نتایج جستجو برای: رنگبری ecf
تعداد نتایج: 1235 فیلتر نتایج به سال:
ملانوئیدینهای سنتز شده در سیستم مدل گلوکز و گلایسین (به عنوان یک مدل از ترکیبات رنگی موجود در شربت غلیظ چغندر قند) با استفاده از پودر کربن فعال رنگبری شده و به منظور دستیابی به شرایط بهینه رنگبری، از روش آماری سطح پاسخ (RSM) استفاده شد. نتایج به دست آمده نشان داد که شرایط بهینه رنگبری در حداکثر غلظت ملانوئیدینها (750 میلی گرم بر لیتر) عبارت بود از: 7 pH= و زمان تماس30 دقیقه. در این شرایط، کار...
Abstract This paper investigates strategic entrepreneurial choice between the UK Big 3 platforms–Crowdcube, Seedrs and SyndicateRoom–that exemplify three main equity crowdfunding (ECF) shareholder structures identified in literature. ECF has become a for both entrepreneurs angel venture capital funds as it offers mutually beneficial advantages to both, especially under co-investment model where...
During the past decade, equity crowdfunding (ECF) has emerged as an alternative funding channel for startup firms. In Germany, Small Investor Protection Act became binding in July 2015, with legislative goal to protect investors engaging this new asset class. Since then, pledging more than 1,000 EUR now must self-report their income and wealth. Investing 10,000 a single ECF issuer is only possi...
This paper examines whether solo founders are more likely to succeed in an initial equity crowdfunding (ECF) campaign and subsequently less fail than founder teams for a large sample of ECF campaigns conducted on the three largest UK platforms: Crowdcube, Seedrs SyndicateRoom. The results show that have lower probability conducting successful offerings teams, also thereafter. implication enjoy ...
The purpose of this exploratory study has been to provide insight into the success factors ECF campaigns and, in particular, explore role trust. In specific, research questions for are: (1) What dimensions have studied so far, and (2) is there any established literature on sustainability, blockchain technology trust realm ECF. To that end, a systematic review conducted by investigating ISI Web ...
امروزه به منظور حذف آلودگی آب، از جاذبهای ارزان قیمت استفاده میگردد. کیتوسان با دیاستیله کردن بیوپلیمرکیتین به دست میآید و کیتین از نظر فراوانی در جهان دومین پلیساکارید بعد از سلولز است. در این تحقیق رنگبری دو رنگزای آنیونی از پسابهای نساجی در سیستمهای یک جزئی و دو جزئی انجام شده است. رنگزای مستقیم آبی 78 (Direct Blue 78) و رنگزای اسیدی مشکی 26 (Acid Black 26) به عنوان مدل انتخاب شده است...
In γ-spectroscopy applications, one of the main effects that needs to be considered is self absorption photons – especially low energy within photon source, which may significantly different between calibration standard and sample analyzed. This effect highly dependent on material composition density thickness. A common way dealing with self-absorption issue by using Efficiency Correction Facto...
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