ricardo Tadeu de
Published: December 2016

Orchids have been gaining prominence in the cut flower market due to the exoticism and the singular beauty of its flowers. However, techniques which help to keep the floral quality are needed, since the commercial success is tied to the flowers longevity after cut. Thus, the aim of this study was to evaluate preservative solutions on postharvest longevity of Oncidium baueri floral stems. Floral stems, with 60 cm of length and 90% of open flowers were submitted to pretreatment in a pulsing solution, sucrose-based, for 12 and 24 hours, and placed in maintenance solutions containing sucrose and/or Flower®; keeping the control treatment, with distilled water only. These solutions were added with 0.5% of sodium hypochlorite. The evaluation to verify the quality of the flowers was performed daily using a criterion of notes, ranging from 4 to 0. From third day of evaluation, the floral stems submitted to pretreatment with pulsing solution presented statistically lower averages and at the fourth day of evaluation were considered inadequate for marketing. Increased longevity and quality of the flowers can be obtained by keeping the floral stems in distilled water or in maintenance solutions, which are 1% sucrose-based.
Prostitution and Panhellenism in Aristophanes’ Peace
Authors: Sells Donald
Published: December 2016

While most contributions to this volume look at the religious life of actual objects, the present chapter examines religious life from the opposite perspective, the concretization of one institution of religious practice in ancient Greece, festival attendance, in the specific genre of Old Comedy. In his comedy Peace (421 BCE), Aristophanes represents the graphic sexual objectification of Theôria (Festival), one of two personified attendants accompanying the goddess Peace, whose return initiates a new golden age in Greece. By implicitly characterizing Theôria as a prostitute, i.e., as an occasional, sexually available, and fungible object for the enjoyment of festival attendees, the comedy reestablishes the subjectivity of a nominally male Athenian audience whose opportunities to enjoy publicly funded and culturally affirmative religious festivals were radically curtailed by a decade of brutal war. With an embodied Theôria, Aristophanes evokes for his audience the longed-for pleasures of the festival circuit now made permanent in the glorious postwar utopia provided by divine Peace.
Preparation of Mesoporous BiVO4 for Efficient Photocatalytic Degradation of RhB Under Illuminated Visible Light
Authors: He Wenwen , Zhang Xiufang , Dong Xiaoli , Zhang Xinxin , Ma Chun , Ma Hongchao
Published: December 2016

The mesoporous BiVO
Bi-doped TiO2 with Remarkably Enhanced Photocatalytic Activity Under Simulated Sunlight Induced by Increased Hydrophilicity and Light Absorption Ability
Authors: Dong Xiaoli , Zhang Fan , Hua Chenghe , Rong Chuan , Zhang Xiufang , Ma Hongchao , Shi Fei , Zhang Xinxin , Ma Chun , Xue Mang
Published: December 2016

Bi-doped TiO
Regeneration of the Ti-SBA-15 Catalyst Used in the Process of Allyl Alcohol Epoxidation with Hydrogen Peroxide
Authors: Wróblewska A. , Makuch E.
Published: December 2016

Abstracts

The deactivation and regeneration of the Ti-SBA-15 catalyst used in the process of allyl alcohol epoxidation with 30 wt% hydrogen peroxide was studied. For the characteristic of the Ti-SBA-15 catalyst the following instrumental methods were applied: XRD, IR, UV-VIS, SEM and X-ray microanalysis. The catalyst was investigated in V cycles (29 stages) of the epoxidation process. The method of the regeneration of the Ti-SBA-15 catalyst (partially active or inactive) was proposed: after each epoxidation reaction, the catalyst was washed on the filter with deionized water and methanol, next it was dried in an oven (100ºC, 6 h) and again used in the epoxidation processes. When the catalyst was completely inactive (the conversion of AA was 0 mol%) it was calcinated in the oven at 550ºC during 5 h (apart from the washing on the filter and drying).
Quantum-dot-sensitized Solar Cells with Metal Electrodes
Authors: Sfaelou Stavroula , Dracopoulos Vassilios , Lianos Panagiotis
Published: December 2016

