BeVision S1は、光学顕微鏡と粒子画像解析技術を組み合わせた高度な装置であり、粉末や懸濁液中の粒子を直接観察し、粒子の大きさや形状を詳細に解析することが可能です。この装置は最大100倍の対物レンズを備えており、1µmサイズの微粒子であっても高精度に観察・解析することができます。BeVision S1は、粒子サイズや形状に関するデータを提供し、製造プロセスや品質管理、研究開発など多様な分野で活用されています。
機能と利点
- ● 測定範囲：1～3,000 µm
- ● 粒子径・粒子形状、計24項目を測定可能
- ● 乾式・湿式測定両方に対応
- ● ISO 9276-6に準拠した結果
- ● お求めやすい粒子画像分析装置
- ● 重なり合う粒子の自動識別機能付き
- ● オプションのBT-910乾燥粉末分散器を導入可能
ビデオ
What is Image Analysis? Fundamentals of BeVision Series 
How to Install and Operate BeVision S1 
Overview of BeVision Series | Precision in Particle Vision
概要
クラシックな粒子画像分析装置BeVision S1
BeVision S1は、光学顕微鏡と粒子画像解析技術を組み合わせた高度な装置であり、粉末や懸濁液中の粒子を直接観察し、粒子の大きさや形状を詳細に解析することが可能です。この装置は最大100倍の対物レンズを備えており、1µmサイズの微粒子であっても高精度に観察・解析することができます。BeVision S1は、粒子サイズや形状に関するデータを提供し、製造プロセスや品質管理、研究開発など多様な分野で活用されています。
装置概要・メリット
乾式・湿式サンプル両方に対応
粉末状、液体状サンプルをしっかり分散して分析可能
＊オプションのBT-910乾燥粉末分散器を使用することで、試料の迅速かつ再現性の高い分散が実現します。
光源の変換により幅広いアプリケーションへ対応可能
普通仕様に採用された光源はほとんどのサンプルの測定に適用します。様々なニーズにも対応できるように反射光源や偏光光源を選択することができます。（オプション）
重なり合う粒子の自動識別機能付き
重なり合う粒子を除外したり、分離したり、取得したデータの解析することができます。
測定可能な項目
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粒子径解析パラメータ
等価直径（Equivalent diameters）： 投影面積円相当径、投影周長円相当径；
フェレー径（Feret diameters）：フェレー最大径、フェレー最小径；
マーチン径（Martin diameters）：マーチン最大径、マーチン最小径；
ルジャンドルの慣性楕円（Legendre ellipse）：ルジャンドルの慣性楕円の長軸、ルジャンドルの慣性楕円の短軸；
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粒子形状解析パラメータ
2方向の解析：アスペクト比（aspect ratio）、縦横比（L/W ratio）、楕円比（ellipse ratio）
真円度と矩形度： 円形度（Circularity）、不規則性（irregularity）、コンパクト度（compactness）、エクステント（extent）、かさ指数（box ratio）；
輪郭の凹凸： 凹み度（Concavity）、凸度（convexity）、充実度（solidity）；
細長い粒子：長短度（Elongation）、直線度（straightness）；
BeVisionソフトウェア
乾式粉末測定をサポートする分散モジュール BT-910（オプション）
BT-910乾燥粉末分散モジュールは、設定された空気圧差を生成し、分散気流を駆動します。凝集体を分散し、均一に分散して測定することで乾燥粉末の信頼性の高い再現可能な分散法を提供します。粗い試料や脆い粒子にもダメージを与えることなく制御された条件下で分散でき、様々なアプリケーションに適しており経験レベルを問わず使いやすいプロセスです。
アプリケーション
Citations
- Bettersizer 2600
Functional redundancy as an indicator for evaluating functional diversity of macrobenthos under the mussel raft farm near Gouqi Island
DOI: 10.1016/j.aquaculture.2023.740024 Read Article
Zhejiang Ocean University | 2024Biological traits analysis (BTA) helps to evaluate the effects of different environmental variables on the traits-based functional composition of macrobenthos. However, research on functional traits of macrobenthos under mussel farming is limited. We investigated the spatial and temporal response of the benthic system in terms of taxonomic and functional diversity to environmental variables of farming and natural stressors resulting from suspended mussel farming near Gouqi Island of eastern China Sea. The functional traits of macrobenthic assemblages under mussel farming were characterized by “medium adult body size”, “vermiform body form”, “high flexibility”, “infauna”, “semi-motile”, “gonochoristic”, “surface deposit-feeders”, “carnivores”, “semi-motile burrowers”, and “tube-dwellers”. Functional redundancy was stable in response to mussel farming stresses among seasons, whereas species diversity showed efficient to evaluate natural variables. Functional diversity was significantly affected by farming stressors rather than natural variables, Further analysis using multivariate methods together with continuous monitoring were highlighted to evaluate the impacts of mussel farming. Our results reinforce the importance of macrobenthic species and functional traits analysis to evaluate human stresses driven impacts in offshore ecosystems. By analysing the environmental variables with different sources, independently, we concluded the main effects of human pressures on macrobenthic community. Such distinction could be particularly effective to isolate variable environmental descriptors and evaluate their effects on functional diversity, making the current approach promising for the evaluation of ecological effects of anthropogenic stressors in aquaculture areas. - Bettersizer 2600
Degradation characteristics and utilization strategies of a covalent bonded resin-based solid amine during capturing CO2 from flue gas