Quantum dot sensitized solar cells have been made by using nanocrystalline titania as photocatalyst, sensitized in the Visible by a combination of quantum dot sensitizers: first a layer of CdS, followed by deposition of CdSe and finally a passivation layer of ZnS on the top. An inox grid was used as anode electrode and its functionality was compared with that of transparent fluorine-doped tin oxide (FTO) electrodes. Cu
Abamectin Degradation by Advanced Oxidation Processes: Evaluation of Toxicity Reduction Using Daphnia similis
Authors: Guimarães José Roberto , Barbosa Izabela Major , Maniero Milena Guedes , Rath Susanne
Published: December 2016

This work evaluated the toxicity reduction of abamectin in an aqueous solution (500 μg L
Ozonation of 2-Chlorophenol in Aqueous Solution in a Novel Rotating Packed Contactor
Authors: Ku Young , Wu Chia-Ying , Hou Wei-Ming
Published: December 2016

A modified rotating packed contactor was designed and evaluated for the mass transfer of ozone and the ozonation efficiency of 2-chlorophenol under various operational conditions. The rotating packed contactor was composed of an immobilized disc and a rotating packed disc. Both the overall ozone transfer coefficient and decomposition rate of 2-chlorophenol by ozonation process in the modified rotating packed bed were enhanced with increasing rotor speed or decreasing gas/liquid flow rate ratio. The decomposition rate of 2-chlorophenol was accelerated by increasing H
Synthesis of RhB/BiOBr Hybrid Photocatalyst and its Utilization in Enhanced Degradation of Methyl Orange Via Visible-light Induced Photosensitization Process
Authors: Shen Kai , Gondal Mohammed Ashraf , Xu Qingyu , Shi Shan , Chang Xiaofeng
Published: December 2016

This investigation is related with the synthesis of Rhodamine B(RhB)/BiOBr hybrid photocatalyst and its enhanced photodegradation performance in removal of methyl orange (MO) from water under visible light irradiation. The microstructure and optical properties of as-synthesized RhB/BiOBr hybrid photocatalyst were characterized by XRD, UV-Vis DRS, FTIR and PL measurements. Compared with pure phase of BiOBr semiconductor, the photochemical experiments clearly demonstrated that the as-synthesized RhB/BiOBr hybrid photocatalyst show clear and noticeable improvement in photodegradation performance of methyl orange which is regarded as one of the most typical azo dyes in wastewater from textile industrial plants. This remarkable improvement in degradation is attributed mainly to the photosensitization process in presence of RhB.
Enhanced Photocatalytic Activity of Y and Pd-co-doped Bi2O3 Prepared by Parallel Flow Co-precipitation Method
Authors: Xiao Zhenghua , Zhong Junbo , Li Jianzhang , Huang Shengtian , Zeng Jun , Li Minjiao , Yong Gang
Published: December 2016

In this paper, Y and Pd co-doped Bi
Degradation of Diclofenac by Co3O4-catalyzed Activation of Oxone Process
Authors: Rao Yongfang , Chen Meijuan , Zhou Mingrui
Published: December 2016

Diclofenac (DCF) is one of the most frequently detected pharmaceuticals in the aquatic environment. This study investigated the heterogeneous activation of Oxone by Co
The Photocatalytic Conversion of (Biodiesel Derived) Glycerol to Hydrogen - A Short Review and Preliminary Experimental Results Part 1: A Review
Authors: Stelmachowski Marek , Marchwicka Malwina , Grabowska Ewelina , Diak Magdalena
Published: December 2016

The paper presents a short review of published results about different methods of waste glycerol conversion to the various chemicals and energy carriers as well the preliminary experimental results of the photocatalytic glycerol conversion into hydrogen. The first part of the paper presents literature data pertaining to the glycerol utilization, including thermal methods (incineration, pyrolysis, gasification and reforming), catalytic oxidation, chemical and biochemical conversion and photoconversion into hydrogen, are presented. The mechanism of selected processes and reaction conditions are also discussed. The second part of the paper presents the results of the hydrogen production over irradiated aqueous glycerol solution containing TiO
Preservation of Fresh Food Using AC Electric Field
Authors: Ito Takanori , Kawamura Tomoya , Nakagawa Akira , Yamazaki Shigeyoshi , Syuto Bunei , Takaki Koichi
Published: December 2016

We applied an AC electric field during freezing to improve the freshness of perishable food such as purple sea urchin. The AC voltage was generated with a transformer that had an amplitude of 10 kV and a frequency of 50 Hz. High AC voltage was applied to a metal shelf located in an incubator. The temperature in the incubator was controlled in the range from −15 to 30 °C. Protein in the drip eluted from the sample was analyzed to estimate the freshness of the perishable foods. The experimental results showed that the use of AC voltage during freezing is effective for preserving the freshness of the perishable foods.
Simultaneous Photocatalytic Reduction and Removal of Cr(VI) on TiO2 Immobilized by ACF
Authors: Yuan Jianjun , Yin Huacheng , Jiang Bo , Zheng Jingtang , Zhu Chaosheng , Sun Guanhua , Qiu Shi , Wang Han , Yang Liu , Zheng Jingwei , Wu Mingbo , Wu Wenting , Xiao Huiji
Published: December 2016

In this study, the composite material ACF/TiO
Non-thermal Plasma Technology for Methylene Blue Decolorization in Continuous and Circulating System: Kinetic Model and Reactor Performance
Authors: Yin Huacheng , Xiong Long , Jiang Bo , Zheng Jingtang , Xue Qinzhong
Published: December 2016

This study described methylene blue (MB) decolorization in continuous and circulating electrical plasma system constituted by an airtight plasma reactor and subsequent reaction column. The preferable parameters in continuous mode were input voltage of 45 kV, gas flow rate of 40 L h
Supercritical Water Oxidation of Oily Wastewater
Authors: Shoucheng Wen
Published: December 2016

Oily wastewater is waste originating from industries primarily engaged in refining crude oil and is a very complex compound of various oily wastes, water, heavy metals and so on. Supercritical water oxidation (SCWO) is applied to treat oily wastewater. The orthogonal experiment results showed that optimal technological parameter for SCWO of oily wastewater is that reaction temperature is 430 °C, OE is 0.75, initial concentration of oily wastewater is 30000 mg/L and reaction time is 15 min. COD removal is 99%. It is concluded that SCWO is an effective process for removing organic compounds from oily wastewater.
Solar and Artificial UV Inactivation of Bacterial Microbes by Ca-alginate Immobilized TiO2 Assisted by H2O2 Using Fluidized Bed Photoreactors
Authors: GilPavas Edison , Acevedo José , López Luis F. , Dobrosz-Gómez Izabela , Gómez-García Miguel Ángel
Published: December 2016

In this work, TiO
Catalytic Performance and Characterization of Copper-based Rare Earth Composite Materials for Selective Catalytic Oxidation Reaction with Simulated Synthetic Ammonia Stream
Authors: Dong Cheng-Di , Chen Chiu-Wen , Hung Chang-Mao
Published: December 2016

Renewable energy and fuels typically contain nitrogen compounds, which convert to ammonia (NH
Oxalic Acid Treating of ZSM-5 Zeolite for the Enhanced Photocatalytic Activity of TiO2/HZSM-5
Authors: Zhang Wenjie , Xin Hongliang , Yu Yang , He Hongbo
Published: December 2016

NaZSM-5 treated by oxalic acid was used as support to prepare TiO
Properties of In-TiO2 Photocatalyst as the Factors of Indium Doping Content and Calcination Temperature
Authors: Zhang Wenjie , Chen Jinlei , He Hongbo
Published: December 2016

In-doped TiO
Supercritical Water Oxidation of Wastewater-based Drilling Fluid with Glycol Addition
Authors: Chao Ma
Published: December 2016