DOI: 10.1016/j.seppur.2023.125621 Read ArticleChina University of Petroleum | 2024In this study, various types of degradation as well as attrition which are possibly encountered in a circulating fluidized bed temperature swing adsorption (CFB-TSA) process, were conducted experimentally to evaluate the stability of a resin-based solid amine sorbent. Other characterizations methods, such as elemental analysis (EA), Fourier transform infrared spectroscopy (FTIR) etc. were applied to further reveal the degradation mechanisms. The results showed that thermal degradation occurs from 140–160 °C due to the decomposition of amine group. The CO2-induced degradation occurs from a higher temperature of 160–180 °C accompanied by the production of urea. Hydrothermal stability is good below 130 °C, but the ionic impurities in steam crystalized on particle surface can accelerate the degradation. Oxidative degradation is the most harmful, which starts at a lower temperature of 70–80 °C with the formation of aldehyde. The existence of H2O in atmosphere can alleviate the oxidative and CO2-induced degradations. The employed sorbent has a very low attrition index of 0.05, which is 1–2 orders lower than typical commercial fluidized bed catalysts. Based on the results of stability evaluation, some design suggestions for proper utilization of this sorbent or other similar resin-based sorbents have been provided in an industrial CFB-TSA process.
- Bettersizer 2600
De-branching of starch molecules enhanced the complexation with chitosan and its potential utilization for delivering hydrophobic compounds
DOI: 10.1016/j.foodhyd.2023.109498 Read ArticleShihezi University | 2024The current study aimed to prepare the complexes between debranched-waxy corn starch and chitosan polymers (DBS-CS), and then investigated their corresponding structural characteristics, rheological property and potent application in Pickering emulsion. The results indicated that the existence of chitosan significantly inhibited starch short-range molecular rearrangement for all DBS-CS samples, which was manipulated by both debranching treatment and chitosan content. Interestingly, this is the first study to reveal that the outstanding peak at 1.8 ppm in 1H NMR spectrum for sample DBS-CS was gradually shifted towards a lower-field region following an increased chitosan content. Moreover, the debranching treatment shifted the crystallinity pattern from A-type to B-type and the relative crystallinity of DBS-CS decreased gradually with the increased content of CS. All samples had a pseudoplastic fluid and shear-thinning behavior with an enhanced shear resistance following the complexation. The DBS-CS was applied in a Pickering emulsion for showing a greater emulsifying stability and a lower gel strength than native NS-CS prepared emulsion. Importantly, the encapsulation ability of curcumin in the DBS-CS emulsion was significantly improved, followed by an increase of 15.45% for its corresponding bioavailability compared to the control. Therefore, this study might highlight a potential carrier for delivering the bioactive substances in a green pattern. - Bettersizer 2600
Heat-induced aggregation behavior of wheat gluten after adding citrus pectin with different esterification degree
DOI: 10.1016/j.foodhyd.2023.109420 Read ArticleGansu Agricultural University | 2024Wheat gluten aggregation during heat treatment is beneficial to the final quality of gluten-based products. Exogenous pectin can affect gluten aggregation. However, the effect of pectin with different degrees of esterification on the heat-induced aggregation behavior of gluten and its possible mechanism are still unclear. Thus, the heat-induced aggregation behavior of gluten after adding pectin with different esterification degree was studied in this study. When the temperature was raised from 25 °C to 95 °C, pectin affected gluten aggregation and was related to the degree of esterification. Specifically, the results of rheological properties and particle size indicated that low-ester pectin improved the viscoelasticity of gluten and promoted gluten aggregation. Thermal properties revealed that enthalpy of gluten added with low-ester pectin (37%) increased from 92.96 J/g to 95.40 J/g during heating process. Structurally, the fluorescence intensity and surface hydrophobicity of gluten added with low-ester pectin (37%) were lower than those added with high-ester pectin (73%). In addition, low-ester pectin (37%) significantly increased the disulfide bond content (from 15.31 μmol/g to 18.06 μmol/g) and maintained β-sheet content of gluten compared with gluten alone at 95 °C, indicating that low-ester pectin was more likely to induce gluten aggregation. However, scanning electron microscope showed that the gluten added with low-ester pectin (46%) exhibited a denser network structure at 95 °C than that added with low-ester pectin (37%). These results will provide a theoretical base for the regulation of gluten aggregation and the quality of gluten-based products by pectin with different esterification degree.
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