Supercritical water oxidation (SCWO) of wastewater-based drilling fluid had been examined in a high-pressure reactor under the following conditions: reaction temperature, 520 °C to 580 °C; pressure, 26 MPa to 30 MPa; H
Simultaneous Degradation of Diuron and Hexazinone Herbicides by Photo-Fenton: Assessment of Concentrations of H2O2 and Fe2+ by the Response Surface Methodology
Authors: Martins Alysson S. , Vasconcelos Vanessa M. , Ferreira Tanare C. R. , Pereira-Filho Edenir R. , Lanza Marcos R. V.
Published: December 2016

Pesticides are often reported in aquatic environments contamination as being a result of soil leaching and improper disposal of agricultural packages. Advanced oxidation processes have been studied as alternatives to treat such compounds in aqueous media. The aim of this study was to determine the best concentrations of H
Semiconductor Mediated Photocatalytic Degradation of Plastics and Recalcitrant Organic Pollutants in Water: Effect of Additives and Fate of Insitu Formed H2O2
Authors: Phonsy P. D. , Anju S. G. , Jyothi K. P. , Yesodharan Suguna , Yesodharan E. P.
Published: December 2016

Contamination of water by chemical and bacterial pollutants as well as ‘white pollution’ caused by carelessly discarded waste plastics are major environmental problems. In the current study, the possibility of using semiconductor photocatalysis for the removal of last traces of organic water pollutants of different types is investigated. Semiconductors ZnO and TiO
Experimental Study on NO Removal Using Non-thermal Plasma Oxidation-alkali Absorption
Authors: Ding Shuilan , Yu Qi , Zhang Yingzhou , Liu Yuan , Xie Chunxue , Yu Gang
Published: December 2016

A non-thermal plasma oxidation-alkali absorption NO removal system is designed by connecting sequentially an alkali aqueous solution absorption device to a gas discharge reactor. An experimental system of simulated flue gas NO removal using non-thermal plasma oxidation and Ca(OH)
Factors Influencing the Ferric Ion-mediated Photochemical Decomposition of Perfluorooctane Sulfonate (PFOS) in Water
Authors: Jin Ling , Zhang Pengyi , Shao Tian
Published: December 2016

Perfluorooctane sulfonate (PFOS) has received increasing attention due to its persistence in the environment, accumulation and global occurrence. The enhancement of the photochemical oxidative degradation of perfluorooctane sulfonate upon addition of ferric ions under 254-nm UV and 185-nm vacuum UV (VUV) light was observed for the first time. In the presence of ferric ions (100 μM) and at pH 3.0, 85.3% of the initial PFOS (20 μM) was decomposed, with the rate constant of 1.92 d
The Influence of Irradiance and Humidity on the Photocatalytic Conversion of Nitrogen(II) Oxide
Authors: Engel Astrid , Große Julia , Dillert Ralf , Bahnemann Detlef W.
Published: December 2016

Experimental results of an investigation of the photocatalytic oxidation of nitrogen(II) oxide, NO, in air in the presence of UV(A) irradiated titanium dioxide powder are presented. In the experimental runs the NO inlet concentration, the UV(A) irradiance, and the absolute humidity was varied at constant temperature employing a flow-through plate-type photoreactor which is assumed to operate as a plug-flow reactor in a steady state with respect to the probe gas. The fractional conversion of NO increases with increasing irradiance in a non-linear manner, while it decreases with increasing water concentration in the gas phase. The data have been analysed employing a rate law recently proposed by Dillert et al. (Phys. Chem. Chem. Phys. 2013, 15, 20876-20886).
The Photocatalytic Performance of Benzene- Modified TiO2 Photocatalysts under UV-vis Light Irradiation
Authors: Kusiak-Nejman Ewelina , Wanag Agnieszka , Kowalczyk Łukasz , Tryba Beata , Kapica-Kozar Joanna , Morawski Antoni W.
Published: December 2016

In this study a photocatalytic performance of new carbon-modified titanium dioxide photocatalysts was discussed. Benzene was used as carbon precursor. It was found that the photocatalytic activity of obtained samples increases with the increase of modification temperature and decrease of carbon concentration present in TiO
Study of Continuous Ozonation Using A Venturi System of an Effluent Contaminated with Pharmaceuticals: Ibuprofen, Sodium Diclofenac and Sulfamethoxazole
Authors: Rojas Diego I. , Acevedo Ana L. , Muñoz Florinella
Published: December 2016

The use of ozone in water treatment is considered an advanced oxidation process (AOPs) because •OH radicals can be generated, depending on the water conditions. Since ozone is a gas, it has a limited mass transfer in a liquid, which depends on the applied system. In this study, we used a Venturi to inject ozone during the treatment of solutions prepared with three commonly prescribed pharmaceuticals: ibuprofen (anti-inflammatory), sodium diclofenac (analgesic) and sulfamethoxazole (antibiotic). We evaluated the effects of pH, alkalinity, the effluent flow rate and the number of recycles on the degradation of the pharmaceuticals during the ozonation. Under the best conditions of treatment, removals of 80.90% of sulfamethoxazole, 84.38% of sodium diclofenac and 44.26% of ibuprofen were reached. These and other drugs are currently classified as emerging pollutants, and the effect of their accumulation during the water cycle has not been clearly determined yet. This research presents an alternative for the treatment of effluents contaminated with these products.
Synthesis and Characterization of ZnO Nanorod Films on PET for Photocatalytic Disinfection of Water
Authors: Sanchez Luis , Guz Lucas , García Pilar , Ponce Silvia , Goyanes Silvia , Marchi María Claudia , Candal Roberto , Rodriguez Juan
Published: December 2016

ZnO nanorods (ZnO NRs) were grown on ZnO seeded polyethylene tert-phtalate (PET) substrates obtained from recycled soda bottles at low temperatures (90 °C) from Zn
Influence of the Iodide Source on the Photocatalytic Activity of Bismuth Oxyiodide
Authors: Pei Xule , Li Wentao , Deng Fang , Luo Xubiao , Li Fengcong , Liao Limei
Published: December 2016

A series of bismuth oxyiodide (BiOI) photocatalysts were synthesized via a hydrothermal process using KI, 1- vinyl-3-propylimidazolium iodide (VPI), and the mixture of KI and VPI as iodide source, and the obtained products were referred to as BiOI-KI, BiOI-VPI and BiOI-KI+VPI, respectively. The effect of iodide source on the physical-chemical properties and photocatalytic activities of BiOI was investigated. The BET surface areas of BiOI-KI, BiOI-KI+VPI and BiOI-VPI were 41.2, 24.9 and 15.5 m
Iron on Carbon Catalaysts for the Photocatalytic Degradation Orange II
Authors: Celis-Salazar Paula , Zea Hugo , Luhrs Claudia , Phillips Jonathan , Ramirez Jose
Published: December 2016

Orange II decomposition was studied on a variety of iron/carbon supported catalysts and control studies of the supports alone (carbon), and iron/alumina (non-active support). Variables tested included the impact of UV radiation, inclusion of hydrogen peroxide, catalyst treatment methods (oven treated and plasma torch treated) and type of the support. Results obtained for Orange II degradation indicated that active sites on carbon are more active for the catalytic decomposition of Orange II molecules, than metal sites. Oven-treated iron catalysts showed higher OII removal than catalysts prepared by plasma torch due to the fact that iron blocks carbon catalytic sites. XRD experiment on the non-active support allowed concluding that the oxidation state of Fe on the catalyst is not the main factor in the photocatalytic degradation of Orange II.
Effects of Calcination Process on Photocatalytic Activity of TiO2/MCM- 41 Photocatalyst
Authors: Dong Yeshuo , Fei Xuening , Zhang Hongwei , Yu Lu
Published: December 2016

MCM-41 mesoporous zeolite was pretreated by high temperature activation and hydrochloric acid treating. TiO
Enhanced Photo-induced Charge Separation and Simulated Solar Photocatalytic Activity of α-Fe2O3/BiOCl Prepared In-situ
Authors: Liu Xinlu , Zhong Junbo , Li Jianzhang , Huang Shengtian , Li Tianfeng
Published: December 2016

In this paper, α-Fe
Sol-gel Preparation of SrTiO3 Photocatalyst Loaded on HZSM-5 Zeolite
Authors: Zhang Wenjie , Du Ling , Ma Zheng , Bi Feifei , He Hongbo
Published: December 2016

Composite SrTiO
Fe3O4 Magnetic Nanoparticles: Characterization and Performance Exemplified by the Degradation of Methylene Blue in the Presence of Persulfate
Authors: Hung Chang-Mao , Chen Chiu-Wen , Jhuang Yu-Zhe , Dong Cheng-Di
Published: December 2016

In this study, the oxidation of methylene blue (MB) over iron oxide magnetic nanoparticles (Fe
Photocatalytic Degradation of Rhodamine B over Sulfated SiO2-TiO2 Composite by Sulphuric Acid Impregnation Method
Authors: Yan Xue-Min , Mei Ping , Gao Lin
Published: December 2016

Sulfate modified SiO
Effect of the Ratio of Crude Oil to Soil Organic Matter on H2O2 Decomposition and Oxidation of Crude oil in Contaminated Soils
Authors: Xu Jinlan , Cui Yiwei , Lei Rongjuan
Published: December 2016

Chemical oxidation with Fenton’s reagent (H
Fenton’s Oxidation Kinetics, Pathway, and Toxicity Evaluation of Diethyl Phthalate in Aqueous Solution
Authors: Zhang Qinqin , Wang Chuan , Lei Yangming
Published: December 2016

A comprehensive study of the chemical oxidation degradation of diethyl phthalate (DEP) was conducted through Fenton processes. Effects of various operating parameters that considerably affect DEP decomposition were investigated, including solution pH, H
Study on Cationic Red X-GRL Removal with Ce Doped Electrode
Authors: Li Weidong , Dai Qizhou , Wang Jiade , Zhou Jiazhong
Published: December 2016

This work investigated the degradation of cationic red X-GRL by electrochemical oxidation on a novel PbO
Purification Mechanism Analysis and performance Characterization of Mn-zeolite Catalyst
Authors: Li Tianxin , Zhang Xin , Wu Shiling , Meng Linglong , Ikhumhen Harrison Odion
Published: December 2016

In this study, the clinoptilolite is taken as the matrix, manganese nitrate as a modifier; through a medium temperature calcination pore making technique. Mostly, the micro pores in the matrix have been enlarged through the means of dipping and high temperature calcination modification. A small amount of active catalytic components are exchanged stably between the pores and surface. The mechanism of manufacturing new catalyst is analyzed using test methods of TEM, SEM, EDS, XRD and BET. These test methods testify the existence of active catalytic components of manganese in the Mn-Zeolite, while researching a new type of Mn-zeolite catalyst heterogeneous catalytic mechanism of Fenton and ozone oxidation process. The results show that added Mn-zeolite could improve the oxidation rate from 51% to 100%. Addition of free radical inhibitor, t-butanol, significantly inhibited the catalytic reaction of Fenton and ozone oxidation. This indicated that the mechanism of the reaction of Fenton and ozonation followed the hydroxyl radical.
On the Difference Between Air-cleaning and Self-cleaning
Authors: Abbas Nijmeh , Paz Yaron
Published: December 2016

There is a common notion in the field of photocatalysis that the same requirements for air purification hold also for self-cleaning surfaces, and that the same product may be adequate for the two purposes. This notion was tested on cementitious objects by comparing the activity of a series of commercially available TiO
Photocatalytic Abatement of Aqueous Ammonia on Ru/TiO2: Effects of the Route of Ru Nanoparticles Deposition on TiO2
Authors: Dozzi Maria Vittoria , Selli Elena
Published: December 2016

The effects of TiO
Characterization of B-TiO2 Synthesized under Different Conditions of Hydrolysis
Authors: May-Lozano M. , López-Medina R. , Rojas-García E. , Hernández-Pérez I. , Martínez-Delgadillo S. A.
Published: December 2016

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